1 /* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013 Nicira, Inc.
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"
41 #include "ofproto/ofproto.h"
42 #include "poll-loop.h"
46 #include "socket-util.h"
48 #include "stream-ssl.h"
50 #include "system-stats.h"
55 #include "lib/vswitch-idl.h"
56 #include "xenserver.h"
58 #include "sflow_api.h"
59 #include "vlan-bitmap.h"
61 VLOG_DEFINE_THIS_MODULE(bridge);
63 COVERAGE_DEFINE(bridge_reconfigure);
65 /* Configuration of an uninstantiated iface. */
67 struct hmap_node hmap_node; /* Node in bridge's if_cfg_todo. */
68 const struct ovsrec_interface *cfg; /* Interface record. */
69 const struct ovsrec_port *parent; /* Parent port record. */
70 int64_t ofport; /* Requested OpenFlow port number. */
73 /* OpenFlow port slated for removal from ofproto. */
75 struct list list_node; /* Node in bridge's ofpp_garbage. */
76 uint16_t ofp_port; /* Port to be deleted. */
80 /* These members are always valid. */
81 struct list port_elem; /* Element in struct port's "ifaces" list. */
82 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
83 struct port *port; /* Containing port. */
84 char *name; /* Host network device name. */
86 /* These members are valid only after bridge_reconfigure() causes them to
88 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
89 int ofp_port; /* OpenFlow port number, -1 if unknown. */
90 struct netdev *netdev; /* Network device. */
91 const char *type; /* Usually same as cfg->type. */
92 const struct ovsrec_interface *cfg;
96 struct uuid uuid; /* UUID of this "mirror" record in database. */
97 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
98 struct bridge *bridge;
100 const struct ovsrec_mirror *cfg;
104 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
105 struct bridge *bridge;
108 const struct ovsrec_port *cfg;
110 /* An ordinary bridge port has 1 interface.
111 * A bridge port for bonding has at least 2 interfaces. */
112 struct list ifaces; /* List of "struct iface"s. */
116 struct hmap_node node; /* In 'all_bridges'. */
117 char *name; /* User-specified arbitrary name. */
118 char *type; /* Datapath type. */
119 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
120 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
121 const struct ovsrec_bridge *cfg;
123 /* OpenFlow switch processing. */
124 struct ofproto *ofproto; /* OpenFlow switch. */
127 struct hmap ports; /* "struct port"s indexed by name. */
128 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
129 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
131 struct list ofpp_garbage; /* "struct ofpp_garbage" slated for removal. */
132 struct hmap if_cfg_todo; /* "struct if_cfg"s slated for creation.
133 Indexed on 'cfg->name'. */
135 /* Port mirroring. */
136 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
138 /* Synthetic local port if necessary. */
139 struct ovsrec_port synth_local_port;
140 struct ovsrec_interface synth_local_iface;
141 struct ovsrec_interface *synth_local_ifacep;
144 /* All bridges, indexed by name. */
145 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
147 /* OVSDB IDL used to obtain configuration. */
148 static struct ovsdb_idl *idl;
150 /* We want to complete daemonization, fully detaching from our parent process,
151 * only after we have completed our initial configuration, committed our state
152 * to the database, and received confirmation back from the database server
153 * that it applied the commit. This allows our parent process to know that,
154 * post-detach, ephemeral fields such as datapath-id and ofport are very likely
155 * to have already been filled in. (It is only "very likely" rather than
156 * certain because there is always a slim possibility that the transaction will
157 * fail or that some other client has added new bridges, ports, etc. while
158 * ovs-vswitchd was configuring using an old configuration.)
160 * We only need to do this once for our initial configuration at startup, so
161 * 'initial_config_done' tracks whether we've already done it. While we are
162 * waiting for a response to our commit, 'daemonize_txn' tracks the transaction
163 * itself and is otherwise NULL. */
164 static bool initial_config_done;
165 static struct ovsdb_idl_txn *daemonize_txn;
167 /* Most recently processed IDL sequence number. */
168 static unsigned int idl_seqno;
170 /* Each time this timer expires, the bridge fetches interface and mirror
171 * statistics and pushes them into the database. */
172 #define IFACE_STATS_INTERVAL (5 * 1000) /* In milliseconds. */
173 static long long int iface_stats_timer = LLONG_MIN;
175 /* In some datapaths, creating and destroying OpenFlow ports can be extremely
176 * expensive. This can cause bridge_reconfigure() to take a long time during
177 * which no other work can be done. To deal with this problem, we limit port
178 * adds and deletions to a window of OFP_PORT_ACTION_WINDOW milliseconds per
179 * call to bridge_reconfigure(). If there is more work to do after the limit
180 * is reached, 'need_reconfigure', is flagged and it's done on the next loop.
181 * This allows the rest of the code to catch up on important things like
182 * forwarding packets. */
183 #define OFP_PORT_ACTION_WINDOW 10
184 static bool reconfiguring = false;
186 static void add_del_bridges(const struct ovsrec_open_vswitch *);
187 static void bridge_update_ofprotos(void);
188 static void bridge_create(const struct ovsrec_bridge *);
189 static void bridge_destroy(struct bridge *);
190 static struct bridge *bridge_lookup(const char *name);
191 static unixctl_cb_func bridge_unixctl_dump_flows;
192 static unixctl_cb_func bridge_unixctl_reconnect;
193 static size_t bridge_get_controllers(const struct bridge *br,
194 struct ovsrec_controller ***controllersp);
195 static void bridge_add_del_ports(struct bridge *,
196 const unsigned long int *splinter_vlans);
197 static void bridge_refresh_ofp_port(struct bridge *);
198 static void bridge_configure_datapath_id(struct bridge *);
199 static void bridge_configure_flow_eviction_threshold(struct bridge *);
200 static void bridge_configure_netflow(struct bridge *);
201 static void bridge_configure_forward_bpdu(struct bridge *);
202 static void bridge_configure_mac_table(struct bridge *);
203 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
204 static void bridge_configure_ipfix(struct bridge *);
205 static void bridge_configure_stp(struct bridge *);
206 static void bridge_configure_tables(struct bridge *);
207 static void bridge_configure_dp_desc(struct bridge *);
208 static void bridge_configure_remotes(struct bridge *,
209 const struct sockaddr_in *managers,
211 static void bridge_pick_local_hw_addr(struct bridge *,
212 uint8_t ea[ETH_ADDR_LEN],
213 struct iface **hw_addr_iface);
214 static uint64_t bridge_pick_datapath_id(struct bridge *,
215 const uint8_t bridge_ea[ETH_ADDR_LEN],
216 struct iface *hw_addr_iface);
217 static void bridge_queue_if_cfg(struct bridge *,
218 const struct ovsrec_interface *,
219 const struct ovsrec_port *);
220 static uint64_t dpid_from_hash(const void *, size_t nbytes);
221 static bool bridge_has_bond_fake_iface(const struct bridge *,
223 static bool port_is_bond_fake_iface(const struct port *);
225 static unixctl_cb_func qos_unixctl_show;
227 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
228 static void port_del_ifaces(struct port *);
229 static void port_destroy(struct port *);
230 static struct port *port_lookup(const struct bridge *, const char *name);
231 static void port_configure(struct port *);
232 static struct lacp_settings *port_configure_lacp(struct port *,
233 struct lacp_settings *);
234 static void port_configure_bond(struct port *, struct bond_settings *);
235 static bool port_is_synthetic(const struct port *);
237 static void reconfigure_system_stats(const struct ovsrec_open_vswitch *);
238 static void run_system_stats(void);
240 static void bridge_configure_mirrors(struct bridge *);
241 static struct mirror *mirror_create(struct bridge *,
242 const struct ovsrec_mirror *);
243 static void mirror_destroy(struct mirror *);
244 static bool mirror_configure(struct mirror *);
245 static void mirror_refresh_stats(struct mirror *);
247 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
248 static bool iface_create(struct bridge *, struct if_cfg *, int ofp_port);
249 static bool iface_is_internal(const struct ovsrec_interface *iface,
250 const struct ovsrec_bridge *br);
251 static const char *iface_get_type(const struct ovsrec_interface *,
252 const struct ovsrec_bridge *);
253 static void iface_destroy(struct iface *);
254 static struct iface *iface_lookup(const struct bridge *, const char *name);
255 static struct iface *iface_find(const char *name);
256 static struct if_cfg *if_cfg_lookup(const struct bridge *, const char *name);
257 static struct iface *iface_from_ofp_port(const struct bridge *,
259 static void iface_set_mac(struct iface *);
260 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
261 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
262 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
263 static void iface_configure_cfm(struct iface *);
264 static void iface_refresh_cfm_stats(struct iface *);
265 static void iface_refresh_stats(struct iface *);
266 static void iface_refresh_status(struct iface *);
267 static bool iface_is_synthetic(const struct iface *);
268 static int64_t iface_pick_ofport(const struct ovsrec_interface *);
270 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
272 * This is deprecated. It is only for compatibility with broken device drivers
273 * in old versions of Linux that do not properly support VLANs when VLAN
274 * devices are not used. When broken device drivers are no longer in
275 * widespread use, we will delete these interfaces. */
277 /* True if VLAN splinters are enabled on any interface, false otherwise.*/
278 static bool vlan_splinters_enabled_anywhere;
280 static bool vlan_splinters_is_enabled(const struct ovsrec_interface *);
281 static unsigned long int *collect_splinter_vlans(
282 const struct ovsrec_open_vswitch *);
283 static void configure_splinter_port(struct port *);
284 static void add_vlan_splinter_ports(struct bridge *,
285 const unsigned long int *splinter_vlans,
286 struct shash *ports);
289 bridge_init_ofproto(const struct ovsrec_open_vswitch *cfg)
291 struct shash iface_hints;
292 static bool initialized = false;
299 shash_init(&iface_hints);
302 for (i = 0; i < cfg->n_bridges; i++) {
303 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
306 for (j = 0; j < br_cfg->n_ports; j++) {
307 struct ovsrec_port *port_cfg = br_cfg->ports[j];
310 for (k = 0; k < port_cfg->n_interfaces; k++) {
311 struct ovsrec_interface *if_cfg = port_cfg->interfaces[k];
312 struct iface_hint *iface_hint;
314 iface_hint = xmalloc(sizeof *iface_hint);
315 iface_hint->br_name = br_cfg->name;
316 iface_hint->br_type = br_cfg->datapath_type;
317 iface_hint->ofp_port = iface_pick_ofport(if_cfg);
319 shash_add(&iface_hints, if_cfg->name, iface_hint);
325 ofproto_init(&iface_hints);
327 shash_destroy_free_data(&iface_hints);
331 /* Public functions. */
333 /* Initializes the bridge module, configuring it to obtain its configuration
334 * from an OVSDB server accessed over 'remote', which should be a string in a
335 * form acceptable to ovsdb_idl_create(). */
337 bridge_init(const char *remote)
339 /* Create connection to database. */
340 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true, true);
341 idl_seqno = ovsdb_idl_get_seqno(idl);
342 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
343 ovsdb_idl_verify_write_only(idl);
345 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
346 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
347 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
348 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
349 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
350 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
351 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
353 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
354 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
355 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
357 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
358 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
359 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
360 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
362 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
363 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
364 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
365 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
366 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
367 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mac_in_use);
368 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
369 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
370 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
371 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
372 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
373 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault_status);
374 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
375 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_health);
376 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_opstate);
377 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_bfd_status);
378 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
379 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
381 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
382 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
383 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
384 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
386 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
388 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
390 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
391 ovsdb_idl_omit_alert(idl, &ovsrec_mirror_col_statistics);
393 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
394 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
395 ovsdb_idl_omit(idl, &ovsrec_ipfix_col_external_ids);
396 ovsdb_idl_omit(idl, &ovsrec_flow_sample_collector_set_col_external_ids);
398 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
399 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
400 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
401 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
402 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
404 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
406 /* Register unixctl commands. */
407 unixctl_command_register("qos/show", "interface", 1, 1,
408 qos_unixctl_show, NULL);
409 unixctl_command_register("bridge/dump-flows", "bridge", 1, 1,
410 bridge_unixctl_dump_flows, NULL);
411 unixctl_command_register("bridge/reconnect", "[bridge]", 0, 1,
412 bridge_unixctl_reconnect, NULL);
422 struct bridge *br, *next_br;
424 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
427 ovsdb_idl_destroy(idl);
430 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
431 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
432 * responsible for freeing '*managersp' (with free()).
434 * You may be asking yourself "why does ovs-vswitchd care?", because
435 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
436 * should not be and in fact is not directly involved in that. But
437 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
438 * it has to tell in-band control where the managers are to enable that.
439 * (Thus, only managers connected in-band are collected.)
442 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
443 struct sockaddr_in **managersp, size_t *n_managersp)
445 struct sockaddr_in *managers = NULL;
446 size_t n_managers = 0;
450 /* Collect all of the potential targets from the "targets" columns of the
451 * rows pointed to by "manager_options", excluding any that are
454 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
455 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
457 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
458 sset_find_and_delete(&targets, m->target);
460 sset_add(&targets, m->target);
464 /* Now extract the targets' IP addresses. */
465 if (!sset_is_empty(&targets)) {
468 managers = xmalloc(sset_count(&targets) * sizeof *managers);
469 SSET_FOR_EACH (target, &targets) {
470 struct sockaddr_in *sin = &managers[n_managers];
472 if (stream_parse_target_with_default_ports(target,
480 sset_destroy(&targets);
482 *managersp = managers;
483 *n_managersp = n_managers;
487 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
489 unsigned long int *splinter_vlans;
492 COVERAGE_INC(bridge_reconfigure);
494 ovs_assert(!reconfiguring);
495 reconfiguring = true;
497 /* Destroy "struct bridge"s, "struct port"s, and "struct iface"s according
498 * to 'ovs_cfg' while update the "if_cfg_queue", with only very minimal
499 * configuration otherwise.
501 * This is mostly an update to bridge data structures. Nothing is pushed
502 * down to ofproto or lower layers. */
503 add_del_bridges(ovs_cfg);
504 splinter_vlans = collect_splinter_vlans(ovs_cfg);
505 HMAP_FOR_EACH (br, node, &all_bridges) {
506 bridge_add_del_ports(br, splinter_vlans);
508 free(splinter_vlans);
510 /* Delete datapaths that are no longer configured, and create ones which
511 * don't exist but should. */
512 bridge_update_ofprotos();
514 /* Make sure each "struct iface" has a correct ofp_port in its ofproto. */
515 HMAP_FOR_EACH (br, node, &all_bridges) {
516 bridge_refresh_ofp_port(br);
519 /* Clear database records for "if_cfg"s which haven't been instantiated. */
520 HMAP_FOR_EACH (br, node, &all_bridges) {
521 struct if_cfg *if_cfg;
523 HMAP_FOR_EACH (if_cfg, hmap_node, &br->if_cfg_todo) {
524 iface_clear_db_record(if_cfg->cfg);
528 reconfigure_system_stats(ovs_cfg);
532 bridge_reconfigure_ofp(void)
534 long long int deadline;
538 deadline = time_msec() + OFP_PORT_ACTION_WINDOW;
540 /* The kernel will reject any attempt to add a given port to a datapath if
541 * that port already belongs to a different datapath, so we must do all
542 * port deletions before any port additions. */
543 HMAP_FOR_EACH (br, node, &all_bridges) {
544 struct ofpp_garbage *garbage, *next;
546 LIST_FOR_EACH_SAFE (garbage, next, list_node, &br->ofpp_garbage) {
547 /* It's a bit dangerous to call bridge_run_fast() here as ofproto's
548 * internal datastructures may not be consistent. Eventually, when
549 * port additions and deletions are cheaper, these calls should be
552 ofproto_port_del(br->ofproto, garbage->ofp_port);
553 list_remove(&garbage->list_node);
557 if (time_msec() >= deadline) {
564 HMAP_FOR_EACH (br, node, &all_bridges) {
565 struct if_cfg *if_cfg, *next;
567 HMAP_FOR_EACH_SAFE (if_cfg, next, hmap_node, &br->if_cfg_todo) {
568 iface_create(br, if_cfg, -1);
570 if (time_msec() >= deadline) {
580 bridge_reconfigure_continue(const struct ovsrec_open_vswitch *ovs_cfg)
582 struct sockaddr_in *managers;
583 int sflow_bridge_number;
588 ovs_assert(reconfiguring);
589 done = bridge_reconfigure_ofp();
591 /* Complete the configuration. */
592 sflow_bridge_number = 0;
593 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
594 HMAP_FOR_EACH (br, node, &all_bridges) {
597 /* We need the datapath ID early to allow LACP ports to use it as the
598 * default system ID. */
599 bridge_configure_datapath_id(br);
601 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
604 port_configure(port);
606 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
607 iface_configure_cfm(iface);
608 iface_configure_qos(iface, port->cfg->qos);
609 iface_set_mac(iface);
610 ofproto_port_set_bfd(br->ofproto, iface->ofp_port,
614 bridge_configure_mirrors(br);
615 bridge_configure_flow_eviction_threshold(br);
616 bridge_configure_forward_bpdu(br);
617 bridge_configure_mac_table(br);
618 bridge_configure_remotes(br, managers, n_managers);
619 bridge_configure_netflow(br);
620 bridge_configure_sflow(br, &sflow_bridge_number);
621 bridge_configure_ipfix(br);
622 bridge_configure_stp(br);
623 bridge_configure_tables(br);
624 bridge_configure_dp_desc(br);
631 /* Delete ofprotos which aren't configured or have the wrong type. Create
632 * ofprotos which don't exist but need to. */
634 bridge_update_ofprotos(void)
636 struct bridge *br, *next;
641 /* Delete ofprotos with no bridge or with the wrong type. */
644 ofproto_enumerate_types(&types);
645 SSET_FOR_EACH (type, &types) {
648 ofproto_enumerate_names(type, &names);
649 SSET_FOR_EACH (name, &names) {
650 br = bridge_lookup(name);
651 if (!br || strcmp(type, br->type)) {
652 ofproto_delete(name, type);
656 sset_destroy(&names);
657 sset_destroy(&types);
659 /* Add ofprotos for bridges which don't have one yet. */
660 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
668 /* Remove ports from any datapath with the same name as 'br'. If we
669 * don't do this, creating 'br''s ofproto will fail because a port with
670 * the same name as its local port already exists. */
671 HMAP_FOR_EACH (br2, node, &all_bridges) {
672 struct ofproto_port ofproto_port;
678 if (!ofproto_port_query_by_name(br2->ofproto, br->name,
680 error = ofproto_port_del(br2->ofproto, ofproto_port.ofp_port);
682 VLOG_ERR("failed to delete port %s: %s", ofproto_port.name,
685 ofproto_port_destroy(&ofproto_port);
689 error = ofproto_create(br->name, br->type, &br->ofproto);
691 VLOG_ERR("failed to create bridge %s: %s", br->name,
699 port_configure(struct port *port)
701 const struct ovsrec_port *cfg = port->cfg;
702 struct bond_settings bond_settings;
703 struct lacp_settings lacp_settings;
704 struct ofproto_bundle_settings s;
707 if (cfg->vlan_mode && !strcmp(cfg->vlan_mode, "splinter")) {
708 configure_splinter_port(port);
717 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
718 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
719 s.slaves[s.n_slaves++] = iface->ofp_port;
724 if (cfg->tag && *cfg->tag >= 0 && *cfg->tag <= 4095) {
728 /* Get VLAN trunks. */
731 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
735 if (cfg->vlan_mode) {
736 if (!strcmp(cfg->vlan_mode, "access")) {
737 s.vlan_mode = PORT_VLAN_ACCESS;
738 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
739 s.vlan_mode = PORT_VLAN_TRUNK;
740 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
741 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
742 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
743 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
745 /* This "can't happen" because ovsdb-server should prevent it. */
746 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
747 s.vlan_mode = PORT_VLAN_TRUNK;
751 s.vlan_mode = PORT_VLAN_ACCESS;
753 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
757 s.vlan_mode = PORT_VLAN_TRUNK;
760 s.use_priority_tags = smap_get_bool(&cfg->other_config, "priority-tags",
763 /* Get LACP settings. */
764 s.lacp = port_configure_lacp(port, &lacp_settings);
768 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
769 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
770 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
773 s.lacp_slaves = NULL;
776 /* Get bond settings. */
777 if (s.n_slaves > 1) {
778 s.bond = &bond_settings;
779 port_configure_bond(port, &bond_settings);
782 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
783 netdev_set_miimon_interval(iface->netdev, 0);
788 ofproto_bundle_register(port->bridge->ofproto, port, &s);
796 /* Pick local port hardware address and datapath ID for 'br'. */
798 bridge_configure_datapath_id(struct bridge *br)
800 uint8_t ea[ETH_ADDR_LEN];
802 struct iface *local_iface;
803 struct iface *hw_addr_iface;
806 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
807 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
809 int error = netdev_set_etheraddr(local_iface->netdev, ea);
811 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
812 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
813 "Ethernet address: %s",
814 br->name, strerror(error));
817 memcpy(br->ea, ea, ETH_ADDR_LEN);
819 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
820 if (dpid != ofproto_get_datapath_id(br->ofproto)) {
821 VLOG_INFO("bridge %s: using datapath ID %016"PRIx64, br->name, dpid);
822 ofproto_set_datapath_id(br->ofproto, dpid);
825 dpid_string = xasprintf("%016"PRIx64, dpid);
826 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
830 /* Returns a bitmap of "enum ofputil_protocol"s that are allowed for use with
833 bridge_get_allowed_versions(struct bridge *br)
835 if (!br->cfg->n_protocols)
838 return ofputil_versions_from_strings(br->cfg->protocols,
839 br->cfg->n_protocols);
842 /* Set NetFlow configuration on 'br'. */
844 bridge_configure_netflow(struct bridge *br)
846 struct ovsrec_netflow *cfg = br->cfg->netflow;
847 struct netflow_options opts;
850 ofproto_set_netflow(br->ofproto, NULL);
854 memset(&opts, 0, sizeof opts);
856 /* Get default NetFlow configuration from datapath.
857 * Apply overrides from 'cfg'. */
858 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
859 if (cfg->engine_type) {
860 opts.engine_type = *cfg->engine_type;
862 if (cfg->engine_id) {
863 opts.engine_id = *cfg->engine_id;
866 /* Configure active timeout interval. */
867 opts.active_timeout = cfg->active_timeout;
868 if (!opts.active_timeout) {
869 opts.active_timeout = -1;
870 } else if (opts.active_timeout < 0) {
871 VLOG_WARN("bridge %s: active timeout interval set to negative "
872 "value, using default instead (%d seconds)", br->name,
873 NF_ACTIVE_TIMEOUT_DEFAULT);
874 opts.active_timeout = -1;
877 /* Add engine ID to interface number to disambiguate bridgs? */
878 opts.add_id_to_iface = cfg->add_id_to_interface;
879 if (opts.add_id_to_iface) {
880 if (opts.engine_id > 0x7f) {
881 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
882 "another vswitch, choose an engine id less than 128",
885 if (hmap_count(&br->ports) > 508) {
886 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
887 "another port when more than 508 ports are used",
893 sset_init(&opts.collectors);
894 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
897 if (ofproto_set_netflow(br->ofproto, &opts)) {
898 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
900 sset_destroy(&opts.collectors);
903 /* Set sFlow configuration on 'br'. */
905 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
907 const struct ovsrec_sflow *cfg = br->cfg->sflow;
908 struct ovsrec_controller **controllers;
909 struct ofproto_sflow_options oso;
910 size_t n_controllers;
914 ofproto_set_sflow(br->ofproto, NULL);
918 memset(&oso, 0, sizeof oso);
920 sset_init(&oso.targets);
921 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
923 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
925 oso.sampling_rate = *cfg->sampling;
928 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
930 oso.polling_interval = *cfg->polling;
933 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
935 oso.header_len = *cfg->header;
938 oso.sub_id = (*sflow_bridge_number)++;
939 oso.agent_device = cfg->agent;
941 oso.control_ip = NULL;
942 n_controllers = bridge_get_controllers(br, &controllers);
943 for (i = 0; i < n_controllers; i++) {
944 if (controllers[i]->local_ip) {
945 oso.control_ip = controllers[i]->local_ip;
949 ofproto_set_sflow(br->ofproto, &oso);
951 sset_destroy(&oso.targets);
954 /* Set IPFIX configuration on 'br'. */
956 bridge_configure_ipfix(struct bridge *br)
958 const struct ovsrec_ipfix *be_cfg = br->cfg->ipfix;
959 const struct ovsrec_flow_sample_collector_set *fe_cfg;
960 struct ofproto_ipfix_bridge_exporter_options be_opts;
961 struct ofproto_ipfix_flow_exporter_options *fe_opts = NULL;
962 size_t n_fe_opts = 0;
964 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
965 if (fe_cfg->bridge == br->cfg) {
970 if (!be_cfg && n_fe_opts == 0) {
971 ofproto_set_ipfix(br->ofproto, NULL, NULL, 0);
976 memset(&be_opts, 0, sizeof be_opts);
978 sset_init(&be_opts.targets);
979 sset_add_array(&be_opts.targets, be_cfg->targets, be_cfg->n_targets);
981 if (be_cfg->sampling) {
982 be_opts.sampling_rate = *be_cfg->sampling;
984 be_opts.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
986 if (be_cfg->obs_domain_id) {
987 be_opts.obs_domain_id = *be_cfg->obs_domain_id;
989 if (be_cfg->obs_point_id) {
990 be_opts.obs_point_id = *be_cfg->obs_point_id;
995 struct ofproto_ipfix_flow_exporter_options *opts;
996 fe_opts = xcalloc(n_fe_opts, sizeof *fe_opts);
998 OVSREC_FLOW_SAMPLE_COLLECTOR_SET_FOR_EACH(fe_cfg, idl) {
999 if (fe_cfg->bridge == br->cfg) {
1000 opts->collector_set_id = fe_cfg->id;
1001 sset_init(&opts->targets);
1002 sset_add_array(&opts->targets, fe_cfg->ipfix->targets,
1003 fe_cfg->ipfix->n_targets);
1009 ofproto_set_ipfix(br->ofproto, be_cfg ? &be_opts : NULL, fe_opts,
1013 sset_destroy(&be_opts.targets);
1016 if (n_fe_opts > 0) {
1017 struct ofproto_ipfix_flow_exporter_options *opts = fe_opts;
1019 for (i = 0; i < n_fe_opts; i++) {
1020 sset_destroy(&opts->targets);
1028 port_configure_stp(const struct ofproto *ofproto, struct port *port,
1029 struct ofproto_port_stp_settings *port_s,
1030 int *port_num_counter, unsigned long *port_num_bitmap)
1032 const char *config_str;
1033 struct iface *iface;
1035 if (!smap_get_bool(&port->cfg->other_config, "stp-enable", true)) {
1036 port_s->enable = false;
1039 port_s->enable = true;
1042 /* STP over bonds is not supported. */
1043 if (!list_is_singleton(&port->ifaces)) {
1044 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
1046 port_s->enable = false;
1050 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1052 /* Internal ports shouldn't participate in spanning tree, so
1054 if (!strcmp(iface->type, "internal")) {
1055 VLOG_DBG("port %s: disable STP on internal ports", port->name);
1056 port_s->enable = false;
1060 /* STP on mirror output ports is not supported. */
1061 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
1062 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
1063 port_s->enable = false;
1067 config_str = smap_get(&port->cfg->other_config, "stp-port-num");
1069 unsigned long int port_num = strtoul(config_str, NULL, 0);
1070 int port_idx = port_num - 1;
1072 if (port_num < 1 || port_num > STP_MAX_PORTS) {
1073 VLOG_ERR("port %s: invalid stp-port-num", port->name);
1074 port_s->enable = false;
1078 if (bitmap_is_set(port_num_bitmap, port_idx)) {
1079 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
1080 port->name, port_num);
1081 port_s->enable = false;
1084 bitmap_set1(port_num_bitmap, port_idx);
1085 port_s->port_num = port_idx;
1087 if (*port_num_counter >= STP_MAX_PORTS) {
1088 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
1089 port_s->enable = false;
1093 port_s->port_num = (*port_num_counter)++;
1096 config_str = smap_get(&port->cfg->other_config, "stp-path-cost");
1098 port_s->path_cost = strtoul(config_str, NULL, 10);
1100 enum netdev_features current;
1103 netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1104 mbps = netdev_features_to_bps(current, 100 * 1000 * 1000) / 1000000;
1105 port_s->path_cost = stp_convert_speed_to_cost(mbps);
1108 config_str = smap_get(&port->cfg->other_config, "stp-port-priority");
1110 port_s->priority = strtoul(config_str, NULL, 0);
1112 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
1116 /* Set spanning tree configuration on 'br'. */
1118 bridge_configure_stp(struct bridge *br)
1120 if (!br->cfg->stp_enable) {
1121 ofproto_set_stp(br->ofproto, NULL);
1123 struct ofproto_stp_settings br_s;
1124 const char *config_str;
1126 int port_num_counter;
1127 unsigned long *port_num_bitmap;
1129 config_str = smap_get(&br->cfg->other_config, "stp-system-id");
1131 uint8_t ea[ETH_ADDR_LEN];
1133 if (eth_addr_from_string(config_str, ea)) {
1134 br_s.system_id = eth_addr_to_uint64(ea);
1136 br_s.system_id = eth_addr_to_uint64(br->ea);
1137 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
1138 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
1141 br_s.system_id = eth_addr_to_uint64(br->ea);
1144 config_str = smap_get(&br->cfg->other_config, "stp-priority");
1146 br_s.priority = strtoul(config_str, NULL, 0);
1148 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
1151 config_str = smap_get(&br->cfg->other_config, "stp-hello-time");
1153 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
1155 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
1158 config_str = smap_get(&br->cfg->other_config, "stp-max-age");
1160 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
1162 br_s.max_age = STP_DEFAULT_MAX_AGE;
1165 config_str = smap_get(&br->cfg->other_config, "stp-forward-delay");
1167 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
1169 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
1172 /* Configure STP on the bridge. */
1173 if (ofproto_set_stp(br->ofproto, &br_s)) {
1174 VLOG_ERR("bridge %s: could not enable STP", br->name);
1178 /* Users must either set the port number with the "stp-port-num"
1179 * configuration on all ports or none. If manual configuration
1180 * is not done, then we allocate them sequentially. */
1181 port_num_counter = 0;
1182 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
1183 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1184 struct ofproto_port_stp_settings port_s;
1185 struct iface *iface;
1187 port_configure_stp(br->ofproto, port, &port_s,
1188 &port_num_counter, port_num_bitmap);
1190 /* As bonds are not supported, just apply configuration to
1191 * all interfaces. */
1192 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1193 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
1195 VLOG_ERR("port %s: could not enable STP", port->name);
1201 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
1202 && port_num_counter) {
1203 VLOG_ERR("bridge %s: must manually configure all STP port "
1204 "IDs or none, disabling", br->name);
1205 ofproto_set_stp(br->ofproto, NULL);
1207 bitmap_free(port_num_bitmap);
1212 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
1214 const struct port *port = port_lookup(br, name);
1215 return port && port_is_bond_fake_iface(port);
1219 port_is_bond_fake_iface(const struct port *port)
1221 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
1225 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
1227 struct bridge *br, *next;
1228 struct shash new_br;
1231 /* Collect new bridges' names and types. */
1232 shash_init(&new_br);
1233 for (i = 0; i < cfg->n_bridges; i++) {
1234 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1235 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1237 if (strchr(br_cfg->name, '/')) {
1238 /* Prevent remote ovsdb-server users from accessing arbitrary
1239 * directories, e.g. consider a bridge named "../../../etc/". */
1240 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
1242 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
1243 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
1247 /* Get rid of deleted bridges or those whose types have changed.
1248 * Update 'cfg' of bridges that still exist. */
1249 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
1250 br->cfg = shash_find_data(&new_br, br->name);
1251 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
1252 br->cfg->datapath_type))) {
1257 /* Add new bridges. */
1258 for (i = 0; i < cfg->n_bridges; i++) {
1259 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
1260 struct bridge *br = bridge_lookup(br_cfg->name);
1262 bridge_create(br_cfg);
1266 shash_destroy(&new_br);
1270 iface_set_ofp_port(struct iface *iface, int ofp_port)
1272 struct bridge *br = iface->port->bridge;
1274 ovs_assert(iface->ofp_port < 0 && ofp_port >= 0);
1275 iface->ofp_port = ofp_port;
1276 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1277 iface_set_ofport(iface->cfg, ofp_port);
1280 /* Configures 'netdev' based on the "options" column in 'iface_cfg'.
1281 * Returns 0 if successful, otherwise a positive errno value. */
1283 iface_set_netdev_config(const struct ovsrec_interface *iface_cfg,
1284 struct netdev *netdev)
1288 error = netdev_set_config(netdev, &iface_cfg->options);
1290 VLOG_WARN("could not configure network device %s (%s)",
1291 iface_cfg->name, strerror(error));
1296 /* This function determines whether 'ofproto_port', which is attached to
1297 * br->ofproto's datapath, is one that we want in 'br'.
1299 * If it is, it returns true, after creating an iface (if necessary),
1300 * configuring the iface's netdev according to the iface's options, and setting
1301 * iface's ofp_port member to 'ofproto_port->ofp_port'.
1303 * If, on the other hand, 'port' should be removed, it returns false. The
1304 * caller should later detach the port from br->ofproto. */
1306 bridge_refresh_one_ofp_port(struct bridge *br,
1307 const struct ofproto_port *ofproto_port)
1309 const char *name = ofproto_port->name;
1310 const char *type = ofproto_port->type;
1311 uint16_t ofp_port = ofproto_port->ofp_port;
1313 struct iface *iface = iface_lookup(br, name);
1315 /* Check that the name-to-number mapping is one-to-one. */
1316 if (iface->ofp_port >= 0) {
1317 VLOG_WARN("bridge %s: interface %s reported twice",
1320 } else if (iface_from_ofp_port(br, ofp_port)) {
1321 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1322 br->name, ofp_port);
1326 /* There's a configured interface named 'name'. */
1327 if (strcmp(type, iface->type)
1328 || iface_set_netdev_config(iface->cfg, iface->netdev)) {
1329 /* It's the wrong type, or it's the right type but can't be
1330 * configured as the user requested, so we must destroy it. */
1333 /* It's the right type and configured correctly. Keep it. */
1334 iface_set_ofp_port(iface, ofp_port);
1337 } else if (bridge_has_bond_fake_iface(br, name)
1338 && !strcmp(type, "internal")) {
1339 /* It's a bond fake iface. Keep it. */
1342 /* There's no configured interface named 'name', but there might be an
1343 * interface of that name queued to be created.
1345 * If there is, and it has the correct type, then try to configure it
1346 * and add it. If that's successful, we'll keep it. Otherwise, we'll
1347 * delete it and later try to re-add it. */
1348 struct if_cfg *if_cfg = if_cfg_lookup(br, name);
1350 && !strcmp(type, iface_get_type(if_cfg->cfg, br->cfg))
1351 && iface_create(br, if_cfg, ofp_port));
1355 /* Update bridges "if_cfg"s, "struct port"s, and "struct iface"s to be
1356 * consistent with the ofp_ports in "br->ofproto". */
1358 bridge_refresh_ofp_port(struct bridge *br)
1360 struct ofproto_port_dump dump;
1361 struct ofproto_port ofproto_port;
1362 struct port *port, *port_next;
1364 /* Clear each "struct iface"s ofp_port so we can get its correct value. */
1365 hmap_clear(&br->ifaces);
1366 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1367 struct iface *iface;
1369 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1370 iface->ofp_port = -1;
1374 /* Obtain the correct "ofp_port"s from ofproto. Find any if_cfg's which
1375 * already exist in the datapath and promote them to full fledged "struct
1376 * iface"s. Mark ports in the datapath which don't belong as garbage. */
1377 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1378 if (!bridge_refresh_one_ofp_port(br, &ofproto_port)) {
1379 struct ofpp_garbage *garbage = xmalloc(sizeof *garbage);
1380 garbage->ofp_port = ofproto_port.ofp_port;
1381 list_push_front(&br->ofpp_garbage, &garbage->list_node);
1385 /* Some ifaces may not have "ofp_port"s in ofproto and therefore don't
1386 * deserve to have "struct iface"s. Demote these to "if_cfg"s so that
1387 * later they can be added to ofproto. */
1388 HMAP_FOR_EACH_SAFE (port, port_next, hmap_node, &br->ports) {
1389 struct iface *iface, *iface_next;
1391 LIST_FOR_EACH_SAFE (iface, iface_next, port_elem, &port->ifaces) {
1392 if (iface->ofp_port < 0) {
1393 bridge_queue_if_cfg(br, iface->cfg, port->cfg);
1394 iface_destroy(iface);
1398 if (list_is_empty(&port->ifaces)) {
1404 /* Opens a network device for 'if_cfg' and configures it. If '*ofp_portp'
1405 * is negative, adds the network device to br->ofproto and stores the OpenFlow
1406 * port number in '*ofp_portp'; otherwise leaves br->ofproto and '*ofp_portp'
1409 * If successful, returns 0 and stores the network device in '*netdevp'. On
1410 * failure, returns a positive errno value and stores NULL in '*netdevp'. */
1412 iface_do_create(const struct bridge *br,
1413 const struct if_cfg *if_cfg,
1414 int *ofp_portp, struct netdev **netdevp)
1416 const struct ovsrec_interface *iface_cfg = if_cfg->cfg;
1417 const struct ovsrec_port *port_cfg = if_cfg->parent;
1418 struct netdev *netdev;
1421 error = netdev_open(iface_cfg->name,
1422 iface_get_type(iface_cfg, br->cfg), &netdev);
1424 VLOG_WARN("could not open network device %s (%s)",
1425 iface_cfg->name, strerror(error));
1429 error = iface_set_netdev_config(iface_cfg, netdev);
1434 if (*ofp_portp < 0) {
1435 uint16_t ofp_port = if_cfg->ofport;
1437 error = ofproto_port_add(br->ofproto, netdev, &ofp_port);
1441 *ofp_portp = ofp_port;
1443 VLOG_INFO("bridge %s: added interface %s on port %d",
1444 br->name, iface_cfg->name, *ofp_portp);
1446 VLOG_DBG("bridge %s: interface %s is on port %d",
1447 br->name, iface_cfg->name, *ofp_portp);
1450 if ((port_cfg->vlan_mode && !strcmp(port_cfg->vlan_mode, "splinter"))
1451 || iface_is_internal(iface_cfg, br->cfg)) {
1452 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
1460 netdev_close(netdev);
1464 /* Creates a new iface on 'br' based on 'if_cfg'. The new iface has OpenFlow
1465 * port number 'ofp_port'. If ofp_port is negative, an OpenFlow port is
1466 * automatically allocated for the iface. Takes ownership of and
1467 * deallocates 'if_cfg'.
1469 * Return true if an iface is successfully created, false otherwise. */
1471 iface_create(struct bridge *br, struct if_cfg *if_cfg, int ofp_port)
1473 const struct ovsrec_interface *iface_cfg = if_cfg->cfg;
1474 const struct ovsrec_port *port_cfg = if_cfg->parent;
1476 struct netdev *netdev;
1477 struct iface *iface;
1482 /* Do the bits that can fail up front.
1484 * It's a bit dangerous to call bridge_run_fast() here as ofproto's
1485 * internal datastructures may not be consistent. Eventually, when port
1486 * additions and deletions are cheaper, these calls should be removed. */
1488 ovs_assert(!iface_lookup(br, iface_cfg->name));
1489 error = iface_do_create(br, if_cfg, &ofp_port, &netdev);
1492 iface_set_ofport(iface_cfg, -1);
1493 iface_clear_db_record(iface_cfg);
1498 /* Get or create the port structure. */
1499 port = port_lookup(br, port_cfg->name);
1501 port = port_create(br, port_cfg);
1504 /* Create the iface structure. */
1505 iface = xzalloc(sizeof *iface);
1506 list_push_back(&port->ifaces, &iface->port_elem);
1507 hmap_insert(&br->iface_by_name, &iface->name_node,
1508 hash_string(iface_cfg->name, 0));
1510 iface->name = xstrdup(iface_cfg->name);
1511 iface->ofp_port = -1;
1512 iface->netdev = netdev;
1513 iface->type = iface_get_type(iface_cfg, br->cfg);
1514 iface->cfg = iface_cfg;
1516 iface_set_ofp_port(iface, ofp_port);
1518 /* Populate initial status in database. */
1519 iface_refresh_stats(iface);
1520 iface_refresh_status(iface);
1522 /* Add bond fake iface if necessary. */
1523 if (port_is_bond_fake_iface(port)) {
1524 struct ofproto_port ofproto_port;
1526 if (ofproto_port_query_by_name(br->ofproto, port->name,
1528 struct netdev *netdev;
1531 error = netdev_open(port->name, "internal", &netdev);
1533 uint16_t fake_ofp_port = if_cfg->ofport;
1535 ofproto_port_add(br->ofproto, netdev, &fake_ofp_port);
1536 netdev_close(netdev);
1538 VLOG_WARN("could not open network device %s (%s)",
1539 port->name, strerror(error));
1542 /* Already exists, nothing to do. */
1543 ofproto_port_destroy(&ofproto_port);
1548 hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
1554 /* Set Flow eviction threshold */
1556 bridge_configure_flow_eviction_threshold(struct bridge *br)
1558 const char *threshold_str;
1561 threshold_str = smap_get(&br->cfg->other_config,
1562 "flow-eviction-threshold");
1563 if (threshold_str) {
1564 threshold = strtoul(threshold_str, NULL, 10);
1566 threshold = OFPROTO_FLOW_EVICTION_THRESHOLD_DEFAULT;
1568 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1571 /* Set forward BPDU option. */
1573 bridge_configure_forward_bpdu(struct bridge *br)
1575 ofproto_set_forward_bpdu(br->ofproto,
1576 smap_get_bool(&br->cfg->other_config,
1581 /* Set MAC learning table configuration for 'br'. */
1583 bridge_configure_mac_table(struct bridge *br)
1585 const char *idle_time_str;
1588 const char *mac_table_size_str;
1591 idle_time_str = smap_get(&br->cfg->other_config, "mac-aging-time");
1592 idle_time = (idle_time_str && atoi(idle_time_str)
1593 ? atoi(idle_time_str)
1594 : MAC_ENTRY_DEFAULT_IDLE_TIME);
1596 mac_table_size_str = smap_get(&br->cfg->other_config, "mac-table-size");
1597 mac_table_size = (mac_table_size_str && atoi(mac_table_size_str)
1598 ? atoi(mac_table_size_str)
1601 ofproto_set_mac_table_config(br->ofproto, idle_time, mac_table_size);
1605 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1606 struct iface **hw_addr_iface)
1608 struct hmapx mirror_output_ports;
1611 bool found_addr = false;
1615 *hw_addr_iface = NULL;
1617 /* Did the user request a particular MAC? */
1618 hwaddr = smap_get(&br->cfg->other_config, "hwaddr");
1619 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1620 if (eth_addr_is_multicast(ea)) {
1621 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1622 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1623 } else if (eth_addr_is_zero(ea)) {
1624 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1630 /* Mirror output ports don't participate in picking the local hardware
1631 * address. ofproto can't help us find out whether a given port is a
1632 * mirror output because we haven't configured mirrors yet, so we need to
1633 * accumulate them ourselves. */
1634 hmapx_init(&mirror_output_ports);
1635 for (i = 0; i < br->cfg->n_mirrors; i++) {
1636 struct ovsrec_mirror *m = br->cfg->mirrors[i];
1637 if (m->output_port) {
1638 hmapx_add(&mirror_output_ports, m->output_port);
1642 /* Otherwise choose the minimum non-local MAC address among all of the
1644 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1645 uint8_t iface_ea[ETH_ADDR_LEN];
1646 struct iface *candidate;
1647 struct iface *iface;
1649 /* Mirror output ports don't participate. */
1650 if (hmapx_contains(&mirror_output_ports, port->cfg)) {
1654 /* Choose the MAC address to represent the port. */
1656 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1657 /* Find the interface with this Ethernet address (if any) so that
1658 * we can provide the correct devname to the caller. */
1659 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1660 uint8_t candidate_ea[ETH_ADDR_LEN];
1661 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1662 && eth_addr_equals(iface_ea, candidate_ea)) {
1667 /* Choose the interface whose MAC address will represent the port.
1668 * The Linux kernel bonding code always chooses the MAC address of
1669 * the first slave added to a bond, and the Fedora networking
1670 * scripts always add slaves to a bond in alphabetical order, so
1671 * for compatibility we choose the interface with the name that is
1672 * first in alphabetical order. */
1673 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1674 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1679 /* The local port doesn't count (since we're trying to choose its
1680 * MAC address anyway). */
1681 if (iface->ofp_port == OFPP_LOCAL) {
1686 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1692 /* Compare against our current choice. */
1693 if (!eth_addr_is_multicast(iface_ea) &&
1694 !eth_addr_is_local(iface_ea) &&
1695 !eth_addr_is_reserved(iface_ea) &&
1696 !eth_addr_is_zero(iface_ea) &&
1697 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1699 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1700 *hw_addr_iface = iface;
1706 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1707 *hw_addr_iface = NULL;
1710 hmapx_destroy(&mirror_output_ports);
1713 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1714 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1715 * an interface on 'br', then that interface must be passed in as
1716 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1717 * 'hw_addr_iface' must be passed in as a null pointer. */
1719 bridge_pick_datapath_id(struct bridge *br,
1720 const uint8_t bridge_ea[ETH_ADDR_LEN],
1721 struct iface *hw_addr_iface)
1724 * The procedure for choosing a bridge MAC address will, in the most
1725 * ordinary case, also choose a unique MAC that we can use as a datapath
1726 * ID. In some special cases, though, multiple bridges will end up with
1727 * the same MAC address. This is OK for the bridges, but it will confuse
1728 * the OpenFlow controller, because each datapath needs a unique datapath
1731 * Datapath IDs must be unique. It is also very desirable that they be
1732 * stable from one run to the next, so that policy set on a datapath
1735 const char *datapath_id;
1738 datapath_id = smap_get(&br->cfg->other_config, "datapath-id");
1739 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1743 if (!hw_addr_iface) {
1745 * A purely internal bridge, that is, one that has no non-virtual
1746 * network devices on it at all, is difficult because it has no
1747 * natural unique identifier at all.
1749 * When the host is a XenServer, we handle this case by hashing the
1750 * host's UUID with the name of the bridge. Names of bridges are
1751 * persistent across XenServer reboots, although they can be reused if
1752 * an internal network is destroyed and then a new one is later
1753 * created, so this is fairly effective.
1755 * When the host is not a XenServer, we punt by using a random MAC
1756 * address on each run.
1758 const char *host_uuid = xenserver_get_host_uuid();
1760 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1761 dpid = dpid_from_hash(combined, strlen(combined));
1767 return eth_addr_to_uint64(bridge_ea);
1771 dpid_from_hash(const void *data, size_t n)
1773 uint8_t hash[SHA1_DIGEST_SIZE];
1775 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1776 sha1_bytes(data, n, hash);
1777 eth_addr_mark_random(hash);
1778 return eth_addr_to_uint64(hash);
1782 iface_refresh_status(struct iface *iface)
1786 enum netdev_features current;
1790 uint8_t mac[ETH_ADDR_LEN];
1793 if (iface_is_synthetic(iface)) {
1799 if (!netdev_get_status(iface->netdev, &smap)) {
1800 ovsrec_interface_set_status(iface->cfg, &smap);
1802 ovsrec_interface_set_status(iface->cfg, NULL);
1805 smap_destroy(&smap);
1807 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1808 bps = !error ? netdev_features_to_bps(current, 0) : 0;
1810 ovsrec_interface_set_duplex(iface->cfg,
1811 netdev_features_is_full_duplex(current)
1813 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1815 ovsrec_interface_set_duplex(iface->cfg, NULL);
1816 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1819 error = netdev_get_mtu(iface->netdev, &mtu);
1822 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1824 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1827 error = netdev_get_etheraddr(iface->netdev, mac);
1829 char mac_string[32];
1831 sprintf(mac_string, ETH_ADDR_FMT, ETH_ADDR_ARGS(mac));
1832 ovsrec_interface_set_mac_in_use(iface->cfg, mac_string);
1834 ovsrec_interface_set_mac_in_use(iface->cfg, NULL);
1838 /* Writes 'iface''s CFM statistics to the database. 'iface' must not be
1841 iface_refresh_cfm_stats(struct iface *iface)
1843 const struct ovsrec_interface *cfg = iface->cfg;
1844 struct ofproto_cfm_status status;
1846 if (!ofproto_port_get_cfm_status(iface->port->bridge->ofproto,
1847 iface->ofp_port, &status)) {
1848 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1849 ovsrec_interface_set_cfm_fault_status(cfg, NULL, 0);
1850 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
1851 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1852 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1854 const char *reasons[CFM_FAULT_N_REASONS];
1855 int64_t cfm_health = status.health;
1856 bool faulted = status.faults != 0;
1859 ovsrec_interface_set_cfm_fault(cfg, &faulted, 1);
1862 for (i = 0; i < CFM_FAULT_N_REASONS; i++) {
1863 int reason = 1 << i;
1864 if (status.faults & reason) {
1865 reasons[j++] = cfm_fault_reason_to_str(reason);
1868 ovsrec_interface_set_cfm_fault_status(cfg, (char **) reasons, j);
1870 if (status.remote_opstate >= 0) {
1871 const char *remote_opstate = status.remote_opstate ? "up" : "down";
1872 ovsrec_interface_set_cfm_remote_opstate(cfg, remote_opstate);
1874 ovsrec_interface_set_cfm_remote_opstate(cfg, NULL);
1877 ovsrec_interface_set_cfm_remote_mpids(cfg,
1878 (const int64_t *)status.rmps,
1880 if (cfm_health >= 0) {
1881 ovsrec_interface_set_cfm_health(cfg, &cfm_health, 1);
1883 ovsrec_interface_set_cfm_health(cfg, NULL, 0);
1889 iface_refresh_stats(struct iface *iface)
1891 #define IFACE_STATS \
1892 IFACE_STAT(rx_packets, "rx_packets") \
1893 IFACE_STAT(tx_packets, "tx_packets") \
1894 IFACE_STAT(rx_bytes, "rx_bytes") \
1895 IFACE_STAT(tx_bytes, "tx_bytes") \
1896 IFACE_STAT(rx_dropped, "rx_dropped") \
1897 IFACE_STAT(tx_dropped, "tx_dropped") \
1898 IFACE_STAT(rx_errors, "rx_errors") \
1899 IFACE_STAT(tx_errors, "tx_errors") \
1900 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1901 IFACE_STAT(rx_over_errors, "rx_over_err") \
1902 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1903 IFACE_STAT(collisions, "collisions")
1905 #define IFACE_STAT(MEMBER, NAME) + 1
1906 enum { N_IFACE_STATS = IFACE_STATS };
1908 int64_t values[N_IFACE_STATS];
1909 char *keys[N_IFACE_STATS];
1912 struct netdev_stats stats;
1914 if (iface_is_synthetic(iface)) {
1918 /* Intentionally ignore return value, since errors will set 'stats' to
1919 * all-1s, and we will deal with that correctly below. */
1920 netdev_get_stats(iface->netdev, &stats);
1922 /* Copy statistics into keys[] and values[]. */
1924 #define IFACE_STAT(MEMBER, NAME) \
1925 if (stats.MEMBER != UINT64_MAX) { \
1927 values[n] = stats.MEMBER; \
1932 ovs_assert(n <= N_IFACE_STATS);
1934 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
1939 br_refresh_stp_status(struct bridge *br)
1941 struct smap smap = SMAP_INITIALIZER(&smap);
1942 struct ofproto *ofproto = br->ofproto;
1943 struct ofproto_stp_status status;
1945 if (ofproto_get_stp_status(ofproto, &status)) {
1949 if (!status.enabled) {
1950 ovsrec_bridge_set_status(br->cfg, NULL);
1954 smap_add_format(&smap, "stp_bridge_id", STP_ID_FMT,
1955 STP_ID_ARGS(status.bridge_id));
1956 smap_add_format(&smap, "stp_designated_root", STP_ID_FMT,
1957 STP_ID_ARGS(status.designated_root));
1958 smap_add_format(&smap, "stp_root_path_cost", "%d", status.root_path_cost);
1960 ovsrec_bridge_set_status(br->cfg, &smap);
1961 smap_destroy(&smap);
1965 port_refresh_stp_status(struct port *port)
1967 struct ofproto *ofproto = port->bridge->ofproto;
1968 struct iface *iface;
1969 struct ofproto_port_stp_status status;
1971 int64_t int_values[3];
1974 if (port_is_synthetic(port)) {
1978 /* STP doesn't currently support bonds. */
1979 if (!list_is_singleton(&port->ifaces)) {
1980 ovsrec_port_set_status(port->cfg, NULL);
1984 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1986 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1990 if (!status.enabled) {
1991 ovsrec_port_set_status(port->cfg, NULL);
1992 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1996 /* Set Status column. */
1998 smap_add_format(&smap, "stp_port_id", STP_PORT_ID_FMT, status.port_id);
1999 smap_add(&smap, "stp_state", stp_state_name(status.state));
2000 smap_add_format(&smap, "stp_sec_in_state", "%u", status.sec_in_state);
2001 smap_add(&smap, "stp_role", stp_role_name(status.role));
2002 ovsrec_port_set_status(port->cfg, &smap);
2003 smap_destroy(&smap);
2005 /* Set Statistics column. */
2006 keys[0] = "stp_tx_count";
2007 int_values[0] = status.tx_count;
2008 keys[1] = "stp_rx_count";
2009 int_values[1] = status.rx_count;
2010 keys[2] = "stp_error_count";
2011 int_values[2] = status.error_count;
2013 ovsrec_port_set_statistics(port->cfg, keys, int_values,
2014 ARRAY_SIZE(int_values));
2018 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
2020 return smap_get_bool(&cfg->other_config, "enable-statistics", false);
2024 reconfigure_system_stats(const struct ovsrec_open_vswitch *cfg)
2026 bool enable = enable_system_stats(cfg);
2028 system_stats_enable(enable);
2030 ovsrec_open_vswitch_set_statistics(cfg, NULL);
2035 run_system_stats(void)
2037 const struct ovsrec_open_vswitch *cfg = ovsrec_open_vswitch_first(idl);
2040 stats = system_stats_run();
2042 struct ovsdb_idl_txn *txn;
2043 struct ovsdb_datum datum;
2045 txn = ovsdb_idl_txn_create(idl);
2046 ovsdb_datum_from_smap(&datum, stats);
2047 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
2049 ovsdb_idl_txn_commit(txn);
2050 ovsdb_idl_txn_destroy(txn);
2056 static inline const char *
2057 ofp12_controller_role_to_str(enum ofp12_controller_role role)
2060 case OFPCR12_ROLE_EQUAL:
2062 case OFPCR12_ROLE_MASTER:
2064 case OFPCR12_ROLE_SLAVE:
2066 case OFPCR12_ROLE_NOCHANGE:
2068 return "*** INVALID ROLE ***";
2073 refresh_controller_status(void)
2077 const struct ovsrec_controller *cfg;
2081 /* Accumulate status for controllers on all bridges. */
2082 HMAP_FOR_EACH (br, node, &all_bridges) {
2083 ofproto_get_ofproto_controller_info(br->ofproto, &info);
2086 /* Update each controller in the database with current status. */
2087 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
2088 struct ofproto_controller_info *cinfo =
2089 shash_find_data(&info, cfg->target);
2092 struct smap smap = SMAP_INITIALIZER(&smap);
2093 const char **values = cinfo->pairs.values;
2094 const char **keys = cinfo->pairs.keys;
2097 for (i = 0; i < cinfo->pairs.n; i++) {
2098 smap_add(&smap, keys[i], values[i]);
2101 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
2102 ovsrec_controller_set_role(cfg, ofp12_controller_role_to_str(
2104 ovsrec_controller_set_status(cfg, &smap);
2105 smap_destroy(&smap);
2107 ovsrec_controller_set_is_connected(cfg, false);
2108 ovsrec_controller_set_role(cfg, NULL);
2109 ovsrec_controller_set_status(cfg, NULL);
2113 ofproto_free_ofproto_controller_info(&info);
2118 * Some information in the database must be kept as up-to-date as possible to
2119 * allow controllers to respond rapidly to network outages. We call these
2120 * statistics "instant" stats.
2122 * We wish to update these statistics every INSTANT_INTERVAL_MSEC milliseconds,
2123 * assuming that they've changed. The only means we have to determine whether
2124 * they have changed are:
2126 * - Try to commit changes to the database. If nothing changed, then
2127 * ovsdb_idl_txn_commit() returns TXN_UNCHANGED, otherwise some other
2130 * - instant_stats_run() is called late in the run loop, after anything that
2131 * might change any of the instant stats.
2133 * We use these two facts together to avoid waking the process up every
2134 * INSTANT_INTERVAL_MSEC whether there is any change or not.
2137 /* Minimum interval between writing updates to the instant stats to the
2139 #define INSTANT_INTERVAL_MSEC 100
2141 /* Current instant stats database transaction, NULL if there is no ongoing
2143 static struct ovsdb_idl_txn *instant_txn;
2145 /* Next time (in msec on monotonic clock) at which we will update the instant
2147 static long long int instant_next_txn = LLONG_MIN;
2149 /* True if the run loop has run since we last saw that the instant stats were
2150 * unchanged, that is, this is true if we need to wake up at 'instant_next_txn'
2151 * to refresh the instant stats. */
2152 static bool instant_stats_could_have_changed;
2155 instant_stats_run(void)
2157 enum ovsdb_idl_txn_status status;
2159 instant_stats_could_have_changed = true;
2164 if (time_msec() < instant_next_txn) {
2167 instant_next_txn = time_msec() + INSTANT_INTERVAL_MSEC;
2169 instant_txn = ovsdb_idl_txn_create(idl);
2170 HMAP_FOR_EACH (br, node, &all_bridges) {
2171 struct iface *iface;
2174 br_refresh_stp_status(br);
2176 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2177 port_refresh_stp_status(port);
2180 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
2181 enum netdev_flags flags;
2183 const char *link_state;
2184 int64_t link_resets;
2187 if (iface_is_synthetic(iface)) {
2191 current = ofproto_port_is_lacp_current(br->ofproto,
2195 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
2197 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
2200 error = netdev_get_flags(iface->netdev, &flags);
2202 const char *state = flags & NETDEV_UP ? "up" : "down";
2203 ovsrec_interface_set_admin_state(iface->cfg, state);
2205 ovsrec_interface_set_admin_state(iface->cfg, NULL);
2208 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
2209 ovsrec_interface_set_link_state(iface->cfg, link_state);
2211 link_resets = netdev_get_carrier_resets(iface->netdev);
2212 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
2214 iface_refresh_cfm_stats(iface);
2217 if (!ofproto_port_get_bfd_status(br->ofproto, iface->ofp_port,
2219 ovsrec_interface_set_bfd_status(iface->cfg, &smap);
2220 smap_destroy(&smap);
2226 status = ovsdb_idl_txn_commit(instant_txn);
2227 if (status != TXN_INCOMPLETE) {
2228 ovsdb_idl_txn_destroy(instant_txn);
2231 if (status == TXN_UNCHANGED) {
2232 instant_stats_could_have_changed = false;
2237 instant_stats_wait(void)
2240 ovsdb_idl_txn_wait(instant_txn);
2241 } else if (instant_stats_could_have_changed) {
2242 poll_timer_wait_until(instant_next_txn);
2246 /* Performs periodic activity required by bridges that needs to be done with
2247 * the least possible latency.
2249 * It makes sense to call this function a couple of times per poll loop, to
2250 * provide a significant performance boost on some benchmarks with ofprotos
2251 * that use the ofproto-dpif implementation. */
2253 bridge_run_fast(void)
2260 ofproto_enumerate_types(&types);
2261 SSET_FOR_EACH (type, &types) {
2262 ofproto_type_run_fast(type);
2264 sset_destroy(&types);
2266 HMAP_FOR_EACH (br, node, &all_bridges) {
2267 ofproto_run_fast(br->ofproto);
2274 static struct ovsrec_open_vswitch null_cfg;
2275 const struct ovsrec_open_vswitch *cfg;
2276 struct ovsdb_idl_txn *reconf_txn = NULL;
2280 bool vlan_splinters_changed;
2283 ovsrec_open_vswitch_init(&null_cfg);
2285 /* (Re)configure if necessary. */
2286 if (!reconfiguring) {
2289 if (ovsdb_idl_is_lock_contended(idl)) {
2290 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2291 struct bridge *br, *next_br;
2293 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
2294 "disabling this process (pid %ld) until it goes away",
2295 (long int) getpid());
2297 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
2300 /* Since we will not be running system_stats_run() in this process
2301 * with the current situation of multiple ovs-vswitchd daemons,
2302 * disable system stats collection. */
2303 system_stats_enable(false);
2305 } else if (!ovsdb_idl_has_lock(idl)) {
2309 cfg = ovsrec_open_vswitch_first(idl);
2311 /* Initialize the ofproto library. This only needs to run once, but
2312 * it must be done after the configuration is set. If the
2313 * initialization has already occurred, bridge_init_ofproto()
2314 * returns immediately. */
2315 bridge_init_ofproto(cfg);
2317 /* Let each datapath type do the work that it needs to do. */
2319 ofproto_enumerate_types(&types);
2320 SSET_FOR_EACH (type, &types) {
2321 ofproto_type_run(type);
2323 sset_destroy(&types);
2325 /* Let each bridge do the work that it needs to do. */
2326 HMAP_FOR_EACH (br, node, &all_bridges) {
2327 ofproto_run(br->ofproto);
2330 /* Re-configure SSL. We do this on every trip through the main loop,
2331 * instead of just when the database changes, because the contents of the
2332 * key and certificate files can change without the database changing.
2334 * We do this before bridge_reconfigure() because that function might
2335 * initiate SSL connections and thus requires SSL to be configured. */
2336 if (cfg && cfg->ssl) {
2337 const struct ovsrec_ssl *ssl = cfg->ssl;
2339 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
2340 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
2343 if (!reconfiguring) {
2344 /* If VLAN splinters are in use, then we need to reconfigure if VLAN
2345 * usage has changed. */
2346 vlan_splinters_changed = false;
2347 if (vlan_splinters_enabled_anywhere) {
2348 HMAP_FOR_EACH (br, node, &all_bridges) {
2349 if (ofproto_has_vlan_usage_changed(br->ofproto)) {
2350 vlan_splinters_changed = true;
2356 if (ovsdb_idl_get_seqno(idl) != idl_seqno || vlan_splinters_changed) {
2357 idl_seqno = ovsdb_idl_get_seqno(idl);
2359 reconf_txn = ovsdb_idl_txn_create(idl);
2360 bridge_reconfigure(cfg);
2362 /* We still need to reconfigure to avoid dangling pointers to
2363 * now-destroyed ovsrec structures inside bridge data. */
2364 bridge_reconfigure(&null_cfg);
2369 if (reconfiguring) {
2371 reconf_txn = ovsdb_idl_txn_create(idl);
2374 if (bridge_reconfigure_continue(cfg ? cfg : &null_cfg)) {
2375 reconfiguring = false;
2378 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
2381 /* If we are completing our initial configuration for this run
2382 * of ovs-vswitchd, then keep the transaction around to monitor
2383 * it for completion. */
2384 if (!initial_config_done) {
2385 initial_config_done = true;
2386 daemonize_txn = reconf_txn;
2393 ovsdb_idl_txn_commit(reconf_txn);
2394 ovsdb_idl_txn_destroy(reconf_txn);
2398 if (daemonize_txn) {
2399 enum ovsdb_idl_txn_status status = ovsdb_idl_txn_commit(daemonize_txn);
2400 if (status != TXN_INCOMPLETE) {
2401 ovsdb_idl_txn_destroy(daemonize_txn);
2402 daemonize_txn = NULL;
2404 /* ovs-vswitchd has completed initialization, so allow the
2405 * process that forked us to exit successfully. */
2406 daemonize_complete();
2408 VLOG_INFO_ONCE("%s (Open vSwitch) %s", program_name, VERSION);
2412 /* Refresh interface and mirror stats if necessary. */
2413 if (time_msec() >= iface_stats_timer) {
2415 struct ovsdb_idl_txn *txn;
2417 txn = ovsdb_idl_txn_create(idl);
2418 HMAP_FOR_EACH (br, node, &all_bridges) {
2422 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
2423 struct iface *iface;
2425 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2426 iface_refresh_stats(iface);
2427 iface_refresh_status(iface);
2431 HMAP_FOR_EACH (m, hmap_node, &br->mirrors) {
2432 mirror_refresh_stats(m);
2436 refresh_controller_status();
2437 ovsdb_idl_txn_commit(txn);
2438 ovsdb_idl_txn_destroy(txn); /* XXX */
2441 iface_stats_timer = time_msec() + IFACE_STATS_INTERVAL;
2445 instant_stats_run();
2454 ovsdb_idl_wait(idl);
2455 if (daemonize_txn) {
2456 ovsdb_idl_txn_wait(daemonize_txn);
2459 if (reconfiguring) {
2460 poll_immediate_wake();
2464 ofproto_enumerate_types(&types);
2465 SSET_FOR_EACH (type, &types) {
2466 ofproto_type_wait(type);
2468 sset_destroy(&types);
2470 if (!hmap_is_empty(&all_bridges)) {
2473 HMAP_FOR_EACH (br, node, &all_bridges) {
2474 ofproto_wait(br->ofproto);
2476 poll_timer_wait_until(iface_stats_timer);
2479 system_stats_wait();
2480 instant_stats_wait();
2483 /* Adds some memory usage statistics for bridges into 'usage', for use with
2484 * memory_report(). */
2486 bridge_get_memory_usage(struct simap *usage)
2490 HMAP_FOR_EACH (br, node, &all_bridges) {
2491 ofproto_get_memory_usage(br->ofproto, usage);
2495 /* QoS unixctl user interface functions. */
2497 struct qos_unixctl_show_cbdata {
2499 struct iface *iface;
2503 qos_unixctl_show_cb(unsigned int queue_id,
2504 const struct smap *details,
2507 struct qos_unixctl_show_cbdata *data = aux;
2508 struct ds *ds = data->ds;
2509 struct iface *iface = data->iface;
2510 struct netdev_queue_stats stats;
2511 struct smap_node *node;
2514 ds_put_cstr(ds, "\n");
2516 ds_put_format(ds, "Queue %u:\n", queue_id);
2518 ds_put_cstr(ds, "Default:\n");
2521 SMAP_FOR_EACH (node, details) {
2522 ds_put_format(ds, "\t%s: %s\n", node->key, node->value);
2525 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
2527 if (stats.tx_packets != UINT64_MAX) {
2528 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
2531 if (stats.tx_bytes != UINT64_MAX) {
2532 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
2535 if (stats.tx_errors != UINT64_MAX) {
2536 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
2539 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
2540 queue_id, strerror(error));
2545 qos_unixctl_show(struct unixctl_conn *conn, int argc OVS_UNUSED,
2546 const char *argv[], void *aux OVS_UNUSED)
2548 struct ds ds = DS_EMPTY_INITIALIZER;
2549 struct smap smap = SMAP_INITIALIZER(&smap);
2550 struct iface *iface;
2552 struct smap_node *node;
2553 struct qos_unixctl_show_cbdata data;
2556 iface = iface_find(argv[1]);
2558 unixctl_command_reply_error(conn, "no such interface");
2562 netdev_get_qos(iface->netdev, &type, &smap);
2564 if (*type != '\0') {
2565 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
2567 SMAP_FOR_EACH (node, &smap) {
2568 ds_put_format(&ds, "%s: %s\n", node->key, node->value);
2573 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
2576 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
2578 unixctl_command_reply(conn, ds_cstr(&ds));
2580 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
2581 unixctl_command_reply_error(conn, ds_cstr(&ds));
2584 smap_destroy(&smap);
2588 /* Bridge reconfiguration functions. */
2590 bridge_create(const struct ovsrec_bridge *br_cfg)
2594 ovs_assert(!bridge_lookup(br_cfg->name));
2595 br = xzalloc(sizeof *br);
2597 br->name = xstrdup(br_cfg->name);
2598 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2601 /* Derive the default Ethernet address from the bridge's UUID. This should
2602 * be unique and it will be stable between ovs-vswitchd runs. */
2603 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2604 eth_addr_mark_random(br->default_ea);
2606 hmap_init(&br->ports);
2607 hmap_init(&br->ifaces);
2608 hmap_init(&br->iface_by_name);
2609 hmap_init(&br->mirrors);
2611 hmap_init(&br->if_cfg_todo);
2612 list_init(&br->ofpp_garbage);
2614 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2618 bridge_destroy(struct bridge *br)
2621 struct mirror *mirror, *next_mirror;
2622 struct port *port, *next_port;
2623 struct if_cfg *if_cfg, *next_if_cfg;
2624 struct ofpp_garbage *garbage, *next_garbage;
2626 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2629 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2630 mirror_destroy(mirror);
2632 HMAP_FOR_EACH_SAFE (if_cfg, next_if_cfg, hmap_node, &br->if_cfg_todo) {
2633 hmap_remove(&br->if_cfg_todo, &if_cfg->hmap_node);
2636 LIST_FOR_EACH_SAFE (garbage, next_garbage, list_node,
2637 &br->ofpp_garbage) {
2638 list_remove(&garbage->list_node);
2642 hmap_remove(&all_bridges, &br->node);
2643 ofproto_destroy(br->ofproto);
2644 hmap_destroy(&br->ifaces);
2645 hmap_destroy(&br->ports);
2646 hmap_destroy(&br->iface_by_name);
2647 hmap_destroy(&br->mirrors);
2648 hmap_destroy(&br->if_cfg_todo);
2655 static struct bridge *
2656 bridge_lookup(const char *name)
2660 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2661 if (!strcmp(br->name, name)) {
2668 /* Handle requests for a listing of all flows known by the OpenFlow
2669 * stack, including those normally hidden. */
2671 bridge_unixctl_dump_flows(struct unixctl_conn *conn, int argc OVS_UNUSED,
2672 const char *argv[], void *aux OVS_UNUSED)
2677 br = bridge_lookup(argv[1]);
2679 unixctl_command_reply_error(conn, "Unknown bridge");
2684 ofproto_get_all_flows(br->ofproto, &results);
2686 unixctl_command_reply(conn, ds_cstr(&results));
2687 ds_destroy(&results);
2690 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2691 * connections and reconnect. If BRIDGE is not specified, then all bridges
2692 * drop their controller connections and reconnect. */
2694 bridge_unixctl_reconnect(struct unixctl_conn *conn, int argc,
2695 const char *argv[], void *aux OVS_UNUSED)
2699 br = bridge_lookup(argv[1]);
2701 unixctl_command_reply_error(conn, "Unknown bridge");
2704 ofproto_reconnect_controllers(br->ofproto);
2706 HMAP_FOR_EACH (br, node, &all_bridges) {
2707 ofproto_reconnect_controllers(br->ofproto);
2710 unixctl_command_reply(conn, NULL);
2714 bridge_get_controllers(const struct bridge *br,
2715 struct ovsrec_controller ***controllersp)
2717 struct ovsrec_controller **controllers;
2718 size_t n_controllers;
2720 controllers = br->cfg->controller;
2721 n_controllers = br->cfg->n_controller;
2723 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2729 *controllersp = controllers;
2731 return n_controllers;
2735 bridge_queue_if_cfg(struct bridge *br,
2736 const struct ovsrec_interface *cfg,
2737 const struct ovsrec_port *parent)
2739 struct if_cfg *if_cfg = xmalloc(sizeof *if_cfg);
2742 if_cfg->parent = parent;
2743 if_cfg->ofport = iface_pick_ofport(cfg);
2744 hmap_insert(&br->if_cfg_todo, &if_cfg->hmap_node,
2745 hash_string(if_cfg->cfg->name, 0));
2748 /* Deletes "struct port"s and "struct iface"s under 'br' which aren't
2749 * consistent with 'br->cfg'. Updates 'br->if_cfg_queue' with interfaces which
2750 * 'br' needs to complete its configuration. */
2752 bridge_add_del_ports(struct bridge *br,
2753 const unsigned long int *splinter_vlans)
2755 struct shash_node *port_node;
2756 struct port *port, *next;
2757 struct shash new_ports;
2760 ovs_assert(hmap_is_empty(&br->if_cfg_todo));
2762 /* Collect new ports. */
2763 shash_init(&new_ports);
2764 for (i = 0; i < br->cfg->n_ports; i++) {
2765 const char *name = br->cfg->ports[i]->name;
2766 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2767 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2771 if (bridge_get_controllers(br, NULL)
2772 && !shash_find(&new_ports, br->name)) {
2773 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2774 br->name, br->name);
2776 ovsrec_interface_init(&br->synth_local_iface);
2777 ovsrec_port_init(&br->synth_local_port);
2779 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2780 br->synth_local_port.n_interfaces = 1;
2781 br->synth_local_port.name = br->name;
2783 br->synth_local_iface.name = br->name;
2784 br->synth_local_iface.type = "internal";
2786 br->synth_local_ifacep = &br->synth_local_iface;
2788 shash_add(&new_ports, br->name, &br->synth_local_port);
2791 if (splinter_vlans) {
2792 add_vlan_splinter_ports(br, splinter_vlans, &new_ports);
2795 /* Get rid of deleted ports.
2796 * Get rid of deleted interfaces on ports that still exist. */
2797 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2798 port->cfg = shash_find_data(&new_ports, port->name);
2802 port_del_ifaces(port);
2806 /* Update iface->cfg and iface->type in interfaces that still exist.
2807 * Add new interfaces to creation queue. */
2808 SHASH_FOR_EACH (port_node, &new_ports) {
2809 const struct ovsrec_port *port = port_node->data;
2812 for (i = 0; i < port->n_interfaces; i++) {
2813 const struct ovsrec_interface *cfg = port->interfaces[i];
2814 struct iface *iface = iface_lookup(br, cfg->name);
2815 const char *type = iface_get_type(cfg, br->cfg);
2820 } else if (!strcmp(type, "null")) {
2821 VLOG_WARN_ONCE("%s: The null interface type is deprecated and"
2822 " may be removed in February 2013. Please email"
2823 " dev@openvswitch.org with concerns.",
2826 bridge_queue_if_cfg(br, cfg, port);
2831 shash_destroy(&new_ports);
2834 /* Initializes 'oc' appropriately as a management service controller for
2837 * The caller must free oc->target when it is no longer needed. */
2839 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2840 struct ofproto_controller *oc)
2842 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2843 oc->max_backoff = 0;
2844 oc->probe_interval = 60;
2845 oc->band = OFPROTO_OUT_OF_BAND;
2847 oc->burst_limit = 0;
2848 oc->enable_async_msgs = true;
2851 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2853 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2854 struct ofproto_controller *oc)
2858 oc->target = c->target;
2859 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2860 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2861 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2862 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2863 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2864 oc->burst_limit = (c->controller_burst_limit
2865 ? *c->controller_burst_limit : 0);
2866 oc->enable_async_msgs = (!c->enable_async_messages
2867 || *c->enable_async_messages);
2868 dscp = smap_get_int(&c->other_config, "dscp", DSCP_DEFAULT);
2869 if (dscp < 0 || dscp > 63) {
2870 dscp = DSCP_DEFAULT;
2875 /* Configures the IP stack for 'br''s local interface properly according to the
2876 * configuration in 'c'. */
2878 bridge_configure_local_iface_netdev(struct bridge *br,
2879 struct ovsrec_controller *c)
2881 struct netdev *netdev;
2882 struct in_addr mask, gateway;
2884 struct iface *local_iface;
2887 /* If there's no local interface or no IP address, give up. */
2888 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2889 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2893 /* Bring up the local interface. */
2894 netdev = local_iface->netdev;
2895 netdev_turn_flags_on(netdev, NETDEV_UP, NULL);
2897 /* Configure the IP address and netmask. */
2898 if (!c->local_netmask
2899 || !inet_aton(c->local_netmask, &mask)
2901 mask.s_addr = guess_netmask(ip.s_addr);
2903 if (!netdev_set_in4(netdev, ip, mask)) {
2904 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2905 br->name, IP_ARGS(ip.s_addr), IP_ARGS(mask.s_addr));
2908 /* Configure the default gateway. */
2909 if (c->local_gateway
2910 && inet_aton(c->local_gateway, &gateway)
2911 && gateway.s_addr) {
2912 if (!netdev_add_router(netdev, gateway)) {
2913 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2914 br->name, IP_ARGS(gateway.s_addr));
2919 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2920 * in either string are treated as equal to any number of slashes in the other,
2921 * e.g. "x///y" is equal to "x/y".
2923 * Also, if 'b_stoplen' bytes from 'b' are found to be equal to corresponding
2924 * bytes from 'a', the function considers this success. Specify 'b_stoplen' as
2925 * SIZE_MAX to compare all of 'a' to all of 'b' rather than just a prefix of
2926 * 'b' against a prefix of 'a'.
2929 equal_pathnames(const char *a, const char *b, size_t b_stoplen)
2931 const char *b_start = b;
2933 if (b - b_start >= b_stoplen) {
2935 } else if (*a != *b) {
2937 } else if (*a == '/') {
2938 a += strspn(a, "/");
2939 b += strspn(b, "/");
2940 } else if (*a == '\0') {
2950 bridge_configure_remotes(struct bridge *br,
2951 const struct sockaddr_in *managers, size_t n_managers)
2953 bool disable_in_band;
2955 struct ovsrec_controller **controllers;
2956 size_t n_controllers;
2958 enum ofproto_fail_mode fail_mode;
2960 struct ofproto_controller *ocs;
2964 /* Check if we should disable in-band control on this bridge. */
2965 disable_in_band = smap_get_bool(&br->cfg->other_config, "disable-in-band",
2968 /* Set OpenFlow queue ID for in-band control. */
2969 ofproto_set_in_band_queue(br->ofproto,
2970 smap_get_int(&br->cfg->other_config,
2971 "in-band-queue", -1));
2973 if (disable_in_band) {
2974 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2976 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2979 n_controllers = bridge_get_controllers(br, &controllers);
2981 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2984 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2985 for (i = 0; i < n_controllers; i++) {
2986 struct ovsrec_controller *c = controllers[i];
2988 if (!strncmp(c->target, "punix:", 6)
2989 || !strncmp(c->target, "unix:", 5)) {
2990 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2993 if (!strncmp(c->target, "unix:", 5)) {
2994 /* Connect to a listening socket */
2995 whitelist = xasprintf("unix:%s/", ovs_rundir());
2996 if (strchr(c->target, '/') &&
2997 !equal_pathnames(c->target, whitelist,
2998 strlen(whitelist))) {
2999 /* Absolute path specified, but not in ovs_rundir */
3000 VLOG_ERR_RL(&rl, "bridge %s: Not connecting to socket "
3001 "controller \"%s\" due to possibility for "
3002 "remote exploit. Instead, specify socket "
3003 "in whitelisted \"%s\" or connect to "
3004 "\"unix:%s/%s.mgmt\" (which is always "
3005 "available without special configuration).",
3006 br->name, c->target, whitelist,
3007 ovs_rundir(), br->name);
3012 whitelist = xasprintf("punix:%s/%s.controller",
3013 ovs_rundir(), br->name);
3014 if (!equal_pathnames(c->target, whitelist, SIZE_MAX)) {
3015 /* Prevent remote ovsdb-server users from accessing
3016 * arbitrary Unix domain sockets and overwriting arbitrary
3018 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
3019 "controller \"%s\" due to possibility of "
3020 "overwriting local files. Instead, specify "
3021 "whitelisted \"%s\" or connect to "
3022 "\"unix:%s/%s.mgmt\" (which is always "
3023 "available without special configuration).",
3024 br->name, c->target, whitelist,
3025 ovs_rundir(), br->name);
3034 bridge_configure_local_iface_netdev(br, c);
3035 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
3036 if (disable_in_band) {
3037 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
3042 ofproto_set_controllers(br->ofproto, ocs, n_ocs,
3043 bridge_get_allowed_versions(br));
3044 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
3047 /* Set the fail-mode. */
3048 fail_mode = !br->cfg->fail_mode
3049 || !strcmp(br->cfg->fail_mode, "standalone")
3050 ? OFPROTO_FAIL_STANDALONE
3051 : OFPROTO_FAIL_SECURE;
3052 ofproto_set_fail_mode(br->ofproto, fail_mode);
3054 /* Configure OpenFlow controller connection snooping. */
3055 if (!ofproto_has_snoops(br->ofproto)) {
3059 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
3060 ovs_rundir(), br->name));
3061 ofproto_set_snoops(br->ofproto, &snoops);
3062 sset_destroy(&snoops);
3067 bridge_configure_tables(struct bridge *br)
3069 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
3073 n_tables = ofproto_get_n_tables(br->ofproto);
3075 for (i = 0; i < n_tables; i++) {
3076 struct ofproto_table_settings s;
3079 s.max_flows = UINT_MAX;
3083 if (j < br->cfg->n_flow_tables && i == br->cfg->key_flow_tables[j]) {
3084 struct ovsrec_flow_table *cfg = br->cfg->value_flow_tables[j++];
3087 if (cfg->n_flow_limit && *cfg->flow_limit < UINT_MAX) {
3088 s.max_flows = *cfg->flow_limit;
3090 if (cfg->overflow_policy
3091 && !strcmp(cfg->overflow_policy, "evict")) {
3094 s.groups = xmalloc(cfg->n_groups * sizeof *s.groups);
3095 for (k = 0; k < cfg->n_groups; k++) {
3096 const char *string = cfg->groups[k];
3099 msg = mf_parse_subfield__(&s.groups[k], &string);
3101 VLOG_WARN_RL(&rl, "bridge %s table %d: error parsing "
3102 "'groups' (%s)", br->name, i, msg);
3104 } else if (*string) {
3105 VLOG_WARN_RL(&rl, "bridge %s table %d: 'groups' "
3106 "element '%s' contains trailing garbage",
3107 br->name, i, cfg->groups[k]);
3115 ofproto_configure_table(br->ofproto, i, &s);
3119 for (; j < br->cfg->n_flow_tables; j++) {
3120 VLOG_WARN_RL(&rl, "bridge %s: ignoring configuration for flow table "
3121 "%"PRId64" not supported by this datapath", br->name,
3122 br->cfg->key_flow_tables[j]);
3127 bridge_configure_dp_desc(struct bridge *br)
3129 ofproto_set_dp_desc(br->ofproto,
3130 smap_get(&br->cfg->other_config, "dp-desc"));
3133 /* Port functions. */
3135 static struct port *
3136 port_create(struct bridge *br, const struct ovsrec_port *cfg)
3140 port = xzalloc(sizeof *port);
3142 port->name = xstrdup(cfg->name);
3144 list_init(&port->ifaces);
3146 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
3150 /* Deletes interfaces from 'port' that are no longer configured for it. */
3152 port_del_ifaces(struct port *port)
3154 struct iface *iface, *next;
3155 struct sset new_ifaces;
3158 /* Collect list of new interfaces. */
3159 sset_init(&new_ifaces);
3160 for (i = 0; i < port->cfg->n_interfaces; i++) {
3161 const char *name = port->cfg->interfaces[i]->name;
3162 const char *type = port->cfg->interfaces[i]->type;
3163 if (strcmp(type, "null")) {
3164 sset_add(&new_ifaces, name);
3168 /* Get rid of deleted interfaces. */
3169 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3170 if (!sset_contains(&new_ifaces, iface->name)) {
3171 iface_destroy(iface);
3175 sset_destroy(&new_ifaces);
3179 port_destroy(struct port *port)
3182 struct bridge *br = port->bridge;
3183 struct iface *iface, *next;
3186 ofproto_bundle_unregister(br->ofproto, port);
3189 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
3190 iface_destroy(iface);
3193 hmap_remove(&br->ports, &port->hmap_node);
3199 static struct port *
3200 port_lookup(const struct bridge *br, const char *name)
3204 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
3206 if (!strcmp(port->name, name)) {
3214 enable_lacp(struct port *port, bool *activep)
3216 if (!port->cfg->lacp) {
3217 /* XXX when LACP implementation has been sufficiently tested, enable by
3218 * default and make active on bonded ports. */
3220 } else if (!strcmp(port->cfg->lacp, "off")) {
3222 } else if (!strcmp(port->cfg->lacp, "active")) {
3225 } else if (!strcmp(port->cfg->lacp, "passive")) {
3229 VLOG_WARN("port %s: unknown LACP mode %s",
3230 port->name, port->cfg->lacp);
3235 static struct lacp_settings *
3236 port_configure_lacp(struct port *port, struct lacp_settings *s)
3238 const char *lacp_time, *system_id;
3241 if (!enable_lacp(port, &s->active)) {
3245 s->name = port->name;
3247 system_id = smap_get(&port->cfg->other_config, "lacp-system-id");
3249 if (sscanf(system_id, ETH_ADDR_SCAN_FMT,
3250 ETH_ADDR_SCAN_ARGS(s->id)) != ETH_ADDR_SCAN_COUNT) {
3251 VLOG_WARN("port %s: LACP system ID (%s) must be an Ethernet"
3252 " address.", port->name, system_id);
3256 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
3259 if (eth_addr_is_zero(s->id)) {
3260 VLOG_WARN("port %s: Invalid zero LACP system ID.", port->name);
3264 /* Prefer bondable links if unspecified. */
3265 priority = smap_get_int(&port->cfg->other_config, "lacp-system-priority",
3267 s->priority = (priority > 0 && priority <= UINT16_MAX
3269 : UINT16_MAX - !list_is_short(&port->ifaces));
3271 lacp_time = smap_get(&port->cfg->other_config, "lacp-time");
3272 s->fast = lacp_time && !strcasecmp(lacp_time, "fast");
3277 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
3279 int priority, portid, key;
3281 portid = smap_get_int(&iface->cfg->other_config, "lacp-port-id", 0);
3282 priority = smap_get_int(&iface->cfg->other_config, "lacp-port-priority",
3284 key = smap_get_int(&iface->cfg->other_config, "lacp-aggregation-key", 0);
3286 if (portid <= 0 || portid > UINT16_MAX) {
3287 portid = iface->ofp_port;
3290 if (priority <= 0 || priority > UINT16_MAX) {
3291 priority = UINT16_MAX;
3294 if (key < 0 || key > UINT16_MAX) {
3298 s->name = iface->name;
3300 s->priority = priority;
3305 port_configure_bond(struct port *port, struct bond_settings *s)
3307 const char *detect_s;
3308 struct iface *iface;
3309 int miimon_interval;
3311 s->name = port->name;
3313 if (port->cfg->bond_mode) {
3314 if (!bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
3315 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
3316 port->name, port->cfg->bond_mode,
3317 bond_mode_to_string(s->balance));
3320 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
3322 /* XXX: Post version 1.5.*, the default bond_mode changed from SLB to
3323 * active-backup. At some point we should remove this warning. */
3324 VLOG_WARN_RL(&rl, "port %s: Using the default bond_mode %s. Note that"
3325 " in previous versions, the default bond_mode was"
3326 " balance-slb", port->name,
3327 bond_mode_to_string(s->balance));
3329 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
3330 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
3331 "please use another bond type or disable flood_vlans",
3335 miimon_interval = smap_get_int(&port->cfg->other_config,
3336 "bond-miimon-interval", 0);
3337 if (miimon_interval <= 0) {
3338 miimon_interval = 200;
3341 detect_s = smap_get(&port->cfg->other_config, "bond-detect-mode");
3342 if (!detect_s || !strcmp(detect_s, "carrier")) {
3343 miimon_interval = 0;
3344 } else if (strcmp(detect_s, "miimon")) {
3345 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
3346 "defaulting to carrier", port->name, detect_s);
3347 miimon_interval = 0;
3350 s->up_delay = MAX(0, port->cfg->bond_updelay);
3351 s->down_delay = MAX(0, port->cfg->bond_downdelay);
3352 s->basis = smap_get_int(&port->cfg->other_config, "bond-hash-basis", 0);
3353 s->rebalance_interval = smap_get_int(&port->cfg->other_config,
3354 "bond-rebalance-interval", 10000);
3355 if (s->rebalance_interval && s->rebalance_interval < 1000) {
3356 s->rebalance_interval = 1000;
3359 s->fake_iface = port->cfg->bond_fake_iface;
3361 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
3362 netdev_set_miimon_interval(iface->netdev, miimon_interval);
3366 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
3367 * instead of obtaining it from the database. */
3369 port_is_synthetic(const struct port *port)
3371 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
3374 /* Interface functions. */
3377 iface_is_internal(const struct ovsrec_interface *iface,
3378 const struct ovsrec_bridge *br)
3380 /* The local port and "internal" ports are always "internal". */
3381 return !strcmp(iface->type, "internal") || !strcmp(iface->name, br->name);
3384 /* Returns the correct network device type for interface 'iface' in bridge
3387 iface_get_type(const struct ovsrec_interface *iface,
3388 const struct ovsrec_bridge *br)
3392 /* The local port always has type "internal". Other ports take
3393 * their type from the database and default to "system" if none is
3395 if (iface_is_internal(iface, br)) {
3398 type = iface->type[0] ? iface->type : "system";
3401 return ofproto_port_open_type(br->datapath_type, type);
3405 iface_destroy(struct iface *iface)
3408 struct port *port = iface->port;
3409 struct bridge *br = port->bridge;
3411 if (br->ofproto && iface->ofp_port >= 0) {
3412 ofproto_port_unregister(br->ofproto, iface->ofp_port);
3415 if (iface->ofp_port >= 0) {
3416 hmap_remove(&br->ifaces, &iface->ofp_port_node);
3419 list_remove(&iface->port_elem);
3420 hmap_remove(&br->iface_by_name, &iface->name_node);
3422 netdev_close(iface->netdev);
3429 static struct iface *
3430 iface_lookup(const struct bridge *br, const char *name)
3432 struct iface *iface;
3434 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
3435 &br->iface_by_name) {
3436 if (!strcmp(iface->name, name)) {
3444 static struct iface *
3445 iface_find(const char *name)
3447 const struct bridge *br;
3449 HMAP_FOR_EACH (br, node, &all_bridges) {
3450 struct iface *iface = iface_lookup(br, name);
3459 static struct if_cfg *
3460 if_cfg_lookup(const struct bridge *br, const char *name)
3462 struct if_cfg *if_cfg;
3464 HMAP_FOR_EACH_WITH_HASH (if_cfg, hmap_node, hash_string(name, 0),
3466 if (!strcmp(if_cfg->cfg->name, name)) {
3474 static struct iface *
3475 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
3477 struct iface *iface;
3479 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
3480 hash_int(ofp_port, 0), &br->ifaces) {
3481 if (iface->ofp_port == ofp_port) {
3488 /* Set Ethernet address of 'iface', if one is specified in the configuration
3491 iface_set_mac(struct iface *iface)
3493 uint8_t ea[ETH_ADDR_LEN];
3495 if (!strcmp(iface->type, "internal")
3496 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
3497 if (iface->ofp_port == OFPP_LOCAL) {
3498 VLOG_ERR("interface %s: ignoring mac in Interface record "
3499 "(use Bridge record to set local port's mac)",
3501 } else if (eth_addr_is_multicast(ea)) {
3502 VLOG_ERR("interface %s: cannot set MAC to multicast address",
3505 int error = netdev_set_etheraddr(iface->netdev, ea);
3507 VLOG_ERR("interface %s: setting MAC failed (%s)",
3508 iface->name, strerror(error));
3514 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
3516 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
3518 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3519 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
3523 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
3524 * sets the "ofport" field to -1.
3526 * This is appropriate when 'if_cfg''s interface cannot be created or is
3527 * otherwise invalid. */
3529 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
3531 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
3532 ovsrec_interface_set_status(if_cfg, NULL);
3533 ovsrec_interface_set_admin_state(if_cfg, NULL);
3534 ovsrec_interface_set_duplex(if_cfg, NULL);
3535 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
3536 ovsrec_interface_set_link_state(if_cfg, NULL);
3537 ovsrec_interface_set_mac_in_use(if_cfg, NULL);
3538 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
3539 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
3540 ovsrec_interface_set_cfm_fault_status(if_cfg, NULL, 0);
3541 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
3542 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
3543 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
3547 struct iface_delete_queues_cbdata {
3548 struct netdev *netdev;
3549 const struct ovsdb_datum *queues;
3553 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
3555 union ovsdb_atom atom;
3557 atom.integer = target;
3558 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
3562 iface_delete_queues(unsigned int queue_id,
3563 const struct smap *details OVS_UNUSED, void *cbdata_)
3565 struct iface_delete_queues_cbdata *cbdata = cbdata_;
3567 if (!queue_ids_include(cbdata->queues, queue_id)) {
3568 netdev_delete_queue(cbdata->netdev, queue_id);
3573 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
3575 struct ofpbuf queues_buf;
3577 ofpbuf_init(&queues_buf, 0);
3579 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
3580 netdev_set_qos(iface->netdev, NULL, NULL);
3582 struct iface_delete_queues_cbdata cbdata;
3586 /* Configure top-level Qos for 'iface'. */
3587 netdev_set_qos(iface->netdev, qos->type, &qos->other_config);
3589 /* Deconfigure queues that were deleted. */
3590 cbdata.netdev = iface->netdev;
3591 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
3593 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
3595 /* Configure queues for 'iface'. */
3597 for (i = 0; i < qos->n_queues; i++) {
3598 const struct ovsrec_queue *queue = qos->value_queues[i];
3599 unsigned int queue_id = qos->key_queues[i];
3601 if (queue_id == 0) {
3605 if (queue->n_dscp == 1) {
3606 struct ofproto_port_queue *port_queue;
3608 port_queue = ofpbuf_put_uninit(&queues_buf,
3609 sizeof *port_queue);
3610 port_queue->queue = queue_id;
3611 port_queue->dscp = queue->dscp[0];
3614 netdev_set_queue(iface->netdev, queue_id, &queue->other_config);
3617 struct smap details;
3619 smap_init(&details);
3620 netdev_set_queue(iface->netdev, 0, &details);
3621 smap_destroy(&details);
3625 if (iface->ofp_port >= 0) {
3626 const struct ofproto_port_queue *port_queues = queues_buf.data;
3627 size_t n_queues = queues_buf.size / sizeof *port_queues;
3629 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3630 port_queues, n_queues);
3633 netdev_set_policing(iface->netdev,
3634 iface->cfg->ingress_policing_rate,
3635 iface->cfg->ingress_policing_burst);
3637 ofpbuf_uninit(&queues_buf);
3641 iface_configure_cfm(struct iface *iface)
3643 const struct ovsrec_interface *cfg = iface->cfg;
3644 const char *opstate_str;
3645 const char *cfm_ccm_vlan;
3646 struct cfm_settings s;
3647 struct smap netdev_args;
3649 if (!cfg->n_cfm_mpid) {
3650 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3654 s.check_tnl_key = false;
3655 smap_init(&netdev_args);
3656 if (!netdev_get_config(iface->netdev, &netdev_args)) {
3657 const char *key = smap_get(&netdev_args, "key");
3658 const char *in_key = smap_get(&netdev_args, "in_key");
3660 s.check_tnl_key = (key && !strcmp(key, "flow"))
3661 || (in_key && !strcmp(in_key, "flow"));
3663 smap_destroy(&netdev_args);
3665 s.mpid = *cfg->cfm_mpid;
3666 s.interval = smap_get_int(&iface->cfg->other_config, "cfm_interval", 0);
3667 cfm_ccm_vlan = smap_get(&iface->cfg->other_config, "cfm_ccm_vlan");
3668 s.ccm_pcp = smap_get_int(&iface->cfg->other_config, "cfm_ccm_pcp", 0);
3670 if (s.interval <= 0) {
3674 if (!cfm_ccm_vlan) {
3676 } else if (!strcasecmp("random", cfm_ccm_vlan)) {
3677 s.ccm_vlan = CFM_RANDOM_VLAN;
3679 s.ccm_vlan = atoi(cfm_ccm_vlan);
3680 if (s.ccm_vlan == CFM_RANDOM_VLAN) {
3685 s.extended = smap_get_bool(&iface->cfg->other_config, "cfm_extended",
3688 opstate_str = smap_get(&iface->cfg->other_config, "cfm_opstate");
3689 s.opup = !opstate_str || !strcasecmp("up", opstate_str);
3691 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3694 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3695 * instead of obtaining it from the database. */
3697 iface_is_synthetic(const struct iface *iface)
3699 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3703 iface_pick_ofport(const struct ovsrec_interface *cfg)
3705 int64_t ofport = cfg->n_ofport ? *cfg->ofport : OFPP_NONE;
3706 return cfg->n_ofport_request ? *cfg->ofport_request : ofport;
3710 /* Port mirroring. */
3712 static struct mirror *
3713 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3717 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3718 if (uuid_equals(uuid, &m->uuid)) {
3726 bridge_configure_mirrors(struct bridge *br)
3728 const struct ovsdb_datum *mc;
3729 unsigned long *flood_vlans;
3730 struct mirror *m, *next;
3733 /* Get rid of deleted mirrors. */
3734 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3735 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3736 union ovsdb_atom atom;
3738 atom.uuid = m->uuid;
3739 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3744 /* Add new mirrors and reconfigure existing ones. */
3745 for (i = 0; i < br->cfg->n_mirrors; i++) {
3746 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3747 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3749 m = mirror_create(br, cfg);
3752 if (!mirror_configure(m)) {
3757 /* Update flooded vlans (for RSPAN). */
3758 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3759 br->cfg->n_flood_vlans);
3760 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3761 bitmap_free(flood_vlans);
3764 static struct mirror *
3765 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3769 m = xzalloc(sizeof *m);
3770 m->uuid = cfg->header_.uuid;
3771 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3773 m->name = xstrdup(cfg->name);
3779 mirror_destroy(struct mirror *m)
3782 struct bridge *br = m->bridge;
3785 ofproto_mirror_unregister(br->ofproto, m);
3788 hmap_remove(&br->mirrors, &m->hmap_node);
3795 mirror_collect_ports(struct mirror *m,
3796 struct ovsrec_port **in_ports, int n_in_ports,
3797 void ***out_portsp, size_t *n_out_portsp)
3799 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3800 size_t n_out_ports = 0;
3803 for (i = 0; i < n_in_ports; i++) {
3804 const char *name = in_ports[i]->name;
3805 struct port *port = port_lookup(m->bridge, name);
3807 out_ports[n_out_ports++] = port;
3809 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3810 "port %s", m->bridge->name, m->name, name);
3813 *out_portsp = out_ports;
3814 *n_out_portsp = n_out_ports;
3818 mirror_configure(struct mirror *m)
3820 const struct ovsrec_mirror *cfg = m->cfg;
3821 struct ofproto_mirror_settings s;
3824 if (strcmp(cfg->name, m->name)) {
3826 m->name = xstrdup(cfg->name);
3830 /* Get output port or VLAN. */
3831 if (cfg->output_port) {
3832 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3833 if (!s.out_bundle) {
3834 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3835 m->bridge->name, m->name);
3838 s.out_vlan = UINT16_MAX;
3840 if (cfg->output_vlan) {
3841 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3842 "output vlan; ignoring output vlan",
3843 m->bridge->name, m->name);
3845 } else if (cfg->output_vlan) {
3846 /* The database should prevent invalid VLAN values. */
3847 s.out_bundle = NULL;
3848 s.out_vlan = *cfg->output_vlan;
3850 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3851 m->bridge->name, m->name);
3855 /* Get port selection. */
3856 if (cfg->select_all) {
3857 size_t n_ports = hmap_count(&m->bridge->ports);
3858 void **ports = xmalloc(n_ports * sizeof *ports);
3863 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3873 /* Get ports, dropping ports that don't exist.
3874 * The IDL ensures that there are no duplicates. */
3875 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3876 &s.srcs, &s.n_srcs);
3877 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3878 &s.dsts, &s.n_dsts);
3881 /* Get VLAN selection. */
3882 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3885 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3888 if (s.srcs != s.dsts) {
3897 /* Linux VLAN device support (e.g. "eth0.10" for VLAN 10.)
3899 * This is deprecated. It is only for compatibility with broken device drivers
3900 * in old versions of Linux that do not properly support VLANs when VLAN
3901 * devices are not used. When broken device drivers are no longer in
3902 * widespread use, we will delete these interfaces. */
3904 static struct ovsrec_port **recs;
3905 static size_t n_recs, allocated_recs;
3907 /* Adds 'rec' to a list of recs that have to be destroyed when the VLAN
3908 * splinters are reconfigured. */
3910 register_rec(struct ovsrec_port *rec)
3912 if (n_recs >= allocated_recs) {
3913 recs = x2nrealloc(recs, &allocated_recs, sizeof *recs);
3915 recs[n_recs++] = rec;
3918 /* Frees all of the ports registered with register_reg(). */
3920 free_registered_recs(void)
3924 for (i = 0; i < n_recs; i++) {
3925 struct ovsrec_port *port = recs[i];
3928 for (j = 0; j < port->n_interfaces; j++) {
3929 struct ovsrec_interface *iface = port->interfaces[j];
3934 smap_destroy(&port->other_config);
3935 free(port->interfaces);
3943 /* Returns true if VLAN splinters are enabled on 'iface_cfg', false
3946 vlan_splinters_is_enabled(const struct ovsrec_interface *iface_cfg)
3948 return smap_get_bool(&iface_cfg->other_config, "enable-vlan-splinters",
3952 /* Figures out the set of VLANs that are in use for the purpose of VLAN
3955 * If VLAN splinters are enabled on at least one interface and any VLANs are in
3956 * use, returns a 4096-bit bitmap with a 1-bit for each in-use VLAN (bits 0 and
3957 * 4095 will not be set). The caller is responsible for freeing the bitmap,
3960 * If VLANs splinters are not enabled on any interface or if no VLANs are in
3961 * use, returns NULL.
3963 * Updates 'vlan_splinters_enabled_anywhere'. */
3964 static unsigned long int *
3965 collect_splinter_vlans(const struct ovsrec_open_vswitch *ovs_cfg)
3967 unsigned long int *splinter_vlans;
3968 struct sset splinter_ifaces;
3969 const char *real_dev_name;
3970 struct shash *real_devs;
3971 struct shash_node *node;
3975 /* Free space allocated for synthesized ports and interfaces, since we're
3976 * in the process of reconstructing all of them. */
3977 free_registered_recs();
3979 splinter_vlans = bitmap_allocate(4096);
3980 sset_init(&splinter_ifaces);
3981 vlan_splinters_enabled_anywhere = false;
3982 for (i = 0; i < ovs_cfg->n_bridges; i++) {
3983 struct ovsrec_bridge *br_cfg = ovs_cfg->bridges[i];
3986 for (j = 0; j < br_cfg->n_ports; j++) {
3987 struct ovsrec_port *port_cfg = br_cfg->ports[j];
3990 for (k = 0; k < port_cfg->n_interfaces; k++) {
3991 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[k];
3993 if (vlan_splinters_is_enabled(iface_cfg)) {
3994 vlan_splinters_enabled_anywhere = true;
3995 sset_add(&splinter_ifaces, iface_cfg->name);
3996 vlan_bitmap_from_array__(port_cfg->trunks,
4002 if (port_cfg->tag && *port_cfg->tag > 0 && *port_cfg->tag < 4095) {
4003 bitmap_set1(splinter_vlans, *port_cfg->tag);
4008 if (!vlan_splinters_enabled_anywhere) {
4009 free(splinter_vlans);
4010 sset_destroy(&splinter_ifaces);
4014 HMAP_FOR_EACH (br, node, &all_bridges) {
4016 ofproto_get_vlan_usage(br->ofproto, splinter_vlans);
4020 /* Don't allow VLANs 0 or 4095 to be splintered. VLAN 0 should appear on
4021 * the real device. VLAN 4095 is reserved and Linux doesn't allow a VLAN
4022 * device to be created for it. */
4023 bitmap_set0(splinter_vlans, 0);
4024 bitmap_set0(splinter_vlans, 4095);
4026 /* Delete all VLAN devices that we don't need. */
4028 real_devs = vlandev_get_real_devs();
4029 SHASH_FOR_EACH (node, real_devs) {
4030 const struct vlan_real_dev *real_dev = node->data;
4031 const struct vlan_dev *vlan_dev;
4032 bool real_dev_has_splinters;
4034 real_dev_has_splinters = sset_contains(&splinter_ifaces,
4036 HMAP_FOR_EACH (vlan_dev, hmap_node, &real_dev->vlan_devs) {
4037 if (!real_dev_has_splinters
4038 || !bitmap_is_set(splinter_vlans, vlan_dev->vid)) {
4039 struct netdev *netdev;
4041 if (!netdev_open(vlan_dev->name, "system", &netdev)) {
4042 if (!netdev_get_in4(netdev, NULL, NULL) ||
4043 !netdev_get_in6(netdev, NULL)) {
4044 vlandev_del(vlan_dev->name);
4046 /* It has an IP address configured, so we don't own
4047 * it. Don't delete it. */
4049 netdev_close(netdev);
4056 /* Add all VLAN devices that we need. */
4057 SSET_FOR_EACH (real_dev_name, &splinter_ifaces) {
4060 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4061 if (!vlandev_get_name(real_dev_name, vid)) {
4062 vlandev_add(real_dev_name, vid);
4069 sset_destroy(&splinter_ifaces);
4071 if (bitmap_scan(splinter_vlans, 0, 4096) >= 4096) {
4072 free(splinter_vlans);
4075 return splinter_vlans;
4078 /* Pushes the configure of VLAN splinter port 'port' (e.g. eth0.9) down to
4081 configure_splinter_port(struct port *port)
4083 struct ofproto *ofproto = port->bridge->ofproto;
4084 uint16_t realdev_ofp_port;
4085 const char *realdev_name;
4086 struct iface *vlandev, *realdev;
4088 ofproto_bundle_unregister(port->bridge->ofproto, port);
4090 vlandev = CONTAINER_OF(list_front(&port->ifaces), struct iface,
4093 realdev_name = smap_get(&port->cfg->other_config, "realdev");
4094 realdev = iface_lookup(port->bridge, realdev_name);
4095 realdev_ofp_port = realdev ? realdev->ofp_port : 0;
4097 ofproto_port_set_realdev(ofproto, vlandev->ofp_port, realdev_ofp_port,
4101 static struct ovsrec_port *
4102 synthesize_splinter_port(const char *real_dev_name,
4103 const char *vlan_dev_name, int vid)
4105 struct ovsrec_interface *iface;
4106 struct ovsrec_port *port;
4108 iface = xmalloc(sizeof *iface);
4109 ovsrec_interface_init(iface);
4110 iface->name = xstrdup(vlan_dev_name);
4111 iface->type = "system";
4113 port = xmalloc(sizeof *port);
4114 ovsrec_port_init(port);
4115 port->interfaces = xmemdup(&iface, sizeof iface);
4116 port->n_interfaces = 1;
4117 port->name = xstrdup(vlan_dev_name);
4118 port->vlan_mode = "splinter";
4119 port->tag = xmalloc(sizeof *port->tag);
4122 smap_add(&port->other_config, "realdev", real_dev_name);
4128 /* For each interface with 'br' that has VLAN splinters enabled, adds a
4129 * corresponding ovsrec_port to 'ports' for each splinter VLAN marked with a
4130 * 1-bit in the 'splinter_vlans' bitmap. */
4132 add_vlan_splinter_ports(struct bridge *br,
4133 const unsigned long int *splinter_vlans,
4134 struct shash *ports)
4138 /* We iterate through 'br->cfg->ports' instead of 'ports' here because
4139 * we're modifying 'ports'. */
4140 for (i = 0; i < br->cfg->n_ports; i++) {
4141 const char *name = br->cfg->ports[i]->name;
4142 struct ovsrec_port *port_cfg = shash_find_data(ports, name);
4145 for (j = 0; j < port_cfg->n_interfaces; j++) {
4146 struct ovsrec_interface *iface_cfg = port_cfg->interfaces[j];
4148 if (vlan_splinters_is_enabled(iface_cfg)) {
4149 const char *real_dev_name;
4152 real_dev_name = iface_cfg->name;
4153 BITMAP_FOR_EACH_1 (vid, 4096, splinter_vlans) {
4154 const char *vlan_dev_name;
4156 vlan_dev_name = vlandev_get_name(real_dev_name, vid);
4158 && !shash_find(ports, vlan_dev_name)) {
4159 shash_add(ports, vlan_dev_name,
4160 synthesize_splinter_port(
4161 real_dev_name, vlan_dev_name, vid));
4170 mirror_refresh_stats(struct mirror *m)
4172 struct ofproto *ofproto = m->bridge->ofproto;
4173 uint64_t tx_packets, tx_bytes;
4176 size_t stat_cnt = 0;
4178 if (ofproto_mirror_get_stats(ofproto, m, &tx_packets, &tx_bytes)) {
4179 ovsrec_mirror_set_statistics(m->cfg, NULL, NULL, 0);
4183 if (tx_packets != UINT64_MAX) {
4184 keys[stat_cnt] = "tx_packets";
4185 values[stat_cnt] = tx_packets;
4188 if (tx_bytes != UINT64_MAX) {
4189 keys[stat_cnt] = "tx_bytes";
4190 values[stat_cnt] = tx_bytes;
4194 ovsrec_mirror_set_statistics(m->cfg, keys, values, stat_cnt);