1 /* Copyright (c) 2008, 2009, 2010, 2011 Nicira Networks
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
28 #include "dynamic-string.h"
35 #include "ofp-print.h"
37 #include "ofproto/ofproto.h"
38 #include "poll-loop.h"
41 #include "socket-util.h"
42 #include "stream-ssl.h"
44 #include "system-stats.h"
48 #include "vswitchd/vswitch-idl.h"
49 #include "xenserver.h"
51 #include "sflow_api.h"
52 #include "vlan-bitmap.h"
54 VLOG_DEFINE_THIS_MODULE(bridge);
56 COVERAGE_DEFINE(bridge_reconfigure);
59 /* These members are always valid. */
60 struct list port_elem; /* Element in struct port's "ifaces" list. */
61 struct hmap_node name_node; /* In struct bridge's "iface_by_name" hmap. */
62 struct port *port; /* Containing port. */
63 char *name; /* Host network device name. */
64 tag_type tag; /* Tag associated with this interface. */
66 /* These members are valid only after bridge_reconfigure() causes them to
68 struct hmap_node ofp_port_node; /* In struct bridge's "ifaces" hmap. */
69 int ofp_port; /* OpenFlow port number, -1 if unknown. */
70 struct netdev *netdev; /* Network device. */
71 const char *type; /* Usually same as cfg->type. */
72 const struct ovsrec_interface *cfg;
76 struct uuid uuid; /* UUID of this "mirror" record in database. */
77 struct hmap_node hmap_node; /* In struct bridge's "mirrors" hmap. */
78 struct bridge *bridge;
83 struct bridge *bridge;
84 struct hmap_node hmap_node; /* Element in struct bridge's "ports" hmap. */
87 const struct ovsrec_port *cfg;
89 /* An ordinary bridge port has 1 interface.
90 * A bridge port for bonding has at least 2 interfaces. */
91 struct list ifaces; /* List of "struct iface"s. */
95 struct hmap_node node; /* In 'all_bridges'. */
96 char *name; /* User-specified arbitrary name. */
97 char *type; /* Datapath type. */
98 uint8_t ea[ETH_ADDR_LEN]; /* Bridge Ethernet Address. */
99 uint8_t default_ea[ETH_ADDR_LEN]; /* Default MAC. */
100 const struct ovsrec_bridge *cfg;
102 /* OpenFlow switch processing. */
103 struct ofproto *ofproto; /* OpenFlow switch. */
106 struct hmap ports; /* "struct port"s indexed by name. */
107 struct hmap ifaces; /* "struct iface"s indexed by ofp_port. */
108 struct hmap iface_by_name; /* "struct iface"s indexed by name. */
110 /* Port mirroring. */
111 struct hmap mirrors; /* "struct mirror" indexed by UUID. */
113 /* Synthetic local port if necessary. */
114 struct ovsrec_port synth_local_port;
115 struct ovsrec_interface synth_local_iface;
116 struct ovsrec_interface *synth_local_ifacep;
119 /* All bridges, indexed by name. */
120 static struct hmap all_bridges = HMAP_INITIALIZER(&all_bridges);
122 /* OVSDB IDL used to obtain configuration. */
123 static struct ovsdb_idl *idl;
125 /* Each time this timer expires, the bridge fetches systems and interface
126 * statistics and pushes them into the database. */
127 #define STATS_INTERVAL (5 * 1000) /* In milliseconds. */
128 static long long int stats_timer = LLONG_MIN;
130 /* Stores the time after which rate limited statistics may be written to the
131 * database. Only updated when changes to the database require rate limiting.
133 #define DB_LIMIT_INTERVAL (1 * 1000) /* In milliseconds. */
134 static long long int db_limiter = LLONG_MIN;
136 static void add_del_bridges(const struct ovsrec_open_vswitch *);
137 static void bridge_del_ofprotos(void);
138 static bool bridge_add_ofprotos(struct bridge *);
139 static void bridge_create(const struct ovsrec_bridge *);
140 static void bridge_destroy(struct bridge *);
141 static struct bridge *bridge_lookup(const char *name);
142 static unixctl_cb_func bridge_unixctl_dump_flows;
143 static unixctl_cb_func bridge_unixctl_reconnect;
144 static size_t bridge_get_controllers(const struct bridge *br,
145 struct ovsrec_controller ***controllersp);
146 static void bridge_add_del_ports(struct bridge *);
147 static void bridge_add_ofproto_ports(struct bridge *);
148 static void bridge_del_ofproto_ports(struct bridge *);
149 static void bridge_refresh_ofp_port(struct bridge *);
150 static void bridge_configure_datapath_id(struct bridge *);
151 static void bridge_configure_flow_eviction_threshold(struct bridge *);
152 static void bridge_configure_netflow(struct bridge *);
153 static void bridge_configure_forward_bpdu(struct bridge *);
154 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
155 static void bridge_configure_stp(struct bridge *);
156 static void bridge_configure_remotes(struct bridge *,
157 const struct sockaddr_in *managers,
159 static void bridge_pick_local_hw_addr(struct bridge *,
160 uint8_t ea[ETH_ADDR_LEN],
161 struct iface **hw_addr_iface);
162 static uint64_t bridge_pick_datapath_id(struct bridge *,
163 const uint8_t bridge_ea[ETH_ADDR_LEN],
164 struct iface *hw_addr_iface);
165 static const char *bridge_get_other_config(const struct ovsrec_bridge *,
167 static const char *get_port_other_config(const struct ovsrec_port *,
169 const char *default_value);
170 static uint64_t dpid_from_hash(const void *, size_t nbytes);
171 static bool bridge_has_bond_fake_iface(const struct bridge *,
173 static bool port_is_bond_fake_iface(const struct port *);
175 static unixctl_cb_func qos_unixctl_show;
177 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
178 static void port_add_ifaces(struct port *);
179 static void port_del_ifaces(struct port *);
180 static void port_destroy(struct port *);
181 static struct port *port_lookup(const struct bridge *, const char *name);
182 static void port_configure(struct port *);
183 static struct lacp_settings *port_configure_lacp(struct port *,
184 struct lacp_settings *);
185 static void port_configure_bond(struct port *, struct bond_settings *,
186 uint32_t *bond_stable_ids);
187 static bool port_is_synthetic(const struct port *);
189 static void bridge_configure_mirrors(struct bridge *);
190 static struct mirror *mirror_create(struct bridge *,
191 const struct ovsrec_mirror *);
192 static void mirror_destroy(struct mirror *);
193 static bool mirror_configure(struct mirror *, const struct ovsrec_mirror *);
195 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
196 static struct iface *iface_create(struct port *port,
197 const struct ovsrec_interface *if_cfg);
198 static void iface_destroy(struct iface *);
199 static struct iface *iface_lookup(const struct bridge *, const char *name);
200 static struct iface *iface_find(const char *name);
201 static struct iface *iface_from_ofp_port(const struct bridge *,
203 static void iface_set_mac(struct iface *);
204 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
205 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
206 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
207 static void iface_configure_cfm(struct iface *);
208 static void iface_refresh_cfm_stats(struct iface *);
209 static void iface_refresh_stats(struct iface *);
210 static void iface_refresh_status(struct iface *);
211 static bool iface_is_synthetic(const struct iface *);
213 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
215 static void shash_to_ovs_idl_map(struct shash *,
216 char ***keys, char ***values, size_t *n);
218 /* Public functions. */
220 /* Initializes the bridge module, configuring it to obtain its configuration
221 * from an OVSDB server accessed over 'remote', which should be a string in a
222 * form acceptable to ovsdb_idl_create(). */
224 bridge_init(const char *remote)
226 /* Create connection to database. */
227 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
228 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
230 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
231 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
232 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
233 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
234 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
235 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
236 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
238 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
239 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_status);
240 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
242 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_status);
243 ovsdb_idl_omit_alert(idl, &ovsrec_port_col_statistics);
244 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
245 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
247 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
248 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
249 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
250 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
251 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
252 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
253 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
254 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
255 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
256 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
257 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
258 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
259 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
261 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
262 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
263 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
264 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
266 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
268 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
270 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
272 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
274 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
276 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
277 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
278 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
279 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
280 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
282 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
284 /* Register unixctl commands. */
285 unixctl_command_register("qos/show", "interface", qos_unixctl_show, NULL);
286 unixctl_command_register("bridge/dump-flows", "bridge",
287 bridge_unixctl_dump_flows, NULL);
288 unixctl_command_register("bridge/reconnect", "[bridge]",
289 bridge_unixctl_reconnect, NULL);
298 struct bridge *br, *next_br;
300 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
303 ovsdb_idl_destroy(idl);
306 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
307 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
308 * responsible for freeing '*managersp' (with free()).
310 * You may be asking yourself "why does ovs-vswitchd care?", because
311 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
312 * should not be and in fact is not directly involved in that. But
313 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
314 * it has to tell in-band control where the managers are to enable that.
315 * (Thus, only managers connected in-band are collected.)
318 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
319 struct sockaddr_in **managersp, size_t *n_managersp)
321 struct sockaddr_in *managers = NULL;
322 size_t n_managers = 0;
326 /* Collect all of the potential targets from the "targets" columns of the
327 * rows pointed to by "manager_options", excluding any that are
330 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
331 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
333 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
334 sset_find_and_delete(&targets, m->target);
336 sset_add(&targets, m->target);
340 /* Now extract the targets' IP addresses. */
341 if (!sset_is_empty(&targets)) {
344 managers = xmalloc(sset_count(&targets) * sizeof *managers);
345 SSET_FOR_EACH (target, &targets) {
346 struct sockaddr_in *sin = &managers[n_managers];
348 if ((!strncmp(target, "tcp:", 4)
349 && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) ||
350 (!strncmp(target, "ssl:", 4)
351 && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) {
356 sset_destroy(&targets);
358 *managersp = managers;
359 *n_managersp = n_managers;
363 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
365 struct sockaddr_in *managers;
366 struct bridge *br, *next;
367 int sflow_bridge_number;
370 COVERAGE_INC(bridge_reconfigure);
372 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
373 * iface"s according to 'ovs_cfg', with only very minimal configuration
376 * This is mostly an update to bridge data structures. Very little is
377 * pushed down to ofproto or lower layers. */
378 add_del_bridges(ovs_cfg);
379 HMAP_FOR_EACH (br, node, &all_bridges) {
380 bridge_add_del_ports(br);
383 /* Delete all datapaths and datapath ports that are no longer configured.
385 * The kernel will reject any attempt to add a given port to a datapath if
386 * that port already belongs to a different datapath, so we must do all
387 * port deletions before any port additions. A datapath always has a
388 * "local port" so we must delete not-configured datapaths too. */
389 bridge_del_ofprotos();
390 HMAP_FOR_EACH (br, node, &all_bridges) {
392 bridge_del_ofproto_ports(br);
396 /* Create datapaths and datapath ports that are missing.
398 * After this is done, we have our final set of bridges, ports, and
399 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
400 * has at least one iface, every "struct iface" has a valid ofp_port and
402 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
403 if (!br->ofproto && !bridge_add_ofprotos(br)) {
407 HMAP_FOR_EACH (br, node, &all_bridges) {
408 bridge_refresh_ofp_port(br);
409 bridge_add_ofproto_ports(br);
412 /* Complete the configuration. */
413 sflow_bridge_number = 0;
414 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
415 HMAP_FOR_EACH (br, node, &all_bridges) {
418 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
421 port_configure(port);
423 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
424 iface_configure_cfm(iface);
425 iface_configure_qos(iface, port->cfg->qos);
426 iface_set_mac(iface);
429 bridge_configure_mirrors(br);
430 bridge_configure_datapath_id(br);
431 bridge_configure_flow_eviction_threshold(br);
432 bridge_configure_forward_bpdu(br);
433 bridge_configure_remotes(br, managers, n_managers);
434 bridge_configure_netflow(br);
435 bridge_configure_sflow(br, &sflow_bridge_number);
436 bridge_configure_stp(br);
440 /* ovs-vswitchd has completed initialization, so allow the process that
441 * forked us to exit successfully. */
442 daemonize_complete();
445 /* Iterate over all ofprotos and delete any of them that do not have a
446 * configured bridge or that are the wrong type. */
448 bridge_del_ofprotos(void)
456 ofproto_enumerate_types(&types);
457 SSET_FOR_EACH (type, &types) {
460 ofproto_enumerate_names(type, &names);
461 SSET_FOR_EACH (name, &names) {
462 struct bridge *br = bridge_lookup(name);
463 if (!br || strcmp(type, br->type)) {
464 ofproto_delete(name, type);
468 sset_destroy(&names);
469 sset_destroy(&types);
473 bridge_add_ofprotos(struct bridge *br)
475 int error = ofproto_create(br->name, br->type, &br->ofproto);
477 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
484 port_configure(struct port *port)
486 const struct ovsrec_port *cfg = port->cfg;
487 struct bond_settings bond_settings;
488 struct lacp_settings lacp_settings;
489 struct ofproto_bundle_settings s;
497 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
498 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
499 s.slaves[s.n_slaves++] = iface->ofp_port;
505 if (list_is_short(&port->ifaces)) {
506 if (*cfg->tag >= 0 && *cfg->tag <= 4095) {
510 /* It's possible that bonded, VLAN-tagged ports make sense. Maybe
511 * they even work as-is. But they have not been tested. */
512 VLOG_WARN("port %s: VLAN tags not supported on bonded ports",
517 /* Get VLAN trunks. */
520 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
524 if (cfg->vlan_mode) {
525 if (!strcmp(cfg->vlan_mode, "access")) {
526 s.vlan_mode = PORT_VLAN_ACCESS;
527 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
528 s.vlan_mode = PORT_VLAN_TRUNK;
529 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
530 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
531 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
532 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
534 /* This "can't happen" because ovsdb-server should prevent it. */
535 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
536 s.vlan_mode = PORT_VLAN_TRUNK;
540 s.vlan_mode = PORT_VLAN_ACCESS;
542 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
546 s.vlan_mode = PORT_VLAN_TRUNK;
549 s.use_priority_tags = !strcmp("true", get_port_other_config(
550 cfg, "priority-tags", ""));
552 /* Get LACP settings. */
553 s.lacp = port_configure_lacp(port, &lacp_settings);
557 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
558 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
559 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
562 s.lacp_slaves = NULL;
565 /* Get bond settings. */
566 if (s.n_slaves > 1) {
567 s.bond = &bond_settings;
568 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
569 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
572 s.bond_stable_ids = NULL;
574 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
575 netdev_set_miimon_interval(iface->netdev, 0);
580 ofproto_bundle_register(port->bridge->ofproto, port, &s);
586 free(s.bond_stable_ids);
589 /* Pick local port hardware address and datapath ID for 'br'. */
591 bridge_configure_datapath_id(struct bridge *br)
593 uint8_t ea[ETH_ADDR_LEN];
595 struct iface *local_iface;
596 struct iface *hw_addr_iface;
599 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
600 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
602 int error = netdev_set_etheraddr(local_iface->netdev, ea);
604 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
605 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
606 "Ethernet address: %s",
607 br->name, strerror(error));
610 memcpy(br->ea, ea, ETH_ADDR_LEN);
612 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
613 ofproto_set_datapath_id(br->ofproto, dpid);
615 dpid_string = xasprintf("%016"PRIx64, dpid);
616 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
620 /* Set NetFlow configuration on 'br'. */
622 bridge_configure_netflow(struct bridge *br)
624 struct ovsrec_netflow *cfg = br->cfg->netflow;
625 struct netflow_options opts;
628 ofproto_set_netflow(br->ofproto, NULL);
632 memset(&opts, 0, sizeof opts);
634 /* Get default NetFlow configuration from datapath.
635 * Apply overrides from 'cfg'. */
636 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
637 if (cfg->engine_type) {
638 opts.engine_type = *cfg->engine_type;
640 if (cfg->engine_id) {
641 opts.engine_id = *cfg->engine_id;
644 /* Configure active timeout interval. */
645 opts.active_timeout = cfg->active_timeout;
646 if (!opts.active_timeout) {
647 opts.active_timeout = -1;
648 } else if (opts.active_timeout < 0) {
649 VLOG_WARN("bridge %s: active timeout interval set to negative "
650 "value, using default instead (%d seconds)", br->name,
651 NF_ACTIVE_TIMEOUT_DEFAULT);
652 opts.active_timeout = -1;
655 /* Add engine ID to interface number to disambiguate bridgs? */
656 opts.add_id_to_iface = cfg->add_id_to_interface;
657 if (opts.add_id_to_iface) {
658 if (opts.engine_id > 0x7f) {
659 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
660 "another vswitch, choose an engine id less than 128",
663 if (hmap_count(&br->ports) > 508) {
664 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
665 "another port when more than 508 ports are used",
671 sset_init(&opts.collectors);
672 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
675 if (ofproto_set_netflow(br->ofproto, &opts)) {
676 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
678 sset_destroy(&opts.collectors);
681 /* Set sFlow configuration on 'br'. */
683 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
685 const struct ovsrec_sflow *cfg = br->cfg->sflow;
686 struct ovsrec_controller **controllers;
687 struct ofproto_sflow_options oso;
688 size_t n_controllers;
692 ofproto_set_sflow(br->ofproto, NULL);
696 memset(&oso, 0, sizeof oso);
698 sset_init(&oso.targets);
699 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
701 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
703 oso.sampling_rate = *cfg->sampling;
706 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
708 oso.polling_interval = *cfg->polling;
711 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
713 oso.header_len = *cfg->header;
716 oso.sub_id = (*sflow_bridge_number)++;
717 oso.agent_device = cfg->agent;
719 oso.control_ip = NULL;
720 n_controllers = bridge_get_controllers(br, &controllers);
721 for (i = 0; i < n_controllers; i++) {
722 if (controllers[i]->local_ip) {
723 oso.control_ip = controllers[i]->local_ip;
727 ofproto_set_sflow(br->ofproto, &oso);
729 sset_destroy(&oso.targets);
733 port_configure_stp(const struct ofproto *ofproto, struct port *port,
734 struct ofproto_port_stp_settings *port_s,
735 int *port_num_counter, unsigned long *port_num_bitmap)
737 const char *config_str;
740 config_str = get_port_other_config(port->cfg, "stp-enable", NULL);
741 if (config_str && !strcmp(config_str, "false")) {
742 port_s->enable = false;
745 port_s->enable = true;
748 /* STP over bonds is not supported. */
749 if (!list_is_singleton(&port->ifaces)) {
750 VLOG_ERR("port %s: cannot enable STP on bonds, disabling",
752 port_s->enable = false;
756 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
758 /* Internal ports shouldn't participate in spanning tree, so
760 if (!strcmp(iface->type, "internal")) {
761 VLOG_DBG("port %s: disable STP on internal ports", port->name);
762 port_s->enable = false;
766 /* STP on mirror output ports is not supported. */
767 if (ofproto_is_mirror_output_bundle(ofproto, port)) {
768 VLOG_DBG("port %s: disable STP on mirror ports", port->name);
769 port_s->enable = false;
773 config_str = get_port_other_config(port->cfg, "stp-port-num", NULL);
775 unsigned long int port_num = strtoul(config_str, NULL, 0);
776 int port_idx = port_num - 1;
778 if (port_num < 1 || port_num > STP_MAX_PORTS) {
779 VLOG_ERR("port %s: invalid stp-port-num", port->name);
780 port_s->enable = false;
784 if (bitmap_is_set(port_num_bitmap, port_idx)) {
785 VLOG_ERR("port %s: duplicate stp-port-num %lu, disabling",
786 port->name, port_num);
787 port_s->enable = false;
790 bitmap_set1(port_num_bitmap, port_idx);
791 port_s->port_num = port_idx;
793 if (*port_num_counter > STP_MAX_PORTS) {
794 VLOG_ERR("port %s: too many STP ports, disabling", port->name);
795 port_s->enable = false;
799 port_s->port_num = (*port_num_counter)++;
802 config_str = get_port_other_config(port->cfg, "stp-path-cost", NULL);
804 port_s->path_cost = strtoul(config_str, NULL, 10);
808 if (netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL)) {
809 /* Couldn't get speed, so assume 100Mb/s. */
810 port_s->path_cost = 19;
814 mbps = netdev_features_to_bps(current) / 1000000;
815 port_s->path_cost = stp_convert_speed_to_cost(mbps);
819 config_str = get_port_other_config(port->cfg, "stp-port-priority", NULL);
821 port_s->priority = strtoul(config_str, NULL, 0);
823 port_s->priority = STP_DEFAULT_PORT_PRIORITY;
827 /* Set spanning tree configuration on 'br'. */
829 bridge_configure_stp(struct bridge *br)
831 if (!br->cfg->stp_enable) {
832 ofproto_set_stp(br->ofproto, NULL);
834 struct ofproto_stp_settings br_s;
835 const char *config_str;
837 int port_num_counter;
838 unsigned long *port_num_bitmap;
840 config_str = bridge_get_other_config(br->cfg, "stp-system-id");
842 uint8_t ea[ETH_ADDR_LEN];
844 if (eth_addr_from_string(config_str, ea)) {
845 br_s.system_id = eth_addr_to_uint64(ea);
847 br_s.system_id = eth_addr_to_uint64(br->ea);
848 VLOG_ERR("bridge %s: invalid stp-system-id, defaulting "
849 "to "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(br->ea));
852 br_s.system_id = eth_addr_to_uint64(br->ea);
855 config_str = bridge_get_other_config(br->cfg, "stp-priority");
857 br_s.priority = strtoul(config_str, NULL, 0);
859 br_s.priority = STP_DEFAULT_BRIDGE_PRIORITY;
862 config_str = bridge_get_other_config(br->cfg, "stp-hello-time");
864 br_s.hello_time = strtoul(config_str, NULL, 10) * 1000;
866 br_s.hello_time = STP_DEFAULT_HELLO_TIME;
869 config_str = bridge_get_other_config(br->cfg, "stp-max-age");
871 br_s.max_age = strtoul(config_str, NULL, 10) * 1000;
873 br_s.max_age = STP_DEFAULT_MAX_AGE;
876 config_str = bridge_get_other_config(br->cfg, "stp-forward-delay");
878 br_s.fwd_delay = strtoul(config_str, NULL, 10) * 1000;
880 br_s.fwd_delay = STP_DEFAULT_FWD_DELAY;
883 /* Configure STP on the bridge. */
884 if (ofproto_set_stp(br->ofproto, &br_s)) {
885 VLOG_ERR("bridge %s: could not enable STP", br->name);
889 /* Users must either set the port number with the "stp-port-num"
890 * configuration on all ports or none. If manual configuration
891 * is not done, then we allocate them sequentially. */
892 port_num_counter = 0;
893 port_num_bitmap = bitmap_allocate(STP_MAX_PORTS);
894 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
895 struct ofproto_port_stp_settings port_s;
898 port_configure_stp(br->ofproto, port, &port_s,
899 &port_num_counter, port_num_bitmap);
901 /* As bonds are not supported, just apply configuration to
903 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
904 if (ofproto_port_set_stp(br->ofproto, iface->ofp_port,
906 VLOG_ERR("port %s: could not enable STP", port->name);
912 if (bitmap_scan(port_num_bitmap, 0, STP_MAX_PORTS) != STP_MAX_PORTS
913 && port_num_counter) {
914 VLOG_ERR("bridge %s: must manually configure all STP port "
915 "IDs or none, disabling", br->name);
916 ofproto_set_stp(br->ofproto, NULL);
918 bitmap_free(port_num_bitmap);
923 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
925 const struct port *port = port_lookup(br, name);
926 return port && port_is_bond_fake_iface(port);
930 port_is_bond_fake_iface(const struct port *port)
932 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
936 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
938 struct bridge *br, *next;
942 /* Collect new bridges' names and types. */
944 for (i = 0; i < cfg->n_bridges; i++) {
945 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
946 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
948 if (strchr(br_cfg->name, '/')) {
949 /* Prevent remote ovsdb-server users from accessing arbitrary
950 * directories, e.g. consider a bridge named "../../../etc/". */
951 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
953 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
954 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
958 /* Get rid of deleted bridges or those whose types have changed.
959 * Update 'cfg' of bridges that still exist. */
960 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
961 br->cfg = shash_find_data(&new_br, br->name);
962 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
963 br->cfg->datapath_type))) {
968 /* Add new bridges. */
969 for (i = 0; i < cfg->n_bridges; i++) {
970 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
971 struct bridge *br = bridge_lookup(br_cfg->name);
973 bridge_create(br_cfg);
977 shash_destroy(&new_br);
980 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
983 * The kernel will reject any attempt to add a given port to a datapath if that
984 * port already belongs to a different datapath, so we must do all port
985 * deletions before any port additions. */
987 bridge_del_ofproto_ports(struct bridge *br)
989 struct ofproto_port_dump dump;
990 struct ofproto_port ofproto_port;
992 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
993 const char *name = ofproto_port.name;
998 /* Ignore the local port. We can't change it anyhow. */
999 if (!strcmp(name, br->name)) {
1003 /* Get the type that 'ofproto_port' should have (ordinarily the
1004 * type of its corresponding iface) or NULL if it should be
1006 iface = iface_lookup(br, name);
1007 type = (iface ? iface->type
1008 : bridge_has_bond_fake_iface(br, name) ? "internal"
1011 /* If it's the wrong type then delete the ofproto port. */
1013 && !strcmp(ofproto_port.type, type)
1014 && (!iface || !iface->netdev
1015 || !strcmp(netdev_get_type(iface->netdev), type))) {
1018 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
1020 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
1021 br->name, name, strerror(error));
1024 netdev_close(iface->netdev);
1025 iface->netdev = NULL;
1031 iface_set_ofp_port(struct iface *iface, int ofp_port)
1033 struct bridge *br = iface->port->bridge;
1035 assert(iface->ofp_port < 0 && ofp_port >= 0);
1036 iface->ofp_port = ofp_port;
1037 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
1038 iface_set_ofport(iface->cfg, ofp_port);
1042 bridge_refresh_ofp_port(struct bridge *br)
1044 struct ofproto_port_dump dump;
1045 struct ofproto_port ofproto_port;
1048 /* Clear all the "ofp_port"es. */
1049 hmap_clear(&br->ifaces);
1050 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1051 struct iface *iface;
1053 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1054 iface->ofp_port = -1;
1058 /* Obtain the correct "ofp_port"s from ofproto. */
1059 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
1060 struct iface *iface = iface_lookup(br, ofproto_port.name);
1062 if (iface->ofp_port >= 0) {
1063 VLOG_WARN("bridge %s: interface %s reported twice",
1064 br->name, ofproto_port.name);
1065 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
1066 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
1067 br->name, ofproto_port.ofp_port);
1069 iface_set_ofp_port(iface, ofproto_port.ofp_port);
1075 /* Add an ofproto port for any "struct iface" that doesn't have one.
1076 * Delete any "struct iface" for which this fails.
1077 * Delete any "struct port" that thereby ends up with no ifaces. */
1079 bridge_add_ofproto_ports(struct bridge *br)
1081 struct port *port, *next_port;
1083 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1084 struct iface *iface, *next_iface;
1085 struct ofproto_port ofproto_port;
1087 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
1090 /* Open the netdev. */
1091 if (!iface->netdev) {
1092 error = netdev_open(iface->name, iface->type, &iface->netdev);
1094 VLOG_WARN("could not open network device %s (%s)",
1095 iface->name, strerror(error));
1101 /* Configure the netdev. */
1102 if (iface->netdev) {
1106 shash_from_ovs_idl_map(iface->cfg->key_options,
1107 iface->cfg->value_options,
1108 iface->cfg->n_options, &args);
1109 error = netdev_set_config(iface->netdev, &args);
1110 shash_destroy(&args);
1113 VLOG_WARN("could not configure network device %s (%s)",
1114 iface->name, strerror(error));
1115 netdev_close(iface->netdev);
1116 iface->netdev = NULL;
1120 /* Add the port, if necessary. */
1121 if (iface->netdev && iface->ofp_port < 0) {
1125 error = ofproto_port_add(br->ofproto, iface->netdev,
1128 iface_set_ofp_port(iface, ofp_port);
1130 netdev_close(iface->netdev);
1131 iface->netdev = NULL;
1135 /* Populate stats columns in new Interface rows. */
1136 if (iface->netdev && !iface->cfg->mtu) {
1137 iface_refresh_stats(iface);
1138 iface_refresh_status(iface);
1141 /* Delete the iface if we failed. */
1142 if (iface->netdev && iface->ofp_port >= 0) {
1143 VLOG_DBG("bridge %s: interface %s is on port %d",
1144 br->name, iface->name, iface->ofp_port);
1146 if (iface->netdev) {
1147 VLOG_ERR("bridge %s: missing %s interface, dropping",
1148 br->name, iface->name);
1150 /* We already reported a related error, don't bother
1151 * duplicating it. */
1153 iface_clear_db_record(iface->cfg);
1154 iface_destroy(iface);
1157 if (list_is_empty(&port->ifaces)) {
1158 VLOG_WARN("%s port has no interfaces, dropping", port->name);
1163 /* Add bond fake iface if necessary. */
1164 if (port_is_bond_fake_iface(port)) {
1165 if (ofproto_port_query_by_name(br->ofproto, port->name,
1167 struct netdev *netdev;
1170 error = netdev_open(port->name, "internal", &netdev);
1172 ofproto_port_add(br->ofproto, netdev, NULL);
1173 netdev_close(netdev);
1175 VLOG_WARN("could not open network device %s (%s)",
1176 port->name, strerror(error));
1179 /* Already exists, nothing to do. */
1180 ofproto_port_destroy(&ofproto_port);
1187 get_ovsrec_key_value(char **keys, char **values, size_t n, const char *key)
1191 for (i = 0; i < n; i++) {
1192 if (!strcmp(keys[i], key)) {
1200 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1202 return get_ovsrec_key_value(br_cfg->key_other_config,
1203 br_cfg->value_other_config,
1204 br_cfg->n_other_config, key);
1207 /* Set Flow eviction threshold */
1209 bridge_configure_flow_eviction_threshold(struct bridge *br)
1211 const char *threshold_str;
1214 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1215 if (threshold_str) {
1216 threshold = strtoul(threshold_str, NULL, 10);
1218 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1220 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1223 /* Set forward BPDU option. */
1225 bridge_configure_forward_bpdu(struct bridge *br)
1227 const char *forward_bpdu_str;
1228 bool forward_bpdu = false;
1230 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1231 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1232 forward_bpdu = true;
1234 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1238 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1239 struct iface **hw_addr_iface)
1243 bool found_addr = false;
1246 *hw_addr_iface = NULL;
1248 /* Did the user request a particular MAC? */
1249 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1250 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1251 if (eth_addr_is_multicast(ea)) {
1252 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1253 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1254 } else if (eth_addr_is_zero(ea)) {
1255 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1261 /* Otherwise choose the minimum non-local MAC address among all of the
1263 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1264 uint8_t iface_ea[ETH_ADDR_LEN];
1265 struct iface *candidate;
1266 struct iface *iface;
1268 /* Mirror output ports don't participate. */
1269 if (ofproto_is_mirror_output_bundle(br->ofproto, port)) {
1273 /* Choose the MAC address to represent the port. */
1275 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1276 /* Find the interface with this Ethernet address (if any) so that
1277 * we can provide the correct devname to the caller. */
1278 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1279 uint8_t candidate_ea[ETH_ADDR_LEN];
1280 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1281 && eth_addr_equals(iface_ea, candidate_ea)) {
1286 /* Choose the interface whose MAC address will represent the port.
1287 * The Linux kernel bonding code always chooses the MAC address of
1288 * the first slave added to a bond, and the Fedora networking
1289 * scripts always add slaves to a bond in alphabetical order, so
1290 * for compatibility we choose the interface with the name that is
1291 * first in alphabetical order. */
1292 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1293 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1298 /* The local port doesn't count (since we're trying to choose its
1299 * MAC address anyway). */
1300 if (iface->ofp_port == OFPP_LOCAL) {
1305 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1311 /* Compare against our current choice. */
1312 if (!eth_addr_is_multicast(iface_ea) &&
1313 !eth_addr_is_local(iface_ea) &&
1314 !eth_addr_is_reserved(iface_ea) &&
1315 !eth_addr_is_zero(iface_ea) &&
1316 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1318 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1319 *hw_addr_iface = iface;
1324 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1325 br->name, ETH_ADDR_ARGS(ea));
1327 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1328 *hw_addr_iface = NULL;
1329 VLOG_WARN("bridge %s: using default bridge Ethernet "
1330 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1334 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1335 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1336 * an interface on 'br', then that interface must be passed in as
1337 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1338 * 'hw_addr_iface' must be passed in as a null pointer. */
1340 bridge_pick_datapath_id(struct bridge *br,
1341 const uint8_t bridge_ea[ETH_ADDR_LEN],
1342 struct iface *hw_addr_iface)
1345 * The procedure for choosing a bridge MAC address will, in the most
1346 * ordinary case, also choose a unique MAC that we can use as a datapath
1347 * ID. In some special cases, though, multiple bridges will end up with
1348 * the same MAC address. This is OK for the bridges, but it will confuse
1349 * the OpenFlow controller, because each datapath needs a unique datapath
1352 * Datapath IDs must be unique. It is also very desirable that they be
1353 * stable from one run to the next, so that policy set on a datapath
1356 const char *datapath_id;
1359 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1360 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1364 if (!hw_addr_iface) {
1366 * A purely internal bridge, that is, one that has no non-virtual
1367 * network devices on it at all, is difficult because it has no
1368 * natural unique identifier at all.
1370 * When the host is a XenServer, we handle this case by hashing the
1371 * host's UUID with the name of the bridge. Names of bridges are
1372 * persistent across XenServer reboots, although they can be reused if
1373 * an internal network is destroyed and then a new one is later
1374 * created, so this is fairly effective.
1376 * When the host is not a XenServer, we punt by using a random MAC
1377 * address on each run.
1379 const char *host_uuid = xenserver_get_host_uuid();
1381 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1382 dpid = dpid_from_hash(combined, strlen(combined));
1388 return eth_addr_to_uint64(bridge_ea);
1392 dpid_from_hash(const void *data, size_t n)
1394 uint8_t hash[SHA1_DIGEST_SIZE];
1396 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1397 sha1_bytes(data, n, hash);
1398 eth_addr_mark_random(hash);
1399 return eth_addr_to_uint64(hash);
1403 iface_refresh_status(struct iface *iface)
1407 enum netdev_flags flags;
1414 if (iface_is_synthetic(iface)) {
1420 if (!netdev_get_status(iface->netdev, &sh)) {
1422 char **keys, **values;
1424 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1425 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1430 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1433 shash_destroy_free_data(&sh);
1435 error = netdev_get_flags(iface->netdev, &flags);
1437 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1440 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1443 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1445 ovsrec_interface_set_duplex(iface->cfg,
1446 netdev_features_is_full_duplex(current)
1448 /* warning: uint64_t -> int64_t conversion */
1449 bps = netdev_features_to_bps(current);
1450 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1453 ovsrec_interface_set_duplex(iface->cfg, NULL);
1454 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1457 error = netdev_get_mtu(iface->netdev, &mtu);
1460 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1463 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1467 /* Writes 'iface''s CFM statistics to the database. */
1469 iface_refresh_cfm_stats(struct iface *iface)
1471 const struct ovsrec_interface *cfg = iface->cfg;
1473 const uint64_t *rmps;
1476 if (iface_is_synthetic(iface)) {
1480 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1483 bool fault_bool = fault;
1484 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1486 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1489 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1490 iface->ofp_port, &rmps, &n_rmps);
1492 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1495 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1500 iface_refresh_stats(struct iface *iface)
1502 #define IFACE_STATS \
1503 IFACE_STAT(rx_packets, "rx_packets") \
1504 IFACE_STAT(tx_packets, "tx_packets") \
1505 IFACE_STAT(rx_bytes, "rx_bytes") \
1506 IFACE_STAT(tx_bytes, "tx_bytes") \
1507 IFACE_STAT(rx_dropped, "rx_dropped") \
1508 IFACE_STAT(tx_dropped, "tx_dropped") \
1509 IFACE_STAT(rx_errors, "rx_errors") \
1510 IFACE_STAT(tx_errors, "tx_errors") \
1511 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1512 IFACE_STAT(rx_over_errors, "rx_over_err") \
1513 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1514 IFACE_STAT(collisions, "collisions")
1516 #define IFACE_STAT(MEMBER, NAME) NAME,
1517 static char *keys[] = { IFACE_STATS };
1519 int64_t values[ARRAY_SIZE(keys)];
1522 struct netdev_stats stats;
1524 if (iface_is_synthetic(iface)) {
1528 /* Intentionally ignore return value, since errors will set 'stats' to
1529 * all-1s, and we will deal with that correctly below. */
1530 netdev_get_stats(iface->netdev, &stats);
1532 /* Copy statistics into values[] array. */
1534 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1537 assert(i == ARRAY_SIZE(keys));
1539 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1544 br_refresh_stp_status(struct bridge *br)
1546 struct ofproto *ofproto = br->ofproto;
1547 struct ofproto_stp_status status;
1548 char *keys[3], *values[3];
1551 if (ofproto_get_stp_status(ofproto, &status)) {
1555 if (!status.enabled) {
1556 ovsrec_bridge_set_status(br->cfg, NULL, NULL, 0);
1560 keys[0] = "stp_bridge_id",
1561 values[0] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.bridge_id));
1562 keys[1] = "stp_designated_root",
1563 values[1] = xasprintf(STP_ID_FMT, STP_ID_ARGS(status.designated_root));
1564 keys[2] = "stp_root_path_cost",
1565 values[2] = xasprintf("%d", status.root_path_cost);
1567 ovsrec_bridge_set_status(br->cfg, keys, values, ARRAY_SIZE(values));
1569 for (i = 0; i < ARRAY_SIZE(values); i++) {
1575 port_refresh_stp_status(struct port *port)
1577 struct ofproto *ofproto = port->bridge->ofproto;
1578 struct iface *iface;
1579 struct ofproto_port_stp_status status;
1581 char *str_values[4];
1582 int64_t int_values[3];
1585 if (port_is_synthetic(port)) {
1589 /* STP doesn't currently support bonds. */
1590 if (!list_is_singleton(&port->ifaces)) {
1591 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1595 iface = CONTAINER_OF(list_front(&port->ifaces), struct iface, port_elem);
1597 if (ofproto_port_get_stp_status(ofproto, iface->ofp_port, &status)) {
1601 if (!status.enabled) {
1602 ovsrec_port_set_status(port->cfg, NULL, NULL, 0);
1603 ovsrec_port_set_statistics(port->cfg, NULL, NULL, 0);
1607 /* Set Status column. */
1608 keys[0] = "stp_port_id";
1609 str_values[0] = xasprintf(STP_PORT_ID_FMT, status.port_id);
1610 keys[1] = "stp_state";
1611 str_values[1] = xstrdup(stp_state_name(status.state));
1612 keys[2] = "stp_sec_in_state";
1613 str_values[2] = xasprintf("%u", status.sec_in_state);
1614 keys[3] = "stp_role";
1615 str_values[3] = xstrdup(stp_role_name(status.role));
1617 ovsrec_port_set_status(port->cfg, keys, str_values,
1618 ARRAY_SIZE(str_values));
1620 for (i = 0; i < ARRAY_SIZE(str_values); i++) {
1621 free(str_values[i]);
1624 /* Set Statistics column. */
1625 keys[0] = "stp_tx_count";
1626 int_values[0] = status.tx_count;
1627 keys[1] = "stp_rx_count";
1628 int_values[1] = status.rx_count;
1629 keys[2] = "stp_error_count";
1630 int_values[2] = status.error_count;
1632 ovsrec_port_set_statistics(port->cfg, keys, int_values,
1633 ARRAY_SIZE(int_values));
1637 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1641 /* Use other-config:enable-system-stats by preference. */
1642 enable = get_ovsrec_key_value(cfg->key_other_config,
1643 cfg->value_other_config,
1644 cfg->n_other_config,
1645 "enable-statistics");
1647 return !strcmp(enable, "true");
1650 /* Disable by default. */
1655 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1657 struct ovsdb_datum datum;
1661 if (enable_system_stats(cfg)) {
1662 get_system_stats(&stats);
1665 ovsdb_datum_from_shash(&datum, &stats);
1666 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1670 static inline const char *
1671 nx_role_to_str(enum nx_role role)
1676 case NX_ROLE_MASTER:
1681 return "*** INVALID ROLE ***";
1686 refresh_controller_status(void)
1690 const struct ovsrec_controller *cfg;
1694 /* Accumulate status for controllers on all bridges. */
1695 HMAP_FOR_EACH (br, node, &all_bridges) {
1696 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1699 /* Update each controller in the database with current status. */
1700 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1701 struct ofproto_controller_info *cinfo =
1702 shash_find_data(&info, cfg->target);
1705 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1706 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1707 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1708 (char **) cinfo->pairs.values,
1711 ovsrec_controller_set_is_connected(cfg, false);
1712 ovsrec_controller_set_role(cfg, NULL);
1713 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1717 ofproto_free_ofproto_controller_info(&info);
1721 refresh_cfm_stats(void)
1723 static struct ovsdb_idl_txn *txn = NULL;
1728 txn = ovsdb_idl_txn_create(idl);
1730 HMAP_FOR_EACH (br, node, &all_bridges) {
1731 struct iface *iface;
1733 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1734 iface_refresh_cfm_stats(iface);
1739 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1740 ovsdb_idl_txn_destroy(txn);
1748 const struct ovsrec_open_vswitch *cfg;
1750 bool datapath_destroyed;
1751 bool database_changed;
1754 /* (Re)configure if necessary. */
1755 database_changed = ovsdb_idl_run(idl);
1756 if (ovsdb_idl_is_lock_contended(idl)) {
1757 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1758 struct bridge *br, *next_br;
1760 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1761 "disabling this process until it goes away");
1763 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1767 } else if (!ovsdb_idl_has_lock(idl)) {
1770 cfg = ovsrec_open_vswitch_first(idl);
1772 /* Let each bridge do the work that it needs to do. */
1773 datapath_destroyed = false;
1774 HMAP_FOR_EACH (br, node, &all_bridges) {
1775 int error = ofproto_run(br->ofproto);
1777 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1778 VLOG_ERR_RL(&rl, "bridge %s: datapath was destroyed externally, "
1779 "forcing reconfiguration", br->name);
1780 datapath_destroyed = true;
1784 /* Re-configure SSL. We do this on every trip through the main loop,
1785 * instead of just when the database changes, because the contents of the
1786 * key and certificate files can change without the database changing.
1788 * We do this before bridge_reconfigure() because that function might
1789 * initiate SSL connections and thus requires SSL to be configured. */
1790 if (cfg && cfg->ssl) {
1791 const struct ovsrec_ssl *ssl = cfg->ssl;
1793 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1794 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1797 if (database_changed || datapath_destroyed) {
1799 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1801 bridge_reconfigure(cfg);
1803 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1804 ovsdb_idl_txn_commit(txn);
1805 ovsdb_idl_txn_destroy(txn); /* XXX */
1807 /* We still need to reconfigure to avoid dangling pointers to
1808 * now-destroyed ovsrec structures inside bridge data. */
1809 static const struct ovsrec_open_vswitch null_cfg;
1811 bridge_reconfigure(&null_cfg);
1815 /* Refresh system and interface stats if necessary. */
1816 if (time_msec() >= stats_timer) {
1818 struct ovsdb_idl_txn *txn;
1820 txn = ovsdb_idl_txn_create(idl);
1821 HMAP_FOR_EACH (br, node, &all_bridges) {
1824 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1825 struct iface *iface;
1827 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1828 iface_refresh_stats(iface);
1829 iface_refresh_status(iface);
1833 refresh_system_stats(cfg);
1834 refresh_controller_status();
1835 ovsdb_idl_txn_commit(txn);
1836 ovsdb_idl_txn_destroy(txn); /* XXX */
1839 stats_timer = time_msec() + STATS_INTERVAL;
1842 if (time_msec() >= db_limiter) {
1843 struct ovsdb_idl_txn *txn;
1845 txn = ovsdb_idl_txn_create(idl);
1846 HMAP_FOR_EACH (br, node, &all_bridges) {
1847 struct iface *iface;
1850 br_refresh_stp_status(br);
1852 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1853 port_refresh_stp_status(port);
1856 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1857 const char *link_state;
1858 int64_t link_resets;
1861 if (iface_is_synthetic(iface)) {
1865 current = ofproto_port_is_lacp_current(br->ofproto,
1869 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1871 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1874 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1875 ovsrec_interface_set_link_state(iface->cfg, link_state);
1877 link_resets = netdev_get_carrier_resets(iface->netdev);
1878 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1882 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1883 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1885 ovsdb_idl_txn_destroy(txn);
1888 refresh_cfm_stats();
1894 ovsdb_idl_wait(idl);
1895 if (!hmap_is_empty(&all_bridges)) {
1898 HMAP_FOR_EACH (br, node, &all_bridges) {
1899 ofproto_wait(br->ofproto);
1901 poll_timer_wait_until(stats_timer);
1903 if (db_limiter > time_msec()) {
1904 poll_timer_wait_until(db_limiter);
1909 /* QoS unixctl user interface functions. */
1911 struct qos_unixctl_show_cbdata {
1913 struct iface *iface;
1917 qos_unixctl_show_cb(unsigned int queue_id,
1918 const struct shash *details,
1921 struct qos_unixctl_show_cbdata *data = aux;
1922 struct ds *ds = data->ds;
1923 struct iface *iface = data->iface;
1924 struct netdev_queue_stats stats;
1925 struct shash_node *node;
1928 ds_put_cstr(ds, "\n");
1930 ds_put_format(ds, "Queue %u:\n", queue_id);
1932 ds_put_cstr(ds, "Default:\n");
1935 SHASH_FOR_EACH (node, details) {
1936 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
1939 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
1941 if (stats.tx_packets != UINT64_MAX) {
1942 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
1945 if (stats.tx_bytes != UINT64_MAX) {
1946 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
1949 if (stats.tx_errors != UINT64_MAX) {
1950 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
1953 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
1954 queue_id, strerror(error));
1959 qos_unixctl_show(struct unixctl_conn *conn,
1960 const char *args, void *aux OVS_UNUSED)
1962 struct ds ds = DS_EMPTY_INITIALIZER;
1963 struct shash sh = SHASH_INITIALIZER(&sh);
1964 struct iface *iface;
1966 struct shash_node *node;
1967 struct qos_unixctl_show_cbdata data;
1970 iface = iface_find(args);
1972 unixctl_command_reply(conn, 501, "no such interface");
1976 netdev_get_qos(iface->netdev, &type, &sh);
1978 if (*type != '\0') {
1979 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
1981 SHASH_FOR_EACH (node, &sh) {
1982 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
1987 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
1990 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
1992 unixctl_command_reply(conn, 200, ds_cstr(&ds));
1994 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
1995 unixctl_command_reply(conn, 501, ds_cstr(&ds));
1998 shash_destroy_free_data(&sh);
2002 /* Bridge reconfiguration functions. */
2004 bridge_create(const struct ovsrec_bridge *br_cfg)
2008 assert(!bridge_lookup(br_cfg->name));
2009 br = xzalloc(sizeof *br);
2011 br->name = xstrdup(br_cfg->name);
2012 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
2015 /* Derive the default Ethernet address from the bridge's UUID. This should
2016 * be unique and it will be stable between ovs-vswitchd runs. */
2017 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
2018 eth_addr_mark_random(br->default_ea);
2020 hmap_init(&br->ports);
2021 hmap_init(&br->ifaces);
2022 hmap_init(&br->iface_by_name);
2023 hmap_init(&br->mirrors);
2025 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
2029 bridge_destroy(struct bridge *br)
2032 struct mirror *mirror, *next_mirror;
2033 struct port *port, *next_port;
2035 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
2038 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
2039 mirror_destroy(mirror);
2041 hmap_remove(&all_bridges, &br->node);
2042 ofproto_destroy(br->ofproto);
2043 hmap_destroy(&br->ifaces);
2044 hmap_destroy(&br->ports);
2045 hmap_destroy(&br->iface_by_name);
2046 hmap_destroy(&br->mirrors);
2053 static struct bridge *
2054 bridge_lookup(const char *name)
2058 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
2059 if (!strcmp(br->name, name)) {
2066 /* Handle requests for a listing of all flows known by the OpenFlow
2067 * stack, including those normally hidden. */
2069 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
2070 const char *args, void *aux OVS_UNUSED)
2075 br = bridge_lookup(args);
2077 unixctl_command_reply(conn, 501, "Unknown bridge");
2082 ofproto_get_all_flows(br->ofproto, &results);
2084 unixctl_command_reply(conn, 200, ds_cstr(&results));
2085 ds_destroy(&results);
2088 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
2089 * connections and reconnect. If BRIDGE is not specified, then all bridges
2090 * drop their controller connections and reconnect. */
2092 bridge_unixctl_reconnect(struct unixctl_conn *conn,
2093 const char *args, void *aux OVS_UNUSED)
2096 if (args[0] != '\0') {
2097 br = bridge_lookup(args);
2099 unixctl_command_reply(conn, 501, "Unknown bridge");
2102 ofproto_reconnect_controllers(br->ofproto);
2104 HMAP_FOR_EACH (br, node, &all_bridges) {
2105 ofproto_reconnect_controllers(br->ofproto);
2108 unixctl_command_reply(conn, 200, NULL);
2112 bridge_get_controllers(const struct bridge *br,
2113 struct ovsrec_controller ***controllersp)
2115 struct ovsrec_controller **controllers;
2116 size_t n_controllers;
2118 controllers = br->cfg->controller;
2119 n_controllers = br->cfg->n_controller;
2121 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
2127 *controllersp = controllers;
2129 return n_controllers;
2132 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
2133 * those configured in 'br->cfg'. */
2135 bridge_add_del_ports(struct bridge *br)
2137 struct port *port, *next;
2138 struct shash_node *node;
2139 struct shash new_ports;
2142 /* Collect new ports. */
2143 shash_init(&new_ports);
2144 for (i = 0; i < br->cfg->n_ports; i++) {
2145 const char *name = br->cfg->ports[i]->name;
2146 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
2147 VLOG_WARN("bridge %s: %s specified twice as bridge port",
2151 if (bridge_get_controllers(br, NULL)
2152 && !shash_find(&new_ports, br->name)) {
2153 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
2154 br->name, br->name);
2156 br->synth_local_port.interfaces = &br->synth_local_ifacep;
2157 br->synth_local_port.n_interfaces = 1;
2158 br->synth_local_port.name = br->name;
2160 br->synth_local_iface.name = br->name;
2161 br->synth_local_iface.type = "internal";
2163 br->synth_local_ifacep = &br->synth_local_iface;
2165 shash_add(&new_ports, br->name, &br->synth_local_port);
2168 /* Get rid of deleted ports.
2169 * Get rid of deleted interfaces on ports that still exist. */
2170 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
2171 port->cfg = shash_find_data(&new_ports, port->name);
2175 port_del_ifaces(port);
2179 /* Create new ports.
2180 * Add new interfaces to existing ports. */
2181 SHASH_FOR_EACH (node, &new_ports) {
2182 struct port *port = port_lookup(br, node->name);
2184 struct ovsrec_port *cfg = node->data;
2185 port = port_create(br, cfg);
2187 port_add_ifaces(port);
2188 if (list_is_empty(&port->ifaces)) {
2189 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
2190 br->name, port->name);
2194 shash_destroy(&new_ports);
2197 /* Initializes 'oc' appropriately as a management service controller for
2200 * The caller must free oc->target when it is no longer needed. */
2202 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
2203 struct ofproto_controller *oc)
2205 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
2206 oc->max_backoff = 0;
2207 oc->probe_interval = 60;
2208 oc->band = OFPROTO_OUT_OF_BAND;
2210 oc->burst_limit = 0;
2213 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
2215 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
2216 struct ofproto_controller *oc)
2218 oc->target = c->target;
2219 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
2220 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
2221 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
2222 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
2223 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
2224 oc->burst_limit = (c->controller_burst_limit
2225 ? *c->controller_burst_limit : 0);
2228 /* Configures the IP stack for 'br''s local interface properly according to the
2229 * configuration in 'c'. */
2231 bridge_configure_local_iface_netdev(struct bridge *br,
2232 struct ovsrec_controller *c)
2234 struct netdev *netdev;
2235 struct in_addr mask, gateway;
2237 struct iface *local_iface;
2240 /* If there's no local interface or no IP address, give up. */
2241 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
2242 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
2246 /* Bring up the local interface. */
2247 netdev = local_iface->netdev;
2248 netdev_turn_flags_on(netdev, NETDEV_UP, true);
2250 /* Configure the IP address and netmask. */
2251 if (!c->local_netmask
2252 || !inet_aton(c->local_netmask, &mask)
2254 mask.s_addr = guess_netmask(ip.s_addr);
2256 if (!netdev_set_in4(netdev, ip, mask)) {
2257 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
2258 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
2261 /* Configure the default gateway. */
2262 if (c->local_gateway
2263 && inet_aton(c->local_gateway, &gateway)
2264 && gateway.s_addr) {
2265 if (!netdev_add_router(netdev, gateway)) {
2266 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
2267 br->name, IP_ARGS(&gateway.s_addr));
2272 /* Returns true if 'a' and 'b' are the same except that any number of slashes
2273 * in either string are treated as equal to any number of slashes in the other,
2274 * e.g. "x///y" is equal to "x/y". */
2276 equal_pathnames(const char *a, const char *b)
2280 a += strspn(a, "/");
2281 b += strspn(b, "/");
2282 } else if (*a == '\0') {
2293 bridge_configure_remotes(struct bridge *br,
2294 const struct sockaddr_in *managers, size_t n_managers)
2296 const char *disable_ib_str, *queue_id_str;
2297 bool disable_in_band = false;
2300 struct ovsrec_controller **controllers;
2301 size_t n_controllers;
2303 enum ofproto_fail_mode fail_mode;
2305 struct ofproto_controller *ocs;
2309 /* Check if we should disable in-band control on this bridge. */
2310 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2311 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2312 disable_in_band = true;
2315 /* Set OpenFlow queue ID for in-band control. */
2316 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2317 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2318 ofproto_set_in_band_queue(br->ofproto, queue_id);
2320 if (disable_in_band) {
2321 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2323 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2326 n_controllers = bridge_get_controllers(br, &controllers);
2328 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2331 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2332 for (i = 0; i < n_controllers; i++) {
2333 struct ovsrec_controller *c = controllers[i];
2335 if (!strncmp(c->target, "punix:", 6)
2336 || !strncmp(c->target, "unix:", 5)) {
2337 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2340 whitelist = xasprintf("unix:%s/%s.controller",
2341 ovs_rundir(), br->name);
2342 if (!equal_pathnames(c->target, whitelist)) {
2343 /* Prevent remote ovsdb-server users from accessing arbitrary
2344 * Unix domain sockets and overwriting arbitrary local
2346 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2347 "controller \"%s\" due to possibility for remote "
2348 "exploit. Instead, specify whitelisted \"%s\" or "
2349 "connect to \"unix:%s/%s.mgmt\" (which is always "
2350 "available without special configuration).",
2351 br->name, c->target, whitelist,
2352 ovs_rundir(), br->name);
2360 bridge_configure_local_iface_netdev(br, c);
2361 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2362 if (disable_in_band) {
2363 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2368 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2369 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2372 /* Set the fail-mode. */
2373 fail_mode = !br->cfg->fail_mode
2374 || !strcmp(br->cfg->fail_mode, "standalone")
2375 ? OFPROTO_FAIL_STANDALONE
2376 : OFPROTO_FAIL_SECURE;
2377 ofproto_set_fail_mode(br->ofproto, fail_mode);
2379 /* Configure OpenFlow controller connection snooping. */
2380 if (!ofproto_has_snoops(br->ofproto)) {
2384 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2385 ovs_rundir(), br->name));
2386 ofproto_set_snoops(br->ofproto, &snoops);
2387 sset_destroy(&snoops);
2391 /* Port functions. */
2393 static struct port *
2394 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2398 port = xzalloc(sizeof *port);
2400 port->name = xstrdup(cfg->name);
2402 list_init(&port->ifaces);
2404 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2406 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2412 get_port_other_config(const struct ovsrec_port *port, const char *key,
2413 const char *default_value)
2417 value = get_ovsrec_key_value(port->key_other_config,
2418 port->value_other_config,
2419 port->n_other_config, key);
2420 return value ? value : default_value;
2424 get_interface_other_config(const struct ovsrec_interface *iface,
2425 const char *key, const char *default_value)
2429 value = get_ovsrec_key_value(iface->key_other_config,
2430 iface->value_other_config,
2431 iface->n_other_config, key);
2432 return value ? value : default_value;
2435 /* Deletes interfaces from 'port' that are no longer configured for it. */
2437 port_del_ifaces(struct port *port)
2439 struct iface *iface, *next;
2440 struct sset new_ifaces;
2443 /* Collect list of new interfaces. */
2444 sset_init(&new_ifaces);
2445 for (i = 0; i < port->cfg->n_interfaces; i++) {
2446 const char *name = port->cfg->interfaces[i]->name;
2447 const char *type = port->cfg->interfaces[i]->name;
2448 if (strcmp(type, "null")) {
2449 sset_add(&new_ifaces, name);
2453 /* Get rid of deleted interfaces. */
2454 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2455 if (!sset_contains(&new_ifaces, iface->name)) {
2456 iface_destroy(iface);
2460 sset_destroy(&new_ifaces);
2463 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2466 port_add_ifaces(struct port *port)
2468 struct shash new_ifaces;
2469 struct shash_node *node;
2472 /* Collect new ifaces. */
2473 shash_init(&new_ifaces);
2474 for (i = 0; i < port->cfg->n_interfaces; i++) {
2475 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2476 if (strcmp(cfg->type, "null")
2477 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2478 VLOG_WARN("port %s: %s specified twice as port interface",
2479 port->name, cfg->name);
2480 iface_clear_db_record(cfg);
2484 /* Create new interfaces.
2485 * Update interface types and 'cfg' members. */
2486 SHASH_FOR_EACH (node, &new_ifaces) {
2487 const struct ovsrec_interface *cfg = node->data;
2488 const char *iface_name = node->name;
2489 struct iface *iface;
2491 iface = iface_lookup(port->bridge, iface_name);
2493 iface = iface_create(port, cfg);
2498 /* Determine interface type. The local port always has type
2499 * "internal". Other ports take their type from the database and
2500 * default to "system" if none is specified. */
2501 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2502 : cfg->type[0] ? cfg->type
2505 shash_destroy(&new_ifaces);
2509 port_destroy(struct port *port)
2512 struct bridge *br = port->bridge;
2513 struct iface *iface, *next;
2516 ofproto_bundle_unregister(br->ofproto, port);
2519 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2520 iface_destroy(iface);
2523 hmap_remove(&br->ports, &port->hmap_node);
2525 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2532 static struct port *
2533 port_lookup(const struct bridge *br, const char *name)
2537 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2539 if (!strcmp(port->name, name)) {
2547 enable_lacp(struct port *port, bool *activep)
2549 if (!port->cfg->lacp) {
2550 /* XXX when LACP implementation has been sufficiently tested, enable by
2551 * default and make active on bonded ports. */
2553 } else if (!strcmp(port->cfg->lacp, "off")) {
2555 } else if (!strcmp(port->cfg->lacp, "active")) {
2558 } else if (!strcmp(port->cfg->lacp, "passive")) {
2562 VLOG_WARN("port %s: unknown LACP mode %s",
2563 port->name, port->cfg->lacp);
2568 static struct lacp_settings *
2569 port_configure_lacp(struct port *port, struct lacp_settings *s)
2571 const char *lacp_time;
2572 long long int custom_time;
2575 if (!enable_lacp(port, &s->active)) {
2579 s->name = port->name;
2580 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2582 /* Prefer bondable links if unspecified. */
2583 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2585 s->priority = (priority > 0 && priority <= UINT16_MAX
2587 : UINT16_MAX - !list_is_short(&port->ifaces));
2589 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2594 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2595 custom_time = atoi(lacp_time);
2596 if (!strcmp(lacp_time, "fast")) {
2597 s->lacp_time = LACP_TIME_FAST;
2598 } else if (!strcmp(lacp_time, "slow")) {
2599 s->lacp_time = LACP_TIME_SLOW;
2600 } else if (custom_time > 0) {
2601 s->lacp_time = LACP_TIME_CUSTOM;
2602 s->custom_time = custom_time;
2604 s->lacp_time = LACP_TIME_SLOW;
2611 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2613 int priority, portid, key;
2615 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2616 priority = atoi(get_interface_other_config(iface->cfg,
2617 "lacp-port-priority", "0"));
2618 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2621 if (portid <= 0 || portid > UINT16_MAX) {
2622 portid = iface->ofp_port;
2625 if (priority <= 0 || priority > UINT16_MAX) {
2626 priority = UINT16_MAX;
2629 if (key < 0 || key > UINT16_MAX) {
2633 s->name = iface->name;
2635 s->priority = priority;
2640 port_configure_bond(struct port *port, struct bond_settings *s,
2641 uint32_t *bond_stable_ids)
2643 const char *detect_s;
2644 struct iface *iface;
2645 int miimon_interval;
2648 s->name = port->name;
2649 s->balance = BM_SLB;
2650 if (port->cfg->bond_mode
2651 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2652 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2653 port->name, port->cfg->bond_mode,
2654 bond_mode_to_string(s->balance));
2656 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2657 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2658 "please use another bond type or disable flood_vlans",
2662 miimon_interval = atoi(get_port_other_config(port->cfg,
2663 "bond-miimon-interval", "0"));
2664 if (miimon_interval <= 0) {
2665 miimon_interval = 200;
2668 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2669 if (!strcmp(detect_s, "carrier")) {
2670 miimon_interval = 0;
2671 } else if (strcmp(detect_s, "miimon")) {
2672 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2673 "defaulting to carrier", port->name, detect_s);
2674 miimon_interval = 0;
2677 s->up_delay = MAX(0, port->cfg->bond_updelay);
2678 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2679 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2680 s->rebalance_interval = atoi(
2681 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2682 if (s->rebalance_interval < 1000) {
2683 s->rebalance_interval = 1000;
2686 s->fake_iface = port->cfg->bond_fake_iface;
2689 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2690 long long stable_id;
2692 stable_id = atoll(get_interface_other_config(iface->cfg,
2693 "bond-stable-id", "0"));
2694 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2695 stable_id = iface->ofp_port;
2697 bond_stable_ids[i++] = stable_id;
2699 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2703 /* Returns true if 'port' is synthetic, that is, if we constructed it locally
2704 * instead of obtaining it from the database. */
2706 port_is_synthetic(const struct port *port)
2708 return ovsdb_idl_row_is_synthetic(&port->cfg->header_);
2711 /* Interface functions. */
2713 static struct iface *
2714 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2716 struct bridge *br = port->bridge;
2717 struct iface *iface;
2718 char *name = if_cfg->name;
2720 iface = xzalloc(sizeof *iface);
2722 iface->name = xstrdup(name);
2723 iface->ofp_port = -1;
2724 iface->tag = tag_create_random();
2725 iface->netdev = NULL;
2726 iface->cfg = if_cfg;
2728 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2730 list_push_back(&port->ifaces, &iface->port_elem);
2732 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2738 iface_destroy(struct iface *iface)
2741 struct port *port = iface->port;
2742 struct bridge *br = port->bridge;
2744 if (br->ofproto && iface->ofp_port >= 0) {
2745 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2748 if (iface->ofp_port >= 0) {
2749 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2752 list_remove(&iface->port_elem);
2753 hmap_remove(&br->iface_by_name, &iface->name_node);
2755 netdev_close(iface->netdev);
2762 static struct iface *
2763 iface_lookup(const struct bridge *br, const char *name)
2765 struct iface *iface;
2767 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2768 &br->iface_by_name) {
2769 if (!strcmp(iface->name, name)) {
2777 static struct iface *
2778 iface_find(const char *name)
2780 const struct bridge *br;
2782 HMAP_FOR_EACH (br, node, &all_bridges) {
2783 struct iface *iface = iface_lookup(br, name);
2792 static struct iface *
2793 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2795 struct iface *iface;
2797 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2798 hash_int(ofp_port, 0), &br->ifaces) {
2799 if (iface->ofp_port == ofp_port) {
2806 /* Set Ethernet address of 'iface', if one is specified in the configuration
2809 iface_set_mac(struct iface *iface)
2811 uint8_t ea[ETH_ADDR_LEN];
2813 if (!strcmp(iface->type, "internal")
2814 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2815 if (iface->ofp_port == OFPP_LOCAL) {
2816 VLOG_ERR("interface %s: ignoring mac in Interface record "
2817 "(use Bridge record to set local port's mac)",
2819 } else if (eth_addr_is_multicast(ea)) {
2820 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2823 int error = netdev_set_etheraddr(iface->netdev, ea);
2825 VLOG_ERR("interface %s: setting MAC failed (%s)",
2826 iface->name, strerror(error));
2832 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2834 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2836 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2837 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2841 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
2842 * sets the "ofport" field to -1.
2844 * This is appropriate when 'if_cfg''s interface cannot be created or is
2845 * otherwise invalid. */
2847 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
2849 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2850 iface_set_ofport(if_cfg, -1);
2851 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
2852 ovsrec_interface_set_admin_state(if_cfg, NULL);
2853 ovsrec_interface_set_duplex(if_cfg, NULL);
2854 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
2855 ovsrec_interface_set_link_state(if_cfg, NULL);
2856 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
2857 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
2858 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
2859 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
2860 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
2864 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2866 * The value strings in '*shash' are taken directly from values[], not copied,
2867 * so the caller should not modify or free them. */
2869 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2870 struct shash *shash)
2875 for (i = 0; i < n; i++) {
2876 shash_add(shash, keys[i], values[i]);
2880 /* Creates 'keys' and 'values' arrays from 'shash'.
2882 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2883 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2884 * are populated with with strings taken directly from 'shash' and thus have
2885 * the same ownership of the key-value pairs in shash.
2888 shash_to_ovs_idl_map(struct shash *shash,
2889 char ***keys, char ***values, size_t *n)
2893 struct shash_node *sn;
2895 count = shash_count(shash);
2897 k = xmalloc(count * sizeof *k);
2898 v = xmalloc(count * sizeof *v);
2901 SHASH_FOR_EACH(sn, shash) {
2912 struct iface_delete_queues_cbdata {
2913 struct netdev *netdev;
2914 const struct ovsdb_datum *queues;
2918 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2920 union ovsdb_atom atom;
2922 atom.integer = target;
2923 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2927 iface_delete_queues(unsigned int queue_id,
2928 const struct shash *details OVS_UNUSED, void *cbdata_)
2930 struct iface_delete_queues_cbdata *cbdata = cbdata_;
2932 if (!queue_ids_include(cbdata->queues, queue_id)) {
2933 netdev_delete_queue(cbdata->netdev, queue_id);
2938 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
2940 struct ofpbuf queues_buf;
2942 ofpbuf_init(&queues_buf, 0);
2944 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
2945 netdev_set_qos(iface->netdev, NULL, NULL);
2947 struct iface_delete_queues_cbdata cbdata;
2948 struct shash details;
2952 /* Configure top-level Qos for 'iface'. */
2953 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
2954 qos->n_other_config, &details);
2955 netdev_set_qos(iface->netdev, qos->type, &details);
2956 shash_destroy(&details);
2958 /* Deconfigure queues that were deleted. */
2959 cbdata.netdev = iface->netdev;
2960 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
2962 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
2964 /* Configure queues for 'iface'. */
2966 for (i = 0; i < qos->n_queues; i++) {
2967 const struct ovsrec_queue *queue = qos->value_queues[i];
2968 unsigned int queue_id = qos->key_queues[i];
2970 if (queue_id == 0) {
2974 if (queue->n_dscp == 1) {
2975 struct ofproto_port_queue *port_queue;
2977 port_queue = ofpbuf_put_uninit(&queues_buf,
2978 sizeof *port_queue);
2979 port_queue->queue = queue_id;
2980 port_queue->dscp = queue->dscp[0];
2983 shash_from_ovs_idl_map(queue->key_other_config,
2984 queue->value_other_config,
2985 queue->n_other_config, &details);
2986 netdev_set_queue(iface->netdev, queue_id, &details);
2987 shash_destroy(&details);
2990 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2991 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
2992 "queue (queue 0). Packets not directed to a "
2993 "correctly configured queue may be dropped.",
2998 if (iface->ofp_port >= 0) {
2999 const struct ofproto_port_queue *port_queues = queues_buf.data;
3000 size_t n_queues = queues_buf.size / sizeof *port_queues;
3002 ofproto_port_set_queues(iface->port->bridge->ofproto, iface->ofp_port,
3003 port_queues, n_queues);
3006 netdev_set_policing(iface->netdev,
3007 iface->cfg->ingress_policing_rate,
3008 iface->cfg->ingress_policing_burst);
3010 ofpbuf_uninit(&queues_buf);
3014 iface_configure_cfm(struct iface *iface)
3016 const struct ovsrec_interface *cfg = iface->cfg;
3017 const char *extended_str, *opstate_str;
3018 struct cfm_settings s;
3020 if (!cfg->n_cfm_mpid) {
3021 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
3025 s.mpid = *cfg->cfm_mpid;
3026 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
3028 s.ccm_vlan = atoi(get_interface_other_config(iface->cfg, "cfm_ccm_vlan",
3030 if (s.interval <= 0) {
3034 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
3036 s.extended = !strcasecmp("true", extended_str);
3038 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
3039 s.opup = !strcasecmp("up", opstate_str);
3041 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
3044 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
3045 * instead of obtaining it from the database. */
3047 iface_is_synthetic(const struct iface *iface)
3049 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
3052 /* Port mirroring. */
3054 static struct mirror *
3055 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
3059 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
3060 if (uuid_equals(uuid, &m->uuid)) {
3068 bridge_configure_mirrors(struct bridge *br)
3070 const struct ovsdb_datum *mc;
3071 unsigned long *flood_vlans;
3072 struct mirror *m, *next;
3075 /* Get rid of deleted mirrors. */
3076 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
3077 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
3078 union ovsdb_atom atom;
3080 atom.uuid = m->uuid;
3081 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
3086 /* Add new mirrors and reconfigure existing ones. */
3087 for (i = 0; i < br->cfg->n_mirrors; i++) {
3088 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
3089 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
3091 m = mirror_create(br, cfg);
3093 if (!mirror_configure(m, cfg)) {
3098 /* Update flooded vlans (for RSPAN). */
3099 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
3100 br->cfg->n_flood_vlans);
3101 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
3102 bitmap_free(flood_vlans);
3105 static struct mirror *
3106 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
3110 m = xzalloc(sizeof *m);
3111 m->uuid = cfg->header_.uuid;
3112 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
3114 m->name = xstrdup(cfg->name);
3120 mirror_destroy(struct mirror *m)
3123 struct bridge *br = m->bridge;
3126 ofproto_mirror_unregister(br->ofproto, m);
3129 hmap_remove(&br->mirrors, &m->hmap_node);
3136 mirror_collect_ports(struct mirror *m,
3137 struct ovsrec_port **in_ports, int n_in_ports,
3138 void ***out_portsp, size_t *n_out_portsp)
3140 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
3141 size_t n_out_ports = 0;
3144 for (i = 0; i < n_in_ports; i++) {
3145 const char *name = in_ports[i]->name;
3146 struct port *port = port_lookup(m->bridge, name);
3148 out_ports[n_out_ports++] = port;
3150 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
3151 "port %s", m->bridge->name, m->name, name);
3154 *out_portsp = out_ports;
3155 *n_out_portsp = n_out_ports;
3159 mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
3161 struct ofproto_mirror_settings s;
3164 if (strcmp(cfg->name, m->name)) {
3166 m->name = xstrdup(cfg->name);
3170 /* Get output port or VLAN. */
3171 if (cfg->output_port) {
3172 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
3173 if (!s.out_bundle) {
3174 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
3175 m->bridge->name, m->name);
3178 s.out_vlan = UINT16_MAX;
3180 if (cfg->output_vlan) {
3181 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
3182 "output vlan; ignoring output vlan",
3183 m->bridge->name, m->name);
3185 } else if (cfg->output_vlan) {
3186 /* The database should prevent invalid VLAN values. */
3187 s.out_bundle = NULL;
3188 s.out_vlan = *cfg->output_vlan;
3190 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
3191 m->bridge->name, m->name);
3195 /* Get port selection. */
3196 if (cfg->select_all) {
3197 size_t n_ports = hmap_count(&m->bridge->ports);
3198 void **ports = xmalloc(n_ports * sizeof *ports);
3203 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
3213 /* Get ports, dropping ports that don't exist.
3214 * The IDL ensures that there are no duplicates. */
3215 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
3216 &s.srcs, &s.n_srcs);
3217 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
3218 &s.dsts, &s.n_dsts);
3221 /* Get VLAN selection. */
3222 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
3225 ofproto_mirror_register(m->bridge->ofproto, m, &s);
3228 if (s.srcs != s.dsts) {