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_netflow(struct bridge *);
152 static void bridge_configure_sflow(struct bridge *, int *sflow_bridge_number);
153 static void bridge_configure_remotes(struct bridge *,
154 const struct sockaddr_in *managers,
156 static void bridge_pick_local_hw_addr(struct bridge *,
157 uint8_t ea[ETH_ADDR_LEN],
158 struct iface **hw_addr_iface);
159 static uint64_t bridge_pick_datapath_id(struct bridge *,
160 const uint8_t bridge_ea[ETH_ADDR_LEN],
161 struct iface *hw_addr_iface);
162 static uint64_t dpid_from_hash(const void *, size_t nbytes);
163 static bool bridge_has_bond_fake_iface(const struct bridge *,
165 static bool port_is_bond_fake_iface(const struct port *);
167 static unixctl_cb_func cfm_unixctl_show;
168 static unixctl_cb_func qos_unixctl_show;
170 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
171 static void port_add_ifaces(struct port *);
172 static void port_del_ifaces(struct port *);
173 static void port_destroy(struct port *);
174 static struct port *port_lookup(const struct bridge *, const char *name);
175 static void port_configure(struct port *);
176 static struct lacp_settings *port_configure_lacp(struct port *,
177 struct lacp_settings *);
178 static void port_configure_bond(struct port *, struct bond_settings *,
179 uint32_t *bond_stable_ids);
181 static void bridge_configure_mirrors(struct bridge *);
182 static struct mirror *mirror_create(struct bridge *,
183 const struct ovsrec_mirror *);
184 static void mirror_destroy(struct mirror *);
185 static bool mirror_configure(struct mirror *, const struct ovsrec_mirror *);
187 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
188 static struct iface *iface_create(struct port *port,
189 const struct ovsrec_interface *if_cfg);
190 static void iface_destroy(struct iface *);
191 static struct iface *iface_lookup(const struct bridge *, const char *name);
192 static struct iface *iface_find(const char *name);
193 static struct iface *iface_from_ofp_port(const struct bridge *,
195 static void iface_set_mac(struct iface *);
196 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
197 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
198 static void iface_configure_cfm(struct iface *);
199 static bool iface_refresh_cfm_stats(struct iface *iface);
200 static bool iface_get_carrier(const struct iface *);
201 static bool iface_is_synthetic(const struct iface *);
203 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
205 static void shash_to_ovs_idl_map(struct shash *,
206 char ***keys, char ***values, size_t *n);
208 /* Public functions. */
210 /* Initializes the bridge module, configuring it to obtain its configuration
211 * from an OVSDB server accessed over 'remote', which should be a string in a
212 * form acceptable to ovsdb_idl_create(). */
214 bridge_init(const char *remote)
216 /* Create connection to database. */
217 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
219 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
220 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
221 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
222 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
223 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
224 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
225 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
227 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
228 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
230 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
231 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
233 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
234 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
235 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
236 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
237 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
238 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
239 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
240 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
241 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
243 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
244 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
245 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
246 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
248 ovsdb_idl_omit_alert(idl, &ovsrec_maintenance_point_col_fault);
250 ovsdb_idl_omit_alert(idl, &ovsrec_monitor_col_fault);
252 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
254 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
256 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
258 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
260 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
262 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
263 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
264 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
265 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
266 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
268 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
270 /* Register unixctl commands. */
271 unixctl_command_register("cfm/show", cfm_unixctl_show, NULL);
272 unixctl_command_register("qos/show", qos_unixctl_show, NULL);
273 unixctl_command_register("bridge/dump-flows", bridge_unixctl_dump_flows,
275 unixctl_command_register("bridge/reconnect", bridge_unixctl_reconnect,
284 struct bridge *br, *next_br;
286 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
289 ovsdb_idl_destroy(idl);
292 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
293 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
294 * responsible for freeing '*managersp' (with free()).
296 * You may be asking yourself "why does ovs-vswitchd care?", because
297 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
298 * should not be and in fact is not directly involved in that. But
299 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
300 * it has to tell in-band control where the managers are to enable that.
301 * (Thus, only managers connected in-band are collected.)
304 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
305 struct sockaddr_in **managersp, size_t *n_managersp)
307 struct sockaddr_in *managers = NULL;
308 size_t n_managers = 0;
312 /* Collect all of the potential targets from the "targets" columns of the
313 * rows pointed to by "manager_options", excluding any that are
316 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
317 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
319 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
320 sset_find_and_delete(&targets, m->target);
322 sset_add(&targets, m->target);
326 /* Now extract the targets' IP addresses. */
327 if (!sset_is_empty(&targets)) {
330 managers = xmalloc(sset_count(&targets) * sizeof *managers);
331 SSET_FOR_EACH (target, &targets) {
332 struct sockaddr_in *sin = &managers[n_managers];
334 if ((!strncmp(target, "tcp:", 4)
335 && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) ||
336 (!strncmp(target, "ssl:", 4)
337 && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) {
342 sset_destroy(&targets);
344 *managersp = managers;
345 *n_managersp = n_managers;
349 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
351 struct sockaddr_in *managers;
352 struct bridge *br, *next;
353 int sflow_bridge_number;
356 COVERAGE_INC(bridge_reconfigure);
358 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
359 * iface"s according to 'ovs_cfg', with only very minimal configuration
362 * This is purely an update to bridge data structures. Nothing is pushed
363 * down to ofproto or lower layers. */
364 add_del_bridges(ovs_cfg);
365 HMAP_FOR_EACH (br, node, &all_bridges) {
366 bridge_add_del_ports(br);
369 /* Delete all datapaths and datapath ports that are no longer configured.
371 * The kernel will reject any attempt to add a given port to a datapath if
372 * that port already belongs to a different datapath, so we must do all
373 * port deletions before any port additions. A datapath always has a
374 * "local port" so we must delete not-configured datapaths too. */
375 bridge_del_ofprotos();
376 HMAP_FOR_EACH (br, node, &all_bridges) {
378 bridge_del_ofproto_ports(br);
382 /* Create datapaths and datapath ports that are missing.
384 * After this is done, we have our final set of bridges, ports, and
385 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
386 * has at least one iface, every "struct iface" has a valid ofp_port and
388 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
389 if (!br->ofproto && !bridge_add_ofprotos(br)) {
393 HMAP_FOR_EACH (br, node, &all_bridges) {
394 bridge_refresh_ofp_port(br);
395 bridge_add_ofproto_ports(br);
398 /* Complete the configuration. */
399 sflow_bridge_number = 0;
400 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
401 HMAP_FOR_EACH (br, node, &all_bridges) {
404 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
407 port_configure(port);
409 HMAP_FOR_EACH (iface, ofp_port_node, &br->ifaces) {
410 iface_configure_cfm(iface);
411 iface_configure_qos(iface, port->cfg->qos);
412 iface_set_mac(iface);
415 bridge_configure_mirrors(br);
416 bridge_configure_datapath_id(br);
417 bridge_configure_remotes(br, managers, n_managers);
418 bridge_configure_netflow(br);
419 bridge_configure_sflow(br, &sflow_bridge_number);
423 /* ovs-vswitchd has completed initialization, so allow the process that
424 * forked us to exit successfully. */
425 daemonize_complete();
428 /* Iterate over all ofprotos and delete any of them that do not have a
429 * configured bridge or that are the wrong type. */
431 bridge_del_ofprotos(void)
439 ofproto_enumerate_types(&types);
440 SSET_FOR_EACH (type, &types) {
443 ofproto_enumerate_names(type, &names);
444 SSET_FOR_EACH (name, &names) {
445 struct bridge *br = bridge_lookup(name);
446 if (!br || strcmp(type, br->type)) {
447 ofproto_delete(name, type);
451 sset_destroy(&names);
452 sset_destroy(&types);
456 bridge_add_ofprotos(struct bridge *br)
458 int error = ofproto_create(br->name, br->type, &br->ofproto);
460 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
467 port_configure(struct port *port)
469 const struct ovsrec_port *cfg = port->cfg;
470 struct bond_settings bond_settings;
471 struct lacp_settings lacp_settings;
472 struct ofproto_bundle_settings s;
480 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
481 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
482 s.slaves[s.n_slaves++] = iface->ofp_port;
488 if (list_is_short(&port->ifaces)) {
489 if (*cfg->tag >= 0 && *cfg->tag <= 4095) {
491 VLOG_DBG("port %s: assigning VLAN tag %d", port->name, s.vlan);
494 /* It's possible that bonded, VLAN-tagged ports make sense. Maybe
495 * they even work as-is. But they have not been tested. */
496 VLOG_WARN("port %s: VLAN tags not supported on bonded ports",
501 /* Get VLAN trunks. */
503 if (s.vlan < 0 && cfg->n_trunks) {
504 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
505 } else if (s.vlan >= 0 && cfg->n_trunks) {
506 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
510 /* Get LACP settings. */
511 s.lacp = port_configure_lacp(port, &lacp_settings);
515 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
516 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
517 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
520 s.lacp_slaves = NULL;
523 /* Get bond settings. */
524 if (s.n_slaves > 1) {
525 s.bond = &bond_settings;
526 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
527 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
530 s.bond_stable_ids = NULL;
534 ofproto_bundle_register(port->bridge->ofproto, port, &s);
539 free(s.bond_stable_ids);
542 /* Pick local port hardware address and datapath ID for 'br'. */
544 bridge_configure_datapath_id(struct bridge *br)
546 uint8_t ea[ETH_ADDR_LEN];
548 struct iface *local_iface;
549 struct iface *hw_addr_iface;
552 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
553 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
555 int error = netdev_set_etheraddr(local_iface->netdev, ea);
557 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
558 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
559 "Ethernet address: %s",
560 br->name, strerror(error));
563 memcpy(br->ea, ea, ETH_ADDR_LEN);
565 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
566 ofproto_set_datapath_id(br->ofproto, dpid);
568 dpid_string = xasprintf("%016"PRIx64, dpid);
569 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
573 /* Set NetFlow configuration on 'br'. */
575 bridge_configure_netflow(struct bridge *br)
577 struct ovsrec_netflow *cfg = br->cfg->netflow;
578 struct netflow_options opts;
581 ofproto_set_netflow(br->ofproto, NULL);
585 memset(&opts, 0, sizeof opts);
587 /* Get default NetFlow configuration from datapath.
588 * Apply overrides from 'cfg'. */
589 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
590 if (cfg->engine_type) {
591 opts.engine_type = *cfg->engine_type;
593 if (cfg->engine_id) {
594 opts.engine_id = *cfg->engine_id;
597 /* Configure active timeout interval. */
598 opts.active_timeout = cfg->active_timeout;
599 if (!opts.active_timeout) {
600 opts.active_timeout = -1;
601 } else if (opts.active_timeout < 0) {
602 VLOG_WARN("bridge %s: active timeout interval set to negative "
603 "value, using default instead (%d seconds)", br->name,
604 NF_ACTIVE_TIMEOUT_DEFAULT);
605 opts.active_timeout = -1;
608 /* Add engine ID to interface number to disambiguate bridgs? */
609 opts.add_id_to_iface = cfg->add_id_to_interface;
610 if (opts.add_id_to_iface) {
611 if (opts.engine_id > 0x7f) {
612 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
613 "another vswitch, choose an engine id less than 128",
616 if (hmap_count(&br->ports) > 508) {
617 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
618 "another port when more than 508 ports are used",
624 sset_init(&opts.collectors);
625 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
628 if (ofproto_set_netflow(br->ofproto, &opts)) {
629 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
631 sset_destroy(&opts.collectors);
634 /* Set sFlow configuration on 'br'. */
636 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
638 const struct ovsrec_sflow *cfg = br->cfg->sflow;
639 struct ovsrec_controller **controllers;
640 struct ofproto_sflow_options oso;
641 size_t n_controllers;
645 ofproto_set_sflow(br->ofproto, NULL);
649 memset(&oso, 0, sizeof oso);
651 sset_init(&oso.targets);
652 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
654 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
656 oso.sampling_rate = *cfg->sampling;
659 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
661 oso.polling_interval = *cfg->polling;
664 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
666 oso.header_len = *cfg->header;
669 oso.sub_id = (*sflow_bridge_number)++;
670 oso.agent_device = cfg->agent;
672 oso.control_ip = NULL;
673 n_controllers = bridge_get_controllers(br, &controllers);
674 for (i = 0; i < n_controllers; i++) {
675 if (controllers[i]->local_ip) {
676 oso.control_ip = controllers[i]->local_ip;
680 ofproto_set_sflow(br->ofproto, &oso);
682 sset_destroy(&oso.targets);
686 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
688 const struct port *port = port_lookup(br, name);
689 return port && port_is_bond_fake_iface(port);
693 port_is_bond_fake_iface(const struct port *port)
695 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
699 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
701 struct bridge *br, *next;
705 /* Collect new bridges' names and types. */
707 for (i = 0; i < cfg->n_bridges; i++) {
708 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
709 if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
710 VLOG_WARN("bridge %s specified twice", br_cfg->name);
714 /* Get rid of deleted bridges or those whose types have changed.
715 * Update 'cfg' of bridges that still exist. */
716 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
717 br->cfg = shash_find_data(&new_br, br->name);
718 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
719 br->cfg->datapath_type))) {
724 /* Add new bridges. */
725 for (i = 0; i < cfg->n_bridges; i++) {
726 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
727 struct bridge *br = bridge_lookup(br_cfg->name);
729 bridge_create(br_cfg);
733 shash_destroy(&new_br);
736 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
739 * The kernel will reject any attempt to add a given port to a datapath if that
740 * port already belongs to a different datapath, so we must do all port
741 * deletions before any port additions. */
743 bridge_del_ofproto_ports(struct bridge *br)
745 struct ofproto_port_dump dump;
746 struct ofproto_port ofproto_port;
748 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
749 const char *name = ofproto_port.name;
754 /* Ignore the local port. We can't change it anyhow. */
755 if (!strcmp(name, br->name)) {
759 /* Get the type that 'ofproto_port' should have (ordinarily the
760 * type of its corresponding iface) or NULL if it should be
762 iface = iface_lookup(br, name);
763 type = (iface ? iface->type
764 : bridge_has_bond_fake_iface(br, name) ? "internal"
767 /* If it's the wrong type then delete the ofproto port. */
769 && !strcmp(ofproto_port.type, type)
770 && (!iface || !iface->netdev
771 || !strcmp(netdev_get_type(iface->netdev), type))) {
774 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
776 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
777 br->name, name, strerror(error));
780 netdev_close(iface->netdev);
781 iface->netdev = NULL;
787 iface_set_ofp_port(struct iface *iface, int ofp_port)
789 struct bridge *br = iface->port->bridge;
791 assert(iface->ofp_port < 0 && ofp_port >= 0);
792 iface->ofp_port = ofp_port;
793 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
794 iface_set_ofport(iface->cfg, ofp_port);
798 bridge_refresh_ofp_port(struct bridge *br)
800 struct ofproto_port_dump dump;
801 struct ofproto_port ofproto_port;
804 /* Clear all the "ofp_port"es. */
805 hmap_clear(&br->ifaces);
806 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
809 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
810 iface->ofp_port = -1;
814 /* Obtain the correct "ofp_port"s from ofproto. */
815 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
816 struct iface *iface = iface_lookup(br, ofproto_port.name);
818 if (iface->ofp_port >= 0) {
819 VLOG_WARN("bridge %s: interface %s reported twice",
820 br->name, ofproto_port.name);
821 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
822 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
823 br->name, ofproto_port.ofp_port);
825 iface_set_ofp_port(iface, ofproto_port.ofp_port);
831 /* Add an ofproto port for any "struct iface" that doesn't have one.
832 * Delete any "struct iface" for which this fails.
833 * Delete any "struct port" that thereby ends up with no ifaces. */
835 bridge_add_ofproto_ports(struct bridge *br)
837 struct port *port, *next_port;
839 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
840 struct iface *iface, *next_iface;
841 struct ofproto_port ofproto_port;
843 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
847 /* Open the netdev or reconfigure it. */
849 shash_from_ovs_idl_map(iface->cfg->key_options,
850 iface->cfg->value_options,
851 iface->cfg->n_options, &args);
852 if (!iface->netdev) {
853 struct netdev_options options;
854 options.name = iface->name;
855 options.type = iface->type;
856 options.args = &args;
857 options.ethertype = NETDEV_ETH_TYPE_NONE;
858 error = netdev_open(&options, &iface->netdev);
860 error = netdev_set_config(iface->netdev, &args);
862 shash_destroy(&args);
864 VLOG_WARN("could not %s network device %s (%s)",
865 iface->netdev ? "reconfigure" : "open",
866 iface->name, strerror(error));
869 /* Add the port, if necessary. */
870 if (iface->netdev && iface->ofp_port < 0) {
874 error = ofproto_port_add(br->ofproto, iface->netdev,
877 iface_set_ofp_port(iface, ofp_port);
879 netdev_close(iface->netdev);
880 iface->netdev = NULL;
884 /* Delete the iface if */
885 if (iface->netdev && iface->ofp_port >= 0) {
886 VLOG_DBG("bridge %s: interface %s is on port %d",
887 br->name, iface->name, iface->ofp_port);
890 VLOG_ERR("bridge %s: missing %s interface, dropping",
891 br->name, iface->name);
893 /* We already reported a related error, don't bother
896 iface_set_ofport(iface->cfg, -1);
897 iface_destroy(iface);
900 if (list_is_empty(&port->ifaces)) {
901 VLOG_WARN("%s port has no interfaces, dropping", port->name);
906 /* Add bond fake iface if necessary. */
907 if (port_is_bond_fake_iface(port)) {
908 if (ofproto_port_query_by_name(br->ofproto, port->name,
910 struct netdev_options options;
911 struct netdev *netdev;
914 options.name = port->name;
915 options.type = "internal";
917 options.ethertype = NETDEV_ETH_TYPE_NONE;
918 error = netdev_open(&options, &netdev);
920 ofproto_port_add(br->ofproto, netdev, NULL);
921 netdev_close(netdev);
923 VLOG_WARN("could not open network device %s (%s)",
924 port->name, strerror(error));
927 /* Already exists, nothing to do. */
928 ofproto_port_destroy(&ofproto_port);
935 get_ovsrec_key_value(const struct ovsdb_idl_row *row,
936 const struct ovsdb_idl_column *column,
939 const struct ovsdb_datum *datum;
940 union ovsdb_atom atom;
943 datum = ovsdb_idl_get(row, column, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING);
944 atom.string = (char *) key;
945 idx = ovsdb_datum_find_key(datum, &atom, OVSDB_TYPE_STRING);
946 return idx == UINT_MAX ? NULL : datum->values[idx].string;
950 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
952 return get_ovsrec_key_value(&br_cfg->header_,
953 &ovsrec_bridge_col_other_config, key);
957 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
958 struct iface **hw_addr_iface)
964 *hw_addr_iface = NULL;
966 /* Did the user request a particular MAC? */
967 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
968 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
969 if (eth_addr_is_multicast(ea)) {
970 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
971 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
972 } else if (eth_addr_is_zero(ea)) {
973 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
979 /* Otherwise choose the minimum non-local MAC address among all of the
981 memset(ea, 0xff, ETH_ADDR_LEN);
982 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
983 uint8_t iface_ea[ETH_ADDR_LEN];
984 struct iface *candidate;
987 /* Mirror output ports don't participate. */
988 if (ofproto_is_mirror_output_bundle(br->ofproto, port)) {
992 /* Choose the MAC address to represent the port. */
994 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
995 /* Find the interface with this Ethernet address (if any) so that
996 * we can provide the correct devname to the caller. */
997 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
998 uint8_t candidate_ea[ETH_ADDR_LEN];
999 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1000 && eth_addr_equals(iface_ea, candidate_ea)) {
1005 /* Choose the interface whose MAC address will represent the port.
1006 * The Linux kernel bonding code always chooses the MAC address of
1007 * the first slave added to a bond, and the Fedora networking
1008 * scripts always add slaves to a bond in alphabetical order, so
1009 * for compatibility we choose the interface with the name that is
1010 * first in alphabetical order. */
1011 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1012 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1017 /* The local port doesn't count (since we're trying to choose its
1018 * MAC address anyway). */
1019 if (iface->ofp_port == OFPP_LOCAL) {
1024 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1026 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1027 VLOG_ERR_RL(&rl, "failed to obtain Ethernet address of %s: %s",
1028 iface->name, strerror(error));
1033 /* Compare against our current choice. */
1034 if (!eth_addr_is_multicast(iface_ea) &&
1035 !eth_addr_is_local(iface_ea) &&
1036 !eth_addr_is_reserved(iface_ea) &&
1037 !eth_addr_is_zero(iface_ea) &&
1038 eth_addr_compare_3way(iface_ea, ea) < 0)
1040 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1041 *hw_addr_iface = iface;
1044 if (eth_addr_is_multicast(ea)) {
1045 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1046 *hw_addr_iface = NULL;
1047 VLOG_WARN("bridge %s: using default bridge Ethernet "
1048 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1050 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1051 br->name, ETH_ADDR_ARGS(ea));
1055 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1056 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1057 * an interface on 'br', then that interface must be passed in as
1058 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1059 * 'hw_addr_iface' must be passed in as a null pointer. */
1061 bridge_pick_datapath_id(struct bridge *br,
1062 const uint8_t bridge_ea[ETH_ADDR_LEN],
1063 struct iface *hw_addr_iface)
1066 * The procedure for choosing a bridge MAC address will, in the most
1067 * ordinary case, also choose a unique MAC that we can use as a datapath
1068 * ID. In some special cases, though, multiple bridges will end up with
1069 * the same MAC address. This is OK for the bridges, but it will confuse
1070 * the OpenFlow controller, because each datapath needs a unique datapath
1073 * Datapath IDs must be unique. It is also very desirable that they be
1074 * stable from one run to the next, so that policy set on a datapath
1077 const char *datapath_id;
1080 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1081 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1085 if (hw_addr_iface) {
1087 if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) {
1089 * A bridge whose MAC address is taken from a VLAN network device
1090 * (that is, a network device created with vconfig(8) or similar
1091 * tool) will have the same MAC address as a bridge on the VLAN
1092 * device's physical network device.
1094 * Handle this case by hashing the physical network device MAC
1095 * along with the VLAN identifier.
1097 uint8_t buf[ETH_ADDR_LEN + 2];
1098 memcpy(buf, bridge_ea, ETH_ADDR_LEN);
1099 buf[ETH_ADDR_LEN] = vlan >> 8;
1100 buf[ETH_ADDR_LEN + 1] = vlan;
1101 return dpid_from_hash(buf, sizeof buf);
1104 * Assume that this bridge's MAC address is unique, since it
1105 * doesn't fit any of the cases we handle specially.
1110 * A purely internal bridge, that is, one that has no non-virtual
1111 * network devices on it at all, is more difficult because it has no
1112 * natural unique identifier at all.
1114 * When the host is a XenServer, we handle this case by hashing the
1115 * host's UUID with the name of the bridge. Names of bridges are
1116 * persistent across XenServer reboots, although they can be reused if
1117 * an internal network is destroyed and then a new one is later
1118 * created, so this is fairly effective.
1120 * When the host is not a XenServer, we punt by using a random MAC
1121 * address on each run.
1123 const char *host_uuid = xenserver_get_host_uuid();
1125 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1126 dpid = dpid_from_hash(combined, strlen(combined));
1132 return eth_addr_to_uint64(bridge_ea);
1136 dpid_from_hash(const void *data, size_t n)
1138 uint8_t hash[SHA1_DIGEST_SIZE];
1140 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1141 sha1_bytes(data, n, hash);
1142 eth_addr_mark_random(hash);
1143 return eth_addr_to_uint64(hash);
1147 iface_refresh_status(struct iface *iface)
1151 enum netdev_flags flags;
1158 if (iface_is_synthetic(iface)) {
1164 if (!netdev_get_status(iface->netdev, &sh)) {
1166 char **keys, **values;
1168 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1169 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1174 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1177 shash_destroy_free_data(&sh);
1179 error = netdev_get_flags(iface->netdev, &flags);
1181 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1184 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1187 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1189 ovsrec_interface_set_duplex(iface->cfg,
1190 netdev_features_is_full_duplex(current)
1192 /* warning: uint64_t -> int64_t conversion */
1193 bps = netdev_features_to_bps(current);
1194 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1197 ovsrec_interface_set_duplex(iface->cfg, NULL);
1198 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1201 ovsrec_interface_set_link_state(iface->cfg,
1202 iface_get_carrier(iface) ? "up" : "down");
1204 error = netdev_get_mtu(iface->netdev, &mtu);
1205 if (!error && mtu != INT_MAX) {
1207 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1210 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1214 /* Writes 'iface''s CFM statistics to the database. Returns true if anything
1215 * changed, false otherwise. */
1217 iface_refresh_cfm_stats(struct iface *iface)
1219 const struct ovsrec_monitor *mon;
1220 const struct cfm *cfm;
1221 bool changed = false;
1224 mon = iface->cfg->monitor;
1225 cfm = ofproto_port_get_cfm(iface->port->bridge->ofproto, iface->ofp_port);
1231 for (i = 0; i < mon->n_remote_mps; i++) {
1232 const struct ovsrec_maintenance_point *mp;
1233 const struct remote_mp *rmp;
1235 mp = mon->remote_mps[i];
1236 rmp = cfm_get_remote_mp(cfm, mp->mpid);
1238 if (mp->n_fault != 1 || mp->fault[0] != rmp->fault) {
1239 ovsrec_maintenance_point_set_fault(mp, &rmp->fault, 1);
1244 if (mon->n_fault != 1 || mon->fault[0] != cfm->fault) {
1245 ovsrec_monitor_set_fault(mon, &cfm->fault, 1);
1253 iface_refresh_lacp_stats(struct iface *iface)
1255 struct ofproto *ofproto = iface->port->bridge->ofproto;
1256 int old = iface->cfg->lacp_current ? *iface->cfg->lacp_current : -1;
1257 int new = ofproto_port_is_lacp_current(ofproto, iface->ofp_port);
1261 ovsrec_interface_set_lacp_current(iface->cfg, ¤t, new >= 0);
1267 iface_refresh_stats(struct iface *iface)
1273 static const struct iface_stat iface_stats[] = {
1274 { "rx_packets", offsetof(struct netdev_stats, rx_packets) },
1275 { "tx_packets", offsetof(struct netdev_stats, tx_packets) },
1276 { "rx_bytes", offsetof(struct netdev_stats, rx_bytes) },
1277 { "tx_bytes", offsetof(struct netdev_stats, tx_bytes) },
1278 { "rx_dropped", offsetof(struct netdev_stats, rx_dropped) },
1279 { "tx_dropped", offsetof(struct netdev_stats, tx_dropped) },
1280 { "rx_errors", offsetof(struct netdev_stats, rx_errors) },
1281 { "tx_errors", offsetof(struct netdev_stats, tx_errors) },
1282 { "rx_frame_err", offsetof(struct netdev_stats, rx_frame_errors) },
1283 { "rx_over_err", offsetof(struct netdev_stats, rx_over_errors) },
1284 { "rx_crc_err", offsetof(struct netdev_stats, rx_crc_errors) },
1285 { "collisions", offsetof(struct netdev_stats, collisions) },
1287 enum { N_STATS = ARRAY_SIZE(iface_stats) };
1288 const struct iface_stat *s;
1290 char *keys[N_STATS];
1291 int64_t values[N_STATS];
1294 struct netdev_stats stats;
1296 if (iface_is_synthetic(iface)) {
1300 /* Intentionally ignore return value, since errors will set 'stats' to
1301 * all-1s, and we will deal with that correctly below. */
1302 netdev_get_stats(iface->netdev, &stats);
1305 for (s = iface_stats; s < &iface_stats[N_STATS]; s++) {
1306 uint64_t value = *(uint64_t *) (((char *) &stats) + s->offset);
1307 if (value != UINT64_MAX) {
1314 ovsrec_interface_set_statistics(iface->cfg, keys, values, n);
1318 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1320 struct ovsdb_datum datum;
1324 get_system_stats(&stats);
1326 ovsdb_datum_from_shash(&datum, &stats);
1327 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1331 static inline const char *
1332 nx_role_to_str(enum nx_role role)
1337 case NX_ROLE_MASTER:
1342 return "*** INVALID ROLE ***";
1347 bridge_refresh_controller_status(const struct bridge *br)
1350 const struct ovsrec_controller *cfg;
1352 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1354 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1355 struct ofproto_controller_info *cinfo =
1356 shash_find_data(&info, cfg->target);
1359 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1360 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1361 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1362 (char **) cinfo->pairs.values,
1365 ovsrec_controller_set_is_connected(cfg, false);
1366 ovsrec_controller_set_role(cfg, NULL);
1367 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1371 ofproto_free_ofproto_controller_info(&info);
1377 const struct ovsrec_open_vswitch *cfg;
1379 bool datapath_destroyed;
1380 bool database_changed;
1383 /* Let each bridge do the work that it needs to do. */
1384 datapath_destroyed = false;
1385 HMAP_FOR_EACH (br, node, &all_bridges) {
1386 int error = ofproto_run(br->ofproto);
1388 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1389 VLOG_ERR_RL(&rl, "bridge %s: datapath was destroyed externally, "
1390 "forcing reconfiguration", br->name);
1391 datapath_destroyed = true;
1395 /* (Re)configure if necessary. */
1396 database_changed = ovsdb_idl_run(idl);
1397 cfg = ovsrec_open_vswitch_first(idl);
1399 /* Re-configure SSL. We do this on every trip through the main loop,
1400 * instead of just when the database changes, because the contents of the
1401 * key and certificate files can change without the database changing.
1403 * We do this before bridge_reconfigure() because that function might
1404 * initiate SSL connections and thus requires SSL to be configured. */
1405 if (cfg && cfg->ssl) {
1406 const struct ovsrec_ssl *ssl = cfg->ssl;
1408 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1409 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1412 if (database_changed || datapath_destroyed) {
1414 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1416 bridge_reconfigure(cfg);
1418 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1419 ovsdb_idl_txn_commit(txn);
1420 ovsdb_idl_txn_destroy(txn); /* XXX */
1422 /* We still need to reconfigure to avoid dangling pointers to
1423 * now-destroyed ovsrec structures inside bridge data. */
1424 static const struct ovsrec_open_vswitch null_cfg;
1426 bridge_reconfigure(&null_cfg);
1430 /* Refresh system and interface stats if necessary. */
1431 if (time_msec() >= stats_timer) {
1433 struct ovsdb_idl_txn *txn;
1435 txn = ovsdb_idl_txn_create(idl);
1436 HMAP_FOR_EACH (br, node, &all_bridges) {
1439 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1440 struct iface *iface;
1442 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1443 iface_refresh_stats(iface);
1444 iface_refresh_status(iface);
1447 bridge_refresh_controller_status(br);
1449 refresh_system_stats(cfg);
1450 ovsdb_idl_txn_commit(txn);
1451 ovsdb_idl_txn_destroy(txn); /* XXX */
1454 stats_timer = time_msec() + STATS_INTERVAL;
1457 if (time_msec() >= db_limiter) {
1458 struct ovsdb_idl_txn *txn;
1459 bool changed = false;
1461 txn = ovsdb_idl_txn_create(idl);
1462 HMAP_FOR_EACH (br, node, &all_bridges) {
1465 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1466 struct iface *iface;
1468 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1469 changed = iface_refresh_cfm_stats(iface) || changed;
1470 changed = iface_refresh_lacp_stats(iface) || changed;
1476 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1479 ovsdb_idl_txn_commit(txn);
1480 ovsdb_idl_txn_destroy(txn);
1489 HMAP_FOR_EACH (br, node, &all_bridges) {
1490 ofproto_wait(br->ofproto);
1492 ovsdb_idl_wait(idl);
1493 poll_timer_wait_until(stats_timer);
1495 if (db_limiter > time_msec()) {
1496 poll_timer_wait_until(db_limiter);
1500 /* CFM unixctl user interface functions. */
1502 cfm_unixctl_show(struct unixctl_conn *conn,
1503 const char *args, void *aux OVS_UNUSED)
1505 struct ds ds = DS_EMPTY_INITIALIZER;
1506 struct iface *iface;
1507 const struct cfm *cfm;
1509 iface = iface_find(args);
1511 unixctl_command_reply(conn, 501, "no such interface");
1515 cfm = ofproto_port_get_cfm(iface->port->bridge->ofproto, iface->ofp_port);
1518 unixctl_command_reply(conn, 501, "CFM not enabled");
1522 cfm_dump_ds(cfm, &ds);
1523 unixctl_command_reply(conn, 200, ds_cstr(&ds));
1527 /* QoS unixctl user interface functions. */
1529 struct qos_unixctl_show_cbdata {
1531 struct iface *iface;
1535 qos_unixctl_show_cb(unsigned int queue_id,
1536 const struct shash *details,
1539 struct qos_unixctl_show_cbdata *data = aux;
1540 struct ds *ds = data->ds;
1541 struct iface *iface = data->iface;
1542 struct netdev_queue_stats stats;
1543 struct shash_node *node;
1546 ds_put_cstr(ds, "\n");
1548 ds_put_format(ds, "Queue %u:\n", queue_id);
1550 ds_put_cstr(ds, "Default:\n");
1553 SHASH_FOR_EACH (node, details) {
1554 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
1557 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
1559 if (stats.tx_packets != UINT64_MAX) {
1560 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
1563 if (stats.tx_bytes != UINT64_MAX) {
1564 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
1567 if (stats.tx_errors != UINT64_MAX) {
1568 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
1571 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
1572 queue_id, strerror(error));
1577 qos_unixctl_show(struct unixctl_conn *conn,
1578 const char *args, void *aux OVS_UNUSED)
1580 struct ds ds = DS_EMPTY_INITIALIZER;
1581 struct shash sh = SHASH_INITIALIZER(&sh);
1582 struct iface *iface;
1584 struct shash_node *node;
1585 struct qos_unixctl_show_cbdata data;
1588 iface = iface_find(args);
1590 unixctl_command_reply(conn, 501, "no such interface");
1594 netdev_get_qos(iface->netdev, &type, &sh);
1596 if (*type != '\0') {
1597 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
1599 SHASH_FOR_EACH (node, &sh) {
1600 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
1605 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
1608 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
1610 unixctl_command_reply(conn, 200, ds_cstr(&ds));
1612 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
1613 unixctl_command_reply(conn, 501, ds_cstr(&ds));
1616 shash_destroy_free_data(&sh);
1620 /* Bridge reconfiguration functions. */
1622 bridge_create(const struct ovsrec_bridge *br_cfg)
1626 assert(!bridge_lookup(br_cfg->name));
1627 br = xzalloc(sizeof *br);
1629 br->name = xstrdup(br_cfg->name);
1630 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
1633 /* Derive the default Ethernet address from the bridge's UUID. This should
1634 * be unique and it will be stable between ovs-vswitchd runs. */
1635 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
1636 eth_addr_mark_random(br->default_ea);
1638 hmap_init(&br->ports);
1639 hmap_init(&br->ifaces);
1640 hmap_init(&br->iface_by_name);
1641 hmap_init(&br->mirrors);
1643 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
1647 bridge_destroy(struct bridge *br)
1650 struct mirror *mirror, *next_mirror;
1651 struct port *port, *next_port;
1653 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1656 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
1657 mirror_destroy(mirror);
1659 hmap_remove(&all_bridges, &br->node);
1660 ofproto_destroy(br->ofproto);
1661 hmap_destroy(&br->ifaces);
1662 hmap_destroy(&br->ports);
1663 hmap_destroy(&br->iface_by_name);
1664 hmap_destroy(&br->mirrors);
1671 static struct bridge *
1672 bridge_lookup(const char *name)
1676 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
1677 if (!strcmp(br->name, name)) {
1684 /* Handle requests for a listing of all flows known by the OpenFlow
1685 * stack, including those normally hidden. */
1687 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
1688 const char *args, void *aux OVS_UNUSED)
1693 br = bridge_lookup(args);
1695 unixctl_command_reply(conn, 501, "Unknown bridge");
1700 ofproto_get_all_flows(br->ofproto, &results);
1702 unixctl_command_reply(conn, 200, ds_cstr(&results));
1703 ds_destroy(&results);
1706 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
1707 * connections and reconnect. If BRIDGE is not specified, then all bridges
1708 * drop their controller connections and reconnect. */
1710 bridge_unixctl_reconnect(struct unixctl_conn *conn,
1711 const char *args, void *aux OVS_UNUSED)
1714 if (args[0] != '\0') {
1715 br = bridge_lookup(args);
1717 unixctl_command_reply(conn, 501, "Unknown bridge");
1720 ofproto_reconnect_controllers(br->ofproto);
1722 HMAP_FOR_EACH (br, node, &all_bridges) {
1723 ofproto_reconnect_controllers(br->ofproto);
1726 unixctl_command_reply(conn, 200, NULL);
1730 bridge_get_controllers(const struct bridge *br,
1731 struct ovsrec_controller ***controllersp)
1733 struct ovsrec_controller **controllers;
1734 size_t n_controllers;
1736 controllers = br->cfg->controller;
1737 n_controllers = br->cfg->n_controller;
1739 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
1745 *controllersp = controllers;
1747 return n_controllers;
1750 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
1751 * those configured in 'br->cfg'. */
1753 bridge_add_del_ports(struct bridge *br)
1755 struct port *port, *next;
1756 struct shash_node *node;
1757 struct shash new_ports;
1760 /* Collect new ports. */
1761 shash_init(&new_ports);
1762 for (i = 0; i < br->cfg->n_ports; i++) {
1763 const char *name = br->cfg->ports[i]->name;
1764 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
1765 VLOG_WARN("bridge %s: %s specified twice as bridge port",
1769 if (bridge_get_controllers(br, NULL)
1770 && !shash_find(&new_ports, br->name)) {
1771 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
1772 br->name, br->name);
1774 br->synth_local_port.interfaces = &br->synth_local_ifacep;
1775 br->synth_local_port.n_interfaces = 1;
1776 br->synth_local_port.name = br->name;
1778 br->synth_local_iface.name = br->name;
1779 br->synth_local_iface.type = "internal";
1781 br->synth_local_ifacep = &br->synth_local_iface;
1783 shash_add(&new_ports, br->name, &br->synth_local_port);
1786 /* Get rid of deleted ports.
1787 * Get rid of deleted interfaces on ports that still exist.
1788 * Update 'cfg' of ports that still exist. */
1789 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
1790 port->cfg = shash_find_data(&new_ports, port->name);
1794 port_del_ifaces(port);
1798 /* Create new ports.
1799 * Add new interfaces to existing ports. */
1800 SHASH_FOR_EACH (node, &new_ports) {
1801 struct port *port = port_lookup(br, node->name);
1803 struct ovsrec_port *cfg = node->data;
1804 port = port_create(br, cfg);
1806 port_add_ifaces(port);
1807 if (list_is_empty(&port->ifaces)) {
1808 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
1809 br->name, port->name);
1813 shash_destroy(&new_ports);
1816 /* Initializes 'oc' appropriately as a management service controller for
1819 * The caller must free oc->target when it is no longer needed. */
1821 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
1822 struct ofproto_controller *oc)
1824 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
1825 oc->max_backoff = 0;
1826 oc->probe_interval = 60;
1827 oc->band = OFPROTO_OUT_OF_BAND;
1829 oc->burst_limit = 0;
1832 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
1834 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
1835 struct ofproto_controller *oc)
1837 oc->target = c->target;
1838 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
1839 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
1840 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
1841 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
1842 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
1843 oc->burst_limit = (c->controller_burst_limit
1844 ? *c->controller_burst_limit : 0);
1847 /* Configures the IP stack for 'br''s local interface properly according to the
1848 * configuration in 'c'. */
1850 bridge_configure_local_iface_netdev(struct bridge *br,
1851 struct ovsrec_controller *c)
1853 struct netdev *netdev;
1854 struct in_addr mask, gateway;
1856 struct iface *local_iface;
1859 /* If there's no local interface or no IP address, give up. */
1860 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
1861 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
1865 /* Bring up the local interface. */
1866 netdev = local_iface->netdev;
1867 netdev_turn_flags_on(netdev, NETDEV_UP, true);
1869 /* Configure the IP address and netmask. */
1870 if (!c->local_netmask
1871 || !inet_aton(c->local_netmask, &mask)
1873 mask.s_addr = guess_netmask(ip.s_addr);
1875 if (!netdev_set_in4(netdev, ip, mask)) {
1876 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
1877 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
1880 /* Configure the default gateway. */
1881 if (c->local_gateway
1882 && inet_aton(c->local_gateway, &gateway)
1883 && gateway.s_addr) {
1884 if (!netdev_add_router(netdev, gateway)) {
1885 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
1886 br->name, IP_ARGS(&gateway.s_addr));
1892 bridge_configure_remotes(struct bridge *br,
1893 const struct sockaddr_in *managers, size_t n_managers)
1895 const char *disable_ib_str, *queue_id_str;
1896 bool disable_in_band = false;
1899 struct ovsrec_controller **controllers;
1900 size_t n_controllers;
1902 enum ofproto_fail_mode fail_mode;
1904 struct ofproto_controller *ocs;
1908 /* Check if we should disable in-band control on this bridge. */
1909 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
1910 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
1911 disable_in_band = true;
1914 /* Set OpenFlow queue ID for in-band control. */
1915 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
1916 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
1917 ofproto_set_in_band_queue(br->ofproto, queue_id);
1919 if (disable_in_band) {
1920 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
1922 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
1925 n_controllers = bridge_get_controllers(br, &controllers);
1927 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
1930 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
1931 for (i = 0; i < n_controllers; i++) {
1932 struct ovsrec_controller *c = controllers[i];
1934 if (!strncmp(c->target, "punix:", 6)
1935 || !strncmp(c->target, "unix:", 5)) {
1936 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1938 /* Prevent remote ovsdb-server users from accessing arbitrary Unix
1939 * domain sockets and overwriting arbitrary local files. */
1940 VLOG_ERR_RL(&rl, "bridge %s: not adding Unix domain socket "
1941 "controller \"%s\" due to possibility for remote "
1942 "exploit", br->name, c->target);
1946 bridge_configure_local_iface_netdev(br, c);
1947 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
1948 if (disable_in_band) {
1949 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
1954 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
1955 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
1958 /* Set the fail-mode. */
1959 fail_mode = !br->cfg->fail_mode
1960 || !strcmp(br->cfg->fail_mode, "standalone")
1961 ? OFPROTO_FAIL_STANDALONE
1962 : OFPROTO_FAIL_SECURE;
1963 ofproto_set_fail_mode(br->ofproto, fail_mode);
1965 /* Configure OpenFlow controller connection snooping. */
1966 if (!ofproto_has_snoops(br->ofproto)) {
1970 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
1971 ovs_rundir(), br->name));
1972 ofproto_set_snoops(br->ofproto, &snoops);
1973 sset_destroy(&snoops);
1977 /* Port functions. */
1979 static struct port *
1980 port_create(struct bridge *br, const struct ovsrec_port *cfg)
1984 port = xzalloc(sizeof *port);
1986 port->name = xstrdup(cfg->name);
1988 list_init(&port->ifaces);
1990 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
1992 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
1998 get_port_other_config(const struct ovsrec_port *port, const char *key,
1999 const char *default_value)
2003 value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
2005 return value ? value : default_value;
2009 get_interface_other_config(const struct ovsrec_interface *iface,
2010 const char *key, const char *default_value)
2014 value = get_ovsrec_key_value(&iface->header_,
2015 &ovsrec_interface_col_other_config, key);
2016 return value ? value : default_value;
2019 /* Deletes interfaces from 'port' that are no longer configured for it. */
2021 port_del_ifaces(struct port *port)
2023 struct iface *iface, *next;
2024 struct sset new_ifaces;
2027 /* Collect list of new interfaces. */
2028 sset_init(&new_ifaces);
2029 for (i = 0; i < port->cfg->n_interfaces; i++) {
2030 const char *name = port->cfg->interfaces[i]->name;
2031 const char *type = port->cfg->interfaces[i]->name;
2032 if (strcmp(type, "null")) {
2033 sset_add(&new_ifaces, name);
2037 /* Get rid of deleted interfaces. */
2038 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2039 if (!sset_contains(&new_ifaces, iface->name)) {
2040 iface_destroy(iface);
2044 sset_destroy(&new_ifaces);
2047 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2050 port_add_ifaces(struct port *port)
2052 struct shash new_ifaces;
2053 struct shash_node *node;
2056 /* Collect new ifaces. */
2057 shash_init(&new_ifaces);
2058 for (i = 0; i < port->cfg->n_interfaces; i++) {
2059 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2060 if (strcmp(cfg->type, "null")
2061 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2062 VLOG_WARN("port %s: %s specified twice as port interface",
2063 port->name, cfg->name);
2064 iface_set_ofport(cfg, -1);
2068 /* Create new interfaces.
2069 * Update interface types and 'cfg' members. */
2070 SHASH_FOR_EACH (node, &new_ifaces) {
2071 const struct ovsrec_interface *cfg = node->data;
2072 const char *iface_name = node->name;
2073 struct iface *iface;
2075 iface = iface_lookup(port->bridge, iface_name);
2077 iface = iface_create(port, cfg);
2082 /* Determine interface type. The local port always has type
2083 * "internal". Other ports take their type from the database and
2084 * default to "system" if none is specified. */
2085 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2086 : cfg->type[0] ? cfg->type
2089 shash_destroy(&new_ifaces);
2093 port_destroy(struct port *port)
2096 struct bridge *br = port->bridge;
2097 struct iface *iface, *next;
2100 ofproto_bundle_unregister(br->ofproto, port);
2103 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2104 iface_destroy(iface);
2107 hmap_remove(&br->ports, &port->hmap_node);
2109 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2116 static struct port *
2117 port_lookup(const struct bridge *br, const char *name)
2121 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2123 if (!strcmp(port->name, name)) {
2131 enable_lacp(struct port *port, bool *activep)
2133 if (!port->cfg->lacp) {
2134 /* XXX when LACP implementation has been sufficiently tested, enable by
2135 * default and make active on bonded ports. */
2137 } else if (!strcmp(port->cfg->lacp, "off")) {
2139 } else if (!strcmp(port->cfg->lacp, "active")) {
2142 } else if (!strcmp(port->cfg->lacp, "passive")) {
2146 VLOG_WARN("port %s: unknown LACP mode %s",
2147 port->name, port->cfg->lacp);
2152 static struct lacp_settings *
2153 port_configure_lacp(struct port *port, struct lacp_settings *s)
2155 const char *lacp_time;
2156 long long int custom_time;
2159 if (!enable_lacp(port, &s->active)) {
2163 s->name = port->name;
2164 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2166 /* Prefer bondable links if unspecified. */
2167 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2169 s->priority = (priority > 0 && priority <= UINT16_MAX
2171 : UINT16_MAX - !list_is_short(&port->ifaces));
2173 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2178 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2179 custom_time = atoi(lacp_time);
2180 if (!strcmp(lacp_time, "fast")) {
2181 s->lacp_time = LACP_TIME_FAST;
2182 } else if (!strcmp(lacp_time, "slow")) {
2183 s->lacp_time = LACP_TIME_SLOW;
2184 } else if (custom_time > 0) {
2185 s->lacp_time = LACP_TIME_CUSTOM;
2186 s->custom_time = custom_time;
2188 s->lacp_time = LACP_TIME_SLOW;
2195 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2197 int priority, portid, key;
2199 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2200 priority = atoi(get_interface_other_config(iface->cfg,
2201 "lacp-port-priority", "0"));
2202 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2205 if (portid <= 0 || portid > UINT16_MAX) {
2206 portid = iface->ofp_port;
2209 if (priority <= 0 || priority > UINT16_MAX) {
2210 priority = UINT16_MAX;
2213 if (key < 0 || key > UINT16_MAX) {
2217 s->name = iface->name;
2219 s->priority = priority;
2224 port_configure_bond(struct port *port, struct bond_settings *s,
2225 uint32_t *bond_stable_ids)
2227 const char *detect_s;
2228 struct iface *iface;
2231 s->name = port->name;
2232 s->balance = BM_SLB;
2233 if (port->cfg->bond_mode
2234 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2235 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2236 port->name, port->cfg->bond_mode,
2237 bond_mode_to_string(s->balance));
2240 s->detect = BLSM_CARRIER;
2241 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", NULL);
2242 if (detect_s && !bond_detect_mode_from_string(&s->detect, detect_s)) {
2243 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2245 port->name, detect_s, bond_detect_mode_to_string(s->detect));
2248 s->miimon_interval = atoi(
2249 get_port_other_config(port->cfg, "bond-miimon-interval", "200"));
2250 if (s->miimon_interval < 100) {
2251 s->miimon_interval = 100;
2254 s->up_delay = MAX(0, port->cfg->bond_updelay);
2255 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2256 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2257 s->rebalance_interval = atoi(
2258 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2259 if (s->rebalance_interval < 1000) {
2260 s->rebalance_interval = 1000;
2263 s->fake_iface = port->cfg->bond_fake_iface;
2266 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2267 long long stable_id;
2269 stable_id = atoll(get_interface_other_config(iface->cfg,
2270 "bond-stable-id", "0"));
2271 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2272 stable_id = iface->ofp_port;
2274 bond_stable_ids[i++] = stable_id;
2278 /* Interface functions. */
2280 static struct iface *
2281 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2283 struct bridge *br = port->bridge;
2284 struct iface *iface;
2285 char *name = if_cfg->name;
2287 iface = xzalloc(sizeof *iface);
2289 iface->name = xstrdup(name);
2290 iface->ofp_port = -1;
2291 iface->tag = tag_create_random();
2292 iface->netdev = NULL;
2293 iface->cfg = if_cfg;
2295 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2297 list_push_back(&port->ifaces, &iface->port_elem);
2299 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2305 iface_destroy(struct iface *iface)
2308 struct port *port = iface->port;
2309 struct bridge *br = port->bridge;
2311 if (br->ofproto && iface->ofp_port >= 0) {
2312 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2315 if (iface->ofp_port >= 0) {
2316 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2319 list_remove(&iface->port_elem);
2320 hmap_remove(&br->iface_by_name, &iface->name_node);
2322 netdev_close(iface->netdev);
2329 static struct iface *
2330 iface_lookup(const struct bridge *br, const char *name)
2332 struct iface *iface;
2334 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2335 &br->iface_by_name) {
2336 if (!strcmp(iface->name, name)) {
2344 static struct iface *
2345 iface_find(const char *name)
2347 const struct bridge *br;
2349 HMAP_FOR_EACH (br, node, &all_bridges) {
2350 struct iface *iface = iface_lookup(br, name);
2359 static struct iface *
2360 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2362 struct iface *iface;
2364 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2365 hash_int(ofp_port, 0), &br->ifaces) {
2366 if (iface->ofp_port == ofp_port) {
2373 /* Set Ethernet address of 'iface', if one is specified in the configuration
2376 iface_set_mac(struct iface *iface)
2378 uint8_t ea[ETH_ADDR_LEN];
2380 if (!strcmp(iface->type, "internal")
2381 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2382 if (iface->ofp_port == OFPP_LOCAL) {
2383 VLOG_ERR("interface %s: ignoring mac in Interface record "
2384 "(use Bridge record to set local port's mac)",
2386 } else if (eth_addr_is_multicast(ea)) {
2387 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2390 int error = netdev_set_etheraddr(iface->netdev, ea);
2392 VLOG_ERR("interface %s: setting MAC failed (%s)",
2393 iface->name, strerror(error));
2399 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2401 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2403 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2404 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2408 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2410 * The value strings in '*shash' are taken directly from values[], not copied,
2411 * so the caller should not modify or free them. */
2413 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2414 struct shash *shash)
2419 for (i = 0; i < n; i++) {
2420 shash_add(shash, keys[i], values[i]);
2424 /* Creates 'keys' and 'values' arrays from 'shash'.
2426 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2427 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2428 * are populated with with strings taken directly from 'shash' and thus have
2429 * the same ownership of the key-value pairs in shash.
2432 shash_to_ovs_idl_map(struct shash *shash,
2433 char ***keys, char ***values, size_t *n)
2437 struct shash_node *sn;
2439 count = shash_count(shash);
2441 k = xmalloc(count * sizeof *k);
2442 v = xmalloc(count * sizeof *v);
2445 SHASH_FOR_EACH(sn, shash) {
2456 struct iface_delete_queues_cbdata {
2457 struct netdev *netdev;
2458 const struct ovsdb_datum *queues;
2462 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2464 union ovsdb_atom atom;
2466 atom.integer = target;
2467 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2471 iface_delete_queues(unsigned int queue_id,
2472 const struct shash *details OVS_UNUSED, void *cbdata_)
2474 struct iface_delete_queues_cbdata *cbdata = cbdata_;
2476 if (!queue_ids_include(cbdata->queues, queue_id)) {
2477 netdev_delete_queue(cbdata->netdev, queue_id);
2482 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
2484 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
2485 netdev_set_qos(iface->netdev, NULL, NULL);
2487 struct iface_delete_queues_cbdata cbdata;
2488 struct shash details;
2491 /* Configure top-level Qos for 'iface'. */
2492 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
2493 qos->n_other_config, &details);
2494 netdev_set_qos(iface->netdev, qos->type, &details);
2495 shash_destroy(&details);
2497 /* Deconfigure queues that were deleted. */
2498 cbdata.netdev = iface->netdev;
2499 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
2501 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
2503 /* Configure queues for 'iface'. */
2504 for (i = 0; i < qos->n_queues; i++) {
2505 const struct ovsrec_queue *queue = qos->value_queues[i];
2506 unsigned int queue_id = qos->key_queues[i];
2508 shash_from_ovs_idl_map(queue->key_other_config,
2509 queue->value_other_config,
2510 queue->n_other_config, &details);
2511 netdev_set_queue(iface->netdev, queue_id, &details);
2512 shash_destroy(&details);
2516 netdev_set_policing(iface->netdev,
2517 iface->cfg->ingress_policing_rate,
2518 iface->cfg->ingress_policing_burst);
2522 iface_configure_cfm(struct iface *iface)
2526 uint16_t *remote_mps;
2527 struct ovsrec_monitor *mon;
2528 uint8_t maid[CCM_MAID_LEN];
2530 mon = iface->cfg->monitor;
2533 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
2537 if (!cfm_generate_maid(mon->md_name, mon->ma_name, maid)) {
2538 VLOG_WARN("interface %s: Failed to generate MAID.", iface->name);
2542 cfm.mpid = mon->mpid;
2543 cfm.interval = mon->interval ? *mon->interval : 1000;
2545 memcpy(cfm.maid, maid, sizeof cfm.maid);
2547 remote_mps = xzalloc(mon->n_remote_mps * sizeof *remote_mps);
2548 for(i = 0; i < mon->n_remote_mps; i++) {
2549 remote_mps[i] = mon->remote_mps[i]->mpid;
2552 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port,
2553 &cfm, remote_mps, mon->n_remote_mps);
2557 /* Read carrier or miimon status directly from 'iface''s netdev, according to
2558 * how 'iface''s port is configured.
2560 * Returns true if 'iface' is up, false otherwise. */
2562 iface_get_carrier(const struct iface *iface)
2565 return netdev_get_carrier(iface->netdev);
2568 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
2569 * instead of obtaining it from the database. */
2571 iface_is_synthetic(const struct iface *iface)
2573 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
2576 /* Port mirroring. */
2578 static struct mirror *
2579 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
2583 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
2584 if (uuid_equals(uuid, &m->uuid)) {
2592 bridge_configure_mirrors(struct bridge *br)
2594 const struct ovsdb_datum *mc;
2595 unsigned long *flood_vlans;
2596 struct mirror *m, *next;
2599 /* Get rid of deleted mirrors. */
2600 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
2601 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
2602 union ovsdb_atom atom;
2604 atom.uuid = m->uuid;
2605 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
2610 /* Add new mirrors and reconfigure existing ones. */
2611 for (i = 0; i < br->cfg->n_mirrors; i++) {
2612 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
2613 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
2615 m = mirror_create(br, cfg);
2617 if (!mirror_configure(m, cfg)) {
2622 /* Update flooded vlans (for RSPAN). */
2623 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
2624 br->cfg->n_flood_vlans);
2625 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
2626 bitmap_free(flood_vlans);
2629 static struct mirror *
2630 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
2634 m = xzalloc(sizeof *m);
2635 m->uuid = cfg->header_.uuid;
2636 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
2638 m->name = xstrdup(cfg->name);
2644 mirror_destroy(struct mirror *m)
2647 struct bridge *br = m->bridge;
2650 ofproto_mirror_unregister(br->ofproto, m);
2653 hmap_remove(&br->mirrors, &m->hmap_node);
2660 mirror_collect_ports(struct mirror *m,
2661 struct ovsrec_port **in_ports, int n_in_ports,
2662 void ***out_portsp, size_t *n_out_portsp)
2664 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
2665 size_t n_out_ports = 0;
2668 for (i = 0; i < n_in_ports; i++) {
2669 const char *name = in_ports[i]->name;
2670 struct port *port = port_lookup(m->bridge, name);
2672 out_ports[n_out_ports++] = port;
2674 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
2675 "port %s", m->bridge->name, m->name, name);
2678 *out_portsp = out_ports;
2679 *n_out_portsp = n_out_ports;
2683 mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
2685 struct ofproto_mirror_settings s;
2688 if (strcmp(cfg->name, m->name)) {
2690 m->name = xstrdup(cfg->name);
2694 /* Get output port or VLAN. */
2695 if (cfg->output_port) {
2696 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
2697 if (!s.out_bundle) {
2698 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
2699 m->bridge->name, m->name);
2702 s.out_vlan = UINT16_MAX;
2704 if (cfg->output_vlan) {
2705 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
2706 "output vlan; ignoring output vlan",
2707 m->bridge->name, m->name);
2709 } else if (cfg->output_vlan) {
2710 /* The database should prevent invalid VLAN values. */
2711 s.out_bundle = NULL;
2712 s.out_vlan = *cfg->output_vlan;
2714 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
2715 m->bridge->name, m->name);
2719 /* Get port selection. */
2720 if (cfg->select_all) {
2721 size_t n_ports = hmap_count(&m->bridge->ports);
2722 void **ports = xmalloc(n_ports * sizeof *ports);
2727 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
2737 /* Get ports, dropping ports that don't exist.
2738 * The IDL ensures that there are no duplicates. */
2739 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
2740 &s.srcs, &s.n_srcs);
2741 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
2742 &s.dsts, &s.n_dsts);
2746 /* Get VLAN selection. */
2747 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
2750 ofproto_mirror_register(m->bridge->ofproto, m, &s);
2753 if (s.srcs != s.dsts) {