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_remotes(struct bridge *,
156 const struct sockaddr_in *managers,
158 static void bridge_pick_local_hw_addr(struct bridge *,
159 uint8_t ea[ETH_ADDR_LEN],
160 struct iface **hw_addr_iface);
161 static uint64_t bridge_pick_datapath_id(struct bridge *,
162 const uint8_t bridge_ea[ETH_ADDR_LEN],
163 struct iface *hw_addr_iface);
164 static uint64_t dpid_from_hash(const void *, size_t nbytes);
165 static bool bridge_has_bond_fake_iface(const struct bridge *,
167 static bool port_is_bond_fake_iface(const struct port *);
169 static unixctl_cb_func qos_unixctl_show;
171 static struct port *port_create(struct bridge *, const struct ovsrec_port *);
172 static void port_add_ifaces(struct port *);
173 static void port_del_ifaces(struct port *);
174 static void port_destroy(struct port *);
175 static struct port *port_lookup(const struct bridge *, const char *name);
176 static void port_configure(struct port *);
177 static struct lacp_settings *port_configure_lacp(struct port *,
178 struct lacp_settings *);
179 static void port_configure_bond(struct port *, struct bond_settings *,
180 uint32_t *bond_stable_ids);
182 static void bridge_configure_mirrors(struct bridge *);
183 static struct mirror *mirror_create(struct bridge *,
184 const struct ovsrec_mirror *);
185 static void mirror_destroy(struct mirror *);
186 static bool mirror_configure(struct mirror *, const struct ovsrec_mirror *);
188 static void iface_configure_lacp(struct iface *, struct lacp_slave_settings *);
189 static struct iface *iface_create(struct port *port,
190 const struct ovsrec_interface *if_cfg);
191 static void iface_destroy(struct iface *);
192 static struct iface *iface_lookup(const struct bridge *, const char *name);
193 static struct iface *iface_find(const char *name);
194 static struct iface *iface_from_ofp_port(const struct bridge *,
196 static void iface_set_mac(struct iface *);
197 static void iface_set_ofport(const struct ovsrec_interface *, int64_t ofport);
198 static void iface_clear_db_record(const struct ovsrec_interface *if_cfg);
199 static void iface_configure_qos(struct iface *, const struct ovsrec_qos *);
200 static void iface_configure_cfm(struct iface *);
201 static void iface_refresh_cfm_stats(struct iface *);
202 static void iface_refresh_stats(struct iface *);
203 static void iface_refresh_status(struct iface *);
204 static bool iface_is_synthetic(const struct iface *);
206 static void shash_from_ovs_idl_map(char **keys, char **values, size_t n,
208 static void shash_to_ovs_idl_map(struct shash *,
209 char ***keys, char ***values, size_t *n);
211 /* Public functions. */
213 /* Initializes the bridge module, configuring it to obtain its configuration
214 * from an OVSDB server accessed over 'remote', which should be a string in a
215 * form acceptable to ovsdb_idl_create(). */
217 bridge_init(const char *remote)
219 /* Create connection to database. */
220 idl = ovsdb_idl_create(remote, &ovsrec_idl_class, true);
221 ovsdb_idl_set_lock(idl, "ovs_vswitchd");
223 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_cur_cfg);
224 ovsdb_idl_omit_alert(idl, &ovsrec_open_vswitch_col_statistics);
225 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_external_ids);
226 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_ovs_version);
227 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_db_version);
228 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_type);
229 ovsdb_idl_omit(idl, &ovsrec_open_vswitch_col_system_version);
231 ovsdb_idl_omit_alert(idl, &ovsrec_bridge_col_datapath_id);
232 ovsdb_idl_omit(idl, &ovsrec_bridge_col_external_ids);
234 ovsdb_idl_omit(idl, &ovsrec_port_col_external_ids);
235 ovsdb_idl_omit(idl, &ovsrec_port_col_fake_bridge);
237 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_admin_state);
238 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_duplex);
239 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_speed);
240 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_state);
241 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_link_resets);
242 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_mtu);
243 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_ofport);
244 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_statistics);
245 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_status);
246 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_fault);
247 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_cfm_remote_mpids);
248 ovsdb_idl_omit_alert(idl, &ovsrec_interface_col_lacp_current);
249 ovsdb_idl_omit(idl, &ovsrec_interface_col_external_ids);
251 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_is_connected);
252 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_role);
253 ovsdb_idl_omit_alert(idl, &ovsrec_controller_col_status);
254 ovsdb_idl_omit(idl, &ovsrec_controller_col_external_ids);
256 ovsdb_idl_omit(idl, &ovsrec_qos_col_external_ids);
258 ovsdb_idl_omit(idl, &ovsrec_queue_col_external_ids);
260 ovsdb_idl_omit(idl, &ovsrec_mirror_col_external_ids);
262 ovsdb_idl_omit(idl, &ovsrec_netflow_col_external_ids);
264 ovsdb_idl_omit(idl, &ovsrec_sflow_col_external_ids);
266 ovsdb_idl_omit(idl, &ovsrec_manager_col_external_ids);
267 ovsdb_idl_omit(idl, &ovsrec_manager_col_inactivity_probe);
268 ovsdb_idl_omit(idl, &ovsrec_manager_col_is_connected);
269 ovsdb_idl_omit(idl, &ovsrec_manager_col_max_backoff);
270 ovsdb_idl_omit(idl, &ovsrec_manager_col_status);
272 ovsdb_idl_omit(idl, &ovsrec_ssl_col_external_ids);
274 /* Register unixctl commands. */
275 unixctl_command_register("qos/show", "interface", qos_unixctl_show, NULL);
276 unixctl_command_register("bridge/dump-flows", "bridge",
277 bridge_unixctl_dump_flows, NULL);
278 unixctl_command_register("bridge/reconnect", "[bridge]",
279 bridge_unixctl_reconnect, NULL);
288 struct bridge *br, *next_br;
290 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
293 ovsdb_idl_destroy(idl);
296 /* Looks at the list of managers in 'ovs_cfg' and extracts their remote IP
297 * addresses and ports into '*managersp' and '*n_managersp'. The caller is
298 * responsible for freeing '*managersp' (with free()).
300 * You may be asking yourself "why does ovs-vswitchd care?", because
301 * ovsdb-server is responsible for connecting to the managers, and ovs-vswitchd
302 * should not be and in fact is not directly involved in that. But
303 * ovs-vswitchd needs to make sure that ovsdb-server can reach the managers, so
304 * it has to tell in-band control where the managers are to enable that.
305 * (Thus, only managers connected in-band are collected.)
308 collect_in_band_managers(const struct ovsrec_open_vswitch *ovs_cfg,
309 struct sockaddr_in **managersp, size_t *n_managersp)
311 struct sockaddr_in *managers = NULL;
312 size_t n_managers = 0;
316 /* Collect all of the potential targets from the "targets" columns of the
317 * rows pointed to by "manager_options", excluding any that are
320 for (i = 0; i < ovs_cfg->n_manager_options; i++) {
321 struct ovsrec_manager *m = ovs_cfg->manager_options[i];
323 if (m->connection_mode && !strcmp(m->connection_mode, "out-of-band")) {
324 sset_find_and_delete(&targets, m->target);
326 sset_add(&targets, m->target);
330 /* Now extract the targets' IP addresses. */
331 if (!sset_is_empty(&targets)) {
334 managers = xmalloc(sset_count(&targets) * sizeof *managers);
335 SSET_FOR_EACH (target, &targets) {
336 struct sockaddr_in *sin = &managers[n_managers];
338 if ((!strncmp(target, "tcp:", 4)
339 && inet_parse_active(target + 4, JSONRPC_TCP_PORT, sin)) ||
340 (!strncmp(target, "ssl:", 4)
341 && inet_parse_active(target + 4, JSONRPC_SSL_PORT, sin))) {
346 sset_destroy(&targets);
348 *managersp = managers;
349 *n_managersp = n_managers;
353 bridge_reconfigure(const struct ovsrec_open_vswitch *ovs_cfg)
355 struct sockaddr_in *managers;
356 struct bridge *br, *next;
357 int sflow_bridge_number;
360 COVERAGE_INC(bridge_reconfigure);
362 /* Create and destroy "struct bridge"s, "struct port"s, and "struct
363 * iface"s according to 'ovs_cfg', with only very minimal configuration
366 * This is purely an update to bridge data structures. Nothing is pushed
367 * down to ofproto or lower layers. */
368 add_del_bridges(ovs_cfg);
369 HMAP_FOR_EACH (br, node, &all_bridges) {
370 bridge_add_del_ports(br);
373 /* Delete all datapaths and datapath ports that are no longer configured.
375 * The kernel will reject any attempt to add a given port to a datapath if
376 * that port already belongs to a different datapath, so we must do all
377 * port deletions before any port additions. A datapath always has a
378 * "local port" so we must delete not-configured datapaths too. */
379 bridge_del_ofprotos();
380 HMAP_FOR_EACH (br, node, &all_bridges) {
382 bridge_del_ofproto_ports(br);
386 /* Create datapaths and datapath ports that are missing.
388 * After this is done, we have our final set of bridges, ports, and
389 * interfaces. Every "struct bridge" has an ofproto, every "struct port"
390 * has at least one iface, every "struct iface" has a valid ofp_port and
392 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
393 if (!br->ofproto && !bridge_add_ofprotos(br)) {
397 HMAP_FOR_EACH (br, node, &all_bridges) {
398 bridge_refresh_ofp_port(br);
399 bridge_add_ofproto_ports(br);
402 /* Complete the configuration. */
403 sflow_bridge_number = 0;
404 collect_in_band_managers(ovs_cfg, &managers, &n_managers);
405 HMAP_FOR_EACH (br, node, &all_bridges) {
408 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
411 port_configure(port);
413 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
414 iface_configure_cfm(iface);
415 iface_configure_qos(iface, port->cfg->qos);
416 iface_set_mac(iface);
419 bridge_configure_mirrors(br);
420 bridge_configure_datapath_id(br);
421 bridge_configure_flow_eviction_threshold(br);
422 bridge_configure_forward_bpdu(br);
423 bridge_configure_remotes(br, managers, n_managers);
424 bridge_configure_netflow(br);
425 bridge_configure_sflow(br, &sflow_bridge_number);
429 /* ovs-vswitchd has completed initialization, so allow the process that
430 * forked us to exit successfully. */
431 daemonize_complete();
434 /* Iterate over all ofprotos and delete any of them that do not have a
435 * configured bridge or that are the wrong type. */
437 bridge_del_ofprotos(void)
445 ofproto_enumerate_types(&types);
446 SSET_FOR_EACH (type, &types) {
449 ofproto_enumerate_names(type, &names);
450 SSET_FOR_EACH (name, &names) {
451 struct bridge *br = bridge_lookup(name);
452 if (!br || strcmp(type, br->type)) {
453 ofproto_delete(name, type);
457 sset_destroy(&names);
458 sset_destroy(&types);
462 bridge_add_ofprotos(struct bridge *br)
464 int error = ofproto_create(br->name, br->type, &br->ofproto);
466 VLOG_ERR("failed to create bridge %s: %s", br->name, strerror(error));
473 port_configure(struct port *port)
475 const struct ovsrec_port *cfg = port->cfg;
476 struct bond_settings bond_settings;
477 struct lacp_settings lacp_settings;
478 struct ofproto_bundle_settings s;
486 s.slaves = xmalloc(list_size(&port->ifaces) * sizeof *s.slaves);
487 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
488 s.slaves[s.n_slaves++] = iface->ofp_port;
494 if (list_is_short(&port->ifaces)) {
495 if (*cfg->tag >= 0 && *cfg->tag <= 4095) {
499 /* It's possible that bonded, VLAN-tagged ports make sense. Maybe
500 * they even work as-is. But they have not been tested. */
501 VLOG_WARN("port %s: VLAN tags not supported on bonded ports",
506 /* Get VLAN trunks. */
509 s.trunks = vlan_bitmap_from_array(cfg->trunks, cfg->n_trunks);
513 if (cfg->vlan_mode) {
514 if (!strcmp(cfg->vlan_mode, "access")) {
515 s.vlan_mode = PORT_VLAN_ACCESS;
516 } else if (!strcmp(cfg->vlan_mode, "trunk")) {
517 s.vlan_mode = PORT_VLAN_TRUNK;
518 } else if (!strcmp(cfg->vlan_mode, "native-tagged")) {
519 s.vlan_mode = PORT_VLAN_NATIVE_TAGGED;
520 } else if (!strcmp(cfg->vlan_mode, "native-untagged")) {
521 s.vlan_mode = PORT_VLAN_NATIVE_UNTAGGED;
523 /* This "can't happen" because ovsdb-server should prevent it. */
524 VLOG_ERR("unknown VLAN mode %s", cfg->vlan_mode);
525 s.vlan_mode = PORT_VLAN_TRUNK;
529 s.vlan_mode = PORT_VLAN_ACCESS;
531 VLOG_ERR("port %s: ignoring trunks in favor of implicit vlan",
535 s.vlan_mode = PORT_VLAN_TRUNK;
539 /* Get LACP settings. */
540 s.lacp = port_configure_lacp(port, &lacp_settings);
544 s.lacp_slaves = xmalloc(s.n_slaves * sizeof *s.lacp_slaves);
545 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
546 iface_configure_lacp(iface, &s.lacp_slaves[i++]);
549 s.lacp_slaves = NULL;
552 /* Get bond settings. */
553 if (s.n_slaves > 1) {
554 s.bond = &bond_settings;
555 s.bond_stable_ids = xmalloc(s.n_slaves * sizeof *s.bond_stable_ids);
556 port_configure_bond(port, &bond_settings, s.bond_stable_ids);
559 s.bond_stable_ids = NULL;
561 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
562 netdev_set_miimon_interval(iface->netdev, 0);
567 ofproto_bundle_register(port->bridge->ofproto, port, &s);
573 free(s.bond_stable_ids);
576 /* Pick local port hardware address and datapath ID for 'br'. */
578 bridge_configure_datapath_id(struct bridge *br)
580 uint8_t ea[ETH_ADDR_LEN];
582 struct iface *local_iface;
583 struct iface *hw_addr_iface;
586 bridge_pick_local_hw_addr(br, ea, &hw_addr_iface);
587 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
589 int error = netdev_set_etheraddr(local_iface->netdev, ea);
591 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
592 VLOG_ERR_RL(&rl, "bridge %s: failed to set bridge "
593 "Ethernet address: %s",
594 br->name, strerror(error));
597 memcpy(br->ea, ea, ETH_ADDR_LEN);
599 dpid = bridge_pick_datapath_id(br, ea, hw_addr_iface);
600 ofproto_set_datapath_id(br->ofproto, dpid);
602 dpid_string = xasprintf("%016"PRIx64, dpid);
603 ovsrec_bridge_set_datapath_id(br->cfg, dpid_string);
607 /* Set NetFlow configuration on 'br'. */
609 bridge_configure_netflow(struct bridge *br)
611 struct ovsrec_netflow *cfg = br->cfg->netflow;
612 struct netflow_options opts;
615 ofproto_set_netflow(br->ofproto, NULL);
619 memset(&opts, 0, sizeof opts);
621 /* Get default NetFlow configuration from datapath.
622 * Apply overrides from 'cfg'. */
623 ofproto_get_netflow_ids(br->ofproto, &opts.engine_type, &opts.engine_id);
624 if (cfg->engine_type) {
625 opts.engine_type = *cfg->engine_type;
627 if (cfg->engine_id) {
628 opts.engine_id = *cfg->engine_id;
631 /* Configure active timeout interval. */
632 opts.active_timeout = cfg->active_timeout;
633 if (!opts.active_timeout) {
634 opts.active_timeout = -1;
635 } else if (opts.active_timeout < 0) {
636 VLOG_WARN("bridge %s: active timeout interval set to negative "
637 "value, using default instead (%d seconds)", br->name,
638 NF_ACTIVE_TIMEOUT_DEFAULT);
639 opts.active_timeout = -1;
642 /* Add engine ID to interface number to disambiguate bridgs? */
643 opts.add_id_to_iface = cfg->add_id_to_interface;
644 if (opts.add_id_to_iface) {
645 if (opts.engine_id > 0x7f) {
646 VLOG_WARN("bridge %s: NetFlow port mangling may conflict with "
647 "another vswitch, choose an engine id less than 128",
650 if (hmap_count(&br->ports) > 508) {
651 VLOG_WARN("bridge %s: NetFlow port mangling will conflict with "
652 "another port when more than 508 ports are used",
658 sset_init(&opts.collectors);
659 sset_add_array(&opts.collectors, cfg->targets, cfg->n_targets);
662 if (ofproto_set_netflow(br->ofproto, &opts)) {
663 VLOG_ERR("bridge %s: problem setting netflow collectors", br->name);
665 sset_destroy(&opts.collectors);
668 /* Set sFlow configuration on 'br'. */
670 bridge_configure_sflow(struct bridge *br, int *sflow_bridge_number)
672 const struct ovsrec_sflow *cfg = br->cfg->sflow;
673 struct ovsrec_controller **controllers;
674 struct ofproto_sflow_options oso;
675 size_t n_controllers;
679 ofproto_set_sflow(br->ofproto, NULL);
683 memset(&oso, 0, sizeof oso);
685 sset_init(&oso.targets);
686 sset_add_array(&oso.targets, cfg->targets, cfg->n_targets);
688 oso.sampling_rate = SFL_DEFAULT_SAMPLING_RATE;
690 oso.sampling_rate = *cfg->sampling;
693 oso.polling_interval = SFL_DEFAULT_POLLING_INTERVAL;
695 oso.polling_interval = *cfg->polling;
698 oso.header_len = SFL_DEFAULT_HEADER_SIZE;
700 oso.header_len = *cfg->header;
703 oso.sub_id = (*sflow_bridge_number)++;
704 oso.agent_device = cfg->agent;
706 oso.control_ip = NULL;
707 n_controllers = bridge_get_controllers(br, &controllers);
708 for (i = 0; i < n_controllers; i++) {
709 if (controllers[i]->local_ip) {
710 oso.control_ip = controllers[i]->local_ip;
714 ofproto_set_sflow(br->ofproto, &oso);
716 sset_destroy(&oso.targets);
720 bridge_has_bond_fake_iface(const struct bridge *br, const char *name)
722 const struct port *port = port_lookup(br, name);
723 return port && port_is_bond_fake_iface(port);
727 port_is_bond_fake_iface(const struct port *port)
729 return port->cfg->bond_fake_iface && !list_is_short(&port->ifaces);
733 add_del_bridges(const struct ovsrec_open_vswitch *cfg)
735 struct bridge *br, *next;
739 /* Collect new bridges' names and types. */
741 for (i = 0; i < cfg->n_bridges; i++) {
742 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
743 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
745 if (strchr(br_cfg->name, '/')) {
746 /* Prevent remote ovsdb-server users from accessing arbitrary
747 * directories, e.g. consider a bridge named "../../../etc/". */
748 VLOG_WARN_RL(&rl, "ignoring bridge with invalid name \"%s\"",
750 } else if (!shash_add_once(&new_br, br_cfg->name, br_cfg)) {
751 VLOG_WARN_RL(&rl, "bridge %s specified twice", br_cfg->name);
755 /* Get rid of deleted bridges or those whose types have changed.
756 * Update 'cfg' of bridges that still exist. */
757 HMAP_FOR_EACH_SAFE (br, next, node, &all_bridges) {
758 br->cfg = shash_find_data(&new_br, br->name);
759 if (!br->cfg || strcmp(br->type, ofproto_normalize_type(
760 br->cfg->datapath_type))) {
765 /* Add new bridges. */
766 for (i = 0; i < cfg->n_bridges; i++) {
767 const struct ovsrec_bridge *br_cfg = cfg->bridges[i];
768 struct bridge *br = bridge_lookup(br_cfg->name);
770 bridge_create(br_cfg);
774 shash_destroy(&new_br);
777 /* Delete each ofproto port on 'br' that doesn't have a corresponding "struct
780 * The kernel will reject any attempt to add a given port to a datapath if that
781 * port already belongs to a different datapath, so we must do all port
782 * deletions before any port additions. */
784 bridge_del_ofproto_ports(struct bridge *br)
786 struct ofproto_port_dump dump;
787 struct ofproto_port ofproto_port;
789 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
790 const char *name = ofproto_port.name;
795 /* Ignore the local port. We can't change it anyhow. */
796 if (!strcmp(name, br->name)) {
800 /* Get the type that 'ofproto_port' should have (ordinarily the
801 * type of its corresponding iface) or NULL if it should be
803 iface = iface_lookup(br, name);
804 type = (iface ? iface->type
805 : bridge_has_bond_fake_iface(br, name) ? "internal"
808 /* If it's the wrong type then delete the ofproto port. */
810 && !strcmp(ofproto_port.type, type)
811 && (!iface || !iface->netdev
812 || !strcmp(netdev_get_type(iface->netdev), type))) {
815 error = ofproto_port_del(br->ofproto, ofproto_port.ofp_port);
817 VLOG_WARN("bridge %s: failed to remove %s interface (%s)",
818 br->name, name, strerror(error));
821 netdev_close(iface->netdev);
822 iface->netdev = NULL;
828 iface_set_ofp_port(struct iface *iface, int ofp_port)
830 struct bridge *br = iface->port->bridge;
832 assert(iface->ofp_port < 0 && ofp_port >= 0);
833 iface->ofp_port = ofp_port;
834 hmap_insert(&br->ifaces, &iface->ofp_port_node, hash_int(ofp_port, 0));
835 iface_set_ofport(iface->cfg, ofp_port);
839 bridge_refresh_ofp_port(struct bridge *br)
841 struct ofproto_port_dump dump;
842 struct ofproto_port ofproto_port;
845 /* Clear all the "ofp_port"es. */
846 hmap_clear(&br->ifaces);
847 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
850 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
851 iface->ofp_port = -1;
855 /* Obtain the correct "ofp_port"s from ofproto. */
856 OFPROTO_PORT_FOR_EACH (&ofproto_port, &dump, br->ofproto) {
857 struct iface *iface = iface_lookup(br, ofproto_port.name);
859 if (iface->ofp_port >= 0) {
860 VLOG_WARN("bridge %s: interface %s reported twice",
861 br->name, ofproto_port.name);
862 } else if (iface_from_ofp_port(br, ofproto_port.ofp_port)) {
863 VLOG_WARN("bridge %s: interface %"PRIu16" reported twice",
864 br->name, ofproto_port.ofp_port);
866 iface_set_ofp_port(iface, ofproto_port.ofp_port);
872 /* Add an ofproto port for any "struct iface" that doesn't have one.
873 * Delete any "struct iface" for which this fails.
874 * Delete any "struct port" that thereby ends up with no ifaces. */
876 bridge_add_ofproto_ports(struct bridge *br)
878 struct port *port, *next_port;
880 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
881 struct iface *iface, *next_iface;
882 struct ofproto_port ofproto_port;
884 LIST_FOR_EACH_SAFE (iface, next_iface, port_elem, &port->ifaces) {
887 /* Open the netdev. */
888 if (!iface->netdev) {
889 error = netdev_open(iface->name, iface->type, &iface->netdev);
891 VLOG_WARN("could not open network device %s (%s)",
892 iface->name, strerror(error));
898 /* Configure the netdev. */
903 shash_from_ovs_idl_map(iface->cfg->key_options,
904 iface->cfg->value_options,
905 iface->cfg->n_options, &args);
906 error = netdev_set_config(iface->netdev, &args);
907 shash_destroy(&args);
910 VLOG_WARN("could not configure network device %s (%s)",
911 iface->name, strerror(error));
912 netdev_close(iface->netdev);
913 iface->netdev = NULL;
917 /* Add the port, if necessary. */
918 if (iface->netdev && iface->ofp_port < 0) {
922 error = ofproto_port_add(br->ofproto, iface->netdev,
925 iface_set_ofp_port(iface, ofp_port);
927 netdev_close(iface->netdev);
928 iface->netdev = NULL;
932 /* Populate stats columns in new Interface rows. */
933 if (iface->netdev && !iface->cfg->mtu) {
934 iface_refresh_stats(iface);
935 iface_refresh_status(iface);
938 /* Delete the iface if we failed. */
939 if (iface->netdev && iface->ofp_port >= 0) {
940 VLOG_DBG("bridge %s: interface %s is on port %d",
941 br->name, iface->name, iface->ofp_port);
944 VLOG_ERR("bridge %s: missing %s interface, dropping",
945 br->name, iface->name);
947 /* We already reported a related error, don't bother
950 iface_clear_db_record(iface->cfg);
951 iface_destroy(iface);
954 if (list_is_empty(&port->ifaces)) {
955 VLOG_WARN("%s port has no interfaces, dropping", port->name);
960 /* Add bond fake iface if necessary. */
961 if (port_is_bond_fake_iface(port)) {
962 if (ofproto_port_query_by_name(br->ofproto, port->name,
964 struct netdev *netdev;
967 error = netdev_open(port->name, "internal", &netdev);
969 ofproto_port_add(br->ofproto, netdev, NULL);
970 netdev_close(netdev);
972 VLOG_WARN("could not open network device %s (%s)",
973 port->name, strerror(error));
976 /* Already exists, nothing to do. */
977 ofproto_port_destroy(&ofproto_port);
984 get_ovsrec_key_value(const struct ovsdb_idl_row *row,
985 const struct ovsdb_idl_column *column,
988 const struct ovsdb_datum *datum;
989 union ovsdb_atom atom;
992 datum = ovsdb_idl_get(row, column, OVSDB_TYPE_STRING, OVSDB_TYPE_STRING);
993 atom.string = (char *) key;
994 idx = ovsdb_datum_find_key(datum, &atom, OVSDB_TYPE_STRING);
995 return idx == UINT_MAX ? NULL : datum->values[idx].string;
999 bridge_get_other_config(const struct ovsrec_bridge *br_cfg, const char *key)
1001 return get_ovsrec_key_value(&br_cfg->header_,
1002 &ovsrec_bridge_col_other_config, key);
1005 /* Set Flow eviction threshold */
1007 bridge_configure_flow_eviction_threshold(struct bridge *br)
1009 const char *threshold_str;
1012 threshold_str = bridge_get_other_config(br->cfg, "flow-eviction-threshold");
1013 if (threshold_str) {
1014 threshold = strtoul(threshold_str, NULL, 10);
1016 threshold = OFPROTO_FLOW_EVICTON_THRESHOLD_DEFAULT;
1018 ofproto_set_flow_eviction_threshold(br->ofproto, threshold);
1021 /* Set forward BPDU option. */
1023 bridge_configure_forward_bpdu(struct bridge *br)
1025 const char *forward_bpdu_str;
1026 bool forward_bpdu = false;
1028 forward_bpdu_str = bridge_get_other_config(br->cfg, "forward-bpdu");
1029 if (forward_bpdu_str && !strcmp(forward_bpdu_str, "true")) {
1030 forward_bpdu = true;
1032 ofproto_set_forward_bpdu(br->ofproto, forward_bpdu);
1036 bridge_pick_local_hw_addr(struct bridge *br, uint8_t ea[ETH_ADDR_LEN],
1037 struct iface **hw_addr_iface)
1041 bool found_addr = false;
1044 *hw_addr_iface = NULL;
1046 /* Did the user request a particular MAC? */
1047 hwaddr = bridge_get_other_config(br->cfg, "hwaddr");
1048 if (hwaddr && eth_addr_from_string(hwaddr, ea)) {
1049 if (eth_addr_is_multicast(ea)) {
1050 VLOG_ERR("bridge %s: cannot set MAC address to multicast "
1051 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1052 } else if (eth_addr_is_zero(ea)) {
1053 VLOG_ERR("bridge %s: cannot set MAC address to zero", br->name);
1059 /* Otherwise choose the minimum non-local MAC address among all of the
1061 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1062 uint8_t iface_ea[ETH_ADDR_LEN];
1063 struct iface *candidate;
1064 struct iface *iface;
1066 /* Mirror output ports don't participate. */
1067 if (ofproto_is_mirror_output_bundle(br->ofproto, port)) {
1071 /* Choose the MAC address to represent the port. */
1073 if (port->cfg->mac && eth_addr_from_string(port->cfg->mac, iface_ea)) {
1074 /* Find the interface with this Ethernet address (if any) so that
1075 * we can provide the correct devname to the caller. */
1076 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1077 uint8_t candidate_ea[ETH_ADDR_LEN];
1078 if (!netdev_get_etheraddr(candidate->netdev, candidate_ea)
1079 && eth_addr_equals(iface_ea, candidate_ea)) {
1084 /* Choose the interface whose MAC address will represent the port.
1085 * The Linux kernel bonding code always chooses the MAC address of
1086 * the first slave added to a bond, and the Fedora networking
1087 * scripts always add slaves to a bond in alphabetical order, so
1088 * for compatibility we choose the interface with the name that is
1089 * first in alphabetical order. */
1090 LIST_FOR_EACH (candidate, port_elem, &port->ifaces) {
1091 if (!iface || strcmp(candidate->name, iface->name) < 0) {
1096 /* The local port doesn't count (since we're trying to choose its
1097 * MAC address anyway). */
1098 if (iface->ofp_port == OFPP_LOCAL) {
1103 error = netdev_get_etheraddr(iface->netdev, iface_ea);
1109 /* Compare against our current choice. */
1110 if (!eth_addr_is_multicast(iface_ea) &&
1111 !eth_addr_is_local(iface_ea) &&
1112 !eth_addr_is_reserved(iface_ea) &&
1113 !eth_addr_is_zero(iface_ea) &&
1114 (!found_addr || eth_addr_compare_3way(iface_ea, ea) < 0))
1116 memcpy(ea, iface_ea, ETH_ADDR_LEN);
1117 *hw_addr_iface = iface;
1122 VLOG_DBG("bridge %s: using bridge Ethernet address "ETH_ADDR_FMT,
1123 br->name, ETH_ADDR_ARGS(ea));
1125 memcpy(ea, br->default_ea, ETH_ADDR_LEN);
1126 *hw_addr_iface = NULL;
1127 VLOG_WARN("bridge %s: using default bridge Ethernet "
1128 "address "ETH_ADDR_FMT, br->name, ETH_ADDR_ARGS(ea));
1132 /* Choose and returns the datapath ID for bridge 'br' given that the bridge
1133 * Ethernet address is 'bridge_ea'. If 'bridge_ea' is the Ethernet address of
1134 * an interface on 'br', then that interface must be passed in as
1135 * 'hw_addr_iface'; if 'bridge_ea' was derived some other way, then
1136 * 'hw_addr_iface' must be passed in as a null pointer. */
1138 bridge_pick_datapath_id(struct bridge *br,
1139 const uint8_t bridge_ea[ETH_ADDR_LEN],
1140 struct iface *hw_addr_iface)
1143 * The procedure for choosing a bridge MAC address will, in the most
1144 * ordinary case, also choose a unique MAC that we can use as a datapath
1145 * ID. In some special cases, though, multiple bridges will end up with
1146 * the same MAC address. This is OK for the bridges, but it will confuse
1147 * the OpenFlow controller, because each datapath needs a unique datapath
1150 * Datapath IDs must be unique. It is also very desirable that they be
1151 * stable from one run to the next, so that policy set on a datapath
1154 const char *datapath_id;
1157 datapath_id = bridge_get_other_config(br->cfg, "datapath-id");
1158 if (datapath_id && dpid_from_string(datapath_id, &dpid)) {
1162 if (hw_addr_iface) {
1164 if (!netdev_get_vlan_vid(hw_addr_iface->netdev, &vlan)) {
1166 * A bridge whose MAC address is taken from a VLAN network device
1167 * (that is, a network device created with vconfig(8) or similar
1168 * tool) will have the same MAC address as a bridge on the VLAN
1169 * device's physical network device.
1171 * Handle this case by hashing the physical network device MAC
1172 * along with the VLAN identifier.
1174 uint8_t buf[ETH_ADDR_LEN + 2];
1175 memcpy(buf, bridge_ea, ETH_ADDR_LEN);
1176 buf[ETH_ADDR_LEN] = vlan >> 8;
1177 buf[ETH_ADDR_LEN + 1] = vlan;
1178 return dpid_from_hash(buf, sizeof buf);
1181 * Assume that this bridge's MAC address is unique, since it
1182 * doesn't fit any of the cases we handle specially.
1187 * A purely internal bridge, that is, one that has no non-virtual
1188 * network devices on it at all, is more difficult because it has no
1189 * natural unique identifier at all.
1191 * When the host is a XenServer, we handle this case by hashing the
1192 * host's UUID with the name of the bridge. Names of bridges are
1193 * persistent across XenServer reboots, although they can be reused if
1194 * an internal network is destroyed and then a new one is later
1195 * created, so this is fairly effective.
1197 * When the host is not a XenServer, we punt by using a random MAC
1198 * address on each run.
1200 const char *host_uuid = xenserver_get_host_uuid();
1202 char *combined = xasprintf("%s,%s", host_uuid, br->name);
1203 dpid = dpid_from_hash(combined, strlen(combined));
1209 return eth_addr_to_uint64(bridge_ea);
1213 dpid_from_hash(const void *data, size_t n)
1215 uint8_t hash[SHA1_DIGEST_SIZE];
1217 BUILD_ASSERT_DECL(sizeof hash >= ETH_ADDR_LEN);
1218 sha1_bytes(data, n, hash);
1219 eth_addr_mark_random(hash);
1220 return eth_addr_to_uint64(hash);
1224 iface_refresh_status(struct iface *iface)
1228 enum netdev_flags flags;
1235 if (iface_is_synthetic(iface)) {
1241 if (!netdev_get_status(iface->netdev, &sh)) {
1243 char **keys, **values;
1245 shash_to_ovs_idl_map(&sh, &keys, &values, &n);
1246 ovsrec_interface_set_status(iface->cfg, keys, values, n);
1251 ovsrec_interface_set_status(iface->cfg, NULL, NULL, 0);
1254 shash_destroy_free_data(&sh);
1256 error = netdev_get_flags(iface->netdev, &flags);
1258 ovsrec_interface_set_admin_state(iface->cfg, flags & NETDEV_UP ? "up" : "down");
1261 ovsrec_interface_set_admin_state(iface->cfg, NULL);
1264 error = netdev_get_features(iface->netdev, ¤t, NULL, NULL, NULL);
1266 ovsrec_interface_set_duplex(iface->cfg,
1267 netdev_features_is_full_duplex(current)
1269 /* warning: uint64_t -> int64_t conversion */
1270 bps = netdev_features_to_bps(current);
1271 ovsrec_interface_set_link_speed(iface->cfg, &bps, 1);
1274 ovsrec_interface_set_duplex(iface->cfg, NULL);
1275 ovsrec_interface_set_link_speed(iface->cfg, NULL, 0);
1278 error = netdev_get_mtu(iface->netdev, &mtu);
1281 ovsrec_interface_set_mtu(iface->cfg, &mtu_64, 1);
1284 ovsrec_interface_set_mtu(iface->cfg, NULL, 0);
1288 /* Writes 'iface''s CFM statistics to the database. */
1290 iface_refresh_cfm_stats(struct iface *iface)
1292 const struct ovsrec_interface *cfg = iface->cfg;
1294 const uint64_t *rmps;
1297 if (iface_is_synthetic(iface)) {
1301 fault = ofproto_port_get_cfm_fault(iface->port->bridge->ofproto,
1304 bool fault_bool = fault;
1305 ovsrec_interface_set_cfm_fault(cfg, &fault_bool, 1);
1307 ovsrec_interface_set_cfm_fault(cfg, NULL, 0);
1310 error = ofproto_port_get_cfm_remote_mpids(iface->port->bridge->ofproto,
1311 iface->ofp_port, &rmps, &n_rmps);
1313 ovsrec_interface_set_cfm_remote_mpids(cfg, (const int64_t *)rmps,
1316 ovsrec_interface_set_cfm_remote_mpids(cfg, NULL, 0);
1321 iface_refresh_stats(struct iface *iface)
1323 #define IFACE_STATS \
1324 IFACE_STAT(rx_packets, "rx_packets") \
1325 IFACE_STAT(tx_packets, "tx_packets") \
1326 IFACE_STAT(rx_bytes, "rx_bytes") \
1327 IFACE_STAT(tx_bytes, "tx_bytes") \
1328 IFACE_STAT(rx_dropped, "rx_dropped") \
1329 IFACE_STAT(tx_dropped, "tx_dropped") \
1330 IFACE_STAT(rx_errors, "rx_errors") \
1331 IFACE_STAT(tx_errors, "tx_errors") \
1332 IFACE_STAT(rx_frame_errors, "rx_frame_err") \
1333 IFACE_STAT(rx_over_errors, "rx_over_err") \
1334 IFACE_STAT(rx_crc_errors, "rx_crc_err") \
1335 IFACE_STAT(collisions, "collisions")
1337 #define IFACE_STAT(MEMBER, NAME) NAME,
1338 static char *keys[] = { IFACE_STATS };
1340 int64_t values[ARRAY_SIZE(keys)];
1343 struct netdev_stats stats;
1345 if (iface_is_synthetic(iface)) {
1349 /* Intentionally ignore return value, since errors will set 'stats' to
1350 * all-1s, and we will deal with that correctly below. */
1351 netdev_get_stats(iface->netdev, &stats);
1353 /* Copy statistics into values[] array. */
1355 #define IFACE_STAT(MEMBER, NAME) values[i++] = stats.MEMBER;
1358 assert(i == ARRAY_SIZE(keys));
1360 ovsrec_interface_set_statistics(iface->cfg, keys, values, ARRAY_SIZE(keys));
1365 enable_system_stats(const struct ovsrec_open_vswitch *cfg)
1369 /* Use other-config:enable-system-stats by preference. */
1370 enable = get_ovsrec_key_value(&cfg->header_,
1371 &ovsrec_open_vswitch_col_other_config,
1372 "enable-statistics");
1374 return !strcmp(enable, "true");
1377 /* Disable by default. */
1382 refresh_system_stats(const struct ovsrec_open_vswitch *cfg)
1384 struct ovsdb_datum datum;
1388 if (enable_system_stats(cfg)) {
1389 get_system_stats(&stats);
1392 ovsdb_datum_from_shash(&datum, &stats);
1393 ovsdb_idl_txn_write(&cfg->header_, &ovsrec_open_vswitch_col_statistics,
1397 static inline const char *
1398 nx_role_to_str(enum nx_role role)
1403 case NX_ROLE_MASTER:
1408 return "*** INVALID ROLE ***";
1413 refresh_controller_status(void)
1417 const struct ovsrec_controller *cfg;
1421 /* Accumulate status for controllers on all bridges. */
1422 HMAP_FOR_EACH (br, node, &all_bridges) {
1423 ofproto_get_ofproto_controller_info(br->ofproto, &info);
1426 /* Update each controller in the database with current status. */
1427 OVSREC_CONTROLLER_FOR_EACH(cfg, idl) {
1428 struct ofproto_controller_info *cinfo =
1429 shash_find_data(&info, cfg->target);
1432 ovsrec_controller_set_is_connected(cfg, cinfo->is_connected);
1433 ovsrec_controller_set_role(cfg, nx_role_to_str(cinfo->role));
1434 ovsrec_controller_set_status(cfg, (char **) cinfo->pairs.keys,
1435 (char **) cinfo->pairs.values,
1438 ovsrec_controller_set_is_connected(cfg, false);
1439 ovsrec_controller_set_role(cfg, NULL);
1440 ovsrec_controller_set_status(cfg, NULL, NULL, 0);
1444 ofproto_free_ofproto_controller_info(&info);
1448 refresh_cfm_stats(void)
1450 static struct ovsdb_idl_txn *txn = NULL;
1455 txn = ovsdb_idl_txn_create(idl);
1457 HMAP_FOR_EACH (br, node, &all_bridges) {
1458 struct iface *iface;
1460 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1461 iface_refresh_cfm_stats(iface);
1466 if (ovsdb_idl_txn_commit(txn) != TXN_INCOMPLETE) {
1467 ovsdb_idl_txn_destroy(txn);
1475 const struct ovsrec_open_vswitch *cfg;
1477 bool datapath_destroyed;
1478 bool database_changed;
1481 /* (Re)configure if necessary. */
1482 database_changed = ovsdb_idl_run(idl);
1483 if (ovsdb_idl_is_lock_contended(idl)) {
1484 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
1485 struct bridge *br, *next_br;
1487 VLOG_ERR_RL(&rl, "another ovs-vswitchd process is running, "
1488 "disabling this process until it goes away");
1490 HMAP_FOR_EACH_SAFE (br, next_br, node, &all_bridges) {
1494 } else if (!ovsdb_idl_has_lock(idl)) {
1497 cfg = ovsrec_open_vswitch_first(idl);
1499 /* Let each bridge do the work that it needs to do. */
1500 datapath_destroyed = false;
1501 HMAP_FOR_EACH (br, node, &all_bridges) {
1502 int error = ofproto_run(br->ofproto);
1504 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
1505 VLOG_ERR_RL(&rl, "bridge %s: datapath was destroyed externally, "
1506 "forcing reconfiguration", br->name);
1507 datapath_destroyed = true;
1511 /* Re-configure SSL. We do this on every trip through the main loop,
1512 * instead of just when the database changes, because the contents of the
1513 * key and certificate files can change without the database changing.
1515 * We do this before bridge_reconfigure() because that function might
1516 * initiate SSL connections and thus requires SSL to be configured. */
1517 if (cfg && cfg->ssl) {
1518 const struct ovsrec_ssl *ssl = cfg->ssl;
1520 stream_ssl_set_key_and_cert(ssl->private_key, ssl->certificate);
1521 stream_ssl_set_ca_cert_file(ssl->ca_cert, ssl->bootstrap_ca_cert);
1524 if (database_changed || datapath_destroyed) {
1526 struct ovsdb_idl_txn *txn = ovsdb_idl_txn_create(idl);
1528 bridge_reconfigure(cfg);
1530 ovsrec_open_vswitch_set_cur_cfg(cfg, cfg->next_cfg);
1531 ovsdb_idl_txn_commit(txn);
1532 ovsdb_idl_txn_destroy(txn); /* XXX */
1534 /* We still need to reconfigure to avoid dangling pointers to
1535 * now-destroyed ovsrec structures inside bridge data. */
1536 static const struct ovsrec_open_vswitch null_cfg;
1538 bridge_reconfigure(&null_cfg);
1542 /* Refresh system and interface stats if necessary. */
1543 if (time_msec() >= stats_timer) {
1545 struct ovsdb_idl_txn *txn;
1547 txn = ovsdb_idl_txn_create(idl);
1548 HMAP_FOR_EACH (br, node, &all_bridges) {
1551 HMAP_FOR_EACH (port, hmap_node, &br->ports) {
1552 struct iface *iface;
1554 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
1555 iface_refresh_stats(iface);
1556 iface_refresh_status(iface);
1560 refresh_system_stats(cfg);
1561 refresh_controller_status();
1562 ovsdb_idl_txn_commit(txn);
1563 ovsdb_idl_txn_destroy(txn); /* XXX */
1566 stats_timer = time_msec() + STATS_INTERVAL;
1569 if (time_msec() >= db_limiter) {
1570 struct ovsdb_idl_txn *txn;
1572 txn = ovsdb_idl_txn_create(idl);
1573 HMAP_FOR_EACH (br, node, &all_bridges) {
1574 struct iface *iface;
1576 HMAP_FOR_EACH (iface, name_node, &br->iface_by_name) {
1577 const char *link_state;
1578 int64_t link_resets;
1581 if (iface_is_synthetic(iface)) {
1585 current = ofproto_port_is_lacp_current(br->ofproto,
1589 ovsrec_interface_set_lacp_current(iface->cfg, &bl, 1);
1591 ovsrec_interface_set_lacp_current(iface->cfg, NULL, 0);
1594 link_state = netdev_get_carrier(iface->netdev) ? "up" : "down";
1595 ovsrec_interface_set_link_state(iface->cfg, link_state);
1597 link_resets = netdev_get_carrier_resets(iface->netdev);
1598 ovsrec_interface_set_link_resets(iface->cfg, &link_resets, 1);
1602 if (ovsdb_idl_txn_commit(txn) != TXN_UNCHANGED) {
1603 db_limiter = time_msec() + DB_LIMIT_INTERVAL;
1605 ovsdb_idl_txn_destroy(txn);
1608 refresh_cfm_stats();
1614 ovsdb_idl_wait(idl);
1615 if (!hmap_is_empty(&all_bridges)) {
1618 HMAP_FOR_EACH (br, node, &all_bridges) {
1619 ofproto_wait(br->ofproto);
1621 poll_timer_wait_until(stats_timer);
1623 if (db_limiter > time_msec()) {
1624 poll_timer_wait_until(db_limiter);
1629 /* QoS unixctl user interface functions. */
1631 struct qos_unixctl_show_cbdata {
1633 struct iface *iface;
1637 qos_unixctl_show_cb(unsigned int queue_id,
1638 const struct shash *details,
1641 struct qos_unixctl_show_cbdata *data = aux;
1642 struct ds *ds = data->ds;
1643 struct iface *iface = data->iface;
1644 struct netdev_queue_stats stats;
1645 struct shash_node *node;
1648 ds_put_cstr(ds, "\n");
1650 ds_put_format(ds, "Queue %u:\n", queue_id);
1652 ds_put_cstr(ds, "Default:\n");
1655 SHASH_FOR_EACH (node, details) {
1656 ds_put_format(ds, "\t%s: %s\n", node->name, (char *)node->data);
1659 error = netdev_get_queue_stats(iface->netdev, queue_id, &stats);
1661 if (stats.tx_packets != UINT64_MAX) {
1662 ds_put_format(ds, "\ttx_packets: %"PRIu64"\n", stats.tx_packets);
1665 if (stats.tx_bytes != UINT64_MAX) {
1666 ds_put_format(ds, "\ttx_bytes: %"PRIu64"\n", stats.tx_bytes);
1669 if (stats.tx_errors != UINT64_MAX) {
1670 ds_put_format(ds, "\ttx_errors: %"PRIu64"\n", stats.tx_errors);
1673 ds_put_format(ds, "\tFailed to get statistics for queue %u: %s",
1674 queue_id, strerror(error));
1679 qos_unixctl_show(struct unixctl_conn *conn,
1680 const char *args, void *aux OVS_UNUSED)
1682 struct ds ds = DS_EMPTY_INITIALIZER;
1683 struct shash sh = SHASH_INITIALIZER(&sh);
1684 struct iface *iface;
1686 struct shash_node *node;
1687 struct qos_unixctl_show_cbdata data;
1690 iface = iface_find(args);
1692 unixctl_command_reply(conn, 501, "no such interface");
1696 netdev_get_qos(iface->netdev, &type, &sh);
1698 if (*type != '\0') {
1699 ds_put_format(&ds, "QoS: %s %s\n", iface->name, type);
1701 SHASH_FOR_EACH (node, &sh) {
1702 ds_put_format(&ds, "%s: %s\n", node->name, (char *)node->data);
1707 error = netdev_dump_queues(iface->netdev, qos_unixctl_show_cb, &data);
1710 ds_put_format(&ds, "failed to dump queues: %s", strerror(error));
1712 unixctl_command_reply(conn, 200, ds_cstr(&ds));
1714 ds_put_format(&ds, "QoS not configured on %s\n", iface->name);
1715 unixctl_command_reply(conn, 501, ds_cstr(&ds));
1718 shash_destroy_free_data(&sh);
1722 /* Bridge reconfiguration functions. */
1724 bridge_create(const struct ovsrec_bridge *br_cfg)
1728 assert(!bridge_lookup(br_cfg->name));
1729 br = xzalloc(sizeof *br);
1731 br->name = xstrdup(br_cfg->name);
1732 br->type = xstrdup(ofproto_normalize_type(br_cfg->datapath_type));
1735 /* Derive the default Ethernet address from the bridge's UUID. This should
1736 * be unique and it will be stable between ovs-vswitchd runs. */
1737 memcpy(br->default_ea, &br_cfg->header_.uuid, ETH_ADDR_LEN);
1738 eth_addr_mark_random(br->default_ea);
1740 hmap_init(&br->ports);
1741 hmap_init(&br->ifaces);
1742 hmap_init(&br->iface_by_name);
1743 hmap_init(&br->mirrors);
1745 hmap_insert(&all_bridges, &br->node, hash_string(br->name, 0));
1749 bridge_destroy(struct bridge *br)
1752 struct mirror *mirror, *next_mirror;
1753 struct port *port, *next_port;
1755 HMAP_FOR_EACH_SAFE (port, next_port, hmap_node, &br->ports) {
1758 HMAP_FOR_EACH_SAFE (mirror, next_mirror, hmap_node, &br->mirrors) {
1759 mirror_destroy(mirror);
1761 hmap_remove(&all_bridges, &br->node);
1762 ofproto_destroy(br->ofproto);
1763 hmap_destroy(&br->ifaces);
1764 hmap_destroy(&br->ports);
1765 hmap_destroy(&br->iface_by_name);
1766 hmap_destroy(&br->mirrors);
1773 static struct bridge *
1774 bridge_lookup(const char *name)
1778 HMAP_FOR_EACH_WITH_HASH (br, node, hash_string(name, 0), &all_bridges) {
1779 if (!strcmp(br->name, name)) {
1786 /* Handle requests for a listing of all flows known by the OpenFlow
1787 * stack, including those normally hidden. */
1789 bridge_unixctl_dump_flows(struct unixctl_conn *conn,
1790 const char *args, void *aux OVS_UNUSED)
1795 br = bridge_lookup(args);
1797 unixctl_command_reply(conn, 501, "Unknown bridge");
1802 ofproto_get_all_flows(br->ofproto, &results);
1804 unixctl_command_reply(conn, 200, ds_cstr(&results));
1805 ds_destroy(&results);
1808 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
1809 * connections and reconnect. If BRIDGE is not specified, then all bridges
1810 * drop their controller connections and reconnect. */
1812 bridge_unixctl_reconnect(struct unixctl_conn *conn,
1813 const char *args, void *aux OVS_UNUSED)
1816 if (args[0] != '\0') {
1817 br = bridge_lookup(args);
1819 unixctl_command_reply(conn, 501, "Unknown bridge");
1822 ofproto_reconnect_controllers(br->ofproto);
1824 HMAP_FOR_EACH (br, node, &all_bridges) {
1825 ofproto_reconnect_controllers(br->ofproto);
1828 unixctl_command_reply(conn, 200, NULL);
1832 bridge_get_controllers(const struct bridge *br,
1833 struct ovsrec_controller ***controllersp)
1835 struct ovsrec_controller **controllers;
1836 size_t n_controllers;
1838 controllers = br->cfg->controller;
1839 n_controllers = br->cfg->n_controller;
1841 if (n_controllers == 1 && !strcmp(controllers[0]->target, "none")) {
1847 *controllersp = controllers;
1849 return n_controllers;
1852 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
1853 * those configured in 'br->cfg'. */
1855 bridge_add_del_ports(struct bridge *br)
1857 struct port *port, *next;
1858 struct shash_node *node;
1859 struct shash new_ports;
1862 /* Collect new ports. */
1863 shash_init(&new_ports);
1864 for (i = 0; i < br->cfg->n_ports; i++) {
1865 const char *name = br->cfg->ports[i]->name;
1866 if (!shash_add_once(&new_ports, name, br->cfg->ports[i])) {
1867 VLOG_WARN("bridge %s: %s specified twice as bridge port",
1871 if (bridge_get_controllers(br, NULL)
1872 && !shash_find(&new_ports, br->name)) {
1873 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
1874 br->name, br->name);
1876 br->synth_local_port.interfaces = &br->synth_local_ifacep;
1877 br->synth_local_port.n_interfaces = 1;
1878 br->synth_local_port.name = br->name;
1880 br->synth_local_iface.name = br->name;
1881 br->synth_local_iface.type = "internal";
1883 br->synth_local_ifacep = &br->synth_local_iface;
1885 shash_add(&new_ports, br->name, &br->synth_local_port);
1888 /* Get rid of deleted ports.
1889 * Get rid of deleted interfaces on ports that still exist.
1890 * Update 'cfg' of ports that still exist. */
1891 HMAP_FOR_EACH_SAFE (port, next, hmap_node, &br->ports) {
1892 port->cfg = shash_find_data(&new_ports, port->name);
1896 port_del_ifaces(port);
1900 /* Create new ports.
1901 * Add new interfaces to existing ports. */
1902 SHASH_FOR_EACH (node, &new_ports) {
1903 struct port *port = port_lookup(br, node->name);
1905 struct ovsrec_port *cfg = node->data;
1906 port = port_create(br, cfg);
1908 port_add_ifaces(port);
1909 if (list_is_empty(&port->ifaces)) {
1910 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
1911 br->name, port->name);
1915 shash_destroy(&new_ports);
1918 /* Initializes 'oc' appropriately as a management service controller for
1921 * The caller must free oc->target when it is no longer needed. */
1923 bridge_ofproto_controller_for_mgmt(const struct bridge *br,
1924 struct ofproto_controller *oc)
1926 oc->target = xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br->name);
1927 oc->max_backoff = 0;
1928 oc->probe_interval = 60;
1929 oc->band = OFPROTO_OUT_OF_BAND;
1931 oc->burst_limit = 0;
1934 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
1936 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller *c,
1937 struct ofproto_controller *oc)
1939 oc->target = c->target;
1940 oc->max_backoff = c->max_backoff ? *c->max_backoff / 1000 : 8;
1941 oc->probe_interval = c->inactivity_probe ? *c->inactivity_probe / 1000 : 5;
1942 oc->band = (!c->connection_mode || !strcmp(c->connection_mode, "in-band")
1943 ? OFPROTO_IN_BAND : OFPROTO_OUT_OF_BAND);
1944 oc->rate_limit = c->controller_rate_limit ? *c->controller_rate_limit : 0;
1945 oc->burst_limit = (c->controller_burst_limit
1946 ? *c->controller_burst_limit : 0);
1949 /* Configures the IP stack for 'br''s local interface properly according to the
1950 * configuration in 'c'. */
1952 bridge_configure_local_iface_netdev(struct bridge *br,
1953 struct ovsrec_controller *c)
1955 struct netdev *netdev;
1956 struct in_addr mask, gateway;
1958 struct iface *local_iface;
1961 /* If there's no local interface or no IP address, give up. */
1962 local_iface = iface_from_ofp_port(br, OFPP_LOCAL);
1963 if (!local_iface || !c->local_ip || !inet_aton(c->local_ip, &ip)) {
1967 /* Bring up the local interface. */
1968 netdev = local_iface->netdev;
1969 netdev_turn_flags_on(netdev, NETDEV_UP, true);
1971 /* Configure the IP address and netmask. */
1972 if (!c->local_netmask
1973 || !inet_aton(c->local_netmask, &mask)
1975 mask.s_addr = guess_netmask(ip.s_addr);
1977 if (!netdev_set_in4(netdev, ip, mask)) {
1978 VLOG_INFO("bridge %s: configured IP address "IP_FMT", netmask "IP_FMT,
1979 br->name, IP_ARGS(&ip.s_addr), IP_ARGS(&mask.s_addr));
1982 /* Configure the default gateway. */
1983 if (c->local_gateway
1984 && inet_aton(c->local_gateway, &gateway)
1985 && gateway.s_addr) {
1986 if (!netdev_add_router(netdev, gateway)) {
1987 VLOG_INFO("bridge %s: configured gateway "IP_FMT,
1988 br->name, IP_ARGS(&gateway.s_addr));
1993 /* Returns true if 'a' and 'b' are the same except that any number of slashes
1994 * in either string are treated as equal to any number of slashes in the other,
1995 * e.g. "x///y" is equal to "x/y". */
1997 equal_pathnames(const char *a, const char *b)
2001 a += strspn(a, "/");
2002 b += strspn(b, "/");
2003 } else if (*a == '\0') {
2014 bridge_configure_remotes(struct bridge *br,
2015 const struct sockaddr_in *managers, size_t n_managers)
2017 const char *disable_ib_str, *queue_id_str;
2018 bool disable_in_band = false;
2021 struct ovsrec_controller **controllers;
2022 size_t n_controllers;
2024 enum ofproto_fail_mode fail_mode;
2026 struct ofproto_controller *ocs;
2030 /* Check if we should disable in-band control on this bridge. */
2031 disable_ib_str = bridge_get_other_config(br->cfg, "disable-in-band");
2032 if (disable_ib_str && !strcmp(disable_ib_str, "true")) {
2033 disable_in_band = true;
2036 /* Set OpenFlow queue ID for in-band control. */
2037 queue_id_str = bridge_get_other_config(br->cfg, "in-band-queue");
2038 queue_id = queue_id_str ? strtol(queue_id_str, NULL, 10) : -1;
2039 ofproto_set_in_band_queue(br->ofproto, queue_id);
2041 if (disable_in_band) {
2042 ofproto_set_extra_in_band_remotes(br->ofproto, NULL, 0);
2044 ofproto_set_extra_in_band_remotes(br->ofproto, managers, n_managers);
2047 n_controllers = bridge_get_controllers(br, &controllers);
2049 ocs = xmalloc((n_controllers + 1) * sizeof *ocs);
2052 bridge_ofproto_controller_for_mgmt(br, &ocs[n_ocs++]);
2053 for (i = 0; i < n_controllers; i++) {
2054 struct ovsrec_controller *c = controllers[i];
2056 if (!strncmp(c->target, "punix:", 6)
2057 || !strncmp(c->target, "unix:", 5)) {
2058 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 5);
2061 whitelist = xasprintf("unix:%s/%s.controller",
2062 ovs_rundir(), br->name);
2063 if (!equal_pathnames(c->target, whitelist)) {
2064 /* Prevent remote ovsdb-server users from accessing arbitrary
2065 * Unix domain sockets and overwriting arbitrary local
2067 VLOG_ERR_RL(&rl, "bridge %s: Not adding Unix domain socket "
2068 "controller \"%s\" due to possibility for remote "
2069 "exploit. Instead, specify whitelisted \"%s\" or "
2070 "connect to \"unix:%s/%s.mgmt\" (which is always "
2071 "available without special configuration).",
2072 br->name, c->target, whitelist,
2073 ovs_rundir(), br->name);
2081 bridge_configure_local_iface_netdev(br, c);
2082 bridge_ofproto_controller_from_ovsrec(c, &ocs[n_ocs]);
2083 if (disable_in_band) {
2084 ocs[n_ocs].band = OFPROTO_OUT_OF_BAND;
2089 ofproto_set_controllers(br->ofproto, ocs, n_ocs);
2090 free(ocs[0].target); /* From bridge_ofproto_controller_for_mgmt(). */
2093 /* Set the fail-mode. */
2094 fail_mode = !br->cfg->fail_mode
2095 || !strcmp(br->cfg->fail_mode, "standalone")
2096 ? OFPROTO_FAIL_STANDALONE
2097 : OFPROTO_FAIL_SECURE;
2098 ofproto_set_fail_mode(br->ofproto, fail_mode);
2100 /* Configure OpenFlow controller connection snooping. */
2101 if (!ofproto_has_snoops(br->ofproto)) {
2105 sset_add_and_free(&snoops, xasprintf("punix:%s/%s.snoop",
2106 ovs_rundir(), br->name));
2107 ofproto_set_snoops(br->ofproto, &snoops);
2108 sset_destroy(&snoops);
2112 /* Port functions. */
2114 static struct port *
2115 port_create(struct bridge *br, const struct ovsrec_port *cfg)
2119 port = xzalloc(sizeof *port);
2121 port->name = xstrdup(cfg->name);
2123 list_init(&port->ifaces);
2125 hmap_insert(&br->ports, &port->hmap_node, hash_string(port->name, 0));
2127 VLOG_INFO("created port %s on bridge %s", port->name, br->name);
2133 get_port_other_config(const struct ovsrec_port *port, const char *key,
2134 const char *default_value)
2138 value = get_ovsrec_key_value(&port->header_, &ovsrec_port_col_other_config,
2140 return value ? value : default_value;
2144 get_interface_other_config(const struct ovsrec_interface *iface,
2145 const char *key, const char *default_value)
2149 value = get_ovsrec_key_value(&iface->header_,
2150 &ovsrec_interface_col_other_config, key);
2151 return value ? value : default_value;
2154 /* Deletes interfaces from 'port' that are no longer configured for it. */
2156 port_del_ifaces(struct port *port)
2158 struct iface *iface, *next;
2159 struct sset new_ifaces;
2162 /* Collect list of new interfaces. */
2163 sset_init(&new_ifaces);
2164 for (i = 0; i < port->cfg->n_interfaces; i++) {
2165 const char *name = port->cfg->interfaces[i]->name;
2166 const char *type = port->cfg->interfaces[i]->name;
2167 if (strcmp(type, "null")) {
2168 sset_add(&new_ifaces, name);
2172 /* Get rid of deleted interfaces. */
2173 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2174 if (!sset_contains(&new_ifaces, iface->name)) {
2175 iface_destroy(iface);
2179 sset_destroy(&new_ifaces);
2182 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2185 port_add_ifaces(struct port *port)
2187 struct shash new_ifaces;
2188 struct shash_node *node;
2191 /* Collect new ifaces. */
2192 shash_init(&new_ifaces);
2193 for (i = 0; i < port->cfg->n_interfaces; i++) {
2194 const struct ovsrec_interface *cfg = port->cfg->interfaces[i];
2195 if (strcmp(cfg->type, "null")
2196 && !shash_add_once(&new_ifaces, cfg->name, cfg)) {
2197 VLOG_WARN("port %s: %s specified twice as port interface",
2198 port->name, cfg->name);
2199 iface_clear_db_record(cfg);
2203 /* Create new interfaces.
2204 * Update interface types and 'cfg' members. */
2205 SHASH_FOR_EACH (node, &new_ifaces) {
2206 const struct ovsrec_interface *cfg = node->data;
2207 const char *iface_name = node->name;
2208 struct iface *iface;
2210 iface = iface_lookup(port->bridge, iface_name);
2212 iface = iface_create(port, cfg);
2217 /* Determine interface type. The local port always has type
2218 * "internal". Other ports take their type from the database and
2219 * default to "system" if none is specified. */
2220 iface->type = (!strcmp(iface_name, port->bridge->name) ? "internal"
2221 : cfg->type[0] ? cfg->type
2224 shash_destroy(&new_ifaces);
2228 port_destroy(struct port *port)
2231 struct bridge *br = port->bridge;
2232 struct iface *iface, *next;
2235 ofproto_bundle_unregister(br->ofproto, port);
2238 LIST_FOR_EACH_SAFE (iface, next, port_elem, &port->ifaces) {
2239 iface_destroy(iface);
2242 hmap_remove(&br->ports, &port->hmap_node);
2244 VLOG_INFO("destroyed port %s on bridge %s", port->name, br->name);
2251 static struct port *
2252 port_lookup(const struct bridge *br, const char *name)
2256 HMAP_FOR_EACH_WITH_HASH (port, hmap_node, hash_string(name, 0),
2258 if (!strcmp(port->name, name)) {
2266 enable_lacp(struct port *port, bool *activep)
2268 if (!port->cfg->lacp) {
2269 /* XXX when LACP implementation has been sufficiently tested, enable by
2270 * default and make active on bonded ports. */
2272 } else if (!strcmp(port->cfg->lacp, "off")) {
2274 } else if (!strcmp(port->cfg->lacp, "active")) {
2277 } else if (!strcmp(port->cfg->lacp, "passive")) {
2281 VLOG_WARN("port %s: unknown LACP mode %s",
2282 port->name, port->cfg->lacp);
2287 static struct lacp_settings *
2288 port_configure_lacp(struct port *port, struct lacp_settings *s)
2290 const char *lacp_time;
2291 long long int custom_time;
2294 if (!enable_lacp(port, &s->active)) {
2298 s->name = port->name;
2299 memcpy(s->id, port->bridge->ea, ETH_ADDR_LEN);
2301 /* Prefer bondable links if unspecified. */
2302 priority = atoi(get_port_other_config(port->cfg, "lacp-system-priority",
2304 s->priority = (priority > 0 && priority <= UINT16_MAX
2306 : UINT16_MAX - !list_is_short(&port->ifaces));
2308 s->heartbeat = !strcmp(get_port_other_config(port->cfg,
2313 lacp_time = get_port_other_config(port->cfg, "lacp-time", "slow");
2314 custom_time = atoi(lacp_time);
2315 if (!strcmp(lacp_time, "fast")) {
2316 s->lacp_time = LACP_TIME_FAST;
2317 } else if (!strcmp(lacp_time, "slow")) {
2318 s->lacp_time = LACP_TIME_SLOW;
2319 } else if (custom_time > 0) {
2320 s->lacp_time = LACP_TIME_CUSTOM;
2321 s->custom_time = custom_time;
2323 s->lacp_time = LACP_TIME_SLOW;
2330 iface_configure_lacp(struct iface *iface, struct lacp_slave_settings *s)
2332 int priority, portid, key;
2334 portid = atoi(get_interface_other_config(iface->cfg, "lacp-port-id", "0"));
2335 priority = atoi(get_interface_other_config(iface->cfg,
2336 "lacp-port-priority", "0"));
2337 key = atoi(get_interface_other_config(iface->cfg, "lacp-aggregation-key",
2340 if (portid <= 0 || portid > UINT16_MAX) {
2341 portid = iface->ofp_port;
2344 if (priority <= 0 || priority > UINT16_MAX) {
2345 priority = UINT16_MAX;
2348 if (key < 0 || key > UINT16_MAX) {
2352 s->name = iface->name;
2354 s->priority = priority;
2359 port_configure_bond(struct port *port, struct bond_settings *s,
2360 uint32_t *bond_stable_ids)
2362 const char *detect_s;
2363 struct iface *iface;
2364 int miimon_interval;
2367 s->name = port->name;
2368 s->balance = BM_SLB;
2369 if (port->cfg->bond_mode
2370 && !bond_mode_from_string(&s->balance, port->cfg->bond_mode)) {
2371 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2372 port->name, port->cfg->bond_mode,
2373 bond_mode_to_string(s->balance));
2375 if (s->balance == BM_SLB && port->bridge->cfg->n_flood_vlans) {
2376 VLOG_WARN("port %s: SLB bonds are incompatible with flood_vlans, "
2377 "please use another bond type or disable flood_vlans",
2381 miimon_interval = atoi(get_port_other_config(port->cfg,
2382 "bond-miimon-interval", "0"));
2383 if (miimon_interval <= 0) {
2384 miimon_interval = 200;
2387 detect_s = get_port_other_config(port->cfg, "bond-detect-mode", "carrier");
2388 if (!strcmp(detect_s, "carrier")) {
2389 miimon_interval = 0;
2390 } else if (strcmp(detect_s, "miimon")) {
2391 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2392 "defaulting to carrier", port->name, detect_s);
2393 miimon_interval = 0;
2396 s->up_delay = MAX(0, port->cfg->bond_updelay);
2397 s->down_delay = MAX(0, port->cfg->bond_downdelay);
2398 s->basis = atoi(get_port_other_config(port->cfg, "bond-hash-basis", "0"));
2399 s->rebalance_interval = atoi(
2400 get_port_other_config(port->cfg, "bond-rebalance-interval", "10000"));
2401 if (s->rebalance_interval < 1000) {
2402 s->rebalance_interval = 1000;
2405 s->fake_iface = port->cfg->bond_fake_iface;
2408 LIST_FOR_EACH (iface, port_elem, &port->ifaces) {
2409 long long stable_id;
2411 stable_id = atoll(get_interface_other_config(iface->cfg,
2412 "bond-stable-id", "0"));
2413 if (stable_id <= 0 || stable_id >= UINT32_MAX) {
2414 stable_id = iface->ofp_port;
2416 bond_stable_ids[i++] = stable_id;
2418 netdev_set_miimon_interval(iface->netdev, miimon_interval);
2422 /* Interface functions. */
2424 static struct iface *
2425 iface_create(struct port *port, const struct ovsrec_interface *if_cfg)
2427 struct bridge *br = port->bridge;
2428 struct iface *iface;
2429 char *name = if_cfg->name;
2431 iface = xzalloc(sizeof *iface);
2433 iface->name = xstrdup(name);
2434 iface->ofp_port = -1;
2435 iface->tag = tag_create_random();
2436 iface->netdev = NULL;
2437 iface->cfg = if_cfg;
2439 hmap_insert(&br->iface_by_name, &iface->name_node, hash_string(name, 0));
2441 list_push_back(&port->ifaces, &iface->port_elem);
2443 VLOG_DBG("attached network device %s to port %s", iface->name, port->name);
2449 iface_destroy(struct iface *iface)
2452 struct port *port = iface->port;
2453 struct bridge *br = port->bridge;
2455 if (br->ofproto && iface->ofp_port >= 0) {
2456 ofproto_port_unregister(br->ofproto, iface->ofp_port);
2459 if (iface->ofp_port >= 0) {
2460 hmap_remove(&br->ifaces, &iface->ofp_port_node);
2463 list_remove(&iface->port_elem);
2464 hmap_remove(&br->iface_by_name, &iface->name_node);
2466 netdev_close(iface->netdev);
2473 static struct iface *
2474 iface_lookup(const struct bridge *br, const char *name)
2476 struct iface *iface;
2478 HMAP_FOR_EACH_WITH_HASH (iface, name_node, hash_string(name, 0),
2479 &br->iface_by_name) {
2480 if (!strcmp(iface->name, name)) {
2488 static struct iface *
2489 iface_find(const char *name)
2491 const struct bridge *br;
2493 HMAP_FOR_EACH (br, node, &all_bridges) {
2494 struct iface *iface = iface_lookup(br, name);
2503 static struct iface *
2504 iface_from_ofp_port(const struct bridge *br, uint16_t ofp_port)
2506 struct iface *iface;
2508 HMAP_FOR_EACH_IN_BUCKET (iface, ofp_port_node,
2509 hash_int(ofp_port, 0), &br->ifaces) {
2510 if (iface->ofp_port == ofp_port) {
2517 /* Set Ethernet address of 'iface', if one is specified in the configuration
2520 iface_set_mac(struct iface *iface)
2522 uint8_t ea[ETH_ADDR_LEN];
2524 if (!strcmp(iface->type, "internal")
2525 && iface->cfg->mac && eth_addr_from_string(iface->cfg->mac, ea)) {
2526 if (iface->ofp_port == OFPP_LOCAL) {
2527 VLOG_ERR("interface %s: ignoring mac in Interface record "
2528 "(use Bridge record to set local port's mac)",
2530 } else if (eth_addr_is_multicast(ea)) {
2531 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2534 int error = netdev_set_etheraddr(iface->netdev, ea);
2536 VLOG_ERR("interface %s: setting MAC failed (%s)",
2537 iface->name, strerror(error));
2543 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2545 iface_set_ofport(const struct ovsrec_interface *if_cfg, int64_t ofport)
2547 if (if_cfg && !ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2548 ovsrec_interface_set_ofport(if_cfg, &ofport, 1);
2552 /* Clears all of the fields in 'if_cfg' that indicate interface status, and
2553 * sets the "ofport" field to -1.
2555 * This is appropriate when 'if_cfg''s interface cannot be created or is
2556 * otherwise invalid. */
2558 iface_clear_db_record(const struct ovsrec_interface *if_cfg)
2560 if (!ovsdb_idl_row_is_synthetic(&if_cfg->header_)) {
2561 iface_set_ofport(if_cfg, -1);
2562 ovsrec_interface_set_status(if_cfg, NULL, NULL, 0);
2563 ovsrec_interface_set_admin_state(if_cfg, NULL);
2564 ovsrec_interface_set_duplex(if_cfg, NULL);
2565 ovsrec_interface_set_link_speed(if_cfg, NULL, 0);
2566 ovsrec_interface_set_link_state(if_cfg, NULL);
2567 ovsrec_interface_set_mtu(if_cfg, NULL, 0);
2568 ovsrec_interface_set_cfm_fault(if_cfg, NULL, 0);
2569 ovsrec_interface_set_cfm_remote_mpids(if_cfg, NULL, 0);
2570 ovsrec_interface_set_lacp_current(if_cfg, NULL, 0);
2571 ovsrec_interface_set_statistics(if_cfg, NULL, NULL, 0);
2575 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2577 * The value strings in '*shash' are taken directly from values[], not copied,
2578 * so the caller should not modify or free them. */
2580 shash_from_ovs_idl_map(char **keys, char **values, size_t n,
2581 struct shash *shash)
2586 for (i = 0; i < n; i++) {
2587 shash_add(shash, keys[i], values[i]);
2591 /* Creates 'keys' and 'values' arrays from 'shash'.
2593 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2594 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2595 * are populated with with strings taken directly from 'shash' and thus have
2596 * the same ownership of the key-value pairs in shash.
2599 shash_to_ovs_idl_map(struct shash *shash,
2600 char ***keys, char ***values, size_t *n)
2604 struct shash_node *sn;
2606 count = shash_count(shash);
2608 k = xmalloc(count * sizeof *k);
2609 v = xmalloc(count * sizeof *v);
2612 SHASH_FOR_EACH(sn, shash) {
2623 struct iface_delete_queues_cbdata {
2624 struct netdev *netdev;
2625 const struct ovsdb_datum *queues;
2629 queue_ids_include(const struct ovsdb_datum *queues, int64_t target)
2631 union ovsdb_atom atom;
2633 atom.integer = target;
2634 return ovsdb_datum_find_key(queues, &atom, OVSDB_TYPE_INTEGER) != UINT_MAX;
2638 iface_delete_queues(unsigned int queue_id,
2639 const struct shash *details OVS_UNUSED, void *cbdata_)
2641 struct iface_delete_queues_cbdata *cbdata = cbdata_;
2643 if (!queue_ids_include(cbdata->queues, queue_id)) {
2644 netdev_delete_queue(cbdata->netdev, queue_id);
2649 iface_configure_qos(struct iface *iface, const struct ovsrec_qos *qos)
2651 if (!qos || qos->type[0] == '\0' || qos->n_queues < 1) {
2652 netdev_set_qos(iface->netdev, NULL, NULL);
2654 struct iface_delete_queues_cbdata cbdata;
2655 struct shash details;
2659 /* Configure top-level Qos for 'iface'. */
2660 shash_from_ovs_idl_map(qos->key_other_config, qos->value_other_config,
2661 qos->n_other_config, &details);
2662 netdev_set_qos(iface->netdev, qos->type, &details);
2663 shash_destroy(&details);
2665 /* Deconfigure queues that were deleted. */
2666 cbdata.netdev = iface->netdev;
2667 cbdata.queues = ovsrec_qos_get_queues(qos, OVSDB_TYPE_INTEGER,
2669 netdev_dump_queues(iface->netdev, iface_delete_queues, &cbdata);
2671 /* Configure queues for 'iface'. */
2673 for (i = 0; i < qos->n_queues; i++) {
2674 const struct ovsrec_queue *queue = qos->value_queues[i];
2675 unsigned int queue_id = qos->key_queues[i];
2677 if (queue_id == 0) {
2681 shash_from_ovs_idl_map(queue->key_other_config,
2682 queue->value_other_config,
2683 queue->n_other_config, &details);
2684 netdev_set_queue(iface->netdev, queue_id, &details);
2685 shash_destroy(&details);
2688 static struct vlog_rate_limit rl = VLOG_RATE_LIMIT_INIT(1, 1);
2689 VLOG_WARN_RL(&rl, "interface %s: QoS configured without a default "
2690 "queue (queue 0). Packets not directed to a "
2691 "correctly configured queue may be dropped.",
2696 netdev_set_policing(iface->netdev,
2697 iface->cfg->ingress_policing_rate,
2698 iface->cfg->ingress_policing_burst);
2702 iface_configure_cfm(struct iface *iface)
2704 const struct ovsrec_interface *cfg = iface->cfg;
2705 const char *extended_str, *opstate_str;
2706 struct cfm_settings s;
2708 if (!cfg->n_cfm_mpid) {
2709 ofproto_port_clear_cfm(iface->port->bridge->ofproto, iface->ofp_port);
2713 s.mpid = *cfg->cfm_mpid;
2714 s.interval = atoi(get_interface_other_config(iface->cfg, "cfm_interval",
2716 if (s.interval <= 0) {
2720 extended_str = get_interface_other_config(iface->cfg, "cfm_extended",
2722 s.extended = !strcasecmp("true", extended_str);
2724 opstate_str = get_interface_other_config(iface->cfg, "cfm_opstate", "up");
2725 s.opup = !strcasecmp("up", opstate_str);
2727 ofproto_port_set_cfm(iface->port->bridge->ofproto, iface->ofp_port, &s);
2730 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
2731 * instead of obtaining it from the database. */
2733 iface_is_synthetic(const struct iface *iface)
2735 return ovsdb_idl_row_is_synthetic(&iface->cfg->header_);
2738 /* Port mirroring. */
2740 static struct mirror *
2741 mirror_find_by_uuid(struct bridge *br, const struct uuid *uuid)
2745 HMAP_FOR_EACH_IN_BUCKET (m, hmap_node, uuid_hash(uuid), &br->mirrors) {
2746 if (uuid_equals(uuid, &m->uuid)) {
2754 bridge_configure_mirrors(struct bridge *br)
2756 const struct ovsdb_datum *mc;
2757 unsigned long *flood_vlans;
2758 struct mirror *m, *next;
2761 /* Get rid of deleted mirrors. */
2762 mc = ovsrec_bridge_get_mirrors(br->cfg, OVSDB_TYPE_UUID);
2763 HMAP_FOR_EACH_SAFE (m, next, hmap_node, &br->mirrors) {
2764 union ovsdb_atom atom;
2766 atom.uuid = m->uuid;
2767 if (ovsdb_datum_find_key(mc, &atom, OVSDB_TYPE_UUID) == UINT_MAX) {
2772 /* Add new mirrors and reconfigure existing ones. */
2773 for (i = 0; i < br->cfg->n_mirrors; i++) {
2774 const struct ovsrec_mirror *cfg = br->cfg->mirrors[i];
2775 struct mirror *m = mirror_find_by_uuid(br, &cfg->header_.uuid);
2777 m = mirror_create(br, cfg);
2779 if (!mirror_configure(m, cfg)) {
2784 /* Update flooded vlans (for RSPAN). */
2785 flood_vlans = vlan_bitmap_from_array(br->cfg->flood_vlans,
2786 br->cfg->n_flood_vlans);
2787 ofproto_set_flood_vlans(br->ofproto, flood_vlans);
2788 bitmap_free(flood_vlans);
2791 static struct mirror *
2792 mirror_create(struct bridge *br, const struct ovsrec_mirror *cfg)
2796 m = xzalloc(sizeof *m);
2797 m->uuid = cfg->header_.uuid;
2798 hmap_insert(&br->mirrors, &m->hmap_node, uuid_hash(&m->uuid));
2800 m->name = xstrdup(cfg->name);
2806 mirror_destroy(struct mirror *m)
2809 struct bridge *br = m->bridge;
2812 ofproto_mirror_unregister(br->ofproto, m);
2815 hmap_remove(&br->mirrors, &m->hmap_node);
2822 mirror_collect_ports(struct mirror *m,
2823 struct ovsrec_port **in_ports, int n_in_ports,
2824 void ***out_portsp, size_t *n_out_portsp)
2826 void **out_ports = xmalloc(n_in_ports * sizeof *out_ports);
2827 size_t n_out_ports = 0;
2830 for (i = 0; i < n_in_ports; i++) {
2831 const char *name = in_ports[i]->name;
2832 struct port *port = port_lookup(m->bridge, name);
2834 out_ports[n_out_ports++] = port;
2836 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
2837 "port %s", m->bridge->name, m->name, name);
2840 *out_portsp = out_ports;
2841 *n_out_portsp = n_out_ports;
2845 mirror_configure(struct mirror *m, const struct ovsrec_mirror *cfg)
2847 struct ofproto_mirror_settings s;
2850 if (strcmp(cfg->name, m->name)) {
2852 m->name = xstrdup(cfg->name);
2856 /* Get output port or VLAN. */
2857 if (cfg->output_port) {
2858 s.out_bundle = port_lookup(m->bridge, cfg->output_port->name);
2859 if (!s.out_bundle) {
2860 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
2861 m->bridge->name, m->name);
2864 s.out_vlan = UINT16_MAX;
2866 if (cfg->output_vlan) {
2867 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
2868 "output vlan; ignoring output vlan",
2869 m->bridge->name, m->name);
2871 } else if (cfg->output_vlan) {
2872 /* The database should prevent invalid VLAN values. */
2873 s.out_bundle = NULL;
2874 s.out_vlan = *cfg->output_vlan;
2876 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
2877 m->bridge->name, m->name);
2881 /* Get port selection. */
2882 if (cfg->select_all) {
2883 size_t n_ports = hmap_count(&m->bridge->ports);
2884 void **ports = xmalloc(n_ports * sizeof *ports);
2889 HMAP_FOR_EACH (port, hmap_node, &m->bridge->ports) {
2899 /* Get ports, dropping ports that don't exist.
2900 * The IDL ensures that there are no duplicates. */
2901 mirror_collect_ports(m, cfg->select_src_port, cfg->n_select_src_port,
2902 &s.srcs, &s.n_srcs);
2903 mirror_collect_ports(m, cfg->select_dst_port, cfg->n_select_dst_port,
2904 &s.dsts, &s.n_dsts);
2907 /* Get VLAN selection. */
2908 s.src_vlans = vlan_bitmap_from_array(cfg->select_vlan, cfg->n_select_vlan);
2911 ofproto_mirror_register(m->bridge->ofproto, m, &s);
2914 if (s.srcs != s.dsts) {