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));
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
));
1632 eth_addr_nicira_random(br
->default_ea
);
1634 hmap_init(&br
->ports
);
1635 hmap_init(&br
->ifaces
);
1636 hmap_init(&br
->iface_by_name
);
1637 hmap_init(&br
->mirrors
);
1639 hmap_insert(&all_bridges
, &br
->node
, hash_string(br
->name
, 0));
1643 bridge_destroy(struct bridge
*br
)
1646 struct mirror
*mirror
, *next_mirror
;
1647 struct port
*port
, *next_port
;
1649 HMAP_FOR_EACH_SAFE (port
, next_port
, hmap_node
, &br
->ports
) {
1652 HMAP_FOR_EACH_SAFE (mirror
, next_mirror
, hmap_node
, &br
->mirrors
) {
1653 mirror_destroy(mirror
);
1655 hmap_remove(&all_bridges
, &br
->node
);
1656 ofproto_destroy(br
->ofproto
);
1657 hmap_destroy(&br
->ifaces
);
1658 hmap_destroy(&br
->ports
);
1659 hmap_destroy(&br
->iface_by_name
);
1660 hmap_destroy(&br
->mirrors
);
1667 static struct bridge
*
1668 bridge_lookup(const char *name
)
1672 HMAP_FOR_EACH_WITH_HASH (br
, node
, hash_string(name
, 0), &all_bridges
) {
1673 if (!strcmp(br
->name
, name
)) {
1680 /* Handle requests for a listing of all flows known by the OpenFlow
1681 * stack, including those normally hidden. */
1683 bridge_unixctl_dump_flows(struct unixctl_conn
*conn
,
1684 const char *args
, void *aux OVS_UNUSED
)
1689 br
= bridge_lookup(args
);
1691 unixctl_command_reply(conn
, 501, "Unknown bridge");
1696 ofproto_get_all_flows(br
->ofproto
, &results
);
1698 unixctl_command_reply(conn
, 200, ds_cstr(&results
));
1699 ds_destroy(&results
);
1702 /* "bridge/reconnect [BRIDGE]": makes BRIDGE drop all of its controller
1703 * connections and reconnect. If BRIDGE is not specified, then all bridges
1704 * drop their controller connections and reconnect. */
1706 bridge_unixctl_reconnect(struct unixctl_conn
*conn
,
1707 const char *args
, void *aux OVS_UNUSED
)
1710 if (args
[0] != '\0') {
1711 br
= bridge_lookup(args
);
1713 unixctl_command_reply(conn
, 501, "Unknown bridge");
1716 ofproto_reconnect_controllers(br
->ofproto
);
1718 HMAP_FOR_EACH (br
, node
, &all_bridges
) {
1719 ofproto_reconnect_controllers(br
->ofproto
);
1722 unixctl_command_reply(conn
, 200, NULL
);
1726 bridge_get_controllers(const struct bridge
*br
,
1727 struct ovsrec_controller
***controllersp
)
1729 struct ovsrec_controller
**controllers
;
1730 size_t n_controllers
;
1732 controllers
= br
->cfg
->controller
;
1733 n_controllers
= br
->cfg
->n_controller
;
1735 if (n_controllers
== 1 && !strcmp(controllers
[0]->target
, "none")) {
1741 *controllersp
= controllers
;
1743 return n_controllers
;
1746 /* Adds and deletes "struct port"s and "struct iface"s under 'br' to match
1747 * those configured in 'br->cfg'. */
1749 bridge_add_del_ports(struct bridge
*br
)
1751 struct port
*port
, *next
;
1752 struct shash_node
*node
;
1753 struct shash new_ports
;
1756 /* Collect new ports. */
1757 shash_init(&new_ports
);
1758 for (i
= 0; i
< br
->cfg
->n_ports
; i
++) {
1759 const char *name
= br
->cfg
->ports
[i
]->name
;
1760 if (!shash_add_once(&new_ports
, name
, br
->cfg
->ports
[i
])) {
1761 VLOG_WARN("bridge %s: %s specified twice as bridge port",
1765 if (bridge_get_controllers(br
, NULL
)
1766 && !shash_find(&new_ports
, br
->name
)) {
1767 VLOG_WARN("bridge %s: no port named %s, synthesizing one",
1768 br
->name
, br
->name
);
1770 br
->synth_local_port
.interfaces
= &br
->synth_local_ifacep
;
1771 br
->synth_local_port
.n_interfaces
= 1;
1772 br
->synth_local_port
.name
= br
->name
;
1774 br
->synth_local_iface
.name
= br
->name
;
1775 br
->synth_local_iface
.type
= "internal";
1777 br
->synth_local_ifacep
= &br
->synth_local_iface
;
1779 shash_add(&new_ports
, br
->name
, &br
->synth_local_port
);
1782 /* Get rid of deleted ports.
1783 * Get rid of deleted interfaces on ports that still exist.
1784 * Update 'cfg' of ports that still exist. */
1785 HMAP_FOR_EACH_SAFE (port
, next
, hmap_node
, &br
->ports
) {
1786 port
->cfg
= shash_find_data(&new_ports
, port
->name
);
1790 port_del_ifaces(port
);
1794 /* Create new ports.
1795 * Add new interfaces to existing ports. */
1796 SHASH_FOR_EACH (node
, &new_ports
) {
1797 struct port
*port
= port_lookup(br
, node
->name
);
1799 struct ovsrec_port
*cfg
= node
->data
;
1800 port
= port_create(br
, cfg
);
1802 port_add_ifaces(port
);
1803 if (list_is_empty(&port
->ifaces
)) {
1804 VLOG_WARN("bridge %s: port %s has no interfaces, dropping",
1805 br
->name
, port
->name
);
1809 shash_destroy(&new_ports
);
1812 /* Initializes 'oc' appropriately as a management service controller for
1815 * The caller must free oc->target when it is no longer needed. */
1817 bridge_ofproto_controller_for_mgmt(const struct bridge
*br
,
1818 struct ofproto_controller
*oc
)
1820 oc
->target
= xasprintf("punix:%s/%s.mgmt", ovs_rundir(), br
->name
);
1821 oc
->max_backoff
= 0;
1822 oc
->probe_interval
= 60;
1823 oc
->band
= OFPROTO_OUT_OF_BAND
;
1825 oc
->burst_limit
= 0;
1828 /* Converts ovsrec_controller 'c' into an ofproto_controller in 'oc'. */
1830 bridge_ofproto_controller_from_ovsrec(const struct ovsrec_controller
*c
,
1831 struct ofproto_controller
*oc
)
1833 oc
->target
= c
->target
;
1834 oc
->max_backoff
= c
->max_backoff
? *c
->max_backoff
/ 1000 : 8;
1835 oc
->probe_interval
= c
->inactivity_probe
? *c
->inactivity_probe
/ 1000 : 5;
1836 oc
->band
= (!c
->connection_mode
|| !strcmp(c
->connection_mode
, "in-band")
1837 ? OFPROTO_IN_BAND
: OFPROTO_OUT_OF_BAND
);
1838 oc
->rate_limit
= c
->controller_rate_limit
? *c
->controller_rate_limit
: 0;
1839 oc
->burst_limit
= (c
->controller_burst_limit
1840 ? *c
->controller_burst_limit
: 0);
1843 /* Configures the IP stack for 'br''s local interface properly according to the
1844 * configuration in 'c'. */
1846 bridge_configure_local_iface_netdev(struct bridge
*br
,
1847 struct ovsrec_controller
*c
)
1849 struct netdev
*netdev
;
1850 struct in_addr mask
, gateway
;
1852 struct iface
*local_iface
;
1855 /* If there's no local interface or no IP address, give up. */
1856 local_iface
= iface_from_ofp_port(br
, OFPP_LOCAL
);
1857 if (!local_iface
|| !c
->local_ip
|| !inet_aton(c
->local_ip
, &ip
)) {
1861 /* Bring up the local interface. */
1862 netdev
= local_iface
->netdev
;
1863 netdev_turn_flags_on(netdev
, NETDEV_UP
, true);
1865 /* Configure the IP address and netmask. */
1866 if (!c
->local_netmask
1867 || !inet_aton(c
->local_netmask
, &mask
)
1869 mask
.s_addr
= guess_netmask(ip
.s_addr
);
1871 if (!netdev_set_in4(netdev
, ip
, mask
)) {
1872 VLOG_INFO("bridge %s: configured IP address "IP_FMT
", netmask "IP_FMT
,
1873 br
->name
, IP_ARGS(&ip
.s_addr
), IP_ARGS(&mask
.s_addr
));
1876 /* Configure the default gateway. */
1877 if (c
->local_gateway
1878 && inet_aton(c
->local_gateway
, &gateway
)
1879 && gateway
.s_addr
) {
1880 if (!netdev_add_router(netdev
, gateway
)) {
1881 VLOG_INFO("bridge %s: configured gateway "IP_FMT
,
1882 br
->name
, IP_ARGS(&gateway
.s_addr
));
1888 bridge_configure_remotes(struct bridge
*br
,
1889 const struct sockaddr_in
*managers
, size_t n_managers
)
1891 const char *disable_ib_str
, *queue_id_str
;
1892 bool disable_in_band
= false;
1895 struct ovsrec_controller
**controllers
;
1896 size_t n_controllers
;
1898 enum ofproto_fail_mode fail_mode
;
1900 struct ofproto_controller
*ocs
;
1904 /* Check if we should disable in-band control on this bridge. */
1905 disable_ib_str
= bridge_get_other_config(br
->cfg
, "disable-in-band");
1906 if (disable_ib_str
&& !strcmp(disable_ib_str
, "true")) {
1907 disable_in_band
= true;
1910 /* Set OpenFlow queue ID for in-band control. */
1911 queue_id_str
= bridge_get_other_config(br
->cfg
, "in-band-queue");
1912 queue_id
= queue_id_str
? strtol(queue_id_str
, NULL
, 10) : -1;
1913 ofproto_set_in_band_queue(br
->ofproto
, queue_id
);
1915 if (disable_in_band
) {
1916 ofproto_set_extra_in_band_remotes(br
->ofproto
, NULL
, 0);
1918 ofproto_set_extra_in_band_remotes(br
->ofproto
, managers
, n_managers
);
1921 n_controllers
= bridge_get_controllers(br
, &controllers
);
1923 ocs
= xmalloc((n_controllers
+ 1) * sizeof *ocs
);
1926 bridge_ofproto_controller_for_mgmt(br
, &ocs
[n_ocs
++]);
1927 for (i
= 0; i
< n_controllers
; i
++) {
1928 struct ovsrec_controller
*c
= controllers
[i
];
1930 if (!strncmp(c
->target
, "punix:", 6)
1931 || !strncmp(c
->target
, "unix:", 5)) {
1932 static struct vlog_rate_limit rl
= VLOG_RATE_LIMIT_INIT(1, 5);
1934 /* Prevent remote ovsdb-server users from accessing arbitrary Unix
1935 * domain sockets and overwriting arbitrary local files. */
1936 VLOG_ERR_RL(&rl
, "bridge %s: not adding Unix domain socket "
1937 "controller \"%s\" due to possibility for remote "
1938 "exploit", br
->name
, c
->target
);
1942 bridge_configure_local_iface_netdev(br
, c
);
1943 bridge_ofproto_controller_from_ovsrec(c
, &ocs
[n_ocs
]);
1944 if (disable_in_band
) {
1945 ocs
[n_ocs
].band
= OFPROTO_OUT_OF_BAND
;
1950 ofproto_set_controllers(br
->ofproto
, ocs
, n_ocs
);
1951 free(ocs
[0].target
); /* From bridge_ofproto_controller_for_mgmt(). */
1954 /* Set the fail-mode. */
1955 fail_mode
= !br
->cfg
->fail_mode
1956 || !strcmp(br
->cfg
->fail_mode
, "standalone")
1957 ? OFPROTO_FAIL_STANDALONE
1958 : OFPROTO_FAIL_SECURE
;
1959 ofproto_set_fail_mode(br
->ofproto
, fail_mode
);
1961 /* Configure OpenFlow controller connection snooping. */
1962 if (!ofproto_has_snoops(br
->ofproto
)) {
1966 sset_add_and_free(&snoops
, xasprintf("punix:%s/%s.snoop",
1967 ovs_rundir(), br
->name
));
1968 ofproto_set_snoops(br
->ofproto
, &snoops
);
1969 sset_destroy(&snoops
);
1973 /* Port functions. */
1975 static struct port
*
1976 port_create(struct bridge
*br
, const struct ovsrec_port
*cfg
)
1980 port
= xzalloc(sizeof *port
);
1982 port
->name
= xstrdup(cfg
->name
);
1984 list_init(&port
->ifaces
);
1986 hmap_insert(&br
->ports
, &port
->hmap_node
, hash_string(port
->name
, 0));
1988 VLOG_INFO("created port %s on bridge %s", port
->name
, br
->name
);
1994 get_port_other_config(const struct ovsrec_port
*port
, const char *key
,
1995 const char *default_value
)
1999 value
= get_ovsrec_key_value(&port
->header_
, &ovsrec_port_col_other_config
,
2001 return value
? value
: default_value
;
2005 get_interface_other_config(const struct ovsrec_interface
*iface
,
2006 const char *key
, const char *default_value
)
2010 value
= get_ovsrec_key_value(&iface
->header_
,
2011 &ovsrec_interface_col_other_config
, key
);
2012 return value
? value
: default_value
;
2015 /* Deletes interfaces from 'port' that are no longer configured for it. */
2017 port_del_ifaces(struct port
*port
)
2019 struct iface
*iface
, *next
;
2020 struct sset new_ifaces
;
2023 /* Collect list of new interfaces. */
2024 sset_init(&new_ifaces
);
2025 for (i
= 0; i
< port
->cfg
->n_interfaces
; i
++) {
2026 const char *name
= port
->cfg
->interfaces
[i
]->name
;
2027 const char *type
= port
->cfg
->interfaces
[i
]->name
;
2028 if (strcmp(type
, "null")) {
2029 sset_add(&new_ifaces
, name
);
2033 /* Get rid of deleted interfaces. */
2034 LIST_FOR_EACH_SAFE (iface
, next
, port_elem
, &port
->ifaces
) {
2035 if (!sset_contains(&new_ifaces
, iface
->name
)) {
2036 iface_destroy(iface
);
2040 sset_destroy(&new_ifaces
);
2043 /* Adds new interfaces to 'port' and updates 'type' and 'cfg' members of
2046 port_add_ifaces(struct port
*port
)
2048 struct shash new_ifaces
;
2049 struct shash_node
*node
;
2052 /* Collect new ifaces. */
2053 shash_init(&new_ifaces
);
2054 for (i
= 0; i
< port
->cfg
->n_interfaces
; i
++) {
2055 const struct ovsrec_interface
*cfg
= port
->cfg
->interfaces
[i
];
2056 if (strcmp(cfg
->type
, "null")
2057 && !shash_add_once(&new_ifaces
, cfg
->name
, cfg
)) {
2058 VLOG_WARN("port %s: %s specified twice as port interface",
2059 port
->name
, cfg
->name
);
2060 iface_set_ofport(cfg
, -1);
2064 /* Create new interfaces.
2065 * Update interface types and 'cfg' members. */
2066 SHASH_FOR_EACH (node
, &new_ifaces
) {
2067 const struct ovsrec_interface
*cfg
= node
->data
;
2068 const char *iface_name
= node
->name
;
2069 struct iface
*iface
;
2071 iface
= iface_lookup(port
->bridge
, iface_name
);
2073 iface
= iface_create(port
, cfg
);
2078 /* Determine interface type. The local port always has type
2079 * "internal". Other ports take their type from the database and
2080 * default to "system" if none is specified. */
2081 iface
->type
= (!strcmp(iface_name
, port
->bridge
->name
) ? "internal"
2082 : cfg
->type
[0] ? cfg
->type
2085 shash_destroy(&new_ifaces
);
2089 port_destroy(struct port
*port
)
2092 struct bridge
*br
= port
->bridge
;
2093 struct iface
*iface
, *next
;
2096 ofproto_bundle_unregister(br
->ofproto
, port
);
2099 LIST_FOR_EACH_SAFE (iface
, next
, port_elem
, &port
->ifaces
) {
2100 iface_destroy(iface
);
2103 hmap_remove(&br
->ports
, &port
->hmap_node
);
2105 VLOG_INFO("destroyed port %s on bridge %s", port
->name
, br
->name
);
2112 static struct port
*
2113 port_lookup(const struct bridge
*br
, const char *name
)
2117 HMAP_FOR_EACH_WITH_HASH (port
, hmap_node
, hash_string(name
, 0),
2119 if (!strcmp(port
->name
, name
)) {
2127 enable_lacp(struct port
*port
, bool *activep
)
2129 if (!port
->cfg
->lacp
) {
2130 /* XXX when LACP implementation has been sufficiently tested, enable by
2131 * default and make active on bonded ports. */
2133 } else if (!strcmp(port
->cfg
->lacp
, "off")) {
2135 } else if (!strcmp(port
->cfg
->lacp
, "active")) {
2138 } else if (!strcmp(port
->cfg
->lacp
, "passive")) {
2142 VLOG_WARN("port %s: unknown LACP mode %s",
2143 port
->name
, port
->cfg
->lacp
);
2148 static struct lacp_settings
*
2149 port_configure_lacp(struct port
*port
, struct lacp_settings
*s
)
2151 const char *lacp_time
;
2152 long long int custom_time
;
2155 if (!enable_lacp(port
, &s
->active
)) {
2159 s
->name
= port
->name
;
2160 memcpy(s
->id
, port
->bridge
->ea
, ETH_ADDR_LEN
);
2162 /* Prefer bondable links if unspecified. */
2163 priority
= atoi(get_port_other_config(port
->cfg
, "lacp-system-priority",
2165 s
->priority
= (priority
> 0 && priority
<= UINT16_MAX
2167 : UINT16_MAX
- !list_is_short(&port
->ifaces
));
2169 s
->heartbeat
= !strcmp(get_port_other_config(port
->cfg
,
2174 lacp_time
= get_port_other_config(port
->cfg
, "lacp-time", "slow");
2175 custom_time
= atoi(lacp_time
);
2176 if (!strcmp(lacp_time
, "fast")) {
2177 s
->lacp_time
= LACP_TIME_FAST
;
2178 } else if (!strcmp(lacp_time
, "slow")) {
2179 s
->lacp_time
= LACP_TIME_SLOW
;
2180 } else if (custom_time
> 0) {
2181 s
->lacp_time
= LACP_TIME_CUSTOM
;
2182 s
->custom_time
= custom_time
;
2184 s
->lacp_time
= LACP_TIME_SLOW
;
2191 iface_configure_lacp(struct iface
*iface
, struct lacp_slave_settings
*s
)
2193 int priority
, portid
, key
;
2195 portid
= atoi(get_interface_other_config(iface
->cfg
, "lacp-port-id", "0"));
2196 priority
= atoi(get_interface_other_config(iface
->cfg
,
2197 "lacp-port-priority", "0"));
2198 key
= atoi(get_interface_other_config(iface
->cfg
, "lacp-aggregation-key",
2201 if (portid
<= 0 || portid
> UINT16_MAX
) {
2202 portid
= iface
->ofp_port
;
2205 if (priority
<= 0 || priority
> UINT16_MAX
) {
2206 priority
= UINT16_MAX
;
2209 if (key
< 0 || key
> UINT16_MAX
) {
2213 s
->name
= iface
->name
;
2215 s
->priority
= priority
;
2220 port_configure_bond(struct port
*port
, struct bond_settings
*s
,
2221 uint32_t *bond_stable_ids
)
2223 const char *detect_s
;
2224 struct iface
*iface
;
2227 s
->name
= port
->name
;
2228 s
->balance
= BM_SLB
;
2229 if (port
->cfg
->bond_mode
2230 && !bond_mode_from_string(&s
->balance
, port
->cfg
->bond_mode
)) {
2231 VLOG_WARN("port %s: unknown bond_mode %s, defaulting to %s",
2232 port
->name
, port
->cfg
->bond_mode
,
2233 bond_mode_to_string(s
->balance
));
2236 s
->detect
= BLSM_CARRIER
;
2237 detect_s
= get_port_other_config(port
->cfg
, "bond-detect-mode", NULL
);
2238 if (detect_s
&& !bond_detect_mode_from_string(&s
->detect
, detect_s
)) {
2239 VLOG_WARN("port %s: unsupported bond-detect-mode %s, "
2241 port
->name
, detect_s
, bond_detect_mode_to_string(s
->detect
));
2244 s
->miimon_interval
= atoi(
2245 get_port_other_config(port
->cfg
, "bond-miimon-interval", "200"));
2246 if (s
->miimon_interval
< 100) {
2247 s
->miimon_interval
= 100;
2250 s
->up_delay
= MAX(0, port
->cfg
->bond_updelay
);
2251 s
->down_delay
= MAX(0, port
->cfg
->bond_downdelay
);
2252 s
->basis
= atoi(get_port_other_config(port
->cfg
, "bond-hash-basis", "0"));
2253 s
->rebalance_interval
= atoi(
2254 get_port_other_config(port
->cfg
, "bond-rebalance-interval", "10000"));
2255 if (s
->rebalance_interval
< 1000) {
2256 s
->rebalance_interval
= 1000;
2259 s
->fake_iface
= port
->cfg
->bond_fake_iface
;
2262 LIST_FOR_EACH (iface
, port_elem
, &port
->ifaces
) {
2263 long long stable_id
;
2265 stable_id
= atoll(get_interface_other_config(iface
->cfg
,
2266 "bond-stable-id", "0"));
2267 if (stable_id
<= 0 || stable_id
>= UINT32_MAX
) {
2268 stable_id
= iface
->ofp_port
;
2270 bond_stable_ids
[i
++] = stable_id
;
2274 /* Interface functions. */
2276 static struct iface
*
2277 iface_create(struct port
*port
, const struct ovsrec_interface
*if_cfg
)
2279 struct bridge
*br
= port
->bridge
;
2280 struct iface
*iface
;
2281 char *name
= if_cfg
->name
;
2283 iface
= xzalloc(sizeof *iface
);
2285 iface
->name
= xstrdup(name
);
2286 iface
->ofp_port
= -1;
2287 iface
->tag
= tag_create_random();
2288 iface
->netdev
= NULL
;
2289 iface
->cfg
= if_cfg
;
2291 hmap_insert(&br
->iface_by_name
, &iface
->name_node
, hash_string(name
, 0));
2293 list_push_back(&port
->ifaces
, &iface
->port_elem
);
2295 VLOG_DBG("attached network device %s to port %s", iface
->name
, port
->name
);
2301 iface_destroy(struct iface
*iface
)
2304 struct port
*port
= iface
->port
;
2305 struct bridge
*br
= port
->bridge
;
2307 if (br
->ofproto
&& iface
->ofp_port
>= 0) {
2308 ofproto_port_unregister(br
->ofproto
, iface
->ofp_port
);
2311 if (iface
->ofp_port
>= 0) {
2312 hmap_remove(&br
->ifaces
, &iface
->ofp_port_node
);
2315 list_remove(&iface
->port_elem
);
2316 hmap_remove(&br
->iface_by_name
, &iface
->name_node
);
2318 netdev_close(iface
->netdev
);
2325 static struct iface
*
2326 iface_lookup(const struct bridge
*br
, const char *name
)
2328 struct iface
*iface
;
2330 HMAP_FOR_EACH_WITH_HASH (iface
, name_node
, hash_string(name
, 0),
2331 &br
->iface_by_name
) {
2332 if (!strcmp(iface
->name
, name
)) {
2340 static struct iface
*
2341 iface_find(const char *name
)
2343 const struct bridge
*br
;
2345 HMAP_FOR_EACH (br
, node
, &all_bridges
) {
2346 struct iface
*iface
= iface_lookup(br
, name
);
2355 static struct iface
*
2356 iface_from_ofp_port(const struct bridge
*br
, uint16_t ofp_port
)
2358 struct iface
*iface
;
2360 HMAP_FOR_EACH_IN_BUCKET (iface
, ofp_port_node
,
2361 hash_int(ofp_port
, 0), &br
->ifaces
) {
2362 if (iface
->ofp_port
== ofp_port
) {
2369 /* Set Ethernet address of 'iface', if one is specified in the configuration
2372 iface_set_mac(struct iface
*iface
)
2374 uint8_t ea
[ETH_ADDR_LEN
];
2376 if (!strcmp(iface
->type
, "internal")
2377 && iface
->cfg
->mac
&& eth_addr_from_string(iface
->cfg
->mac
, ea
)) {
2378 if (iface
->ofp_port
== OFPP_LOCAL
) {
2379 VLOG_ERR("interface %s: ignoring mac in Interface record "
2380 "(use Bridge record to set local port's mac)",
2382 } else if (eth_addr_is_multicast(ea
)) {
2383 VLOG_ERR("interface %s: cannot set MAC to multicast address",
2386 int error
= netdev_set_etheraddr(iface
->netdev
, ea
);
2388 VLOG_ERR("interface %s: setting MAC failed (%s)",
2389 iface
->name
, strerror(error
));
2395 /* Sets the ofport column of 'if_cfg' to 'ofport'. */
2397 iface_set_ofport(const struct ovsrec_interface
*if_cfg
, int64_t ofport
)
2399 if (if_cfg
&& !ovsdb_idl_row_is_synthetic(&if_cfg
->header_
)) {
2400 ovsrec_interface_set_ofport(if_cfg
, &ofport
, 1);
2404 /* Adds the 'n' key-value pairs in 'keys' in 'values' to 'shash'.
2406 * The value strings in '*shash' are taken directly from values[], not copied,
2407 * so the caller should not modify or free them. */
2409 shash_from_ovs_idl_map(char **keys
, char **values
, size_t n
,
2410 struct shash
*shash
)
2415 for (i
= 0; i
< n
; i
++) {
2416 shash_add(shash
, keys
[i
], values
[i
]);
2420 /* Creates 'keys' and 'values' arrays from 'shash'.
2422 * Sets 'keys' and 'values' to heap allocated arrays representing the key-value
2423 * pairs in 'shash'. The caller takes ownership of 'keys' and 'values'. They
2424 * are populated with with strings taken directly from 'shash' and thus have
2425 * the same ownership of the key-value pairs in shash.
2428 shash_to_ovs_idl_map(struct shash
*shash
,
2429 char ***keys
, char ***values
, size_t *n
)
2433 struct shash_node
*sn
;
2435 count
= shash_count(shash
);
2437 k
= xmalloc(count
* sizeof *k
);
2438 v
= xmalloc(count
* sizeof *v
);
2441 SHASH_FOR_EACH(sn
, shash
) {
2452 struct iface_delete_queues_cbdata
{
2453 struct netdev
*netdev
;
2454 const struct ovsdb_datum
*queues
;
2458 queue_ids_include(const struct ovsdb_datum
*queues
, int64_t target
)
2460 union ovsdb_atom atom
;
2462 atom
.integer
= target
;
2463 return ovsdb_datum_find_key(queues
, &atom
, OVSDB_TYPE_INTEGER
) != UINT_MAX
;
2467 iface_delete_queues(unsigned int queue_id
,
2468 const struct shash
*details OVS_UNUSED
, void *cbdata_
)
2470 struct iface_delete_queues_cbdata
*cbdata
= cbdata_
;
2472 if (!queue_ids_include(cbdata
->queues
, queue_id
)) {
2473 netdev_delete_queue(cbdata
->netdev
, queue_id
);
2478 iface_configure_qos(struct iface
*iface
, const struct ovsrec_qos
*qos
)
2480 if (!qos
|| qos
->type
[0] == '\0' || qos
->n_queues
< 1) {
2481 netdev_set_qos(iface
->netdev
, NULL
, NULL
);
2483 struct iface_delete_queues_cbdata cbdata
;
2484 struct shash details
;
2487 /* Configure top-level Qos for 'iface'. */
2488 shash_from_ovs_idl_map(qos
->key_other_config
, qos
->value_other_config
,
2489 qos
->n_other_config
, &details
);
2490 netdev_set_qos(iface
->netdev
, qos
->type
, &details
);
2491 shash_destroy(&details
);
2493 /* Deconfigure queues that were deleted. */
2494 cbdata
.netdev
= iface
->netdev
;
2495 cbdata
.queues
= ovsrec_qos_get_queues(qos
, OVSDB_TYPE_INTEGER
,
2497 netdev_dump_queues(iface
->netdev
, iface_delete_queues
, &cbdata
);
2499 /* Configure queues for 'iface'. */
2500 for (i
= 0; i
< qos
->n_queues
; i
++) {
2501 const struct ovsrec_queue
*queue
= qos
->value_queues
[i
];
2502 unsigned int queue_id
= qos
->key_queues
[i
];
2504 shash_from_ovs_idl_map(queue
->key_other_config
,
2505 queue
->value_other_config
,
2506 queue
->n_other_config
, &details
);
2507 netdev_set_queue(iface
->netdev
, queue_id
, &details
);
2508 shash_destroy(&details
);
2512 netdev_set_policing(iface
->netdev
,
2513 iface
->cfg
->ingress_policing_rate
,
2514 iface
->cfg
->ingress_policing_burst
);
2518 iface_configure_cfm(struct iface
*iface
)
2522 uint16_t *remote_mps
;
2523 struct ovsrec_monitor
*mon
;
2524 uint8_t maid
[CCM_MAID_LEN
];
2526 mon
= iface
->cfg
->monitor
;
2529 ofproto_port_clear_cfm(iface
->port
->bridge
->ofproto
, iface
->ofp_port
);
2533 if (!cfm_generate_maid(mon
->md_name
, mon
->ma_name
, maid
)) {
2534 VLOG_WARN("interface %s: Failed to generate MAID.", iface
->name
);
2538 cfm
.mpid
= mon
->mpid
;
2539 cfm
.interval
= mon
->interval
? *mon
->interval
: 1000;
2541 memcpy(cfm
.maid
, maid
, sizeof cfm
.maid
);
2543 remote_mps
= xzalloc(mon
->n_remote_mps
* sizeof *remote_mps
);
2544 for(i
= 0; i
< mon
->n_remote_mps
; i
++) {
2545 remote_mps
[i
] = mon
->remote_mps
[i
]->mpid
;
2548 ofproto_port_set_cfm(iface
->port
->bridge
->ofproto
, iface
->ofp_port
,
2549 &cfm
, remote_mps
, mon
->n_remote_mps
);
2553 /* Read carrier or miimon status directly from 'iface''s netdev, according to
2554 * how 'iface''s port is configured.
2556 * Returns true if 'iface' is up, false otherwise. */
2558 iface_get_carrier(const struct iface
*iface
)
2561 return netdev_get_carrier(iface
->netdev
);
2564 /* Returns true if 'iface' is synthetic, that is, if we constructed it locally
2565 * instead of obtaining it from the database. */
2567 iface_is_synthetic(const struct iface
*iface
)
2569 return ovsdb_idl_row_is_synthetic(&iface
->cfg
->header_
);
2572 /* Port mirroring. */
2574 static struct mirror
*
2575 mirror_find_by_uuid(struct bridge
*br
, const struct uuid
*uuid
)
2579 HMAP_FOR_EACH_IN_BUCKET (m
, hmap_node
, uuid_hash(uuid
), &br
->mirrors
) {
2580 if (uuid_equals(uuid
, &m
->uuid
)) {
2588 bridge_configure_mirrors(struct bridge
*br
)
2590 const struct ovsdb_datum
*mc
;
2591 unsigned long *flood_vlans
;
2592 struct mirror
*m
, *next
;
2595 /* Get rid of deleted mirrors. */
2596 mc
= ovsrec_bridge_get_mirrors(br
->cfg
, OVSDB_TYPE_UUID
);
2597 HMAP_FOR_EACH_SAFE (m
, next
, hmap_node
, &br
->mirrors
) {
2598 union ovsdb_atom atom
;
2600 atom
.uuid
= m
->uuid
;
2601 if (ovsdb_datum_find_key(mc
, &atom
, OVSDB_TYPE_UUID
) == UINT_MAX
) {
2606 /* Add new mirrors and reconfigure existing ones. */
2607 for (i
= 0; i
< br
->cfg
->n_mirrors
; i
++) {
2608 const struct ovsrec_mirror
*cfg
= br
->cfg
->mirrors
[i
];
2609 struct mirror
*m
= mirror_find_by_uuid(br
, &cfg
->header_
.uuid
);
2611 m
= mirror_create(br
, cfg
);
2613 if (!mirror_configure(m
, cfg
)) {
2618 /* Update flooded vlans (for RSPAN). */
2619 flood_vlans
= vlan_bitmap_from_array(br
->cfg
->flood_vlans
,
2620 br
->cfg
->n_flood_vlans
);
2621 ofproto_set_flood_vlans(br
->ofproto
, flood_vlans
);
2622 bitmap_free(flood_vlans
);
2625 static struct mirror
*
2626 mirror_create(struct bridge
*br
, const struct ovsrec_mirror
*cfg
)
2630 m
= xzalloc(sizeof *m
);
2631 m
->uuid
= cfg
->header_
.uuid
;
2632 hmap_insert(&br
->mirrors
, &m
->hmap_node
, uuid_hash(&m
->uuid
));
2634 m
->name
= xstrdup(cfg
->name
);
2640 mirror_destroy(struct mirror
*m
)
2643 struct bridge
*br
= m
->bridge
;
2646 ofproto_mirror_unregister(br
->ofproto
, m
);
2649 hmap_remove(&br
->mirrors
, &m
->hmap_node
);
2656 mirror_collect_ports(struct mirror
*m
,
2657 struct ovsrec_port
**in_ports
, int n_in_ports
,
2658 void ***out_portsp
, size_t *n_out_portsp
)
2660 void **out_ports
= xmalloc(n_in_ports
* sizeof *out_ports
);
2661 size_t n_out_ports
= 0;
2664 for (i
= 0; i
< n_in_ports
; i
++) {
2665 const char *name
= in_ports
[i
]->name
;
2666 struct port
*port
= port_lookup(m
->bridge
, name
);
2668 out_ports
[n_out_ports
++] = port
;
2670 VLOG_WARN("bridge %s: mirror %s cannot match on nonexistent "
2671 "port %s", m
->bridge
->name
, m
->name
, name
);
2674 *out_portsp
= out_ports
;
2675 *n_out_portsp
= n_out_ports
;
2679 mirror_configure(struct mirror
*m
, const struct ovsrec_mirror
*cfg
)
2681 struct ofproto_mirror_settings s
;
2684 if (strcmp(cfg
->name
, m
->name
)) {
2686 m
->name
= xstrdup(cfg
->name
);
2690 /* Get output port or VLAN. */
2691 if (cfg
->output_port
) {
2692 s
.out_bundle
= port_lookup(m
->bridge
, cfg
->output_port
->name
);
2693 if (!s
.out_bundle
) {
2694 VLOG_ERR("bridge %s: mirror %s outputs to port not on bridge",
2695 m
->bridge
->name
, m
->name
);
2698 s
.out_vlan
= UINT16_MAX
;
2700 if (cfg
->output_vlan
) {
2701 VLOG_ERR("bridge %s: mirror %s specifies both output port and "
2702 "output vlan; ignoring output vlan",
2703 m
->bridge
->name
, m
->name
);
2705 } else if (cfg
->output_vlan
) {
2706 /* The database should prevent invalid VLAN values. */
2707 s
.out_bundle
= NULL
;
2708 s
.out_vlan
= *cfg
->output_vlan
;
2710 VLOG_ERR("bridge %s: mirror %s does not specify output; ignoring",
2711 m
->bridge
->name
, m
->name
);
2715 /* Get port selection. */
2716 if (cfg
->select_all
) {
2717 size_t n_ports
= hmap_count(&m
->bridge
->ports
);
2718 void **ports
= xmalloc(n_ports
* sizeof *ports
);
2723 HMAP_FOR_EACH (port
, hmap_node
, &m
->bridge
->ports
) {
2733 /* Get ports, dropping ports that don't exist.
2734 * The IDL ensures that there are no duplicates. */
2735 mirror_collect_ports(m
, cfg
->select_src_port
, cfg
->n_select_src_port
,
2736 &s
.srcs
, &s
.n_srcs
);
2737 mirror_collect_ports(m
, cfg
->select_dst_port
, cfg
->n_select_dst_port
,
2738 &s
.dsts
, &s
.n_dsts
);
2742 /* Get VLAN selection. */
2743 s
.src_vlans
= vlan_bitmap_from_array(cfg
->select_vlan
, cfg
->n_select_vlan
);
2746 ofproto_mirror_register(m
->bridge
->ofproto
, m
, &s
);
2749 if (s
.srcs
!= s
.dsts
) {