8 #include "interface-ip.h"
14 struct vlist_tree interfaces
;
23 static const struct blobmsg_policy iface_attrs
[IFACE_ATTR_MAX
] = {
24 [IFACE_ATTR_PROTO
] = { .name
= "proto", .type
= BLOBMSG_TYPE_STRING
},
25 [IFACE_ATTR_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
26 [IFACE_ATTR_AUTO
] = { .name
= "auto", .type
= BLOBMSG_TYPE_BOOL
},
29 const struct config_param_list interface_attr_list
= {
30 .n_params
= IFACE_ATTR_MAX
,
31 .params
= iface_attrs
,
35 interface_clear_errors(struct interface
*iface
)
37 struct interface_error
*error
, *tmp
;
39 list_for_each_entry_safe(error
, tmp
, &iface
->errors
, list
) {
40 list_del(&error
->list
);
45 void interface_add_error(struct interface
*iface
, const char *subsystem
,
46 const char *code
, const char **data
, int n_data
)
48 struct interface_error
*error
;
54 len
= n_data
* sizeof(char *);
55 datalen
= alloca(len
);
56 for (i
= 0; i
< n_data
; i
++) {
57 datalen
[i
] = strlen(data
[i
]) + 1;
62 error
= calloc(1, sizeof(*error
) + sizeof(char *) + len
);
66 list_add_tail(&error
->list
, &iface
->errors
);
67 error
->subsystem
= subsystem
;
70 dest
= (char *) &error
->data
[n_data
+ 1];
71 for (i
= 0; i
< n_data
; i
++) {
72 error
->data
[i
] = dest
;
73 memcpy(dest
, data
[i
], datalen
[i
]);
76 error
->data
[n_data
] = NULL
;
80 interface_event(struct interface
*iface
, enum interface_event ev
)
82 struct interface_user
*dep
, *tmp
;
84 list_for_each_entry_safe(dep
, tmp
, &iface
->users
, list
)
85 dep
->cb(dep
, IFEV_UP
);
87 interface_queue_event(iface
, ev
);
91 interface_flush_state(struct interface
*iface
)
93 interface_ip_flush(&iface
->proto_ip
);
94 if (iface
->main_dev
.dev
)
95 device_release(&iface
->main_dev
);
96 if (iface
->l3_dev
!= &iface
->main_dev
&& iface
->l3_dev
->dev
)
97 device_release(iface
->l3_dev
);
101 mark_interface_down(struct interface
*iface
)
103 if (iface
->state
== IFS_UP
)
104 interface_event(iface
, IFEV_DOWN
);
105 interface_flush_state(iface
);
106 iface
->state
= IFS_DOWN
;
110 __interface_set_down(struct interface
*iface
, bool force
)
112 interface_clear_errors(iface
);
114 if (iface
->state
== IFS_DOWN
||
115 iface
->state
== IFS_TEARDOWN
)
118 if (iface
->state
== IFS_UP
)
119 interface_event(iface
, IFEV_DOWN
);
120 iface
->state
= IFS_TEARDOWN
;
121 interface_proto_event(iface
->proto
, PROTO_CMD_TEARDOWN
, force
);
123 interface_flush_state(iface
);
127 interface_cb(struct device_user
*dep
, enum device_event ev
)
129 struct interface
*iface
;
132 iface
= container_of(dep
, struct interface
, main_dev
);
137 case DEV_EVENT_REMOVE
:
144 interface_set_available(iface
, new_state
);
148 interface_set_available(struct interface
*iface
, bool new_state
)
150 if (iface
->available
== new_state
)
153 D(INTERFACE
, "Interface '%s', available=%d\n", iface
->name
, new_state
);
154 iface
->available
= new_state
;
157 if (iface
->autostart
&& !config_init
)
158 interface_set_up(iface
);
160 __interface_set_down(iface
, true);
164 interface_add_user(struct interface_user
*dep
, struct interface
*iface
)
167 list_add(&dep
->list
, &iface
->users
);
168 if (iface
->state
== IFS_UP
)
169 dep
->cb(dep
, IFEV_UP
);
173 interface_remove_user(struct interface_user
*dep
)
175 list_del_init(&dep
->list
);
180 interface_claim_device(struct interface
*iface
)
184 if (iface
->ifname
&& iface
->proto_handler
&&
185 !(iface
->proto_handler
->flags
& PROTO_FLAG_NODEV
)) {
186 dev
= device_get(iface
->ifname
, true);
188 device_add_user(&iface
->main_dev
, dev
);
190 if (iface
->proto_handler
->flags
& PROTO_FLAG_INIT_AVAILABLE
)
191 interface_set_available(iface
, true);
196 interface_cleanup(struct interface
*iface
)
198 struct interface_user
*dep
, *tmp
;
200 list_for_each_entry_safe(dep
, tmp
, &iface
->users
, list
)
201 interface_remove_user(dep
);
203 interface_ip_flush(&iface
->config_ip
);
204 interface_flush_state(iface
);
205 interface_clear_errors(iface
);
206 if (iface
->main_dev
.dev
)
207 device_remove_user(&iface
->main_dev
);
208 iface
->l3_dev
= &iface
->main_dev
;
209 interface_set_proto_state(iface
, NULL
);
213 interface_do_free(struct interface
*iface
)
215 interface_cleanup(iface
);
217 netifd_ubus_remove_interface(iface
);
218 avl_delete(&interfaces
.avl
, &iface
->node
.avl
);
223 interface_do_reload(struct interface
*iface
)
225 interface_cleanup(iface
);
226 proto_init_interface(iface
, iface
->config
);
227 interface_claim_device(iface
);
231 interface_handle_config_change(struct interface
*iface
)
233 switch(iface
->config_state
) {
237 interface_do_reload(iface
);
240 interface_do_free(iface
);
243 if (iface
->autostart
&& iface
->available
)
244 interface_set_up(iface
);
248 interface_proto_cb(struct interface_proto_state
*state
, enum interface_proto_event ev
)
250 struct interface
*iface
= state
->iface
;
254 if (iface
->state
!= IFS_SETUP
)
257 interface_ip_set_enabled(&iface
->config_ip
, true);
258 system_flush_routes();
259 iface
->state
= IFS_UP
;
260 iface
->start_time
= system_get_rtime();
261 interface_event(iface
, IFEV_UP
);
262 interface_write_resolv_conf();
263 netifd_log_message(L_NOTICE
, "Interface '%s' is now up\n", iface
->name
);
266 if (iface
->state
== IFS_DOWN
)
269 netifd_log_message(L_NOTICE
, "Interface '%s' is now down\n", iface
->name
);
270 interface_ip_set_enabled(&iface
->config_ip
, false);
271 system_flush_routes();
272 mark_interface_down(iface
);
273 interface_handle_config_change(iface
);
275 case IFPEV_LINK_LOST
:
276 if (iface
->state
!= IFS_UP
)
279 netifd_log_message(L_NOTICE
, "Interface '%s' has lost the connection\n", iface
->name
);
280 if (iface
->state
== IFS_UP
)
281 interface_event(iface
, IFEV_DOWN
);
282 iface
->state
= IFS_SETUP
;
287 void interface_set_proto_state(struct interface
*iface
, struct interface_proto_state
*state
)
290 iface
->proto
->free(iface
->proto
);
293 iface
->state
= IFS_DOWN
;
294 iface
->proto
= state
;
298 state
->proto_event
= interface_proto_cb
;
299 state
->iface
= iface
;
303 interface_init(struct interface
*iface
, const char *name
,
304 struct blob_attr
*config
)
306 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
307 struct blob_attr
*cur
;
308 const char *proto_name
= NULL
;
310 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
311 INIT_LIST_HEAD(&iface
->errors
);
312 INIT_LIST_HEAD(&iface
->users
);
313 INIT_LIST_HEAD(&iface
->hotplug_list
);
314 interface_ip_init(&iface
->proto_ip
, iface
);
315 interface_ip_init(&iface
->config_ip
, iface
);
316 iface
->config_ip
.enabled
= false;
318 iface
->main_dev
.cb
= interface_cb
;
319 iface
->l3_dev
= &iface
->main_dev
;
321 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
322 blob_data(config
), blob_len(config
));
324 if ((cur
= tb
[IFACE_ATTR_PROTO
]))
325 proto_name
= blobmsg_data(cur
);
327 proto_attach_interface(iface
, proto_name
);
329 if ((cur
= tb
[IFACE_ATTR_AUTO
]))
330 iface
->autostart
= blobmsg_get_bool(cur
);
332 iface
->autostart
= true;
333 iface
->config_autostart
= iface
->autostart
;
337 interface_add(struct interface
*iface
, struct blob_attr
*config
)
339 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
340 struct blob_attr
*cur
;
342 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
343 blob_data(config
), blob_len(config
));
345 if ((cur
= tb
[IFACE_ATTR_IFNAME
]))
346 iface
->ifname
= blobmsg_data(cur
);
348 iface
->config
= config
;
349 vlist_add(&interfaces
, &iface
->node
);
353 interface_remove_link(struct interface
*iface
, struct device
*dev
)
355 struct device
*mdev
= iface
->main_dev
.dev
;
357 if (mdev
&& mdev
->hotplug_ops
) {
358 mdev
->hotplug_ops
->del(mdev
, dev
);
362 device_remove_user(&iface
->main_dev
);
366 interface_add_link(struct interface
*iface
, struct device
*dev
)
368 struct device
*mdev
= iface
->main_dev
.dev
;
370 if (mdev
&& mdev
->hotplug_ops
)
371 return mdev
->hotplug_ops
->add(mdev
, dev
);
373 if (iface
->main_dev
.dev
)
374 interface_remove_link(iface
, NULL
);
376 device_add_user(&iface
->main_dev
, dev
);
382 interface_set_up(struct interface
*iface
)
386 iface
->autostart
= true;
388 if (iface
->state
!= IFS_DOWN
)
391 interface_clear_errors(iface
);
392 if (!iface
->available
) {
393 interface_add_error(iface
, "interface", "NO_DEVICE", NULL
, 0);
397 if (iface
->main_dev
.dev
) {
398 ret
= device_claim(&iface
->main_dev
);
403 iface
->state
= IFS_SETUP
;
404 ret
= interface_proto_event(iface
->proto
, PROTO_CMD_SETUP
, false);
406 mark_interface_down(iface
);
414 interface_set_down(struct interface
*iface
)
417 vlist_for_each_element(&interfaces
, iface
, node
)
418 __interface_set_down(iface
, false);
420 iface
->autostart
= false;
421 __interface_set_down(iface
, false);
428 interface_start_pending(void)
430 struct interface
*iface
;
432 vlist_for_each_element(&interfaces
, iface
, node
) {
433 if (iface
->available
&& iface
->autostart
)
434 interface_set_up(iface
);
439 set_config_state(struct interface
*iface
, enum interface_config_state s
)
441 iface
->config_state
= s
;
442 if (iface
->state
== IFS_DOWN
)
443 interface_handle_config_change(iface
);
445 __interface_set_down(iface
, false);
449 interface_update_start(struct interface
*iface
)
451 interface_ip_update_start(&iface
->proto_ip
);
455 interface_update_complete(struct interface
*iface
)
457 struct device_route
*route
;
459 interface_ip_update_complete(&iface
->proto_ip
);
460 vlist_for_each_element(&iface
->config_ip
.route
, route
, node
) {
461 if (iface
->l3_dev
->dev
) {
462 system_add_route(iface
->l3_dev
->dev
, route
);
463 route
->enabled
= true;
469 interface_change_config(struct interface
*if_old
, struct interface
*if_new
)
471 struct blob_attr
*old_config
= if_old
->config
;
472 const char *old_ifname
= if_old
->ifname
;
473 const struct proto_handler
*proto
= if_old
->proto_handler
;
475 interface_clear_errors(if_old
);
476 if_old
->config
= if_new
->config
;
477 if (!if_old
->config_autostart
&& if_new
->config_autostart
)
478 if_old
->autostart
= true;
480 if_old
->config_autostart
= if_new
->config_autostart
;
481 if_old
->ifname
= if_new
->ifname
;
482 if_old
->proto_handler
= if_new
->proto_handler
;
484 if ((!!old_ifname
!= !!if_new
->ifname
) ||
485 (old_ifname
&& strcmp(old_ifname
, if_new
->ifname
) != 0) ||
486 proto
!= if_new
->proto_handler
) {
487 D(INTERFACE
, "Reload interface '%s' because of ifname/proto change\n",
492 if (!proto
->config_params
)
493 D(INTERFACE
, "No config parameters for interface '%s'\n",
495 else if (!config_check_equal(old_config
, if_new
->config
,
496 proto
->config_params
)) {
497 D(INTERFACE
, "Reload interface '%s because of config changes\n",
505 set_config_state(if_old
, IFC_RELOAD
);
512 interface_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
513 struct vlist_node
*node_old
)
515 struct interface
*if_old
= container_of(node_old
, struct interface
, node
);
516 struct interface
*if_new
= container_of(node_new
, struct interface
, node
);
518 if (node_old
&& node_new
) {
519 D(INTERFACE
, "Update interface '%s'\n", if_new
->name
);
520 interface_change_config(if_old
, if_new
);
521 } else if (node_old
) {
522 D(INTERFACE
, "Remove interface '%s'\n", if_old
->name
);
523 set_config_state(if_old
, IFC_REMOVE
);
524 } else if (node_new
) {
525 D(INTERFACE
, "Create interface '%s'\n", if_new
->name
);
526 proto_init_interface(if_new
, if_new
->config
);
527 interface_claim_device(if_new
);
528 netifd_ubus_add_interface(if_new
);
534 interface_init_list(void)
536 vlist_init(&interfaces
, avl_strcmp
, interface_update
,
537 struct interface
, node
, name
);
538 interfaces
.keep_old
= true;
539 interfaces
.no_delete
= true;