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_clear_dns(iface
);
94 vlist_flush_all(&iface
->proto_addr
);
95 vlist_flush_all(&iface
->proto_route
);
96 if (iface
->main_dev
.dev
)
97 device_release(&iface
->main_dev
);
101 mark_interface_down(struct interface
*iface
)
103 interface_flush_state(iface
);
104 iface
->state
= IFS_DOWN
;
108 __interface_set_up(struct interface
*iface
)
112 if (iface
->state
!= IFS_DOWN
)
115 if (iface
->main_dev
.dev
) {
116 ret
= device_claim(&iface
->main_dev
);
121 iface
->state
= IFS_SETUP
;
122 ret
= interface_proto_event(iface
->proto
, PROTO_CMD_SETUP
, false);
124 mark_interface_down(iface
);
132 __interface_set_down(struct interface
*iface
, bool force
)
134 interface_clear_errors(iface
);
136 if (iface
->state
== IFS_DOWN
||
137 iface
->state
== IFS_TEARDOWN
)
140 iface
->state
= IFS_TEARDOWN
;
141 interface_event(iface
, IFEV_DOWN
);
142 interface_proto_event(iface
->proto
, PROTO_CMD_TEARDOWN
, force
);
144 interface_flush_state(iface
);
148 interface_cb(struct device_user
*dep
, enum device_event ev
)
150 struct interface
*iface
;
153 iface
= container_of(dep
, struct interface
, main_dev
);
158 case DEV_EVENT_REMOVE
:
165 interface_set_available(iface
, new_state
);
169 interface_set_available(struct interface
*iface
, bool new_state
)
171 if (iface
->available
== new_state
)
174 D(INTERFACE
, "Interface '%s', available=%d\n", iface
->name
, new_state
);
175 iface
->available
= new_state
;
178 if (iface
->autostart
&& !config_init
)
179 interface_set_up(iface
);
181 __interface_set_down(iface
, true);
185 interface_add_user(struct interface_user
*dep
, struct interface
*iface
)
188 list_add(&dep
->list
, &iface
->users
);
189 if (iface
->state
== IFS_UP
)
190 dep
->cb(dep
, IFEV_UP
);
194 interface_remove_user(struct interface_user
*dep
)
196 list_del_init(&dep
->list
);
201 interface_claim_device(struct interface
*iface
)
205 if (iface
->ifname
&& iface
->proto_handler
&&
206 !(iface
->proto_handler
->flags
& PROTO_FLAG_NODEV
)) {
207 dev
= device_get(iface
->ifname
, true);
209 device_add_user(&iface
->main_dev
, dev
);
215 interface_cleanup(struct interface
*iface
)
217 struct interface_user
*dep
, *tmp
;
219 list_for_each_entry_safe(dep
, tmp
, &iface
->users
, list
)
220 interface_remove_user(dep
);
222 interface_clear_dns(iface
);
223 interface_clear_errors(iface
);
224 if (iface
->main_dev
.dev
)
225 device_remove_user(&iface
->main_dev
);
226 iface
->l3_dev
= &iface
->main_dev
;
227 interface_set_proto_state(iface
, NULL
);
231 interface_do_free(struct interface
*iface
)
233 interface_cleanup(iface
);
235 netifd_ubus_remove_interface(iface
);
236 avl_delete(&interfaces
.avl
, &iface
->node
.avl
);
241 interface_do_reload(struct interface
*iface
)
243 interface_cleanup(iface
);
245 interface_claim_device(iface
);
246 proto_init_interface(iface
, iface
->config
);
248 if (iface
->autostart
&& !config_init
)
249 interface_set_up(iface
);
253 interface_handle_config_change(struct interface
*iface
)
255 switch(iface
->config_state
) {
259 interface_do_reload(iface
);
262 interface_do_free(iface
);
268 interface_proto_cb(struct interface_proto_state
*state
, enum interface_proto_event ev
)
270 struct interface
*iface
= state
->iface
;
274 if (iface
->state
!= IFS_SETUP
)
277 system_flush_routes();
278 iface
->state
= IFS_UP
;
279 iface
->start_time
= system_get_rtime();
280 interface_event(iface
, IFEV_UP
);
281 interface_write_resolv_conf();
282 netifd_log_message(L_NOTICE
, "Interface '%s' is now up\n", iface
->name
);
285 if (iface
->state
== IFS_DOWN
)
288 netifd_log_message(L_NOTICE
, "Interface '%s' is now down\n", iface
->name
);
289 system_flush_routes();
290 mark_interface_down(iface
);
291 interface_handle_config_change(iface
);
292 if (iface
->l3_dev
->dev
)
293 device_release(iface
->l3_dev
);
294 if (iface
->autostart
&& iface
->available
)
295 __interface_set_up(iface
);
297 case IFPEV_LINK_LOST
:
298 if (iface
->state
!= IFS_UP
)
301 netifd_log_message(L_NOTICE
, "Interface '%s' has lost the connection\n", iface
->name
);
302 iface
->state
= IFS_SETUP
;
303 interface_event(iface
, IFEV_DOWN
);
308 void interface_set_proto_state(struct interface
*iface
, struct interface_proto_state
*state
)
311 iface
->proto
->free(iface
->proto
);
314 iface
->state
= IFS_DOWN
;
315 iface
->proto
= state
;
319 state
->proto_event
= interface_proto_cb
;
320 state
->iface
= iface
;
324 interface_init(struct interface
*iface
, const char *name
,
325 struct blob_attr
*config
)
327 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
328 struct blob_attr
*cur
;
329 const char *proto_name
= NULL
;
331 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
332 INIT_LIST_HEAD(&iface
->errors
);
333 INIT_LIST_HEAD(&iface
->users
);
334 INIT_LIST_HEAD(&iface
->hotplug_list
);
335 INIT_LIST_HEAD(&iface
->proto_dns_search
);
336 INIT_LIST_HEAD(&iface
->proto_dns_servers
);
338 iface
->main_dev
.cb
= interface_cb
;
339 iface
->l3_dev
= &iface
->main_dev
;
341 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
342 blob_data(config
), blob_len(config
));
344 if ((cur
= tb
[IFACE_ATTR_PROTO
]))
345 proto_name
= blobmsg_data(cur
);
347 proto_attach_interface(iface
, proto_name
);
349 if ((cur
= tb
[IFACE_ATTR_AUTO
]))
350 iface
->autostart
= blobmsg_get_bool(cur
);
352 iface
->autostart
= true;
353 iface
->config_autostart
= iface
->autostart
;
357 interface_add(struct interface
*iface
, struct blob_attr
*config
)
359 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
360 struct blob_attr
*cur
;
362 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
363 blob_data(config
), blob_len(config
));
365 if ((cur
= tb
[IFACE_ATTR_IFNAME
]))
366 iface
->ifname
= blobmsg_data(cur
);
368 iface
->config
= config
;
369 vlist_add(&interfaces
, &iface
->node
);
373 interface_remove_link(struct interface
*iface
, struct device
*dev
)
375 struct device
*mdev
= iface
->main_dev
.dev
;
377 if (mdev
&& mdev
->hotplug_ops
) {
378 mdev
->hotplug_ops
->del(mdev
, dev
);
382 device_remove_user(&iface
->main_dev
);
386 interface_add_link(struct interface
*iface
, struct device
*dev
)
388 struct device
*mdev
= iface
->main_dev
.dev
;
390 if (mdev
&& mdev
->hotplug_ops
)
391 return mdev
->hotplug_ops
->add(mdev
, dev
);
393 if (iface
->main_dev
.dev
)
394 interface_remove_link(iface
, NULL
);
396 device_add_user(&iface
->main_dev
, dev
);
402 interface_set_up(struct interface
*iface
)
404 iface
->autostart
= true;
406 if (iface
->state
!= IFS_DOWN
)
409 interface_clear_errors(iface
);
410 if (!iface
->available
) {
411 interface_add_error(iface
, "interface", "NO_DEVICE", NULL
, 0);
415 return __interface_set_up(iface
);
419 interface_set_down(struct interface
*iface
)
422 vlist_for_each_element(&interfaces
, iface
, node
)
423 __interface_set_down(iface
, false);
425 iface
->autostart
= false;
426 __interface_set_down(iface
, false);
433 interface_start_pending(void)
435 struct interface
*iface
;
437 vlist_for_each_element(&interfaces
, iface
, node
) {
438 if (iface
->available
&& iface
->autostart
)
439 interface_set_up(iface
);
444 set_config_state(struct interface
*iface
, enum interface_config_state s
)
446 iface
->config_state
= s
;
447 if (iface
->state
== IFS_DOWN
)
448 interface_handle_config_change(iface
);
450 __interface_set_down(iface
, false);
454 interface_change_config(struct interface
*if_old
, struct interface
*if_new
)
456 struct blob_attr
*old_config
= if_old
->config
;
457 const char *old_ifname
= if_old
->ifname
;
458 const struct proto_handler
*proto
= if_old
->proto_handler
;
460 interface_clear_errors(if_old
);
461 if_old
->config
= if_new
->config
;
462 if (!if_old
->config_autostart
&& if_new
->config_autostart
)
463 if_old
->autostart
= true;
465 if_old
->config_autostart
= if_new
->config_autostart
;
466 if_old
->ifname
= if_new
->ifname
;
467 if_old
->proto_handler
= if_new
->proto_handler
;
469 if (strcmp(old_ifname
, if_new
->ifname
) != 0 ||
470 proto
!= if_new
->proto_handler
) {
471 D(INTERFACE
, "Reload interface '%s' because of ifname/proto change\n",
476 if (!proto
->config_params
)
477 D(INTERFACE
, "No config parameters for interface '%s'\n",
479 else if (!config_check_equal(old_config
, if_new
->config
,
480 proto
->config_params
)) {
481 D(INTERFACE
, "Reload interface '%s because of config changes\n",
489 set_config_state(if_old
, IFC_RELOAD
);
496 interface_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
497 struct vlist_node
*node_old
)
499 struct interface
*if_old
= container_of(node_old
, struct interface
, node
);
500 struct interface
*if_new
= container_of(node_new
, struct interface
, node
);
502 if (node_old
&& node_new
) {
503 D(INTERFACE
, "Update interface '%s'\n", if_new
->name
);
504 interface_change_config(if_old
, if_new
);
505 } else if (node_old
) {
506 D(INTERFACE
, "Remove interface '%s'\n", if_old
->name
);
507 set_config_state(if_old
, IFC_REMOVE
);
508 } else if (node_new
) {
509 D(INTERFACE
, "Create interface '%s'\n", if_new
->name
);
510 interface_claim_device(if_new
);
511 proto_init_interface(if_new
, if_new
->config
);
512 interface_ip_init(if_new
);
513 netifd_ubus_add_interface(if_new
);
519 interface_init_list(void)
521 vlist_init(&interfaces
, avl_strcmp
, interface_update
,
522 struct interface
, node
, name
);
523 interfaces
.keep_old
= true;
524 interfaces
.no_delete
= true;