8 #include "interface-ip.h"
14 struct vlist_tree interfaces
;
20 IFACE_ATTR_DEFAULTROUTE
,
24 static const struct blobmsg_policy iface_attrs
[IFACE_ATTR_MAX
] = {
25 [IFACE_ATTR_PROTO
] = { .name
= "proto", .type
= BLOBMSG_TYPE_STRING
},
26 [IFACE_ATTR_IFNAME
] = { .name
= "ifname", .type
= BLOBMSG_TYPE_STRING
},
27 [IFACE_ATTR_AUTO
] = { .name
= "auto", .type
= BLOBMSG_TYPE_BOOL
},
28 [IFACE_ATTR_DEFAULTROUTE
] = { .name
= "defaultroute", .type
= BLOBMSG_TYPE_BOOL
},
31 const struct config_param_list interface_attr_list
= {
32 .n_params
= IFACE_ATTR_MAX
,
33 .params
= iface_attrs
,
37 interface_clear_errors(struct interface
*iface
)
39 struct interface_error
*error
, *tmp
;
41 list_for_each_entry_safe(error
, tmp
, &iface
->errors
, list
) {
42 list_del(&error
->list
);
47 void interface_add_error(struct interface
*iface
, const char *subsystem
,
48 const char *code
, const char **data
, int n_data
)
50 struct interface_error
*error
;
56 len
= n_data
* sizeof(char *);
57 datalen
= alloca(len
);
58 for (i
= 0; i
< n_data
; i
++) {
59 datalen
[i
] = strlen(data
[i
]) + 1;
64 error
= calloc(1, sizeof(*error
) + sizeof(char *) + len
);
68 list_add_tail(&error
->list
, &iface
->errors
);
69 error
->subsystem
= subsystem
;
72 dest
= (char *) &error
->data
[n_data
+ 1];
73 for (i
= 0; i
< n_data
; i
++) {
74 error
->data
[i
] = dest
;
75 memcpy(dest
, data
[i
], datalen
[i
]);
78 error
->data
[n_data
] = NULL
;
82 interface_event(struct interface
*iface
, enum interface_event ev
)
84 struct interface_user
*dep
, *tmp
;
86 list_for_each_entry_safe(dep
, tmp
, &iface
->users
, list
)
87 dep
->cb(dep
, IFEV_UP
);
89 interface_queue_event(iface
, ev
);
93 interface_flush_state(struct interface
*iface
)
95 interface_ip_flush(&iface
->proto_ip
);
96 if (iface
->main_dev
.dev
)
97 device_release(&iface
->main_dev
);
98 if (iface
->l3_dev
!= &iface
->main_dev
&& iface
->l3_dev
->dev
)
99 device_release(iface
->l3_dev
);
103 mark_interface_down(struct interface
*iface
)
105 if (iface
->state
== IFS_UP
)
106 interface_event(iface
, IFEV_DOWN
);
107 interface_flush_state(iface
);
108 iface
->state
= IFS_DOWN
;
112 __interface_set_down(struct interface
*iface
, bool force
)
114 interface_clear_errors(iface
);
116 if (iface
->state
== IFS_DOWN
||
117 iface
->state
== IFS_TEARDOWN
)
120 if (iface
->state
== IFS_UP
)
121 interface_event(iface
, IFEV_DOWN
);
122 iface
->state
= IFS_TEARDOWN
;
123 interface_ip_flush(&iface
->config_ip
);
124 interface_ip_flush(&iface
->proto_ip
);
125 interface_proto_event(iface
->proto
, PROTO_CMD_TEARDOWN
, force
);
127 interface_flush_state(iface
);
131 interface_cb(struct device_user
*dep
, enum device_event ev
)
133 struct interface
*iface
;
136 iface
= container_of(dep
, struct interface
, main_dev
);
141 case DEV_EVENT_REMOVE
:
148 interface_set_available(iface
, new_state
);
152 interface_set_available(struct interface
*iface
, bool new_state
)
154 if (iface
->available
== new_state
)
157 D(INTERFACE
, "Interface '%s', available=%d\n", iface
->name
, new_state
);
158 iface
->available
= new_state
;
161 if (iface
->autostart
&& !config_init
)
162 interface_set_up(iface
);
164 __interface_set_down(iface
, true);
168 interface_add_user(struct interface_user
*dep
, struct interface
*iface
)
171 list_add(&dep
->list
, &iface
->users
);
172 if (iface
->state
== IFS_UP
)
173 dep
->cb(dep
, IFEV_UP
);
177 interface_remove_user(struct interface_user
*dep
)
179 list_del_init(&dep
->list
);
184 interface_claim_device(struct interface
*iface
)
189 !(iface
->proto_handler
->flags
& PROTO_FLAG_NODEV
)) {
190 dev
= device_get(iface
->ifname
, true);
192 device_add_user(&iface
->main_dev
, dev
);
194 if (iface
->proto_handler
->flags
& PROTO_FLAG_INIT_AVAILABLE
)
195 interface_set_available(iface
, true);
200 interface_cleanup(struct interface
*iface
, bool reload
)
202 struct interface_user
*dep
, *tmp
;
204 list_for_each_entry_safe(dep
, tmp
, &iface
->users
, list
)
205 interface_remove_user(dep
);
207 interface_ip_flush(&iface
->config_ip
);
208 interface_flush_state(iface
);
209 interface_clear_errors(iface
);
210 if (iface
->main_dev
.dev
&&
211 (!reload
|| !iface
->main_dev
.hotplug
))
212 device_remove_user(&iface
->main_dev
);
213 iface
->l3_dev
= &iface
->main_dev
;
214 interface_set_proto_state(iface
, NULL
);
218 interface_do_free(struct interface
*iface
)
220 interface_cleanup(iface
, false);
222 netifd_ubus_remove_interface(iface
);
223 avl_delete(&interfaces
.avl
, &iface
->node
.avl
);
228 interface_do_reload(struct interface
*iface
)
230 interface_cleanup(iface
, true);
231 proto_init_interface(iface
, iface
->config
);
232 interface_claim_device(iface
);
236 interface_handle_config_change(struct interface
*iface
)
238 switch(iface
->config_state
) {
242 interface_do_reload(iface
);
245 interface_do_free(iface
);
248 if (iface
->autostart
&& iface
->available
)
249 interface_set_up(iface
);
253 interface_proto_cb(struct interface_proto_state
*state
, enum interface_proto_event ev
)
255 struct interface
*iface
= state
->iface
;
259 if (iface
->state
!= IFS_SETUP
)
262 interface_ip_set_enabled(&iface
->config_ip
, true);
263 system_flush_routes();
264 iface
->state
= IFS_UP
;
265 iface
->start_time
= system_get_rtime();
266 interface_event(iface
, IFEV_UP
);
267 interface_write_resolv_conf();
268 netifd_log_message(L_NOTICE
, "Interface '%s' is now up\n", iface
->name
);
271 if (iface
->state
== IFS_DOWN
)
274 netifd_log_message(L_NOTICE
, "Interface '%s' is now down\n", iface
->name
);
275 interface_ip_set_enabled(&iface
->config_ip
, false);
276 system_flush_routes();
277 mark_interface_down(iface
);
278 interface_handle_config_change(iface
);
280 case IFPEV_LINK_LOST
:
281 if (iface
->state
!= IFS_UP
)
284 netifd_log_message(L_NOTICE
, "Interface '%s' has lost the connection\n", iface
->name
);
285 if (iface
->state
== IFS_UP
)
286 interface_event(iface
, IFEV_DOWN
);
287 iface
->state
= IFS_SETUP
;
292 void interface_set_proto_state(struct interface
*iface
, struct interface_proto_state
*state
)
295 iface
->proto
->free(iface
->proto
);
298 iface
->state
= IFS_DOWN
;
299 iface
->proto
= state
;
303 state
->proto_event
= interface_proto_cb
;
304 state
->iface
= iface
;
308 interface_init(struct interface
*iface
, const char *name
,
309 struct blob_attr
*config
)
311 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
312 struct blob_attr
*cur
;
313 const char *proto_name
= NULL
;
315 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
316 INIT_LIST_HEAD(&iface
->errors
);
317 INIT_LIST_HEAD(&iface
->users
);
318 INIT_LIST_HEAD(&iface
->hotplug_list
);
319 interface_ip_init(&iface
->proto_ip
, iface
);
320 interface_ip_init(&iface
->config_ip
, iface
);
321 iface
->config_ip
.enabled
= false;
323 iface
->main_dev
.cb
= interface_cb
;
324 iface
->l3_dev
= &iface
->main_dev
;
326 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
327 blob_data(config
), blob_len(config
));
329 if ((cur
= tb
[IFACE_ATTR_PROTO
]))
330 proto_name
= blobmsg_data(cur
);
332 proto_attach_interface(iface
, proto_name
);
334 iface
->autostart
= blobmsg_get_bool_default(tb
[IFACE_ATTR_AUTO
], true);
335 iface
->proto_ip
.no_defaultroute
=
336 !blobmsg_get_bool_default(tb
[IFACE_ATTR_DEFAULTROUTE
], true);
338 iface
->config_autostart
= iface
->autostart
;
342 interface_add(struct interface
*iface
, struct blob_attr
*config
)
344 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
345 struct blob_attr
*cur
;
347 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
348 blob_data(config
), blob_len(config
));
350 if ((cur
= tb
[IFACE_ATTR_IFNAME
]))
351 iface
->ifname
= blobmsg_data(cur
);
353 iface
->config
= config
;
354 vlist_add(&interfaces
, &iface
->node
, iface
->name
);
358 interface_remove_link(struct interface
*iface
, struct device
*dev
)
360 struct device
*mdev
= iface
->main_dev
.dev
;
362 if (mdev
&& mdev
->hotplug_ops
)
363 return mdev
->hotplug_ops
->del(mdev
, dev
);
365 if (!iface
->main_dev
.hotplug
)
366 return UBUS_STATUS_INVALID_ARGUMENT
;
368 if (dev
!= iface
->main_dev
.dev
)
369 return UBUS_STATUS_INVALID_ARGUMENT
;
371 device_remove_user(&iface
->main_dev
);
376 interface_add_link(struct interface
*iface
, struct device
*dev
)
378 struct device
*mdev
= iface
->main_dev
.dev
;
383 if (iface
->main_dev
.hotplug
)
384 device_remove_user(&iface
->main_dev
);
387 if (mdev
->hotplug_ops
)
388 return mdev
->hotplug_ops
->add(mdev
, dev
);
390 return UBUS_STATUS_NOT_SUPPORTED
;
393 device_add_user(&iface
->main_dev
, dev
);
394 iface
->main_dev
.hotplug
= true;
399 interface_set_up(struct interface
*iface
)
403 iface
->autostart
= true;
405 if (iface
->state
!= IFS_DOWN
)
408 interface_clear_errors(iface
);
409 if (!iface
->available
) {
410 interface_add_error(iface
, "interface", "NO_DEVICE", NULL
, 0);
414 if (iface
->main_dev
.dev
) {
415 ret
= device_claim(&iface
->main_dev
);
420 iface
->state
= IFS_SETUP
;
421 ret
= interface_proto_event(iface
->proto
, PROTO_CMD_SETUP
, false);
423 mark_interface_down(iface
);
431 interface_set_down(struct interface
*iface
)
434 vlist_for_each_element(&interfaces
, iface
, node
)
435 __interface_set_down(iface
, false);
437 iface
->autostart
= false;
438 __interface_set_down(iface
, false);
445 interface_start_pending(void)
447 struct interface
*iface
;
449 vlist_for_each_element(&interfaces
, iface
, node
) {
450 if (iface
->available
&& iface
->autostart
)
451 interface_set_up(iface
);
456 set_config_state(struct interface
*iface
, enum interface_config_state s
)
458 iface
->config_state
= s
;
459 if (iface
->state
== IFS_DOWN
)
460 interface_handle_config_change(iface
);
462 __interface_set_down(iface
, false);
466 interface_update_start(struct interface
*iface
)
468 interface_ip_update_start(&iface
->proto_ip
);
472 interface_update_complete(struct interface
*iface
)
474 struct device_route
*route
;
476 interface_ip_update_complete(&iface
->proto_ip
);
477 vlist_for_each_element(&iface
->config_ip
.route
, route
, node
) {
478 if (iface
->l3_dev
->dev
) {
479 system_add_route(iface
->l3_dev
->dev
, route
);
480 route
->enabled
= true;
486 interface_change_config(struct interface
*if_old
, struct interface
*if_new
)
488 struct blob_attr
*old_config
= if_old
->config
;
489 const char *old_ifname
= if_old
->ifname
;
490 const struct proto_handler
*proto
= if_old
->proto_handler
;
492 interface_clear_errors(if_old
);
493 if_old
->config
= if_new
->config
;
494 if (!if_old
->config_autostart
&& if_new
->config_autostart
)
495 if_old
->autostart
= true;
497 if_old
->config_autostart
= if_new
->config_autostart
;
498 if_old
->ifname
= if_new
->ifname
;
499 if_old
->proto_handler
= if_new
->proto_handler
;
501 if ((!!old_ifname
!= !!if_new
->ifname
) ||
502 (old_ifname
&& strcmp(old_ifname
, if_new
->ifname
) != 0) ||
503 proto
!= if_new
->proto_handler
) {
504 D(INTERFACE
, "Reload interface '%s' because of ifname/proto change\n",
509 if (!proto
->config_params
)
510 D(INTERFACE
, "No config parameters for interface '%s'\n",
512 else if (!config_check_equal(old_config
, if_new
->config
,
513 proto
->config_params
)) {
514 D(INTERFACE
, "Reload interface '%s because of config changes\n",
519 if (if_old
->proto_ip
.no_defaultroute
!= if_new
->proto_ip
.no_defaultroute
) {
520 if_old
->proto_ip
.no_defaultroute
= if_new
->proto_ip
.no_defaultroute
;
521 interface_ip_set_enabled(&if_old
->proto_ip
, if_old
->proto_ip
.enabled
);
527 set_config_state(if_old
, IFC_RELOAD
);
534 interface_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
535 struct vlist_node
*node_old
)
537 struct interface
*if_old
= container_of(node_old
, struct interface
, node
);
538 struct interface
*if_new
= container_of(node_new
, struct interface
, node
);
540 if (node_old
&& node_new
) {
541 D(INTERFACE
, "Update interface '%s'\n", if_new
->name
);
542 interface_change_config(if_old
, if_new
);
543 } else if (node_old
) {
544 D(INTERFACE
, "Remove interface '%s'\n", if_old
->name
);
545 set_config_state(if_old
, IFC_REMOVE
);
546 } else if (node_new
) {
547 D(INTERFACE
, "Create interface '%s'\n", if_new
->name
);
548 proto_init_interface(if_new
, if_new
->config
);
549 interface_claim_device(if_new
);
550 netifd_ubus_add_interface(if_new
);
556 interface_init_list(void)
558 vlist_init(&interfaces
, avl_strcmp
, interface_update
);
559 interfaces
.keep_old
= true;
560 interfaces
.no_delete
= true;