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_proto_event(iface
->proto
, PROTO_CMD_TEARDOWN
, force
);
125 interface_flush_state(iface
);
129 interface_cb(struct device_user
*dep
, enum device_event ev
)
131 struct interface
*iface
;
134 iface
= container_of(dep
, struct interface
, main_dev
);
139 case DEV_EVENT_REMOVE
:
146 interface_set_available(iface
, new_state
);
150 interface_set_available(struct interface
*iface
, bool new_state
)
152 if (iface
->available
== new_state
)
155 D(INTERFACE
, "Interface '%s', available=%d\n", iface
->name
, new_state
);
156 iface
->available
= new_state
;
159 if (iface
->autostart
&& !config_init
)
160 interface_set_up(iface
);
162 __interface_set_down(iface
, true);
166 interface_add_user(struct interface_user
*dep
, struct interface
*iface
)
169 list_add(&dep
->list
, &iface
->users
);
170 if (iface
->state
== IFS_UP
)
171 dep
->cb(dep
, IFEV_UP
);
175 interface_remove_user(struct interface_user
*dep
)
177 list_del_init(&dep
->list
);
182 interface_claim_device(struct interface
*iface
)
187 !(iface
->proto_handler
->flags
& PROTO_FLAG_NODEV
)) {
188 dev
= device_get(iface
->ifname
, true);
190 device_add_user(&iface
->main_dev
, dev
);
192 if (iface
->proto_handler
->flags
& PROTO_FLAG_INIT_AVAILABLE
)
193 interface_set_available(iface
, true);
198 interface_cleanup(struct interface
*iface
, bool reload
)
200 struct interface_user
*dep
, *tmp
;
202 list_for_each_entry_safe(dep
, tmp
, &iface
->users
, list
)
203 interface_remove_user(dep
);
205 interface_ip_flush(&iface
->config_ip
);
206 interface_flush_state(iface
);
207 interface_clear_errors(iface
);
208 if (iface
->main_dev
.dev
&&
209 (!reload
|| !iface
->main_dev
.hotplug
))
210 device_remove_user(&iface
->main_dev
);
211 iface
->l3_dev
= &iface
->main_dev
;
212 interface_set_proto_state(iface
, NULL
);
216 interface_do_free(struct interface
*iface
)
218 interface_cleanup(iface
, false);
220 netifd_ubus_remove_interface(iface
);
221 avl_delete(&interfaces
.avl
, &iface
->node
.avl
);
226 interface_do_reload(struct interface
*iface
)
228 interface_cleanup(iface
, true);
229 proto_init_interface(iface
, iface
->config
);
230 interface_claim_device(iface
);
234 interface_handle_config_change(struct interface
*iface
)
236 switch(iface
->config_state
) {
240 interface_do_reload(iface
);
243 interface_do_free(iface
);
246 if (iface
->autostart
&& iface
->available
)
247 interface_set_up(iface
);
251 interface_proto_cb(struct interface_proto_state
*state
, enum interface_proto_event ev
)
253 struct interface
*iface
= state
->iface
;
257 if (iface
->state
!= IFS_SETUP
)
260 interface_ip_set_enabled(&iface
->config_ip
, true);
261 system_flush_routes();
262 iface
->state
= IFS_UP
;
263 iface
->start_time
= system_get_rtime();
264 interface_event(iface
, IFEV_UP
);
265 interface_write_resolv_conf();
266 netifd_log_message(L_NOTICE
, "Interface '%s' is now up\n", iface
->name
);
269 if (iface
->state
== IFS_DOWN
)
272 netifd_log_message(L_NOTICE
, "Interface '%s' is now down\n", iface
->name
);
273 interface_ip_set_enabled(&iface
->config_ip
, false);
274 system_flush_routes();
275 mark_interface_down(iface
);
276 interface_handle_config_change(iface
);
278 case IFPEV_LINK_LOST
:
279 if (iface
->state
!= IFS_UP
)
282 netifd_log_message(L_NOTICE
, "Interface '%s' has lost the connection\n", iface
->name
);
283 if (iface
->state
== IFS_UP
)
284 interface_event(iface
, IFEV_DOWN
);
285 iface
->state
= IFS_SETUP
;
290 void interface_set_proto_state(struct interface
*iface
, struct interface_proto_state
*state
)
293 iface
->proto
->free(iface
->proto
);
296 iface
->state
= IFS_DOWN
;
297 iface
->proto
= state
;
301 state
->proto_event
= interface_proto_cb
;
302 state
->iface
= iface
;
306 interface_init(struct interface
*iface
, const char *name
,
307 struct blob_attr
*config
)
309 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
310 struct blob_attr
*cur
;
311 const char *proto_name
= NULL
;
313 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
314 INIT_LIST_HEAD(&iface
->errors
);
315 INIT_LIST_HEAD(&iface
->users
);
316 INIT_LIST_HEAD(&iface
->hotplug_list
);
317 interface_ip_init(&iface
->proto_ip
, iface
);
318 interface_ip_init(&iface
->config_ip
, iface
);
319 iface
->config_ip
.enabled
= false;
321 iface
->main_dev
.cb
= interface_cb
;
322 iface
->l3_dev
= &iface
->main_dev
;
324 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
325 blob_data(config
), blob_len(config
));
327 if ((cur
= tb
[IFACE_ATTR_PROTO
]))
328 proto_name
= blobmsg_data(cur
);
330 proto_attach_interface(iface
, proto_name
);
332 iface
->autostart
= blobmsg_get_bool_default(tb
[IFACE_ATTR_AUTO
], true);
333 iface
->proto_ip
.no_defaultroute
=
334 !blobmsg_get_bool_default(tb
[IFACE_ATTR_DEFAULTROUTE
], true);
336 iface
->config_autostart
= iface
->autostart
;
340 interface_add(struct interface
*iface
, struct blob_attr
*config
)
342 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
343 struct blob_attr
*cur
;
345 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
346 blob_data(config
), blob_len(config
));
348 if ((cur
= tb
[IFACE_ATTR_IFNAME
]))
349 iface
->ifname
= blobmsg_data(cur
);
351 iface
->config
= config
;
352 vlist_add(&interfaces
, &iface
->node
, iface
->name
);
356 interface_remove_link(struct interface
*iface
, struct device
*dev
)
358 struct device
*mdev
= iface
->main_dev
.dev
;
360 if (mdev
&& mdev
->hotplug_ops
)
361 return mdev
->hotplug_ops
->del(mdev
, dev
);
363 if (!iface
->main_dev
.hotplug
)
364 return UBUS_STATUS_INVALID_ARGUMENT
;
366 if (dev
!= iface
->main_dev
.dev
)
367 return UBUS_STATUS_INVALID_ARGUMENT
;
369 device_remove_user(&iface
->main_dev
);
374 interface_add_link(struct interface
*iface
, struct device
*dev
)
376 struct device
*mdev
= iface
->main_dev
.dev
;
381 if (iface
->main_dev
.hotplug
)
382 device_remove_user(&iface
->main_dev
);
385 if (mdev
->hotplug_ops
)
386 return mdev
->hotplug_ops
->add(mdev
, dev
);
388 return UBUS_STATUS_NOT_SUPPORTED
;
391 device_add_user(&iface
->main_dev
, dev
);
392 iface
->main_dev
.hotplug
= true;
397 interface_set_up(struct interface
*iface
)
401 iface
->autostart
= true;
403 if (iface
->state
!= IFS_DOWN
)
406 interface_clear_errors(iface
);
407 if (!iface
->available
) {
408 interface_add_error(iface
, "interface", "NO_DEVICE", NULL
, 0);
412 if (iface
->main_dev
.dev
) {
413 ret
= device_claim(&iface
->main_dev
);
418 iface
->state
= IFS_SETUP
;
419 ret
= interface_proto_event(iface
->proto
, PROTO_CMD_SETUP
, false);
421 mark_interface_down(iface
);
429 interface_set_down(struct interface
*iface
)
432 vlist_for_each_element(&interfaces
, iface
, node
)
433 __interface_set_down(iface
, false);
435 iface
->autostart
= false;
436 __interface_set_down(iface
, false);
443 interface_start_pending(void)
445 struct interface
*iface
;
447 vlist_for_each_element(&interfaces
, iface
, node
) {
448 if (iface
->available
&& iface
->autostart
)
449 interface_set_up(iface
);
454 set_config_state(struct interface
*iface
, enum interface_config_state s
)
456 iface
->config_state
= s
;
457 if (iface
->state
== IFS_DOWN
)
458 interface_handle_config_change(iface
);
460 __interface_set_down(iface
, false);
464 interface_update_start(struct interface
*iface
)
466 interface_ip_update_start(&iface
->proto_ip
);
470 interface_update_complete(struct interface
*iface
)
472 struct device_route
*route
;
474 interface_ip_update_complete(&iface
->proto_ip
);
475 vlist_for_each_element(&iface
->config_ip
.route
, route
, node
) {
476 if (iface
->l3_dev
->dev
) {
477 system_add_route(iface
->l3_dev
->dev
, route
);
478 route
->enabled
= true;
484 interface_change_config(struct interface
*if_old
, struct interface
*if_new
)
486 struct blob_attr
*old_config
= if_old
->config
;
487 const char *old_ifname
= if_old
->ifname
;
488 const struct proto_handler
*proto
= if_old
->proto_handler
;
490 interface_clear_errors(if_old
);
491 if_old
->config
= if_new
->config
;
492 if (!if_old
->config_autostart
&& if_new
->config_autostart
)
493 if_old
->autostart
= true;
495 if_old
->config_autostart
= if_new
->config_autostart
;
496 if_old
->ifname
= if_new
->ifname
;
497 if_old
->proto_handler
= if_new
->proto_handler
;
499 if ((!!old_ifname
!= !!if_new
->ifname
) ||
500 (old_ifname
&& strcmp(old_ifname
, if_new
->ifname
) != 0) ||
501 proto
!= if_new
->proto_handler
) {
502 D(INTERFACE
, "Reload interface '%s' because of ifname/proto change\n",
507 if (!proto
->config_params
)
508 D(INTERFACE
, "No config parameters for interface '%s'\n",
510 else if (!config_check_equal(old_config
, if_new
->config
,
511 proto
->config_params
)) {
512 D(INTERFACE
, "Reload interface '%s because of config changes\n",
517 if (if_old
->proto_ip
.no_defaultroute
!= if_new
->proto_ip
.no_defaultroute
) {
518 if_old
->proto_ip
.no_defaultroute
= if_new
->proto_ip
.no_defaultroute
;
519 interface_ip_set_enabled(&if_old
->proto_ip
, if_old
->proto_ip
.enabled
);
525 set_config_state(if_old
, IFC_RELOAD
);
532 interface_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
533 struct vlist_node
*node_old
)
535 struct interface
*if_old
= container_of(node_old
, struct interface
, node
);
536 struct interface
*if_new
= container_of(node_new
, struct interface
, node
);
538 if (node_old
&& node_new
) {
539 D(INTERFACE
, "Update interface '%s'\n", if_new
->name
);
540 interface_change_config(if_old
, if_new
);
541 } else if (node_old
) {
542 D(INTERFACE
, "Remove interface '%s'\n", if_old
->name
);
543 set_config_state(if_old
, IFC_REMOVE
);
544 } else if (node_new
) {
545 D(INTERFACE
, "Create interface '%s'\n", if_new
->name
);
546 proto_init_interface(if_new
, if_new
->config
);
547 interface_claim_device(if_new
);
548 netifd_ubus_add_interface(if_new
);
554 interface_init_list(void)
556 vlist_init(&interfaces
, avl_strcmp
, interface_update
);
557 interfaces
.keep_old
= true;
558 interfaces
.no_delete
= true;