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
);
99 mark_interface_down(struct interface
*iface
)
101 interface_flush_state(iface
);
102 iface
->state
= IFS_DOWN
;
106 __interface_set_up(struct interface
*iface
)
110 if (iface
->state
!= IFS_DOWN
)
113 if (iface
->main_dev
.dev
) {
114 ret
= device_claim(&iface
->main_dev
);
119 iface
->state
= IFS_SETUP
;
120 ret
= interface_proto_event(iface
->proto
, PROTO_CMD_SETUP
, false);
122 mark_interface_down(iface
);
130 __interface_set_down(struct interface
*iface
, bool force
)
132 interface_clear_errors(iface
);
134 if (iface
->state
== IFS_DOWN
||
135 iface
->state
== IFS_TEARDOWN
)
138 iface
->state
= IFS_TEARDOWN
;
139 interface_event(iface
, IFEV_DOWN
);
140 interface_proto_event(iface
->proto
, PROTO_CMD_TEARDOWN
, force
);
142 interface_flush_state(iface
);
146 interface_cb(struct device_user
*dep
, enum device_event ev
)
148 struct interface
*iface
;
151 iface
= container_of(dep
, struct interface
, main_dev
);
156 case DEV_EVENT_REMOVE
:
163 interface_set_available(iface
, new_state
);
167 interface_set_available(struct interface
*iface
, bool new_state
)
169 if (iface
->available
== new_state
)
172 D(INTERFACE
, "Interface '%s', available=%d\n", iface
->name
, new_state
);
173 iface
->available
= new_state
;
176 if (iface
->autostart
&& !config_init
)
177 interface_set_up(iface
);
179 __interface_set_down(iface
, true);
183 interface_add_user(struct interface_user
*dep
, struct interface
*iface
)
186 list_add(&dep
->list
, &iface
->users
);
187 if (iface
->state
== IFS_UP
)
188 dep
->cb(dep
, IFEV_UP
);
192 interface_remove_user(struct interface_user
*dep
)
194 list_del_init(&dep
->list
);
199 interface_claim_device(struct interface
*iface
)
203 if (iface
->ifname
&& iface
->proto_handler
&&
204 !(iface
->proto_handler
->flags
& PROTO_FLAG_NODEV
)) {
205 dev
= device_get(iface
->ifname
, true);
207 device_add_user(&iface
->main_dev
, dev
);
213 interface_cleanup(struct interface
*iface
)
215 struct interface_user
*dep
, *tmp
;
217 list_for_each_entry_safe(dep
, tmp
, &iface
->users
, list
)
218 interface_remove_user(dep
);
220 interface_ip_flush(&iface
->config_ip
);
221 interface_flush_state(iface
);
222 interface_clear_errors(iface
);
223 if (iface
->main_dev
.dev
)
224 device_remove_user(&iface
->main_dev
);
225 iface
->l3_dev
= &iface
->main_dev
;
226 interface_set_proto_state(iface
, NULL
);
230 interface_do_free(struct interface
*iface
)
232 interface_cleanup(iface
);
234 netifd_ubus_remove_interface(iface
);
235 avl_delete(&interfaces
.avl
, &iface
->node
.avl
);
240 interface_do_reload(struct interface
*iface
)
242 interface_cleanup(iface
);
244 interface_claim_device(iface
);
245 proto_init_interface(iface
, iface
->config
);
247 if (iface
->autostart
&& !config_init
)
248 interface_set_up(iface
);
252 interface_handle_config_change(struct interface
*iface
)
254 switch(iface
->config_state
) {
258 interface_do_reload(iface
);
261 interface_do_free(iface
);
267 interface_proto_cb(struct interface_proto_state
*state
, enum interface_proto_event ev
)
269 struct interface
*iface
= state
->iface
;
273 if (iface
->state
!= IFS_SETUP
)
276 interface_ip_set_enabled(&iface
->config_ip
, true);
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 interface_ip_set_enabled(&iface
->config_ip
, false);
290 system_flush_routes();
291 mark_interface_down(iface
);
292 interface_handle_config_change(iface
);
293 if (iface
->l3_dev
->dev
)
294 device_release(iface
->l3_dev
);
295 if (iface
->autostart
&& iface
->available
)
296 __interface_set_up(iface
);
298 case IFPEV_LINK_LOST
:
299 if (iface
->state
!= IFS_UP
)
302 netifd_log_message(L_NOTICE
, "Interface '%s' has lost the connection\n", iface
->name
);
303 iface
->state
= IFS_SETUP
;
304 interface_event(iface
, IFEV_DOWN
);
309 void interface_set_proto_state(struct interface
*iface
, struct interface_proto_state
*state
)
312 iface
->proto
->free(iface
->proto
);
315 iface
->state
= IFS_DOWN
;
316 iface
->proto
= state
;
320 state
->proto_event
= interface_proto_cb
;
321 state
->iface
= iface
;
325 interface_init(struct interface
*iface
, const char *name
,
326 struct blob_attr
*config
)
328 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
329 struct blob_attr
*cur
;
330 const char *proto_name
= NULL
;
332 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
333 INIT_LIST_HEAD(&iface
->errors
);
334 INIT_LIST_HEAD(&iface
->users
);
335 INIT_LIST_HEAD(&iface
->hotplug_list
);
336 interface_ip_init(&iface
->proto_ip
, iface
);
337 interface_ip_init(&iface
->config_ip
, iface
);
338 iface
->config_ip
.enabled
= false;
340 iface
->main_dev
.cb
= interface_cb
;
341 iface
->l3_dev
= &iface
->main_dev
;
343 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
344 blob_data(config
), blob_len(config
));
346 if ((cur
= tb
[IFACE_ATTR_PROTO
]))
347 proto_name
= blobmsg_data(cur
);
349 proto_attach_interface(iface
, proto_name
);
351 if ((cur
= tb
[IFACE_ATTR_AUTO
]))
352 iface
->autostart
= blobmsg_get_bool(cur
);
354 iface
->autostart
= true;
355 iface
->config_autostart
= iface
->autostart
;
359 interface_add(struct interface
*iface
, struct blob_attr
*config
)
361 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
362 struct blob_attr
*cur
;
364 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
365 blob_data(config
), blob_len(config
));
367 if ((cur
= tb
[IFACE_ATTR_IFNAME
]))
368 iface
->ifname
= blobmsg_data(cur
);
370 iface
->config
= config
;
371 vlist_add(&interfaces
, &iface
->node
);
375 interface_remove_link(struct interface
*iface
, struct device
*dev
)
377 struct device
*mdev
= iface
->main_dev
.dev
;
379 if (mdev
&& mdev
->hotplug_ops
) {
380 mdev
->hotplug_ops
->del(mdev
, dev
);
384 device_remove_user(&iface
->main_dev
);
388 interface_add_link(struct interface
*iface
, struct device
*dev
)
390 struct device
*mdev
= iface
->main_dev
.dev
;
392 if (mdev
&& mdev
->hotplug_ops
)
393 return mdev
->hotplug_ops
->add(mdev
, dev
);
395 if (iface
->main_dev
.dev
)
396 interface_remove_link(iface
, NULL
);
398 device_add_user(&iface
->main_dev
, dev
);
404 interface_set_up(struct interface
*iface
)
406 iface
->autostart
= true;
408 if (iface
->state
!= IFS_DOWN
)
411 interface_clear_errors(iface
);
412 if (!iface
->available
) {
413 interface_add_error(iface
, "interface", "NO_DEVICE", NULL
, 0);
417 return __interface_set_up(iface
);
421 interface_set_down(struct interface
*iface
)
424 vlist_for_each_element(&interfaces
, iface
, node
)
425 __interface_set_down(iface
, false);
427 iface
->autostart
= false;
428 __interface_set_down(iface
, false);
435 interface_start_pending(void)
437 struct interface
*iface
;
439 vlist_for_each_element(&interfaces
, iface
, node
) {
440 if (iface
->available
&& iface
->autostart
)
441 interface_set_up(iface
);
446 set_config_state(struct interface
*iface
, enum interface_config_state s
)
448 iface
->config_state
= s
;
449 if (iface
->state
== IFS_DOWN
)
450 interface_handle_config_change(iface
);
452 __interface_set_down(iface
, false);
456 interface_update_start(struct interface
*iface
)
458 interface_ip_update_start(&iface
->proto_ip
);
462 interface_update_complete(struct interface
*iface
)
464 struct device_route
*route
;
466 interface_ip_update_complete(&iface
->proto_ip
);
467 vlist_for_each_element(&iface
->config_ip
.route
, route
, node
) {
468 if (iface
->l3_dev
->dev
)
469 system_add_route(iface
->l3_dev
->dev
, route
);
474 interface_change_config(struct interface
*if_old
, struct interface
*if_new
)
476 struct blob_attr
*old_config
= if_old
->config
;
477 const char *old_ifname
= if_old
->ifname
;
478 const struct proto_handler
*proto
= if_old
->proto_handler
;
480 interface_clear_errors(if_old
);
481 if_old
->config
= if_new
->config
;
482 if (!if_old
->config_autostart
&& if_new
->config_autostart
)
483 if_old
->autostart
= true;
485 if_old
->config_autostart
= if_new
->config_autostart
;
486 if_old
->ifname
= if_new
->ifname
;
487 if_old
->proto_handler
= if_new
->proto_handler
;
489 if (strcmp(old_ifname
, if_new
->ifname
) != 0 ||
490 proto
!= if_new
->proto_handler
) {
491 D(INTERFACE
, "Reload interface '%s' because of ifname/proto change\n",
496 if (!proto
->config_params
)
497 D(INTERFACE
, "No config parameters for interface '%s'\n",
499 else if (!config_check_equal(old_config
, if_new
->config
,
500 proto
->config_params
)) {
501 D(INTERFACE
, "Reload interface '%s because of config changes\n",
509 set_config_state(if_old
, IFC_RELOAD
);
516 interface_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
517 struct vlist_node
*node_old
)
519 struct interface
*if_old
= container_of(node_old
, struct interface
, node
);
520 struct interface
*if_new
= container_of(node_new
, struct interface
, node
);
522 if (node_old
&& node_new
) {
523 D(INTERFACE
, "Update interface '%s'\n", if_new
->name
);
524 interface_change_config(if_old
, if_new
);
525 } else if (node_old
) {
526 D(INTERFACE
, "Remove interface '%s'\n", if_old
->name
);
527 set_config_state(if_old
, IFC_REMOVE
);
528 } else if (node_new
) {
529 D(INTERFACE
, "Create interface '%s'\n", if_new
->name
);
530 interface_claim_device(if_new
);
531 proto_init_interface(if_new
, if_new
->config
);
532 netifd_ubus_add_interface(if_new
);
538 interface_init_list(void)
540 vlist_init(&interfaces
, avl_strcmp
, interface_update
,
541 struct interface
, node
, name
);
542 interfaces
.keep_old
= true;
543 interfaces
.no_delete
= true;