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 interface_queue_event(iface
, ev
);
86 mark_interface_down(struct interface
*iface
)
88 interface_clear_dns(iface
);
89 vlist_flush_all(&iface
->proto_addr
);
90 vlist_flush_all(&iface
->proto_route
);
91 if (iface
->main_dev
.dev
)
92 device_release(&iface
->main_dev
);
93 iface
->state
= IFS_DOWN
;
97 __interface_set_up(struct interface
*iface
)
101 if (iface
->state
!= IFS_DOWN
)
104 if (iface
->main_dev
.dev
) {
105 ret
= device_claim(&iface
->main_dev
);
110 iface
->state
= IFS_SETUP
;
111 ret
= interface_proto_event(iface
->proto
, PROTO_CMD_SETUP
, false);
113 mark_interface_down(iface
);
122 __interface_set_down(struct interface
*iface
, bool force
)
124 interface_clear_errors(iface
);
126 if (iface
->state
== IFS_DOWN
||
127 iface
->state
== IFS_TEARDOWN
)
130 iface
->state
= IFS_TEARDOWN
;
131 interface_event(iface
, IFEV_DOWN
);
132 interface_proto_event(iface
->proto
, PROTO_CMD_TEARDOWN
, force
);
136 interface_cb(struct device_user
*dep
, enum device_event ev
)
138 struct interface
*iface
;
141 iface
= container_of(dep
, struct interface
, main_dev
);
146 case DEV_EVENT_REMOVE
:
153 interface_set_available(iface
, new_state
);
157 interface_set_available(struct interface
*iface
, bool new_state
)
159 if (iface
->available
== new_state
)
162 D(INTERFACE
, "Interface '%s', available=%d\n", iface
->name
, new_state
);
163 iface
->available
= new_state
;
166 if (iface
->autostart
&& !config_init
)
167 interface_set_up(iface
);
169 __interface_set_down(iface
, true);
173 interface_claim_device(struct interface
*iface
)
177 if (iface
->proto_handler
&&
178 !(iface
->proto_handler
->flags
& PROTO_FLAG_NODEV
)) {
179 dev
= device_get(iface
->ifname
, true);
181 device_add_user(&iface
->main_dev
, dev
);
187 interface_cleanup(struct interface
*iface
)
189 interface_clear_dns(iface
);
190 interface_clear_errors(iface
);
191 if (iface
->main_dev
.dev
)
192 device_remove_user(&iface
->main_dev
);
193 interface_set_proto_state(iface
, NULL
);
197 interface_do_free(struct interface
*iface
)
199 interface_cleanup(iface
);
201 netifd_ubus_remove_interface(iface
);
202 avl_delete(&interfaces
.avl
, &iface
->node
.avl
);
207 interface_do_reload(struct interface
*iface
)
209 interface_cleanup(iface
);
211 interface_claim_device(iface
);
212 proto_init_interface(iface
, iface
->config
);
214 if (iface
->autostart
&& !config_init
)
215 interface_set_up(iface
);
219 interface_handle_config_change(struct interface
*iface
)
221 switch(iface
->config_state
) {
225 interface_do_reload(iface
);
228 interface_do_free(iface
);
234 interface_proto_cb(struct interface_proto_state
*state
, enum interface_proto_event ev
)
236 struct interface
*iface
= state
->iface
;
240 if (iface
->state
!= IFS_SETUP
)
243 system_flush_routes();
244 iface
->state
= IFS_UP
;
245 iface
->start_time
= system_get_rtime();
246 interface_event(iface
, IFEV_UP
);
247 interface_write_resolv_conf();
250 if (iface
->state
== IFS_DOWN
)
253 system_flush_routes();
254 mark_interface_down(iface
);
255 interface_handle_config_change(iface
);
256 if (iface
->autostart
)
257 __interface_set_up(iface
);
259 case IFPEV_LINK_LOST
:
260 if (iface
->state
!= IFS_UP
)
263 iface
->state
= IFS_SETUP
;
264 interface_event(iface
, IFEV_DOWN
);
269 void interface_set_proto_state(struct interface
*iface
, struct interface_proto_state
*state
)
272 iface
->proto
->free(iface
->proto
);
275 iface
->state
= IFS_DOWN
;
276 iface
->proto
= state
;
280 state
->proto_event
= interface_proto_cb
;
281 state
->iface
= iface
;
285 interface_init(struct interface
*iface
, const char *name
,
286 struct blob_attr
*config
)
288 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
289 struct blob_attr
*cur
;
290 const char *proto_name
= NULL
;
292 strncpy(iface
->name
, name
, sizeof(iface
->name
) - 1);
293 INIT_LIST_HEAD(&iface
->errors
);
294 INIT_LIST_HEAD(&iface
->hotplug_list
);
295 INIT_LIST_HEAD(&iface
->proto_dns_search
);
296 INIT_LIST_HEAD(&iface
->proto_dns_servers
);
298 iface
->main_dev
.cb
= interface_cb
;
299 iface
->l3_dev
= &iface
->main_dev
;
301 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
302 blob_data(config
), blob_len(config
));
304 if ((cur
= tb
[IFACE_ATTR_PROTO
]))
305 proto_name
= blobmsg_data(cur
);
307 proto_attach_interface(iface
, proto_name
);
309 if ((cur
= tb
[IFACE_ATTR_AUTO
]))
310 iface
->autostart
= blobmsg_get_bool(cur
);
312 iface
->autostart
= true;
313 iface
->config_autostart
= iface
->autostart
;
317 interface_add(struct interface
*iface
, struct blob_attr
*config
)
319 struct blob_attr
*tb
[IFACE_ATTR_MAX
];
320 struct blob_attr
*cur
;
322 blobmsg_parse(iface_attrs
, IFACE_ATTR_MAX
, tb
,
323 blob_data(config
), blob_len(config
));
325 if ((cur
= tb
[IFACE_ATTR_IFNAME
]))
326 iface
->ifname
= blobmsg_data(cur
);
328 iface
->config
= config
;
329 vlist_add(&interfaces
, &iface
->node
);
333 interface_remove_link(struct interface
*iface
, struct device
*dev
)
335 struct device
*mdev
= iface
->main_dev
.dev
;
337 if (mdev
&& mdev
->hotplug_ops
) {
338 mdev
->hotplug_ops
->del(mdev
, dev
);
342 device_remove_user(&iface
->main_dev
);
346 interface_add_link(struct interface
*iface
, struct device
*dev
)
348 struct device
*mdev
= iface
->main_dev
.dev
;
350 if (mdev
&& mdev
->hotplug_ops
)
351 return mdev
->hotplug_ops
->add(mdev
, dev
);
353 if (iface
->main_dev
.dev
)
354 interface_remove_link(iface
, NULL
);
356 device_add_user(&iface
->main_dev
, dev
);
362 interface_set_up(struct interface
*iface
)
364 iface
->autostart
= true;
366 if (!iface
->available
) {
367 interface_add_error(iface
, "interface", "NO_DEVICE", NULL
, 0);
371 if (iface
->state
!= IFS_DOWN
)
374 return __interface_set_up(iface
);
378 interface_set_down(struct interface
*iface
)
381 vlist_for_each_element(&interfaces
, iface
, node
)
382 __interface_set_down(iface
, false);
384 iface
->autostart
= false;
385 __interface_set_down(iface
, false);
392 interface_start_pending(void)
394 struct interface
*iface
;
396 vlist_for_each_element(&interfaces
, iface
, node
) {
397 if (iface
->available
&& iface
->autostart
)
398 interface_set_up(iface
);
403 set_config_state(struct interface
*iface
, enum interface_config_state s
)
405 iface
->config_state
= s
;
406 if (iface
->state
== IFS_DOWN
)
407 interface_handle_config_change(iface
);
409 __interface_set_down(iface
, false);
413 interface_change_config(struct interface
*if_old
, struct interface
*if_new
)
415 struct blob_attr
*old_config
= if_old
->config
;
416 const char *old_ifname
= if_old
->ifname
;
417 const struct proto_handler
*proto
= if_old
->proto_handler
;
419 interface_clear_errors(if_old
);
420 if_old
->config
= if_new
->config
;
421 if (!if_old
->config_autostart
&& if_new
->config_autostart
)
422 if_old
->autostart
= true;
424 if_old
->config_autostart
= if_new
->config_autostart
;
425 if_old
->ifname
= if_new
->ifname
;
426 if_old
->proto_handler
= if_new
->proto_handler
;
428 if (strcmp(old_ifname
, if_new
->ifname
) != 0 ||
429 proto
!= if_new
->proto_handler
) {
430 D(INTERFACE
, "Reload interface '%s' because of ifname/proto change\n",
435 if (!proto
->config_params
)
436 D(INTERFACE
, "No config parameters for interface '%s'\n",
438 else if (!config_check_equal(old_config
, if_new
->config
,
439 proto
->config_params
)) {
440 D(INTERFACE
, "Reload interface '%s because of config changes\n",
448 set_config_state(if_old
, IFC_RELOAD
);
455 interface_update(struct vlist_tree
*tree
, struct vlist_node
*node_new
,
456 struct vlist_node
*node_old
)
458 struct interface
*if_old
= container_of(node_old
, struct interface
, node
);
459 struct interface
*if_new
= container_of(node_new
, struct interface
, node
);
461 if (node_old
&& node_new
) {
462 D(INTERFACE
, "Update interface '%s'\n", if_new
->name
);
463 interface_change_config(if_old
, if_new
);
464 } else if (node_old
) {
465 D(INTERFACE
, "Remove interface '%s'\n", if_old
->name
);
466 set_config_state(if_old
, IFC_REMOVE
);
467 } else if (node_new
) {
468 D(INTERFACE
, "Create interface '%s'\n", if_new
->name
);
469 interface_claim_device(if_new
);
470 proto_init_interface(if_new
, if_new
->config
);
471 interface_ip_init(if_new
);
472 netifd_ubus_add_interface(if_new
);
478 interface_init_list(void)
480 vlist_init(&interfaces
, avl_strcmp
, interface_update
,
481 struct interface
, node
, name
);
482 interfaces
.keep_old
= true;
483 interfaces
.no_delete
= true;