2 * Copyright (C) 2011 Felix Fietkau <nbd@openwrt.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License version 2.1
6 * as published by the Free Software Foundation
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
14 #include <sys/types.h>
16 #include <sys/socket.h>
20 #include <libubox/blob.h>
21 #include <libubox/blobmsg.h>
22 #include <libubox/usock.h>
27 #define STATIC_IOV(_var) { .iov_base = (char *) &(_var), .iov_len = sizeof(_var) }
29 const char *__ubus_strerror
[__UBUS_STATUS_LAST
] = {
30 [UBUS_STATUS_OK
] = "Success",
31 [UBUS_STATUS_INVALID_COMMAND
] = "Invalid command",
32 [UBUS_STATUS_INVALID_ARGUMENT
] = "Invalid argument",
33 [UBUS_STATUS_METHOD_NOT_FOUND
] = "Method not found",
34 [UBUS_STATUS_NOT_FOUND
] = "Not found",
35 [UBUS_STATUS_NO_DATA
] = "No response",
36 [UBUS_STATUS_PERMISSION_DENIED
] = "Permission denied",
37 [UBUS_STATUS_TIMEOUT
] = "Request timed out",
38 [UBUS_STATUS_NOT_SUPPORTED
] = "Operation not supported",
41 static struct blob_buf b
;
43 static const struct blob_attr_info ubus_policy
[UBUS_ATTR_MAX
] = {
44 [UBUS_ATTR_STATUS
] = { .type
= BLOB_ATTR_INT32
},
45 [UBUS_ATTR_OBJID
] = { .type
= BLOB_ATTR_INT32
},
46 [UBUS_ATTR_OBJPATH
] = { .type
= BLOB_ATTR_STRING
},
47 [UBUS_ATTR_METHOD
] = { .type
= BLOB_ATTR_STRING
},
49 static struct blob_attr
*attrbuf
[UBUS_ATTR_MAX
];
51 struct ubus_pending_data
{
52 struct list_head list
;
54 struct blob_attr data
[];
57 static int ubus_cmp_id(const void *k1
, const void *k2
, void *ptr
)
59 const uint32_t *id1
= k1
, *id2
= k2
;
67 static struct blob_attr
**ubus_parse_msg(struct blob_attr
*msg
)
69 blob_parse(msg
, attrbuf
, ubus_policy
, UBUS_ATTR_MAX
);
73 const char *ubus_strerror(int error
)
77 if (error
< 0 || error
>= __UBUS_STATUS_LAST
)
80 if (!__ubus_strerror
[error
])
83 return __ubus_strerror
[error
];
86 sprintf(err
, "Unknown error: %d", error
);
90 static int writev_retry(int fd
, struct iovec
*iov
, int iov_len
)
95 int cur_len
= writev(fd
, iov
, iov_len
);
99 /* turn off non-blocking mode */
100 fcntl(fd
, F_SETFL
, fcntl(fd
, F_GETFL
) &
111 while (cur_len
>= iov
->iov_len
) {
112 cur_len
-= iov
->iov_len
;
115 if (!cur_len
|| !iov_len
)
118 iov
->iov_len
-= cur_len
;
122 static int ubus_send_msg(struct ubus_context
*ctx
, uint32_t seq
,
123 struct blob_attr
*msg
, int cmd
, uint32_t peer
)
125 struct ubus_msghdr hdr
;
126 struct iovec iov
[2] = {
136 blob_buf_init(&b
, 0);
140 iov
[1].iov_base
= (char *) msg
;
141 iov
[1].iov_len
= blob_raw_len(msg
);
143 return writev_retry(ctx
->sock
.fd
, iov
, ARRAY_SIZE(iov
));
146 static int ubus_start_request(struct ubus_context
*ctx
, struct ubus_request
*req
,
147 struct blob_attr
*msg
, int cmd
, uint32_t peer
)
149 memset(req
, 0, sizeof(*req
));
151 if (msg
&& blob_pad_len(msg
) > UBUS_MAX_MSGLEN
)
154 INIT_LIST_HEAD(&req
->list
);
155 INIT_LIST_HEAD(&req
->pending
);
158 req
->seq
= ++ctx
->request_seq
;
159 return ubus_send_msg(ctx
, req
->seq
, msg
, cmd
, peer
);
162 static bool recv_retry(int fd
, struct iovec
*iov
, bool wait
)
166 while (iov
->iov_len
> 0) {
167 bytes
= read(fd
, iov
->iov_base
, iov
->iov_len
);
182 iov
->iov_len
-= bytes
;
183 iov
->iov_base
+= bytes
;
189 static bool ubus_validate_hdr(struct ubus_msghdr
*hdr
)
191 if (hdr
->version
!= 0)
194 if (blob_raw_len(hdr
->data
) < sizeof(*hdr
->data
))
197 if (blob_pad_len(hdr
->data
) > UBUS_MAX_MSGLEN
)
203 static bool get_next_msg(struct ubus_context
*ctx
)
205 struct iovec iov
= STATIC_IOV(ctx
->msgbuf
.hdr
);
207 /* receive header + start attribute */
208 iov
.iov_len
+= sizeof(struct blob_attr
);
209 if (!recv_retry(ctx
->sock
.fd
, &iov
, false))
212 iov
.iov_len
= blob_len(ctx
->msgbuf
.hdr
.data
);
213 if (iov
.iov_len
> 0 && !recv_retry(ctx
->sock
.fd
, &iov
, true))
216 return ubus_validate_hdr(&ctx
->msgbuf
.hdr
);
219 static bool ubus_get_status(struct ubus_msghdr
*hdr
, int *ret
)
221 ubus_parse_msg(hdr
->data
);
223 if (!attrbuf
[UBUS_ATTR_STATUS
])
226 *ret
= blob_get_u32(attrbuf
[UBUS_ATTR_STATUS
]);
230 static void req_data_cb(struct ubus_request
*req
, int type
, struct blob_attr
*data
)
232 struct blob_attr
**attr
;
234 if (req
->raw_data_cb
)
235 req
->raw_data_cb(req
, type
, data
);
240 attr
= ubus_parse_msg(data
);
241 req
->data_cb(req
, type
, attr
[UBUS_ATTR_DATA
]);
244 static void ubus_process_req_data(struct ubus_request
*req
)
246 struct ubus_pending_data
*data
;
248 while (!list_empty(&req
->pending
)) {
249 data
= list_first_entry(&req
->pending
,
250 struct ubus_pending_data
, list
);
251 list_del(&data
->list
);
253 req_data_cb(req
, data
->type
, data
->data
);
258 static void ubus_req_complete_cb(struct ubus_request
*req
)
260 ubus_complete_handler_t cb
= req
->complete_cb
;
265 req
->complete_cb
= NULL
;
266 cb(req
, req
->status_code
);
269 static int ubus_process_req_status(struct ubus_request
*req
, struct ubus_msghdr
*hdr
)
271 int ret
= UBUS_STATUS_INVALID_ARGUMENT
;
273 if (!list_empty(&req
->list
))
274 list_del(&req
->list
);
276 ubus_get_status(hdr
, &ret
);
277 req
->peer
= hdr
->peer
;
278 req
->status_msg
= true;
279 req
->status_code
= ret
;
281 ubus_req_complete_cb(req
);
286 static void ubus_req_data(struct ubus_request
*req
, struct ubus_msghdr
*hdr
)
288 struct ubus_pending_data
*data
;
293 req_data_cb(req
, hdr
->type
, hdr
->data
);
294 ubus_process_req_data(req
);
295 req
->blocked
= false;
298 ubus_req_complete_cb(req
);
303 len
= blob_raw_len(hdr
->data
);
304 data
= calloc(1, sizeof(*data
) + len
);
308 data
->type
= hdr
->type
;
309 memcpy(data
->data
, hdr
->data
, len
);
310 list_add(&data
->list
, &req
->pending
);
313 static struct ubus_request
*ubus_find_request(struct ubus_context
*ctx
, uint32_t seq
, uint32_t peer
)
315 struct ubus_request
*req
;
317 list_for_each_entry(req
, &ctx
->requests
, list
) {
318 if (seq
!= req
->seq
|| peer
!= req
->peer
)
326 static void ubus_process_invoke(struct ubus_context
*ctx
, struct ubus_msghdr
*hdr
)
328 struct ubus_request_data req
;
329 struct ubus_object
*obj
;
334 ubus_parse_msg(hdr
->data
);
336 if (!attrbuf
[UBUS_ATTR_OBJID
])
339 objid
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJID
]);
341 if (!attrbuf
[UBUS_ATTR_METHOD
]) {
342 ret
= UBUS_STATUS_INVALID_ARGUMENT
;
346 obj
= avl_find_element(&ctx
->objects
, &objid
, obj
, avl
);
348 ret
= UBUS_STATUS_NOT_FOUND
;
352 for (method
= 0; method
< obj
->n_methods
; method
++)
353 if (!obj
->methods
[method
].name
||
354 !strcmp(obj
->methods
[method
].name
,
355 blob_data(attrbuf
[UBUS_ATTR_METHOD
])))
359 ret
= UBUS_STATUS_METHOD_NOT_FOUND
;
364 req
.peer
= hdr
->peer
;
366 ret
= obj
->methods
[method
].handler(ctx
, obj
, &req
,
367 blob_data(attrbuf
[UBUS_ATTR_METHOD
]),
368 attrbuf
[UBUS_ATTR_DATA
]);
371 blob_buf_init(&b
, 0);
372 blob_put_int32(&b
, UBUS_ATTR_STATUS
, ret
);
373 blob_put_int32(&b
, UBUS_ATTR_OBJID
, objid
);
374 ubus_send_msg(ctx
, hdr
->seq
, b
.head
, UBUS_MSG_STATUS
, hdr
->peer
);
377 static void ubus_process_msg(struct ubus_context
*ctx
, struct ubus_msghdr
*hdr
)
379 struct ubus_request
*req
;
382 case UBUS_MSG_STATUS
:
383 req
= ubus_find_request(ctx
, hdr
->seq
, hdr
->peer
);
387 ubus_process_req_status(req
, hdr
);
391 req
= ubus_find_request(ctx
, hdr
->seq
, hdr
->peer
);
392 if (req
&& (req
->data_cb
|| req
->raw_data_cb
))
393 ubus_req_data(req
, hdr
);
396 case UBUS_MSG_INVOKE
:
397 ubus_process_invoke(ctx
, hdr
);
402 void ubus_abort_request(struct ubus_context
*ctx
, struct ubus_request
*req
)
404 if (!list_empty(&req
->list
))
407 req
->cancelled
= true;
408 ubus_process_req_data(req
);
409 list_del(&req
->list
);
412 void ubus_complete_request_async(struct ubus_context
*ctx
, struct ubus_request
*req
)
414 if (!list_empty(&req
->list
))
417 list_add(&req
->list
, &ctx
->requests
);
420 static void ubus_handle_data(struct uloop_fd
*u
, unsigned int events
)
422 struct ubus_context
*ctx
= container_of(u
, struct ubus_context
, sock
);
423 struct ubus_msghdr
*hdr
= &ctx
->msgbuf
.hdr
;
425 while (get_next_msg(ctx
)) {
426 ubus_process_msg(ctx
, hdr
);
432 ctx
->connection_lost(ctx
);
435 static void ubus_sync_req_cb(struct ubus_request
*req
, int ret
)
437 req
->status_msg
= true;
438 req
->status_code
= ret
;
442 struct ubus_sync_req_cb
{
443 struct uloop_timeout timeout
;
444 struct ubus_request
*req
;
447 static void ubus_sync_req_timeout_cb(struct uloop_timeout
*timeout
)
449 struct ubus_sync_req_cb
*cb
;
451 cb
= container_of(timeout
, struct ubus_sync_req_cb
, timeout
);
452 ubus_sync_req_cb(cb
->req
, UBUS_STATUS_TIMEOUT
);
455 int ubus_complete_request(struct ubus_context
*ctx
, struct ubus_request
*req
,
458 struct ubus_sync_req_cb cb
;
459 ubus_complete_handler_t complete_cb
= req
->complete_cb
;
460 bool registered
= ctx
->sock
.registered
;
461 bool cancelled
= uloop_cancelled
;
462 int status
= UBUS_STATUS_NO_DATA
;
470 memset(&cb
, 0, sizeof(cb
));
472 cb
.timeout
.cb
= ubus_sync_req_timeout_cb
;
473 uloop_timeout_set(&cb
.timeout
, timeout
);
476 ubus_complete_request_async(ctx
, req
);
477 req
->complete_cb
= ubus_sync_req_cb
;
482 uloop_timeout_cancel(&cb
.timeout
);
485 status
= req
->status_code
;
487 req
->complete_cb
= complete_cb
;
488 if (req
->complete_cb
)
489 req
->complete_cb(req
, status
);
491 uloop_cancelled
= cancelled
;
493 uloop_fd_delete(&ctx
->sock
);
498 struct ubus_lookup_request
{
499 struct ubus_request req
;
500 ubus_lookup_handler_t cb
;
503 static void ubus_lookup_cb(struct ubus_request
*ureq
, int type
, struct blob_attr
*msg
)
505 struct ubus_lookup_request
*req
;
506 struct ubus_object_data obj
;
507 struct blob_attr
**attr
;
509 req
= container_of(ureq
, struct ubus_lookup_request
, req
);
510 attr
= ubus_parse_msg(msg
);
512 if (!attr
[UBUS_ATTR_OBJID
] || !attr
[UBUS_ATTR_OBJPATH
] ||
513 !attr
[UBUS_ATTR_OBJTYPE
])
516 memset(&obj
, 0, sizeof(obj
));
517 obj
.id
= blob_get_u32(attr
[UBUS_ATTR_OBJID
]);
518 obj
.path
= blob_data(attr
[UBUS_ATTR_OBJPATH
]);
519 obj
.type_id
= blob_get_u32(attr
[UBUS_ATTR_OBJTYPE
]);
520 obj
.signature
= attr
[UBUS_ATTR_SIGNATURE
];
521 req
->cb(ureq
->ctx
, &obj
, ureq
->priv
);
524 int ubus_lookup(struct ubus_context
*ctx
, const char *path
,
525 ubus_lookup_handler_t cb
, void *priv
)
527 struct ubus_lookup_request lookup
;
529 blob_buf_init(&b
, 0);
531 blob_put_string(&b
, UBUS_ATTR_OBJPATH
, path
);
533 if (ubus_start_request(ctx
, &lookup
.req
, b
.head
, UBUS_MSG_LOOKUP
, 0) < 0)
534 return UBUS_STATUS_INVALID_ARGUMENT
;
536 lookup
.req
.raw_data_cb
= ubus_lookup_cb
;
537 lookup
.req
.priv
= priv
;
539 return ubus_complete_request(ctx
, &lookup
.req
, 0);
542 static void ubus_lookup_id_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
544 struct blob_attr
**attr
;
545 uint32_t *id
= req
->priv
;
547 attr
= ubus_parse_msg(msg
);
549 if (!attr
[UBUS_ATTR_OBJID
])
552 *id
= blob_get_u32(attr
[UBUS_ATTR_OBJID
]);
555 int ubus_lookup_id(struct ubus_context
*ctx
, const char *path
, uint32_t *id
)
557 struct ubus_request req
;
559 blob_buf_init(&b
, 0);
561 blob_put_string(&b
, UBUS_ATTR_OBJPATH
, path
);
563 if (ubus_start_request(ctx
, &req
, b
.head
, UBUS_MSG_LOOKUP
, 0) < 0)
564 return UBUS_STATUS_INVALID_ARGUMENT
;
566 req
.raw_data_cb
= ubus_lookup_id_cb
;
569 return ubus_complete_request(ctx
, &req
, 0);
572 int ubus_send_reply(struct ubus_context
*ctx
, struct ubus_request_data
*req
,
573 struct blob_attr
*msg
)
577 blob_buf_init(&b
, 0);
578 blob_put_int32(&b
, UBUS_ATTR_OBJID
, req
->object
);
579 blob_put(&b
, UBUS_ATTR_DATA
, blob_data(msg
), blob_len(msg
));
580 ret
= ubus_send_msg(ctx
, req
->seq
, b
.head
, UBUS_MSG_DATA
, req
->peer
);
582 return UBUS_STATUS_NO_DATA
;
587 int ubus_invoke_async(struct ubus_context
*ctx
, uint32_t obj
, const char *method
,
588 struct blob_attr
*msg
, struct ubus_request
*req
)
590 blob_buf_init(&b
, 0);
591 blob_put_int32(&b
, UBUS_ATTR_OBJID
, obj
);
592 blob_put_string(&b
, UBUS_ATTR_METHOD
, method
);
594 blob_put(&b
, UBUS_ATTR_DATA
, blob_data(msg
), blob_len(msg
));
596 if (ubus_start_request(ctx
, req
, b
.head
, UBUS_MSG_INVOKE
, obj
) < 0)
597 return UBUS_STATUS_INVALID_ARGUMENT
;
602 int ubus_invoke(struct ubus_context
*ctx
, uint32_t obj
, const char *method
,
603 struct blob_attr
*msg
, ubus_data_handler_t cb
, void *priv
,
606 struct ubus_request req
;
608 ubus_invoke_async(ctx
, obj
, method
, msg
, &req
);
611 return ubus_complete_request(ctx
, &req
, timeout
);
614 static void ubus_add_object_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
616 struct ubus_object
*obj
= req
->priv
;
620 if (!attrbuf
[UBUS_ATTR_OBJID
])
623 obj
->id
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJID
]);
625 if (attrbuf
[UBUS_ATTR_OBJTYPE
])
626 obj
->type
->id
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJTYPE
]);
628 obj
->avl
.key
= &obj
->id
;
629 avl_insert(&req
->ctx
->objects
, &obj
->avl
);
632 static void ubus_push_method_data(const struct ubus_method
*m
)
637 mtbl
= blobmsg_open_table(&b
, m
->name
);
639 for (i
= 0; i
< m
->n_policy
; i
++)
640 blobmsg_add_u32(&b
, m
->policy
[i
].name
, m
->policy
[i
].type
);
642 blobmsg_close_table(&b
, mtbl
);
645 static bool ubus_push_object_type(const struct ubus_object_type
*type
)
650 s
= blob_nest_start(&b
, UBUS_ATTR_SIGNATURE
);
652 for (i
= 0; i
< type
->n_methods
; i
++)
653 ubus_push_method_data(&type
->methods
[i
]);
655 blob_nest_end(&b
, s
);
660 static int __ubus_add_object(struct ubus_context
*ctx
, struct ubus_object
*obj
)
662 struct ubus_request req
;
665 blob_buf_init(&b
, 0);
667 if (obj
->name
&& obj
->type
) {
668 blob_put_string(&b
, UBUS_ATTR_OBJPATH
, obj
->name
);
671 blob_put_int32(&b
, UBUS_ATTR_OBJTYPE
, obj
->type
->id
);
672 else if (!ubus_push_object_type(obj
->type
))
673 return UBUS_STATUS_INVALID_ARGUMENT
;
676 if (ubus_start_request(ctx
, &req
, b
.head
, UBUS_MSG_ADD_OBJECT
, 0) < 0)
677 return UBUS_STATUS_INVALID_ARGUMENT
;
679 req
.raw_data_cb
= ubus_add_object_cb
;
681 ret
= ubus_complete_request(ctx
, &req
, 0);
686 return UBUS_STATUS_NO_DATA
;
691 int ubus_add_object(struct ubus_context
*ctx
, struct ubus_object
*obj
)
693 if (!obj
->name
|| !obj
->type
)
694 return UBUS_STATUS_INVALID_ARGUMENT
;
696 return __ubus_add_object(ctx
, obj
);
699 static void ubus_remove_object_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
701 struct ubus_object
*obj
= req
->priv
;
705 if (!attrbuf
[UBUS_ATTR_OBJID
])
710 if (attrbuf
[UBUS_ATTR_OBJTYPE
] && obj
->type
)
713 avl_delete(&req
->ctx
->objects
, &obj
->avl
);
716 int ubus_remove_object(struct ubus_context
*ctx
, struct ubus_object
*obj
)
718 struct ubus_request req
;
721 blob_buf_init(&b
, 0);
722 blob_put_int32(&b
, UBUS_ATTR_OBJID
, obj
->id
);
724 if (ubus_start_request(ctx
, &req
, b
.head
, UBUS_MSG_REMOVE_OBJECT
, 0) < 0)
725 return UBUS_STATUS_INVALID_ARGUMENT
;
727 req
.raw_data_cb
= ubus_remove_object_cb
;
729 ret
= ubus_complete_request(ctx
, &req
, 0);
734 return UBUS_STATUS_NO_DATA
;
739 static int ubus_event_cb(struct ubus_context
*ctx
, struct ubus_object
*obj
,
740 struct ubus_request_data
*req
,
741 const char *method
, struct blob_attr
*msg
)
743 struct ubus_event_handler
*ev
;
745 ev
= container_of(obj
, struct ubus_event_handler
, obj
);
746 ev
->cb(ctx
, ev
, method
, msg
);
750 static const struct ubus_method event_method
= {
752 .handler
= ubus_event_cb
,
755 int ubus_register_event_handler(struct ubus_context
*ctx
,
756 struct ubus_event_handler
*ev
,
759 struct ubus_object
*obj
= &ev
->obj
;
764 obj
->methods
= &event_method
;
767 if (!!obj
->name
^ !!obj
->type
)
768 return UBUS_STATUS_INVALID_ARGUMENT
;
770 ret
= __ubus_add_object(ctx
, obj
);
775 /* use a second buffer, ubus_invoke() overwrites the primary one */
776 memset(&b2
, 0, sizeof(b2
));
777 blob_buf_init(&b2
, 0);
778 blobmsg_add_u32(&b2
, "object", obj
->id
);
780 blobmsg_add_string(&b2
, "pattern", pattern
);
782 return ubus_invoke(ctx
, UBUS_SYSTEM_OBJECT_EVENT
, "register", b2
.head
,
786 int ubus_send_event(struct ubus_context
*ctx
, const char *id
,
787 struct blob_attr
*data
)
789 struct ubus_request req
;
792 blob_buf_init(&b
, 0);
793 blob_put_int32(&b
, UBUS_ATTR_OBJID
, UBUS_SYSTEM_OBJECT_EVENT
);
794 blob_put_string(&b
, UBUS_ATTR_METHOD
, "send");
795 s
= blob_nest_start(&b
, UBUS_ATTR_DATA
);
796 blobmsg_add_string(&b
, "id", id
);
797 blobmsg_add_field(&b
, BLOBMSG_TYPE_TABLE
, "data", blob_data(data
), blob_len(data
));
798 blob_nest_end(&b
, s
);
800 if (ubus_start_request(ctx
, &req
, b
.head
, UBUS_MSG_INVOKE
, UBUS_SYSTEM_OBJECT_EVENT
) < 0)
801 return UBUS_STATUS_INVALID_ARGUMENT
;
803 return ubus_complete_request(ctx
, &req
, 0);
806 static void ubus_default_connection_lost(struct ubus_context
*ctx
)
808 if (ctx
->sock
.registered
)
812 struct ubus_context
*ubus_connect(const char *path
)
814 struct ubus_context
*ctx
;
816 struct ubus_msghdr hdr
;
817 struct blob_attr data
;
819 struct blob_attr
*buf
;
822 path
= UBUS_UNIX_SOCKET
;
824 ctx
= calloc(1, sizeof(*ctx
));
828 ctx
->sock
.fd
= usock(USOCK_UNIX
, path
, NULL
);
829 if (ctx
->sock
.fd
< 0)
832 ctx
->sock
.cb
= ubus_handle_data
;
834 if (read(ctx
->sock
.fd
, &hdr
, sizeof(hdr
)) != sizeof(hdr
))
837 if (!ubus_validate_hdr(&hdr
.hdr
))
840 if (hdr
.hdr
.type
!= UBUS_MSG_HELLO
)
843 buf
= calloc(1, blob_raw_len(&hdr
.data
));
847 memcpy(buf
, &hdr
.data
, sizeof(hdr
.data
));
848 if (read(ctx
->sock
.fd
, blob_data(buf
), blob_len(buf
)) != blob_len(buf
))
851 ctx
->local_id
= hdr
.hdr
.peer
;
854 ctx
->connection_lost
= ubus_default_connection_lost
;
856 INIT_LIST_HEAD(&ctx
->requests
);
857 avl_init(&ctx
->objects
, ubus_cmp_id
, false, NULL
);
874 void ubus_free(struct ubus_context
*ctx
)