2 * Copyright (C) 2011-2012 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.
15 #include "libubus-internal.h"
18 ubus_process_unsubscribe(struct ubus_context
*ctx
, struct ubus_msghdr
*hdr
,
19 struct ubus_object
*obj
, struct blob_attr
**attrbuf
)
21 struct ubus_subscriber
*s
;
23 if (!obj
|| !attrbuf
[UBUS_ATTR_TARGET
])
26 if (obj
->methods
!= &watch_method
)
29 s
= container_of(obj
, struct ubus_subscriber
, obj
);
31 s
->remove_cb(ctx
, s
, blob_get_u32(attrbuf
[UBUS_ATTR_TARGET
]));
35 ubus_process_notify(struct ubus_context
*ctx
, struct ubus_msghdr
*hdr
,
36 struct ubus_object
*obj
, struct blob_attr
**attrbuf
)
38 if (!obj
|| !attrbuf
[UBUS_ATTR_ACTIVE
])
41 obj
->has_subscribers
= blob_get_u8(attrbuf
[UBUS_ATTR_ACTIVE
]);
42 if (obj
->subscribe_cb
)
43 obj
->subscribe_cb(ctx
, obj
);
46 ubus_process_invoke(struct ubus_context
*ctx
, struct ubus_msghdr
*hdr
,
47 struct ubus_object
*obj
, struct blob_attr
**attrbuf
)
49 struct ubus_request_data req
= {
54 bool no_reply
= false;
57 ret
= UBUS_STATUS_NOT_FOUND
;
61 if (!attrbuf
[UBUS_ATTR_METHOD
]) {
62 ret
= UBUS_STATUS_INVALID_ARGUMENT
;
66 if (attrbuf
[UBUS_ATTR_NO_REPLY
])
67 no_reply
= blob_get_int8(attrbuf
[UBUS_ATTR_NO_REPLY
]);
73 for (method
= 0; method
< obj
->n_methods
; method
++)
74 if (!obj
->methods
[method
].name
||
75 !strcmp(obj
->methods
[method
].name
,
76 blob_data(attrbuf
[UBUS_ATTR_METHOD
])))
80 ret
= UBUS_STATUS_METHOD_NOT_FOUND
;
84 ret
= obj
->methods
[method
].handler(ctx
, obj
, &req
,
85 blob_data(attrbuf
[UBUS_ATTR_METHOD
]),
86 attrbuf
[UBUS_ATTR_DATA
]);
87 if (req
.deferred
|| no_reply
)
91 ubus_complete_deferred_request(ctx
, &req
, ret
);
94 void __hidden
ubus_process_obj_msg(struct ubus_context
*ctx
, struct ubus_msghdr_buf
*buf
)
96 void (*cb
)(struct ubus_context
*, struct ubus_msghdr
*,
97 struct ubus_object
*, struct blob_attr
**);
98 struct ubus_msghdr
*hdr
= &buf
->hdr
;
99 struct blob_attr
**attrbuf
;
100 struct ubus_object
*obj
;
102 void *prev_data
= NULL
;
104 attrbuf
= ubus_parse_msg(buf
->data
);
105 if (!attrbuf
[UBUS_ATTR_OBJID
])
108 objid
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJID
]);
109 obj
= avl_find_element(&ctx
->objects
, &objid
, obj
, avl
);
112 case UBUS_MSG_INVOKE
:
113 cb
= ubus_process_invoke
;
115 case UBUS_MSG_UNSUBSCRIBE
:
116 cb
= ubus_process_unsubscribe
;
118 case UBUS_MSG_NOTIFY
:
119 cb
= ubus_process_notify
;
125 if (buf
== &ctx
->msgbuf
) {
126 prev_data
= buf
->data
;
130 cb(ctx
, hdr
, obj
, attrbuf
);
136 buf
->data
= prev_data
;
140 static void ubus_add_object_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
142 struct ubus_object
*obj
= req
->priv
;
143 struct blob_attr
**attrbuf
= ubus_parse_msg(msg
);
145 if (!attrbuf
[UBUS_ATTR_OBJID
])
148 obj
->id
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJID
]);
150 if (attrbuf
[UBUS_ATTR_OBJTYPE
])
151 obj
->type
->id
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJTYPE
]);
153 obj
->avl
.key
= &obj
->id
;
154 avl_insert(&req
->ctx
->objects
, &obj
->avl
);
157 static void ubus_push_method_data(const struct ubus_method
*m
)
162 mtbl
= blobmsg_open_table(&b
, m
->name
);
164 for (i
= 0; i
< m
->n_policy
; i
++) {
165 if (m
->mask
&& !(m
->mask
& (1 << i
)))
168 blobmsg_add_u32(&b
, m
->policy
[i
].name
, m
->policy
[i
].type
);
171 blobmsg_close_table(&b
, mtbl
);
174 static bool ubus_push_object_type(const struct ubus_object_type
*type
)
179 s
= blob_nest_start(&b
, UBUS_ATTR_SIGNATURE
);
181 for (i
= 0; i
< type
->n_methods
; i
++)
182 ubus_push_method_data(&type
->methods
[i
]);
184 blob_nest_end(&b
, s
);
189 int ubus_add_object(struct ubus_context
*ctx
, struct ubus_object
*obj
)
191 struct ubus_request req
;
194 blob_buf_init(&b
, 0);
196 if (obj
->name
&& obj
->type
) {
197 blob_put_string(&b
, UBUS_ATTR_OBJPATH
, obj
->name
);
200 blob_put_int32(&b
, UBUS_ATTR_OBJTYPE
, obj
->type
->id
);
201 else if (!ubus_push_object_type(obj
->type
))
202 return UBUS_STATUS_INVALID_ARGUMENT
;
205 if (ubus_start_request(ctx
, &req
, b
.head
, UBUS_MSG_ADD_OBJECT
, 0) < 0)
206 return UBUS_STATUS_INVALID_ARGUMENT
;
208 req
.raw_data_cb
= ubus_add_object_cb
;
210 ret
= ubus_complete_request(ctx
, &req
, 0);
215 return UBUS_STATUS_NO_DATA
;
220 static void ubus_remove_object_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
222 struct ubus_object
*obj
= req
->priv
;
223 struct blob_attr
**attrbuf
= ubus_parse_msg(msg
);
225 if (!attrbuf
[UBUS_ATTR_OBJID
])
230 if (attrbuf
[UBUS_ATTR_OBJTYPE
] && obj
->type
)
233 avl_delete(&req
->ctx
->objects
, &obj
->avl
);
236 int ubus_remove_object(struct ubus_context
*ctx
, struct ubus_object
*obj
)
238 struct ubus_request req
;
241 blob_buf_init(&b
, 0);
242 blob_put_int32(&b
, UBUS_ATTR_OBJID
, obj
->id
);
244 if (ubus_start_request(ctx
, &req
, b
.head
, UBUS_MSG_REMOVE_OBJECT
, 0) < 0)
245 return UBUS_STATUS_INVALID_ARGUMENT
;
247 req
.raw_data_cb
= ubus_remove_object_cb
;
249 ret
= ubus_complete_request(ctx
, &req
, 0);
254 return UBUS_STATUS_NO_DATA
;