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
]);
72 if (attrbuf
[UBUS_ATTR_USER
] && attrbuf
[UBUS_ATTR_GROUP
]) {
73 req
.acl
.user
= blobmsg_get_string(attrbuf
[UBUS_ATTR_USER
]);
74 req
.acl
.group
= blobmsg_get_string(attrbuf
[UBUS_ATTR_GROUP
]);
75 req
.acl
.object
= obj
->name
;
77 for (method
= 0; method
< obj
->n_methods
; method
++)
78 if (!obj
->methods
[method
].name
||
79 !strcmp(obj
->methods
[method
].name
,
80 blob_data(attrbuf
[UBUS_ATTR_METHOD
])))
84 ret
= UBUS_STATUS_METHOD_NOT_FOUND
;
88 ret
= obj
->methods
[method
].handler(ctx
, obj
, &req
,
89 blob_data(attrbuf
[UBUS_ATTR_METHOD
]),
90 attrbuf
[UBUS_ATTR_DATA
]);
91 if (req
.deferred
|| no_reply
)
95 ubus_complete_deferred_request(ctx
, &req
, ret
);
98 void __hidden
ubus_process_obj_msg(struct ubus_context
*ctx
, struct ubus_msghdr_buf
*buf
)
100 void (*cb
)(struct ubus_context
*, struct ubus_msghdr
*,
101 struct ubus_object
*, struct blob_attr
**);
102 struct ubus_msghdr
*hdr
= &buf
->hdr
;
103 struct blob_attr
**attrbuf
;
104 struct ubus_object
*obj
;
106 void *prev_data
= NULL
;
108 attrbuf
= ubus_parse_msg(buf
->data
);
109 if (!attrbuf
[UBUS_ATTR_OBJID
])
112 objid
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJID
]);
113 obj
= avl_find_element(&ctx
->objects
, &objid
, obj
, avl
);
116 case UBUS_MSG_INVOKE
:
117 cb
= ubus_process_invoke
;
119 case UBUS_MSG_UNSUBSCRIBE
:
120 cb
= ubus_process_unsubscribe
;
122 case UBUS_MSG_NOTIFY
:
123 cb
= ubus_process_notify
;
129 if (buf
== &ctx
->msgbuf
) {
130 prev_data
= buf
->data
;
134 cb(ctx
, hdr
, obj
, attrbuf
);
140 buf
->data
= prev_data
;
144 static void ubus_add_object_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
146 struct ubus_object
*obj
= req
->priv
;
147 struct blob_attr
**attrbuf
= ubus_parse_msg(msg
);
149 if (!attrbuf
[UBUS_ATTR_OBJID
])
152 obj
->id
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJID
]);
154 if (attrbuf
[UBUS_ATTR_OBJTYPE
])
155 obj
->type
->id
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJTYPE
]);
157 obj
->avl
.key
= &obj
->id
;
158 avl_insert(&req
->ctx
->objects
, &obj
->avl
);
161 static void ubus_push_method_data(const struct ubus_method
*m
)
166 mtbl
= blobmsg_open_table(&b
, m
->name
);
168 for (i
= 0; i
< m
->n_policy
; i
++) {
169 if (m
->mask
&& !(m
->mask
& (1 << i
)))
172 blobmsg_add_u32(&b
, m
->policy
[i
].name
, m
->policy
[i
].type
);
175 blobmsg_close_table(&b
, mtbl
);
178 static bool ubus_push_object_type(const struct ubus_object_type
*type
)
183 s
= blob_nest_start(&b
, UBUS_ATTR_SIGNATURE
);
185 for (i
= 0; i
< type
->n_methods
; i
++)
186 ubus_push_method_data(&type
->methods
[i
]);
188 blob_nest_end(&b
, s
);
193 int ubus_add_object(struct ubus_context
*ctx
, struct ubus_object
*obj
)
195 struct ubus_request req
;
198 blob_buf_init(&b
, 0);
200 if (obj
->name
&& obj
->type
) {
201 blob_put_string(&b
, UBUS_ATTR_OBJPATH
, obj
->name
);
204 blob_put_int32(&b
, UBUS_ATTR_OBJTYPE
, obj
->type
->id
);
205 else if (!ubus_push_object_type(obj
->type
))
206 return UBUS_STATUS_INVALID_ARGUMENT
;
209 if (ubus_start_request(ctx
, &req
, b
.head
, UBUS_MSG_ADD_OBJECT
, 0) < 0)
210 return UBUS_STATUS_INVALID_ARGUMENT
;
212 req
.raw_data_cb
= ubus_add_object_cb
;
214 ret
= ubus_complete_request(ctx
, &req
, 0);
219 return UBUS_STATUS_NO_DATA
;
224 static void ubus_remove_object_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
226 struct ubus_object
*obj
= req
->priv
;
227 struct blob_attr
**attrbuf
= ubus_parse_msg(msg
);
229 if (!attrbuf
[UBUS_ATTR_OBJID
])
234 if (attrbuf
[UBUS_ATTR_OBJTYPE
] && obj
->type
)
237 avl_delete(&req
->ctx
->objects
, &obj
->avl
);
240 int ubus_remove_object(struct ubus_context
*ctx
, struct ubus_object
*obj
)
242 struct ubus_request req
;
245 blob_buf_init(&b
, 0);
246 blob_put_int32(&b
, UBUS_ATTR_OBJID
, obj
->id
);
248 if (ubus_start_request(ctx
, &req
, b
.head
, UBUS_MSG_REMOVE_OBJECT
, 0) < 0)
249 return UBUS_STATUS_INVALID_ARGUMENT
;
251 req
.raw_data_cb
= ubus_remove_object_cb
;
253 ret
= ubus_complete_request(ctx
, &req
, 0);
258 return UBUS_STATUS_NO_DATA
;