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
);
30 s
->remove_cb(ctx
, s
, blob_get_u32(attrbuf
[UBUS_ATTR_TARGET
]));
34 ubus_process_notify(struct ubus_context
*ctx
, struct ubus_msghdr
*hdr
,
35 struct ubus_object
*obj
, struct blob_attr
**attrbuf
)
37 if (!obj
|| !attrbuf
[UBUS_ATTR_ACTIVE
])
40 obj
->has_subscribers
= blob_get_u8(attrbuf
[UBUS_ATTR_ACTIVE
]);
41 if (obj
->subscribe_cb
)
42 obj
->subscribe_cb(ctx
, obj
);
45 ubus_process_invoke(struct ubus_context
*ctx
, struct ubus_msghdr
*hdr
,
46 struct ubus_object
*obj
, struct blob_attr
**attrbuf
)
48 struct ubus_request_data req
= {};
51 bool no_reply
= false;
54 ret
= UBUS_STATUS_NOT_FOUND
;
58 if (!attrbuf
[UBUS_ATTR_METHOD
]) {
59 ret
= UBUS_STATUS_INVALID_ARGUMENT
;
63 if (attrbuf
[UBUS_ATTR_NO_REPLY
])
64 no_reply
= blob_get_int8(attrbuf
[UBUS_ATTR_NO_REPLY
]);
70 for (method
= 0; method
< obj
->n_methods
; method
++)
71 if (!obj
->methods
[method
].name
||
72 !strcmp(obj
->methods
[method
].name
,
73 blob_data(attrbuf
[UBUS_ATTR_METHOD
])))
77 ret
= UBUS_STATUS_METHOD_NOT_FOUND
;
81 ret
= obj
->methods
[method
].handler(ctx
, obj
, &req
,
82 blob_data(attrbuf
[UBUS_ATTR_METHOD
]),
83 attrbuf
[UBUS_ATTR_DATA
]);
84 if (req
.deferred
|| no_reply
)
88 ubus_complete_deferred_request(ctx
, &req
, ret
);
91 void __hidden
ubus_process_obj_msg(struct ubus_context
*ctx
, struct ubus_msghdr
*hdr
)
93 void (*cb
)(struct ubus_context
*, struct ubus_msghdr
*,
94 struct ubus_object
*, struct blob_attr
**);
95 struct blob_attr
**attrbuf
;
96 struct ubus_object
*obj
;
99 attrbuf
= ubus_parse_msg(hdr
->data
);
100 if (!attrbuf
[UBUS_ATTR_OBJID
])
103 objid
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJID
]);
104 obj
= avl_find_element(&ctx
->objects
, &objid
, obj
, avl
);
107 case UBUS_MSG_INVOKE
:
108 cb
= ubus_process_invoke
;
110 case UBUS_MSG_UNSUBSCRIBE
:
111 cb
= ubus_process_unsubscribe
;
113 case UBUS_MSG_NOTIFY
:
114 cb
= ubus_process_notify
;
119 cb(ctx
, hdr
, obj
, attrbuf
);
122 static void ubus_add_object_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
124 struct ubus_object
*obj
= req
->priv
;
125 struct blob_attr
**attrbuf
= ubus_parse_msg(msg
);
127 if (!attrbuf
[UBUS_ATTR_OBJID
])
130 obj
->id
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJID
]);
132 if (attrbuf
[UBUS_ATTR_OBJTYPE
])
133 obj
->type
->id
= blob_get_u32(attrbuf
[UBUS_ATTR_OBJTYPE
]);
135 obj
->avl
.key
= &obj
->id
;
136 avl_insert(&req
->ctx
->objects
, &obj
->avl
);
139 static void ubus_push_method_data(const struct ubus_method
*m
)
144 mtbl
= blobmsg_open_table(&b
, m
->name
);
146 for (i
= 0; i
< m
->n_policy
; i
++)
147 blobmsg_add_u32(&b
, m
->policy
[i
].name
, m
->policy
[i
].type
);
149 blobmsg_close_table(&b
, mtbl
);
152 static bool ubus_push_object_type(const struct ubus_object_type
*type
)
157 s
= blob_nest_start(&b
, UBUS_ATTR_SIGNATURE
);
159 for (i
= 0; i
< type
->n_methods
; i
++)
160 ubus_push_method_data(&type
->methods
[i
]);
162 blob_nest_end(&b
, s
);
167 int ubus_add_object(struct ubus_context
*ctx
, struct ubus_object
*obj
)
169 struct ubus_request req
;
172 blob_buf_init(&b
, 0);
174 if (obj
->name
&& obj
->type
) {
175 blob_put_string(&b
, UBUS_ATTR_OBJPATH
, obj
->name
);
178 blob_put_int32(&b
, UBUS_ATTR_OBJTYPE
, obj
->type
->id
);
179 else if (!ubus_push_object_type(obj
->type
))
180 return UBUS_STATUS_INVALID_ARGUMENT
;
183 if (ubus_start_request(ctx
, &req
, b
.head
, UBUS_MSG_ADD_OBJECT
, 0) < 0)
184 return UBUS_STATUS_INVALID_ARGUMENT
;
186 req
.raw_data_cb
= ubus_add_object_cb
;
188 ret
= ubus_complete_request(ctx
, &req
, 0);
193 return UBUS_STATUS_NO_DATA
;
198 static void ubus_remove_object_cb(struct ubus_request
*req
, int type
, struct blob_attr
*msg
)
200 struct ubus_object
*obj
= req
->priv
;
201 struct blob_attr
**attrbuf
= ubus_parse_msg(msg
);
203 if (!attrbuf
[UBUS_ATTR_OBJID
])
208 if (attrbuf
[UBUS_ATTR_OBJTYPE
] && obj
->type
)
211 avl_delete(&req
->ctx
->objects
, &obj
->avl
);
214 int ubus_remove_object(struct ubus_context
*ctx
, struct ubus_object
*obj
)
216 struct ubus_request req
;
219 blob_buf_init(&b
, 0);
220 blob_put_int32(&b
, UBUS_ATTR_OBJID
, obj
->id
);
222 if (ubus_start_request(ctx
, &req
, b
.head
, UBUS_MSG_REMOVE_OBJECT
, 0) < 0)
223 return UBUS_STATUS_INVALID_ARGUMENT
;
225 req
.raw_data_cb
= ubus_remove_object_cb
;
227 ret
= ubus_complete_request(ctx
, &req
, 0);
232 return UBUS_STATUS_NO_DATA
;