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 = {};
52 bool no_reply = false;
55 ret = UBUS_STATUS_NOT_FOUND;
59 if (!attrbuf[UBUS_ATTR_METHOD]) {
60 ret = UBUS_STATUS_INVALID_ARGUMENT;
64 if (attrbuf[UBUS_ATTR_NO_REPLY])
65 no_reply = blob_get_int8(attrbuf[UBUS_ATTR_NO_REPLY]);
71 for (method = 0; method < obj->n_methods; method++)
72 if (!obj->methods[method].name ||
73 !strcmp(obj->methods[method].name,
74 blob_data(attrbuf[UBUS_ATTR_METHOD])))
78 ret = UBUS_STATUS_METHOD_NOT_FOUND;
82 ret = obj->methods[method].handler(ctx, obj, &req,
83 blob_data(attrbuf[UBUS_ATTR_METHOD]),
84 attrbuf[UBUS_ATTR_DATA]);
85 if (req.deferred || no_reply)
89 ubus_complete_deferred_request(ctx, &req, ret);
92 void __hidden ubus_process_obj_msg(struct ubus_context *ctx, struct ubus_msghdr *hdr)
94 void (*cb)(struct ubus_context *, struct ubus_msghdr *,
95 struct ubus_object *, struct blob_attr **);
96 struct blob_attr **attrbuf;
97 struct ubus_object *obj;
100 attrbuf = ubus_parse_msg(hdr->data);
101 if (!attrbuf[UBUS_ATTR_OBJID])
104 objid = blob_get_u32(attrbuf[UBUS_ATTR_OBJID]);
105 obj = avl_find_element(&ctx->objects, &objid, obj, avl);
108 case UBUS_MSG_INVOKE:
109 cb = ubus_process_invoke;
111 case UBUS_MSG_UNSUBSCRIBE:
112 cb = ubus_process_unsubscribe;
114 case UBUS_MSG_NOTIFY:
115 cb = ubus_process_notify;
120 cb(ctx, hdr, obj, attrbuf);
123 static void ubus_add_object_cb(struct ubus_request *req, int type, struct blob_attr *msg)
125 struct ubus_object *obj = req->priv;
126 struct blob_attr **attrbuf = ubus_parse_msg(msg);
128 if (!attrbuf[UBUS_ATTR_OBJID])
131 obj->id = blob_get_u32(attrbuf[UBUS_ATTR_OBJID]);
133 if (attrbuf[UBUS_ATTR_OBJTYPE])
134 obj->type->id = blob_get_u32(attrbuf[UBUS_ATTR_OBJTYPE]);
136 obj->avl.key = &obj->id;
137 avl_insert(&req->ctx->objects, &obj->avl);
140 static void ubus_push_method_data(const struct ubus_method *m)
145 mtbl = blobmsg_open_table(&b, m->name);
147 for (i = 0; i < m->n_policy; i++)
148 blobmsg_add_u32(&b, m->policy[i].name, m->policy[i].type);
150 blobmsg_close_table(&b, mtbl);
153 static bool ubus_push_object_type(const struct ubus_object_type *type)
158 s = blob_nest_start(&b, UBUS_ATTR_SIGNATURE);
160 for (i = 0; i < type->n_methods; i++)
161 ubus_push_method_data(&type->methods[i]);
163 blob_nest_end(&b, s);
168 int ubus_add_object(struct ubus_context *ctx, struct ubus_object *obj)
170 struct ubus_request req;
173 blob_buf_init(&b, 0);
175 if (obj->name && obj->type) {
176 blob_put_string(&b, UBUS_ATTR_OBJPATH, obj->name);
179 blob_put_int32(&b, UBUS_ATTR_OBJTYPE, obj->type->id);
180 else if (!ubus_push_object_type(obj->type))
181 return UBUS_STATUS_INVALID_ARGUMENT;
184 if (ubus_start_request(ctx, &req, b.head, UBUS_MSG_ADD_OBJECT, 0) < 0)
185 return UBUS_STATUS_INVALID_ARGUMENT;
187 req.raw_data_cb = ubus_add_object_cb;
189 ret = ubus_complete_request(ctx, &req, 0);
194 return UBUS_STATUS_NO_DATA;
199 static void ubus_remove_object_cb(struct ubus_request *req, int type, struct blob_attr *msg)
201 struct ubus_object *obj = req->priv;
202 struct blob_attr **attrbuf = ubus_parse_msg(msg);
204 if (!attrbuf[UBUS_ATTR_OBJID])
209 if (attrbuf[UBUS_ATTR_OBJTYPE] && obj->type)
212 avl_delete(&req->ctx->objects, &obj->avl);
215 int ubus_remove_object(struct ubus_context *ctx, struct ubus_object *obj)
217 struct ubus_request req;
220 blob_buf_init(&b, 0);
221 blob_put_int32(&b, UBUS_ATTR_OBJID, obj->id);
223 if (ubus_start_request(ctx, &req, b.head, UBUS_MSG_REMOVE_OBJECT, 0) < 0)
224 return UBUS_STATUS_INVALID_ARGUMENT;
226 req.raw_data_cb = ubus_remove_object_cb;
228 ret = ubus_complete_request(ctx, &req, 0);
233 return UBUS_STATUS_NO_DATA;