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;