4 static struct blob_buf b;
5 static struct ubus_msg_buf *retmsg;
6 static int *retmsg_data;
8 static struct blob_attr *attrbuf[UBUS_ATTR_MAX];
10 typedef int (*ubus_cmd_cb)(struct ubus_client *cl, struct ubus_msg_buf *ub);
12 static const struct blob_attr_info ubus_policy[UBUS_ATTR_MAX] = {
13 [UBUS_ATTR_SIGNATURE] = { .type = BLOB_ATTR_NESTED },
14 [UBUS_ATTR_OBJTYPE] = { .type = BLOB_ATTR_INT32 },
15 [UBUS_ATTR_OBJPATH] = { .type = BLOB_ATTR_STRING },
18 struct blob_attr **ubus_parse_msg(struct blob_attr *msg)
20 blob_parse(msg, attrbuf, ubus_policy, UBUS_ATTR_MAX);
24 static void ubus_msg_init(struct ubus_msg_buf *ub, uint8_t type, uint16_t seq, uint32_t peer)
32 static struct ubus_msg_buf *ubus_msg_from_blob(bool shared)
34 return ubus_msg_new(b.head, blob_raw_len(b.head), shared);
37 static struct ubus_msg_buf *ubus_reply_from_blob(struct ubus_msg_buf *ub, bool shared)
39 struct ubus_msg_buf *new;
41 new = ubus_msg_new(b.head, blob_raw_len(b.head), shared);
45 ubus_msg_init(new, UBUS_MSG_DATA, ub->hdr.seq, ub->hdr.peer);
49 bool ubusd_send_hello(struct ubus_client *cl)
51 struct ubus_msg_buf *ub;
54 ub = ubus_msg_from_blob(true);
58 ubus_msg_init(ub, UBUS_MSG_HELLO, 0, cl->id.id);
59 ubus_msg_send(cl, ub);
63 static int ubusd_send_pong(struct ubus_client *cl, struct ubus_msg_buf *ub)
65 ub->hdr.type = UBUS_MSG_DATA;
66 ubus_msg_send(cl, ubus_msg_ref(ub));
70 static int ubusd_handle_publish(struct ubus_client *cl, struct ubus_msg_buf *ub)
72 struct ubus_object *obj;
73 struct blob_attr **attr;
75 attr = ubus_parse_msg(ub->data);
76 obj = ubusd_create_object(cl, attr);
78 return UBUS_STATUS_INVALID_ARGUMENT;
81 blob_put_int32(&b, UBUS_ATTR_OBJID, obj->id.id);
82 if (attr[UBUS_ATTR_SIGNATURE])
83 blob_put_int32(&b, UBUS_ATTR_OBJTYPE, obj->type->id.id);
85 ub = ubus_reply_from_blob(ub, true);
87 return UBUS_STATUS_NO_DATA;
89 ubus_msg_send(cl, ub);
93 static void ubusd_send_obj(struct ubus_client *cl, struct ubus_msg_buf *ub, struct ubus_object *obj)
95 struct ubus_method *m;
101 blob_put_string(&b, UBUS_ATTR_OBJPATH, obj->path.key);
102 blob_put_int32(&b, UBUS_ATTR_OBJID, obj->id.id);
104 s = blob_nest_start(&b, UBUS_ATTR_SIGNATURE);
105 list_for_each_entry(m, &obj->type->methods, list)
106 blob_put(&b, blob_id(m->data), blob_data(m->data), blob_len(m->data));
107 blob_nest_end(&b, s);
109 ub = ubus_reply_from_blob(ub, true);
113 ubus_msg_send(cl, ub);
116 static int ubusd_handle_lookup(struct ubus_client *cl, struct ubus_msg_buf *ub)
118 struct ubus_object *obj;
119 struct blob_attr **attr;
121 bool wildcard = false;
125 attr = ubus_parse_msg(ub->data);
126 if (!attr[UBUS_ATTR_OBJPATH]) {
127 avl_for_each_element(&path, obj, path)
128 ubusd_send_obj(cl, ub, obj);
132 objpath = blob_data(attr[UBUS_ATTR_OBJPATH]);
133 len = strlen(objpath);
134 if (objpath[len - 1] != '*') {
135 obj = avl_find_element(&path, objpath, obj, path);
137 return UBUS_STATUS_NOT_FOUND;
139 ubusd_send_obj(cl, ub, obj);
146 obj = avl_find_ge_element(&path, objpath, obj, path);
148 return UBUS_STATUS_NOT_FOUND;
150 while (!strncmp(objpath, obj->path.key, len)) {
152 ubusd_send_obj(cl, ub, obj);
153 if (obj == avl_last_element(&path, obj, path))
155 obj = avl_next_element(obj, path);
159 return UBUS_STATUS_NOT_FOUND;
164 static const ubus_cmd_cb handlers[__UBUS_MSG_LAST] = {
165 [UBUS_MSG_PING] = ubusd_send_pong,
166 [UBUS_MSG_PUBLISH] = ubusd_handle_publish,
167 [UBUS_MSG_LOOKUP] = ubusd_handle_lookup,
170 void ubusd_receive_message(struct ubus_client *cl, struct ubus_msg_buf *ub)
172 ubus_cmd_cb cb = NULL;
175 retmsg->hdr.seq = ub->hdr.seq;
176 retmsg->hdr.peer = ub->hdr.peer;
178 if (ub->hdr.type < __UBUS_MSG_LAST)
179 cb = handlers[ub->hdr.type];
184 ret = UBUS_STATUS_INVALID_COMMAND;
188 *retmsg_data = htonl(ret);
189 ubus_msg_send(cl, ubus_msg_ref(retmsg));
192 static void __init ubusd_proto_init(void)
194 blob_buf_init(&b, 0);
195 blob_put_int32(&b, UBUS_ATTR_STATUS, 0);
197 retmsg = ubus_msg_from_blob(false);
201 retmsg->hdr.type = UBUS_MSG_STATUS;
202 retmsg_data = blob_data(blob_data(retmsg->data));