udp.h

00001 /*
00002  * Copyright (c) 2013-2017, Arm Limited and affiliates.
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #ifndef UDP_H_
00019 #define UDP_H_
00020 
00021 extern void udp_checksum_write(buffer_t *buf);
00022 extern buffer_t *udp_down(buffer_t *buf);
00023 extern buffer_t *udp_up(buffer_t *buf);
00024 
00025 /* The network stack has some inbuilt special behaviour for these known ports */
00026 
00027 #define UDP_PORT_ECHO              7        /* Echo Protocol - RFC 862 */
00028 #define UDP_PORT_PANA              716      /* Protocol for carrying Authentication for Network Access - RFC 5191 */
00029 #define UDP_PORT_MLE               19788    /* Mesh Link Establishment - draft */
00030 
00031 #endif /* UDP_H_ */