nuttx/include/netinet/ip.h
zhanghongyu f387b138d9 ip: add iphdr definition
adapts to third-party code compilation. in the process of porting ConnMan,
we encounter some situations where the structure is not defined, or the
returned data types do not match the expectations. Refer to the common
implementation of other systems and add relevant definitions.

Signed-off-by: zhanghongyu <zhanghongyu@xiaomi.com>
2023-05-04 19:35:16 +08:00

67 lines
2.2 KiB
C

/****************************************************************************
* include/netinet/ip.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __INCLUDE_NETINET_IP_H
#define __INCLUDE_NETINET_IP_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <sys/socket.h>
#include <netinet/in.h>
/****************************************************************************
* Public Type Definitions
****************************************************************************/
#define IPVERSION 4 /* IP version number */
#define IPDEFTTL 64 /* default ttl, from RFC 1340 */
struct iphdr
{
#if __BYTE_ORDER == __LITTLE_ENDIAN
unsigned int ihl:4;
unsigned int version:4;
#elif __BYTE_ORDER == __BIG_ENDIAN
unsigned int version:4;
unsigned int ihl:4;
#else
# error "unknown endian"
#endif
uint8_t tos;
uint16_t tot_len;
uint16_t id;
uint16_t frag_off;
uint8_t ttl;
uint8_t protocol;
uint16_t check;
uint32_t saddr;
uint32_t daddr;
/* The options start here. */
};
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
#endif /* __INCLUDE_NETINET_IP_H */