87 lines
2.8 KiB
C
87 lines
2.8 KiB
C
/****************************************************************************
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* include/netinet/ip.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NETINET_IP_H
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#define __INCLUDE_NETINET_IP_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <sys/socket.h>
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#include <netinet/in.h>
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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#define IPVERSION 4 /* IP version number */
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#define IPDEFTTL 64 /* default ttl, from RFC 1340 */
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/* Values for the TOS field */
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#define IPTOS_TOS_MASK 0x1e
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#define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK)
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#define IPTOS_LOWDELAY 0x10
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#define IPTOS_THROUGHPUT 0x08
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#define IPTOS_RELIABILITY 0x04
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#define IPTOS_MINCOST 0x02
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#define IPTOS_PREC_MASK 0xe0
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#define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK)
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#define IPTOS_PREC_NETCONTROL 0xe0
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#define IPTOS_PREC_INTERNETCONTROL 0xc0
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#define IPTOS_PREC_CRITIC_ECP 0xa0
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#define IPTOS_PREC_FLASHOVERRIDE 0x80
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#define IPTOS_PREC_FLASH 0x60
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#define IPTOS_PREC_IMMEDIATE 0x40
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#define IPTOS_PREC_PRIORITY 0x20
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#define IPTOS_PREC_ROUTINE 0x00
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struct iphdr
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{
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#if __BYTE_ORDER == __LITTLE_ENDIAN
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unsigned int ihl:4;
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unsigned int version:4;
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#elif __BYTE_ORDER == __BIG_ENDIAN
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unsigned int version:4;
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unsigned int ihl:4;
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#else
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# error "unknown endian"
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#endif
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uint8_t tos;
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uint16_t tot_len;
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uint16_t id;
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uint16_t frag_off;
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uint8_t ttl;
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uint8_t protocol;
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uint16_t check;
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uint32_t saddr;
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uint32_t daddr;
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/* The options start here. */
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#endif /* __INCLUDE_NETINET_IP_H */
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