161 lines
5.1 KiB
C
161 lines
5.1 KiB
C
/*
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******************************************************************************
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* HEADER FILE
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*
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* Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ip.h,v $ $Revision: 1.2 $
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* $Source: /home/interpeak/CVSRoot/ipxinc/include/netinet/ip.h,v $
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* $Author: lob $ $Date: 2004-08-24 11:42:34 $
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* $State: Exp $ $Locker: $
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*
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* INTERPEAK_COPYRIGHT_STRING
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* Design and implementation by Lennart Bang <lob@interpeak.se>
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******************************************************************************
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*/
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#ifndef IP_NETINET_IP_H
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#define IP_NETINET_IP_H
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/*
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****************************************************************************
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* 1 DESCRIPTION
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****************************************************************************
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*/
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/*
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****************************************************************************
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* 2 CONFIGURATION
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****************************************************************************
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*/
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#include "ipcom_config.h"
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/*
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****************************************************************************
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* 3 INCLUDE FILES
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****************************************************************************
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*/
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#include "sys/types.h"
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#include "netinet/in.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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****************************************************************************
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* 4 DEFINES
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****************************************************************************
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*/
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/*
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*===========================================================================
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* IP options
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*===========================================================================
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*/
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#define IPOPT_COPY 0x80
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#define IPOPT_CLASS_MASK 0x60
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#define IPOPT_NUMBER_MASK 0x1f
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#define IPOPT_COPIED(o) ((o) & IPOPT_COPY)
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#define IPOPT_CLASS(o) ((o) & IPOPT_CLASS_MASK)
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#define IPOPT_NUMBER(o) ((o) & IPOPT_NUMBER_MASK)
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#define IPOPT_CONTROL 0x00
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#define IPOPT_RESERVED1 0x20
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#define IPOPT_DEBMEAS 0x40
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#define IPOPT_MEASUREMENT IPOPT_DEBMEAS
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#define IPOPT_RESERVED2 0x60
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#define IPOPT_EOL 0 /* end of option list */
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#define IPOPT_END IPOPT_EOL
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#define IPOPT_NOP 1 /* no operation */
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#define IPOPT_NOOP IPOPT_NOP
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#define IPOPT_RR 7 /* record packet route */
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#define IPOPT_TS 68 /* timestamp */
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#define IPOPT_TIMESTAMP IPOPT_TS
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#define IPOPT_SECURITY 130 /* provide s,c,h,tcc */
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#define IPOPT_SEC IPOPT_SECURITY
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#define IPOPT_LSRR 131 /* loose source route */
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#define IPOPT_SATID 136 /* satnet id */
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#define IPOPT_SID IPOPT_SATID
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#define IPOPT_SSRR 137 /* strict source route */
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#define IPOPT_RA 148 /* router alert */
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/*
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*===========================================================================
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* misc
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*===========================================================================
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*/
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#define MAXTTL 255
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#define IPDEFTTL 64
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#define IPFRAGTTL 60
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#define IPTTLDEC 1
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#define IP_MSS 576
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#define IPVERSION 4
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#define IP_MAXPACKET 65535
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/*
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****************************************************************************
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* 5 TYPES
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****************************************************************************
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*/
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/*
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* Structure of an internet header, naked of options.
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*/
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struct ip
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{
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#ifdef IP_LITTLE_ENDIAN
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unsigned int ip_hl:4; /* header length */
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unsigned int ip_v:4; /* version */
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#elif defined(IP_BIG_ENDIAN)
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unsigned int ip_v:4; /* version */
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unsigned int ip_hl:4; /* header length */
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#else
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#error ENDIAN_NOT_DEFINED
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#endif
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u_int8_t ip_tos; /* type of service */
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unsigned short ip_len; /* total length */
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unsigned short ip_id; /* identification */
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unsigned short ip_off; /* fragment offset field */
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u_int8_t ip_ttl; /* time to live */
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u_int8_t ip_p; /* protocol */
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unsigned short ip_sum; /* checksum */
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struct in_addr ip_src, ip_dst; /* source and dest address */
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};
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#define IP_RF 0x8000 /* reserved fragment flag */
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#define IP_DF 0x4000 /* dont fragment flag */
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#define IP_MF 0x2000 /* more fragments flag */
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#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
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/*
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****************************************************************************
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* 6 FUNCTIONS
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****************************************************************************
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif
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/*
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****************************************************************************
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* END OF FILE
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****************************************************************************
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*/
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