1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 3*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 4*7c478bd9Sstevel@tonic-gate */ 5*7c478bd9Sstevel@tonic-gate 6*7c478bd9Sstevel@tonic-gate /* 7*7c478bd9Sstevel@tonic-gate * Copyright (c) 1982, 1986 Regents of the University of California. 8*7c478bd9Sstevel@tonic-gate * All rights reserved. 9*7c478bd9Sstevel@tonic-gate * 10*7c478bd9Sstevel@tonic-gate * Redistribution and use in source and binary forms are permitted 11*7c478bd9Sstevel@tonic-gate * provided that this notice is preserved and that due credit is given 12*7c478bd9Sstevel@tonic-gate * to the University of California at Berkeley. The name of the University 13*7c478bd9Sstevel@tonic-gate * may not be used to endorse or promote products derived from this 14*7c478bd9Sstevel@tonic-gate * software without specific prior written permission. This software 15*7c478bd9Sstevel@tonic-gate * is provided ``as is'' without express or implied warranty. 16*7c478bd9Sstevel@tonic-gate */ 17*7c478bd9Sstevel@tonic-gate 18*7c478bd9Sstevel@tonic-gate /* 19*7c478bd9Sstevel@tonic-gate * Definitions for internet protocol version 4. 20*7c478bd9Sstevel@tonic-gate * Per RFC 791, September 1981. 21*7c478bd9Sstevel@tonic-gate */ 22*7c478bd9Sstevel@tonic-gate 23*7c478bd9Sstevel@tonic-gate #ifndef _NETINET_IP_H 24*7c478bd9Sstevel@tonic-gate #define _NETINET_IP_H 25*7c478bd9Sstevel@tonic-gate 26*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 27*7c478bd9Sstevel@tonic-gate /* ip.h 1.13 88/08/19 SMI; from UCB 7.6.1.1 3/15/88 */ 28*7c478bd9Sstevel@tonic-gate 29*7c478bd9Sstevel@tonic-gate #include <sys/isa_defs.h> 30*7c478bd9Sstevel@tonic-gate 31*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 32*7c478bd9Sstevel@tonic-gate extern "C" { 33*7c478bd9Sstevel@tonic-gate #endif 34*7c478bd9Sstevel@tonic-gate 35*7c478bd9Sstevel@tonic-gate #define IPVERSION 4 36*7c478bd9Sstevel@tonic-gate 37*7c478bd9Sstevel@tonic-gate /* 38*7c478bd9Sstevel@tonic-gate * Structure of an internet header, naked of options. 39*7c478bd9Sstevel@tonic-gate */ 40*7c478bd9Sstevel@tonic-gate struct ip { 41*7c478bd9Sstevel@tonic-gate #ifdef _BIT_FIELDS_LTOH 42*7c478bd9Sstevel@tonic-gate uchar_t ip_hl:4, /* header length */ 43*7c478bd9Sstevel@tonic-gate ip_v:4; /* version */ 44*7c478bd9Sstevel@tonic-gate #else 45*7c478bd9Sstevel@tonic-gate uchar_t ip_v:4, /* version */ 46*7c478bd9Sstevel@tonic-gate ip_hl:4; /* header length */ 47*7c478bd9Sstevel@tonic-gate #endif 48*7c478bd9Sstevel@tonic-gate uchar_t ip_tos; /* type of service */ 49*7c478bd9Sstevel@tonic-gate ushort_t ip_len; /* total length */ 50*7c478bd9Sstevel@tonic-gate ushort_t ip_id; /* identification */ 51*7c478bd9Sstevel@tonic-gate ushort_t ip_off; /* fragment offset field */ 52*7c478bd9Sstevel@tonic-gate #define IP_DF 0x4000 /* dont fragment flag */ 53*7c478bd9Sstevel@tonic-gate #define IP_MF 0x2000 /* more fragments flag */ 54*7c478bd9Sstevel@tonic-gate uchar_t ip_ttl; /* time to live */ 55*7c478bd9Sstevel@tonic-gate uchar_t ip_p; /* protocol */ 56*7c478bd9Sstevel@tonic-gate ushort_t ip_sum; /* checksum */ 57*7c478bd9Sstevel@tonic-gate struct in_addr ip_src, ip_dst; /* source and dest address */ 58*7c478bd9Sstevel@tonic-gate }; 59*7c478bd9Sstevel@tonic-gate 60*7c478bd9Sstevel@tonic-gate #define IP_MAXPACKET 65535 /* maximum packet size */ 61*7c478bd9Sstevel@tonic-gate 62*7c478bd9Sstevel@tonic-gate /* 63*7c478bd9Sstevel@tonic-gate * Definitions for IP type of service (ip_tos) 64*7c478bd9Sstevel@tonic-gate */ 65*7c478bd9Sstevel@tonic-gate #define IPTOS_LOWDELAY 0x10 66*7c478bd9Sstevel@tonic-gate #define IPTOS_THROUGHPUT 0x08 67*7c478bd9Sstevel@tonic-gate #define IPTOS_RELIABILITY 0x04 68*7c478bd9Sstevel@tonic-gate #define IPTOS_ECT 0x02 /* ECN-Capable Transport flag */ 69*7c478bd9Sstevel@tonic-gate #define IPTOS_CE 0x01 /* ECN-Congestion Experienced flag */ 70*7c478bd9Sstevel@tonic-gate 71*7c478bd9Sstevel@tonic-gate /* 72*7c478bd9Sstevel@tonic-gate * Definitions for IP precedence (also in ip_tos) (hopefully unused) 73*7c478bd9Sstevel@tonic-gate */ 74*7c478bd9Sstevel@tonic-gate #define IPTOS_PREC_NETCONTROL 0xe0 75*7c478bd9Sstevel@tonic-gate #define IPTOS_PREC_INTERNETCONTROL 0xc0 76*7c478bd9Sstevel@tonic-gate #define IPTOS_PREC_CRITIC_ECP 0xa0 77*7c478bd9Sstevel@tonic-gate #define IPTOS_PREC_FLASHOVERRIDE 0x80 78*7c478bd9Sstevel@tonic-gate #define IPTOS_PREC_FLASH 0x60 79*7c478bd9Sstevel@tonic-gate #define IPTOS_PREC_IMMEDIATE 0x40 80*7c478bd9Sstevel@tonic-gate #define IPTOS_PREC_PRIORITY 0x20 81*7c478bd9Sstevel@tonic-gate #define IPTOS_PREC_ROUTINE 0x00 82*7c478bd9Sstevel@tonic-gate 83*7c478bd9Sstevel@tonic-gate /* 84*7c478bd9Sstevel@tonic-gate * Definitions for options. 85*7c478bd9Sstevel@tonic-gate */ 86*7c478bd9Sstevel@tonic-gate 87*7c478bd9Sstevel@tonic-gate /* Bits in the option value */ 88*7c478bd9Sstevel@tonic-gate #define IPOPT_COPY 0x80 89*7c478bd9Sstevel@tonic-gate 90*7c478bd9Sstevel@tonic-gate #define IPOPT_COPIED(o) ((o)&0x80) 91*7c478bd9Sstevel@tonic-gate #define IPOPT_CLASS(o) ((o)&0x60) 92*7c478bd9Sstevel@tonic-gate #define IPOPT_NUMBER(o) ((o)&0x1f) 93*7c478bd9Sstevel@tonic-gate 94*7c478bd9Sstevel@tonic-gate #define IPOPT_CONTROL 0x00 95*7c478bd9Sstevel@tonic-gate #define IPOPT_RESERVED1 0x20 96*7c478bd9Sstevel@tonic-gate #define IPOPT_DEBMEAS 0x40 97*7c478bd9Sstevel@tonic-gate #define IPOPT_RESERVED2 0x60 98*7c478bd9Sstevel@tonic-gate 99*7c478bd9Sstevel@tonic-gate #define IPOPT_EOL 0x00 /* end of option list */ 100*7c478bd9Sstevel@tonic-gate #define IPOPT_NOP 0x01 /* no operation */ 101*7c478bd9Sstevel@tonic-gate 102*7c478bd9Sstevel@tonic-gate #define IPOPT_RR 0x07 /* record packet route */ 103*7c478bd9Sstevel@tonic-gate #define IPOPT_RTRALERT 0x14 /* router alert */ 104*7c478bd9Sstevel@tonic-gate #define IPOPT_TS 0x44 /* timestamp */ 105*7c478bd9Sstevel@tonic-gate #define IPOPT_SECURITY 0x82 /* provide s,c,h,tcc */ 106*7c478bd9Sstevel@tonic-gate #define IPOPT_LSRR 0x83 /* loose source route */ 107*7c478bd9Sstevel@tonic-gate #define IPOPT_EXTSEC 0x85 108*7c478bd9Sstevel@tonic-gate #define IPOPT_COMSEC 0x86 109*7c478bd9Sstevel@tonic-gate #define IPOPT_SATID 0x88 /* satnet id */ 110*7c478bd9Sstevel@tonic-gate #define IPOPT_SSRR 0x89 /* strict source route */ 111*7c478bd9Sstevel@tonic-gate #define IPOPT_RA 0x94 112*7c478bd9Sstevel@tonic-gate #define IPOPT_SDMDD 0x95 113*7c478bd9Sstevel@tonic-gate 114*7c478bd9Sstevel@tonic-gate /* 115*7c478bd9Sstevel@tonic-gate * Offsets to fields in options other than EOL and NOP. 116*7c478bd9Sstevel@tonic-gate */ 117*7c478bd9Sstevel@tonic-gate #define IPOPT_OPTVAL 0 /* option ID */ 118*7c478bd9Sstevel@tonic-gate #define IPOPT_OLEN 1 /* option length */ 119*7c478bd9Sstevel@tonic-gate #define IPOPT_OFFSET 2 /* offset within option */ 120*7c478bd9Sstevel@tonic-gate #define IPOPT_POS_OV_FLG 3 121*7c478bd9Sstevel@tonic-gate #define IPOPT_MINOFF 4 /* min value of IPOPT_OFFSET */ 122*7c478bd9Sstevel@tonic-gate 123*7c478bd9Sstevel@tonic-gate 124*7c478bd9Sstevel@tonic-gate /* Minimum for src and record route options */ 125*7c478bd9Sstevel@tonic-gate #define IPOPT_MINOFF_SR IPOPT_MINOFF 126*7c478bd9Sstevel@tonic-gate 127*7c478bd9Sstevel@tonic-gate /* 128*7c478bd9Sstevel@tonic-gate * Time stamp option structure. 129*7c478bd9Sstevel@tonic-gate */ 130*7c478bd9Sstevel@tonic-gate struct ip_timestamp { 131*7c478bd9Sstevel@tonic-gate uchar_t ipt_code; /* IPOPT_TS */ 132*7c478bd9Sstevel@tonic-gate uchar_t ipt_len; /* size of structure (variable) */ 133*7c478bd9Sstevel@tonic-gate uchar_t ipt_ptr; /* index of current entry */ 134*7c478bd9Sstevel@tonic-gate #ifdef _BIT_FIELDS_LTOH 135*7c478bd9Sstevel@tonic-gate uchar_t ipt_flg:4, /* flags, see below */ 136*7c478bd9Sstevel@tonic-gate ipt_oflw:4; /* overflow counter */ 137*7c478bd9Sstevel@tonic-gate #else 138*7c478bd9Sstevel@tonic-gate uchar_t ipt_oflw:4, /* overflow counter */ 139*7c478bd9Sstevel@tonic-gate ipt_flg:4; /* flags, see below */ 140*7c478bd9Sstevel@tonic-gate #endif 141*7c478bd9Sstevel@tonic-gate union ipt_timestamp { 142*7c478bd9Sstevel@tonic-gate uint32_t ipt_time[1]; 143*7c478bd9Sstevel@tonic-gate struct ipt_ta { 144*7c478bd9Sstevel@tonic-gate struct in_addr ipt_addr; 145*7c478bd9Sstevel@tonic-gate uint32_t ipt_time; 146*7c478bd9Sstevel@tonic-gate } ipt_ta[1]; 147*7c478bd9Sstevel@tonic-gate } ipt_timestamp; 148*7c478bd9Sstevel@tonic-gate }; 149*7c478bd9Sstevel@tonic-gate 150*7c478bd9Sstevel@tonic-gate /* flag bits for ipt_flg */ 151*7c478bd9Sstevel@tonic-gate #define IPOPT_TS_TSONLY 0 /* timestamps only */ 152*7c478bd9Sstevel@tonic-gate #define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */ 153*7c478bd9Sstevel@tonic-gate #define IPOPT_TS_PRESPEC 2 /* specified modules only */ 154*7c478bd9Sstevel@tonic-gate #define IPOPT_TS_PRESPEC_RFC791 3 155*7c478bd9Sstevel@tonic-gate 156*7c478bd9Sstevel@tonic-gate /* Minimum for timestamp option */ 157*7c478bd9Sstevel@tonic-gate #define IPOPT_MINOFF_IT 5 158*7c478bd9Sstevel@tonic-gate #define IPOPT_MINLEN_IT 5 159*7c478bd9Sstevel@tonic-gate 160*7c478bd9Sstevel@tonic-gate #define IPOPT_TS_TIMELEN 4 /* Timestamp size */ 161*7c478bd9Sstevel@tonic-gate 162*7c478bd9Sstevel@tonic-gate /* bits for security (not byte swapped) */ 163*7c478bd9Sstevel@tonic-gate #define IPOPT_SECUR_UNCLASS 0x0000 164*7c478bd9Sstevel@tonic-gate #define IPOPT_SECUR_CONFID 0xf135 165*7c478bd9Sstevel@tonic-gate #define IPOPT_SECUR_EFTO 0x789a 166*7c478bd9Sstevel@tonic-gate #define IPOPT_SECUR_MMMM 0xbc4d 167*7c478bd9Sstevel@tonic-gate #define IPOPT_SECUR_RESTR 0xaf13 168*7c478bd9Sstevel@tonic-gate #define IPOPT_SECUR_SECRET 0xd788 169*7c478bd9Sstevel@tonic-gate #define IPOPT_SECUR_TOPSECRET 0x6bc5 170*7c478bd9Sstevel@tonic-gate 171*7c478bd9Sstevel@tonic-gate /* 172*7c478bd9Sstevel@tonic-gate * Internet implementation parameters. 173*7c478bd9Sstevel@tonic-gate */ 174*7c478bd9Sstevel@tonic-gate #define MAXTTL 255 /* maximum time to live (seconds) */ 175*7c478bd9Sstevel@tonic-gate #define IPFRAGTTL 60 /* time to live for frags, slowhz */ 176*7c478bd9Sstevel@tonic-gate #define IPTTLDEC 1 /* subtracted when forwarding */ 177*7c478bd9Sstevel@tonic-gate 178*7c478bd9Sstevel@tonic-gate #define IP_MSS 576 /* default maximum segment size */ 179*7c478bd9Sstevel@tonic-gate 180*7c478bd9Sstevel@tonic-gate #ifdef __cplusplus 181*7c478bd9Sstevel@tonic-gate } 182*7c478bd9Sstevel@tonic-gate #endif 183*7c478bd9Sstevel@tonic-gate 184*7c478bd9Sstevel@tonic-gate #endif /* _NETINET_IP_H */ 185