reactos/apps/utils/net/tracert/ip.h

   1 /*
   2  * Copyright (c) 1982, 1986, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)ip.h        8.2 (Berkeley) 6/1/94
  30  * $FreeBSD: src/sys/netinet/ip.h,v 1.16 1999/08/28 00:49:19 peter Exp $
  31  */
  32
  33 #ifndef _NETINET_IP_H_
  34 #define _NETINET_IP_H_
  35
  36 /*
  37  * Definitions for internet protocol version 4.
  38  * Per RFC 791, September 1981.
  39  */
  40 #define IPVERSION       4
  41
  42 /* A little magic to make the Windows build happy. */
  43 #if defined(_MSC_VER) || defined(__MINGW32__)
  44 #include <winsock2.h>
  45 #include <ws2tcpip.h>
  46 #include <time.h>
  47
  48 typedef u_short n_short;
  49 typedef u_int n_long;
  50 typedef u_int n_time;
  51
  52 #define EMSGSIZE WSAEMSGSIZE
  53 #define ENETUNREACH WSAENETUNREACH
  54 #define EHOSTUNREACH WSAEHOSTUNREACH
  55 #endif
  56
  57 /*
  58  * Structure of an internet header, naked of options.
  59  */
  60 struct ip {
  61 #ifdef _IP_VHL
  62         u_char  ip_vhl;                 /* version << 4 | header length >> 2 */
  63 #else
  64 #if BYTE_ORDER == LITTLE_ENDIAN
  65         u_int   ip_hl:4,                /* header length */
  66                 ip_v:4;                 /* version */
  67 #endif
  68 #if BYTE_ORDER == BIG_ENDIAN
  69         u_int   ip_v:4,                 /* version */
  70                 ip_hl:4;                /* header length */
  71 #endif
  72 #endif /* not _IP_VHL */
  73         u_char  ip_tos;                 /* type of service */
  74         u_short ip_len;                 /* total length */
  75         u_short ip_id;                  /* identification */
  76         u_short ip_off;                 /* fragment offset field */
  77 #define IP_RF 0x8000                    /* reserved fragment flag */
  78 #define IP_DF 0x4000                    /* don't fragment flag */
  79 #define IP_MF 0x2000                    /* more fragments flag */
  80 #define IP_OFFMASK 0x1fff               /* mask for fragmenting bits */
  81         u_char  ip_ttl;                 /* time to live */
  82         u_char  ip_p;                   /* protocol */
  83         u_short ip_sum;                 /* checksum */
  84         struct  in_addr ip_src,ip_dst;  /* source and dest address */
  85 };
  86
  87 #ifdef _IP_VHL
  88 #define IP_MAKE_VHL(v, hl)      ((v) << 4 | (hl))
  89 #define IP_VHL_HL(vhl)          ((vhl) & 0x0f)
  90 #define IP_VHL_V(vhl)           ((vhl) >> 4)
  91 #define IP_VHL_BORING           0x45
  92 #endif
  93
  94 #define IP_MAXPACKET    65535           /* maximum packet size */
  95
  96 /*
  97  * Definitions for IP type of service (ip_tos)
  98  */
  99 #define IPTOS_LOWDELAY          0x10
 100 #define IPTOS_THROUGHPUT        0x08
 101 #define IPTOS_RELIABILITY       0x04
 102 #define IPTOS_MINCOST           0x02
 103
 104 /*
 105  * Definitions for IP precedence (also in ip_tos) (hopefully unused)
 106  */
 107 #define IPTOS_PREC_NETCONTROL           0xe0
 108 #define IPTOS_PREC_INTERNETCONTROL      0xc0
 109 #define IPTOS_PREC_CRITIC_ECP           0xa0
 110 #define IPTOS_PREC_FLASHOVERRIDE        0x80
 111 #define IPTOS_PREC_FLASH                0x60
 112 #define IPTOS_PREC_IMMEDIATE            0x40
 113 #define IPTOS_PREC_PRIORITY             0x20
 114 #define IPTOS_PREC_ROUTINE              0x00
 115
 116 /*
 117  * Definitions for options.
 118  */
 119 #define IPOPT_COPIED(o)         ((o)&0x80)
 120 #define IPOPT_CLASS(o)          ((o)&0x60)
 121 #define IPOPT_NUMBER(o)         ((o)&0x1f)
 122
 123 #define IPOPT_CONTROL           0x00
 124 #define IPOPT_RESERVED1         0x20
 125 #define IPOPT_DEBMEAS           0x40
 126 #define IPOPT_RESERVED2         0x60
 127
 128 #define IPOPT_EOL               0               /* end of option list */
 129 #define IPOPT_NOP               1               /* no operation */
 130
 131 #define IPOPT_RR                7               /* record packet route */
 132 #define IPOPT_TS                68              /* timestamp */
 133 #define IPOPT_SECURITY          130             /* provide s,c,h,tcc */
 134 #define IPOPT_LSRR              131             /* loose source route */
 135 #define IPOPT_SATID             136             /* satnet id */
 136 #define IPOPT_SSRR              137             /* strict source route */
 137 #define IPOPT_RA                148             /* router alert */
 138
 139 /*
 140  * Offsets to fields in options other than EOL and NOP.
 141  */
 142 #define IPOPT_OPTVAL            0               /* option ID */
 143 #define IPOPT_OLEN              1               /* option length */
 144 #define IPOPT_OFFSET            2               /* offset within option */
 145 #define IPOPT_MINOFF            4               /* min value of above */
 146
 147 /*
 148  * Time stamp option structure.
 149  */
 150 struct  ip_timestamp {
 151         u_char  ipt_code;               /* IPOPT_TS */
 152         u_char  ipt_len;                /* size of structure (variable) */
 153         u_char  ipt_ptr;                /* index of current entry */
 154 #if BYTE_ORDER == LITTLE_ENDIAN
 155         u_int   ipt_flg:4,              /* flags, see below */
 156                 ipt_oflw:4;             /* overflow counter */
 157 #endif
 158 #if BYTE_ORDER == BIG_ENDIAN
 159         u_int   ipt_oflw:4,             /* overflow counter */
 160                 ipt_flg:4;              /* flags, see below */
 161 #endif
 162         union ipt_timestamp {
 163                 n_long  ipt_time[1];
 164                 struct  ipt_ta {
 165                         struct in_addr ipt_addr;
 166                         n_long ipt_time;
 167                 } ipt_ta[1];
 168         } ipt_timestamp;
 169 };
 170
 171 /* flag bits for ipt_flg */
 172 #define IPOPT_TS_TSONLY         0               /* timestamps only */
 173 #define IPOPT_TS_TSANDADDR      1               /* timestamps and addresses */
 174 #define IPOPT_TS_PRESPEC        3               /* specified modules only */
 175
 176 /* bits for security (not byte swapped) */
 177 #define IPOPT_SECUR_UNCLASS     0x0000
 178 #define IPOPT_SECUR_CONFID      0xf135
 179 #define IPOPT_SECUR_EFTO        0x789a
 180 #define IPOPT_SECUR_MMMM        0xbc4d
 181 #define IPOPT_SECUR_RESTR       0xaf13
 182 #define IPOPT_SECUR_SECRET      0xd788
 183 #define IPOPT_SECUR_TOPSECRET   0x6bc5
 184
 185 /*
 186  * Internet implementation parameters.
 187  */
 188 #define MAXTTL          255             /* maximum time to live (seconds) */
 189 #define IPDEFTTL        64              /* default ttl, from RFC 1340 */
 190 #define IPFRAGTTL       60              /* time to live for frags, slowhz */
 191 #define IPTTLDEC        1               /* subtracted when forwarding */
 192
 193 #define IP_MSS          576             /* default maximum segment size */
 194
 195 #endif