dll/win32/iphlpapi/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 #ifdef __REACTOS__
  65 #if BYTE_ORDER == LITTLE_ENDIAN
  66         u_char  ip_hl : 4,              /* header length */
  67                 ip_v : 4;                       /* version */
  68 #endif
  69 #if BYTE_ORDER == BIG_ENDIAN
  70         u_char  ip_v : 4,                       /* version */
  71                 ip_hl : 4;              /* header length */
  72 #endif
  73 #else
  74 #if BYTE_ORDER == LITTLE_ENDIAN
  75         u_int   ip_hl:4,                /* header length */
  76                 ip_v:4;                 /* version */
  77 #endif
  78 #if BYTE_ORDER == BIG_ENDIAN
  79         u_int   ip_v:4,                 /* version */
  80                 ip_hl:4;                /* header length */
  81 #endif
  82 #endif /* __REACTOS__ */
  83 #endif /* not _IP_VHL */
  84         u_char  ip_tos;                 /* type of service */
  85         u_short ip_len;                 /* total length */
  86         u_short ip_id;                  /* identification */
  87         u_short ip_off;                 /* fragment offset field */
  88 #define IP_RF 0x8000                    /* reserved fragment flag */
  89 #define IP_DF 0x4000                    /* don't fragment flag */
  90 #define IP_MF 0x2000                    /* more fragments flag */
  91 #define IP_OFFMASK 0x1fff               /* mask for fragmenting bits */
  92         u_char  ip_ttl;                 /* time to live */
  93         u_char  ip_p;                   /* protocol */
  94         u_short ip_sum;                 /* checksum */
  95         struct  in_addr ip_src,ip_dst;  /* source and dest address */
  96 };
  97
  98 #ifdef _IP_VHL
  99 #define IP_MAKE_VHL(v, hl)      ((v) << 4 | (hl))
 100 #define IP_VHL_HL(vhl)          ((vhl) & 0x0f)
 101 #define IP_VHL_V(vhl)           ((vhl) >> 4)
 102 #define IP_VHL_BORING           0x45
 103 #endif
 104
 105 #define IP_MAXPACKET    65535           /* maximum packet size */
 106
 107 /*
 108  * Definitions for IP type of service (ip_tos)
 109  */
 110 #define IPTOS_LOWDELAY          0x10
 111 #define IPTOS_THROUGHPUT        0x08
 112 #define IPTOS_RELIABILITY       0x04
 113 #define IPTOS_MINCOST           0x02
 114
 115 /*
 116  * Definitions for IP precedence (also in ip_tos) (hopefully unused)
 117  */
 118 #define IPTOS_PREC_NETCONTROL           0xe0
 119 #define IPTOS_PREC_INTERNETCONTROL      0xc0
 120 #define IPTOS_PREC_CRITIC_ECP           0xa0
 121 #define IPTOS_PREC_FLASHOVERRIDE        0x80
 122 #define IPTOS_PREC_FLASH                0x60
 123 #define IPTOS_PREC_IMMEDIATE            0x40
 124 #define IPTOS_PREC_PRIORITY             0x20
 125 #define IPTOS_PREC_ROUTINE              0x00
 126
 127 /*
 128  * Definitions for options.
 129  */
 130 #define IPOPT_COPIED(o)         ((o)&0x80)
 131 #define IPOPT_CLASS(o)          ((o)&0x60)
 132 #define IPOPT_NUMBER(o)         ((o)&0x1f)
 133
 134 #define IPOPT_CONTROL           0x00
 135 #define IPOPT_RESERVED1         0x20
 136 #define IPOPT_DEBMEAS           0x40
 137 #define IPOPT_RESERVED2         0x60
 138
 139 #define IPOPT_EOL               0               /* end of option list */
 140 #define IPOPT_NOP               1               /* no operation */
 141
 142 #define IPOPT_RR                7               /* record packet route */
 143 #define IPOPT_TS                68              /* timestamp */
 144 #define IPOPT_SECURITY          130             /* provide s,c,h,tcc */
 145 #define IPOPT_LSRR              131             /* loose source route */
 146 #define IPOPT_SATID             136             /* satnet id */
 147 #define IPOPT_SSRR              137             /* strict source route */
 148 #define IPOPT_RA                148             /* router alert */
 149
 150 /*
 151  * Offsets to fields in options other than EOL and NOP.
 152  */
 153 #define IPOPT_OPTVAL            0               /* option ID */
 154 #define IPOPT_OLEN              1               /* option length */
 155 #define IPOPT_OFFSET            2               /* offset within option */
 156 #define IPOPT_MINOFF            4               /* min value of above */
 157
 158 /*
 159  * Time stamp option structure.
 160  */
 161 struct  ip_timestamp {
 162         u_char  ipt_code;               /* IPOPT_TS */
 163         u_char  ipt_len;                /* size of structure (variable) */
 164         u_char  ipt_ptr;                /* index of current entry */
 165 #ifdef __REACTOS__
 166 #if BYTE_ORDER == LITTLE_ENDIAN
 167         u_char  ipt_flg:4,              /* flags, see below */
 168                 ipt_oflw:4;             /* overflow counter */
 169 #endif
 170 #if BYTE_ORDER == BIG_ENDIAN
 171         u_char  ipt_oflw:4,             /* overflow counter */
 172                 ipt_flg:4;              /* flags, see below */
 173 #endif
 174 #else
 175 #if BYTE_ORDER == LITTLE_ENDIAN
 176         u_int   ipt_flg:4,              /* flags, see below */
 177                 ipt_oflw:4;             /* overflow counter */
 178 #endif
 179 #if BYTE_ORDER == BIG_ENDIAN
 180         u_int   ipt_oflw:4,             /* overflow counter */
 181                 ipt_flg:4;              /* flags, see below */
 182 #endif
 183 #endif  /* __REACTOS__ */
 184         union ipt_timestamp {
 185                 n_long  ipt_time[1];
 186                 struct  ipt_ta {
 187                         struct in_addr ipt_addr;
 188                         n_long ipt_time;
 189                 } ipt_ta[1];
 190         } ipt_timestamp;
 191 };
 192
 193 /* flag bits for ipt_flg */
 194 #define IPOPT_TS_TSONLY         0               /* timestamps only */
 195 #define IPOPT_TS_TSANDADDR      1               /* timestamps and addresses */
 196 #define IPOPT_TS_PRESPEC        3               /* specified modules only */
 197
 198 /* bits for security (not byte swapped) */
 199 #define IPOPT_SECUR_UNCLASS     0x0000
 200 #define IPOPT_SECUR_CONFID      0xf135
 201 #define IPOPT_SECUR_EFTO        0x789a
 202 #define IPOPT_SECUR_MMMM        0xbc4d
 203 #define IPOPT_SECUR_RESTR       0xaf13
 204 #define IPOPT_SECUR_SECRET      0xd788
 205 #define IPOPT_SECUR_TOPSECRET   0x6bc5
 206
 207 /*
 208  * Internet implementation parameters.
 209  */
 210 #define MAXTTL          255             /* maximum time to live (seconds) */
 211 #define IPDEFTTL        64              /* default ttl, from RFC 1340 */
 212 #define IPFRAGTTL       60              /* time to live for frags, slowhz */
 213 #define IPTTLDEC        1               /* subtracted when forwarding */
 214
 215 #define IP_MSS          576             /* default maximum segment size */
 216
 217 #endif