lib/hw.c

   1 /*
   2  * lib/hw.c   This file contains the top-level part of the hardware
   3  *              support functions module.
   4  *
   5  * Version:     $Id: hw.c,v 1.17 2000/05/20 13:38:10 pb Exp $
   6  *
   7  * Maintainer:  Bernd 'eckes' Eckenfels, <net-tools@lina.inka.de>
   8  *
   9  * Author:      Fred N. van Kempen, <waltje@uwalt.nl.mugnet.org>
  10  *              Copyright 1993 MicroWalt Corporation
  11  *
  12  *980701 {1.21}  Arnaldo C. Melo       GNU gettext instead of catgets
  13  *
  14  *              This program is free software; you can redistribute it
  15  *              and/or  modify it under  the terms of  the GNU General
  16  *              Public  License as  published  by  the  Free  Software
  17  *              Foundation;  either  version 2 of the License, or  (at
  18  *              your option) any later version.
  19  */
  20 #include <sys/types.h>
  21 #include <sys/socket.h>
  22 #include <net/if_arp.h>
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25 #include <errno.h>
  26 #include <ctype.h>
  27 #include <string.h>
  28 #include <unistd.h>
  29 #include "config.h"
  30 #include "net-support.h"
  31 #include "pathnames.h"
  32 #include "intl.h"
  33
  34 extern struct hwtype unspec_hwtype;
  35 extern struct hwtype loop_hwtype;
  36
  37 extern struct hwtype slip_hwtype;
  38 extern struct hwtype cslip_hwtype;
  39 extern struct hwtype slip6_hwtype;
  40 extern struct hwtype cslip6_hwtype;
  41 extern struct hwtype adaptive_hwtype;
  42 extern struct hwtype strip_hwtype;
  43
  44 extern struct hwtype ether_hwtype;
  45 extern struct hwtype fddi_hwtype;
  46 extern struct hwtype hippi_hwtype;
  47 extern struct hwtype tr_hwtype;
  48 #ifdef ARPHRD_IEEE802_TR
  49 extern struct hwtype tr_hwtype1;
  50 #endif
  51
  52 extern struct hwtype ax25_hwtype;
  53 extern struct hwtype rose_hwtype;
  54 extern struct hwtype netrom_hwtype;
  55 extern struct hwtype x25_hwtype;
  56 extern struct hwtype tunnel_hwtype;
  57
  58 extern struct hwtype ash_hwtype;
  59
  60 extern struct hwtype ppp_hwtype;
  61
  62 extern struct hwtype arcnet_hwtype;
  63
  64 extern struct hwtype dlci_hwtype;
  65 extern struct hwtype frad_hwtype;
  66
  67 extern struct hwtype hdlc_hwtype;
  68 extern struct hwtype lapb_hwtype;
  69
  70 extern struct hwtype sit_hwtype;
  71
  72 extern struct hwtype irda_hwtype;
  73
  74 extern struct hwtype ec_hwtype;
  75
  76 static struct hwtype *hwtypes[] =
  77 {
  78
  79     &loop_hwtype,
  80
  81 #if HAVE_HWSLIP
  82     &slip_hwtype,
  83     &cslip_hwtype,
  84     &slip6_hwtype,
  85     &cslip6_hwtype,
  86     &adaptive_hwtype,
  87 #endif
  88 #if HAVE_HWSTRIP
  89     &strip_hwtype,
  90 #endif
  91 #if HAVE_HWASH
  92     &ash_hwtype,
  93 #endif
  94 #if HAVE_HWETHER
  95     &ether_hwtype,
  96 #endif
  97 #if HAVE_HWTR
  98     &tr_hwtype,
  99 #ifdef ARPHRD_IEEE802_TR
 100     &tr_hwtype1,
 101 #endif
 102 #endif
 103 #if HAVE_HWAX25
 104     &ax25_hwtype,
 105 #endif
 106 #if HAVE_HWNETROM
 107     &netrom_hwtype,
 108 #endif
 109 #if HAVE_HWROSE
 110     &rose_hwtype,
 111 #endif
 112 #if HAVE_HWTUNNEL
 113     &tunnel_hwtype,
 114 #endif
 115 #if HAVE_HWPPP
 116     &ppp_hwtype,
 117 #endif
 118 #if HAVE_HWHDLCLAPB
 119     &hdlc_hwtype,
 120     &lapb_hwtype,
 121 #endif
 122 #if HAVE_HWARC
 123     &arcnet_hwtype,
 124 #endif
 125 #if HAVE_HWFR
 126     &dlci_hwtype,
 127     &frad_hwtype,
 128 #endif
 129 #if HAVE_HWSIT
 130     &sit_hwtype,
 131 #endif
 132 #if HAVE_HWFDDI
 133     &fddi_hwtype,
 134 #endif
 135 #if HAVE_HWHIPPI
 136     &hippi_hwtype,
 137 #endif
 138 #if HAVE_HWIRDA
 139     &irda_hwtype,
 140 #endif
 141 #if HAVE_HWEC
 142     &ec_hwtype,
 143 #endif
 144 #if HAVE_HWX25
 145     &x25_hwtype,
 146 #endif
 147     &unspec_hwtype,
 148     NULL
 149 };
 150
 151 static short sVhwinit = 0;
 152
 153 void hwinit()
 154 {
 155     loop_hwtype.title = _("Local Loopback");
 156     unspec_hwtype.title = _("UNSPEC");
 157 #if HAVE_HWSLIP
 158     slip_hwtype.title = _("Serial Line IP");
 159     cslip_hwtype.title = _("VJ Serial Line IP");
 160     slip6_hwtype.title = _("6-bit Serial Line IP");
 161     cslip6_hwtype.title = _("VJ 6-bit Serial Line IP");
 162     adaptive_hwtype.title = _("Adaptive Serial Line IP");
 163 #endif
 164 #if HAVE_HWETHER
 165     ether_hwtype.title = _("Ethernet");
 166 #endif
 167 #if HAVE_HWASH
 168     ash_hwtype.title = _("Ash");
 169 #endif
 170 #if HAVE_HWFDDI
 171     fddi_hwtype.title = _("Fiber Distributed Data Interface");
 172 #endif
 173 #if HAVE_HWHIPPI
 174     hippi_hwtype.title = _("HIPPI");
 175 #endif
 176 #if HAVE_HWAX25
 177     ax25_hwtype.title = _("AMPR AX.25");
 178 #endif
 179 #if HAVE_HWROSE
 180     rose_hwtype.title = _("AMPR ROSE");
 181 #endif
 182 #if HAVE_HWNETROM
 183     netrom_hwtype.title = _("AMPR NET/ROM");
 184 #endif
 185 #if HAVE_HWX25
 186     x25_hwtype.title = _("generic X.25");
 187 #endif
 188 #if HAVE_HWTUNNEL
 189     tunnel_hwtype.title = _("IPIP Tunnel");
 190 #endif
 191 #if HAVE_HWPPP
 192     ppp_hwtype.title = _("Point-to-Point Protocol");
 193 #endif
 194 #if HAVE_HWHDLCLAPB
 195     hdlc_hwtype.title = _("(Cisco)-HDLC");
 196     lapb_hwtype.title = _("LAPB");
 197 #endif
 198 #if HAVE_HWARC
 199     arcnet_hwtype.title = _("ARCnet");
 200 #endif
 201 #if HAVE_HWFR
 202     dlci_hwtype.title = _("Frame Relay DLCI");
 203     frad_hwtype.title = _("Frame Relay Access Device");
 204 #endif
 205 #if HAVE_HWSIT
 206     sit_hwtype.title = _("IPv6-in-IPv4");
 207 #endif
 208 #if HAVE_HWIRDA
 209     irda_hwtype.title = _("IrLAP");
 210 #endif
 211 #if HAVE_HWTR
 212     tr_hwtype.title = _("16/4 Mbps Token Ring");
 213 #ifdef ARPHRD_IEEE802_TR
 214     tr_hwtype1.title = _("16/4 Mbps Token Ring (New)") ;
 215 #endif
 216 #endif
 217 #if HAVE_HWEC
 218     ec_hwtype.title = _("Econet");
 219 #endif
 220     sVhwinit = 1;
 221 }
 222
 223 /* Check our hardware type table for this type. */
 224 struct hwtype *get_hwtype(const char *name)
 225 {
 226     struct hwtype **hwp;
 227
 228     if (!sVhwinit)
 229         hwinit();
 230
 231     hwp = hwtypes;
 232     while (*hwp != NULL) {
 233         if (!strcmp((*hwp)->name, name))
 234             return (*hwp);
 235         hwp++;
 236     }
 237     return (NULL);
 238 }
 239
 240
 241 /* Check our hardware type table for this type. */
 242 struct hwtype *get_hwntype(int type)
 243 {
 244     struct hwtype **hwp;
 245
 246     if (!sVhwinit)
 247         hwinit();
 248
 249     hwp = hwtypes;
 250     while (*hwp != NULL) {
 251         if ((*hwp)->type == type)
 252             return (*hwp);
 253         hwp++;
 254     }
 255     return (NULL);
 256 }
 257
 258 /* type: 0=all, 1=ARPable */
 259 void print_hwlist(int type) {
 260     int count = 0;
 261     char * txt;
 262     struct hwtype **hwp;
 263
 264     if (!sVhwinit)
 265         hwinit();
 266
 267     hwp = hwtypes;
 268     while (*hwp != NULL) {
 269         if (((type == 1) && ((*hwp)->alen == 0)) || ((*hwp)->type == -1)) {
 270                 hwp++; continue;
 271         }
 272         if ((count % 3) == 0) fprintf(stderr,count?"\n    ":"    ");
 273         txt = (*hwp)->name; if (!txt) txt = "..";
 274         fprintf(stderr,"%s (%s) ",txt,(*hwp)->title);
 275         count++;
 276         hwp++;
 277     }
 278     fprintf(stderr,"\n");
 279 }
 280
 281 /* return 1 if address is all zeros */
 282 int hw_null_address(struct hwtype *hw, void *ap)
 283 {
 284     unsigned int i;
 285     unsigned char *address = (unsigned char *)ap;
 286     for (i = 0; i < hw->alen; i++)
 287         if (address[i])
 288             return 0;
 289     return 1;
 290 }