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 1.18 2001/11/12 02:12:05 ecki 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 extern struct hwtype eui64_hwtype;
  77
  78 static struct hwtype *hwtypes[] =
  79 {
  80
  81     &loop_hwtype,
  82
  83 #if HAVE_HWSLIP
  84     &slip_hwtype,
  85     &cslip_hwtype,
  86     &slip6_hwtype,
  87     &cslip6_hwtype,
  88     &adaptive_hwtype,
  89 #endif
  90 #if HAVE_HWSTRIP
  91     &strip_hwtype,
  92 #endif
  93 #if HAVE_HWASH
  94     &ash_hwtype,
  95 #endif
  96 #if HAVE_HWETHER
  97     &ether_hwtype,
  98 #endif
  99 #if HAVE_HWTR
 100     &tr_hwtype,
 101 #ifdef ARPHRD_IEEE802_TR
 102     &tr_hwtype1,
 103 #endif
 104 #endif
 105 #if HAVE_HWAX25
 106     &ax25_hwtype,
 107 #endif
 108 #if HAVE_HWNETROM
 109     &netrom_hwtype,
 110 #endif
 111 #if HAVE_HWROSE
 112     &rose_hwtype,
 113 #endif
 114 #if HAVE_HWTUNNEL
 115     &tunnel_hwtype,
 116 #endif
 117 #if HAVE_HWPPP
 118     &ppp_hwtype,
 119 #endif
 120 #if HAVE_HWHDLCLAPB
 121     &hdlc_hwtype,
 122     &lapb_hwtype,
 123 #endif
 124 #if HAVE_HWARC
 125     &arcnet_hwtype,
 126 #endif
 127 #if HAVE_HWFR
 128     &dlci_hwtype,
 129     &frad_hwtype,
 130 #endif
 131 #if HAVE_HWSIT
 132     &sit_hwtype,
 133 #endif
 134 #if HAVE_HWFDDI
 135     &fddi_hwtype,
 136 #endif
 137 #if HAVE_HWHIPPI
 138     &hippi_hwtype,
 139 #endif
 140 #if HAVE_HWIRDA
 141     &irda_hwtype,
 142 #endif
 143 #if HAVE_HWEC
 144     &ec_hwtype,
 145 #endif
 146 #if HAVE_HWX25
 147     &x25_hwtype,
 148 #endif
 149 #if HAVE_HWEUI64
 150     &eui64_hwtype,
 151 #endif
 152     &unspec_hwtype,
 153     NULL
 154 };
 155
 156 static short sVhwinit = 0;
 157
 158 void hwinit()
 159 {
 160     loop_hwtype.title = _("Local Loopback");
 161     unspec_hwtype.title = _("UNSPEC");
 162 #if HAVE_HWSLIP
 163     slip_hwtype.title = _("Serial Line IP");
 164     cslip_hwtype.title = _("VJ Serial Line IP");
 165     slip6_hwtype.title = _("6-bit Serial Line IP");
 166     cslip6_hwtype.title = _("VJ 6-bit Serial Line IP");
 167     adaptive_hwtype.title = _("Adaptive Serial Line IP");
 168 #endif
 169 #if HAVE_HWETHER
 170     ether_hwtype.title = _("Ethernet");
 171 #endif
 172 #if HAVE_HWASH
 173     ash_hwtype.title = _("Ash");
 174 #endif
 175 #if HAVE_HWFDDI
 176     fddi_hwtype.title = _("Fiber Distributed Data Interface");
 177 #endif
 178 #if HAVE_HWHIPPI
 179     hippi_hwtype.title = _("HIPPI");
 180 #endif
 181 #if HAVE_HWAX25
 182     ax25_hwtype.title = _("AMPR AX.25");
 183 #endif
 184 #if HAVE_HWROSE
 185     rose_hwtype.title = _("AMPR ROSE");
 186 #endif
 187 #if HAVE_HWNETROM
 188     netrom_hwtype.title = _("AMPR NET/ROM");
 189 #endif
 190 #if HAVE_HWX25
 191     x25_hwtype.title = _("generic X.25");
 192 #endif
 193 #if HAVE_HWTUNNEL
 194     tunnel_hwtype.title = _("IPIP Tunnel");
 195 #endif
 196 #if HAVE_HWPPP
 197     ppp_hwtype.title = _("Point-to-Point Protocol");
 198 #endif
 199 #if HAVE_HWHDLCLAPB
 200     hdlc_hwtype.title = _("(Cisco)-HDLC");
 201     lapb_hwtype.title = _("LAPB");
 202 #endif
 203 #if HAVE_HWARC
 204     arcnet_hwtype.title = _("ARCnet");
 205 #endif
 206 #if HAVE_HWFR
 207     dlci_hwtype.title = _("Frame Relay DLCI");
 208     frad_hwtype.title = _("Frame Relay Access Device");
 209 #endif
 210 #if HAVE_HWSIT
 211     sit_hwtype.title = _("IPv6-in-IPv4");
 212 #endif
 213 #if HAVE_HWIRDA
 214     irda_hwtype.title = _("IrLAP");
 215 #endif
 216 #if HAVE_HWTR
 217     tr_hwtype.title = _("16/4 Mbps Token Ring");
 218 #ifdef ARPHRD_IEEE802_TR
 219     tr_hwtype1.title = _("16/4 Mbps Token Ring (New)") ;
 220 #endif
 221 #endif
 222 #if HAVE_HWEC
 223     ec_hwtype.title = _("Econet");
 224 #endif
 225 #if HAVE_HWEUI64
 226     eui64_hwtype.title = _("Generic EUI-64");
 227 #endif
 228     sVhwinit = 1;
 229 }
 230
 231 /* Check our hardware type table for this type. */
 232 struct hwtype *get_hwtype(const char *name)
 233 {
 234     struct hwtype **hwp;
 235
 236     if (!sVhwinit)
 237         hwinit();
 238
 239     hwp = hwtypes;
 240     while (*hwp != NULL) {
 241         if (!strcmp((*hwp)->name, name))
 242             return (*hwp);
 243         hwp++;
 244     }
 245     return (NULL);
 246 }
 247
 248
 249 /* Check our hardware type table for this type. */
 250 struct hwtype *get_hwntype(int type)
 251 {
 252     struct hwtype **hwp;
 253
 254     if (!sVhwinit)
 255         hwinit();
 256
 257     hwp = hwtypes;
 258     while (*hwp != NULL) {
 259         if ((*hwp)->type == type)
 260             return (*hwp);
 261         hwp++;
 262     }
 263     return (NULL);
 264 }
 265
 266 /* type: 0=all, 1=ARPable */
 267 void print_hwlist(int type) {
 268     int count = 0;
 269     char * txt;
 270     struct hwtype **hwp;
 271
 272     if (!sVhwinit)
 273         hwinit();
 274
 275     hwp = hwtypes;
 276     while (*hwp != NULL) {
 277         if (((type == 1) && ((*hwp)->alen == 0)) || ((*hwp)->type == -1)) {
 278                 hwp++; continue;
 279         }
 280         if ((count % 3) == 0) fprintf(stderr,count?"\n    ":"    ");
 281         txt = (*hwp)->name; if (!txt) txt = "..";
 282         fprintf(stderr,"%s (%s) ",txt,(*hwp)->title);
 283         count++;
 284         hwp++;
 285     }
 286     fprintf(stderr,"\n");
 287 }
 288
 289 /* return 1 if address is all zeros */
 290 int hw_null_address(struct hwtype *hw, void *ap)
 291 {
 292     unsigned int i;
 293     unsigned char *address = (unsigned char *)ap;
 294     for (i = 0; i < hw->alen; i++)
 295         if (address[i])
 296             return 0;
 297     return 1;
 298 }