tools/tools/ifinfo/ifinfo.c

   1 /*
   2  * Copyright 1996 Massachusetts Institute of Technology
   3  *
   4  * Permission to use, copy, modify, and distribute this software and
   5  * its documentation for any purpose and without fee is hereby
   6  * granted, provided that both the above copyright notice and this
   7  * permission notice appear in all copies, that both the above
   8  * copyright notice and this permission notice appear in all
   9  * supporting documentation, and that the name of M.I.T. not be used
  10  * in advertising or publicity pertaining to distribution of the
  11  * software without specific, written prior permission.  M.I.T. makes
  12  * no representations about the suitability of this software for any
  13  * purpose.  It is provided "as is" without express or implied
  14  * warranty.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
  17  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
  18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
  20  * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  23  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  25  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  26  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  * $FreeBSD$
  30  */
  31 #include <sys/types.h>
  32 #include <sys/socket.h>         /* for PF_LINK */
  33 #include <sys/sysctl.h>
  34 #include <sys/time.h>
  35
  36 #include <err.h>
  37 #include <errno.h>
  38 #include <stdio.h>
  39 #include <stdlib.h>
  40 #include <string.h>
  41 #include <sysexits.h>
  42 #include <unistd.h>
  43
  44 #include <net/if.h>
  45 #include <net/if_types.h>
  46 #include <net/if_mib.h>
  47
  48 #include "ifinfo.h"
  49
  50 static void printit(const struct ifmibdata *, const char *);
  51 static const char *iftype(int);
  52 static const char *ifphys(int, int);
  53 static int isit(int, char **, const char *);
  54 static printfcn findlink(int);
  55
  56 static void
  57 usage(const char *argv0)
  58 {
  59         fprintf(stderr, "%s: usage:\n\t%s [-l]\n", argv0, argv0);
  60         exit(EX_USAGE);
  61 }
  62
  63 int
  64 main(int argc, char **argv)
  65 {
  66         int i, maxifno, retval;
  67         struct ifmibdata ifmd;
  68         int name[6];
  69         size_t len;
  70         int c;
  71         int dolink = 0;
  72         void *linkmib;
  73         size_t linkmiblen;
  74         printfcn pf;
  75         char *dname;
  76
  77         while ((c = getopt(argc, argv, "l")) != -1) {
  78                 switch(c) {
  79                 case 'l':
  80                         dolink = 1;
  81                         break;
  82                 default:
  83                         usage(argv[0]);
  84                 }
  85         }
  86
  87         retval = 1;
  88
  89         name[0] = CTL_NET;
  90         name[1] = PF_LINK;
  91         name[2] = NETLINK_GENERIC;
  92         name[3] = IFMIB_SYSTEM;
  93         name[4] = IFMIB_IFCOUNT;
  94
  95         len = sizeof maxifno;
  96         if (sysctl(name, 5, &maxifno, &len, 0, 0) < 0)
  97                 err(EX_OSERR, "sysctl(net.link.generic.system.ifcount)");
  98
  99         for (i = 1; i <= maxifno; i++) {
 100                 len = sizeof ifmd;
 101                 name[3] = IFMIB_IFDATA;
 102                 name[4] = i;
 103                 name[5] = IFDATA_GENERAL;
 104                 if (sysctl(name, 6, &ifmd, &len, 0, 0) < 0) {
 105                         if (errno == ENOENT)
 106                                 continue;
 107
 108                         err(EX_OSERR, "sysctl(net.link.ifdata.%d.general)",
 109                             i);
 110                 }
 111
 112                 if (!isit(argc - optind, argv + optind, ifmd.ifmd_name))
 113                         continue;
 114
 115                 dname = NULL;
 116                 len = 0;
 117                 name[5] = IFDATA_DRIVERNAME;
 118                 if (sysctl(name, 6, NULL, &len, 0, 0) < 0) {
 119                         warn("sysctl(net.link.ifdata.%d.drivername)", i);
 120                 } else {
 121                         if ((dname = malloc(len)) == NULL)
 122                                 err(EX_OSERR, NULL);
 123                         if (sysctl(name, 6, dname, &len, 0, 0) < 0) {
 124                                 warn("sysctl(net.link.ifdata.%d.drivername)",
 125                                     i);
 126                                 free(dname);
 127                                 dname = NULL;
 128                         }
 129                 }
 130                 printit(&ifmd, dname);
 131                 free(dname);
 132                 if (dolink && (pf = findlink(ifmd.ifmd_data.ifi_type))) {
 133                         name[5] = IFDATA_LINKSPECIFIC;
 134                         if (sysctl(name, 6, 0, &linkmiblen, 0, 0) < 0)
 135                                 err(EX_OSERR,
 136                                     "sysctl(net.link.ifdata.%d.linkspec) size",
 137                                     i);
 138                         linkmib = malloc(linkmiblen);
 139                         if (!linkmib)
 140                                 err(EX_OSERR, "malloc(%lu)",
 141                                     (u_long)linkmiblen);
 142                         if (sysctl(name, 6, linkmib, &linkmiblen, 0, 0) < 0)
 143                                 err(EX_OSERR,
 144                                     "sysctl(net.link.ifdata.%d.linkspec)",
 145                                     i);
 146                         pf(linkmib, linkmiblen);
 147                         free(linkmib);
 148                 }
 149                 retval = 0;
 150         }
 151
 152         return retval;
 153 }
 154
 155 static void
 156 printit(const struct ifmibdata *ifmd, const char *dname)
 157 {
 158         printf("Interface %.*s", IFNAMSIZ, ifmd->ifmd_name);
 159         if (dname != NULL)
 160                 printf(" (%s)", dname);
 161         printf(":\n");
 162         printf("\tflags: %x\n", ifmd->ifmd_flags);
 163         printf("\tpromiscuous listeners: %d\n", ifmd->ifmd_pcount);
 164         printf("\tsend queue length: %d\n", ifmd->ifmd_snd_len);
 165         printf("\tsend queue max length: %d\n", ifmd->ifmd_snd_maxlen);
 166         printf("\tsend queue drops: %d\n", ifmd->ifmd_snd_drops);
 167         printf("\ttype: %s\n", iftype(ifmd->ifmd_data.ifi_type));
 168         printf("\tphysical: %s\n", ifphys(ifmd->ifmd_data.ifi_type,
 169                                           ifmd->ifmd_data.ifi_physical));
 170         printf("\taddress length: %d\n", ifmd->ifmd_data.ifi_addrlen);
 171         printf("\theader length: %d\n", ifmd->ifmd_data.ifi_hdrlen);
 172         printf("\treceive spare char1: %u\n", ifmd->ifmd_data.ifi_spare_char1);
 173         printf("\ttransmit spare char2: %u\n", ifmd->ifmd_data.ifi_spare_char2);
 174         printf("\tmtu: %lu\n", ifmd->ifmd_data.ifi_mtu);
 175         printf("\tmetric: %lu\n", ifmd->ifmd_data.ifi_metric);
 176         printf("\tline rate: %lu bit/s\n", ifmd->ifmd_data.ifi_baudrate);
 177         printf("\tpackets received: %lu\n", ifmd->ifmd_data.ifi_ipackets);
 178         printf("\tinput errors: %lu\n", ifmd->ifmd_data.ifi_ierrors);
 179         printf("\tpackets transmitted: %lu\n", ifmd->ifmd_data.ifi_opackets);
 180         printf("\toutput errors: %lu\n", ifmd->ifmd_data.ifi_oerrors);
 181         printf("\tcollisions: %lu\n", ifmd->ifmd_data.ifi_collisions);
 182         printf("\tbytes received: %lu\n", ifmd->ifmd_data.ifi_ibytes);
 183         printf("\tbytes transmitted: %lu\n", ifmd->ifmd_data.ifi_obytes);
 184         printf("\tmulticasts received: %lu\n", ifmd->ifmd_data.ifi_imcasts);
 185         printf("\tmulticasts transmitted: %lu\n", ifmd->ifmd_data.ifi_omcasts);
 186         printf("\tinput queue drops: %lu\n", ifmd->ifmd_data.ifi_iqdrops);
 187         printf("\tpackets for unknown protocol: %lu\n",
 188                ifmd->ifmd_data.ifi_noproto);
 189 #ifdef notdef
 190         printf("\treceive timing: %lu usec\n", ifmd->ifmd_data.ifi_recvtiming);
 191         printf("\ttransmit timing: %lu usec\n",
 192                ifmd->ifmd_data.ifi_xmittiming);
 193 #endif
 194 }
 195
 196 static const char *const if_types[] = {
 197         "reserved",
 198         "other",
 199         "BBN 1822",
 200         "HDH 1822",
 201         "X.25 DDN",
 202         "X.25",
 203         "Ethernet",
 204         "ISO 8802-3 CSMA/CD",
 205         "ISO 8802-4 Token Bus",
 206         "ISO 8802-5 Token Ring",
 207         "ISO 8802-6 DQDB MAN",
 208         "StarLAN",
 209         "Proteon proNET-10",
 210         "Proteon proNET-80",
 211         "HyperChannel",
 212         "FDDI",
 213         "LAP-B",
 214         "SDLC",
 215         "T-1",
 216         "CEPT",
 217         "Basic rate ISDN",
 218         "Primary rate ISDN",
 219         "Proprietary P2P",
 220         "PPP",
 221         "Loopback",
 222         "ISO CLNP over IP",
 223         "Experimental Ethernet",
 224         "XNS over IP",
 225         "SLIP",
 226         "Ultra Technologies",
 227         "DS-3",
 228         "SMDS",
 229         "Frame Relay",
 230         "RS-232 serial",
 231         "Parallel printer port",
 232         "ARCNET",
 233         "ARCNET+",
 234         "ATM",
 235         "MIOX25",
 236         "SONET/SDH",
 237         "X25PLE",
 238         "ISO 8802-2 LLC",
 239         "LocalTalk",
 240         "SMDSDXI",
 241         "Frame Relay DCE",
 242         "V.35",
 243         "HSSI",
 244         "HIPPI",
 245         "Generic Modem",
 246         "ATM AAL5",
 247         "SONETPATH",
 248         "SONETVT",
 249         "SMDS InterCarrier Interface",
 250         "Proprietary virtual interface",
 251         "Proprietary multiplexing",
 252         "Generic tunnel interface",
 253         "IPv6-to-IPv4 TCP relay capturing interface",
 254         "6to4 tunnel interface"
 255 };
 256 #define NIFTYPES ((sizeof if_types)/(sizeof if_types[0]))
 257
 258 static const char *
 259 iftype(int type)
 260 {
 261         static char buf[256];
 262
 263         if (type <= 0 || type >= NIFTYPES) {
 264                 sprintf(buf, "unknown type %d", type);
 265                 return buf;
 266         }
 267
 268         return if_types[type];
 269 }
 270
 271 static const char *
 272 ifphys(int type, int phys)
 273 {
 274         static char buf[256];
 275
 276         sprintf(buf, "unknown physical %d", phys);
 277         return buf;
 278 }
 279
 280 static int
 281 isit(int argc, char **argv, const char *name)
 282 {
 283         if (argc == 0)
 284                 return 1;
 285         for (argc = 0; argv[argc]; argc++) {
 286                 if (strncmp(argv[argc], name, IFNAMSIZ) == 0)
 287                         return 1;
 288         }
 289         return 0;
 290 }
 291
 292 static printfcn
 293 findlink(int type)
 294 {
 295         switch(type) {
 296         case IFT_ETHER:
 297         case IFT_ISO88023:
 298         case IFT_STARLAN:
 299                 return print_1650;
 300         }
 301
 302         return 0;
 303 }