lib/interface.c

   1 /* Code to manipulate interface information, shared between ifconfig and
   2    netstat.
   3
   4    10/1998 partly rewriten by Andi Kleen to support an interface list.
   5    I don't claim that the list operations are efficient @).
   6
   7    8/2000  Andi Kleen make the list operations a bit more efficient.
   8    People are crazy enough to use thousands of aliases now.
   9
  10    $Id: interface.c,v 1.14 2001/02/10 19:31:15 pb Exp $
  11  */
  12
  13 #include "config.h"
  14
  15 #include <sys/types.h>
  16 #include <sys/socket.h>
  17 #include <sys/ioctl.h>
  18 #include <netinet/in.h>
  19 #include <net/if.h>
  20 #include <stdio.h>
  21 #include <errno.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <unistd.h>
  25 #include <ctype.h>
  26
  27 #if HAVE_AFIPX
  28 #if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1)
  29 #include <netipx/ipx.h>
  30 #else
  31 #include "ipx.h"
  32 #endif
  33 #endif
  34
  35 #if HAVE_AFECONET
  36 #include <neteconet/ec.h>
  37 #endif
  38
  39 #ifdef HAVE_HWSLIP
  40 #include <linux/if_slip.h>
  41 #include <net/if_arp.h>
  42 #endif
  43
  44 #include "net-support.h"
  45 #include "pathnames.h"
  46 #include "version.h"
  47 #include "proc.h"
  48
  49 #include "interface.h"
  50 #include "sockets.h"
  51 #include "util.h"
  52 #include "intl.h"
  53
  54 #ifdef IFF_PORTSEL
  55 const char *if_port_text[][4] =
  56 {
  57   /* Keep in step with <linux/netdevice.h> */
  58     {"unknown", NULL, NULL, NULL},
  59     {"10base2", "bnc", "coax", NULL},
  60     {"10baseT", "utp", "tpe", NULL},
  61     {"AUI", "thick", "db15", NULL},
  62     {"100baseT", NULL, NULL, NULL},
  63     {"100baseTX", NULL, NULL, NULL},
  64     {"100baseFX", NULL, NULL, NULL},
  65     {NULL, NULL, NULL, NULL},
  66 };
  67 #endif
  68
  69 #define IPV6_ADDR_ANY           0x0000U
  70
  71 #define IPV6_ADDR_UNICAST       0x0001U
  72 #define IPV6_ADDR_MULTICAST     0x0002U
  73 #define IPV6_ADDR_ANYCAST       0x0004U
  74
  75 #define IPV6_ADDR_LOOPBACK      0x0010U
  76 #define IPV6_ADDR_LINKLOCAL     0x0020U
  77 #define IPV6_ADDR_SITELOCAL     0x0040U
  78
  79 #define IPV6_ADDR_COMPATv4      0x0080U
  80
  81 #define IPV6_ADDR_SCOPE_MASK    0x00f0U
  82
  83 #define IPV6_ADDR_MAPPED        0x1000U
  84 #define IPV6_ADDR_RESERVED      0x2000U         /* reserved address space */
  85
  86 int procnetdev_vsn = 1;
  87
  88 int ife_short;
  89
  90 static struct interface *int_list, *int_last;
  91
  92 static int if_readlist_proc(char *);
  93
  94 static struct interface *add_interface(char *name)
  95 {
  96     struct interface *ife, **nextp, *new;
  97
  98     for (ife = int_last; ife; ife = ife->prev) {
  99             int n = nstrcmp(ife->name, name);
 100             if (n == 0)
 101                     return ife;
 102             if (n < 0)
 103                     break;
 104     }
 105     new(new);
 106     safe_strncpy(new->name, name, IFNAMSIZ);
 107     nextp = ife ? &ife->next : &int_list;
 108     new->prev = ife;
 109     new->next = *nextp;
 110     if (new->next)
 111             new->next->prev = new;
 112     else
 113             int_last = new;
 114     *nextp = new;
 115     return new;
 116 }
 117
 118 struct interface *lookup_interface(char *name)
 119 {
 120     struct interface *ife = NULL;
 121
 122     if (if_readlist_proc(name) < 0)
 123             return NULL;
 124     ife = add_interface(name);
 125     return ife;
 126 }
 127
 128 int for_all_interfaces(int (*doit) (struct interface *, void *), void *cookie)
 129 {
 130     struct interface *ife;
 131
 132     if (!int_list && (if_readlist() < 0))
 133         return -1;
 134     for (ife = int_list; ife; ife = ife->next) {
 135         int err = doit(ife, cookie);
 136         if (err)
 137             return err;
 138     }
 139     return 0;
 140 }
 141
 142 int free_interface_list(void)
 143 {
 144     struct interface *ife;
 145     while ((ife = int_list) != NULL) {
 146         int_list = ife->next;
 147         free(ife);
 148     }
 149     return 0;
 150 }
 151
 152 static int if_readconf(void)
 153 {
 154     int numreqs = 30;
 155     struct ifconf ifc;
 156     struct ifreq *ifr;
 157     int n, err = -1;
 158     int skfd;
 159
 160     /* SIOCGIFCONF currently seems to only work properly on AF_INET sockets
 161        (as of 2.1.128) */
 162     skfd = get_socket_for_af(AF_INET);
 163     if (skfd < 0) {
 164         fprintf(stderr, _("warning: no inet socket available: %s\n"),
 165                 strerror(errno));
 166         /* Try to soldier on with whatever socket we can get hold of.  */
 167         skfd = sockets_open(0);
 168         if (skfd < 0)
 169             return -1;
 170     }
 171
 172     ifc.ifc_buf = NULL;
 173     for (;;) {
 174         ifc.ifc_len = sizeof(struct ifreq) * numreqs;
 175         ifc.ifc_buf = xrealloc(ifc.ifc_buf, ifc.ifc_len);
 176
 177         if (ioctl(skfd, SIOCGIFCONF, &ifc) < 0) {
 178             perror("SIOCGIFCONF");
 179             goto out;
 180         }
 181         if (ifc.ifc_len == sizeof(struct ifreq) * numreqs) {
 182             /* assume it overflowed and try again */
 183             numreqs += 10;
 184             continue;
 185         }
 186         break;
 187     }
 188
 189     ifr = ifc.ifc_req;
 190     for (n = 0; n < ifc.ifc_len; n += sizeof(struct ifreq)) {
 191         add_interface(ifr->ifr_name);
 192         ifr++;
 193     }
 194     err = 0;
 195
 196 out:
 197     free(ifc.ifc_buf);
 198     return err;
 199 }
 200
 201 static char *get_name(char *name, char *p)
 202 {
 203     while (isspace(*p))
 204         p++;
 205     while (*p) {
 206         if (isspace(*p))
 207             break;
 208         if (*p == ':') {        /* could be an alias */
 209             char *dot = p, *dotname = name;
 210             *name++ = *p++;
 211             while (isdigit(*p))
 212                 *name++ = *p++;
 213             if (*p != ':') {    /* it wasn't, backup */
 214                 p = dot;
 215                 name = dotname;
 216             }
 217             if (*p == '\0')
 218                 return NULL;
 219             p++;
 220             break;
 221         }
 222         *name++ = *p++;
 223     }
 224     *name++ = '\0';
 225     return p;
 226 }
 227
 228 static int procnetdev_version(char *buf)
 229 {
 230     if (strstr(buf, "compressed"))
 231         return 3;
 232     if (strstr(buf, "bytes"))
 233         return 2;
 234     return 1;
 235 }
 236
 237 static int get_dev_fields(char *bp, struct interface *ife)
 238 {
 239     switch (procnetdev_vsn) {
 240     case 3:
 241         sscanf(bp,
 242         "%llu %llu %lu %lu %lu %lu %lu %lu %llu %llu %lu %lu %lu %lu %lu %lu",
 243                &ife->stats.rx_bytes,
 244                &ife->stats.rx_packets,
 245                &ife->stats.rx_errors,
 246                &ife->stats.rx_dropped,
 247                &ife->stats.rx_fifo_errors,
 248                &ife->stats.rx_frame_errors,
 249                &ife->stats.rx_compressed,
 250                &ife->stats.rx_multicast,
 251
 252                &ife->stats.tx_bytes,
 253                &ife->stats.tx_packets,
 254                &ife->stats.tx_errors,
 255                &ife->stats.tx_dropped,
 256                &ife->stats.tx_fifo_errors,
 257                &ife->stats.collisions,
 258                &ife->stats.tx_carrier_errors,
 259                &ife->stats.tx_compressed);
 260         break;
 261     case 2:
 262         sscanf(bp, "%llu %llu %lu %lu %lu %lu %llu %llu %lu %lu %lu %lu %lu",
 263                &ife->stats.rx_bytes,
 264                &ife->stats.rx_packets,
 265                &ife->stats.rx_errors,
 266                &ife->stats.rx_dropped,
 267                &ife->stats.rx_fifo_errors,
 268                &ife->stats.rx_frame_errors,
 269
 270                &ife->stats.tx_bytes,
 271                &ife->stats.tx_packets,
 272                &ife->stats.tx_errors,
 273                &ife->stats.tx_dropped,
 274                &ife->stats.tx_fifo_errors,
 275                &ife->stats.collisions,
 276                &ife->stats.tx_carrier_errors);
 277         ife->stats.rx_multicast = 0;
 278         break;
 279     case 1:
 280         sscanf(bp, "%llu %lu %lu %lu %lu %llu %lu %lu %lu %lu %lu",
 281                &ife->stats.rx_packets,
 282                &ife->stats.rx_errors,
 283                &ife->stats.rx_dropped,
 284                &ife->stats.rx_fifo_errors,
 285                &ife->stats.rx_frame_errors,
 286
 287                &ife->stats.tx_packets,
 288                &ife->stats.tx_errors,
 289                &ife->stats.tx_dropped,
 290                &ife->stats.tx_fifo_errors,
 291                &ife->stats.collisions,
 292                &ife->stats.tx_carrier_errors);
 293         ife->stats.rx_bytes = 0;
 294         ife->stats.tx_bytes = 0;
 295         ife->stats.rx_multicast = 0;
 296         break;
 297     }
 298     return 0;
 299 }
 300
 301 static int if_readlist_proc(char *target)
 302 {
 303     static int proc_read;
 304     FILE *fh;
 305     char buf[512];
 306     struct interface *ife;
 307     int err;
 308
 309     if (proc_read)
 310             return 0;
 311     if (!target)
 312             proc_read = 1;
 313
 314     fh = fopen(_PATH_PROCNET_DEV, "r");
 315     if (!fh) {
 316                 fprintf(stderr, _("Warning: cannot open %s (%s). Limited output.\n"),
 317                         _PATH_PROCNET_DEV, strerror(errno));
 318                 return if_readconf();
 319         }
 320     fgets(buf, sizeof buf, fh); /* eat line */
 321     fgets(buf, sizeof buf, fh);
 322
 323 #if 0                           /* pretty, but can't cope with missing fields */
 324     fmt = proc_gen_fmt(_PATH_PROCNET_DEV, 1, fh,
 325                        "face", "",      /* parsed separately */
 326                        "bytes", "%lu",
 327                        "packets", "%lu",
 328                        "errs", "%lu",
 329                        "drop", "%lu",
 330                        "fifo", "%lu",
 331                        "frame", "%lu",
 332                        "compressed", "%lu",
 333                        "multicast", "%lu",
 334                        "bytes", "%lu",
 335                        "packets", "%lu",
 336                        "errs", "%lu",
 337                        "drop", "%lu",
 338                        "fifo", "%lu",
 339                        "colls", "%lu",
 340                        "carrier", "%lu",
 341                        "compressed", "%lu",
 342                        NULL);
 343     if (!fmt)
 344         return -1;
 345 #else
 346     procnetdev_vsn = procnetdev_version(buf);
 347 #endif
 348
 349     err = 0;
 350     while (fgets(buf, sizeof buf, fh)) {
 351         char *s, name[IFNAMSIZ];
 352         s = get_name(name, buf);
 353         ife = add_interface(name);
 354         get_dev_fields(s, ife);
 355         ife->statistics_valid = 1;
 356         if (target && !strcmp(target,name))
 357                 break;
 358     }
 359     if (ferror(fh)) {
 360         perror(_PATH_PROCNET_DEV);
 361         err = -1;
 362         proc_read = 0;
 363     }
 364
 365 #if 0
 366     free(fmt);
 367 #endif
 368     fclose(fh);
 369     return err;
 370 }
 371
 372 int if_readlist(void)
 373 {
 374     int err = if_readlist_proc(NULL);
 375     if (!err)
 376             err = if_readconf();
 377     return err;
 378 }
 379
 380 /* Support for fetching an IPX address */
 381
 382 #if HAVE_AFIPX
 383 static int ipx_getaddr(int sock, int ft, struct ifreq *ifr)
 384 {
 385     ((struct sockaddr_ipx *) &ifr->ifr_addr)->sipx_type = ft;
 386     return ioctl(sock, SIOCGIFADDR, ifr);
 387 }
 388 #endif
 389
 390 /* Fetch the interface configuration from the kernel. */
 391 int if_fetch(struct interface *ife)
 392 {
 393     struct ifreq ifr;
 394     int fd;
 395     char *ifname = ife->name;
 396
 397     strcpy(ifr.ifr_name, ifname);
 398     if (ioctl(skfd, SIOCGIFFLAGS, &ifr) < 0)
 399         return (-1);
 400     ife->flags = ifr.ifr_flags;
 401
 402     strcpy(ifr.ifr_name, ifname);
 403     if (ioctl(skfd, SIOCGIFHWADDR, &ifr) < 0)
 404         memset(ife->hwaddr, 0, 32);
 405     else
 406         memcpy(ife->hwaddr, ifr.ifr_hwaddr.sa_data, 8);
 407
 408     ife->type = ifr.ifr_hwaddr.sa_family;
 409
 410     strcpy(ifr.ifr_name, ifname);
 411     if (ioctl(skfd, SIOCGIFMETRIC, &ifr) < 0)
 412         ife->metric = 0;
 413     else
 414         ife->metric = ifr.ifr_metric;
 415
 416     strcpy(ifr.ifr_name, ifname);
 417     if (ioctl(skfd, SIOCGIFMTU, &ifr) < 0)
 418         ife->mtu = 0;
 419     else
 420         ife->mtu = ifr.ifr_mtu;
 421
 422 #ifdef HAVE_HWSLIP
 423     if (ife->type == ARPHRD_SLIP || ife->type == ARPHRD_CSLIP ||
 424         ife->type == ARPHRD_SLIP6 || ife->type == ARPHRD_CSLIP6 ||
 425         ife->type == ARPHRD_ADAPT) {
 426 #ifdef SIOCGOUTFILL
 427         strcpy(ifr.ifr_name, ifname);
 428         if (ioctl(skfd, SIOCGOUTFILL, &ifr) < 0)
 429             ife->outfill = 0;
 430         else
 431             ife->outfill = (unsigned int) ifr.ifr_data;
 432 #endif
 433 #ifdef SIOCGKEEPALIVE
 434         strcpy(ifr.ifr_name, ifname);
 435         if (ioctl(skfd, SIOCGKEEPALIVE, &ifr) < 0)
 436             ife->keepalive = 0;
 437         else
 438             ife->keepalive = (unsigned int) ifr.ifr_data;
 439 #endif
 440     }
 441 #endif
 442
 443     strcpy(ifr.ifr_name, ifname);
 444     if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
 445         memset(&ife->map, 0, sizeof(struct ifmap));
 446     else
 447         memcpy(&ife->map, &ifr.ifr_map, sizeof(struct ifmap));
 448
 449     strcpy(ifr.ifr_name, ifname);
 450     if (ioctl(skfd, SIOCGIFMAP, &ifr) < 0)
 451         memset(&ife->map, 0, sizeof(struct ifmap));
 452     else
 453         ife->map = ifr.ifr_map;
 454
 455 #ifdef HAVE_TXQUEUELEN
 456     strcpy(ifr.ifr_name, ifname);
 457     if (ioctl(skfd, SIOCGIFTXQLEN, &ifr) < 0)
 458         ife->tx_queue_len = -1; /* unknown value */
 459     else
 460         ife->tx_queue_len = ifr.ifr_qlen;
 461 #else
 462     ife->tx_queue_len = -1;     /* unknown value */
 463 #endif
 464
 465 #if HAVE_AFINET
 466     /* IPv4 address? */
 467     fd = get_socket_for_af(AF_INET);
 468     if (fd >= 0) {
 469         strcpy(ifr.ifr_name, ifname);
 470         ifr.ifr_addr.sa_family = AF_INET;
 471         if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
 472             ife->has_ip = 1;
 473             ife->addr = ifr.ifr_addr;
 474             strcpy(ifr.ifr_name, ifname);
 475             if (ioctl(fd, SIOCGIFDSTADDR, &ifr) < 0)
 476                 memset(&ife->dstaddr, 0, sizeof(struct sockaddr));
 477             else
 478                 ife->dstaddr = ifr.ifr_dstaddr;
 479
 480             strcpy(ifr.ifr_name, ifname);
 481             if (ioctl(fd, SIOCGIFBRDADDR, &ifr) < 0)
 482                 memset(&ife->broadaddr, 0, sizeof(struct sockaddr));
 483             else
 484                 ife->broadaddr = ifr.ifr_broadaddr;
 485
 486             strcpy(ifr.ifr_name, ifname);
 487             if (ioctl(fd, SIOCGIFNETMASK, &ifr) < 0)
 488                 memset(&ife->netmask, 0, sizeof(struct sockaddr));
 489             else
 490                 ife->netmask = ifr.ifr_netmask;
 491         } else
 492             memset(&ife->addr, 0, sizeof(struct sockaddr));
 493     }
 494 #endif
 495
 496 #if HAVE_AFATALK
 497     /* DDP address maybe ? */
 498     fd = get_socket_for_af(AF_APPLETALK);
 499     if (fd >= 0) {
 500         strcpy(ifr.ifr_name, ifname);
 501         if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
 502             ife->ddpaddr = ifr.ifr_addr;
 503             ife->has_ddp = 1;
 504         }
 505     }
 506 #endif
 507
 508 #if HAVE_AFIPX
 509     /* Look for IPX addresses with all framing types */
 510     fd = get_socket_for_af(AF_IPX);
 511     if (fd >= 0) {
 512         strcpy(ifr.ifr_name, ifname);
 513         if (!ipx_getaddr(fd, IPX_FRAME_ETHERII, &ifr)) {
 514             ife->has_ipx_bb = 1;
 515             ife->ipxaddr_bb = ifr.ifr_addr;
 516         }
 517         strcpy(ifr.ifr_name, ifname);
 518         if (!ipx_getaddr(fd, IPX_FRAME_SNAP, &ifr)) {
 519             ife->has_ipx_sn = 1;
 520             ife->ipxaddr_sn = ifr.ifr_addr;
 521         }
 522         strcpy(ifr.ifr_name, ifname);
 523         if (!ipx_getaddr(fd, IPX_FRAME_8023, &ifr)) {
 524             ife->has_ipx_e3 = 1;
 525             ife->ipxaddr_e3 = ifr.ifr_addr;
 526         }
 527         strcpy(ifr.ifr_name, ifname);
 528         if (!ipx_getaddr(fd, IPX_FRAME_8022, &ifr)) {
 529             ife->has_ipx_e2 = 1;
 530             ife->ipxaddr_e2 = ifr.ifr_addr;
 531         }
 532     }
 533 #endif
 534
 535 #if HAVE_AFECONET
 536     /* Econet address maybe? */
 537     fd = get_socket_for_af(AF_ECONET);
 538     if (fd >= 0) {
 539         strcpy(ifr.ifr_name, ifname);
 540         if (ioctl(fd, SIOCGIFADDR, &ifr) == 0) {
 541             ife->ecaddr = ifr.ifr_addr;
 542             ife->has_econet = 1;
 543         }
 544     }
 545 #endif
 546
 547     return 0;
 548 }
 549
 550 int do_if_fetch(struct interface *ife)
 551 {
 552     if (if_fetch(ife) < 0) {
 553         char *errmsg;
 554         if (errno == ENODEV) {
 555             /* Give better error message for this case. */
 556             errmsg = _("Device not found");
 557         } else {
 558             errmsg = strerror(errno);
 559         }
 560         fprintf(stderr, _("%s: error fetching interface information: %s\n"),
 561                 ife->name, errmsg);
 562         return -1;
 563     }
 564     return 0;
 565 }
 566
 567 int do_if_print(struct interface *ife, void *cookie)
 568 {
 569     int *opt_a = (int *) cookie;
 570     int res;
 571
 572     res = do_if_fetch(ife);
 573     if (res >= 0) {
 574         if ((ife->flags & IFF_UP) || *opt_a)
 575             ife_print(ife);
 576     }
 577     return res;
 578 }
 579
 580 void ife_print_short(struct interface *ptr)
 581 {
 582     printf("%-5.5s ", ptr->name);
 583     printf("%5d %3d", ptr->mtu, ptr->metric);
 584     /* If needed, display the interface statistics. */
 585     if (ptr->statistics_valid) {
 586         printf("%8llu %6lu %6lu %6lu",
 587                ptr->stats.rx_packets, ptr->stats.rx_errors,
 588                ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors);
 589         printf("%8llu %6lu %6lu %6lu ",
 590                ptr->stats.tx_packets, ptr->stats.tx_errors,
 591                ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors);
 592     } else {
 593         printf("%-56s", _("     - no statistics available -"));
 594     }
 595     /* DONT FORGET TO ADD THE FLAGS IN ife_print_long, too */
 596     if (ptr->flags == 0)
 597         printf(_("[NO FLAGS]"));
 598     if (ptr->flags & IFF_ALLMULTI)
 599         printf("A");
 600     if (ptr->flags & IFF_BROADCAST)
 601         printf("B");
 602     if (ptr->flags & IFF_DEBUG)
 603         printf("D");
 604     if (ptr->flags & IFF_LOOPBACK)
 605         printf("L");
 606     if (ptr->flags & IFF_MULTICAST)
 607         printf("M");
 608 #ifdef HAVE_DYNAMIC
 609     if (ptr->flags & IFF_DYNAMIC)
 610         printf("d");
 611 #endif
 612     if (ptr->flags & IFF_PROMISC)
 613         printf("P");
 614     if (ptr->flags & IFF_NOTRAILERS)
 615         printf("N");
 616     if (ptr->flags & IFF_NOARP)
 617         printf("O");
 618     if (ptr->flags & IFF_POINTOPOINT)
 619         printf("P");
 620     if (ptr->flags & IFF_SLAVE)
 621         printf("s");
 622     if (ptr->flags & IFF_MASTER)
 623         printf("m");
 624     if (ptr->flags & IFF_RUNNING)
 625         printf("R");
 626     if (ptr->flags & IFF_UP)
 627         printf("U");
 628     /* DONT FORGET TO ADD THE FLAGS IN ife_print_long, too */
 629     printf("\n");
 630 }
 631
 632 void ife_print_long(struct interface *ptr)
 633 {
 634     struct aftype *ap;
 635     struct hwtype *hw;
 636     int hf;
 637     int can_compress = 0;
 638     unsigned long long rx, tx, short_rx, short_tx;
 639     char Rext[5]="b";
 640     char Text[5]="b";
 641
 642 #if HAVE_AFIPX
 643     static struct aftype *ipxtype = NULL;
 644 #endif
 645 #if HAVE_AFECONET
 646     static struct aftype *ectype = NULL;
 647 #endif
 648 #if HAVE_AFATALK
 649     static struct aftype *ddptype = NULL;
 650 #endif
 651 #if HAVE_AFINET6
 652     FILE *f;
 653     char addr6[40], devname[20];
 654     struct sockaddr_in6 sap;
 655     int plen, scope, dad_status, if_idx;
 656     extern struct aftype inet6_aftype;
 657     char addr6p[8][5];
 658 #endif
 659
 660     ap = get_afntype(ptr->addr.sa_family);
 661     if (ap == NULL)
 662         ap = get_afntype(0);
 663
 664     hf = ptr->type;
 665
 666     if (hf == ARPHRD_CSLIP || hf == ARPHRD_CSLIP6)
 667         can_compress = 1;
 668
 669     hw = get_hwntype(hf);
 670     if (hw == NULL)
 671         hw = get_hwntype(-1);
 672
 673     printf(_("%-9.9s Link encap:%s  "), ptr->name, hw->title);
 674     /* For some hardware types (eg Ash, ATM) we don't print the
 675        hardware address if it's null.  */
 676     if (hw->print != NULL && (! (hw_null_address(hw, ptr->hwaddr) &&
 677                                   hw->suppress_null_addr)))
 678         printf(_("HWaddr %s  "), hw->print(ptr->hwaddr));
 679 #ifdef IFF_PORTSEL
 680     if (ptr->flags & IFF_PORTSEL) {
 681         printf(_("Media:%s"), if_port_text[ptr->map.port][0]);
 682         if (ptr->flags & IFF_AUTOMEDIA)
 683             printf(_("(auto)"));
 684     }
 685 #endif
 686     printf("\n");
 687
 688 #if HAVE_AFINET
 689     if (ptr->has_ip) {
 690         printf(_("          %s addr:%s "), ap->name,
 691                ap->sprint(&ptr->addr, 1));
 692         if (ptr->flags & IFF_POINTOPOINT) {
 693             printf(_(" P-t-P:%s "), ap->sprint(&ptr->dstaddr, 1));
 694         }
 695         if (ptr->flags & IFF_BROADCAST) {
 696             printf(_(" Bcast:%s "), ap->sprint(&ptr->broadaddr, 1));
 697         }
 698         printf(_(" Mask:%s\n"), ap->sprint(&ptr->netmask, 1));
 699     }
 700 #endif
 701
 702 #if HAVE_AFINET6
 703     /* FIXME: should be integrated into interface.c.   */
 704
 705     if ((f = fopen(_PATH_PROCNET_IFINET6, "r")) != NULL) {
 706         while (fscanf(f, "%4s%4s%4s%4s%4s%4s%4s%4s %02x %02x %02x %02x %20s\n",
 707                       addr6p[0], addr6p[1], addr6p[2], addr6p[3],
 708                       addr6p[4], addr6p[5], addr6p[6], addr6p[7],
 709                   &if_idx, &plen, &scope, &dad_status, devname) != EOF) {
 710             if (!strcmp(devname, ptr->name)) {
 711                 sprintf(addr6, "%s:%s:%s:%s:%s:%s:%s:%s",
 712                         addr6p[0], addr6p[1], addr6p[2], addr6p[3],
 713                         addr6p[4], addr6p[5], addr6p[6], addr6p[7]);
 714                 inet6_aftype.input(1, addr6, (struct sockaddr *) &sap);
 715                 printf(_("          inet6 addr: %s/%d"),
 716                  inet6_aftype.sprint((struct sockaddr *) &sap, 1), plen);
 717                 printf(_(" Scope:"));
 718                 switch (scope) {
 719                 case 0:
 720                     printf(_("Global"));
 721                     break;
 722                 case IPV6_ADDR_LINKLOCAL:
 723                     printf(_("Link"));
 724                     break;
 725                 case IPV6_ADDR_SITELOCAL:
 726                     printf(_("Site"));
 727                     break;
 728                 case IPV6_ADDR_COMPATv4:
 729                     printf(_("Compat"));
 730                     break;
 731                 case IPV6_ADDR_LOOPBACK:
 732                     printf(_("Host"));
 733                     break;
 734                 default:
 735                     printf(_("Unknown"));
 736                 }
 737                 printf("\n");
 738             }
 739         }
 740         fclose(f);
 741     }
 742 #endif
 743
 744 #if HAVE_AFIPX
 745     if (ipxtype == NULL)
 746         ipxtype = get_afntype(AF_IPX);
 747
 748     if (ipxtype != NULL) {
 749         if (ptr->has_ipx_bb)
 750             printf(_("          IPX/Ethernet II addr:%s\n"),
 751                    ipxtype->sprint(&ptr->ipxaddr_bb, 1));
 752         if (ptr->has_ipx_sn)
 753             printf(_("          IPX/Ethernet SNAP addr:%s\n"),
 754                    ipxtype->sprint(&ptr->ipxaddr_sn, 1));
 755         if (ptr->has_ipx_e2)
 756             printf(_("          IPX/Ethernet 802.2 addr:%s\n"),
 757                    ipxtype->sprint(&ptr->ipxaddr_e2, 1));
 758         if (ptr->has_ipx_e3)
 759             printf(_("          IPX/Ethernet 802.3 addr:%s\n"),
 760                    ipxtype->sprint(&ptr->ipxaddr_e3, 1));
 761     }
 762 #endif
 763
 764 #if HAVE_AFATALK
 765     if (ddptype == NULL)
 766         ddptype = get_afntype(AF_APPLETALK);
 767     if (ddptype != NULL) {
 768         if (ptr->has_ddp)
 769             printf(_("          EtherTalk Phase 2 addr:%s\n"), ddptype->sprint(&ptr->ddpaddr, 1));
 770     }
 771 #endif
 772
 773 #if HAVE_AFECONET
 774     if (ectype == NULL)
 775         ectype = get_afntype(AF_ECONET);
 776     if (ectype != NULL) {
 777         if (ptr->has_econet)
 778             printf(_("          econet addr:%s\n"), ectype->sprint(&ptr->ecaddr, 1));
 779     }
 780 #endif
 781
 782     printf("          ");
 783     /* DONT FORGET TO ADD THE FLAGS IN ife_print_short, too */
 784     if (ptr->flags == 0)
 785         printf(_("[NO FLAGS] "));
 786     if (ptr->flags & IFF_UP)
 787         printf(_("UP "));
 788     if (ptr->flags & IFF_BROADCAST)
 789         printf(_("BROADCAST "));
 790     if (ptr->flags & IFF_DEBUG)
 791         printf(_("DEBUG "));
 792     if (ptr->flags & IFF_LOOPBACK)
 793         printf(_("LOOPBACK "));
 794     if (ptr->flags & IFF_POINTOPOINT)
 795         printf(_("POINTOPOINT "));
 796     if (ptr->flags & IFF_NOTRAILERS)
 797         printf(_("NOTRAILERS "));
 798     if (ptr->flags & IFF_RUNNING)
 799         printf(_("RUNNING "));
 800     if (ptr->flags & IFF_NOARP)
 801         printf(_("NOARP "));
 802     if (ptr->flags & IFF_PROMISC)
 803         printf(_("PROMISC "));
 804     if (ptr->flags & IFF_ALLMULTI)
 805         printf(_("ALLMULTI "));
 806     if (ptr->flags & IFF_SLAVE)
 807         printf(_("SLAVE "));
 808     if (ptr->flags & IFF_MASTER)
 809         printf(_("MASTER "));
 810     if (ptr->flags & IFF_MULTICAST)
 811         printf(_("MULTICAST "));
 812 #ifdef HAVE_DYNAMIC
 813     if (ptr->flags & IFF_DYNAMIC)
 814         printf(_("DYNAMIC "));
 815 #endif
 816     /* DONT FORGET TO ADD THE FLAGS IN ife_print_short */
 817     printf(_(" MTU:%d  Metric:%d"),
 818            ptr->mtu, ptr->metric ? ptr->metric : 1);
 819 #ifdef SIOCSKEEPALIVE
 820     if (ptr->outfill || ptr->keepalive)
 821         printf(_("  Outfill:%d  Keepalive:%d"),
 822                ptr->outfill, ptr->keepalive);
 823 #endif
 824     printf("\n");
 825
 826     /* If needed, display the interface statistics. */
 827
 828     if (ptr->statistics_valid) {
 829         /* XXX: statistics are currently only printed for the primary address,
 830          *      not for the aliases, although strictly speaking they're shared
 831          *      by all addresses.
 832          */
 833         printf("          ");
 834
 835         printf(_("RX packets:%llu errors:%lu dropped:%lu overruns:%lu frame:%lu\n"),
 836                ptr->stats.rx_packets, ptr->stats.rx_errors,
 837                ptr->stats.rx_dropped, ptr->stats.rx_fifo_errors,
 838                ptr->stats.rx_frame_errors);
 839         if (can_compress)
 840             printf(_("             compressed:%lu\n"), ptr->stats.rx_compressed);
 841
 842         rx = ptr->stats.rx_bytes;
 843         tx = ptr->stats.tx_bytes;
 844         short_rx = rx * 10;
 845         short_tx = tx * 10;
 846         if (rx > 1048576) { short_rx /= 1048576;  strcpy(Rext, "Mb"); }
 847         else if (rx > 1024) { short_rx /= 1024;  strcpy(Rext, "Kb"); }
 848         if (tx > 1048576) { short_tx /= 1048576;  strcpy(Text, "Mb"); }
 849         else if (tx > 1024) { short_tx /= 1024;  strcpy(Text, "Kb"); }
 850
 851         printf("          ");
 852         printf(_("TX packets:%llu errors:%lu dropped:%lu overruns:%lu carrier:%lu\n"),
 853                ptr->stats.tx_packets, ptr->stats.tx_errors,
 854                ptr->stats.tx_dropped, ptr->stats.tx_fifo_errors,
 855                ptr->stats.tx_carrier_errors);
 856         printf(_("          collisions:%lu "), ptr->stats.collisions);
 857         if (can_compress)
 858             printf(_("compressed:%lu "), ptr->stats.tx_compressed);
 859         if (ptr->tx_queue_len != -1)
 860             printf(_("txqueuelen:%d "), ptr->tx_queue_len);
 861         printf("\n          ");
 862         printf(_("RX bytes:%llu (%lu.%lu %s)  TX bytes:%llu (%lu.%lu %s)\n"),
 863                rx, (unsigned long)(short_rx / 10),
 864                (unsigned long)(short_rx % 10), Rext,
 865                tx, (unsigned long)(short_tx / 10),
 866                (unsigned long)(short_tx % 10), Text);
 867     }
 868
 869     if ((ptr->map.irq || ptr->map.mem_start || ptr->map.dma ||
 870          ptr->map.base_addr)) {
 871         printf("          ");
 872         if (ptr->map.irq)
 873             printf(_("Interrupt:%d "), ptr->map.irq);
 874         if (ptr->map.base_addr >= 0x100)        /* Only print devices using it for
 875                                                    I/O maps */
 876             printf(_("Base address:0x%x "), ptr->map.base_addr);
 877         if (ptr->map.mem_start) {
 878             printf(_("Memory:%lx-%lx "), ptr->map.mem_start, ptr->map.mem_end);
 879         }
 880         if (ptr->map.dma)
 881             printf(_("DMA chan:%x "), ptr->map.dma);
 882         printf("\n");
 883     }
 884     printf("\n");
 885 }
 886
 887 void ife_print(struct interface *i)
 888 {
 889     if (ife_short)
 890         ife_print_short(i);
 891     else
 892         ife_print_long(i);
 893 }