The Tcpdump Group git mirrors - tcpdump/blob - print-ether.c

   1 /*
   2  * Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000
   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: (1) source code distributions
   7  * retain the above copyright notice and this paragraph in its entirety, (2)
   8  * distributions including binary code include the above copyright notice and
   9  * this paragraph in its entirety in the documentation or other materials
  10  * provided with the distribution, and (3) all advertising materials mentioning
  11  * features or use of this software display the following acknowledgement:
  12  * ``This product includes software developed by the University of California,
  13  * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
  14  * the University nor the names of its contributors may be used to endorse
  15  * or promote products derived from this software without specific prior
  16  * written permission.
  17  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  18  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  20  */
  21
  22 /* \summary: Ethernet printer */
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include <config.h>
  26 #endif
  27
  28 #include "netdissect-stdinc.h"
  29
  30 #include "netdissect.h"
  31 #include "extract.h"
  32 #include "addrtoname.h"
  33 #include "ethertype.h"
  34
  35 /*
  36  * Structure of an Ethernet header.
  37  */
  38 struct  ether_header {
  39         nd_mac_addr     ether_dhost;
  40         nd_mac_addr     ether_shost;
  41         nd_uint16_t     ether_length_type;
  42 };
  43
  44 /*
  45  * Length of an Ethernet header; note that some compilers may pad
  46  * "struct ether_header" to a multiple of 4 bytes, for example, so
  47  * "sizeof (struct ether_header)" may not give the right answer.
  48  */
  49 #define ETHER_HDRLEN            14
  50
  51 const struct tok ethertype_values[] = {
  52     { ETHERTYPE_IP,             "IPv4" },
  53     { ETHERTYPE_MPLS,           "MPLS unicast" },
  54     { ETHERTYPE_MPLS_MULTI,     "MPLS multicast" },
  55     { ETHERTYPE_IPV6,           "IPv6" },
  56     { ETHERTYPE_8021Q,          "802.1Q" },
  57     { ETHERTYPE_8021Q9100,      "802.1Q-9100" },
  58     { ETHERTYPE_8021QinQ,       "802.1Q-QinQ" },
  59     { ETHERTYPE_8021Q9200,      "802.1Q-9200" },
  60     { ETHERTYPE_MACSEC,         "802.1AE MACsec" },
  61     { ETHERTYPE_VMAN,           "VMAN" },
  62     { ETHERTYPE_PUP,            "PUP" },
  63     { ETHERTYPE_ARP,            "ARP"},
  64     { ETHERTYPE_REVARP,         "Reverse ARP"},
  65     { ETHERTYPE_NS,             "NS" },
  66     { ETHERTYPE_SPRITE,         "Sprite" },
  67     { ETHERTYPE_TRAIL,          "Trail" },
  68     { ETHERTYPE_MOPDL,          "MOP DL" },
  69     { ETHERTYPE_MOPRC,          "MOP RC" },
  70     { ETHERTYPE_DN,             "DN" },
  71     { ETHERTYPE_LAT,            "LAT" },
  72     { ETHERTYPE_SCA,            "SCA" },
  73     { ETHERTYPE_TEB,            "TEB" },
  74     { ETHERTYPE_LANBRIDGE,      "Lanbridge" },
  75     { ETHERTYPE_DECDNS,         "DEC DNS" },
  76     { ETHERTYPE_DECDTS,         "DEC DTS" },
  77     { ETHERTYPE_VEXP,           "VEXP" },
  78     { ETHERTYPE_VPROD,          "VPROD" },
  79     { ETHERTYPE_ATALK,          "Appletalk" },
  80     { ETHERTYPE_AARP,           "Appletalk ARP" },
  81     { ETHERTYPE_IPX,            "IPX" },
  82     { ETHERTYPE_PPP,            "PPP" },
  83     { ETHERTYPE_MPCP,           "MPCP" },
  84     { ETHERTYPE_SLOW,           "Slow Protocols" },
  85     { ETHERTYPE_PPPOED,         "PPPoE D" },
  86     { ETHERTYPE_PPPOES,         "PPPoE S" },
  87     { ETHERTYPE_EAPOL,          "EAPOL" },
  88     { ETHERTYPE_RRCP,           "RRCP" },
  89     { ETHERTYPE_MS_NLB_HB,      "MS NLB heartbeat" },
  90     { ETHERTYPE_JUMBO,          "Jumbo" },
  91     { ETHERTYPE_NSH,            "NSH" },
  92     { ETHERTYPE_LOOPBACK,       "Loopback" },
  93     { ETHERTYPE_ISO,            "OSI" },
  94     { ETHERTYPE_GRE_ISO,        "GRE-OSI" },
  95     { ETHERTYPE_CFM_OLD,        "CFM (old)" },
  96     { ETHERTYPE_CFM,            "CFM" },
  97     { ETHERTYPE_IEEE1905_1,     "IEEE1905.1" },
  98     { ETHERTYPE_LLDP,           "LLDP" },
  99     { ETHERTYPE_TIPC,           "TIPC"},
 100     { ETHERTYPE_GEONET_OLD,     "GeoNet (old)"},
 101     { ETHERTYPE_GEONET,         "GeoNet"},
 102     { ETHERTYPE_CALM_FAST,      "CALM FAST"},
 103     { ETHERTYPE_AOE,            "AoE" },
 104     { ETHERTYPE_PTP,            "PTP" },
 105     { ETHERTYPE_ARISTA,         "Arista Vendor Specific Protocol" },
 106     { 0, NULL}
 107 };
 108
 109 static void
 110 ether_addresses_print(netdissect_options *ndo, const u_char *src,
 111                       const u_char *dst)
 112 {
 113         ND_PRINT("%s > %s, ",
 114                  GET_ETHERADDR_STRING(src), GET_ETHERADDR_STRING(dst));
 115 }
 116
 117 static void
 118 ether_type_print(netdissect_options *ndo, uint16_t type)
 119 {
 120         if (!ndo->ndo_qflag)
 121                 ND_PRINT("ethertype %s (0x%04x)",
 122                          tok2str(ethertype_values, "Unknown", type), type);
 123         else
 124                 ND_PRINT("%s",
 125                          tok2str(ethertype_values, "Unknown Ethertype (0x%04x)", type));
 126 }
 127
 128 /*
 129  * Common code for printing Ethernet frames.
 130  *
 131  * It can handle Ethernet headers with extra tag information inserted
 132  * after the destination and source addresses, as is inserted by some
 133  * switch chips, and extra encapsulation header information before
 134  * printing Ethernet header information (such as a LANE ID for ATM LANE).
 135  */
 136 static u_int
 137 ether_common_print(netdissect_options *ndo, const u_char *p, u_int length,
 138     u_int caplen,
 139     void (*print_switch_tag)(netdissect_options *ndo, const u_char *),
 140     u_int switch_tag_len,
 141     void (*print_encap_header)(netdissect_options *ndo, const u_char *),
 142     const u_char *encap_header_arg)
 143 {
 144         const struct ether_header *ehp;
 145         u_int orig_length;
 146         u_int hdrlen;
 147         u_short length_type;
 148         int printed_length;
 149         int llc_hdrlen;
 150         struct lladdr_info src, dst;
 151
 152         if (caplen < ETHER_HDRLEN + switch_tag_len) {
 153                 nd_print_trunc(ndo);
 154                 return caplen;
 155         }
 156         if (length < ETHER_HDRLEN + switch_tag_len) {
 157                 nd_print_trunc(ndo);
 158                 return length;
 159         }
 160
 161         if (print_encap_header != NULL)
 162                 (*print_encap_header)(ndo, encap_header_arg);
 163
 164         orig_length = length;
 165
 166         /*
 167          * Get the source and destination addresses, skip past them,
 168          * and print them if we're printing the link-layer header.
 169          */
 170         ehp = (const struct ether_header *)p;
 171         src.addr = ehp->ether_shost;
 172         src.addr_string = etheraddr_string;
 173         dst.addr = ehp->ether_dhost;
 174         dst.addr_string = etheraddr_string;
 175
 176         length -= 2*MAC_ADDR_LEN;
 177         caplen -= 2*MAC_ADDR_LEN;
 178         p += 2*MAC_ADDR_LEN;
 179         hdrlen = 2*MAC_ADDR_LEN;
 180
 181         if (ndo->ndo_eflag)
 182                 ether_addresses_print(ndo, src.addr, dst.addr);
 183
 184         /*
 185          * Print the switch tag, if we have one, and skip past it.
 186          */
 187         if (print_switch_tag != NULL)
 188                 (*print_switch_tag)(ndo, p);
 189
 190         length -= switch_tag_len;
 191         caplen -= switch_tag_len;
 192         p += switch_tag_len;
 193         hdrlen += switch_tag_len;
 194
 195         /*
 196          * Get the length/type field, skip past it, and print it
 197          * if we're printing the link-layer header.
 198          */
 199 recurse:
 200         length_type = GET_BE_U_2(p);
 201
 202         length -= 2;
 203         caplen -= 2;
 204         p += 2;
 205         hdrlen += 2;
 206
 207         /*
 208          * Process 802.1AE MACsec headers.
 209          */
 210         printed_length = 0;
 211         if (length_type == ETHERTYPE_MACSEC) {
 212                 /*
 213                  * MACsec, aka IEEE 802.1AE-2006
 214                  * Print the header, and try to print the payload if it's not encrypted
 215                  */
 216                 if (ndo->ndo_eflag) {
 217                         ether_type_print(ndo, length_type);
 218                         ND_PRINT(", length %u: ", orig_length);
 219                         printed_length = 1;
 220                 }
 221
 222                 int ret = macsec_print(ndo, &p, &length, &caplen, &hdrlen,
 223                     &src, &dst);
 224
 225                 if (ret == 0) {
 226                         /* Payload is encrypted; print it as raw data. */
 227                         if (!ndo->ndo_suppress_default_print)
 228                                 ND_DEFAULTPRINT(p, caplen);
 229                         return hdrlen;
 230                 } else if (ret > 0) {
 231                         /* Problem printing the header; just quit. */
 232                         return ret;
 233                 } else {
 234                         /*
 235                          * Keep processing type/length fields.
 236                          */
 237                         length_type = GET_BE_U_2(p);
 238
 239                         length -= 2;
 240                         caplen -= 2;
 241                         p += 2;
 242                         hdrlen += 2;
 243                 }
 244         }
 245
 246         /*
 247          * Process VLAN tag types.
 248          */
 249         while (length_type == ETHERTYPE_8021Q  ||
 250                 length_type == ETHERTYPE_8021Q9100 ||
 251                 length_type == ETHERTYPE_8021Q9200 ||
 252                 length_type == ETHERTYPE_8021QinQ) {
 253                 /*
 254                  * It has a VLAN tag.
 255                  * Print VLAN information, and then go back and process
 256                  * the enclosed type field.
 257                  */
 258                 if (caplen < 4) {
 259                         ndo->ndo_protocol = "vlan";
 260                         nd_print_trunc(ndo);
 261                         return hdrlen + caplen;
 262                 }
 263                 if (length < 4) {
 264                         ndo->ndo_protocol = "vlan";
 265                         nd_print_trunc(ndo);
 266                         return hdrlen + length;
 267                 }
 268                 if (ndo->ndo_eflag) {
 269                         uint16_t tag = GET_BE_U_2(p);
 270
 271                         ether_type_print(ndo, length_type);
 272                         if (!printed_length) {
 273                                 ND_PRINT(", length %u: ", orig_length);
 274                                 printed_length = 1;
 275                         } else
 276                                 ND_PRINT(", ");
 277                         ND_PRINT("%s, ", ieee8021q_tci_string(tag));
 278                 }
 279
 280                 length_type = GET_BE_U_2(p + 2);
 281                 p += 4;
 282                 length -= 4;
 283                 caplen -= 4;
 284                 hdrlen += 4;
 285         }
 286
 287         /*
 288          * We now have the final length/type field.
 289          */
 290         if (length_type <= MAX_ETHERNET_LENGTH_VAL) {
 291                 /*
 292                  * It's a length field, containing the length of the
 293                  * remaining payload; use it as such, as long as
 294                  * it's not too large (bigger than the actual payload).
 295                  */
 296                 if (length_type < length) {
 297                         length = length_type;
 298                         if (caplen > length)
 299                                 caplen = length;
 300                 }
 301
 302                 /*
 303                  * Cut off the snapshot length to the end of the
 304                  * payload.
 305                  */
 306                 nd_push_snapend(ndo, p + length);
 307
 308                 if (ndo->ndo_eflag) {
 309                         ND_PRINT("802.3");
 310                         if (!printed_length)
 311                                 ND_PRINT(", length %u: ", length);
 312                 }
 313
 314                 /*
 315                  * An LLC header follows the length.  Print that and
 316                  * higher layers.
 317                  */
 318                 llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
 319                 if (llc_hdrlen < 0) {
 320                         /* packet type not known, print raw packet */
 321                         if (!ndo->ndo_suppress_default_print)
 322                                 ND_DEFAULTPRINT(p, caplen);
 323                         llc_hdrlen = -llc_hdrlen;
 324                 }
 325                 hdrlen += llc_hdrlen;
 326                 nd_pop_packet_info(ndo);
 327         } else if (length_type == ETHERTYPE_JUMBO) {
 328                 /*
 329                  * It's a type field, with the type for Alteon jumbo frames.
 330                  * See
 331                  *
 332                  *      https://tools.ietf.org/html/draft-ietf-isis-ext-eth-01
 333                  *
 334                  * which indicates that, following the type field,
 335                  * there's an LLC header and payload.
 336                  */
 337                 /* Try to print the LLC-layer header & higher layers */
 338                 llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
 339                 if (llc_hdrlen < 0) {
 340                         /* packet type not known, print raw packet */
 341                         if (!ndo->ndo_suppress_default_print)
 342                                 ND_DEFAULTPRINT(p, caplen);
 343                         llc_hdrlen = -llc_hdrlen;
 344                 }
 345                 hdrlen += llc_hdrlen;
 346         } else if (length_type == ETHERTYPE_ARISTA) {
 347                 if (caplen < 2) {
 348                         ND_PRINT("[|arista]");
 349                         return hdrlen + caplen;
 350                 }
 351                 if (length < 2) {
 352                         ND_PRINT("[|arista]");
 353                         return hdrlen + length;
 354                 }
 355                 ether_type_print(ndo, length_type);
 356                 ND_PRINT(", length %u: ", orig_length);
 357                 int bytesConsumed = arista_ethertype_print(ndo, p, length);
 358                 if (bytesConsumed > 0) {
 359                         p += bytesConsumed;
 360                         length -= bytesConsumed;
 361                         caplen -= bytesConsumed;
 362                         hdrlen += bytesConsumed;
 363                         goto recurse;
 364                 } else {
 365                         /* subtype/version not known, print raw packet */
 366                         if (!ndo->ndo_eflag && length_type > MAX_ETHERNET_LENGTH_VAL) {
 367                                 ether_addresses_print(ndo, src.addr, dst.addr);
 368                                 ether_type_print(ndo, length_type);
 369                                 ND_PRINT(", length %u: ", orig_length);
 370                         }
 371                          if (!ndo->ndo_suppress_default_print)
 372                                  ND_DEFAULTPRINT(p, caplen);
 373                 }
 374         } else {
 375                 /*
 376                  * It's a type field with some other value.
 377                  */
 378                 if (ndo->ndo_eflag) {
 379                         ether_type_print(ndo, length_type);
 380                         if (!printed_length)
 381                                 ND_PRINT(", length %u: ", orig_length);
 382                         else
 383                                 ND_PRINT(", ");
 384                 }
 385                 if (ethertype_print(ndo, length_type, p, length, caplen, &src, &dst) == 0) {
 386                         /* type not known, print raw packet */
 387                         if (!ndo->ndo_eflag) {
 388                                 /*
 389                                  * We didn't print the full link-layer
 390                                  * header, as -e wasn't specified, so
 391                                  * print only the source and destination
 392                                  * MAC addresses and the final Ethernet
 393                                  * type.
 394                                  */
 395                                 ether_addresses_print(ndo, src.addr, dst.addr);
 396                                 ether_type_print(ndo, length_type);
 397                                 ND_PRINT(", length %u: ", orig_length);
 398                         }
 399
 400                         if (!ndo->ndo_suppress_default_print)
 401                                 ND_DEFAULTPRINT(p, caplen);
 402                 }
 403         }
 404         return hdrlen;
 405 }
 406
 407 /*
 408  * Print an Ethernet frame while specyfing a non-standard Ethernet header
 409  * length.
 410  * This might be encapsulated within another frame; we might be passed
 411  * a pointer to a function that can print header information for that
 412  * frame's protocol, and an argument to pass to that function.
 413  *
 414  * FIXME: caplen can and should be derived from ndo->ndo_snapend and p.
 415  */
 416 u_int
 417 ether_switch_tag_print(netdissect_options *ndo, const u_char *p, u_int length,
 418     u_int caplen,
 419     void (*print_switch_tag)(netdissect_options *, const u_char *),
 420     u_int switch_tag_len)
 421 {
 422         return ether_common_print(ndo, p, length, caplen, print_switch_tag,
 423                                   switch_tag_len, NULL, NULL);
 424 }
 425
 426 /*
 427  * Print an Ethernet frame.
 428  * This might be encapsulated within another frame; we might be passed
 429  * a pointer to a function that can print header information for that
 430  * frame's protocol, and an argument to pass to that function.
 431  *
 432  * FIXME: caplen can and should be derived from ndo->ndo_snapend and p.
 433  */
 434 u_int
 435 ether_print(netdissect_options *ndo,
 436             const u_char *p, u_int length, u_int caplen,
 437             void (*print_encap_header)(netdissect_options *ndo, const u_char *),
 438             const u_char *encap_header_arg)
 439 {
 440         ndo->ndo_protocol = "ether";
 441         return ether_common_print(ndo, p, length, caplen, NULL, 0,
 442                                   print_encap_header, encap_header_arg);
 443 }
 444
 445 /*
 446  * This is the top level routine of the printer.  'p' points
 447  * to the ether header of the packet, 'h->len' is the length
 448  * of the packet off the wire, and 'h->caplen' is the number
 449  * of bytes actually captured.
 450  */
 451 void
 452 ether_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h,
 453                const u_char *p)
 454 {
 455         ndo->ndo_protocol = "ether";
 456         ndo->ndo_ll_hdr_len +=
 457                 ether_print(ndo, p, h->len, h->caplen, NULL, NULL);
 458 }
 459
 460 /*
 461  * This is the top level routine of the printer.  'p' points
 462  * to the ether header of the packet, 'h->len' is the length
 463  * of the packet off the wire, and 'h->caplen' is the number
 464  * of bytes actually captured.
 465  *
 466  * This is for DLT_NETANALYZER, which has a 4-byte pseudo-header
 467  * before the Ethernet header.
 468  */
 469 void
 470 netanalyzer_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h,
 471                      const u_char *p)
 472 {
 473         /*
 474          * Fail if we don't have enough data for the Hilscher pseudo-header.
 475          */
 476         ndo->ndo_protocol = "netanalyzer";
 477         if (h->caplen < 4) {
 478                 ndo->ndo_ll_hdr_len += h->caplen;
 479                 nd_print_trunc(ndo);
 480                 return;
 481         }
 482
 483         /* Skip the pseudo-header. */
 484         ndo->ndo_ll_hdr_len += 4;
 485         ndo->ndo_ll_hdr_len +=
 486                 ether_print(ndo, p + 4, h->len - 4, h->caplen - 4, NULL, NULL);
 487 }
 488
 489 /*
 490  * This is the top level routine of the printer.  'p' points
 491  * to the ether header of the packet, 'h->len' is the length
 492  * of the packet off the wire, and 'h->caplen' is the number
 493  * of bytes actually captured.
 494  *
 495  * This is for DLT_NETANALYZER_TRANSPARENT, which has a 4-byte
 496  * pseudo-header, a 7-byte Ethernet preamble, and a 1-byte Ethernet SOF
 497  * before the Ethernet header.
 498  */
 499 void
 500 netanalyzer_transparent_if_print(netdissect_options *ndo,
 501                                  const struct pcap_pkthdr *h,
 502                                  const u_char *p)
 503 {
 504         /*
 505          * Fail if we don't have enough data for the Hilscher pseudo-header,
 506          * preamble, and SOF.
 507          */
 508         ndo->ndo_protocol = "netanalyzer_transparent";
 509         if (h->caplen < 12) {
 510                 ndo->ndo_ll_hdr_len += h->caplen;
 511                 nd_print_trunc(ndo);
 512                 return;
 513         }
 514
 515         /* Skip the pseudo-header, preamble, and SOF. */
 516         ndo->ndo_ll_hdr_len += 12;
 517         ndo->ndo_ll_hdr_len +=
 518                 ether_print(ndo, p + 12, h->len - 12, h->caplen - 12, NULL, NULL);
 519 }
 520
 521 /*
 522  * Prints the packet payload, given an Ethernet type code for the payload's
 523  * protocol.
 524  *
 525  * Returns non-zero if it can do so, zero if the ethertype is unknown.
 526  */
 527
 528 int
 529 ethertype_print(netdissect_options *ndo,
 530                 u_short ether_type, const u_char *p,
 531                 u_int length, u_int caplen,
 532                 const struct lladdr_info *src, const struct lladdr_info *dst)
 533 {
 534         switch (ether_type) {
 535
 536         case ETHERTYPE_IP:
 537                 ip_print(ndo, p, length);
 538                 return (1);
 539
 540         case ETHERTYPE_IPV6:
 541                 ip6_print(ndo, p, length);
 542                 return (1);
 543
 544         case ETHERTYPE_ARP:
 545         case ETHERTYPE_REVARP:
 546                 arp_print(ndo, p, length, caplen);
 547                 return (1);
 548
 549         case ETHERTYPE_DN:
 550                 decnet_print(ndo, p, length, caplen);
 551                 return (1);
 552
 553         case ETHERTYPE_ATALK:
 554                 if (ndo->ndo_vflag)
 555                         ND_PRINT("et1 ");
 556                 atalk_print(ndo, p, length);
 557                 return (1);
 558
 559         case ETHERTYPE_AARP:
 560                 aarp_print(ndo, p, length);
 561                 return (1);
 562
 563         case ETHERTYPE_IPX:
 564                 ND_PRINT("(NOV-ETHII) ");
 565                 ipx_print(ndo, p, length);
 566                 return (1);
 567
 568         case ETHERTYPE_ISO:
 569                 if (length == 0 || caplen == 0) {
 570                         ndo->ndo_protocol = "isoclns";
 571                         nd_print_trunc(ndo);
 572                         return (1);
 573                 }
 574                 isoclns_print(ndo, p + 1, length - 1);
 575                 return(1);
 576
 577         case ETHERTYPE_PPPOED:
 578         case ETHERTYPE_PPPOES:
 579         case ETHERTYPE_PPPOED2:
 580         case ETHERTYPE_PPPOES2:
 581                 pppoe_print(ndo, p, length);
 582                 return (1);
 583
 584         case ETHERTYPE_EAPOL:
 585                 eapol_print(ndo, p);
 586                 return (1);
 587
 588         case ETHERTYPE_RRCP:
 589                 rrcp_print(ndo, p, length, src, dst);
 590                 return (1);
 591
 592         case ETHERTYPE_PPP:
 593                 if (length) {
 594                         ND_PRINT(": ");
 595                         ppp_print(ndo, p, length);
 596                 }
 597                 return (1);
 598
 599         case ETHERTYPE_MPCP:
 600                 mpcp_print(ndo, p, length);
 601                 return (1);
 602
 603         case ETHERTYPE_SLOW:
 604                 slow_print(ndo, p, length);
 605                 return (1);
 606
 607         case ETHERTYPE_CFM:
 608         case ETHERTYPE_CFM_OLD:
 609                 cfm_print(ndo, p, length);
 610                 return (1);
 611
 612         case ETHERTYPE_LLDP:
 613                 lldp_print(ndo, p, length);
 614                 return (1);
 615
 616         case ETHERTYPE_NSH:
 617                 nsh_print(ndo, p, length);
 618                 return (1);
 619
 620         case ETHERTYPE_LOOPBACK:
 621                 loopback_print(ndo, p, length);
 622                 return (1);
 623
 624         case ETHERTYPE_MPLS:
 625         case ETHERTYPE_MPLS_MULTI:
 626                 mpls_print(ndo, p, length);
 627                 return (1);
 628
 629         case ETHERTYPE_TIPC:
 630                 tipc_print(ndo, p, length, caplen);
 631                 return (1);
 632
 633         case ETHERTYPE_MS_NLB_HB:
 634                 msnlb_print(ndo, p);
 635                 return (1);
 636
 637         case ETHERTYPE_GEONET_OLD:
 638         case ETHERTYPE_GEONET:
 639                 geonet_print(ndo, p, length, src);
 640                 return (1);
 641
 642         case ETHERTYPE_CALM_FAST:
 643                 calm_fast_print(ndo, p, length, src);
 644                 return (1);
 645
 646         case ETHERTYPE_AOE:
 647                 aoe_print(ndo, p, length);
 648                 return (1);
 649
 650         case ETHERTYPE_PTP:
 651                 ptp_print(ndo, p, length);
 652                 return (1);
 653
 654         case ETHERTYPE_LAT:
 655         case ETHERTYPE_SCA:
 656         case ETHERTYPE_MOPRC:
 657         case ETHERTYPE_MOPDL:
 658         case ETHERTYPE_IEEE1905_1:
 659                 /* default_print for now */
 660         default:
 661                 return (0);
 662         }
 663 }