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
 224                 if (ret == 0) {
 225                         /* Payload is encrypted; print it as raw data. */
 226                         if (!ndo->ndo_eflag) {
 227                                 ether_type_print(ndo, length_type);
 228                                 ND_PRINT(", length %u: ", orig_length);
 229                         }
 230                         if (!ndo->ndo_suppress_default_print)
 231                                 ND_DEFAULTPRINT(p, caplen);
 232                         return (hdrlen);
 233                 } else if (ret > 0) {
 234                         /* Problem printing the header; just quit. */
 235                         return (ret);
 236                 } else {
 237                         /*
 238                          * Keep processing type/length fields.
 239                          */
 240                         length_type = GET_BE_U_2(p);
 241
 242                         length -= 2;
 243                         caplen -= 2;
 244                         p += 2;
 245                         hdrlen += 2;
 246                 }
 247         }
 248
 249         /*
 250          * Process VLAN tag types.
 251          */
 252         while (length_type == ETHERTYPE_8021Q  ||
 253                 length_type == ETHERTYPE_8021Q9100 ||
 254                 length_type == ETHERTYPE_8021Q9200 ||
 255                 length_type == ETHERTYPE_8021QinQ) {
 256                 /*
 257                  * It has a VLAN tag.
 258                  * Print VLAN information, and then go back and process
 259                  * the enclosed type field.
 260                  */
 261                 if (caplen < 4) {
 262                         ndo->ndo_protocol = "vlan";
 263                         nd_print_trunc(ndo);
 264                         return (hdrlen + caplen);
 265                 }
 266                 if (length < 4) {
 267                         ndo->ndo_protocol = "vlan";
 268                         nd_print_trunc(ndo);
 269                         return (hdrlen + length);
 270                 }
 271                 if (ndo->ndo_eflag) {
 272                         uint16_t tag = GET_BE_U_2(p);
 273
 274                         ether_type_print(ndo, length_type);
 275                         if (!printed_length) {
 276                                 ND_PRINT(", length %u: ", orig_length);
 277                                 printed_length = 1;
 278                         } else
 279                                 ND_PRINT(", ");
 280                         ND_PRINT("%s, ", ieee8021q_tci_string(tag));
 281                 }
 282
 283                 length_type = GET_BE_U_2(p + 2);
 284                 p += 4;
 285                 length -= 4;
 286                 caplen -= 4;
 287                 hdrlen += 4;
 288         }
 289
 290         /*
 291          * We now have the final length/type field.
 292          */
 293         if (length_type <= MAX_ETHERNET_LENGTH_VAL) {
 294                 /*
 295                  * It's a length field, containing the length of the
 296                  * remaining payload; use it as such, as long as
 297                  * it's not too large (bigger than the actual payload).
 298                  */
 299                 if (length_type < length) {
 300                         length = length_type;
 301                         if (caplen > length)
 302                                 caplen = length;
 303                 }
 304
 305                 /*
 306                  * Cut off the snapshot length to the end of the
 307                  * payload.
 308                  */
 309                 nd_push_snapend(ndo, p + length);
 310
 311                 if (ndo->ndo_eflag) {
 312                         ND_PRINT("802.3");
 313                         if (!printed_length)
 314                                 ND_PRINT(", length %u: ", length);
 315                 }
 316
 317                 /*
 318                  * An LLC header follows the length.  Print that and
 319                  * higher layers.
 320                  */
 321                 llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
 322                 if (llc_hdrlen < 0) {
 323                         /* packet type not known, print raw packet */
 324                         if (!ndo->ndo_suppress_default_print)
 325                                 ND_DEFAULTPRINT(p, caplen);
 326                         llc_hdrlen = -llc_hdrlen;
 327                 }
 328                 hdrlen += llc_hdrlen;
 329                 nd_pop_packet_info(ndo);
 330         } else if (length_type == ETHERTYPE_JUMBO) {
 331                 /*
 332                  * It's a type field, with the type for Alteon jumbo frames.
 333                  * See
 334                  *
 335                  *      https://tools.ietf.org/html/draft-ietf-isis-ext-eth-01
 336                  *
 337                  * which indicates that, following the type field,
 338                  * there's an LLC header and payload.
 339                  */
 340                 /* Try to print the LLC-layer header & higher layers */
 341                 llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
 342                 if (llc_hdrlen < 0) {
 343                         /* packet type not known, print raw packet */
 344                         if (!ndo->ndo_suppress_default_print)
 345                                 ND_DEFAULTPRINT(p, caplen);
 346                         llc_hdrlen = -llc_hdrlen;
 347                 }
 348                 hdrlen += llc_hdrlen;
 349         } else if (length_type == ETHERTYPE_ARISTA) {
 350                 if (caplen < 2) {
 351                         ND_PRINT("[|arista]");
 352                         return (hdrlen + caplen);
 353                 }
 354                 if (length < 2) {
 355                         ND_PRINT("[|arista]");
 356                         return (hdrlen + length);
 357                 }
 358                 ether_type_print(ndo, length_type);
 359                 ND_PRINT(", length %u: ", orig_length);
 360                 int bytesConsumed = arista_ethertype_print(ndo, p, length);
 361                 if (bytesConsumed > 0) {
 362                         p += bytesConsumed;
 363                         length -= bytesConsumed;
 364                         caplen -= bytesConsumed;
 365                         hdrlen += bytesConsumed;
 366                         goto recurse;
 367                 } else {
 368                         /* subtype/version not known, print raw packet */
 369                         if (!ndo->ndo_eflag && length_type > MAX_ETHERNET_LENGTH_VAL) {
 370                                 ether_addresses_print(ndo, src.addr, dst.addr);
 371                                 ether_type_print(ndo, length_type);
 372                                 ND_PRINT(", length %u: ", orig_length);
 373                         }
 374                          if (!ndo->ndo_suppress_default_print)
 375                                  ND_DEFAULTPRINT(p, caplen);
 376                 }
 377         } else {
 378                 /*
 379                  * It's a type field with some other value.
 380                  */
 381                 if (ndo->ndo_eflag) {
 382                         ether_type_print(ndo, length_type);
 383                         if (!printed_length)
 384                                 ND_PRINT(", length %u: ", orig_length);
 385                         else
 386                                 ND_PRINT(", ");
 387                 }
 388                 if (ethertype_print(ndo, length_type, p, length, caplen, &src, &dst) == 0) {
 389                         /* type not known, print raw packet */
 390                         if (!ndo->ndo_eflag) {
 391                                 /*
 392                                  * We didn't print the full link-layer
 393                                  * header, as -e wasn't specified, so
 394                                  * print only the source and destination
 395                                  * MAC addresses and the final Ethernet
 396                                  * type.
 397                                  */
 398                                 ether_addresses_print(ndo, src.addr, dst.addr);
 399                                 ether_type_print(ndo, length_type);
 400                                 ND_PRINT(", length %u: ", orig_length);
 401                         }
 402
 403                         if (!ndo->ndo_suppress_default_print)
 404                                 ND_DEFAULTPRINT(p, caplen);
 405                 }
 406         }
 407         return (hdrlen);
 408 }
 409
 410 /*
 411  * Print an Ethernet frame while specyfing a non-standard Ethernet header
 412  * length.
 413  * This might be encapsulated within another frame; we might be passed
 414  * a pointer to a function that can print header information for that
 415  * frame's protocol, and an argument to pass to that function.
 416  *
 417  * FIXME: caplen can and should be derived from ndo->ndo_snapend and p.
 418  */
 419 u_int
 420 ether_switch_tag_print(netdissect_options *ndo, const u_char *p, u_int length,
 421     u_int caplen,
 422     void (*print_switch_tag)(netdissect_options *, const u_char *),
 423     u_int switch_tag_len)
 424 {
 425         return (ether_common_print(ndo, p, length, caplen, print_switch_tag,
 426                                    switch_tag_len, NULL, NULL));
 427 }
 428
 429 /*
 430  * Print an Ethernet frame.
 431  * This might be encapsulated within another frame; we might be passed
 432  * a pointer to a function that can print header information for that
 433  * frame's protocol, and an argument to pass to that function.
 434  *
 435  * FIXME: caplen can and should be derived from ndo->ndo_snapend and p.
 436  */
 437 u_int
 438 ether_print(netdissect_options *ndo,
 439             const u_char *p, u_int length, u_int caplen,
 440             void (*print_encap_header)(netdissect_options *ndo, const u_char *),
 441             const u_char *encap_header_arg)
 442 {
 443         ndo->ndo_protocol = "ether";
 444         return (ether_common_print(ndo, p, length, caplen, NULL, 0,
 445                                    print_encap_header, encap_header_arg));
 446 }
 447
 448 /*
 449  * This is the top level routine of the printer.  'p' points
 450  * to the ether header of the packet, 'h->len' is the length
 451  * of the packet off the wire, and 'h->caplen' is the number
 452  * of bytes actually captured.
 453  */
 454 u_int
 455 ether_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h,
 456                const u_char *p)
 457 {
 458         ndo->ndo_protocol = "ether_if";
 459         return (ether_print(ndo, p, h->len, h->caplen, NULL, NULL));
 460 }
 461
 462 /*
 463  * This is the top level routine of the printer.  'p' points
 464  * to the ether header of the packet, 'h->len' is the length
 465  * of the packet off the wire, and 'h->caplen' is the number
 466  * of bytes actually captured.
 467  *
 468  * This is for DLT_NETANALYZER, which has a 4-byte pseudo-header
 469  * before the Ethernet header.
 470  */
 471 u_int
 472 netanalyzer_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h,
 473                      const u_char *p)
 474 {
 475         /*
 476          * Fail if we don't have enough data for the Hilscher pseudo-header.
 477          */
 478         ndo->ndo_protocol = "netanalyzer_if";
 479         if (h->caplen < 4) {
 480                 nd_print_trunc(ndo);
 481                 return (h->caplen);
 482         }
 483
 484         /* Skip the pseudo-header. */
 485         return (4 + ether_print(ndo, p + 4, h->len - 4, h->caplen - 4, NULL, NULL));
 486 }
 487
 488 /*
 489  * This is the top level routine of the printer.  'p' points
 490  * to the ether header of the packet, 'h->len' is the length
 491  * of the packet off the wire, and 'h->caplen' is the number
 492  * of bytes actually captured.
 493  *
 494  * This is for DLT_NETANALYZER_TRANSPARENT, which has a 4-byte
 495  * pseudo-header, a 7-byte Ethernet preamble, and a 1-byte Ethernet SOF
 496  * before the Ethernet header.
 497  */
 498 u_int
 499 netanalyzer_transparent_if_print(netdissect_options *ndo,
 500                                  const struct pcap_pkthdr *h,
 501                                  const u_char *p)
 502 {
 503         /*
 504          * Fail if we don't have enough data for the Hilscher pseudo-header,
 505          * preamble, and SOF.
 506          */
 507         ndo->ndo_protocol = "netanalyzer_transparent_if";
 508         if (h->caplen < 12) {
 509                 nd_print_trunc(ndo);
 510                 return (h->caplen);
 511         }
 512
 513         /* Skip the pseudo-header, preamble, and SOF. */
 514         return (12 + ether_print(ndo, p + 12, h->len - 12, h->caplen - 12, NULL, NULL));
 515 }
 516
 517 /*
 518  * Prints the packet payload, given an Ethernet type code for the payload's
 519  * protocol.
 520  *
 521  * Returns non-zero if it can do so, zero if the ethertype is unknown.
 522  */
 523
 524 int
 525 ethertype_print(netdissect_options *ndo,
 526                 u_short ether_type, const u_char *p,
 527                 u_int length, u_int caplen,
 528                 const struct lladdr_info *src, const struct lladdr_info *dst)
 529 {
 530         switch (ether_type) {
 531
 532         case ETHERTYPE_IP:
 533                 ip_print(ndo, p, length);
 534                 return (1);
 535
 536         case ETHERTYPE_IPV6:
 537                 ip6_print(ndo, p, length);
 538                 return (1);
 539
 540         case ETHERTYPE_ARP:
 541         case ETHERTYPE_REVARP:
 542                 arp_print(ndo, p, length, caplen);
 543                 return (1);
 544
 545         case ETHERTYPE_DN:
 546                 decnet_print(ndo, p, length, caplen);
 547                 return (1);
 548
 549         case ETHERTYPE_ATALK:
 550                 if (ndo->ndo_vflag)
 551                         ND_PRINT("et1 ");
 552                 atalk_print(ndo, p, length);
 553                 return (1);
 554
 555         case ETHERTYPE_AARP:
 556                 aarp_print(ndo, p, length);
 557                 return (1);
 558
 559         case ETHERTYPE_IPX:
 560                 ND_PRINT("(NOV-ETHII) ");
 561                 ipx_print(ndo, p, length);
 562                 return (1);
 563
 564         case ETHERTYPE_ISO:
 565                 if (length == 0 || caplen == 0) {
 566                         ndo->ndo_protocol = "isoclns";
 567                         nd_print_trunc(ndo);
 568                         return (1);
 569                 }
 570                 isoclns_print(ndo, p + 1, length - 1);
 571                 return(1);
 572
 573         case ETHERTYPE_PPPOED:
 574         case ETHERTYPE_PPPOES:
 575         case ETHERTYPE_PPPOED2:
 576         case ETHERTYPE_PPPOES2:
 577                 pppoe_print(ndo, p, length);
 578                 return (1);
 579
 580         case ETHERTYPE_EAPOL:
 581                 eap_print(ndo, p, length);
 582                 return (1);
 583
 584         case ETHERTYPE_RRCP:
 585                 rrcp_print(ndo, p, length, src, dst);
 586                 return (1);
 587
 588         case ETHERTYPE_PPP:
 589                 if (length) {
 590                         ND_PRINT(": ");
 591                         ppp_print(ndo, p, length);
 592                 }
 593                 return (1);
 594
 595         case ETHERTYPE_MPCP:
 596                 mpcp_print(ndo, p, length);
 597                 return (1);
 598
 599         case ETHERTYPE_SLOW:
 600                 slow_print(ndo, p, length);
 601                 return (1);
 602
 603         case ETHERTYPE_CFM:
 604         case ETHERTYPE_CFM_OLD:
 605                 cfm_print(ndo, p, length);
 606                 return (1);
 607
 608         case ETHERTYPE_LLDP:
 609                 lldp_print(ndo, p, length);
 610                 return (1);
 611
 612         case ETHERTYPE_NSH:
 613                 nsh_print(ndo, p, length);
 614                 return (1);
 615
 616         case ETHERTYPE_LOOPBACK:
 617                 loopback_print(ndo, p, length);
 618                 return (1);
 619
 620         case ETHERTYPE_MPLS:
 621         case ETHERTYPE_MPLS_MULTI:
 622                 mpls_print(ndo, p, length);
 623                 return (1);
 624
 625         case ETHERTYPE_TIPC:
 626                 tipc_print(ndo, p, length, caplen);
 627                 return (1);
 628
 629         case ETHERTYPE_MS_NLB_HB:
 630                 msnlb_print(ndo, p);
 631                 return (1);
 632
 633         case ETHERTYPE_GEONET_OLD:
 634         case ETHERTYPE_GEONET:
 635                 geonet_print(ndo, p, length, src);
 636                 return (1);
 637
 638         case ETHERTYPE_CALM_FAST:
 639                 calm_fast_print(ndo, p, length, src);
 640                 return (1);
 641
 642         case ETHERTYPE_AOE:
 643                 aoe_print(ndo, p, length);
 644                 return (1);
 645
 646         case ETHERTYPE_PTP:
 647                 ptp_print(ndo, p, length);
 648                 return (1);
 649
 650         case ETHERTYPE_LAT:
 651         case ETHERTYPE_SCA:
 652         case ETHERTYPE_MOPRC:
 653         case ETHERTYPE_MOPDL:
 654         case ETHERTYPE_IEEE1905_1:
 655                 /* default_print for now */
 656         default:
 657                 return (0);
 658         }
 659 }