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 void
 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, u_int do_incr_ll_hdr_len)
 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                 if (do_incr_ll_hdr_len)
 155                         ndo->ndo_ll_hdr_len += caplen;
 156                 return;
 157         }
 158         if (length < ETHER_HDRLEN + switch_tag_len) {
 159                 nd_print_trunc(ndo);
 160                 if (do_incr_ll_hdr_len)
 161                         ndo->ndo_ll_hdr_len += length;
 162                 return;
 163         }
 164
 165         if (print_encap_header != NULL)
 166                 (*print_encap_header)(ndo, encap_header_arg);
 167
 168         orig_length = length;
 169
 170         /*
 171          * Get the source and destination addresses, skip past them,
 172          * and print them if we're printing the link-layer header.
 173          */
 174         ehp = (const struct ether_header *)p;
 175         src.addr = ehp->ether_shost;
 176         src.addr_string = etheraddr_string;
 177         dst.addr = ehp->ether_dhost;
 178         dst.addr_string = etheraddr_string;
 179
 180         length -= 2*MAC_ADDR_LEN;
 181         caplen -= 2*MAC_ADDR_LEN;
 182         p += 2*MAC_ADDR_LEN;
 183         hdrlen = 2*MAC_ADDR_LEN;
 184
 185         if (ndo->ndo_eflag)
 186                 ether_addresses_print(ndo, src.addr, dst.addr);
 187
 188         /*
 189          * Print the switch tag, if we have one, and skip past it.
 190          */
 191         if (print_switch_tag != NULL)
 192                 (*print_switch_tag)(ndo, p);
 193
 194         length -= switch_tag_len;
 195         caplen -= switch_tag_len;
 196         p += switch_tag_len;
 197         hdrlen += switch_tag_len;
 198
 199         /*
 200          * Get the length/type field, skip past it, and print it
 201          * if we're printing the link-layer header.
 202          */
 203 recurse:
 204         length_type = GET_BE_U_2(p);
 205
 206         length -= 2;
 207         caplen -= 2;
 208         p += 2;
 209         hdrlen += 2;
 210
 211         /*
 212          * Process 802.1AE MACsec headers.
 213          */
 214         printed_length = 0;
 215         if (length_type == ETHERTYPE_MACSEC) {
 216                 /*
 217                  * MACsec, aka IEEE 802.1AE-2006
 218                  * Print the header, and try to print the payload if it's not encrypted
 219                  */
 220                 if (ndo->ndo_eflag) {
 221                         ether_type_print(ndo, length_type);
 222                         ND_PRINT(", length %u: ", orig_length);
 223                         printed_length = 1;
 224                 }
 225
 226                 int ret = macsec_print(ndo, &p, &length, &caplen, &hdrlen,
 227                     &src, &dst);
 228
 229                 if (ret == 0) {
 230                         /* Payload is encrypted; print it as raw data. */
 231                         if (!ndo->ndo_suppress_default_print)
 232                                 ND_DEFAULTPRINT(p, caplen);
 233                         if (do_incr_ll_hdr_len)
 234                                 ndo->ndo_ll_hdr_len += hdrlen;
 235                         return;
 236                 } else if (ret > 0) {
 237                         /* Problem printing the header; just quit. */
 238                         if (do_incr_ll_hdr_len)
 239                                 ndo->ndo_ll_hdr_len += ret;
 240                         return;
 241                 } else {
 242                         /*
 243                          * Keep processing type/length fields.
 244                          */
 245                         length_type = GET_BE_U_2(p);
 246
 247                         length -= 2;
 248                         caplen -= 2;
 249                         p += 2;
 250                         hdrlen += 2;
 251                 }
 252         }
 253
 254         /*
 255          * Process VLAN tag types.
 256          */
 257         while (length_type == ETHERTYPE_8021Q  ||
 258                 length_type == ETHERTYPE_8021Q9100 ||
 259                 length_type == ETHERTYPE_8021Q9200 ||
 260                 length_type == ETHERTYPE_8021QinQ) {
 261                 /*
 262                  * It has a VLAN tag.
 263                  * Print VLAN information, and then go back and process
 264                  * the enclosed type field.
 265                  */
 266                 if (caplen < 4) {
 267                         ndo->ndo_protocol = "vlan";
 268                         nd_print_trunc(ndo);
 269                         if (do_incr_ll_hdr_len)
 270                                 ndo->ndo_ll_hdr_len += hdrlen + caplen;
 271                         return;
 272                 }
 273                 if (length < 4) {
 274                         ndo->ndo_protocol = "vlan";
 275                         nd_print_trunc(ndo);
 276                         if (do_incr_ll_hdr_len)
 277                                 ndo->ndo_ll_hdr_len += hdrlen + length;
 278                         return;
 279                 }
 280                 if (ndo->ndo_eflag) {
 281                         uint16_t tag = GET_BE_U_2(p);
 282
 283                         ether_type_print(ndo, length_type);
 284                         if (!printed_length) {
 285                                 ND_PRINT(", length %u: ", orig_length);
 286                                 printed_length = 1;
 287                         } else
 288                                 ND_PRINT(", ");
 289                         ND_PRINT("%s, ", ieee8021q_tci_string(tag));
 290                 }
 291
 292                 length_type = GET_BE_U_2(p + 2);
 293                 p += 4;
 294                 length -= 4;
 295                 caplen -= 4;
 296                 hdrlen += 4;
 297         }
 298
 299         /*
 300          * We now have the final length/type field.
 301          */
 302         if (length_type <= MAX_ETHERNET_LENGTH_VAL) {
 303                 /*
 304                  * It's a length field, containing the length of the
 305                  * remaining payload; use it as such, as long as
 306                  * it's not too large (bigger than the actual payload).
 307                  */
 308                 if (length_type < length) {
 309                         length = length_type;
 310                         if (caplen > length)
 311                                 caplen = length;
 312                 }
 313
 314                 /*
 315                  * Cut off the snapshot length to the end of the
 316                  * payload.
 317                  */
 318                 nd_push_snapend(ndo, p + length);
 319
 320                 if (ndo->ndo_eflag) {
 321                         ND_PRINT("802.3");
 322                         if (!printed_length)
 323                                 ND_PRINT(", length %u: ", length);
 324                 }
 325
 326                 /*
 327                  * An LLC header follows the length.  Print that and
 328                  * higher layers.
 329                  */
 330                 llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
 331                 if (llc_hdrlen < 0) {
 332                         /* packet type not known, print raw packet */
 333                         if (!ndo->ndo_suppress_default_print)
 334                                 ND_DEFAULTPRINT(p, caplen);
 335                         llc_hdrlen = -llc_hdrlen;
 336                 }
 337                 hdrlen += llc_hdrlen;
 338                 nd_pop_packet_info(ndo);
 339         } else if (length_type == ETHERTYPE_JUMBO) {
 340                 /*
 341                  * It's a type field, with the type for Alteon jumbo frames.
 342                  * See
 343                  *
 344                  *      https://tools.ietf.org/html/draft-ietf-isis-ext-eth-01
 345                  *
 346                  * which indicates that, following the type field,
 347                  * there's an LLC header and payload.
 348                  */
 349                 /* Try to print the LLC-layer header & higher layers */
 350                 llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
 351                 if (llc_hdrlen < 0) {
 352                         /* packet type not known, print raw packet */
 353                         if (!ndo->ndo_suppress_default_print)
 354                                 ND_DEFAULTPRINT(p, caplen);
 355                         llc_hdrlen = -llc_hdrlen;
 356                 }
 357                 hdrlen += llc_hdrlen;
 358         } else if (length_type == ETHERTYPE_ARISTA) {
 359                 if (caplen < 2) {
 360                         ND_PRINT("[|arista]");
 361                         if (do_incr_ll_hdr_len)
 362                                 ndo->ndo_ll_hdr_len += hdrlen + caplen;
 363                         return;
 364                 }
 365                 if (length < 2) {
 366                         ND_PRINT("[|arista]");
 367                         if (do_incr_ll_hdr_len)
 368                                 ndo->ndo_ll_hdr_len += hdrlen + length;
 369                         return;
 370                 }
 371                 ether_type_print(ndo, length_type);
 372                 ND_PRINT(", length %u: ", orig_length);
 373                 int bytesConsumed = arista_ethertype_print(ndo, p, length);
 374                 if (bytesConsumed > 0) {
 375                         p += bytesConsumed;
 376                         length -= bytesConsumed;
 377                         caplen -= bytesConsumed;
 378                         hdrlen += bytesConsumed;
 379                         goto recurse;
 380                 } else {
 381                         /* subtype/version not known, print raw packet */
 382                         if (!ndo->ndo_eflag && length_type > MAX_ETHERNET_LENGTH_VAL) {
 383                                 ether_addresses_print(ndo, src.addr, dst.addr);
 384                                 ether_type_print(ndo, length_type);
 385                                 ND_PRINT(", length %u: ", orig_length);
 386                         }
 387                          if (!ndo->ndo_suppress_default_print)
 388                                  ND_DEFAULTPRINT(p, caplen);
 389                 }
 390         } else {
 391                 /*
 392                  * It's a type field with some other value.
 393                  */
 394                 if (ndo->ndo_eflag) {
 395                         ether_type_print(ndo, length_type);
 396                         if (!printed_length)
 397                                 ND_PRINT(", length %u: ", orig_length);
 398                         else
 399                                 ND_PRINT(", ");
 400                 }
 401                 if (ethertype_print(ndo, length_type, p, length, caplen, &src, &dst) == 0) {
 402                         /* type not known, print raw packet */
 403                         if (!ndo->ndo_eflag) {
 404                                 /*
 405                                  * We didn't print the full link-layer
 406                                  * header, as -e wasn't specified, so
 407                                  * print only the source and destination
 408                                  * MAC addresses and the final Ethernet
 409                                  * type.
 410                                  */
 411                                 ether_addresses_print(ndo, src.addr, dst.addr);
 412                                 ether_type_print(ndo, length_type);
 413                                 ND_PRINT(", length %u: ", orig_length);
 414                         }
 415
 416                         if (!ndo->ndo_suppress_default_print)
 417                                 ND_DEFAULTPRINT(p, caplen);
 418                 }
 419         }
 420         if (do_incr_ll_hdr_len)
 421                 ndo->ndo_ll_hdr_len += hdrlen;
 422         return;
 423 }
 424
 425 /*
 426  * Print an Ethernet frame while specyfing a non-standard Ethernet header
 427  * length.
 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 void
 435 ether_switch_tag_print(netdissect_options *ndo, const u_char *p, u_int length,
 436     u_int caplen,
 437     void (*print_switch_tag)(netdissect_options *, const u_char *),
 438     u_int switch_tag_len, u_int do_incr_ll_hdr_len)
 439 {
 440         ether_common_print(ndo, p, length, caplen, print_switch_tag,
 441                            switch_tag_len, NULL, NULL, do_incr_ll_hdr_len);
 442 }
 443
 444 /*
 445  * Print an Ethernet frame.
 446  * This might be encapsulated within another frame; we might be passed
 447  * a pointer to a function that can print header information for that
 448  * frame's protocol, and an argument to pass to that function.
 449  *
 450  * FIXME: caplen can and should be derived from ndo->ndo_snapend and p.
 451  */
 452 void
 453 ether_print(netdissect_options *ndo,
 454             const u_char *p, u_int length, u_int caplen,
 455             void (*print_encap_header)(netdissect_options *ndo, const u_char *),
 456             const u_char *encap_header_arg, u_int do_incr_ll_hdr_len)
 457 {
 458         ndo->ndo_protocol = "ether";
 459         ether_common_print(ndo, p, length, caplen, NULL, 0,
 460                            print_encap_header, encap_header_arg, do_incr_ll_hdr_len);
 461 }
 462
 463 /*
 464  * This is the top level routine of the printer.  'p' points
 465  * to the ether header of the packet, 'h->len' is the length
 466  * of the packet off the wire, and 'h->caplen' is the number
 467  * of bytes actually captured.
 468  */
 469 void
 470 ether_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h,
 471                const u_char *p)
 472 {
 473         ndo->ndo_protocol = "ether";
 474         ndo->ndo_ll_hdr_len += 0;
 475
 476         ether_print(ndo, p, h->len, h->caplen, NULL, NULL, TRUE);
 477 }
 478
 479 /*
 480  * This is the top level routine of the printer.  'p' points
 481  * to the ether header of the packet, 'h->len' is the length
 482  * of the packet off the wire, and 'h->caplen' is the number
 483  * of bytes actually captured.
 484  *
 485  * This is for DLT_NETANALYZER, which has a 4-byte pseudo-header
 486  * before the Ethernet header.
 487  */
 488 void
 489 netanalyzer_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h,
 490                      const u_char *p)
 491 {
 492         /*
 493          * Fail if we don't have enough data for the Hilscher pseudo-header.
 494          */
 495         ndo->ndo_protocol = "netanalyzer";
 496         if (h->caplen < 4) {
 497                 ndo->ndo_ll_hdr_len += h->caplen;
 498                 nd_print_trunc(ndo);
 499                 return;
 500         }
 501         ndo->ndo_ll_hdr_len += 4;
 502
 503         /* Skip the pseudo-header. */
 504         ether_print(ndo, p + 4, h->len - 4, h->caplen - 4, NULL, NULL, TRUE);
 505 }
 506
 507 /*
 508  * This is the top level routine of the printer.  'p' points
 509  * to the ether header of the packet, 'h->len' is the length
 510  * of the packet off the wire, and 'h->caplen' is the number
 511  * of bytes actually captured.
 512  *
 513  * This is for DLT_NETANALYZER_TRANSPARENT, which has a 4-byte
 514  * pseudo-header, a 7-byte Ethernet preamble, and a 1-byte Ethernet SOF
 515  * before the Ethernet header.
 516  */
 517 void
 518 netanalyzer_transparent_if_print(netdissect_options *ndo,
 519                                  const struct pcap_pkthdr *h,
 520                                  const u_char *p)
 521 {
 522         /*
 523          * Fail if we don't have enough data for the Hilscher pseudo-header,
 524          * preamble, and SOF.
 525          */
 526         ndo->ndo_protocol = "netanalyzer_transparent";
 527         if (h->caplen < 12) {
 528                 ndo->ndo_ll_hdr_len += h->caplen;
 529                 nd_print_trunc(ndo);
 530                 return;
 531         }
 532         ndo->ndo_ll_hdr_len += 12;
 533
 534         /* Skip the pseudo-header, preamble, and SOF. */
 535         ether_print(ndo, p + 12, h->len - 12, h->caplen - 12, NULL, NULL, TRUE);
 536 }
 537
 538 /*
 539  * Prints the packet payload, given an Ethernet type code for the payload's
 540  * protocol.
 541  *
 542  * Returns non-zero if it can do so, zero if the ethertype is unknown.
 543  */
 544
 545 int
 546 ethertype_print(netdissect_options *ndo,
 547                 u_short ether_type, const u_char *p,
 548                 u_int length, u_int caplen,
 549                 const struct lladdr_info *src, const struct lladdr_info *dst)
 550 {
 551         switch (ether_type) {
 552
 553         case ETHERTYPE_IP:
 554                 ip_print(ndo, p, length);
 555                 return (1);
 556
 557         case ETHERTYPE_IPV6:
 558                 ip6_print(ndo, p, length);
 559                 return (1);
 560
 561         case ETHERTYPE_ARP:
 562         case ETHERTYPE_REVARP:
 563                 arp_print(ndo, p, length, caplen);
 564                 return (1);
 565
 566         case ETHERTYPE_DN:
 567                 decnet_print(ndo, p, length, caplen);
 568                 return (1);
 569
 570         case ETHERTYPE_ATALK:
 571                 if (ndo->ndo_vflag)
 572                         ND_PRINT("et1 ");
 573                 atalk_print(ndo, p, length);
 574                 return (1);
 575
 576         case ETHERTYPE_AARP:
 577                 aarp_print(ndo, p, length);
 578                 return (1);
 579
 580         case ETHERTYPE_IPX:
 581                 ND_PRINT("(NOV-ETHII) ");
 582                 ipx_print(ndo, p, length);
 583                 return (1);
 584
 585         case ETHERTYPE_ISO:
 586                 if (length == 0 || caplen == 0) {
 587                         ndo->ndo_protocol = "isoclns";
 588                         nd_print_trunc(ndo);
 589                         return (1);
 590                 }
 591                 isoclns_print(ndo, p + 1, length - 1);
 592                 return(1);
 593
 594         case ETHERTYPE_PPPOED:
 595         case ETHERTYPE_PPPOES:
 596         case ETHERTYPE_PPPOED2:
 597         case ETHERTYPE_PPPOES2:
 598                 pppoe_print(ndo, p, length);
 599                 return (1);
 600
 601         case ETHERTYPE_EAPOL:
 602                 eapol_print(ndo, p);
 603                 return (1);
 604
 605         case ETHERTYPE_RRCP:
 606                 rrcp_print(ndo, p, length, src, dst);
 607                 return (1);
 608
 609         case ETHERTYPE_PPP:
 610                 if (length) {
 611                         ND_PRINT(": ");
 612                         ppp_print(ndo, p, length);
 613                 }
 614                 return (1);
 615
 616         case ETHERTYPE_MPCP:
 617                 mpcp_print(ndo, p, length);
 618                 return (1);
 619
 620         case ETHERTYPE_SLOW:
 621                 slow_print(ndo, p, length);
 622                 return (1);
 623
 624         case ETHERTYPE_CFM:
 625         case ETHERTYPE_CFM_OLD:
 626                 cfm_print(ndo, p, length);
 627                 return (1);
 628
 629         case ETHERTYPE_LLDP:
 630                 lldp_print(ndo, p, length);
 631                 return (1);
 632
 633         case ETHERTYPE_NSH:
 634                 nsh_print(ndo, p, length);
 635                 return (1);
 636
 637         case ETHERTYPE_LOOPBACK:
 638                 loopback_print(ndo, p, length);
 639                 return (1);
 640
 641         case ETHERTYPE_MPLS:
 642         case ETHERTYPE_MPLS_MULTI:
 643                 mpls_print(ndo, p, length);
 644                 return (1);
 645
 646         case ETHERTYPE_TIPC:
 647                 tipc_print(ndo, p, length, caplen);
 648                 return (1);
 649
 650         case ETHERTYPE_MS_NLB_HB:
 651                 msnlb_print(ndo, p);
 652                 return (1);
 653
 654         case ETHERTYPE_GEONET_OLD:
 655         case ETHERTYPE_GEONET:
 656                 geonet_print(ndo, p, length, src);
 657                 return (1);
 658
 659         case ETHERTYPE_CALM_FAST:
 660                 calm_fast_print(ndo, p, length, src);
 661                 return (1);
 662
 663         case ETHERTYPE_AOE:
 664                 aoe_print(ndo, p, length);
 665                 return (1);
 666
 667         case ETHERTYPE_PTP:
 668                 ptp_print(ndo, p, length);
 669                 return (1);
 670
 671         case ETHERTYPE_LAT:
 672         case ETHERTYPE_SCA:
 673         case ETHERTYPE_MOPRC:
 674         case ETHERTYPE_MOPDL:
 675         case ETHERTYPE_IEEE1905_1:
 676                 /* default_print for now */
 677         default:
 678                 return (0);
 679         }
 680 }