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         if (length_type == ETHERTYPE_MACSEC) {
 208                 /*
 209                  * MACsec, aka IEEE 802.1AE-2006
 210                  * Print the header, and try to print the payload if it's not encrypted
 211                  */
 212                 int ret = macsec_print(ndo, &p, &length, &caplen, &hdrlen, &length_type);
 213
 214                 if (ret == 0)
 215                         goto raw;
 216                 else if (ret > 0)
 217                         return ret;
 218         }
 219
 220         /*
 221          * Process VLAN tag types.
 222          */
 223         printed_length = 0;
 224         while (length_type == ETHERTYPE_8021Q  ||
 225                 length_type == ETHERTYPE_8021Q9100 ||
 226                 length_type == ETHERTYPE_8021Q9200 ||
 227                 length_type == ETHERTYPE_8021QinQ) {
 228                 /*
 229                  * It has a VLAN tag.
 230                  * Print VLAN information, and then go back and process
 231                  * the enclosed type field.
 232                  */
 233                 if (caplen < 4) {
 234                         ndo->ndo_protocol = "vlan";
 235                         nd_print_trunc(ndo);
 236                         return (hdrlen + caplen);
 237                 }
 238                 if (length < 4) {
 239                         ndo->ndo_protocol = "vlan";
 240                         nd_print_trunc(ndo);
 241                         return (hdrlen + length);
 242                 }
 243                 if (ndo->ndo_eflag) {
 244                         uint16_t tag = GET_BE_U_2(p);
 245
 246                         ether_type_print(ndo, length_type);
 247                         if (!printed_length) {
 248                                 ND_PRINT(", length %u: ", orig_length);
 249                                 printed_length = 1;
 250                         } else
 251                                 ND_PRINT(", ");
 252                         ND_PRINT("%s, ", ieee8021q_tci_string(tag));
 253                 }
 254
 255                 length_type = GET_BE_U_2(p + 2);
 256                 p += 4;
 257                 length -= 4;
 258                 caplen -= 4;
 259                 hdrlen += 4;
 260         }
 261
 262         /*
 263          * We now have the final length/type field.
 264          */
 265         if (length_type <= MAX_ETHERNET_LENGTH_VAL) {
 266                 /*
 267                  * It's a length field, containing the length of the
 268                  * remaining payload; use it as such, as long as
 269                  * it's not too large (bigger than the actual payload).
 270                  */
 271                 if (length_type < length) {
 272                         length = length_type;
 273                         if (caplen > length)
 274                                 caplen = length;
 275                 }
 276
 277                 /*
 278                  * Cut off the snapshot length to the end of the
 279                  * payload.
 280                  */
 281                 nd_push_snapend(ndo, p + length);
 282
 283                 if (ndo->ndo_eflag) {
 284                         ND_PRINT("802.3");
 285                         if (!printed_length)
 286                                 ND_PRINT(", length %u: ", length);
 287                 }
 288
 289                 /*
 290                  * An LLC header follows the length.  Print that and
 291                  * higher layers.
 292                  */
 293                 llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
 294                 if (llc_hdrlen < 0) {
 295                         /* packet type not known, print raw packet */
 296                         if (!ndo->ndo_suppress_default_print)
 297                                 ND_DEFAULTPRINT(p, caplen);
 298                         llc_hdrlen = -llc_hdrlen;
 299                 }
 300                 hdrlen += llc_hdrlen;
 301                 nd_pop_packet_info(ndo);
 302         } else if (length_type == ETHERTYPE_JUMBO) {
 303                 /*
 304                  * It's a type field, with the type for Alteon jumbo frames.
 305                  * See
 306                  *
 307                  *      https://tools.ietf.org/html/draft-ietf-isis-ext-eth-01
 308                  *
 309                  * which indicates that, following the type field,
 310                  * there's an LLC header and payload.
 311                  */
 312                 /* Try to print the LLC-layer header & higher layers */
 313                 llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
 314                 if (llc_hdrlen < 0) {
 315                         /* packet type not known, print raw packet */
 316                         if (!ndo->ndo_suppress_default_print)
 317                                 ND_DEFAULTPRINT(p, caplen);
 318                         llc_hdrlen = -llc_hdrlen;
 319                 }
 320                 hdrlen += llc_hdrlen;
 321         } else if (length_type == ETHERTYPE_ARISTA) {
 322                 if (caplen < 2) {
 323                         ND_PRINT("[|arista]");
 324                         return (hdrlen + caplen);
 325                 }
 326                 if (length < 2) {
 327                         ND_PRINT("[|arista]");
 328                         return (hdrlen + length);
 329                 }
 330                 ether_type_print(ndo, length_type);
 331                 ND_PRINT(", length %u: ", orig_length);
 332                 int bytesConsumed = arista_ethertype_print(ndo, p, length);
 333                 if (bytesConsumed > 0) {
 334                         p += bytesConsumed;
 335                         length -= bytesConsumed;
 336                         caplen -= bytesConsumed;
 337                         hdrlen += bytesConsumed;
 338                         goto recurse;
 339                 } else {
 340                         /* subtype/version not known, print raw packet */
 341                         if (!ndo->ndo_eflag && length_type > MAX_ETHERNET_LENGTH_VAL) {
 342                                 ether_addresses_print(ndo, src.addr, dst.addr);
 343                                 ether_type_print(ndo, length_type);
 344                                 ND_PRINT(", length %u: ", orig_length);
 345                         }
 346                          if (!ndo->ndo_suppress_default_print)
 347                                  ND_DEFAULTPRINT(p, caplen);
 348                 }
 349         } else {
 350                 /*
 351                  * It's a type field with some other value.
 352                  */
 353                 if (ndo->ndo_eflag) {
 354                         ether_type_print(ndo, length_type);
 355                         if (!printed_length)
 356                                 ND_PRINT(", length %u: ", orig_length);
 357                         else
 358                                 ND_PRINT(", ");
 359                 }
 360                 if (ethertype_print(ndo, length_type, p, length, caplen, &src, &dst) == 0) {
 361 raw:
 362                         /* type not known, print raw packet */
 363                         if (!ndo->ndo_eflag) {
 364                                 /*
 365                                  * We didn't print the full link-layer
 366                                  * header, as -e wasn't specified, so
 367                                  * print only the source and destination
 368                                  * MAC addresses and the final Ethernet
 369                                  * type.
 370                                  */
 371                                 ether_addresses_print(ndo, src.addr, dst.addr);
 372                                 ether_type_print(ndo, length_type);
 373                                 ND_PRINT(", length %u: ", orig_length);
 374                         }
 375
 376                         if (!ndo->ndo_suppress_default_print)
 377                                 ND_DEFAULTPRINT(p, caplen);
 378                 }
 379         }
 380         return (hdrlen);
 381 }
 382
 383 /*
 384  * Print an Ethernet frame while specyfing a non-standard Ethernet header
 385  * length.
 386  * This might be encapsulated within another frame; we might be passed
 387  * a pointer to a function that can print header information for that
 388  * frame's protocol, and an argument to pass to that function.
 389  *
 390  * FIXME: caplen can and should be derived from ndo->ndo_snapend and p.
 391  */
 392 u_int
 393 ether_switch_tag_print(netdissect_options *ndo, const u_char *p, u_int length,
 394     u_int caplen,
 395     void (*print_switch_tag)(netdissect_options *, const u_char *),
 396     u_int switch_tag_len)
 397 {
 398         return (ether_common_print(ndo, p, length, caplen, print_switch_tag,
 399                                    switch_tag_len, NULL, NULL));
 400 }
 401
 402 /*
 403  * Print an Ethernet frame.
 404  * This might be encapsulated within another frame; we might be passed
 405  * a pointer to a function that can print header information for that
 406  * frame's protocol, and an argument to pass to that function.
 407  *
 408  * FIXME: caplen can and should be derived from ndo->ndo_snapend and p.
 409  */
 410 u_int
 411 ether_print(netdissect_options *ndo,
 412             const u_char *p, u_int length, u_int caplen,
 413             void (*print_encap_header)(netdissect_options *ndo, const u_char *),
 414             const u_char *encap_header_arg)
 415 {
 416         ndo->ndo_protocol = "ether";
 417         return (ether_common_print(ndo, p, length, caplen, NULL, 0,
 418                                    print_encap_header, encap_header_arg));
 419 }
 420
 421 /*
 422  * This is the top level routine of the printer.  'p' points
 423  * to the ether header of the packet, 'h->len' is the length
 424  * of the packet off the wire, and 'h->caplen' is the number
 425  * of bytes actually captured.
 426  */
 427 u_int
 428 ether_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h,
 429                const u_char *p)
 430 {
 431         ndo->ndo_protocol = "ether_if";
 432         return (ether_print(ndo, p, h->len, h->caplen, NULL, NULL));
 433 }
 434
 435 /*
 436  * This is the top level routine of the printer.  'p' points
 437  * to the ether header of the packet, 'h->len' is the length
 438  * of the packet off the wire, and 'h->caplen' is the number
 439  * of bytes actually captured.
 440  *
 441  * This is for DLT_NETANALYZER, which has a 4-byte pseudo-header
 442  * before the Ethernet header.
 443  */
 444 u_int
 445 netanalyzer_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h,
 446                      const u_char *p)
 447 {
 448         /*
 449          * Fail if we don't have enough data for the Hilscher pseudo-header.
 450          */
 451         ndo->ndo_protocol = "netanalyzer_if";
 452         if (h->caplen < 4) {
 453                 nd_print_trunc(ndo);
 454                 return (h->caplen);
 455         }
 456
 457         /* Skip the pseudo-header. */
 458         return (4 + ether_print(ndo, p + 4, h->len - 4, h->caplen - 4, NULL, NULL));
 459 }
 460
 461 /*
 462  * This is the top level routine of the printer.  'p' points
 463  * to the ether header of the packet, 'h->len' is the length
 464  * of the packet off the wire, and 'h->caplen' is the number
 465  * of bytes actually captured.
 466  *
 467  * This is for DLT_NETANALYZER_TRANSPARENT, which has a 4-byte
 468  * pseudo-header, a 7-byte Ethernet preamble, and a 1-byte Ethernet SOF
 469  * before the Ethernet header.
 470  */
 471 u_int
 472 netanalyzer_transparent_if_print(netdissect_options *ndo,
 473                                  const struct pcap_pkthdr *h,
 474                                  const u_char *p)
 475 {
 476         /*
 477          * Fail if we don't have enough data for the Hilscher pseudo-header,
 478          * preamble, and SOF.
 479          */
 480         ndo->ndo_protocol = "netanalyzer_transparent_if";
 481         if (h->caplen < 12) {
 482                 nd_print_trunc(ndo);
 483                 return (h->caplen);
 484         }
 485
 486         /* Skip the pseudo-header, preamble, and SOF. */
 487         return (12 + ether_print(ndo, p + 12, h->len - 12, h->caplen - 12, NULL, NULL));
 488 }
 489
 490 /*
 491  * Prints the packet payload, given an Ethernet type code for the payload's
 492  * protocol.
 493  *
 494  * Returns non-zero if it can do so, zero if the ethertype is unknown.
 495  */
 496
 497 int
 498 ethertype_print(netdissect_options *ndo,
 499                 u_short ether_type, const u_char *p,
 500                 u_int length, u_int caplen,
 501                 const struct lladdr_info *src, const struct lladdr_info *dst)
 502 {
 503         switch (ether_type) {
 504
 505         case ETHERTYPE_IP:
 506                 ip_print(ndo, p, length);
 507                 return (1);
 508
 509         case ETHERTYPE_IPV6:
 510                 ip6_print(ndo, p, length);
 511                 return (1);
 512
 513         case ETHERTYPE_ARP:
 514         case ETHERTYPE_REVARP:
 515                 arp_print(ndo, p, length, caplen);
 516                 return (1);
 517
 518         case ETHERTYPE_DN:
 519                 decnet_print(ndo, p, length, caplen);
 520                 return (1);
 521
 522         case ETHERTYPE_ATALK:
 523                 if (ndo->ndo_vflag)
 524                         ND_PRINT("et1 ");
 525                 atalk_print(ndo, p, length);
 526                 return (1);
 527
 528         case ETHERTYPE_AARP:
 529                 aarp_print(ndo, p, length);
 530                 return (1);
 531
 532         case ETHERTYPE_IPX:
 533                 ND_PRINT("(NOV-ETHII) ");
 534                 ipx_print(ndo, p, length);
 535                 return (1);
 536
 537         case ETHERTYPE_ISO:
 538                 if (length == 0 || caplen == 0) {
 539                         ndo->ndo_protocol = "isoclns";
 540                         nd_print_trunc(ndo);
 541                         return (1);
 542                 }
 543                 isoclns_print(ndo, p + 1, length - 1);
 544                 return(1);
 545
 546         case ETHERTYPE_PPPOED:
 547         case ETHERTYPE_PPPOES:
 548         case ETHERTYPE_PPPOED2:
 549         case ETHERTYPE_PPPOES2:
 550                 pppoe_print(ndo, p, length);
 551                 return (1);
 552
 553         case ETHERTYPE_EAPOL:
 554                 eap_print(ndo, p, length);
 555                 return (1);
 556
 557         case ETHERTYPE_RRCP:
 558                 rrcp_print(ndo, p, length, src, dst);
 559                 return (1);
 560
 561         case ETHERTYPE_PPP:
 562                 if (length) {
 563                         ND_PRINT(": ");
 564                         ppp_print(ndo, p, length);
 565                 }
 566                 return (1);
 567
 568         case ETHERTYPE_MPCP:
 569                 mpcp_print(ndo, p, length);
 570                 return (1);
 571
 572         case ETHERTYPE_SLOW:
 573                 slow_print(ndo, p, length);
 574                 return (1);
 575
 576         case ETHERTYPE_CFM:
 577         case ETHERTYPE_CFM_OLD:
 578                 cfm_print(ndo, p, length);
 579                 return (1);
 580
 581         case ETHERTYPE_LLDP:
 582                 lldp_print(ndo, p, length);
 583                 return (1);
 584
 585         case ETHERTYPE_NSH:
 586                 nsh_print(ndo, p, length);
 587                 return (1);
 588
 589         case ETHERTYPE_LOOPBACK:
 590                 loopback_print(ndo, p, length);
 591                 return (1);
 592
 593         case ETHERTYPE_MPLS:
 594         case ETHERTYPE_MPLS_MULTI:
 595                 mpls_print(ndo, p, length);
 596                 return (1);
 597
 598         case ETHERTYPE_TIPC:
 599                 tipc_print(ndo, p, length, caplen);
 600                 return (1);
 601
 602         case ETHERTYPE_MS_NLB_HB:
 603                 msnlb_print(ndo, p);
 604                 return (1);
 605
 606         case ETHERTYPE_GEONET_OLD:
 607         case ETHERTYPE_GEONET:
 608                 geonet_print(ndo, p, length, src);
 609                 return (1);
 610
 611         case ETHERTYPE_CALM_FAST:
 612                 calm_fast_print(ndo, p, length, src);
 613                 return (1);
 614
 615         case ETHERTYPE_AOE:
 616                 aoe_print(ndo, p, length);
 617                 return (1);
 618
 619         case ETHERTYPE_PTP:
 620                 ptp_print(ndo, p, length);
 621                 return (1);
 622
 623         case ETHERTYPE_LAT:
 624         case ETHERTYPE_SCA:
 625         case ETHERTYPE_MOPRC:
 626         case ETHERTYPE_MOPDL:
 627         case ETHERTYPE_IEEE1905_1:
 628                 /* default_print for now */
 629         default:
 630                 return (0);
 631         }
 632 }