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 #define ND_LONGJMP_FROM_TCHECK
  31 #include "netdissect.h"
  32 #include "extract.h"
  33 #include "addrtoname.h"
  34 #include "ethertype.h"
  35
  36 /*
  37  * Structure of an Ethernet header.
  38  */
  39 struct  ether_header {
  40         nd_mac_addr     ether_dhost;
  41         nd_mac_addr     ether_shost;
  42         nd_uint16_t     ether_length_type;
  43 };
  44
  45 /*
  46  * Length of an Ethernet header; note that some compilers may pad
  47  * "struct ether_header" to a multiple of 4 bytes, for example, so
  48  * "sizeof (struct ether_header)" may not give the right answer.
  49  */
  50 #define ETHER_HDRLEN            14
  51
  52 const struct tok ethertype_values[] = {
  53     { ETHERTYPE_IP,             "IPv4" },
  54     { ETHERTYPE_MPLS,           "MPLS unicast" },
  55     { ETHERTYPE_MPLS_MULTI,     "MPLS multicast" },
  56     { ETHERTYPE_IPV6,           "IPv6" },
  57     { ETHERTYPE_8021Q,          "802.1Q" },
  58     { ETHERTYPE_8021Q9100,      "802.1Q-9100" },
  59     { ETHERTYPE_8021QinQ,       "802.1Q-QinQ" },
  60     { ETHERTYPE_8021Q9200,      "802.1Q-9200" },
  61     { ETHERTYPE_MACSEC,         "802.1AE MACsec" },
  62     { ETHERTYPE_VMAN,           "VMAN" },
  63     { ETHERTYPE_PUP,            "PUP" },
  64     { ETHERTYPE_ARP,            "ARP"},
  65     { ETHERTYPE_REVARP,         "Reverse ARP"},
  66     { ETHERTYPE_NS,             "NS" },
  67     { ETHERTYPE_SPRITE,         "Sprite" },
  68     { ETHERTYPE_TRAIL,          "Trail" },
  69     { ETHERTYPE_MOPDL,          "MOP DL" },
  70     { ETHERTYPE_MOPRC,          "MOP RC" },
  71     { ETHERTYPE_DN,             "DN" },
  72     { ETHERTYPE_LAT,            "LAT" },
  73     { ETHERTYPE_SCA,            "SCA" },
  74     { ETHERTYPE_TEB,            "TEB" },
  75     { ETHERTYPE_LANBRIDGE,      "Lanbridge" },
  76     { ETHERTYPE_DECDNS,         "DEC DNS" },
  77     { ETHERTYPE_DECDTS,         "DEC DTS" },
  78     { ETHERTYPE_VEXP,           "VEXP" },
  79     { ETHERTYPE_VPROD,          "VPROD" },
  80     { ETHERTYPE_ATALK,          "Appletalk" },
  81     { ETHERTYPE_AARP,           "Appletalk ARP" },
  82     { ETHERTYPE_IPX,            "IPX" },
  83     { ETHERTYPE_PPP,            "PPP" },
  84     { ETHERTYPE_MPCP,           "MPCP" },
  85     { ETHERTYPE_SLOW,           "Slow Protocols" },
  86     { ETHERTYPE_PPPOED,         "PPPoE D" },
  87     { ETHERTYPE_PPPOES,         "PPPoE S" },
  88     { ETHERTYPE_EAPOL,          "EAPOL" },
  89     { ETHERTYPE_RRCP,           "RRCP" },
  90     { ETHERTYPE_MS_NLB_HB,      "MS NLB heartbeat" },
  91     { ETHERTYPE_JUMBO,          "Jumbo" },
  92     { ETHERTYPE_NSH,            "NSH" },
  93     { ETHERTYPE_LOOPBACK,       "Loopback" },
  94     { ETHERTYPE_ISO,            "OSI" },
  95     { ETHERTYPE_GRE_ISO,        "GRE-OSI" },
  96     { ETHERTYPE_CFM_OLD,        "CFM (old)" },
  97     { ETHERTYPE_CFM,            "CFM" },
  98     { ETHERTYPE_IEEE1905_1,     "IEEE1905.1" },
  99     { ETHERTYPE_LLDP,           "LLDP" },
 100     { ETHERTYPE_TIPC,           "TIPC"},
 101     { ETHERTYPE_GEONET_OLD,     "GeoNet (old)"},
 102     { ETHERTYPE_GEONET,         "GeoNet"},
 103     { ETHERTYPE_CALM_FAST,      "CALM FAST"},
 104     { ETHERTYPE_AOE,            "AoE" },
 105     { ETHERTYPE_PTP,            "PTP" },
 106     { ETHERTYPE_ARISTA,         "Arista Vendor Specific Protocol" },
 107     { 0, NULL}
 108 };
 109
 110 static void
 111 ether_addresses_print(netdissect_options *ndo, const u_char *src,
 112                       const u_char *dst)
 113 {
 114         ND_PRINT("%s > %s, ",
 115                  GET_ETHERADDR_STRING(src), GET_ETHERADDR_STRING(dst));
 116 }
 117
 118 static void
 119 ether_type_print(netdissect_options *ndo, uint16_t type)
 120 {
 121         if (!ndo->ndo_qflag)
 122                 ND_PRINT("ethertype %s (0x%04x)",
 123                          tok2str(ethertype_values, "Unknown", type), type);
 124         else
 125                 ND_PRINT("%s",
 126                          tok2str(ethertype_values, "Unknown Ethertype (0x%04x)", type));
 127 }
 128
 129 /*
 130  * Common code for printing Ethernet frames.
 131  *
 132  * It can handle Ethernet headers with extra tag information inserted
 133  * after the destination and source addresses, as is inserted by some
 134  * switch chips, and extra encapsulation header information before
 135  * printing Ethernet header information (such as a LANE ID for ATM LANE).
 136  */
 137 static u_int
 138 ether_common_print(netdissect_options *ndo, const u_char *p, u_int length,
 139     u_int caplen,
 140     void (*print_switch_tag)(netdissect_options *ndo, const u_char *),
 141     u_int switch_tag_len,
 142     void (*print_encap_header)(netdissect_options *ndo, const u_char *),
 143     const u_char *encap_header_arg)
 144 {
 145         const struct ether_header *ehp;
 146         u_int orig_length;
 147         u_int hdrlen;
 148         u_short length_type;
 149         int printed_length;
 150         int llc_hdrlen;
 151         struct lladdr_info src, dst;
 152
 153         if (length < caplen) {
 154                 ND_PRINT("[length %u < caplen %u]", length, caplen);
 155                 nd_print_invalid(ndo);
 156                 return length;
 157         }
 158         if (caplen < ETHER_HDRLEN + switch_tag_len) {
 159                 nd_print_trunc(ndo);
 160                 return caplen;
 161         }
 162
 163         if (print_encap_header != NULL)
 164                 (*print_encap_header)(ndo, encap_header_arg);
 165
 166         orig_length = length;
 167
 168         /*
 169          * Get the source and destination addresses, skip past them,
 170          * and print them if we're printing the link-layer header.
 171          */
 172         ehp = (const struct ether_header *)p;
 173         src.addr = ehp->ether_shost;
 174         src.addr_string = etheraddr_string;
 175         dst.addr = ehp->ether_dhost;
 176         dst.addr_string = etheraddr_string;
 177
 178         length -= 2*MAC_ADDR_LEN;
 179         caplen -= 2*MAC_ADDR_LEN;
 180         p += 2*MAC_ADDR_LEN;
 181         hdrlen = 2*MAC_ADDR_LEN;
 182
 183         if (ndo->ndo_eflag)
 184                 ether_addresses_print(ndo, src.addr, dst.addr);
 185
 186         /*
 187          * Print the switch tag, if we have one, and skip past it.
 188          */
 189         if (print_switch_tag != NULL)
 190                 (*print_switch_tag)(ndo, p);
 191
 192         length -= switch_tag_len;
 193         caplen -= switch_tag_len;
 194         p += switch_tag_len;
 195         hdrlen += switch_tag_len;
 196
 197         /*
 198          * Get the length/type field, skip past it, and print it
 199          * if we're printing the link-layer header.
 200          */
 201 recurse:
 202         length_type = GET_BE_U_2(p);
 203
 204         length -= 2;
 205         caplen -= 2;
 206         p += 2;
 207         hdrlen += 2;
 208
 209         /*
 210          * Process 802.1AE MACsec headers.
 211          */
 212         printed_length = 0;
 213         if (length_type == ETHERTYPE_MACSEC) {
 214                 /*
 215                  * MACsec, aka IEEE 802.1AE-2006
 216                  * Print the header, and try to print the payload if it's not encrypted
 217                  */
 218                 if (ndo->ndo_eflag) {
 219                         ether_type_print(ndo, length_type);
 220                         ND_PRINT(", length %u: ", orig_length);
 221                         printed_length = 1;
 222                 }
 223
 224                 int ret = macsec_print(ndo, &p, &length, &caplen, &hdrlen,
 225                     &src, &dst);
 226
 227                 if (ret == 0) {
 228                         /* Payload is encrypted; print it as raw data. */
 229                         if (!ndo->ndo_suppress_default_print)
 230                                 ND_DEFAULTPRINT(p, caplen);
 231                         return hdrlen;
 232                 } else if (ret > 0) {
 233                         /* Problem printing the header; just quit. */
 234                         return ret;
 235                 } else {
 236                         /*
 237                          * Keep processing type/length fields.
 238                          */
 239                         length_type = GET_BE_U_2(p);
 240
 241                         length -= 2;
 242                         caplen -= 2;
 243                         p += 2;
 244                         hdrlen += 2;
 245                 }
 246         }
 247
 248         /*
 249          * Process VLAN tag types.
 250          */
 251         while (length_type == ETHERTYPE_8021Q  ||
 252                 length_type == ETHERTYPE_8021Q9100 ||
 253                 length_type == ETHERTYPE_8021Q9200 ||
 254                 length_type == ETHERTYPE_8021QinQ) {
 255                 /*
 256                  * It has a VLAN tag.
 257                  * Print VLAN information, and then go back and process
 258                  * the enclosed type field.
 259                  */
 260                 if (caplen < 4) {
 261                         ndo->ndo_protocol = "vlan";
 262                         nd_print_trunc(ndo);
 263                         return hdrlen + caplen;
 264                 }
 265                 if (length < 4) {
 266                         ndo->ndo_protocol = "vlan";
 267                         nd_print_trunc(ndo);
 268                         return hdrlen + length;
 269                 }
 270                 if (ndo->ndo_eflag) {
 271                         uint16_t tag = GET_BE_U_2(p);
 272
 273                         ether_type_print(ndo, length_type);
 274                         if (!printed_length) {
 275                                 ND_PRINT(", length %u: ", orig_length);
 276                                 printed_length = 1;
 277                         } else
 278                                 ND_PRINT(", ");
 279                         ND_PRINT("%s, ", ieee8021q_tci_string(tag));
 280                 }
 281
 282                 length_type = GET_BE_U_2(p + 2);
 283                 p += 4;
 284                 length -= 4;
 285                 caplen -= 4;
 286                 hdrlen += 4;
 287         }
 288
 289         /*
 290          * We now have the final length/type field.
 291          */
 292         if (length_type <= MAX_ETHERNET_LENGTH_VAL) {
 293                 /*
 294                  * It's a length field, containing the length of the
 295                  * remaining payload; use it as such, as long as
 296                  * it's not too large (bigger than the actual payload).
 297                  */
 298                 if (length_type < length) {
 299                         length = length_type;
 300                         if (caplen > length)
 301                                 caplen = length;
 302                 }
 303
 304                 /*
 305                  * Cut off the snapshot length to the end of the
 306                  * payload.
 307                  */
 308                 nd_push_snapend(ndo, p + length);
 309
 310                 if (ndo->ndo_eflag) {
 311                         ND_PRINT("802.3");
 312                         if (!printed_length)
 313                                 ND_PRINT(", length %u: ", length);
 314                 }
 315
 316                 /*
 317                  * An LLC header follows the length.  Print that and
 318                  * higher layers.
 319                  */
 320                 llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
 321                 if (llc_hdrlen < 0) {
 322                         /* packet type not known, print raw packet */
 323                         if (!ndo->ndo_suppress_default_print)
 324                                 ND_DEFAULTPRINT(p, caplen);
 325                         llc_hdrlen = -llc_hdrlen;
 326                 }
 327                 hdrlen += llc_hdrlen;
 328                 nd_pop_packet_info(ndo);
 329         } else if (length_type == ETHERTYPE_JUMBO) {
 330                 /*
 331                  * It's a type field, with the type for Alteon jumbo frames.
 332                  * See
 333                  *
 334                  *      https://tools.ietf.org/html/draft-ietf-isis-ext-eth-01
 335                  *
 336                  * which indicates that, following the type field,
 337                  * there's an LLC header and payload.
 338                  */
 339                 /* Try to print the LLC-layer header & higher layers */
 340                 llc_hdrlen = llc_print(ndo, p, length, caplen, &src, &dst);
 341                 if (llc_hdrlen < 0) {
 342                         /* packet type not known, print raw packet */
 343                         if (!ndo->ndo_suppress_default_print)
 344                                 ND_DEFAULTPRINT(p, caplen);
 345                         llc_hdrlen = -llc_hdrlen;
 346                 }
 347                 hdrlen += llc_hdrlen;
 348         } else if (length_type == ETHERTYPE_ARISTA) {
 349                 if (caplen < 2) {
 350                         ND_PRINT("[|arista]");
 351                         return hdrlen + caplen;
 352                 }
 353                 if (length < 2) {
 354                         ND_PRINT("[|arista]");
 355                         return hdrlen + length;
 356                 }
 357                 ether_type_print(ndo, length_type);
 358                 ND_PRINT(", length %u: ", orig_length);
 359                 int bytesConsumed = arista_ethertype_print(ndo, p, length);
 360                 if (bytesConsumed > 0) {
 361                         p += bytesConsumed;
 362                         length -= bytesConsumed;
 363                         caplen -= bytesConsumed;
 364                         hdrlen += bytesConsumed;
 365                         goto recurse;
 366                 } else {
 367                         /* subtype/version not known, print raw packet */
 368                         if (!ndo->ndo_eflag && length_type > MAX_ETHERNET_LENGTH_VAL) {
 369                                 ether_addresses_print(ndo, src.addr, dst.addr);
 370                                 ether_type_print(ndo, length_type);
 371                                 ND_PRINT(", length %u: ", orig_length);
 372                         }
 373                          if (!ndo->ndo_suppress_default_print)
 374                                  ND_DEFAULTPRINT(p, caplen);
 375                 }
 376         } else {
 377                 /*
 378                  * It's a type field with some other value.
 379                  */
 380                 if (ndo->ndo_eflag) {
 381                         ether_type_print(ndo, length_type);
 382                         if (!printed_length)
 383                                 ND_PRINT(", length %u: ", orig_length);
 384                         else
 385                                 ND_PRINT(", ");
 386                 }
 387                 if (ethertype_print(ndo, length_type, p, length, caplen, &src, &dst) == 0) {
 388                         /* type not known, print raw packet */
 389                         if (!ndo->ndo_eflag) {
 390                                 /*
 391                                  * We didn't print the full link-layer
 392                                  * header, as -e wasn't specified, so
 393                                  * print only the source and destination
 394                                  * MAC addresses and the final Ethernet
 395                                  * type.
 396                                  */
 397                                 ether_addresses_print(ndo, src.addr, dst.addr);
 398                                 ether_type_print(ndo, length_type);
 399                                 ND_PRINT(", length %u: ", orig_length);
 400                         }
 401
 402                         if (!ndo->ndo_suppress_default_print)
 403                                 ND_DEFAULTPRINT(p, caplen);
 404                 }
 405         }
 406         return hdrlen;
 407 }
 408
 409 /*
 410  * Print an Ethernet frame while specyfing a non-standard Ethernet header
 411  * length.
 412  * This might be encapsulated within another frame; we might be passed
 413  * a pointer to a function that can print header information for that
 414  * frame's protocol, and an argument to pass to that function.
 415  *
 416  * FIXME: caplen can and should be derived from ndo->ndo_snapend and p.
 417  */
 418 u_int
 419 ether_switch_tag_print(netdissect_options *ndo, const u_char *p, u_int length,
 420     u_int caplen,
 421     void (*print_switch_tag)(netdissect_options *, const u_char *),
 422     u_int switch_tag_len)
 423 {
 424         return ether_common_print(ndo, p, length, caplen, print_switch_tag,
 425                                   switch_tag_len, NULL, NULL);
 426 }
 427
 428 /*
 429  * Print an Ethernet frame.
 430  * This might be encapsulated within another frame; we might be passed
 431  * a pointer to a function that can print header information for that
 432  * frame's protocol, and an argument to pass to that function.
 433  *
 434  * FIXME: caplen can and should be derived from ndo->ndo_snapend and p.
 435  */
 436 u_int
 437 ether_print(netdissect_options *ndo,
 438             const u_char *p, u_int length, u_int caplen,
 439             void (*print_encap_header)(netdissect_options *ndo, const u_char *),
 440             const u_char *encap_header_arg)
 441 {
 442         ndo->ndo_protocol = "ether";
 443         return ether_common_print(ndo, p, length, caplen, NULL, 0,
 444                                   print_encap_header, encap_header_arg);
 445 }
 446
 447 /*
 448  * This is the top level routine of the printer.  'p' points
 449  * to the ether header of the packet, 'h->len' is the length
 450  * of the packet off the wire, and 'h->caplen' is the number
 451  * of bytes actually captured.
 452  */
 453 void
 454 ether_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h,
 455                const u_char *p)
 456 {
 457         ndo->ndo_protocol = "ether";
 458         ndo->ndo_ll_hdr_len +=
 459                 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 void
 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";
 479         ND_TCHECK_LEN(p, 4);
 480
 481         /* Skip the pseudo-header. */
 482         ndo->ndo_ll_hdr_len += 4;
 483         ndo->ndo_ll_hdr_len +=
 484                 ether_print(ndo, p + 4, h->len - 4, h->caplen - 4, NULL, NULL);
 485 }
 486
 487 /*
 488  * This is the top level routine of the printer.  'p' points
 489  * to the ether header of the packet, 'h->len' is the length
 490  * of the packet off the wire, and 'h->caplen' is the number
 491  * of bytes actually captured.
 492  *
 493  * This is for DLT_NETANALYZER_TRANSPARENT, which has a 4-byte
 494  * pseudo-header, a 7-byte Ethernet preamble, and a 1-byte Ethernet SOF
 495  * before the Ethernet header.
 496  */
 497 void
 498 netanalyzer_transparent_if_print(netdissect_options *ndo,
 499                                  const struct pcap_pkthdr *h,
 500                                  const u_char *p)
 501 {
 502         /*
 503          * Fail if we don't have enough data for the Hilscher pseudo-header,
 504          * preamble, and SOF.
 505          */
 506         ndo->ndo_protocol = "netanalyzer_transparent";
 507         ND_TCHECK_LEN(p, 12);
 508
 509         /* Skip the pseudo-header, preamble, and SOF. */
 510         ndo->ndo_ll_hdr_len += 12;
 511         ndo->ndo_ll_hdr_len +=
 512                 ether_print(ndo, p + 12, h->len - 12, h->caplen - 12, NULL, NULL);
 513 }
 514
 515 /*
 516  * Prints the packet payload, given an Ethernet type code for the payload's
 517  * protocol.
 518  *
 519  * Returns non-zero if it can do so, zero if the ethertype is unknown.
 520  */
 521
 522 int
 523 ethertype_print(netdissect_options *ndo,
 524                 u_short ether_type, const u_char *p,
 525                 u_int length, u_int caplen,
 526                 const struct lladdr_info *src, const struct lladdr_info *dst)
 527 {
 528         switch (ether_type) {
 529
 530         case ETHERTYPE_IP:
 531                 ip_print(ndo, p, length);
 532                 return (1);
 533
 534         case ETHERTYPE_IPV6:
 535                 ip6_print(ndo, p, length);
 536                 return (1);
 537
 538         case ETHERTYPE_ARP:
 539         case ETHERTYPE_REVARP:
 540                 arp_print(ndo, p, length, caplen);
 541                 return (1);
 542
 543         case ETHERTYPE_DN:
 544                 decnet_print(ndo, p, length, caplen);
 545                 return (1);
 546
 547         case ETHERTYPE_ATALK:
 548                 if (ndo->ndo_vflag)
 549                         ND_PRINT("et1 ");
 550                 atalk_print(ndo, p, length);
 551                 return (1);
 552
 553         case ETHERTYPE_AARP:
 554                 aarp_print(ndo, p, length);
 555                 return (1);
 556
 557         case ETHERTYPE_IPX:
 558                 ND_PRINT("(NOV-ETHII) ");
 559                 ipx_print(ndo, p, length);
 560                 return (1);
 561
 562         case ETHERTYPE_ISO:
 563                 if (length == 0 || caplen == 0) {
 564                         ndo->ndo_protocol = "isoclns";
 565                         nd_print_trunc(ndo);
 566                         return (1);
 567                 }
 568                 /* At least one byte is required */
 569                 /* FIXME: Reference for this byte? */
 570                 ND_TCHECK_1(p);
 571                 isoclns_print(ndo, p + 1, length - 1);
 572                 return(1);
 573
 574         case ETHERTYPE_PPPOED:
 575         case ETHERTYPE_PPPOES:
 576         case ETHERTYPE_PPPOED2:
 577         case ETHERTYPE_PPPOES2:
 578                 pppoe_print(ndo, p, length);
 579                 return (1);
 580
 581         case ETHERTYPE_EAPOL:
 582                 eapol_print(ndo, p);
 583                 return (1);
 584
 585         case ETHERTYPE_RRCP:
 586                 rrcp_print(ndo, p, length, src, dst);
 587                 return (1);
 588
 589         case ETHERTYPE_PPP:
 590                 if (length) {
 591                         ND_PRINT(": ");
 592                         ppp_print(ndo, p, length);
 593                 }
 594                 return (1);
 595
 596         case ETHERTYPE_MPCP:
 597                 mpcp_print(ndo, p, length);
 598                 return (1);
 599
 600         case ETHERTYPE_SLOW:
 601                 slow_print(ndo, p, length);
 602                 return (1);
 603
 604         case ETHERTYPE_CFM:
 605         case ETHERTYPE_CFM_OLD:
 606                 cfm_print(ndo, p, length);
 607                 return (1);
 608
 609         case ETHERTYPE_LLDP:
 610                 lldp_print(ndo, p, length);
 611                 return (1);
 612
 613         case ETHERTYPE_NSH:
 614                 nsh_print(ndo, p, length);
 615                 return (1);
 616
 617         case ETHERTYPE_LOOPBACK:
 618                 loopback_print(ndo, p, length);
 619                 return (1);
 620
 621         case ETHERTYPE_MPLS:
 622         case ETHERTYPE_MPLS_MULTI:
 623                 mpls_print(ndo, p, length);
 624                 return (1);
 625
 626         case ETHERTYPE_TIPC:
 627                 tipc_print(ndo, p, length, caplen);
 628                 return (1);
 629
 630         case ETHERTYPE_MS_NLB_HB:
 631                 msnlb_print(ndo, p);
 632                 return (1);
 633
 634         case ETHERTYPE_GEONET_OLD:
 635         case ETHERTYPE_GEONET:
 636                 geonet_print(ndo, p, length, src);
 637                 return (1);
 638
 639         case ETHERTYPE_CALM_FAST:
 640                 calm_fast_print(ndo, p, length, src);
 641                 return (1);
 642
 643         case ETHERTYPE_AOE:
 644                 aoe_print(ndo, p, length);
 645                 return (1);
 646
 647         case ETHERTYPE_PTP:
 648                 ptp_print(ndo, p, length);
 649                 return (1);
 650
 651         case ETHERTYPE_LAT:
 652         case ETHERTYPE_SCA:
 653         case ETHERTYPE_MOPRC:
 654         case ETHERTYPE_MOPDL:
 655         case ETHERTYPE_IEEE1905_1:
 656                 /* default_print for now */
 657         default:
 658                 return (0);
 659         }
 660 }