packet-ipx.c

   1 /* packet-ipx.c
   2  * Routines for NetWare's IPX
   3  * Gilbert Ramirez <gram@verdict.uthscsa.edu>
   4  *
   5  * $Id: packet-ipx.c,v 1.34 1999/11/20 05:35:13 gram Exp $
   6  *
   7  * Ethereal - Network traffic analyzer
   8  * By Gerald Combs <gerald@unicom.net>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This program is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with this program; if not, write to the Free Software
  24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  25  */
  26
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #ifdef HAVE_SYS_TYPES_H
  32 # include <sys/types.h>
  33 #endif
  34
  35 #include <stdio.h>
  36 #include <glib.h>
  37 #include "packet.h"
  38 #include "packet-ipx.h"
  39 #include "packet-ncp.h"
  40 #include "resolv.h"
  41
  42 /* The information in this module (IPX, SPX, NCP) comes from:
  43         NetWare LAN Analysis, Second Edition
  44         Laura A. Chappell and Dan E. Hakes
  45         (c) 1994 Novell, Inc.
  46         Novell Press, San Jose.
  47         ISBN: 0-7821-1362-1
  48
  49   And from the ncpfs source code by Volker Lendecke
  50
  51 */
  52
  53 static int proto_ipx = -1;
  54 static int hf_ipx_checksum = -1;
  55 static int hf_ipx_len = -1;
  56 static int hf_ipx_hops = -1;
  57 static int hf_ipx_packet_type = -1;
  58 static int hf_ipx_dnet = -1;
  59 static int hf_ipx_dnode = -1;
  60 static int hf_ipx_dsocket = -1;
  61 static int hf_ipx_snet = -1;
  62 static int hf_ipx_snode = -1;
  63 static int hf_ipx_ssocket = -1;
  64
  65 static gint ett_ipx = -1;
  66
  67 static int proto_spx = -1;
  68 static int hf_spx_connection_control = -1;
  69 static int hf_spx_datastream_type = -1;
  70 static int hf_spx_src_id = -1;
  71 static int hf_spx_dst_id = -1;
  72 static int hf_spx_seq_nr = -1;
  73 static int hf_spx_ack_nr = -1;
  74 static int hf_spx_all_nr = -1;
  75
  76 static gint ett_spx = -1;
  77
  78 static int proto_ipxrip = -1;
  79 static int hf_ipxrip_request = -1;
  80 static int hf_ipxrip_response = -1;
  81
  82 static gint ett_ipxrip = -1;
  83
  84 static int proto_sap = -1;
  85 static int hf_sap_request = -1;
  86 static int hf_sap_response = -1;
  87
  88 static gint ett_ipxsap = -1;
  89 static gint ett_ipxsap_server = -1;
  90
  91 static void
  92 dissect_spx(const u_char *pd, int offset, frame_data *fd, proto_tree *tree);
  93
  94 static void
  95 dissect_ipxrip(const u_char *pd, int offset, frame_data *fd, proto_tree *tree);
  96
  97 static void
  98 dissect_ipxsap(const u_char *pd, int offset, frame_data *fd, proto_tree *tree);
  99
 100 typedef void    (dissect_func_t)(const u_char *, int, frame_data *, proto_tree *);
 101
 102 struct port_info {
 103         guint16 port;
 104         dissect_func_t *func;
 105         char    *text;
 106 };
 107
 108 struct conn_info {
 109         guint8  ctrl;
 110         char    *text;
 111 };
 112
 113 struct server_info {
 114         guint16 type;
 115         char    *text;
 116 };
 117
 118 /* ================================================================= */
 119 /* IPX                                                               */
 120 /* ================================================================= */
 121
 122 #define IPX_SOCKET_NCP                  0x0451
 123 #define IPX_SOCKET_SAP                  0x0452
 124 #define IPX_SOCKET_IPXRIP               0x0453
 125 #define IPX_SOCKET_NETBIOS              0x0455
 126 #define IPX_SOCKET_DIAGNOSTIC           0x0456
 127 #define IPX_SOCKET_SERIALIZATION        0x0457
 128 #define IPX_SOCKET_NWLINK_SMB_NAMEQUERY 0x0551
 129 #define IPX_SOCKET_NWLINK_SMB_DGRAM     0x0553
 130 #define IPX_SOCKET_NWLINK_SMB_BROWSE    0x0555 /* ? not sure on this
 131         but I guessed based on the content of the packet I saw */
 132 #define IPX_SOCKET_ATTACHMATE_GW        0x055d
 133 #define IPX_SOCKET_IPX_MESSAGE          0x4001
 134 #define IPX_SOCKET_ADSM                 0x8522 /* www.tivoli.com */
 135 #define IPX_SOCKET_SNMP_AGENT           0x900F /* RFC 1906 */
 136 #define IPX_SOCKET_SNMP_SINK            0x9010 /* RFC 1906 */
 137 #define IPX_SOCKET_TCP_TUNNEL           0x9091 /* RFC 1791 */
 138 #define IPX_SOCKET_UDP_TUNNEL           0x9092 /* RFC 1791 */
 139
 140 static struct port_info ports[] = {
 141         { IPX_SOCKET_NCP,                       dissect_ncp,
 142                                 "NCP" },
 143         { IPX_SOCKET_SAP,                       dissect_ipxsap,
 144                                 "SAP" },
 145         { IPX_SOCKET_IPXRIP,                    dissect_ipxrip,
 146                                 "RIP" },
 147         { IPX_SOCKET_NETBIOS,                   NULL,
 148                                 "NetBIOS" },
 149         { IPX_SOCKET_DIAGNOSTIC,                NULL,
 150                                 "Diagnostic" },
 151         { IPX_SOCKET_SERIALIZATION,             NULL,
 152                                 "Serialization" },
 153         { IPX_SOCKET_NWLINK_SMB_NAMEQUERY,      NULL,
 154                                 "NWLink SMB Name Query" },
 155         { IPX_SOCKET_NWLINK_SMB_DGRAM,          dissect_nwlink_dg,
 156                                 "NWLink SMB Datagram" },
 157         { IPX_SOCKET_NWLINK_SMB_BROWSE, NULL,
 158                                 "NWLink SMB Browse" },
 159         { IPX_SOCKET_ATTACHMATE_GW,             NULL,
 160                                 "Attachmate Gateway" },
 161         { IPX_SOCKET_IPX_MESSAGE,               NULL,
 162                                 "IPX Message" },
 163         { IPX_SOCKET_SNMP_AGENT, NULL, "SNMP Agent" },
 164         { IPX_SOCKET_SNMP_SINK, NULL, "SNMP Sink" },
 165         { IPX_SOCKET_UDP_TUNNEL, NULL, "UDP Tunnel" },
 166         { IPX_SOCKET_TCP_TUNNEL, NULL, "TCP Tunnel" },
 167         { IPX_SOCKET_TCP_TUNNEL, NULL, "TCP Tunnel" },
 168         { IPX_SOCKET_ADSM, NULL, "ADSM" },
 169         { 0x0000,                               NULL,
 170                                 NULL }
 171 };
 172
 173 static char*
 174 port_text(guint16 port) {
 175         int i=0;
 176
 177         while (ports[i].text != NULL) {
 178                 if (ports[i].port == port) {
 179                         return ports[i].text;
 180                 }
 181                 i++;
 182         }
 183         return "Unknown";
 184 }
 185
 186 static dissect_func_t*
 187 port_func(guint16 port) {
 188         int i=0;
 189
 190         while (ports[i].text != NULL) {
 191                 if (ports[i].port == port) {
 192                         return ports[i].func;
 193                 }
 194                 i++;
 195         }
 196         return NULL;
 197 }
 198
 199 #define IPX_PACKET_TYPE_IPX             0
 200 #define IPX_PACKET_TYPE_IPX_4           4
 201 #define IPX_PACKET_TYPE_SPX             5
 202 #define IPX_PACKET_TYPE_NCP             17
 203 #define IPX_PACKET_TYPE_WANBCAST        20
 204
 205 static const value_string ipx_packet_type_vals[] = {
 206         { IPX_PACKET_TYPE_IPX,          "IPX" },
 207         { IPX_PACKET_TYPE_IPX_4,        "IPX" },
 208                                 /* NetMon calls it "IPX" */
 209         { IPX_PACKET_TYPE_SPX,          "SPX" },
 210         { 16,                           "Experimental Protocol" },
 211         { IPX_PACKET_TYPE_NCP,          "NCP" },
 212         { 18,                           "Experimental Protocol" },
 213         { 19,                           "Experimental Protocol" },
 214         { IPX_PACKET_TYPE_WANBCAST,     "NetBIOS Broadcast" },
 215                                 /* NetMon calls it "WAN Broadcast" */
 216         { 21,                           "Experimental Protocol" },
 217         { 22,                           "Experimental Protocol" },
 218         { 23,                           "Experimental Protocol" },
 219         { 24,                           "Experimental Protocol" },
 220         { 25,                           "Experimental Protocol" },
 221         { 26,                           "Experimental Protocol" },
 222         { 27,                           "Experimental Protocol" },
 223         { 28,                           "Experimental Protocol" },
 224         { 29,                           "Experimental Protocol" },
 225         { 30,                           "Experimental Protocol" },
 226         { 31,                           "Experimental Protocol" },
 227         { 0,                            NULL }
 228 };
 229
 230 gchar*
 231 ipxnet_to_string(const guint8 *ad)
 232 {
 233         static gchar    str[3][8+3+1]; /* 8 digits, 3 spaces, 1 null */
 234         static gchar    *cur;
 235
 236         if (cur == &str[0][0]) {
 237                 cur = &str[1][0];
 238         } else if (cur == &str[1][0]) {
 239                 cur = &str[2][0];
 240         } else {
 241                 cur = &str[0][0];
 242         }
 243
 244         sprintf(cur, "%02X %02X %02X %02X", ad[0], ad[1], ad[2], ad[3]);
 245         return cur;
 246 }
 247
 248 /* We use a different representation of hardware addresses
 249  * than ether_to_str(); we don't put punctuation between the hex
 250  * digits.
 251  */
 252
 253 gchar*
 254 ipx_addr_to_str(guint32 net, const guint8 *ad)
 255 {
 256         static gchar    str[3][8+1+MAXNAMELEN+1]; /* 8 digits, 1 period, NAME, 1 null */
 257         static gchar    *cur;
 258         char            *name;
 259
 260         if (cur == &str[0][0]) {
 261                 cur = &str[1][0];
 262         } else if (cur == &str[1][0]) {
 263                 cur = &str[2][0];
 264         } else {
 265                 cur = &str[0][0];
 266         }
 267
 268         name = get_ether_name_if_known(ad);
 269
 270         if (name) {
 271                 sprintf(cur, "%X.%s", net, name);
 272         }
 273         else {
 274                 sprintf(cur, "%X.%s", net, ether_to_str_punct(ad, '\0'));
 275         }
 276         return cur;
 277 }
 278
 279 void
 280 dissect_ipx(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
 281
 282         proto_tree      *ipx_tree;
 283         proto_item      *ti;
 284         guint8          ipx_type, ipx_hops;
 285         guint16         ipx_checksum, ipx_length;
 286         int             len;
 287         guint8          *ipx_snode, *ipx_dnode, *ipx_snet, *ipx_dnet;
 288
 289         gchar           *str_dnet, *str_snet;
 290         guint16         ipx_dsocket, ipx_ssocket;
 291         dissect_func_t  *dissect;
 292         guint32         ipx_dnet_val, ipx_snet_val;
 293
 294         /* Calculate here for use in pinfo and in tree */
 295         ipx_dnet = (guint8*)&pd[offset+6];
 296         ipx_snet = (guint8*)&pd[offset+18];
 297         str_dnet = ipxnet_to_string(ipx_dnet);
 298         str_snet = ipxnet_to_string(ipx_snet);
 299         ipx_dnet_val = pntohl(ipx_dnet);
 300         ipx_snet_val = pntohl(ipx_snet);
 301         ipx_dsocket = pntohs(&pd[offset+16]);
 302         ipx_ssocket = pntohs(&pd[offset+28]);
 303         ipx_dnode = (guint8*)&pd[offset+10];
 304         ipx_snode = (guint8*)&pd[offset+22];
 305         ipx_type = pd[offset+5];
 306         ipx_length = pntohs(&pd[offset+2]);
 307
 308         /* Length of IPX datagram plus headers above it. */
 309         len = ipx_length + offset;
 310
 311         /* Set the payload and captured-payload lengths to the minima of
 312            (the IPX length plus the length of the headers above it) and
 313            the frame lengths. */
 314         if (pi.len > len)
 315                 pi.len = len;
 316         if (pi.captured_len > len)
 317                 pi.captured_len = len;
 318
 319         SET_ADDRESS(&pi.net_src, AT_IPX, 10, &pd[offset+18]);
 320         SET_ADDRESS(&pi.src, AT_IPX, 10, &pd[offset+18]);
 321         SET_ADDRESS(&pi.net_dst, AT_IPX, 10, &pd[offset+6]);
 322         SET_ADDRESS(&pi.dst, AT_IPX, 10, &pd[offset+6]);
 323
 324         if (check_col(fd, COL_PROTOCOL))
 325                 col_add_str(fd, COL_PROTOCOL, "IPX");
 326         if (check_col(fd, COL_INFO))
 327                 col_add_fstr(fd, COL_INFO, "%s (0x%04X)", port_text(ipx_dsocket),
 328                                 ipx_dsocket);
 329
 330         if (tree) {
 331                 ipx_checksum = pntohs(&pd[offset]);
 332                 ipx_hops = pd[offset+4];
 333
 334                 ti = proto_tree_add_item(tree, proto_ipx, offset, 30, NULL);
 335                 ipx_tree = proto_item_add_subtree(ti, ett_ipx);
 336                 proto_tree_add_item(ipx_tree, hf_ipx_checksum, offset, 2, ipx_checksum);
 337                 proto_tree_add_item_format(ipx_tree, hf_ipx_len, offset+2, 2, ipx_length,
 338                         "Length: %d bytes", ipx_length);
 339                 proto_tree_add_item_format(ipx_tree, hf_ipx_hops, offset+4, 1, ipx_hops,
 340                         "Transport Control: %d hops", ipx_hops);
 341                 proto_tree_add_item(ipx_tree, hf_ipx_packet_type, offset+5, 1, ipx_type);
 342                 proto_tree_add_item(ipx_tree, hf_ipx_dnet, offset+6, 4, ipx_dnet_val);
 343                 proto_tree_add_item(ipx_tree, hf_ipx_dnode, offset+10, 6, ipx_dnode);
 344                 proto_tree_add_item_format(ipx_tree, hf_ipx_dsocket, offset+16, 2,
 345                         ipx_dsocket, "Destination Socket: %s (0x%04X)",
 346                         port_text(ipx_dsocket), ipx_dsocket);
 347                 proto_tree_add_item(ipx_tree, hf_ipx_snet, offset+18, 4, ipx_snet_val);
 348                 proto_tree_add_item(ipx_tree, hf_ipx_snode, offset+22, 6, ipx_snode);
 349                 proto_tree_add_item_format(ipx_tree, hf_ipx_ssocket, offset+28, 2,
 350                         ipx_ssocket, "Source Socket: %s (0x%04X)", port_text(ipx_ssocket),
 351                         ipx_ssocket);
 352         }
 353         offset += 30;
 354
 355         switch (ipx_type) {
 356                 case IPX_PACKET_TYPE_SPX:
 357                         dissect_spx(pd, offset, fd, tree);
 358                         break;
 359
 360                 case IPX_PACKET_TYPE_NCP:
 361                         /* Is the destination node 00:00:00:00:00:01 ? */
 362                         if (pntohl(ipx_dnode) == 0 && pntohs(ipx_dnode + 4) == 1)
 363                                 nw_server_address = pntohl(ipx_dnet);
 364
 365                         /* Is the source node 00:00:00:00:00:01 ? */
 366                         else if (pntohl(ipx_snode) == 0 && pntohs(ipx_snode + 4) == 1)
 367                                 nw_server_address = pntohl(ipx_snet);
 368                         else
 369                                 nw_server_address = 0;
 370
 371                         dissect_ncp(pd, offset, fd, tree);
 372                         break;
 373
 374                 case IPX_PACKET_TYPE_WANBCAST:
 375                 case IPX_PACKET_TYPE_IPX_4:
 376                         if (ipx_dsocket == IPX_SOCKET_NETBIOS) {
 377                                 dissect_nbipx(pd, offset, fd, tree);
 378                                 break;
 379                         }
 380                         /* else fall through */
 381
 382                 case 0: /* IPX, fall through to default */
 383                         /* XXX - should type 0's be dissected as NBIPX
 384                            if they're aimed at the NetBIOS socket? */
 385                 default:
 386                         dissect = port_func(ipx_dsocket);
 387                         if (dissect) {
 388                                 dissect(pd, offset, fd, tree);
 389                         }
 390                         else {
 391                                 dissect = port_func(ipx_ssocket);
 392                                 if (dissect) {
 393                                         dissect(pd, offset, fd, tree);
 394                                 }
 395                                 else {
 396                                         dissect_data(pd, offset, fd, tree);
 397                                 }
 398                         }
 399                         break;
 400         }
 401 }
 402
 403
 404 /* ================================================================= */
 405 /* SPX                                                               */
 406 /* ================================================================= */
 407 static char*
 408 spx_conn_ctrl(u_char ctrl)
 409 {
 410         int i=0;
 411
 412         static struct conn_info conns[] = {
 413                 { 0x10, "End-of-Message" },
 414                 { 0x20, "Attention" },
 415                 { 0x40, "Acknowledgment Required"},
 416                 { 0x80, "System Packet"},
 417                 { 0x00, NULL }
 418         };
 419
 420         while (conns[i].text != NULL) {
 421                 if (conns[i].ctrl == ctrl) {
 422                         return conns[i].text;
 423                 }
 424                 i++;
 425         }
 426         return "Unknown";
 427 }
 428
 429 static char*
 430 spx_datastream(u_char type)
 431 {
 432         switch (type) {
 433                 case 0xfe:
 434                         return "End-of-Connection";
 435                 case 0xff:
 436                         return "End-of-Connection Acknowledgment";
 437                 default:
 438                         return "Client-Defined";
 439         }
 440 }
 441
 442 static void
 443 dissect_spx(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
 444         proto_tree      *spx_tree;
 445         proto_item      *ti;
 446
 447         if (check_col(fd, COL_PROTOCOL))
 448                 col_add_str(fd, COL_PROTOCOL, "SPX");
 449         if (check_col(fd, COL_INFO))
 450                 col_add_str(fd, COL_INFO, "SPX");
 451
 452         if (tree) {
 453                 ti = proto_tree_add_item(tree, proto_spx, offset, 12, NULL);
 454                 spx_tree = proto_item_add_subtree(ti, ett_spx);
 455
 456                 proto_tree_add_item_format(spx_tree, hf_spx_connection_control,
 457                                            offset,      1,
 458                                            pd[offset],
 459                                            "Connection Control: %s (0x%02X)",
 460                                            spx_conn_ctrl(pd[offset]),
 461                                            pd[offset]);
 462
 463                 proto_tree_add_item_format(spx_tree, hf_spx_datastream_type,
 464                                            offset+1,     1,
 465                                            pd[offset+1],
 466                                            "Datastream Type: %s (0x%02X)",
 467                                            spx_datastream(pd[offset+1]),
 468                                            pd[offset+1]);
 469
 470                 proto_tree_add_item(spx_tree, hf_spx_src_id,
 471                                     offset+2,     2,
 472                                     pntohs( &pd[offset+2] ));
 473
 474                 proto_tree_add_item(spx_tree, hf_spx_dst_id,
 475                                     offset+4,     2,
 476                                     pntohs( &pd[offset+4] ));
 477
 478                 proto_tree_add_item(spx_tree, hf_spx_seq_nr,
 479                                     offset+6,     2,
 480                                     pntohs( &pd[offset+6] ) );
 481
 482                 proto_tree_add_item(spx_tree, hf_spx_ack_nr,
 483                                     offset+8,     2,
 484                                     pntohs( &pd[offset+8] ) );
 485
 486                 proto_tree_add_item(spx_tree, hf_spx_all_nr,
 487                                     offset+10,     2,
 488                                     pntohs( &pd[offset+10] ) );
 489
 490                 offset += 12;
 491                 dissect_data(pd, offset, fd, tree);
 492         }
 493 }
 494
 495 /* ================================================================= */
 496 /* IPX RIP                                                           */
 497 /* ================================================================= */
 498 static void
 499 dissect_ipxrip(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
 500         proto_tree      *rip_tree;
 501         proto_item      *ti;
 502         guint16         operation;
 503         struct ipx_rt_def route;
 504         int             cursor;
 505
 506         char            *rip_type[2] = { "Request", "Response" };
 507
 508         operation = pntohs(&pd[offset]) - 1;
 509
 510         if (check_col(fd, COL_PROTOCOL))
 511          col_add_str(fd, COL_PROTOCOL, "IPX RIP");
 512         if (check_col(fd, COL_PROTOCOL)) {
 513          if (operation < 2) {
 514                  col_add_str(fd, COL_INFO, rip_type[operation]);
 515          }
 516          else {
 517                  col_add_str(fd, COL_INFO, "Unknown Packet Type");
 518          }
 519         }
 520
 521         if (tree) {
 522                 ti = proto_tree_add_item(tree, proto_ipxrip, offset, END_OF_FRAME, NULL);
 523                 rip_tree = proto_item_add_subtree(ti, ett_ipxrip);
 524
 525                 if (operation < 2) {
 526                         proto_tree_add_text(rip_tree, offset, 2,
 527                         "RIP packet type: %s", rip_type[operation]);
 528
 529                         if (operation == 0) {
 530                           proto_tree_add_item_hidden(rip_tree,
 531                                                      hf_ipxrip_request,
 532                                                      offset, 2, 1);
 533                         } else {
 534                           proto_tree_add_item_hidden(rip_tree,
 535                                                      hf_ipxrip_response,
 536                                                      offset, 2, 1);
 537                         }
 538
 539                 }
 540                 else {
 541                         proto_tree_add_text(rip_tree, offset, 2, "Unknown RIP packet type");
 542                 }
 543
 544                 for (cursor = offset + 2; cursor < fd->cap_len; cursor += 8) {
 545                         memcpy(&route.network, &pd[cursor], 4);
 546                         route.hops = pntohs(&pd[cursor+4]);
 547                         route.ticks = pntohs(&pd[cursor+6]);
 548
 549                         if (operation == IPX_RIP_REQUEST - 1) {
 550                                 proto_tree_add_text(rip_tree, cursor,      8,
 551                                         "Route Vector: %s, %d hop%s, %d tick%s",
 552                                         ipxnet_to_string((guint8*)&route.network),
 553                                         route.hops,  route.hops  == 1 ? "" : "s",
 554                                         route.ticks, route.ticks == 1 ? "" : "s");
 555                         }
 556                         else {
 557                                 proto_tree_add_text(rip_tree, cursor,      8,
 558                                         "Route Vector: %s, %d hop%s, %d tick%s (%d ms)",
 559                                         ipxnet_to_string((guint8*)&route.network),
 560                                         route.hops,  route.hops  == 1 ? "" : "s",
 561                                         route.ticks, route.ticks == 1 ? "" : "s",
 562                                         route.ticks * 1000 / 18);
 563                         }
 564                 }
 565         }
 566 }
 567
 568
 569
 570 /* ================================================================= */
 571 /* SAP                                                                                                                           */
 572 /* ================================================================= */
 573 static char*
 574 server_type(guint16 type)
 575 {
 576         int i=0;
 577
 578         /* some of these are from ncpfs, others are from the book */
 579         static struct server_info       servers[] = {
 580                 { 0x0001,       "User" },
 581                 { 0x0002,       "User Group" },
 582                 { 0x0003,       "Print Queue" },
 583                 { 0x0004,       "File server" },
 584                 { 0x0005,       "Job server" },
 585                 { 0x0007,       "Print server" },
 586                 { 0x0008,       "Archive server" },
 587                 { 0x0009,       "Archive server" },
 588                 { 0x000a,       "Job queue" },
 589                 { 0x000b,       "Administration" },
 590                 { 0x0021,       "NAS SNA gateway" },
 591                 { 0x0024,       "Remote bridge" },
 592                 { 0x0026,       "Bridge server" },
 593                 { 0x0027,       "TCP/IP gateway" },
 594                 { 0x002d,       "Time Synchronization VAP" },
 595                 { 0x002e,       "Archive Server Dynamic SAP" },
 596                 { 0x0047,       "Advertising print server" },
 597                 { 0x004b,       "Btrieve VAP 5.0" },
 598                 { 0x004c,       "SQL VAP" },
 599                 { 0x0050,       "Btrieve VAP" },
 600                 { 0x0053,       "Print Queue VAP" },
 601                 { 0x007a,       "TES NetWare for VMS" },
 602                 { 0x0098,       "NetWare access server" },
 603                 { 0x009a,       "Named Pipes server" },
 604                 { 0x009e,       "Portable NetWare Unix" },
 605                 { 0x0107,       "NetWare 386" },
 606                 { 0x0111,       "Test server" },
 607                 { 0x0133,       "NetWare Name Service" },
 608                 { 0x0166,       "NetWare management" },
 609                 { 0x023f,       "SMS Testing and Development" },
 610                 { 0x026a,       "NetWare management" },
 611                 { 0x026b,       "Time synchronization" },
 612                 { 0x027b,       "NetWare Management Agent" },
 613                 { 0x0278,       "NetWare Directory server" },
 614                 { 0x030c,       "HP LaserJet / Quick Silver" },
 615                 { 0x0355,       "Arcada Software" },
 616                 { 0x0361,       "NETINELO" },
 617                 { 0x037e,       "Powerchute UPS Monitoring" },
 618                 { 0x03e1,       "UnixWare Application Server" },
 619                 { 0x044c,       "Archive" },
 620                 { 0x055d,       "Attachmate SNA gateway" },
 621                 { 0x0610,       "Adaptec SCSI Management" },
 622                 { 0x0640,       "NT Server-RPC/GW for NW/Win95 User Level Sec" },
 623                 { 0x064e,       "NT Server-IIS" },
 624                 { 0x0810,       "ELAN License Server Demo" },
 625                 { 0x8002,       "Intel NetPort Print Server" },
 626
 627 /* For any unidentified ones, I found a really big list of them at: */
 628 /*    http://www.inpnet.org/cnpweb/saplist.txt */
 629 /*    http://www.isi.edu/in-notes/iana/assignments/novell-sap-numbers */
 630
 631                 { 0x0000,       NULL }
 632         };
 633
 634         while (servers[i].text != NULL) {
 635                 if (servers[i].type == type) {
 636                         return servers[i].text;
 637                 }
 638                 i++;
 639         }
 640         return "Unknown";
 641 }
 642
 643 static void
 644 dissect_ipxsap(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) {
 645
 646         proto_tree      *sap_tree, *s_tree;
 647         proto_item      *ti;
 648         int             cursor;
 649         struct sap_query query;
 650         struct sap_server_ident server;
 651
 652         char            *sap_type[4] = { "General Query", "General Response",
 653                 "Nearest Query", "Nearest Response" };
 654
 655         query.query_type = pntohs(&pd[offset]);
 656         query.server_type = pntohs(&pd[offset+2]);
 657
 658         if (check_col(fd, COL_PROTOCOL))
 659                 col_add_str(fd, COL_PROTOCOL, "SAP");
 660         if (check_col(fd, COL_INFO)) {
 661                 if (query.query_type >= 1 && query.query_type <= 4) {
 662                         col_add_str(fd, COL_INFO, sap_type[query.query_type - 1]);
 663                 }
 664                 else {
 665                         col_add_str(fd, COL_INFO, "Unknown Packet Type");
 666                 }
 667         }
 668
 669         if (tree) {
 670                 ti = proto_tree_add_item(tree, proto_sap, offset, END_OF_FRAME, NULL);
 671                 sap_tree = proto_item_add_subtree(ti, ett_ipxsap);
 672
 673                 if (query.query_type >= 1 && query.query_type <= 4) {
 674                         proto_tree_add_text(sap_tree, offset, 2, sap_type[query.query_type - 1]);
 675                         if ((query.query_type - 1) % 2) {
 676                           proto_tree_add_item_hidden(sap_tree,
 677                                                      hf_sap_response,
 678                                                      offset, 2, 1);
 679                         } else {
 680                           proto_tree_add_item_hidden(sap_tree,
 681                                                      hf_sap_request,
 682                                                      offset, 2, 1);
 683                         }
 684                 }
 685                 else {
 686                         proto_tree_add_text(sap_tree, offset, 2,
 687                                         "Unknown SAP Packet Type %d", query.query_type);
 688                 }
 689
 690                 if (query.query_type == IPX_SAP_GENERAL_RESPONSE ||
 691                                 query.query_type == IPX_SAP_NEAREST_RESPONSE) { /* responses */
 692
 693                         for (cursor = offset + 2; (cursor + 64) <= fd->cap_len; cursor += 64) {
 694                                 server.server_type = pntohs(&pd[cursor]);
 695                                 memcpy(server.server_name, &pd[cursor+2], 48);
 696                                 memcpy(&server.server_network, &pd[cursor+50], 4);
 697                                 memcpy(&server.server_node, &pd[cursor+54], 6);
 698                                 server.server_port = pntohs(&pd[cursor+60]);
 699                                 server.intermediate_network = pntohs(&pd[cursor+62]);
 700
 701                                 ti = proto_tree_add_text(sap_tree, cursor+2, 48,
 702                                         "Server Name: %s", server.server_name);
 703                                 s_tree = proto_item_add_subtree(ti, ett_ipxsap_server);
 704
 705                                 proto_tree_add_text(s_tree, cursor, 2, "Server Type: %s (0x%04X)",
 706                                                 server_type(server.server_type), server.server_type);
 707                                 proto_tree_add_text(s_tree, cursor+50, 4, "Network: %s",
 708                                                 ipxnet_to_string((guint8*)&pd[cursor+50]));
 709                                 proto_tree_add_text(s_tree, cursor+54, 6, "Node: %s",
 710                                                 ether_to_str((guint8*)&pd[cursor+54]));
 711                                 proto_tree_add_text(s_tree, cursor+60, 2, "Socket: %s (0x%04X)",
 712                                                 port_text(server.server_port), server.server_port);
 713                                 proto_tree_add_text(s_tree, cursor+62, 2,
 714                                                 "Intermediate Networks: %d",
 715                                                 server.intermediate_network);
 716                         }
 717                 }
 718                 else {  /* queries */
 719                         proto_tree_add_text(sap_tree, offset+2, 2, "Server Type: %s (0x%04X)",
 720                                         server_type(query.server_type), query.server_type);
 721                 }
 722         }
 723 }
 724
 725
 726 void
 727 proto_register_ipx(void)
 728 {
 729         static hf_register_info hf_ipx[] = {
 730                 { &hf_ipx_checksum,
 731                 { "Checksum",           "ipx.checksum", FT_UINT16, BASE_HEX, NULL, 0x0,
 732                         "" }},
 733
 734                 { &hf_ipx_len,
 735                 { "Length",             "ipx.len", FT_UINT16, BASE_DEC, NULL, 0x0,
 736                         "" }},
 737
 738                 { &hf_ipx_hops,
 739                 { "Transport Control (Hops)", "ipx.hops", FT_UINT8, BASE_DEC, NULL, 0x0,
 740                         "" }},
 741
 742                 { &hf_ipx_packet_type,
 743                 { "Packet Type",        "ipx.packet_type", FT_UINT8, BASE_HEX, VALS(ipx_packet_type_vals),
 744                         0x0,
 745                         "" }},
 746
 747                 { &hf_ipx_dnet,
 748                 { "Destination Network","ipx.dst.net", FT_IPXNET, BASE_NONE, NULL, 0x0,
 749                         "" }},
 750
 751                 { &hf_ipx_dnode,
 752                 { "Destination Node",   "ipx.dst.node", FT_ETHER, BASE_NONE, NULL, 0x0,
 753                         "" }},
 754
 755                 { &hf_ipx_dsocket,
 756                 { "Destination Socket", "ipx.dst.socket", FT_UINT16, BASE_HEX, NULL, 0x0,
 757                         "" }},
 758
 759                 { &hf_ipx_snet,
 760                 { "Source Network","ipx.src.net", FT_IPXNET, BASE_NONE, NULL, 0x0,
 761                         "" }},
 762
 763                 { &hf_ipx_snode,
 764                 { "Source Node",        "ipx.src.node", FT_ETHER, BASE_NONE, NULL, 0x0,
 765                         "" }},
 766
 767                 { &hf_ipx_ssocket,
 768                 { "Source Socket",      "ipx.src.socket", FT_UINT16, BASE_HEX, NULL, 0x0,
 769                         "" }},
 770         };
 771
 772         static hf_register_info hf_spx[] = {
 773                 { &hf_spx_connection_control,
 774                 { "Connection Control",         "spx.ctl",
 775                   FT_UINT8,     BASE_HEX,       NULL,   0x0,
 776                   "" }},
 777
 778                 { &hf_spx_datastream_type,
 779                 { "Datastream type",            "spx.type",
 780                   FT_UINT8,     BASE_HEX,       NULL,   0x0,
 781                   "" }},
 782
 783                 { &hf_spx_src_id,
 784                 { "Source Connection ID",       "spx.src",
 785                   FT_UINT16,    BASE_DEC,       NULL,   0x0,
 786                   "" }},
 787
 788                 { &hf_spx_dst_id,
 789                 { "Destination Connection ID",  "spx.dst",
 790                   FT_UINT16,    BASE_DEC,       NULL,   0x0,
 791                   "" }},
 792
 793                 { &hf_spx_seq_nr,
 794                 { "Sequence Number",            "spx.seq",
 795                   FT_UINT16,    BASE_DEC,       NULL,   0x0,
 796                   "" }},
 797
 798                 { &hf_spx_ack_nr,
 799                 { "Acknowledgment Number",      "spx.ack",
 800                   FT_UINT16,    BASE_DEC,       NULL,   0x0,
 801                   "" }},
 802
 803                 { &hf_spx_all_nr,
 804                 { "Allocation Number",          "spx.alloc",
 805                   FT_UINT16,    BASE_DEC,       NULL,   0x0,
 806                   "" }}
 807         };
 808
 809         static hf_register_info hf_ipxrip[] = {
 810                 { &hf_ipxrip_request,
 811                 { "Request",                    "ipxrip.request",
 812                   FT_BOOLEAN,   BASE_NONE,      NULL,   0x0,
 813                   "TRUE if IPX RIP request" }},
 814
 815                 { &hf_ipxrip_response,
 816                 { "Response",                   "ipxrip.response",
 817                   FT_BOOLEAN,   BASE_NONE,      NULL,   0x0,
 818                   "TRUE if IPX RIP response" }}
 819         };
 820
 821         static hf_register_info hf_sap[] = {
 822                 { &hf_sap_request,
 823                 { "Request",                    "sap.request",
 824                   FT_BOOLEAN,   BASE_NONE,      NULL,   0x0,
 825                   "TRUE if SAP request" }},
 826
 827                 { &hf_sap_response,
 828                 { "Response",                   "sap.response",
 829                   FT_BOOLEAN,   BASE_NONE,      NULL,   0x0,
 830                   "TRUE if SAP response" }}
 831         };
 832         static gint *ett[] = {
 833                 &ett_ipx,
 834                 &ett_spx,
 835                 &ett_ipxrip,
 836                 &ett_ipxsap,
 837                 &ett_ipxsap_server,
 838         };
 839
 840         proto_ipx = proto_register_protocol ("Internetwork Packet eXchange", "ipx");
 841         proto_register_field_array(proto_ipx, hf_ipx, array_length(hf_ipx));
 842
 843         proto_spx = proto_register_protocol ("Sequenced Packet eXchange", "spx");
 844         proto_register_field_array(proto_spx, hf_spx, array_length(hf_spx));
 845
 846         proto_ipxrip = proto_register_protocol ("IPX Routing Information Protocol", "ipxrip");
 847         proto_register_field_array(proto_ipxrip, hf_ipxrip, array_length(hf_ipxrip));
 848
 849         proto_sap = proto_register_protocol ("Service Advertisement Protocol", "sap");
 850         proto_register_field_array(proto_sap, hf_sap, array_length(hf_sap));
 851
 852         proto_register_subtree_array(ett, array_length(ett));
 853 }