epan/dissectors/packet-netsync.c

   1 /* packet-netsync.c
   2  * Routines for Monotone Netsync packet disassembly
   3  *
   4  * Copyright (c) 2005 by Erwin Rol <erwin@erwinrol.com>
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1999 Gerald Combs
   9  *
  10  * SPDX-License-Identifier: GPL-2.0-or-later
  11  */
  12
  13 /* Include files */
  14
  15 #include "config.h"
  16
  17 #include <epan/packet.h>
  18 #include <epan/prefs.h>
  19 #include "packet-tcp.h"
  20
  21 void proto_register_netsync(void);
  22 void proto_reg_handoff_netsync(void);
  23
  24 static dissector_handle_t netsync_handle;
  25
  26 /*
  27  * See
  28  *
  29  *      http://www.monotone.ca
  30  */
  31
  32 /* Define TCP ports for Monotone netsync */
  33
  34 #define TCP_PORT_NETSYNC 5253
  35
  36 #define NETSYNC_ROLE_SOURCE     1
  37 #define NETSYNC_ROLE_SINK       2
  38 #define NETSYNC_ROLE_BOTH       3
  39
  40 static const value_string netsync_role_vals[] = {
  41         { NETSYNC_ROLE_SOURCE,  "Source" },
  42         { NETSYNC_ROLE_SINK,    "Sink" },
  43         { NETSYNC_ROLE_BOTH,    "Both" },
  44         { 0,                    NULL }
  45 };
  46
  47
  48 #define NETSYNC_CMD_ERROR       0
  49 #define NETSYNC_CMD_BYE         1
  50 #define NETSYNC_CMD_HELLO       2
  51 #define NETSYNC_CMD_ANONYMOUS   3
  52 #define NETSYNC_CMD_AUTH        4
  53 #define NETSYNC_CMD_CONFIRM     5
  54 #define NETSYNC_CMD_REFINE      6
  55 #define NETSYNC_CMD_DONE        7
  56 #define NETSYNC_CMD_SEND_DATA   8
  57 #define NETSYNC_CMD_SEND_DELTA  9
  58 #define NETSYNC_CMD_DATA        10
  59 #define NETSYNC_CMD_DELTA       11
  60 #define NETSYNC_CMD_NONEXISTENT 12
  61
  62 static const value_string netsync_cmd_vals[] = {
  63         { NETSYNC_CMD_ERROR,            "Error" },
  64         { NETSYNC_CMD_BYE,              "Bye" },
  65         { NETSYNC_CMD_HELLO,            "Hello" },
  66         { NETSYNC_CMD_ANONYMOUS,        "Anonymous" },
  67         { NETSYNC_CMD_AUTH,             "Auth" },
  68         { NETSYNC_CMD_CONFIRM,          "Confirm" },
  69         { NETSYNC_CMD_REFINE,           "Refine" },
  70         { NETSYNC_CMD_DONE,             "Done" },
  71         { NETSYNC_CMD_SEND_DATA,        "Send Data" },
  72         { NETSYNC_CMD_SEND_DELTA,       "Send Delta" },
  73         { NETSYNC_CMD_DATA,             "Data" },
  74         { NETSYNC_CMD_DELTA,            "Delta" },
  75         { NETSYNC_CMD_NONEXISTENT,      "Nonexistent" },
  76         { 0,                            NULL }
  77 };
  78
  79 #define NETSNYC_MERKLE_HASH_LENGTH 20
  80
  81 /* Define the monotone netsync proto */
  82 static int proto_netsync;
  83
  84 static int hf_netsync_version;
  85 static int hf_netsync_command;
  86 static int hf_netsync_size;
  87 static int hf_netsync_data;
  88 static int hf_netsync_checksum;
  89
  90 static int hf_netsync_cmd_done_level;
  91 static int hf_netsync_cmd_done_type;
  92
  93 static int hf_netsync_cmd_hello_keyname;
  94 static int hf_netsync_cmd_hello_key;
  95 static int hf_netsync_cmd_nonce;
  96
  97 static int hf_netsync_cmd_anonymous_role;
  98 static int hf_netsync_cmd_anonymous_collection;
  99
 100 static int hf_netsync_cmd_send_data_type;
 101 static int hf_netsync_cmd_send_data_id;
 102
 103 static int hf_netsync_cmd_error_msg;
 104
 105
 106 static int hf_netsync_cmd_confirm_sig;
 107
 108 static int hf_netsync_cmd_auth_role;
 109 static int hf_netsync_cmd_auth_collection;
 110 static int hf_netsync_cmd_auth_id;
 111 static int hf_netsync_cmd_auth_nonce1;
 112 static int hf_netsync_cmd_auth_nonce2;
 113 static int hf_netsync_cmd_auth_sig;
 114
 115 static int hf_netsync_cmd_data_type;
 116 static int hf_netsync_cmd_data_id;
 117 static int hf_netsync_cmd_data_compressed;
 118 static int hf_netsync_cmd_data_payload;
 119
 120 static int hf_netsync_cmd_delta_type;
 121 static int hf_netsync_cmd_delta_base_id;
 122 static int hf_netsync_cmd_delta_ident_id;
 123 static int hf_netsync_cmd_delta_compressed;
 124 static int hf_netsync_cmd_delta_payload;
 125
 126 static int hf_netsync_cmd_refine_tree_node;
 127
 128 static int hf_netsync_cmd_send_delta_type;
 129 static int hf_netsync_cmd_send_delta_base_id;
 130 static int hf_netsync_cmd_send_delta_ident_id;
 131
 132 static int hf_netsync_cmd_nonexistent_type;
 133 static int hf_netsync_cmd_nonexistent_id;
 134
 135 /* Define the tree for netsync */
 136 static int ett_netsync;
 137
 138
 139 /*
 140  * Here are the global variables associated with the preferences
 141  * for monotone netsync
 142  */
 143
 144 static bool netsync_desegment = true;
 145
 146 static int dissect_netsync_cmd_error( tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 147 {
 148         uint64_t len = 0;
 149
 150         offset += tvb_get_varint( tvb, offset, FT_VARINT_MAX_LEN, &len, ENC_VARINT_PROTOBUF );
 151
 152         proto_tree_add_item(tree, hf_netsync_cmd_error_msg, tvb,
 153                                 offset, (int)len, ENC_ASCII );
 154         offset += (int)len;
 155
 156         return offset;
 157 }
 158
 159 static int dissect_netsync_cmd_bye(tvbuff_t *tvb _U_,  int offset, proto_tree *tree _U_, unsigned size _U_)
 160 {
 161         return offset;
 162 }
 163
 164
 165 static int dissect_netsync_cmd_hello(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 166 {
 167         uint64_t len = 0;
 168
 169         offset += tvb_get_varint( tvb, offset, FT_VARINT_MAX_LEN, &len, ENC_VARINT_PROTOBUF );
 170         proto_tree_add_item(tree, hf_netsync_cmd_hello_keyname, tvb,
 171                                 offset, (int)len, ENC_ASCII );
 172         offset += (int)len;
 173
 174
 175         offset += tvb_get_varint( tvb, offset, FT_VARINT_MAX_LEN, &len, ENC_VARINT_PROTOBUF );
 176         proto_tree_add_item(tree, hf_netsync_cmd_hello_key, tvb,
 177                                 offset, (int)len, ENC_NA );
 178         offset += (int)len;
 179
 180         proto_tree_add_item(tree, hf_netsync_cmd_nonce, tvb,
 181                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 182         offset += NETSNYC_MERKLE_HASH_LENGTH;
 183
 184         return offset;
 185 }
 186
 187
 188 static int dissect_netsync_cmd_anonymous(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 189 {
 190         uint64_t len = 0;
 191
 192         proto_tree_add_item(tree, hf_netsync_cmd_anonymous_role, tvb,
 193                                 offset, 1, ENC_BIG_ENDIAN );
 194         offset += 1;
 195
 196         offset += tvb_get_varint( tvb, offset, FT_VARINT_MAX_LEN, &len, ENC_VARINT_PROTOBUF );
 197         proto_tree_add_item(tree, hf_netsync_cmd_anonymous_collection, tvb,
 198                                 offset, (int)len, ENC_ASCII );
 199         offset += (int)len;
 200
 201         proto_tree_add_item(tree, hf_netsync_cmd_nonce, tvb,
 202                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 203         offset += NETSNYC_MERKLE_HASH_LENGTH;
 204
 205         return offset;
 206 }
 207
 208
 209 static int dissect_netsync_cmd_auth(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 210 {
 211         uint64_t len = 0;
 212
 213         proto_tree_add_item(tree, hf_netsync_cmd_auth_role, tvb,
 214                                 offset, 1, ENC_BIG_ENDIAN );
 215         offset += 1;
 216
 217
 218         offset += tvb_get_varint( tvb, offset, FT_VARINT_MAX_LEN, &len, ENC_VARINT_PROTOBUF );
 219         proto_tree_add_item(tree, hf_netsync_cmd_auth_collection, tvb,
 220                                 offset, (int)len, ENC_ASCII );
 221         offset += (int)len;
 222
 223         proto_tree_add_item(tree, hf_netsync_cmd_auth_id, tvb,
 224                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 225         offset += NETSNYC_MERKLE_HASH_LENGTH;
 226
 227         offset += (int)len;
 228
 229         proto_tree_add_item(tree, hf_netsync_cmd_auth_nonce1, tvb,
 230                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 231         offset += NETSNYC_MERKLE_HASH_LENGTH;
 232
 233         offset += (int)len;
 234
 235         proto_tree_add_item(tree, hf_netsync_cmd_auth_nonce2, tvb,
 236                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 237         offset += NETSNYC_MERKLE_HASH_LENGTH;
 238
 239         offset += tvb_get_varint( tvb, offset, FT_VARINT_MAX_LEN, &len, ENC_VARINT_PROTOBUF );
 240         proto_tree_add_item(tree, hf_netsync_cmd_auth_sig, tvb,
 241                                 offset, (int)len, ENC_NA );
 242         offset += (int)len;
 243
 244         return offset;
 245 }
 246
 247
 248 static int dissect_netsync_cmd_confirm(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 249 {
 250         uint64_t len = 0;
 251
 252         offset += tvb_get_varint( tvb, offset, FT_VARINT_MAX_LEN, &len, ENC_VARINT_PROTOBUF );
 253         proto_tree_add_item(tree, hf_netsync_cmd_confirm_sig, tvb,
 254                                 offset, (int)len, ENC_NA );
 255         offset += (int)len;
 256
 257
 258         return offset;
 259 }
 260
 261
 262 static int dissect_netsync_cmd_refine(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size)
 263 {
 264         proto_tree_add_item(tree, hf_netsync_cmd_refine_tree_node, tvb,
 265                                 offset, size, ENC_NA );
 266         offset += size;
 267
 268         return offset;
 269 }
 270
 271
 272 static int dissect_netsync_cmd_done(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 273 {
 274         int bytes = 0;
 275
 276         proto_tree_add_item_ret_length(tree, hf_netsync_cmd_done_level, tvb,
 277                                         offset, -1, ENC_LITTLE_ENDIAN|ENC_VARINT_PROTOBUF, &bytes);
 278         offset += bytes;
 279
 280         proto_tree_add_item(tree, hf_netsync_cmd_done_type, tvb,
 281                                 offset, 1, ENC_BIG_ENDIAN );
 282         offset += 1;
 283
 284         return offset;
 285 }
 286
 287
 288 static int dissect_netsync_cmd_send_data(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 289 {
 290         proto_tree_add_item(tree, hf_netsync_cmd_send_data_type, tvb,
 291                                         offset, 1, ENC_BIG_ENDIAN );
 292         offset += 1;
 293
 294         proto_tree_add_item(tree, hf_netsync_cmd_send_data_id, tvb,
 295                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 296         offset += NETSNYC_MERKLE_HASH_LENGTH;
 297
 298         return offset;
 299 }
 300
 301
 302 static int dissect_netsync_cmd_send_delta(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 303 {
 304         proto_tree_add_item(tree, hf_netsync_cmd_send_delta_type, tvb,
 305                                         offset, 1, ENC_BIG_ENDIAN );
 306         offset += 1;
 307
 308         proto_tree_add_item(tree, hf_netsync_cmd_send_delta_base_id, tvb,
 309                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 310         offset += NETSNYC_MERKLE_HASH_LENGTH;
 311
 312
 313         proto_tree_add_item(tree, hf_netsync_cmd_send_delta_ident_id, tvb,
 314                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 315         offset += NETSNYC_MERKLE_HASH_LENGTH;
 316
 317         return offset;
 318 }
 319
 320
 321 static int dissect_netsync_cmd_data(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 322 {
 323         uint64_t len = 0;
 324
 325         proto_tree_add_item(tree, hf_netsync_cmd_data_type, tvb,
 326                                 offset, 1, ENC_BIG_ENDIAN );
 327         offset += 1;
 328
 329         proto_tree_add_item(tree, hf_netsync_cmd_data_id, tvb,
 330                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 331         offset += NETSNYC_MERKLE_HASH_LENGTH;
 332
 333         proto_tree_add_item(tree, hf_netsync_cmd_data_compressed, tvb,
 334                                 offset, 1, ENC_BIG_ENDIAN );
 335         offset += 1;
 336
 337         offset += tvb_get_varint( tvb, offset, FT_VARINT_MAX_LEN, &len, ENC_VARINT_PROTOBUF );
 338         proto_tree_add_item(tree, hf_netsync_cmd_data_payload, tvb,
 339                                 offset, (int)len, ENC_NA );
 340         offset += (int)len;
 341
 342         return offset;
 343 }
 344
 345
 346 static int dissect_netsync_cmd_delta(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 347 {
 348         uint64_t len = 0;
 349
 350         proto_tree_add_item(tree, hf_netsync_cmd_delta_type, tvb,
 351                                 offset, 1, ENC_BIG_ENDIAN );
 352         offset += 1;
 353
 354         proto_tree_add_item(tree, hf_netsync_cmd_delta_base_id, tvb,
 355                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 356         offset += NETSNYC_MERKLE_HASH_LENGTH;
 357
 358         proto_tree_add_item(tree, hf_netsync_cmd_delta_ident_id, tvb,
 359                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 360         offset += NETSNYC_MERKLE_HASH_LENGTH;
 361
 362         proto_tree_add_item(tree, hf_netsync_cmd_delta_compressed, tvb,
 363                                 offset, 1, ENC_BIG_ENDIAN );
 364         offset += 1;
 365
 366         offset += tvb_get_varint( tvb, offset, FT_VARINT_MAX_LEN, &len, ENC_VARINT_PROTOBUF );
 367         proto_tree_add_item(tree, hf_netsync_cmd_delta_payload, tvb,
 368                                 offset, (int)len, ENC_NA );
 369         offset += (int)len;
 370
 371         return offset;
 372 }
 373
 374
 375 static int dissect_netsync_cmd_nonexistent(tvbuff_t *tvb,  int offset, proto_tree *tree, unsigned size _U_)
 376 {
 377         proto_tree_add_item(tree, hf_netsync_cmd_nonexistent_type, tvb,
 378                                 offset, 1, ENC_BIG_ENDIAN );
 379         offset += 1;
 380
 381         proto_tree_add_item(tree, hf_netsync_cmd_nonexistent_id, tvb,
 382                                 offset, NETSNYC_MERKLE_HASH_LENGTH, ENC_NA );
 383         offset += NETSNYC_MERKLE_HASH_LENGTH;
 384
 385         return offset;
 386 }
 387
 388 static unsigned
 389 get_netsync_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_)
 390 {
 391         uint64_t size = 0;
 392         unsigned   size_bytes;
 393
 394         /* skip version and command */
 395         offset += 2;
 396
 397         size_bytes = tvb_get_varint( tvb, offset, FT_VARINT_MAX_LEN, &size, ENC_VARINT_PROTOBUF );
 398
 399         /* the calculated size if for the data only, this doesn't
 400          * include the version (1 byte), command (1 byte),
 401          * length (size_bytes bytes) and checksum (4 bytes)
 402          */
 403
 404         return 1 + 1 + size_bytes + (unsigned)size + 4;
 405 }
 406
 407 static int
 408 dissect_netsync_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
 409 {
 410         int offset = 0;
 411         uint8_t tmp;
 412         uint8_t cmd, version;
 413         uint32_t size, size_bytes, shift;
 414         proto_tree *ti,*netsync_tree=NULL;
 415
 416         /* Set the protocol column */
 417         col_set_str(pinfo->cinfo, COL_PROTOCOL, "Netsync");
 418
 419         if (tree == NULL)
 420                 return tvb_captured_length(tvb);
 421
 422         while (tvb_reported_length_remaining(tvb, offset)  > 0) {
 423                 ti = proto_tree_add_item(tree, proto_netsync, tvb, offset, -1, ENC_NA);
 424                 netsync_tree = proto_item_add_subtree(ti, ett_netsync);
 425
 426                 version = tvb_get_uint8(tvb, offset);
 427                 proto_tree_add_item(netsync_tree, hf_netsync_version, tvb,
 428                                         offset, 1, ENC_BIG_ENDIAN );
 429                 offset += 1;
 430
 431                 cmd = tvb_get_uint8(tvb, offset);
 432                 proto_tree_add_item(netsync_tree, hf_netsync_command, tvb,
 433                                         offset, 1, ENC_BIG_ENDIAN );
 434                 offset += 1;
 435
 436
 437                 /* get size */
 438                 size = 0;
 439                 size_bytes = 0;
 440                 shift = 0;
 441                 do {
 442                         tmp = tvb_get_uint8(tvb, offset + size_bytes);
 443                         size_bytes += 1;
 444
 445                         size |= (tmp & 0x7F) << shift;
 446                         shift += 7;
 447                 } while ((tmp & 0x80) && (shift < 32));
 448
 449
 450                 proto_tree_add_uint(netsync_tree, hf_netsync_size, tvb,
 451                                     offset, size_bytes, size );
 452                 offset += size_bytes;
 453
 454                 switch (cmd) {
 455                         case NETSYNC_CMD_DONE:
 456                                 dissect_netsync_cmd_done( tvb, offset, netsync_tree, size );
 457                                 break;
 458
 459                         case NETSYNC_CMD_ERROR:
 460                                 dissect_netsync_cmd_error( tvb, offset, netsync_tree, size );
 461                                 break;
 462
 463                         case NETSYNC_CMD_BYE:
 464                                 dissect_netsync_cmd_bye( tvb, offset, netsync_tree, size );
 465                                 break;
 466
 467                         case NETSYNC_CMD_HELLO:
 468                                 dissect_netsync_cmd_hello( tvb, offset, netsync_tree, size );
 469                                 break;
 470
 471                         case NETSYNC_CMD_ANONYMOUS:
 472                                 dissect_netsync_cmd_anonymous( tvb, offset, netsync_tree, size );
 473                                 break;
 474
 475                         case NETSYNC_CMD_AUTH:
 476                                 dissect_netsync_cmd_auth( tvb, offset, netsync_tree, size );
 477                                 break;
 478
 479                         case NETSYNC_CMD_CONFIRM:
 480                                 dissect_netsync_cmd_confirm( tvb, offset, netsync_tree, size );
 481                                 break;
 482
 483                         case NETSYNC_CMD_REFINE:
 484                                 dissect_netsync_cmd_refine( tvb, offset, netsync_tree, size );
 485                                 break;
 486
 487                         case NETSYNC_CMD_SEND_DATA:
 488                                 dissect_netsync_cmd_send_data( tvb, offset, netsync_tree, size );
 489                                 break;
 490
 491                         case NETSYNC_CMD_SEND_DELTA:
 492                                 dissect_netsync_cmd_send_delta( tvb, offset, netsync_tree, size );
 493                                 break;
 494
 495                         case NETSYNC_CMD_DATA:
 496                                 dissect_netsync_cmd_data( tvb, offset, netsync_tree, size );
 497                                 break;
 498
 499                         case NETSYNC_CMD_DELTA:
 500                                 dissect_netsync_cmd_delta( tvb, offset, netsync_tree, size );
 501                                 break;
 502
 503                         case NETSYNC_CMD_NONEXISTENT:
 504                                 dissect_netsync_cmd_nonexistent( tvb, offset, netsync_tree, size );
 505                                 break;
 506
 507                         default:
 508                                 proto_tree_add_item(netsync_tree, hf_netsync_data, tvb,
 509                                         offset, size, ENC_NA );
 510                                 break;
 511                 }
 512
 513                 offset += size;
 514
 515                 proto_tree_add_checksum(netsync_tree, tvb, offset, hf_netsync_checksum,
 516                                         -1, NULL, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS );
 517                 offset += 4;
 518
 519
 520                 proto_item_append_text(netsync_tree, " V%d, Cmd: %s (%d), Size: %d",
 521                                         version, val_to_str(cmd, netsync_cmd_vals, "(0x%x)"), cmd, size );
 522
 523                 proto_item_set_len(netsync_tree, 1+1+size_bytes+size+4);
 524         }
 525
 526         return tvb_captured_length(tvb);
 527 }
 528
 529 static int
 530 dissect_netsync(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
 531 {
 532         tcp_dissect_pdus(tvb, pinfo, tree, netsync_desegment, 7, get_netsync_pdu_len,
 533                                         dissect_netsync_pdu, data);
 534         return tvb_captured_length(tvb);
 535 }
 536
 537 void
 538 proto_register_netsync(void)
 539 {
 540         static hf_register_info hf[] = {
 541                 /* General */
 542                 { &hf_netsync_version,
 543                         { "Version", "netsync.version",
 544                           FT_UINT8, BASE_DEC, NULL, 0x0,
 545                           NULL, HFILL } },
 546                 { &hf_netsync_command,
 547                         { "Command", "netsync.command",
 548                           FT_UINT8, BASE_HEX, VALS(netsync_cmd_vals), 0x0,
 549                           NULL, HFILL } },
 550                 { &hf_netsync_size,
 551                         { "Size", "netsync.size",
 552                           FT_UINT32, BASE_DEC, NULL, 0x0,
 553                           NULL, HFILL } },
 554                 { &hf_netsync_data,
 555                         { "Data", "netsync.data",
 556                           FT_BYTES, BASE_NONE, NULL, 0x0,
 557                           NULL, HFILL } },
 558                 { &hf_netsync_checksum,
 559                         { "Checksum", "netsync.checksum",
 560                           FT_UINT32, BASE_HEX, NULL, 0x0,
 561                           NULL, HFILL } },
 562                 { &hf_netsync_cmd_hello_keyname,
 563                         { "Key Name", "netsync.cmd.hello.keyname",
 564                           FT_STRING, BASE_NONE, NULL, 0x0,
 565                           NULL, HFILL } },
 566                 { &hf_netsync_cmd_hello_key,
 567                         { "Key", "netsync.cmd.hello.key",
 568                           FT_BYTES, BASE_NONE, NULL, 0x0,
 569                           NULL, HFILL } },
 570                 { &hf_netsync_cmd_nonce,
 571                         { "Nonce", "netsync.cmd.nonce",
 572                           FT_BYTES, BASE_NONE, NULL, 0x0,
 573                           NULL, HFILL } },
 574                 { &hf_netsync_cmd_anonymous_role,
 575                         { "Role", "netsync.cmd.anonymous.role",
 576                           FT_UINT8, BASE_DEC, VALS(netsync_role_vals), 0x0,
 577                           NULL, HFILL } },
 578                 { &hf_netsync_cmd_anonymous_collection,
 579                         { "Collection", "netsync.cmd.anonymous.collection",
 580                           FT_STRING, BASE_NONE, NULL, 0x0,
 581                           NULL, HFILL } },
 582                 { &hf_netsync_cmd_confirm_sig,
 583                         { "Signature", "netsync.cmd.confirm.signature",
 584                           FT_BYTES, BASE_NONE, NULL, 0x0,
 585                           NULL, HFILL } },
 586                 { &hf_netsync_cmd_send_data_type,
 587                         { "Type", "netsync.cmd.send_data.type",
 588                           FT_UINT8, BASE_DEC, NULL, 0x0,
 589                           NULL, HFILL } },
 590                 { &hf_netsync_cmd_send_data_id,
 591                         { "ID", "netsync.cmd.send_data.id",
 592                           FT_BYTES, BASE_NONE, NULL, 0x0,
 593                           NULL, HFILL } },
 594                 { &hf_netsync_cmd_error_msg,
 595                         { "Message", "netsync.cmd.error.msg",
 596                           FT_STRING, BASE_NONE, NULL, 0x0,
 597                           NULL, HFILL } },
 598
 599                 { &hf_netsync_cmd_done_level,
 600                         { "Level", "netsync.cmd.done.level",
 601                           FT_UINT32, BASE_DEC, NULL, 0x0,
 602                           NULL, HFILL } },
 603                 { &hf_netsync_cmd_auth_role,
 604                         { "Role", "netsync.cmd.auth.role",
 605                           FT_UINT8, BASE_DEC, VALS(netsync_role_vals), 0x0,
 606                           NULL, HFILL } },
 607                 { &hf_netsync_cmd_auth_collection,
 608                         { "Collection", "netsync.cmd.auth.collection",
 609                           FT_STRING, BASE_NONE, NULL, 0x0,
 610                           NULL, HFILL } },
 611                 { &hf_netsync_cmd_auth_id,
 612                         { "ID", "netsync.cmd.auth.id",
 613                           FT_BYTES, BASE_NONE, NULL, 0x0,
 614                           NULL, HFILL } },
 615                 { &hf_netsync_cmd_auth_nonce1,
 616                         { "Nonce 1", "netsync.cmd.auth.nonce1",
 617                           FT_BYTES, BASE_NONE, NULL, 0x0,
 618                           NULL, HFILL } },
 619                 { &hf_netsync_cmd_auth_nonce2,
 620                         { "Nonce 2", "netsync.cmd.auth.nonce2",
 621                           FT_BYTES, BASE_NONE, NULL, 0x0,
 622                           NULL, HFILL } },
 623                 { &hf_netsync_cmd_auth_sig,
 624                         { "Signature", "netsync.cmd.auth.sig",
 625                           FT_BYTES, BASE_NONE, NULL, 0x0,
 626                           NULL, HFILL } },
 627                 { &hf_netsync_cmd_data_type,
 628                         { "Type", "netsync.cmd.data.type",
 629                           FT_UINT8, BASE_DEC, NULL, 0x0,
 630                           NULL, HFILL } },
 631                 { &hf_netsync_cmd_data_id,
 632                         { "ID", "netsync.cmd.data.id",
 633                           FT_BYTES, BASE_NONE, NULL, 0x0,
 634                           NULL, HFILL } },
 635                 { &hf_netsync_cmd_data_compressed,
 636                         { "Compressed", "netsync.cmd.data.compressed",
 637                           FT_UINT8, BASE_DEC, NULL, 0x0,
 638                           NULL, HFILL } },
 639                 { &hf_netsync_cmd_data_payload,
 640                         { "Payload", "netsync.cmd.data.payload",
 641                           FT_BYTES, BASE_NONE, NULL, 0x0,
 642                           NULL, HFILL } },
 643                 { &hf_netsync_cmd_delta_type,
 644                         { "Type", "netsync.cmd.delta.type",
 645                           FT_UINT8, BASE_DEC, NULL, 0x0,
 646                           NULL, HFILL } },
 647                 { &hf_netsync_cmd_delta_base_id,
 648                         { "Base ID", "netsync.cmd.delta.base_id",
 649                           FT_BYTES, BASE_NONE, NULL, 0x0,
 650                           NULL, HFILL } },
 651                 { &hf_netsync_cmd_delta_ident_id,
 652                         { "Ident ID", "netsync.cmd.delta.ident_id",
 653                           FT_BYTES, BASE_NONE, NULL, 0x0,
 654                           NULL, HFILL } },
 655                 { &hf_netsync_cmd_delta_compressed,
 656                         { "Compressed", "netsync.cmd.delta.compressed",
 657                           FT_UINT8, BASE_DEC, NULL, 0x0,
 658                           NULL, HFILL } },
 659                 { &hf_netsync_cmd_delta_payload,
 660                         { "Payload", "netsync.cmd.delta.payload",
 661                           FT_BYTES, BASE_NONE, NULL, 0x0,
 662                           NULL, HFILL } },
 663                 { &hf_netsync_cmd_refine_tree_node,
 664                         { "Tree Node", "netsync.cmd.refine.tree_node",
 665                           FT_BYTES, BASE_NONE, NULL, 0x0,
 666                           NULL, HFILL } },
 667                 { &hf_netsync_cmd_send_delta_type,
 668                         { "Type", "netsync.cmd.send_delta.type",
 669                           FT_UINT8, BASE_DEC, NULL, 0x0,
 670                           NULL, HFILL } },
 671                 { &hf_netsync_cmd_send_delta_base_id,
 672                         { "Base ID", "netsync.cmd.send_delta.base_id",
 673                           FT_BYTES, BASE_NONE, NULL, 0x0,
 674                           NULL, HFILL } },
 675                 { &hf_netsync_cmd_send_delta_ident_id,
 676                         { "Ident ID", "netsync.cmd.send_delta.ident_id",
 677                           FT_BYTES, BASE_NONE, NULL, 0x0,
 678                           NULL, HFILL } },
 679                 { &hf_netsync_cmd_nonexistent_id,
 680                         { "ID", "netsync.cmd.nonexistent.id",
 681                           FT_BYTES, BASE_NONE, NULL, 0x0,
 682                           NULL, HFILL } },
 683                 { &hf_netsync_cmd_nonexistent_type,
 684                         { "Type", "netsync.cmd.nonexistent.type",
 685                           FT_UINT8, BASE_DEC, NULL, 0x0,
 686                           NULL, HFILL } },
 687                 { &hf_netsync_cmd_done_type,
 688                         { "Type", "netsync.cmd.done.type",
 689                           FT_UINT8, BASE_DEC, NULL, 0x0,
 690                           NULL, HFILL } }
 691
 692
 693         };
 694
 695         static int *ett[] = {
 696                 &ett_netsync,
 697         };
 698
 699         module_t *netsync_module;
 700
 701         proto_netsync = proto_register_protocol("Monotone Netsync", "Netsync", "netsync");
 702         proto_register_field_array(proto_netsync, hf, array_length(hf));
 703         proto_register_subtree_array(ett, array_length(ett));
 704
 705         netsync_module = prefs_register_protocol(proto_netsync, NULL);
 706
 707         prefs_register_bool_preference(netsync_module, "desegment_netsync_messages",
 708                 "Reassemble Netsync messages spanning multiple TCP segments",
 709                 "Whether the Netsync dissector should reassemble messages spanning multiple TCP segments."
 710                 " To use this option, you must also enable \"Allow subdissectors to reassemble TCP streams\" in the TCP protocol settings.",
 711                 &netsync_desegment);
 712
 713         netsync_handle = register_dissector("netsync", dissect_netsync, proto_netsync);
 714 }
 715
 716 void
 717 proto_reg_handoff_netsync(void)
 718 {
 719         dissector_add_uint_with_preference("tcp.port", TCP_PORT_NETSYNC, netsync_handle);
 720 }
 721
 722 /*
 723  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
 724  *
 725  * Local variables:
 726  * c-basic-offset: 8
 727  * tab-width: 8
 728  * indent-tabs-mode: t
 729  * End:
 730  *
 731  * vi: set shiftwidth=8 tabstop=8 noexpandtab:
 732  * :indentSize=8:tabSize=8:noTabs=false:
 733  */