packet-smb-logon.c

   1 /* packet-smb-logon.c
   2  * Routines for SMB net logon packet dissection
   3  * Copyright 2000, Jeffrey C. Foster <jfoste@woodward.com>
   4  *
   5  * $Id: packet-smb-logon.c,v 1.33 2003/05/21 10:16:10 sahlberg Exp $
   6  *
   7  * Ethereal - Network traffic analyzer
   8  * By Gerald Combs <gerald@ethereal.com>
   9  * Copyright 1998 Gerald Combs
  10  *
  11  * Copied from packet-pop.c
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, write to the Free Software
  25  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  26  */
  27
  28 #include "packet-smb-common.h"
  29 #include "packet-smb-logon.h"
  30
  31 static int proto_smb_logon = -1;
  32 static int hf_command = -1;
  33 static int hf_computer_name = -1;
  34 static int hf_unicode_computer_name = -1;
  35 static int hf_server_name = -1;
  36 static int hf_user_name = -1;
  37 static int hf_domain_name = -1;
  38 static int hf_mailslot_name = -1;
  39 static int hf_pdc_name = -1;
  40 static int hf_unicode_pdc_name = -1;
  41 static int hf_script_name = -1;
  42 static int hf_nt_version = -1;
  43 static int hf_lmnt_token = -1;
  44 static int hf_lm_token = -1;
  45 static int hf_major_version = -1;
  46 static int hf_minor_version = -1;
  47 static int hf_os_version = -1;
  48 static int hf_date_time = -1;
  49 static int hf_update_type = -1;
  50 static int hf_request_count = -1;
  51 static int hf_flags_autolock = -1;
  52 static int hf_flags_expire = -1;
  53 static int hf_flags_server_trust = -1;
  54 static int hf_flags_workstation_trust = -1;
  55 static int hf_flags_interdomain_trust = -1;
  56 static int hf_flags_mns_user = -1;
  57 static int hf_flags_normal_user = -1;
  58 static int hf_flags_temp_dup_user = -1;
  59 static int hf_flags_password_required = -1;
  60 static int hf_flags_homedir_required = -1;
  61 static int hf_flags_enabled = -1;
  62 static int hf_domain_sid_size = -1;
  63 static int hf_low_serial = -1;
  64 static int hf_pulse = -1;
  65 static int hf_random = -1;
  66 static int hf_db_count = -1;
  67 static int hf_db_index = -1;
  68 static int hf_large_serial = -1;
  69 static int hf_nt_date_time = -1;
  70
  71 static int ett_smb_logon = -1;
  72 static int ett_smb_account_flags = -1;
  73 static int ett_smb_db_info = -1;
  74
  75 #define ACC_FLAG_AUTO_LOCKED                    0x0400
  76 #define ACC_FLAG_EXPIRE                         0x0200
  77 #define ACC_FLAG_SERVER_TRUST                   0x0100
  78 #define ACC_FLAG_WORKSTATION_TRUST              0x0080
  79 #define ACC_FLAG_INTERDOMAIN_TRUST              0x0040
  80 #define ACC_FLAG_MNS_USER                       0x0020
  81 #define ACC_FLAG_NORMAL_USER                    0x0010
  82 #define ACC_FLAG_TEMP_DUP_USER                  0x0008
  83 #define ACC_FLAG_PASSWORD_REQUIRED              0x0004
  84 #define ACC_FLAG_HOMEDIR_REQUIRED               0x0002
  85 #define ACC_FLAG_ENABLED                        0x0001
  86
  87 static const true_false_string tfs_flags_autolock = {
  88         "User account auto-locked",
  89         "User account NOT auto-locked"
  90 };
  91 static const true_false_string tfs_flags_expire = {
  92         "User password will NOT expire",
  93         "User password will expire"
  94 };
  95 static const true_false_string tfs_flags_server_trust = {
  96         "Server Trust user account",
  97         "NOT a Server Trust user account"
  98 };
  99 static const true_false_string tfs_flags_workstation_trust = {
 100         "Workstation Trust user account",
 101         "NOT a Workstation Trust user account"
 102 };
 103 static const true_false_string tfs_flags_interdomain_trust = {
 104         "Inter-domain Trust user account",
 105         "NOT a Inter-domain Trust user account"
 106 };
 107 static const true_false_string tfs_flags_mns_user = {
 108         "MNS Logon user account",
 109         "NOT a MNS Logon user account"
 110 };
 111 static const true_false_string tfs_flags_normal_user = {
 112         "Normal user account",
 113         "NOT a normal user account"
 114 };
 115 static const true_false_string tfs_flags_temp_dup_user = {
 116         "Temp duplicate user account",
 117         "NOT a temp duplicate user account"
 118 };
 119 static const true_false_string tfs_flags_password_required = {
 120         "NO password required",
 121         "Password required"
 122 };
 123 static const true_false_string tfs_flags_homedir_required = {
 124         "NO homedir required",
 125         "Homedir required"
 126 };
 127 static const true_false_string tfs_flags_enabled = {
 128         "User account enabled",
 129         "User account disabled"
 130 };
 131
 132
 133
 134 static int
 135 dissect_account_control(tvbuff_t *tvb, proto_tree *tree, int offset)
 136 {
 137         /* display the Allowable Account control bits */
 138
 139         proto_item *ti = NULL;
 140         proto_tree *flags_tree = NULL;
 141         guint32 flags;
 142
 143         flags = tvb_get_letohl(tvb, offset);
 144
 145         if (tree) {
 146                 ti = proto_tree_add_text(tree, tvb, offset, 4,
 147                         "Account control  = 0x%04x", flags);
 148
 149                 flags_tree = proto_item_add_subtree(ti, ett_smb_account_flags);
 150         }
 151
 152         proto_tree_add_boolean(flags_tree, hf_flags_autolock, tvb, offset, 4, flags);
 153         proto_tree_add_boolean(flags_tree, hf_flags_expire, tvb, offset, 4, flags);
 154         proto_tree_add_boolean(flags_tree, hf_flags_server_trust, tvb, offset, 4, flags);
 155         proto_tree_add_boolean(flags_tree, hf_flags_workstation_trust, tvb, offset, 4, flags);
 156         proto_tree_add_boolean(flags_tree, hf_flags_interdomain_trust, tvb, offset, 4, flags);
 157         proto_tree_add_boolean(flags_tree, hf_flags_mns_user, tvb, offset, 4, flags);
 158         proto_tree_add_boolean(flags_tree, hf_flags_normal_user, tvb, offset, 4, flags);
 159         proto_tree_add_boolean(flags_tree, hf_flags_temp_dup_user, tvb, offset, 4, flags);
 160         proto_tree_add_boolean(flags_tree, hf_flags_password_required, tvb, offset, 4, flags);
 161         proto_tree_add_boolean(flags_tree, hf_flags_homedir_required, tvb, offset, 4, flags);
 162         proto_tree_add_boolean(flags_tree, hf_flags_enabled, tvb, offset, 4, flags);
 163
 164         offset += 4;
 165
 166         return offset;
 167 }
 168
 169 static int
 170 display_LM_token(tvbuff_t *tvb, int offset, proto_tree *tree)
 171 {
 172         guint16 Token;
 173
 174         Token = tvb_get_letohs(tvb, offset);
 175
 176         if (Token & 0x01) {
 177                 proto_tree_add_uint_format(tree, hf_lm_token, tvb, offset, 2,
 178                         Token,
 179                         "LM20 Token: 0x%04x (LanMan 2.0 or higher)", Token);
 180         } else {
 181                 /*
 182                  * XXX - are all values with the lower bit set LM 2.0,
 183                  * and all values with it not set LM 1.0?
 184                  * What do the other bits mean, if anything?
 185                  */
 186                 proto_tree_add_uint_format(tree, hf_lm_token, tvb, offset, 2,
 187                         Token,
 188                         "LM10 Token: 0x%04x (WFW Networking)", Token);
 189         }
 190
 191         offset += 2;
 192
 193         return offset;
 194 }
 195
 196 static int
 197 display_LMNT_token(tvbuff_t *tvb, int offset, proto_tree *tree)
 198 {
 199         guint16 Token;
 200
 201         Token = tvb_get_letohs(tvb, offset);
 202
 203         if (Token == 0xffff) {
 204                 proto_tree_add_uint_format(tree, hf_lmnt_token, tvb, offset, 2,
 205                         Token,
 206                         "LMNT Token: 0x%04x (Windows NT Networking)", Token);
 207         } else {
 208                 /*
 209                  * XXX - what is it if it's not 0xffff?
 210                  */
 211                 proto_tree_add_uint_format(tree, hf_lm_token, tvb, offset, 2,
 212                         Token,
 213                         "LMNT Token: 0x%04x (Unknown)", Token);
 214         }
 215
 216         offset += 2;
 217
 218         return offset;
 219 }
 220
 221 static int
 222 dissect_smb_logon_request(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 223 {
 224         /*** 0x00 (LM1.0/LM2.0 LOGON Request) ***/
 225
 226         /* computer name */
 227         offset = display_ms_string(tvb, tree, offset, hf_computer_name, NULL);
 228
 229         /* user name */
 230         offset = display_ms_string(tvb, tree, offset, hf_user_name, NULL);
 231
 232         /* mailslot name */
 233         offset = display_ms_string(tvb, tree, offset, hf_mailslot_name, NULL);
 234
 235         /*$$$$$ here add the Mailslot to the response list (if needed) */
 236
 237         /* Request count */
 238         proto_tree_add_item(tree, hf_request_count, tvb, offset, 1, TRUE);
 239         offset += 1;
 240
 241         /* NT version */
 242         proto_tree_add_item(tree, hf_nt_version, tvb, offset, 2, TRUE);
 243         offset += 2;
 244
 245         /* LM token */
 246         offset = display_LM_token(tvb, offset, tree);
 247
 248         return offset;
 249 }
 250
 251
 252
 253 static int
 254 dissect_smb_logon_LM10_resp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 255 {
 256         /*** 0x01 LanMan 1.0 Logon response ***/
 257
 258         /* user name */
 259         offset = display_ms_string(tvb, tree, offset, hf_user_name, NULL);
 260
 261         /* script name */
 262         offset = display_ms_string(tvb, tree, offset, hf_script_name, NULL);
 263
 264         return offset;
 265 }
 266
 267
 268 static int
 269 dissect_smb_logon_2(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 270 {
 271         /*** 0x02  LM1.0 Query - Centralized Initialization ***/
 272         /*** 0x03  LM1.0 Query - Distributed Initialization ***/
 273         /*** 0x04  LM1.0 Query - Centralized Query Response ***/
 274         /*** 0x04  LM1.0 Query - Distributed Query Response ***/
 275
 276         /* computer name */
 277         offset = display_ms_string(tvb, tree, offset, hf_computer_name, NULL);
 278
 279         /* mailslot name */
 280         offset = display_ms_string(tvb, tree, offset, hf_mailslot_name, NULL);
 281
 282         /* NT version */
 283         proto_tree_add_item(tree, hf_nt_version, tvb, offset, 2, TRUE);
 284         offset += 2;
 285
 286         /* LM token */
 287         offset = display_LM_token(tvb, offset, tree);
 288
 289         return offset;
 290 }
 291
 292
 293
 294 static int
 295 dissect_smb_logon_LM20_resp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 296 {
 297         /*** 0x06 (LM2.0 LOGON Response)        ***/
 298
 299         /* server name */
 300         offset = display_ms_string(tvb, tree, offset, hf_server_name, NULL);
 301
 302         /* LM token */
 303         offset = display_LM_token(tvb, offset, tree);
 304
 305         return offset;
 306 }
 307
 308
 309
 310 static int
 311 dissect_smb_pdc_query(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 312 {
 313         char *name = NULL;
 314
 315         /*** 0x07 Query for Primary PDC  ***/
 316
 317         /* computer name */
 318         offset = display_ms_string(tvb, tree, offset, hf_computer_name, &name);
 319
 320         if (name && check_col(pinfo->cinfo, COL_INFO)) {
 321                 col_append_fstr(pinfo->cinfo, COL_INFO, " from %s", name);
 322                 g_free(name);
 323                 name = NULL;
 324         }
 325
 326         /* mailslot name */
 327         offset = display_ms_string(tvb, tree, offset, hf_mailslot_name, NULL);
 328
 329         if (tvb_reported_length_remaining(tvb, offset) > 2) {
 330                 /*
 331                  * NT-style Query for PDC?
 332                  * If only 2 bytes remain, it's probably a Windows 95-style
 333                  * query, which has only an LM token after the mailslot
 334                  * name.
 335                  *
 336                  * XXX - base this on flags in the SMB header, e.g.
 337                  * the ASCII/Unicode strings flag?
 338                  */
 339                 if (offset % 2) offset++;      /* word align ... */
 340
 341                 /* Unicode computer name */
 342                 offset = display_unicode_string(tvb, tree, offset, hf_unicode_computer_name, NULL);
 343
 344                 /* NT version */
 345                 proto_tree_add_item(tree, hf_nt_version, tvb, offset, 4, TRUE);
 346                 offset += 4;
 347
 348                 /* LMNT token */
 349                 offset = display_LMNT_token(tvb, offset, tree);
 350         }
 351
 352         /* LM token */
 353         offset = display_LM_token(tvb, offset, tree);
 354
 355         return offset;
 356 }
 357
 358
 359
 360 static int
 361 dissect_smb_pdc_startup(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 362 {
 363         /*** 0x08  Announce startup of PDC ***/
 364
 365         /* pdc name */
 366         offset = display_ms_string(tvb, tree, offset, hf_pdc_name, NULL);
 367
 368         /* A short Announce will not have the rest */
 369
 370         if (tvb_reported_length_remaining(tvb, offset) != 0) {
 371           char *name = NULL;
 372
 373           if (offset % 2) offset++;      /* word align ... */
 374
 375           /* pdc name */
 376           offset = display_unicode_string(tvb, tree, offset, hf_unicode_pdc_name, &name);
 377
 378           if (name && check_col(pinfo->cinfo, COL_INFO)) {
 379                   col_append_fstr(pinfo->cinfo, COL_INFO, ": host %s", name);
 380                   g_free(name);
 381                   name = NULL;
 382           }
 383
 384           if (offset % 2) offset++;
 385
 386           /* domain name */
 387           offset = display_unicode_string(tvb, tree, offset, hf_domain_name, &name);
 388
 389           if (name && check_col(pinfo->cinfo, COL_INFO)) {
 390                   col_append_fstr(pinfo->cinfo, COL_INFO, ", domain %s", name);
 391                   g_free(name);
 392                   name = NULL;
 393           }
 394
 395           /* NT version */
 396           proto_tree_add_item(tree, hf_nt_version, tvb, offset, 4, TRUE);
 397           offset += 4;
 398
 399           /* LMNT token */
 400           offset = display_LMNT_token(tvb, offset, tree);
 401
 402           /* LM token */
 403           offset = display_LM_token(tvb, offset, tree);
 404         }
 405
 406         return offset;
 407 }
 408
 409
 410
 411 static int
 412 dissect_smb_pdc_failure(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 413 {
 414         /*** 0x09 Announce failure of the PDC ***/
 415         /*** 0x0F LM2.0 Resp. during LOGON pause ***/
 416         /*** 0x10 (LM 2.0 Unknown user response) ***/
 417
 418         /* NT version */
 419         proto_tree_add_item(tree, hf_nt_version, tvb, offset, 4, TRUE);
 420         offset += 4;
 421
 422         /* LM token */
 423         offset = display_LM_token(tvb, offset, tree);
 424
 425         return offset;
 426 }
 427
 428
 429 static int
 430 dissect_announce_change(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 431 {
 432         /*** 0x0A ( Announce change to UAS or SAM ) ***/
 433         guint32 info_count;
 434         proto_item *ti = NULL;
 435         proto_tree *info_tree = NULL;
 436         guint32 db_index;
 437         guint32 domain_sid_size;
 438
 439         /* low serial number */
 440         proto_tree_add_item(tree, hf_low_serial, tvb, offset, 4, TRUE);
 441         offset += 4;
 442
 443         /* date/time */
 444         /* XXX - what format is this?  Neither SMB_Date/SMB_Time nor
 445            "time_t but in the local time zone" appear to be correct. */
 446         proto_tree_add_item(tree, hf_date_time, tvb, offset, 4, TRUE);
 447         offset += 4;
 448
 449         /* pulse */
 450         proto_tree_add_item(tree, hf_pulse, tvb, offset, 4, TRUE);
 451         offset += 4;
 452
 453         /* random */
 454         proto_tree_add_item(tree, hf_random, tvb, offset, 4, TRUE);
 455         offset += 4;
 456
 457         /* pdc name */
 458         offset = display_ms_string(tvb, tree, offset, hf_pdc_name, NULL);
 459
 460         /* domain name */
 461         offset = display_ms_string(tvb, tree, offset, hf_domain_name, NULL);
 462
 463         if (offset % 2) offset++;      /* word align ... */
 464
 465         if (tvb_reported_length_remaining(tvb, offset) > 2) {
 466                 /*
 467                  * XXX - older protocol versions don't have this stuff?
 468                  */
 469                 /* pdc name */
 470                 offset = display_unicode_string(tvb, tree, offset, hf_unicode_pdc_name, NULL);
 471
 472                 /* domain name */
 473                 offset = display_unicode_string(tvb, tree, offset, hf_domain_name, NULL);
 474
 475                 /* DB count */
 476                 info_count = tvb_get_letohl(tvb, offset);
 477                 proto_tree_add_uint(tree, hf_db_count, tvb, offset, 4, info_count);
 478                 offset += 4;
 479
 480                 while (info_count != 0) {
 481                         db_index = tvb_get_letohl(tvb, offset);
 482                         if (tree) {
 483                                 ti = proto_tree_add_text(tree, tvb, offset, 20,
 484                                     "DBChange Info Structure: index %u", db_index);
 485                                 info_tree = proto_item_add_subtree(ti, ett_smb_db_info);
 486                         }
 487
 488                         proto_tree_add_uint(info_tree, hf_db_index, tvb, offset, 4,
 489                             db_index);
 490                         offset += 4;
 491
 492                         proto_tree_add_item(info_tree, hf_large_serial, tvb, offset, 8,
 493                             TRUE);
 494                         offset += 8;
 495
 496                         offset = dissect_smb_64bit_time(tvb, info_tree, offset,
 497                             hf_nt_date_time);
 498
 499                         info_count--;
 500                 }
 501
 502                 /* Domain SID Size */
 503                 domain_sid_size = tvb_get_letohl(tvb, offset);
 504                 proto_tree_add_uint(tree, hf_domain_sid_size, tvb, offset, 4,
 505                     domain_sid_size);
 506                 offset += 4;
 507
 508                 if (domain_sid_size != 0) {
 509                         /* Align to four-byte boundary */
 510                         offset = ((offset + 3)/4)*4;
 511
 512                         /* Domain SID */
 513                         offset = dissect_nt_sid(
 514                                 tvb, offset, tree, "Domain", NULL, -1);
 515                 }
 516
 517                 /* NT version */
 518                 proto_tree_add_item(tree, hf_nt_version, tvb, offset, 4, TRUE);
 519                 offset += 4;
 520
 521                 /* LMNT token */
 522                 offset = display_LMNT_token(tvb, offset, tree);
 523         }
 524
 525         /* LM token */
 526         offset = display_LM_token(tvb, offset, tree);
 527
 528         return offset;
 529 }
 530
 531
 532
 533 static int
 534 dissect_smb_sam_logon_req(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 535 {
 536         /* Netlogon command 0x12 - decode the SAM logon request from client */
 537
 538         guint32 domain_sid_size;
 539
 540         /* Request count */
 541         proto_tree_add_item(tree, hf_request_count, tvb, offset, 2, TRUE);
 542         offset += 2;
 543
 544         /* computer name */
 545         offset = display_unicode_string(tvb, tree, offset, hf_unicode_computer_name, NULL);
 546
 547         /* user name */
 548         offset = display_unicode_string(tvb, tree, offset, hf_user_name, NULL);
 549
 550         /* mailslot name */
 551         offset = display_ms_string(tvb, tree, offset, hf_mailslot_name, NULL);
 552
 553         /* account control */
 554         offset = dissect_account_control(tvb, tree, offset);
 555
 556         /* Domain SID Size */
 557         domain_sid_size = tvb_get_letohl(tvb, offset);
 558         proto_tree_add_uint(tree, hf_domain_sid_size, tvb, offset, 4,
 559             domain_sid_size);
 560         offset += 4;
 561
 562         if (domain_sid_size != 0) {
 563                 /* Align to four-byte boundary */
 564                 offset = ((offset + 3)/4)*4;
 565
 566                 /* Domain SID */
 567                 offset = dissect_nt_sid(tvb, offset, tree, "Domain", NULL, -1);
 568         }
 569
 570         /* NT version */
 571         proto_tree_add_item(tree, hf_nt_version, tvb, offset, 4, TRUE);
 572         offset += 4;
 573
 574         /* LMNT token */
 575         offset = display_LMNT_token(tvb, offset, tree);
 576
 577         /* LM token */
 578         offset = display_LM_token(tvb, offset, tree);
 579
 580         return offset;
 581 }
 582
 583
 584
 585 static int
 586 dissect_smb_no_user(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 587 {
 588         /* 0x0B (Announce no user on machine) */
 589
 590         /* computer name */
 591         offset = display_ms_string(tvb, tree, offset, hf_computer_name, NULL);
 592
 593         return offset;
 594 }
 595
 596
 597
 598 static int
 599 dissect_smb_relogon_resp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 600 {
 601         /*** 0x0d LanMan Response to relogon request ***/
 602
 603         /* Major version */
 604         proto_tree_add_item(tree, hf_major_version, tvb, offset, 1, TRUE);
 605         offset += 1;
 606
 607         /* Minor version */
 608         proto_tree_add_item(tree, hf_minor_version, tvb, offset, 1, TRUE);
 609         offset += 1;
 610
 611         /* OS version */
 612         proto_tree_add_item(tree, hf_os_version, tvb, offset, 1, TRUE);
 613         offset += 1;
 614
 615         /* NT version */
 616         proto_tree_add_item(tree, hf_nt_version, tvb, offset, 4, TRUE);
 617         offset += 4;
 618
 619         /* LM token */
 620         offset = display_LM_token(tvb, offset, tree);
 621
 622         return offset;
 623 }
 624
 625
 626
 627 static int
 628 dissect_smb_acc_update(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 629 {
 630         /*** 0x11  LM2.1 Announce Acc updates  ***/
 631
 632         guint32 Temp1, Temp2;
 633
 634         Temp1 = tvb_get_letohl(tvb, offset);
 635         Temp2 = tvb_get_letohl(tvb, offset + 4);
 636
 637         /* signature */
 638         proto_tree_add_text(tree, tvb, offset, 8, "Signature: 0x%08x%08x",
 639                 Temp1, Temp2);
 640         offset += 8;
 641
 642         /* date/time */
 643         /* XXX - what format is this?  Neither SMB_Date/SMB_Time nor
 644            "time_t but in the local time zone" appear to be correct. */
 645         proto_tree_add_item(tree, hf_date_time, tvb, offset, 4, TRUE);
 646         offset += 4;
 647
 648         /* computer name */
 649         offset = display_ms_string(tvb, tree, offset, hf_computer_name, NULL);
 650
 651         /* user name */
 652         offset = display_ms_string(tvb, tree, offset, hf_user_name, NULL);
 653
 654         /* update type */
 655         proto_tree_add_item(tree, hf_update_type, tvb, offset, 2, TRUE);
 656         offset += 2;
 657
 658         /* NT version */
 659         proto_tree_add_item(tree, hf_nt_version, tvb, offset, 4, TRUE);
 660         offset += 4;
 661
 662         /* LM token */
 663         offset = display_LM_token(tvb, offset, tree);
 664
 665         return offset;
 666 }
 667
 668
 669
 670 static int
 671 dissect_smb_inter_resp(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, int offset)
 672 {
 673         /* 0x0e LanMan Response to interrogate request */
 674
 675         /* Major version */
 676         proto_tree_add_item(tree, hf_major_version, tvb, offset, 1, TRUE);
 677         offset += 1;
 678
 679         /* Minor version */
 680         proto_tree_add_item(tree, hf_minor_version, tvb, offset, 1, TRUE);
 681         offset += 1;
 682
 683         /* OS version */
 684         proto_tree_add_item(tree, hf_os_version, tvb, offset, 1, TRUE);
 685         offset += 1;
 686
 687         /* NT version */
 688         proto_tree_add_item(tree, hf_nt_version, tvb, offset, 4, TRUE);
 689         offset += 4;
 690
 691         /* LMNT token */
 692         offset = display_LMNT_token(tvb, offset, tree);
 693
 694         /* XXX - no LM token?  Every other packet has one after the LMNT
 695            token. */
 696
 697         return offset;
 698 }
 699
 700
 701 static int
 702 dissect_smb_sam_logon_resp(tvbuff_t *tvb, packet_info *pinfo _U_,
 703         proto_tree *tree, int offset)
 704 {
 705         /* Netlogon command 0x13 - decode the SAM logon response from server */
 706
 707         /* server name */
 708         offset = display_unicode_string(tvb, tree, offset, hf_server_name, NULL);
 709
 710         /* user name */
 711         offset = display_unicode_string(tvb, tree, offset, hf_user_name, NULL);
 712
 713         /* domain name */
 714         offset = display_unicode_string(tvb, tree, offset, hf_domain_name, NULL);
 715
 716         /* NT version */
 717         proto_tree_add_item(tree, hf_nt_version, tvb, offset, 4, TRUE);
 718         offset += 4;
 719
 720         /* LMNT token */
 721         offset = display_LMNT_token(tvb, offset, tree);
 722
 723         /* LM token */
 724         offset = display_LM_token(tvb, offset, tree);
 725
 726         return offset;
 727 }
 728
 729
 730 #define LOGON_LM10_LOGON_REQUEST                0x00
 731 #define LOGON_LM10_LOGON_RESPONSE               0x01
 732 #define LOGON_LM10_QUERY_CI                     0x02
 733 #define LOGON_LM10_QUERY_DI                     0x03
 734 #define LOGON_LM10_RESPONSE_CI                  0x04
 735 #define LOGON_LM10_RESPONSE_DI                  0x05
 736 #define LOGON_LM20_LOGON_RESPONSE               0x06
 737 #define LOGON_PDC_QUERY                         0x07
 738 #define LOGON_PDC_STARTUP                       0x08
 739 #define LOGON_PDC_FAILED                        0x09
 740 #define LOGON_UAS_SAM                           0x0a
 741 #define LOGON_NO_USER                           0x0b
 742 #define LOGON_PDC_RESPONSE                      0x0c
 743 #define LOGON_RELOGON_RESPONSE                  0x0d
 744 #define LOGON_INTERROGATE_RESPONSE              0x0e
 745 #define LOGON_LM20_RESPONSE_DURING_LOGON        0x0f
 746 #define LOGON_LM20_USER_UNKNOWN                 0x10
 747 #define LOGON_LM20_ACCOUNT_UPDATE               0x11
 748 #define LOGON_SAM_LOGON_REQUEST                 0x12
 749 #define LOGON_SAM_LOGON_RESPONSE                0x13
 750 #define LOGON_SAM_RESPONSE_DURING_LOGON         0x14
 751 #define LOGON_SAM_USER_UNKNOWN                  0x15
 752 #define LOGON_SAM_INTERROGATE_RESPONSE          0x16
 753 #define LOGON_SAM_AD_USER_UNKNOWN               0x17
 754 #define LOGON_SAM_UNKNOWN_18                    0x18
 755 #define LOGON_SAM_AD_LOGON_RESPONSE             0x19
 756 #define LOGON_LAST_CMD                          0x20
 757
 758 static const value_string commands[] = {
 759         {LOGON_LM10_LOGON_REQUEST,      "LM1.0/LM2.0 LOGON Request"},
 760         {LOGON_LM10_LOGON_RESPONSE,     "LM1.0 LOGON Response"},
 761         {LOGON_LM10_QUERY_CI,           "LM1.0 Query - Centralized Initialization"},
 762         {LOGON_LM10_QUERY_DI,           "LM1.0 Query - Distributed Initialization"},
 763         {LOGON_LM10_RESPONSE_CI,        "LM1.0 Response - Centralized Query"},
 764         {LOGON_LM10_RESPONSE_DI,        "LM1.0 Response - Distributed Initialization"},
 765         {LOGON_LM20_LOGON_RESPONSE,     "LM2.0 Response to LOGON Request"},
 766         {LOGON_PDC_QUERY,               "Query for PDC"},
 767         {LOGON_PDC_STARTUP,             "Announce Startup of PDC"},
 768         {LOGON_PDC_FAILED,              "Announce Failed PDC"},
 769         {LOGON_UAS_SAM,                 "Announce Change to UAS or SAM"},
 770         {LOGON_NO_USER,                 "Announce no user on machine"},
 771         {LOGON_PDC_RESPONSE,            "Response from PDC"},
 772         {LOGON_RELOGON_RESPONSE,        "LM1.0/LM2.0 Response to re-LOGON Request"},
 773         {LOGON_INTERROGATE_RESPONSE,    "LM1.0/LM2.0 Response to Interrogate Request"},
 774         {LOGON_LM20_RESPONSE_DURING_LOGON,"LM2.0 Response during LOGON pause"},
 775         {LOGON_LM20_USER_UNKNOWN,       "LM2.0 Response - user unknown"},
 776         {LOGON_LM20_ACCOUNT_UPDATE,     "LM2.0 Announce account updates"},
 777         {LOGON_SAM_LOGON_REQUEST,       "SAM LOGON request from client"},
 778         {LOGON_SAM_LOGON_RESPONSE,      "Response to SAM LOGON request"},
 779         {LOGON_SAM_RESPONSE_DURING_LOGON,"SAM Response during LOGON pause"},
 780         {LOGON_SAM_USER_UNKNOWN,        "SAM Response - user unknown"},
 781         {LOGON_SAM_INTERROGATE_RESPONSE,"SAM Response to Interrogate Request"},
 782         {LOGON_SAM_AD_USER_UNKNOWN,     "SAM Active Directory Response - user unknown"},
 783         {LOGON_SAM_UNKNOWN_18,          "SAM unknown command 0x18"},
 784         {LOGON_SAM_AD_LOGON_RESPONSE,   "Active Directory Response to SAM LOGON request"},
 785         {0,     NULL}
 786 };
 787
 788
 789 static int (*dissect_smb_logon_cmds[])(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset) = {
 790         dissect_smb_logon_request,  /* 0x00 (LM1.0/LM2.0 LOGON Request) */
 791         dissect_smb_logon_LM10_resp,/* 0x01 (LM1.0 LOGON Response)      */
 792         dissect_smb_logon_2,        /* 0x02 (LM1.0 Query Centralized Init.)*/
 793         dissect_smb_logon_2,        /* 0x03 (LM1.0 Query Distributed Init.)*/
 794         dissect_smb_logon_2,        /* 0x04 (LM1.0 Centralized Query Resp.)*/
 795         dissect_smb_logon_2,        /* 0x05 (LM1.0 Distributed Query Resp.) */
 796         dissect_smb_logon_LM20_resp,/* 0x06 (LM2.0 LOGON Response)      */
 797         dissect_smb_pdc_query,      /* 0x07 (Query for PDC)             */
 798         dissect_smb_pdc_startup,    /* 0x08 (Announce PDC startup)      */
 799         dissect_smb_pdc_failure,    /* 0x09 (Announce Failed PDC)       */
 800         dissect_announce_change,    /* 0x0A (Announce Change to UAS or SAM)*/
 801         dissect_smb_no_user,        /* 0x0B (Announce no user on machine)*/
 802         dissect_smb_pdc_startup,    /* 0x0C (Response from PDC)         */
 803         dissect_smb_relogon_resp,   /* 0x0D (Relogon response)          */
 804         dissect_smb_inter_resp,     /* 0x0E (Interrogate response)      */
 805         dissect_smb_pdc_failure,    /* 0x0F (LM2.0 Resp. during LOGON pause*/
 806         dissect_smb_pdc_failure,    /* 0x10 (LM 2.0 Unknown user response)*/
 807         dissect_smb_acc_update,     /* 0x11 (LM2.1 Announce Acc updates)*/
 808         dissect_smb_sam_logon_req,  /* 0x12 (SAM LOGON request )        */
 809         dissect_smb_sam_logon_resp, /* 0x13 (SAM LOGON response)        */
 810         dissect_smb_unknown,        /* 0x14 (SAM Response during LOGON Pause) */
 811         dissect_smb_unknown,        /* 0x15 (SAM Response User Unknown) */
 812         dissect_smb_unknown,        /* 0x16 (SAM Response to Interrogate)*/
 813         dissect_smb_unknown,        /* 0x17 (SAM AD response User Unknown*/
 814         dissect_smb_unknown,        /* 0x18 (Unknown command)           */
 815         dissect_smb_unknown         /* 0x19 (SAM LOGON AD response)     */
 816 };
 817
 818
 819 gboolean
 820 dissect_smb_logon(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
 821 {
 822         int        offset = 0;
 823         guint8     cmd;
 824         proto_tree *smb_logon_tree = NULL;
 825         proto_item *item = NULL;
 826
 827         if (!proto_is_protocol_enabled(proto_smb_logon))
 828                 return FALSE;
 829
 830         pinfo->current_proto = "NETLOGON";
 831
 832         if (check_col(pinfo->cinfo, COL_PROTOCOL))
 833                 col_set_str(pinfo->cinfo, COL_PROTOCOL, "NETLOGON");
 834         if (check_col(pinfo->cinfo, COL_INFO))
 835                 col_clear(pinfo->cinfo, COL_INFO);
 836
 837         /* get the Command field */
 838         cmd = tvb_get_guint8(tvb, offset);
 839
 840         if (check_col(pinfo->cinfo, COL_INFO))
 841                 col_add_str(pinfo->cinfo, COL_INFO, val_to_str(cmd, commands, "Unknown Command:%02x") );
 842
 843         if (tree) {
 844                 item = proto_tree_add_item(tree, proto_smb_logon, tvb,
 845                         offset, -1, FALSE);
 846
 847                 smb_logon_tree = proto_item_add_subtree(item, ett_smb_logon);
 848         }
 849
 850         /* command */
 851         proto_tree_add_uint(smb_logon_tree, hf_command, tvb, offset, 1, cmd);
 852         offset += 1;
 853
 854         /* skip next byte */
 855         offset += 1;
 856
 857         if (cmd<LOGON_LAST_CMD) {
 858                 offset = (dissect_smb_logon_cmds[cmd])(tvb, pinfo,
 859                     smb_logon_tree, offset);
 860         } else {
 861                 /* unknown command */
 862                 offset = dissect_smb_unknown(tvb, pinfo, smb_logon_tree,
 863                     offset);
 864         }
 865
 866         return TRUE;
 867 }
 868
 869 void
 870 proto_register_smb_logon( void)
 871 {
 872         static hf_register_info hf[] = {
 873                 { &hf_command,
 874                         { "Command", "netlogon.command", FT_UINT8, BASE_HEX,
 875                           VALS(commands), 0, "NETLOGON Command", HFILL }},
 876
 877                 { &hf_computer_name,
 878                         { "Computer Name", "netlogon.computer_name", FT_STRING, BASE_NONE,
 879                           NULL, 0, "NETLOGON Computer Name", HFILL }},
 880
 881                 { &hf_unicode_computer_name,
 882                         { "Unicode Computer Name", "netlogon.unicode_computer_name", FT_STRING, BASE_NONE,
 883                           NULL, 0, "NETLOGON Unicode Computer Name", HFILL }},
 884
 885                 { &hf_server_name,
 886                         { "Server Name", "netlogon.server_name", FT_STRING, BASE_NONE,
 887                           NULL, 0, "NETLOGON Server Name", HFILL }},
 888
 889                 { &hf_user_name,
 890                         { "User Name", "netlogon.user_name", FT_STRING, BASE_NONE,
 891                           NULL, 0, "NETLOGON User Name", HFILL }},
 892
 893                 { &hf_domain_name,
 894                         { "Domain Name", "netlogon.domain_name", FT_STRING, BASE_NONE,
 895                           NULL, 0, "NETLOGON Domain Name", HFILL }},
 896
 897                 { &hf_mailslot_name,
 898                         { "Mailslot Name", "netlogon.mailslot_name", FT_STRING, BASE_NONE,
 899                           NULL, 0, "NETLOGON Mailslot Name", HFILL }},
 900
 901                 { &hf_pdc_name,
 902                         { "PDC Name", "netlogon.pdc_name", FT_STRING, BASE_NONE,
 903                           NULL, 0, "NETLOGON PDC Name", HFILL }},
 904
 905                 { &hf_unicode_pdc_name,
 906                         { "Unicode PDC Name", "netlogon.unicode_pdc_name", FT_STRING, BASE_NONE,
 907                           NULL, 0, "NETLOGON Unicode PDC Name", HFILL }},
 908
 909                 { &hf_script_name,
 910                         { "Script Name", "netlogon.script_name", FT_STRING, BASE_NONE,
 911                           NULL, 0, "NETLOGON Script Name", HFILL }},
 912
 913                 { &hf_nt_version,
 914                         { "NT Version", "netlogon.nt_version", FT_UINT32, BASE_DEC,
 915                           NULL, 0, "NETLOGON NT Version", HFILL }},
 916
 917                 /* An LMNT Token, if 0xffff, is "WindowsNT Networking";
 918                    what is it otherwise? */
 919                 { &hf_lmnt_token,
 920                         { "LMNT Token", "netlogon.lmnt_token", FT_UINT16, BASE_HEX,
 921                           NULL, 0, "NETLOGON LMNT Token", HFILL }},
 922
 923                 { &hf_lm_token,
 924                         { "LM Token", "netlogon.lm_token", FT_UINT16, BASE_HEX,
 925                           NULL, 0, "NETLOGON LM Token", HFILL }},
 926
 927                 { &hf_major_version,
 928                         { "Workstation Major Version", "netlogon.major_version", FT_UINT8, BASE_DEC,
 929                           NULL, 0, "NETLOGON Workstation Major Version", HFILL }},
 930
 931                 { &hf_minor_version,
 932                         { "Workstation Minor Version", "netlogon.minor_version", FT_UINT8, BASE_DEC,
 933                           NULL, 0, "NETLOGON Workstation Minor Version", HFILL }},
 934
 935                 { &hf_os_version,
 936                         { "Workstation OS Version", "netlogon.os_version", FT_UINT8, BASE_DEC,
 937                           NULL, 0, "NETLOGON Workstation OS Version", HFILL }},
 938
 939                 { &hf_date_time,
 940                         { "Date/Time", "netlogon.date_time", FT_UINT32, BASE_DEC,
 941                           NULL, 0, "NETLOGON Date/Time", HFILL }},
 942
 943                 { &hf_update_type,
 944                         { "Update Type", "netlogon.update", FT_UINT16, BASE_DEC,
 945                           NULL, 0, "NETLOGON Update Type", HFILL }},
 946
 947                 { &hf_request_count,
 948                         { "Request Count", "netlogon.request_count", FT_UINT16, BASE_DEC,
 949                           NULL, 0, "NETLOGON Request Count", HFILL }},
 950
 951                 { &hf_flags_autolock,
 952                         { "Autolock", "netlogon.flags.autolock", FT_BOOLEAN, 32,
 953                         TFS(&tfs_flags_autolock), ACC_FLAG_AUTO_LOCKED, "NETLOGON Account Autolock", HFILL}},
 954
 955                 { &hf_flags_expire,
 956                         { "Expire", "netlogon.flags.expire", FT_BOOLEAN, 32,
 957                         TFS(&tfs_flags_expire), ACC_FLAG_EXPIRE, "NETLOGON Will Account Expire", HFILL}},
 958
 959                 { &hf_flags_server_trust,
 960                         { "Server Trust", "netlogon.flags.server", FT_BOOLEAN, 32,
 961                         TFS(&tfs_flags_server_trust), ACC_FLAG_SERVER_TRUST, "NETLOGON Server Trust Account", HFILL}},
 962
 963                 { &hf_flags_workstation_trust,
 964                         { "Workstation Trust", "netlogon.flags.workstation", FT_BOOLEAN, 32,
 965                         TFS(&tfs_flags_workstation_trust), ACC_FLAG_WORKSTATION_TRUST, "NETLOGON Workstation Trust Account", HFILL}},
 966
 967                 { &hf_flags_interdomain_trust,
 968                         { "Interdomain Trust", "netlogon.flags.interdomain", FT_BOOLEAN, 32,
 969                         TFS(&tfs_flags_interdomain_trust), ACC_FLAG_INTERDOMAIN_TRUST, "NETLOGON Inter-domain Trust Account", HFILL}},
 970
 971                 { &hf_flags_mns_user,
 972                         { "MNS User", "netlogon.flags.mns", FT_BOOLEAN, 32,
 973                         TFS(&tfs_flags_mns_user), ACC_FLAG_MNS_USER, "NETLOGON MNS User Account", HFILL}},
 974
 975                 { &hf_flags_normal_user,
 976                         { "Normal User", "netlogon.flags.normal", FT_BOOLEAN, 32,
 977                         TFS(&tfs_flags_normal_user), ACC_FLAG_NORMAL_USER, "NETLOGON Normal User Account", HFILL}},
 978
 979                 { &hf_flags_temp_dup_user,
 980                         { "Temp Duplicate User", "netlogon.flags.temp_dup", FT_BOOLEAN, 32,
 981                         TFS(&tfs_flags_temp_dup_user), ACC_FLAG_TEMP_DUP_USER, "NETLOGON Temp Duplicate User Account", HFILL}},
 982
 983                 { &hf_flags_password_required,
 984                         { "Password", "netlogon.flags.password", FT_BOOLEAN, 32,
 985                         TFS(&tfs_flags_password_required), ACC_FLAG_PASSWORD_REQUIRED, "NETLOGON Password Required", HFILL}},
 986
 987                 { &hf_flags_homedir_required,
 988                         { "Homedir", "netlogon.flags.homedir", FT_BOOLEAN, 32,
 989                         TFS(&tfs_flags_homedir_required), ACC_FLAG_HOMEDIR_REQUIRED, "NETLOGON Homedir Required", HFILL}},
 990
 991                 { &hf_flags_enabled,
 992                         { "Enabled", "netlogon.flags.enabled", FT_BOOLEAN, 32,
 993                         TFS(&tfs_flags_enabled), ACC_FLAG_ENABLED, "NETLOGON Is This Account Enabled", HFILL}},
 994
 995                 { &hf_domain_sid_size,
 996                         { "Domain SID Size", "netlogon.domain_sid_size", FT_UINT32, BASE_DEC,
 997                           NULL, 0, "NETLOGON Domain SID Size", HFILL }},
 998
 999                 { &hf_low_serial,
1000                         { "Low Serial Number", "netlogon.low_serial", FT_UINT32, BASE_DEC,
1001                           NULL, 0, "NETLOGON Low Serial Number", HFILL }},
1002
1003                 { &hf_pulse,
1004                         { "Pulse", "netlogon.pulse", FT_UINT32, BASE_DEC,
1005                           NULL, 0, "NETLOGON Pulse", HFILL }},
1006
1007                 { &hf_random,
1008                         { "Random", "netlogon.random", FT_UINT32, BASE_DEC,
1009                           NULL, 0, "NETLOGON Random", HFILL }},
1010
1011                 { &hf_db_count,
1012                         { "DB Count", "netlogon.db_count", FT_UINT32, BASE_DEC,
1013                           NULL, 0, "NETLOGON DB Count", HFILL }},
1014
1015                 { &hf_db_index,
1016                         { "Database Index", "netlogon.db_index", FT_UINT32, BASE_DEC,
1017                           NULL, 0, "NETLOGON Database Index", HFILL }},
1018
1019                 { &hf_large_serial,
1020                         { "Large Serial Number", "netlogon.large_serial", FT_UINT64, BASE_DEC,
1021                           NULL, 0, "NETLOGON Large Serial Number", HFILL }},
1022
1023                 { &hf_nt_date_time,
1024                         { "NT Date/Time", "netlogon.nt_date_time", FT_ABSOLUTE_TIME, BASE_NONE,
1025                           NULL, 0, "NETLOGON NT Date/Time", HFILL }},
1026         };
1027
1028         static gint *ett[] = {
1029                 &ett_smb_logon,
1030                 &ett_smb_account_flags,
1031                 &ett_smb_db_info
1032         };
1033
1034         proto_smb_logon = proto_register_protocol(
1035                 "Microsoft Windows Logon Protocol", "NETLOGON", "netlogon");
1036
1037         proto_register_field_array(proto_smb_logon, hf, array_length(hf));
1038         proto_register_subtree_array(ett, array_length(ett));
1039 }