source3/nmbd/nmbd_processlogon.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    NBT netbios routines and daemon - version 2
   4    Copyright (C) Andrew Tridgell 1994-1998
   5    Copyright (C) Luke Kenneth Casson Leighton 1994-1998
   6    Copyright (C) Jeremy Allison 1994-2003
   7    Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2002
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program; if not, write to the Free Software
  21    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  22
  23    Revision History:
  24
  25 */
  26
  27 #include "includes.h"
  28
  29 struct sam_database_info {
  30         uint32 index;
  31         uint32 serial_lo, serial_hi;
  32         uint32 date_lo, date_hi;
  33 };
  34
  35 /****************************************************************************
  36 Send a message to smbd to do a sam delta sync
  37 **************************************************************************/
  38
  39 static void send_repl_message(uint32 low_serial)
  40 {
  41         DEBUG(3, ("sending replication message, serial = 0x%04x\n",
  42                   low_serial));
  43         message_send_all(nmbd_messaging_context(), MSG_SMB_SAM_REPL,
  44                          &low_serial, sizeof(low_serial), NULL);
  45 }
  46
  47 /****************************************************************************
  48 Process a domain logon packet
  49 **************************************************************************/
  50
  51 void process_logon_packet(struct packet_struct *p, char *buf,int len,
  52                           const char *mailslot)
  53 {
  54         struct dgram_packet *dgram = &p->packet.dgram;
  55         pstring my_name;
  56         fstring reply_name;
  57         pstring outbuf;
  58         int code;
  59         uint16 token = 0;
  60         uint32 ntversion = 0;
  61         uint16 lmnttoken = 0;
  62         uint16 lm20token = 0;
  63         uint32 domainsidsize;
  64         BOOL short_request = False;
  65         char *getdc;
  66         char *uniuser; /* Unicode user name. */
  67         pstring ascuser;
  68         char *unicomp; /* Unicode computer name. */
  69
  70         memset(outbuf, 0, sizeof(outbuf));
  71
  72         if (!lp_domain_logons()) {
  73                 DEBUG(5,("process_logon_packet: Logon packet received from IP %s and domain \
  74 logons are not enabled.\n", inet_ntoa(p->ip) ));
  75                 return;
  76         }
  77
  78         pstrcpy(my_name, global_myname());
  79
  80         code = get_safe_SVAL(buf,len,buf,0,-1);
  81         DEBUG(4,("process_logon_packet: Logon from %s: code = 0x%x\n", inet_ntoa(p->ip), code));
  82
  83         switch (code) {
  84                 case 0:
  85                         {
  86                                 fstring mach_str, user_str, getdc_str;
  87                                 char *q = buf + 2;
  88                                 char *machine = q;
  89                                 char *user = skip_string(buf,len,machine);
  90
  91                                 if (!user || PTR_DIFF(user, buf) >= len) {
  92                                         DEBUG(0,("process_logon_packet: bad packet\n"));
  93                                         return;
  94                                 }
  95                                 getdc = skip_string(buf,len,user);
  96
  97                                 if (!getdc || PTR_DIFF(getdc, buf) >= len) {
  98                                         DEBUG(0,("process_logon_packet: bad packet\n"));
  99                                         return;
 100                                 }
 101                                 q = skip_string(buf,len,getdc);
 102
 103                                 if (!q || PTR_DIFF(q + 5, buf) > len) {
 104                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 105                                         return;
 106                                 }
 107                                 token = SVAL(q,3);
 108
 109                                 fstrcpy(reply_name,my_name);
 110
 111                                 pull_ascii_fstring(mach_str, machine);
 112                                 pull_ascii_fstring(user_str, user);
 113                                 pull_ascii_fstring(getdc_str, getdc);
 114
 115                                 DEBUG(5,("process_logon_packet: Domain login request from %s at IP %s user=%s token=%x\n",
 116                                         mach_str,inet_ntoa(p->ip),user_str,token));
 117
 118                                 q = outbuf;
 119                                 SSVAL(q, 0, 6);
 120                                 q += 2;
 121
 122                                 fstrcpy(reply_name, "\\\\");
 123                                 fstrcat(reply_name, my_name);
 124                                 push_ascii_fstring(q, reply_name);
 125                                 q = skip_string(outbuf,sizeof(outbuf),q); /* PDC name */
 126
 127                                 SSVAL(q, 0, token);
 128                                 q += 2;
 129
 130                                 dump_data(4, (uint8 *)outbuf, PTR_DIFF(q, outbuf));
 131
 132                                 send_mailslot(True, getdc_str,
 133                                                 outbuf,PTR_DIFF(q,outbuf),
 134                                                 global_myname(), 0x0,
 135                                                 mach_str,
 136                                                 dgram->source_name.name_type,
 137                                                 p->ip, *iface_ip(p->ip), p->port);
 138                                 break;
 139                         }
 140
 141                 case QUERYFORPDC:
 142                         {
 143                                 fstring mach_str, getdc_str;
 144                                 fstring source_name;
 145                                 char *q = buf + 2;
 146                                 char *machine = q;
 147
 148                                 if (!lp_domain_master()) {
 149                                         /* We're not Primary Domain Controller -- ignore this */
 150                                         return;
 151                                 }
 152
 153                                 getdc = skip_string(buf,len,machine);
 154
 155                                 if (!getdc || PTR_DIFF(getdc, buf) >= len) {
 156                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 157                                         return;
 158                                 }
 159                                 q = skip_string(buf,len,getdc);
 160
 161                                 if (!q || PTR_DIFF(q, buf) >= len) {
 162                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 163                                         return;
 164                                 }
 165                                 q = ALIGN2(q, buf);
 166
 167                                 /* At this point we can work out if this is a W9X or NT style
 168                                    request. Experiments show that the difference is wether the
 169                                    packet ends here. For a W9X request we now end with a pair of
 170                                    bytes (usually 0xFE 0xFF) whereas with NT we have two further
 171                                    strings - the following is a simple way of detecting this */
 172
 173                                 if (len - PTR_DIFF(q, buf) <= 3) {
 174                                         short_request = True;
 175                                 } else {
 176                                         unicomp = q;
 177
 178                                         if (PTR_DIFF(q, buf) >= len) {
 179                                                 DEBUG(0,("process_logon_packet: bad packet\n"));
 180                                                 return;
 181                                         }
 182
 183                                         /* A full length (NT style) request */
 184                                         q = skip_unibuf(unicomp, PTR_DIFF(buf + len, unicomp));
 185
 186                                         if (PTR_DIFF(q, buf) >= len) {
 187                                                 DEBUG(0,("process_logon_packet: bad packet\n"));
 188                                                 return;
 189                                         }
 190
 191                                         if (len - PTR_DIFF(q, buf) > 8) {
 192                                                 /* with NT5 clients we can sometimes
 193                                                         get additional data - a length specificed string
 194                                                         containing the domain name, then 16 bytes of
 195                                                         data (no idea what it is) */
 196                                                 int dom_len = CVAL(q, 0);
 197                                                 q++;
 198                                                 if (dom_len != 0) {
 199                                                         q += dom_len + 1;
 200                                                 }
 201                                                 q += 16;
 202                                         }
 203
 204                                         if (PTR_DIFF(q + 8, buf) > len) {
 205                                                 DEBUG(0,("process_logon_packet: bad packet\n"));
 206                                                 return;
 207                                         }
 208
 209                                         ntversion = IVAL(q, 0);
 210                                         lmnttoken = SVAL(q, 4);
 211                                         lm20token = SVAL(q, 6);
 212                                 }
 213
 214                                 /* Construct reply. */
 215                                 q = outbuf;
 216                                 SSVAL(q, 0, QUERYFORPDC_R);
 217                                 q += 2;
 218
 219                                 fstrcpy(reply_name,my_name);
 220                                 push_ascii_fstring(q, reply_name);
 221                                 q = skip_string(outbuf,sizeof(outbuf),q); /* PDC name */
 222
 223                                 /* PDC and domain name */
 224                                 if (!short_request) {
 225                                         /* Make a full reply */
 226                                         q = ALIGN2(q, outbuf);
 227
 228                                         q += dos_PutUniCode(q, my_name, sizeof(pstring), True); /* PDC name */
 229                                         q += dos_PutUniCode(q, lp_workgroup(),sizeof(pstring), True); /* Domain name*/
 230                                         SIVAL(q, 0, 1); /* our nt version */
 231                                         SSVAL(q, 4, 0xffff); /* our lmnttoken */
 232                                         SSVAL(q, 6, 0xffff); /* our lm20token */
 233                                         q += 8;
 234                                 }
 235
 236                                 /* RJS, 21-Feb-2000, we send a short reply if the request was short */
 237
 238                                 pull_ascii_fstring(mach_str, machine);
 239
 240                                 DEBUG(5,("process_logon_packet: GETDC request from %s at IP %s, \
 241 reporting %s domain %s 0x%x ntversion=%x lm_nt token=%x lm_20 token=%x\n",
 242                                         mach_str,inet_ntoa(p->ip), reply_name, lp_workgroup(),
 243                                         QUERYFORPDC_R, (uint32)ntversion, (uint32)lmnttoken,
 244                                         (uint32)lm20token ));
 245
 246                                 dump_data(4, (uint8 *)outbuf, PTR_DIFF(q, outbuf));
 247
 248                                 pull_ascii_fstring(getdc_str, getdc);
 249                                 pull_ascii_nstring(source_name, sizeof(source_name), dgram->source_name.name);
 250
 251                                 send_mailslot(True, getdc_str,
 252                                         outbuf,PTR_DIFF(q,outbuf),
 253                                         global_myname(), 0x0,
 254                                         source_name,
 255                                         dgram->source_name.name_type,
 256                                         p->ip, *iface_ip(p->ip), p->port);
 257                                 return;
 258                         }
 259
 260                 case SAMLOGON:
 261
 262                         {
 263                                 fstring getdc_str;
 264                                 fstring source_name;
 265                                 char *q = buf + 2;
 266                                 fstring asccomp;
 267
 268                                 q += 2;
 269
 270                                 if (PTR_DIFF(q, buf) >= len) {
 271                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 272                                         return;
 273                                 }
 274
 275                                 unicomp = q;
 276                                 uniuser = skip_unibuf(unicomp, PTR_DIFF(buf+len, unicomp));
 277
 278                                 if (PTR_DIFF(uniuser, buf) >= len) {
 279                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 280                                         return;
 281                                 }
 282
 283                                 getdc = skip_unibuf(uniuser,PTR_DIFF(buf+len, uniuser));
 284
 285                                 if (PTR_DIFF(getdc, buf) >= len) {
 286                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 287                                         return;
 288                                 }
 289
 290                                 q = skip_string(buf,len,getdc);
 291
 292                                 if (!q || PTR_DIFF(q + 8, buf) >= len) {
 293                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 294                                         return;
 295                                 }
 296
 297                                 q += 4; /* Account Control Bits - indicating username type */
 298                                 domainsidsize = IVAL(q, 0);
 299                                 q += 4;
 300
 301                                 DEBUG(5,("process_logon_packet: SAMLOGON sidsize %d, len = %d\n", domainsidsize, len));
 302
 303                                 if (domainsidsize < (len - PTR_DIFF(q, buf)) && (domainsidsize != 0)) {
 304                                         q += domainsidsize;
 305                                         q = ALIGN4(q, buf);
 306                                 }
 307
 308                                 DEBUG(5,("process_logon_packet: len = %d PTR_DIFF(q, buf) = %ld\n", len, (unsigned long)PTR_DIFF(q, buf) ));
 309
 310                                 if (len - PTR_DIFF(q, buf) > 8) {
 311                                         /* with NT5 clients we can sometimes
 312                                                 get additional data - a length specificed string
 313                                                 containing the domain name, then 16 bytes of
 314                                                 data (no idea what it is) */
 315                                         int dom_len = CVAL(q, 0);
 316                                         q++;
 317                                         if (dom_len < (len - PTR_DIFF(q, buf)) && (dom_len != 0)) {
 318                                                 q += dom_len + 1;
 319                                         }
 320                                         q += 16;
 321                                 }
 322
 323                                 if (PTR_DIFF(q + 8, buf) > len) {
 324                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 325                                         return;
 326                                 }
 327
 328                                 ntversion = IVAL(q, 0);
 329                                 lmnttoken = SVAL(q, 4);
 330                                 lm20token = SVAL(q, 6);
 331                                 q += 8;
 332
 333                                 DEBUG(3,("process_logon_packet: SAMLOGON sidsize %d ntv %d\n", domainsidsize, ntversion));
 334
 335                                 /*
 336                                  * we respond regadless of whether the machine is in our password
 337                                  * database. If it isn't then we let smbd send an appropriate error.
 338                                  * Let's ignore the SID.
 339                                  */
 340                                 pull_ucs2_pstring(ascuser, uniuser);
 341                                 pull_ucs2_fstring(asccomp, unicomp);
 342                                 DEBUG(5,("process_logon_packet: SAMLOGON user %s\n", ascuser));
 343
 344                                 fstrcpy(reply_name, "\\\\"); /* Here it wants \\LOGONSERVER. */
 345                                 fstrcat(reply_name, my_name);
 346
 347                                 DEBUG(5,("process_logon_packet: SAMLOGON request from %s(%s) for %s, returning logon svr %s domain %s code %x token=%x\n",
 348                                         asccomp,inet_ntoa(p->ip), ascuser, reply_name, lp_workgroup(),
 349                                 SAMLOGON_R ,lmnttoken));
 350
 351                                 /* Construct reply. */
 352
 353                                 q = outbuf;
 354                                 /* we want the simple version unless we are an ADS PDC..which means  */
 355                                 /* never, at least for now */
 356                                 if ((ntversion < 11) || (SEC_ADS != lp_security()) || (ROLE_DOMAIN_PDC != lp_server_role())) {
 357                                         if (SVAL(uniuser, 0) == 0) {
 358                                                 SSVAL(q, 0, SAMLOGON_UNK_R);    /* user unknown */
 359                                         } else {
 360                                                 SSVAL(q, 0, SAMLOGON_R);
 361                                         }
 362
 363                                         q += 2;
 364
 365                                         q += dos_PutUniCode(q, reply_name,sizeof(pstring), True);
 366                                         q += dos_PutUniCode(q, ascuser, sizeof(pstring), True);
 367                                         q += dos_PutUniCode(q, lp_workgroup(),sizeof(pstring), True);
 368                                 }
 369 #ifdef HAVE_ADS
 370                                 else {
 371                                         struct GUID domain_guid;
 372                                         UUID_FLAT flat_guid;
 373                                         pstring domain;
 374                                         pstring hostname;
 375                                         char *component, *dc, *q1;
 376                                         uint8 size;
 377                                         char *q_orig = q;
 378                                         int str_offset;
 379
 380                                         get_mydnsdomname(domain);
 381                                         get_myname(hostname);
 382
 383                                         if (SVAL(uniuser, 0) == 0) {
 384                                                 SIVAL(q, 0, SAMLOGON_AD_UNK_R); /* user unknown */
 385                                         } else {
 386                                                 SIVAL(q, 0, SAMLOGON_AD_R);
 387                                         }
 388                                         q += 4;
 389
 390                                         SIVAL(q, 0, ADS_PDC|ADS_GC|ADS_LDAP|ADS_DS|
 391                                                 ADS_KDC|ADS_TIMESERV|ADS_CLOSEST|ADS_WRITABLE);
 392                                         q += 4;
 393
 394                                         /* Push Domain GUID */
 395                                         if (False == secrets_fetch_domain_guid(domain, &domain_guid)) {
 396                                                 DEBUG(2, ("Could not fetch DomainGUID for %s\n", domain));
 397                                                 return;
 398                                         }
 399
 400                                         smb_uuid_pack(domain_guid, &flat_guid);
 401                                         memcpy(q, &flat_guid.info, UUID_FLAT_SIZE);
 402                                         q += UUID_FLAT_SIZE;
 403
 404                                         /* Forest */
 405                                         str_offset = q - q_orig;
 406                                         dc = domain;
 407                                         q1 = q;
 408                                         while ((component = strtok(dc, "."))) {
 409                                                 dc = NULL;
 410                                                 size = push_ascii(&q[1], component, -1, 0);
 411                                                 SCVAL(q, 0, size);
 412                                                 q += (size + 1);
 413                                         }
 414
 415                                         /* Unk0 */
 416                                         SCVAL(q, 0, 0);
 417                                         q++;
 418
 419                                         /* Domain */
 420                                         SCVAL(q, 0, 0xc0 | ((str_offset >> 8) & 0x3F));
 421                                         SCVAL(q, 1, str_offset & 0xFF);
 422                                         q += 2;
 423
 424                                         /* Hostname */
 425                                         size = push_ascii(&q[1], hostname, -1, 0);
 426                                         SCVAL(q, 0, size);
 427                                         q += (size + 1);
 428                                         SCVAL(q, 0, 0xc0 | ((str_offset >> 8) & 0x3F));
 429                                         SCVAL(q, 1, str_offset & 0xFF);
 430                                         q += 2;
 431
 432                                         /* NETBIOS of domain */
 433                                         size = push_ascii(&q[1], lp_workgroup(), -1, STR_UPPER);
 434                                         SCVAL(q, 0, size);
 435                                         q += (size + 1);
 436
 437                                         /* Unk1 */
 438                                         SCVAL(q, 0, 0);
 439                                         q++;
 440
 441                                         /* NETBIOS of hostname */
 442                                         size = push_ascii(&q[1], my_name, -1, 0);
 443                                         SCVAL(q, 0, size);
 444                                         q += (size + 1);
 445
 446                                         /* Unk2 */
 447                                         SCVAL(q, 0, 0);
 448                                         q++;
 449
 450                                         /* User name */
 451                                         if (SVAL(uniuser, 0) != 0) {
 452                                                 size = push_ascii(&q[1], ascuser, -1, 0);
 453                                                 SCVAL(q, 0, size);
 454                                                 q += (size + 1);
 455                                         }
 456
 457                                         q_orig = q;
 458                                         /* Site name */
 459                                         size = push_ascii(&q[1], "Default-First-Site-Name", -1, 0);
 460                                         SCVAL(q, 0, size);
 461                                         q += (size + 1);
 462
 463                                         /* Site name (2) */
 464                                         str_offset = q - q_orig;
 465                                         SCVAL(q, 0, 0xc0 | ((str_offset >> 8) & 0x3F));
 466                                         SCVAL(q, 1, str_offset & 0xFF);
 467                                         q += 2;
 468
 469                                         SCVAL(q, 0, PTR_DIFF(q,q1));
 470                                         SCVAL(q, 1, 0x10); /* unknown */
 471
 472                                         SIVAL(q, 0, 0x00000002);
 473                                         q += 4; /* unknown */
 474                                         SIVAL(q, 0, (iface_ip(p->ip))->s_addr);
 475                                         q += 4;
 476                                         SIVAL(q, 0, 0x00000000);
 477                                         q += 4; /* unknown */
 478                                         SIVAL(q, 0, 0x00000000);
 479                                         q += 4; /* unknown */
 480                                 }
 481 #endif
 482
 483                                 /* tell the client what version we are */
 484                                 SIVAL(q, 0, ((ntversion < 11) || (SEC_ADS != lp_security())) ? 1 : 13);
 485                                 /* our ntversion */
 486                                 SSVAL(q, 4, 0xffff); /* our lmnttoken */
 487                                 SSVAL(q, 6, 0xffff); /* our lm20token */
 488                                 q += 8;
 489
 490                                 dump_data(4, (uint8 *)outbuf, PTR_DIFF(q, outbuf));
 491
 492                                 pull_ascii_fstring(getdc_str, getdc);
 493                                 pull_ascii_nstring(source_name, sizeof(source_name), dgram->source_name.name);
 494
 495                                 send_mailslot(True, getdc,
 496                                         outbuf,PTR_DIFF(q,outbuf),
 497                                         global_myname(), 0x0,
 498                                         source_name,
 499                                         dgram->source_name.name_type,
 500                                         p->ip, *iface_ip(p->ip), p->port);
 501                                 break;
 502                         }
 503
 504                 /* Announce change to UAS or SAM.  Send by the domain controller when a
 505                 replication event is required. */
 506
 507                 case SAM_UAS_CHANGE:
 508                         {
 509                                 struct sam_database_info *db_info;
 510                                 char *q = buf + 2;
 511                                 int i, db_count;
 512                                 uint32 low_serial;
 513
 514                                 /* Header */
 515
 516                                 if (PTR_DIFF(q + 16, buf) >= len) {
 517                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 518                                         return;
 519                                 }
 520
 521                                 low_serial = IVAL(q, 0); q += 4;     /* Low serial number */
 522
 523                                 q += 4;                   /* Date/time */
 524                                 q += 4;                   /* Pulse */
 525                                 q += 4;                   /* Random */
 526
 527                                 /* Domain info */
 528
 529                                 q = skip_string(buf,len,q);    /* PDC name */
 530
 531                                 if (!q || PTR_DIFF(q, buf) >= len) {
 532                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 533                                         return;
 534                                 }
 535
 536                                 q = skip_string(buf,len,q);    /* Domain name */
 537
 538                                 if (!q || PTR_DIFF(q, buf) >= len) {
 539                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 540                                         return;
 541                                 }
 542
 543                                 q = skip_unibuf(q, PTR_DIFF(buf + len, q)); /* Unicode PDC name */
 544
 545                                 if (PTR_DIFF(q, buf) >= len) {
 546                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 547                                         return;
 548                                 }
 549
 550                                 q = skip_unibuf(q, PTR_DIFF(buf + len, q)); /* Unicode domain name */
 551
 552                                 /* Database info */
 553
 554                                 if (PTR_DIFF(q + 2, buf) >= len) {
 555                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 556                                         return;
 557                                 }
 558
 559                                 db_count = SVAL(q, 0); q += 2;
 560
 561                                 if (PTR_DIFF(q + (db_count*20), buf) >= len) {
 562                                         DEBUG(0,("process_logon_packet: bad packet\n"));
 563                                         return;
 564                                 }
 565
 566                                 db_info = SMB_MALLOC_ARRAY(struct sam_database_info, db_count);
 567
 568                                 if (db_info == NULL) {
 569                                         DEBUG(3, ("out of memory allocating info for %d databases\n", db_count));
 570                                         return;
 571                                 }
 572
 573                                 for (i = 0; i < db_count; i++) {
 574                                         db_info[i].index = IVAL(q, 0);
 575                                         db_info[i].serial_lo = IVAL(q, 4);
 576                                         db_info[i].serial_hi = IVAL(q, 8);
 577                                         db_info[i].date_lo = IVAL(q, 12);
 578                                         db_info[i].date_hi = IVAL(q, 16);
 579                                         q += 20;
 580                                 }
 581
 582                                 /* Domain SID */
 583
 584 #if 0
 585                                 /* We must range check this. */
 586                                 q += IVAL(q, 0) + 4;  /* 4 byte length plus data */
 587
 588                                 q += 2;               /* Alignment? */
 589
 590                                 /* Misc other info */
 591
 592                                 q += 4;               /* NT version (0x1) */
 593                                 q += 2;               /* LMNT token (0xff) */
 594                                 q += 2;               /* LM20 token (0xff) */
 595 #endif
 596
 597                                 SAFE_FREE(db_info);        /* Not sure whether we need to do anything useful with these */
 598
 599                                 /* Send message to smbd */
 600
 601                                 send_repl_message(low_serial);
 602                                 break;
 603                         }
 604
 605                 default:
 606                         DEBUG(3,("process_logon_packet: Unknown domain request %d\n",code));
 607                         return;
 608         }
 609 }