docs-xml/Samba3-Developers-Guide/cifsntdomain.xml

   1 <?xml version="1.0" encoding="iso-8859-1"?>
   2 <!DOCTYPE chapter PUBLIC "-//Samba-Team//DTD DocBook V4.2-Based Variant V1.0//EN" "http://www.samba.org/samba/DTD/samba-doc">
   3 <chapter id="ntdomain">
   4 <chapterinfo>
   5         <author>
   6                 <firstname>Luke</firstname><surname>Leighton</surname>
   7                 <affiliation><address><email>lkcl@switchboard.net</email></address></affiliation>
   8         </author>
   9         <author>
  10                 <firstname>Paul</firstname><surname>Ashton</surname>
  11                 <affiliation><address><email>paul@argo.demon.co.uk</email></address></affiliation>
  12         </author>
  13         <author>
  14                 <firstname>Duncan</firstname><surname>Stansfield</surname>
  15                 <affiliation><address><email>duncans@sco.com</email></address></affiliation>
  16         </author>
  17
  18         <pubdate>01 November 97(version 0.0.24)</pubdate>
  19 </chapterinfo>
  20
  21 <title>NT Domain RPC's</title>
  22
  23 <sect1>
  24 <title>Introduction</title>
  25
  26
  27 <para>
  28 This document contains information to provide an NT workstation with login
  29 services, without the need for an NT server. It is the sgml version of <ulink url="http://mailhost.cb1.com/~lkcl/cifsntdomain.txt">http://mailhost.cb1.com/~lkcl/cifsntdomain.txt</ulink>, controlled by Luke.
  30 </para>
  31
  32 <para>
  33 It should be possible to select a domain instead of a workgroup (in the NT
  34 workstation's TCP/IP settings) and after the obligatory reboot, type in a
  35 username, password, select a domain and successfully log in.  I would
  36 appreciate any feedback on your experiences with this process, and any
  37 comments, corrections and additions to this document.
  38 </para>
  39
  40 <para>
  41 The packets described here can be easily derived from (and are probably
  42 better understood using) Netmon.exe.  You will need to use the version
  43 of Netmon that matches your system, in order to correctly decode the
  44 NETLOGON, lsarpc and srvsvc Transact pipes.  This document is derived from
  45 NT Service Pack 1 and its corresponding version of Netmon.  It is intended
  46 that an annotated packet trace be produced, which will likely be more
  47 instructive than this document.
  48 </para>
  49
  50 <para>
  51 Also needed, to fully implement NT Domain Login Services, is the
  52 document describing the cryptographic part of the NT authentication.
  53 This document is available from comp.protocols.smb; from the ntsecurity.net
  54 digest and from the samba digest, amongst other sources.
  55 </para>
  56
  57 <para>
  58 A copy is available from:
  59 </para>
  60
  61 <para><ulink url="http://ntbugtraq.rc.on.ca/SCRIPTS/WA.EXE?A2=ind9708;L=ntbugtraq;O=A;P=2935">http://ntbugtraq.rc.on.ca/SCRIPTS/WA.EXE?A2=ind9708;L=ntbugtraq;O=A;P=2935</ulink></para>
  62
  63 <para><ulink url="http://mailhost.cb1.com/~lkcl/crypt.html">http://mailhost.cb1.com/~lkcl/crypt.html</ulink></para>
  64
  65 <para>
  66 A c-code implementation, provided by <ulink url="mailto:linus@incolumitas.se">Linus Nordberg</ulink>
  67 of this protocol is available from:
  68 </para>
  69
  70 <para><ulink url="https://www.samba.org/cgi-bin/mfs/01/digest/1997/97aug/0391.html">https://www.samba.org/cgi-bin/mfs/01/digest/1997/97aug/0391.html</ulink></para>
  71 <para><ulink url="http://mailhost.cb1.com/~lkcl/crypt.txt">http://mailhost.cb1.com/~lkcl/crypt.txt</ulink></para>
  72
  73 <para>
  74 Also used to provide debugging information is the Check Build version of
  75 NT workstation, and enabling full debugging in NETLOGON.  This is
  76 achieved by setting the following REG_SZ registry key to 0x1ffffff:
  77 </para>
  78
  79 <para><filename>HKLM\SYSTEM\CurrentControlSet\Services\Netlogon\Parameters</filename></para>
  80
  81 <para><emphasis>Incorrect direct editing of the registry can cause your
  82 machine to fail. Then again, so can incorrect implementation of this
  83 protocol. See "Liability:" above.</emphasis></para>
  84
  85 <para>
  86 Bear in mind that each packet over-the-wire will have its origin in an
  87 API call.  Therefore, there are likely to be structures, enumerations
  88 and defines that are usefully documented elsewhere.
  89 </para>
  90
  91 <para>
  92 This document is by no means complete or authoritative.  Missing sections
  93 include, but are not limited to:
  94 </para>
  95
  96
  97 <orderedlist>
  98
  99 <listitem><para>Mappings of RIDs to usernames (and vice-versa).</para></listitem>
 100
 101 <listitem><para>What a User ID is and what a Group ID is.</para></listitem>
 102
 103 <listitem><para>The exact meaning/definition of various magic constants or enumerations.</para></listitem>
 104
 105 <listitem><para>The reply error code and use of that error code when a
 106 workstation becomes a member of a domain (to be described later).
 107 Failure to return this error code will make the workstation report
 108 that it is already a member of the domain.</para></listitem>
 109
 110 <listitem><para>the cryptographic side of the NetrServerPasswordSet command,
 111 which would allow the workstation to change its password.  This password is
 112 used to generate the long-term session key.  [It is possible to reject this
 113 command, and keep the default workstation password].</para></listitem>
 114
 115 </orderedlist>
 116
 117 <sect2>
 118 <title>Sources</title>
 119
 120 <simplelist>
 121 <member>cket Traces from Netmonitor (Service Pack 1 and above)</member>
 122 <member>ul Ashton and Luke Leighton's other "NT Domain" doc.</member>
 123 <member>FS documentation - cifs6.txt</member>
 124 <member>FS documentation - cifsrap2.txt</member>
 125 </simplelist>
 126
 127 </sect2>
 128
 129 <sect2>
 130 <title>Credits</title>
 131
 132 <simplelist>
 133 <member>Paul Ashton: loads of work with Net Monitor; understanding the NT authentication system; reference implementation of the NT domain support on which this document is originally based.</member>
 134 <member>Duncan Stansfield: low-level analysis of MSRPC Pipes.</member>
 135 <member>Linus Nordberg: producing c-code from Paul's crypto spec.</member>
 136 <member>Windows Sourcer development team</member>
 137 </simplelist>
 138
 139 </sect2>
 140
 141 </sect1>
 142
 143 <sect1>
 144 <title>Notes and Structures</title>
 145
 146 <sect2>
 147 <title>Notes</title>
 148
 149 <orderedlist>
 150 <listitem><para>
 151 In the SMB Transact pipes, some "Structures", described here, appear to be
 152 4-byte aligned with the SMB header, at their start.  Exactly which
 153 "Structures" need aligning is not precisely known or documented.
 154 </para></listitem>
 155
 156 <listitem><para>
 157 In the UDP NTLOGON Mailslots, some "Structures", described here, appear to be
 158 2-byte aligned with the start of the mailslot, at their start.
 159 </para></listitem>
 160
 161 <listitem><para>
 162 Domain SID is of the format S-revision-version-auth1-auth2...authN.
 163 e.g S-1-5-123-456-789-123-456.  the 5 could be a sub-revision.
 164 </para></listitem>
 165
 166 <listitem><para>
 167 any undocumented buffer pointers must be non-zero if the string buffer it
 168 refers to contains characters.  exactly what value they should be is unknown.
 169 0x0000 0002 seems to do the trick to indicate that the buffer exists.  a
 170 NULL buffer pointer indicates that the string buffer is of zero length.
 171 If the buffer pointer is NULL, then it is suspected that the structure it
 172 refers to is NOT put into (or taken out of) the SMB data stream.  This is
 173 empirically derived from, for example, the LSA SAM Logon response packet,
 174 where if the buffer pointer is NULL, the user information is not inserted
 175 into the data stream.  Exactly what happens with an array of buffer pointers
 176 is not known, although an educated guess can be made.
 177 </para></listitem>
 178
 179 <listitem><para>
 180 an array of structures (a container) appears to have a count and a pointer.
 181 if the count is zero, the pointer is also zero.  no further data is put
 182 into or taken out of the SMB data stream.  if the count is non-zero, then
 183 the pointer is also non-zero.  immediately following the pointer is the
 184 count again, followed by an array of container sub-structures.  the count
 185 appears a third time after the last sub-structure.
 186 </para></listitem>
 187 </orderedlist>
 188
 189 </sect2>
 190
 191 <sect2>
 192 <title>Enumerations</title>
 193
 194 <sect3>
 195 <title>MSRPC Header type</title>
 196 <para>command number in the msrpc packet header</para>
 197
 198 <variablelist>
 199 <varlistentry>
 200         <term>MSRPC_Request:</term>
 201         <listitem><para>0x00</para></listitem>
 202 </varlistentry>
 203 <varlistentry>
 204         <term>MSRPC_Response:</term>
 205         <listitem><para>0x02</para></listitem>
 206 </varlistentry>
 207 <varlistentry>
 208         <term>MSRPC_Bind:</term>
 209         <listitem><para>0x0B</para></listitem>
 210 </varlistentry>
 211 <varlistentry>
 212         <term>MSRPC_BindAck:</term>
 213         <listitem><para>0x0C</para></listitem>
 214 </varlistentry>
 215 </variablelist>
 216 </sect3>
 217
 218 <sect3>
 219 <title>MSRPC Packet info</title>
 220
 221 <para>The meaning of these flags is undocumented</para>
 222
 223 <variablelist>
 224 <varlistentry>
 225         <term>FirstFrag:</term>
 226         <listitem><para>0x01 </para></listitem>
 227 </varlistentry>
 228 <varlistentry>
 229         <term>LastFrag:</term>
 230         <listitem><para>0x02 </para></listitem>
 231 </varlistentry>
 232 <varlistentry>
 233         <term>NotaFrag:</term>
 234         <listitem><para>0x04  </para></listitem>
 235 </varlistentry>
 236 <varlistentry>
 237         <term>RecRespond:</term>
 238         <listitem><para>0x08  </para></listitem>
 239 </varlistentry>
 240 <varlistentry>
 241         <term>NoMultiplex:</term>
 242         <listitem><para>0x10  </para></listitem>
 243 </varlistentry>
 244 <varlistentry>
 245         <term>NotForIdemp:</term>
 246         <listitem><para>0x20  </para></listitem>
 247 </varlistentry>
 248 <varlistentry>
 249         <term>NotforBcast:</term>
 250         <listitem><para>0x40  </para></listitem>
 251 </varlistentry>
 252 <varlistentry>
 253         <term>NoUuid:</term>
 254         <listitem><para>0x80 </para></listitem>
 255 </varlistentry>
 256 </variablelist>
 257
 258 </sect3>
 259
 260 </sect2>
 261
 262 <sect2>
 263 <title>Structures</title>
 264
 265 <sect3><title>VOID *</title>
 266 <para>sizeof VOID* is 32 bits.</para>
 267 </sect3>
 268
 269 <sect3><title>char</title>
 270 <para>sizeof char is 8 bits.</para>
 271 </sect3>
 272
 273 <sect3><title>UTIME</title>
 274 <para>UTIME is 32 bits, indicating time in seconds since 01jan1970.  documented in cifs6.txt (section 3.5 page, page 30).</para>
 275 </sect3>
 276
 277 <sect3><title>NTTIME</title>
 278 <para>NTTIME is 64 bits.  documented in cifs6.txt (section 3.5 page, page 30).</para>
 279 </sect3>
 280
 281 <sect3>
 282 <title>DOM_SID (domain SID structure)</title>
 283
 284 <variablelist>
 285
 286 <varlistentry>
 287         <term>UINT32</term>
 288         <listitem><para>num of sub-authorities in domain SID</para></listitem>
 289 </varlistentry>
 290
 291 <varlistentry>
 292         <term>UINT8</term>
 293         <listitem><para>SID revision number</para></listitem>
 294 </varlistentry>
 295 <varlistentry>
 296         <term>UINT8</term>
 297         <listitem><para>num of sub-authorities in domain SID</para></listitem>
 298 </varlistentry>
 299 <varlistentry>
 300         <term>UINT8[6]</term>
 301         <listitem><para>6 bytes for domain SID - Identifier Authority.</para></listitem>
 302 </varlistentry>
 303
 304 <varlistentry>
 305         <term>UINT16[n_subauths]</term>
 306         <listitem><para>domain SID sub-authorities</para></listitem>
 307 </varlistentry>
 308
 309 </variablelist>
 310
 311 <para><emphasis>Note: the domain SID is documented elsewhere.</emphasis>
 312 </para>
 313
 314 </sect3>
 315
 316 <sect3>
 317 <title>STR (string)</title>
 318
 319 <para>STR (string) is a char[] : a null-terminated string of ascii characters.</para>
 320
 321 </sect3>
 322
 323 <sect3>
 324 <title>UNIHDR (unicode string header) </title>
 325
 326 <variablelist>
 327
 328 <varlistentry>
 329         <term>UINT16</term>
 330         <listitem><para>length of unicode string</para></listitem>
 331 </varlistentry>
 332
 333 <varlistentry>
 334         <term>UINT16</term>
 335         <listitem><para>max length of unicode string</para></listitem>
 336 </varlistentry>
 337
 338 <varlistentry>
 339         <term>UINT32</term>
 340         <listitem><para>4 - undocumented.</para></listitem>
 341 </varlistentry>
 342
 343 </variablelist>
 344
 345 </sect3>
 346
 347 <sect3>
 348 <title>UNIHDR2 (unicode string header plus buffer pointer)</title>
 349
 350 <variablelist>
 351
 352 <varlistentry>
 353         <term>UNIHDR</term>
 354         <listitem><para>unicode string header</para></listitem>
 355 </varlistentry>
 356
 357
 358 <varlistentry>
 359         <term>VOID*</term>
 360         <listitem><para>undocumented buffer pointer</para></listitem>
 361 </varlistentry>
 362
 363 </variablelist>
 364
 365 </sect3>
 366
 367 <sect3>
 368 <title>UNISTR (unicode string)</title>
 369
 370 <variablelist>
 371
 372 <varlistentry>
 373         <term>UINT16[]</term>
 374         <listitem><para>null-terminated string of unicode characters.</para></listitem>
 375 </varlistentry>
 376
 377 </variablelist>
 378
 379 </sect3>
 380
 381 <sect3>
 382 <title>NAME (length-indicated unicode string)</title>
 383
 384 <variablelist>
 385
 386 <varlistentry>
 387         <term>UINT32</term>
 388         <listitem><para>length of unicode string</para></listitem>
 389 </varlistentry>
 390 <varlistentry>
 391         <term>UINT16[]</term>
 392         <listitem><para>null-terminated string of unicode characters.</para></listitem>
 393 </varlistentry>
 394
 395 </variablelist>
 396
 397 </sect3>
 398
 399 <sect3>
 400 <title>UNISTR2 (aligned unicode string)</title>
 401
 402 <variablelist>
 403 <varlistentry>
 404         <term>UINT8[]</term>
 405         <listitem><para>padding to get unicode string 4-byte aligned with the start of the SMB header.</para></listitem>
 406 </varlistentry>
 407 <varlistentry>
 408         <term>UINT32</term>
 409         <listitem><para>max length of unicode string</para></listitem>
 410 </varlistentry>
 411 <varlistentry>
 412         <term>UINT32</term>
 413         <listitem><para>0 - undocumented</para></listitem>
 414 </varlistentry>
 415 <varlistentry>
 416         <term>UINT32</term>
 417         <listitem><para>length of unicode string</para></listitem>
 418 </varlistentry>
 419 <varlistentry>
 420         <term>UINT16[]</term>
 421         <listitem><para>string of uncode characters</para></listitem>
 422 </varlistentry>
 423
 424 </variablelist>
 425
 426 </sect3>
 427
 428 <sect3>
 429 <title>OBJ_ATTR (object attributes)</title>
 430
 431 <variablelist>
 432 <varlistentry>
 433         <term>UINT32</term>
 434 <listitem><para>0x18 - length (in bytes) including the length field.</para></listitem></varlistentry>
 435 <varlistentry>
 436         <term>VOID*</term>
 437 <listitem><para>0 - root directory (pointer)</para></listitem></varlistentry>
 438 <varlistentry>
 439         <term>VOID*</term>
 440 <listitem><para>0 - object name (pointer)</para></listitem></varlistentry>
 441 <varlistentry>
 442         <term>UINT32</term>
 443 <listitem><para>0 - attributes (undocumented)</para></listitem></varlistentry>
 444 <varlistentry>
 445         <term>VOID*</term>
 446 <listitem><para>0 - security descriptior (pointer)</para></listitem></varlistentry>
 447 <varlistentry>
 448         <term>UINT32</term>
 449         <listitem><para>0 - security quality of service</para></listitem>
 450 </varlistentry>
 451
 452 </variablelist>
 453
 454 </sect3>
 455
 456 <sect3>
 457 <title>POL_HND (LSA policy handle)</title>
 458
 459 <variablelist>
 460 <varlistentry>
 461         <term>char[20]</term>
 462         <listitem><para>policy handle</para></listitem>
 463 </varlistentry>
 464 </variablelist>
 465
 466 </sect3>
 467
 468 <sect3>
 469 <title>DOM_SID2 (domain SID structure, SIDS stored in unicode)</title>
 470
 471 <variablelist>
 472 <varlistentry>
 473         <term>UINT32</term>
 474         <listitem><para>5 - SID type</para></listitem>
 475 </varlistentry>
 476 <varlistentry>
 477         <term>UINT32</term>
 478         <listitem><para>0 - undocumented</para></listitem>
 479 </varlistentry>
 480 <varlistentry>
 481         <term>UNIHDR2</term>
 482         <listitem><para>domain SID unicode string header</para></listitem>
 483 </varlistentry>
 484 <varlistentry>
 485         <term>UNISTR</term>
 486         <listitem><para>domain SID unicode string</para></listitem>
 487 </varlistentry>
 488 </variablelist>
 489
 490 <para><emphasis>Note:   there is a conflict between the unicode string header and the unicode string itself as to which to use to indicate string length.  this will need to be resolved.</emphasis></para>
 491
 492 <para><emphasis>Note:   the SID type indicates, for example, an alias; a well-known group etc. this is documented somewhere.</emphasis></para>
 493
 494 </sect3>
 495
 496 <sect3>
 497 <title>DOM_RID (domain RID structure)</title>
 498
 499 <variablelist>
 500 <varlistentry>
 501         <term>UINT32</term>
 502 <listitem><para>5 - well-known SID.  1 - user SID (see ShowACLs)</para></listitem></varlistentry>
 503 <varlistentry>
 504         <term>UINT32</term>
 505         <listitem><para>5 - undocumented</para></listitem>
 506 </varlistentry>
 507 <varlistentry>
 508         <term>UINT32</term>
 509         <listitem><para>domain RID </para></listitem>
 510 </varlistentry>
 511 <varlistentry>
 512         <term>UINT32</term>
 513         <listitem><para>0 - domain index out of above reference domains</para></listitem>
 514 </varlistentry>
 515 </variablelist>
 516
 517 </sect3>
 518
 519 <sect3>
 520 <title>LOG_INFO (server, account, client structure)</title>
 521
 522 <para><emphasis>Note:   logon server name starts with two '\' characters and is upper case.</emphasis></para>
 523
 524 <para><emphasis>Note:   account name is the logon client name from the LSA Request Challenge, with a $ on the end of it, in upper case.</emphasis></para>
 525
 526 <variablelist>
 527 <varlistentry>
 528         <term>VOID*</term>
 529         <listitem><para>undocumented buffer pointer</para></listitem>
 530 </varlistentry>
 531 <varlistentry>
 532         <term>UNISTR2</term>
 533         <listitem><para>logon server unicode string</para></listitem>
 534 </varlistentry>
 535 <varlistentry>
 536         <term>UNISTR2</term>
 537         <listitem><para>account name unicode string</para></listitem>
 538 </varlistentry>
 539 <varlistentry>
 540         <term>UINT16</term>
 541         <listitem><para>sec_chan - security channel type</para></listitem>
 542 </varlistentry>
 543 <varlistentry>
 544         <term>UNISTR2</term>
 545         <listitem><para>logon client machine unicode string</para></listitem>
 546 </varlistentry>
 547 </variablelist>
 548
 549 </sect3>
 550
 551 <sect3>
 552 <title>CLNT_SRV (server, client names structure)</title>
 553
 554 <para><emphasis>Note:   logon server name starts with two '\' characters and is upper case.</emphasis></para>
 555
 556 <variablelist>
 557 <varlistentry>
 558         <term>VOID*</term>
 559         <listitem><para>undocumented buffer pointer</para></listitem>
 560 </varlistentry>
 561 <varlistentry>
 562         <term>UNISTR2</term>
 563         <listitem><para>logon server unicode string</para></listitem>
 564 </varlistentry>
 565 <varlistentry>
 566         <term>VOID*</term>
 567         <listitem><para>undocumented buffer pointer</para></listitem>
 568 </varlistentry>
 569 <varlistentry>
 570         <term>UNISTR2</term>
 571         <listitem><para>logon client machine unicode string</para></listitem>
 572 </varlistentry>
 573 </variablelist>
 574
 575 </sect3>
 576
 577 <sect3>
 578 <title>CREDS (credentials + time stamp)</title>
 579
 580 <variablelist>
 581 <varlistentry>
 582         <term>char[8]</term>
 583         <listitem><para>credentials</para></listitem>
 584 </varlistentry>
 585 <varlistentry>
 586         <term>UTIME</term>
 587         <listitem><para>time stamp</para></listitem>
 588 </varlistentry>
 589 </variablelist>
 590
 591 </sect3>
 592
 593 <sect3>
 594 <title>CLNT_INFO2 (server, client structure, client credentials)</title>
 595
 596 <para><emphasis>Note: whenever this structure appears in a request, you must take a copy of the client-calculated credentials received, because they will beused in subsequent credential checks.  the presumed intention is to
 597         maintain an authenticated request/response trail.</emphasis></para>
 598
 599 <variablelist>
 600 <varlistentry>
 601         <term>CLNT_SRV</term>
 602         <listitem><para>client and server names</para></listitem>
 603 </varlistentry>
 604 <varlistentry>
 605         <term>UINT8[]</term>
 606         <listitem><para>???? padding, for 4-byte alignment with SMB header.</para></listitem>
 607 </varlistentry>
 608 <varlistentry>
 609         <term>VOID*</term>
 610         <listitem><para>pointer to client credentials.</para></listitem>
 611 </varlistentry>
 612 <varlistentry>
 613         <term>CREDS</term>
 614         <listitem><para>client-calculated credentials + client time</para></listitem>
 615 </varlistentry>
 616 </variablelist>
 617
 618 </sect3>
 619
 620 <sect3>
 621 <title>CLNT_INFO (server, account, client structure, client credentials)</title>
 622 <para><emphasis>Note: whenever this structure appears in a request, you must take a copy of the client-calculated credentials received, because they will be used in subsequent credential checks.  the presumed intention is to maintain an authenticated request/response trail.</emphasis></para>
 623
 624 <variablelist>
 625 <varlistentry>
 626         <term>LOG_INFO</term>
 627         <listitem><para>logon account info</para></listitem>
 628 </varlistentry>
 629 <varlistentry>
 630         <term>CREDS</term>
 631         <listitem><para>client-calculated credentials + client time</para></listitem>
 632 </varlistentry>
 633 </variablelist>
 634
 635 </sect3>
 636
 637 <sect3>
 638 <title>ID_INFO_1 (id info structure, auth level 1)</title>
 639
 640 <variablelist>
 641 <varlistentry>
 642         <term>VOID*</term>
 643         <listitem><para>ptr_id_info_1</para></listitem>
 644 </varlistentry>
 645 <varlistentry>
 646         <term>UNIHDR</term>
 647         <listitem><para>domain name unicode header</para></listitem>
 648 </varlistentry>
 649 <varlistentry>
 650         <term>UINT32</term>
 651         <listitem><para>param control</para></listitem>
 652 </varlistentry>
 653 <varlistentry>
 654         <term>UINT64</term>
 655         <listitem><para>logon ID</para></listitem>
 656 </varlistentry>
 657 <varlistentry>
 658         <term>UNIHDR</term>
 659         <listitem><para>user name unicode header</para></listitem>
 660 </varlistentry>
 661 <varlistentry>
 662         <term>UNIHDR</term>
 663         <listitem><para>workgroup name unicode header</para></listitem>
 664 </varlistentry>
 665 <varlistentry>
 666         <term>char[16]</term>
 667         <listitem><para>arc4 LM OWF Password</para></listitem>
 668 </varlistentry>
 669 <varlistentry>
 670         <term>char[16]</term>
 671         <listitem><para>arc4 NT OWF Password</para></listitem>
 672 </varlistentry>
 673 <varlistentry>
 674         <term>UNISTR2</term>
 675         <listitem><para>domain name unicode string</para></listitem>
 676 </varlistentry>
 677 <varlistentry>
 678         <term>UNISTR2</term>
 679         <listitem><para>user name unicode string</para></listitem>
 680 </varlistentry>
 681 <varlistentry>
 682         <term>UNISTR2</term>
 683         <listitem><para>workstation name unicode string</para></listitem>
 684 </varlistentry>
 685 </variablelist>
 686
 687 </sect3>
 688
 689 <sect3>
 690 <title>SAM_INFO (sam logon/logoff id info structure)</title>
 691
 692 <para><emphasis>Note: presumably, the return credentials is supposedly for the server to verify that the credential chain hasn't been compromised.</emphasis></para>
 693
 694 <variablelist>
 695 <varlistentry>
 696         <term>CLNT_INFO2</term>
 697         <listitem><para>client identification/authentication info</para></listitem>
 698 </varlistentry>
 699 <varlistentry>
 700         <term>VOID*</term>
 701         <listitem><para>pointer to return credentials.</para></listitem>
 702 </varlistentry>
 703 <varlistentry>
 704         <term>CRED</term>
 705         <listitem><para>return credentials - ignored.</para></listitem>
 706 </varlistentry>
 707 <varlistentry>
 708         <term>UINT16</term>
 709         <listitem><para>logon level</para></listitem>
 710 </varlistentry>
 711 <varlistentry>
 712         <term>UINT16</term>
 713         <listitem><para>switch value</para></listitem>
 714 </varlistentry>
 715
 716 </variablelist>
 717
 718 <para><programlisting>
 719         switch (switch_value)
 720         case 1:
 721         {
 722             ID_INFO_1     id_info_1;
 723         }
 724 </programlisting></para>
 725
 726 </sect3>
 727
 728 <sect3>
 729 <title>GID (group id info)</title>
 730
 731 <variablelist>
 732 <varlistentry>
 733         <term>UINT32</term>
 734 <listitem><para>group id</para></listitem></varlistentry>
 735 <varlistentry>
 736         <term>UINT32</term>
 737 <listitem><para>user attributes (only used by NT 3.1 and 3.51)</para></listitem></varlistentry>
 738 </variablelist>
 739
 740 </sect3>
 741
 742 <sect3>
 743 <title>DOM_REF (domain reference info)</title>
 744
 745 <variablelist>
 746 <varlistentry>
 747         <term>VOID*</term>
 748         <listitem><para>undocumented buffer pointer.</para></listitem>
 749 </varlistentry>
 750 <varlistentry>
 751         <term>UINT32</term>
 752         <listitem><para>num referenced domains?</para></listitem>
 753 </varlistentry>
 754 <varlistentry>
 755         <term>VOID*</term>
 756         <listitem><para>undocumented domain name buffer pointer.</para></listitem>
 757 </varlistentry>
 758 <varlistentry>
 759         <term>UINT32</term>
 760         <listitem><para>32 - max number of entries</para></listitem>
 761 </varlistentry>
 762 <varlistentry>
 763         <term>UINT32</term>
 764         <listitem><para>4 - num referenced domains?</para></listitem>
 765 </varlistentry>
 766 <varlistentry>
 767         <term>UNIHDR2</term>
 768         <listitem><para>domain name unicode string header</para></listitem>
 769 </varlistentry>
 770 <varlistentry>
 771         <term>UNIHDR2[num_ref_doms-1]</term>
 772         <listitem><para>referenced domain unicode string headers</para></listitem>
 773 </varlistentry>
 774 <varlistentry>
 775         <term>UNISTR</term>
 776         <listitem><para>domain name unicode string</para></listitem>
 777 </varlistentry>
 778 <varlistentry>
 779         <term>DOM_SID[num_ref_doms]</term>
 780         <listitem><para>referenced domain SIDs</para></listitem>
 781 </varlistentry>
 782 </variablelist>
 783
 784 </sect3>
 785
 786 <sect3>
 787 <title>DOM_INFO (domain info, levels 3 and 5 are the same))</title>
 788
 789 <variablelist>
 790 <varlistentry>
 791         <term>UINT8[]</term>
 792         <listitem><para>??? padding to get 4-byte alignment with start of SMB header</para></listitem>
 793 </varlistentry>
 794 <varlistentry>
 795         <term>UINT16</term>
 796         <listitem><para>domain name string length * 2</para></listitem>
 797 </varlistentry>
 798 <varlistentry>
 799         <term>UINT16</term>
 800         <listitem><para>domain name string length * 2</para></listitem>
 801 </varlistentry>
 802 <varlistentry>
 803         <term>VOID*</term>
 804         <listitem><para>undocumented domain name string buffer pointer</para></listitem>
 805 </varlistentry>
 806 <varlistentry>
 807         <term>VOID*</term>
 808 <listitem><para>undocumented domain SID string buffer pointer</para></listitem></varlistentry>
 809 <varlistentry>
 810         <term>UNISTR2</term>
 811 <listitem><para>domain name (unicode string)</para></listitem></varlistentry>
 812 <varlistentry>
 813         <term>DOM_SID</term>
 814         <listitem><para>domain SID</para></listitem>
 815 </varlistentry>
 816 </variablelist>
 817
 818 </sect3>
 819
 820 <sect3>
 821 <title>USER_INFO (user logon info)</title>
 822
 823 <para><emphasis>Note: it would be nice to know what the 16 byte user session key is for.</emphasis></para>
 824
 825 <variablelist>
 826 <varlistentry>
 827         <term>NTTIME</term>
 828         <listitem><para>logon time</para></listitem>
 829 </varlistentry>
 830 <varlistentry>
 831         <term>NTTIME</term>
 832         <listitem><para>logoff time</para></listitem>
 833 </varlistentry>
 834 <varlistentry>
 835         <term>NTTIME</term>
 836         <listitem><para>kickoff time</para></listitem>
 837 </varlistentry>
 838 <varlistentry>
 839         <term>NTTIME</term>
 840         <listitem><para>password last set time</para></listitem>
 841 </varlistentry>
 842 <varlistentry>
 843         <term>NTTIME</term>
 844         <listitem><para>password can change time</para></listitem>
 845 </varlistentry>
 846 <varlistentry>
 847         <term>NTTIME</term>
 848         <listitem><para>password must change time</para></listitem>
 849 </varlistentry>
 850 <varlistentry>
 851         <term>UNIHDR</term>
 852         <listitem><para>username unicode string header</para></listitem>
 853 </varlistentry>
 854 <varlistentry>
 855         <term>UNIHDR</term>
 856         <listitem><para>user's full name unicode string header</para></listitem>
 857 </varlistentry>
 858 <varlistentry>
 859         <term>UNIHDR</term>
 860         <listitem><para>logon script unicode string header</para></listitem>
 861 </varlistentry>
 862 <varlistentry>
 863         <term>UNIHDR</term>
 864         <listitem><para>profile path unicode string header</para></listitem>
 865 </varlistentry>
 866 <varlistentry>
 867         <term>UNIHDR</term>
 868         <listitem><para>home directory unicode string header</para></listitem>
 869 </varlistentry>
 870 <varlistentry>
 871         <term>UNIHDR</term>
 872         <listitem><para>home directory drive unicode string header</para></listitem>
 873 </varlistentry>
 874 <varlistentry>
 875         <term>UINT16</term>
 876         <listitem><para>logon count</para></listitem>
 877 </varlistentry>
 878 <varlistentry>
 879         <term>UINT16</term>
 880         <listitem><para>bad password count</para></listitem>
 881 </varlistentry>
 882 <varlistentry>
 883         <term>UINT32</term>
 884         <listitem><para>User ID</para></listitem>
 885 </varlistentry>
 886 <varlistentry>
 887         <term>UINT32</term>
 888         <listitem><para>Group ID</para></listitem>
 889 </varlistentry>
 890 <varlistentry>
 891         <term>UINT32</term>
 892         <listitem><para>num groups</para></listitem>
 893 </varlistentry>
 894 <varlistentry>
 895         <term>VOID*</term>
 896         <listitem><para>undocumented buffer pointer to groups.</para></listitem>
 897 </varlistentry>
 898 <varlistentry>
 899         <term>UINT32</term>
 900         <listitem><para>user flags</para></listitem>
 901 </varlistentry>
 902 <varlistentry>
 903         <term>char[16]</term>
 904         <listitem><para>user session key</para></listitem>
 905 </varlistentry>
 906 <varlistentry>
 907         <term>UNIHDR</term>
 908         <listitem><para>logon server unicode string header</para></listitem>
 909 </varlistentry>
 910 <varlistentry>
 911         <term>UNIHDR</term>
 912         <listitem><para>logon domain unicode string header</para></listitem>
 913 </varlistentry>
 914 <varlistentry>
 915         <term>VOID*</term>
 916         <listitem><para>undocumented logon domain id pointer</para></listitem>
 917 </varlistentry>
 918 <varlistentry>
 919         <term>char[40]</term>
 920         <listitem><para>40 undocumented padding bytes.  future expansion?</para></listitem>
 921 </varlistentry>
 922 <varlistentry>
 923         <term>UINT32</term>
 924         <listitem><para>0 - num_other_sids?</para></listitem>
 925 </varlistentry>
 926 <varlistentry>
 927         <term>VOID*</term>
 928         <listitem><para>NULL - undocumented pointer to other domain SIDs.</para></listitem>
 929 </varlistentry>
 930 <varlistentry>
 931         <term>UNISTR2</term>
 932         <listitem><para>username unicode string</para></listitem>
 933 </varlistentry>
 934 <varlistentry>
 935         <term>UNISTR2</term>
 936         <listitem><para>user's full name unicode string</para></listitem>
 937 </varlistentry>
 938 <varlistentry>
 939         <term>UNISTR2</term>
 940         <listitem><para>logon script unicode string</para></listitem>
 941 </varlistentry>
 942 <varlistentry>
 943         <term>UNISTR2</term>
 944         <listitem><para>profile path unicode string</para></listitem>
 945 </varlistentry>
 946 <varlistentry>
 947         <term>UNISTR2</term>
 948         <listitem><para>home directory unicode string</para></listitem>
 949 </varlistentry>
 950 <varlistentry>
 951         <term>UNISTR2</term>
 952         <listitem><para>home directory drive unicode string</para></listitem>
 953 </varlistentry>
 954 <varlistentry>
 955         <term>UINT32</term>
 956         <listitem><para>num groups</para></listitem>
 957 </varlistentry>
 958 <varlistentry>
 959         <term>GID[num_groups]</term>
 960         <listitem><para>group info</para></listitem>
 961 </varlistentry>
 962 <varlistentry>
 963         <term>UNISTR2</term>
 964         <listitem><para>logon server unicode string</para></listitem>
 965 </varlistentry>
 966 <varlistentry>
 967         <term>UNISTR2</term>
 968         <listitem><para>logon domain unicode string</para></listitem>
 969 </varlistentry>
 970 <varlistentry>
 971         <term>DOM_SID</term>
 972         <listitem><para>domain SID</para></listitem>
 973 </varlistentry>
 974 <varlistentry>
 975         <term>DOM_SID[num_sids]</term>
 976         <listitem><para>other domain SIDs?</para></listitem>
 977 </varlistentry>
 978 </variablelist>
 979
 980 </sect3>
 981
 982 <sect3>
 983 <title>SH_INFO_1_PTR (pointers to level 1 share info strings)</title>
 984
 985 <para><emphasis>Note:   see cifsrap2.txt section5, page 10.</emphasis></para>
 986
 987 <simplelist>
 988 <member>0 for shi1_type indicates a  Disk.</member>
 989 <member>1 for shi1_type indicates a  Print Queue.</member>
 990 <member>2 for shi1_type indicates a  Device.</member>
 991 <member>3 for shi1_type indicates an IPC pipe.</member>
 992 <member>0x8000 0000 (top bit set in shi1_type) indicates a hidden share.</member>
 993 </simplelist>
 994
 995 <variablelist>
 996
 997 <varlistentry>
 998         <term>VOID*</term>
 999         <listitem><para>shi1_netname - pointer to net name</para></listitem>
1000 </varlistentry>
1001 <varlistentry>
1002         <term>UINT32</term>
1003         <listitem><para>shi1_type    - type of share.  0 - undocumented.</para></listitem>
1004 </varlistentry>
1005 <varlistentry>
1006         <term>VOID*</term>
1007         <listitem><para>shi1_remark  - pointer to comment.</para></listitem>
1008 </varlistentry>
1009
1010 </variablelist>
1011
1012 </sect3>
1013
1014 <sect3>
1015 <title>SH_INFO_1_STR (level 1 share info strings)</title>
1016
1017 <variablelist>
1018 <varlistentry>
1019         <term>UNISTR2</term>
1020         <listitem><para>shi1_netname - unicode string of net name</para></listitem>
1021 </varlistentry>
1022 <varlistentry>
1023         <term>UNISTR2</term>
1024         <listitem><para>shi1_remark  - unicode string of comment.</para></listitem>
1025 </varlistentry>
1026 </variablelist>
1027
1028 </sect3>
1029
1030 <sect3>
1031 <title>SHARE_INFO_1_CTR</title>
1032
1033 <para>share container with 0 entries:</para>
1034
1035 <variablelist>
1036 <varlistentry>
1037         <term>UINT32</term>
1038         <listitem><para>0 - EntriesRead</para></listitem>
1039 </varlistentry>
1040 <varlistentry>
1041         <term>UINT32</term>
1042         <listitem><para>0 - Buffer</para></listitem>
1043 </varlistentry>
1044 </variablelist>
1045
1046 <para>share container with > 0 entries:</para>
1047
1048 <variablelist>
1049 <varlistentry>
1050         <term>UINT32</term>
1051         <listitem><para>EntriesRead</para></listitem>
1052 </varlistentry>
1053 <varlistentry>
1054         <term>UINT32</term>
1055         <listitem><para>non-zero - Buffer</para></listitem>
1056 </varlistentry>
1057 <varlistentry>
1058         <term>UINT32</term>
1059         <listitem><para>EntriesRead</para></listitem>
1060 </varlistentry>
1061 <varlistentry>
1062         <term>SH_INFO_1_PTR[EntriesRead]</term>
1063         <listitem><para>share entry pointers</para></listitem>
1064 </varlistentry>
1065 <varlistentry>
1066         <term>SH_INFO_1_STR[EntriesRead]</term>
1067         <listitem><para>share entry strings</para></listitem>
1068 </varlistentry>
1069 <varlistentry>
1070         <term>UINT8[]</term>
1071         <listitem><para>padding to get unicode string 4-byte aligned with start of the SMB header.</para></listitem>
1072 </varlistentry>
1073 <varlistentry>
1074         <term>UINT32</term>
1075         <listitem><para>EntriesRead</para></listitem>
1076 </varlistentry>
1077 <varlistentry>
1078         <term>UINT32</term>
1079         <listitem><para>0 - padding</para></listitem>
1080 </varlistentry>
1081
1082 </variablelist>
1083
1084 </sect3>
1085
1086 <sect3>
1087 <title>SERVER_INFO_101</title>
1088
1089 <para><emphasis>Note:   see cifs6.txt section 6.4 - the fields described therein will be of assistance here.  for example, the type listed below is the         same as fServerType, which is described in 6.4.1. </emphasis></para>
1090
1091 <variablelist>
1092 <varlistentry>
1093         <term>SV_TYPE_WORKSTATION</term>
1094         <listitem><para>0x00000001  All workstations</para></listitem>
1095 </varlistentry>
1096 <varlistentry>
1097         <term>SV_TYPE_SERVER</term>
1098         <listitem><para>0x00000002  All servers</para></listitem>
1099 </varlistentry>
1100 <varlistentry>
1101         <term>SV_TYPE_SQLSERVER</term>
1102         <listitem><para>0x00000004  Any server running with SQL server</para></listitem>
1103 </varlistentry>
1104 <varlistentry>
1105         <term>SV_TYPE_DOMAIN_CTRL</term>
1106         <listitem><para>0x00000008  Primary domain controller</para></listitem>
1107 </varlistentry>
1108 <varlistentry>
1109         <term>SV_TYPE_DOMAIN_BAKCTRL</term>
1110         <listitem><para>0x00000010  Backup domain controller</para></listitem>
1111 </varlistentry>
1112 <varlistentry>
1113         <term>SV_TYPE_TIME_SOURCE</term>
1114         <listitem><para>0x00000020  Server running the timesource service</para></listitem>
1115 </varlistentry>
1116 <varlistentry>
1117         <term>SV_TYPE_AFP</term>
1118         <listitem><para>0x00000040  Apple File Protocol servers</para></listitem>
1119 </varlistentry>
1120 <varlistentry>
1121         <term>SV_TYPE_NOVELL</term>
1122         <listitem><para>0x00000080  Novell servers</para></listitem>
1123 </varlistentry>
1124 <varlistentry>
1125         <term>SV_TYPE_DOMAIN_MEMBER</term>
1126         <listitem><para>0x00000100  Domain Member</para></listitem>
1127 </varlistentry>
1128 <varlistentry>
1129         <term>SV_TYPE_PRINTQ_SERVER</term>
1130         <listitem><para>0x00000200  Server sharing print queue</para></listitem>
1131 </varlistentry>
1132 <varlistentry>
1133         <term>SV_TYPE_DIALIN_SERVER</term>
1134         <listitem><para>0x00000400  Server running dialin service.</para></listitem>
1135 </varlistentry>
1136 <varlistentry>
1137         <term>SV_TYPE_XENIX_SERVER</term>
1138         <listitem><para>0x00000800  Xenix server</para></listitem>
1139 </varlistentry>
1140 <varlistentry>
1141         <term>SV_TYPE_NT</term>
1142         <listitem><para>0x00001000  NT server</para></listitem>
1143 </varlistentry>
1144 <varlistentry>
1145         <term>SV_TYPE_WFW</term>
1146         <listitem><para>0x00002000  Server running Windows for </para></listitem>
1147 </varlistentry>
1148 <varlistentry>
1149         <term>SV_TYPE_SERVER_NT</term>
1150         <listitem><para>0x00008000  Windows NT non DC server</para></listitem>
1151 </varlistentry>
1152 <varlistentry>
1153         <term>SV_TYPE_POTENTIAL_BROWSER</term>
1154         <listitem><para>0x00010000  Server that can run the browser service</para></listitem>
1155 </varlistentry>
1156 <varlistentry>
1157         <term>SV_TYPE_BACKUP_BROWSER</term>
1158         <listitem><para>0x00020000  Backup browser server</para></listitem>
1159 </varlistentry>
1160 <varlistentry>
1161         <term>SV_TYPE_MASTER_BROWSER</term>
1162         <listitem><para>0x00040000  Master browser server</para></listitem>
1163 </varlistentry>
1164 <varlistentry>
1165         <term>SV_TYPE_DOMAIN_MASTER</term>
1166         <listitem><para>0x00080000  Domain Master Browser server</para></listitem>
1167 </varlistentry>
1168 <varlistentry>
1169         <term>SV_TYPE_LOCAL_LIST_ONLY</term>
1170         <listitem><para>0x40000000  Enumerate only entries marked "local"</para></listitem>
1171 </varlistentry>
1172 <varlistentry>
1173         <term>SV_TYPE_DOMAIN_ENUM</term>
1174         <listitem><para>0x80000000  Enumerate Domains. The pszServer and pszDomain parameters must be NULL.</para></listitem>
1175 </varlistentry>
1176
1177 </variablelist>
1178
1179 <variablelist>
1180 <varlistentry>
1181         <term>UINT32</term>
1182         <listitem><para>500 - platform_id</para></listitem>
1183 </varlistentry>
1184 <varlistentry>
1185         <term>VOID*</term>
1186         <listitem><para>pointer to name</para></listitem>
1187 </varlistentry>
1188 <varlistentry>
1189         <term>UINT32</term>
1190         <listitem><para>5 - major version</para></listitem>
1191 </varlistentry>
1192 <varlistentry>
1193         <term>UINT32</term>
1194 <listitem><para>4 - minor version</para></listitem></varlistentry>
1195 <varlistentry>
1196         <term>UINT32</term>
1197 <listitem><para>type (SV_TYPE_... bit field)</para></listitem></varlistentry>
1198 <varlistentry>
1199         <term>VOID*</term>
1200         <listitem><para>pointer to comment</para></listitem>
1201 </varlistentry>
1202 <varlistentry>
1203         <term>UNISTR2</term>
1204         <listitem><para>sv101_name - unicode string of server name</para></listitem>
1205 </varlistentry>
1206 <varlistentry>
1207         <term>UNISTR2</term>
1208         <listitem><para>sv_101_comment  - unicode string of server comment.</para></listitem>
1209 </varlistentry>
1210 <varlistentry>
1211         <term>UINT8[]</term>
1212         <listitem><para>padding to get unicode string 4-byte aligned with start of the SMB header.</para></listitem>
1213 </varlistentry>
1214 </variablelist>
1215
1216 </sect3>
1217 </sect2>
1218 </sect1>
1219
1220 <sect1>
1221 <title>MSRPC over Transact Named Pipe</title>
1222
1223 <para>For details on the SMB Transact Named Pipe, see cifs6.txt</para>
1224
1225 <sect2>
1226 <title>MSRPC Pipes</title>
1227
1228 <para>
1229 The MSRPC is conducted over an SMB Transact Pipe with a name of
1230 <filename>\PIPE\</filename>.  You must first obtain a 16 bit file handle, by
1231 sending a SMBopenX with the pipe name <filename>\PIPE\srvsvc</filename> for
1232 example.  You can then perform an SMB Trans,
1233 and must carry out an SMBclose on the file handle once you are finished.
1234 </para>
1235
1236 <para>
1237 Trans Requests must be sent with two setup UINT16s, no UINT16 params (none
1238 known about), and UINT8 data parameters sufficient to contain the MSRPC
1239 header, and MSRPC data.  The first UINT16 setup parameter must be either
1240 0x0026 to indicate an RPC, or 0x0001 to indicate Set Named Pipe Handle
1241 state.  The second UINT16 parameter must be the file handle for the pipe,
1242 obtained above.
1243 </para>
1244
1245 <para>
1246 The Data section for an API Command of 0x0026 (RPC pipe) in the Trans
1247 Request is the RPC Header, followed by the RPC Data.  The Data section for
1248 an API Command of 0x0001 (Set Named Pipe Handle state) is two bytes.  The
1249 only value seen for these two bytes is 0x00 0x43.
1250 </para>
1251
1252 <para>
1253 MSRPC Responses are sent as response data inside standard SMB Trans
1254 responses, with the MSRPC Header, MSRPC Data and MSRPC tail.
1255 </para>
1256
1257 <para>
1258 It is suspected that the Trans Requests will need to be at least 2-byte
1259 aligned (probably 4-byte).  This is standard practice for SMBs.  It is also
1260 independent of the observed 4-byte alignments with the start of the MSRPC
1261 header, including the 4-byte alignment between the MSRPC header and the
1262 MSRPC data.
1263 </para>
1264
1265 <para>
1266 First, an SMBtconX connection is made to the IPC$ share.  The connection
1267 must be made using encrypted passwords, not clear-text.  Then, an SMBopenX
1268 is made on the pipe.  Then, a Set Named Pipe Handle State must be sent,
1269 after which the pipe is ready to accept API commands.  Lastly, and SMBclose
1270 is sent.
1271 </para>
1272
1273 <para>
1274 To be resolved:
1275 </para>
1276
1277 <para>
1278 lkcl/01nov97 there appear to be two additional bytes after the null-terminated \PIPE\ name for the RPC pipe.  Values seen so far are
1279 listed below:</para>
1280
1281 <para><programlisting>
1282         initial SMBopenX request:         RPC API command 0x26 params:
1283         "\\PIPE\\lsarpc"                  0x65 0x63; 0x72 0x70; 0x44 0x65;
1284         "\\PIPE\\srvsvc"                  0x73 0x76; 0x4E 0x00; 0x5C 0x43;
1285 </programlisting></para>
1286
1287 </sect2>
1288
1289 <sect2>
1290 <title>Header</title>
1291
1292 <para>[section to be rewritten, following receipt of work by Duncan Stansfield]</para>
1293
1294 <para>Interesting note: if you set packed data representation to 0x0100 0000
1295 then all 4-byte and 2-byte word ordering is turned around!</para>
1296
1297 <para>The start of each of the NTLSA and NETLOGON named pipes begins with:</para>
1298
1299 <segmentedlist>
1300 <segtitle>offset</segtitle><segtitle>Variable type</segtitle><segtitle>Variable data</segtitle>
1301 <seglistitem><seg>00</seg><seg>UINT8</seg><seg>5 - RPC major version</seg></seglistitem>
1302 <seglistitem><seg>01</seg><seg>UINT8</seg><seg>0 - RPC minor version</seg></seglistitem>
1303 <seglistitem><seg>02</seg><seg>UINT8</seg><seg>2 - RPC response packet</seg></seglistitem>
1304 <seglistitem><seg>03</seg><seg>UINT8</seg><seg>3 - (FirstFrag bit-wise or with LastFrag)</seg></seglistitem>
1305 <seglistitem><seg>04</seg><seg>UINT32</seg><seg>0x1000 0000 - packed data representation</seg></seglistitem>
1306 <seglistitem><seg>08</seg><seg>UINT16</seg><seg>fragment length - data size (bytes) inc header and tail.</seg></seglistitem>
1307 <seglistitem><seg>0A</seg><seg>UINT16</seg><seg>0 - authentication length </seg></seglistitem>
1308 <seglistitem><seg>0C</seg><seg>UINT32</seg><seg>call identifier. matches 12th UINT32 of incoming RPC data.</seg></seglistitem>
1309 <seglistitem><seg>10</seg><seg>UINT32</seg><seg>allocation hint - data size (bytes) minus header and tail.</seg></seglistitem>
1310 <seglistitem><seg>14</seg><seg>UINT16</seg><seg>0 - presentation context identifier</seg></seglistitem>
1311 <seglistitem><seg>16</seg><seg>UINT8</seg><seg>0 - cancel count</seg></seglistitem>
1312 <seglistitem><seg>17</seg><seg>UINT8</seg><seg>in replies: 0 - reserved; in requests: opnum - see #defines.</seg></seglistitem>
1313 <seglistitem><seg>18</seg><seg>......</seg><seg>start of data (goes on for allocation_hint bytes)</seg></seglistitem>
1314 </segmentedlist>
1315
1316 <sect3>
1317 <title>RPC_Packet for request, response, bind and bind acknowledgement</title>
1318
1319 <variablelist>
1320 <varlistentry>
1321         <term>UINT8 versionmaj</term>
1322 <listitem><para>reply same as request (0x05)</para></listitem></varlistentry>
1323 <varlistentry>
1324         <term>UINT8 versionmin</term>
1325 <listitem><para>reply same as request (0x00)</para></listitem></varlistentry>
1326 <varlistentry>
1327         <term>UINT8 type</term>
1328 <listitem><para>one of the MSRPC_Type enums</para></listitem></varlistentry>
1329 <varlistentry>
1330         <term>UINT8 flags</term>
1331 <listitem><para>reply same as request (0x00 for Bind, 0x03 for Request)</para></listitem></varlistentry>
1332 <varlistentry>
1333         <term>UINT32 representation</term>
1334 <listitem><para>reply same as request (0x00000010)</para></listitem></varlistentry>
1335 <varlistentry>
1336         <term>UINT16 fraglength</term>
1337 <listitem><para>the length of the data section of the SMB trans packet</para></listitem></varlistentry>
1338 <varlistentry>
1339         <term>UINT16 authlength</term>
1340         <listitem><para></para></listitem>
1341 </varlistentry>
1342 <varlistentry>
1343         <term>UINT32 callid</term>
1344 <listitem><para>call identifier. (e.g. 0x00149594)</para></listitem></varlistentry>
1345 <varlistentry>
1346         <term>* stub USE TvPacket</term>
1347 <listitem><para>the remainder of the packet depending on the "type"</para></listitem></varlistentry>
1348 </variablelist>
1349
1350 </sect3>
1351
1352 <sect3>
1353 <title>Interface identification</title>
1354
1355 <para>the interfaces are numbered. as yet I haven't seen more than one interface used on the same pipe name srvsvc</para>
1356
1357 <para><programlisting>
1358 abstract (0x4B324FC8, 0x01D31670, 0x475A7812, 0x88E16EBF, 0x00000003)
1359 transfer (0x8A885D04, 0x11C91CEB, 0x0008E89F, 0x6048102B, 0x00000002)
1360 </programlisting></para>
1361
1362 </sect3>
1363
1364 <sect3>
1365 <title>RPC_Iface RW</title>
1366
1367 <variablelist>
1368 <varlistentry>
1369         <term>UINT8 byte[16]</term>
1370 <listitem><para>16 bytes of number</para></listitem></varlistentry>
1371 <varlistentry>
1372         <term>UINT32 version</term>
1373 <listitem><para>the interface number</para></listitem></varlistentry>
1374 </variablelist>
1375
1376
1377 </sect3>
1378
1379 <sect3>
1380 <title>RPC_ReqBind RW</title>
1381
1382 <para>the remainder of the packet after the header if "type" was Bind in the response header, "type" should be BindAck</para>
1383
1384 <variablelist>
1385 <varlistentry>
1386         <term>UINT16 maxtsize</term>
1387 <listitem><para>maximum transmission fragment size (0x1630)</para></listitem></varlistentry>
1388 <varlistentry>
1389         <term>UINT16 maxrsize</term>
1390 <listitem><para>max receive fragment size (0x1630)</para></listitem></varlistentry>
1391 <varlistentry>
1392         <term>UINT32 assocgid</term>
1393 <listitem><para>associated group id (0x0)</para></listitem></varlistentry>
1394 <varlistentry>
1395         <term>UINT32 numelements</term>
1396 <listitem><para>the number of elements (0x1)</para></listitem></varlistentry>
1397 <varlistentry>
1398         <term>UINT16 contextid</term>
1399 <listitem><para>presentation context identifier (0x0)</para></listitem></varlistentry>
1400 <varlistentry>
1401         <term>UINT8 numsyntaxes</term>
1402 <listitem><para>the number of syntaxes (has always been 1?)(0x1)</para></listitem></varlistentry>
1403 <varlistentry>
1404         <term>UINT8[]</term>
1405 <listitem><para>4-byte alignment padding, against SMB header</para></listitem></varlistentry>
1406 <varlistentry>
1407         <term>* abstractint USE RPC_Iface</term>
1408 <listitem><para>num and vers. of interface client is using</para></listitem></varlistentry>
1409 <varlistentry>
1410         <term>* transferint USE RPC_Iface</term>
1411         <listitem><para>num and vers. of interface to use for replies</para></listitem>
1412 </varlistentry>
1413 </variablelist>
1414
1415 </sect3>
1416
1417 <sect3>
1418 <title>RPC_Address RW</title>
1419
1420 <variablelist>
1421 <varlistentry>
1422         <term>UINT16 length</term>
1423 <listitem><para>length of the string including null terminator</para></listitem></varlistentry>
1424 <varlistentry>
1425         <term>* port USE string</term>
1426 <listitem><para>the string above in single byte, null terminated form</para></listitem></varlistentry>
1427 </variablelist>
1428
1429 </sect3>
1430
1431 <sect3>
1432 <title>RPC_ResBind RW</title>
1433
1434 <para>the response to place after the header in the reply packet</para>
1435
1436 <variablelist>
1437 <varlistentry>
1438         <term>UINT16 maxtsize</term>
1439 <listitem><para>same as request</para></listitem></varlistentry>
1440 <varlistentry>
1441         <term>UINT16 maxrsize</term>
1442 <listitem><para>same as request</para></listitem></varlistentry>
1443 <varlistentry>
1444         <term>UINT32 assocgid</term>
1445 <listitem><para>zero</para></listitem></varlistentry>
1446 <varlistentry>
1447         <term>* secondaddr USE RPC_Address</term>
1448 <listitem><para>the address string, as described earlier</para></listitem></varlistentry>
1449 <varlistentry>
1450         <term>UINT8[]</term>
1451 <listitem><para>4-byte alignment padding, against SMB header</para></listitem></varlistentry>
1452 <varlistentry>
1453         <term>UINT8 numresults</term>
1454 <listitem><para>the number of results (0x01)</para></listitem></varlistentry>
1455 <varlistentry>
1456         <term>UINT8[]</term>
1457 <listitem><para>4-byte alignment padding, against SMB header</para></listitem></varlistentry>
1458 <varlistentry>
1459         <term>UINT16 result</term>
1460 <listitem><para>result (0x00 = accept)</para></listitem></varlistentry>
1461 <varlistentry>
1462         <term>UINT16 reason</term>
1463 <listitem><para>reason (0x00 = no reason specified)</para></listitem></varlistentry>
1464 <varlistentry>
1465         <term>* transfersyntax USE RPC_Iface</term>
1466 <listitem><para>the transfer syntax from the request</para></listitem></varlistentry>
1467 </variablelist>
1468
1469 </sect3>
1470
1471 <sect3>
1472 <title>RPC_ReqNorm RW</title>
1473
1474 <para>the remainder of the packet after the header for every other other request</para>
1475
1476 <variablelist>
1477 <varlistentry>
1478         <term>UINT32 allochint</term>
1479 <listitem><para>the size of the stub data in bytes</para></listitem></varlistentry>
1480 <varlistentry>
1481         <term>UINT16 prescontext</term>
1482 <listitem><para>presentation context identifier (0x0)</para></listitem></varlistentry>
1483 <varlistentry>
1484         <term>UINT16 opnum</term>
1485 <listitem><para>operation number (0x15)</para></listitem></varlistentry>
1486 <varlistentry>
1487         <term>* stub USE TvPacket</term>
1488 <listitem><para>a packet dependent on the pipe name (probably the interface) and the op number)</para></listitem></varlistentry>
1489 </variablelist>
1490
1491 </sect3>
1492
1493 <sect3>
1494 <title>RPC_ResNorm RW</title>
1495
1496 <variablelist>
1497 <varlistentry>
1498         <term>UINT32 allochint</term>
1499 <listitem><para># size of the stub data in bytes</para></listitem></varlistentry>
1500 <varlistentry>
1501         <term>UINT16 prescontext</term>
1502 <listitem><para># presentation context identifier (same as request)</para></listitem></varlistentry>
1503 <varlistentry>
1504         <term>UINT8 cancelcount</term>
1505 <listitem><para># cancel count? (0x0)</para></listitem></varlistentry>
1506 <varlistentry>
1507         <term>UINT8 reserved</term>
1508 <listitem><para># 0 - one byte padding</para></listitem></varlistentry>
1509 <varlistentry>
1510         <term>* stub USE TvPacket</term>
1511 <listitem><para># the remainder of the reply</para></listitem></varlistentry>
1512 </variablelist>
1513 </sect3>
1514
1515 </sect2>
1516
1517 <sect2>
1518 <title>Tail</title>
1519
1520 <para>The end of each of the NTLSA and NETLOGON named pipes ends with:</para>
1521
1522 <variablelist>
1523 <varlistentry>
1524         <term>......</term>
1525         <listitem><para>end of data</para></listitem>
1526 </varlistentry>
1527 <varlistentry>
1528         <term>UINT32</term>
1529         <listitem><para>return code</para></listitem>
1530 </varlistentry>
1531 </variablelist>
1532
1533 </sect2>
1534
1535 <sect2>
1536 <title>RPC Bind / Bind Ack</title>
1537
1538 <para>
1539 RPC Binds are the process of associating an RPC pipe (e.g \PIPE\lsarpc)
1540 with a "transfer syntax" (see RPC_Iface structure).  The purpose for doing
1541 this is unknown.
1542 </para>
1543
1544 <para><emphasis>Note: The RPC_ResBind SMB Transact request is sent with two uint16 setup parameters.  The first is 0x0026; the second is the file handle
1545         returned by the SMBopenX Transact response.</emphasis></para>
1546
1547 <para><emphasis>Note:   The RPC_ResBind members maxtsize, maxrsize and assocgid are the same in the response as the same members in the RPC_ReqBind.  The
1548         RPC_ResBind member transfersyntax is the same in the response as
1549         the</emphasis></para>
1550
1551 <para><emphasis>Note:   The RPC_ResBind response member secondaddr contains the name of what is presumed to be the service behind the RPC pipe.  The
1552         mapping identified so far is:</emphasis></para>
1553
1554 <variablelist>
1555
1556 <varlistentry>
1557         <term>initial SMBopenX request:</term>
1558         <listitem><para>RPC_ResBind response:</para></listitem>
1559 </varlistentry>
1560
1561 <varlistentry>
1562         <term>"\\PIPE\\srvsvc"</term>
1563         <listitem><para>"\\PIPE\\ntsvcs"</para></listitem>
1564 </varlistentry>
1565 <varlistentry>
1566         <term>"\\PIPE\\samr"</term>
1567         <listitem><para>"\\PIPE\\lsass"</para></listitem>
1568 </varlistentry>
1569 <varlistentry>
1570         <term>"\\PIPE\\lsarpc"</term>
1571         <listitem><para>"\\PIPE\\lsass"</para></listitem>
1572 </varlistentry>
1573 <varlistentry>
1574         <term>"\\PIPE\\wkssvc"</term>
1575         <listitem><para>"\\PIPE\\wksvcs"</para></listitem>
1576 </varlistentry>
1577 <varlistentry>
1578         <term>"\\PIPE\\NETLOGON"</term>
1579         <listitem><para>"\\PIPE\\NETLOGON"</para></listitem>
1580 </varlistentry>
1581 </variablelist>
1582
1583 <para><emphasis>Note:   The RPC_Packet fraglength member in both the Bind Request and Bind Acknowledgment must contain the length of the entire RPC data, including the RPC_Packet header.</emphasis></para>
1584
1585 <para>Request:</para>
1586
1587 <simplelist>
1588 <member>RPC_Packet</member>
1589 <member>RPC_ReqBind</member>
1590 </simplelist>
1591
1592 <para>Response:</para>
1593 <simplelist>
1594 <member>RPC_Packet</member>
1595 <member>RPC_ResBind</member>
1596 </simplelist>
1597
1598 </sect2>
1599
1600 <sect2>
1601 <title>NTLSA Transact Named Pipe</title>
1602
1603 <para>The sequence of actions taken on this pipe are:</para>
1604
1605 <simplelist>
1606 <member>Establish a connection to the IPC$ share (SMBtconX).  use encrypted passwords.</member>
1607 <member>Open an RPC Pipe with the name "\\PIPE\\lsarpc".  Store the file handle.</member>
1608 <member>Using the file handle, send a Set Named Pipe Handle state to 0x4300.</member>
1609 <member>Send an LSA Open Policy request.  Store the Policy Handle.</member>
1610 <member>Using the Policy Handle, send LSA Query Info Policy requests, etc.</member>
1611 <member>Using the Policy Handle, send an LSA Close.</member>
1612 <member>Close the IPC$ share.</member>
1613 </simplelist>
1614
1615 <para>Defines for this pipe, identifying the query are:</para>
1616 <variablelist>
1617 <varlistentry>
1618         <term>LSA Open Policy:</term>
1619         <listitem><para>0x2c</para></listitem>
1620 </varlistentry>
1621 <varlistentry>
1622         <term>LSA Query Info Policy:</term>
1623         <listitem><para>0x07</para></listitem>
1624 </varlistentry>
1625 <varlistentry>
1626         <term>LSA Enumerate Trusted Domains:</term>
1627         <listitem><para>0x0d</para></listitem>
1628 </varlistentry>
1629 <varlistentry>
1630         <term>LSA Open Secret:</term>
1631         <listitem><para>0xff</para></listitem>
1632 </varlistentry>
1633 <varlistentry>
1634         <term>LSA Lookup SIDs:</term>
1635         <listitem><para>0xfe</para></listitem>
1636 </varlistentry>
1637 <varlistentry>
1638         <term>LSA Lookup Names:</term>
1639         <listitem><para>0xfd</para></listitem>
1640 </varlistentry>
1641 <varlistentry>
1642         <term>LSA Close:</term>
1643         <listitem><para>0x00</para></listitem>
1644 </varlistentry>
1645 </variablelist>
1646
1647 </sect2>
1648
1649 <sect2>
1650 <title>LSA Open Policy</title>
1651
1652 <para><emphasis>Note:   The policy handle can be anything you like.</emphasis></para>
1653
1654 <sect3>
1655 <title>Request</title>
1656
1657 <variablelist>
1658 <varlistentry>
1659         <term>VOID*</term>
1660         <listitem><para>buffer pointer</para></listitem>
1661 </varlistentry>
1662 <varlistentry>
1663         <term>UNISTR2</term>
1664         <listitem><para>server name - unicode string starting with two '\'s</para></listitem>
1665 </varlistentry>
1666 <varlistentry>
1667         <term>OBJ_ATTR</term>
1668         <listitem><para>object attributes</para></listitem>
1669 </varlistentry>
1670 <varlistentry>
1671         <term>UINT32</term>
1672         <listitem><para>1 - desired access</para></listitem>
1673 </varlistentry>
1674 </variablelist>
1675
1676 </sect3>
1677
1678 <sect3>
1679 <title>Response</title>
1680
1681 <variablelist>
1682
1683 <varlistentry>
1684         <term>POL_HND</term>
1685         <listitem><para>LSA policy handle</para></listitem>
1686 </varlistentry>
1687
1688 <varlistentry>
1689         <term>return</term>
1690         <listitem><para>0 - indicates success</para></listitem>
1691 </varlistentry>
1692
1693 </variablelist>
1694
1695 </sect3>
1696
1697 </sect2>
1698
1699 <sect2>
1700 <title>LSA Query Info Policy</title>
1701
1702 <para><emphasis>Note:   The info class in response must be the same as that in the request.</emphasis></para>
1703
1704 <sect3>
1705 <title>Request</title>
1706
1707 <variablelist>
1708 <varlistentry>
1709         <term>POL_HND</term>
1710 <listitem><para>LSA policy handle</para></listitem></varlistentry>
1711 <varlistentry>
1712         <term>UINT16</term>
1713 <listitem><para>info class (also a policy handle?)</para></listitem></varlistentry>
1714 </variablelist>
1715
1716 </sect3>
1717
1718 <sect3>
1719 <title>Response</title>
1720
1721 <variablelist>
1722 <varlistentry>
1723         <term>VOID*</term>
1724         <listitem><para>undocumented buffer pointer</para></listitem>
1725 </varlistentry>
1726 <varlistentry>
1727         <term>UINT16</term>
1728         <listitem><para>info class (same as info class in request).</para></listitem>
1729 </varlistentry>
1730
1731 </variablelist>
1732
1733 <para><programlisting>
1734 switch (info class)
1735 case 3:
1736 case 5:
1737 {
1738 DOM_INFO domain info, levels 3 and 5 (are the same).
1739 }
1740
1741 return    0 - indicates success
1742 </programlisting></para>
1743
1744 </sect3>
1745
1746 </sect2>
1747
1748 <sect2>
1749 <title>LSA Enumerate Trusted Domains</title>
1750
1751 <sect3>
1752 <title>Request</title>
1753
1754 <para>no extra data</para>
1755
1756 </sect3>
1757
1758 <sect3>
1759 <title>Response</title>
1760
1761 <variablelist>
1762 <varlistentry>
1763         <term>UINT32</term>
1764         <listitem><para>0 - enumeration context</para></listitem>
1765 </varlistentry>
1766 <varlistentry>
1767         <term>UINT32</term>
1768         <listitem><para>0 - entries read</para></listitem>
1769 </varlistentry>
1770 <varlistentry>
1771         <term>UINT32</term>
1772         <listitem><para>0 - trust information</para></listitem>
1773 </varlistentry>
1774 <varlistentry>
1775         <term>return</term>
1776         <listitem><para>0x8000 001a - "no trusted domains" success code</para></listitem>
1777 </varlistentry>
1778 </variablelist>
1779
1780 </sect3>
1781 </sect2>
1782
1783 <sect2>
1784 <title>LSA Open Secret</title>
1785
1786 <sect3>
1787 <title>Request</title>
1788
1789 <para>no extra data</para>
1790
1791 </sect3>
1792
1793 <sect3>
1794 <title>Response</title>
1795
1796 <variablelist>
1797 <varlistentry>
1798         <term>UINT32</term>
1799         <listitem><para>0 - undocumented</para></listitem>
1800 </varlistentry>
1801 <varlistentry>
1802         <term>UINT32</term>
1803         <listitem><para>0 - undocumented</para></listitem>
1804 </varlistentry>
1805 <varlistentry>
1806         <term>UINT32</term>
1807         <listitem><para>0 - undocumented</para></listitem>
1808 </varlistentry>
1809 <varlistentry>
1810         <term>UINT32</term>
1811         <listitem><para>0 - undocumented</para></listitem>
1812 </varlistentry>
1813 <varlistentry>
1814         <term>UINT32</term>
1815         <listitem><para>0 - undocumented</para></listitem>
1816 </varlistentry>
1817 </variablelist>
1818
1819 <para>return    0x0C00 0034 - "no such secret" success code</para>
1820
1821 </sect3>
1822
1823 </sect2>
1824
1825 <sect2>
1826 <title>LSA Close</title>
1827
1828 <sect3>
1829 <title>Request</title>
1830
1831 <variablelist>
1832 <varlistentry>
1833         <term>POL_HND</term>
1834         <listitem><para>policy handle to be closed</para></listitem>
1835 </varlistentry>
1836 </variablelist>
1837
1838 </sect3>
1839
1840 <sect3>
1841 <title>Response</title>
1842
1843 <variablelist>
1844 <varlistentry>
1845         <term>POL_HND</term>
1846 <listitem><para>0s - closed policy handle (all zeros)</para></listitem></varlistentry>
1847 </variablelist>
1848
1849 <para>return    0 - indicates success</para>
1850
1851 </sect3>
1852 </sect2>
1853
1854 <sect2>
1855 <title>LSA Lookup SIDS</title>
1856
1857 <para><emphasis>Note:   num_entries in response must be same as num_entries in request.</emphasis></para>
1858
1859 <sect3>
1860 <title>Request</title>
1861
1862 <variablelist>
1863 <varlistentry>
1864         <term>POL_HND</term>
1865         <listitem><para>LSA policy handle</para></listitem>
1866 </varlistentry>
1867 <varlistentry>
1868         <term>UINT32</term>
1869         <listitem><para>num_entries</para></listitem>
1870 </varlistentry>
1871 <varlistentry>
1872         <term>VOID*</term>
1873         <listitem><para>undocumented domain SID buffer pointer</para></listitem>
1874 </varlistentry>
1875 <varlistentry>
1876         <term>VOID*</term>
1877         <listitem><para>undocumented domain name buffer pointer</para></listitem>
1878 </varlistentry>
1879 <varlistentry>
1880         <term>VOID*[num_entries] undocumented domain SID pointers to be looked up.
1881 </term>
1882 <listitem><para>DOM_SID[num_entries] domain SIDs to be looked up.</para></listitem></varlistentry>
1883 <varlistentry>
1884         <term>char[16]</term>
1885         <listitem><para>completely undocumented 16 bytes.</para></listitem>
1886 </varlistentry>
1887 </variablelist>
1888
1889 </sect3>
1890
1891 <sect3>
1892 <title>Response</title>
1893
1894 <variablelist>
1895 <varlistentry>
1896         <term>DOM_REF</term>
1897 <listitem><para>domain reference response</para></listitem></varlistentry>
1898 <varlistentry>
1899         <term>UINT32</term>
1900 <listitem><para>num_entries (listed above)</para></listitem></varlistentry>
1901 <varlistentry>
1902         <term>VOID*</term>
1903 <listitem><para>undocumented buffer pointer</para></listitem></varlistentry>
1904 <varlistentry>
1905         <term>UINT32</term>
1906 <listitem><para>num_entries (listed above)</para></listitem></varlistentry>
1907 <varlistentry>
1908         <term>DOM_SID2[num_entries]</term>
1909 <listitem><para>domain SIDs (from Request, listed above).</para></listitem></varlistentry>
1910 <varlistentry>
1911         <term>UINT32</term>
1912 <listitem><para>num_entries (listed above)</para></listitem></varlistentry>
1913 </variablelist>
1914
1915 <para>return                0 - indicates success</para>
1916
1917 </sect3>
1918
1919 </sect2>
1920
1921 <sect2>
1922 <title>LSA Lookup Names</title>
1923
1924 <para><emphasis>Note:   num_entries in response must be same as num_entries in request.</emphasis></para>
1925
1926 <sect3>
1927 <title>Request</title>
1928
1929 <variablelist>
1930 <varlistentry>
1931         <term>POL_HND</term>
1932         <listitem><para>LSA policy handle</para></listitem>
1933 </varlistentry>
1934 <varlistentry>
1935         <term>UINT32</term>
1936         <listitem><para>num_entries</para></listitem>
1937 </varlistentry>
1938 <varlistentry>
1939         <term>UINT32</term>
1940         <listitem><para>num_entries</para></listitem>
1941 </varlistentry>
1942 <varlistentry>
1943         <term>VOID*</term>
1944         <listitem><para>undocumented domain SID buffer pointer</para></listitem>
1945 </varlistentry>
1946 <varlistentry>
1947         <term>VOID*</term>
1948         <listitem><para>undocumented domain name buffer pointer</para></listitem>
1949 </varlistentry>
1950 <varlistentry>
1951         <term>NAME[num_entries]</term>
1952         <listitem><para>names to be looked up.</para></listitem>
1953 </varlistentry>
1954 <varlistentry>
1955         <term>char[]</term>
1956         <listitem><para>undocumented bytes - falsely translated SID structure?</para></listitem>
1957 </varlistentry>
1958 </variablelist>
1959
1960 </sect3>
1961
1962 <sect3>
1963 <title>Response</title>
1964
1965 <variablelist>
1966 <varlistentry>
1967         <term>DOM_REF</term>
1968 <listitem><para>domain reference response</para></listitem></varlistentry>
1969 <varlistentry>
1970         <term>UINT32</term>
1971 <listitem><para>num_entries (listed above)</para></listitem></varlistentry>
1972 <varlistentry>
1973         <term>VOID*</term>
1974 <listitem><para>undocumented buffer pointer</para></listitem></varlistentry>
1975 <varlistentry>
1976         <term>UINT32</term>
1977 <listitem><para>num_entries (listed above)</para></listitem></varlistentry>
1978 <varlistentry>
1979         <term>DOM_RID[num_entries]</term>
1980 <listitem><para>domain SIDs (from Request, listed above).</para></listitem></varlistentry>
1981 <varlistentry>
1982         <term>UINT32</term>
1983 <listitem><para>num_entries (listed above)</para></listitem></varlistentry>
1984 </variablelist>
1985
1986 <para>return                0 - indicates success</para>
1987
1988 </sect3>
1989 </sect2>
1990 </sect1>
1991
1992 <sect1>
1993 <title>NETLOGON rpc Transact Named Pipe</title>
1994
1995 <para>The sequence of actions taken on this pipe are:</para>
1996
1997 <simplelist>
1998 <member>tablish a connection to the IPC$ share (SMBtconX).  use encrypted passwords.</member>
1999 <member>en an RPC Pipe with the name "\\PIPE\\NETLOGON".  Store the file handle.</member>
2000 <member>ing the file handle, send a Set Named Pipe Handle state to 0x4300.</member>
2001 <member>eate Client Challenge. Send LSA Request Challenge.  Store Server Challenge.</member>
2002 <member>lculate Session Key.  Send an LSA Auth 2 Challenge.  Store Auth2 Challenge.</member>
2003 <member>lc/Verify Client Creds.  Send LSA Srv PW Set.  Calc/Verify Server Creds.</member>
2004 <member>lc/Verify Client Creds.  Send LSA SAM Logon .  Calc/Verify Server Creds.</member>
2005 <member>lc/Verify Client Creds.  Send LSA SAM Logoff.  Calc/Verify Server Creds.</member>
2006 <member>ose the IPC$ share.</member>
2007 </simplelist>
2008
2009 <para>Defines for this pipe, identifying the query are</para>
2010
2011 <variablelist>
2012 <varlistentry>
2013         <term>LSA Request Challenge:</term>
2014         <listitem><para>0x04</para></listitem>
2015 </varlistentry>
2016 <varlistentry>
2017         <term>LSA Server Password Set:</term>
2018         <listitem><para>0x06</para></listitem>
2019 </varlistentry>
2020 <varlistentry>
2021         <term>LSA SAM Logon:</term>
2022         <listitem><para>0x02</para></listitem>
2023 </varlistentry>
2024 <varlistentry>
2025         <term>LSA SAM Logoff:</term>
2026         <listitem><para>0x03</para></listitem>
2027 </varlistentry>
2028 <varlistentry>
2029         <term>LSA Auth 2:</term>
2030         <listitem><para>0x0f</para></listitem>
2031 </varlistentry>
2032 <varlistentry>
2033         <term>LSA Logon Control:</term>
2034         <listitem><para>0x0e</para></listitem>
2035 </varlistentry>
2036 </variablelist>
2037
2038 <sect2>
2039 <title>LSA Request Challenge</title>
2040
2041 <para><emphasis>Note:   logon server name starts with two '\' characters and is upper case.</emphasis></para>
2042
2043 <para><emphasis>Note:   logon client is the machine, not the user.</emphasis></para>
2044
2045 <para><emphasis>Note:   the initial LanManager password hash, against which the challenge is issued, is the machine name itself (lower case).  there will becalls issued (LSA Server Password Set) which will change this, later. refusing these calls allows you to always deal with the same password (i.e the LM# of the machine name in lower case).</emphasis></para>
2046
2047 <sect3>
2048 <title>Request</title>
2049
2050 <variablelist>
2051 <varlistentry>
2052         <term>VOID*</term>
2053         <listitem><para>undocumented buffer pointer</para></listitem>
2054 </varlistentry>
2055 <varlistentry>
2056         <term>UNISTR2</term>
2057         <listitem><para>logon server unicode string</para></listitem>
2058 </varlistentry>
2059 <varlistentry>
2060         <term>UNISTR2</term>
2061         <listitem><para>logon client unicode string</para></listitem>
2062 </varlistentry>
2063 <varlistentry>
2064         <term>char[8]</term>
2065         <listitem><para>client challenge</para></listitem>
2066 </varlistentry>
2067 </variablelist>
2068
2069 </sect3>
2070
2071 <sect3>
2072 <title>Response</title>
2073
2074 <variablelist>
2075 <varlistentry>
2076         <term>char[8]</term>
2077         <listitem><para>server challenge</para></listitem>
2078 </varlistentry>
2079 </variablelist>
2080
2081 <para>return    0 - indicates success</para>
2082
2083 </sect3>
2084
2085 </sect2>
2086
2087 <sect2>
2088 <title>LSA Authenticate 2</title>
2089
2090 <para><emphasis>Note:   in between request and response, calculate the client credentials, and check them against the client-calculated credentials (this process uses the previously received client credentials).</emphasis></para>
2091
2092 <para><emphasis>Note:   neg_flags in the response is the same as that in the request.</emphasis></para>
2093
2094 <para><emphasis>Note:   you must take a copy of the client-calculated credentials received      here, because they will be used in subsequent authentication packets.</emphasis></para>
2095
2096 <sect3>
2097 <title>Request</title>
2098
2099 <variablelist>
2100 <varlistentry>
2101         <term>LOG_INFO</term>
2102         <listitem><para>client identification info</para></listitem>
2103 </varlistentry>
2104 <varlistentry>
2105         <term>char[8]</term>
2106         <listitem><para>client-calculated credentials</para></listitem>
2107 </varlistentry>
2108 <varlistentry>
2109         <term>UINT8[]</term>
2110 <listitem><para>padding to 4-byte align with start of SMB header.</para></listitem></varlistentry>
2111 <varlistentry>
2112         <term>UINT32</term>
2113 <listitem><para>neg_flags - negotiated flags (usual value is 0x0000 01ff)</para></listitem></varlistentry>
2114 </variablelist>
2115
2116 </sect3>
2117
2118 <sect3>
2119 <title>Response</title>
2120
2121 <variablelist>
2122 <varlistentry>
2123         <term>char[8]</term>
2124         <listitem><para>server credentials.</para></listitem>
2125 </varlistentry>
2126 <varlistentry>
2127         <term>UINT32</term>
2128         <listitem><para>neg_flags - same as neg_flags in request.</para></listitem>
2129 </varlistentry>
2130 </variablelist>
2131
2132 <para>return    0 - indicates success.  failure value unknown.</para>
2133
2134 </sect3>
2135
2136 </sect2>
2137
2138 <sect2>
2139 <title>LSA Server Password Set</title>
2140
2141 <para><emphasis>Note: the new password is suspected to be a DES encryption using the old password to generate the key.</emphasis></para>
2142
2143 <para><emphasis>Note: in between request and response, calculate the client credentials, and check them against the client-calculated credentials (this process uses the previously received client credentials).</emphasis></para>
2144
2145 <para><emphasis>Note: the server credentials are constructed from the client-calculated credentials and the client time + 1 second.</emphasis></para>
2146
2147 <para><emphasis>Note: you must take a copy of the client-calculated credentials received here, because they will be used in subsequent authentication packets.</emphasis></para>
2148
2149 <sect3>
2150 <title>Request</title>
2151
2152 <variablelist>
2153 <varlistentry>
2154         <term>CLNT_INFO</term>
2155         <listitem><para>client identification/authentication info</para></listitem>
2156 </varlistentry>
2157 <varlistentry>
2158         <term>char[]</term>
2159         <listitem><para>new password - undocumented.</para></listitem>
2160 </varlistentry>
2161 </variablelist>
2162
2163 </sect3>
2164
2165 <sect3>
2166 <title>Response</title>
2167
2168 <variablelist>
2169 <varlistentry>
2170         <term>CREDS</term>
2171         <listitem><para>server credentials.  server time stamp appears to be ignored.</para></listitem>
2172 </varlistentry>
2173 </variablelist>
2174
2175 <para>return    0 - indicates success; 0xC000 006a indicates failure</para>
2176
2177 </sect3>
2178 </sect2>
2179
2180 <sect2>
2181 <title>LSA SAM Logon</title>
2182
2183 <para><emphasis>
2184 Note:   valid_user is True iff the username and password hash are valid for
2185         the requested domain.
2186 </emphasis></para>
2187
2188 <sect3>
2189 <title>Request</title>
2190 <variablelist>
2191 <varlistentry>
2192         <term>SAM_INFO</term>
2193         <listitem><para>sam_id structure</para></listitem>
2194 </varlistentry>
2195 </variablelist>
2196
2197 </sect3>
2198
2199 <sect3>
2200 <title>Response</title>
2201
2202 <variablelist>
2203 <varlistentry>
2204         <term>VOID*</term>
2205         <listitem><para>undocumented buffer pointer</para></listitem>
2206 </varlistentry>
2207 <varlistentry>
2208         <term>CREDS</term>
2209         <listitem><para>server credentials.  server time stamp appears to be ignored.</para></listitem>
2210 </varlistentry>
2211 </variablelist>
2212
2213 <para><programlisting>
2214 if (valid_user)
2215 {
2216         UINT16      3 - switch value indicating USER_INFO structure.
2217     VOID*     non-zero - pointer to USER_INFO structure
2218     USER_INFO user logon information
2219
2220     UINT32    1 - Authoritative response; 0 - Non-Auth?
2221
2222     return    0 - indicates success
2223 }
2224 else
2225 {
2226         UINT16    0 - switch value.  value to indicate no user presumed.
2227     VOID*     0x0000 0000 - indicates no USER_INFO structure.
2228
2229     UINT32    1 - Authoritative response; 0 - Non-Auth?
2230
2231     return    0xC000 0064 - NT_STATUS_NO_SUCH_USER.
2232 }
2233 </programlisting></para>
2234
2235 </sect3>
2236
2237 </sect2>
2238
2239 <sect2>
2240 <title>LSA SAM Logoff</title>
2241
2242 <para><emphasis>
2243 Note:   presumably, the SAM_INFO structure is validated, and a (currently
2244         undocumented) error code returned if the Logoff is invalid.
2245 </emphasis></para>
2246
2247 <sect3>
2248 <title>Request</title>
2249
2250 <variablelist>
2251 <varlistentry>
2252         <term>SAM_INFO</term>
2253         <listitem><para>sam_id structure</para></listitem>
2254 </varlistentry>
2255 </variablelist>
2256
2257 </sect3>
2258
2259 <sect3>
2260 <title>Response</title>
2261
2262 <variablelist>
2263 <varlistentry>
2264         <term>VOID*</term>
2265         <listitem><para>undocumented buffer pointer</para></listitem>
2266 </varlistentry>
2267 <varlistentry>
2268         <term>CREDS</term>
2269         <listitem><para>server credentials.  server time stamp appears to be ignored.</para></listitem>
2270 </varlistentry>
2271 </variablelist>
2272
2273 <para>return      0 - indicates success.  undocumented failure indication.</para>
2274
2275 </sect3>
2276 </sect2>
2277 </sect1>
2278
2279 <sect1>
2280 <title>\\MAILSLOT\NET\NTLOGON</title>
2281
2282 <para><emphasis>
2283 Note:   mailslots will contain a response mailslot, to which the response
2284         should be sent.  the target NetBIOS name is REQUEST_NAME&lt;20&gt;, where
2285         REQUEST_NAME is the name of the machine that sent the request.
2286 </emphasis></para>
2287
2288 <sect2>
2289 <title>Query for PDC</title>
2290
2291 <para><emphasis>Note:   NTversion, LMNTtoken, LM20token in response are the same as those       given in the request.</emphasis></para>
2292
2293 <sect3>
2294 <title>Request</title>
2295
2296 <variablelist>
2297 <varlistentry>
2298         <term>UINT16</term>
2299         <listitem><para>0x0007 - Query for PDC</para></listitem>
2300 </varlistentry>
2301 <varlistentry>
2302         <term>STR</term>
2303         <listitem><para>machine name</para></listitem>
2304 </varlistentry>
2305 <varlistentry>
2306         <term>STR</term>
2307         <listitem><para>response mailslot</para></listitem>
2308 </varlistentry>
2309 <varlistentry>
2310         <term>UINT8[]</term>
2311         <listitem><para>padding to 2-byte align with start of mailslot.</para></listitem>
2312 </varlistentry>
2313 <varlistentry>
2314         <term>UNISTR</term>
2315         <listitem><para>machine name</para></listitem>
2316 </varlistentry>
2317 <varlistentry>
2318         <term>UINT32</term>
2319         <listitem><para>NTversion</para></listitem>
2320 </varlistentry>
2321 <varlistentry>
2322         <term>UINT16</term>
2323         <listitem><para>LMNTtoken</para></listitem>
2324 </varlistentry>
2325 <varlistentry>
2326         <term>UINT16</term>
2327         <listitem><para>LM20token</para></listitem>
2328 </varlistentry>
2329 </variablelist>
2330
2331 </sect3>
2332
2333 <sect3>
2334 <title>Response</title>
2335
2336 <variablelist>
2337 <varlistentry>
2338         <term>UINT16</term>
2339 <listitem><para>0x000A - Respose to Query for PDC</para></listitem></varlistentry>
2340 <varlistentry>
2341         <term>STR</term>
2342 <listitem><para>machine name (in uppercase)</para></listitem></varlistentry>
2343 <varlistentry>
2344         <term>UINT8[]</term>
2345         <listitem><para>padding to 2-byte align with start of mailslot.</para></listitem>
2346 </varlistentry>
2347 <varlistentry>
2348         <term>UNISTR</term>
2349         <listitem><para>machine name</para></listitem>
2350 </varlistentry>
2351 <varlistentry>
2352         <term>UNISTR</term>
2353 <listitem><para>domain name</para></listitem></varlistentry>
2354 <varlistentry>
2355         <term>UINT32</term>
2356 <listitem><para>NTversion (same as received in request)</para></listitem></varlistentry>
2357 <varlistentry>
2358         <term>UINT16</term>
2359 <listitem><para>LMNTtoken (same as received in request)</para></listitem></varlistentry>
2360 <varlistentry>
2361         <term>UINT16</term>
2362 <listitem><para>LM20token (same as received in request)</para></listitem></varlistentry>
2363 </variablelist>
2364
2365 </sect3>
2366 </sect2>
2367
2368 <sect2>
2369 <title>SAM Logon</title>
2370
2371 <para><emphasis>Note: machine name in response is preceded by two '\' characters.</emphasis></para>
2372
2373 <para><emphasis>Note:   NTversion, LMNTtoken, LM20token in response are the same as those given in the request.</emphasis></para>
2374
2375 <para><emphasis>Note:   user name in the response is presumably the same as that in the request.</emphasis></para>
2376
2377 <sect3>
2378 <title>Request</title>
2379
2380 <variablelist>
2381 <varlistentry>
2382         <term>UINT16</term>
2383         <listitem><para>0x0012 - SAM Logon</para></listitem>
2384 </varlistentry>
2385 <varlistentry>
2386         <term>UINT16</term>
2387         <listitem><para>request count</para></listitem>
2388 </varlistentry>
2389 <varlistentry>
2390         <term>UNISTR</term>
2391         <listitem><para>machine name</para></listitem>
2392 </varlistentry>
2393 <varlistentry>
2394         <term>UNISTR</term>
2395         <listitem><para>user name</para></listitem>
2396 </varlistentry>
2397 <varlistentry>
2398         <term>STR</term>
2399         <listitem><para>response mailslot</para></listitem>
2400 </varlistentry>
2401 <varlistentry>
2402         <term>UINT32</term>
2403         <listitem><para>alloweable account</para></listitem>
2404 </varlistentry>
2405 <varlistentry>
2406         <term>UINT32</term>
2407         <listitem><para>domain SID size</para></listitem>
2408 </varlistentry>
2409 <varlistentry>
2410         <term>char[sid_size]</term>
2411         <listitem><para>domain SID, of sid_size bytes.</para></listitem>
2412 </varlistentry>
2413 <varlistentry>
2414         <term>UINT8[]</term>
2415         <listitem><para>???? padding to 4? 2? -byte align with start of mailslot.</para></listitem>
2416 </varlistentry>
2417 <varlistentry>
2418         <term>UINT32</term>
2419         <listitem><para>NTversion</para></listitem>
2420 </varlistentry>
2421 <varlistentry>
2422         <term>UINT16</term>
2423         <listitem><para>LMNTtoken</para></listitem>
2424 </varlistentry>
2425 <varlistentry>
2426         <term>UINT16</term>
2427         <listitem><para>LM20token</para></listitem>
2428 </varlistentry>
2429 </variablelist>
2430
2431 </sect3>
2432
2433 <sect3>
2434 <title>Response</title>
2435
2436 <variablelist>
2437 <varlistentry>
2438         <term>UINT16</term>
2439         <listitem><para>0x0013 - Response to SAM Logon</para></listitem>
2440 </varlistentry>
2441 <varlistentry>
2442         <term>UNISTR</term>
2443         <listitem><para>machine name</para></listitem>
2444 </varlistentry>
2445 <varlistentry>
2446         <term>UNISTR</term>
2447         <listitem><para>user name - workstation trust account</para></listitem>
2448 </varlistentry>
2449 <varlistentry>
2450         <term>UNISTR</term>
2451         <listitem><para>domain name </para></listitem>
2452 </varlistentry>
2453 <varlistentry>
2454         <term>UINT32</term>
2455         <listitem><para>NTversion</para></listitem>
2456 </varlistentry>
2457 <varlistentry>
2458         <term>UINT16</term>
2459         <listitem><para>LMNTtoken</para></listitem>
2460 </varlistentry>
2461 <varlistentry>
2462         <term>UINT16</term>
2463         <listitem><para>LM20token</para></listitem>
2464 </varlistentry>
2465 </variablelist>
2466
2467 </sect3>
2468 </sect2>
2469 </sect1>
2470
2471 <sect1>
2472 <title>SRVSVC Transact Named Pipe</title>
2473
2474 <para>Defines for this pipe, identifying the query are:</para>
2475
2476 <variablelist>
2477 <varlistentry>
2478         <term>Net Share Enum</term>
2479         <listitem><para>0x0f</para></listitem>
2480 </varlistentry>
2481 <varlistentry>
2482         <term>Net Server Get Info</term>
2483         <listitem><para>0x15</para></listitem>
2484 </varlistentry>
2485
2486 </variablelist>
2487
2488 <sect2>
2489 <title>Net Share Enum</title>
2490
2491 <para><emphasis>Note:   share level and switch value in the response are presumably the same as those in the request.</emphasis></para>
2492
2493 <para><emphasis>Note:   cifsrap2.txt (section 5) may be of limited assistance here.</emphasis></para>
2494
2495 <sect3>
2496 <title>Request</title>
2497
2498 <variablelist>
2499 <varlistentry>
2500         <term>VOID*</term>
2501 <listitem><para>pointer (to server name?)</para></listitem></varlistentry>
2502 <varlistentry>
2503         <term>UNISTR2</term>
2504         <listitem><para>server name</para></listitem>
2505 </varlistentry>
2506 <varlistentry>
2507         <term>UINT8[]</term>
2508         <listitem><para>padding to get unicode string 4-byte aligned with the start of the SMB header.</para></listitem>
2509 </varlistentry>
2510 <varlistentry>
2511         <term>UINT32</term>
2512         <listitem><para>share level</para></listitem>
2513 </varlistentry>
2514 <varlistentry>
2515         <term>UINT32</term>
2516         <listitem><para>switch value</para></listitem>
2517 </varlistentry>
2518 <varlistentry>
2519         <term>VOID*</term>
2520         <listitem><para>pointer to SHARE_INFO_1_CTR</para></listitem>
2521 </varlistentry>
2522 <varlistentry>
2523         <term>SHARE_INFO_1_CTR</term>
2524         <listitem><para>share info with 0 entries</para></listitem>
2525 </varlistentry>
2526 <varlistentry>
2527         <term>UINT32</term>
2528 <listitem><para>preferred maximum length (0xffff ffff)</para></listitem></varlistentry>
2529 </variablelist>
2530 </sect3>
2531
2532 <sect3>
2533 <title>Response</title>
2534
2535 <variablelist>
2536 <varlistentry>
2537         <term>UINT32</term>
2538         <listitem><para>share level</para></listitem>
2539 </varlistentry>
2540 <varlistentry>
2541         <term>UINT32</term>
2542         <listitem><para>switch value</para></listitem>
2543 </varlistentry>
2544 <varlistentry>
2545         <term>VOID*</term>
2546 <listitem><para>pointer to SHARE_INFO_1_CTR</para></listitem></varlistentry>
2547 <varlistentry>
2548         <term>SHARE_INFO_1_CTR</term>
2549 <listitem><para>share info (only added if share info ptr is non-zero)</para></listitem></varlistentry>
2550 </variablelist>
2551
2552 <para>return            0 - indicates success</para>
2553
2554 </sect3>
2555 </sect2>
2556
2557 <sect2>
2558 <title>Net Server Get Info</title>
2559
2560 <para><emphasis>Note:   level is the same value as in the request.</emphasis></para>
2561
2562 <sect3>
2563 <title>Request</title>
2564
2565 <variablelist>
2566 <varlistentry>
2567         <term>UNISTR2</term>
2568         <listitem><para>server name</para></listitem>
2569 </varlistentry>
2570 <varlistentry>
2571         <term>UINT32</term>
2572         <listitem><para>switch level</para></listitem>
2573 </varlistentry>
2574 </variablelist>
2575
2576 </sect3>
2577
2578 <sect3>
2579 <title>Response</title>
2580
2581 <variablelist>
2582 <varlistentry>
2583         <term>UINT32</term>
2584         <listitem><para>switch level</para></listitem>
2585 </varlistentry>
2586 <varlistentry>
2587         <term>VOID*</term>
2588         <listitem><para>pointer to SERVER_INFO_101</para></listitem>
2589 </varlistentry>
2590 <varlistentry>
2591         <term>SERVER_INFO_101</term>
2592 <listitem><para>server info (only added if server info ptr is non-zero)</para></listitem></varlistentry>
2593 </variablelist>
2594
2595 <para>return            0 - indicates success</para>
2596
2597 </sect3>
2598 </sect2>
2599 </sect1>
2600
2601 <sect1>
2602 <title>Cryptographic side of NT Domain Authentication</title>
2603
2604 <sect2>
2605 <title>Definitions</title>
2606
2607 <variablelist>
2608 <varlistentry>
2609 <term>Add(A1,A2)</term>
2610 <listitem><para>Intel byte ordered addition of corresponding 4 byte words in arrays A1 and A2</para></listitem>
2611 </varlistentry>
2612
2613 <varlistentry>
2614 <term>E(K,D)</term>
2615 <listitem><para>DES ECB encryption of 8 byte data D using 7 byte key K</para></listitem>
2616 </varlistentry>
2617
2618 <varlistentry>
2619 <term>lmowf()</term>
2620 <listitem><para>Lan man hash</para></listitem>
2621 </varlistentry>
2622
2623 <varlistentry>
2624 <term>ntowf()</term>
2625 <listitem><para>NT hash</para></listitem>
2626 </varlistentry>
2627
2628 <varlistentry>
2629 <term>PW</term>
2630 <listitem><para>md4(machine_password) == md4(lsadump $machine.acc) ==
2631 pwdump(machine$) (initially) == md4(lmowf(unicode(machine)))
2632 </para></listitem>
2633 </varlistentry>
2634
2635 <varlistentry>
2636 <term>ARC4(K,Lk,D,Ld)</term>
2637 <listitem><para>ARC4 encryption of data D of length Ld with key K of length Lk</para></listitem>
2638 </varlistentry>
2639
2640 <varlistentry>
2641 <term>v[m..n(,l)]</term>
2642 <listitem><para>subset of v from bytes m to n, optionally padded with zeroes to length l</para></listitem>
2643 </varlistentry>
2644
2645 <varlistentry>
2646 <term>Cred(K,D)</term>
2647 <listitem><para>E(K[7..7,7],E(K[0..6],D)) computes a credential</para></listitem>
2648 </varlistentry>
2649
2650 <varlistentry>
2651 <term>Time()</term>
2652 <listitem><para>4 byte current time</para></listitem>
2653 </varlistentry>
2654
2655 <varlistentry>
2656 <term>Cc,Cs</term>
2657 <listitem><para>8 byte client and server challenges Rc,Rs: 8 byte client and server credentials</para></listitem>
2658 </varlistentry>
2659
2660 </variablelist>
2661
2662 </sect2>
2663
2664 <sect2>
2665 <title>Protocol</title>
2666
2667 <programlisting>
2668 C-&gt;S ReqChal,Cc
2669 S-&gt;C Cs
2670 </programlisting>
2671
2672 <programlisting>
2673 C &amp; S compute session key Ks = E(PW[9..15],E(PW[0..6],Add(Cc,Cs)))
2674 </programlisting>
2675
2676 <programlisting>
2677 C: Rc = Cred(Ks,Cc)
2678 C-&gt;S Authenticate,Rc
2679 S: Rs = Cred(Ks,Cs), assert(Rc == Cred(Ks,Cc))
2680 S-&gt;C Rs
2681 C: assert(Rs == Cred(Ks,Cs))
2682 </programlisting>
2683
2684 <para>
2685 On joining the domain the client will optionally attempt to change its
2686 password and the domain controller may refuse to update it depending
2687 on registry settings. This will also occur weekly afterwards.
2688 </para>
2689
2690 <programlisting>
2691 C: Tc = Time(), Rc' = Cred(Ks,Rc+Tc)
2692 C-&gt;S ServerPasswordSet,Rc',Tc,arc4(Ks[0..7,16],lmowf(randompassword())
2693 C: Rc = Cred(Ks,Rc+Tc+1)
2694 S: assert(Rc' == Cred(Ks,Rc+Tc)), Ts = Time()
2695 S: Rs' = Cred(Ks,Rs+Tc+1)
2696 S-&gt;C Rs',Ts
2697 C: assert(Rs' == Cred(Ks,Rs+Tc+1))
2698 S: Rs = Rs'
2699 </programlisting>
2700
2701 <para>
2702 User: U with password P wishes to login to the domain (incidental data
2703 such as workstation and domain omitted)
2704 </para>
2705
2706 <programlisting>
2707 C: Tc = Time(), Rc' = Cred(Ks,Rc+Tc)
2708 C-&gt;S NetLogonSamLogon,Rc',Tc,U,arc4(Ks[0..7,16],16,ntowf(P),16), arc4(Ks[0..7,16],16,lmowf(P),16)
2709 S: assert(Rc' == Cred(Ks,Rc+Tc)) assert(passwords match those in SAM)
2710 S: Ts = Time()
2711 </programlisting>
2712
2713 <programlisting>
2714 S-&gt;C Cred(Ks,Cred(Ks,Rc+Tc+1)),userinfo(logon script,UID,SIDs,etc)
2715 C: assert(Rs == Cred(Ks,Cred(Rc+Tc+1))
2716 C: Rc = Cred(Ks,Rc+Tc+1)
2717 </programlisting>
2718
2719 </sect2>
2720
2721 <sect2>
2722 <title>Comments</title>
2723
2724 <para>
2725 On first joining the domain the session key could be computed by
2726 anyone listening in on the network as the machine password has a well
2727 known value. Until the machine is rebooted it will use this session
2728 key to encrypt NT and LM one way functions of passwords which are
2729 password equivalents. Any user who logs in before the machine has been
2730 rebooted a second time will have their password equivalent exposed. Of
2731 course the new machine password is exposed at this time anyway.
2732 </para>
2733
2734 <para>
2735 None of the returned user info such as logon script, profile path and
2736 SIDs *appear* to be protected by anything other than the TCP checksum.
2737 </para>
2738
2739 <para>
2740 The server time stamps appear to be ignored.
2741 </para>
2742
2743 <para>
2744 The client sends a ReturnAuthenticator in the SamLogon request which I
2745 can't find a use for.  However its time is used as the timestamp
2746 returned by the server.
2747 </para>
2748
2749 <para>
2750 The password OWFs should NOT be sent over the network reversibly
2751 encrypted. They should be sent using ARC4(Ks,md4(owf)) with the server
2752 computing the same function using the owf values in the SAM.
2753 </para>
2754
2755 </sect2>
2756 </sect1>
2757
2758 <sect1>
2759 <title>SIDs and RIDs</title>
2760
2761 <para>
2762 SIDs and RIDs are well documented elsewhere.
2763 </para>
2764
2765 <para>
2766 A SID is an NT Security ID (see DOM_SID structure).  They are of the form:
2767 </para>
2768
2769 <simplelist>
2770 <member>revision-NN-SubAuth1-SubAuth2-SubAuth3... </member>
2771 <member>revision-0xNNNNNNNNNNNN-SubAuth1-SubAuth2-SubAuth3...</member>
2772 </simplelist>
2773
2774 <para>
2775 currently, the SID revision is 1.
2776 The Sub-Authorities are known as Relative IDs (RIDs).
2777 </para>
2778
2779 <sect2>
2780 <title>Well-known SIDs</title>
2781
2782 <sect3>
2783 <title>Universal well-known SIDs</title>
2784
2785 <variablelist>
2786 <varlistentry>
2787         <term>Null SID</term>
2788         <listitem><para>S-1-0-0</para></listitem>
2789 </varlistentry>
2790 <varlistentry>
2791         <term>World</term>
2792         <listitem><para>S-1-1-0</para></listitem>
2793 </varlistentry>
2794 <varlistentry>
2795         <term>Local</term>
2796         <listitem><para>S-1-2-0</para></listitem>
2797 </varlistentry>
2798 <varlistentry>
2799         <term>Creator Owner ID</term>
2800         <listitem><para>S-1-3-0</para></listitem>
2801 </varlistentry>
2802 <varlistentry>
2803         <term>Creator Group ID</term>
2804         <listitem><para>S-1-3-1</para></listitem>
2805 </varlistentry>
2806 <varlistentry>
2807         <term>Creator Owner Server ID</term>
2808         <listitem><para>S-1-3-2</para></listitem>
2809 </varlistentry>
2810 <varlistentry>
2811         <term>Creator Group Server ID</term>
2812         <listitem><para>S-1-3-3</para></listitem>
2813 </varlistentry>
2814 <varlistentry>
2815         <term>(Non-unique IDs)</term>
2816         <listitem><para>S-1-4</para></listitem>
2817 </varlistentry>
2818 </variablelist>
2819
2820 </sect3>
2821
2822 <sect3>
2823 <title>NT well-known SIDs</title>
2824
2825 <variablelist>
2826 <varlistentry>
2827         <term>NT Authority</term>
2828         <listitem><para>S-1-5</para></listitem>
2829 </varlistentry>
2830 <varlistentry>
2831         <term>Dialup</term>
2832         <listitem><para>S-1-5-1</para></listitem>
2833 </varlistentry>
2834 <varlistentry>
2835         <term>Network</term>
2836         <listitem><para>S-1-5-2</para></listitem>
2837 </varlistentry>
2838 <varlistentry>
2839         <term>Batch</term>
2840         <listitem><para>S-1-5-3</para></listitem>
2841 </varlistentry>
2842 <varlistentry>
2843         <term>Interactive</term>
2844         <listitem><para>S-1-5-4</para></listitem>
2845 </varlistentry>
2846 <varlistentry>
2847         <term>Service</term>
2848 <listitem><para>S-1-5-6</para></listitem></varlistentry>
2849 <varlistentry>
2850         <term>AnonymousLogon(aka null logon session)</term>
2851         <listitem><para>S-1-5-7</para></listitem>
2852 </varlistentry>
2853 <varlistentry>
2854         <term>Proxy</term>
2855 <listitem><para>S-1-5-8</para></listitem></varlistentry>
2856 <varlistentry>
2857         <term>ServerLogon(aka domain controller account)</term>
2858         <listitem><para>S-1-5-8</para></listitem>
2859 </varlistentry>
2860 <varlistentry>
2861         <term>(Logon IDs)</term>
2862         <listitem><para>S-1-5-5-X-Y</para></listitem>
2863 </varlistentry>
2864 <varlistentry>
2865         <term>(NT non-unique IDs)</term>
2866         <listitem><para>S-1-5-0x15-...</para></listitem>
2867 </varlistentry>
2868 <varlistentry>
2869         <term>(Built-in domain)</term>
2870         <listitem><para>s-1-5-0x20</para></listitem>
2871 </varlistentry>
2872 </variablelist>
2873
2874 </sect3>
2875 </sect2>
2876
2877 <sect2>
2878 <title>Well-known RIDS</title>
2879
2880 <para>
2881 A RID is a sub-authority value, as part of either a SID, or in the case
2882 of Group RIDs, part of the DOM_GID structure, in the USER_INFO_1
2883 structure, in the LSA SAM Logon response.
2884 </para>
2885
2886 <sect3>
2887 <title>Well-known RID users</title>
2888
2889 <segmentedlist>
2890 <segtitle>Groupname</segtitle>
2891 <segtitle>????</segtitle>
2892 <segtitle>RID</segtitle>
2893 <seglistitem><seg>DOMAIN_USER_RID_ADMIN</seg><seg>0x0000</seg><seg>01F4</seg></seglistitem>
2894 <seglistitem><seg>DOMAIN_USER_RID_GUEST</seg><seg>0x0000</seg><seg>01F5</seg></seglistitem>
2895 </segmentedlist>
2896
2897 </sect3>
2898
2899 <sect3>
2900 <title>Well-known RID groups</title>
2901
2902 <segmentedlist>
2903 <segtitle>Groupname</segtitle>
2904 <segtitle>????</segtitle>
2905 <segtitle>RID</segtitle>
2906 <seglistitem><seg>      DOMAIN_GROUP_RID_ADMINS</seg><seg>0x0000</seg><seg>0200</seg></seglistitem>
2907 <seglistitem><seg>      DOMAIN_GROUP_RID_USERS</seg><seg>0x0000</seg><seg>0201</seg></seglistitem>
2908 <seglistitem><seg>      DOMAIN_GROUP_RID_GUESTS</seg><seg>0x0000</seg><seg>0202</seg></seglistitem>
2909 </segmentedlist>
2910
2911 </sect3>
2912
2913 <sect3>
2914 <title>Well-known RID aliases</title>
2915
2916 <segmentedlist>
2917 <segtitle>Groupname</segtitle>
2918 <segtitle>????</segtitle>
2919 <segtitle>RID</segtitle>
2920 <seglistitem><seg>      DOMAIN_ALIAS_RID_ADMINS</seg><seg>0x0000</seg><seg>0220</seg></seglistitem>
2921 <seglistitem><seg>      DOMAIN_ALIAS_RID_USERS</seg><seg>0x0000</seg><seg>0221</seg></seglistitem>
2922 <seglistitem><seg>      DOMAIN_ALIAS_RID_GUESTS</seg><seg>0x0000</seg><seg>0222</seg></seglistitem>
2923 <seglistitem><seg>      DOMAIN_ALIAS_RID_POWER_USERS</seg><seg>0x0000</seg><seg>0223</seg></seglistitem>
2924 <seglistitem><seg>      DOMAIN_ALIAS_RID_ACCOUNT_OPS</seg><seg>0x0000</seg><seg>0224</seg></seglistitem>
2925 <seglistitem><seg>      DOMAIN_ALIAS_RID_SYSTEM_OPS</seg><seg>0x0000</seg><seg>0225</seg></seglistitem>
2926 <seglistitem><seg>      DOMAIN_ALIAS_RID_PRINT_OPS</seg><seg>0x0000</seg><seg>0226</seg></seglistitem>
2927 <seglistitem><seg>      DOMAIN_ALIAS_RID_BACKUP_OPS</seg><seg>0x0000</seg><seg>0227</seg></seglistitem>
2928 <seglistitem><seg>      DOMAIN_ALIAS_RID_REPLICATOR</seg><seg>0x0000</seg><seg>0228</seg></seglistitem>
2929 </segmentedlist>
2930
2931 </sect3>
2932 </sect2>
2933 </sect1>
2934 </chapter>