dlls/shell32/shpolicy.c

   1 /*
   2  * shpolicy.c - Data for shell/system policies.
   3  *
   4  * Copyright 1999 Ian Schmidt <ischmidt@cfl.rr.com>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  *
  20  * NOTES:
  21  *
  22  * Some of these policies can be tweaked via the System Policy
  23  * Editor which came with the Win95 Migration Guide, although
  24  * there doesn't appear to be an updated Win98 version that
  25  * would handle the many new policies introduced since then.
  26  * You could easily write one with the information in
  27  * this file...
  28  *
  29  * Up to date as of SHELL32 v5.00 (W2K)
  30  */
  31
  32 #include <stdarg.h>
  33 #include <stdlib.h>
  34 #include <string.h>
  35
  36 #include "windef.h"
  37 #include "winbase.h"
  38 #include "winerror.h"
  39 #include "winreg.h"
  40
  41 #include "shell32_main.h"
  42 #include "shlobj.h"
  43
  44 #include "wine/debug.h"
  45
  46 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  47
  48 #define SHELL_NO_POLICY 0xffffffff
  49
  50 typedef struct tagPOLICYDAT
  51 {
  52   DWORD policy;          /* policy value passed to SHRestricted */
  53   LPCSTR appstr;         /* application str such as "Explorer" */
  54   LPCSTR keystr;         /* name of the actual registry key / policy */
  55   DWORD cache;           /* cached value or 0xffffffff for invalid */
  56 } POLICYDATA, *LPPOLICYDATA;
  57
  58 /* application strings */
  59
  60 static const char strExplorer[] = {"Explorer"};
  61 static const char strActiveDesk[] = {"ActiveDesktop"};
  62 static const char strWinOldApp[] = {"WinOldApp"};
  63 static const char strAddRemoveProgs[] = {"AddRemoveProgs"};
  64
  65 /* key strings */
  66
  67 static const char strNoFileURL[] = {"NoFileUrl"};
  68 static const char strNoFolderOptions[] = {"NoFolderOptions"};
  69 static const char strNoChangeStartMenu[] = {"NoChangeStartMenu"};
  70 static const char strNoWindowsUpdate[] = {"NoWindowsUpdate"};
  71 static const char strNoSetActiveDesktop[] = {"NoSetActiveDesktop"};
  72 static const char strNoForgetSoftwareUpdate[] = {"NoForgetSoftwareUpdate"};
  73 static const char strNoMSAppLogo[] = {"NoMSAppLogo5ChannelNotify"};
  74 static const char strForceCopyACLW[] = {"ForceCopyACLWithFile"};
  75 static const char strNoResolveTrk[] = {"NoResolveTrack"};
  76 static const char strNoResolveSearch[] = {"NoResolveSearch"};
  77 static const char strNoEditComponent[] = {"NoEditingComponents"};
  78 static const char strNoMovingBand[] = {"NoMovingBands"};
  79 static const char strNoCloseDragDrop[] = {"NoCloseDragDropBands"};
  80 static const char strNoCloseComponent[] = {"NoClosingComponents"};
  81 static const char strNoDelComponent[] = {"NoDeletingComponents"};
  82 static const char strNoAddComponent[] = {"NoAddingComponents"};
  83 static const char strNoComponent[] = {"NoComponents"};
  84 static const char strNoChangeWallpaper[] = {"NoChangingWallpaper"};
  85 static const char strNoHTMLWallpaper[] = {"NoHTMLWallpaper"};
  86 static const char strNoCustomWebView[] = {"NoCustomizeWebView"};
  87 static const char strClassicShell[] = {"ClassicShell"};
  88 static const char strClearRecentDocs[] = {"ClearRecentDocsOnExit"};
  89 static const char strNoFavoritesMenu[] = {"NoFavoritesMenu"};
  90 static const char strNoActiveDesktopChanges[] = {"NoActiveDesktopChanges"};
  91 static const char strNoActiveDesktop[] = {"NoActiveDesktop"};
  92 static const char strNoRecentDocMenu[] = {"NoRecentDocsMenu"};
  93 static const char strNoRecentDocHistory[] = {"NoRecentDocsHistory"};
  94 static const char strNoInetIcon[] = {"NoInternetIcon"};
  95 static const char strNoSettingsWizard[] = {"NoSettingsWizards"};
  96 static const char strNoLogoff[] = {"NoLogoff"};
  97 static const char strNoNetConDis[] = {"NoNetConnectDisconnect"};
  98 static const char strNoViewContextMenu[] = {"NoViewContextMenu"};
  99 static const char strNoTrayContextMenu[] = {"NoTrayContextMenu"};
 100 static const char strNoWebMenu[] = {"NoWebMenu"};
 101 static const char strLnkResolveIgnoreLnkInfo[] = {"LinkResolveIgnoreLinkInfo"};
 102 static const char strNoCommonGroups[] = {"NoCommonGroups"};
 103 static const char strEnforceShlExtSecurity[] = {"EnforceShellExtensionSecurity"};
 104 static const char strNoRealMode[] = {"NoRealMode"};
 105 static const char strMyDocsOnNet[] = {"MyDocsOnNet"};
 106 static const char strNoStartMenuSubfolder[] = {"NoStartMenuSubFolders"};
 107 static const char strNoAddPrinters[] = {"NoAddPrinter"};
 108 static const char strNoDeletePrinters[] = {"NoDeletePrinter"};
 109 static const char strNoPrintTab[] = {"NoPrinterTabs"};
 110 static const char strRestrictRun[] = {"RestrictRun"};
 111 static const char strNoStartBanner[] = {"NoStartBanner"};
 112 static const char strNoNetworkNeighborhood[] = {"NoNetHood"};
 113 static const char strNoDriveTypeAtRun[] = {"NoDriveTypeAutoRun"};
 114 static const char strNoDrivesAutoRun[] = {"NoDriveAutoRun"};
 115 static const char strSeparateProcess[] = {"SeparateProcess"};
 116 static const char strNoDrives[] = {"NoDrives"};
 117 static const char strNoFind[] = {"NoFind"};
 118 static const char strNoDesktop[] = {"NoDesktop"};
 119 static const char strNoSetTaskBar[] = {"NoSetTaskbar"};
 120 static const char strNoSetFld[] = {"NoSetFolders"};
 121 static const char strNoFileMenu[] = {"NoFileMenu"};
 122 static const char strNoSaveSetting[] = {"NoSaveSettings"};
 123 static const char strNoClose[] = {"NoClose"};
 124 static const char strNoRun[] = {"NoRun"};
 125
 126 /* policy data array */
 127 static POLICYDATA sh32_policy_table[] =
 128 {
 129   {
 130     REST_NORUN,
 131     strExplorer,
 132     strNoRun,
 133     SHELL_NO_POLICY
 134   },
 135   {
 136     REST_NOCLOSE,
 137     strExplorer,
 138     strNoClose,
 139     SHELL_NO_POLICY
 140   },
 141   {
 142     REST_NOSAVESET,
 143     strExplorer,
 144     strNoSaveSetting,
 145     SHELL_NO_POLICY
 146   },
 147   {
 148     REST_NOFILEMENU,
 149     strExplorer,
 150     strNoFileMenu,
 151     SHELL_NO_POLICY
 152   },
 153   {
 154     REST_NOSETFOLDERS,
 155     strExplorer,
 156     strNoSetFld,
 157     SHELL_NO_POLICY
 158   },
 159   {
 160     REST_NOSETTASKBAR,
 161     strExplorer,
 162     strNoSetTaskBar,
 163     SHELL_NO_POLICY
 164   },
 165   {
 166     REST_NODESKTOP,
 167     strExplorer,
 168     strNoDesktop,
 169     SHELL_NO_POLICY
 170   },
 171   {
 172     REST_NOFIND,
 173     strExplorer,
 174     strNoFind,
 175     SHELL_NO_POLICY
 176   },
 177   {
 178     REST_NODRIVES,
 179     strExplorer,
 180     strNoDrives,
 181     SHELL_NO_POLICY
 182   },
 183   {
 184     REST_NODRIVEAUTORUN,
 185     strExplorer,
 186     strNoDrivesAutoRun,
 187     SHELL_NO_POLICY
 188   },
 189   {
 190     REST_NODRIVETYPEAUTORUN,
 191     strExplorer,
 192     strNoDriveTypeAtRun,
 193     SHELL_NO_POLICY
 194   },
 195   {
 196     REST_NONETHOOD,
 197     strExplorer,
 198     strNoNetworkNeighborhood,
 199     SHELL_NO_POLICY
 200   },
 201   {
 202     REST_STARTBANNER,
 203     strExplorer,
 204     strNoStartBanner,
 205     SHELL_NO_POLICY
 206   },
 207   {
 208     REST_RESTRICTRUN,
 209     strExplorer,
 210     strRestrictRun,
 211     SHELL_NO_POLICY
 212   },
 213   {
 214     REST_NOPRINTERTABS,
 215     strExplorer,
 216     strNoPrintTab,
 217     SHELL_NO_POLICY
 218   },
 219   {
 220     REST_NOPRINTERDELETE,
 221     strExplorer,
 222     strNoDeletePrinters,
 223     SHELL_NO_POLICY
 224   },
 225   {
 226     REST_NOPRINTERADD,
 227     strExplorer,
 228     strNoAddPrinters,
 229     SHELL_NO_POLICY
 230   },
 231   {
 232     REST_NOSTARTMENUSUBFOLDERS,
 233     strExplorer,
 234     strNoStartMenuSubfolder,
 235     SHELL_NO_POLICY
 236   },
 237   {
 238     REST_MYDOCSONNET,
 239     strExplorer,
 240     strMyDocsOnNet,
 241     SHELL_NO_POLICY
 242   },
 243   {
 244     REST_NOEXITTODOS,
 245     strWinOldApp,
 246     strNoRealMode,
 247     SHELL_NO_POLICY
 248   },
 249   {
 250     REST_ENFORCESHELLEXTSECURITY,
 251     strExplorer,
 252     strEnforceShlExtSecurity,
 253     SHELL_NO_POLICY
 254   },
 255   {
 256     REST_LINKRESOLVEIGNORELINKINFO,
 257     strExplorer,
 258     strLnkResolveIgnoreLnkInfo,
 259     SHELL_NO_POLICY
 260   },
 261   {
 262     REST_NOCOMMONGROUPS,
 263     strExplorer,
 264     strNoCommonGroups,
 265     SHELL_NO_POLICY
 266   },
 267   {
 268     REST_SEPARATEDESKTOPPROCESS,
 269     strExplorer,
 270     strSeparateProcess,
 271     SHELL_NO_POLICY
 272   },
 273   {
 274     REST_NOWEB,
 275     strExplorer,
 276     strNoWebMenu,
 277     SHELL_NO_POLICY
 278   },
 279   {
 280     REST_NOTRAYCONTEXTMENU,
 281     strExplorer,
 282     strNoTrayContextMenu,
 283     SHELL_NO_POLICY
 284   },
 285   {
 286     REST_NOVIEWCONTEXTMENU,
 287     strExplorer,
 288     strNoViewContextMenu,
 289     SHELL_NO_POLICY
 290   },
 291   {
 292     REST_NONETCONNECTDISCONNECT,
 293     strExplorer,
 294     strNoNetConDis,
 295     SHELL_NO_POLICY
 296   },
 297   {
 298     REST_STARTMENULOGOFF,
 299     strExplorer,
 300     strNoLogoff,
 301     SHELL_NO_POLICY
 302   },
 303   {
 304     REST_NOSETTINGSASSIST,
 305     strExplorer,
 306     strNoSettingsWizard,
 307     SHELL_NO_POLICY
 308   },
 309   {
 310     REST_NOINTERNETICON,
 311     strExplorer,
 312     strNoInetIcon,
 313     SHELL_NO_POLICY
 314   },
 315   {
 316     REST_NORECENTDOCSHISTORY,
 317     strExplorer,
 318     strNoRecentDocHistory,
 319     SHELL_NO_POLICY
 320   },
 321   {
 322     REST_NORECENTDOCSMENU,
 323     strExplorer,
 324     strNoRecentDocMenu,
 325     SHELL_NO_POLICY
 326   },
 327   {
 328     REST_NOACTIVEDESKTOP,
 329     strExplorer,
 330     strNoActiveDesktop,
 331     SHELL_NO_POLICY
 332   },
 333   {
 334     REST_NOACTIVEDESKTOPCHANGES,
 335     strExplorer,
 336     strNoActiveDesktopChanges,
 337     SHELL_NO_POLICY
 338   },
 339   {
 340     REST_NOFAVORITESMENU,
 341     strExplorer,
 342     strNoFavoritesMenu,
 343     SHELL_NO_POLICY
 344   },
 345   {
 346     REST_CLEARRECENTDOCSONEXIT,
 347     strExplorer,
 348     strClearRecentDocs,
 349     SHELL_NO_POLICY
 350   },
 351   {
 352     REST_CLASSICSHELL,
 353     strExplorer,
 354     strClassicShell,
 355     SHELL_NO_POLICY
 356   },
 357   {
 358     REST_NOCUSTOMIZEWEBVIEW,
 359     strExplorer,
 360     strNoCustomWebView,
 361     SHELL_NO_POLICY
 362   },
 363   {
 364     REST_NOHTMLWALLPAPER,
 365     strActiveDesk,
 366     strNoHTMLWallpaper,
 367     SHELL_NO_POLICY
 368   },
 369   {
 370     REST_NOCHANGINGWALLPAPER,
 371     strActiveDesk,
 372     strNoChangeWallpaper,
 373     SHELL_NO_POLICY
 374   },
 375   {
 376     REST_NODESKCOMP,
 377     strActiveDesk,
 378     strNoComponent,
 379     SHELL_NO_POLICY
 380   },
 381   {
 382     REST_NOADDDESKCOMP,
 383     strActiveDesk,
 384     strNoAddComponent,
 385     SHELL_NO_POLICY
 386   },
 387   {
 388     REST_NODELDESKCOMP,
 389     strActiveDesk,
 390     strNoDelComponent,
 391     SHELL_NO_POLICY
 392   },
 393   {
 394     REST_NOCLOSEDESKCOMP,
 395     strActiveDesk,
 396     strNoCloseComponent,
 397     SHELL_NO_POLICY
 398   },
 399   {
 400     REST_NOCLOSE_DRAGDROPBAND,
 401     strActiveDesk,
 402     strNoCloseDragDrop,
 403     SHELL_NO_POLICY
 404   },
 405   {
 406     REST_NOMOVINGBAND,
 407     strActiveDesk,
 408     strNoMovingBand,
 409     SHELL_NO_POLICY
 410   },
 411   {
 412     REST_NOEDITDESKCOMP,
 413     strActiveDesk,
 414     strNoEditComponent,
 415     SHELL_NO_POLICY
 416   },
 417   {
 418     REST_NORESOLVESEARCH,
 419     strExplorer,
 420     strNoResolveSearch,
 421     SHELL_NO_POLICY
 422   },
 423   {
 424     REST_NORESOLVETRACK,
 425     strExplorer,
 426     strNoResolveTrk,
 427     SHELL_NO_POLICY
 428   },
 429   {
 430     REST_FORCECOPYACLWITHFILE,
 431     strExplorer,
 432     strForceCopyACLW,
 433     SHELL_NO_POLICY
 434   },
 435   {
 436     REST_NOLOGO3CHANNELNOTIFY,
 437     strExplorer,
 438     strNoMSAppLogo,
 439     SHELL_NO_POLICY
 440   },
 441   {
 442     REST_NOFORGETSOFTWAREUPDATE,
 443     strExplorer,
 444     strNoForgetSoftwareUpdate,
 445     SHELL_NO_POLICY
 446   },
 447   {
 448     REST_NOSETACTIVEDESKTOP,
 449     strExplorer,
 450     strNoSetActiveDesktop,
 451     SHELL_NO_POLICY
 452   },
 453   {
 454     REST_NOUPDATEWINDOWS,
 455     strExplorer,
 456     strNoWindowsUpdate,
 457     SHELL_NO_POLICY
 458   },
 459   {
 460     REST_NOCHANGESTARMENU,
 461     strExplorer,
 462     strNoChangeStartMenu,
 463     SHELL_NO_POLICY
 464   },
 465   {
 466     REST_NOFOLDEROPTIONS,
 467     strExplorer,
 468     strNoFolderOptions,
 469     SHELL_NO_POLICY
 470   },
 471   {
 472     REST_HASFINDCOMPUTERS,
 473     strExplorer,
 474     "FindComputers",
 475     SHELL_NO_POLICY
 476   },
 477   {
 478     REST_INTELLIMENUS,
 479     strExplorer,
 480     "IntelliMenus",
 481     SHELL_NO_POLICY
 482   },
 483   {
 484     REST_RUNDLGMEMCHECKBOX,
 485     strExplorer,
 486     "MemCheckBoxInRunDlg",
 487     SHELL_NO_POLICY
 488   },
 489   {
 490     REST_ARP_ShowPostSetup,
 491     strAddRemoveProgs,
 492     "ShowPostSetup",
 493     SHELL_NO_POLICY
 494   },
 495   {
 496     REST_NOCSC,
 497     strExplorer,
 498     "NoSyncAll",
 499     SHELL_NO_POLICY
 500   },
 501   {
 502     REST_NOCONTROLPANEL,
 503     strExplorer,
 504     "NoControlPanel",
 505     SHELL_NO_POLICY
 506   },
 507   {
 508     REST_ENUMWORKGROUP,
 509     strExplorer,
 510     "EnumWorkgroup",
 511     SHELL_NO_POLICY
 512   },
 513   {
 514     REST_ARP_NOARP,
 515     strAddRemoveProgs,
 516     "NoAddRemovePrograms",
 517     SHELL_NO_POLICY
 518   },
 519   {
 520     REST_ARP_NOREMOVEPAGE,
 521     strAddRemoveProgs,
 522     "NoRemovePage",
 523     SHELL_NO_POLICY
 524   },
 525   {
 526     REST_ARP_NOADDPAGE,
 527     strAddRemoveProgs,
 528     "NoAddPage",
 529     SHELL_NO_POLICY
 530   },
 531   {
 532     REST_ARP_NOWINSETUPPAGE,
 533     strAddRemoveProgs,
 534     "NoWindowsSetupPage",
 535     SHELL_NO_POLICY
 536   },
 537   {
 538     REST_GREYMSIADS,
 539     strExplorer,
 540     "",
 541     SHELL_NO_POLICY
 542   },
 543   {
 544     REST_NOCHANGEMAPPEDDRIVELABEL,
 545     strExplorer,
 546     "NoChangeMappedDriveLabel",
 547     SHELL_NO_POLICY
 548   },
 549   {
 550     REST_NOCHANGEMAPPEDDRIVECOMMENT,
 551     strExplorer,
 552     "NoChangeMappedDriveComment",
 553     SHELL_NO_POLICY
 554   },
 555   {
 556     REST_MaxRecentDocs,
 557     strExplorer,
 558     "MaxRecentDocs",
 559     SHELL_NO_POLICY
 560   },
 561   {
 562     REST_NONETWORKCONNECTIONS,
 563     strExplorer,
 564     "NoNetworkConnections",
 565     SHELL_NO_POLICY
 566   },
 567   {
 568     REST_FORCESTARTMENULOGOFF,
 569     strExplorer,
 570     "ForceStartMenuLogoff",
 571     SHELL_NO_POLICY
 572   },
 573   {
 574     REST_NOWEBVIEW,
 575     strExplorer,
 576      "NoWebView",
 577     SHELL_NO_POLICY
 578   },
 579   {
 580     REST_NOCUSTOMIZETHISFOLDER,
 581     strExplorer,
 582     "NoCustomizeThisFolder",
 583     SHELL_NO_POLICY
 584   },
 585   {
 586     REST_NOENCRYPTION,
 587     strExplorer,
 588     "NoEncryption",
 589     SHELL_NO_POLICY
 590   },
 591   {
 592     REST_ALLOWFRENCHENCRYPTION,
 593     strExplorer,
 594     "AllowFrenchEncryption",
 595     SHELL_NO_POLICY
 596   },
 597   {
 598     REST_DONTSHOWSUPERHIDDEN,
 599     strExplorer,
 600     "DontShowSuperHidden",
 601     SHELL_NO_POLICY
 602   },
 603   {
 604     REST_NOSHELLSEARCHBUTTON,
 605     strExplorer,
 606     "NoShellSearchButton",
 607     SHELL_NO_POLICY
 608   },
 609   {
 610     REST_NOHARDWARETAB,
 611     strExplorer,
 612     "NoHardwareTab",
 613     SHELL_NO_POLICY
 614   },
 615   {
 616     REST_NORUNASINSTALLPROMPT,
 617     strExplorer,
 618     "NoRunasInstallPrompt",
 619     SHELL_NO_POLICY
 620   },
 621   {
 622     REST_PROMPTRUNASINSTALLNETPATH,
 623     strExplorer,
 624     "PromptRunasInstallNetPath",
 625     SHELL_NO_POLICY
 626   },
 627   {
 628     REST_NOMANAGEMYCOMPUTERVERB,
 629     strExplorer,
 630     "NoManageMyComputerVerb",
 631     SHELL_NO_POLICY
 632   },
 633   {
 634     REST_NORECENTDOCSNETHOOD,
 635     strExplorer,
 636     "NoRecentDocsNetHood",
 637     SHELL_NO_POLICY
 638   },
 639   {
 640     REST_DISALLOWRUN,
 641     strExplorer,
 642     "DisallowRun",
 643     SHELL_NO_POLICY
 644   },
 645   {
 646     REST_NOWELCOMESCREEN,
 647     strExplorer,
 648     "NoWelcomeScreen",
 649     SHELL_NO_POLICY
 650   },
 651   {
 652     REST_RESTRICTCPL,
 653     strExplorer,
 654     "RestrictCpl",
 655     SHELL_NO_POLICY
 656   },
 657   {
 658     REST_DISALLOWCPL,
 659     strExplorer,
 660     "DisallowCpl",
 661     SHELL_NO_POLICY
 662   },
 663   {
 664     REST_NOSMBALLOONTIP,
 665     strExplorer,
 666     "NoSMBalloonTip",
 667     SHELL_NO_POLICY
 668   },
 669   {
 670     REST_NOSMHELP,
 671     strExplorer,
 672     "NoSMHelp",
 673     SHELL_NO_POLICY
 674   },
 675   {
 676     REST_NOWINKEYS,
 677     strExplorer,
 678     "NoWinKeys",
 679     SHELL_NO_POLICY
 680   },
 681   {
 682     REST_NOENCRYPTONMOVE,
 683     strExplorer,
 684     "NoEncryptOnMove",
 685     SHELL_NO_POLICY
 686   },
 687   {
 688     REST_NOLOCALMACHINERUN,
 689     strExplorer,
 690     "DisableLocalMachineRun",
 691     SHELL_NO_POLICY
 692   },
 693   {
 694     REST_NOCURRENTUSERRUN,
 695     strExplorer,
 696     "DisableCurrentUserRun",
 697     SHELL_NO_POLICY
 698   },
 699   {
 700     REST_NOLOCALMACHINERUNONCE,
 701     strExplorer,
 702     "DisableLocalMachineRunOnce",
 703     SHELL_NO_POLICY
 704   },
 705   {
 706     REST_NOCURRENTUSERRUNONCE,
 707     strExplorer,
 708     "DisableCurrentUserRunOnce",
 709     SHELL_NO_POLICY
 710   },
 711   {
 712     REST_FORCEACTIVEDESKTOPON,
 713     strExplorer,
 714     "ForceActiveDesktopOn",
 715     SHELL_NO_POLICY
 716   },
 717   {
 718     REST_NOCOMPUTERSNEARME,
 719     strExplorer,
 720     "NoComputersNearMe",
 721     SHELL_NO_POLICY
 722   },
 723   {
 724     REST_NOVIEWONDRIVE,
 725     strExplorer,
 726     "NoViewOnDrive",
 727     SHELL_NO_POLICY
 728   },
 729   {
 730     REST_NONETCRAWL,
 731     strExplorer,
 732     "NoNetCrawl",
 733     SHELL_NO_POLICY
 734   },
 735   {
 736     REST_NOSHAREDDOCUMENTS,
 737     strExplorer,
 738     "NoSharedDocs",
 739     SHELL_NO_POLICY
 740   },
 741   {
 742     REST_NOSMMYDOCS,
 743     strExplorer,
 744     "NoSMMyDocs",
 745     SHELL_NO_POLICY
 746   },
 747 /* 0x4000050 - 0x4000060 */
 748   {
 749     REST_NONLEGACYSHELLMODE,
 750     strExplorer,
 751     "NoneLegacyShellMode",
 752     SHELL_NO_POLICY
 753   },
 754   {
 755     REST_STARTRUNNOHOMEPATH,
 756     strExplorer,
 757     "StartRunNoHOMEPATH",
 758     SHELL_NO_POLICY
 759   },
 760 /* 0x4000061 - 0x4000086 */
 761   {
 762     REST_NODISCONNECT,
 763     strExplorer,
 764     "NoDisconnect",
 765     SHELL_NO_POLICY
 766   },
 767   {
 768     REST_NOSECURITY,
 769     strExplorer,
 770     "NoNTSecurity",
 771     SHELL_NO_POLICY
 772   },
 773   {
 774     REST_NOFILEASSOCIATE,
 775     strExplorer,
 776     "NoFileAssociate",
 777     SHELL_NO_POLICY
 778   },
 779   {
 780     0x50000024,
 781     strExplorer,
 782     strNoFileURL,
 783     SHELL_NO_POLICY
 784   },
 785   {
 786     0,
 787     0,
 788     0,
 789     SHELL_NO_POLICY
 790   }
 791 };
 792
 793 /*************************************************************************
 794  * SHRestricted                          [SHELL32.100]
 795  *
 796  * Get the value associated with a policy Id.
 797  *
 798  * PARAMS
 799  *     pol [I] Policy Id
 800  *
 801  * RETURNS
 802  *     The queried value for the policy.
 803  *
 804  * NOTES
 805  *     Exported by ordinal.
 806  *     This function caches the retrieved values to prevent unnecessary registry access,
 807  *     if SHInitRestricted() was previously called.
 808  *
 809  * REFERENCES
 810  *     a: MS System Policy Editor.
 811  *     b: 98Lite 2.0 (which uses many of these policy keys) http://www.98lite.net/
 812  *     c: 'The Windows 95 Registry', by John Woram, 1996 MIS: Press
 813  */
 814 DWORD WINAPI SHRestricted (RESTRICTIONS policy)
 815 {
 816         char regstr[256];
 817         HKEY    xhkey;
 818         DWORD   retval, datsize = 4;
 819         LPPOLICYDATA p;
 820
 821         TRACE("(%08x)\n", policy);
 822
 823         /* scan to see if we know this policy ID */
 824         for (p = sh32_policy_table; p->policy; p++)
 825         {
 826           if (policy == p->policy)
 827           {
 828             break;
 829           }
 830         }
 831
 832         if (p->policy == 0)
 833         {
 834             /* we don't know this policy, return 0 */
 835             TRACE("unknown policy: (%08x)\n", policy);
 836                 return 0;
 837         }
 838
 839         /* we have a known policy */
 840
 841         /* first check if this policy has been cached, return it if so */
 842         if (p->cache != SHELL_NO_POLICY)
 843         {
 844             return p->cache;
 845         }
 846
 847         lstrcpyA(regstr, "Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\");
 848         lstrcatA(regstr, p->appstr);
 849
 850         /* return 0 and don't set the cache if any registry errors occur */
 851         retval = 0;
 852         if (RegOpenKeyA(HKEY_CURRENT_USER, regstr, &xhkey) == ERROR_SUCCESS)
 853         {
 854           if (RegQueryValueExA(xhkey, p->keystr, NULL, NULL, (LPBYTE)&retval, &datsize) == ERROR_SUCCESS)
 855           {
 856             p->cache = retval;
 857           }
 858           RegCloseKey(xhkey);
 859         }
 860         return retval;
 861 }
 862
 863 /*************************************************************************
 864  * SHInitRestricted          [SHELL32.244]
 865  *
 866  * Initialise the policy cache to speed up calls to SHRestricted().
 867  *
 868  * PARAMS
 869  *  unused    [I] Reserved.
 870  *  inpRegKey [I] Registry key to scan.
 871  *
 872  * RETURNS
 873  *  Success: -1. The policy cache is initialised.
 874  *  Failure: 0, if inpRegKey is any value other than NULL, "Policy", or
 875  *           "Software\Microsoft\Windows\CurrentVersion\Policies".
 876  *
 877  * NOTES
 878  *  Exported by ordinal. Introduced in Win98.
 879  */
 880 BOOL WINAPI SHInitRestricted(LPCVOID unused, LPCVOID inpRegKey)
 881 {
 882         TRACE("(%p, %p)\n", unused, inpRegKey);
 883
 884         /* first check - if input is non-NULL and points to the secret
 885            key string, then pass. Otherwise return 0.
 886          */
 887         if (inpRegKey != NULL)
 888         {
 889           if (SHELL_OsIsUnicode())
 890           {
 891             if (lstrcmpiW(inpRegKey, L"Software\\Microsoft\\Windows\\CurrentVersion\\Policies") &&
 892                 lstrcmpiW(inpRegKey, L"Policy"))
 893               /* doesn't match, fail */
 894               return FALSE;
 895           }
 896           else
 897           {
 898             if (lstrcmpiA(inpRegKey, "Software\\Microsoft\\Windows\\CurrentVersion\\Policies") &&
 899                 lstrcmpiA(inpRegKey, "Policy"))
 900               /* doesn't match, fail */
 901               return FALSE;
 902           }
 903         }
 904
 905         return TRUE;
 906 }