source: trunk/src/shell32/shpolicy.c@ 6331

Last change on this file since 6331 was 5618, checked in by sandervl, 25 years ago

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1/*
2 * shpolicy.c - Data for shell/system policies.
3 *
4 * Created 1999 by Ian Schmidt <ischmidt@cfl.rr.com>
5 *
6 * Some of these policies can be tweaked via the System Policy
7 * Editor which came with the Win95 Migration Guide, although
8 * there doesn't appear to be an updated Win98 version that
9 * would handle the many new policies introduced since then.
10 * You could easily write one with the information in
11 * this file...
12 *
13 * Up to date as of SHELL32 v4.72 (Win98, Win95 with MSIE 5)
14 */
15
16#include <stdlib.h>
17#include <string.h>
18
19#include "windef.h"
20#include "wingdi.h"
21#include "winerror.h"
22#include "winreg.h"
23#include "debugtools.h"
24#include "wine/winuser16.h"
25
26DEFAULT_DEBUG_CHANNEL(shell);
27
28#define SHELL_MAX_POLICIES 57
29
30#define SHELL_NO_POLICY 0xffffffff
31
32typedef struct tagPOLICYDAT
33{
34 DWORD polflags; /* flags value passed to SHRestricted */
35 LPSTR appstr; /* application str such as "Explorer" */
36 LPSTR keystr; /* name of the actual registry key / policy */
37 DWORD cache; /* cached value or 0xffffffff for invalid */
38} POLICYDATA, *LPPOLICYDATA;
39
40//extern POLICYDATA sh32_policy_table[SHELL_MAX_POLICIES];
41
42/* application strings */
43
44static char strExplorer[] = {"Explorer"};
45static char strActiveDesk[] = {"ActiveDesktop"};
46static char strWinOldApp[] = {"WinOldApp"};
47
48/* key strings */
49
50static char strNoFileURL[] = {"NoFileUrl"};
51static char strNoFolderOptions[] = {"NoFolderOptions"};
52static char strNoChangeStartMenu[] = {"NoChangeStartMenu"};
53static char strNoWindowsUpdate[] = {"NoWindowsUpdate"};
54static char strNoSetActiveDesktop[] = {"NoSetActiveDesktop"};
55static char strNoForgetSoftwareUpdate[] = {"NoForgetSoftwareUpdate"};
56static char strNoMSAppLogo[] = {"NoMSAppLogo5ChannelNotify"};
57static char strForceCopyACLW[] = {"ForceCopyACLWithFile"};
58static char strNoResolveTrk[] = {"NoResolveTrack"};
59static char strNoResolveSearch[] = {"NoResolveSearch"};
60static char strNoEditComponent[] = {"NoEditingComponents"};
61static char strNoMovingBand[] = {"NoMovingBands"};
62static char strNoCloseDragDrop[] = {"NoCloseDragDropBands"};
63static char strNoCloseComponent[] = {"NoClosingComponents"};
64static char strNoDelComponent[] = {"NoDeletingComponents"};
65static char strNoAddComponent[] = {"NoAddingComponents"};
66static char strNoComponent[] = {"NoComponents"};
67static char strNoChangeWallpaper[] = {"NoChangingWallpaper"};
68static char strNoHTMLWallpaper[] = {"NoHTMLWallpaper"};
69static char strNoCustomWebView[] = {"NoCustomizeWebView"};
70static char strClassicShell[] = {"ClassicShell"};
71static char strClearRecentDocs[] = {"ClearRecentDocsOnExit"};
72static char strNoFavoritesMenu[] = {"NoFavoritesMenu"};
73static char strNoActiveDesktopChanges[] = {"NoActiveDesktopChanges"};
74static char strNoActiveDesktop[] = {"NoActiveDesktop"};
75static char strNoRecentDocMenu[] = {"NoRecentDocsMenu"};
76static char strNoRecentDocHistory[] = {"NoRecentDocsHistory"};
77static char strNoInetIcon[] = {"NoInternetIcon"};
78static char strNoStngsWizard[] = {"NoSettingsWizards"};
79static char strNoLogoff[] = {"NoLogoff"};
80static char strNoNetConDis[] = {"NoNetConnectDisconnect"};
81static char strNoContextMenu[] = {"NoViewContextMenu"};
82static char strNoTryContextMenu[] = {"NoTrayContextMenu"};
83static char strNoWebMenu[] = {"NoWebMenu"};
84static char strLnkResolveIgnoreLnkInfo[] = {"LinkResolveIgnoreLinkInfo"};
85static char strNoCommonGroups[] = {"NoCommonGroups"};
86static char strEnforceShlExtSecurity[] = {"EnforceShellExtensionSecurity"};
87static char strNoRealMode[] = {"NoRealMode"};
88static char strMyDocsOnNet[] = {"MyDocsOnNet"};
89static char strNoStartMenuSubfolder[] = {"NoStartMenuSubFolders"};
90static char strNoAddPrinters[] = {"NoAddPrinter"};
91static char strNoDeletePrinters[] = {"NoDeletePrinter"};
92static char strNoPrintTab[] = {"NoPrinterTabs"};
93static char strRestrictRun[] = {"RestrictRun"};
94static char strNoStartBanner[] = {"NoStartBanner"};
95static char strNoNetworkNeighborhood[] = {"NoNetHood"};
96static char strNoDriveTypeAtRun[] = {"NoDriveTypeAutoRun"};
97static char strNoDrivesAutoRun[] = {"NoDriveAutoRun"};
98static char strNoDrives[] = {"NoDrives"};
99static char strNoFind[] = {"NoFind"};
100static char strNoDesktop[] = {"NoDesktop"};
101static char strNoSetTaskBar[] = {"NoSetTaskbar"};
102static char strNoSetFld[] = {"NoSetFolders"};
103static char strNoFileMenu[] = {"NoFileMenu"};
104static char strNoSavSetng[] = {"NoSaveSettings"};
105static char strNoClose[] = {"NoClose"};
106static char strNoRun[] = {"NoRun"};
107
108/* policy data array */
109
110POLICYDATA sh32_policy_table[] =
111{
112 {
113 0x1,
114 strExplorer,
115 strNoRun,
116 SHELL_NO_POLICY
117 },
118 {
119 0x2,
120 strExplorer,
121 strNoClose,
122 SHELL_NO_POLICY
123 },
124 {
125 0x4,
126 strExplorer,
127 strNoSavSetng,
128 SHELL_NO_POLICY
129 },
130 {
131 0x8,
132 strExplorer,
133 strNoFileMenu,
134 SHELL_NO_POLICY
135 },
136 {
137 0x10,
138 strExplorer,
139 strNoSetFld,
140 SHELL_NO_POLICY
141 },
142 {
143 0x20,
144 strExplorer,
145 strNoSetTaskBar,
146 SHELL_NO_POLICY
147 },
148 {
149 0x40,
150 strExplorer,
151 strNoDesktop,
152 SHELL_NO_POLICY
153 },
154 {
155 0x80,
156 strExplorer,
157 strNoFind,
158 SHELL_NO_POLICY
159 },
160 {
161 0x100,
162 strExplorer,
163 strNoDrives,
164 SHELL_NO_POLICY
165 },
166 {
167 0x200,
168 strExplorer,
169 strNoDrivesAutoRun,
170 SHELL_NO_POLICY
171 },
172 {
173 0x400,
174 strExplorer,
175 strNoDriveTypeAtRun,
176 SHELL_NO_POLICY
177 },
178 {
179 0x800,
180 strExplorer,
181 strNoNetworkNeighborhood,
182 SHELL_NO_POLICY
183 },
184 {
185 0x1000,
186 strExplorer,
187 strNoStartBanner,
188 SHELL_NO_POLICY
189 },
190 {
191 0x2000,
192 strExplorer,
193 strRestrictRun,
194 SHELL_NO_POLICY
195 },
196 {
197 0x4000,
198 strExplorer,
199 strNoPrintTab,
200 SHELL_NO_POLICY
201 },
202 {
203 0x8000,
204 strExplorer,
205 strNoDeletePrinters,
206 SHELL_NO_POLICY
207 },
208 {
209 0x10000,
210 strExplorer,
211 strNoAddPrinters,
212 SHELL_NO_POLICY
213 },
214 {
215 0x20000,
216 strExplorer,
217 strNoStartMenuSubfolder,
218 SHELL_NO_POLICY
219 },
220 {
221 0x40000,
222 strExplorer,
223 strMyDocsOnNet,
224 SHELL_NO_POLICY
225 },
226 {
227 0x80000,
228 strWinOldApp,
229 strNoRealMode,
230 SHELL_NO_POLICY
231 },
232 {
233 0x100000,
234 strExplorer,
235 strEnforceShlExtSecurity,
236 SHELL_NO_POLICY
237 },
238 {
239 0x200000,
240 strExplorer,
241 strLnkResolveIgnoreLnkInfo,
242 SHELL_NO_POLICY
243 },
244 {
245 0x400000,
246 strExplorer,
247 strNoCommonGroups,
248 SHELL_NO_POLICY
249 },
250 {
251 0x1000000,
252 strExplorer,
253 strNoWebMenu,
254 SHELL_NO_POLICY
255 },
256 {
257 0x2000000,
258 strExplorer,
259 strNoTryContextMenu,
260 SHELL_NO_POLICY
261 },
262 {
263 0x4000000,
264 strExplorer,
265 strNoContextMenu,
266 SHELL_NO_POLICY
267 },
268 {
269 0x8000000,
270 strExplorer,
271 strNoNetConDis,
272 SHELL_NO_POLICY
273 },
274 {
275 0x10000000,
276 strExplorer,
277 strNoLogoff,
278 SHELL_NO_POLICY
279 },
280 {
281 0x20000000,
282 strExplorer,
283 strNoStngsWizard,
284 SHELL_NO_POLICY
285 },
286 {
287 0x40000001,
288 strExplorer,
289 strNoInetIcon,
290 SHELL_NO_POLICY
291 },
292 {
293 0x40000002,
294 strExplorer,
295 strNoRecentDocHistory,
296 SHELL_NO_POLICY
297 },
298 {
299 0x40000003,
300 strExplorer,
301 strNoRecentDocMenu,
302 SHELL_NO_POLICY
303 },
304 {
305 0x40000004,
306 strExplorer,
307 strNoActiveDesktop,
308 SHELL_NO_POLICY
309 },
310 {
311 0x40000005,
312 strExplorer,
313 strNoActiveDesktopChanges,
314 SHELL_NO_POLICY
315 },
316 {
317 0x40000006,
318 strExplorer,
319 strNoFavoritesMenu,
320 SHELL_NO_POLICY
321 },
322 {
323 0x40000007,
324 strExplorer,
325 strClearRecentDocs,
326 SHELL_NO_POLICY
327 },
328 {
329 0x40000008,
330 strExplorer,
331 strClassicShell,
332 SHELL_NO_POLICY
333 },
334 {
335 0x40000009,
336 strExplorer,
337 strNoCustomWebView,
338 SHELL_NO_POLICY
339 },
340 {
341 0x40000010,
342 strActiveDesk,
343 strNoHTMLWallpaper,
344 SHELL_NO_POLICY
345 },
346 {
347 0x40000011,
348 strActiveDesk,
349 strNoChangeWallpaper,
350 SHELL_NO_POLICY
351 },
352 {
353 0x40000012,
354 strActiveDesk,
355 strNoComponent,
356 SHELL_NO_POLICY
357 },
358 {
359 0x40000013,
360 strActiveDesk,
361 strNoAddComponent,
362 SHELL_NO_POLICY
363 },
364 {
365 0x40000014,
366 strActiveDesk,
367 strNoDelComponent,
368 SHELL_NO_POLICY
369 },
370 {
371 0x40000015,
372 strActiveDesk,
373 strNoCloseComponent,
374 SHELL_NO_POLICY
375 },
376 {
377 0x40000016,
378 strActiveDesk,
379 strNoCloseDragDrop,
380 SHELL_NO_POLICY
381 },
382 {
383 0x40000017,
384 strActiveDesk,
385 strNoMovingBand,
386 SHELL_NO_POLICY
387 },
388 {
389 0x40000018,
390 strActiveDesk,
391 strNoEditComponent,
392 SHELL_NO_POLICY
393 },
394 {
395 0x40000019,
396 strExplorer,
397 strNoResolveSearch,
398 SHELL_NO_POLICY
399 },
400 {
401 0x4000001a,
402 strExplorer,
403 strNoResolveTrk,
404 SHELL_NO_POLICY
405 },
406 {
407 0x4000001b,
408 strExplorer,
409 strForceCopyACLW,
410 SHELL_NO_POLICY
411 },
412 {
413 0x4000001c,
414 strExplorer,
415 strNoMSAppLogo,
416 SHELL_NO_POLICY
417 },
418 {
419 0x4000001d,
420 strExplorer,
421 strNoForgetSoftwareUpdate,
422 SHELL_NO_POLICY
423 },
424 {
425 0x4000001e,
426 strExplorer,
427 strNoSetActiveDesktop,
428 SHELL_NO_POLICY
429 },
430 {
431 0x4000001f,
432 strExplorer,
433 strNoWindowsUpdate,
434 SHELL_NO_POLICY
435 },
436 {
437 0x40000020,
438 strExplorer,
439 strNoChangeStartMenu,
440 SHELL_NO_POLICY
441 },
442 {
443 0x40000021,
444 strExplorer,
445 strNoFolderOptions,
446 SHELL_NO_POLICY
447 },
448 {
449 0x50000024,
450 strExplorer,
451 strNoFileURL,
452 SHELL_NO_POLICY
453 }
454};
455
456/*************************************************************************
457 * SHRestricted [SHELL32.100]
458 *
459 * walks through policy table, queries <app> key, <type> value, returns
460 * queried (DWORD) value, and caches it between called to SHInitRestricted
461 * to prevent unnecessary registry access.
462 *
463 * NOTES
464 * exported by ordinal
465 *
466 * REFERENCES:
467 * MS System Policy Editor
468 * 98Lite 2.0 (which uses many of these policy keys) http://www.98lite.net/
469 * "The Windows 95 Registry", by John Woram, 1996 MIS: Press
470 */
471DWORD WINAPI SHRestricted (DWORD pol) {
472 char regstr[256];
473 HKEY xhkey;
474 DWORD retval, polidx, i, datsize = 4;
475
476 TRACE("(%08lx)\n",pol);
477
478 polidx = -1;
479
480 /* scan to see if we know this policy ID */
481 for (i = 0; i < SHELL_MAX_POLICIES; i++)
482 {
483 if (pol == sh32_policy_table[i].polflags)
484 {
485 polidx = i;
486 break;
487 }
488 }
489
490 if (polidx == -1)
491 {
492 /* we don't know this policy, return 0 */
493 TRACE("unknown policy: (%08lx)\n", pol);
494 return 0;
495 }
496
497 /* we have a known policy */
498 strcpy(regstr, "Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\");
499 strcat(regstr, sh32_policy_table[polidx].appstr);
500
501 /* first check if this policy has been cached, return it if so */
502 if (sh32_policy_table[polidx].cache != SHELL_NO_POLICY)
503 {
504 return sh32_policy_table[polidx].cache;
505 }
506
507 /* return 0 and don't set the cache if any registry errors occur */
508 retval = 0;
509 if (RegOpenKeyA(HKEY_CURRENT_USER, regstr, &xhkey) == ERROR_SUCCESS)
510 {
511 if (RegQueryValueExA(xhkey, sh32_policy_table[polidx].keystr, NULL, NULL, (LPBYTE)&retval, &datsize) == ERROR_SUCCESS)
512 {
513 sh32_policy_table[polidx].cache = retval;
514 }
515
516 RegCloseKey(xhkey);
517}
518
519 return retval;
520}
521
522/*************************************************************************
523 * SHInitRestricted [SHELL32.244]
524 *
525 * Win98+ by-ordinal only routine called by Explorer and MSIE 4 and 5.
526 * Inits the policy cache used by SHRestricted to avoid excess
527 * registry access.
528 *
529 * INPUTS
530 * Two inputs: one is a string or NULL. If non-NULL the pointer
531 * should point to a string containing the following exact text:
532 * "Software\Microsoft\Windows\CurrentVersion\Policies".
533 * The other input is unused.
534 *
535 * NOTES
536 * If the input is non-NULL and does not point to a string containing
537 * that exact text the routine will do nothing.
538 *
539 * If the text does match or the pointer is NULL, then the routine
540 * will init SHRestricted()'s policy cache to all 0xffffffff and
541 * returns 0xffffffff as well.
542 *
543 * I haven't yet run into anything calling this with inputs other than
544 * (NULL, NULL), so I may have the inputs reversed.
545 */
546
547BOOL WINAPI SHInitRestricted(LPSTR inpRegKey, LPSTR parm2)
548{
549 int i;
550
551 TRACE("(%p, %p)\n", inpRegKey, parm2);
552
553 /* first check - if input is non-NULL and points to the secret
554 key string, then pass. Otherwise return 0.
555 */
556
557 if (inpRegKey != (LPSTR)NULL)
558 {
559 if (lstrcmpiA(inpRegKey, "Software\\Microsoft\\Windows\\CurrentVersion\\Policies"))
560 {
561 /* doesn't match, fail */
562 return 0;
563 }
564 }
565
566 /* check passed, init all policy cache entries with SHELL_NO_POLICY */
567 for (i = 0; i < SHELL_MAX_POLICIES; i++)
568 {
569 sh32_policy_table[i].cache = SHELL_NO_POLICY;
570 }
571
572 return SHELL_NO_POLICY;
573}
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