MagickCore 7.1.2-28
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policy.c
1/*
2%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3% %
4% %
5% PPPP OOO L IIIII CCCC Y Y %
6% P P O O L I C Y Y %
7% PPPP O O L I C Y %
8% P O O L I C Y %
9% P OOO LLLLL IIIII CCCC Y %
10% %
11% %
12% MagickCore Policy Methods %
13% %
14% Software Design %
15% Cristy %
16% July 1992 %
17% %
18% %
19% Copyright @ 1999 ImageMagick Studio LLC, a non-profit organization %
20% dedicated to making software imaging solutions freely available. %
21% %
22% You may not use this file except in compliance with the License. You may %
23% obtain a copy of the License at %
24% %
25% https://imagemagick.org/license/ %
26% %
27% Unless required by applicable law or agreed to in writing, software %
28% distributed under the License is distributed on an "AS IS" BASIS, %
29% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
30% See the License for the specific language governing permissions and %
31% limitations under the License. %
32% %
33%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
34%
35*/
36␌
37/*
38 Include declarations.
39*/
40#include "MagickCore/studio.h"
41#include "MagickCore/cache-private.h"
42#include "MagickCore/client.h"
43#include "MagickCore/configure.h"
44#include "MagickCore/configure-private.h"
45#include "MagickCore/exception.h"
46#include "MagickCore/exception-private.h"
47#include "MagickCore/linked-list-private.h"
48#include "MagickCore/magick-private.h"
49#include "MagickCore/memory_.h"
50#include "MagickCore/memory-private.h"
51#include "MagickCore/monitor.h"
52#include "MagickCore/monitor-private.h"
53#include "MagickCore/option.h"
54#include "MagickCore/policy.h"
55#include "MagickCore/policy-private.h"
56#include "MagickCore/resource_.h"
57#include "MagickCore/resource-private.h"
58#include "MagickCore/semaphore.h"
59#include "MagickCore/stream-private.h"
60#include "MagickCore/string_.h"
61#include "MagickCore/string-private.h"
62#include "MagickCore/token.h"
63#include "MagickCore/timer-private.h"
64#include "MagickCore/utility.h"
65#include "MagickCore/utility-private.h"
66#include "MagickCore/xml-tree.h"
67#include "MagickCore/xml-tree-private.h"
68#if defined(MAGICKCORE_XML_DELEGATE)
69# include <libxml/parser.h>
70# include <libxml/tree.h>
71#endif
72␌
73/*
74 Define declarations.
75*/
76#define PolicyFilename "policy.xml"
77␌
78/*
79 Typedef declarations.
80*/
81struct _PolicyInfo
82{
83 char
84 *path;
85
86 PolicyDomain
87 domain;
88
89 PolicyRights
90 rights;
91
92 char
93 *name,
94 *pattern,
95 *value;
96
97 MagickBooleanType
98 exempt,
99 stealth,
100 debug;
101
102 SemaphoreInfo
103 *semaphore;
104
105 size_t
106 signature;
107};
108
109typedef struct _PolicyMapInfo
110{
111 const PolicyDomain
112 domain;
113
114 const PolicyRights
115 rights;
116
117 const char
118 *name,
119 *pattern,
120 *value;
121} PolicyMapInfo;
122␌
123/*
124 Static declarations.
125*/
126static const PolicyMapInfo
127 PolicyMap[] =
128 {
129 { UndefinedPolicyDomain, UndefinedPolicyRights, (const char *) NULL,
130 (const char *) NULL, (const char *) NULL }
131 };
132
133static LinkedListInfo
134 *policy_cache = (LinkedListInfo *) NULL;
135
136static SemaphoreInfo
137 *policy_semaphore = (SemaphoreInfo *) NULL;
138␌
139/*
140 Forward declarations.
141*/
142static MagickBooleanType
143 IsPolicyCacheInstantiated(ExceptionInfo *),
144 LoadPolicyCache(LinkedListInfo *,const char *,const char *,const size_t,
145 ExceptionInfo *);
146␌
147/*
148%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
149% %
150% %
151% %
152% A c q u i r e P o l i c y C a c h e %
153% %
154% %
155% %
156%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
157%
158% AcquirePolicyCache() caches one or more policy configurations which provides
159% a mapping between policy attributes and a policy name.
160%
161% The format of the AcquirePolicyCache method is:
162%
163% LinkedListInfo *AcquirePolicyCache(const char *filename,
164% ExceptionInfo *exception)
165%
166% A description of each parameter follows:
167%
168% o filename: the policy configuration file name.
169%
170% o exception: return any errors or warnings in this structure.
171%
172*/
173static LinkedListInfo *AcquirePolicyCache(const char *filename,
174 ExceptionInfo *exception)
175{
176 LinkedListInfo
177 *cache;
178
179 MagickBooleanType
180 status;
181
182 ssize_t
183 i;
184
185 /*
186 Load external policy map.
187 */
188 cache=NewLinkedList(0);
189 status=MagickTrue;
190#if MAGICKCORE_ZERO_CONFIGURATION_SUPPORT
191 magick_unreferenced(filename);
192 status=LoadPolicyCache(cache,ZeroConfigurationPolicy,"[zero-configuration]",0,
193 exception);
194 if (status == MagickFalse)
195 CatchException(exception);
196#else
197 {
198 const StringInfo
199 *option;
200
201 LinkedListInfo
202 *options;
203
204 options=GetConfigureOptions(filename,exception);
205 option=(const StringInfo *) GetNextValueInLinkedList(options);
206 while (option != (const StringInfo *) NULL)
207 {
208 status=LoadPolicyCache(cache,(const char *) GetStringInfoDatum(option),
209 GetStringInfoPath(option),0,exception);
210 if (status == MagickFalse)
211 CatchException(exception);
212 option=(const StringInfo *) GetNextValueInLinkedList(options);
213 }
214 options=DestroyConfigureOptions(options);
215 }
216#endif
217 /*
218 Load built-in policy map.
219 */
220 for (i=0; i < (ssize_t) (sizeof(PolicyMap)/sizeof(*PolicyMap)); i++)
221 {
222 const PolicyMapInfo
223 *p;
224
225 PolicyInfo
226 *policy_info;
227
228 p=PolicyMap+i;
229 policy_info=(PolicyInfo *) AcquireMagickMemory(sizeof(*policy_info));
230 if (policy_info == (PolicyInfo *) NULL)
231 {
232 (void) ThrowMagickException(exception,GetMagickModule(),
233 ResourceLimitError,"MemoryAllocationFailed","`%s'",
234 p->name == (char *) NULL ? "" : p->name);
235 CatchException(exception);
236 continue;
237 }
238 (void) memset(policy_info,0,sizeof(*policy_info));
239 policy_info->path=(char *) "[built-in]";
240 policy_info->domain=p->domain;
241 policy_info->rights=p->rights;
242 policy_info->name=(char *) p->name;
243 policy_info->pattern=(char *) p->pattern;
244 policy_info->value=(char *) p->value;
245 policy_info->exempt=MagickTrue;
246 policy_info->signature=MagickCoreSignature;
247 status=AppendValueToLinkedList(cache,policy_info);
248 if (status == MagickFalse)
249 {
250 (void) ThrowMagickException(exception,GetMagickModule(),
251 ResourceLimitError,"MemoryAllocationFailed","`%s'",
252 p->name == (char *) NULL ? "" : p->name);
253 CatchException(exception);
254 }
255 }
256 return(cache);
257}
258␌
259/*
260%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
261% %
262% %
263% %
264+ G e t P o l i c y I n f o %
265% %
266% %
267% %
268%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
269%
270% GetPolicyInfo() searches the policy list for the specified name and if found
271% returns attributes for that policy.
272%
273% The format of the GetPolicyInfo method is:
274%
275% PolicyInfo *GetPolicyInfo(const char *name,ExceptionInfo *exception)
276%
277% A description of each parameter follows:
278%
279% o name: the policy name.
280%
281% o exception: return any errors or warnings in this structure.
282%
283*/
284static PolicyInfo *GetPolicyInfo(const char *name,ExceptionInfo *exception)
285{
286 char
287 policyname[MagickPathExtent],
288 *q;
289
290 ElementInfo
291 *p;
292
293 PolicyDomain
294 domain;
295
296 PolicyInfo
297 *policy;
298
299 assert(exception != (ExceptionInfo *) NULL);
300 if (IsPolicyCacheInstantiated(exception) == MagickFalse)
301 return((PolicyInfo *) NULL);
302 /*
303 Strip names of whitespace.
304 */
305 *policyname='\0';
306 if (name != (const char *) NULL)
307 (void) CopyMagickString(policyname,name,MagickPathExtent);
308 for (q=policyname; *q != '\0'; q++)
309 {
310 if (isspace((int) ((unsigned char) *q)) == 0)
311 continue;
312 (void) CopyMagickString(q,q+1,MagickPathExtent);
313 q--;
314 }
315 /*
316 Strip domain from policy name (e.g. resource:map).
317 */
318 domain=UndefinedPolicyDomain;
319 for (q=policyname; *q != '\0'; q++)
320 {
321 if (*q != ':')
322 continue;
323 *q='\0';
324 domain=(PolicyDomain) ParseCommandOption(MagickPolicyDomainOptions,
325 MagickTrue,policyname);
326 (void) CopyMagickString(policyname,q+1,MagickPathExtent);
327 break;
328 }
329 /*
330 Search for policy tag.
331 */
332 policy=(PolicyInfo *) NULL;
333 LockSemaphoreInfo(policy_semaphore);
334 ResetLinkedListIterator(policy_cache);
335 p=GetHeadElementInLinkedList(policy_cache);
336 if ((name == (const char *) NULL) || (LocaleCompare(name,"*") == 0))
337 {
338 UnlockSemaphoreInfo(policy_semaphore);
339 if (p != (ElementInfo *) NULL)
340 policy=(PolicyInfo *) p->value;
341 return(policy);
342 }
343 while (p != (ElementInfo *) NULL)
344 {
345 policy=(PolicyInfo *) p->value;
346 if ((domain == UndefinedPolicyDomain) || (policy->domain == domain))
347 if (LocaleCompare(policyname,policy->name) == 0)
348 break;
349 p=p->next;
350 }
351 if (p == (ElementInfo *) NULL)
352 policy=(PolicyInfo *) NULL;
353 else
354 (void) SetHeadElementInLinkedList(policy_cache,p);
355 UnlockSemaphoreInfo(policy_semaphore);
356 return(policy);
357}
358␌
359/*
360%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
361% %
362% %
363% %
364% G e t P o l i c y I n f o L i s t %
365% %
366% %
367% %
368%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
369%
370% GetPolicyInfoList() returns any policies that match the specified pattern.
371%
372% The format of the GetPolicyInfoList function is:
373%
374% const PolicyInfo **GetPolicyInfoList(const char *pattern,
375% size_t *number_policies,ExceptionInfo *exception)
376%
377% A description of each parameter follows:
378%
379% o pattern: Specifies a pointer to a text string containing a pattern.
380%
381% o number_policies: returns the number of policies in the list.
382%
383% o exception: return any errors or warnings in this structure.
384%
385*/
386MagickExport const PolicyInfo **GetPolicyInfoList(const char *pattern,
387 size_t *number_policies,ExceptionInfo *exception)
388{
389 const PolicyInfo
390 **policies;
391
392 ElementInfo
393 *p;
394
395 ssize_t
396 i;
397
398 assert(pattern != (char *) NULL);
399 assert(number_policies != (size_t *) NULL);
400 if (IsEventLogging() != MagickFalse)
401 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
402 *number_policies=0;
403 if (IsPolicyCacheInstantiated(exception) == MagickFalse)
404 return((const PolicyInfo **) NULL);
405 policies=(const PolicyInfo **) AcquireQuantumMemory((size_t)
406 GetNumberOfElementsInLinkedList(policy_cache)+1UL,sizeof(*policies));
407 if (policies == (const PolicyInfo **) NULL)
408 return((const PolicyInfo **) NULL);
409 LockSemaphoreInfo(policy_semaphore);
410 p=GetHeadElementInLinkedList(policy_cache);
411 for (i=0; p != (ElementInfo *) NULL; )
412 {
413 const PolicyInfo
414 *policy;
415
416 policy=(const PolicyInfo *) p->value;
417 if ((policy->stealth == MagickFalse) &&
418 (GlobExpression(policy->name,pattern,MagickFalse) != MagickFalse))
419 policies[i++]=policy;
420 p=p->next;
421 }
422 UnlockSemaphoreInfo(policy_semaphore);
423 if (i == 0)
424 policies=(const PolicyInfo **) RelinquishMagickMemory((void*) policies);
425 else
426 policies[i]=(PolicyInfo *) NULL;
427 *number_policies=(size_t) i;
428 return(policies);
429}
430␌
431/*
432%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
433% %
434% %
435% %
436% G e t P o l i c y L i s t %
437% %
438% %
439% %
440%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
441%
442% GetPolicyList() returns any policies that match the specified pattern.
443%
444% The format of the GetPolicyList function is:
445%
446% char **GetPolicyList(const char *pattern,size_t *number_policies,
447% ExceptionInfo *exception)
448%
449% A description of each parameter follows:
450%
451% o pattern: a pointer to a text string containing a pattern.
452%
453% o number_policies: returns the number of policies in the list.
454%
455% o exception: return any errors or warnings in this structure.
456%
457*/
458
459static char *AcquirePolicyString(const char *source,const size_t pad)
460{
461 char
462 *destination;
463
464 size_t
465 length;
466
467 length=0;
468 if (source != (char *) NULL)
469 length+=strlen(source);
470 destination=(char *) NULL;
471 /* AcquireMagickMemory needs to be used here to avoid an omp deadlock */
472 if (~length >= pad)
473 destination=(char *) AcquireMagickMemory((length+pad)*sizeof(*destination));
474 if (destination == (char *) NULL)
475 ThrowFatalException(ResourceLimitFatalError,"UnableToAcquireString");
476 if (source != (char *) NULL)
477 (void) memcpy(destination,source,length*sizeof(*destination));
478 destination[length]='\0';
479 return(destination);
480}
481
482MagickExport char **GetPolicyList(const char *pattern,size_t *number_policies,
483 ExceptionInfo *exception)
484{
485 char
486 **policies;
487
488 const ElementInfo
489 *p;
490
491 ssize_t
492 i;
493
494 assert(pattern != (char *) NULL);
495 assert(number_policies != (size_t *) NULL);
496 if (IsEventLogging() != MagickFalse)
497 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",pattern);
498 *number_policies=0;
499 if (IsPolicyCacheInstantiated(exception) == MagickFalse)
500 return((char **) NULL);
501 policies=(char **) AcquireQuantumMemory((size_t)
502 GetNumberOfElementsInLinkedList(policy_cache)+1UL,sizeof(*policies));
503 if (policies == (char **) NULL)
504 return((char **) NULL);
505 LockSemaphoreInfo(policy_semaphore);
506 p=GetHeadElementInLinkedList(policy_cache);
507 for (i=0; p != (ElementInfo *) NULL; )
508 {
509 const PolicyInfo
510 *policy;
511
512 policy=(const PolicyInfo *) p->value;
513 if ((policy->stealth == MagickFalse) &&
514 (GlobExpression(policy->name,pattern,MagickFalse) != MagickFalse))
515 policies[i++]=AcquirePolicyString(policy->name,1);
516 p=p->next;
517 }
518 UnlockSemaphoreInfo(policy_semaphore);
519 if (i == 0)
520 policies=(char **) RelinquishMagickMemory(policies);
521 else
522 policies[i]=(char *) NULL;
523 *number_policies=(size_t) i;
524 return(policies);
525}
526␌
527/*
528%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
529% %
530% %
531% %
532% G e t P o l i c y V a l u e %
533% %
534% %
535% %
536%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
537%
538% GetPolicyValue() returns the value associated with the named policy.
539%
540% The format of the GetPolicyValue method is:
541%
542% char *GetPolicyValue(const char *name)
543%
544% A description of each parameter follows:
545%
546% o name: The name of the policy.
547%
548*/
549MagickExport char *GetPolicyValue(const char *name)
550{
551 const char
552 *value;
553
554 const PolicyInfo
555 *policy_info;
556
557 ExceptionInfo
558 *exception;
559
560 assert(name != (const char *) NULL);
561 if (IsEventLogging() != MagickFalse)
562 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",name);
563 exception=AcquireExceptionInfo();
564 policy_info=GetPolicyInfo(name,exception);
565 exception=DestroyExceptionInfo(exception);
566 if (policy_info == (PolicyInfo *) NULL)
567 return((char *) NULL);
568 value=policy_info->value;
569 if ((value == (const char *) NULL) || (*value == '\0'))
570 return((char *) NULL);
571 return(AcquirePolicyString(value,1));
572}
573␌
574/*
575%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
576% %
577% %
578% %
579+ I s P o l i c y C a c h e I n s t a n t i a t e d %
580% %
581% %
582% %
583%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
584%
585% IsPolicyCacheInstantiated() determines if the policy list is instantiated.
586% If not, it instantiates the list and returns it.
587%
588% The format of the IsPolicyInstantiated method is:
589%
590% MagickBooleanType IsPolicyCacheInstantiated(ExceptionInfo *exception)
591%
592% A description of each parameter follows.
593%
594% o exception: return any errors or warnings in this structure.
595%
596*/
597static MagickBooleanType IsPolicyCacheInstantiated(ExceptionInfo *exception)
598{
599 if (policy_cache == (LinkedListInfo *) NULL)
600 {
601 (void) GetMaxMemoryRequest(); /* avoid OMP deadlock */
602 if (policy_semaphore == (SemaphoreInfo *) NULL)
603 ActivateSemaphoreInfo(&policy_semaphore);
604 LockSemaphoreInfo(policy_semaphore);
605 if (policy_cache == (LinkedListInfo *) NULL)
606 policy_cache=AcquirePolicyCache(PolicyFilename,exception);
607 UnlockSemaphoreInfo(policy_semaphore);
608 }
609 return(policy_cache != (LinkedListInfo *) NULL ? MagickTrue : MagickFalse);
610}
611␌
612/*
613%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
614% %
615% %
616% %
617% I s R i g h t s A u t h o r i z e d %
618% %
619% %
620% %
621%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
622%
623% IsRightsAuthorized() returns MagickTrue if the policy authorizes the
624% requested rights for the specified domain.
625%
626% Policy evaluation uses a “last match wins” model. Be careful when adding
627% new rules: any later policy can override earlier denies or allows. Place
628% broad deny rules first, followed by specific exceptions, and review
629% ordering to avoid accidental authorization.
630%
631% The format of the IsRightsAuthorized method is:
632%
633% MagickBooleanType IsRightsAuthorized(const PolicyDomain domain,
634% const PolicyRights rights,const char *pattern)
635%
636% A description of each parameter follows:
637%
638% o domain: the policy domain.
639%
640% o rights: the policy rights.
641%
642% o pattern: the pattern.
643%
644*/
645
646MagickExport MagickBooleanType IsRightsAuthorizedByName(
647 const PolicyDomain domain,const char *name,const PolicyRights rights,
648 const char *pattern)
649{
650 char
651 *canonical_directory = (char *) NULL,
652 *canonical_path = (char *) NULL,
653 *canonical_candidate = (char *) NULL,
654 directory[MagickPathExtent],
655 filename[MagickPathExtent];
656
657 ElementInfo
658 *p;
659
660 ExceptionInfo
661 *exception;
662
663 MagickBooleanType
664 canonical_matched_any = MagickFalse,
665 matched_any = MagickFalse,
666 paths_provisioned = MagickFalse,
667 status;
668
669 PolicyRights
670 canonical_allowed_accumulator = AllPolicyRights,
671 effective_rights = AllPolicyRights;
672
673 /*
674 Load policies.
675 */
676 if ((GetLogEventMask() & PolicyEvent) != 0)
677 (void) LogMagickEvent(PolicyEvent,GetMagickModule(),
678 "Domain: %s; name: %s; rights=%s; pattern=\"%s\"; ...",
679 CommandOptionToMnemonic(MagickPolicyDomainOptions,domain),
680 name == (const char *) NULL ? "undefined" : name,
681 CommandOptionToMnemonic(MagickPolicyRightsOptions,rights),
682 pattern == (const char *) NULL ? "undefined" : pattern);
683 exception=AcquireExceptionInfo();
684 status=IsPolicyCacheInstantiated(exception);
685 exception=DestroyExceptionInfo(exception);
686 if (status == MagickFalse)
687 {
688 if ((GetLogEventMask() & PolicyEvent) != 0)
689 (void) LogMagickEvent(PolicyEvent,GetMagickModule(),
690 " authorized: true (no security policies found)");
691 return(MagickTrue);
692 }
693 /*
694 Evaluate policies in order; last match wins, however, canonical denies are
695 enforced after evaluation.
696 */
697 LockSemaphoreInfo(policy_semaphore);
698 ResetLinkedListIterator(policy_cache);
699 p=GetHeadElementInLinkedList(policy_cache);
700 for ( ; p != (ElementInfo *) NULL; p=p->next)
701 {
702 const PolicyInfo
703 *policy = (PolicyInfo *) p->value;
704
705 MagickBooleanType
706 match = MagickFalse,
707 matched_canonical = MagickFalse;
708
709 if (policy->domain != domain)
710 continue;
711 if ((name != (char *) NULL) && (LocaleCompare(name,policy->name) != 0))
712 continue;
713 match=GlobExpression(pattern,policy->pattern,MagickFalse);
714 if (policy->domain == PathPolicyDomain)
715 {
716 if (paths_provisioned == MagickFalse)
717 {
718 /*
719 Generate directory, basename, and canonical path.
720 */
721 paths_provisioned=MagickTrue;
722 GetPathComponent(pattern,HeadPath,directory);
723 GetPathComponent(pattern,TailPath,filename);
724 canonical_directory=realpath_utf8(directory);
725 if ((canonical_directory != (char *) NULL) && (*filename != '\0'))
726 {
727 size_t
728 length;
729
730 length=strlen(canonical_directory)+strlen(filename)+2;
731 canonical_candidate=(char *) AcquireCriticalMemory(length*
732 sizeof(*canonical_candidate));
733 if (canonical_candidate != (char *) NULL)
734 (void) FormatLocaleString(canonical_candidate,length,"%s%s%s",
735 canonical_directory,DirectorySeparator,filename);
736 }
737 canonical_path=realpath_utf8(pattern);
738 }
739 /*
740 Match against directory, basename, and canonical path.
741 */
742 if ((canonical_directory != (char *) NULL) && (match == MagickFalse))
743 match=GlobExpression(canonical_directory,policy->pattern,MagickFalse);
744 if ((canonical_candidate != (char *) NULL) && (match == MagickFalse))
745 match=GlobExpression(canonical_candidate,policy->pattern,MagickFalse);
746 if ((canonical_path != (char *) NULL) && (match == MagickFalse))
747 match=GlobExpression(canonical_path,policy->pattern,MagickFalse);
748 if ((canonical_path != (char *) NULL) &&
749 (GlobExpression(canonical_path,policy->pattern,MagickFalse) != MagickFalse))
750 matched_canonical=MagickTrue;
751 else
752 if ((canonical_candidate != (char *) NULL) &&
753 (GlobExpression(canonical_candidate,policy->pattern,MagickFalse) != MagickFalse))
754 matched_canonical=MagickTrue;
755 else
756 if ((canonical_directory != (char *) NULL) &&
757 (GlobExpression(canonical_directory,policy->pattern,MagickFalse) != MagickFalse))
758 matched_canonical=MagickTrue;
759 }
760 if (match == MagickFalse)
761 continue;
762 matched_any=MagickTrue;
763 effective_rights=policy->rights;
764 if (matched_canonical != MagickFalse)
765 {
766 /*
767 If this match was against a canonical form, accumulate allowed rights.
768 */
769 canonical_matched_any=MagickTrue;
770 canonical_allowed_accumulator=(PolicyRights) ((int)
771 canonical_allowed_accumulator & (int) policy->rights);
772 }
773 }
774 UnlockSemaphoreInfo(policy_semaphore);
775 if (canonical_directory != (char *) NULL)
776 canonical_directory=DestroyString(canonical_directory);
777 if (canonical_candidate != (char *) NULL)
778 canonical_candidate=DestroyString(canonical_candidate);
779 if (canonical_path != (char *) NULL)
780 canonical_path=DestroyString(canonical_path);
781 /*
782 Is rights authorized?
783 */
784 status=MagickTrue;
785 if (matched_any != MagickFalse)
786 {
787 if (((rights & ReadPolicyRights) != 0) &&
788 ((effective_rights & ReadPolicyRights) == 0))
789 status=MagickFalse;
790 if (((rights & WritePolicyRights) != 0) &&
791 ((effective_rights & WritePolicyRights) == 0))
792 status=MagickFalse;
793 if (((rights & ExecutePolicyRights) != 0) &&
794 ((effective_rights & ExecutePolicyRights) == 0))
795 status=MagickFalse;
796 }
797 /*
798 Enforce sticky canonical denies.
799 */
800 if (canonical_matched_any != MagickFalse)
801 {
802 PolicyRights canonical_denied_mask = (PolicyRights) ((int)
803 AllPolicyRights & (int) ~canonical_allowed_accumulator);
804 if ((canonical_denied_mask & rights) != 0)
805 status=MagickFalse;
806 }
807 if ((GetLogEventMask() & PolicyEvent) != 0)
808 (void) LogMagickEvent(PolicyEvent,GetMagickModule(),
809 " authorized: %s",status == MagickFalse ? "false" : "true");
810 return(status);
811}
812
813MagickExport MagickBooleanType IsRightsAuthorized(const PolicyDomain domain,
814 const PolicyRights rights,const char *pattern)
815{
816 return(IsRightsAuthorizedByName(domain,(const char *) NULL,rights,pattern));
817}
818␌
819/*
820%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
821% %
822% %
823% %
824% L i s t P o l i c y I n f o %
825% %
826% %
827% %
828%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
829%
830% ListPolicyInfo() lists policies to the specified file.
831%
832% The format of the ListPolicyInfo method is:
833%
834% MagickBooleanType ListPolicyInfo(FILE *file,ExceptionInfo *exception)
835%
836% A description of each parameter follows.
837%
838% o file: List policy names to this file handle.
839%
840% o exception: return any errors or warnings in this structure.
841%
842*/
843MagickExport MagickBooleanType ListPolicyInfo(FILE *file,
844 ExceptionInfo *exception)
845{
846 const char
847 *path,
848 *domain;
849
850 const PolicyInfo
851 **policy_info;
852
853 ssize_t
854 i;
855
856 size_t
857 number_policies;
858
859 /*
860 List name and attributes of each policy in the list.
861 */
862 if (file == (const FILE *) NULL)
863 file=stdout;
864 policy_info=GetPolicyInfoList("*",&number_policies,exception);
865 if (policy_info == (const PolicyInfo **) NULL)
866 return(MagickFalse);
867 path=(const char *) NULL;
868 for (i=0; i < (ssize_t) number_policies; i++)
869 {
870 if (policy_info[i]->stealth != MagickFalse)
871 continue;
872 if (((path == (const char *) NULL) ||
873 (LocaleCompare(path,policy_info[i]->path) != 0)) &&
874 (policy_info[i]->path != (char *) NULL))
875 (void) FormatLocaleFile(file,"\nPath: %s\n",policy_info[i]->path);
876 path=policy_info[i]->path;
877 domain=CommandOptionToMnemonic(MagickPolicyDomainOptions,
878 policy_info[i]->domain);
879 (void) FormatLocaleFile(file," Policy: %s\n",domain);
880 if ((policy_info[i]->domain == CachePolicyDomain) ||
881 (policy_info[i]->domain == ResourcePolicyDomain) ||
882 (policy_info[i]->domain == SystemPolicyDomain))
883 {
884 if (policy_info[i]->name != (char *) NULL)
885 (void) FormatLocaleFile(file," name: %s\n",policy_info[i]->name);
886 if (policy_info[i]->value != (char *) NULL)
887 (void) FormatLocaleFile(file," value: %s\n",policy_info[i]->value);
888 }
889 else
890 {
891 (void) FormatLocaleFile(file," rights: ");
892 if (policy_info[i]->rights == NoPolicyRights)
893 (void) FormatLocaleFile(file,"None ");
894 if ((policy_info[i]->rights & ReadPolicyRights) != 0)
895 (void) FormatLocaleFile(file,"Read ");
896 if ((policy_info[i]->rights & WritePolicyRights) != 0)
897 (void) FormatLocaleFile(file,"Write ");
898 if ((policy_info[i]->rights & ExecutePolicyRights) != 0)
899 (void) FormatLocaleFile(file,"Execute ");
900 (void) FormatLocaleFile(file,"\n");
901 if (policy_info[i]->pattern != (char *) NULL)
902 (void) FormatLocaleFile(file," pattern: %s\n",
903 policy_info[i]->pattern);
904 }
905 }
906 policy_info=(const PolicyInfo **) RelinquishMagickMemory((void *)
907 policy_info);
908 (void) fflush(file);
909 return(MagickTrue);
910}
911␌
912/*
913%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
914% %
915% %
916% %
917+ L o a d P o l i c y C a c h e %
918% %
919% %
920% %
921%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
922%
923% LoadPolicyCache() loads the policy configurations which provides a mapping
924% between policy attributes and a policy domain.
925%
926% The format of the LoadPolicyCache method is:
927%
928% MagickBooleanType LoadPolicyCache(LinkedListInfo *cache,const char *xml,
929% const char *filename,const size_t depth,ExceptionInfo *exception)
930%
931% A description of each parameter follows:
932%
933% o xml: The policy list in XML format.
934%
935% o filename: The policy list filename.
936%
937% o depth: depth of <include /> statements.
938%
939% o exception: return any errors or warnings in this structure.
940%
941*/
942static MagickBooleanType LoadPolicyCache(LinkedListInfo *cache,
943 const char *policy,const char *filename,const size_t depth,
944 ExceptionInfo *exception)
945{
946 char
947 keyword[MagickPathExtent],
948 *token;
949
950 const char
951 *q;
952
953 MagickStatusType
954 status;
955
956 PolicyInfo
957 *policy_info;
958
959 size_t
960 extent;
961
962 /*
963 Load the policy map file.
964 */
965 (void) LogMagickEvent(ConfigureEvent,GetMagickModule(),
966 "Loading policy file \"%s\" ...",filename);
967 if (policy == (char *) NULL)
968 return(MagickFalse);
969 status=MagickTrue;
970 policy_info=(PolicyInfo *) NULL;
971 token=AcquirePolicyString(policy,MagickPathExtent);
972 extent=strlen(token)+MagickPathExtent;
973 for (q=policy; *q != '\0'; )
974 {
975 /*
976 Interpret XML.
977 */
978 (void) GetNextToken(q,&q,extent,token);
979 if (*token == '\0')
980 break;
981 (void) CopyMagickString(keyword,token,MagickPathExtent);
982 if (LocaleNCompare(keyword,"<!DOCTYPE",9) == 0)
983 {
984 /*
985 Docdomain element.
986 */
987 while ((LocaleNCompare(q,"]>",2) != 0) && (*q != '\0'))
988 (void) GetNextToken(q,&q,extent,token);
989 continue;
990 }
991 if (LocaleNCompare(keyword,"<!--",4) == 0)
992 {
993 /*
994 Comment element.
995 */
996 while ((LocaleNCompare(q,"->",2) != 0) && (*q != '\0'))
997 (void) GetNextToken(q,&q,extent,token);
998 continue;
999 }
1000 if (LocaleCompare(keyword,"<include") == 0)
1001 {
1002 /*
1003 Include element.
1004 */
1005 while (((*token != '/') && (*(token+1) != '>')) && (*q != '\0'))
1006 {
1007 (void) CopyMagickString(keyword,token,MagickPathExtent);
1008 (void) GetNextToken(q,&q,extent,token);
1009 if (*token != '=')
1010 continue;
1011 (void) GetNextToken(q,&q,extent,token);
1012 if (LocaleCompare(keyword,"file") == 0)
1013 {
1014 if (depth > MagickMaxRecursionDepth)
1015 (void) ThrowMagickException(exception,GetMagickModule(),
1016 ConfigureError,"IncludeElementNestedTooDeeply","`%s'",token);
1017 else
1018 {
1019 char
1020 path[MagickPathExtent],
1021 *file_xml;
1022
1023 GetPathComponent(filename,HeadPath,path);
1024 if (*path != '\0')
1025 (void) ConcatenateMagickString(path,DirectorySeparator,
1026 MagickPathExtent);
1027 if (*token == *DirectorySeparator)
1028 (void) CopyMagickString(path,token,MagickPathExtent);
1029 else
1030 (void) ConcatenateMagickString(path,token,MagickPathExtent);
1031 file_xml=FileToXML(path,~0UL);
1032 if (file_xml != (char *) NULL)
1033 {
1034 status&=(MagickStatusType) LoadPolicyCache(cache,file_xml,
1035 path,depth+1,exception);
1036 file_xml=DestroyString(file_xml);
1037 }
1038 }
1039 }
1040 }
1041 continue;
1042 }
1043 if (LocaleCompare(keyword,"<policy") == 0)
1044 {
1045 /*
1046 Policy element.
1047 */
1048 policy_info=(PolicyInfo *) AcquireCriticalMemory(sizeof(*policy_info));
1049 (void) memset(policy_info,0,sizeof(*policy_info));
1050 policy_info->path=AcquirePolicyString(filename,1);
1051 policy_info->exempt=MagickFalse;
1052 policy_info->signature=MagickCoreSignature;
1053 continue;
1054 }
1055 if (policy_info == (PolicyInfo *) NULL)
1056 continue;
1057 if ((LocaleCompare(keyword,"/>") == 0) ||
1058 (LocaleCompare(keyword,"</policy>") == 0))
1059 {
1060 status=AppendValueToLinkedList(cache,policy_info);
1061 if (status == MagickFalse)
1062 (void) ThrowMagickException(exception,GetMagickModule(),
1063 ResourceLimitError,"MemoryAllocationFailed","`%s'",
1064 policy_info->name);
1065 policy_info=(PolicyInfo *) NULL;
1066 continue;
1067 }
1068 (void) GetNextToken(q,(const char **) NULL,extent,token);
1069 if (*token != '=')
1070 continue;
1071 (void) GetNextToken(q,&q,extent,token);
1072 (void) GetNextToken(q,&q,extent,token);
1073 switch (*keyword)
1074 {
1075 case 'D':
1076 case 'd':
1077 {
1078 if (LocaleCompare((char *) keyword,"domain") == 0)
1079 {
1080 policy_info->domain=(PolicyDomain) ParseCommandOption(
1081 MagickPolicyDomainOptions,MagickTrue,token);
1082 break;
1083 }
1084 break;
1085 }
1086 case 'N':
1087 case 'n':
1088 {
1089 if (LocaleCompare((char *) keyword,"name") == 0)
1090 {
1091 policy_info->name=AcquirePolicyString(token,1);
1092 break;
1093 }
1094 break;
1095 }
1096 case 'P':
1097 case 'p':
1098 {
1099 if (LocaleCompare((char *) keyword,"pattern") == 0)
1100 {
1101 policy_info->pattern=AcquirePolicyString(token,1);
1102 break;
1103 }
1104 break;
1105 }
1106 case 'R':
1107 case 'r':
1108 {
1109 if (LocaleCompare((char *) keyword,"rights") == 0)
1110 {
1111 policy_info->rights=(PolicyRights) ParseCommandOption(
1112 MagickPolicyRightsOptions,MagickTrue,token);
1113 break;
1114 }
1115 break;
1116 }
1117 case 'S':
1118 case 's':
1119 {
1120 if (LocaleCompare((char *) keyword,"stealth") == 0)
1121 {
1122 policy_info->stealth=IsStringTrue(token);
1123 break;
1124 }
1125 break;
1126 }
1127 case 'V':
1128 case 'v':
1129 {
1130 if (LocaleCompare((char *) keyword,"value") == 0)
1131 {
1132 policy_info->value=AcquirePolicyString(token,1);
1133 break;
1134 }
1135 break;
1136 }
1137 default:
1138 break;
1139 }
1140 }
1141 token=(char *) RelinquishMagickMemory(token);
1142 return(status != 0 ? MagickTrue : MagickFalse);
1143}
1144␌
1145/*
1146%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1147% %
1148% %
1149% %
1150+ P o l i c y C o m p o n e n t G e n e s i s %
1151% %
1152% %
1153% %
1154%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1155%
1156% PolicyComponentGenesis() instantiates the policy component.
1157%
1158% The format of the PolicyComponentGenesis method is:
1159%
1160% MagickBooleanType PolicyComponentGenesis(void)
1161%
1162*/
1163MagickPrivate MagickBooleanType PolicyComponentGenesis(void)
1164{
1165 if (policy_semaphore == (SemaphoreInfo *) NULL)
1166 policy_semaphore=AcquireSemaphoreInfo();
1167 return(MagickTrue);
1168}
1169␌
1170/*
1171%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1172% %
1173% %
1174% %
1175+ P o l i c y C o m p o n e n t T e r m i n u s %
1176% %
1177% %
1178% %
1179%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1180%
1181% PolicyComponentTerminus() destroys the policy component.
1182%
1183% The format of the PolicyComponentTerminus method is:
1184%
1185% PolicyComponentTerminus(void)
1186%
1187*/
1188
1189static void *DestroyPolicyElement(void *policy_info)
1190{
1191 PolicyInfo
1192 *p;
1193
1194 p=(PolicyInfo *) policy_info;
1195 if (p->exempt == MagickFalse)
1196 {
1197 if (p->value != (char *) NULL)
1198 p->value=DestroyString(p->value);
1199 if (p->pattern != (char *) NULL)
1200 p->pattern=DestroyString(p->pattern);
1201 if (p->name != (char *) NULL)
1202 p->name=DestroyString(p->name);
1203 if (p->path != (char *) NULL)
1204 p->path=DestroyString(p->path);
1205 }
1206 p=(PolicyInfo *) RelinquishMagickMemory(p);
1207 return((void *) NULL);
1208}
1209
1210MagickPrivate void PolicyComponentTerminus(void)
1211{
1212 if (policy_semaphore == (SemaphoreInfo *) NULL)
1213 ActivateSemaphoreInfo(&policy_semaphore);
1214 LockSemaphoreInfo(policy_semaphore);
1215 if (policy_cache != (LinkedListInfo *) NULL)
1216 policy_cache=DestroyLinkedList(policy_cache,DestroyPolicyElement);
1217 UnlockSemaphoreInfo(policy_semaphore);
1218 RelinquishSemaphoreInfo(&policy_semaphore);
1219}
1220␌
1221/*
1222%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1223% %
1224% %
1225% %
1226% S e t M a g i c k S e c u r i t y P o l i c y %
1227% %
1228% %
1229% %
1230%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1231%
1232% SetMagickSecurityPolicy() sets or restricts the ImageMagick security policy.
1233% It returns MagickFalse if the policy the policy does not parse.
1234%
1235% The format of the SetMagickSecurityPolicy method is:
1236%
1237% MagickBooleanType SetMagickSecurityPolicy(const char *policy,
1238% ExceptionInfo *exception)
1239%
1240% A description of each parameter follows:
1241%
1242% o policy: the security policy in the XML format.
1243%
1244% o exception: return any errors or warnings in this structure.
1245%
1246*/
1247
1248static MagickBooleanType ValidateSecurityPolicy(const char *policy,
1249 const char *url,ExceptionInfo *exception)
1250{
1251#if defined(MAGICKCORE_XML_DELEGATE)
1252 xmlDocPtr
1253 document;
1254
1255 /*
1256 Parse security policy.
1257 */
1258 document=xmlReadMemory(policy,(int) strlen(policy),url,NULL,
1259 XML_PARSE_NOERROR | XML_PARSE_NOWARNING);
1260 if (document == (xmlDocPtr) NULL)
1261 {
1262 (void) ThrowMagickException(exception,GetMagickModule(),ConfigureError,
1263 "PolicyValidationException","'%s'",url);
1264 return(MagickFalse);
1265 }
1266 xmlFreeDoc(document);
1267#else
1268 (void) policy;
1269 (void) url;
1270 (void) exception;
1271#endif
1272 return(MagickTrue);
1273}
1274
1275MagickExport MagickBooleanType SetMagickSecurityPolicy(const char *policy,
1276 ExceptionInfo *exception)
1277{
1278 MagickBooleanType
1279 status;
1280
1281 LinkedListInfo
1282 *user_policies;
1283
1284 PolicyInfo
1285 *p;
1286
1287 /*
1288 Load user policies.
1289 */
1290 assert(exception != (ExceptionInfo *) NULL);
1291 if (policy == (const char *) NULL)
1292 return(MagickFalse);
1293 if (ValidateSecurityPolicy(policy,PolicyFilename,exception) == MagickFalse)
1294 return(MagickFalse);
1295 status=LoadPolicyCache(policy_cache,policy,"[user-policy]",0,exception);
1296 if (status == MagickFalse)
1297 return(status);
1298 /*
1299 Synchronize user policies.
1300 */
1301 user_policies=NewLinkedList(0);
1302 status=LoadPolicyCache(user_policies,policy,"[user-policy]",0,exception);
1303 if (status == MagickFalse)
1304 {
1305 user_policies=DestroyLinkedList(user_policies,DestroyPolicyElement);
1306 return(MagickFalse);
1307 }
1308 ResetLinkedListIterator(user_policies);
1309 p=(PolicyInfo *) GetNextValueInLinkedList(user_policies);
1310 while (p != (PolicyInfo *) NULL)
1311 {
1312 if ((p->name != (char *) NULL) && (p->value != (char *) NULL))
1313 (void) SetMagickSecurityPolicyValue(p->domain,p->name,p->value,exception);
1314 p=(PolicyInfo *) GetNextValueInLinkedList(user_policies);
1315 }
1316 user_policies=DestroyLinkedList(user_policies,DestroyPolicyElement);
1317 return(status);
1318}
1319␌
1320/*
1321%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1322% %
1323% %
1324% %
1325% S e t M a g i c k S e c u r i t y P o l i c y V a l u e %
1326% %
1327% %
1328% %
1329%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1330%
1331% SetMagickSecurityPolicyValue() sets a value associated with an ImageMagick
1332% security policy. For most policies, the value must be less than any value
1333% set by the security policy configuration file (i.e. policy.xml). It returns
1334% MagickFalse if the policy cannot be modified or if the policy does not parse.
1335%
1336% The format of the SetMagickSecurityPolicyValue method is:
1337%
1338% MagickBooleanType SetMagickSecurityPolicyValue(
1339% const PolicyDomain domain,const char *name,const char *value,
1340% ExceptionInfo *exception)
1341%
1342% A description of each parameter follows:
1343%
1344% o domain: the domain of the policy (e.g. system, resource).
1345%
1346% o name: the name of the policy.
1347%
1348% o value: the value to set the policy to.
1349%
1350% o exception: return any errors or warnings in this structure.
1351%
1352*/
1353MagickExport MagickBooleanType SetMagickSecurityPolicyValue(
1354 const PolicyDomain domain,const char *name,const char *value,
1355 ExceptionInfo *exception)
1356{
1357 magick_unreferenced(exception);
1358 assert(exception != (ExceptionInfo *) NULL);
1359 if ((name == (const char *) NULL) || (value == (const char *) NULL))
1360 return(MagickFalse);
1361 switch (domain)
1362 {
1363 case CachePolicyDomain:
1364 {
1365 if (LocaleCompare(name,"memory-map") == 0)
1366 {
1367 if (LocaleCompare(value,"anonymous") != 0)
1368 return(MagickFalse);
1369 ResetCacheAnonymousMemory();
1370 ResetStreamAnonymousMemory();
1371 return(MagickTrue);
1372 }
1373 break;
1374 }
1375 case ResourcePolicyDomain:
1376 {
1377 ssize_t
1378 type;
1379
1380 type=ParseCommandOption(MagickResourceOptions,MagickFalse,name);
1381 if (type >= 0)
1382 {
1383 MagickSizeType
1384 limit;
1385
1386 limit=MagickResourceInfinity;
1387 if (LocaleCompare("unlimited",value) != 0)
1388 limit=StringToMagickSizeType(value,100.0);
1389 if ((ResourceType) type == TimeResource)
1390 limit=(MagickSizeType) ParseMagickTimeToLive(value);
1391 return(SetMagickResourceLimit((ResourceType) type,limit));
1392 }
1393 break;
1394 }
1395 case SystemPolicyDomain:
1396 {
1397 if (LocaleCompare(name,"max-memory-request") == 0)
1398 {
1399 MagickSizeType
1400 limit;
1401
1402 limit=MagickResourceInfinity;
1403 if (LocaleCompare("unlimited",value) != 0)
1404 limit=StringToMagickSizeType(value,100.0);
1405 SetMaxMemoryRequest(limit);
1406 return(MagickTrue);
1407 }
1408 if (LocaleCompare(name,"max-profile-size") == 0)
1409 {
1410 MagickSizeType
1411 limit;
1412
1413 limit=MagickResourceInfinity;
1414 if (LocaleCompare("unlimited",value) != 0)
1415 limit=StringToMagickSizeType(value,100.0);
1416 SetMaxProfileSize(limit);
1417 return(MagickTrue);
1418 }
1419 if (LocaleCompare(name,"memory-map") == 0)
1420 {
1421 if (LocaleCompare(value,"anonymous") != 0)
1422 return(MagickFalse);
1423 ResetVirtualAnonymousMemory();
1424 return(MagickTrue);
1425 }
1426 if (LocaleCompare(name,"precision") == 0)
1427 {
1428 int
1429 limit;
1430
1431 limit=StringToInteger(value);
1432 SetMagickPrecision(limit);
1433 return(MagickTrue);
1434 }
1435 break;
1436 }
1437 case CoderPolicyDomain:
1438 case DelegatePolicyDomain:
1439 case FilterPolicyDomain:
1440 case ModulePolicyDomain:
1441 case PathPolicyDomain:
1442 default:
1443 break;
1444 }
1445 return(MagickFalse);
1446}
_PolicyInfo
Definition policy.c:82
_PolicyMapInfo
Definition policy.c:110