2 * Server-side file mapping management
4 * Copyright (C) 1999 Alexandre Julliard
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.
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.
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
22 #include "wine/port.h"
29 #ifdef HAVE_SYS_MMAN_H
30 # include <sys/mman.h>
35 #define WIN32_NO_STATUS
47 /* list of memory ranges, used to store committed info */
50 struct object obj
; /* object header */
51 unsigned int count
; /* number of used ranges */
52 unsigned int max
; /* number of allocated ranges */
60 static void ranges_dump( struct object
*obj
, int verbose
);
61 static void ranges_destroy( struct object
*obj
);
63 static const struct object_ops ranges_ops
=
65 sizeof(struct ranges
), /* size */
67 ranges_dump
, /* dump */
68 no_add_queue
, /* add_queue */
69 NULL
, /* remove_queue */
72 no_signal
, /* signal */
73 no_get_fd
, /* get_fd */
74 default_map_access
, /* map_access */
75 default_get_sd
, /* get_sd */
76 default_set_sd
, /* set_sd */
77 no_get_full_name
, /* get_full_name */
78 no_lookup_name
, /* lookup_name */
79 no_link_name
, /* link_name */
80 NULL
, /* unlink_name */
81 no_open_file
, /* open_file */
82 no_kernel_obj_list
, /* get_kernel_obj_list */
83 no_close_handle
, /* close_handle */
84 ranges_destroy
/* destroy */
87 /* file backing the shared sections of a PE image mapping */
90 struct object obj
; /* object header */
91 struct fd
*fd
; /* file descriptor of the mapped PE file */
92 struct file
*file
; /* temp file holding the shared data */
93 struct list entry
; /* entry in global shared maps list */
96 static void shared_map_dump( struct object
*obj
, int verbose
);
97 static void shared_map_destroy( struct object
*obj
);
99 static const struct object_ops shared_map_ops
=
101 sizeof(struct shared_map
), /* size */
103 shared_map_dump
, /* dump */
104 no_add_queue
, /* add_queue */
105 NULL
, /* remove_queue */
107 NULL
, /* satisfied */
108 no_signal
, /* signal */
109 no_get_fd
, /* get_fd */
110 default_map_access
, /* map_access */
111 default_get_sd
, /* get_sd */
112 default_set_sd
, /* set_sd */
113 no_get_full_name
, /* get_full_name */
114 no_lookup_name
, /* lookup_name */
115 no_link_name
, /* link_name */
116 NULL
, /* unlink_name */
117 no_open_file
, /* open_file */
118 no_kernel_obj_list
, /* get_kernel_obj_list */
119 no_close_handle
, /* close_handle */
120 shared_map_destroy
/* destroy */
123 static struct list shared_map_list
= LIST_INIT( shared_map_list
);
125 /* memory view mapped in client address space */
128 struct list entry
; /* entry in per-process view list */
129 struct fd
*fd
; /* fd for mapped file */
130 struct ranges
*committed
; /* list of committed ranges in this mapping */
131 struct shared_map
*shared
; /* temp file for shared PE mapping */
132 pe_image_info_t image
; /* image info (for PE image mapping) */
133 unsigned int flags
; /* SEC_* flags */
134 client_ptr_t base
; /* view base address (in process addr space) */
135 mem_size_t size
; /* view size */
136 file_pos_t start
; /* start offset in mapping */
138 WCHAR name
[1]; /* filename for .so dll image views */
142 static const WCHAR mapping_name
[] = {'S','e','c','t','i','o','n'};
144 struct type_descr mapping_type
=
146 { mapping_name
, sizeof(mapping_name
) }, /* name */
147 SECTION_ALL_ACCESS
| SYNCHRONIZE
, /* valid_access */
149 STANDARD_RIGHTS_READ
| SECTION_QUERY
| SECTION_MAP_READ
,
150 STANDARD_RIGHTS_WRITE
| SECTION_MAP_WRITE
,
151 STANDARD_RIGHTS_EXECUTE
| SECTION_MAP_EXECUTE
,
158 struct object obj
; /* object header */
159 mem_size_t size
; /* mapping size */
160 unsigned int flags
; /* SEC_* flags */
161 struct fd
*fd
; /* fd for mapped file */
162 pe_image_info_t image
; /* image info (for PE image mapping) */
163 struct ranges
*committed
; /* list of committed ranges in this mapping */
164 struct shared_map
*shared
; /* temp file for shared PE mapping */
167 static void mapping_dump( struct object
*obj
, int verbose
);
168 static struct fd
*mapping_get_fd( struct object
*obj
);
169 static void mapping_destroy( struct object
*obj
);
170 static enum server_fd_type
mapping_get_fd_type( struct fd
*fd
);
172 static const struct object_ops mapping_ops
=
174 sizeof(struct mapping
), /* size */
175 &mapping_type
, /* type */
176 mapping_dump
, /* dump */
177 no_add_queue
, /* add_queue */
178 NULL
, /* remove_queue */
180 NULL
, /* satisfied */
181 no_signal
, /* signal */
182 mapping_get_fd
, /* get_fd */
183 default_map_access
, /* map_access */
184 default_get_sd
, /* get_sd */
185 default_set_sd
, /* set_sd */
186 default_get_full_name
, /* get_full_name */
187 no_lookup_name
, /* lookup_name */
188 directory_link_name
, /* link_name */
189 default_unlink_name
, /* unlink_name */
190 no_open_file
, /* open_file */
191 no_kernel_obj_list
, /* get_kernel_obj_list */
192 no_close_handle
, /* close_handle */
193 mapping_destroy
/* destroy */
196 static const struct fd_ops mapping_fd_ops
=
198 default_fd_get_poll_events
, /* get_poll_events */
199 default_poll_event
, /* poll_event */
200 mapping_get_fd_type
, /* get_fd_type */
201 no_fd_read
, /* read */
202 no_fd_write
, /* write */
203 no_fd_flush
, /* flush */
204 no_fd_get_file_info
, /* get_file_info */
205 no_fd_get_volume_info
, /* get_volume_info */
206 no_fd_ioctl
, /* ioctl */
207 no_fd_queue_async
, /* queue_async */
208 default_fd_reselect_async
/* reselect_async */
211 static size_t page_mask
;
213 #define ROUND_SIZE(size) (((size) + page_mask) & ~page_mask)
216 static void ranges_dump( struct object
*obj
, int verbose
)
218 struct ranges
*ranges
= (struct ranges
*)obj
;
219 fprintf( stderr
, "Memory ranges count=%u\n", ranges
->count
);
222 static void ranges_destroy( struct object
*obj
)
224 struct ranges
*ranges
= (struct ranges
*)obj
;
225 free( ranges
->ranges
);
228 static void shared_map_dump( struct object
*obj
, int verbose
)
230 struct shared_map
*shared
= (struct shared_map
*)obj
;
231 fprintf( stderr
, "Shared mapping fd=%p file=%p\n", shared
->fd
, shared
->file
);
234 static void shared_map_destroy( struct object
*obj
)
236 struct shared_map
*shared
= (struct shared_map
*)obj
;
238 release_object( shared
->fd
);
239 release_object( shared
->file
);
240 list_remove( &shared
->entry
);
243 /* extend a file beyond the current end of file */
244 static int grow_file( int unix_fd
, file_pos_t new_size
)
246 static const char zero
;
247 off_t size
= new_size
;
249 if (sizeof(new_size
) > sizeof(size
) && size
!= new_size
)
251 set_error( STATUS_INVALID_PARAMETER
);
254 /* extend the file one byte beyond the requested size and then truncate it */
255 /* this should work around ftruncate implementations that can't extend files */
256 if (pwrite( unix_fd
, &zero
, 1, size
) != -1)
258 ftruncate( unix_fd
, size
);
265 /* check if the current directory allows exec mappings */
266 static int check_current_dir_for_exec(void)
269 char tmpfn
[] = "anonmap.XXXXXX";
270 void *ret
= MAP_FAILED
;
272 fd
= mkstemps( tmpfn
, 0 );
273 if (fd
== -1) return 0;
274 if (grow_file( fd
, 1 ))
276 ret
= mmap( NULL
, get_page_size(), PROT_READ
| PROT_EXEC
, MAP_PRIVATE
, fd
, 0 );
277 if (ret
!= MAP_FAILED
) munmap( ret
, get_page_size() );
281 return (ret
!= MAP_FAILED
);
284 /* create a temp file for anonymous mappings */
285 static int create_temp_file( file_pos_t size
)
287 static int temp_dir_fd
= -1;
288 char tmpfn
[] = "anonmap.XXXXXX";
291 if (temp_dir_fd
== -1)
293 temp_dir_fd
= server_dir_fd
;
294 if (!check_current_dir_for_exec())
296 /* the server dir is noexec, try the config dir instead */
297 fchdir( config_dir_fd
);
298 if (check_current_dir_for_exec())
299 temp_dir_fd
= config_dir_fd
;
300 else /* neither works, fall back to server dir */
301 fchdir( server_dir_fd
);
304 else if (temp_dir_fd
!= server_dir_fd
) fchdir( temp_dir_fd
);
306 fd
= mkstemps( tmpfn
, 0 );
309 if (!grow_file( fd
, size
))
316 else file_set_error();
318 if (temp_dir_fd
!= server_dir_fd
) fchdir( server_dir_fd
);
322 /* find a memory view from its base address */
323 struct memory_view
*find_mapped_view( struct process
*process
, client_ptr_t base
)
325 struct memory_view
*view
;
327 LIST_FOR_EACH_ENTRY( view
, &process
->views
, struct memory_view
, entry
)
328 if (view
->base
== base
) return view
;
330 set_error( STATUS_NOT_MAPPED_VIEW
);
334 /* find a memory view from any address inside it */
335 static struct memory_view
*find_mapped_addr( struct process
*process
, client_ptr_t addr
)
337 struct memory_view
*view
;
339 LIST_FOR_EACH_ENTRY( view
, &process
->views
, struct memory_view
, entry
)
340 if (addr
>= view
->base
&& addr
< view
->base
+ view
->size
) return view
;
342 set_error( STATUS_NOT_MAPPED_VIEW
);
346 /* get the main exe memory view */
347 struct memory_view
*get_exe_view( struct process
*process
)
349 return LIST_ENTRY( list_head( &process
->views
), struct memory_view
, entry
);
352 static void set_process_machine( struct process
*process
, struct memory_view
*view
)
354 unsigned short machine
= view
->image
.machine
;
356 if (machine
== IMAGE_FILE_MACHINE_I386
&& (view
->image
.image_flags
& IMAGE_FLAGS_ComPlusNativeReady
))
358 if (is_machine_supported( IMAGE_FILE_MACHINE_AMD64
)) machine
= IMAGE_FILE_MACHINE_AMD64
;
359 else if (is_machine_supported( IMAGE_FILE_MACHINE_ARM64
)) machine
= IMAGE_FILE_MACHINE_ARM64
;
361 process
->machine
= machine
;
364 /* add a view to the process list */
365 static void add_process_view( struct thread
*thread
, struct memory_view
*view
)
367 struct process
*process
= thread
->process
;
368 struct unicode_str name
;
370 if (view
->flags
& SEC_IMAGE
)
372 if (is_process_init_done( process
))
373 generate_debug_event( thread
, DbgLoadDllStateChange
, view
);
374 else if (!(view
->image
.image_charact
& IMAGE_FILE_DLL
))
377 set_process_machine( process
, view
);
378 list_add_head( &process
->views
, &view
->entry
);
379 if (get_view_nt_name( view
, &name
) && (process
->image
= memdup( name
.str
, name
.len
)))
380 process
->imagelen
= name
.len
;
384 list_add_tail( &process
->views
, &view
->entry
);
387 static void free_memory_view( struct memory_view
*view
)
389 if (view
->fd
) release_object( view
->fd
);
390 if (view
->committed
) release_object( view
->committed
);
391 if (view
->shared
) release_object( view
->shared
);
392 list_remove( &view
->entry
);
396 /* free all mapped views at process exit */
397 void free_mapped_views( struct process
*process
)
401 while ((ptr
= list_head( &process
->views
)))
402 free_memory_view( LIST_ENTRY( ptr
, struct memory_view
, entry
));
405 /* find the shared PE mapping for a given mapping */
406 static struct shared_map
*get_shared_file( struct fd
*fd
)
408 struct shared_map
*ptr
;
410 LIST_FOR_EACH_ENTRY( ptr
, &shared_map_list
, struct shared_map
, entry
)
411 if (is_same_file_fd( ptr
->fd
, fd
))
412 return (struct shared_map
*)grab_object( ptr
);
416 /* return the size of the memory mapping and file range of a given section */
417 static inline void get_section_sizes( const IMAGE_SECTION_HEADER
*sec
, size_t *map_size
,
418 off_t
*file_start
, size_t *file_size
)
420 static const unsigned int sector_align
= 0x1ff;
422 if (!sec
->Misc
.VirtualSize
) *map_size
= ROUND_SIZE( sec
->SizeOfRawData
);
423 else *map_size
= ROUND_SIZE( sec
->Misc
.VirtualSize
);
425 *file_start
= sec
->PointerToRawData
& ~sector_align
;
426 *file_size
= (sec
->SizeOfRawData
+ (sec
->PointerToRawData
& sector_align
) + sector_align
) & ~sector_align
;
427 if (*file_size
> *map_size
) *file_size
= *map_size
;
430 /* add a range to the committed list */
431 static void add_committed_range( struct memory_view
*view
, file_pos_t start
, file_pos_t end
)
434 struct ranges
*committed
= view
->committed
;
435 struct range
*ranges
;
437 if ((start
& page_mask
) || (end
& page_mask
) ||
438 start
>= view
->size
|| end
>= view
->size
||
441 set_error( STATUS_INVALID_PARAMETER
);
445 if (!committed
) return; /* everything committed already */
447 start
+= view
->start
;
450 for (i
= 0, ranges
= committed
->ranges
; i
< committed
->count
; i
++)
452 if (ranges
[i
].start
> end
) break;
453 if (ranges
[i
].end
< start
) continue;
454 if (ranges
[i
].start
> start
) ranges
[i
].start
= start
; /* extend downwards */
455 if (ranges
[i
].end
< end
) /* extend upwards and maybe merge with next */
457 for (j
= i
+ 1; j
< committed
->count
; j
++)
459 if (ranges
[j
].start
> end
) break;
460 if (ranges
[j
].end
> end
) end
= ranges
[j
].end
;
464 memmove( &ranges
[i
+ 1], &ranges
[j
], (committed
->count
- j
) * sizeof(*ranges
) );
465 committed
->count
-= j
- (i
+ 1);
472 /* now add a new range */
474 if (committed
->count
== committed
->max
)
476 unsigned int new_size
= committed
->max
* 2;
477 struct range
*new_ptr
= realloc( committed
->ranges
, new_size
* sizeof(*new_ptr
) );
478 if (!new_ptr
) return;
479 committed
->max
= new_size
;
480 ranges
= committed
->ranges
= new_ptr
;
482 memmove( &ranges
[i
+ 1], &ranges
[i
], (committed
->count
- i
) * sizeof(*ranges
) );
483 ranges
[i
].start
= start
;
488 /* find the range containing start and return whether it's committed */
489 static int find_committed_range( struct memory_view
*view
, file_pos_t start
, mem_size_t
*size
)
492 struct ranges
*committed
= view
->committed
;
493 struct range
*ranges
;
495 if ((start
& page_mask
) || start
>= view
->size
)
497 set_error( STATUS_INVALID_PARAMETER
);
500 if (!committed
) /* everything is committed */
502 *size
= view
->size
- start
;
505 for (i
= 0, ranges
= committed
->ranges
; i
< committed
->count
; i
++)
507 if (ranges
[i
].start
> view
->start
+ start
)
509 *size
= min( ranges
[i
].start
, view
->start
+ view
->size
) - (view
->start
+ start
);
512 if (ranges
[i
].end
> view
->start
+ start
)
514 *size
= min( ranges
[i
].end
, view
->start
+ view
->size
) - (view
->start
+ start
);
518 *size
= view
->size
- start
;
522 /* allocate and fill the temp file for a shared PE image mapping */
523 static int build_shared_mapping( struct mapping
*mapping
, int fd
,
524 IMAGE_SECTION_HEADER
*sec
, unsigned int nb_sec
)
526 struct shared_map
*shared
;
529 mem_size_t total_size
;
530 size_t file_size
, map_size
, max_size
;
531 off_t shared_pos
, read_pos
, write_pos
;
536 /* compute the total size of the shared mapping */
538 total_size
= max_size
= 0;
539 for (i
= 0; i
< nb_sec
; i
++)
541 if ((sec
[i
].Characteristics
& IMAGE_SCN_MEM_SHARED
) &&
542 (sec
[i
].Characteristics
& IMAGE_SCN_MEM_WRITE
))
544 get_section_sizes( &sec
[i
], &map_size
, &read_pos
, &file_size
);
545 if (file_size
> max_size
) max_size
= file_size
;
546 total_size
+= map_size
;
549 if (!total_size
) return 1; /* nothing to do */
551 if ((mapping
->shared
= get_shared_file( mapping
->fd
))) return 1;
553 /* create a temp file for the mapping */
555 if ((shared_fd
= create_temp_file( total_size
)) == -1) return 0;
556 if (!(file
= create_file_for_fd( shared_fd
, FILE_GENERIC_READ
|FILE_GENERIC_WRITE
, 0 ))) return 0;
558 if (!(buffer
= malloc( max_size
))) goto error
;
560 /* copy the shared sections data into the temp file */
563 for (i
= 0; i
< nb_sec
; i
++)
565 if (!(sec
[i
].Characteristics
& IMAGE_SCN_MEM_SHARED
)) continue;
566 if (!(sec
[i
].Characteristics
& IMAGE_SCN_MEM_WRITE
)) continue;
567 get_section_sizes( &sec
[i
], &map_size
, &read_pos
, &file_size
);
568 write_pos
= shared_pos
;
569 shared_pos
+= map_size
;
570 if (!sec
[i
].PointerToRawData
|| !file_size
) continue;
574 long res
= pread( fd
, buffer
+ file_size
- toread
, toread
, read_pos
);
575 if (!res
&& toread
< 0x200) /* partial sector at EOF is not an error */
580 if (res
<= 0) goto error
;
584 if (pwrite( shared_fd
, buffer
, file_size
, write_pos
) != file_size
) goto error
;
587 if (!(shared
= alloc_object( &shared_map_ops
))) goto error
;
588 shared
->fd
= (struct fd
*)grab_object( mapping
->fd
);
590 list_add_head( &shared_map_list
, &shared
->entry
);
591 mapping
->shared
= shared
;
596 release_object( file
);
601 /* load the CLR header from its section */
602 static int load_clr_header( IMAGE_COR20_HEADER
*hdr
, size_t va
, size_t size
, int unix_fd
,
603 IMAGE_SECTION_HEADER
*sec
, unsigned int nb_sec
)
606 size_t map_size
, file_size
;
610 if (!va
|| !size
) return 0;
612 for (i
= 0; i
< nb_sec
; i
++)
614 if (va
< sec
[i
].VirtualAddress
) continue;
615 if (sec
[i
].Misc
.VirtualSize
&& va
- sec
[i
].VirtualAddress
>= sec
[i
].Misc
.VirtualSize
) continue;
616 get_section_sizes( &sec
[i
], &map_size
, &file_start
, &file_size
);
617 if (size
>= map_size
) continue;
618 if (va
- sec
[i
].VirtualAddress
>= map_size
- size
) continue;
619 file_size
= min( file_size
, map_size
);
620 size
= min( size
, sizeof(*hdr
) );
621 ret
= pread( unix_fd
, hdr
, min( size
, file_size
), file_start
+ va
- sec
[i
].VirtualAddress
);
623 if (ret
< sizeof(*hdr
)) memset( (char *)hdr
+ ret
, 0, sizeof(*hdr
) - ret
);
624 return (hdr
->MajorRuntimeVersion
> COR_VERSION_MAJOR_V2
||
625 (hdr
->MajorRuntimeVersion
== COR_VERSION_MAJOR_V2
&&
626 hdr
->MinorRuntimeVersion
>= COR_VERSION_MINOR
));
631 /* retrieve the mapping parameters for an executable (PE) image */
632 static unsigned int get_image_params( struct mapping
*mapping
, file_pos_t file_size
, int unix_fd
)
634 static const char builtin_signature
[] = "Wine builtin DLL";
635 static const char fakedll_signature
[] = "Wine placeholder DLL";
637 IMAGE_COR20_HEADER clr
;
638 IMAGE_SECTION_HEADER sec
[96];
641 IMAGE_DOS_HEADER dos
;
647 IMAGE_FILE_HEADER FileHeader
;
650 IMAGE_OPTIONAL_HEADER32 hdr32
;
651 IMAGE_OPTIONAL_HEADER64 hdr64
;
656 size_t mz_size
, clr_va
, clr_size
;
659 /* load the headers */
661 if (!file_size
) return STATUS_INVALID_FILE_FOR_SECTION
;
662 size
= pread( unix_fd
, &mz
, sizeof(mz
), 0 );
663 if (size
< sizeof(mz
.dos
)) return STATUS_INVALID_IMAGE_NOT_MZ
;
664 if (mz
.dos
.e_magic
!= IMAGE_DOS_SIGNATURE
) return STATUS_INVALID_IMAGE_NOT_MZ
;
666 pos
= mz
.dos
.e_lfanew
;
668 size
= pread( unix_fd
, &nt
, sizeof(nt
), pos
);
669 if (size
< sizeof(nt
.Signature
) + sizeof(nt
.FileHeader
)) return STATUS_INVALID_IMAGE_PROTECT
;
670 /* zero out Optional header in the case it's not present or partial */
671 opt_size
= max( nt
.FileHeader
.SizeOfOptionalHeader
, offsetof( IMAGE_OPTIONAL_HEADER32
, CheckSum
));
672 size
= min( size
, sizeof(nt
.Signature
) + sizeof(nt
.FileHeader
) + opt_size
);
673 if (size
< sizeof(nt
)) memset( (char *)&nt
+ size
, 0, sizeof(nt
) - size
);
674 if (nt
.Signature
!= IMAGE_NT_SIGNATURE
)
676 IMAGE_OS2_HEADER
*os2
= (IMAGE_OS2_HEADER
*)&nt
;
677 if (os2
->ne_magic
!= IMAGE_OS2_SIGNATURE
) return STATUS_INVALID_IMAGE_PROTECT
;
678 if (os2
->ne_exetyp
== 2) return STATUS_INVALID_IMAGE_WIN_16
;
679 if (os2
->ne_exetyp
== 5) return STATUS_INVALID_IMAGE_PROTECT
;
680 return STATUS_INVALID_IMAGE_NE_FORMAT
;
683 switch (nt
.opt
.hdr32
.Magic
)
685 case IMAGE_NT_OPTIONAL_HDR32_MAGIC
:
686 if (!is_machine_32bit( nt
.FileHeader
.Machine
)) return STATUS_INVALID_IMAGE_FORMAT
;
687 if (!is_machine_supported( nt
.FileHeader
.Machine
)) return STATUS_INVALID_IMAGE_FORMAT
;
689 clr_va
= nt
.opt
.hdr32
.DataDirectory
[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
].VirtualAddress
;
690 clr_size
= nt
.opt
.hdr32
.DataDirectory
[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
].Size
;
692 mapping
->image
.base
= nt
.opt
.hdr32
.ImageBase
;
693 mapping
->image
.entry_point
= nt
.opt
.hdr32
.ImageBase
+ nt
.opt
.hdr32
.AddressOfEntryPoint
;
694 mapping
->image
.map_size
= ROUND_SIZE( nt
.opt
.hdr32
.SizeOfImage
);
695 mapping
->image
.stack_size
= nt
.opt
.hdr32
.SizeOfStackReserve
;
696 mapping
->image
.stack_commit
= nt
.opt
.hdr32
.SizeOfStackCommit
;
697 mapping
->image
.subsystem
= nt
.opt
.hdr32
.Subsystem
;
698 mapping
->image
.subsystem_minor
= nt
.opt
.hdr32
.MinorSubsystemVersion
;
699 mapping
->image
.subsystem_major
= nt
.opt
.hdr32
.MajorSubsystemVersion
;
700 mapping
->image
.osversion_minor
= nt
.opt
.hdr32
.MinorOperatingSystemVersion
;
701 mapping
->image
.osversion_major
= nt
.opt
.hdr32
.MajorOperatingSystemVersion
;
702 mapping
->image
.dll_charact
= nt
.opt
.hdr32
.DllCharacteristics
;
703 mapping
->image
.contains_code
= (nt
.opt
.hdr32
.SizeOfCode
||
704 nt
.opt
.hdr32
.AddressOfEntryPoint
||
705 nt
.opt
.hdr32
.SectionAlignment
& page_mask
);
706 mapping
->image
.header_size
= nt
.opt
.hdr32
.SizeOfHeaders
;
707 mapping
->image
.checksum
= nt
.opt
.hdr32
.CheckSum
;
708 mapping
->image
.image_flags
= 0;
709 if (nt
.opt
.hdr32
.SectionAlignment
& page_mask
)
710 mapping
->image
.image_flags
|= IMAGE_FLAGS_ImageMappedFlat
;
711 if ((nt
.opt
.hdr32
.DllCharacteristics
& IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
) &&
712 mapping
->image
.contains_code
&& !(clr_va
&& clr_size
))
713 mapping
->image
.image_flags
|= IMAGE_FLAGS_ImageDynamicallyRelocated
;
716 case IMAGE_NT_OPTIONAL_HDR64_MAGIC
:
717 if (!is_machine_64bit( supported_machines
[0] )) return STATUS_INVALID_IMAGE_WIN_64
;
718 if (!is_machine_64bit( nt
.FileHeader
.Machine
)) return STATUS_INVALID_IMAGE_FORMAT
;
719 if (!is_machine_supported( nt
.FileHeader
.Machine
)) return STATUS_INVALID_IMAGE_FORMAT
;
721 clr_va
= nt
.opt
.hdr64
.DataDirectory
[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
].VirtualAddress
;
722 clr_size
= nt
.opt
.hdr64
.DataDirectory
[IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR
].Size
;
724 mapping
->image
.base
= nt
.opt
.hdr64
.ImageBase
;
725 mapping
->image
.entry_point
= nt
.opt
.hdr64
.ImageBase
+ nt
.opt
.hdr64
.AddressOfEntryPoint
;
726 mapping
->image
.map_size
= ROUND_SIZE( nt
.opt
.hdr64
.SizeOfImage
);
727 mapping
->image
.stack_size
= nt
.opt
.hdr64
.SizeOfStackReserve
;
728 mapping
->image
.stack_commit
= nt
.opt
.hdr64
.SizeOfStackCommit
;
729 mapping
->image
.subsystem
= nt
.opt
.hdr64
.Subsystem
;
730 mapping
->image
.subsystem_minor
= nt
.opt
.hdr64
.MinorSubsystemVersion
;
731 mapping
->image
.subsystem_major
= nt
.opt
.hdr64
.MajorSubsystemVersion
;
732 mapping
->image
.osversion_minor
= nt
.opt
.hdr64
.MinorOperatingSystemVersion
;
733 mapping
->image
.osversion_major
= nt
.opt
.hdr64
.MajorOperatingSystemVersion
;
734 mapping
->image
.dll_charact
= nt
.opt
.hdr64
.DllCharacteristics
;
735 mapping
->image
.contains_code
= (nt
.opt
.hdr64
.SizeOfCode
||
736 nt
.opt
.hdr64
.AddressOfEntryPoint
||
737 nt
.opt
.hdr64
.SectionAlignment
& page_mask
);
738 mapping
->image
.header_size
= nt
.opt
.hdr64
.SizeOfHeaders
;
739 mapping
->image
.checksum
= nt
.opt
.hdr64
.CheckSum
;
740 mapping
->image
.image_flags
= 0;
741 if (nt
.opt
.hdr64
.SectionAlignment
& page_mask
)
742 mapping
->image
.image_flags
|= IMAGE_FLAGS_ImageMappedFlat
;
743 if ((nt
.opt
.hdr64
.DllCharacteristics
& IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
) &&
744 mapping
->image
.contains_code
&& !(clr_va
&& clr_size
))
745 mapping
->image
.image_flags
|= IMAGE_FLAGS_ImageDynamicallyRelocated
;
749 return STATUS_INVALID_IMAGE_FORMAT
;
752 mapping
->image
.image_charact
= nt
.FileHeader
.Characteristics
;
753 mapping
->image
.machine
= nt
.FileHeader
.Machine
;
754 mapping
->image
.dbg_offset
= nt
.FileHeader
.PointerToSymbolTable
;
755 mapping
->image
.dbg_size
= nt
.FileHeader
.NumberOfSymbols
;
756 mapping
->image
.zerobits
= 0; /* FIXME */
757 mapping
->image
.file_size
= file_size
;
758 mapping
->image
.loader_flags
= clr_va
&& clr_size
;
759 if (mz_size
== sizeof(mz
) && !memcmp( mz
.buffer
, builtin_signature
, sizeof(builtin_signature
) ))
760 mapping
->image
.image_flags
|= IMAGE_FLAGS_WineBuiltin
;
761 else if (mz_size
== sizeof(mz
) && !memcmp( mz
.buffer
, fakedll_signature
, sizeof(fakedll_signature
) ))
762 mapping
->image
.image_flags
|= IMAGE_FLAGS_WineFakeDll
;
764 /* load the section headers */
766 pos
+= sizeof(nt
.Signature
) + sizeof(nt
.FileHeader
) + nt
.FileHeader
.SizeOfOptionalHeader
;
767 if (nt
.FileHeader
.NumberOfSections
> ARRAY_SIZE( sec
)) return STATUS_INVALID_IMAGE_FORMAT
;
768 size
= sizeof(*sec
) * nt
.FileHeader
.NumberOfSections
;
769 if (!mapping
->size
) mapping
->size
= mapping
->image
.map_size
;
770 else if (mapping
->size
> mapping
->image
.map_size
) return STATUS_SECTION_TOO_BIG
;
771 if (pos
+ size
> mapping
->image
.map_size
) return STATUS_INVALID_FILE_FOR_SECTION
;
772 if (pos
+ size
> mapping
->image
.header_size
) mapping
->image
.header_size
= pos
+ size
;
773 if (pread( unix_fd
, sec
, size
, pos
) != size
) return STATUS_INVALID_FILE_FOR_SECTION
;
775 for (i
= 0; i
< nt
.FileHeader
.NumberOfSections
&& !mapping
->image
.contains_code
; i
++)
776 if (sec
[i
].Characteristics
& IMAGE_SCN_MEM_EXECUTE
) mapping
->image
.contains_code
= 1;
778 if (load_clr_header( &clr
, clr_va
, clr_size
, unix_fd
, sec
, nt
.FileHeader
.NumberOfSections
) &&
779 (clr
.Flags
& COMIMAGE_FLAGS_ILONLY
))
781 mapping
->image
.image_flags
|= IMAGE_FLAGS_ComPlusILOnly
;
782 if (nt
.opt
.hdr32
.Magic
== IMAGE_NT_OPTIONAL_HDR32_MAGIC
)
784 if (!(clr
.Flags
& COMIMAGE_FLAGS_32BITREQUIRED
))
785 mapping
->image
.image_flags
|= IMAGE_FLAGS_ComPlusNativeReady
;
786 if (clr
.Flags
& COMIMAGE_FLAGS_32BITPREFERRED
)
787 mapping
->image
.image_flags
|= IMAGE_FLAGS_ComPlusPrefer32bit
;
791 if (!build_shared_mapping( mapping
, unix_fd
, sec
, nt
.FileHeader
.NumberOfSections
))
792 return STATUS_INVALID_FILE_FOR_SECTION
;
794 return STATUS_SUCCESS
;
797 static struct ranges
*create_ranges(void)
799 struct ranges
*ranges
= alloc_object( &ranges_ops
);
801 if (!ranges
) return NULL
;
804 if (!(ranges
->ranges
= mem_alloc( ranges
->max
* sizeof(*ranges
->ranges
) )))
806 release_object( ranges
);
812 static unsigned int get_mapping_flags( obj_handle_t handle
, unsigned int flags
)
814 switch (flags
& (SEC_IMAGE
| SEC_RESERVE
| SEC_COMMIT
| SEC_FILE
))
817 if (flags
& (SEC_WRITECOMBINE
| SEC_LARGE_PAGES
)) break;
818 if (handle
) return SEC_FILE
| SEC_IMAGE
;
819 set_error( STATUS_INVALID_FILE_FOR_SECTION
);
822 if (!handle
) return flags
;
825 if (flags
& SEC_LARGE_PAGES
) break;
826 if (handle
) return SEC_FILE
| (flags
& (SEC_NOCACHE
| SEC_WRITECOMBINE
));
829 set_error( STATUS_INVALID_PARAMETER
);
834 static struct mapping
*create_mapping( struct object
*root
, const struct unicode_str
*name
,
835 unsigned int attr
, mem_size_t size
, unsigned int flags
,
836 obj_handle_t handle
, unsigned int file_access
,
837 const struct security_descriptor
*sd
)
839 struct mapping
*mapping
;
845 if (!page_mask
) page_mask
= sysconf( _SC_PAGESIZE
) - 1;
847 if (!(mapping
= create_named_object( root
, &mapping_ops
, name
, attr
, sd
)))
849 if (get_error() == STATUS_OBJECT_NAME_EXISTS
)
850 return mapping
; /* Nothing else to do */
852 mapping
->size
= size
;
854 mapping
->shared
= NULL
;
855 mapping
->committed
= NULL
;
857 if (!(mapping
->flags
= get_mapping_flags( handle
, flags
))) goto error
;
861 const unsigned int sharing
= FILE_SHARE_READ
| FILE_SHARE_WRITE
| FILE_SHARE_DELETE
;
862 unsigned int mapping_access
= FILE_MAPPING_ACCESS
;
864 if (!(file
= get_file_obj( current
->process
, handle
, file_access
))) goto error
;
865 fd
= get_obj_fd( (struct object
*)file
);
867 /* file sharing rules for mappings are different so we use magic the access rights */
868 if (flags
& SEC_IMAGE
) mapping_access
|= FILE_MAPPING_IMAGE
;
869 else if (file_access
& FILE_WRITE_DATA
) mapping_access
|= FILE_MAPPING_WRITE
;
871 if (!(mapping
->fd
= get_fd_object_for_mapping( fd
, mapping_access
, sharing
)))
873 mapping
->fd
= dup_fd_object( fd
, mapping_access
, sharing
, FILE_SYNCHRONOUS_IO_NONALERT
);
874 if (mapping
->fd
) set_fd_user( mapping
->fd
, &mapping_fd_ops
, NULL
);
876 release_object( file
);
877 release_object( fd
);
878 if (!mapping
->fd
) goto error
;
880 if ((unix_fd
= get_unix_fd( mapping
->fd
)) == -1) goto error
;
881 if (fstat( unix_fd
, &st
) == -1)
886 if (flags
& SEC_IMAGE
)
888 unsigned int err
= get_image_params( mapping
, st
.st_size
, unix_fd
);
889 if (!err
) return mapping
;
895 if (!(mapping
->size
= st
.st_size
))
897 set_error( STATUS_MAPPED_FILE_SIZE_ZERO
);
901 else if (st
.st_size
< mapping
->size
)
903 if (!(file_access
& FILE_WRITE_DATA
))
905 set_error( STATUS_SECTION_TOO_BIG
);
908 if (!grow_file( unix_fd
, mapping
->size
)) goto error
;
911 else /* Anonymous mapping (no associated file) */
915 set_error( STATUS_INVALID_PARAMETER
);
918 if ((flags
& SEC_RESERVE
) && !(mapping
->committed
= create_ranges())) goto error
;
919 mapping
->size
= (mapping
->size
+ page_mask
) & ~((mem_size_t
)page_mask
);
920 if ((unix_fd
= create_temp_file( mapping
->size
)) == -1) goto error
;
921 if (!(mapping
->fd
= create_anonymous_fd( &mapping_fd_ops
, unix_fd
, &mapping
->obj
,
922 FILE_SYNCHRONOUS_IO_NONALERT
))) goto error
;
923 allow_fd_caching( mapping
->fd
);
928 release_object( mapping
);
932 /* create a read-only file mapping for the specified fd */
933 struct mapping
*create_fd_mapping( struct object
*root
, const struct unicode_str
*name
,
934 struct fd
*fd
, unsigned int attr
, const struct security_descriptor
*sd
)
936 struct mapping
*mapping
;
940 if (!(mapping
= create_named_object( root
, &mapping_ops
, name
, attr
, sd
))) return NULL
;
941 if (get_error() == STATUS_OBJECT_NAME_EXISTS
) return mapping
; /* Nothing else to do */
943 mapping
->shared
= NULL
;
944 mapping
->committed
= NULL
;
945 mapping
->flags
= SEC_FILE
;
946 mapping
->fd
= (struct fd
*)grab_object( fd
);
947 set_fd_user( mapping
->fd
, &mapping_fd_ops
, NULL
);
949 if ((unix_fd
= get_unix_fd( mapping
->fd
)) == -1) goto error
;
950 if (fstat( unix_fd
, &st
) == -1)
955 if (!(mapping
->size
= st
.st_size
))
957 set_error( STATUS_MAPPED_FILE_SIZE_ZERO
);
963 release_object( mapping
);
967 static struct mapping
*get_mapping_obj( struct process
*process
, obj_handle_t handle
, unsigned int access
)
969 return (struct mapping
*)get_handle_obj( process
, handle
, access
, &mapping_ops
);
972 /* open a new file for the file descriptor backing the view */
973 struct file
*get_view_file( const struct memory_view
*view
, unsigned int access
, unsigned int sharing
)
975 if (!view
->fd
) return NULL
;
976 return create_file_for_fd_obj( view
->fd
, access
, sharing
);
979 /* get the image info for a SEC_IMAGE mapped view */
980 const pe_image_info_t
*get_view_image_info( const struct memory_view
*view
, client_ptr_t
*base
)
982 if (!(view
->flags
& SEC_IMAGE
)) return NULL
;
987 /* get the file name for a mapped view */
988 int get_view_nt_name( const struct memory_view
*view
, struct unicode_str
*name
)
990 if (view
->namelen
) /* .so builtin */
992 name
->str
= view
->name
;
993 name
->len
= view
->namelen
;
996 if (!view
->fd
) return 0;
997 get_nt_name( view
->fd
, name
);
1001 /* generate all startup events of a given process */
1002 void generate_startup_debug_events( struct process
*process
)
1004 struct memory_view
*view
;
1005 struct list
*ptr
= list_head( &process
->views
);
1006 struct thread
*thread
, *first_thread
= get_process_first_thread( process
);
1009 view
= LIST_ENTRY( ptr
, struct memory_view
, entry
);
1010 generate_debug_event( first_thread
, DbgCreateProcessStateChange
, view
);
1012 /* generate ntdll.dll load event */
1013 while (ptr
&& (ptr
= list_next( &process
->views
, ptr
)))
1015 view
= LIST_ENTRY( ptr
, struct memory_view
, entry
);
1016 if (!(view
->flags
& SEC_IMAGE
)) continue;
1017 generate_debug_event( first_thread
, DbgLoadDllStateChange
, view
);
1021 /* generate creation events */
1022 LIST_FOR_EACH_ENTRY( thread
, &process
->thread_list
, struct thread
, proc_entry
)
1024 if (thread
!= first_thread
)
1025 generate_debug_event( thread
, DbgCreateThreadStateChange
, NULL
);
1028 /* generate dll events (in loading order) */
1029 while (ptr
&& (ptr
= list_next( &process
->views
, ptr
)))
1031 view
= LIST_ENTRY( ptr
, struct memory_view
, entry
);
1032 if (!(view
->flags
& SEC_IMAGE
)) continue;
1033 generate_debug_event( first_thread
, DbgLoadDllStateChange
, view
);
1037 static void mapping_dump( struct object
*obj
, int verbose
)
1039 struct mapping
*mapping
= (struct mapping
*)obj
;
1040 assert( obj
->ops
== &mapping_ops
);
1041 fprintf( stderr
, "Mapping size=%08x%08x flags=%08x fd=%p shared=%p\n",
1042 (unsigned int)(mapping
->size
>> 32), (unsigned int)mapping
->size
,
1043 mapping
->flags
, mapping
->fd
, mapping
->shared
);
1046 static struct fd
*mapping_get_fd( struct object
*obj
)
1048 struct mapping
*mapping
= (struct mapping
*)obj
;
1049 return (struct fd
*)grab_object( mapping
->fd
);
1052 static void mapping_destroy( struct object
*obj
)
1054 struct mapping
*mapping
= (struct mapping
*)obj
;
1055 assert( obj
->ops
== &mapping_ops
);
1056 if (mapping
->fd
) release_object( mapping
->fd
);
1057 if (mapping
->committed
) release_object( mapping
->committed
);
1058 if (mapping
->shared
) release_object( mapping
->shared
);
1061 static enum server_fd_type
mapping_get_fd_type( struct fd
*fd
)
1063 return FD_TYPE_FILE
;
1066 int get_page_size(void)
1068 if (!page_mask
) page_mask
= sysconf( _SC_PAGESIZE
) - 1;
1069 return page_mask
+ 1;
1072 struct object
*create_user_data_mapping( struct object
*root
, const struct unicode_str
*name
,
1073 unsigned int attr
, const struct security_descriptor
*sd
)
1076 struct mapping
*mapping
;
1078 if (!(mapping
= create_mapping( root
, name
, attr
, sizeof(KSHARED_USER_DATA
),
1079 SEC_COMMIT
, 0, FILE_READ_DATA
| FILE_WRITE_DATA
, sd
))) return NULL
;
1080 ptr
= mmap( NULL
, mapping
->size
, PROT_WRITE
, MAP_SHARED
, get_unix_fd( mapping
->fd
), 0 );
1081 if (ptr
!= MAP_FAILED
)
1083 user_shared_data
= ptr
;
1084 user_shared_data
->SystemCall
= 1;
1086 return &mapping
->obj
;
1089 /* create a file mapping */
1090 DECL_HANDLER(create_mapping
)
1092 struct object
*root
;
1093 struct mapping
*mapping
;
1094 struct unicode_str name
;
1095 const struct security_descriptor
*sd
;
1096 const struct object_attributes
*objattr
= get_req_object_attributes( &sd
, &name
, &root
);
1098 if (!objattr
) return;
1100 if ((mapping
= create_mapping( root
, &name
, objattr
->attributes
, req
->size
, req
->flags
,
1101 req
->file_handle
, req
->file_access
, sd
)))
1103 if (get_error() == STATUS_OBJECT_NAME_EXISTS
)
1104 reply
->handle
= alloc_handle( current
->process
, &mapping
->obj
, req
->access
, objattr
->attributes
);
1106 reply
->handle
= alloc_handle_no_access_check( current
->process
, &mapping
->obj
,
1107 req
->access
, objattr
->attributes
);
1108 release_object( mapping
);
1111 if (root
) release_object( root
);
1114 /* open a handle to a mapping */
1115 DECL_HANDLER(open_mapping
)
1117 struct unicode_str name
= get_req_unicode_str();
1119 reply
->handle
= open_object( current
->process
, req
->rootdir
, req
->access
,
1120 &mapping_ops
, &name
, req
->attributes
);
1123 /* get a mapping information */
1124 DECL_HANDLER(get_mapping_info
)
1126 struct mapping
*mapping
;
1128 if (!(mapping
= get_mapping_obj( current
->process
, req
->handle
, req
->access
))) return;
1130 reply
->size
= mapping
->size
;
1131 reply
->flags
= mapping
->flags
;
1133 if (mapping
->flags
& SEC_IMAGE
)
1135 struct unicode_str name
= { NULL
, 0 };
1139 if (mapping
->fd
) get_nt_name( mapping
->fd
, &name
);
1140 size
= min( sizeof(pe_image_info_t
) + name
.len
, get_reply_max_size() );
1141 if ((data
= set_reply_data_size( size
)))
1143 memcpy( data
, &mapping
->image
, min( sizeof(pe_image_info_t
), size
));
1144 if (size
> sizeof(pe_image_info_t
))
1145 memcpy( (pe_image_info_t
*)data
+ 1, name
.str
, size
- sizeof(pe_image_info_t
) );
1147 reply
->total
= sizeof(pe_image_info_t
) + name
.len
;
1150 if (!(req
->access
& (SECTION_MAP_READ
| SECTION_MAP_WRITE
))) /* query only */
1152 release_object( mapping
);
1156 if (mapping
->shared
)
1157 reply
->shared_file
= alloc_handle( current
->process
, mapping
->shared
->file
,
1158 GENERIC_READ
|GENERIC_WRITE
, 0 );
1159 release_object( mapping
);
1162 /* add a memory view in the current process */
1163 DECL_HANDLER(map_view
)
1165 struct mapping
*mapping
= NULL
;
1166 struct memory_view
*view
;
1167 data_size_t namelen
= 0;
1169 if (!req
->size
|| (req
->base
& page_mask
) || req
->base
+ req
->size
< req
->base
) /* overflow */
1171 set_error( STATUS_INVALID_PARAMETER
);
1175 /* make sure we don't already have an overlapping view */
1176 LIST_FOR_EACH_ENTRY( view
, ¤t
->process
->views
, struct memory_view
, entry
)
1178 if (view
->base
+ view
->size
<= req
->base
) continue;
1179 if (view
->base
>= req
->base
+ req
->size
) continue;
1180 set_error( STATUS_INVALID_PARAMETER
);
1184 if (!req
->mapping
) /* image mapping for a .so dll */
1186 if (get_req_data_size() > sizeof(view
->image
)) namelen
= get_req_data_size() - sizeof(view
->image
);
1187 if (!(view
= mem_alloc( offsetof( struct memory_view
, name
[namelen
] )))) return;
1188 memset( view
, 0, sizeof(*view
) );
1189 view
->base
= req
->base
;
1190 view
->size
= req
->size
;
1191 view
->start
= req
->start
;
1192 view
->flags
= SEC_IMAGE
;
1193 view
->namelen
= namelen
;
1194 memcpy( &view
->image
, get_req_data(), min( sizeof(view
->image
), get_req_data_size() ));
1195 memcpy( view
->name
, (pe_image_info_t
*)get_req_data() + 1, namelen
);
1196 add_process_view( current
, view
);
1200 if (!(mapping
= get_mapping_obj( current
->process
, req
->mapping
, req
->access
))) return;
1202 if (mapping
->flags
& SEC_IMAGE
)
1204 if (req
->start
|| req
->size
> mapping
->image
.map_size
)
1206 set_error( STATUS_INVALID_PARAMETER
);
1210 else if (req
->start
>= mapping
->size
||
1211 req
->start
+ req
->size
< req
->start
||
1212 req
->start
+ req
->size
> ((mapping
->size
+ page_mask
) & ~(mem_size_t
)page_mask
))
1214 set_error( STATUS_INVALID_PARAMETER
);
1218 if ((view
= mem_alloc( offsetof( struct memory_view
, name
[namelen
] ))))
1220 view
->base
= req
->base
;
1221 view
->size
= req
->size
;
1222 view
->start
= req
->start
;
1223 view
->flags
= mapping
->flags
;
1224 view
->namelen
= namelen
;
1225 view
->fd
= !is_fd_removable( mapping
->fd
) ? (struct fd
*)grab_object( mapping
->fd
) : NULL
;
1226 view
->committed
= mapping
->committed
? (struct ranges
*)grab_object( mapping
->committed
) : NULL
;
1227 view
->shared
= mapping
->shared
? (struct shared_map
*)grab_object( mapping
->shared
) : NULL
;
1228 if (view
->flags
& SEC_IMAGE
) view
->image
= mapping
->image
;
1229 add_process_view( current
, view
);
1230 if (view
->flags
& SEC_IMAGE
&& view
->base
!= mapping
->image
.base
)
1231 set_error( STATUS_IMAGE_NOT_AT_BASE
);
1235 release_object( mapping
);
1238 /* unmap a memory view from the current process */
1239 DECL_HANDLER(unmap_view
)
1241 struct memory_view
*view
= find_mapped_view( current
->process
, req
->base
);
1244 if (view
->flags
& SEC_IMAGE
) generate_debug_event( current
, DbgUnloadDllStateChange
, view
);
1245 free_memory_view( view
);
1248 /* get a range of committed pages in a file mapping */
1249 DECL_HANDLER(get_mapping_committed_range
)
1251 struct memory_view
*view
= find_mapped_view( current
->process
, req
->base
);
1253 if (view
) reply
->committed
= find_committed_range( view
, req
->offset
, &reply
->size
);
1256 /* add a range to the committed pages in a file mapping */
1257 DECL_HANDLER(add_mapping_committed_range
)
1259 struct memory_view
*view
= find_mapped_view( current
->process
, req
->base
);
1261 if (view
) add_committed_range( view
, req
->offset
, req
->offset
+ req
->size
);
1264 /* check if two memory maps are for the same file */
1265 DECL_HANDLER(is_same_mapping
)
1267 struct memory_view
*view1
= find_mapped_view( current
->process
, req
->base1
);
1268 struct memory_view
*view2
= find_mapped_view( current
->process
, req
->base2
);
1270 if (!view1
|| !view2
) return;
1271 if (!view1
->fd
|| !view2
->fd
|| !(view1
->flags
& SEC_IMAGE
) || !is_same_file_fd( view1
->fd
, view2
->fd
))
1272 set_error( STATUS_NOT_SAME_DEVICE
);
1275 /* get the filename of a mapping */
1276 DECL_HANDLER(get_mapping_filename
)
1278 struct process
*process
;
1279 struct memory_view
*view
;
1280 struct unicode_str name
;
1282 if (!(process
= get_process_from_handle( req
->process
, PROCESS_QUERY_INFORMATION
))) return;
1284 if ((view
= find_mapped_addr( process
, req
->addr
)) && get_view_nt_name( view
, &name
))
1286 reply
->len
= name
.len
;
1287 if (name
.len
> get_reply_max_size()) set_error( STATUS_BUFFER_OVERFLOW
);
1288 else if (!name
.len
) set_error( STATUS_FILE_INVALID
);
1289 else set_reply_data( name
.str
, name
.len
);
1291 else set_error( STATUS_INVALID_ADDRESS
);
1293 release_object( process
);