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ntdll: Store the SEC_* section flags directly in the view protection. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2017-09-08 15:37:12 +02:00
parent b2624ab99a
commit 5073beaefe
3 changed files with 24 additions and 33 deletions
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45
dlls/ntdll/virtual.c
View File

@ -72,7 +72,7 @@ struct file_view
size_t size; /* size in bytes */
HANDLE mapping; /* handle to the file mapping */
unsigned int map_protect; /* mapping protection */
unsigned int protect; /* protection for all pages at allocation time */
unsigned int protect; /* protection for all pages at allocation time and SEC_* flags */
};
@ -727,11 +727,11 @@ static NTSTATUS create_view( struct file_view **view_ret, void *base, size_t siz
*
* Convert page protections to Win32 flags.
*/
static DWORD VIRTUAL_GetWin32Prot( BYTE vprot )
static DWORD VIRTUAL_GetWin32Prot( BYTE vprot, unsigned int map_prot )
{
DWORD ret = VIRTUAL_Win32Flags[vprot & 0x0f];
if (vprot & VPROT_NOCACHE) ret |= PAGE_NOCACHE;
if (vprot & VPROT_GUARD) ret |= PAGE_GUARD;
if (map_prot & SEC_NOCACHE) ret |= PAGE_NOCACHE;
return ret;
}
@ -785,7 +785,6 @@ static NTSTATUS get_vprot_flags( DWORD protect, unsigned int *vprot, BOOL image
return STATUS_INVALID_PAGE_PROTECTION;
}
if (protect & PAGE_GUARD) *vprot |= VPROT_GUARD;
if (protect & PAGE_NOCACHE) *vprot |= VPROT_NOCACHE;
return STATUS_SUCCESS;
}
@ -1148,7 +1147,7 @@ static SIZE_T get_committed_size( struct file_view *view, void *base, BYTE *vpro
start = ((char *)base - (char *)view->base) >> page_shift;
*vprot = get_page_vprot( base );
if (view->mapping && !(view->protect & VPROT_COMMITTED))
if (view->protect & SEC_RESERVE)
{
SIZE_T ret = 0;
SERVER_START_REQ( get_mapping_committed_range )
@ -1295,12 +1294,12 @@ static NTSTATUS map_image( HANDLE hmapping, int fd, char *base, SIZE_T total_siz
server_enter_uninterrupted_section( &csVirtual, &sigset );
if (base >= (char *)address_space_start) /* make sure the DOS area remains free */
status = map_view( &view, base, total_size, mask, FALSE,
VPROT_COMMITTED | VPROT_READ | VPROT_EXEC | VPROT_WRITECOPY | VPROT_IMAGE );
status = map_view( &view, base, total_size, mask, FALSE, SEC_IMAGE | SEC_FILE |
VPROT_COMMITTED | VPROT_READ | VPROT_EXEC | VPROT_WRITECOPY );
if (status != STATUS_SUCCESS)
status = map_view( &view, NULL, total_size, mask, FALSE,
VPROT_COMMITTED | VPROT_READ | VPROT_EXEC | VPROT_WRITECOPY | VPROT_IMAGE );
status = map_view( &view, NULL, total_size, mask, FALSE, SEC_IMAGE | SEC_FILE |
VPROT_COMMITTED | VPROT_READ | VPROT_EXEC | VPROT_WRITECOPY );
if (status != STATUS_SUCCESS) goto error;
@ -1633,7 +1632,7 @@ NTSTATUS virtual_create_builtin_view( void *module )
size = ROUND_SIZE( module, size );
base = ROUND_ADDR( module, page_mask );
server_enter_uninterrupted_section( &csVirtual, &sigset );
status = create_view( &view, base, size, VPROT_SYSTEM | VPROT_IMAGE |
status = create_view( &view, base, size, SEC_IMAGE | SEC_FILE | VPROT_SYSTEM |
VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY | VPROT_EXEC );
if (!status) TRACE( "created %p-%p\n", base, (char *)base + size );
server_leave_uninterrupted_section( &csVirtual, &sigset );
@ -2103,6 +2102,7 @@ NTSTATUS WINAPI NtAllocateVirtualMemory( HANDLE process, PVOID *ret, ULONG zero_
if (vprot & VPROT_WRITECOPY) return STATUS_INVALID_PAGE_PROTECTION;
vprot |= VPROT_VALLOC;
if (type & MEM_COMMIT) vprot |= VPROT_COMMITTED;
if (protect & PAGE_NOCACHE) vprot |= SEC_NOCACHE;
if (*ret)
{
@ -2165,9 +2165,9 @@ NTSTATUS WINAPI NtAllocateVirtualMemory( HANDLE process, PVOID *ret, ULONG zero_
else /* commit the pages */
{
if (!(view = VIRTUAL_FindView( base, size ))) status = STATUS_NOT_MAPPED_VIEW;
else if (view->mapping && (view->protect & VPROT_COMMITTED)) status = STATUS_ALREADY_COMMITTED;
else if (view->mapping && !(view->protect & SEC_RESERVE)) status = STATUS_ALREADY_COMMITTED;
else if (!VIRTUAL_SetProt( view, base, size, vprot )) status = STATUS_ACCESS_DENIED;
else if (view->mapping && !(view->protect & VPROT_COMMITTED))
else if (view->protect & SEC_RESERVE)
{
SERVER_START_REQ( add_mapping_committed_range )
{
@ -2358,7 +2358,7 @@ NTSTATUS WINAPI NtProtectVirtualMemory( HANDLE process, PVOID *addr_ptr, SIZE_T
/* Make sure all the pages are committed */
if (get_committed_size( view, base, &vprot ) >= size && (vprot & VPROT_COMMITTED))
{
if (!(status = get_vprot_flags( new_prot, &new_vprot, view->protect & VPROT_IMAGE )))
if (!(status = get_vprot_flags( new_prot, &new_vprot, view->protect & SEC_IMAGE )))
{
if ((new_vprot & VPROT_WRITECOPY) && (view->protect & VPROT_VALLOC))
status = STATUS_INVALID_PAGE_PROTECTION;
@ -2367,9 +2367,7 @@ NTSTATUS WINAPI NtProtectVirtualMemory( HANDLE process, PVOID *addr_ptr, SIZE_T
if (!view->mapping || is_compatible_protection( view, new_vprot ))
{
new_vprot |= VPROT_COMMITTED;
if (view->protect & VPROT_NOCACHE) new_vprot |= VPROT_NOCACHE;
else new_vprot &= ~VPROT_NOCACHE;
if (old_prot) *old_prot = VIRTUAL_GetWin32Prot( vprot );
if (old_prot) *old_prot = VIRTUAL_GetWin32Prot( vprot, view->protect );
if (!VIRTUAL_SetProt( view, base, size, new_vprot )) status = STATUS_ACCESS_DENIED;
}
else status = STATUS_INVALID_PAGE_PROTECTION;
@ -2556,9 +2554,9 @@ NTSTATUS WINAPI NtQueryVirtualMemory( HANDLE process, LPCVOID addr,
SIZE_T range_size = get_committed_size( view, base, &vprot );
info->State = (vprot & VPROT_COMMITTED) ? MEM_COMMIT : MEM_RESERVE;
info->Protect = (vprot & VPROT_COMMITTED) ? VIRTUAL_GetWin32Prot( vprot ) : 0;
info->AllocationProtect = VIRTUAL_GetWin32Prot( view->protect );
if (view->protect & VPROT_IMAGE) info->Type = MEM_IMAGE;
info->Protect = (vprot & VPROT_COMMITTED) ? VIRTUAL_GetWin32Prot( vprot, view->protect ) : 0;
info->AllocationProtect = VIRTUAL_GetWin32Prot( view->protect, view->protect );
if (view->protect & SEC_IMAGE) info->Type = MEM_IMAGE;
else if (view->protect & VPROT_VALLOC) info->Type = MEM_PRIVATE;
else info->Type = MEM_MAPPED;
for (ptr = base; ptr < base + range_size; ptr += page_size)
@ -2807,10 +2805,6 @@ NTSTATUS WINAPI NtMapViewOfSection( HANDLE handle, HANDLE process, PVOID *addr_p
SERVER_END_REQ;
if (res) return res;
if (!(sec_flags & SEC_RESERVE)) map_vprot |= VPROT_COMMITTED;
if (sec_flags & SEC_NOCACHE) map_vprot |= VPROT_NOCACHE;
if (sec_flags & SEC_IMAGE) map_vprot |= VPROT_IMAGE;
if ((res = server_get_unix_fd( handle, 0, &unix_handle, &needs_close, NULL, NULL ))) goto done;
if (sec_flags & SEC_IMAGE)
@ -2875,7 +2869,8 @@ NTSTATUS WINAPI NtMapViewOfSection( HANDLE handle, HANDLE process, PVOID *addr_p
server_enter_uninterrupted_section( &csVirtual, &sigset );
get_vprot_flags( protect, &vprot, sec_flags & SEC_IMAGE );
vprot |= (map_vprot & VPROT_COMMITTED);
vprot |= sec_flags;
if (!(sec_flags & SEC_RESERVE)) vprot |= VPROT_COMMITTED;
res = map_view( &view, *addr_ptr, size, mask, FALSE, vprot );
if (res)
{
@ -3225,7 +3220,7 @@ NTSTATUS WINAPI NtAreMappedFilesTheSame(PVOID addr1, PVOID addr2)
status = STATUS_CONFLICTING_ADDRESSES;
else if (view1 == view2)
status = STATUS_SUCCESS;
else if (!(view1->protect & VPROT_IMAGE) || !(view2->protect & VPROT_IMAGE))
else if (!(view1->protect & SEC_IMAGE) || !(view2->protect & SEC_IMAGE))
status = STATUS_NOT_SAME_DEVICE;
else if (!stat_mapping_file( view1, &st1 ) && !stat_mapping_file( view2, &st2 ) &&
st1.st_dev == st2.st_dev && st1.st_ino == st2.st_ino)

6
include/wine/server_protocol.h
View File

@ -2192,11 +2192,9 @@ struct create_mapping_reply
#define VPROT_EXEC 0x04
#define VPROT_WRITECOPY 0x08
#define VPROT_GUARD 0x10
#define VPROT_NOCACHE 0x20
#define VPROT_COMMITTED 0x40
#define VPROT_WRITEWATCH 0x80
#define VPROT_COMMITTED 0x20
#define VPROT_WRITEWATCH 0x40
#define VPROT_IMAGE 0x0100
#define VPROT_SYSTEM 0x0200
#define VPROT_VALLOC 0x0400

6
server/protocol.def
View File

@ -1704,11 +1704,9 @@ enum char_info_mode
#define VPROT_EXEC 0x04
#define VPROT_WRITECOPY 0x08
#define VPROT_GUARD 0x10
#define VPROT_NOCACHE 0x20
#define VPROT_COMMITTED 0x40
#define VPROT_WRITEWATCH 0x80
#define VPROT_COMMITTED 0x20
#define VPROT_WRITEWATCH 0x40
/* per-mapping protection flags */
#define VPROT_IMAGE 0x0100 /* mapping for an exe image */
#define VPROT_SYSTEM 0x0200 /* system view (underlying mmap not under our control) */
#define VPROT_VALLOC 0x0400 /* allocated by VirtualAlloc */