3385 lines
111 KiB
C
3385 lines
111 KiB
C
/*
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* Win32 virtual memory functions
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*
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* Copyright 1997, 2002 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#include "wine/port.h"
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#include <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#ifdef HAVE_SYS_SOCKET_H
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# include <sys/socket.h>
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#endif
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#ifdef HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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#ifdef HAVE_SYS_MMAN_H
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# include <sys/mman.h>
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#endif
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#ifdef HAVE_SYS_SYSINFO_H
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# include <sys/sysinfo.h>
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#endif
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#ifdef HAVE_VALGRIND_VALGRIND_H
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# include <valgrind/valgrind.h>
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#endif
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#define NONAMELESSUNION
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#include "windef.h"
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#include "winternl.h"
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#include "wine/library.h"
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#include "wine/server.h"
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#include "wine/exception.h"
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#include "wine/rbtree.h"
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#include "wine/debug.h"
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#include "ntdll_misc.h"
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WINE_DEFAULT_DEBUG_CHANNEL(virtual);
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WINE_DECLARE_DEBUG_CHANNEL(module);
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#ifndef MAP_NORESERVE
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#define MAP_NORESERVE 0
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#endif
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/* File view */
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struct file_view
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{
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struct wine_rb_entry entry; /* entry in global view tree */
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void *base; /* base address */
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size_t size; /* size in bytes */
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unsigned int protect; /* protection for all pages at allocation time and SEC_* flags */
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};
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/* per-page protection flags */
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#define VPROT_READ 0x01
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#define VPROT_WRITE 0x02
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#define VPROT_EXEC 0x04
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#define VPROT_WRITECOPY 0x08
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#define VPROT_GUARD 0x10
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#define VPROT_COMMITTED 0x20
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#define VPROT_WRITEWATCH 0x40
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/* per-mapping protection flags */
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#define VPROT_SYSTEM 0x0200 /* system view (underlying mmap not under our control) */
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/* Conversion from VPROT_* to Win32 flags */
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static const BYTE VIRTUAL_Win32Flags[16] =
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{
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PAGE_NOACCESS, /* 0 */
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PAGE_READONLY, /* READ */
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PAGE_READWRITE, /* WRITE */
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PAGE_READWRITE, /* READ | WRITE */
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PAGE_EXECUTE, /* EXEC */
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PAGE_EXECUTE_READ, /* READ | EXEC */
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PAGE_EXECUTE_READWRITE, /* WRITE | EXEC */
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PAGE_EXECUTE_READWRITE, /* READ | WRITE | EXEC */
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PAGE_WRITECOPY, /* WRITECOPY */
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PAGE_WRITECOPY, /* READ | WRITECOPY */
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PAGE_WRITECOPY, /* WRITE | WRITECOPY */
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PAGE_WRITECOPY, /* READ | WRITE | WRITECOPY */
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PAGE_EXECUTE_WRITECOPY, /* EXEC | WRITECOPY */
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PAGE_EXECUTE_WRITECOPY, /* READ | EXEC | WRITECOPY */
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PAGE_EXECUTE_WRITECOPY, /* WRITE | EXEC | WRITECOPY */
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PAGE_EXECUTE_WRITECOPY /* READ | WRITE | EXEC | WRITECOPY */
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};
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static struct wine_rb_tree views_tree;
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static RTL_CRITICAL_SECTION csVirtual;
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static RTL_CRITICAL_SECTION_DEBUG critsect_debug =
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{
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0, 0, &csVirtual,
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{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": csVirtual") }
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};
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static RTL_CRITICAL_SECTION csVirtual = { &critsect_debug, -1, 0, 0, 0, 0 };
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#ifdef __i386__
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static const UINT page_shift = 12;
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static const UINT_PTR page_mask = 0xfff;
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/* Note: these are Windows limits, you cannot change them. */
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static void *address_space_limit = (void *)0xc0000000; /* top of the total available address space */
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static void *user_space_limit = (void *)0x7fff0000; /* top of the user address space */
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static void *working_set_limit = (void *)0x7fff0000; /* top of the current working set */
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static void *address_space_start = (void *)0x110000; /* keep DOS area clear */
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#elif defined(__x86_64__)
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static const UINT page_shift = 12;
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static const UINT_PTR page_mask = 0xfff;
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static void *address_space_limit = (void *)0x7fffffff0000;
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static void *user_space_limit = (void *)0x7fffffff0000;
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static void *working_set_limit = (void *)0x7fffffff0000;
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static void *address_space_start = (void *)0x10000;
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#else
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UINT_PTR page_size = 0;
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static UINT page_shift;
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static UINT_PTR page_mask;
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static void *address_space_limit;
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static void *user_space_limit;
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static void *working_set_limit;
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static void *address_space_start = (void *)0x10000;
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#endif /* __i386__ */
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static const BOOL is_win64 = (sizeof(void *) > sizeof(int));
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#define ROUND_ADDR(addr,mask) \
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((void *)((UINT_PTR)(addr) & ~(UINT_PTR)(mask)))
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#define ROUND_SIZE(addr,size) \
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(((SIZE_T)(size) + ((UINT_PTR)(addr) & page_mask) + page_mask) & ~page_mask)
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#define VIRTUAL_DEBUG_DUMP_VIEW(view) \
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do { if (TRACE_ON(virtual)) VIRTUAL_DumpView(view); } while (0)
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#ifdef _WIN64 /* on 64-bit the page protection bytes use a 2-level table */
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static const size_t pages_vprot_shift = 20;
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static const size_t pages_vprot_mask = (1 << 20) - 1;
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static size_t pages_vprot_size;
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static BYTE **pages_vprot;
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#else /* on 32-bit we use a simple array with one byte per page */
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static BYTE *pages_vprot;
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#endif
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static struct file_view *view_block_start, *view_block_end, *next_free_view;
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static const size_t view_block_size = 0x100000;
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static void *preload_reserve_start;
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static void *preload_reserve_end;
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static BOOL use_locks;
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static BOOL force_exec_prot; /* whether to force PROT_EXEC on all PROT_READ mmaps */
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static inline int is_view_valloc( const struct file_view *view )
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{
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return !(view->protect & (SEC_FILE | SEC_RESERVE | SEC_COMMIT));
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}
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/***********************************************************************
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* get_page_vprot
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*
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* Return the page protection byte.
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*/
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static BYTE get_page_vprot( const void *addr )
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{
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size_t idx = (size_t)addr >> page_shift;
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#ifdef _WIN64
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if (!pages_vprot[idx >> pages_vprot_shift]) return 0;
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return pages_vprot[idx >> pages_vprot_shift][idx & pages_vprot_mask];
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#else
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return pages_vprot[idx];
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#endif
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}
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/***********************************************************************
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* set_page_vprot
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*
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* Set a range of page protection bytes.
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*/
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static void set_page_vprot( const void *addr, size_t size, BYTE vprot )
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{
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size_t idx = (size_t)addr >> page_shift;
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size_t end = ((size_t)addr + size + page_mask) >> page_shift;
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#ifdef _WIN64
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while (idx >> pages_vprot_shift != end >> pages_vprot_shift)
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{
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size_t dir_size = pages_vprot_mask + 1 - (idx & pages_vprot_mask);
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memset( pages_vprot[idx >> pages_vprot_shift] + (idx & pages_vprot_mask), vprot, dir_size );
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idx += dir_size;
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}
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memset( pages_vprot[idx >> pages_vprot_shift] + (idx & pages_vprot_mask), vprot, end - idx );
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#else
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memset( pages_vprot + idx, vprot, end - idx );
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#endif
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}
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/***********************************************************************
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* set_page_vprot_bits
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*
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* Set or clear bits in a range of page protection bytes.
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*/
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static void set_page_vprot_bits( const void *addr, size_t size, BYTE set, BYTE clear )
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{
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size_t idx = (size_t)addr >> page_shift;
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size_t end = ((size_t)addr + size + page_mask) >> page_shift;
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#ifdef _WIN64
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for ( ; idx < end; idx++)
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{
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BYTE *ptr = pages_vprot[idx >> pages_vprot_shift] + (idx & pages_vprot_mask);
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*ptr = (*ptr & ~clear) | set;
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}
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#else
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for ( ; idx < end; idx++) pages_vprot[idx] = (pages_vprot[idx] & ~clear) | set;
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#endif
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}
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/***********************************************************************
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* alloc_pages_vprot
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*
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* Allocate the page protection bytes for a given range.
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*/
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static BOOL alloc_pages_vprot( const void *addr, size_t size )
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{
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#ifdef _WIN64
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size_t idx = (size_t)addr >> page_shift;
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size_t end = ((size_t)addr + size + page_mask) >> page_shift;
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size_t i;
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void *ptr;
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assert( end <= pages_vprot_size << pages_vprot_shift );
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for (i = idx >> pages_vprot_shift; i < (end + pages_vprot_mask) >> pages_vprot_shift; i++)
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{
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if (pages_vprot[i]) continue;
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if ((ptr = wine_anon_mmap( NULL, pages_vprot_mask + 1, PROT_READ | PROT_WRITE, 0 )) == (void *)-1)
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return FALSE;
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pages_vprot[i] = ptr;
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}
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#endif
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return TRUE;
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}
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/***********************************************************************
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* compare_view
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*
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* View comparison function used for the rb tree.
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*/
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static int compare_view( const void *addr, const struct wine_rb_entry *entry )
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{
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struct file_view *view = WINE_RB_ENTRY_VALUE( entry, struct file_view, entry );
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if (addr < view->base) return -1;
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if (addr > view->base) return 1;
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return 0;
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}
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/***********************************************************************
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* VIRTUAL_GetProtStr
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*/
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static const char *VIRTUAL_GetProtStr( BYTE prot )
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{
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static char buffer[6];
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buffer[0] = (prot & VPROT_COMMITTED) ? 'c' : '-';
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buffer[1] = (prot & VPROT_GUARD) ? 'g' : ((prot & VPROT_WRITEWATCH) ? 'H' : '-');
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buffer[2] = (prot & VPROT_READ) ? 'r' : '-';
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buffer[3] = (prot & VPROT_WRITECOPY) ? 'W' : ((prot & VPROT_WRITE) ? 'w' : '-');
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buffer[4] = (prot & VPROT_EXEC) ? 'x' : '-';
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buffer[5] = 0;
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return buffer;
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}
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/***********************************************************************
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* VIRTUAL_GetUnixProt
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*
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* Convert page protections to protection for mmap/mprotect.
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*/
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static int VIRTUAL_GetUnixProt( BYTE vprot )
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{
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int prot = 0;
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if ((vprot & VPROT_COMMITTED) && !(vprot & VPROT_GUARD))
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{
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if (vprot & VPROT_READ) prot |= PROT_READ;
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if (vprot & VPROT_WRITE) prot |= PROT_WRITE | PROT_READ;
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if (vprot & VPROT_WRITECOPY) prot |= PROT_WRITE | PROT_READ;
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if (vprot & VPROT_EXEC) prot |= PROT_EXEC | PROT_READ;
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if (vprot & VPROT_WRITEWATCH) prot &= ~PROT_WRITE;
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}
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if (!prot) prot = PROT_NONE;
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return prot;
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}
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/***********************************************************************
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* VIRTUAL_DumpView
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*/
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static void VIRTUAL_DumpView( struct file_view *view )
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{
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UINT i, count;
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char *addr = view->base;
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BYTE prot = get_page_vprot( addr );
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TRACE( "View: %p - %p", addr, addr + view->size - 1 );
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if (view->protect & VPROT_SYSTEM)
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TRACE( " (builtin image)\n" );
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else if (view->protect & SEC_IMAGE)
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TRACE( " (image)\n" );
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else if (view->protect & SEC_FILE)
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TRACE( " (file)\n" );
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else if (view->protect & (SEC_RESERVE | SEC_COMMIT))
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TRACE( " (anonymous)\n" );
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else
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TRACE( " (valloc)\n");
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for (count = i = 1; i < view->size >> page_shift; i++, count++)
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{
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BYTE next = get_page_vprot( addr + (count << page_shift) );
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if (next == prot) continue;
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TRACE( " %p - %p %s\n",
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addr, addr + (count << page_shift) - 1, VIRTUAL_GetProtStr(prot) );
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addr += (count << page_shift);
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prot = next;
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count = 0;
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}
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if (count)
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TRACE( " %p - %p %s\n",
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addr, addr + (count << page_shift) - 1, VIRTUAL_GetProtStr(prot) );
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}
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/***********************************************************************
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* VIRTUAL_Dump
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*/
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#ifdef WINE_VM_DEBUG
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static void VIRTUAL_Dump(void)
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{
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sigset_t sigset;
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struct file_view *view;
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TRACE( "Dump of all virtual memory views:\n" );
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server_enter_uninterrupted_section( &csVirtual, &sigset );
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WINE_RB_FOR_EACH_ENTRY( view, &views_tree, struct file_view, entry )
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{
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VIRTUAL_DumpView( view );
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}
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server_leave_uninterrupted_section( &csVirtual, &sigset );
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}
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#endif
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/***********************************************************************
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* VIRTUAL_FindView
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*
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* Find the view containing a given address. The csVirtual section must be held by caller.
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*
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* PARAMS
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* addr [I] Address
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*
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* RETURNS
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* View: Success
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* NULL: Failure
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*/
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static struct file_view *VIRTUAL_FindView( const void *addr, size_t size )
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{
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struct wine_rb_entry *ptr = views_tree.root;
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if ((const char *)addr + size < (const char *)addr) return NULL; /* overflow */
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while (ptr)
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{
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struct file_view *view = WINE_RB_ENTRY_VALUE( ptr, struct file_view, entry );
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if (view->base > addr) ptr = ptr->left;
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else if ((const char *)view->base + view->size <= (const char *)addr) ptr = ptr->right;
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else if ((const char *)view->base + view->size < (const char *)addr + size) break; /* size too large */
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else return view;
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}
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return NULL;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* get_mask
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|
*/
|
|
static inline UINT_PTR get_mask( ULONG zero_bits )
|
|
{
|
|
if (!zero_bits) return 0xffff; /* allocations are aligned to 64K by default */
|
|
if (zero_bits < page_shift) zero_bits = page_shift;
|
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if (zero_bits > 21) return 0;
|
|
return (1 << zero_bits) - 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* is_write_watch_range
|
|
*/
|
|
static inline BOOL is_write_watch_range( const void *addr, size_t size )
|
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{
|
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struct file_view *view = VIRTUAL_FindView( addr, size );
|
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return view && (view->protect & VPROT_WRITEWATCH);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* find_view_range
|
|
*
|
|
* Find the first view overlapping at least part of the specified range.
|
|
* The csVirtual section must be held by caller.
|
|
*/
|
|
static struct file_view *find_view_range( const void *addr, size_t size )
|
|
{
|
|
struct wine_rb_entry *ptr = views_tree.root;
|
|
|
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while (ptr)
|
|
{
|
|
struct file_view *view = WINE_RB_ENTRY_VALUE( ptr, struct file_view, entry );
|
|
|
|
if ((const char *)view->base >= (const char *)addr + size) ptr = ptr->left;
|
|
else if ((const char *)view->base + view->size <= (const char *)addr) ptr = ptr->right;
|
|
else return view;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* find_free_area
|
|
*
|
|
* Find a free area between views inside the specified range.
|
|
* The csVirtual section must be held by caller.
|
|
*/
|
|
static void *find_free_area( void *base, void *end, size_t size, size_t mask, int top_down )
|
|
{
|
|
struct wine_rb_entry *first = NULL, *ptr = views_tree.root;
|
|
void *start;
|
|
|
|
/* find the first (resp. last) view inside the range */
|
|
while (ptr)
|
|
{
|
|
struct file_view *view = WINE_RB_ENTRY_VALUE( ptr, struct file_view, entry );
|
|
if ((char *)view->base + view->size >= (char *)end)
|
|
{
|
|
end = min( end, view->base );
|
|
ptr = ptr->left;
|
|
}
|
|
else if (view->base <= base)
|
|
{
|
|
base = max( (char *)base, (char *)view->base + view->size );
|
|
ptr = ptr->right;
|
|
}
|
|
else
|
|
{
|
|
first = ptr;
|
|
ptr = top_down ? ptr->right : ptr->left;
|
|
}
|
|
}
|
|
|
|
if (top_down)
|
|
{
|
|
start = ROUND_ADDR( (char *)end - size, mask );
|
|
if (start >= end || start < base) return NULL;
|
|
|
|
while (first)
|
|
{
|
|
struct file_view *view = WINE_RB_ENTRY_VALUE( first, struct file_view, entry );
|
|
|
|
if ((char *)view->base + view->size <= (char *)start) break;
|
|
start = ROUND_ADDR( (char *)view->base - size, mask );
|
|
/* stop if remaining space is not large enough */
|
|
if (!start || start >= end || start < base) return NULL;
|
|
first = wine_rb_prev( first );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
start = ROUND_ADDR( (char *)base + mask, mask );
|
|
if (!start || start >= end || (char *)end - (char *)start < size) return NULL;
|
|
|
|
while (first)
|
|
{
|
|
struct file_view *view = WINE_RB_ENTRY_VALUE( first, struct file_view, entry );
|
|
|
|
if ((char *)view->base >= (char *)start + size) break;
|
|
start = ROUND_ADDR( (char *)view->base + view->size + mask, mask );
|
|
/* stop if remaining space is not large enough */
|
|
if (!start || start >= end || (char *)end - (char *)start < size) return NULL;
|
|
first = wine_rb_next( first );
|
|
}
|
|
}
|
|
return start;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* add_reserved_area
|
|
*
|
|
* Add a reserved area to the list maintained by libwine.
|
|
* The csVirtual section must be held by caller.
|
|
*/
|
|
static void add_reserved_area( void *addr, size_t size )
|
|
{
|
|
TRACE( "adding %p-%p\n", addr, (char *)addr + size );
|
|
|
|
if (addr < user_space_limit)
|
|
{
|
|
/* unmap the part of the area that is below the limit */
|
|
assert( (char *)addr + size > (char *)user_space_limit );
|
|
munmap( addr, (char *)user_space_limit - (char *)addr );
|
|
size -= (char *)user_space_limit - (char *)addr;
|
|
addr = user_space_limit;
|
|
}
|
|
/* blow away existing mappings */
|
|
wine_anon_mmap( addr, size, PROT_NONE, MAP_NORESERVE | MAP_FIXED );
|
|
wine_mmap_add_reserved_area( addr, size );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* remove_reserved_area
|
|
*
|
|
* Remove a reserved area from the list maintained by libwine.
|
|
* The csVirtual section must be held by caller.
|
|
*/
|
|
static void remove_reserved_area( void *addr, size_t size )
|
|
{
|
|
struct file_view *view;
|
|
|
|
TRACE( "removing %p-%p\n", addr, (char *)addr + size );
|
|
wine_mmap_remove_reserved_area( addr, size, 0 );
|
|
|
|
/* unmap areas not covered by an existing view */
|
|
WINE_RB_FOR_EACH_ENTRY( view, &views_tree, struct file_view, entry )
|
|
{
|
|
if ((char *)view->base >= (char *)addr + size) break;
|
|
if ((char *)view->base + view->size <= (char *)addr) continue;
|
|
if (view->base > addr) munmap( addr, (char *)view->base - (char *)addr );
|
|
if ((char *)view->base + view->size > (char *)addr + size) return;
|
|
size = (char *)addr + size - ((char *)view->base + view->size);
|
|
addr = (char *)view->base + view->size;
|
|
}
|
|
munmap( addr, size );
|
|
}
|
|
|
|
|
|
struct area_boundary
|
|
{
|
|
void *base;
|
|
size_t size;
|
|
void *boundary;
|
|
};
|
|
|
|
/***********************************************************************
|
|
* get_area_boundary_callback
|
|
*
|
|
* Get lowest boundary address between reserved area and non-reserved area
|
|
* in the specified region. If no boundaries are found, result is NULL.
|
|
* The csVirtual section must be held by caller.
|
|
*/
|
|
static int get_area_boundary_callback( void *start, size_t size, void *arg )
|
|
{
|
|
struct area_boundary *area = arg;
|
|
void *end = (char *)start + size;
|
|
|
|
area->boundary = NULL;
|
|
if (area->base >= end) return 0;
|
|
if ((char *)start >= (char *)area->base + area->size) return 1;
|
|
if (area->base >= start)
|
|
{
|
|
if ((char *)area->base + area->size > (char *)end)
|
|
{
|
|
area->boundary = end;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
area->boundary = start;
|
|
return 1;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* is_beyond_limit
|
|
*
|
|
* Check if an address range goes beyond a given limit.
|
|
*/
|
|
static inline BOOL is_beyond_limit( const void *addr, size_t size, const void *limit )
|
|
{
|
|
return (addr >= limit || (const char *)addr + size > (const char *)limit);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* unmap_area
|
|
*
|
|
* Unmap an area, or simply replace it by an empty mapping if it is
|
|
* in a reserved area. The csVirtual section must be held by caller.
|
|
*/
|
|
static inline void unmap_area( void *addr, size_t size )
|
|
{
|
|
switch (wine_mmap_is_in_reserved_area( addr, size ))
|
|
{
|
|
case -1: /* partially in a reserved area */
|
|
{
|
|
struct area_boundary area;
|
|
size_t lower_size;
|
|
area.base = addr;
|
|
area.size = size;
|
|
wine_mmap_enum_reserved_areas( get_area_boundary_callback, &area, 0 );
|
|
assert( area.boundary );
|
|
lower_size = (char *)area.boundary - (char *)addr;
|
|
unmap_area( addr, lower_size );
|
|
unmap_area( area.boundary, size - lower_size );
|
|
break;
|
|
}
|
|
case 1: /* in a reserved area */
|
|
wine_anon_mmap( addr, size, PROT_NONE, MAP_NORESERVE | MAP_FIXED );
|
|
break;
|
|
default:
|
|
case 0: /* not in a reserved area */
|
|
if (is_beyond_limit( addr, size, user_space_limit ))
|
|
add_reserved_area( addr, size );
|
|
else
|
|
munmap( addr, size );
|
|
break;
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* alloc_view
|
|
*
|
|
* Allocate a new view. The csVirtual section must be held by caller.
|
|
*/
|
|
static struct file_view *alloc_view(void)
|
|
{
|
|
if (next_free_view)
|
|
{
|
|
struct file_view *ret = next_free_view;
|
|
next_free_view = *(struct file_view **)ret;
|
|
return ret;
|
|
}
|
|
if (view_block_start == view_block_end)
|
|
{
|
|
void *ptr = wine_anon_mmap( NULL, view_block_size, PROT_READ | PROT_WRITE, 0 );
|
|
if (ptr == (void *)-1) return NULL;
|
|
view_block_start = ptr;
|
|
view_block_end = view_block_start + view_block_size / sizeof(*view_block_start);
|
|
}
|
|
return view_block_start++;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* delete_view
|
|
*
|
|
* Deletes a view. The csVirtual section must be held by caller.
|
|
*/
|
|
static void delete_view( struct file_view *view ) /* [in] View */
|
|
{
|
|
if (!(view->protect & VPROT_SYSTEM)) unmap_area( view->base, view->size );
|
|
set_page_vprot( view->base, view->size, 0 );
|
|
wine_rb_remove( &views_tree, &view->entry );
|
|
*(struct file_view **)view = next_free_view;
|
|
next_free_view = view;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* create_view
|
|
*
|
|
* Create a view. The csVirtual section must be held by caller.
|
|
*/
|
|
static NTSTATUS create_view( struct file_view **view_ret, void *base, size_t size, unsigned int vprot )
|
|
{
|
|
struct file_view *view;
|
|
int unix_prot = VIRTUAL_GetUnixProt( vprot );
|
|
|
|
assert( !((UINT_PTR)base & page_mask) );
|
|
assert( !(size & page_mask) );
|
|
|
|
/* Check for overlapping views. This can happen if the previous view
|
|
* was a system view that got unmapped behind our back. In that case
|
|
* we recover by simply deleting it. */
|
|
|
|
while ((view = find_view_range( base, size )))
|
|
{
|
|
TRACE( "overlapping view %p-%p for %p-%p\n",
|
|
view->base, (char *)view->base + view->size, base, (char *)base + size );
|
|
assert( view->protect & VPROT_SYSTEM );
|
|
delete_view( view );
|
|
}
|
|
|
|
if (!alloc_pages_vprot( base, size )) return STATUS_NO_MEMORY;
|
|
|
|
/* Create the view structure */
|
|
|
|
if (!(view = alloc_view()))
|
|
{
|
|
FIXME( "out of memory for %p-%p\n", base, (char *)base + size );
|
|
return STATUS_NO_MEMORY;
|
|
}
|
|
|
|
view->base = base;
|
|
view->size = size;
|
|
view->protect = vprot;
|
|
set_page_vprot( base, size, vprot );
|
|
|
|
wine_rb_put( &views_tree, view->base, &view->entry );
|
|
|
|
*view_ret = view;
|
|
|
|
if (force_exec_prot && (unix_prot & PROT_READ) && !(unix_prot & PROT_EXEC))
|
|
{
|
|
TRACE( "forcing exec permission on %p-%p\n", base, (char *)base + size - 1 );
|
|
mprotect( base, size, unix_prot | PROT_EXEC );
|
|
}
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* VIRTUAL_GetWin32Prot
|
|
*
|
|
* Convert page protections to Win32 flags.
|
|
*/
|
|
static DWORD VIRTUAL_GetWin32Prot( BYTE vprot, unsigned int map_prot )
|
|
{
|
|
DWORD ret = VIRTUAL_Win32Flags[vprot & 0x0f];
|
|
if (vprot & VPROT_GUARD) ret |= PAGE_GUARD;
|
|
if (map_prot & SEC_NOCACHE) ret |= PAGE_NOCACHE;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* get_vprot_flags
|
|
*
|
|
* Build page protections from Win32 flags.
|
|
*
|
|
* PARAMS
|
|
* protect [I] Win32 protection flags
|
|
*
|
|
* RETURNS
|
|
* Value of page protection flags
|
|
*/
|
|
static NTSTATUS get_vprot_flags( DWORD protect, unsigned int *vprot, BOOL image )
|
|
{
|
|
switch(protect & 0xff)
|
|
{
|
|
case PAGE_READONLY:
|
|
*vprot = VPROT_READ;
|
|
break;
|
|
case PAGE_READWRITE:
|
|
if (image)
|
|
*vprot = VPROT_READ | VPROT_WRITECOPY;
|
|
else
|
|
*vprot = VPROT_READ | VPROT_WRITE;
|
|
break;
|
|
case PAGE_WRITECOPY:
|
|
*vprot = VPROT_READ | VPROT_WRITECOPY;
|
|
break;
|
|
case PAGE_EXECUTE:
|
|
*vprot = VPROT_EXEC;
|
|
break;
|
|
case PAGE_EXECUTE_READ:
|
|
*vprot = VPROT_EXEC | VPROT_READ;
|
|
break;
|
|
case PAGE_EXECUTE_READWRITE:
|
|
if (image)
|
|
*vprot = VPROT_EXEC | VPROT_READ | VPROT_WRITECOPY;
|
|
else
|
|
*vprot = VPROT_EXEC | VPROT_READ | VPROT_WRITE;
|
|
break;
|
|
case PAGE_EXECUTE_WRITECOPY:
|
|
*vprot = VPROT_EXEC | VPROT_READ | VPROT_WRITECOPY;
|
|
break;
|
|
case PAGE_NOACCESS:
|
|
*vprot = 0;
|
|
break;
|
|
default:
|
|
return STATUS_INVALID_PAGE_PROTECTION;
|
|
}
|
|
if (protect & PAGE_GUARD) *vprot |= VPROT_GUARD;
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* mprotect_exec
|
|
*
|
|
* Wrapper for mprotect, adds PROT_EXEC if forced by force_exec_prot
|
|
*/
|
|
static inline int mprotect_exec( void *base, size_t size, int unix_prot )
|
|
{
|
|
if (force_exec_prot && (unix_prot & PROT_READ) && !(unix_prot & PROT_EXEC))
|
|
{
|
|
TRACE( "forcing exec permission on %p-%p\n", base, (char *)base + size - 1 );
|
|
if (!mprotect( base, size, unix_prot | PROT_EXEC )) return 0;
|
|
/* exec + write may legitimately fail, in that case fall back to write only */
|
|
if (!(unix_prot & PROT_WRITE)) return -1;
|
|
}
|
|
|
|
return mprotect( base, size, unix_prot );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* mprotect_range
|
|
*
|
|
* Call mprotect on a page range, applying the protections from the per-page byte.
|
|
*/
|
|
static void mprotect_range( void *base, size_t size, BYTE set, BYTE clear )
|
|
{
|
|
size_t i, count;
|
|
char *addr = ROUND_ADDR( base, page_mask );
|
|
int prot, next;
|
|
|
|
size = ROUND_SIZE( base, size );
|
|
prot = VIRTUAL_GetUnixProt( (get_page_vprot( addr ) & ~clear ) | set );
|
|
for (count = i = 1; i < size >> page_shift; i++, count++)
|
|
{
|
|
next = VIRTUAL_GetUnixProt( (get_page_vprot( addr + (count << page_shift) ) & ~clear) | set );
|
|
if (next == prot) continue;
|
|
mprotect_exec( addr, count << page_shift, prot );
|
|
addr += count << page_shift;
|
|
prot = next;
|
|
count = 0;
|
|
}
|
|
if (count) mprotect_exec( addr, count << page_shift, prot );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* VIRTUAL_SetProt
|
|
*
|
|
* Change the protection of a range of pages.
|
|
*
|
|
* RETURNS
|
|
* TRUE: Success
|
|
* FALSE: Failure
|
|
*/
|
|
static BOOL VIRTUAL_SetProt( struct file_view *view, /* [in] Pointer to view */
|
|
void *base, /* [in] Starting address */
|
|
size_t size, /* [in] Size in bytes */
|
|
BYTE vprot ) /* [in] Protections to use */
|
|
{
|
|
int unix_prot = VIRTUAL_GetUnixProt(vprot);
|
|
|
|
if (view->protect & VPROT_WRITEWATCH)
|
|
{
|
|
/* each page may need different protections depending on write watch flag */
|
|
set_page_vprot_bits( base, size, vprot & ~VPROT_WRITEWATCH, ~vprot & ~VPROT_WRITEWATCH );
|
|
mprotect_range( base, size, 0, 0 );
|
|
return TRUE;
|
|
}
|
|
|
|
/* if setting stack guard pages, store the permissions first, as the guard may be
|
|
* triggered at any point after mprotect and change the permissions again */
|
|
if ((vprot & VPROT_GUARD) &&
|
|
(base >= NtCurrentTeb()->DeallocationStack) &&
|
|
(base < NtCurrentTeb()->Tib.StackBase))
|
|
{
|
|
set_page_vprot( base, size, vprot );
|
|
mprotect( base, size, unix_prot );
|
|
return TRUE;
|
|
}
|
|
|
|
if (mprotect_exec( base, size, unix_prot )) /* FIXME: last error */
|
|
return FALSE;
|
|
|
|
set_page_vprot( base, size, vprot );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* set_protection
|
|
*
|
|
* Set page protections on a range of pages
|
|
*/
|
|
static NTSTATUS set_protection( struct file_view *view, void *base, SIZE_T size, ULONG protect )
|
|
{
|
|
unsigned int vprot;
|
|
NTSTATUS status;
|
|
|
|
if ((status = get_vprot_flags( protect, &vprot, view->protect & SEC_IMAGE ))) return status;
|
|
if (is_view_valloc( view ))
|
|
{
|
|
if (vprot & VPROT_WRITECOPY) return STATUS_INVALID_PAGE_PROTECTION;
|
|
}
|
|
else
|
|
{
|
|
BYTE access = vprot & (VPROT_READ | VPROT_WRITE | VPROT_EXEC);
|
|
if ((view->protect & access) != access) return STATUS_INVALID_PAGE_PROTECTION;
|
|
}
|
|
|
|
if (!VIRTUAL_SetProt( view, base, size, vprot | VPROT_COMMITTED )) return STATUS_ACCESS_DENIED;
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* update_write_watches
|
|
*/
|
|
static void update_write_watches( void *base, size_t size, size_t accessed_size )
|
|
{
|
|
TRACE( "updating watch %p-%p-%p\n", base, (char *)base + accessed_size, (char *)base + size );
|
|
/* clear write watch flag on accessed pages */
|
|
set_page_vprot_bits( base, accessed_size, 0, VPROT_WRITEWATCH );
|
|
/* restore page protections on the entire range */
|
|
mprotect_range( base, size, 0, 0 );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* reset_write_watches
|
|
*
|
|
* Reset write watches in a memory range.
|
|
*/
|
|
static void reset_write_watches( void *base, SIZE_T size )
|
|
{
|
|
set_page_vprot_bits( base, size, VPROT_WRITEWATCH, 0 );
|
|
mprotect_range( base, size, 0, 0 );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* unmap_extra_space
|
|
*
|
|
* Release the extra memory while keeping the range starting on the granularity boundary.
|
|
*/
|
|
static inline void *unmap_extra_space( void *ptr, size_t total_size, size_t wanted_size, size_t mask )
|
|
{
|
|
if ((ULONG_PTR)ptr & mask)
|
|
{
|
|
size_t extra = mask + 1 - ((ULONG_PTR)ptr & mask);
|
|
munmap( ptr, extra );
|
|
ptr = (char *)ptr + extra;
|
|
total_size -= extra;
|
|
}
|
|
if (total_size > wanted_size)
|
|
munmap( (char *)ptr + wanted_size, total_size - wanted_size );
|
|
return ptr;
|
|
}
|
|
|
|
|
|
struct alloc_area
|
|
{
|
|
size_t size;
|
|
size_t mask;
|
|
int top_down;
|
|
void *limit;
|
|
void *result;
|
|
};
|
|
|
|
/***********************************************************************
|
|
* alloc_reserved_area_callback
|
|
*
|
|
* Try to map some space inside a reserved area. Callback for wine_mmap_enum_reserved_areas.
|
|
*/
|
|
static int alloc_reserved_area_callback( void *start, size_t size, void *arg )
|
|
{
|
|
struct alloc_area *alloc = arg;
|
|
void *end = (char *)start + size;
|
|
|
|
if (start < address_space_start) start = address_space_start;
|
|
if (is_beyond_limit( start, size, alloc->limit )) end = alloc->limit;
|
|
if (start >= end) return 0;
|
|
|
|
/* make sure we don't touch the preloader reserved range */
|
|
if (preload_reserve_end >= start)
|
|
{
|
|
if (preload_reserve_end >= end)
|
|
{
|
|
if (preload_reserve_start <= start) return 0; /* no space in that area */
|
|
if (preload_reserve_start < end) end = preload_reserve_start;
|
|
}
|
|
else if (preload_reserve_start <= start) start = preload_reserve_end;
|
|
else
|
|
{
|
|
/* range is split in two by the preloader reservation, try first part */
|
|
if ((alloc->result = find_free_area( start, preload_reserve_start, alloc->size,
|
|
alloc->mask, alloc->top_down )))
|
|
return 1;
|
|
/* then fall through to try second part */
|
|
start = preload_reserve_end;
|
|
}
|
|
}
|
|
if ((alloc->result = find_free_area( start, end, alloc->size, alloc->mask, alloc->top_down )))
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* map_fixed_area
|
|
*
|
|
* mmap the fixed memory area.
|
|
* The csVirtual section must be held by caller.
|
|
*/
|
|
static NTSTATUS map_fixed_area( void *base, size_t size, unsigned int vprot )
|
|
{
|
|
void *ptr;
|
|
|
|
switch (wine_mmap_is_in_reserved_area( base, size ))
|
|
{
|
|
case -1: /* partially in a reserved area */
|
|
{
|
|
NTSTATUS status;
|
|
struct area_boundary area;
|
|
size_t lower_size;
|
|
area.base = base;
|
|
area.size = size;
|
|
wine_mmap_enum_reserved_areas( get_area_boundary_callback, &area, 0 );
|
|
assert( area.boundary );
|
|
lower_size = (char *)area.boundary - (char *)base;
|
|
status = map_fixed_area( base, lower_size, vprot );
|
|
if (status == STATUS_SUCCESS)
|
|
{
|
|
status = map_fixed_area( area.boundary, size - lower_size, vprot);
|
|
if (status != STATUS_SUCCESS) unmap_area( base, lower_size );
|
|
}
|
|
return status;
|
|
}
|
|
case 0: /* not in a reserved area, do a normal allocation */
|
|
if ((ptr = wine_anon_mmap( base, size, VIRTUAL_GetUnixProt(vprot), 0 )) == (void *)-1)
|
|
{
|
|
if (errno == ENOMEM) return STATUS_NO_MEMORY;
|
|
return STATUS_INVALID_PARAMETER;
|
|
}
|
|
if (ptr != base)
|
|
{
|
|
/* We couldn't get the address we wanted */
|
|
if (is_beyond_limit( ptr, size, user_space_limit )) add_reserved_area( ptr, size );
|
|
else munmap( ptr, size );
|
|
return STATUS_CONFLICTING_ADDRESSES;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
case 1: /* in a reserved area, make sure the address is available */
|
|
if (find_view_range( base, size )) return STATUS_CONFLICTING_ADDRESSES;
|
|
/* replace the reserved area by our mapping */
|
|
if ((ptr = wine_anon_mmap( base, size, VIRTUAL_GetUnixProt(vprot), MAP_FIXED )) != base)
|
|
return STATUS_INVALID_PARAMETER;
|
|
break;
|
|
}
|
|
if (is_beyond_limit( ptr, size, working_set_limit )) working_set_limit = address_space_limit;
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* map_view
|
|
*
|
|
* Create a view and mmap the corresponding memory area.
|
|
* The csVirtual section must be held by caller.
|
|
*/
|
|
static NTSTATUS map_view( struct file_view **view_ret, void *base, size_t size, size_t mask,
|
|
int top_down, unsigned int vprot )
|
|
{
|
|
void *ptr;
|
|
NTSTATUS status;
|
|
|
|
if (base)
|
|
{
|
|
if (is_beyond_limit( base, size, address_space_limit ))
|
|
return STATUS_WORKING_SET_LIMIT_RANGE;
|
|
status = map_fixed_area( base, size, vprot );
|
|
if (status != STATUS_SUCCESS) return status;
|
|
ptr = base;
|
|
}
|
|
else
|
|
{
|
|
size_t view_size = size + mask + 1;
|
|
struct alloc_area alloc;
|
|
|
|
alloc.size = size;
|
|
alloc.mask = mask;
|
|
alloc.top_down = top_down;
|
|
alloc.limit = user_space_limit;
|
|
if (wine_mmap_enum_reserved_areas( alloc_reserved_area_callback, &alloc, top_down ))
|
|
{
|
|
ptr = alloc.result;
|
|
TRACE( "got mem in reserved area %p-%p\n", ptr, (char *)ptr + size );
|
|
if (wine_anon_mmap( ptr, size, VIRTUAL_GetUnixProt(vprot), MAP_FIXED ) != ptr)
|
|
return STATUS_INVALID_PARAMETER;
|
|
goto done;
|
|
}
|
|
|
|
for (;;)
|
|
{
|
|
if ((ptr = wine_anon_mmap( NULL, view_size, VIRTUAL_GetUnixProt(vprot), 0 )) == (void *)-1)
|
|
{
|
|
if (errno == ENOMEM) return STATUS_NO_MEMORY;
|
|
return STATUS_INVALID_PARAMETER;
|
|
}
|
|
TRACE( "got mem with anon mmap %p-%p\n", ptr, (char *)ptr + size );
|
|
/* if we got something beyond the user limit, unmap it and retry */
|
|
if (is_beyond_limit( ptr, view_size, user_space_limit )) add_reserved_area( ptr, view_size );
|
|
else break;
|
|
}
|
|
ptr = unmap_extra_space( ptr, view_size, size, mask );
|
|
}
|
|
done:
|
|
status = create_view( view_ret, ptr, size, vprot );
|
|
if (status != STATUS_SUCCESS) unmap_area( ptr, size );
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* map_file_into_view
|
|
*
|
|
* Wrapper for mmap() to map a file into a view, falling back to read if mmap fails.
|
|
* The csVirtual section must be held by caller.
|
|
*/
|
|
static NTSTATUS map_file_into_view( struct file_view *view, int fd, size_t start, size_t size,
|
|
off_t offset, unsigned int vprot, BOOL removable )
|
|
{
|
|
void *ptr;
|
|
int prot = VIRTUAL_GetUnixProt( vprot | VPROT_COMMITTED /* make sure it is accessible */ );
|
|
unsigned int flags = MAP_FIXED | ((vprot & VPROT_WRITECOPY) ? MAP_PRIVATE : MAP_SHARED);
|
|
|
|
assert( start < view->size );
|
|
assert( start + size <= view->size );
|
|
|
|
if (force_exec_prot && (vprot & VPROT_READ))
|
|
{
|
|
TRACE( "forcing exec permission on mapping %p-%p\n",
|
|
(char *)view->base + start, (char *)view->base + start + size - 1 );
|
|
prot |= PROT_EXEC;
|
|
}
|
|
|
|
/* only try mmap if media is not removable (or if we require write access) */
|
|
if (!removable || (flags & MAP_SHARED))
|
|
{
|
|
if (mmap( (char *)view->base + start, size, prot, flags, fd, offset ) != (void *)-1)
|
|
goto done;
|
|
|
|
if ((errno == EPERM) && (prot & PROT_EXEC))
|
|
ERR( "failed to set %08x protection on file map, noexec filesystem?\n", prot );
|
|
|
|
/* mmap() failed; if this is because the file offset is not */
|
|
/* page-aligned (EINVAL), or because the underlying filesystem */
|
|
/* does not support mmap() (ENOEXEC,ENODEV), we do it by hand. */
|
|
if ((errno != ENOEXEC) && (errno != EINVAL) && (errno != ENODEV)) return FILE_GetNtStatus();
|
|
if (flags & MAP_SHARED) /* we cannot fake shared mappings */
|
|
{
|
|
if (errno == EINVAL) return STATUS_INVALID_PARAMETER;
|
|
ERR( "shared writable mmap not supported, broken filesystem?\n" );
|
|
return STATUS_NOT_SUPPORTED;
|
|
}
|
|
}
|
|
|
|
/* Reserve the memory with an anonymous mmap */
|
|
ptr = wine_anon_mmap( (char *)view->base + start, size, PROT_READ | PROT_WRITE, MAP_FIXED );
|
|
if (ptr == (void *)-1) return FILE_GetNtStatus();
|
|
/* Now read in the file */
|
|
pread( fd, ptr, size, offset );
|
|
if (prot != (PROT_READ|PROT_WRITE)) mprotect( ptr, size, prot ); /* Set the right protection */
|
|
done:
|
|
set_page_vprot( (char *)view->base + start, size, vprot );
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* get_committed_size
|
|
*
|
|
* Get the size of the committed range starting at base.
|
|
* Also return the protections for the first page.
|
|
*/
|
|
static SIZE_T get_committed_size( struct file_view *view, void *base, BYTE *vprot )
|
|
{
|
|
SIZE_T i, start;
|
|
|
|
start = ((char *)base - (char *)view->base) >> page_shift;
|
|
*vprot = get_page_vprot( base );
|
|
|
|
if (view->protect & SEC_RESERVE)
|
|
{
|
|
SIZE_T ret = 0;
|
|
SERVER_START_REQ( get_mapping_committed_range )
|
|
{
|
|
req->base = wine_server_client_ptr( view->base );
|
|
req->offset = start << page_shift;
|
|
if (!wine_server_call( req ))
|
|
{
|
|
ret = reply->size;
|
|
if (reply->committed)
|
|
{
|
|
*vprot |= VPROT_COMMITTED;
|
|
set_page_vprot_bits( base, ret, VPROT_COMMITTED, 0 );
|
|
}
|
|
}
|
|
}
|
|
SERVER_END_REQ;
|
|
return ret;
|
|
}
|
|
for (i = start + 1; i < view->size >> page_shift; i++)
|
|
if ((*vprot ^ get_page_vprot( (char *)view->base + (i << page_shift) )) & VPROT_COMMITTED) break;
|
|
return (i - start) << page_shift;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* decommit_view
|
|
*
|
|
* Decommit some pages of a given view.
|
|
* The csVirtual section must be held by caller.
|
|
*/
|
|
static NTSTATUS decommit_pages( struct file_view *view, size_t start, size_t size )
|
|
{
|
|
if (wine_anon_mmap( (char *)view->base + start, size, PROT_NONE, MAP_FIXED ) != (void *)-1)
|
|
{
|
|
set_page_vprot_bits( (char *)view->base + start, size, 0, VPROT_COMMITTED );
|
|
return STATUS_SUCCESS;
|
|
}
|
|
return FILE_GetNtStatus();
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* allocate_dos_memory
|
|
*
|
|
* Allocate the DOS memory range.
|
|
*/
|
|
static NTSTATUS allocate_dos_memory( struct file_view **view, unsigned int vprot )
|
|
{
|
|
size_t size;
|
|
void *addr = NULL;
|
|
void * const low_64k = (void *)0x10000;
|
|
const size_t dosmem_size = 0x110000;
|
|
int unix_prot = VIRTUAL_GetUnixProt( vprot );
|
|
|
|
/* check for existing view */
|
|
|
|
if (find_view_range( 0, dosmem_size )) return STATUS_CONFLICTING_ADDRESSES;
|
|
|
|
/* check without the first 64K */
|
|
|
|
if (wine_mmap_is_in_reserved_area( low_64k, dosmem_size - 0x10000 ) != 1)
|
|
{
|
|
addr = wine_anon_mmap( low_64k, dosmem_size - 0x10000, unix_prot, 0 );
|
|
if (addr != low_64k)
|
|
{
|
|
if (addr != (void *)-1) munmap( addr, dosmem_size - 0x10000 );
|
|
return map_view( view, NULL, dosmem_size, 0xffff, 0, vprot );
|
|
}
|
|
}
|
|
|
|
/* now try to allocate the low 64K too */
|
|
|
|
if (wine_mmap_is_in_reserved_area( NULL, 0x10000 ) != 1)
|
|
{
|
|
addr = wine_anon_mmap( (void *)page_size, 0x10000 - page_size, unix_prot, 0 );
|
|
if (addr == (void *)page_size)
|
|
{
|
|
if (!wine_anon_mmap( NULL, page_size, unix_prot, MAP_FIXED ))
|
|
{
|
|
addr = NULL;
|
|
TRACE( "successfully mapped low 64K range\n" );
|
|
}
|
|
else TRACE( "failed to map page 0\n" );
|
|
}
|
|
else
|
|
{
|
|
if (addr != (void *)-1) munmap( addr, 0x10000 - page_size );
|
|
addr = low_64k;
|
|
TRACE( "failed to map low 64K range\n" );
|
|
}
|
|
}
|
|
|
|
/* now reserve the whole range */
|
|
|
|
size = (char *)dosmem_size - (char *)addr;
|
|
wine_anon_mmap( addr, size, unix_prot, MAP_FIXED );
|
|
return create_view( view, addr, size, vprot );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* map_image
|
|
*
|
|
* Map an executable (PE format) image into memory.
|
|
*/
|
|
static NTSTATUS map_image( HANDLE hmapping, ACCESS_MASK access, int fd, char *base, SIZE_T total_size,
|
|
SIZE_T mask, SIZE_T header_size, int shared_fd, BOOL removable, PVOID *addr_ptr )
|
|
{
|
|
IMAGE_DOS_HEADER *dos;
|
|
IMAGE_NT_HEADERS *nt;
|
|
IMAGE_SECTION_HEADER sections[96];
|
|
IMAGE_SECTION_HEADER *sec;
|
|
IMAGE_DATA_DIRECTORY *imports;
|
|
NTSTATUS status = STATUS_CONFLICTING_ADDRESSES;
|
|
int i;
|
|
off_t pos;
|
|
sigset_t sigset;
|
|
struct stat st;
|
|
struct file_view *view = NULL;
|
|
char *ptr, *header_end, *header_start;
|
|
|
|
/* zero-map the whole range */
|
|
|
|
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, 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, SEC_IMAGE | SEC_FILE |
|
|
VPROT_COMMITTED | VPROT_READ | VPROT_EXEC | VPROT_WRITECOPY );
|
|
|
|
if (status != STATUS_SUCCESS) goto error;
|
|
|
|
ptr = view->base;
|
|
TRACE_(module)( "mapped PE file at %p-%p\n", ptr, ptr + total_size );
|
|
|
|
/* map the header */
|
|
|
|
if (fstat( fd, &st ) == -1)
|
|
{
|
|
status = FILE_GetNtStatus();
|
|
goto error;
|
|
}
|
|
status = STATUS_INVALID_IMAGE_FORMAT; /* generic error */
|
|
if (!st.st_size) goto error;
|
|
header_size = min( header_size, st.st_size );
|
|
if (map_file_into_view( view, fd, 0, header_size, 0, VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY,
|
|
removable ) != STATUS_SUCCESS) goto error;
|
|
dos = (IMAGE_DOS_HEADER *)ptr;
|
|
nt = (IMAGE_NT_HEADERS *)(ptr + dos->e_lfanew);
|
|
header_end = ptr + ROUND_SIZE( 0, header_size );
|
|
memset( ptr + header_size, 0, header_end - (ptr + header_size) );
|
|
if ((char *)(nt + 1) > header_end) goto error;
|
|
header_start = (char*)&nt->OptionalHeader+nt->FileHeader.SizeOfOptionalHeader;
|
|
if (nt->FileHeader.NumberOfSections > sizeof(sections)/sizeof(*sections)) goto error;
|
|
if (header_start + sizeof(*sections) * nt->FileHeader.NumberOfSections > header_end) goto error;
|
|
/* Some applications (e.g. the Steam version of Borderlands) map over the top of the section headers,
|
|
* copying the headers into local memory is necessary to properly load such applications. */
|
|
memcpy(sections, header_start, sizeof(*sections) * nt->FileHeader.NumberOfSections);
|
|
sec = sections;
|
|
|
|
imports = nt->OptionalHeader.DataDirectory + IMAGE_DIRECTORY_ENTRY_IMPORT;
|
|
if (!imports->Size || !imports->VirtualAddress) imports = NULL;
|
|
|
|
/* check for non page-aligned binary */
|
|
|
|
if (nt->OptionalHeader.SectionAlignment <= page_mask)
|
|
{
|
|
/* unaligned sections, this happens for native subsystem binaries */
|
|
/* in that case Windows simply maps in the whole file */
|
|
|
|
if (map_file_into_view( view, fd, 0, total_size, 0, VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY,
|
|
removable ) != STATUS_SUCCESS) goto error;
|
|
|
|
/* check that all sections are loaded at the right offset */
|
|
if (nt->OptionalHeader.FileAlignment != nt->OptionalHeader.SectionAlignment) goto error;
|
|
for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
|
|
{
|
|
if (sec[i].VirtualAddress != sec[i].PointerToRawData)
|
|
goto error; /* Windows refuses to load in that case too */
|
|
}
|
|
|
|
/* set the image protections */
|
|
VIRTUAL_SetProt( view, ptr, total_size,
|
|
VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY | VPROT_EXEC );
|
|
|
|
/* no relocations are performed on non page-aligned binaries */
|
|
goto done;
|
|
}
|
|
|
|
|
|
/* map all the sections */
|
|
|
|
for (i = pos = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
|
|
{
|
|
static const SIZE_T sector_align = 0x1ff;
|
|
SIZE_T map_size, file_start, file_size, end;
|
|
|
|
if (!sec->Misc.VirtualSize)
|
|
map_size = ROUND_SIZE( 0, sec->SizeOfRawData );
|
|
else
|
|
map_size = ROUND_SIZE( 0, sec->Misc.VirtualSize );
|
|
|
|
/* file positions are rounded to sector boundaries regardless of OptionalHeader.FileAlignment */
|
|
file_start = sec->PointerToRawData & ~sector_align;
|
|
file_size = (sec->SizeOfRawData + (sec->PointerToRawData & sector_align) + sector_align) & ~sector_align;
|
|
if (file_size > map_size) file_size = map_size;
|
|
|
|
/* a few sanity checks */
|
|
end = sec->VirtualAddress + ROUND_SIZE( sec->VirtualAddress, map_size );
|
|
if (sec->VirtualAddress > total_size || end > total_size || end < sec->VirtualAddress)
|
|
{
|
|
WARN_(module)( "Section %.8s too large (%x+%lx/%lx)\n",
|
|
sec->Name, sec->VirtualAddress, map_size, total_size );
|
|
goto error;
|
|
}
|
|
|
|
if ((sec->Characteristics & IMAGE_SCN_MEM_SHARED) &&
|
|
(sec->Characteristics & IMAGE_SCN_MEM_WRITE))
|
|
{
|
|
TRACE_(module)( "mapping shared section %.8s at %p off %x (%x) size %lx (%lx) flags %x\n",
|
|
sec->Name, ptr + sec->VirtualAddress,
|
|
sec->PointerToRawData, (int)pos, file_size, map_size,
|
|
sec->Characteristics );
|
|
if (map_file_into_view( view, shared_fd, sec->VirtualAddress, map_size, pos,
|
|
VPROT_COMMITTED | VPROT_READ | VPROT_WRITE, FALSE ) != STATUS_SUCCESS)
|
|
{
|
|
ERR_(module)( "Could not map shared section %.8s\n", sec->Name );
|
|
goto error;
|
|
}
|
|
|
|
/* check if the import directory falls inside this section */
|
|
if (imports && imports->VirtualAddress >= sec->VirtualAddress &&
|
|
imports->VirtualAddress < sec->VirtualAddress + map_size)
|
|
{
|
|
UINT_PTR base = imports->VirtualAddress & ~page_mask;
|
|
UINT_PTR end = base + ROUND_SIZE( imports->VirtualAddress, imports->Size );
|
|
if (end > sec->VirtualAddress + map_size) end = sec->VirtualAddress + map_size;
|
|
if (end > base)
|
|
map_file_into_view( view, shared_fd, base, end - base,
|
|
pos + (base - sec->VirtualAddress),
|
|
VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY, FALSE );
|
|
}
|
|
pos += map_size;
|
|
continue;
|
|
}
|
|
|
|
TRACE_(module)( "mapping section %.8s at %p off %x size %x virt %x flags %x\n",
|
|
sec->Name, ptr + sec->VirtualAddress,
|
|
sec->PointerToRawData, sec->SizeOfRawData,
|
|
sec->Misc.VirtualSize, sec->Characteristics );
|
|
|
|
if (!sec->PointerToRawData || !file_size) continue;
|
|
|
|
/* Note: if the section is not aligned properly map_file_into_view will magically
|
|
* fall back to read(), so we don't need to check anything here.
|
|
*/
|
|
end = file_start + file_size;
|
|
if (sec->PointerToRawData >= st.st_size ||
|
|
end > ((st.st_size + sector_align) & ~sector_align) ||
|
|
end < file_start ||
|
|
map_file_into_view( view, fd, sec->VirtualAddress, file_size, file_start,
|
|
VPROT_COMMITTED | VPROT_READ | VPROT_WRITECOPY,
|
|
removable ) != STATUS_SUCCESS)
|
|
{
|
|
ERR_(module)( "Could not map section %.8s, file probably truncated\n", sec->Name );
|
|
goto error;
|
|
}
|
|
|
|
if (file_size & page_mask)
|
|
{
|
|
end = ROUND_SIZE( 0, file_size );
|
|
if (end > map_size) end = map_size;
|
|
TRACE_(module)("clearing %p - %p\n",
|
|
ptr + sec->VirtualAddress + file_size,
|
|
ptr + sec->VirtualAddress + end );
|
|
memset( ptr + sec->VirtualAddress + file_size, 0, end - file_size );
|
|
}
|
|
}
|
|
|
|
/* set the image protections */
|
|
|
|
VIRTUAL_SetProt( view, ptr, ROUND_SIZE( 0, header_size ), VPROT_COMMITTED | VPROT_READ );
|
|
|
|
sec = sections;
|
|
for (i = 0; i < nt->FileHeader.NumberOfSections; i++, sec++)
|
|
{
|
|
SIZE_T size;
|
|
BYTE vprot = VPROT_COMMITTED;
|
|
|
|
if (sec->Misc.VirtualSize)
|
|
size = ROUND_SIZE( sec->VirtualAddress, sec->Misc.VirtualSize );
|
|
else
|
|
size = ROUND_SIZE( sec->VirtualAddress, sec->SizeOfRawData );
|
|
|
|
if (sec->Characteristics & IMAGE_SCN_MEM_READ) vprot |= VPROT_READ;
|
|
if (sec->Characteristics & IMAGE_SCN_MEM_WRITE) vprot |= VPROT_WRITECOPY;
|
|
if (sec->Characteristics & IMAGE_SCN_MEM_EXECUTE) vprot |= VPROT_EXEC;
|
|
|
|
/* Dumb game crack lets the AOEP point into a data section. Adjust. */
|
|
if ((nt->OptionalHeader.AddressOfEntryPoint >= sec->VirtualAddress) &&
|
|
(nt->OptionalHeader.AddressOfEntryPoint < sec->VirtualAddress + size))
|
|
vprot |= VPROT_EXEC;
|
|
|
|
if (!VIRTUAL_SetProt( view, ptr + sec->VirtualAddress, size, vprot ) && (vprot & VPROT_EXEC))
|
|
ERR( "failed to set %08x protection on section %.8s, noexec filesystem?\n",
|
|
sec->Characteristics, sec->Name );
|
|
}
|
|
|
|
done:
|
|
|
|
SERVER_START_REQ( map_view )
|
|
{
|
|
req->mapping = wine_server_obj_handle( hmapping );
|
|
req->access = access;
|
|
req->base = wine_server_client_ptr( view->base );
|
|
req->size = view->size;
|
|
req->start = 0;
|
|
status = wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
if (status) goto error;
|
|
|
|
VIRTUAL_DEBUG_DUMP_VIEW( view );
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
*addr_ptr = ptr;
|
|
#ifdef VALGRIND_LOAD_PDB_DEBUGINFO
|
|
VALGRIND_LOAD_PDB_DEBUGINFO(fd, ptr, total_size, ptr - base);
|
|
#endif
|
|
if (ptr != base) return STATUS_IMAGE_NOT_AT_BASE;
|
|
return STATUS_SUCCESS;
|
|
|
|
error:
|
|
if (view) delete_view( view );
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return status;
|
|
}
|
|
|
|
|
|
struct alloc_virtual_heap
|
|
{
|
|
void *base;
|
|
size_t size;
|
|
};
|
|
|
|
/* callback for wine_mmap_enum_reserved_areas to allocate space for the virtual heap */
|
|
static int alloc_virtual_heap( void *base, size_t size, void *arg )
|
|
{
|
|
struct alloc_virtual_heap *alloc = arg;
|
|
|
|
if (is_beyond_limit( base, size, address_space_limit )) address_space_limit = (char *)base + size;
|
|
if (size < alloc->size) return 0;
|
|
if (is_win64 && base < (void *)0x80000000) return 0;
|
|
alloc->base = wine_anon_mmap( (char *)base + size - alloc->size, alloc->size,
|
|
PROT_READ|PROT_WRITE, MAP_FIXED );
|
|
return (alloc->base != (void *)-1);
|
|
}
|
|
|
|
/***********************************************************************
|
|
* virtual_init
|
|
*/
|
|
void virtual_init(void)
|
|
{
|
|
const char *preload;
|
|
struct alloc_virtual_heap alloc_views;
|
|
size_t size;
|
|
|
|
#if !defined(__i386__) && !defined(__x86_64__)
|
|
page_size = sysconf( _SC_PAGESIZE );
|
|
page_mask = page_size - 1;
|
|
/* Make sure we have a power of 2 */
|
|
assert( !(page_size & page_mask) );
|
|
page_shift = 0;
|
|
while ((1 << page_shift) != page_size) page_shift++;
|
|
#ifdef _WIN64
|
|
address_space_limit = (void *)(((1UL << 47) - 1) & ~page_mask);
|
|
#else
|
|
address_space_limit = (void *)~page_mask;
|
|
#endif
|
|
user_space_limit = working_set_limit = address_space_limit;
|
|
#endif
|
|
if ((preload = getenv("WINEPRELOADRESERVE")))
|
|
{
|
|
unsigned long start, end;
|
|
if (sscanf( preload, "%lx-%lx", &start, &end ) == 2)
|
|
{
|
|
preload_reserve_start = (void *)start;
|
|
preload_reserve_end = (void *)end;
|
|
/* some apps start inside the DOS area */
|
|
if (preload_reserve_start)
|
|
address_space_start = min( address_space_start, preload_reserve_start );
|
|
}
|
|
}
|
|
|
|
/* try to find space in a reserved area for the views and pages protection table */
|
|
#ifdef _WIN64
|
|
pages_vprot_size = ((size_t)address_space_limit >> page_shift >> pages_vprot_shift) + 1;
|
|
alloc_views.size = view_block_size + pages_vprot_size * sizeof(*pages_vprot);
|
|
#else
|
|
alloc_views.size = view_block_size + (1U << (32 - page_shift));
|
|
#endif
|
|
if (wine_mmap_enum_reserved_areas( alloc_virtual_heap, &alloc_views, 1 ))
|
|
wine_mmap_remove_reserved_area( alloc_views.base, alloc_views.size, 0 );
|
|
else
|
|
alloc_views.base = wine_anon_mmap( NULL, alloc_views.size, PROT_READ | PROT_WRITE, 0 );
|
|
|
|
assert( alloc_views.base != (void *)-1 );
|
|
view_block_start = alloc_views.base;
|
|
view_block_end = view_block_start + view_block_size / sizeof(*view_block_start);
|
|
pages_vprot = (void *)((char *)alloc_views.base + view_block_size);
|
|
wine_rb_init( &views_tree, compare_view );
|
|
|
|
/* make the DOS area accessible (except the low 64K) to hide bugs in broken apps like Excel 2003 */
|
|
size = (char *)address_space_start - (char *)0x10000;
|
|
if (size && wine_mmap_is_in_reserved_area( (void*)0x10000, size ) == 1)
|
|
wine_anon_mmap( (void *)0x10000, size, PROT_READ | PROT_WRITE, MAP_FIXED );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_init_threading
|
|
*/
|
|
void virtual_init_threading(void)
|
|
{
|
|
use_locks = TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_get_system_info
|
|
*/
|
|
void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info )
|
|
{
|
|
#ifdef HAVE_SYSINFO
|
|
struct sysinfo sinfo;
|
|
#endif
|
|
|
|
info->unknown = 0;
|
|
info->KeMaximumIncrement = 0; /* FIXME */
|
|
info->PageSize = page_size;
|
|
info->MmLowestPhysicalPage = 1;
|
|
info->MmHighestPhysicalPage = 0x7fffffff / page_size;
|
|
#ifdef HAVE_SYSINFO
|
|
if (!sysinfo(&sinfo))
|
|
{
|
|
ULONG64 total = (ULONG64)sinfo.totalram * sinfo.mem_unit;
|
|
info->MmHighestPhysicalPage = max(1, total / page_size);
|
|
}
|
|
#endif
|
|
info->MmNumberOfPhysicalPages = info->MmHighestPhysicalPage - info->MmLowestPhysicalPage;
|
|
info->AllocationGranularity = get_mask(0) + 1;
|
|
info->LowestUserAddress = (void *)0x10000;
|
|
info->HighestUserAddress = (char *)user_space_limit - 1;
|
|
info->ActiveProcessorsAffinityMask = get_system_affinity_mask();
|
|
info->NumberOfProcessors = NtCurrentTeb()->Peb->NumberOfProcessors;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_create_builtin_view
|
|
*/
|
|
NTSTATUS virtual_create_builtin_view( void *module )
|
|
{
|
|
NTSTATUS status;
|
|
sigset_t sigset;
|
|
IMAGE_NT_HEADERS *nt = RtlImageNtHeader( module );
|
|
SIZE_T size = nt->OptionalHeader.SizeOfImage;
|
|
IMAGE_SECTION_HEADER *sec;
|
|
struct file_view *view;
|
|
void *base;
|
|
int i;
|
|
|
|
size = ROUND_SIZE( module, size );
|
|
base = ROUND_ADDR( module, page_mask );
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
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 );
|
|
|
|
/* The PE header is always read-only, no write, no execute. */
|
|
set_page_vprot( base, page_size, VPROT_COMMITTED | VPROT_READ );
|
|
|
|
sec = (IMAGE_SECTION_HEADER *)((char *)&nt->OptionalHeader + nt->FileHeader.SizeOfOptionalHeader);
|
|
for (i = 0; i < nt->FileHeader.NumberOfSections; i++)
|
|
{
|
|
BYTE flags = VPROT_COMMITTED;
|
|
|
|
if (sec[i].Characteristics & IMAGE_SCN_MEM_EXECUTE) flags |= VPROT_EXEC;
|
|
if (sec[i].Characteristics & IMAGE_SCN_MEM_READ) flags |= VPROT_READ;
|
|
if (sec[i].Characteristics & IMAGE_SCN_MEM_WRITE) flags |= VPROT_WRITE;
|
|
set_page_vprot( (char *)base + sec[i].VirtualAddress, sec[i].Misc.VirtualSize, flags );
|
|
}
|
|
VIRTUAL_DEBUG_DUMP_VIEW( view );
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_alloc_thread_stack
|
|
*/
|
|
NTSTATUS virtual_alloc_thread_stack( TEB *teb, SIZE_T reserve_size, SIZE_T commit_size )
|
|
{
|
|
struct file_view *view;
|
|
NTSTATUS status;
|
|
sigset_t sigset;
|
|
SIZE_T size;
|
|
|
|
if (!reserve_size || !commit_size)
|
|
{
|
|
IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
|
|
if (!reserve_size) reserve_size = nt->OptionalHeader.SizeOfStackReserve;
|
|
if (!commit_size) commit_size = nt->OptionalHeader.SizeOfStackCommit;
|
|
}
|
|
|
|
size = max( reserve_size, commit_size );
|
|
if (size < 1024 * 1024) size = 1024 * 1024; /* Xlib needs a large stack */
|
|
size = (size + 0xffff) & ~0xffff; /* round to 64K boundary */
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
if ((status = map_view( &view, NULL, size, 0xffff, 0,
|
|
VPROT_READ | VPROT_WRITE | VPROT_COMMITTED )) != STATUS_SUCCESS)
|
|
goto done;
|
|
|
|
#ifdef VALGRIND_STACK_REGISTER
|
|
VALGRIND_STACK_REGISTER( view->base, (char *)view->base + view->size );
|
|
#endif
|
|
|
|
/* setup no access guard page */
|
|
set_page_vprot( view->base, page_size, VPROT_COMMITTED );
|
|
set_page_vprot( (char *)view->base + page_size, page_size,
|
|
VPROT_READ | VPROT_WRITE | VPROT_COMMITTED | VPROT_GUARD );
|
|
mprotect_range( view->base, 2 * page_size, 0, 0 );
|
|
VIRTUAL_DEBUG_DUMP_VIEW( view );
|
|
|
|
/* note: limit is lower than base since the stack grows down */
|
|
teb->DeallocationStack = view->base;
|
|
teb->Tib.StackBase = (char *)view->base + view->size;
|
|
teb->Tib.StackLimit = (char *)view->base + 2 * page_size;
|
|
done:
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_clear_thread_stack
|
|
*
|
|
* Clear the stack contents before calling the main entry point, some broken apps need that.
|
|
*/
|
|
void virtual_clear_thread_stack(void)
|
|
{
|
|
void *stack = NtCurrentTeb()->Tib.StackLimit;
|
|
size_t size = (char *)NtCurrentTeb()->Tib.StackBase - (char *)NtCurrentTeb()->Tib.StackLimit;
|
|
|
|
wine_anon_mmap( stack, size - page_size, PROT_READ | PROT_WRITE, MAP_FIXED );
|
|
if (force_exec_prot) mprotect( stack, size - page_size, PROT_READ | PROT_WRITE | PROT_EXEC );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_handle_fault
|
|
*/
|
|
NTSTATUS virtual_handle_fault( LPCVOID addr, DWORD err, BOOL on_signal_stack )
|
|
{
|
|
NTSTATUS ret = STATUS_ACCESS_VIOLATION;
|
|
void *page = ROUND_ADDR( addr, page_mask );
|
|
sigset_t sigset;
|
|
BYTE vprot;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
vprot = get_page_vprot( page );
|
|
if (!on_signal_stack && (vprot & VPROT_GUARD))
|
|
{
|
|
set_page_vprot_bits( page, page_size, 0, VPROT_GUARD );
|
|
mprotect_range( page, page_size, 0, 0 );
|
|
ret = STATUS_GUARD_PAGE_VIOLATION;
|
|
}
|
|
else if (err & EXCEPTION_WRITE_FAULT)
|
|
{
|
|
if (vprot & VPROT_WRITEWATCH)
|
|
{
|
|
set_page_vprot_bits( page, page_size, 0, VPROT_WRITEWATCH );
|
|
mprotect_range( page, page_size, 0, 0 );
|
|
}
|
|
/* ignore fault if page is writable now */
|
|
if (VIRTUAL_GetUnixProt( get_page_vprot( page )) & PROT_WRITE)
|
|
{
|
|
if ((vprot & VPROT_WRITEWATCH) || is_write_watch_range( page, page_size ))
|
|
ret = STATUS_SUCCESS;
|
|
}
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* check_write_access
|
|
*
|
|
* Check if the memory range is writable, temporarily disabling write watches if necessary.
|
|
*/
|
|
static NTSTATUS check_write_access( void *base, size_t size, BOOL *has_write_watch )
|
|
{
|
|
size_t i;
|
|
char *addr = ROUND_ADDR( base, page_mask );
|
|
|
|
size = ROUND_SIZE( base, size );
|
|
for (i = 0; i < size; i += page_size)
|
|
{
|
|
BYTE vprot = get_page_vprot( addr + i );
|
|
if (vprot & VPROT_WRITEWATCH) *has_write_watch = TRUE;
|
|
if (!(VIRTUAL_GetUnixProt( vprot & ~VPROT_WRITEWATCH ) & PROT_WRITE))
|
|
return STATUS_INVALID_USER_BUFFER;
|
|
}
|
|
if (*has_write_watch)
|
|
mprotect_range( addr, size, 0, VPROT_WRITEWATCH ); /* temporarily enable write access */
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_locked_server_call
|
|
*/
|
|
unsigned int virtual_locked_server_call( void *req_ptr )
|
|
{
|
|
struct __server_request_info * const req = req_ptr;
|
|
sigset_t sigset;
|
|
void *addr = req->reply_data;
|
|
data_size_t size = req->u.req.request_header.reply_size;
|
|
BOOL has_write_watch = FALSE;
|
|
unsigned int ret = STATUS_ACCESS_VIOLATION;
|
|
|
|
if (!size) return wine_server_call( req_ptr );
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
if (!(ret = check_write_access( addr, size, &has_write_watch )))
|
|
{
|
|
ret = server_call_unlocked( req );
|
|
if (has_write_watch) update_write_watches( addr, size, wine_server_reply_size( req ));
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_locked_read
|
|
*/
|
|
ssize_t virtual_locked_read( int fd, void *addr, size_t size )
|
|
{
|
|
sigset_t sigset;
|
|
BOOL has_write_watch = FALSE;
|
|
int err = EFAULT;
|
|
|
|
ssize_t ret = read( fd, addr, size );
|
|
if (ret != -1 || errno != EFAULT) return ret;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
if (!check_write_access( addr, size, &has_write_watch ))
|
|
{
|
|
ret = read( fd, addr, size );
|
|
err = errno;
|
|
if (has_write_watch) update_write_watches( addr, size, max( 0, ret ));
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
errno = err;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_locked_pread
|
|
*/
|
|
ssize_t virtual_locked_pread( int fd, void *addr, size_t size, off_t offset )
|
|
{
|
|
sigset_t sigset;
|
|
BOOL has_write_watch = FALSE;
|
|
int err = EFAULT;
|
|
|
|
ssize_t ret = pread( fd, addr, size, offset );
|
|
if (ret != -1 || errno != EFAULT) return ret;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
if (!check_write_access( addr, size, &has_write_watch ))
|
|
{
|
|
ret = pread( fd, addr, size, offset );
|
|
err = errno;
|
|
if (has_write_watch) update_write_watches( addr, size, max( 0, ret ));
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
errno = err;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* __wine_locked_recvmsg
|
|
*/
|
|
ssize_t CDECL __wine_locked_recvmsg( int fd, struct msghdr *hdr, int flags )
|
|
{
|
|
sigset_t sigset;
|
|
size_t i;
|
|
BOOL has_write_watch = FALSE;
|
|
int err = EFAULT;
|
|
|
|
ssize_t ret = recvmsg( fd, hdr, flags );
|
|
if (ret != -1 || errno != EFAULT) return ret;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
for (i = 0; i < hdr->msg_iovlen; i++)
|
|
if (check_write_access( hdr->msg_iov[i].iov_base, hdr->msg_iov[i].iov_len, &has_write_watch ))
|
|
break;
|
|
if (i == hdr->msg_iovlen)
|
|
{
|
|
ret = recvmsg( fd, hdr, flags );
|
|
err = errno;
|
|
}
|
|
if (has_write_watch)
|
|
while (i--) update_write_watches( hdr->msg_iov[i].iov_base, hdr->msg_iov[i].iov_len, 0 );
|
|
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
errno = err;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_is_valid_code_address
|
|
*/
|
|
BOOL virtual_is_valid_code_address( const void *addr, SIZE_T size )
|
|
{
|
|
struct file_view *view;
|
|
BOOL ret = FALSE;
|
|
sigset_t sigset;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
if ((view = VIRTUAL_FindView( addr, size )))
|
|
ret = !(view->protect & VPROT_SYSTEM); /* system views are not visible to the app */
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_handle_stack_fault
|
|
*
|
|
* Handle an access fault inside the current thread stack.
|
|
* Called from inside a signal handler.
|
|
*/
|
|
BOOL virtual_handle_stack_fault( void *addr )
|
|
{
|
|
BOOL ret = FALSE;
|
|
|
|
RtlEnterCriticalSection( &csVirtual ); /* no need for signal masking inside signal handler */
|
|
if (get_page_vprot( addr ) & VPROT_GUARD)
|
|
{
|
|
char *page = ROUND_ADDR( addr, page_mask );
|
|
set_page_vprot_bits( page, page_size, 0, VPROT_GUARD );
|
|
mprotect_range( page, page_size, 0, 0 );
|
|
NtCurrentTeb()->Tib.StackLimit = page;
|
|
if (page >= (char *)NtCurrentTeb()->DeallocationStack + 2*page_size)
|
|
{
|
|
page -= page_size;
|
|
set_page_vprot_bits( page, page_size, VPROT_COMMITTED | VPROT_GUARD, 0 );
|
|
mprotect_range( page, page_size, 0, 0 );
|
|
}
|
|
ret = TRUE;
|
|
}
|
|
RtlLeaveCriticalSection( &csVirtual );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_check_buffer_for_read
|
|
*
|
|
* Check if a memory buffer can be read, triggering page faults if needed for DIB section access.
|
|
*/
|
|
BOOL virtual_check_buffer_for_read( const void *ptr, SIZE_T size )
|
|
{
|
|
if (!size) return TRUE;
|
|
if (!ptr) return FALSE;
|
|
|
|
__TRY
|
|
{
|
|
volatile const char *p = ptr;
|
|
char dummy __attribute__((unused));
|
|
SIZE_T count = size;
|
|
|
|
while (count > page_size)
|
|
{
|
|
dummy = *p;
|
|
p += page_size;
|
|
count -= page_size;
|
|
}
|
|
dummy = p[0];
|
|
dummy = p[count - 1];
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
return FALSE;
|
|
}
|
|
__ENDTRY
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_check_buffer_for_write
|
|
*
|
|
* Check if a memory buffer can be written to, triggering page faults if needed for write watches.
|
|
*/
|
|
BOOL virtual_check_buffer_for_write( void *ptr, SIZE_T size )
|
|
{
|
|
if (!size) return TRUE;
|
|
if (!ptr) return FALSE;
|
|
|
|
__TRY
|
|
{
|
|
volatile char *p = ptr;
|
|
SIZE_T count = size;
|
|
|
|
while (count > page_size)
|
|
{
|
|
*p |= 0;
|
|
p += page_size;
|
|
count -= page_size;
|
|
}
|
|
p[0] |= 0;
|
|
p[count - 1] |= 0;
|
|
}
|
|
__EXCEPT_PAGE_FAULT
|
|
{
|
|
return FALSE;
|
|
}
|
|
__ENDTRY
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_uninterrupted_read_memory
|
|
*
|
|
* Similar to NtReadVirtualMemory, but without wineserver calls. Moreover
|
|
* permissions are checked before accessing each page, to ensure that no
|
|
* exceptions can happen.
|
|
*/
|
|
SIZE_T virtual_uninterrupted_read_memory( const void *addr, void *buffer, SIZE_T size )
|
|
{
|
|
struct file_view *view;
|
|
sigset_t sigset;
|
|
SIZE_T bytes_read = 0;
|
|
|
|
if (!size) return 0;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
if ((view = VIRTUAL_FindView( addr, size )))
|
|
{
|
|
if (!(view->protect & VPROT_SYSTEM))
|
|
{
|
|
char *page = ROUND_ADDR( addr, page_mask );
|
|
|
|
while (bytes_read < size && (VIRTUAL_GetUnixProt( get_page_vprot( page )) & PROT_READ))
|
|
{
|
|
SIZE_T block_size = min( size, page_size - ((UINT_PTR)addr & page_mask) );
|
|
memcpy( buffer, addr, block_size );
|
|
|
|
addr = (const void *)((const char *)addr + block_size);
|
|
buffer = (void *)((char *)buffer + block_size);
|
|
bytes_read += block_size;
|
|
page += page_size;
|
|
}
|
|
}
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return bytes_read;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_uninterrupted_write_memory
|
|
*
|
|
* Similar to NtWriteVirtualMemory, but without wineserver calls. Moreover
|
|
* permissions are checked before accessing each page, to ensure that no
|
|
* exceptions can happen.
|
|
*/
|
|
NTSTATUS virtual_uninterrupted_write_memory( void *addr, const void *buffer, SIZE_T size )
|
|
{
|
|
BOOL has_write_watch = FALSE;
|
|
sigset_t sigset;
|
|
NTSTATUS ret;
|
|
|
|
if (!size) return STATUS_SUCCESS;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
if (!(ret = check_write_access( addr, size, &has_write_watch )))
|
|
{
|
|
memcpy( addr, buffer, size );
|
|
if (has_write_watch) update_write_watches( addr, size, size );
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* VIRTUAL_SetForceExec
|
|
*
|
|
* Whether to force exec prot on all views.
|
|
*/
|
|
void VIRTUAL_SetForceExec( BOOL enable )
|
|
{
|
|
struct file_view *view;
|
|
sigset_t sigset;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
if (!force_exec_prot != !enable) /* change all existing views */
|
|
{
|
|
force_exec_prot = enable;
|
|
|
|
WINE_RB_FOR_EACH_ENTRY( view, &views_tree, struct file_view, entry )
|
|
{
|
|
/* file mappings are always accessible */
|
|
BYTE commit = is_view_valloc( view ) ? 0 : VPROT_COMMITTED;
|
|
|
|
mprotect_range( view->base, view->size, commit, 0 );
|
|
}
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
}
|
|
|
|
struct free_range
|
|
{
|
|
char *base;
|
|
char *limit;
|
|
};
|
|
|
|
/* free reserved areas above the limit; callback for wine_mmap_enum_reserved_areas */
|
|
static int free_reserved_memory( void *base, size_t size, void *arg )
|
|
{
|
|
struct free_range *range = arg;
|
|
|
|
if ((char *)base >= range->limit) return 0;
|
|
if ((char *)base + size <= range->base) return 0;
|
|
if ((char *)base < range->base)
|
|
{
|
|
size -= range->base - (char *)base;
|
|
base = range->base;
|
|
}
|
|
if ((char *)base + size > range->limit) size = range->limit - (char *)base;
|
|
remove_reserved_area( base, size );
|
|
return 1; /* stop enumeration since the list has changed */
|
|
}
|
|
|
|
/***********************************************************************
|
|
* virtual_release_address_space
|
|
*
|
|
* Release some address space once we have loaded and initialized the app.
|
|
*/
|
|
void virtual_release_address_space(void)
|
|
{
|
|
struct free_range range;
|
|
sigset_t sigset;
|
|
|
|
if (is_win64) return;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
range.base = (char *)0x82000000;
|
|
range.limit = user_space_limit;
|
|
|
|
if (range.limit > range.base)
|
|
{
|
|
while (wine_mmap_enum_reserved_areas( free_reserved_memory, &range, 1 )) /* nothing */;
|
|
}
|
|
else
|
|
{
|
|
#ifndef __APPLE__ /* dyld doesn't support parts of the WINE_DOS segment being unmapped */
|
|
range.base = (char *)0x20000000;
|
|
range.limit = (char *)0x7f000000;
|
|
while (wine_mmap_enum_reserved_areas( free_reserved_memory, &range, 0 )) /* nothing */;
|
|
#endif
|
|
}
|
|
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* virtual_set_large_address_space
|
|
*
|
|
* Enable use of a large address space when allowed by the application.
|
|
*/
|
|
void virtual_set_large_address_space(void)
|
|
{
|
|
IMAGE_NT_HEADERS *nt = RtlImageNtHeader( NtCurrentTeb()->Peb->ImageBaseAddress );
|
|
|
|
if (!(nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE)) return;
|
|
/* no large address space on win9x */
|
|
if (NtCurrentTeb()->Peb->OSPlatformId != VER_PLATFORM_WIN32_NT) return;
|
|
|
|
user_space_limit = working_set_limit = address_space_limit;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtAllocateVirtualMemory (NTDLL.@)
|
|
* ZwAllocateVirtualMemory (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtAllocateVirtualMemory( HANDLE process, PVOID *ret, ULONG zero_bits,
|
|
SIZE_T *size_ptr, ULONG type, ULONG protect )
|
|
{
|
|
void *base;
|
|
unsigned int vprot;
|
|
SIZE_T size = *size_ptr;
|
|
SIZE_T mask = get_mask( zero_bits );
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
BOOL is_dos_memory = FALSE;
|
|
struct file_view *view;
|
|
sigset_t sigset;
|
|
|
|
TRACE("%p %p %08lx %x %08x\n", process, *ret, size, type, protect );
|
|
|
|
if (!size) return STATUS_INVALID_PARAMETER;
|
|
if (!mask) return STATUS_INVALID_PARAMETER_3;
|
|
|
|
if (process != NtCurrentProcess())
|
|
{
|
|
apc_call_t call;
|
|
apc_result_t result;
|
|
|
|
memset( &call, 0, sizeof(call) );
|
|
|
|
call.virtual_alloc.type = APC_VIRTUAL_ALLOC;
|
|
call.virtual_alloc.addr = wine_server_client_ptr( *ret );
|
|
call.virtual_alloc.size = *size_ptr;
|
|
call.virtual_alloc.zero_bits = zero_bits;
|
|
call.virtual_alloc.op_type = type;
|
|
call.virtual_alloc.prot = protect;
|
|
status = server_queue_process_apc( process, &call, &result );
|
|
if (status != STATUS_SUCCESS) return status;
|
|
|
|
if (result.virtual_alloc.status == STATUS_SUCCESS)
|
|
{
|
|
*ret = wine_server_get_ptr( result.virtual_alloc.addr );
|
|
*size_ptr = result.virtual_alloc.size;
|
|
}
|
|
return result.virtual_alloc.status;
|
|
}
|
|
|
|
/* Round parameters to a page boundary */
|
|
|
|
if (is_beyond_limit( 0, size, working_set_limit )) return STATUS_WORKING_SET_LIMIT_RANGE;
|
|
|
|
if (*ret)
|
|
{
|
|
if (type & MEM_RESERVE) /* Round down to 64k boundary */
|
|
base = ROUND_ADDR( *ret, mask );
|
|
else
|
|
base = ROUND_ADDR( *ret, page_mask );
|
|
size = (((UINT_PTR)*ret + size + page_mask) & ~page_mask) - (UINT_PTR)base;
|
|
|
|
/* disallow low 64k, wrap-around and kernel space */
|
|
if (((char *)base < (char *)0x10000) ||
|
|
((char *)base + size < (char *)base) ||
|
|
is_beyond_limit( base, size, address_space_limit ))
|
|
{
|
|
/* address 1 is magic to mean DOS area */
|
|
if (!base && *ret == (void *)1 && size == 0x110000) is_dos_memory = TRUE;
|
|
else return STATUS_INVALID_PARAMETER;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
base = NULL;
|
|
size = (size + page_mask) & ~page_mask;
|
|
}
|
|
|
|
/* Compute the alloc type flags */
|
|
|
|
if (!(type & (MEM_COMMIT | MEM_RESERVE | MEM_RESET)) ||
|
|
(type & ~(MEM_COMMIT | MEM_RESERVE | MEM_TOP_DOWN | MEM_WRITE_WATCH | MEM_RESET)))
|
|
{
|
|
WARN("called with wrong alloc type flags (%08x) !\n", type);
|
|
return STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
/* Reserve the memory */
|
|
|
|
if (use_locks) server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
if ((type & MEM_RESERVE) || !base)
|
|
{
|
|
if (!(status = get_vprot_flags( protect, &vprot, FALSE )))
|
|
{
|
|
if (type & MEM_COMMIT) vprot |= VPROT_COMMITTED;
|
|
if (type & MEM_WRITE_WATCH) vprot |= VPROT_WRITEWATCH;
|
|
if (protect & PAGE_NOCACHE) vprot |= SEC_NOCACHE;
|
|
|
|
if (vprot & VPROT_WRITECOPY) status = STATUS_INVALID_PAGE_PROTECTION;
|
|
else if (is_dos_memory) status = allocate_dos_memory( &view, vprot );
|
|
else status = map_view( &view, base, size, mask, type & MEM_TOP_DOWN, vprot );
|
|
|
|
if (status == STATUS_SUCCESS) base = view->base;
|
|
}
|
|
}
|
|
else if (type & MEM_RESET)
|
|
{
|
|
if (!(view = VIRTUAL_FindView( base, size ))) status = STATUS_NOT_MAPPED_VIEW;
|
|
else madvise( base, size, MADV_DONTNEED );
|
|
}
|
|
else /* commit the pages */
|
|
{
|
|
if (!(view = VIRTUAL_FindView( base, size ))) status = STATUS_NOT_MAPPED_VIEW;
|
|
else if (view->protect & SEC_FILE) status = STATUS_ALREADY_COMMITTED;
|
|
else if (!(status = set_protection( view, base, size, protect )) && (view->protect & SEC_RESERVE))
|
|
{
|
|
SERVER_START_REQ( add_mapping_committed_range )
|
|
{
|
|
req->base = wine_server_client_ptr( view->base );
|
|
req->offset = (char *)base - (char *)view->base;
|
|
req->size = size;
|
|
wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
}
|
|
}
|
|
|
|
if (!status) VIRTUAL_DEBUG_DUMP_VIEW( view );
|
|
|
|
if (use_locks) server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
if (status == STATUS_SUCCESS)
|
|
{
|
|
*ret = base;
|
|
*size_ptr = size;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtFreeVirtualMemory (NTDLL.@)
|
|
* ZwFreeVirtualMemory (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtFreeVirtualMemory( HANDLE process, PVOID *addr_ptr, SIZE_T *size_ptr, ULONG type )
|
|
{
|
|
struct file_view *view;
|
|
char *base;
|
|
sigset_t sigset;
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
LPVOID addr = *addr_ptr;
|
|
SIZE_T size = *size_ptr;
|
|
|
|
TRACE("%p %p %08lx %x\n", process, addr, size, type );
|
|
|
|
if (process != NtCurrentProcess())
|
|
{
|
|
apc_call_t call;
|
|
apc_result_t result;
|
|
|
|
memset( &call, 0, sizeof(call) );
|
|
|
|
call.virtual_free.type = APC_VIRTUAL_FREE;
|
|
call.virtual_free.addr = wine_server_client_ptr( addr );
|
|
call.virtual_free.size = size;
|
|
call.virtual_free.op_type = type;
|
|
status = server_queue_process_apc( process, &call, &result );
|
|
if (status != STATUS_SUCCESS) return status;
|
|
|
|
if (result.virtual_free.status == STATUS_SUCCESS)
|
|
{
|
|
*addr_ptr = wine_server_get_ptr( result.virtual_free.addr );
|
|
*size_ptr = result.virtual_free.size;
|
|
}
|
|
return result.virtual_free.status;
|
|
}
|
|
|
|
/* Fix the parameters */
|
|
|
|
size = ROUND_SIZE( addr, size );
|
|
base = ROUND_ADDR( addr, page_mask );
|
|
|
|
/* avoid freeing the DOS area when a broken app passes a NULL pointer */
|
|
if (!base) return STATUS_INVALID_PARAMETER;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
if (!(view = VIRTUAL_FindView( base, size )) || !is_view_valloc( view ))
|
|
{
|
|
status = STATUS_INVALID_PARAMETER;
|
|
}
|
|
else if (type == MEM_RELEASE)
|
|
{
|
|
/* Free the pages */
|
|
|
|
if (size || (base != view->base)) status = STATUS_INVALID_PARAMETER;
|
|
else
|
|
{
|
|
delete_view( view );
|
|
*addr_ptr = base;
|
|
*size_ptr = size;
|
|
}
|
|
}
|
|
else if (type == MEM_DECOMMIT)
|
|
{
|
|
status = decommit_pages( view, base - (char *)view->base, size );
|
|
if (status == STATUS_SUCCESS)
|
|
{
|
|
*addr_ptr = base;
|
|
*size_ptr = size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
WARN("called with wrong free type flags (%08x) !\n", type);
|
|
status = STATUS_INVALID_PARAMETER;
|
|
}
|
|
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtProtectVirtualMemory (NTDLL.@)
|
|
* ZwProtectVirtualMemory (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtProtectVirtualMemory( HANDLE process, PVOID *addr_ptr, SIZE_T *size_ptr,
|
|
ULONG new_prot, ULONG *old_prot )
|
|
{
|
|
struct file_view *view;
|
|
sigset_t sigset;
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
char *base;
|
|
BYTE vprot;
|
|
SIZE_T size = *size_ptr;
|
|
LPVOID addr = *addr_ptr;
|
|
DWORD old;
|
|
|
|
TRACE("%p %p %08lx %08x\n", process, addr, size, new_prot );
|
|
|
|
if (!old_prot)
|
|
return STATUS_ACCESS_VIOLATION;
|
|
|
|
if (process != NtCurrentProcess())
|
|
{
|
|
apc_call_t call;
|
|
apc_result_t result;
|
|
|
|
memset( &call, 0, sizeof(call) );
|
|
|
|
call.virtual_protect.type = APC_VIRTUAL_PROTECT;
|
|
call.virtual_protect.addr = wine_server_client_ptr( addr );
|
|
call.virtual_protect.size = size;
|
|
call.virtual_protect.prot = new_prot;
|
|
status = server_queue_process_apc( process, &call, &result );
|
|
if (status != STATUS_SUCCESS) return status;
|
|
|
|
if (result.virtual_protect.status == STATUS_SUCCESS)
|
|
{
|
|
*addr_ptr = wine_server_get_ptr( result.virtual_protect.addr );
|
|
*size_ptr = result.virtual_protect.size;
|
|
if (old_prot) *old_prot = result.virtual_protect.prot;
|
|
}
|
|
return result.virtual_protect.status;
|
|
}
|
|
|
|
/* Fix the parameters */
|
|
|
|
size = ROUND_SIZE( addr, size );
|
|
base = ROUND_ADDR( addr, page_mask );
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
if ((view = VIRTUAL_FindView( base, size )))
|
|
{
|
|
/* Make sure all the pages are committed */
|
|
if (get_committed_size( view, base, &vprot ) >= size && (vprot & VPROT_COMMITTED))
|
|
{
|
|
old = VIRTUAL_GetWin32Prot( vprot, view->protect );
|
|
status = set_protection( view, base, size, new_prot );
|
|
}
|
|
else status = STATUS_NOT_COMMITTED;
|
|
}
|
|
else status = STATUS_INVALID_PARAMETER;
|
|
|
|
if (!status) VIRTUAL_DEBUG_DUMP_VIEW( view );
|
|
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
if (status == STATUS_SUCCESS)
|
|
{
|
|
*addr_ptr = base;
|
|
*size_ptr = size;
|
|
*old_prot = old;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
|
|
/* retrieve state for a free memory area; callback for wine_mmap_enum_reserved_areas */
|
|
static int get_free_mem_state_callback( void *start, size_t size, void *arg )
|
|
{
|
|
MEMORY_BASIC_INFORMATION *info = arg;
|
|
void *end = (char *)start + size;
|
|
|
|
if ((char *)info->BaseAddress + info->RegionSize < (char *)start) return 0;
|
|
|
|
if (info->BaseAddress >= end)
|
|
{
|
|
if (info->AllocationBase < end) info->AllocationBase = end;
|
|
return 0;
|
|
}
|
|
|
|
if (info->BaseAddress >= start || start <= address_space_start)
|
|
{
|
|
/* it's a real free area */
|
|
info->State = MEM_FREE;
|
|
info->Protect = PAGE_NOACCESS;
|
|
info->AllocationBase = 0;
|
|
info->AllocationProtect = 0;
|
|
info->Type = 0;
|
|
if ((char *)info->BaseAddress + info->RegionSize > (char *)end)
|
|
info->RegionSize = (char *)end - (char *)info->BaseAddress;
|
|
}
|
|
else /* outside of the reserved area, pretend it's allocated */
|
|
{
|
|
info->RegionSize = (char *)start - (char *)info->BaseAddress;
|
|
info->State = MEM_RESERVE;
|
|
info->Protect = PAGE_NOACCESS;
|
|
info->AllocationProtect = PAGE_NOACCESS;
|
|
info->Type = MEM_PRIVATE;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
#define UNIMPLEMENTED_INFO_CLASS(c) \
|
|
case c: \
|
|
FIXME("(process=%p,addr=%p) Unimplemented information class: " #c "\n", process, addr); \
|
|
return STATUS_INVALID_INFO_CLASS
|
|
|
|
/***********************************************************************
|
|
* NtQueryVirtualMemory (NTDLL.@)
|
|
* ZwQueryVirtualMemory (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtQueryVirtualMemory( HANDLE process, LPCVOID addr,
|
|
MEMORY_INFORMATION_CLASS info_class, PVOID buffer,
|
|
SIZE_T len, SIZE_T *res_len )
|
|
{
|
|
struct file_view *view;
|
|
char *base, *alloc_base = 0, *alloc_end = working_set_limit;
|
|
struct wine_rb_entry *ptr;
|
|
MEMORY_BASIC_INFORMATION *info = buffer;
|
|
sigset_t sigset;
|
|
|
|
if (info_class != MemoryBasicInformation)
|
|
{
|
|
switch(info_class)
|
|
{
|
|
UNIMPLEMENTED_INFO_CLASS(MemoryWorkingSetList);
|
|
UNIMPLEMENTED_INFO_CLASS(MemorySectionName);
|
|
UNIMPLEMENTED_INFO_CLASS(MemoryBasicVlmInformation);
|
|
|
|
default:
|
|
FIXME("(%p,%p,info_class=%d,%p,%ld,%p) Unknown information class\n",
|
|
process, addr, info_class, buffer, len, res_len);
|
|
return STATUS_INVALID_INFO_CLASS;
|
|
}
|
|
}
|
|
|
|
if (process != NtCurrentProcess())
|
|
{
|
|
NTSTATUS status;
|
|
apc_call_t call;
|
|
apc_result_t result;
|
|
|
|
memset( &call, 0, sizeof(call) );
|
|
|
|
call.virtual_query.type = APC_VIRTUAL_QUERY;
|
|
call.virtual_query.addr = wine_server_client_ptr( addr );
|
|
status = server_queue_process_apc( process, &call, &result );
|
|
if (status != STATUS_SUCCESS) return status;
|
|
|
|
if (result.virtual_query.status == STATUS_SUCCESS)
|
|
{
|
|
info->BaseAddress = wine_server_get_ptr( result.virtual_query.base );
|
|
info->AllocationBase = wine_server_get_ptr( result.virtual_query.alloc_base );
|
|
info->RegionSize = result.virtual_query.size;
|
|
info->Protect = result.virtual_query.prot;
|
|
info->AllocationProtect = result.virtual_query.alloc_prot;
|
|
info->State = (DWORD)result.virtual_query.state << 12;
|
|
info->Type = (DWORD)result.virtual_query.alloc_type << 16;
|
|
if (info->RegionSize != result.virtual_query.size) /* truncated */
|
|
return STATUS_INVALID_PARAMETER; /* FIXME */
|
|
if (res_len) *res_len = sizeof(*info);
|
|
}
|
|
return result.virtual_query.status;
|
|
}
|
|
|
|
base = ROUND_ADDR( addr, page_mask );
|
|
|
|
if (is_beyond_limit( base, 1, working_set_limit )) return STATUS_WORKING_SET_LIMIT_RANGE;
|
|
|
|
/* Find the view containing the address */
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
ptr = views_tree.root;
|
|
while (ptr)
|
|
{
|
|
view = WINE_RB_ENTRY_VALUE( ptr, struct file_view, entry );
|
|
if ((char *)view->base > base)
|
|
{
|
|
alloc_end = view->base;
|
|
ptr = ptr->left;
|
|
}
|
|
else if ((char *)view->base + view->size <= base)
|
|
{
|
|
alloc_base = (char *)view->base + view->size;
|
|
ptr = ptr->right;
|
|
}
|
|
else
|
|
{
|
|
alloc_base = view->base;
|
|
alloc_end = (char *)view->base + view->size;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Fill the info structure */
|
|
|
|
info->AllocationBase = alloc_base;
|
|
info->BaseAddress = base;
|
|
info->RegionSize = alloc_end - base;
|
|
|
|
if (!ptr)
|
|
{
|
|
if (!wine_mmap_enum_reserved_areas( get_free_mem_state_callback, info, 0 ))
|
|
{
|
|
/* not in a reserved area at all, pretend it's allocated */
|
|
#ifdef __i386__
|
|
if (base >= (char *)address_space_start)
|
|
{
|
|
info->State = MEM_RESERVE;
|
|
info->Protect = PAGE_NOACCESS;
|
|
info->AllocationProtect = PAGE_NOACCESS;
|
|
info->Type = MEM_PRIVATE;
|
|
}
|
|
else
|
|
#endif
|
|
{
|
|
info->State = MEM_FREE;
|
|
info->Protect = PAGE_NOACCESS;
|
|
info->AllocationBase = 0;
|
|
info->AllocationProtect = 0;
|
|
info->Type = 0;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BYTE vprot;
|
|
char *ptr;
|
|
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, view->protect ) : 0;
|
|
info->AllocationProtect = VIRTUAL_GetWin32Prot( view->protect, view->protect );
|
|
if (view->protect & SEC_IMAGE) info->Type = MEM_IMAGE;
|
|
else if (view->protect & (SEC_FILE | SEC_RESERVE | SEC_COMMIT)) info->Type = MEM_MAPPED;
|
|
else info->Type = MEM_PRIVATE;
|
|
for (ptr = base; ptr < base + range_size; ptr += page_size)
|
|
if ((get_page_vprot( ptr ) ^ vprot) & ~VPROT_WRITEWATCH) break;
|
|
info->RegionSize = ptr - base;
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
if (res_len) *res_len = sizeof(*info);
|
|
return STATUS_SUCCESS;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtLockVirtualMemory (NTDLL.@)
|
|
* ZwLockVirtualMemory (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtLockVirtualMemory( HANDLE process, PVOID *addr, SIZE_T *size, ULONG unknown )
|
|
{
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
|
|
if (process != NtCurrentProcess())
|
|
{
|
|
apc_call_t call;
|
|
apc_result_t result;
|
|
|
|
memset( &call, 0, sizeof(call) );
|
|
|
|
call.virtual_lock.type = APC_VIRTUAL_LOCK;
|
|
call.virtual_lock.addr = wine_server_client_ptr( *addr );
|
|
call.virtual_lock.size = *size;
|
|
status = server_queue_process_apc( process, &call, &result );
|
|
if (status != STATUS_SUCCESS) return status;
|
|
|
|
if (result.virtual_lock.status == STATUS_SUCCESS)
|
|
{
|
|
*addr = wine_server_get_ptr( result.virtual_lock.addr );
|
|
*size = result.virtual_lock.size;
|
|
}
|
|
return result.virtual_lock.status;
|
|
}
|
|
|
|
*size = ROUND_SIZE( *addr, *size );
|
|
*addr = ROUND_ADDR( *addr, page_mask );
|
|
|
|
if (mlock( *addr, *size )) status = STATUS_ACCESS_DENIED;
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtUnlockVirtualMemory (NTDLL.@)
|
|
* ZwUnlockVirtualMemory (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtUnlockVirtualMemory( HANDLE process, PVOID *addr, SIZE_T *size, ULONG unknown )
|
|
{
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
|
|
if (process != NtCurrentProcess())
|
|
{
|
|
apc_call_t call;
|
|
apc_result_t result;
|
|
|
|
memset( &call, 0, sizeof(call) );
|
|
|
|
call.virtual_unlock.type = APC_VIRTUAL_UNLOCK;
|
|
call.virtual_unlock.addr = wine_server_client_ptr( *addr );
|
|
call.virtual_unlock.size = *size;
|
|
status = server_queue_process_apc( process, &call, &result );
|
|
if (status != STATUS_SUCCESS) return status;
|
|
|
|
if (result.virtual_unlock.status == STATUS_SUCCESS)
|
|
{
|
|
*addr = wine_server_get_ptr( result.virtual_unlock.addr );
|
|
*size = result.virtual_unlock.size;
|
|
}
|
|
return result.virtual_unlock.status;
|
|
}
|
|
|
|
*size = ROUND_SIZE( *addr, *size );
|
|
*addr = ROUND_ADDR( *addr, page_mask );
|
|
|
|
if (munlock( *addr, *size )) status = STATUS_ACCESS_DENIED;
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtCreateSection (NTDLL.@)
|
|
* ZwCreateSection (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtCreateSection( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr,
|
|
const LARGE_INTEGER *size, ULONG protect,
|
|
ULONG sec_flags, HANDLE file )
|
|
{
|
|
NTSTATUS ret;
|
|
unsigned int vprot, file_access = 0;
|
|
data_size_t len;
|
|
struct object_attributes *objattr;
|
|
|
|
if ((ret = get_vprot_flags( protect, &vprot, sec_flags & SEC_IMAGE ))) return ret;
|
|
if ((ret = alloc_object_attributes( attr, &objattr, &len ))) return ret;
|
|
|
|
if (vprot & VPROT_READ) file_access |= FILE_READ_DATA;
|
|
if (vprot & VPROT_WRITE) file_access |= FILE_WRITE_DATA;
|
|
|
|
SERVER_START_REQ( create_mapping )
|
|
{
|
|
req->access = access;
|
|
req->flags = sec_flags;
|
|
req->file_handle = wine_server_obj_handle( file );
|
|
req->file_access = file_access;
|
|
req->size = size ? size->QuadPart : 0;
|
|
wine_server_add_data( req, objattr, len );
|
|
ret = wine_server_call( req );
|
|
*handle = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
RtlFreeHeap( GetProcessHeap(), 0, objattr );
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtOpenSection (NTDLL.@)
|
|
* ZwOpenSection (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtOpenSection( HANDLE *handle, ACCESS_MASK access, const OBJECT_ATTRIBUTES *attr )
|
|
{
|
|
NTSTATUS ret;
|
|
|
|
if ((ret = validate_open_object_attributes( attr ))) return ret;
|
|
|
|
SERVER_START_REQ( open_mapping )
|
|
{
|
|
req->access = access;
|
|
req->attributes = attr->Attributes;
|
|
req->rootdir = wine_server_obj_handle( attr->RootDirectory );
|
|
if (attr->ObjectName)
|
|
wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
|
|
ret = wine_server_call( req );
|
|
*handle = wine_server_ptr_handle( reply->handle );
|
|
}
|
|
SERVER_END_REQ;
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtMapViewOfSection (NTDLL.@)
|
|
* ZwMapViewOfSection (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtMapViewOfSection( HANDLE handle, HANDLE process, PVOID *addr_ptr, ULONG zero_bits,
|
|
SIZE_T commit_size, const LARGE_INTEGER *offset_ptr, SIZE_T *size_ptr,
|
|
SECTION_INHERIT inherit, ULONG alloc_type, ULONG protect )
|
|
{
|
|
NTSTATUS res;
|
|
mem_size_t full_size;
|
|
ACCESS_MASK access;
|
|
SIZE_T size, mask = get_mask( zero_bits );
|
|
int unix_handle = -1, needs_close;
|
|
unsigned int vprot, sec_flags;
|
|
struct file_view *view;
|
|
pe_image_info_t image_info;
|
|
HANDLE shared_file;
|
|
LARGE_INTEGER offset;
|
|
sigset_t sigset;
|
|
|
|
offset.QuadPart = offset_ptr ? offset_ptr->QuadPart : 0;
|
|
|
|
TRACE("handle=%p process=%p addr=%p off=%x%08x size=%lx access=%x\n",
|
|
handle, process, *addr_ptr, offset.u.HighPart, offset.u.LowPart, *size_ptr, protect );
|
|
|
|
/* Check parameters */
|
|
|
|
if ((*addr_ptr && zero_bits) || !mask)
|
|
return STATUS_INVALID_PARAMETER_4;
|
|
|
|
#ifndef _WIN64
|
|
if (!is_wow64 && (alloc_type & AT_ROUND_TO_PAGE))
|
|
{
|
|
*addr_ptr = ROUND_ADDR( *addr_ptr, page_mask );
|
|
mask = page_mask;
|
|
}
|
|
#endif
|
|
|
|
if ((offset.u.LowPart & mask) || (*addr_ptr && ((UINT_PTR)*addr_ptr & mask)))
|
|
return STATUS_MAPPED_ALIGNMENT;
|
|
|
|
switch(protect)
|
|
{
|
|
case PAGE_NOACCESS:
|
|
case PAGE_READONLY:
|
|
case PAGE_WRITECOPY:
|
|
access = SECTION_MAP_READ;
|
|
break;
|
|
case PAGE_READWRITE:
|
|
access = SECTION_MAP_WRITE;
|
|
break;
|
|
case PAGE_EXECUTE:
|
|
case PAGE_EXECUTE_READ:
|
|
case PAGE_EXECUTE_WRITECOPY:
|
|
access = SECTION_MAP_READ | SECTION_MAP_EXECUTE;
|
|
break;
|
|
case PAGE_EXECUTE_READWRITE:
|
|
access = SECTION_MAP_WRITE | SECTION_MAP_EXECUTE;
|
|
break;
|
|
default:
|
|
return STATUS_INVALID_PAGE_PROTECTION;
|
|
}
|
|
|
|
if (process != NtCurrentProcess())
|
|
{
|
|
apc_call_t call;
|
|
apc_result_t result;
|
|
|
|
memset( &call, 0, sizeof(call) );
|
|
|
|
call.map_view.type = APC_MAP_VIEW;
|
|
call.map_view.handle = wine_server_obj_handle( handle );
|
|
call.map_view.addr = wine_server_client_ptr( *addr_ptr );
|
|
call.map_view.size = *size_ptr;
|
|
call.map_view.offset = offset.QuadPart;
|
|
call.map_view.zero_bits = zero_bits;
|
|
call.map_view.alloc_type = alloc_type;
|
|
call.map_view.prot = protect;
|
|
res = server_queue_process_apc( process, &call, &result );
|
|
if (res != STATUS_SUCCESS) return res;
|
|
|
|
if ((NTSTATUS)result.map_view.status >= 0)
|
|
{
|
|
*addr_ptr = wine_server_get_ptr( result.map_view.addr );
|
|
*size_ptr = result.map_view.size;
|
|
}
|
|
return result.map_view.status;
|
|
}
|
|
|
|
SERVER_START_REQ( get_mapping_info )
|
|
{
|
|
req->handle = wine_server_obj_handle( handle );
|
|
req->access = access;
|
|
wine_server_set_reply( req, &image_info, sizeof(image_info) );
|
|
res = wine_server_call( req );
|
|
sec_flags = reply->flags;
|
|
full_size = reply->size;
|
|
shared_file = wine_server_ptr_handle( reply->shared_file );
|
|
}
|
|
SERVER_END_REQ;
|
|
if (res) return res;
|
|
|
|
if ((res = server_get_unix_fd( handle, 0, &unix_handle, &needs_close, NULL, NULL ))) goto done;
|
|
|
|
if (sec_flags & SEC_IMAGE)
|
|
{
|
|
void *base = wine_server_get_ptr( image_info.base );
|
|
|
|
if ((ULONG_PTR)base != image_info.base) base = NULL;
|
|
size = image_info.map_size;
|
|
if (size != image_info.map_size) /* truncated */
|
|
{
|
|
WARN( "Modules larger than 4Gb (%s) not supported\n",
|
|
wine_dbgstr_longlong(image_info.map_size) );
|
|
res = STATUS_INVALID_PARAMETER;
|
|
goto done;
|
|
}
|
|
if (shared_file)
|
|
{
|
|
int shared_fd, shared_needs_close;
|
|
|
|
if ((res = server_get_unix_fd( shared_file, FILE_READ_DATA|FILE_WRITE_DATA,
|
|
&shared_fd, &shared_needs_close, NULL, NULL ))) goto done;
|
|
res = map_image( handle, access, unix_handle, base, size, mask, image_info.header_size,
|
|
shared_fd, needs_close, addr_ptr );
|
|
if (shared_needs_close) close( shared_fd );
|
|
close_handle( shared_file );
|
|
}
|
|
else
|
|
{
|
|
res = map_image( handle, access, unix_handle, base, size, mask, image_info.header_size,
|
|
-1, needs_close, addr_ptr );
|
|
}
|
|
if (needs_close) close( unix_handle );
|
|
if (res >= 0) *size_ptr = size;
|
|
return res;
|
|
}
|
|
|
|
res = STATUS_INVALID_PARAMETER;
|
|
if (offset.QuadPart >= full_size) goto done;
|
|
if (*size_ptr)
|
|
{
|
|
size = *size_ptr;
|
|
if (size > full_size - offset.QuadPart)
|
|
{
|
|
res = STATUS_INVALID_VIEW_SIZE;
|
|
goto done;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
size = full_size - offset.QuadPart;
|
|
if (size != full_size - offset.QuadPart) /* truncated */
|
|
{
|
|
WARN( "Files larger than 4Gb (%s) not supported on this platform\n",
|
|
wine_dbgstr_longlong(full_size) );
|
|
goto done;
|
|
}
|
|
}
|
|
if (!(size = ROUND_SIZE( 0, size ))) goto done; /* wrap-around */
|
|
|
|
/* Reserve a properly aligned area */
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
get_vprot_flags( protect, &vprot, sec_flags & SEC_IMAGE );
|
|
vprot |= sec_flags;
|
|
if (!(sec_flags & SEC_RESERVE)) vprot |= VPROT_COMMITTED;
|
|
res = map_view( &view, *addr_ptr, size, mask, FALSE, vprot );
|
|
if (res)
|
|
{
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
goto done;
|
|
}
|
|
|
|
/* Map the file */
|
|
|
|
TRACE("handle=%p size=%lx offset=%x%08x\n",
|
|
handle, size, offset.u.HighPart, offset.u.LowPart );
|
|
|
|
res = map_file_into_view( view, unix_handle, 0, size, offset.QuadPart, vprot, needs_close );
|
|
if (res == STATUS_SUCCESS)
|
|
{
|
|
SERVER_START_REQ( map_view )
|
|
{
|
|
req->mapping = wine_server_obj_handle( handle );
|
|
req->access = access;
|
|
req->base = wine_server_client_ptr( view->base );
|
|
req->size = size;
|
|
req->start = offset.QuadPart;
|
|
res = wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
}
|
|
|
|
if (res == STATUS_SUCCESS)
|
|
{
|
|
*addr_ptr = view->base;
|
|
*size_ptr = size;
|
|
VIRTUAL_DEBUG_DUMP_VIEW( view );
|
|
}
|
|
else
|
|
{
|
|
ERR( "map_file_into_view %p %lx %x%08x failed\n",
|
|
view->base, size, offset.u.HighPart, offset.u.LowPart );
|
|
delete_view( view );
|
|
}
|
|
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
done:
|
|
if (needs_close) close( unix_handle );
|
|
return res;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtUnmapViewOfSection (NTDLL.@)
|
|
* ZwUnmapViewOfSection (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtUnmapViewOfSection( HANDLE process, PVOID addr )
|
|
{
|
|
struct file_view *view;
|
|
NTSTATUS status = STATUS_NOT_MAPPED_VIEW;
|
|
sigset_t sigset;
|
|
|
|
if (process != NtCurrentProcess())
|
|
{
|
|
apc_call_t call;
|
|
apc_result_t result;
|
|
|
|
memset( &call, 0, sizeof(call) );
|
|
|
|
call.unmap_view.type = APC_UNMAP_VIEW;
|
|
call.unmap_view.addr = wine_server_client_ptr( addr );
|
|
status = server_queue_process_apc( process, &call, &result );
|
|
if (status == STATUS_SUCCESS) status = result.unmap_view.status;
|
|
return status;
|
|
}
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
if ((view = VIRTUAL_FindView( addr, 0 )) && !is_view_valloc( view ))
|
|
{
|
|
if (!(view->protect & VPROT_SYSTEM))
|
|
{
|
|
SERVER_START_REQ( unmap_view )
|
|
{
|
|
req->base = wine_server_client_ptr( view->base );
|
|
status = wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
if (!status) delete_view( view );
|
|
else FIXME( "failed to unmap %p %x\n", view->base, status );
|
|
}
|
|
else delete_view( view );
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return status;
|
|
}
|
|
|
|
|
|
/******************************************************************************
|
|
* NtQuerySection (NTDLL.@)
|
|
* ZwQuerySection (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtQuerySection( HANDLE handle, SECTION_INFORMATION_CLASS class, void *ptr,
|
|
ULONG size, ULONG *ret_size )
|
|
{
|
|
NTSTATUS status;
|
|
pe_image_info_t image_info;
|
|
|
|
switch (class)
|
|
{
|
|
case SectionBasicInformation:
|
|
if (size < sizeof(SECTION_BASIC_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
|
|
break;
|
|
case SectionImageInformation:
|
|
if (size < sizeof(SECTION_IMAGE_INFORMATION)) return STATUS_INFO_LENGTH_MISMATCH;
|
|
break;
|
|
default:
|
|
FIXME( "class %u not implemented\n", class );
|
|
return STATUS_NOT_IMPLEMENTED;
|
|
}
|
|
if (!ptr) return STATUS_ACCESS_VIOLATION;
|
|
|
|
SERVER_START_REQ( get_mapping_info )
|
|
{
|
|
req->handle = wine_server_obj_handle( handle );
|
|
req->access = SECTION_QUERY;
|
|
wine_server_set_reply( req, &image_info, sizeof(image_info) );
|
|
if (!(status = wine_server_call( req )))
|
|
{
|
|
if (class == SectionBasicInformation)
|
|
{
|
|
SECTION_BASIC_INFORMATION *info = ptr;
|
|
info->Attributes = reply->flags;
|
|
info->BaseAddress = NULL;
|
|
info->Size.QuadPart = reply->size;
|
|
if (ret_size) *ret_size = sizeof(*info);
|
|
}
|
|
else if (reply->flags & SEC_IMAGE)
|
|
{
|
|
SECTION_IMAGE_INFORMATION *info = ptr;
|
|
info->TransferAddress = wine_server_get_ptr( image_info.entry_point );
|
|
info->ZeroBits = image_info.zerobits;
|
|
info->MaximumStackSize = image_info.stack_size;
|
|
info->CommittedStackSize = image_info.stack_commit;
|
|
info->SubSystemType = image_info.subsystem;
|
|
info->SubsystemVersionLow = image_info.subsystem_low;
|
|
info->SubsystemVersionHigh = image_info.subsystem_high;
|
|
info->GpValue = image_info.gp;
|
|
info->ImageCharacteristics = image_info.image_charact;
|
|
info->DllCharacteristics = image_info.dll_charact;
|
|
info->Machine = image_info.machine;
|
|
info->ImageContainsCode = image_info.contains_code;
|
|
info->ImageFlags = image_info.image_flags;
|
|
info->LoaderFlags = image_info.loader_flags;
|
|
info->ImageFileSize = image_info.file_size;
|
|
info->CheckSum = image_info.checksum;
|
|
if (ret_size) *ret_size = sizeof(*info);
|
|
}
|
|
else status = STATUS_SECTION_NOT_IMAGE;
|
|
}
|
|
}
|
|
SERVER_END_REQ;
|
|
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtFlushVirtualMemory (NTDLL.@)
|
|
* ZwFlushVirtualMemory (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtFlushVirtualMemory( HANDLE process, LPCVOID *addr_ptr,
|
|
SIZE_T *size_ptr, ULONG unknown )
|
|
{
|
|
struct file_view *view;
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
sigset_t sigset;
|
|
void *addr = ROUND_ADDR( *addr_ptr, page_mask );
|
|
|
|
if (process != NtCurrentProcess())
|
|
{
|
|
apc_call_t call;
|
|
apc_result_t result;
|
|
|
|
memset( &call, 0, sizeof(call) );
|
|
|
|
call.virtual_flush.type = APC_VIRTUAL_FLUSH;
|
|
call.virtual_flush.addr = wine_server_client_ptr( addr );
|
|
call.virtual_flush.size = *size_ptr;
|
|
status = server_queue_process_apc( process, &call, &result );
|
|
if (status != STATUS_SUCCESS) return status;
|
|
|
|
if (result.virtual_flush.status == STATUS_SUCCESS)
|
|
{
|
|
*addr_ptr = wine_server_get_ptr( result.virtual_flush.addr );
|
|
*size_ptr = result.virtual_flush.size;
|
|
}
|
|
return result.virtual_flush.status;
|
|
}
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
if (!(view = VIRTUAL_FindView( addr, *size_ptr ))) status = STATUS_INVALID_PARAMETER;
|
|
else
|
|
{
|
|
if (!*size_ptr) *size_ptr = view->size;
|
|
*addr_ptr = addr;
|
|
#ifdef MS_ASYNC
|
|
if (msync( addr, *size_ptr, MS_ASYNC )) status = STATUS_NOT_MAPPED_DATA;
|
|
#endif
|
|
}
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtGetWriteWatch (NTDLL.@)
|
|
* ZwGetWriteWatch (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtGetWriteWatch( HANDLE process, ULONG flags, PVOID base, SIZE_T size, PVOID *addresses,
|
|
ULONG_PTR *count, ULONG *granularity )
|
|
{
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
sigset_t sigset;
|
|
|
|
size = ROUND_SIZE( base, size );
|
|
base = ROUND_ADDR( base, page_mask );
|
|
|
|
if (!count || !granularity) return STATUS_ACCESS_VIOLATION;
|
|
if (!*count || !size) return STATUS_INVALID_PARAMETER;
|
|
if (flags & ~WRITE_WATCH_FLAG_RESET) return STATUS_INVALID_PARAMETER;
|
|
|
|
if (!addresses) return STATUS_ACCESS_VIOLATION;
|
|
|
|
TRACE( "%p %x %p-%p %p %lu\n", process, flags, base, (char *)base + size,
|
|
addresses, *count );
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
if (is_write_watch_range( base, size ))
|
|
{
|
|
ULONG_PTR pos = 0;
|
|
char *addr = base;
|
|
char *end = addr + size;
|
|
|
|
while (pos < *count && addr < end)
|
|
{
|
|
if (!(get_page_vprot( addr ) & VPROT_WRITEWATCH)) addresses[pos++] = addr;
|
|
addr += page_size;
|
|
}
|
|
if (flags & WRITE_WATCH_FLAG_RESET) reset_write_watches( base, addr - (char *)base );
|
|
*count = pos;
|
|
*granularity = page_size;
|
|
}
|
|
else status = STATUS_INVALID_PARAMETER;
|
|
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtResetWriteWatch (NTDLL.@)
|
|
* ZwResetWriteWatch (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtResetWriteWatch( HANDLE process, PVOID base, SIZE_T size )
|
|
{
|
|
NTSTATUS status = STATUS_SUCCESS;
|
|
sigset_t sigset;
|
|
|
|
size = ROUND_SIZE( base, size );
|
|
base = ROUND_ADDR( base, page_mask );
|
|
|
|
TRACE( "%p %p-%p\n", process, base, (char *)base + size );
|
|
|
|
if (!size) return STATUS_INVALID_PARAMETER;
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
if (is_write_watch_range( base, size ))
|
|
reset_write_watches( base, size );
|
|
else
|
|
status = STATUS_INVALID_PARAMETER;
|
|
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtReadVirtualMemory (NTDLL.@)
|
|
* ZwReadVirtualMemory (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtReadVirtualMemory( HANDLE process, const void *addr, void *buffer,
|
|
SIZE_T size, SIZE_T *bytes_read )
|
|
{
|
|
NTSTATUS status;
|
|
|
|
if (virtual_check_buffer_for_write( buffer, size ))
|
|
{
|
|
SERVER_START_REQ( read_process_memory )
|
|
{
|
|
req->handle = wine_server_obj_handle( process );
|
|
req->addr = wine_server_client_ptr( addr );
|
|
wine_server_set_reply( req, buffer, size );
|
|
if ((status = wine_server_call( req ))) size = 0;
|
|
}
|
|
SERVER_END_REQ;
|
|
}
|
|
else
|
|
{
|
|
status = STATUS_ACCESS_VIOLATION;
|
|
size = 0;
|
|
}
|
|
if (bytes_read) *bytes_read = size;
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtWriteVirtualMemory (NTDLL.@)
|
|
* ZwWriteVirtualMemory (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtWriteVirtualMemory( HANDLE process, void *addr, const void *buffer,
|
|
SIZE_T size, SIZE_T *bytes_written )
|
|
{
|
|
NTSTATUS status;
|
|
|
|
if (virtual_check_buffer_for_read( buffer, size ))
|
|
{
|
|
SERVER_START_REQ( write_process_memory )
|
|
{
|
|
req->handle = wine_server_obj_handle( process );
|
|
req->addr = wine_server_client_ptr( addr );
|
|
wine_server_add_data( req, buffer, size );
|
|
if ((status = wine_server_call( req ))) size = 0;
|
|
}
|
|
SERVER_END_REQ;
|
|
}
|
|
else
|
|
{
|
|
status = STATUS_PARTIAL_COPY;
|
|
size = 0;
|
|
}
|
|
if (bytes_written) *bytes_written = size;
|
|
return status;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* NtAreMappedFilesTheSame (NTDLL.@)
|
|
* ZwAreMappedFilesTheSame (NTDLL.@)
|
|
*/
|
|
NTSTATUS WINAPI NtAreMappedFilesTheSame(PVOID addr1, PVOID addr2)
|
|
{
|
|
struct file_view *view1, *view2;
|
|
NTSTATUS status;
|
|
sigset_t sigset;
|
|
|
|
TRACE("%p %p\n", addr1, addr2);
|
|
|
|
server_enter_uninterrupted_section( &csVirtual, &sigset );
|
|
|
|
view1 = VIRTUAL_FindView( addr1, 0 );
|
|
view2 = VIRTUAL_FindView( addr2, 0 );
|
|
|
|
if (!view1 || !view2)
|
|
status = STATUS_INVALID_ADDRESS;
|
|
else if (is_view_valloc( view1 ) || is_view_valloc( view2 ))
|
|
status = STATUS_CONFLICTING_ADDRESSES;
|
|
else if (view1 == view2)
|
|
status = STATUS_SUCCESS;
|
|
else if ((view1->protect & VPROT_SYSTEM) || (view2->protect & VPROT_SYSTEM))
|
|
status = STATUS_NOT_SAME_DEVICE;
|
|
else
|
|
{
|
|
SERVER_START_REQ( is_same_mapping )
|
|
{
|
|
req->base1 = wine_server_client_ptr( view1->base );
|
|
req->base2 = wine_server_client_ptr( view2->base );
|
|
status = wine_server_call( req );
|
|
}
|
|
SERVER_END_REQ;
|
|
}
|
|
|
|
server_leave_uninterrupted_section( &csVirtual, &sigset );
|
|
return status;
|
|
}
|