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https://github.com/pbatard/rufus.git
synced 2024-08-14 23:57:05 +00:00
[core] work around Windows' moronic behaviour for mounted VHDs
* If you attempt to read past the end of a mounted VHD, not only will Windows happily return data that doesn't exist (instead of returning End of Disk), but it will also corrupt the existing data! * So, to appease the capricious Windows gods, we now make sure that we never attempt to read (or write) past the boundaries of the source or target when writing images. * This should address the last issue from #2468. * Also set version to rufus-next and make some small improvement in winio.h.
This commit is contained in:
Pete Batard
parent
ae3c65e7f8
commit
bdff2dc45c
5 changed files with 39 additions and 33 deletions
20
configure
vendored
20
configure
vendored
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@ -1,6 +1,6 @@
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#! /bin/sh
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# Guess values for system-dependent variables and create Makefiles.
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# Generated by GNU Autoconf 2.71 for rufus 4.5.
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# Generated by GNU Autoconf 2.71 for rufus 4.6.
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#
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# Report bugs to <https://github.com/pbatard/rufus/issues>.
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#
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@ -611,8 +611,8 @@ MAKEFLAGS=
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# Identity of this package.
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PACKAGE_NAME='rufus'
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PACKAGE_TARNAME='rufus'
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PACKAGE_VERSION='4.5'
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PACKAGE_STRING='rufus 4.5'
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PACKAGE_VERSION='4.6'
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PACKAGE_STRING='rufus 4.6'
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PACKAGE_BUGREPORT='https://github.com/pbatard/rufus/issues'
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PACKAGE_URL='https://rufus.ie'
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@ -1269,7 +1269,7 @@ if test "$ac_init_help" = "long"; then
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# Omit some internal or obsolete options to make the list less imposing.
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# This message is too long to be a string in the A/UX 3.1 sh.
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cat <<_ACEOF
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\`configure' configures rufus 4.5 to adapt to many kinds of systems.
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\`configure' configures rufus 4.6 to adapt to many kinds of systems.
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Usage: $0 [OPTION]... [VAR=VALUE]...
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@ -1336,7 +1336,7 @@ fi
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if test -n "$ac_init_help"; then
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case $ac_init_help in
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short | recursive ) echo "Configuration of rufus 4.5:";;
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short | recursive ) echo "Configuration of rufus 4.6:";;
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esac
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cat <<\_ACEOF
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@ -1428,7 +1428,7 @@ fi
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test -n "$ac_init_help" && exit $ac_status
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if $ac_init_version; then
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cat <<\_ACEOF
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rufus configure 4.5
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rufus configure 4.6
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generated by GNU Autoconf 2.71
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Copyright (C) 2021 Free Software Foundation, Inc.
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@ -1504,7 +1504,7 @@ cat >config.log <<_ACEOF
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This file contains any messages produced by compilers while
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running configure, to aid debugging if configure makes a mistake.
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It was created by rufus $as_me 4.5, which was
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It was created by rufus $as_me 4.6, which was
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generated by GNU Autoconf 2.71. Invocation command line was
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$ $0$ac_configure_args_raw
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@ -2767,7 +2767,7 @@ fi
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# Define the identity of the package.
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PACKAGE='rufus'
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VERSION='4.5'
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VERSION='4.6'
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printf "%s\n" "#define PACKAGE \"$PACKAGE\"" >>confdefs.h
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@ -5309,7 +5309,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
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# report actual input values of CONFIG_FILES etc. instead of their
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# values after options handling.
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ac_log="
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This file was extended by rufus $as_me 4.5, which was
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This file was extended by rufus $as_me 4.6, which was
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generated by GNU Autoconf 2.71. Invocation command line was
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CONFIG_FILES = $CONFIG_FILES
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@ -5365,7 +5365,7 @@ ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\
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cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
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ac_cs_config='$ac_cs_config_escaped'
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ac_cs_version="\\
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rufus config.status 4.5
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rufus config.status 4.6
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configured by $0, generated by GNU Autoconf 2.71,
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with options \\"\$ac_cs_config\\"
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@ -1,4 +1,4 @@
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AC_INIT([rufus], [4.5], [https://github.com/pbatard/rufus/issues], [rufus], [https://rufus.ie])
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AC_INIT([rufus], [4.6], [https://github.com/pbatard/rufus/issues], [rufus], [https://rufus.ie])
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AM_INIT_AUTOMAKE([-Wno-portability foreign no-dist no-dependencies])
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AC_CONFIG_SRCDIR([src/rufus.c])
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AC_CONFIG_MACRO_DIR([m4])
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28
src/format.c
28
src/format.c
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@ -1150,8 +1150,8 @@ static BOOL WriteDrive(HANDLE hPhysicalDrive, BOOL bZeroDrive)
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BOOL s, ret = FALSE;
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LARGE_INTEGER li;
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HANDLE hSourceImage = INVALID_HANDLE_VALUE;
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DWORD i, read_size[NUM_BUFFERS], write_size, comp_size, buf_size;
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uint64_t wb, target_size = bZeroDrive ? SelectedDrive.DiskSize : img_report.image_size;
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DWORD i, read_size[NUM_BUFFERS] = { 0 }, write_size, comp_size, buf_size;
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uint64_t wb, target_size = bZeroDrive ? SelectedDrive.DiskSize : MIN((uint64_t)SelectedDrive.DiskSize, img_report.image_size);
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uint64_t cur_value, last_value = 0;
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int64_t bled_ret;
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uint8_t* buffer = NULL;
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@ -1341,7 +1341,7 @@ static BOOL WriteDrive(HANDLE hPhysicalDrive, BOOL bZeroDrive)
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assert((uintptr_t)buffer % SelectedDrive.SectorSize == 0);
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// Start the initial read
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ReadFileAsync(hSourceImage, &buffer[read_bufnum * buf_size], buf_size);
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ReadFileAsync(hSourceImage, &buffer[read_bufnum * buf_size], (DWORD)MIN(buf_size, target_size));
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read_size[proc_bufnum] = 1; // To avoid early loop exit
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for (wb = 0; read_size[proc_bufnum] != 0; wb += read_size[proc_bufnum]) {
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@ -1362,21 +1362,25 @@ static BOOL WriteDrive(HANDLE hPhysicalDrive, BOOL bZeroDrive)
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goto out;
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}
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// 2. Update the read size
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// 2a) Don't overflow our projected size (mostly for VHDs)
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if (wb + read_size[read_bufnum] > target_size)
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read_size[read_bufnum] = (DWORD)(target_size - wb);
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// 2b) WriteFile fails unless the size is a multiple of sector size
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if (read_size[read_bufnum] % SelectedDrive.SectorSize != 0)
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read_size[read_bufnum] = ((read_size[read_bufnum] + SelectedDrive.SectorSize - 1) /
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SelectedDrive.SectorSize) * SelectedDrive.SectorSize;
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// 2. WriteFile fails unless the size is a multiple of sector size
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if (read_size[read_bufnum] % SelectedDrive.SectorSize != 0) {
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assert(HI_ALIGN_X_TO_Y(read_size[read_bufnum], SelectedDrive.SectorSize) <= buf_size);
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read_size[read_bufnum] = HI_ALIGN_X_TO_Y(read_size[read_bufnum], SelectedDrive.SectorSize);
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}
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// 3. Switch to the next reading buffer
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proc_bufnum = read_bufnum;
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read_bufnum = (read_bufnum + 1) % NUM_BUFFERS;
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// 3. Launch the next asynchronous read operation
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ReadFileAsync(hSourceImage, &buffer[read_bufnum * buf_size], buf_size);
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// It is VERY IMPORTANT here that we don't attempt to read past the source
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// or target sizes, as mounted VHDs will SCREW YOU if you attempt to do so
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// and will even start returning ERRONEOUS DATA for sectors before the end
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// of the disk... So we make sure to adjust the size not to ever overflow.
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// Also we need to make sure we add read_size[proc_bufnum] to wb since we
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// have already read the data and are about to write it.
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ReadFileAsync(hSourceImage, &buffer[read_bufnum * buf_size], (DWORD)MIN(buf_size, target_size - (wb + read_size[proc_bufnum])));
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// 4. Synchronously write the current data buffer
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for (i = 1; i <= WRITE_RETRIES; i++) {
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12
src/rufus.rc
12
src/rufus.rc
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@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
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IDD_DIALOG DIALOGEX 12, 12, 232, 326
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STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
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EXSTYLE WS_EX_ACCEPTFILES
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CAPTION "Rufus 4.5.2181"
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CAPTION "Rufus 4.6.2182"
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FONT 9, "Segoe UI Symbol", 400, 0, 0x0
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BEGIN
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LTEXT "Drive Properties",IDS_DRIVE_PROPERTIES_TXT,8,6,53,12,NOT WS_GROUP
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@ -397,8 +397,8 @@ END
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//
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VS_VERSION_INFO VERSIONINFO
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FILEVERSION 4,5,2181,0
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PRODUCTVERSION 4,5,2181,0
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FILEVERSION 4,6,2182,0
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PRODUCTVERSION 4,6,2182,0
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FILEFLAGSMASK 0x3fL
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#ifdef _DEBUG
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FILEFLAGS 0x1L
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@ -416,13 +416,13 @@ BEGIN
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VALUE "Comments", "https://rufus.ie"
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VALUE "CompanyName", "Akeo Consulting"
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VALUE "FileDescription", "Rufus"
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VALUE "FileVersion", "4.5.2181"
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VALUE "FileVersion", "4.6.2182"
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VALUE "InternalName", "Rufus"
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VALUE "LegalCopyright", "<22> 2011-2024 Pete Batard (GPL v3)"
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VALUE "LegalTrademarks", "https://www.gnu.org/licenses/gpl-3.0.html"
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VALUE "OriginalFilename", "rufus-4.5.exe"
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VALUE "OriginalFilename", "rufus-4.6.exe"
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VALUE "ProductName", "Rufus"
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VALUE "ProductVersion", "4.5.2181"
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VALUE "ProductVersion", "4.6.2182"
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END
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END
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BLOCK "VarFileInfo"
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10
src/winio.h
10
src/winio.h
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@ -102,11 +102,13 @@ static __inline BOOL ReadFileAsync(HANDLE h, LPVOID lpBuffer, DWORD nNumberOfByt
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ASYNC_FD* fd = (ASYNC_FD*)h;
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fd->Overlapped.bOffsetUpdated = FALSE;
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if (!ReadFile(fd->hFile, lpBuffer, nNumberOfBytesToRead, NULL,
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(OVERLAPPED*)&fd->Overlapped))
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// TODO: Is it possible to get ERROR_HANDLE_EOF here?
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(OVERLAPPED*)&fd->Overlapped)) {
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// Is it possible to get ERROR_HANDLE_EOF here?
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assert(GetLastError() != ERROR_HANDLE_EOF);
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fd->iStatus = (GetLastError() == ERROR_IO_PENDING) ? -1 : 0;
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else
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} else {
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fd->iStatus = 1;
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}
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return (fd->iStatus != 0);
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}
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@ -165,11 +167,11 @@ static __inline BOOL GetSizeAsync(HANDLE h, LPDWORD lpNumberOfBytes)
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SetLastError(ERROR_NO_MORE_ITEMS);
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return FALSE;
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}
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fd->Overlapped.bOffsetUpdated = TRUE;
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if (!GetOverlappedResultEx(fd->hFile, (OVERLAPPED*)&fd->Overlapped,
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lpNumberOfBytes, WRITE_TIMEOUT, (fd->iStatus < 0)))
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// When reading from VHD/VHDX we get SECTOR_NOT_FOUND rather than EOF for the end of the drive
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return (GetLastError() == ERROR_HANDLE_EOF || GetLastError() == ERROR_SECTOR_NOT_FOUND);
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fd->Overlapped.Offset += *lpNumberOfBytes;
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fd->Overlapped.bOffsetUpdated = TRUE;
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return TRUE;
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}
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