mirror of https://github.com/pbatard/rufus.git
462 lines
18 KiB
C
462 lines
18 KiB
C
/*
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* Rufus: The Reliable USB Formatting Utility
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* Drive access function calls
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* Copyright (c) 2011-2012 Pete Batard <pete@akeo.ie>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef _CRTDBG_MAP_ALLOC
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#include <stdlib.h>
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#include <crtdbg.h>
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#endif
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#include <windows.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#include "msapi_utf8.h"
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#include "rufus.h"
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#include "resource.h"
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#include "sys_types.h"
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/*
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* Globals
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*/
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RUFUS_DRIVE_INFO SelectedDrive;
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extern BOOL enable_fixed_disks;
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/*
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* Open a drive or volume with optional write and lock access
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* Returns INVALID_HANDLE_VALUE (/!\ which is DIFFERENT from NULL /!\) on failure.
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* This call is quite risky (left unchecked, inadvertently passing 0 as index would
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* return a handle to C:, which we might then proceed to unknowingly repartition!),
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* so we apply the following mitigation factors:
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* - Valid indexes must belong to a specific range [DRIVE_INDEX_MIN; DRIVE_INDEX_MAX]
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* - When opening for write access, we lock the volume. If that fails, which would
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* typically be the case on C:\ or any other drive in use, we report failure
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* - We report the full path of any drive that was successfully opened for write acces
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*/
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HANDLE GetDriveHandle(DWORD DriveIndex, char* DriveLetter, BOOL bWriteAccess, BOOL bLockDrive)
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{
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BOOL r;
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DWORD size;
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HANDLE hDrive = INVALID_HANDLE_VALUE;
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STORAGE_DEVICE_NUMBER_REDEF device_number = {0};
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UINT drive_type;
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char drives[26*4]; /* "D:\", "E:\", etc. */
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char *drive = drives;
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char logical_drive[] = "\\\\.\\#:";
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char physical_drive[24];
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if ((DriveIndex < DRIVE_INDEX_MIN) || (DriveIndex > DRIVE_INDEX_MAX)) {
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uprintf("WARNING: Bad index value. Please check the code!\n");
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}
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DriveIndex -= DRIVE_INDEX_MIN;
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// If no drive letter is requested, open a physical drive
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if (DriveLetter == NULL) {
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safe_sprintf(physical_drive, sizeof(physical_drive), "\\\\.\\PHYSICALDRIVE%d", DriveIndex);
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hDrive = CreateFileA(physical_drive, GENERIC_READ|(bWriteAccess?GENERIC_WRITE:0),
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FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0);
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if (hDrive == INVALID_HANDLE_VALUE) {
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uprintf("Could not open drive %s: %s\n", physical_drive, WindowsErrorString());
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goto out;
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}
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if (bWriteAccess) {
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uprintf("Caution: Opened %s drive for write access\n", &physical_drive[4]);
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}
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} else {
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*DriveLetter = ' ';
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size = GetLogicalDriveStringsA(sizeof(drives), drives);
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if (size == 0) {
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uprintf("GetLogicalDriveStrings failed: %s\n", WindowsErrorString());
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goto out;
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}
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if (size > sizeof(drives)) {
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uprintf("GetLogicalDriveStrings: buffer too small (required %d vs %d)\n", size, sizeof(drives));
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goto out;
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}
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hDrive = INVALID_HANDLE_VALUE;
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for ( ;*drive; drive += safe_strlen(drive)+1) {
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if (!isalpha(*drive))
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continue;
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*drive = (char)toupper((int)*drive);
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if (*drive < 'C') {
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continue;
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}
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/* IOCTL_STORAGE_GET_DEVICE_NUMBER's STORAGE_DEVICE_NUMBER.DeviceNumber is
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not unique! An HDD, a DVD and probably other drives can have the same
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value there => Use GetDriveType() to filter out unwanted devices.
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See https://github.com/pbatard/rufus/issues/32 for details. */
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drive_type = GetDriveTypeA(drive);
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// NB: the HP utility allows drive_type == DRIVE_FIXED, which we don't allow by default
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// Using Alt-F in Rufus does enable listing, but this mode is unsupported.
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if ((drive_type != DRIVE_REMOVABLE) && ((!enable_fixed_disks) || (drive_type != DRIVE_FIXED)))
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continue;
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safe_sprintf(logical_drive, sizeof(logical_drive), "\\\\.\\%c:", drive[0]);
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hDrive = CreateFileA(logical_drive, GENERIC_READ|(bWriteAccess?GENERIC_WRITE:0),
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FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0);
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if (hDrive == INVALID_HANDLE_VALUE) {
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uprintf("Warning: could not open drive %c: %s\n", drive[0], WindowsErrorString());
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continue;
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}
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r = DeviceIoControl(hDrive, IOCTL_STORAGE_GET_DEVICE_NUMBER, NULL,
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0, &device_number, sizeof(device_number), &size, NULL);
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if ((!r) || (size <= 0)) {
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uprintf("IOCTL_STORAGE_GET_DEVICE_NUMBER failed for device %s: %s\n",
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logical_drive, WindowsErrorString());
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} else if (device_number.DeviceNumber == DriveIndex) {
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break;
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}
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safe_closehandle(hDrive);
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}
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if (hDrive == INVALID_HANDLE_VALUE) {
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goto out;
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}
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if (bWriteAccess) {
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uprintf("Caution: Opened %s drive for write access\n", &logical_drive[4]);
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}
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*DriveLetter = *drive?*drive:' ';
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}
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if ((bLockDrive) && (!DeviceIoControl(hDrive, FSCTL_LOCK_VOLUME, NULL, 0, NULL, 0, &size, NULL))) {
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uprintf("Could not get exclusive access to %s %s\n", logical_drive, WindowsErrorString());
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safe_closehandle(hDrive);
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goto out;
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}
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out:
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return hDrive;
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}
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/*
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* Return the drive letter and volume label
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*/
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BOOL GetDriveLabel(DWORD DriveIndex, char* letter, char** label)
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{
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HANDLE hDrive, hPhysical;
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DWORD size;
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char AutorunPath[] = "#:\\autorun.inf", *AutorunLabel = NULL;
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wchar_t wDrivePath[] = L"#:\\";
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wchar_t wVolumeLabel[MAX_PATH+1];
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static char VolumeLabel[MAX_PATH+1];
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*label = STR_NO_LABEL;
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hDrive = GetDriveHandle(DriveIndex, letter, FALSE, FALSE);
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if (hDrive == INVALID_HANDLE_VALUE)
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return FALSE;
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safe_closehandle(hDrive);
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AutorunPath[0] = *letter;
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wDrivePath[0] = *letter;
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// Try to read an extended label from autorun first. Fallback to regular label if not found.
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// In the case of card readers with no card, users can get an annoying popup asking them
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// to insert media. Use IOCTL_STORAGE_CHECK_VERIFY to prevent this
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hPhysical = GetDriveHandle(DriveIndex, NULL, FALSE, FALSE);
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if (DeviceIoControl(hPhysical, IOCTL_STORAGE_CHECK_VERIFY, NULL, 0, NULL, 0, &size, NULL))
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AutorunLabel = get_token_data_file("label", AutorunPath);
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else if (GetLastError() == ERROR_NOT_READY)
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uprintf("Ignoring autorun.inf label for drive %c: %s\n", *letter,
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(HRESULT_CODE(GetLastError()) == ERROR_NOT_READY)?"No media":WindowsErrorString());
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safe_closehandle(hPhysical);
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if (AutorunLabel != NULL) {
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uprintf("Using autorun.inf label for drive %c: '%s'\n", *letter, AutorunLabel);
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strncpy(VolumeLabel, AutorunLabel, sizeof(VolumeLabel));
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safe_free(AutorunLabel);
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*label = VolumeLabel;
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} else if (GetVolumeInformationW(wDrivePath, wVolumeLabel, ARRAYSIZE(wVolumeLabel),
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NULL, NULL, NULL, NULL, 0) && *wVolumeLabel) {
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wchar_to_utf8_no_alloc(wVolumeLabel, VolumeLabel, sizeof(VolumeLabel));
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*label = VolumeLabel;
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}
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return TRUE;
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}
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/*
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* Fill the drive properties (size, FS, etc)
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*/
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BOOL GetDrivePartitionData(DWORD DeviceNumber, char* FileSystemName, DWORD FileSystemNameSize)
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{
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BOOL r;
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HANDLE hDrive;
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DWORD size;
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BYTE geometry[128], layout[1024], part_type;
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void* disk_geometry = (void*)geometry;
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void* drive_layout = (void*)layout;
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PDISK_GEOMETRY_EX DiskGeometry = (PDISK_GEOMETRY_EX)disk_geometry;
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PDRIVE_LAYOUT_INFORMATION_EX DriveLayout = (PDRIVE_LAYOUT_INFORMATION_EX)drive_layout;
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char DrivePath[] = "#:\\", tmp[256];
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DWORD i, nb_partitions = 0;
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hDrive = GetDriveHandle(DeviceNumber, DrivePath, FALSE, FALSE);
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if (hDrive == INVALID_HANDLE_VALUE)
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return FALSE;
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r = DeviceIoControl(hDrive, IOCTL_DISK_GET_DRIVE_GEOMETRY_EX,
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NULL, 0, geometry, sizeof(geometry), &size, NULL);
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if (!r || size <= 0) {
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uprintf("IOCTL_DISK_GET_DRIVE_GEOMETRY_EX failed for drive %c: %s\n", DrivePath[0], WindowsErrorString());
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safe_closehandle(hDrive);
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return FALSE;
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}
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SelectedDrive.DiskSize = DiskGeometry->DiskSize.QuadPart;
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memcpy(&SelectedDrive.Geometry, &DiskGeometry->Geometry, sizeof(DISK_GEOMETRY));
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uprintf("Sector Size: %d bytes\n", DiskGeometry->Geometry.BytesPerSector);
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uprintf("Cylinders: %lld, TracksPerCylinder: %d, SectorsPerTrack: %d\n",
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DiskGeometry->Geometry.Cylinders, DiskGeometry->Geometry.TracksPerCylinder, DiskGeometry->Geometry.SectorsPerTrack);
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r = DeviceIoControl(hDrive, IOCTL_DISK_GET_DRIVE_LAYOUT_EX,
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NULL, 0, layout, sizeof(layout), &size, NULL );
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if (!r || size <= 0) {
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uprintf("IOCTL_DISK_GET_DRIVE_LAYOUT_EX failed for drive %c: %s\n", DrivePath[0], WindowsErrorString());
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return FALSE;
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}
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switch (DriveLayout->PartitionStyle) {
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case PARTITION_STYLE_MBR:
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SelectedDrive.PartitionType = PARTITION_STYLE_MBR;
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for (i=0; i<DriveLayout->PartitionCount; i++) {
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if (DriveLayout->PartitionEntry[i].Mbr.PartitionType != PARTITION_ENTRY_UNUSED) {
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nb_partitions++;
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}
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}
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uprintf("Partition type: MBR, NB Partitions: %d\n", nb_partitions);
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uprintf("Disk ID: 0x%08X\n", DriveLayout->Mbr.Signature);
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for (i=0; i<DriveLayout->PartitionCount; i++) {
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if (DriveLayout->PartitionEntry[i].Mbr.PartitionType != PARTITION_ENTRY_UNUSED) {
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uprintf("Partition %d:\n", DriveLayout->PartitionEntry[i].PartitionNumber);
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part_type = DriveLayout->PartitionEntry[i].Mbr.PartitionType;
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uprintf(" Type: %s (0x%02x)\r\n Size: %s (%lld bytes)\r\n Start Sector: %d, Boot: %s, Recognized: %s\n",
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GetPartitionType(part_type), part_type, SizeToHumanReadable(DriveLayout->PartitionEntry[i].PartitionLength),
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DriveLayout->PartitionEntry[i].PartitionLength, DriveLayout->PartitionEntry[i].Mbr.HiddenSectors,
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DriveLayout->PartitionEntry[i].Mbr.BootIndicator?"Yes":"No",
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DriveLayout->PartitionEntry[i].Mbr.RecognizedPartition?"Yes":"No");
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if (part_type == 0xee) // Flag a protective MBR for non GPT platforms (XP)
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SelectedDrive.has_protective_mbr = TRUE;
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}
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}
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break;
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case PARTITION_STYLE_GPT:
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SelectedDrive.PartitionType = PARTITION_STYLE_GPT;
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uprintf("Partition type: GPT, NB Partitions: %d\n", DriveLayout->PartitionCount);
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uprintf("Disk GUID: %s\n", GuidToString(&DriveLayout->Gpt.DiskId));
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uprintf("Max parts: %d, Start Offset: %lld, Usable = %lld bytes\n",
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DriveLayout->Gpt.MaxPartitionCount, DriveLayout->Gpt.StartingUsableOffset.QuadPart, DriveLayout->Gpt.UsableLength.QuadPart);
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for (i=0; i<DriveLayout->PartitionCount; i++) {
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nb_partitions++;
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tmp[0] = 0;
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wchar_to_utf8_no_alloc(DriveLayout->PartitionEntry[i].Gpt.Name, tmp, sizeof(tmp));
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uprintf("Partition %d:\r\n Type: %s\r\n Name: '%s'\n", DriveLayout->PartitionEntry[i].PartitionNumber,
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GuidToString(&DriveLayout->PartitionEntry[i].Gpt.PartitionType), tmp);
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uprintf(" ID: %s\r\n Size: %s (%lld bytes)\r\n Start Sector: %lld, Attributes: 0x%016llX\n",
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GuidToString(&DriveLayout->PartitionEntry[i].Gpt.PartitionId), SizeToHumanReadable(DriveLayout->PartitionEntry[i].PartitionLength),
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DriveLayout->PartitionEntry[i].PartitionLength, DriveLayout->PartitionEntry[i].StartingOffset.QuadPart / DiskGeometry->Geometry.BytesPerSector,
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DriveLayout->PartitionEntry[i].Gpt.Attributes);
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}
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break;
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default:
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SelectedDrive.PartitionType = PARTITION_STYLE_MBR;
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uprintf("Partition type: RAW\n");
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break;
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}
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safe_closehandle(hDrive);
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// Populate the filesystem data
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if (!GetVolumeInformationA(DrivePath, NULL, 0, NULL, NULL, NULL, FileSystemName, FileSystemNameSize)) {
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FileSystemName[0] = 0;
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}
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return TRUE;
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}
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BOOL UnmountDrive(HANDLE hDrive)
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{
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DWORD size;
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if (!DeviceIoControl(hDrive, FSCTL_DISMOUNT_VOLUME, NULL, 0, NULL, 0, &size, NULL)) {
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uprintf("Could not ummount drive: %s\n", WindowsErrorString());
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return FALSE;
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}
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return TRUE;
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}
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/* MinGW is unhappy about accessing partitions beside the first unless we redef */
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typedef struct _DRIVE_LAYOUT_INFORMATION_EX4 {
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DWORD PartitionStyle;
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DWORD PartitionCount;
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union {
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DRIVE_LAYOUT_INFORMATION_MBR Mbr;
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DRIVE_LAYOUT_INFORMATION_GPT Gpt;
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} Type;
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PARTITION_INFORMATION_EX PartitionEntry[4];
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} DRIVE_LAYOUT_INFORMATION_EX4,*PDRIVE_LAYOUT_INFORMATION_EX4;
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/*
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* Create a partition table
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*/
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// See http://technet.microsoft.com/en-us/library/cc739412.aspx for some background info
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#if !defined(PARTITION_BASIC_DATA_GUID)
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const GUID PARTITION_BASIC_DATA_GUID = { 0xebd0a0a2, 0xb9e5, 0x4433, {0x87, 0xc0, 0x68, 0xb6, 0xb7, 0x26, 0x99, 0xc7} };
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#endif
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BOOL CreatePartition(HANDLE hDrive, int partition_style, int file_system)
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{
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const char* PartitionTypeName[2] = { "MBR", "GPT" };
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CREATE_DISK CreateDisk = {PARTITION_STYLE_RAW, {{0}}};
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DRIVE_LAYOUT_INFORMATION_EX4 DriveLayoutEx = {0};
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BOOL r;
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DWORD size;
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LONGLONG size_in_sectors;
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PrintStatus(0, TRUE, "Partitioning (%s)...", PartitionTypeName[partition_style]);
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if ((partition_style == PARTITION_STYLE_GPT) || (!IsChecked(IDC_EXTRA_PARTITION))) {
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// Go with the MS 1 MB wastage at the beginning...
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DriveLayoutEx.PartitionEntry[0].StartingOffset.QuadPart = 1024*1024;
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} else {
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// Align on Cylinder
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DriveLayoutEx.PartitionEntry[0].StartingOffset.QuadPart =
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SelectedDrive.Geometry.BytesPerSector * SelectedDrive.Geometry.SectorsPerTrack;
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}
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size_in_sectors = (SelectedDrive.DiskSize - DriveLayoutEx.PartitionEntry[0].StartingOffset.QuadPart) / SelectedDrive.Geometry.BytesPerSector;
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switch (partition_style) {
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case PARTITION_STYLE_MBR:
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CreateDisk.PartitionStyle = PARTITION_STYLE_MBR;
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CreateDisk.Mbr.Signature = GetTickCount();
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DriveLayoutEx.PartitionStyle = PARTITION_STYLE_MBR;
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DriveLayoutEx.PartitionCount = 4; // Must be multiple of 4 for MBR
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DriveLayoutEx.Type.Mbr.Signature = CreateDisk.Mbr.Signature;
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DriveLayoutEx.PartitionEntry[0].PartitionStyle = PARTITION_STYLE_MBR;
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// TODO: CHS fixup (32 sectors/track) through a cheat mode, if requested
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// NB: disk geometry is computed by BIOS & co. by finding a match between LBA and CHS value of first partition
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// ms-sys's write_partition_number_of_heads() and write_partition_start_sector_number() can be used if needed
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// Align on sector boundary if the extra part option is checked
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if (IsChecked(IDC_EXTRA_PARTITION)) {
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size_in_sectors = ((size_in_sectors / SelectedDrive.Geometry.SectorsPerTrack)-1) * SelectedDrive.Geometry.SectorsPerTrack;
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if (size_in_sectors <= 0)
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return FALSE;
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}
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break;
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case PARTITION_STYLE_GPT:
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CreateDisk.PartitionStyle = PARTITION_STYLE_GPT;
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IGNORE_RETVAL(CoCreateGuid(&CreateDisk.Gpt.DiskId));
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CreateDisk.Gpt.MaxPartitionCount = MAX_GPT_PARTITIONS;
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DriveLayoutEx.PartitionStyle = PARTITION_STYLE_GPT;
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DriveLayoutEx.PartitionCount = 1;
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// At the very least, a GPT disk has atv least 34 reserved (512 bytes) blocks at the beginning
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// and 33 at the end.
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DriveLayoutEx.Type.Gpt.StartingUsableOffset.QuadPart = 34*512;
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DriveLayoutEx.Type.Gpt.UsableLength.QuadPart = SelectedDrive.DiskSize - (34+33)*512;
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DriveLayoutEx.Type.Gpt.MaxPartitionCount = MAX_GPT_PARTITIONS;
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DriveLayoutEx.Type.Gpt.DiskId = CreateDisk.Gpt.DiskId;
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DriveLayoutEx.PartitionEntry[0].PartitionStyle = PARTITION_STYLE_GPT;
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size_in_sectors -= 33; // Need 33 sectors at the end for secondary GPT
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break;
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default:
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break;
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}
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DriveLayoutEx.PartitionEntry[0].PartitionLength.QuadPart = size_in_sectors * SelectedDrive.Geometry.BytesPerSector;
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DriveLayoutEx.PartitionEntry[0].PartitionNumber = 1;
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DriveLayoutEx.PartitionEntry[0].RewritePartition = TRUE;
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switch (partition_style) {
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case PARTITION_STYLE_MBR:
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DriveLayoutEx.PartitionEntry[0].Mbr.HiddenSectors = SelectedDrive.Geometry.SectorsPerTrack;
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switch (file_system) {
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case FS_FAT16:
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DriveLayoutEx.PartitionEntry[0].Mbr.PartitionType = 0x0e; // FAT16 LBA
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break;
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case FS_NTFS:
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case FS_EXFAT:
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DriveLayoutEx.PartitionEntry[0].Mbr.PartitionType = 0x07; // NTFS
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break;
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case FS_FAT32:
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DriveLayoutEx.PartitionEntry[0].Mbr.PartitionType = 0x0c; // FAT32 LBA
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break;
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default:
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uprintf("Unsupported file system\n");
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return FALSE;
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}
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// Create an extra partition on request - can improve BIOS detection as HDD for older BIOSes
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if (IsChecked(IDC_EXTRA_PARTITION)) {
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DriveLayoutEx.PartitionEntry[1].PartitionStyle = PARTITION_STYLE_MBR;
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// Should end on a sector boundary
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DriveLayoutEx.PartitionEntry[1].StartingOffset.QuadPart = DriveLayoutEx.PartitionEntry[0].StartingOffset.QuadPart +
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DriveLayoutEx.PartitionEntry[0].PartitionLength.QuadPart;
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DriveLayoutEx.PartitionEntry[1].PartitionLength.QuadPart = SelectedDrive.Geometry.SectorsPerTrack*SelectedDrive.Geometry.BytesPerSector;
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|
DriveLayoutEx.PartitionEntry[1].PartitionNumber = 2;
|
|
DriveLayoutEx.PartitionEntry[1].RewritePartition = TRUE;
|
|
DriveLayoutEx.PartitionEntry[1].Mbr.HiddenSectors = SelectedDrive.Geometry.SectorsPerTrack*SelectedDrive.Geometry.BytesPerSector;
|
|
DriveLayoutEx.PartitionEntry[1].Mbr.PartitionType = DriveLayoutEx.PartitionEntry[0].Mbr.PartitionType + 0x10; // Hidden whatever
|
|
}
|
|
// For the remaining partitions, PartitionStyle & PartitionType have already
|
|
// been zeroed => already set to MBR/unused
|
|
break;
|
|
case PARTITION_STYLE_GPT:
|
|
DriveLayoutEx.PartitionEntry[0].Gpt.PartitionType = PARTITION_BASIC_DATA_GUID;
|
|
wcscpy(DriveLayoutEx.PartitionEntry[0].Gpt.Name, L"Microsoft Basic Data");
|
|
IGNORE_RETVAL(CoCreateGuid(&DriveLayoutEx.PartitionEntry[0].Gpt.PartitionId));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// If you don't call IOCTL_DISK_CREATE_DISK, the next call will fail
|
|
size = sizeof(CreateDisk);
|
|
r = DeviceIoControl(hDrive, IOCTL_DISK_CREATE_DISK,
|
|
(BYTE*)&CreateDisk, size, NULL, 0, &size, NULL );
|
|
if (!r) {
|
|
uprintf("IOCTL_DISK_CREATE_DISK failed: %s\n", WindowsErrorString());
|
|
safe_closehandle(hDrive);
|
|
return FALSE;
|
|
}
|
|
|
|
size = sizeof(DriveLayoutEx) - ((partition_style == PARTITION_STYLE_GPT)?(3*sizeof(PARTITION_INFORMATION_EX)):0);
|
|
r = DeviceIoControl(hDrive, IOCTL_DISK_SET_DRIVE_LAYOUT_EX,
|
|
(BYTE*)&DriveLayoutEx, size, NULL, 0, &size, NULL );
|
|
if (!r) {
|
|
uprintf("IOCTL_DISK_SET_DRIVE_LAYOUT_EX failed: %s\n", WindowsErrorString());
|
|
safe_closehandle(hDrive);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Convert a partition type to its human readable form using
|
|
* (slightly modified) entries from GNU fdisk
|
|
*/
|
|
const char* GetPartitionType(BYTE Type)
|
|
{
|
|
int i;
|
|
for (i=0; i<ARRAYSIZE(msdos_systypes); i++) {
|
|
if (msdos_systypes[i].type == Type)
|
|
return msdos_systypes[i].name;
|
|
}
|
|
return "Unknown";
|
|
}
|