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[core] fix handling of BFD drives

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* A BFD (Big Floppy Disk) is a disk that isn't actually partitioned,
  but where the first data sector starts at sector 0
* Closes #814
This commit is contained in:
Pete Batard 2016-08-21 14:06:15 +02:00
parent 2b0cc9349f
commit d9a928f5bc
3 changed files with 25 additions and 15 deletions
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20
src/drive.c
View file

@ -664,7 +664,7 @@ BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSys
PDRIVE_LAYOUT_INFORMATION_EX DriveLayout = (PDRIVE_LAYOUT_INFORMATION_EX)(void*)layout;
char* volume_name;
char tmp[256];
DWORD i, j;
DWORD i, j, big_floppy = FALSE;
if (FileSystemName == NULL)
return FALSE;
@ -725,16 +725,23 @@ BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSys
SelectedDrive.nPartitions++;
}
}
// Detect drives that are using the whole disk as a single partition
if ((DriveLayout->PartitionEntry[0].Mbr.PartitionType != PARTITION_ENTRY_UNUSED) &&
(DriveLayout->PartitionEntry[0].StartingOffset.QuadPart == 0LL)) {
suprintf("Partition type: BFD (Big Floppy Disk)");
big_floppy = TRUE;
} else {
suprintf("Partition type: MBR, NB Partitions: %d\n", SelectedDrive.nPartitions);
SelectedDrive.has_mbr_uefi_marker = (DriveLayout->Mbr.Signature == MBR_UEFI_MARKER);
suprintf("Disk ID: 0x%08X %s\n", DriveLayout->Mbr.Signature, SelectedDrive.has_mbr_uefi_marker?"(UEFI target)":"");
suprintf("Disk ID: 0x%08X %s\n", DriveLayout->Mbr.Signature, SelectedDrive.has_mbr_uefi_marker ? "(UEFI target)" : "");
AnalyzeMBR(hPhysical, "Drive");
}
for (i=0; i<DriveLayout->PartitionCount; i++) {
if (DriveLayout->PartitionEntry[i].Mbr.PartitionType != PARTITION_ENTRY_UNUSED) {
part_type = DriveLayout->PartitionEntry[i].Mbr.PartitionType;
isUefiNtfs = (i == 1) && (part_type == 0xef) &&
(DriveLayout->PartitionEntry[i].PartitionLength.QuadPart <= 1*MB);
suprintf("Partition %d%s:\n", i+1, isUefiNtfs?" (UEFI:NTFS)":"");
suprintf("Partition %d%s:\n", i+(big_floppy?0:1), isUefiNtfs?" (UEFI:NTFS)":"");
for (j=0; j<ARRAYSIZE(mbr_mountable); j++) {
if (part_type == mbr_mountable[j]) {
ret = TRUE;
@ -742,13 +749,12 @@ BOOL GetDrivePartitionData(DWORD DriveIndex, char* FileSystemName, DWORD FileSys
}
}
// NB: MinGW's gcc 4.9.2 broke "%lld" printout on XP so we use the inttypes.h "PRI##" qualifiers
suprintf(" Type: %s (0x%02x)\r\n Size: %s (%" PRIi64 " bytes)\r\n Start Sector: %" PRIi64 ", Boot: %s, Recognized: %s\n",
((part_type==0x07)&&(FileSystemName[0]!=0))?FileSystemName:GetPartitionType(part_type), part_type,
suprintf(" Type: %s (0x%02x)\r\n Size: %s (%" PRIi64 " bytes)\r\n Start Sector: %" PRIi64 ", Boot: %s",
((part_type==0x07||big_floppy)&&(FileSystemName[0]!=0))?FileSystemName:GetPartitionType(part_type), big_floppy?0:part_type,
SizeToHumanReadable(DriveLayout->PartitionEntry[i].PartitionLength.QuadPart, TRUE, FALSE),
DriveLayout->PartitionEntry[i].PartitionLength.QuadPart,
DriveLayout->PartitionEntry[i].StartingOffset.QuadPart / SelectedDrive.SectorSize,
DriveLayout->PartitionEntry[i].Mbr.BootIndicator?"Yes":"No",
DriveLayout->PartitionEntry[i].Mbr.RecognizedPartition?"Yes":"No");
DriveLayout->PartitionEntry[i].Mbr.BootIndicator?"Yes":"No");
SelectedDrive.FirstDataSector = min(SelectedDrive.FirstDataSector,
(DWORD)(DriveLayout->PartitionEntry[i].StartingOffset.QuadPart / SelectedDrive.SectorSize));
if ((part_type == RUFUS_EXTRA_PARTITION_TYPE) || (isUefiNtfs))

4
src/format.c
View file

@ -826,6 +826,10 @@ static BOOL ClearMBRGPT(HANDLE hPhysicalDrive, LONGLONG DiskSize, DWORD SectorSi
// with GPT drives that contain a lot of small partitions) we try not not to clear
// sectors further than the lowest partition already residing on the disk.
num_sectors_to_clear = min(SelectedDrive.FirstDataSector, (DWORD)((add1MB ? 2048 : 0) + MAX_SECTORS_TO_CLEAR));
// Special case for big floppy disks (FirstDataSector = 0)
if (num_sectors_to_clear < 4)
num_sectors_to_clear = (DWORD)((add1MB ? 2048 : 0) + MAX_SECTORS_TO_CLEAR);
uprintf("Erasing %d sectors", num_sectors_to_clear);
for (i=0; i<num_sectors_to_clear; i++) {
if ((IS_ERROR(FormatStatus)) || (write_sectors(hPhysicalDrive, SectorSize, i, 1, pBuf) != SectorSize)) {

10
src/rufus.rc
View file

@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
IDD_DIALOG DIALOGEX 12, 12, 242, 376
STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
EXSTYLE WS_EX_ACCEPTFILES
CAPTION "Rufus 2.11.987"
CAPTION "Rufus 2.11.988"
FONT 8, "Segoe UI Symbol", 400, 0, 0x0
BEGIN
LTEXT "Device",IDS_DEVICE_TXT,9,6,200,8
@ -320,8 +320,8 @@ END
//
VS_VERSION_INFO VERSIONINFO
FILEVERSION 2,11,987,0
PRODUCTVERSION 2,11,987,0
FILEVERSION 2,11,988,0
PRODUCTVERSION 2,11,988,0
FILEFLAGSMASK 0x3fL
#ifdef _DEBUG
FILEFLAGS 0x1L
@ -338,13 +338,13 @@ BEGIN
BEGIN
VALUE "CompanyName", "Akeo Consulting (http://akeo.ie)"
VALUE "FileDescription", "Rufus"
VALUE "FileVersion", "2.11.987"
VALUE "FileVersion", "2.11.988"
VALUE "InternalName", "Rufus"
VALUE "LegalCopyright", "© 2011-2016 Pete Batard (GPL v3)"
VALUE "LegalTrademarks", "http://www.gnu.org/copyleft/gpl.html"
VALUE "OriginalFilename", "rufus.exe"
VALUE "ProductName", "Rufus"
VALUE "ProductVersion", "2.11.987"
VALUE "ProductVersion", "2.11.988"
END
END
BLOCK "VarFileInfo"