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[ext2fs] fix creation of persistent partitions for pre-1703 platforms

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* Windows platforms prior to Windows 10 1703 cannot access any logical partition besides the
  first one (we don't even get a volume for those).
* This fix enables the use of physical + offset for ext# formatting to work around this,
  which is file since we don't actually need to mount the partition.
* Also fix ext2fs_open2() not handling normalized versions of Windows drive paths ("\\?\...")
* Also fix an issue where we would make the drive letter unavailable after formatting a
  standalone partition to ext#.
* Also ensure that we return an error if the drive we attempt to locate a partition on
  through an offset does not match the currently selected one.
* Also remove some unused calls in drive.c.
* Closes #1374
This commit is contained in:
Pete Batard 2019-09-14 23:33:46 +01:00
parent 0a24940c85
commit bf8d888b21
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GPG key ID: 38E0CF5E69EDD671
7 changed files with 89 additions and 83 deletions
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3
src/drive.h
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@ -351,6 +351,7 @@ typedef struct {
int PartitionStyle;
int nPartitions; // number of partitions we actually care about
uint64_t PartitionOffset[MAX_PARTITIONS];
uint64_t PartitionSize[MAX_PARTITIONS];
int FSType;
char proposed_label[16];
BOOL has_protective_mbr;
@ -366,14 +367,12 @@ extern uint64_t partition_offset[3];
BOOL SetAutoMount(BOOL enable);
BOOL GetAutoMount(BOOL* enabled);
char* GetPhysicalName(DWORD DriveIndex);
char* GetPartitionName(DWORD DriveIndex, uint64_t PartitionOffset);
BOOL DeletePartitions(DWORD DriveIndex);
HANDLE GetPhysicalHandle(DWORD DriveIndex, BOOL bLockDrive, BOOL bWriteAccess, BOOL bWriteShare);
char* GetLogicalName(DWORD DriveIndex, uint64_t PartitionOffset, BOOL bKeepTrailingBackslash, BOOL bSilent);
char* AltGetLogicalName(DWORD DriveIndex, uint64_t PartitionOffset, BOOL bKeepTrailingBackslash, BOOL bSilent);
BOOL WaitForLogical(DWORD DriveIndex, uint64_t PartitionOffset);
HANDLE GetLogicalHandle(DWORD DriveIndex, uint64_t PartitionOffset, BOOL bLockDrive, BOOL bWriteAccess, BOOL bWriteShare);
HANDLE GetPartitionHandle(DWORD DriveIndex, uint64_t PartitionOffset, BOOL bLockDrive, BOOL bWriteAccess, BOOL bWriteShare);
int GetDriveNumber(HANDLE hDrive, char* path);
BOOL GetDriveLetters(DWORD DriveIndex, char* drive_letters);
UINT GetDriveTypeFromIndex(DWORD DriveIndex);