[misc] add more file systems to GetFsName()

* This improve the post-write drive letter assignation attempt when writing a multi-partition raw images.
* Closes #3002.

src/drive.c

@@ -1507,24 +1507,19 @@ BOOL AnalyzePBR(HANDLE hLogicalVolume)
 
 /*
  * This call returns the offset of the first ESP partition found
- * on the relevant drive, or 0ULL if no ESP was found.
+ * on the relevant drive, or -1 if no ESP was found.
  */
-uint64_t GetEspOffset(DWORD DriveIndex)
+int64_t GetEspOffset(HANDLE hPhysical)
 {
-	uint64_t ret = 0ULL;
+	int64_t ret = -1;
 	BOOL r;
-	HANDLE hPhysical;
 	DWORD size, i;
 	BYTE layout[4096] = { 0 };
 	PDRIVE_LAYOUT_INFORMATION_EX DriveLayout = (PDRIVE_LAYOUT_INFORMATION_EX)(void*)layout;
 
-	hPhysical = GetPhysicalHandle(DriveIndex, FALSE, TRUE, TRUE);
-	if (hPhysical == INVALID_HANDLE_VALUE)
-		return FALSE;
-
 	r = DeviceIoControl(hPhysical, IOCTL_DISK_GET_DRIVE_LAYOUT_EX, NULL, 0, layout, sizeof(layout), &size, NULL);
 	if (!r || size <= 0) {
-		uprintf("Could not get layout for drive 0x%02x: %s", DriveIndex, WindowsErrorString());
+		uprintf("Could not get drive layout: %s", WindowsErrorString());
 		goto out;
 	}
 
@@ -1537,7 +1532,6 @@ uint64_t GetEspOffset(DWORD DriveIndex)
 	}
 
 out:
-	safe_closehandle(hPhysical);
 	return ret;
 }
 
@@ -1731,10 +1725,33 @@ out:
 }
 
 // This is a crude attempt at detecting file systems through their superblock magic.
-// Note that we only attempt to detect the file systems that Rufus can format as
-// well as a couple other maintsream ones.
 const char* GetFsName(HANDLE hPhysical, LARGE_INTEGER StartingOffset)
 {
+	typedef struct {
+		const char* name;
+		const uint8_t magic[4];
+	} magic_type;
+	const magic_type magic_types[] = {
+		{ "SquashFS", { 'h', 's', 'q', 's' } },
+		{ "CramFS", { 0x45, 0x3D, 0xCD, 0x28 } },
+		{ "XFS", { 'X', 'F', 'S', 'B' } },
+		{ "LUKS", { 'L', 'U', 'K', 'S' } },
+		{ "MD RAID", { 0xFC, 0x4E, 0x2B, 0xA9 } },
+		{ "U-Boot Legacy uImage", { 0x27, 0x05, 0x19, 0x56 } },
+		{ "Device Tree/U-Boot FIT", { 0xD0, 0x0D, 0xFE, 0xED } },
+		{ "Device Tree Overlay", { 0xD7, 0xB7, 0xAB, 0x1E } },
+		{ "Android Sparse Image", { 0x3A, 0xFF, 0x26, 0xED } },
+		{ "Android Verified Boot", { 'A', 'V', 'B', '0' } },
+		{ "Qualcomm Device Tree", { 'Q', 'C', 'D', 'T' } },
+		{ "Rockchip Resource Image", { 'R', 'S', 'C', 'E' } },
+		{ "Rockchip Kernel Image", { 'K', 'R', 'N', 'L' } },
+		{ "Rockchip Parameter Image", { 'P', 'A', 'R', 'M' } },
+		{ "Rockchip Firmware Image", { 'R', 'K', 'F', 'W' } },
+		{ "Amlogic Image", { '@', 'A', 'M', 'L' } },
+		{ "Allwinner Image", { 'e', 'G', 'O', 'N' } },
+		{ "Mediatek Image", { 0x88, 0x16, 0x88, 0x58 } },
+		{ "Mediatek Extension", { 0x88, 0x16, 0x89, 0x58 } },
+	};
 	typedef struct {
 		const char* name;
 		const uint8_t magic[8];
@@ -1759,25 +1776,30 @@ const char* GetFsName(HANDLE hPhysical, LARGE_INTEGER StartingOffset)
 		{ 0x00000013, 0x0000004C, 0x0003F780 }
 	};
 	const char* ext_names[] = { "ext", "ext2", "ext3", "ext4" };
+	const uint8_t erofs_magic[4] = { 0xE2, 0xE1, 0xF5, 0xE0 };
+	const uint8_t f2fs_magic[4] = { 0x10, 0x20, 0xF5, 0xF2 };
 	const char* ret = "(Unrecognized)";
 	DWORD i, j, offset, size, sector_size = 512;
 	uint8_t* buf = calloc(sector_size, 1);
 	if (buf == NULL)
 		goto out;
 
-	// 1. Try to detect ISO9660/FAT/exFAT/NTFS/ReFS/SquashFS through the 512 bytes superblock at offset 0
+	// 1. Detect magic-based file systems through the 512 bytes superblock at offset 0
 	if (!SetFilePointerEx(hPhysical, StartingOffset, NULL, FILE_BEGIN))
 		goto out;
 	if (!ReadFile(hPhysical, buf, sector_size, &size, NULL) || size != sector_size)
 		goto out;
-	if (memcmp("hsqs", buf, 4) == 0) {
-		ret = "SquashFS";
-		goto out;
-	}
 	if (strncmp("CD001", &buf[0x01], 5) == 0) {
 		ret = "ISO9660";
 		goto out;
 	}
+	for (i = 0; i < ARRAYSIZE(magic_types); i++)
+		if (memcmp(buf, magic_types[i].magic, 4) == 0)
+			break;
+	if (i < ARRAYSIZE(magic_types)) {
+		ret = magic_types[i].name;
+		goto out;
+	}
 
 	// The beginning of a superblock for FAT/exFAT/NTFS/ReFS is pretty much always the same:
 	// There are 3 bytes potentially used for a jump instruction, and then are 8 bytes of
@@ -1825,8 +1847,8 @@ const char* GetFsName(HANDLE hPhysical, LARGE_INTEGER StartingOffset)
 		goto out;
 	}
 
-	// 3. Try to detect ext2/ext3/ext4 through the 512 bytes superblock at offset 1024
+	// 3. Try to detect ext2/ext3/ext4/EROFS/F2FS through the 512 bytes superblock at
-	// We're already at the right offset
+	// offset 1024 (which StartingOffset already points to)
 	if (!SetFilePointerEx(hPhysical, StartingOffset, NULL, FILE_BEGIN))
 		goto out;
 	if (!ReadFile(hPhysical, buf, sector_size, &size, NULL) || size != sector_size)
@@ -1845,6 +1867,14 @@ const char* GetFsName(HANDLE hPhysical, LARGE_INTEGER StartingOffset)
 			ret = ext_names[rev];
 		goto out;
 	}
+	if (memcmp(buf, erofs_magic, 4) == 0) {
+		ret = "EROFS";
+		goto out;
+	}
+	if (memcmp(buf, f2fs_magic, 4) == 0) {
+		ret = "F2FS";
+		goto out;
+	}
 
 	// 4. Try to detect UDF through by looking for a "BEA01\0" string at offset 0xC001
 	// NB: This is not thorough UDF detection but good enough for our purpose.

src/drive.h

@@ -408,7 +408,8 @@ BOOL CyclePort(int index);
 int CycleDevice(int index);
 BOOL RefreshLayout(DWORD DriveIndex);
 BOOL GetOpticalMedia(IMG_SAVE* img_save);
-uint64_t GetEspOffset(DWORD DriveIndex);
+int64_t GetEspOffset(HANDLE hPhysical);
 BOOL ToggleEsp(DWORD DriveIndex, uint64_t PartitionOffset);
+const char* GetFsName(HANDLE hPhysical, LARGE_INTEGER StartingOffset);
 BOOL IsMsDevDrive(DWORD DriveIndex);
 BOOL IsFilteredDrive(DWORD DriveIndex);

src/format.c

@@ -1444,7 +1444,7 @@ out:
  */
 DWORD WINAPI FormatThread(void* param)
 {
-	int r;
+	int i, r;
 	BOOL ret, windows_to_go, actual_lock_drive = lock_drive, write_as_ext = FALSE;
 	// Windows 11 and VDS (which I suspect is what fmifs.dll's FormatEx() is now calling behind the scenes)
 	// require us to unlock the physical drive to format the drive, else access denied is returned.
@@ -1517,7 +1517,9 @@ DWORD WINAPI FormatThread(void* param)
 	}
 
 	// Unassign all drives letters
-	drive_name[0] = RemoveDriveLetters(DriveIndex, TRUE, FALSE);
+	// For raw images, keep the primary partition on the earliest prior letter
+	// so we don't steal the secondary partition's former mountpoint.
+	drive_name[0] = RemoveDriveLetters(DriveIndex, !((boot_type == BT_IMAGE) && write_as_image), FALSE);
 	if (drive_name[0] == 0) {
 		uprintf("Unable to find a drive letter to use");
 		ErrorStatus = RUFUS_ERROR(APPERR(ERROR_CANT_ASSIGN_LETTER));
@@ -2042,18 +2044,25 @@ out:
 		PrintInfo(0, MSG_320, lmprintf(MSG_307));
 		Sleep(200);
 		VdsRescan(VDS_RESCAN_REFRESH, 0, TRUE);
-		// Trying to mount accessible partitions after writing an image leads to the
+		// Try to remount the first non ESP partition we see with a file system that Windows supports
-		// creation of the infamous 'System Volume Information' folder on ESPs, which
+		hPhysicalDrive = GetPhysicalHandle(DriveIndex, FALSE, TRUE, TRUE);
-		// in turn leads to checksum errors for Ubuntu's boot/grub/efi.img (that maps
+		if (hPhysicalDrive != INVALID_HANDLE_VALUE) {
-		// to the Ubuntu ESP). So we only call the code below if there are no ESPs or
+			int64_t esp_offset = GetEspOffset(hPhysicalDrive);
-		// if we're running a Ventoy image.
+			for (i = 0; i < SelectedDrive.nPartitions; i++) {
-		if ((GetEspOffset(DriveIndex) == 0) || (img_report.compression_type == BLED_COMPRESSION_VTSI)) {
+				LARGE_INTEGER li = { .QuadPart = SelectedDrive.Partition[partition_index[i]].Offset };
-			WaitForLogical(DriveIndex, 0);
+				if (li.QuadPart == esp_offset)	// Skip any ESP
-			if (GetDrivePartitionData(SelectedDrive.DeviceNumber, fs_name, sizeof(fs_name), TRUE)) {
+					continue;
-				volume_name = GetLogicalName(DriveIndex, 0, TRUE, TRUE);
+				const char* fs = GetFsName(hPhysicalDrive, li);
-				if ((volume_name != NULL) && (MountVolume(drive_name, volume_name)))
+				if (fs != NULL && (strcmp(fs, "NTFS") == 0 || strcmp(fs, "exFAT") == 0 ||
-					uprintf("Remounted %s as %c:", volume_name, toupper(drive_name[0]));
+					strcmp(fs, "ReFS") == 0 || strncmp(fs, "FAT", 3) == 0)) {
+					WaitForLogical(DriveIndex, li.QuadPart);
+					volume_name = GetLogicalName(DriveIndex, li.QuadPart, TRUE, TRUE);
+					if ((volume_name != NULL) && (MountVolume(drive_name, volume_name)))
+						uprintf("Remounted %s as %c:", volume_name, toupper(drive_name[0]));
+					break;
+				}
 			}
+			safe_closehandle(hPhysicalDrive);
 		}
 	}
 	if (IS_ERROR(ErrorStatus)) {

src/rufus.rc

@@ -33,7 +33,7 @@ LANGUAGE LANG_NEUTRAL, SUBLANG_NEUTRAL
 IDD_DIALOG DIALOGEX 12, 12, 232, 326
 STYLE DS_SETFONT | DS_MODALFRAME | DS_CENTER | WS_MINIMIZEBOX | WS_POPUP | WS_CAPTION | WS_SYSMENU
 EXSTYLE WS_EX_ACCEPTFILES
-CAPTION "Rufus 4.15.2407"
+CAPTION "Rufus 4.15.2409"
 FONT 9, "Segoe UI Symbol", 400, 0, 0x0
 BEGIN
     LTEXT           "Drive Properties",IDS_DRIVE_PROPERTIES_TXT,8,6,53,12,NOT WS_GROUP
@@ -409,8 +409,8 @@ END
 //
 
 VS_VERSION_INFO VERSIONINFO
- FILEVERSION 4,15,2407,0
+ FILEVERSION 4,15,2409,0
- PRODUCTVERSION 4,15,2407,0
+ PRODUCTVERSION 4,15,2409,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS 0x1L
@@ -428,13 +428,13 @@ BEGIN
             VALUE "Comments", "https://rufus.ie"
             VALUE "CompanyName", "Akeo Consulting"
             VALUE "FileDescription", "Rufus"
-            VALUE "FileVersion", "4.15.2407"
+            VALUE "FileVersion", "4.15.2409"
             VALUE "InternalName", "Rufus"
             VALUE "LegalCopyright", "© 2011-2026 Pete Batard (GPL v3)"
             VALUE "LegalTrademarks", "https://www.gnu.org/licenses/gpl-3.0.html"
             VALUE "OriginalFilename", "rufus-4.15.exe"
             VALUE "ProductName", "Rufus"
-            VALUE "ProductVersion", "4.15.2407"
+            VALUE "ProductVersion", "4.15.2409"
         END
     END
     BLOCK "VarFileInfo"