This repository is a fork of the ntfs-3g project, that enables building ntfs-3g into a fully functional UEFI NTFS driver.
The resulting driver, which includes both read and write capabilities, can be compiled with either Visual Studio 2022 (EDK2 or gnu-efi) or gcc (EDK2 only) for all of the IA32, X64, ARM, AARCH64 and LOONGARCH64 UEFI architectures.
If using Visual Studio 2022, the driver can also be tested through QEMU.
The changes that are applied on top of the ntfs-3g source can be found, as detailed individual commits, in this repository.
The default UEFI driver provides read-write access to an NTFS volume.
If you would rather compile a read-only version of this driver, you can either define the FORCE_READONLY macro in include/uefi-driver/uefi-driver.h or pass that macro as a compiler option (through -D FORCE_READONLY=TRUE if using EDK2).
This assumes that you have gcc (5.0 or later) and the EDK2 installed. For this example, we assume that EDK2 is located in /usr/src/edk2.
Open a command prompt at the top of this repository and issue:
export WORKSPACE=$PWD
export EDK2_PATH=/usr/src/edk2
export PACKAGES_PATH=$WORKSPACE:$EDK2_PATH
source $EDK2_PATH/edksetup.sh --reconfig
build -a X64 -b RELEASE -t GCC5 -p uefi-driver.dsc
You may also use IA32, ARM, AARCH64 or RISCV64 for the -a parameter to build a driver for these architectures noting however that you need to have the relevant toolchain and GCC prefix set.
For instance, to compile for ARM, ARM64 and RISCV64, you would need to also issue:
export GCC5_ARM_PREFIX=arm-linux-gnueabi-
export GCC5_AARCH64_PREFIX=aarch64-linux-gnu-
export GCC5_RISCV64_PREFIX=riscv64-linux-gnu-
This assumes that you have Visual Studio 2022 installed.
Open the VS2022 solution file and build using the IDE.
If you have QEMU installed under C:\Program Files\qemu\ you should also be able to test the driver for any of the supported architectures (IA32, X64, ARM and ARM64). Of course building and testing for the latter requires that you selected the relevant C++ components during Visual Studio installation. Any required test components (NTFS virtual disk, QEMU UEFI firmware) is downloaded automatically by the test script.
This assumes that you have Visual Studio 2022, EDK2 and Nasm installed. For this examples, we assume that EDK2 is installed in D:\EDK2 and Nasm in D:\Nasm.
Open a command prompt at the top of this repository and issue:
"C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvars64.bat"
set WORKSPACE=%cd%
set EDK2_PATH=D:\EDK2
set NASM_PREFIX=D:\Nasm\
set PACKAGES_PATH=%WORKSPACE%;%EDK2_PATH%
%EDK2_PATH%\edksetup.bat reconfig
build -a X64 -b RELEASE -t VS2019 -p uefi-driver.dsc
You may also use IA32, ARM or AARCH64 for the -a parameter to build a driver for these architectures noting however that, for ARM or ARM64 compilation, you must have selected the relevant C++ components during Visual Studio install.
Simply load the driver from a UEFI Shell using the load command and then issue map -r to remap volumes. This should grant access to any NTFS volume that is accessible from UEFI.
Note that NTFS volumes are unmounted, fully, as soon as the last open file handle to that volume is closed. This should make the driver safe for surprise removal/shutdown as long as you don't perform these operations in the middle of a Shell command or during the execution of a UEFI application.
This UEFI NTFS driver should comply with the UEFI specifications, and especially with sections 13.4 and 13.5 from version 2.10 of the specs.
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