Re: [PATCH 0/4] read-only UDF file system support

["Zeng, Star" <star.zeng@intel.com>]

Cc Ray and Hao.

-----Original Message-----
From: Paulo Alcantara [mailto:pcacjr@zytor.com] 
Sent: Wednesday, August 9, 2017 3:32 AM
To: edk2-devel@lists.01.org
Cc: Paulo Alcantara <pcacjr@zytor.com>; Laszlo Ersek <lersek@redhat.com>; Justen, Jordan L <jordan.l.justen@intel.com>; Andrew Fish <afish@apple.com>; Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming <liming.gao@intel.com>; Zeng, Star <star.zeng@intel.com>; Dong, Eric <eric.dong@intel.com>; Doran, Mark <mark.doran@intel.com>
Subject: [PATCH 0/4] read-only UDF file system support

Hi,

I'm posting this series again after ~3 years that introduces UDF file system support in UEFI. Why? Because Laszlo (or Red Hat) seemed to be interested in such support.

I started working on this driver just as an excuse to learn UEFI development at that time. This work isn't based on any previous one and it's BSD licensed. I also *never* intended to replace it with the default FAT file system. On the contrary, I was looking to give people an opportunity to use file system features that current FAT file system lacks.

This series was never reviewed or fully tested. I basically used Linux and mkudffs[1] to test different UDF disks, as well as booting a Linux (EFI stub) rootfs from UDF file systems. Please, I'd really appreciate if some of one could help reviewing or testing it.

Note that UDF file system support was *only* added to OVMF platform and it's disabled by default through UDF_ENABLE build option. There's also a feature PCD flag that turns on or off parsing of UDF volumes during partition discovery in PartitionDxe driver.

Branch: https://github.com/pcacjr/edk2/tree/udf-fs

Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Mark Doran <mark.doran@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Paulo Alcantara <pcacjr@zytor.com>
---

Paulo Alcantara (4):
  MdeModulePkg/PartitionDxe: Add UDF/ECMA-167 file system support
  MdeModulePkg: Initial UDF/ECMA-167 file system support
  MdeModulePkg/UdfDxe: Add seek, read and listing support on files
  OvmfPkg: Introduce UDF_ENABLE build flag

 MdeModulePkg/MdeModulePkg.dec                      |    6 +
 .../Universal/Disk/PartitionDxe/Partition.c        |    3 +-
 .../Universal/Disk/PartitionDxe/Partition.h        |   41 +-
 .../Universal/Disk/PartitionDxe/PartitionDxe.inf   |   10 +-
 MdeModulePkg/Universal/Disk/PartitionDxe/Udf.c     |  335 +++
 MdeModulePkg/Universal/Disk/UdfDxe/ComponentName.c |  185 ++
 MdeModulePkg/Universal/Disk/UdfDxe/File.c          |  901 +++++++
 MdeModulePkg/Universal/Disk/UdfDxe/FileName.c      |  195 ++
 .../Universal/Disk/UdfDxe/FileSystemOperations.c   | 2532 ++++++++++++++++++++
 MdeModulePkg/Universal/Disk/UdfDxe/Udf.c           |  407 ++++
 MdeModulePkg/Universal/Disk/UdfDxe/Udf.h           | 1276 ++++++++++
 MdeModulePkg/Universal/Disk/UdfDxe/UdfDxe.inf      |   66 +
 MdePkg/Include/IndustryStandard/Udf.h              |   78 +
 OvmfPkg/OvmfPkgIa32.dsc                            |    7 +
 OvmfPkg/OvmfPkgIa32.fdf                            |    3 +
 OvmfPkg/OvmfPkgIa32X64.dsc                         |    7 +
 OvmfPkg/OvmfPkgIa32X64.fdf                         |    3 +
 OvmfPkg/OvmfPkgX64.dsc                             |    7 +
 OvmfPkg/OvmfPkgX64.fdf                             |    3 +
 19 files changed, 6057 insertions(+), 8 deletions(-)  create mode 100644 MdeModulePkg/Universal/Disk/PartitionDxe/Udf.c
 create mode 100644 MdeModulePkg/Universal/Disk/UdfDxe/ComponentName.c
 create mode 100644 MdeModulePkg/Universal/Disk/UdfDxe/File.c
 create mode 100644 MdeModulePkg/Universal/Disk/UdfDxe/FileName.c
 create mode 100644 MdeModulePkg/Universal/Disk/UdfDxe/FileSystemOperations.c
 create mode 100644 MdeModulePkg/Universal/Disk/UdfDxe/Udf.c
 create mode 100644 MdeModulePkg/Universal/Disk/UdfDxe/Udf.h
 create mode 100644 MdeModulePkg/Universal/Disk/UdfDxe/UdfDxe.inf
 create mode 100644 MdePkg/Include/IndustryStandard/Udf.h

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2.11.0