[PATCH v16 00/22] Richacls (Core and Ext4)

[Andreas Gruenbacher]

Here is another update to the richacl patch queue.  I still think these patches
are ready for the next merge window.

In reply to the previous posting (https://lkml.org/lkml/2015/11/11/60),
Christoph has commented that richacls should use new syscalls as their
user-space interface instead of xattrs; the arguments didn't seem very
convincing though.  So instead, I started looking into things that can be
improved in the xattr code (see https://lkml.org/lkml/2015/12/2/343).


Changes since the last posting:

 * Fix a typo (https://lkml.org/lkml/2015/11/10/681) that was causing
   getxattr to return 95 instead of failing with error EOPNOTSUPP when
   richacls were disabled.

 * The user namespace conversions for richacls have moved from the VFS
   into the get and set operations of richacl_xattr_handler; the VFS
   doesn't have to bother anymore.

   (POSIX ACLs arguably should behave the same way, but fixing that
   without breaking anything is tricky.)


The complete patch queue is available in git form here:

  git://git.kernel.org/pub/scm/linux/kernel/git/agruen/linux-richacl.git \
        richacl-2015-11-09


The richacl user-space utilitites, man pages, and test suite are available
here:

  https://github.com/andreas-gruenbacher/richacl


Changes to other user-space packages for richacl are available here:

  https://github.com/andreas-gruenbacher/coreutils
  https://github.com/andreas-gruenbacher/e2fsprogs
  https://github.com/andreas-gruenbacher/xfsprogs-dev
  https://github.com/andreas-gruenbacher/nfs-utils


Please see the richacl homepage for more information:

  http://www.bestbits.at/richacl/


Thanks,
Andreas

Andreas Gruenbacher (20):
  vfs: Add IS_ACL() and IS_RICHACL() tests
  vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags
  vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD permission flags
  vfs: Make the inode passed to inode_change_ok non-const
  vfs: Add permission flags for setting file attributes
  richacl: In-memory representation and helper functions
  richacl: Permission mapping functions
  richacl: Compute maximum file masks from an acl
  richacl: Permission check algorithm
  posix_acl: Unexport acl_by_type and make it static
  vfs: Cache base_acl objects in inodes
  vfs: Add get_richacl and set_richacl inode operations
  vfs: Cache richacl in struct inode
  richacl: Update the file masks in chmod()
  richacl: Check if an acl is equivalent to a file mode
  richacl: Create-time inheritance
  richacl: Automatic Inheritance
  richacl: xattr mapping functions
  richacl: Add richacl xattr handler
  vfs: Add richacl permission checking

Aneesh Kumar K.V (2):
  ext4: Add richacl support
  ext4: Add richacl feature flag

 drivers/staging/lustre/lustre/llite/llite_lib.c |   2 +-
 fs/Kconfig                                      |   3 +
 fs/Makefile                                     |   2 +
 fs/attr.c                                       |  81 +++-
 fs/ext4/Kconfig                                 |  11 +
 fs/ext4/Makefile                                |   1 +
 fs/ext4/ext4.h                                  |   6 +-
 fs/ext4/file.c                                  |   3 +
 fs/ext4/ialloc.c                                |  11 +-
 fs/ext4/inode.c                                 |  12 +-
 fs/ext4/namei.c                                 |   5 +
 fs/ext4/richacl.c                               | 142 ++++++
 fs/ext4/richacl.h                               |  40 ++
 fs/ext4/super.c                                 |  49 +-
 fs/ext4/xattr.c                                 |   7 +
 fs/f2fs/acl.c                                   |   4 +-
 fs/inode.c                                      |  15 +-
 fs/jffs2/acl.c                                  |  10 +-
 fs/namei.c                                      | 118 +++--
 fs/posix_acl.c                                  |  50 +--
 fs/richacl_base.c                               | 564 ++++++++++++++++++++++++
 fs/richacl_inode.c                              | 333 ++++++++++++++
 fs/richacl_xattr.c                              | 298 +++++++++++++
 fs/xattr.c                                      |  34 +-
 include/linux/fs.h                              |  60 ++-
 include/linux/posix_acl.h                       |  13 +-
 include/linux/richacl.h                         | 208 +++++++++
 include/linux/richacl_xattr.h                   |  44 ++
 include/uapi/linux/Kbuild                       |   2 +
 include/uapi/linux/fs.h                         |   3 +-
 include/uapi/linux/richacl.h                    | 152 +++++++
 include/uapi/linux/richacl_xattr.h              |  44 ++
 include/uapi/linux/xattr.h                      |   2 +
 33 files changed, 2222 insertions(+), 107 deletions(-)
 create mode 100644 fs/ext4/richacl.c
 create mode 100644 fs/ext4/richacl.h
 create mode 100644 fs/richacl_base.c
 create mode 100644 fs/richacl_inode.c
 create mode 100644 fs/richacl_xattr.c
 create mode 100644 include/linux/richacl.h
 create mode 100644 include/linux/richacl_xattr.h
 create mode 100644 include/uapi/linux/richacl.h
 create mode 100644 include/uapi/linux/richacl_xattr.h

-- 
2.5.0

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