From: Jeff Layton <jlayton@redhat.com> To: Andreas Gruenbacher <agruenba@redhat.com>, Alexander Viro <viro@zeniv.linux.org.uk> Cc: "J. Bruce Fields" <bfields@fieldses.org>, linux-nfs@vger.kernel.org, Theodore Ts'o <tytso@mit.edu>, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org, Trond Myklebust <trond.myklebust@primarydata.com>, linux-kernel@vger.kernel.org, xfs@oss.sgi.com, Christoph Hellwig <hch@infradead.org>, Andreas Dilger <adilger.kernel@dilger.ca>, linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, Anna Schumaker <anna.schumaker@netapp.com> Subject: Re: [PATCH v23 05/22] vfs: Add permission flags for setting file attributes Date: Tue, 05 Jul 2016 07:18:41 -0400 [thread overview] Message-ID: <1467717521.3800.11.camel@redhat.com> (raw) In-Reply-To: <1467294433-3222-6-git-send-email-agruenba@redhat.com> On Thu, 2016-06-30 at 15:46 +0200, Andreas Gruenbacher wrote: > Richacls support permissions that allow to take ownership of a file, > change the file permissions, and set the file timestamps. Support that > by introducing new permission mask flags and by checking for those mask > flags in inode_change_ok(). > > Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> > Reviewed-by: J. Bruce Fields <bfields@redhat.com> > Reviewed-by: Steve French <steve.french@primarydata.com> > --- > fs/attr.c | 79 +++++++++++++++++++++++++++++++++++++++++++++--------- > include/linux/fs.h | 3 +++ > 2 files changed, 70 insertions(+), 12 deletions(-) > > diff --git a/fs/attr.c b/fs/attr.c > index 7ca7fa0..2a8c49c 100644 > --- a/fs/attr.c > +++ b/fs/attr.c > @@ -17,6 +17,65 @@ > #include > > /** > + * inode_extended_permission - permissions beyond read/write/execute > + * > + * Check for permissions that only richacls can currently grant. > + */ > +static int inode_extended_permission(struct inode *inode, int mask) > +{ > + if (!IS_RICHACL(inode)) > + return -EPERM; > + return inode_permission(inode, mask); > +} > + > +static bool inode_uid_change_ok(struct inode *inode, kuid_t ia_uid) > +{ > + if (uid_eq(current_fsuid(), inode->i_uid) && > + uid_eq(ia_uid, inode->i_uid)) > + return true; > + if (uid_eq(current_fsuid(), ia_uid) && > + inode_extended_permission(inode, MAY_TAKE_OWNERSHIP) == 0) > + return true; > + if (capable_wrt_inode_uidgid(inode, CAP_CHOWN)) > + return true; > + return false; > +} > + > +static bool inode_gid_change_ok(struct inode *inode, kgid_t ia_gid) > +{ > + int in_group = in_group_p(ia_gid); > + if (uid_eq(current_fsuid(), inode->i_uid) && > + (in_group || gid_eq(ia_gid, inode->i_gid))) > + return true; > + if (in_group && inode_extended_permission(inode, MAY_TAKE_OWNERSHIP) == 0) > + return true; > + if (capable_wrt_inode_uidgid(inode, CAP_CHOWN)) > + return true; > + return false; > +} > + > +/** > + * inode_owner_permitted_or_capable > + * > + * Check for permissions implicitly granted to the owner, like MAY_CHMOD or > + * MAY_SET_TIMES. Equivalent to inode_owner_or_capable for file systems > + * without support for those permissions. > + */ > +static bool inode_owner_permitted_or_capable(struct inode *inode, int mask) > +{ > + struct user_namespace *ns; > + > + if (uid_eq(current_fsuid(), inode->i_uid)) > + return true; > + if (inode_extended_permission(inode, mask) == 0) > + return true; > + ns = current_user_ns(); > + if (ns_capable(ns, CAP_FOWNER) && kuid_has_mapping(ns, inode->i_uid)) > + return true; > + return false; > +} > + > +/** > * inode_change_ok - check if attribute changes to an inode are allowed > * @inode: inode to check > * @attr: attributes to change > @@ -47,22 +106,18 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) > return 0; > > /* Make sure a caller can chown. */ > - if ((ia_valid & ATTR_UID) && > - (!uid_eq(current_fsuid(), inode->i_uid) || > - !uid_eq(attr->ia_uid, inode->i_uid)) && > - !capable_wrt_inode_uidgid(inode, CAP_CHOWN)) > - return -EPERM; > + if (ia_valid & ATTR_UID) > + if (!inode_uid_change_ok(inode, attr->ia_uid)) > + return -EPERM; > > /* Make sure caller can chgrp. */ > - if ((ia_valid & ATTR_GID) && > - (!uid_eq(current_fsuid(), inode->i_uid) || > - (!in_group_p(attr->ia_gid) && !gid_eq(attr->ia_gid, inode->i_gid))) && > - !capable_wrt_inode_uidgid(inode, CAP_CHOWN)) > - return -EPERM; > + if (ia_valid & ATTR_GID) > + if (!inode_gid_change_ok(inode, attr->ia_gid)) > + return -EPERM; > > /* Make sure a caller can chmod. */ > if (ia_valid & ATTR_MODE) { > - if (!inode_owner_or_capable(inode)) > + if (!inode_owner_permitted_or_capable(inode, MAY_CHMOD)) > return -EPERM; > /* Also check the setgid bit! */ > if (!in_group_p((ia_valid & ATTR_GID) ? attr->ia_gid : > @@ -73,7 +128,7 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) > > /* Check for setting the inode time. */ > if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)) { > - if (!inode_owner_or_capable(inode)) > + if (!inode_owner_permitted_or_capable(inode, MAY_SET_TIMES)) > return -EPERM; > } > > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 208f73b..bb36561 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -88,6 +88,9 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset, > #define MAY_CREATE_DIR 0x00000200 > #define MAY_DELETE_CHILD 0x00000400 > #define MAY_DELETE_SELF 0x00000800 > +#define MAY_TAKE_OWNERSHIP 0x00001000 > +#define MAY_CHMOD 0x00002000 > +#define MAY_SET_TIMES 0x00004000 > > /* > * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond Reviewed-by: Jeff Layton <jlayton@redhat.com> _______________________________________________ xfs mailing list xfs@oss.sgi.com http://oss.sgi.com/mailman/listinfo/xfs
WARNING: multiple messages have this Message-ID (diff)
From: Jeff Layton <jlayton@redhat.com> To: Andreas Gruenbacher <agruenba@redhat.com>, Alexander Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org>, "Theodore Ts'o" <tytso@mit.edu>, Andreas Dilger <adilger.kernel@dilger.ca>, "J. Bruce Fields" <bfields@fieldses.org>, Trond Myklebust <trond.myklebust@primarydata.com>, Anna Schumaker <anna.schumaker@netapp.com>, Dave Chinner <david@fromorbit.com>, linux-ext4@vger.kernel.org, xfs@oss.sgi.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-cifs@vger.kernel.org, linux-api@vger.kernel.org Subject: Re: [PATCH v23 05/22] vfs: Add permission flags for setting file attributes Date: Tue, 05 Jul 2016 07:18:41 -0400 [thread overview] Message-ID: <1467717521.3800.11.camel@redhat.com> (raw) In-Reply-To: <1467294433-3222-6-git-send-email-agruenba@redhat.com> On Thu, 2016-06-30 at 15:46 +0200, Andreas Gruenbacher wrote: > Richacls support permissions that allow to take ownership of a file, > change the file permissions, and set the file timestamps. Support that > by introducing new permission mask flags and by checking for those mask > flags in inode_change_ok(). > > Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com> > Reviewed-by: J. Bruce Fields <bfields@redhat.com> > Reviewed-by: Steve French <steve.french@primarydata.com> > --- > fs/attr.c | 79 +++++++++++++++++++++++++++++++++++++++++++++--------- > include/linux/fs.h | 3 +++ > 2 files changed, 70 insertions(+), 12 deletions(-) > > diff --git a/fs/attr.c b/fs/attr.c > index 7ca7fa0..2a8c49c 100644 > --- a/fs/attr.c > +++ b/fs/attr.c > @@ -17,6 +17,65 @@ > #include > > /** > + * inode_extended_permission - permissions beyond read/write/execute > + * > + * Check for permissions that only richacls can currently grant. > + */ > +static int inode_extended_permission(struct inode *inode, int mask) > +{ > + if (!IS_RICHACL(inode)) > + return -EPERM; > + return inode_permission(inode, mask); > +} > + > +static bool inode_uid_change_ok(struct inode *inode, kuid_t ia_uid) > +{ > + if (uid_eq(current_fsuid(), inode->i_uid) && > + uid_eq(ia_uid, inode->i_uid)) > + return true; > + if (uid_eq(current_fsuid(), ia_uid) && > + inode_extended_permission(inode, MAY_TAKE_OWNERSHIP) == 0) > + return true; > + if (capable_wrt_inode_uidgid(inode, CAP_CHOWN)) > + return true; > + return false; > +} > + > +static bool inode_gid_change_ok(struct inode *inode, kgid_t ia_gid) > +{ > + int in_group = in_group_p(ia_gid); > + if (uid_eq(current_fsuid(), inode->i_uid) && > + (in_group || gid_eq(ia_gid, inode->i_gid))) > + return true; > + if (in_group && inode_extended_permission(inode, MAY_TAKE_OWNERSHIP) == 0) > + return true; > + if (capable_wrt_inode_uidgid(inode, CAP_CHOWN)) > + return true; > + return false; > +} > + > +/** > + * inode_owner_permitted_or_capable > + * > + * Check for permissions implicitly granted to the owner, like MAY_CHMOD or > + * MAY_SET_TIMES. Equivalent to inode_owner_or_capable for file systems > + * without support for those permissions. > + */ > +static bool inode_owner_permitted_or_capable(struct inode *inode, int mask) > +{ > + struct user_namespace *ns; > + > + if (uid_eq(current_fsuid(), inode->i_uid)) > + return true; > + if (inode_extended_permission(inode, mask) == 0) > + return true; > + ns = current_user_ns(); > + if (ns_capable(ns, CAP_FOWNER) && kuid_has_mapping(ns, inode->i_uid)) > + return true; > + return false; > +} > + > +/** > * inode_change_ok - check if attribute changes to an inode are allowed > * @inode: inode to check > * @attr: attributes to change > @@ -47,22 +106,18 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) > return 0; > > /* Make sure a caller can chown. */ > - if ((ia_valid & ATTR_UID) && > - (!uid_eq(current_fsuid(), inode->i_uid) || > - !uid_eq(attr->ia_uid, inode->i_uid)) && > - !capable_wrt_inode_uidgid(inode, CAP_CHOWN)) > - return -EPERM; > + if (ia_valid & ATTR_UID) > + if (!inode_uid_change_ok(inode, attr->ia_uid)) > + return -EPERM; > > /* Make sure caller can chgrp. */ > - if ((ia_valid & ATTR_GID) && > - (!uid_eq(current_fsuid(), inode->i_uid) || > - (!in_group_p(attr->ia_gid) && !gid_eq(attr->ia_gid, inode->i_gid))) && > - !capable_wrt_inode_uidgid(inode, CAP_CHOWN)) > - return -EPERM; > + if (ia_valid & ATTR_GID) > + if (!inode_gid_change_ok(inode, attr->ia_gid)) > + return -EPERM; > > /* Make sure a caller can chmod. */ > if (ia_valid & ATTR_MODE) { > - if (!inode_owner_or_capable(inode)) > + if (!inode_owner_permitted_or_capable(inode, MAY_CHMOD)) > return -EPERM; > /* Also check the setgid bit! */ > if (!in_group_p((ia_valid & ATTR_GID) ? attr->ia_gid : > @@ -73,7 +128,7 @@ int inode_change_ok(struct inode *inode, struct iattr *attr) > > /* Check for setting the inode time. */ > if (ia_valid & (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET)) { > - if (!inode_owner_or_capable(inode)) > + if (!inode_owner_permitted_or_capable(inode, MAY_SET_TIMES)) > return -EPERM; > } > > diff --git a/include/linux/fs.h b/include/linux/fs.h > index 208f73b..bb36561 100644 > --- a/include/linux/fs.h > +++ b/include/linux/fs.h > @@ -88,6 +88,9 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset, > #define MAY_CREATE_DIR 0x00000200 > #define MAY_DELETE_CHILD 0x00000400 > #define MAY_DELETE_SELF 0x00000800 > +#define MAY_TAKE_OWNERSHIP 0x00001000 > +#define MAY_CHMOD 0x00002000 > +#define MAY_SET_TIMES 0x00004000 > > /* > * flags in file.f_mode. Note that FMODE_READ and FMODE_WRITE must correspond Reviewed-by: Jeff Layton <jlayton@redhat.com>
next prev parent reply other threads:[~2016-07-05 11:18 UTC|newest] Thread overview: 133+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-06-30 13:46 [PATCH v23 00/22] Richacls (Core and Ext4) Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher 2016-06-30 13:46 ` [PATCH v23 01/22] vfs: Add IS_ACL() and IS_RICHACL() tests Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher 2016-07-05 11:00 ` Jeff Layton 2016-07-05 11:00 ` Jeff Layton 2016-06-30 13:46 ` [PATCH v23 02/22] vfs: Add MAY_CREATE_FILE and MAY_CREATE_DIR permission flags Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher [not found] ` <1467294433-3222-3-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 11:02 ` Jeff Layton 2016-07-05 11:02 ` Jeff Layton 2016-07-05 11:02 ` Jeff Layton 2016-06-30 13:46 ` [PATCH v23 03/22] vfs: Add MAY_DELETE_SELF and MAY_DELETE_CHILD " Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher [not found] ` <1467294433-3222-4-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 11:07 ` Jeff Layton 2016-07-05 11:07 ` Jeff Layton 2016-07-05 11:07 ` Jeff Layton 2016-06-30 13:46 ` [PATCH v23 04/22] vfs: Make the inode passed to inode_change_ok non-const Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher [not found] ` <1467294433-3222-5-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 11:12 ` Jeff Layton 2016-07-05 11:12 ` Jeff Layton 2016-07-05 11:12 ` Jeff Layton 2016-06-30 13:46 ` [PATCH v23 05/22] vfs: Add permission flags for setting file attributes Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher 2016-07-05 11:18 ` Jeff Layton [this message] 2016-07-05 11:18 ` Jeff Layton 2016-06-30 13:46 ` [PATCH v23 06/22] richacl: In-memory representation and helper functions Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher 2016-07-05 11:34 ` Jeff Layton 2016-07-05 11:34 ` Jeff Layton 2016-07-05 11:34 ` Jeff Layton [not found] ` <1467718448.3800.16.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-11 10:11 ` Andreas Gruenbacher 2016-07-11 10:11 ` Andreas Gruenbacher 2016-07-11 10:11 ` Andreas Gruenbacher 2016-06-30 13:46 ` [PATCH v23 07/22] richacl: Permission mapping functions Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher 2016-07-05 13:39 ` Jeff Layton 2016-07-05 13:39 ` Jeff Layton 2016-07-05 13:39 ` Jeff Layton 2016-07-11 13:26 ` Andreas Gruenbacher 2016-07-11 13:26 ` Andreas Gruenbacher 2016-06-30 13:46 ` [PATCH v23 08/22] richacl: Compute maximum file masks from an acl Andreas Gruenbacher 2016-06-30 13:46 ` Andreas Gruenbacher [not found] ` <1467294433-3222-9-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 14:22 ` Jeff Layton 2016-07-05 14:22 ` Jeff Layton 2016-07-05 14:22 ` Jeff Layton 2016-07-05 17:08 ` Frank Filz 2016-07-05 17:08 ` Frank Filz 2016-07-05 17:08 ` Frank Filz 2016-07-13 12:34 ` Andreas Gruenbacher 2016-07-13 12:34 ` Andreas Gruenbacher 2016-07-13 19:38 ` Frank Filz 2016-07-13 19:38 ` Frank Filz 2016-07-13 19:38 ` Frank Filz 2016-06-30 13:47 ` [PATCH v23 09/22] richacl: Permission check algorithm Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-05 14:59 ` Jeff Layton 2016-07-05 14:59 ` Jeff Layton 2016-07-11 13:28 ` Andreas Gruenbacher 2016-07-11 13:28 ` Andreas Gruenbacher 2016-06-30 13:47 ` [PATCH v23 10/22] posix_acl: Improve xattr fixup code Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher [not found] ` <1467294433-3222-11-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 15:38 ` Jeff Layton 2016-07-05 15:38 ` Jeff Layton 2016-07-05 15:38 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 11/22] vfs: Cache base_acl objects in inodes Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher [not found] ` <1467294433-3222-12-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-05 15:56 ` Jeff Layton 2016-07-05 15:56 ` Jeff Layton 2016-07-05 15:56 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 12/22] vfs: Add get_richacl and set_richacl inode operations Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher [not found] ` <1467294433-3222-13-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-06 18:31 ` Jeff Layton 2016-07-06 18:31 ` Jeff Layton 2016-07-06 18:31 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 13/22] vfs: Cache richacl in struct inode Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher [not found] ` <1467294433-3222-14-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-06 18:57 ` Jeff Layton 2016-07-06 18:57 ` Jeff Layton 2016-07-06 18:57 ` Jeff Layton 2016-07-14 20:02 ` Andreas Gruenbacher 2016-07-14 20:02 ` Andreas Gruenbacher [not found] ` <1467831425.2908.16.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-07 14:14 ` David Howells 2016-07-07 14:14 ` David Howells 2016-07-07 14:14 ` David Howells 2016-06-30 13:47 ` [PATCH v23 14/22] richacl: Update the file masks in chmod() Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher [not found] ` <1467294433-3222-15-git-send-email-agruenba-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-12 11:36 ` Jeff Layton 2016-07-12 11:36 ` Jeff Layton 2016-07-12 11:36 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 15/22] richacl: Check if an acl is equivalent to a file mode Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 11:39 ` Jeff Layton 2016-07-12 11:39 ` Jeff Layton 2016-07-12 11:39 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 16/22] richacl: Create-time inheritance Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 11:41 ` Jeff Layton 2016-07-12 11:41 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 17/22] richacl: Automatic Inheritance Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 11:56 ` Jeff Layton 2016-07-12 11:56 ` Jeff Layton 2016-07-12 11:56 ` Jeff Layton [not found] ` <1468324560.7798.14.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-12 19:11 ` J. Bruce Fields 2016-07-12 19:11 ` J. Bruce Fields 2016-07-12 19:11 ` J. Bruce Fields [not found] ` <20160712191142.GE449-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org> 2016-07-12 20:28 ` Andreas Gruenbacher 2016-07-12 20:28 ` Andreas Gruenbacher 2016-07-12 20:28 ` Andreas Gruenbacher 2016-06-30 13:47 ` [PATCH v23 18/22] richacl: xattr mapping functions Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 12:02 ` Jeff Layton 2016-07-12 12:02 ` Jeff Layton 2016-07-14 20:33 ` Andreas Gruenbacher 2016-07-14 20:33 ` Andreas Gruenbacher 2016-06-30 13:47 ` [PATCH v23 19/22] richacl: Add richacl xattr handler Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 12:13 ` Jeff Layton 2016-07-12 12:13 ` Jeff Layton 2016-06-30 13:47 ` [PATCH v23 20/22] vfs: Add richacl permission checking Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-07-12 12:13 ` Jeff Layton 2016-07-12 12:13 ` Jeff Layton 2016-07-12 12:13 ` Jeff Layton [not found] ` <1468325634.7798.24.camel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> 2016-07-14 20:59 ` Andreas Gruenbacher 2016-07-14 20:59 ` Andreas Gruenbacher 2016-07-14 20:59 ` Andreas Gruenbacher 2016-06-30 13:47 ` [PATCH v23 21/22] ext4: Add richacl support Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-06-30 13:47 ` [PATCH v23 22/22] ext4: Add richacl feature flag Andreas Gruenbacher 2016-06-30 13:47 ` Andreas Gruenbacher 2016-06-30 14:11 ` [PATCH v23 00/22] Richacls (Core and Ext4) Volker Lendecke 2016-06-30 14:11 ` Volker Lendecke
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