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This implements/adds selinux labelling support to mkfs.ubifs
utility. It adds an extra option in configure to enable
selinux labelling support and then finally in mkfs.ubifs adds
an extra option to pass the file_contexts which is looked up
for filesystem file labels.
- Default behavior is kept without selinux so as to not break existing
support where selinux library/headers may not be present.
- If this is configured with --with-selinux then XATTR from the
file_contexts(passed with --selinux option while mkfs.ubifs)
will be taken and not from the host file's xattr.
This is done to avoid the problem where the host OS may have
selinux enabled and hence same xattr names will be present in both
host filesystem files and from the --selinux=file passed.
So the existing behavior is kept mutually exclusive and preference
is given to selinux xattrs (if configured with --with-selinux).
Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
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