[Bug 264983] sysutils/fusefs-ntfs: Support device offset to mount

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 01 Jul 2022 17:31:07 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=264983

            Bug ID: 264983
           Summary: sysutils/fusefs-ntfs: Support device offset to mount
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: Individual Port(s)
          Assignee: ports-bugs@FreeBSD.org
          Reporter: kgermanov@axcient.com
                CC: freebsd@dussan.org
             Flags: maintainer-feedback?(freebsd@dussan.org)
                CC: freebsd@dussan.org

Created attachment 235027
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=235027&action=edit
add dev_offset

Usually NTFS volume located on device at some offset.
We can use losetup/mdconfig for map device from offset to another device and
mount this device.
But there are some problems:

It is new resourse, which has limited && can be leak
Method of mount is not portabled
Need copy data twice: for loop device and fuse
If we pass argument for device offset we can avoid such problems.

There is patch to implement this.

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