git: cd9660 - Fix unexpected file/dir mode mask in 7764eb663ae501

[Matthew Dillon]

commit 44d26fef007fd5282db87e8bea6faec2b48d2803
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date:   Wed Jan 8 08:09:31 2025 -0800

    cd9660 - Fix unexpected file/dir mode mask in 7764eb663ae501
    
    * 7764eb663ae501 used the modes of the underlying mount point as the
      default fmask and dmask for cd9660 mounts when no masking options
      are specified.   This is unexpected.  Prior to that commit, the modes
      from ISO were used verbatim.
    
    * This commit returns to the old (more expected) operation when
      -m/-M is not specified.
    
    * Also make some adjustments to ensure that new kernels work with
      old worlds and vise-versa.  Make use of the fields require the
      related mount flag and also default the fields to all modes when
      -m/-M is not specified.  Any mismatch will have the prior (expected)
      operation.
    
    Reported-by: Sergey Zigachev (servik)

Summary of changes:
 sbin/mount_cd9660/mount_cd9660.c     | 19 ++++++++++++++++---
 sys/vfs/isofs/cd9660/cd9660_mount.h  |  1 +
 sys/vfs/isofs/cd9660/cd9660_vfsops.c |  9 +++++++--
 3 files changed, 24 insertions(+), 5 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/44d26fef007fd5282db87e8bea6faec2b48d2803


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