cifs: get mode bits from special sid on stat

Browse source

When mounting with "modefromsid" retrieve mode bits from
special SID (S-1-5-88-3) on stat.  Subsequent patch will fix
setattr (chmod) to save mode bits in S-1-5-88-3-<mode>

Note that when an ACE matching S-1-5-88-3 is not found, we
default the mode to an approximation based on the owner, group
and everyone permissions (as with the "cifsacl" mount option).

See See e.g.
    https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-R2-and-2008/hh509017(v=ws.10)

Signed-off-by: Steve French <stfrench@microsoft.com>

...

This commit is contained in:

Steve French 2019-07-19 06:30:07 +00:00

parent 1afdea4f19

commit e2f8fbfb8d

3 changed files with 38 additions and 13 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

37

fs/cifs/cifsacl.c

View file

1

fs/cifs/cifsproto.h

View file

13

fs/cifs/inode.c

View file