Re-fix bug 5202 - cannot change ACLs on writable file with "dos filemode=yes"
commite687a20d60144af2cb459231fb6a699f2533ce9d
authorJeremy Allison <jra@samba.org>
Fri, 8 Jan 2010 18:17:46 +0000 (8 10:17 -0800)
committerKarolin Seeger <kseeger@samba.org>
Mon, 11 Jan 2010 11:12:15 +0000 (11 12:12 +0100)
treef151f8ff82cb9c63b71d59eab542efdbe0231467
parentea7d2995f383e183ef4d8a21705a343581e71f4a
Re-fix bug 5202 - cannot change ACLs on writable file with "dos filemode=yes"

This bug re-occurred for 3.3.x and above.

The reason is that to change a NT ACL we now have to open the file requesting
WRITE_DAC and WRITE_OWNER access. The mapping from POSIX "w" to NT permissions
in posix_acls doesn't add these bits when "dos filemode = yes", so even though
the permission or owner change would be allowed by the POSIX ACL code, the
NTCreateX call fails with ACCESS_DENIED now we always check NT permissions
first.

Added in the mapping from "w" to WRITE_DAC and WRITE_OWNER access.

Jeremy.
(cherry picked from commit d7713d11a6dc2d66c820d7496bc45eb5fe527fbf)
source3/smbd/posix_acls.c