Reproducible bug in 3.0.2a ACL support

[Olaf Frączyk]

On Thu, 2004-04-15 at 15:08, Jan Koop wrote:
> Hi list,
> 
> this is the situation:
> 
> Basics:
> RH AS 3.0 Update 1
> Kernel  2.4.21-9.0.1.ELsmp
> Samba 3.0.2a
> Filesystem: ext3
> Mount options: acl,noatime
> 
> Config:
> Role: PDC
> passdb backend = ldapsam:ldapi://%2fvar%2frun%2fldapi/
> 
> Everything works so far. Now the problem:
> 
> We have a file "example.doc" which is a word 8 (word 97) file.
> The file is owned by "alice", group "users"
> 
> getfacl output:
> # file: example.doc
> # owner: alice
> # group: users
> user::rwx
> group::r-x
> group:word:rwx
> mask::rwx
> other::---
> 
> alice and bob are in the additional group "word":
> [root at smb01 testdir]# id alice
> uid=1000(alice) gid=513(users) groups=513(users),1192(word)
> [root at smb01 testdir]# id bob
> uid=1001(bob) gid=513(users) groups=513(users),1192(word)
> 
> Group mapping and such is correctly set up.
> 
> Alice can use the file without any problems. Now bob comes along, opens 
> the file, changes it and writes to it.
> This is what happens to the ACLs/ownership:
> Bob takes ownership of the file, alice is placed on the ACL with her old 
> rights (rwx) and bob's user write bit is removed.
> 
> ACL output after the event:
> # file: example.doc
> # owner: bob
> # group: users
> user::r-x
> user:alice:rwx
> group::rwx
> group:word:rwx
> mask::rwx
> other::---
> 
> This results in the "write protected" flag being set on the client when 
> looking at it in "Properties...", thus enabling the client to only open 
> the file read only (as bob that is).
> 
> I was able to track down the problem to the combination of Office 97 
> running under Windows XP SP1. It does not occur using Office 97 under 
> Windows 9x nor using Office XP / Office 2003 under Windows XP SP1.
> 
> Overview:
> Office 97 under XP : BUG
> Office 97 under 9x : OK
> Office XP/2k3 under XP: OK
> Office XP/2k3 under 9x : ??? ;D
> 
> I haven't tried any Windows 2000 or Office 2000 versions, as well as no 
> NT or XP without SP1 Office 97 has SR-2a.
> This occurred in a similar setup using XFS w/ ACLs as well.
Hi,
I saw something similar with Office 2000 with Windows 2000.
Unfortunately I don't remember details.

Regards,

Olaf