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Re: new Info on File Permission Problems on Windows XP, cygwin 1.3.22


Just curious. What "ntsec patch" are you referring to?

Larry

Mark Priest wrote:

Hello,

I was able to fix the problem with file permissions by adding the cvs users
into the Administrators group.  This should not be necessary from my
understanding of Cygwin and the ntsec patch.  This is a bit of a security
hole since these users have no reason to be Administrators on my Windows XP
Professional server.  I think that the permission problem I am experiencing
in the cvs repository is some kind of bug in the ntsec patch.

----- Original Message -----
From: "Mark Priest" <mpriest@erols.com>
To: <cygwin@cygwin.com>
Sent: Thursday, July 03, 2003 3:33 AM
Subject: File Permission Problems on Windows XP, cygwin 1.3.22



Hello,

I am serving a cvs repository from a Windows XP Professional machine under
Cygwin 1.3.22 and I believe that I am having a file permissions problem in
the cvs repository.  My repository is located at /cvs and all cvs users
belong to the "cvs" group as their primary group.  All directories in the
repository have rwx permissions for this group as well as for the owner.
Therefore, I should be able to replace the ,v files with a new version as
part of a commit for any users in the cvs group.  However, only the owner

of


each ,v file (i.e. the developer that added or last modified the file) can
successfully commit.  The CYGWIN environment variable is set to 'ntsec'.

When I commit files from a user that is not the owner of the file the

commit


fails as follows:

cvs -t commit -m "try commit" readme.txt (in directory C:\dev\bar)
cvs commit: notice: main loop with CVSROOT=:ext:markp@192.168.2.105:/cvs
-> Starting server: plink.exe 192.168.2.105 -i
C:\keys\mpriest_private.PPK -l markp cvs server
-> Sending file `readme.txt' to server
S-> write_lock(/cvs/bar)
S-> checkout (/cvs/bar/readme.txt,v, 1.1.1.1, , (function))
S-> Parse_Info (/cvs/CVSROOT/commitinfo, bar, ALL)
Checking in readme.txt;
/cvs/bar/readme.txt,v  <--  readme.txt
S-> Parse_Info (/cvs/CVSROOT/verifymsg, bar, not ALL)
S-> checkout (/cvs/bar/readme.txt,v, 1.1, -ko, /tmp/cvs003472)
new revision: 1.2; previous revision: 1.1
S-> rename(/cvs/bar/,readme.txt,,/cvs/bar/readme.txt,v)
cvs [server aborted]: cannot rename file /cvs/bar/,readme.txt, to
/cvs/bar/readme.txt,v: Permission denied
S-> unlink_file(/cvs/bar/,readme.txt,)
S-> Lock_Cleanup()

I have seen this error message discussed on the cvs mailing list archives
but those discussion were only relevant for cases where people hosted the
repository on a network share.  My /cvs repository is in a local hard disk
directory.

When I try to emulate a file move as this same user, markp, directly in

the


repository at the cygwin command prompt I experience the same permission
error as follows:

markp@markonius /cvs/bar
$ id
uid=1019(markp) gid=1015(cvs) groups=513(None),545(Users),1015(cvs)

markp@markonius /cvs/bar
$ pwd
/cvs/bar

markp@markonius /cvs/bar
$ ls -alF
total 3
drwxrwxr-x+   2 cvs      cvs             0 Jul  3 02:48 ./
drwxrwxr-x+   7 cvs      cvs             0 Jun 30 17:16 ../
-r--r--r--    1 markp    cvs           542 Jun 30 17:27 bar.c,v
-r--r--r--    1 markp    cvs           406 Jun 30 17:16 bar.h,v
-r--r--r--    1 cvsuser  cvs           423 Jun 30 17:33 readme.txt,v

markp@markonius /cvs/bar
$ cp readme.txt,v tmp

markp@markonius /cvs/bar
$ ls -alF
total 4
drwxrwxr-x+   2 cvs      cvs             0 Jul  3 02:50 ./
drwxrwxr-x+   7 cvs      cvs             0 Jun 30 17:16 ../
-r--r--r--    1 markp    cvs           542 Jun 30 17:27 bar.c,v
-r--r--r--    1 markp    cvs           406 Jun 30 17:16 bar.h,v
-r--r--r--    1 cvsuser  cvs           423 Jun 30 17:33 readme.txt,v
-r--r--r--    1 markp    cvs           423 Jul  3 02:50 tmp

markp@markonius /cvs/bar
$ mv tmp readme.txt,v
mv: cannot move `tmp' to `readme.txt,v': Permission denied

markp@markonius /cvs/bar
$ echo $CYGWIN
ntsec

markp@markonius /cvs/bar


When I perform this same operation as the file owner the attempt succeeds (and so does a regular CVS commit operation) as follows:

cvsuser@markonius /cvs/bar
$ id
uid=1016(cvsuser) gid=1015(cvs) groups=513(None),545(Users),1015(cvs)

cvsuser@markonius /cvs/bar
$ echo $CYGWIN
ntsec

cvsuser@markonius /cvs/bar
$ pwd
/cvs/bar

cvsuser@markonius /cvs/bar
$ ls -alF
total 3
drwxrwxr-x+   2 cvs      cvs             0 Jul  3 02:53 ./
drwxrwxr-x+   7 cvs      cvs             0 Jun 30 17:16 ../
-r--r--r--    1 markp    cvs           542 Jun 30 17:27 bar.c,v
-r--r--r--    1 markp    cvs           406 Jun 30 17:16 bar.h,v
-r--r--r--    1 cvsuser  cvs           423 Jun 30 17:33 readme.txt,v

cvsuser@markonius /cvs/bar
$ cp readme.txt,v tmp

cvsuser@markonius /cvs/bar
$ ls -alF
total 4
drwxrwxr-x+   2 cvs      cvs             0 Jul  3 02:53 ./
drwxrwxr-x+   7 cvs      cvs             0 Jun 30 17:16 ../
-r--r--r--    1 markp    cvs           542 Jun 30 17:27 bar.c,v
-r--r--r--    1 markp    cvs           406 Jun 30 17:16 bar.h,v
-r--r--r--    1 cvsuser  cvs           423 Jun 30 17:33 readme.txt,v
-r--r--r--    1 cvsuser  cvs           423 Jul  3 02:53 tmp

cvsuser@markonius /cvs/bar
$ mv tmp readme.txt,v

cvsuser@markonius /cvs/bar
$ ls -alF
total 3
drwxrwxr-x+   2 cvs      cvs             0 Jul  3 02:53 ./
drwxrwxr-x+   7 cvs      cvs             0 Jun 30 17:16 ../
-r--r--r--    1 markp    cvs           542 Jun 30 17:27 bar.c,v
-r--r--r--    1 markp    cvs           406 Jun 30 17:16 bar.h,v
-r--r--r--    1 cvsuser  cvs           423 Jul  3 02:53 readme.txt,v

I have attached the results of cygcheck to this email and I have the

CYGWIN


environment variable set to 'ntsec'.

Please help me understand what is wrong with my repository file

permissions.


Thanks,
Mark


--
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
838 Washington Street                   (508) 893-9889 - FAX
Holliston, MA 01746


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