samba - Feb 2000 - smbfs failure mounting DAVE Macintosh share

Hi,
 I tried to make my Linux box smbmount a remote share originating from a
Macintosh running the commercial package DAVE 2.5. The Linux box is a RedHat 6.0
with a 2.2.14 kernel (with smbfs inserted as a module) and samba-2.0.3; the iMac
ran MacOS9.
The directory to be shared, \\akemi\archivio, contained two files, aaa and bbb.
Here's what happened:

[root@sonal ~]# smbmount '\\akemi\archivio' [pwd] -c 'mount
/mnt/tmp'
[root@sonal ~]# ll /mnt/tmp/
ls: /mnt/tmp/aaa: No such file or directory
ls: /mnt/tmp/bbb: No such file or directory
total 1
drwxr-xr-x   1 root     root          512 Jan 29 17:22 ./
drwxr-xr-x   5 root     root         1024 Oct  1 10:18 ../

No filename came up in the dir listing.
Then (after unmounting of course :) I used a slightly different mount command,
as suggested in linux/Documentation/filesystems/smbfs.tx (even though Win95
wasn't really my case), and things got a bit better:

[root@sonal ~]# smbmount '\\akemi\archivio' [pwd] -c 'mount /mnt/tmp
-f 1755'
[root@sonal ~]# ll /mnt/tmp/
total 13679
drwxr-xr-x   1 root     root          512 Jan 29 19:22 ./
drwxr-xr-x   5 root     root         1024 Oct  1 10:18 ../
-rwxr-xr-x   1 root     root      5311915 Jan 29 13:26 aaa*
-rwxr-xr-x   1 root     root      8693911 Feb 28 02:56 bbb*
[root@sonal ~]# more /mnt/tmp/aaa
[root@sonal ~]# 

Here you can see that `more' produced no output, but as a consequence the
following messages were syslogged:
	smb_errno: class ERRDOS, code 221 from command 0x2
	smb_errno: class ERRDOS, code 221 from command 0x2
	smb_open: //aaa open failed, result=-5
	smb_readpage_sync: //aaa open failed, error=-5
	smb_errno: class ERRDOS, code 221 from command 0x2
	smb_errno: class ERRDOS, code 221 from command 0x2
	smb_open: //aaa open failed, result=-5
	smb_readpage_sync: //aaa open failed, error=-5
	smb_errno: class ERRDOS, code 221 from command 0x2
	smb_errno: class ERRDOS, code 221 from command 0x2
	smb_open: //aaa open failed, result=-5
	smb_readpage_sync: //aaa open failed, error=-5

I attempted a write access too:

[root@sonal ~]# touch /mnt/tmp/ccc
touch: /mnt/tmp/ccc: No such file or directory
	smb_create: //ccc failed, error=-2

Then I tried with -f 2755, then 3755, and got the same results as above.
4755 led to something slightly different:

[root@sonal ~]# smbmount '\\akemi\archivio' [pwd] -c 'mount /mnt/tmp
-f 4755'
[root@sonal ~]# ll /mnt/tmp
ls: /mnt/tmp: Input/output error
	smb_errno: class ERRSRV, code 255 from command 0x32
	smb_errno: class ERRSRV, code 255 from command 0x32
	smb_proc_getattr_ff: error for \, rcls=2, err=255

[root@sonal ~]# touch /mnt/tmp/ccc
touch: /mnt/tmp/ccc: Input/output error
	smb_lookup: find //ccc failed, error=-5

5755, 6755, 7755 behaved the same way as 1755.

All of the above was repeated using smbfs compiled monolithically into the
kernel, with identical results.
Note that mounting the Mac share from a Windows machine works OK, and
accessing the same share via smbclient seems to work well (files get listed
correctly and can be read and written), which led me to think it's a bug on
smbfs's side.
I also upgraded to samba-2.0.6 (precompiled rpm package) with no useful results
(furthermore being unable to pass the mount-time options).

TIA,
 David Santinoli

Hello dshedd;

dshedd wrote:
 "I'm new to samba.
 I use SWAT to administer samba on a Mac OS X server.
 I was able to add a couple of users, but now when a click on the Add User
 button I get the following message back.
 "User new-name does not exist in system password file (usually
/etc/passwd).
 Cannot add account without a valid local system user. " how to I get
around
 this?"

Simple answer - you can write a unix script to add a unix user to your
/etc/passwd file whenever a pc user tries to connect to your machine with a
username that is NOT mapped to an existing unix user name;  the smb.conf 
'add user script' parameter enables this.  Problem with this is you
really have
little control over users being added to your unix passwd file; it happens
without any intervention on your part (though you can of course do some creative
scripting to mask out 'undesirables'...)

For my own use,

I put together a quick hack based on the 2.0.6 version that will create an entry
in your /etc/passwd file of the form:

  <username from SWAT>:*:16838:20:Samba User added by SWAT:/tmp:/bin/sh

if you hit the add user button in the password management section of Swat and
there is NOT a  matching user defined in unix, and then go ahead and do the
adding of the user and password to the smbpasswd file as well.

It's not pretty (I didn't create any wrappers in the system.c for the
system
calls I used - it's not configurable, etc) but I have tested it here on my
HP-UX
11.0 system using standard /etc/passwd (NOT NIS) user authentication, and it
works. The hack is to the smbpasschange.c module for 2.0.6 version of Samba,
and I include the diff output for the changes here.
If the Samba team think this functionality would be of more general use, I'd
be
glad to pretty it up and submit it. It IS kinda nice to not have to do two
separate operations if your unix machine is pretty well dedicated to SAMBA
anyway...


diff smbpasschange.original.c smbpasschange.c
64a65,68
> /*********************************Added by DCM:3/3/2000*****************/
>       struct passwd newpwd;
>       FILE *passwdfile;
> /*********************************endAdd by DCM:3/3/2000*****************/
79a84,98
> /*********************************Added by DCM:3/3/2000*****************/
>                 newpwd.pw_name= user_name;
>                 newpwd.pw_passwd = "*";
>               newpwd.pw_uid = rand();
>                 while (getpwuid(newpwd.pw_uid)!= 0){
>               newpwd.pw_uid = rand();
>               }
>                 newpwd.pw_gid = 20;
>               newpwd.pw_age = 0;
>               newpwd.pw_gecos = "Samba User added by SWAT";
>               newpwd.pw_dir = "/tmp";
>               newpwd.pw_shell = "/bin/sh";
>                 passwdfile = fopen("/etc/passwd","ab");
>                 putpwent(&newpwd,passwdfile);
> /*********************************EndAdd by DCM:3/3/2000*****************/
82,83c101
< account without a valid local system user.\n", user_name);
<               return False;
---
> account without a valid local system user. Therefore, added user %s to
/etc/pa
sswd file.\n", user_name,user_name);

Hope this helps,
Don McCall