Dynamic Configuration Values et al.

Fri Sep 12 11:34:33 GMT 1997

**
** I posted this message quite a time ago. Some people use my patch and I
** receive queries for a recent version from time to time. This patch didn't
** make it into the mainstream distribution yet. Sorry.
**
** This is the updated version for Samba-1.9.17p1.
**

Hello, people.

I have implemented some enhancements for Samba:

  1. dynamic configuration-values
  2. configurable attribute-mappings
  3. configuration parameter to make a service mountable but offline
  4. volume-labels longer than 8 chars have to be sent as 8.n

Here are the details:

  1. dynamic configuration-values
  -------------------------------

  This enhancement allows the value of a configuration parameter to be
  read from a file or a command. 
  This is done whenever the parameter is needed by Samba, not when smb.conf
  is parsed.

  Syntax:

    parameter = < filename      sets 'parameter' to the first line of
                                the contents of the specified file

    parameter = <$ filename     sets 'parameter' to the first line of
                                the contents of the specified file after
                                applying the normal variable substititions
                                to it

    parameter = | command       sets 'parameter' to the first line of
                                the output of the specified command

    parameter = |$ command      sets 'parameter' to the first line of
                                the contents of the specified command after
                                applying the normal variable substititions
                                to it

  Example:

    volume = |/usr/local/bin/cdlbl /dev/cd0

  2. configurable attribute-mappings
  ----------------------------------
  These parameters allow to change the UNIX-representation of the DOS
  attributes. This can be handy when re-exporting non-unix-filesystems
  that have another representation of the DOS attributes than the Samba-
  default (CDROMs for example).

  Syntax:

    system mode = octal mode    sets the UNIX-mode-mask to represent the DOS-
                                system-file attribute (Default: 0010)

    archive mode = octal mode   sets the UNIX-mode-mask to represent the DOS-
                                archived attribute (Default: 0100)

    hidden mode = octal mode    sets the UNIX-mode-mask to represent the DOS-
                                hidden attribute (Default: 0001)

  Example:

    hidden mode = 01000
    archive mode = 02000
    system mode = 04000

  3. configuration parameter to make a service mountable but offline
  ------------------------------------------------------------------
  Sometimes you want to allow your clients to mount a share but not
  to do anything with it (example: ejected or empty CDROM: should
  be mountable but not readable). One way would be to set 'path =' to
  an empty directory but that doesn't really tell the truth to the
  client. This new parameter replies with an error-message if the client
  tries to do something else but mounting or unmounting the share.

  Syntax:

    online = boolean            on (default): service can be used
                                off: every action except connect and
                                     disconnect produces an error

  Example:

    online = | /usr/local/bin/cdmounted /dev/cd0

  4. volume-labels longer than 8 chars have to be sent as 8.n
  -----------------------------------------------------------
  Tracing a problem related to a CDROM-label longer than 8 characters
  I found that Windows sends such labels with a '.' after the 8th
  character. With this patch Samba does that as well.
  The problem was that a DOS program running in a DOS-Box did not
  recognize a CDROM that was exported by Samba.

I hope that these patches are useful for anybody else but me :-)
Please send comments and replies to <cal at zls.de>

--Christian

----------------------------------------------------------------------
Christian A. Lademann                              EMail: <cal at zls.de>
--------------------- speaking from, not for: ------------------------
    ZLS Software GmbH                         Tel.:  (+49) 6195 900500
     D-65779 Kelkheim                         Fax:   (+49) 6195 900600
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end
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