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PDB MySQL plugin for samba v1.1
--

Building
=========
Before you can build the plugin, set the variable SAMBA_SRC in Makefile to the
path containing the samba sources. This is usually the 'source' directory in 
the samba tarball or CVS. 

Next, type make, and then copy pdb_mysql.so to any location you want. I 
strongly recommend installing it in $PREFIX/lib or /usr/lib/samba/

Configuring
============
This plugin lacks some good documentation, but here is some short info:

Add a the following to the 'passdb backend' variable in your smb.conf:

passdb backend = [other-plugins] plugin:/location/to/pdb_mysql.so:identifier [other-plugins]

The identifier can be any string you like, as long as it doesn't collide with 
the identifiers of other plugins or other instances of pdb_mysql. If you 
specify multiple pdb_mysql.so entries in 'passdb backend', you also need to 
use different identifiers!

Additional options can be given thru the smb.conf file in the [global] section.

identifier:mysql host                     - host name, defaults to 'localhost'
identifier:mysql password
identifier:mysql user                     - defaults to 'samba'
identifier:mysql database                 - defaults to 'samba'
identifier:mysql port                     - defaults to 3306
identifier:table                          - Name of the table containing users

Names of the columns in this table(I've added column types those columns
                                   should have first):
identifier:logon time column             - int(9)
identifier:logoff time column            - int(9)
identifier:kickoff time column           - int(9)
identifier:pass last set time column     - int(9)
identifier:pass can change time column   - int(9)
identifier:pass must change time column  - int(9)
identifier:username column               - varchar(255) - unix username
identifier:domain column                 - varchar(255) - NT domain user is part of
identifier:nt username column            - varchar(255) - NT username
identifier:fullname column            - varchar(255) - Full name of user
identifier:home dir column               - varchar(255) - Unix homedir path
identifier:dir drive column              - varchar(2) - Directory drive path (eg: 'H:')
identifier:logon script column           - varchar(255) - Batch file to run on client side when logging on
identifier:profile path column           - varchar(255) - Path of profile
identifier:acct desc column              - varchar(255) - Some ASCII NT user data
identifier:workstations column           - varchar(255) - Workstations user can logon to (or NULL for all)
identifier:unknown string column         - varchar(255) - unknown string
identifier:munged dial column            - varchar(255) - ?
identifier:uid column                    - int(9) - Unix user ID (uid)
identifier:gid column                    - int(9) - Unix user group (gid)
identifier:user sid column               - varchar(255) - NT user SID
identifier:group sid column              - varchar(255) - NT group ID
identifier:lanman pass column            - varchar(255) - encrypted lanman password
identifier:nt pass column                - varchar(255) - encrypted nt passwd
identifier:plaintext pass column         - varchar(255) - plaintext password
identifier:acct control column           - int(9) - nt user data
identifier:unknown 3 column              - int(9) - unknown
identifier:logon divs column             - int(9) - ?
identifier:hours len column              - int(9) - ?
identifier:unknown 5 column              - int(9) - unknown
identifier:unknown 6 column              - int(9) - unknown

Eventually, you can put a colon (:) after the name of each column, which 
should specify the column to update when updating the table. You can also
specify nothing behind the colon - then the data from the field will not be 
updated. 

Using plaintext passwords or encrypted password
===============================================
I strongly discourage the use of plaintext passwords, however, you can use them:

If you would like to use plaintext passwords, set 'identifier:lanman pass column' and 'identifier:nt pass column' to 'NULL' (without the quotes) and 'identifier:plaintext pass column' to the name of the column containing the plaintext passwords. 

If you use encrypted passwords, set the 'identifier:plaintext pass column' to 'NULL' (without the quotes). This is the default.

Getting non-column data from the table
======================================
It is possible to have not all data in the database and making some 'constant'.

For example, you can set 'identifier:fullname column' to : 
    CONCAT(First_name,' ',Sur_name)

Or, set 'identifier:workstations column' to :
    NULL

See the MySQL documentation for more language constructs.