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• Network_Use...hentication

This page provides a demonstration example of a model which will mount a users network home on to a folder in /home/user/Desktop with samba as the Network User Authenticator. This was tested with a Netboot Image. See DebianLive/Howto/Network_Image_Server for more information.

Layout

• Create a Netboot setup with KDM and CUPS
• Build a small userauthwrapper script to mount network home on /home/user/Desktop
• Cleanup between clients upon login

userauthwrapper script

On this part know that this script is a work in progress so test out with your own stuff. Also I have a CUPS conf file named /etc/cups/cupsd.conf.master as a template I can use sed against to tweak as I need. The userauthwrapper script expects to be used as:

userauthwrapper -u userID -p userID_Password -s share1:share2:share3:shareN -h SAMBA_HOST -c CUPS_SERVER

#!/bin/sh

set -e

ARGUMENTS="`getopt --longoptions user:,pass:,host:,shares:,cups:,usage,version --name=userauthwrapper --options u:p:h:s:c:uv --shell sh -- "${@}"`"

if [ "${?}" != "0" ]
then
        echo "Terminating." >&2
        exit 1
fi

eval set -- "${ARGUMENTS}"

while true
do
        case "${1}" in
                -u|--user)
                        MOUNT_USER="${2}"; shift 2
                        ;;
                -p|--pass)
                        MOUNT_PASS="${2}"; shift 2
                        ;;
                -h|--host)
                        MOUNT_HOST="${2}"; shift 2
                        ;;
                -s|--shares)
                        MOUNT_SHARES="${2}"; shift 2
                        ;;
                -c|--cups)
                        CUPS_SERVER="${2}"; shift 2
                        ;;
                --)
                        shift; break
                        ;;
                *)
                        echo "Command line parser problem. Exiting." >&2
                        exit 1
                        ;;
        esac
done

# Set the field seperator.
IFS=:
# Spin through the shares and mount as you can.
for share in $MOUNT_SHARES
do
        if [ -d ${HOME}/Desktop/${share} ];
        then
                # Do nothing since dir exists
                echo "${HOME}/Desktop/${share} already exists!" >&2
        else
                # Make the directories as we need them.
                echo "Making directory ${HOME}/Desktop/${share}." >&2
                mkdir -p ${HOME}/Desktop/${share}
        fi
        mount -t smbfs //${MOUNT_HOST}/${share} ${HOME}/Desktop/${share} -o username=${MOUNT_USER},password=${MOUNT_PASS},fmask=0666
        if [ "${?}" -eq "32" ]
        then
                echo "Mount Failure. Terminating." >&2
                echo "Attempting to remove mount point." >&2
                rmdir  ${HOME}/Desktop/${share}
                exit 1
        fi
done

sed 's/Browsing Off/Browsing On/g' /etc/cups/cupsd.conf.master>/etc/cups/cupsd.conf
echo "BrowsePoll ${CUPS_SERVER}" >> /etc/cups/cupsd.conf
/etc/init.d/cupsys restart

exit 0

Cleanup between clients upon login

Since KDM does not really have a post session, I am going to use the /etc/kde3/kdm/Xstartup to just clean out any mount points that 'user' has. So add the following to the /etc/kde3/kdm/Xstartup and it will do the cleanup work between sessions.

# This will unmount any mounts with regards to 'user'.
/bin/mount | /bin/grep user | /usr/bin/awk '{print "/bin/umount -l "$1" && /bin/rmdir "$3}' | /bin/sh

# This will clean up cups.
/bin/cp /etc/cups/cupsd.conf.master /etc/cups/cupsd.conf && /etc/init.d/cupsys stop