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|
#!/bin/bash
# Author: Steven Shiau <steven _at_ clonezilla org>
# License: GPL
# Description: To set the server so that client can run gdm/kdm remotely.
# Load DRBL setting and functions
DRBL_SCRIPT_PATH="${DRBL_SCRIPT_PATH:-/usr/share/drbl}"
. $DRBL_SCRIPT_PATH/sbin/drbl-conf-functions
#
check_if_root
# Get the $GDM_CFG/$KDM_CFG filename
get_gdm_kdm_conf_filename
if [ -z "$GDM_CFG" -a -z "$KDM_CFG" ]; then
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
echo "The GDM or KDM config file is NOT found! Skip setting the DM! Maybe you will not be able to make this DRBL server as thin client server!"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
exit 1
fi
#
SERVER_INIT="5"
#
usage() {
echo "Description:"
echo "Switch the DRBL clients to thin or powerful mode."
echo "Usage: `basename $0` [-p|--powerful] [-t|--thin]"
echo "-p, --powerful Powerful client"
echo "-t, --thin Thin client"
echo "-h, --hosts IP_LIST Instead of all DRBL clients, assign the clients by IP address, like: -h \"192.168.0.1 192.168.0.2\" NOTE!!! You must put \" \" before and after the IP_LIST!"
echo "-g, --no-gen-ssi Do NOT generate DRBL SSI template tarball."
language_help_prompt_by_idx_no
language_help_prompt_by_idx_name
}
# option
while [ $# -gt 0 ]; do
case "$1" in
-p|--powerful)
shift; xdmcp_mode="off"
;;
-t|--thin)
shift; xdmcp_mode="on"
;;
-h|--hosts)
shift;
LIST_HOST="on"
if [ -z "$(echo $1 |grep ^-.)" ]; then
# skip the -xx option, in case
IP_LIST="$1"
fi
shift ;;
-g|--no-gen-ssi)
gen_ssi="no"
shift;;
-l|--language)
shift;
if [ -z "$(echo $1 |grep ^-.)" ]; then
# skip the -xx option, in case
language_opt="$1"
fi
shift ;;
-ln)
shift;
if [ -z "$(echo $1 |grep ^-.)" ]; then
# skip the -xx option, in case
language_opt="$1"
fi
shift ;;
-*) echo "${0}: ${1}: invalid option" >&2
usage >& 2
exit 2 ;;
*) break ;;
esac
done
[ -z "$xdmcp_mode" ] && usage && exit 1
#
ask_and_load_lang_set $language_opt
# function
clean_all_client_drblthincli_cfg() {
# clean the drblthincli
find $drblroot/*/$SYSCONF_PATH/ -name drblthincli -exec rm -f {} \;
}
#
set_gdm_remote_access() {
action=$1
case "$action" in
"on")
# make sure inittab in the clients is runlevel 5, only in RH-like
[ ! -f /etc/debian_version ] && switch_clients_init 5 $IP_LIST
# for server
if [ -e "$GDM_CFG" ]; then
# Set DisallowTCP=false in $GDM_CFG
lines="$(get_block_line_in_gdm_kdm xdmcp $GDM_CFG)"
begin_line=$(echo $lines | awk -F" " '{print $1}')
end_line=$(echo $lines | awk -F" " '{print $2}')
chk_cmd="if ($begin_line..$end_line) {print}"
if [ -n "$(perl -n -e "$chk_cmd" $GDM_CFG | grep -iE "^DisallowTCP=")" ]; then
sub_cmd="if ($begin_line..$end_line) {s/^DisallowTCP=.*/DisallowTCP=false/}"
perl -pi -e "$sub_cmd" $GDM_CFG
else
# insert 1 blank line
sub_cmd="if ($((end_line))..$((end_line))) {s/^(.*)$/\$1\n/gi}"
perl -pi -e "$sub_cmd" $GDM_CFG
# replace the one we want in the added blank line
sub_cmd="if ($((end_line+1))..$((end_line+1))) {s/^$/DisallowTCP=false/gi}"
perl -pi -e "$sub_cmd" $GDM_CFG
fi
fi
if [ -e "$FAC_GDM_CFG" ]; then
# Debian Etch does not have $FAC_GDM_CFG
perl -p -i -e "s/^[[:space:]]*#*DisallowTCP=.*/DisallowTCP=false/" $FAC_GDM_CFG
fi
#
lines=$(get_block_line_in_gdm_kdm xdmcp $GDM_CFG)
begin_line=$(echo $lines | awk -F" " '{print $1}')
end_line=$(echo $lines | awk -F" " '{print $2}')
chk_cmd="if ($begin_line..$end_line) {print}"
# If we found the xdmcp in gdm.conf is "Enable=false", enable it.
# If the xdmcp setting is already on, we should not restart gdm if in graphic mode (runlevel 5 or dm is running)
# but If the xdmcp setting is already on, we should start gdm if in text mode (runlevel 3 or dm is NOT running)
if [ -e /etc/debian_version ]; then
# Debian
default_dm="$(drbl-check-dm)"
pid_run="$(cat /var/run/${default_dm}.pid 2>/dev/null)"
if [ -n "$(ps --pid $pid_run | grep $default_dm 2>/dev/null)" ]; then
srv_mode=graphic
else
srv_mode=text
fi
else
# RH-like or SUSE
RL=$(runlevel | awk -F" " '{print $2}')
if [ "$RL" = "5" ]; then
srv_mode=graphic
else
srv_mode=text
fi
fi
if [ -n "$(perl -n -e "$chk_cmd" $GDM_CFG | grep -iE "^Enable=false")" ]; then
echo "$msg_turn_on_gdm_remote_access"
sub_cmd="if ($begin_line..$end_line) {s/^Enable=.*/Enable=true/}"
perl -pi -e "$sub_cmd" $GDM_CFG
# Ask user to restart gdm if necessary
[ ! -f /etc/debian_version ] && perl -p -i -e "s/^id:[1-5]:initdefault:/id:$SERVER_INIT:initdefault:/g" /etc/inittab
if [ "$srv_mode" = "graphic" ]; then
# alread in graphic mode, assume gdm is running.
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "$msg_logout_X_for_thin_client_gdm"
/usr/sbin/gdm-safe-restart
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
else
# not in graphic mode, start gdm now
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "$msg_restart_graphic_mode_later"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
fi
elif [ -n "$(perl -n -e "$chk_cmd" $GDM_CFG | grep -iE "^Enable=true")" ]; then
echo "$msg_gdm_remote_access_is_already_on"
# If the xdmcp setting is already on, we should start gdm if in runlevel 3
if [ "$srv_mode" = "text" ]; then
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "$msg_restart_graphic_mode_later"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
fi
else
# Empty, such as default custom.conf, we should insert Enable=true in $GDM_CFG
lines="$(get_block_line_in_gdm_kdm xdmcp $GDM_CFG)"
begin_line=$(echo $lines | awk -F" " '{print $1}')
end_line=$(echo $lines | awk -F" " '{print $2}')
chk_cmd="if ($begin_line..$end_line) {print}"
if [ -n "$(perl -n -e "$chk_cmd" $GDM_CFG | grep -iE "^Enable=")" ]; then
sub_cmd="if ($begin_line..$end_line) {s/^Enable=.*/Enable=true/}"
perl -pi -e "$sub_cmd" $GDM_CFG
else
# insert 1 blank line
sub_cmd="if ($((end_line))..$((end_line))) {s/^(.*)$/\$1\n/gi}"
perl -pi -e "$sub_cmd" $GDM_CFG
# replace the one we want in the added blank line
sub_cmd="if ($((end_line+1))..$((end_line+1))) {s/^$/Enable=true/gi}"
perl -pi -e "$sub_cmd" $GDM_CFG
fi
fi
# make the tag for client
echo "$msg_set_thin_client_mode_for_clients"
for ihost in $drblroot/*; do
# skip those IP not listed in the $IP_LIST
if [ "$LIST_HOST" = "on" ]; then
[ -z "$(echo $IP_LIST | grep -E "\<${ihost##/*/}\>")" ] && continue
fi
echo "Set system config DRBL_THIN_CLIENT=on for client ${ihost##/*/}"
echo "DRBL_THIN_CLIENT=on" > $ihost/$SYSCONF_PATH/drblthincli
done
echo "$msg_done !"
;;
"off")
if [ -e "$GDM_CFG" ]; then
# Set DisallowTCP=true in $GDM_CFG
lines="$(get_block_line_in_gdm_kdm xdmcp $GDM_CFG)"
begin_line=$(echo $lines | awk -F" " '{print $1}')
end_line=$(echo $lines | awk -F" " '{print $2}')
chk_cmd="if ($begin_line..$end_line) {print}"
if [ -n "$(perl -n -e "$chk_cmd" $GDM_CFG | grep -iE "^DisallowTCP=")" ]; then
sub_cmd="if ($begin_line..$end_line) {s/^DisallowTCP=.*/DisallowTCP=true/}"
perl -pi -e "$sub_cmd" $GDM_CFG
else
# insert 1 blank line
sub_cmd="if ($((end_line))..$((end_line))) {s/^(.*)$/\$1\n/gi}"
perl -pi -e "$sub_cmd" $GDM_CFG
# replace the one we want in the added blank line
sub_cmd="if ($((end_line+1))..$((end_line+1))) {s/^$/DisallowTCP=true/gi}"
perl -pi -e "$sub_cmd" $GDM_CFG
fi
fi
if [ -e "$FAC_GDM_CFG" ]; then
# Debian Etch does not have $FAC_GDM_CFG
perl -p -i -e "s/^[[:space:]]*#*DisallowTCP=.*/DisallowTCP=true/" $FAC_GDM_CFG
fi
lines=$(get_block_line_in_gdm_kdm xdmcp $GDM_CFG)
begin_line=$(echo $lines | awk -F" " '{print $1}')
end_line=$(echo $lines | awk -F" " '{print $2}')
chk_cmd="if ($begin_line..$end_line) {print}"
# If we found the xdmcp in gdm.conf is "Enable=true", disable it.
# If the xdmcp is already off, we should not restart gdm
if [ -n "$(perl -n -e "$chk_cmd" $GDM_CFG | grep -iE "^Enable=true")" ]; then
echo "$msg_turn_on_gdm_remote_access"
sub_cmd="if ($begin_line..$end_line) {s/^Enable=.*/Enable=false/}"
perl -pi -e "$sub_cmd" $GDM_CFG
# Ask user to restart gdm if necessary
[ ! -f /etc/debian_version ] && perl -p -i -e "s/^id:[1-5]:initdefault:/id:$SERVER_INIT:initdefault:/g" /etc/inittab
if [ "$srv_mode" = "graphic" ]; then
# alread in graphic mode, assume gdm is running.
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "$msg_logout_X_for_thin_client_gdm"
/usr/sbin/gdm-safe-restart
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
else
# not in graphic mode, start gdm now
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "$msg_restart_graphic_mode_later"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
fi
elif [ -n "$(perl -n -e "$chk_cmd" $GDM_CFG | grep -iE "^Enable=false")" ]; then
echo "$msg_gdm_remote_access_is_already_off"
else
# Empty, such as default custom.conf, we should insert Enable=false in $GDM_CFG
lines="$(get_block_line_in_gdm_kdm xdmcp $GDM_CFG)"
begin_line=$(echo $lines | awk -F" " '{print $1}')
end_line=$(echo $lines | awk -F" " '{print $2}')
chk_cmd="if ($begin_line..$end_line) {print}"
if [ -n "$(perl -n -e "$chk_cmd" $GDM_CFG | grep -iE "^Enable=")" ]; then
sub_cmd="if ($begin_line..$end_line) {s/^Enable=.*/Enable=false/}"
perl -pi -e "$sub_cmd" $GDM_CFG
else
# insert 1 blank line
sub_cmd="if ($((end_line))..$((end_line))) {s/^(.*)$/\$1\n/gi}"
perl -pi -e "$sub_cmd" $GDM_CFG
# replace the one we want in the added blank line
sub_cmd="if ($((end_line+1))..$((end_line+1))) {s/^$/Enable=false/gi}"
perl -pi -e "$sub_cmd" $GDM_CFG
fi
fi
# make a tag for not using thin client
echo "$msg_disable_thin_client_mode_for_clients"
for ihost in $drblroot/*; do
# skip those IP not listed in the $IP_LIST
if [ "$LIST_HOST" = "on" ]; then
[ -z "$(echo $IP_LIST | grep -E "\<${ihost##/*/}\>")" ] && continue
fi
if [ -d "$$ihost/$SYSCONF_PATH" ]; then
echo "Set system config DRBL_THIN_CLIENT=off for client ${ihost##/*/}"
echo "DRBL_THIN_CLIENT=off" > $ihost/$SYSCONF_PATH/drblthincli
fi
done
echo "$msg_done !"
;;
esac
}
set_kdm_remote_access() {
# no $FAC_GDM_CFG file for KDM
# and it seems no DisallowTCP in KDM_CFG, anyway, just set it if available
action=$1
case "$action" in
"on")
# make sure inittab in the clients is runlevel 5, only in RH-like
[ ! -f /etc/debian_version ] && switch_clients_init 5 $IP_LIST
# for server
perl -p -i -e "s/^[[:space:]]*#*DisallowTCP=.*/DisallowTCP=false/" $KDM_CFG
lines=$(get_block_line_in_gdm_kdm xdmcp $KDM_CFG)
begin_line=$(echo $lines | awk -F" " '{print $1}')
end_line=$(echo $lines | awk -F" " '{print $2}')
chk_cmd="if ($begin_line..$end_line) {print}"
# If we found the xdmcp in kdmrc is "Enable=false", enable it.
# If the xdmcp setting is already on, we should not restart kdm if in graphic mode (runlevel 5 or dm is running)
# but If the xdmcp setting is already on, we should start kdm if in text mode (runlevel 3 or dm is NOT running)
if [ -e /etc/debian_version ]; then
# Debian
default_dm="$(drbl-check-dm)"
pid_run="$(cat /var/run/${default_dm}.pid 2>/dev/null)"
if [ -n "$(ps --pid $pid_run | grep $default_dm 2>/dev/null)" ]; then
srv_mode=graphic
else
srv_mode=text
fi
else
# RH-like
RL=$(runlevel | awk -F" " '{print $2}')
if [ "$RL" = "5" ]; then
srv_mode=graphic
else
srv_mode=text
fi
fi
if [ -n "$(perl -n -e "$chk_cmd" $KDM_CFG | grep "^Enable=false")" ]; then
echo "$msg_turn_on_kdm_remote_access"
sub_cmd="if ($begin_line..$end_line) {s/^Enable=.*/Enable=true/}"
perl -pi -e "$sub_cmd" $KDM_CFG
# Ask user to restart kdm if necessary
[ ! -f /etc/debian_version ] && perl -p -i -e "s/^id:[1-5]:initdefault:/id:$SERVER_INIT:initdefault:/g" /etc/inittab
if [ "$srv_mode" = "graphic" ]; then
# alread in graphic mode, assume kdm is running.
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "$msg_restart_X_for_thin_client_kdm"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
else
# not in graphic mode, start gdm now
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "$msg_restart_graphic_mode_later"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
fi
else
echo "$msg_kdm_remote_access_is_already_on"
if [ "$srv_mode" = "text" ]; then
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "$msg_restart_graphic_mode_later"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
fi
fi
# make the tag for client
echo "$msg_set_thin_client_mode_for_clients"
for ihost in $drblroot/*; do
# skip those IP not listed in the $IP_LIST
if [ "$LIST_HOST" = "on" ]; then
[ -z "$(echo $IP_LIST | grep -E "\<${ihost##/*/}\>")" ] && continue
fi
echo "Set system config DRBL_THIN_CLIENT=on for client ${ihost##/*/}"
echo "DRBL_THIN_CLIENT=on" > $ihost/$SYSCONF_PATH/drblthincli
done
echo "$msg_done !"
;;
"off")
perl -p -i -e "s/^[[:space:]]*#*DisallowTCP=.*/DisallowTCP=true/" $KDM_CFG
lines=$(get_block_line_in_gdm_kdm xdmcp $KDM_CFG)
begin_line=$(echo $lines | awk -F" " '{print $1}')
end_line=$(echo $lines | awk -F" " '{print $2}')
chk_cmd="if ($begin_line..$end_line) {print}"
# If we found the xdmcp in gdm.conf is "Enable=true", disable it.
# If the xdmcp is already off, we should not restart gdm
if [ -n "$(perl -n -e "$chk_cmd" $KDM_CFG | grep "^Enable=true")" ]; then
echo "$msg_turn_off_kdm_remote_access"
sub_cmd="if ($begin_line..$end_line) {s/^Enable=.*/Enable=false/}"
perl -pi -e "$sub_cmd" $KDM_CFG
# Ask user to restart kdm if necessary
[ ! -f /etc/debian_version ] && perl -p -i -e "s/^id:[1-5]:initdefault:/id:$SERVER_INIT:initdefault:/g" /etc/inittab
[ "$BOOTUP" = "color" ] && $SETCOLOR_FAILURE
echo "$msg_logout_X_for_modified_kdm_config_work"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
else
echo "$msg_kdm_remote_access_is_already_off"
fi
# make a tag for not using thin client
echo "$msg_disable_thin_client_mode_for_clients"
for ihost in $drblroot/*; do
# skip those IP not listed in the $IP_LIST
if [ "$LIST_HOST" = "on" ]; then
[ -z "$(echo $IP_LIST | grep -E "\<${ihost##/*/}\>")" ] && continue
fi
echo "Set system config DRBL_THIN_CLIENT=off for client ${ihost##/*/}"
echo "DRBL_THIN_CLIENT=off" > $ihost/$SYSCONF_PATH/drblthincli
done
echo "$msg_done !"
;;
esac
}
RC=""
preferred="$(drbl-check-dm)"
if [ "$preferred" = "gdm" -a -z "$GDM_CFG" ]; then
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
echo "The GDM config file is NOT found! Skip setting the DM! Maybe you will not be able to make this DRBL server as thin client server!"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
exit 1
fi
if [ "$preferred" = "kdm" -a -z "$KDM_CFG" ]; then
[ "$BOOTUP" = "color" ] && $SETCOLOR_WARNING
echo "The KDM config file is NOT found! Skip setting the DM! Maybe you will not be able to make this DRBL server as thin client server!"
[ "$BOOTUP" = "color" ] && $SETCOLOR_NORMAL
exit 1
fi
RC=$?
[ $RC -eq 0 ] && echo "$msg_dm_in_DRBL_server \"$preferred\""
#
case "$preferred" in
gdm)
set_gdm_remote_access $xdmcp_mode
;;
kdm|mdkkdm)
set_kdm_remote_access $xdmcp_mode
;;
esac
#
if [ "$gen_ssi" != "no" ]; then
echo "-------------------------------------------------------"
echo "Since some config files are modified in template client, creating template tarball for DRBL SSI..."
drbl-gen-ssi-files
fi
|
