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#!/bin/sh
SAMBA_DHCP_CONF=/var/lib/samba/dhcp.conf
netbios_setup() {
# No need to continue if we're called with an unsupported option
case $reason in
BOUND|RENEW|REBIND|REBOOT|EXPIRE|FAIL|RELEASE|STOP)
;;
*)
return
;;
esac
umask 022
local other_servers=""
local serverlist=""
# the destination file won't exist yet on the first run after
# installing samba
if [ -e $SAMBA_DHCP_CONF ] && [ -s $SAMBA_DHCP_CONF ]
then
# don't continue if no settings have changed
if [ "$new_netbios_name_servers" = "$old_netbios_name_servers" ] \
&& [ "$new_netbios_scope" = "$old_netbios_scope" ] \
&& [ -n "$new_netbios_name_servers" ]
then
return
fi
# reparse our own file
other_servers=`sed -n -e"s/[[:space:]]$interface:[^[:space:]]*//g; \
s/^[[:space:]]*wins server[[:space:]]*=[[:space:]]*//pi" \
$SAMBA_DHCP_CONF`
serverlist="$other_servers"
fi
for server in $new_netbios_name_servers
do
serverlist="$serverlist $interface:$server"
done
echo -n > ${SAMBA_DHCP_CONF}.new
# If we're updating on failure/expire, AND there are no WINS
# servers for other interfaces, leave the file empty.
if [ -z "$other_servers" ]
then
if [ "$reason" = FAIL ] || [ "$reason" = EXPIRE ]
then
mv ${SAMBA_DHCP_CONF}.new $SAMBA_DHCP_CONF
return
fi
fi
if [ -n "$serverlist" ]
then
echo " wins server =$serverlist" >> ${SAMBA_DHCP_CONF}.new
fi
if [ -n "$new_netbios_scope" ]
then
echo " netbios scope = $new_netbios_scope" >> ${SAMBA_DHCP_CONF}.new
fi
mv ${SAMBA_DHCP_CONF}.new $SAMBA_DHCP_CONF
# reload the samba server
# We don't necessarily have the samba package installed. #414841
if [ -x /etc/init.d/smbd ]
then
if [ -d /run/systemd/system ]
then
if systemctl is-enabled smbd.service --quiet
then
systemctl try-reload-or-restart smbd.service
fi
else
/usr/sbin/invoke-rc.d smbd reload
fi
fi
}
netbios_setup