#!/bin/sh
#
# /etc/network/if-pre-up.d/pan
# /etc/network/if-post-down.d/pan
#
# Stefan Tomanek <stefan.tomanek@wertarbyte.de>
# http://wertarbyte.de/debian/
#
# This script is an addition to ifupdown and establishes
# a bluetooth PAN connection while configuring the network
#
# Place this file in /etc/network/if-pre-up.d/ and create a
# symlink to /etc/network/if-post-down.d/
# 
# Afterwards, a PAN profile can be configured like this:
#
# iface bnep0 inet dhcp
#   # your cell phone address
#   pan_address 00:DE:AD:BE:EF

HCITOOL=/usr/bin/hcitool
PAND=/usr/bin/pand

if [ ! -x $HCITOOL ] || [ ! -x $PAND ]; then
  exit 0
fi

if [ -n "$IF_PAN_ADDRESS" ]; then
  if [ "$MODE" = "start" ]; then
	$HCITOOL cc "$IF_PAN_ADDRESS" && \
	$HCITOOL enc "$IF_PAN_ADDRESS" && \
	$PAND -n -c "$IF_PAN_ADDRESS"
  else
	$PAND -k "$IF_PAN_ADDRESS"
	$HCITOOL dc "$IF_PAN_ADDRESS"
  fi
fi