edl_main

#!/usr/bin/python

#EcoDroidLink/ykasidit@gmail.com - edl_main - calls the mainloop of edl_utll which does: startup, prepares bt dongle, auto pairs, auto accept bt nap connections and periodic checks for running for Bluetooth Network Access Point

__author__ = "Kasidit Yusuf"
__copyright__ = "EcoDroidLink Copyright (c) 2013 Kasidit Yusuf"
__credits__ = ["Kasidit Yusuf"]
__license__ = "GPL"
__version__ = "1.1.0"
__maintainer__ = "Kasidit Yusuf"
__email__ = "ykasidit@gmail.com"
__status__ = "Production"

#header format from http://stackoverflow.com/questions/1523427/python-what-is-the-common-header-format

import edl_util
from edl_util import printlog
import singleton
from optparse import OptionParser, make_option

#http://stackoverflow.com/questions/380870/python-single-instance-of-program
me = singleton.SingleInstance() # will sys.exit(-1) if other instance is running

usage = """EcoDroidLink v1.20 - BlueZ Bluetooth Network Access Point Automation
Please see README.markdown (at https://github.com/ykasidit/ecodroidlink) for full purpose, setup and usage.

Usage:

- [Default]: By default, edl_main would try to create a DHCP bridge over eth0, then use that bridge to share the internet to bluetooth clients. So just run:
sudo ./edl_main

However, if your main dhcp internet source is not eth0 (For example 'usb0' for usb-tethering internet sources) - you can specify it like below example for usb0 :
sudo ./edl_main --interface usb0

- [Recommended]: Please manually create a 'bridge' (in /etc/network/interfaces - you can fully customize the bridge as you like - static ip, etc) containing your desired interface (like 'eth0'). Make sure the same interface is not set out of the bridge. Restart your computer, make sure internet works, then specify the bridge's name (like 'br0') - for example:
sudo ./edl_main --use_existing_bridge br0
"""

use_existing_bridge = None
#if use_existing_bridge was not specified in option then create our own dhcp bridge, over eth0 by default
src_interface = "eth0"

##### override this like 'sudo ./edl_main --interface eth1' (for usb tethering sources it would be usb0)

option_list = [
		make_option("--interface", action="store",
				type="string", dest="interface"),
		make_option("--use_existing_bridge", action="store",
				type="string", dest="existing_bridge")		
		]

parser = OptionParser(usage=usage,option_list=option_list)

(options, args) = parser.parse_args()

if (options.existing_bridge is not None):
    use_existing_bridge = options.existing_bridge
    printlog("edl: using existing bridge: "+use_existing_bridge)
else:
    use_existing_bridge = None
    if (options.interface is not None):
        printlog("edl: auto-create bridge (dhcp) over network interface "+options.interface)
        src_interface = options.interface
    else:
        printlog("edl: auto-create bridge (dhcp) over default interface eth0 - you can customize like 'sudo ./edl_main --interface eth1' or usb0 or whatever is your internet souce. NOTE: It is recommended to create your own bridge in /etc/network/interfaces and specify like 'sudo ./edl_main --use_existing_bridge br0' for real deployment in auto-start-on-boot mode. Please see README.markdown for full info.")

edl_util.main_loop(use_existing_bridge,src_interface)