Connection Manager
******************

Copyright (C) 2007-2012  Intel Corporation. All rights reserved.


Functionality and features
==========================

The following features are built-in into Connection Manager:
	- Generic plugin infrastructure
	- Device and network abstraction (with basic storage support)
	- IPv4, IPv4-LL (link-local) and DHCP
	- IPv6, DHCPv6 and 6to4 tunnels
	- Advanced routing and DNS configuration
	- Built-in DNS proxy and intelligent caching
	- Built-in WISPr hotspot logins and portal detection
	- Time and timezone configuration (manual and automatic with NTP)
	- Proxy handling (manual and automatic with WPAD)
	- Tethering support (USB, Bluetooth and WiFi AP mode)
	- Detailed statistics handling (home and roaming)

Various plugins can be enabled for networking support:
	- Ethernet plugin
	- WiFi plugin with WEP40/WEP128 and WPA/WPA2 (personal and enterprise)
	- Bluetooth plugin (using BlueZ)
	- 2G/3G/4G plugin (using oFono)

Also plugins with additional features are available:
	- Loopback interface setup
	- PACrunner proxy handling
	- PolicyKit authorization support


Compilation and installation
============================

In order to compile Connection Manager you need following software packages:
	- GCC compiler
	- GLib library
	- D-Bus library
	- GnuTLS library
	- IP-Tables library
	- PolicyKit (optional)

To configure run:
	./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var

Configure automatically searches for all required components and packages.

To compile and install run:
	make && make install


Configuration and options
=========================

For a working system, certain configuration options need to be enabled:

	--disable-ethernet

		Disable support for Ethernet network cards

		By default Ethernet technology support is built-in and
		enabled. This option can be used to build a small daemon
		for a specific system if Ethernet support is not required.

	--disable-wifi

		Disable support for WiFi devices

		By default WiFi technology support is built-in and
		enabled. This option can be used to build a small daemon
		for a specific system if WiFi support is not required.

		It is safe to build a daemon with WiFi support and no
		running wpa_supplicant. The start of wpa_supplicant is
		automatically detected and only a runtime dependency. It
		is not needed to build ConnMan.

	--disable-bluetooth

		Disable support for Bluetooth devices

		By default Bluetooth technology support is built-in and
		enabled. This option can be used to build a small daemon
		for a specific system if Bluetooth support is not required.

		It is safe to build a daemon with Bluetooth support and no
		running bluetoothd. The start of bluetoothd is automatically
		detected and only a runtime depedency. It is not needed to
		build ConnMan.

	--disable-ofono

		Disable support for cellular 2G/3G/4G devices

		By default oFono technology support is built-in and
		enabled. This option can be used to build a small daemon
		for a specific system where oFono is not used.

		It is safe to build a daemon with oFono support and no
		running ofonod. That start of ofonod is automatically
		detected and only a runtime dependecy. It is not needed	to
		build ConnMan.

	--disable-pacrunner

		Disable support for PACrunner proxy handling

		By default PACrunner support is built-in and enabled. This
		option can be used to build a small daemon for a specific
		system where PACrunner is not used.

		It is safe to build a daemon with PACrunner support and no
		pacrunner daemon. It will detect and start a PACrunner
		process if needed at runtime. The presence is not needed
		to build ConnMan.

	--disable-loopback

		Disable setup of loopback device

		For distributions with a really minimal init system and no
		networking scripts this can take care of setting up the
		loopback device and enabling it.

		It is safe to leave this selected even if networking
		scripts are in place. It detects an already configured
		loopback device and leaves it as it is.

	--enable-polkit

		Enable support for PolicyKit authorization

		This allows to check every D-Bus access against a security
		policy and so restrict access to certain functionality.

	--enable-nmcompat

		Enable support for NetworkManager compatibility interfaces

		This allows to expose a minimal set of NetworkManager
		interfaces. It is useful for systems with applications
		written to use NetworkManager to detect online/offline
		status and have not yet been converted to use ConnMan.


wpa_supplicant configuration
============================

In order to get wpa_supplicant and Connection Manager working properly
together you should edit wpa_supplicant .config file and set:

CONFIG_WPS=y
CONFIG_AP=y
CONFIG_CTRL_IFACE_DBUS_NEW=y

and, add:

CONFIG_BGSCAN_SIMPLE=y

This last option will enable the support of background scanning while being
connected, which is necessary when roaming on wifi.

It is recommended to use wpa_supplicant 0.8.x or 1.x or later.


VPN
===

In order to compile pptp and l2tp VPN plugins, you need ppp development
package.

To run l2tp you will need
	- xl2tpd, http://www.xelerance.com/services/software/xl2tpd

To run pptp you will need
	- pptp client, http://pptpclient.sourceforge.net

Both l2tp and pptp also need pppd.


OpenVPN
=======

Up to version 2.2 of OpenVPN, pushing additional routes from the
server will not always work. Some of the symptons are that additional
routes will not be set by ConnMan if the uplink is a cellular
network. While the same setup works well for a WiFi or ethernet
uplink.