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The iNet Wireless Daemon (iwd) project aims to provide a comprehensive Wi-Fi connectivity solution for Linux based devices. The core goal of the project is to optimize resource utilization: storage, runtime memory and link-time costs. https://iwd.wiki.kernel.org/
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Tim Kourt 27e305c9d2 device: change scan command logic
This patch allows alternating between the passive and active
scans taking into consideration an existence of the known
hidden networks and previous observation of them in the scan
results, as well as an ability to randomize the MAC address.
2018-06-28 15:44:57 -05:00
autotests auto-t: added failure test case to AP 2018-06-27 14:41:25 -05:00
client client: add support for WDS Device property 2018-06-13 21:20:44 -05:00
doc doc: add WDS property to Device interface 2018-06-13 11:41:59 -05:00
linux nl80211: Update to the latest header 2018-04-04 09:38:46 -05:00
monitor monitor: move inclusion of linux headers after libc ones 2018-05-17 17:34:08 -05:00
plugins plugins: Remove unneeded headers 2018-06-14 19:58:04 -05:00
src device: change scan command logic 2018-06-28 15:44:57 -05:00
test test: add get-wds script 2018-06-13 11:44:24 -05:00
tools tools: Remove unused kernel config 2018-06-19 16:06:08 -05:00
unit unit: Print tls_alert 2018-06-28 13:23:29 -05:00
.gitignore unit: Add ECC math sanity tests 2018-05-03 10:48:46 -05:00
acinclude.m4 autotools: Only use -Wcast-align with gcc 2016-12-19 11:02:50 -06:00
AUTHORS AUTHORS: Mention Antonio's contributions 2018-06-13 08:31:47 -05:00
bootstrap build: Add support for internal ELL compilation 2014-05-11 11:01:11 -07:00
bootstrap-configure build: Install D-Bus policy file even on development builds 2018-02-10 18:47:37 +01:00
ChangeLog Release 0.3 2018-06-15 11:02:16 +02:00
configure.ac Release 0.3 2018-06-15 11:02:16 +02:00
COPYING build: Add COPYING and INSTALL template files 2014-05-22 10:09:24 -07:00
HACKING HACKING: Add Submitting Patches section 2015-01-22 08:53:10 -06:00
INSTALL build: Add COPYING and INSTALL template files 2014-05-22 10:09:24 -07:00
Makefile.am build: Add util.c to test-eapol 2018-06-22 14:40:46 -05:00
README README: Fix typo 2017-03-21 15:42:30 -05:00
TODO TODO: add task for test-runner 2018-05-21 19:33:46 -05:00

Wireless daemon for Linux
*************************

Copyright (C) 2013-2014  Intel Corporation. All rights reserved.


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

In order to compile the source code you need following software packages:
	- GCC compiler
	- GNU C library
	- Embedded Linux library

To configure run:
	./configure --prefix=/usr

Configure automatically searches for all required components and packages.

To compile and install run:
	make && make install


Embedded Linux library
======================

In order to compile the daemon and control utility the development version
of Embedded Linux library is required to be present. The development
repositories can be found here:

	git://git.kernel.org/pub/scm/libs/ell/ell.git
	https://kernel.googlesource.com/pub/scm/libs/ell/ell.git

The build systems requires that the Embedded Linux library source code
is available on the same top level directory as the Wireless daemon
source code:

	.
	|--- ell
	|    |--- ell
	|    `--- unit
	`--- iwd
	     |--- src
	     `--- client

It is not required to build or install Embedded Linux library. The build
will happen when building the Wireless daemon and it will then be linked
internally.


Netlink monitoring
==================

The included iwmon utility can be used to monitor the 802.11 subsystem
generic netlink commands and events. It uses the nlmon kernel driver
from Linux 3.10 and later. On startup network monitor interface named
named 'nlmon' is created unless another interface name is given on the
command line. If the monitor interface was created by the iwmon utility,
it will be removed on program exit.

Manually the monitor interface can be created using the following
commands:

	ip link add name nlmon type nlmon
	ip link set dev nlmon allmulticast on
	ip link set dev nlmon up

It is possible to create netlink traces in PCAP format using tcpdump
and then read them via iwmon utility:

	tcpdump -i nlmon -w trace-file.pcap

The resulting PCAP files will use Linux cooked packet format containing
packets with ARPHRD_NETLINK type. They can be read using iwmon:

	iwmon -r trace-file.pcap

At this time iwmon is not able to write PCAP files by itself. This might
change in future versions.

When also the authentication protocol traffic on port 0x888e (ETH_P_PAE)
is needed, then a second capture is required:

	tcpdump -i any 'ether proto 0x888e' -w trace-pae.pcap

It is possible to combine these two PCAP files using the mergecap utility
and create a combined trace file:

	mergecap -F pcap -w trace.pcap trace-file.pcap trace-pae.pcap

This will create a trace.pcap file that includes the complete picture
of nl80211 netlink traffic and authentication messages. All packets are
merged in chronological order based on timestamps.

Unfortunately it is not possible to instruct tcpdump filtering to do
this in a single capture. Post-processing of the PCAP files is required
at the moment.


Simulating devices
==================

The Linux driver mac80211_hwsim provides the functionality to simulate
Wireless devices using fake virtual air. Just load the module.

	modprobe mac80211_hwsim radios=0

Providing the radios=0 is important since otherwise it starts out with
two new Wireless radios by default.

With the provided hwsim utility it is now possible to add and remove
virtual radio devices.

	hwsim --create --keep
	hwsim --destroy=<radio-id>

The radio id assigned to each virtual device is its internal id used
by the Wireless device.


Information
===========

Mailing list:
	https://lists.01.org/mailman/listinfo/iwd

IRC:
	irc://irc.freenode.net/#iwd