mirror of
https://git.kernel.org/pub/scm/network/wireless/iwd.git
synced 2024-12-31 15:32:37 +01:00
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/
246e76c7b0
With the goal of requesting the required passwords/passphrases, such as the TLS private key passphrase, from the agent, add a static method eap_check_settings to validate the settings and calculate what passwords are needed for those settings, if any. This is separate from eap_load_settings because that can only be called later, once we've got an eap state machine object. We need to get all the needed EAP credentials from the user before we even start connecting. While we do this, we also validate the settings and output any error messages through l_error (this could be changed so the messages go somewhere else in the future), so I removed the error messages from eap_load_settings and that method now assumes that eap_check_settings has been called before. eap_check_settings calls the appropriate method's .check_settings method if the settings are complete enough to contain the method name. The policy is that any data can be provided inside the l_settings object (from the network provisioning/config file), but some of the more sensitive fields, like private key passwords, can be optionally omitted and then the UI will ask for them and iwd will be careful with caching them. Within struct eap_secret_info, "id" is mainly for the EAP method to locate the info in the list. "value" is the actual value returned by agent. "parameter" is an optional string to be passed to the agent. For a private key passphrase it may be the path to the key file, for a password it may be the username for which the password is requested. |
||
|---|---|---|
| autotests | ||
| client | ||
| doc | ||
| linux | ||
| monitor | ||
| plugins | ||
| src | ||
| test | ||
| tools | ||
| unit | ||
| .gitignore | ||
| acinclude.m4 | ||
| AUTHORS | ||
| bootstrap | ||
| bootstrap-configure | ||
| ChangeLog | ||
| configure.ac | ||
| COPYING | ||
| HACKING | ||
| INSTALL | ||
| Makefile.am | ||
| README | ||
| TODO | ||
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