Installation of WPA Supplicant
First you will need to create an initial configuration file for the
build process. You can read wpa_supplicant/README and wpa_supplicant/defconfig for the explanation of
the following options as well as other options that can be used.
Create a build configuration file that should work for standard
WiFi setups by running the following command:
cat > wpa_supplicant/.config << "EOF"
CONFIG_BACKEND=file
CONFIG_CTRL_IFACE=y
CONFIG_DEBUG_FILE=y
CONFIG_DEBUG_SYSLOG=y
CONFIG_DEBUG_SYSLOG_FACILITY=LOG_DAEMON
CONFIG_DRIVER_NL80211=y
CONFIG_DRIVER_WEXT=y
CONFIG_DRIVER_WIRED=y
CONFIG_EAP_GTC=y
CONFIG_EAP_LEAP=y
CONFIG_EAP_MD5=y
CONFIG_EAP_MSCHAPV2=y
CONFIG_EAP_OTP=y
CONFIG_EAP_PEAP=y
CONFIG_EAP_TLS=y
CONFIG_EAP_TTLS=y
CONFIG_IEEE8021X_EAPOL=y
CONFIG_IPV6=y
CONFIG_LIBNL32=y
CONFIG_PEERKEY=y
CONFIG_PKCS12=y
CONFIG_READLINE=y
CONFIG_SMARTCARD=y
CONFIG_WPS=y
CFLAGS += -I/usr/include/libnl3
EOF
If you wish to use WPA Supplicant
with NetworkManager-0.9.10.0, add the
required options to the WPA
Supplicant build configuration file by running the following
command:
cat >> wpa_supplicant/.config << "EOF"
CONFIG_CTRL_IFACE_DBUS=y
CONFIG_CTRL_IFACE_DBUS_NEW=y
CONFIG_CTRL_IFACE_DBUS_INTRO=y
EOF
First, fix expand the list of parameters that are passed to the
wpa_supplicant when
started as a D-Bus service:
sed -e "s@wpa_supplicant -u@& -s -O /var/run/wpa_supplicant@g" -i wpa_supplicant/dbus/*.service.in &&
sed -e "s@wpa_supplicant -u@& -s -O /var/run/wpa_supplicant@g" -i wpa_supplicant/systemd/wpa_supplicant.service.in
Install WPA Supplicant by running
the following commands:
cd wpa_supplicant &&
make BINDIR=/sbin LIBDIR=/lib
If you have installed Qt-4.8.6 and wish to build the WPA Supplicant GUI program, run the following
commands:
pushd wpa_gui-qt4 &&
qmake-qt4 wpa_gui.pro &&
make &&
popd
This package does not come with a test suite.
Now, as the root user:
install -v -m755 wpa_{cli,passphrase,supplicant} /sbin/ &&
install -v -m644 doc/docbook/wpa_supplicant.conf.5 /usr/share/man/man5/ &&
install -v -m644 doc/docbook/wpa_{cli,passphrase,supplicant}.8 /usr/share/man/man8/
Install the systemd support files
by running the following command as the root user:
install -v -m644 systemd/*.service /lib/systemd/system/
If you have built WPA Supplicant
with D-Bus support, you will need
to install D-Bus configuration
files. Install them by running the following commands as the
root user:
install -v -m644 dbus/fi.{epitest.hostap.WPASupplicant,w1.wpa_supplicant1}.service \
/usr/share/dbus-1/system-services/ &&
install -v -m644 dbus/dbus-wpa_supplicant.conf \
/etc/dbus-1/system.d/wpa_supplicant.conf
Additionally, enable the wpa_supplicant.service so that systemd can properly activate the D-Bus service. Run the following command as
the root user:
systemctl enable wpa_supplicant
If you have built the WPA
Supplicant GUI program, install it by running the following
commands as the root user:
install -v -m755 wpa_gui-qt4/wpa_gui /usr/bin/ &&
install -v -m644 doc/docbook/wpa_gui.8 /usr/share/man/man8/ &&
install -v -m644 wpa_gui-qt4/wpa_gui.desktop /usr/share/applications/ &&
install -v -m644 wpa_gui-qt4/icons/wpa_gui.svg /usr/share/pixmaps/
![[Note]](../images/note.png)
Note
You will need to restart the system D-Bus daemon before you can use the
WPA Supplicant D-Bus interface.
Note
This package installs desktop files into the /usr/share/applications hierarchy and you can
improve system performance and memory usage by updating
/usr/share/applications/mimeinfo.cache. To
perform the update you must have desktop-file-utils-0.22 installed
and issue the following command as the root user:
update-desktop-database
Configuring wpa_supplicant
Config File
/etc/wpa_supplicant/wpa_supplicant-*.conf
Configuration Information
![[Warning]](../images/warning.png)
Warning
You need to replace wlan0 with the correct wireless
interface name in the commands below.
To connect to an access point that uses a password, you need to
put the pre-shared key in /etc/wpa_supplicant/wpa_supplicant-wlan0.conf. SSID is the
string that the access point/router transmits to identify itself.
Run the following command as the root user:
install -v -dm755 /etc/wpa_supplicant &&
wpa_passphrase SSID SECRET_PASSWORD > /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
/etc/wpa_supplicant/wpa_supplicant-wlan0.conf can hold the
details of several access points. When wpa_supplicant is started, it
will scan for the SSIDs it can see and choose the appropriate
password to connect.
If you want to connect to an access point that isn't password
protected, put an entry like this in /etc/wpa_supplicant/wpa_supplicant-wlan0.conf. Replace
"Some-SSID" with the SSID of the access point/router.
network={
ssid="Some-SSID"
key_mgmt=NONE
}
There are many options that you could use to tweak how you
connect to each access point. They are described in some detail
in the wpa_supplicant/wpa_supplicant.conf file in the
source tree.
Connecting to an Access Point
There are 3 types of systemd
units that were installed:
The only difference between 3 of them is what driver is used for
connecting (-D option). The first one uses the default driver,
the second one uses the nl80211 driver and the third one uses the
wired driver.
You can connect to the wireless access point by running the
following command as the root
user:
systemctl start wpa_supplicant@wlan0
To connect to the wireless access point at boot, simply enable
the appropriate wpa_supplicant service by
running the following command as the root user:
systemctl enable wpa_supplicant@wlan0
Depending on your setup, you can replace the [email protected] with any other listed
above.
To assign a network address to your wireless interface, consult
the General
Network Configuration page in LFS.