安装

安装net-wireless/wpa_supplicant包

emerge --ask wpa_supplicant

配置

Set for Gentoo net.* scrips，tell the network script to use wpa_supplicant.
File/etc/conf.d/net

modules_wlan0="wpa_supplicant"
# 因为wpa_supplicant还不能很好的自动侦测驱动，所以需要我们为其指定正在使用的驱动。
wpa_supplicant_wlan0="-Dnl80211"
config_wlan0="dhcp"

/etc/wpa_supplicant/wpa_supplicant.conf

# Allow users in the ‘wheel‘ group to control wpa_supplicant
ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=wheel
# Make this file writable for wpa_gui
update_config=1
#自动扫描AP（也就是可以上的无线网络热点）
ap_scan=1   
# 简单的情形：WPA-PSk密码验证方式，PSK是ASCII密码短语，所有合法的加密方式都允许连接
network={
  ssid="simple"
  psk="very secret passphrase"
  # 优先级越高，就能越早匹配到。
  priority=5
}

也可以使用wpa_passphrase命令添加无线热点

wpa_passphrase [ ssid ] [ passphrase ] >> /etc/wpa_supplicant/wpa_supplicant.conf

上面这条命令可以自动生成一段配置，我们将它输出添加到 wpa_supplicant 的默认配置文件里面。

启动网络

初始化wpa_supplicant环境

wpa_supplicant -Dwext -iwlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf

参数：

-B - Fork into background.
-c filename - Path to configuration file.
-i interface - Interface to listen on.
-D driver - Optionally specify the driver to be used. For a list of supported drivers see the output of wpa_supplicant -h.
    nl80211 is the current standard, but not all wireless chip‘s modules support it.
    wext is currently deprecated, but still widely supported.

设置、获取IP

自动获取

dhcpcd wlan0

手动设置

ifconfig wlan0 192.168.1.11 broadcast 192.168.1.255 netmask 255.255.255.0

告知Gentoo RC系统网卡名字

cd /etc/init.d
ln -s net.lo net.wlan0
#start and stop it using the following commands:
/etc/init.d/net.eth0 start
/etc/init.d/net.eth0 stop
#开机启动
rc-update add wlan0 default

wpa_cli

wpa_cli
> scan
> scan_results
> add_network
0
> set_network 0 ssid "MYSSID"
> set_network 0 psk "passphrase"
> enable_network 0
> save_config
OK
dhcpcd interface