wpa_supplicant
WPA_supplicant
- How to setup multiple WiFi networks?
- WPA_supplicant
- man wpa_supplicant
- man wpa_supplicant.conf
- man iwconfig
- man iwlist
- ifupdown-ng
- /etc/init.d/wpa_supplicant
- /sbin/wpa_supplicant
- /etc/init.d/wpa_cli
- /sbin/wpa_cli
- 参考
sudo apk add wireless-tools
# 启用网卡
ifconfig wlan0 up
# 扫描热点
iwlist scan
# 生成配置文件 wpa.conf
wpa_passphrase 热点名字 密码 > wpa.conf
# 可添加多个配置
wpa_passphrase 热点名字 密码 >> wpa.conf
# 将配置放到服务配置下
mkdir -p /etc/wpa_supplicant
chmod 750 /etc/wpa_supplicant
cp wpa.conf /etc/wpa_supplicant/wpa_supplicant.conf
# 启动 wpa 服务
rc-service wpa_supplicant start
# 开机启动
rc-update add wpa_supplicant boot
# 修改网络配置, 添加 wlan0
# auto wlan0
# iface wlan0 inet dhcp
nano /etc/network/interface
wpa_cli -i wlan0 reconfigure
# 调试
# ===============
# 在前台运行以便调试
wpa_supplicant -Dwext -iwlan0 -c wpa.conf
# busybox 自带了 udhcpc
udhcpc -fqi wlan0
| driver | description |
|---|---|
| nl80211 | modern Linux nl80211/cfg80211 netlink-based interface |
| wext | legacy Linux ioctl-based interface (older hardware/drivers). |
| wired | wpa_supplicant wired Ethernet driver. |
| macsec_linux | MACsec Ethernet driver for Linux. |
| roboswitch | wpa_supplicant Broadcom switch driver. |
| none | No driver (RADIUS server / WPS ER only). |
| bsd | BSD 802.11 support (Atheros, etc.). |
| ndis | Windows NDIS driver. |
wpa_cli
wpa_supplicant.conf
- /etc/wpa_supplicant/wpa_supplicant.conf
ctrl_interface=/run/wpa_supplicant
update_config=1
network={
ssid="SSID"
psk="PSK"
priority=10
}
chmod 600 /etc/wpa_supplicant/wpa_supplicant.conf
- ssid
- 含义：目标无线网络名称（SSID）。
- 格式：字符串；若含空格或特殊字符请用双引号（例如："My WiFi"）；大小写敏感。
- psk
- 含义：WPA/WPA2 预共享密钥（密码）。
- 格式：明文密码 8–63 字符（需双引号）或 64 位十六进制哈希（不加引号）。
- priority
- 含义：网络优先级，值越大优先连接。
- 格式：整数（正负均可），默认通常为 0。
- https://gist.github.com/penguinpowernz/ce4ed0e64ce0fa99a5e335c1a4c954b3
FAQ
Failed to connect to non-global ctrl_ifname: (nil) error: No error information
- 注意配置 ctrl_interface=/run/wpa_supplicant
wpa_cli -i wlan0 reconfigure
Failed to connect to non-global ctrl_ifname: wlan0 error: No such file or directory