uci-defaults script for OpenWrt that configures Wi-Fi

99-wifi.sh

#!/bin/sh

WIFI_PASSWORD_FILE="/lib/rezine/wifi"

# If no password is provided in the image, exit and remove this script
wifi_password="$(cat $WIFI_PASSWORD_FILE)" || exit 0

for radio in 'radio0' 'radio1'
do
    # Radio doesn't exist.
    uci -q get wireless."$radio" || continue

    # SSID is different from the OpenWrt default!
    #
    # This happens during upgrade in two cases:
    # 1) if the user had previously customized the SSID;
    # 2) if the user was already using our custom image with SSID
    #    "rezine.org".  He/she may have changed the password and channel,
    #    and we have no way to check that.
    #
    # In both cases, we don't want to touch anything.
    ssid="$(uci -q get wireless.default_${radio}.ssid)"
    [ "$ssid" != "OpenWrt" ] && continue

    # Set fixed channel
    hwmode=$(uci -q get wireless."$radio".hwmode)
    [ "$hwmode" = "11g" ] && channel=6
    [ "$hwmode" = "11a" ] && channel=36
    [ -n "$channel" ] && uci set wireless."$radio".channel="$channel"

    # Set country
    uci set wireless."$radio".country="FR"

    # Enable radio
    uci set wireless."$radio".disabled="0"

    # Set SSID and password
    uci set wireless.default_"$radio".ssid="rezine.org"
    uci set wireless.default_"$radio".encryption="psk-mixed"
    uci set wireless.default_"$radio".key="$wifi_password"

    uci -q commit wireless
done

rm -f "$WIFI_PASSWORD_FILE"

exit 0