set_rf_state() {
    local INTERFACE="$1" state="$2" RFKILL_NAME="$3"

    if [[ "$RFKILL" == "hard" ]]; then
        report_fail "Cannot set state on hardware rfkill switch"
        return 1
    fi
    local path=$(get_rf_path "$INTERFACE" "$RFKILL_NAME") || return 1
    case "$state" in
        enabled)
            echo 1 > "$path/state"
        ;;
        disabled)
            echo 0 > "$path/state"
        ;;
    esac
}

get_rf_path() {
    local INTERFACE="$1" RFKILL_NAME="$2" path

    if [[ -n "$RFKILL_NAME" ]]; then
        for path in /sys/class/rfkill/*; do
            if [[ "$(< "$path/name")" == "$RFKILL_NAME" ]]; then
                echo "$path"
                return 0
            fi
        done
        report_fail "no rfkill switch with name $RFKILL_NAME"
    else
        path="/sys/class/net/$INTERFACE/rfkill"
        if [[ -d "$path" ]]; then
            echo "$path"
            return 0
        fi
        report_fail "no rfkill switch available on interface $INTERFACE"
    fi
    return 1
}

get_rf_state() {
    local INTERFACE="$1" PROFILE="$2" path state

    path=$(get_rf_path "$INTERFACE" "$RFKILL_NAME") || return 1
    read state < "$path/state"

    case "$state" in
        0|2)
            echo "disabled";;
        1)
            echo "enabled";;
        *)
            echo "$state";;
    esac
}

enable_rf() {
    local INTERFACE="$1" RFKILL="$2" RFKILL_NAME="$3"
    # Enable rfkill if necessary, or fail if it is hardware
    if [[ -n "$RFKILL" ]]; then
        local state=$(get_rf_state "$INTERFACE") || return 1
        if [[ "$state" != "enabled" ]]; then
            if [[ "$RFKILL" == "soft" ]]; then
                set_rf_state "$INTERFACE" enabled $RFKILL_NAME
                sleep 1
            else
                report_fail "radio is disabled on $INTERFACE"
                return 1
            fi
        fi
    fi
}

# vim: ft=sh ts=4 et sw=4: