既做无线客户端又做无线ap、又可只存在一种模式

1、

1.1 打开 /barrier_breaker/package/base-files/files/etc/init.d

加入 disable_sta_mode_wifi_interfaces

#!/bin/sh /etc/rc.common 

START= # just before network start 

disable_sta_mode_wifi_interface() {
     local section="$1"
     config_get mode $section 'mode'
     config_get ssid $section 'ssid'
    config_get disabled $section 'disabled' #获取的是uci中的内容，如果uci中没有才获取配置文件
     if [ sta == $mode ] ; then
        if [  -eq $disabled ] || [ -z $disabled ] ; then #判断disabled是否为0或为空
            logger -s -t fqrouter disable sta mode wifi interface $ssid
            uci_set wireless $section disabled
        else
            subvar="no_need_sta"
            echo "$subvar" > /tmp/temp.txt  #不加目录不知存在什么地方
            logger -s -t fqrouter does not need to open sta mode
            exit
        fi
     fi
 } 

 start() {
     config_load 'wireless'
     config_foreach disable_sta_mode_wifi_interface 'wifi-iface'
     uci_commit
     logger -s -t fqrouter all sta mode wifi interfaces disabled
 }

注意：（1）、其中包含两个条件的判断语句要这样写

if [ 0 -eq $disabled ] || [ -z $disabled ] ; then

或

if [[ 0 -eq $disabled || -z $disabled ]] ; then

注意中括号要和里面的内容要有空格隔开。

（2）、赋值语句要这样写

subvar="no_need_sta"

等号两边不能有空格

1.2 设置权限为775

2、

2.1 打开 /barrier_breaker/package/base-files/files/etc/hotplug.d/net

加入00-only-enable-connectable-sta-mode-wifi-interface

if [ -f /tmp/skip-only-enable-connectable-sta-mode-wifi-interface ] ; then
     logger -s -t fqrouter skip-only-enable-connectable-sta-mode-wifi-interface found
     return
 fi  

 if [ "remove" == "$ACTION" -a "wlan0" == "$INTERFACE" ] ; then #先remove sta模式的wifi，会禁用上级wifi
     /etc/init.d/disable_sta_mode_wifi_interfaces start
 fi
 if [ "add" == "$ACTION" -a "wlan0" == "$INTERFACE" ] ; then #再搜索是否存在上级wifi，存在则添加
    read pvar < /tmp/temp.txt
     if [  "no_need_sta" == "$pvar" ] ; then
        logger -s -t fqrouter exit sta mode success
        rm /tmp/temp.txt
        exit
    else
        logger -s -t fqrouter try to bring up sta mode wifi interface # try to bring up sta mode wifi interface为打印出来的内容
        sta-mode-wifi-interface-up & #在后台运行
    fi
 fi

3.2 设置权限为664

3、

3.1 打开 barrier_breaker/package/base-files/files/sbin

加入 sta-mode-wifi-interface-up

#!/usr/bin/lua
require 'uci'
--require 'dumper'
require 'nixio'
x = uci.cursor() --move by tingpan
local pid_file = io.open('/tmp/sta-mode-wifi-interface-up.pid', 'r') --添加文件时，打开该文件
if pid_file ~= nil then  --如果存在
    local that_pid = pid_file:read('*a') --读取所有内容
    io.close(pid_file)  --关闭
    os.execute('logger -s -t fqrouter sta-mode-wifi-interface-up that pid is: ' .. that_pid)  --1有执行
    local cmdline_file = io.open('/proc/' .. that_pid .. '/cmdline', 'r') --打开
    if cmdline_file ~= nil then
        io.close(cmdline_file)
        os.execute('logger -s -t fqrouter sta-mode-wifi-interface-up found another instance ' .. that_pid)  --2有执行，下次会继续执行到该处
        x:set('wireless', 'cfg053579', 'disabled', ) --add by tingpan 恢复配置的初始值，为下次作准备。
        x:commit('wireless')
        os.exit()
    end
end
local this_pid = nixio.getpid() --获取pid
os.execute('echo -n ' .. this_pid .. ' > /tmp/sta-mode-wifi-interface-up.pid')
os.execute('logger -s -t fqrouter sta-mode-wifi-interface-up.pid: ' .. this_pid) 

--[[
--检查是否已经开启sta模式，在最开始时有作判断，此处注释
x = uci.cursor() --可放x:foreach前试试
function exit_if_sta_mode_wifi_interface_enabled(section) --怎么似乎执行不到该处
    if 'sta' == section.mode and '0' == section.disabled then --根据uci作判断，不按配置文件判断
        os.execute('logger -s -t fqrouter std mod wifi interface ' .. section.ssid .. ' already enabled') --当一开始时没有关闭sta模式的wifi，则执行
        os.exit()
    end
end
x:foreach('wireless', 'wifi-iface', exit_if_sta_mode_wifi_interface_enabled)
os.execute('logger -s -t fqrouter no sta mode wifi interface enabled') --3有执行
]]--
function is_interface_up(ifname) --接口名字
    local f = assert(io.popen('ifconfig '..ifname, 'r'))
    local output = assert(f:read('*a'))
    return output:find('RUNNING')
end
for count=, do
    if is_interface_up('wlan0') then
    break
    end
    os.execute('sleep 1')
end
if not is_interface_up('wlan0') then
    os.execute('logger -s -t fqrouter wlan0 not up in given time') --如果有配置上级wifi，而又不存在时，有用
    os.execute('wifi up') --add by tingpan 有用，如果按原来的话要再重启一次
    x:set('wireless', 'cfg053579', 'disabled', ) --add by tingpan 恢复配置的初始值，为下次作准备。
    x:commit('wireless')
    os.exit()
end
os.execute('logger -s -t fqrouter wlan0 is up') --4有执行，已经开启wifi了

local ssid_list = {}
local ssid_present = {}
for i = ,  do
    local iw = require'luci.sys'.wifi.getiwinfo('radio0')
    for k, v in ipairs(iw.scanlist or {}) do
        if v.ssid ~= nil and ssid_present[v.ssid] == nil then
            table.insert(ssid_list, v.ssid)
            ssid_present[v.ssid] = v
        end
    end
    os.execute('logger -s -t fqrouter "ssid list: ' .. table.concat(ssid_list, ', ') .. '"') --5、会列出搜到的所有信号
end
local no_sta_mode_wifi_interface_configured = true
function enable_sta_mode_wifi_interface(section)
    if 'sta' == section.mode then
    no_sta_mode_wifi_interface_configured = false
        if ssid_present[section.ssid] ~= nil then
        --if not (ssid_present[section.ssid] ~= nil) or '0' == section.disabled  then --同时满足两个条件要这样写
            os.execute('logger -s -t fqrouter found ' .. section.ssid)  --6、查找到想要的信号，之后继续执行脚本文件
            x:set('wireless', section['.name'], 'disabled', ) --会执行到该句子 section['.name'] 为cfg053579
            x:commit('wireless')
            os.execute('touch /tmp/skip-only-enable-connectable-sta-mode-wifi-interface')
            os.execute('wifi up') --相当于重启wifi
            os.execute('rm /tmp/skip-only-enable-connectable-sta-mode-wifi-interface')
            os.execute('sleep 10')
            if is_interface_up('wlan0-1') then
                os.execute('rm /tmp/upstream-status')
                else
                os.execute('echo "UPSTREAM_TIMEOUT" > /tmp/upstream-status')
                os.execute('logger -s -t fqrouter sta mode wifi interface not up in given time')
                x:set('wireless', section['.name'], 'disabled', ) --设置disabled为1
                x:commit('wireless')
                os.execute('touch /tmp/skip-only-enable-connectable-sta-mode-wifi-interface')
                os.execute('wifi down') --关闭wifi，ap和sta模式都关闭
                os.execute('wifi up')
                os.execute('rm /tmp/skip-only-enable-connectable-sta-mode-wifi-interface')
            end
            x:set('wireless', section['.name'], 'disabled', ) --add by tingpan 恢复配置的初始值，为下次作准备。
            x:commit('wireless')
            os.exit()
        end
    end
end
x = uci.cursor()
x:foreach('wireless', 'wifi-iface', enable_sta_mode_wifi_interface) --3、
if no_sta_mode_wifi_interface_configured then --如果没有设置sta模式
    os.execute('echo "UPSTREAM_NOT_CONFIGURED" > /tmp/upstream-status') --写入到该文件中
    os.execute('logger -s -t fqrouter no sta mode wifi interface configured') --在log文件中记录
    else --有设置却没搜到
    os.execute('echo "UPSTREAM_NOT_AVAILABLE" > /tmp/upstream-status')
    os.execute('logger -s -t fqrouter no sta mode wifi interface available')
    x:set('wireless', 'cfg053579', 'disabled', ) --add by tingpan 恢复配置的初始值，为下次作准备。
    x:commit('wireless')
end

3.2设置权限为775

相关资源：

http://pan.baidu.com/s/1bntXbd1