#!/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

 }

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

#!/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