EAVCapture项目中的开机自动升级脚本

#!/bin/bash

#brief:to solve match correct event node when EAVCapture starts.
#date:September 17,2015.
#author:zhangshaoyan,[e-mail]

#This script is used to execute autoupdate task for EAVCapture Project.
#Ftp server should be setup correctly before running.
#BabyFTPServer is recommended,only anonymous user is supported.
#
#Compress all project related files with tar.bz2 and generate md5 file with md5sum command.
#Put these two files in ftp root directory as follows:
#
#     EAVCapture_Remote.tar.bz2
#     EAVCapture_Remote.md5
#
#The content of md5 file is as follows:
#d404401c8c6495b206fc35c95e55a6d5  EAVCapture_Remote.tar.bz2
#(You can generate it easily with command 'md5sum EAVCapture_Remote.tar.bz2 >> EAVCapture_Remote.md5').
#
#

#author:zhangshaoyan
#date:January 14,2016.
####user defined parameters########################
#NIC=wlp8s0
#NIC=enp7s0
NIC=wlan0
###################################################
AppName=EAVCapture
FTPUSER=root
FTPPASS=root
FTPPort=2222
EAVUpate=/dev/tcp/127.0.0.1/7777
####################################################
EAVHOME=/home/bioequ/EAVCapture
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$EAVHOME/lib
export PATH=$PATH:$EAVHOME/bin
####################################################
function sendMsg
{
  echo "msg:" $1 > $EAVUpate
  usleep 200000
}
function sendErr
{
  echo "err:" $1 > $EAVUpate
  usleep 200000
}
function startEAVCaptureAndExit
{
  if [ ! -f EAVCapture.bin ];then
    sendErr "找不到主程序文件EAVCapture.bin!"
    exit -1
  fi
 
  echo "shu:Shutdown" > $EAVUpate
  usleep 500000
 
  #qt's start command line parameters.
  mouseplug=
  kbdplug=
  allplug="-platform linuxfb"

  #scan /dev/input directory to get valid event that supports EV_REL.
  ./evtest.bin 0 > mouse_event.log
  mouse_event_cnt=$?

  #scan /dev/input diretory to get valid event that supports EV_KEY.
  ./evtest.bin 1 > kbd_event.log
  kbd_event_cnt=$?

  #generate the final one-line start parameter.
  if [ $mouse_event_cnt -gt 0 ];then
    while read line
    do
        mouseplug="$mouseplug -plugin evdevmouse:$line"
    done < mouse_event.log
  fi

  if [ $kbd_event_cnt -gt 0 ];then
    while read line
    do
        kbdplug="$kbdplug -plugin evdevkeyboard:$line"
    done < kbd_event.log
  fi

  allplug="$allplug $mouseplug $kbdplug"
  echo $allplug

  #start main app.
  ./EAVCapture.bin $allplug &
 
  exit 0
}

#start EAVUpdate app.
mkdir -p /home/bioequ/tmpfs
mount -t tmpfs tmpfs /home/bioequ/tmpfs
pwd
if [ ! -f EAVUpate.bin ];then
  echo "can't find EAVUpate.bin!"
  exit -1
fi
./EAVUpdate.bin -platform linuxfb &
sleep 1

#disable printk output.
sendMsg "禁止内核调试信息"
echo "1 4 1 7" > /proc/sys/kernel/printk

#change root password.
#echo -e "bjbioequ\nbjbioequ\n" | passwd root

#install driver module.
cd driver
sendMsg "正在加载按键驱动..."
insmod imx6_key_drv.ko
usleep 500000
sendMsg "正在加载无线网卡驱动..."
insmod rtl8188.ko
sleep 1
cd ..

sleep 2

#start dropbear ssh service.
if [ ! -f "/etc/dropbear/dropbear_rsa_host_key" ];then
    sendMsg "正在生成SSH密钥..."
    dropbearkey -t rsa -f /etc/dropbear/dropbear_rsa_host_key
fi
sendMsg "正在启动SSH服务..."
dropbear -r /etc/dropbear/dropbear_rsa_host_key &

#start wifi-daemon.
sendMsg "正在启动WiFi管理器..."
wpa_supplicant -i ${NIC} -c /etc/wpa_supplicant/wpa_supplicant.conf -B
sleep 1
sendMsg "正在获取IP地址..."
udhcpc -i ${NIC} -t 3 -n
if [ $? -ne 0 ];then
sendMsg "获取IP地址失败"
fi

########################################################
#execute update task.
LocalAppFile=${AppName}_Local.tar.bz2
LocalMD5File=${AppName}_Local.md5
#remote file.
RemoteAppFile=${AppName}_Remote.tar.bz2
RemoteMD5File=${AppName}_Remote.md5

#check local md5 file.
if [ ! -f $LocalMD5File ];then
    sendErr "找不到本地MD5文件!"
    startEAVCaptureAndExit
fi

#get local network interface broadcast address.
sendMsg "正在计算广播地址"
Broadcast=$(/sbin/ifconfig ${NIC} | awk -F : '/Bcast/{print $3}' | awk '{print $1}')
if [ "$Broadcast" = "" ];then
  sendErr "找不到广播地址!"
  startEAVCaptureAndExit
fi
sendMsg "广播地址:${Broadcast}"

#try to detect server.
sendMsg "正在搜索升级服务器..."
ServerIP=$(./zserverfind.bin -i ${Broadcast} -p 6688 -t 10)
if [ $? -ne 0 ];then
  sendErr "找不到升级服务器!"
  startEAVCaptureAndExit
fi
sendMsg "搜索到服务器：$ServerIP"

#download md5 file from server.
sendMsg "正在下载MD5文件..."
ftp -n <<EOF
open $ServerIP $FTPPort
user $FTPUSER $FTPPASS
binary
get $RemoteMD5File
close
bye
EOF

#check download success or not.
if [ ! -f $RemoteMD5File ];then
    sendErr "下载 $RemoteMD5File 失败!"
    startEAVCaptureAndExit
fi

#extract two md5 values.
LocalMD5Value=$(cat $LocalMD5File | awk '{print $1}')
RemoteMD5Value=$(cat $RemoteMD5File | awk '{print $1}')
echo "LocalMD5:" $LocalMD5Value
echo "RemoteMD5:" $RemoteMD5Value

#compare two md5 values.
if [ ${LocalMD5Value} = ${RemoteMD5Value} ];then
    sendErr "当前已是最新版本!"
    startEAVCaptureAndExit
fi

#download new version from ftp server.
sendMsg "正在下载新版本文件"
ftp -n <<EOF
open $ServerIP $FTPPort
user $FTPUSER $FTPPASS
binary
get $RemoteAppFile
close
bye
EOF

#check download success or not.
if [ ! -f $RemoteAppFile ];then
      sendErr "下载 $RemoteAppFile 失败!"
      startEAVCaptureAndExit
fi

#re-generate remote app file md5 value.
NewRemoteMD5Value=$(md5sum $RemoteAppFile | awk '{print $1}')
if [ $NewRemoteMD5Value != ${RemoteMD5Value} ];then
      echo "Get md5 value is ${RemoteMD5Value}"
      echo "Generate md5 value is ${NewRemoteMD5Value}"
      sendErr "验证MD5失败:$RemoteAppFile!"
      startEAVCaptureAndExit
fi

#backup current version.
sendMsg "正在备份当前版本文件"
if [ ! -d ../Backup ];then
  mkdir ../Backup
fi
  tar cvfj ../Backup/EAVCaptureBackup.tar.bz2 *

#remove old files,keep new version.
sendMsg "正在删除旧版本文件..."
rm `ls | egrep -v 'EAVCapture_Remote.tar.bz2|EAVCapture_Remote.md5'`
#fix its name.
mv $RemoteAppFile $LocalAppFile
mv $RemoteMD5File $LocalMD5File
tar jxvf $LocalAppFile
sendMsg "升级成功!"
startEAVCaptureAndExit
#######################################################################