概述

设备升级页面

升级固件简要说明

最新升级文件

文件下载地址

OTA文件分析

OEM的目录结构

概述

今日mixpad 精灵款推送了最新的OTA升级文件，

然而，此升级文件已经可以通过链接可以自由下载了！

设备升级页面

设备的升级页面如下：

升级固件简要说明

【精灵正式版】兼容单火/零火精灵， 合并5.3.2、5.3.3代码。

修复BUG：

1、MixPad 精灵被365删除后，频繁上报数据，导致服务器压力大问题；

2、特定情况下，MixPad 精灵自带遥控器出现异常时，崩溃问题。

最新升级文件

 HomeAI_OS_5.3.6.307_MixPadGenius_OTA_202109301101.tar_30153439.gz

文件下载地址

等下我上传到我的网盘里，需要的可以发私信。

CSDN专属链接地址：https://download.csdn.net/download/leekwen/33193640

OTA文件分析

OTA文件内部包含文件系统的核心内容，到时我专门写篇文章来分析一下吧！

这里先大致让大家看一下目录结构！

[root@192-168-0-171 leekwen]# cd MixPadGenius_OTA/
[root@192-168-0-171 MixPadGenius_OTA]# ls
do_upgrade_oem  oem  upgrade.list
[root@192-168-0-171 MixPadGenius_OTA]# ls -l
total 124
-rwxr-xr-x 1 root root  12936 Sep 30 11:01 do_upgrade_oem
drwxr-xr-x 6 root root    329 Sep 30 11:01 oem
-rw-r--r-- 1 root root 107175 Sep 30 11:01 upgrade.list
[root@192-168-0-171 MixPadGenius_OTA]# cat do_upgrade_oem
#!/bin/sh

# 用于打印
PROCESS_NAME=$0

EMBER_DISK=/oem
FIRM_PATH=/oem/ember-host
EMBER_APP_PATH=$EMBER_DISK/ember-host/bin/
VIHOME_BAKDIR=$EMBER_APP_PATH/vihome.bak
TMP_PATH=/tmp/
VIHOME_ENV_HARDWARE=MixpadHostLinux

FW_MD5FILE=fw.md5
UPGRADE_LIST=upgrade.list
UPGRADE_MARK=upgrade.mark

#工厂测试相关文件，升级时空间不够，删除
AGING_FILE=/oem/app/aging_test.tar.gz
FACTORY_TEST_FILE=/oem/app/factory_test.tar.gz

#安装失败的标记
UPGRADE_FAIL_MARK=/userdata/upgrade_failed_mark

#第三方脚本
MIXPAD_THIRD_PROG=/oem/third_start.sh

# 先检查参数是否合规
if [ $# -ne 1 ]; then
        echo "ERROR: args $# error!!"
        echo "USAGE: $0 [ota_file_name]"
        exit 1
fi

remount_ro_partition() {
        #恢复只读
        sync
        mount -o remount,ro $EMBER_DISK
}

prepare() {

        # 固件目录创建
        [ -d $EMBER_DISK ] || mkdir  $EMBER_DISK
        #获取oem分区读写权限
        mount -o remount,rw $EMBER_DISK

        #[ -d $UPGRADE_DIR ] && rm -rf $UPGRADE_DIR
        #mkdir -p $UPGRADE_DIR
        # 固件目录改为传进来
        if [ ! -d $UPGRADE_DIR ]; then
                remount_ro_partition
                exit 1
        fi
}

set_busybox() {
        # BUSYBOX=$EMBER_APP_PATH/busybox
        MD5SUM="busybox md5sum"
        AWK="busybox awk"
        SYNC="busybox sync"
        SED="busybox sed"
        DF="busybox df"
        baseNAME="busybox basename"
        DIRNAME="busybox dirname"
}

set_boot_logo() {

    #确认当前语言设置
    lan_str=`cat /userdata/config/blackboard.ini  | grep -w language`
    if [ "$lan_str"x != ""x ]; then
        #去掉空格
        lan_str=`echo $lan_str | sed 's/ //g'`
        #截取=后面的字符串
        lan_str=`echo ${lan_str#*=}`
    else
        echo "do_upgrade_oem: language not found"
        logger "do_upgrade_oem: language not found in /userdata/config/blackboard.ini"
    fi

    LOGO_EN_PATH="/usr/share/logo/update-en.ebm"
    if [ "$lan_str"x == "en"x ] && [ -f $LOGO_EN_PATH ]; then
        logo_file=$LOGO_EN_PATH
    else
        logo_file="/usr/share/logo/update.ebm"
    fi

    if [ -f ${logo_file} ]; then
        dd if=${logo_file} of=/dev/fb0
    fi
}

stop_all_app() {
        echo "=== stop_all_app ==="
        logger "stop_all_app, freeze display"
        echo "output:all:freeze" > /tmp/.weston_drm.conf
        /oem/orb_start.sh stop

        #显示升级logo
        set_boot_logo

        #20201126临时方案 start
        GATEWAY_PID=$(pidof ember-host)
        if [ "$GATEWAY_PID"x != ""x ] && [ "$GATEWAY_PID"x != " "x ]; then
                killall -9 init.gw-service
                killall -9 proxy_system_daemon
                killall -9 host_http_ota
                /oem/ember-host/bin/ember_main stopmon
                /oem/ember-host/bin/ember_main stop
                killall -9 mesh_provisioner
        fi
        :'
        if [ -f $AGING_FILE ]; then
                rm -f $AGING_FILE
        fi

        if [ -f $FACTORY_TEST_FILE ]; then
                rm -f $FACTORY_TEST_FILE
        fi
        '

        #20201126临时方案 end

        sleep 3
}

start_all_app() {
        echo "=== start_all_app ==="
        logger "=== start_all_app ==="
        /oem/orb_start.sh start

        #执行第三方程序脚本
        if [ -f $MIXPAD_THIRD_PROG ]; then
                $MIXPAD_THIRD_PROG restart
        fi
        sleep 5
        echo "output:all:unfreeze" > /tmp/.weston_drm.conf
        logger "unfreeze display"
}

progress_bar() {
        percent=$(awk 'BEGIN{printf "%03d",('$line_no'/'$line_sum')*100}')
        let line_no=line_no+1
        echo  "percent:$percent%"
        logger "percent:$percent%"
}

start_upgrade() {
        RET=0
        # 只读时，需则重新挂载
        # mount -o remount,rw /system

        # make a Mark
        date >> $EMBER_DISK/$UPGRADE_MARK
        let line_sum=$(cat $UPGRADE_DIR/$UPGRADE_LIST | wc -l)
        let line_no=1
        BAR_PIPE=/tmp/do_upgrade_oem.pipe
        [ ! -p do_upgrade_oem.pipe ] || rm $BAR_PIPE
        mkfifo $BAR_PIPE

        # 重命名后缀文件名记录
        MODIFY_NAME_FILE=$TMP_PATH/do_upgrade_modify_file.text
        [ -f $MODIFY_NAME_FILE ] && rm -f $MODIFY_NAME_FILE
        find /oem -name *._upg_tmp | xargs rm -f

        # copy file to specified path
        while read line
        do
                # 进度条
                progress_bar

                WPATH_CHECK_BIN=/$(echo $line | $AWK '{print $2}')
        DIR_CHECK_BIN=$($DIRNAME $WPATH_CHECK_BIN)

                MD5=$(echo $line | $AWK '{print $1}')
                # WPATH : 绝对路径+文件名称
                WPATH=/$(echo $line | $AWK '{print $2}')
                FILE=$($baseNAME $WPATH)
                DIR=$($DIRNAME $WPATH)
        echo ""
                echo WPATH:$WPATH FILE:$FILE
                echo MD5:$MD5
                # get MD5 CHECKSUM
                if [ -e "$WPATH" ]; then
                        SUM=$($MD5SUM $WPATH | $AWK '{print $1}')
                        if [ "$SUM" == "$MD5" ]; then
                                echo "same as last, skip upgrade: $FILE"
                                continue
                        fi
                fi

                # loop copy until file's md5 correct
                TRY_TIMES=1
                while [ $TRY_TIMES -lt 10 ];
                do
                        # 先创建文件夹
                        DIR_NAME=`dirname ${WPATH}`
                        [ -d ${DIR_NAME} ] || mkdir -p ${DIR_NAME}
                        # 将目标文件拷贝到目标文件系统，重命名成临时后缀
                        UPGRADE_TMP="${WPATH}._upg_tmp"

                        CUR_PRO_PID=$(pidof $FILE)
                        if [ "$CUR_PRO_PID"x != ""x ] && [ "$CUR_PRO_PID"x != " "x ]; then
                                echo "killall $FILE"
                                logger "killall $FILE"
                                killall -9 $FILE
                                sleep 0.1
                        fi

                        echo "install copy $UPGRADE_DIR/$WPATH --> $UPGRADE_TMP"
                        logger "install copy $UPGRADE_DIR/$WPATH --> $UPGRADE_TMP"
                        time cp -f "$UPGRADE_DIR/$WPATH" "$UPGRADE_TMP"
                        if [ $? -eq 0 ]; then
                                $SYNC
                                echo $UPGRADE_TMP >> $MODIFY_NAME_FILE
                                # 计算 MD5
                                TMP_FILE_SUM=$($MD5SUM $UPGRADE_TMP | $AWK '{print $1}')
                                if [ "$TMP_FILE_SUM" != "$MD5" ]; then
                                        echo "tmp_file $UPGRADE_TMP check md5[$TMP_FILE_SUM]  failded!!"
                                        logger "tmp_file $UPGRADE_TMP check md5[$TMP_FILE_SUM]  failded!!"
                                        RET=255
                                fi
                                break
                        else
                                echo "cp firmware file failed!"
                                logger "cp firmware file failed!"

                                #拷贝失败可能是进程还在运行，终止进程
                                CUR_PRO_PID=$(pidof $FILE)
                                if [ "$CUR_PRO_PID"x != ""x ] && [ "$CUR_PRO_PID"x != " "x ]; then
                                        echo "killall $FILE"
                                        logger "killall $FILE"
                                        killall -9 $FILE
                                        sync
                                        sleep 0.1
                                fi

                                RET=255
                        fi
                        let "TRY_TIMES = TRY_TIMES + 1"
                done

                # failed upgrade, break loop
                [ $RET -ne 0 ] && break
        done < $UPGRADE_DIR/$UPGRADE_LIST

        # 完成时，将临时后缀去掉，重命名成目标文件
        if [ $RET -eq 0 -a -f $MODIFY_NAME_FILE ]; then
                echo "======== start move =========="
                logger "======== start move =========="
                # cat $MODIFY_NAME_FILE
                         cat $MODIFY_NAME_FILE | xargs -i echo mv {} {} | sed 's/._upg_tmp//2'
                time cat $MODIFY_NAME_FILE | xargs -i echo mv {} {} | sed 's/._upg_tmp//2' | sh
                $SYNC
                echo "======== finish move =========="
                logger "======== finish move =========="
        else
                echo "======== nothing to move =========="
                logger "======== nothing to move =========="
        fi

        if [ $RET -eq 0 ]; then
                echo "Upgrade Complete."
                logger "Upgrade Complete."
        else
                echo "Upgrade End with error: $RET !!"
                logger "Upgrade End with error: $RET !!"
        fi
        return $RET
}

start_upgrade_userdata() {
        RET=0
        # make a Mark
        date >> $EMBER_DISK/$UPGRADE_MARK
        let line_sum=$(cat $UPGRADE_DIR/$UPGRADE_LIST | wc -l)
        let line_no=1
        BAR_PIPE=/tmp/do_upgrade_oem.pipe
        [ ! -p do_upgrade_oem.pipe ] || rm $BAR_PIPE
        mkfifo $BAR_PIPE

        # 重命名后缀文件名记录
        MODIFY_NAME_FILE=$TMP_PATH/do_upgrade_modify_file.text
        [ -f $MODIFY_NAME_FILE ] && rm -f $MODIFY_NAME_FILE
        find /oem -name *._upg_tmp | xargs rm -f

        # copy file to specified path
        while read line
        do
                # 进度条
                progress_bar

                WPATH_CHECK_BIN=/$(echo $line | $AWK '{print $2}')
        DIR_CHECK_BIN=$($DIRNAME $WPATH_CHECK_BIN)

                MD5=$(echo $line | $AWK '{print $1}')
                # WPATH : 绝对路径+文件名称
                WPATH=/$(echo $line | $AWK '{print $2}')
                FILE=$($baseNAME $WPATH)
                DIR=$($DIRNAME $WPATH)
        echo ""
                echo WPATH:$WPATH FILE:$FILE
                echo MD5:$MD5
                # get MD5 CHECKSUM
                if [ -e "$WPATH" ]; then
                        SUM=$($MD5SUM $WPATH | $AWK '{print $1}')
                        if [ "$SUM" == "$MD5" ]; then
                                echo "same as last, skip upgrade: $FILE"
                                logger "same as last, skip upgrade: $FILE"
                                continue
                        fi
                fi

                # loop copy until file's md5 correct
                TRY_TIMES=1
                while [ $TRY_TIMES -lt 10 ];
                do
                        # 先创建文件夹
                        DIR_NAME=`dirname ${WPATH}`
                        [ -d ${DIR_NAME} ] || mkdir -p ${DIR_NAME}
                        # 将目标文件覆盖到目标文件
                        echo "install copy $UPGRADE_DIR/$WPATH --> $WPATH"
                        logger "install copy $UPGRADE_DIR/$WPATH --> $WPATH"

                        CUR_PRO_PID=$(pidof $FILE)
                        echo "#######################CUR_PRO_PID=$CUR_PRO_PID"
                        if [ "$CUR_PRO_PID"x != ""x ] && [ "$CUR_PRO_PID"x != " "x ]; then
                                echo "killall $FILE"
                                logger "killall $FILE"
                                killall -9 $FILE
                                sleep 0.1
                        fi

                        time cp -f "$UPGRADE_DIR/$WPATH" "$WPATH"
                        if [ $? -eq 0 ]; then
                                $SYNC
                                echo $WPATH >> $MODIFY_NAME_FILE
                                # 计算 MD5
                                TMP_FILE_SUM=$($MD5SUM $WPATH | $AWK '{print $1}')
                                if [ "$TMP_FILE_SUM" != "$MD5" ]; then
                                        echo "tmp_file $WPATH check md5[$TMP_FILE_SUM]  failded!!"
                                        logger "tmp_file $WPATH check md5[$TMP_FILE_SUM]  failded!!"
                                        RET=255
                                fi
                                break
                        else
                                echo "cp firmware file failed!"
                                logger "cp firmware file failed!"

                                #拷贝失败可能是进程还在运行，终止进程
                                CUR_PRO_PID=$(pidof $FILE)
                                if [ "$CUR_PRO_PID"x != ""x ] && [ "$CUR_PRO_PID"x != " "x ]; then
                                        echo "killall $FILE"
                                        logger "killall $FILE"
                                        killall -9 $FILE
                                        sync
                                        sleep 0.1
                                fi
                                RET=255
                        fi
                        let "TRY_TIMES = TRY_TIMES + 1"
                done

                # failed upgrade, break loop
                [ $RET -ne 0 ] && break
        done < $UPGRADE_DIR/$UPGRADE_LIST

        if [ $RET -eq 0 ]; then
                echo "Upgrade Complete."
                logger "Upgrade Complete."
        else
                echo "Upgrade End with error: $RET !!"
                logger "Upgrade End with error: $RET !!"
        fi

        return $RET
}

# check md5
check_upgradefile_md5() {
        $MD5SUM -c $UPGRADE_DIR/$UPGRADE_LIST
        RET=$?
        return $RET
}

# check disk space
check_free_disk() {
        FUNCNAME="check_free_disk()"

        RET=0
        UPGRADE_FILE_SIZE=$(du -ks $UPGRADE_DIR | $AWK '{print $1}')
        echo "[$PROCESS_NAME $FUNCNAME] UPGRADE_FILE_SIZE:$UPGRADE_FILE_SIZE"
        logger "[$PROCESS_NAME $FUNCNAME] UPGRADE_FILE_SIZE:$UPGRADE_FILE_SIZE"
        # 获取可用空间
        DISK_SPACE=$($DF $EMBER_DISK | grep "$EMBER_DISK" | $AWK '{print $4}')
        echo "[$PROCESS_NAME $FUNCNAME] DISK_SPACE:$DISK_SPACE"
        logger "[$PROCESS_NAME $FUNCNAME] DISK_SPACE:$DISK_SPACE"
        if [ $DISK_SPACE -lt $UPGRADE_FILE_SIZE ]; then
                echo "[$PROCESS_NAME $FUNCNAME] Disk space Not enough! $DISK_SPACE < $UPGRADE_FILE_SIZE"
                logger "[$PROCESS_NAME $FUNCNAME] Disk space Not enough! $DISK_SPACE < $UPGRADE_FILE_SIZE"
                RET=128
        fi

        return $RET
}

# clear upgrade files
clean_upgrade() {
        echo "Clean Upgrade files."
        logger "Clean Upgrade files."
        rm -rf $UPGRADE_DIR
}


main() {
        FUNCNAME="main()"
        # 1. 准备环境
        echo "[$PROCESS_NAME $FUNCNAME] enter prepare"
        logger "[$PROCESS_NAME $FUNCNAME] enter prepare"
        prepare
        set_busybox

        if [ ! -s $UPGRADE_DIR/$UPGRADE_LIST ]; then
                echo "[$PROCESS_NAME $FUNCNAME] upgrade_list $UPGRADE_LIST is not exist, error!!"
                logger "[$PROCESS_NAME $FUNCNAME] upgrade_list $UPGRADE_LIST is not exist, error!!"
                remount_ro_partition
                exit 1
        fi

        # 检查 md5 值
        cd $UPGRADE_DIR
        check_upgradefile_md5
        RET=$?
        echo "[$PROCESS_NAME $FUNCNAME] check_upgradefile_md5 RET:$RET"
        logger "[$PROCESS_NAME $FUNCNAME] check_upgradefile_md5 RET:$RET"
        if [ $RET -ne 0 ]; then
                echo "[$PROCESS_NAME $FUNCNAME] check_upgradefile_md5 RET error!!"
                logger "[$PROCESS_NAME $FUNCNAME] check_upgradefile_md5 RET error!!"
                remount_ro_partition
                exit 1
        fi

        # 检查磁盘大小
        check_free_disk
        RET=$?
        echo "[$PROCESS_NAME $FUNCNAME] check_free_disk RET:$RET"
        logger "[$PROCESS_NAME $FUNCNAME] check_free_disk RET:$RET"
        if [ $RET -ne 0 ]; then
                echo "[$PROCESS_NAME $FUNCNAME] check_free_disk error!!"
                logger "[$PROCESS_NAME $FUNCNAME] check_free_disk error!!"
                # 空间不够时，尝试使用单个文件覆盖的方式 ， 后续......
        fi

        # 停止 app
        echo "[$PROCESS_NAME $FUNCNAME] stop apps"
        logger "[$PROCESS_NAME $FUNCNAME] stop apps"
        stop_all_app
        if [ $RET -eq 0 ]; then
                # 空间足够 开始升级
                start_upgrade
    else
                # 空间不够 按单个覆盖方式升级
                start_upgrade_userdata
        fi
        if [ $RET -ne 0 ]; then
                echo "[$PROCESS_NAME $FUNCNAME] start_upgrade RET error!!"
                logger "[$PROCESS_NAME $FUNCNAME] start_upgrade RET error!!"
                # 错误不退出，直接重启系统，尝试重新安装一次
                if [ ! -f $UPGRADE_FAIL_MARK ]; then
                        date >  $UPGRADE_FAIL_MARK
                        sync
                        sleep 1
                        reboot
                        sleep 20
                fi
    fi

        #升级成功，删除标记文件
        rm -f $EMBER_DISK/$UPGRADE_MARK
        rm -f $UPGRADE_FAIL_MARK

        #升级成功，删除下载的文件
        rm /userdata/app_oem_update.bin
        # 清理
        clean_upgrade
        echo "[$PROCESS_NAME $FUNCNAME] upgrade done, start apps..."
        logger "[$PROCESS_NAME $FUNCNAME] upgrade done, start apps..."
        sync
        # 启动 app
        start_all_app
        echo "[$PROCESS_NAME $FUNCNAME] upgrade done."
        logger "[$PROCESS_NAME $FUNCNAME] upgrade done."
        sync
}

UPGRADE_DIR=$1
echo "do_upgrade_oem $UPGRADE_DIR"
logger "do_upgrade_oem $UPGRADE_DIR"

# 主函数
main

remount_ro_partition
exit 0

OEM的目录结构

具体的文件分析，我就不在这篇里面进行表述了。