sshpass 实现的SSH免交互密码登录和ARM移植

sshpass在ubuntu上的测试

安装：

sudo apt-get install sshpass 

实例： 

sshpass -p 'yourpassword' ssh root@192.168.5.103

这可以避免一次交互， 

sshpass -p "root" ssh root@192.168.5.103 

脚本的写法：

#!/bin/bash
export SSHPASS='root'
msg=$(sshpass -e ssh root@192.168.5.103 ls /home/root/)
echo $msg

源码下载

网址：Non-interactive ssh password auth - Browse /sshpass at SourceForge.net

目前的最新版本是1.10，下载后解压

tar zxvf sshpass-1.10.tar.gz

交叉编译脚本：

文件命名为build.sh

#!/bin/bash
set -e

# 配置交叉编译环境变量
ARM_GCC_PATH="/usr/local/arm/gcc-linaro-7.5.0-2019.12-x86_64_arm-linux-gnueabihf"
export PATH=${ARM_GCC_PATH}/bin:$PATH
export CC=arm-linux-gnueabihf-gcc
export CFLAGS="-I${ARM_GCC_PATH}/include"

#全局变量
install_path=`pwd`/install_arm
local_rootfs_path=/home/lkmao/nfsroot/myrootfs
cur_dir=`pwd`
SUDO=""

function build_sshpath() {
    echo "install path : $install_path"
    mkdir -p $install_path
    # 配置项目
    ./configure --host=arm-linux-gnueabihf
    # 编译项目
    make
    # 安装到指定目录
    make install prefix=$install_path
    file $install_path/bin/sshpass
}
 
function port_sshpath() {
    echo "port sshpath to rootfs"
    if [ -z "$local_rootfs_path" ] ; then
        echo "local_rootfs_path is null"
        return
    fi
    ${SUDO} cp $install_path/bin/sshpass $local_rootfs_path/usr/bin
    ${SUDO} chown root:root $local_rootfs_path/usr/bin/sshpass
    echo "port sshpath to rootfs done"
}
function check_root() {
    if [ `whoami` == "root" ];then
        SUDO=""
        echo "root user"        
    else
        SUDO="sudo"
        echo "not root user"
    fi
}
 
#int main(int argc, char *argv[]){ 
    check_root
    shell_full_name=$0
    shell_short_name="${shell_full_name##*/}"
    echo shell_short_name=$shell_short_name
    
    if [ "$shell_short_name" == "build.sh" ];then
        echo "build sshpath"
        build_sshpath
        port_sshpath
        if [ ! -e "port.sh" ];then
            ln -s build.sh port.sh || echo "port.sh link build.sh failed"
            echo "get root authority"
        fi
        if [ ! -e "port.sh" ];then
        ${SUDO} ln -s build.sh port.sh
        fi
        
    elif [ "$shell_short_name" == "port.sh" ];then
        echo "port.sh"
        port_sshpath
        echo "port sshpath to rootfs done"
    fi
    
    echo "task done"
    exit 0
# }

测试

命令行测试：

sshpass -p "password" ssh username@192.168.5.5

脚本测试： 

#!/bin/sh
export SSHPASS='root'
msg=$(sshpass -e ssh root@192.168.5.103 ls /home/root/)
echo $msg

文件发送测试

sshpass -p "lkmao" scp sshpass_test.sh lkmao@192.168.5.111:/home/lkmao/ 

小结