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标题: OpenHarmony使用Tcpdump [打印本页]

作者: 深开鸿_王石 时间: 2023-12-13 15:40
标题: OpenHarmony使用Tcpdump
[md]### 简介

**Tcpdump是一个强大的网络抓包分析工具，那么如何在OpenHarmony里编译使用此工具就是我们这篇文章要分享的话题。**

### 编译构建

* **下载：从**[http://www.tcpdump.org](http://www.tcpdump.org)下载最新源码

  ```
  下载地址：wget https://www.tcpdump.org/release/tcpdump-4.99.4.tar.gz
  ```
* **安装编译环境**

  ```
  //编译工具链（32位）
  sudo apt-get install gcc-arm-linux-gnueabi
  //ohos的源码下载后，其实也有对应的工具链，位置如下
  prebuilts/gcc/linux-x86/arm（32位）/gcc-linaro-7.5.0-arm-linux-gnueabi/bin
  ```
* **编译**

  ```
  //设置环境变量
  export CC=arm-linux-gnueabi-gcc
  export CFLAGS=-static
  export CPPFLAGS=-static
  export LDFLAGS=-static
  //配置
  ./configure --host=arm-linux --disable-ipv6
  //编译
  make
  //strip
  arm-linux-gnueabi-strip tcpdump
  ```
* **运行测试**

  ```
  //传到板子上
  hdc_std.exe shell mount -o rw,remount /
  hdc_std.exe file send tcpdump /system/bin
  hdc_std.exe shell chmod +x /system/bin/tcpdump

  //运行测试
  hdc_std.exe shell
  # tcpdump -w data/local/tmp/test.cap
  tcpdump: listening on wlan0, link-type EN10MB (Ethernet), snapshot length 262144 bytes
  14 packets captured
  14 packets received by filter
  0 packets dropped by kernel
  ```

  ![图片.png](https://forums-obs.openharmony.c ... bbu4p4b1uv44u24.png "图片.png")

### 小结

* **配合netstat可以更好的使用tcpdump**
  ```
  # netstat --help
  usage: netstat [-pWrxwutneal]

  Display networking information. Default is netstat -tuwx

  -r    Routing table
  -a    All sockets (not just connected)
  -l    Listening server sockets
  -t    TCP sockets
  -u    UDP sockets
  -w    Raw sockets
  -x    Unix sockets
  -e    Extended info
  -n    Don't resolve names
  -W    Wide display
  -p    Show PID/program name of sockets

  # tcpdump -help
  tcpdump version 4.99.1
  libpcap version 1.10.1 (with TPACKET_V3)
  Usage: tcpdump [-AbdDefhHIJKlLnNOpqStuUvxX#] [ -B size ] [ -c count ] [--count]
      [ -C file_size ] [ -E algo:secret ] [ -F file ] [ -G seconds ]
      [ -i interface ] [ --immediate-mode ] [ -j tstamptype ]
      [ -M secret ] [ --number ] [ --print ] [ -Q in|out|inout ]
      [ -r file ] [ -s snaplen ] [ -T type ] [ --version ]
      [ -V file ] [ -w file ] [ -W filecount ] [ -y datalinktype ]
      [ --time-stamp-precision precision ] [ --micro ] [ --nano ]
      [ -z postrotate-command ] [ -Z user ] [ expression ]
  ```
[/md]

作者: 欲盖弥彰1314 时间: 2024-8-21 14:20

我上传了tcpdump到系统/system/bin
也加了执行权限，执行却说找不到这个文件
# tcpdump
/bin/sh: /bin/tcpdump: No such file or directory

作者: Hazel 时间: 2024-9-14 14:29
回复 欲盖弥彰1314: 用file命令查看tcpdump是32位还是64位，与系统是否相同

作者: Hazel 时间: 2024-9-14 14:30
有没有放到sdk的third_party中编译的例程

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