Android中使用Tcpdump抓取网络数据包

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Android

工具：

tcpdump 抓取网络数据包，下载地址 http://www.strazzere.com/android/tcpdump

源码和文档http://www.tcpdump.org/

wireshark 无须多说了，PC上大名鼎鼎的网络数据抓取分析工具，这里主要是用来打开和分析tcpdump抓取的网路数据包。

使用：

1.下载tcpdump到电脑上

Java代码

adbroot
adbremount
adbpushtcpdump/system/bin/tcpdump
adbshellchmod6755/system/bin/tcpdump

    adb root      adb remount      adb push tcpdump /system/bin/tcpdump      adb shell chmod 6755  /system/bin/tcpdump

2. 运行tcpdump，这个需要root权限，不过上面的命令已经获取root了

Java代码

adbshelltcpdump-iany-p-s0-w/sdcard/capture.pcap
#"-iany":listenonanynetworkinterface
#"-p":disablepromiscuousmode(doesn'tworkanyway)
#"-s0":capturetheentirepacket
#"-w":writepacketstoafile(ratherthanprintingtostdout)
...dowhateveryouwanttocapture,then^Ctostopit...
adbpull/sdcard/capture.pcap.
sudoapt-getinstallwireshark#orethereal,ifyou'restillondapper
wiresharkcapture.pcap#orethereal
...lookatyourpacketsandbewise...

    adb shell tcpdump -i any -p -s 0 -w /sdcard/capture.pcap      # "-i any": listen on any network interface      # "-p": disable promiscuous mode (doesn't work anyway)      # "-s 0": capture the entire packet      # "-w": write packets to a file (rather than printing to stdout)               ... do whatever you want to capture, then ^C to stop it ...            adb pull /sdcard/capture.pcap .      sudo apt-get install wireshark  # or ethereal, if you're still on dapper      wireshark capture.pcap          # or ethereal               ... look at your packets and be wise ...

You can run tcpdump in the background from an interactive shell or from Terminal. By default, tcpdump captures all traffic without filtering. If you prefer, add an expression like port 80 to the tcpdump command line.

Real time packet monitoring
Execute the following if you would like to watch packets go by rather than capturing them to a file (-n skips DNS lookups. -s 0 captures the entire packet rather than just the header):

adbshelltcpdump-n-s0

Typical tcpdump options apply. For example, if you want to see HTTP traffic:

adbshelltcpdump-X-n-s0port80

怎么使用wireshark进行分析就不再赘述了。 Android通过tcpdump抓包

1. 手机要有root权限

2. 下载tcpdump http://www.strazzere.com/android/tcpdump

3.adb push c:\wherever_you_put\tcpdump/data/local/tcpdump

4.adb shell chmod 6755 /data/local/tcpdump

5, adb shell, su获得root权限

6， cd /data/local

7， ./tcpdump -i any -p -s 0 -w /sdcard/capture.pcap

命令参数：

# "-i any": listen on any network interface

　　# "-p": disable promiscuous mode (doesn't work anyway)

　　# "-s 0": capture the entire packet

　　# "-w": write packets to a file (rather than printing to stdout)

　　... do whatever you want to capture, then ^C to stop it ...

8, adb pull /sdcard/capture.pcap d:/

9, 在电脑上用wireshark打开capture.pcap即可分析log

Execute the following if you would like to watch packets go by rather than capturing them to a file (-n skips DNS lookups. -s 0 captures the entire packet rather than just the header):

adbshelltcpdump-n-s0

Typical tcpdump options apply. For example, if you want to see HTTP traffic:

只监听http

adbshelltcpdump-X-n-s0port80

根据以上的信息，写一个bat去执行（tcpdump文件必须在当前目录里）。

开始tcpdump

adb push tcpdump /data/local/tcpdump adb shell chmod 6755 /data/local/tcpdump adb shell rm -r /sdcard/capture.pcap adb shell /data/local/tcpdump -i any -p -s 0 -w /sdcard/capture.pcap pause

下载tcpdump文件到电脑

adb pull /sdcard/capture.pcap capture.pcap

问题：有些机器root后通过adb shell 后，默认不是root用户，需要输入 su才能切换到root，这样在执行批处理会有问题，解决方法如下

adb shell "su -c 'sleep 1'" adb start-server

adb push tcpdump /data/local/tcpdump

Android中使用Tcpdump抓取网络数据包

Android中使用Tcpdump抓取网络数据包

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