Possible to use VpnService implementation to capture and send packets?

Question

I\'m considering the possibility of using the new android (4.0) VpnService interface to implement simple packet capture and analysis. Does anyone know if it\'s possible to t

Answer 1

tPacketCapture creates a second socket to the remote machine to forward the packets. I have looked at tPacketCapture using adb shell netstat:

Proto Recv-Q Send-Q Local Address              Foreign Address            State 
tcp        0      0 192.168.1.126:49828        97.74.42.79:80             ESTABLISHED
tcp6       0      0 ::ffff:127.0.0.1:5000      :::*                       LISTEN
tcp6       0    522 ::ffff:10.8.0.1:50294      ::ffff:97.74.42.79:80      ESTABLISHED
tcp6       0      0 ::ffff:192.168.1.126:34210 ::ffff:74.125.141.188:5228 ESTABLISHED
tcp6       0      1 ::ffff:192.168.1.126:43379 ::ffff:74.125.224.174:80   CLOSE_WAIT
tcp6       0      1 ::ffff:192.168.1.126:60217 ::ffff:74.125.239.14:443   CLOSE_WAIT

Note 97.74.42.79:80 twice.

Guess I'll have to do the same unless someone has a better idea.