Does raw socket block packets from transferring to upper level ?

android2009 · 09-12-2010, 10:24 PM

I want to write a raw socket program to chase packet address. Just wondering if that would block those packets from transferring to upper level ? Or it would just look at it without real touch ?

probably I would just create a socket and use 'recvfrom()' to get those packets.

Any idea is well appreciated,
Thanks.

nini09 · 09-15-2010, 02:46 PM

You can use recvfrom() to receive packets, the packets are all, including everything. Not only packets you send out through raw socket.

android2009 · 09-15-2010, 11:12 PM

Thanks. What I trying to ask was whether this recvfrom function would hook all packets?

If I have a TCP/IP socket on upper level as well as a raw socket on bottom level, would recvfrom() block those packets from transferring to TCP/IP socket ?

Quote:

Originally Posted by nini09

You can use recvfrom() to receive packets, the packets are all, including everything. Not only packets you send out through raw socket.

nini09 · 09-17-2010, 02:36 PM

The recvfrom() of raw socket shouldn't block any packets from transferring to upper level.