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Thread: bpf packet capture and SOCK_STREAM socket redirects...




bpf packet capture and SOCK_STREAM socket redirects...
user name
2008-03-19 22:06:00
Hi All,

Is it possible to redirect/send/divert a bpf packet capture
of one
interface to a listening tcp socket on another interface of
the same
machine?
Here is my problem:
I'm capturing packets on one interface but for some specific
tcp
packets let's say from host A to host B on port P, I want to
hijack
the packet and send it to a listening tcp socket on the
other
interface and reply an "Access Denied" message.

I'd like to use the tcp socket on the other interface as
it's not
possible to communicate over the interface that's doing the
packet
capture and I don't want to invent the wheel by doing all
the tcp/tcb
states hence using a tcp socket.

Thanks a lot
Alireza
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