Reading TCP Sequence Number Before Sending a Packet
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Published on 2010-12-31T04:49:02Z
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I'm writing a C/C++ client-server program under Linux. Assume a message m is to be sent from the client to the server.
Is it possible for the client to read the TCP sequence number of the packet which will carry m, before sending m?
In fact, I'd like to append this sequence number to m, and send the resulting packet. (Well, things are more complicated, but let's keep it that simple. In fact, I'd like to apply authentication info to this sequence number, and then append it to m.)
Moreover,
is it possible for the server to read the TCP sequence number of the packet carrying m?
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