Date: Thu, 14 Nov 2013 13:35:12 +0000 From: Andrew Schmidt <Andrew.Schmidt@impactmobile.com> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Question regarding RST packet and the tcp stack Message-ID: <AB6DCFC5655620408374E392D11AB44E10ED55FA@exchange1-tor.impactmobile.local>
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I've been testing out a scenario on windows and linux and I have a question for what FreeBSD does or rfc1122 says: (The code is in java using java.nio) An application (host) has established a remote connection to another machine. The OS on the host receives the following packets in order for that socket: Data packet (6 bytes) FIN packet RST packet At this point the application (host) tries to read from the socket. On windows, this causes a "the os has closed the connection" exception and doesn't let you read those 6 bytes. On Linux, those 6 bytes can be read. I've looked over the TCP rfc: http://www.rfc-editor.org/rfc/rfc1122.txt . But it's not clear what should happen to 6 bytes once a RST packet arrives. Does anyone know what the correct behaviour is? Or point me to freebsd's tcp stack code? Thanks,
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