Date: Wed, 1 Oct 1997 15:39:24 -0700 From: Don Lewis <Don.Lewis@tsc.tdk.com> To: Jim Shankland <jas@flyingfox.com>, richard@a42.deep-thought.org Cc: hackers@FreeBSD.ORG Subject: Re: FreeBSD TCP stack and RST processing [subj changed] Message-ID: <199710012239.PAA16119@salsa.gv.tsc.tdk.com> In-Reply-To: Jim Shankland <jas@flyingfox.com> "Re: FreeBSD TCP stack and RST processing [subj changed]" (Oct 1, 9:08am)
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On Oct 1, 9:08am, Jim Shankland wrote:
} Subject: Re: FreeBSD TCP stack and RST processing [subj changed]
} I took a look at the code in 2.2.2-RELEASE, and it sure looks as though
} it should not exhibit the behavior you described: if a RST packet
} arrives on a connection in the SYN_RECEIVED state, the tcb is closed --
} there should be no retries.
Nope, it looks broken too.
case TCPS_SYN_RECEIVED:
case TCPS_SYN_SENT:
[ deleted ]
if (tiflags & TH_RST) {
if (tiflags & TH_ACK)
tp = tcp_drop(tp, ECONNREFUSED);
goto drop;
}
If a RST arrives without TH_ACK set, the packet is just dropped.
--- Truck
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