Date: Wed, 10 May 1995 14:49:51 -0600 From: Matt Day <mday@elbereth.org> To: freebsd-hackers@FreeBSD.org Subject: Re: Is this a bug in tcp_input.c ? (fwd) Message-ID: <199505102049.AA13444@park.uvsc.edu>
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Perhaps this is worth investigating.
Matt Day <mday@elbereth.org>
> Article 14902 of comp.protocols.tcp-ip:
> Path: park.uvsc.edu!news.provo.novell.com!nntp.et.byu.edu!gatech!howland.reston.ans.net!newsserver.jvnc.net!nntpserver.pppl.gov!cnn.Princeton.EDU!flagstaff.princeton.edu!dawagner
> From: dawagner@flagstaff.princeton.edu (David A. Wagner)
> Newsgroups: comp.protocols.tcp-ip
> Subject: Is this a bug in tcp_input.c ?
> Date: 9 May 1995 04:44:51 GMT
> Organization: Princeton University
> Lines: 20
> Message-ID: <3oms03$j1v@cnn.Princeton.EDU>
> NNTP-Posting-Host: flagstaff.princeton.edu
>
> In tcp_input.c, look at this section:
>
> /*
> * If a new connection request is received
> * while in TIME_WAIT, drop the old connection
> * and start over if the sequence numbers
> * are above the previous ones.
> */
> if (tiflags & TH_SYN &&
> tp->t_state == TCPS_TIME_WAIT &&
> SEQ_GT(ti->ti_seq, tp->rcv_nxt)) {
> iss = tp->rcv_nxt + TCP_ISSINCR;
>
> Shouldn't that be a tp->snd_nxt instead of a tp->rcv_nxt ?
>
> [The variable iss is used as the initial sequence number
> for the new connnection, and tcp_iss is ignored.]
>
> -------------------------------------------------------------------------------
> David Wagner dawagner@princeton.edu
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