Date: Fri, 21 Jan 2000 13:38:14 -0500 From: Bill Fumerola <billf@chc-chimes.com> To: Stephen Roome <steveroo@mothra.bri.hp.com> Cc: Gene Harris <zeus@tetronsoftware.com>, matt <matt@ARPA.MAIL.NET>, FreeBSD-STABLE <stable@FreeBSD.ORG> Subject: Re: Restricting RST & Dropping SYN/FIN (was; stream.c) Message-ID: <20000121133814.C48683@jade.chc-chimes.com> In-Reply-To: <Pine.HPX.4.10.10001211200441.27079-100000@mothra.bri.hp.com>; from steveroo@mothra.bri.hp.com on Fri, Jan 21, 2000 at 12:01:23PM %2B0000 References: <Pine.BSF.4.10.10001210037290.620-100000@tetron02.tetronsoftware.com> <Pine.HPX.4.10.10001211200441.27079-100000@mothra.bri.hp.com>
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On Fri, Jan 21, 2000 at 12:01:23PM +0000, Stephen Roome wrote:
> > options TCP_DROP_SYNFIN
> > options TCP_RESTRICT_RST
>
> Maybe it's a stupid question, but should sysctl even report these variables
> if they are not available to be set ?
Possibly, but the sysctl's haven't been "registered" unless those options
are set.
#ifdef TCP_DROP_SYNFIN
static int drop_synfin = 0;
SYSCTL_INT(_net_inet_tcp, OID_AUTO, drop_synfin, CTLFLAG_RW,
&drop_synfin, 0, "Drop TCP packets with SYN+FIN set");
#endif
from netinet/tcp_input.c
--
Bill Fumerola - Network Architect
Computer Horizons Corp - CVM
e-mail: billf@chc-chimes.com / billf@FreeBSD.org
Office: 800-252-2421 x128 / Cell: 248-761-7272
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