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Re-enable the TCP SYN-attack protection code. I was the one who didn't

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understand the socket state flag.

2.2 candidate.
This commit is contained in:
Bill Fenner 1996-11-10 07:37:24 +00:00
parent 03fd7487d6
commit 39172c9401
2 changed files with 2 additions and 6 deletions
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4
sys/netinet/tcp_input.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)tcp_input.c 8.12 (Berkeley) 5/24/95
* $Id: tcp_input.c,v 1.53 1996/10/07 19:06:10 davidg Exp $
* $Id: tcp_input.c,v 1.54 1996/10/11 19:26:42 pst Exp $
*/
#ifndef TUBA_INCLUDE
@ -415,14 +415,12 @@ tcp_input(m, iphlen)
so2 = sonewconn(so, 0);
if (so2 == 0) {
tcpstat.tcps_listendrop++;
#ifdef TCPSYNRED
so2 = sodropablereq(so);
if (so2) {
tcp_drop(sototcpcb(so2), ETIMEDOUT);
so2 = sonewconn(so, 0);
}
if (!so2)
#endif
goto drop;
}
so = so2;

4
sys/netinet/tcp_reass.c
View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)tcp_input.c 8.12 (Berkeley) 5/24/95
* $Id: tcp_input.c,v 1.53 1996/10/07 19:06:10 davidg Exp $
* $Id: tcp_input.c,v 1.54 1996/10/11 19:26:42 pst Exp $
*/
#ifndef TUBA_INCLUDE
@ -415,14 +415,12 @@ tcp_input(m, iphlen)
so2 = sonewconn(so, 0);
if (so2 == 0) {
tcpstat.tcps_listendrop++;
#ifdef TCPSYNRED
so2 = sodropablereq(so);
if (so2) {
tcp_drop(sototcpcb(so2), ETIMEDOUT);
so2 = sonewconn(so, 0);
}
if (!so2)
#endif
goto drop;
}
so = so2;