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Extend the effect of the sysctl net.inet.tcp.icmp_may_rst

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so that, if we recieve a ICMP "time to live exceeded in transit",
(type 11, code 0) for a TCP connection on SYN-SENT state, close
the connection.

MFC after:	2 weeks
This commit is contained in:
jesper 2002-06-30 20:07:21 +00:00
parent 065834fe01
commit 3a003d229a
2 changed files with 2 additions and 2 deletions
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2
sys/netinet/tcp_subr.c
View File

@ -1042,7 +1042,7 @@ tcp_ctlinput(cmd, sa, vip)
if (cmd == PRC_QUENCH)
notify = tcp_quench;
else if (icmp_may_rst && (cmd == PRC_UNREACH_ADMIN_PROHIB ||
cmd == PRC_UNREACH_PORT) && ip)
cmd == PRC_UNREACH_PORT || cmd == PRC_TIMXCEED_INTRANS) && ip)
notify = tcp_drop_syn_sent;
else if (cmd == PRC_MSGSIZE)
notify = tcp_mtudisc;

2
sys/netinet/tcp_timewait.c
View File

@ -1042,7 +1042,7 @@ tcp_ctlinput(cmd, sa, vip)
if (cmd == PRC_QUENCH)
notify = tcp_quench;
else if (icmp_may_rst && (cmd == PRC_UNREACH_ADMIN_PROHIB ||
cmd == PRC_UNREACH_PORT) && ip)
cmd == PRC_UNREACH_PORT || cmd == PRC_TIMXCEED_INTRANS) && ip)
notify = tcp_drop_syn_sent;
else if (cmd == PRC_MSGSIZE)
notify = tcp_mtudisc;