Date: Mon, 25 Feb 2002 00:29:21 -0800 (PST) From: "Crist J. Clark" <cjc@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/netinet tcp_input.c Message-ID: <200202250829.g1P8TLI49167@freefall.freebsd.org>
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cjc 2002/02/25 00:29:21 PST
Modified files:
sys/netinet tcp_input.c
Log:
The TCP code did not do sufficient checks on whether incoming packets
were destined for a broadcast IP address. All TCP packets with a
broadcast destination must be ignored. The system only ignored packets
that were _link-layer_ broadcasts or multicast. We need to check the
IP address too since it is quite possible for a broadcast IP address
to come in with a unicast link-layer address.
Note that the check existed prior to CSRG revision 7.35, but was
removed. This commit effectively backs out that nine-year-old change.
PR: misc/35022
Revision Changes Path
1.148 +13 -7 src/sys/netinet/tcp_input.c
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