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From: "Crist J. Clark" <cjc@FreeBSD.org>
Date: Mon, 25 Feb 2002 00:29:21 -0800 (PST)
To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject: cvs commit: src/sys/netinet tcp_input.c
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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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