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From: Attilio Rao <attilio@FreeBSD.org>
Date: Tue, 11 Oct 2011 13:42:42 +0000 (UTC)
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Subject: svn commit: r226254 - stable/9/sys/netinet
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Author: attilio
Date: Tue Oct 11 13:42:42 2011
New Revision: 226254
URL: http://svn.freebsd.org/changeset/base/226254

Log:
  MFC r226060:
  Skip TCP_SIGNATURE calculation for INP_TIMEWAIT case.
  
  Sponsored by:	Sandvine Incorporated
  Approved by:	re (kib)

Modified:
  stable/9/sys/netinet/tcp_input.c
Directory Properties:
  stable/9/sys/   (props changed)
  stable/9/sys/amd64/include/xen/   (props changed)
  stable/9/sys/boot/   (props changed)
  stable/9/sys/boot/i386/efi/   (props changed)
  stable/9/sys/boot/ia64/efi/   (props changed)
  stable/9/sys/boot/ia64/ski/   (props changed)
  stable/9/sys/boot/powerpc/boot1.chrp/   (props changed)
  stable/9/sys/boot/powerpc/ofw/   (props changed)
  stable/9/sys/cddl/contrib/opensolaris/   (props changed)
  stable/9/sys/conf/   (props changed)
  stable/9/sys/contrib/dev/acpica/   (props changed)
  stable/9/sys/contrib/octeon-sdk/   (props changed)
  stable/9/sys/contrib/pf/   (props changed)
  stable/9/sys/contrib/x86emu/   (props changed)

Modified: stable/9/sys/netinet/tcp_input.c
==============================================================================
--- stable/9/sys/netinet/tcp_input.c	Tue Oct 11 13:40:37 2011	(r226253)
+++ stable/9/sys/netinet/tcp_input.c	Tue Oct 11 13:42:42 2011	(r226254)
@@ -948,24 +948,8 @@ relocked:
 		}
 		INP_INFO_WLOCK_ASSERT(&V_tcbinfo);
 
-#ifdef TCP_SIGNATURE
-		tcp_dooptions(&to, optp, optlen,
-		    (thflags & TH_SYN) ? TO_SYN : 0);
-		if (sig_checked == 0) {
-			tp = intotcpcb(inp);
-			if (tp == NULL || tp->t_state == TCPS_CLOSED) {
-				rstreason = BANDLIM_RST_CLOSEDPORT;
-				goto dropwithreset;
-			}
-			if (!tcp_signature_verify_input(m, off0, tlen, optlen,
-			    &to, th, tp->t_flags))
-				goto dropunlock;
-			sig_checked = 1;
-		}
-#else
 		if (thflags & TH_SYN)
 			tcp_dooptions(&to, optp, optlen, TO_SYN);
-#endif
 		/*
 		 * NB: tcp_twcheck unlocks the INP and frees the mbuf.
 		 */