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Date:      Wed, 12 Oct 2016 02:16:42 +0000 (UTC)
From:      "Jonathan T. Looney" <jtl@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org
Subject:   svn commit: r307082 - in head: . sys/amd64/conf sys/arm/conf sys/arm64/conf sys/conf sys/i386/conf sys/mips/conf sys/modules/cc sys/modules/khelp sys/netinet sys/netinet/tcp_stacks sys/pc98/conf sy...
Message-ID:  <201610120216.u9C2Gga8041814@repo.freebsd.org>

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Author: jtl
Date: Wed Oct 12 02:16:42 2016
New Revision: 307082
URL: https://svnweb.freebsd.org/changeset/base/307082

Log:
  In the TCP stack, the hhook(9) framework provides hooks for kernel modules
  to add actions that run when a TCP frame is sent or received on a TCP
  session in the ESTABLISHED state. In the base tree, this functionality is
  only used for the h_ertt module, which is used by the cc_cdg, cc_chd, cc_hd,
  and cc_vegas congestion control modules.
  
  Presently, we incur overhead to check for hooks each time a TCP frame is
  sent or received on an ESTABLISHED TCP session.
  
  This change adds a new compile-time option (TCP_HHOOK) to determine whether
  to include the hhook(9) framework for TCP. To retain backwards
  compatibility, I added the TCP_HHOOK option to every configuration file that
  already defined "options INET". (Therefore, this patch introduces no
  functional change. In order to see a functional difference, you need to
  compile a custom kernel without the TCP_HHOOK option.) This change will
  allow users to easily exclude this functionality from their kernel, should
  they wish to do so.
  
  Note that any users who use a custom kernel configuration and use one of the
  congestion control modules listed above will need to add the TCP_HHOOK
  option to their kernel configuration.
  
  Reviewed by:	rrs, lstewart, hiren (previous version), sjg (makefiles only)
  Sponsored by:	Netflix
  Differential Revision:	https://reviews.freebsd.org/D8185

Modified:
  head/UPDATING
  head/sys/amd64/conf/GENERIC
  head/sys/arm/conf/ATMEL
  head/sys/arm/conf/AVILA
  head/sys/arm/conf/BWCT
  head/sys/arm/conf/CAMBRIA
  head/sys/arm/conf/CNS11XXNAS
  head/sys/arm/conf/CRB
  head/sys/arm/conf/DB-78XXX
  head/sys/arm/conf/DB-88F5XXX
  head/sys/arm/conf/DB-88F6XXX
  head/sys/arm/conf/DOCKSTAR
  head/sys/arm/conf/DREAMPLUG-1001
  head/sys/arm/conf/EA3250
  head/sys/arm/conf/EB9200
  head/sys/arm/conf/ETHERNUT5
  head/sys/arm/conf/EXYNOS5.common
  head/sys/arm/conf/GUMSTIX
  head/sys/arm/conf/HL200
  head/sys/arm/conf/HL201
  head/sys/arm/conf/KB920X
  head/sys/arm/conf/NSLU
  head/sys/arm/conf/QILA9G20
  head/sys/arm/conf/SAM9260EK
  head/sys/arm/conf/SAM9G20EK
  head/sys/arm/conf/SAM9X25EK
  head/sys/arm/conf/SHEEVAPLUG
  head/sys/arm/conf/SN9G45
  head/sys/arm/conf/TS7800
  head/sys/arm/conf/std.armv6
  head/sys/arm64/conf/GENERIC
  head/sys/conf/NOTES
  head/sys/conf/options
  head/sys/i386/conf/GENERIC
  head/sys/mips/conf/ADM5120
  head/sys/mips/conf/ALCHEMY
  head/sys/mips/conf/AR71XX_BASE
  head/sys/mips/conf/AR724X_BASE
  head/sys/mips/conf/BCM
  head/sys/mips/conf/BERI_TEMPLATE
  head/sys/mips/conf/ERL
  head/sys/mips/conf/GXEMUL
  head/sys/mips/conf/GXEMUL32
  head/sys/mips/conf/IDT
  head/sys/mips/conf/MT7620
  head/sys/mips/conf/OCTEON1
  head/sys/mips/conf/PB92
  head/sys/mips/conf/QCA953X_BASE
  head/sys/mips/conf/QEMU
  head/sys/mips/conf/RT305X
  head/sys/mips/conf/RT5350
  head/sys/mips/conf/SENTRY5
  head/sys/mips/conf/XLR
  head/sys/mips/conf/XLR64
  head/sys/mips/conf/XLRN32
  head/sys/mips/conf/std.AR5312
  head/sys/mips/conf/std.AR5315
  head/sys/mips/conf/std.AR91XX
  head/sys/mips/conf/std.AR933X
  head/sys/mips/conf/std.AR934X
  head/sys/mips/conf/std.MALTA
  head/sys/mips/conf/std.QCA955X
  head/sys/mips/conf/std.SWARM
  head/sys/mips/conf/std.XLP
  head/sys/modules/cc/Makefile
  head/sys/modules/khelp/Makefile
  head/sys/netinet/tcp_input.c
  head/sys/netinet/tcp_output.c
  head/sys/netinet/tcp_stacks/fastpath.c
  head/sys/netinet/tcp_subr.c
  head/sys/netinet/tcp_var.h
  head/sys/pc98/conf/GENERIC
  head/sys/powerpc/conf/GENERIC
  head/sys/powerpc/conf/GENERIC64
  head/sys/powerpc/conf/MPC85XX
  head/sys/riscv/conf/GENERIC
  head/sys/sparc64/conf/GENERIC

Modified: head/UPDATING
==============================================================================
--- head/UPDATING	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/UPDATING	Wed Oct 12 02:16:42 2016	(r307082)
@@ -31,6 +31,11 @@ NOTE TO PEOPLE WHO THINK THAT FreeBSD 12
 	disable the most expensive debugging functionality run
 	"ln -s 'abort:false,junk:false' /etc/malloc.conf".)
 
+20161008:
+	Use of the cc_cdg, cc_chd, cc_hd, or cc_vegas congestion control
+	modules now requires that the kernel configuration contain the
+	TCP_HHOOK option. (This option is included in the GENERIC kernel.)
+
 20161003:
 	The WITHOUT_ELFCOPY_AS_OBJCOPY src.conf(5) knob has been retired.
 	ELF Tool Chain's elfcopy is always installed as /usr/bin/objcopy.

Modified: head/sys/amd64/conf/GENERIC
==============================================================================
--- head/sys/amd64/conf/GENERIC	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/amd64/conf/GENERIC	Wed Oct 12 02:16:42 2016	(r307082)
@@ -30,6 +30,7 @@ options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
 options 	IPSEC			# IP (v4/v6) security
 options 	TCP_OFFLOAD		# TCP offload
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support

Modified: head/sys/arm/conf/ATMEL
==============================================================================
--- head/sys/arm/conf/ATMEL	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/ATMEL	Wed Oct 12 02:16:42 2016	(r307082)
@@ -35,6 +35,7 @@ options 	SCHED_4BSD		# 4BSD scheduler
 #options 	PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support

Modified: head/sys/arm/conf/AVILA
==============================================================================
--- head/sys/arm/conf/AVILA	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/AVILA	Wed Oct 12 02:16:42 2016	(r307082)
@@ -36,6 +36,7 @@ options 	DEVICE_POLLING
 
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	GEOM_PART_BSD		# BSD partition scheme
 options 	GEOM_PART_MBR		# MBR partition scheme
 options 	TMPFS			# Efficient memory filesystem

Modified: head/sys/arm/conf/BWCT
==============================================================================
--- head/sys/arm/conf/BWCT	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/BWCT	Wed Oct 12 02:16:42 2016	(r307082)
@@ -33,6 +33,7 @@ makeoptions	MODULES_OVERRIDE=""
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support
 #options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/CAMBRIA
==============================================================================
--- head/sys/arm/conf/CAMBRIA	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/CAMBRIA	Wed Oct 12 02:16:42 2016	(r307082)
@@ -37,6 +37,7 @@ options 	DEVICE_POLLING
 options 	SCHED_4BSD		# 4BSD scheduler
 #options 	PREEMPTION
 options 	INET			# InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	GEOM_PART_BSD		# BSD partition scheme
 options 	GEOM_PART_MBR		# MBR partition scheme
 options 	TMPFS			# Efficient memory filesystem

Modified: head/sys/arm/conf/CNS11XXNAS
==============================================================================
--- head/sys/arm/conf/CNS11XXNAS	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/CNS11XXNAS	Wed Oct 12 02:16:42 2016	(r307082)
@@ -46,6 +46,7 @@ options 	GEOM_LABEL		# Provides labeliza
 
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/CRB
==============================================================================
--- head/sys/arm/conf/CRB	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/CRB	Wed Oct 12 02:16:42 2016	(r307082)
@@ -34,6 +34,7 @@ options 	HZ=100
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/DB-78XXX
==============================================================================
--- head/sys/arm/conf/DB-78XXX	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/DB-78XXX	Wed Oct 12 02:16:42 2016	(r307082)
@@ -15,6 +15,7 @@ makeoptions	WERROR="-Werror"
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	GEOM_PART_BSD		# BSD partition scheme
 options 	GEOM_PART_MBR		# MBR partition scheme
 options 	TMPFS			# Efficient memory filesystem

Modified: head/sys/arm/conf/DB-88F5XXX
==============================================================================
--- head/sys/arm/conf/DB-88F5XXX	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/DB-88F5XXX	Wed Oct 12 02:16:42 2016	(r307082)
@@ -15,6 +15,7 @@ makeoptions	WERROR="-Werror"
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	GEOM_PART_BSD		# BSD partition scheme
 options 	GEOM_PART_MBR		# MBR partition scheme
 options 	TMPFS			# Efficient memory filesystem

Modified: head/sys/arm/conf/DB-88F6XXX
==============================================================================
--- head/sys/arm/conf/DB-88F6XXX	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/DB-88F6XXX	Wed Oct 12 02:16:42 2016	(r307082)
@@ -15,6 +15,7 @@ makeoptions	WERROR="-Werror"
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	NANDFS			# NAND Filesystem
 options 	NFSCL			# Network Filesystem Client

Modified: head/sys/arm/conf/DOCKSTAR
==============================================================================
--- head/sys/arm/conf/DOCKSTAR	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/DOCKSTAR	Wed Oct 12 02:16:42 2016	(r307082)
@@ -29,6 +29,7 @@ options 	SOC_MV_KIRKWOOD
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	NFSCL			# Network Filesystem Client

Modified: head/sys/arm/conf/DREAMPLUG-1001
==============================================================================
--- head/sys/arm/conf/DREAMPLUG-1001	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/DREAMPLUG-1001	Wed Oct 12 02:16:42 2016	(r307082)
@@ -32,6 +32,7 @@ options 	SOC_MV_KIRKWOOD
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	NFSCL			# Network Filesystem Client

Modified: head/sys/arm/conf/EA3250
==============================================================================
--- head/sys/arm/conf/EA3250	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/EA3250	Wed Oct 12 02:16:42 2016	(r307082)
@@ -16,6 +16,7 @@ makeoptions	WERROR="-Werror"
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	NFSCL			# Network Filesystem Client
 options 	NFSLOCKD		# Network Lock Manager

Modified: head/sys/arm/conf/EB9200
==============================================================================
--- head/sys/arm/conf/EB9200	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/EB9200	Wed Oct 12 02:16:42 2016	(r307082)
@@ -26,6 +26,7 @@ makeoptions	MODULES_OVERRIDE=""
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 #options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/ETHERNUT5
==============================================================================
--- head/sys/arm/conf/ETHERNUT5	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/ETHERNUT5	Wed Oct 12 02:16:42 2016	(r307082)
@@ -31,6 +31,7 @@ options 	SCHED_4BSD		# 4BSD scheduler
 #options 	PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 #options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support

Modified: head/sys/arm/conf/EXYNOS5.common
==============================================================================
--- head/sys/arm/conf/EXYNOS5.common	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/EXYNOS5.common	Wed Oct 12 02:16:42 2016	(r307082)
@@ -25,6 +25,7 @@ options 	SCHED_ULE		# ULE scheduler
 options 	PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support

Modified: head/sys/arm/conf/GUMSTIX
==============================================================================
--- head/sys/arm/conf/GUMSTIX	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/GUMSTIX	Wed Oct 12 02:16:42 2016	(r307082)
@@ -39,6 +39,7 @@ options 	HZ=100
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/HL200
==============================================================================
--- head/sys/arm/conf/HL200	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/HL200	Wed Oct 12 02:16:42 2016	(r307082)
@@ -31,6 +31,7 @@ makeoptions	MODULES_OVERRIDE=""
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 #options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/HL201
==============================================================================
--- head/sys/arm/conf/HL201	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/HL201	Wed Oct 12 02:16:42 2016	(r307082)
@@ -29,6 +29,7 @@ makeoptions	MODULES_OVERRIDE=""
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 #options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/KB920X
==============================================================================
--- head/sys/arm/conf/KB920X	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/KB920X	Wed Oct 12 02:16:42 2016	(r307082)
@@ -32,6 +32,7 @@ makeoptions	MODULES_OVERRIDE=""
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 #options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/NSLU
==============================================================================
--- head/sys/arm/conf/NSLU	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/NSLU	Wed Oct 12 02:16:42 2016	(r307082)
@@ -43,6 +43,7 @@ options 	DEVICE_POLLING
 options 	SCHED_ULE		# ULE scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/QILA9G20
==============================================================================
--- head/sys/arm/conf/QILA9G20	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/QILA9G20	Wed Oct 12 02:16:42 2016	(r307082)
@@ -32,6 +32,7 @@ makeoptions	MODULES_OVERRIDE=""
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 #options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/SAM9260EK
==============================================================================
--- head/sys/arm/conf/SAM9260EK	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/SAM9260EK	Wed Oct 12 02:16:42 2016	(r307082)
@@ -42,6 +42,7 @@ options 	SCHED_4BSD		# 4BSD scheduler
 #options 	PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 #options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support

Modified: head/sys/arm/conf/SAM9G20EK
==============================================================================
--- head/sys/arm/conf/SAM9G20EK	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/SAM9G20EK	Wed Oct 12 02:16:42 2016	(r307082)
@@ -38,6 +38,7 @@ makeoptions	MODULES_OVERRIDE=""
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	TMPFS			# Efficient memory filesystem
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support

Modified: head/sys/arm/conf/SAM9X25EK
==============================================================================
--- head/sys/arm/conf/SAM9X25EK	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/SAM9X25EK	Wed Oct 12 02:16:42 2016	(r307082)
@@ -31,6 +31,7 @@ makeoptions	MODULES_OVERRIDE=""
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 #options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/SHEEVAPLUG
==============================================================================
--- head/sys/arm/conf/SHEEVAPLUG	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/SHEEVAPLUG	Wed Oct 12 02:16:42 2016	(r307082)
@@ -17,6 +17,7 @@ options 	HZ=1000
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	NANDFS			# NAND Filesystem
 options 	NFSCL			# Network Filesystem Client

Modified: head/sys/arm/conf/SN9G45
==============================================================================
--- head/sys/arm/conf/SN9G45	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/SN9G45	Wed Oct 12 02:16:42 2016	(r307082)
@@ -31,6 +31,7 @@ makeoptions	MODULES_OVERRIDE=""
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 #options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 #options 	UFS_ACL			# Support for access control lists

Modified: head/sys/arm/conf/TS7800
==============================================================================
--- head/sys/arm/conf/TS7800	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/TS7800	Wed Oct 12 02:16:42 2016	(r307082)
@@ -15,6 +15,7 @@ makeoptions	WERROR="-Werror"
 options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	NFSCL			# Network Filesystem Client

Modified: head/sys/arm/conf/std.armv6
==============================================================================
--- head/sys/arm/conf/std.armv6	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm/conf/std.armv6	Wed Oct 12 02:16:42 2016	(r307082)
@@ -7,6 +7,7 @@ options 	ARM_L2_PIPT		# Only L2 PIPT is 
 options 	PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	IPSEC			# IP (v4/v6) security
 options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem

Modified: head/sys/arm64/conf/GENERIC
==============================================================================
--- head/sys/arm64/conf/GENERIC	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/arm64/conf/GENERIC	Wed Oct 12 02:16:42 2016	(r307082)
@@ -29,6 +29,7 @@ options 	PREEMPTION		# Enable kernel thr
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
 options 	IPSEC			# IP (v4/v6) security
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	TCP_OFFLOAD		# TCP offload
 options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem

Modified: head/sys/conf/NOTES
==============================================================================
--- head/sys/conf/NOTES	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/conf/NOTES	Wed Oct 12 02:16:42 2016	(r307082)
@@ -982,6 +982,8 @@ device		lagg
 # TCPPCAP enables code which keeps the last n packets sent and received
 # on a TCP socket.
 #
+# TCP_HHOOK enables the hhook(9) framework hooks for the TCP stack.
+#
 # RADIX_MPATH provides support for equal-cost multi-path routing.
 #
 options 	MROUTING		# Multicast routing
@@ -1001,6 +1003,7 @@ options 	IPSTEALTH		#support for stealth
 options 	PF_DEFAULT_TO_DROP	#drop everything by default
 options 	TCPDEBUG
 options 	TCPPCAP
+options 	TCP_HHOOK
 options 	RADIX_MPATH
 
 # The MBUF_STRESS_TEST option enables options which create

Modified: head/sys/conf/options
==============================================================================
--- head/sys/conf/options	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/conf/options	Wed Oct 12 02:16:42 2016	(r307082)
@@ -443,6 +443,7 @@ SLIP_IFF_OPTS		opt_slip.h
 TCPDEBUG
 TCPPCAP		opt_global.h
 SIFTR
+TCP_HHOOK		opt_inet.h
 TCP_OFFLOAD		opt_inet.h # Enable code to dispatch TCP offloading
 TCP_RFC7413		opt_inet.h
 TCP_RFC7413_MAX_KEYS	opt_inet.h

Modified: head/sys/i386/conf/GENERIC
==============================================================================
--- head/sys/i386/conf/GENERIC	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/i386/conf/GENERIC	Wed Oct 12 02:16:42 2016	(r307082)
@@ -31,6 +31,7 @@ options 	PREEMPTION		# Enable kernel thr
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
 options 	IPSEC			# IP (v4/v6) security
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	TCP_OFFLOAD		# TCP offload
 options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem

Modified: head/sys/mips/conf/ADM5120
==============================================================================
--- head/sys/mips/conf/ADM5120	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/ADM5120	Wed Oct 12 02:16:42 2016	(r307082)
@@ -33,6 +33,7 @@ options 	KDB
 
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	NFSCL			#Network Filesystem Client
 options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/ALCHEMY
==============================================================================
--- head/sys/mips/conf/ALCHEMY	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/ALCHEMY	Wed Oct 12 02:16:42 2016	(r307082)
@@ -33,6 +33,7 @@ options 	KDB
 
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	NFSCL			#Network Filesystem Client
 options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/AR71XX_BASE
==============================================================================
--- head/sys/mips/conf/AR71XX_BASE	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/AR71XX_BASE	Wed Oct 12 02:16:42 2016	(r307082)
@@ -35,6 +35,7 @@ options 	KDB
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
 options 	INET6			# IPv6
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 
 # options 	NFSCL		#Network Filesystem Client
 

Modified: head/sys/mips/conf/AR724X_BASE
==============================================================================
--- head/sys/mips/conf/AR724X_BASE	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/AR724X_BASE	Wed Oct 12 02:16:42 2016	(r307082)
@@ -36,6 +36,7 @@ options 	KDB
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
 #options 	INET6			# IPv6
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 #options 	NFSCL			#Network Filesystem Client
 options 	PSEUDOFS		#Pseudo-filesystem framework
 options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions

Modified: head/sys/mips/conf/BCM
==============================================================================
--- head/sys/mips/conf/BCM	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/BCM	Wed Oct 12 02:16:42 2016	(r307082)
@@ -28,6 +28,7 @@ options 	KDB
 
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	NFSCL			#Network Filesystem Client
 #options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/BERI_TEMPLATE
==============================================================================
--- head/sys/mips/conf/BERI_TEMPLATE	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/BERI_TEMPLATE	Wed Oct 12 02:16:42 2016	(r307082)
@@ -39,6 +39,7 @@ options 	FFS			#Berkeley Fast Filesystem
 
 options 	INET
 options 	INET6
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	KGSSAPI
 options 	NFSCL
 options 	NFSLOCKD

Modified: head/sys/mips/conf/ERL
==============================================================================
--- head/sys/mips/conf/ERL	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/ERL	Wed Oct 12 02:16:42 2016	(r307082)
@@ -55,6 +55,7 @@ options 	SCHED_ULE		# ULE scheduler
 options 	PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support

Modified: head/sys/mips/conf/GXEMUL
==============================================================================
--- head/sys/mips/conf/GXEMUL	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/GXEMUL	Wed Oct 12 02:16:42 2016	(r307082)
@@ -32,6 +32,7 @@ options 	SMP			# Symmetric MultiProcesso
 options 	SCHED_ULE
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 
 options 	FFS			#Berkeley Fast Filesystem
 

Modified: head/sys/mips/conf/GXEMUL32
==============================================================================
--- head/sys/mips/conf/GXEMUL32	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/GXEMUL32	Wed Oct 12 02:16:42 2016	(r307082)
@@ -30,6 +30,7 @@ options 	SMP			# Symmetric MultiProcesso
 options 	SCHED_ULE
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 
 options 	FFS			#Berkeley Fast Filesystem
 

Modified: head/sys/mips/conf/IDT
==============================================================================
--- head/sys/mips/conf/IDT	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/IDT	Wed Oct 12 02:16:42 2016	(r307082)
@@ -16,6 +16,7 @@ options 	KDB
 
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	NFSCL			#Network Filesystem Client
 options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/MT7620
==============================================================================
--- head/sys/mips/conf/MT7620	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/MT7620	Wed Oct 12 02:16:42 2016	(r307082)
@@ -54,6 +54,7 @@ options 	SCHED_ULE
 #options 	SCHED_4BSD		#4BSD scheduler
 #options 	COMPAT_43
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	NFSCL			#Network Filesystem Client
 options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/OCTEON1
==============================================================================
--- head/sys/mips/conf/OCTEON1	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/OCTEON1	Wed Oct 12 02:16:42 2016	(r307082)
@@ -54,6 +54,7 @@ options 	SCHED_ULE		# ULE scheduler
 options 	PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support

Modified: head/sys/mips/conf/PB92
==============================================================================
--- head/sys/mips/conf/PB92	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/PB92	Wed Oct 12 02:16:42 2016	(r307082)
@@ -37,6 +37,7 @@ options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
 # Can't do IPv6 - it just doesn't fit.
 # options 	INET6
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 # options 	NFSCL			#Network Filesystem Client
 options 	PSEUDOFS		#Pseudo-filesystem framework
 options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions

Modified: head/sys/mips/conf/QCA953X_BASE
==============================================================================
--- head/sys/mips/conf/QCA953X_BASE	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/QCA953X_BASE	Wed Oct 12 02:16:42 2016	(r307082)
@@ -31,6 +31,7 @@ options 	ALT_BREAK_TO_DEBUGGER
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
 #options 	INET6			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 #options 	NFSCL			#Network Filesystem Client
 options 	PSEUDOFS		#Pseudo-filesystem framework
 options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions

Modified: head/sys/mips/conf/QEMU
==============================================================================
--- head/sys/mips/conf/QEMU	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/QEMU	Wed Oct 12 02:16:42 2016	(r307082)
@@ -32,6 +32,7 @@ options 	KDB
 
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	NFSCL			#Network Filesystem Client
 options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/RT305X
==============================================================================
--- head/sys/mips/conf/RT305X	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/RT305X	Wed Oct 12 02:16:42 2016	(r307082)
@@ -53,6 +53,7 @@ options 	SCHED_ULE
 #options 	SCHED_4BSD		#4BSD scheduler
 #options 	COMPAT_43
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	NFSCL			#Network Filesystem Client
 options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/RT5350
==============================================================================
--- head/sys/mips/conf/RT5350	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/RT5350	Wed Oct 12 02:16:42 2016	(r307082)
@@ -51,6 +51,7 @@ options 	KDB
 
 options 	SCHED_ULE
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 #options 	NFSCL			#Network Filesystem Client
 #options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/SENTRY5
==============================================================================
--- head/sys/mips/conf/SENTRY5	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/SENTRY5	Wed Oct 12 02:16:42 2016	(r307082)
@@ -44,6 +44,7 @@ options 	KDB
 
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	NFSCL			#Network Filesystem Client
 options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/XLR
==============================================================================
--- head/sys/mips/conf/XLR	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/XLR	Wed Oct 12 02:16:42 2016	(r307082)
@@ -62,6 +62,7 @@ options 	PREEMPTION		# Enable kernel thr
 #options 	FULL_PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	UFS_ACL			# Support for access control lists

Modified: head/sys/mips/conf/XLR64
==============================================================================
--- head/sys/mips/conf/XLR64	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/XLR64	Wed Oct 12 02:16:42 2016	(r307082)
@@ -36,6 +36,7 @@ options 	SMP
 #options 	FULL_PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	UFS_ACL			# Support for access control lists

Modified: head/sys/mips/conf/XLRN32
==============================================================================
--- head/sys/mips/conf/XLRN32	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/XLRN32	Wed Oct 12 02:16:42 2016	(r307082)
@@ -36,6 +36,7 @@ options 	PREEMPTION		# Enable kernel thr
 #options 	FULL_PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	UFS_ACL			# Support for access control lists

Modified: head/sys/mips/conf/std.AR5312
==============================================================================
--- head/sys/mips/conf/std.AR5312	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/std.AR5312	Wed Oct 12 02:16:42 2016	(r307082)
@@ -34,6 +34,7 @@ options 	KDB
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
 options 	INET6			# IPv6
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 
 # options 	NFSCL		#Network Filesystem Client
 

Modified: head/sys/mips/conf/std.AR5315
==============================================================================
--- head/sys/mips/conf/std.AR5315	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/std.AR5315	Wed Oct 12 02:16:42 2016	(r307082)
@@ -33,6 +33,7 @@ options 	KDB
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
 options 	INET6			# IPv6
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 
 # options 	NFSCL		#Network Filesystem Client
 

Modified: head/sys/mips/conf/std.AR91XX
==============================================================================
--- head/sys/mips/conf/std.AR91XX	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/std.AR91XX	Wed Oct 12 02:16:42 2016	(r307082)
@@ -32,6 +32,7 @@ options 	VM_KMEM_SIZE_SCALE=1
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
 options 	INET6			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 #options 	NFSCL			#Network Filesystem Client
 options 	PSEUDOFS		#Pseudo-filesystem framework
 options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions

Modified: head/sys/mips/conf/std.AR933X
==============================================================================
--- head/sys/mips/conf/std.AR933X	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/std.AR933X	Wed Oct 12 02:16:42 2016	(r307082)
@@ -30,6 +30,7 @@ options         ALT_BREAK_TO_DEBUGGER
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
 #options 	INET6			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 #options 	NFSCL			#Network Filesystem Client
 options 	PSEUDOFS		#Pseudo-filesystem framework
 options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions

Modified: head/sys/mips/conf/std.AR934X
==============================================================================
--- head/sys/mips/conf/std.AR934X	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/std.AR934X	Wed Oct 12 02:16:42 2016	(r307082)
@@ -31,6 +31,7 @@ options 	ALQ
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
 #options 	INET6			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 #options 	NFSCL			#Network Filesystem Client
 options 	PSEUDOFS		#Pseudo-filesystem framework
 options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions

Modified: head/sys/mips/conf/std.MALTA
==============================================================================
--- head/sys/mips/conf/std.MALTA	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/std.MALTA	Wed Oct 12 02:16:42 2016	(r307082)
@@ -21,6 +21,7 @@ options 	KDB
 
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	NFSCL			#Network Filesystem Client
 options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/std.QCA955X
==============================================================================
--- head/sys/mips/conf/std.QCA955X	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/std.QCA955X	Wed Oct 12 02:16:42 2016	(r307082)
@@ -35,6 +35,7 @@ options 	ALQ
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
 #options 	INET6			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 #options 	NFSCL			#Network Filesystem Client
 options 	PSEUDOFS		#Pseudo-filesystem framework
 options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions

Modified: head/sys/mips/conf/std.SWARM
==============================================================================
--- head/sys/mips/conf/std.SWARM	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/std.SWARM	Wed Oct 12 02:16:42 2016	(r307082)
@@ -20,6 +20,7 @@ options 	KDB
 
 options 	SCHED_4BSD		#4BSD scheduler
 options 	INET			#InterNETworking
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	NFSCL			#Network Filesystem Client
 options 	NFS_ROOT		#NFS usable as /, requires NFSCL
 options 	PSEUDOFS		#Pseudo-filesystem framework

Modified: head/sys/mips/conf/std.XLP
==============================================================================
--- head/sys/mips/conf/std.XLP	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/mips/conf/std.XLP	Wed Oct 12 02:16:42 2016	(r307082)
@@ -15,6 +15,7 @@ options 	PREEMPTION		# Enable kernel thr
 #options 	FULL_PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	FFS			# Berkeley Fast Filesystem
 #options 	SOFTUPDATES		# Enable FFS soft updates support
 options 	UFS_ACL			# Support for access control lists

Modified: head/sys/modules/cc/Makefile
==============================================================================
--- head/sys/modules/cc/Makefile	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/modules/cc/Makefile	Wed Oct 12 02:16:42 2016	(r307082)
@@ -1,11 +1,20 @@
 # $FreeBSD$
 
-SUBDIR=	cc_cdg \
-	cc_chd \
-	cc_cubic \
+SUBDIR=	cc_cubic \
 	cc_dctcp \
+	cc_htcp
+
+
+# Do we have the TCP_HHOOK symbol defined? If not, there is no point in
+# building these modules by default.
+# We will default to building these modules unless $OPT_INET is defined
+# and does not contain the TCP_HHOOK option.
+.if defined(ALL_MODULES) || ${OPT_INET:UTCP_HHOOK:MTCP_HHOOK} != ""
+SUBDIR+= \
+	cc_cdg \
+	cc_chd \
 	cc_hd \
-	cc_htcp \
 	cc_vegas
+.endif
 
 .include <bsd.subdir.mk>

Modified: head/sys/modules/khelp/Makefile
==============================================================================
--- head/sys/modules/khelp/Makefile	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/modules/khelp/Makefile	Wed Oct 12 02:16:42 2016	(r307082)
@@ -1,5 +1,13 @@
 # $FreeBSD$
 
-SUBDIR=	h_ertt
+SUBDIR=	
+
+# Do we have the TCP_HHOOK symbol defined? If not, there is no point in
+# building this modules by default.
+# We will default to building this module unless $OPT_INET is defined
+# and does not contain the TCP_HHOOK option.
+.if defined(ALL_MODULES) || ${OPT_INET:UTCP_HHOOK:MTCP_HHOOK} != ""
+SUBDIR+=	h_ertt
+.endif
 
 .include <bsd.subdir.mk>

Modified: head/sys/netinet/tcp_input.c
==============================================================================
--- head/sys/netinet/tcp_input.c	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/netinet/tcp_input.c	Wed Oct 12 02:16:42 2016	(r307082)
@@ -57,7 +57,9 @@ __FBSDID("$FreeBSD$");
 
 #include <sys/param.h>
 #include <sys/kernel.h>
+#ifdef TCP_HHOOK
 #include <sys/hhook.h>
+#endif
 #include <sys/malloc.h>
 #include <sys/mbuf.h>
 #include <sys/proc.h>		/* for proc0 declaration */
@@ -278,6 +280,7 @@ kmod_tcpstat_inc(int statnum)
 	counter_u64_add(VNET(tcpstat)[statnum], 1);
 }
 
+#ifdef TCP_HHOOK
 /*
  * Wrapper for the TCP established input helper hook.
  */
@@ -295,6 +298,7 @@ hhook_run_tcp_est_in(struct tcpcb *tp, s
 		    tp->osd);
 	}
 }
+#endif
 
 /*
  * CC wrapper hook functions
@@ -1753,8 +1757,10 @@ tcp_do_segment(struct mbuf *m, struct tc
 				}
 				acked = BYTES_THIS_ACK(tp, th);
 
+#ifdef TCP_HHOOK
 				/* Run HHOOK_TCP_ESTABLISHED_IN helper hooks. */
 				hhook_run_tcp_est_in(tp, th, &to);
+#endif
 
 				TCPSTAT_ADD(tcps_rcvackpack, nsegs);
 				TCPSTAT_ADD(tcps_rcvackbyte, acked);
@@ -2499,8 +2505,10 @@ tcp_do_segment(struct mbuf *m, struct tc
 			 */
 			tp->sackhint.sacked_bytes = 0;
 
+#ifdef TCP_HHOOK
 		/* Run HHOOK_TCP_ESTABLISHED_IN helper hooks. */
 		hhook_run_tcp_est_in(tp, th, &to);
+#endif
 
 		if (SEQ_LEQ(th->th_ack, tp->snd_una)) {
 			u_int maxseg;

Modified: head/sys/netinet/tcp_output.c
==============================================================================
--- head/sys/netinet/tcp_output.c	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/netinet/tcp_output.c	Wed Oct 12 02:16:42 2016	(r307082)
@@ -40,7 +40,9 @@ __FBSDID("$FreeBSD$");
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/domain.h>
+#ifdef TCP_HHOOK
 #include <sys/hhook.h>
+#endif
 #include <sys/kernel.h>
 #include <sys/lock.h>
 #include <sys/mbuf.h>
@@ -140,11 +142,14 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, send
 	    tcp_timer_active((tp), TT_PERSIST),				\
 	    ("neither rexmt nor persist timer is set"))
 
+#ifdef TCP_HHOOK
 static void inline	hhook_run_tcp_est_out(struct tcpcb *tp,
 			    struct tcphdr *th, struct tcpopt *to,
 			    uint32_t len, int tso);
+#endif
 static void inline	cc_after_idle(struct tcpcb *tp);
 
+#ifdef TCP_HHOOK
 /*
  * Wrapper for the TCP established output helper hook.
  */
@@ -165,6 +170,7 @@ hhook_run_tcp_est_out(struct tcpcb *tp, 
 		    tp->osd);
 	}
 }
+#endif
 
 /*
  * CC wrapper hook functions
@@ -1306,8 +1312,10 @@ send:
 	    __func__, len, hdrlen, ipoptlen, m_length(m, NULL)));
 #endif
 
+#ifdef TCP_HHOOK
 	/* Run HHOOK_TCP_ESTABLISHED_OUT helper hooks. */
 	hhook_run_tcp_est_out(tp, th, &to, len, tso);
+#endif
 
 #ifdef TCPDEBUG
 	/*

Modified: head/sys/netinet/tcp_stacks/fastpath.c
==============================================================================
--- head/sys/netinet/tcp_stacks/fastpath.c	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/netinet/tcp_stacks/fastpath.c	Wed Oct 12 02:16:42 2016	(r307082)
@@ -62,7 +62,9 @@ __FBSDID("$FreeBSD$");
 #include <sys/param.h>
 #include <sys/module.h>
 #include <sys/kernel.h>
+#ifdef TCP_HHOOK
 #include <sys/hhook.h>
+#endif
 #include <sys/malloc.h>
 #include <sys/mbuf.h>
 #include <sys/proc.h>		/* for proc0 declaration */
@@ -266,8 +268,10 @@ tcp_do_fastack(struct mbuf *m, struct tc
 	if (winup_only == 0) {
 		acked = BYTES_THIS_ACK(tp, th);
 
+#ifdef TCP_HHOOK
 		/* Run HHOOK_TCP_ESTABLISHED_IN helper hooks. */
 		hhook_run_tcp_est_in(tp, th, to);
+#endif
 
 		TCPSTAT_ADD(tcps_rcvackbyte, acked);
 		sbdrop(&so->so_snd, acked);
@@ -1040,8 +1044,10 @@ tcp_do_slowpath(struct mbuf *m, struct t
 			 */
 			tp->sackhint.sacked_bytes = 0;
 
+#ifdef TCP_HHOOK
 		/* Run HHOOK_TCP_ESTABLISHED_IN helper hooks. */
 		hhook_run_tcp_est_in(tp, th, to);
+#endif
 
 		if (SEQ_LEQ(th->th_ack, tp->snd_una)) {
 			if (tlen == 0 && tiwin == tp->snd_wnd) {
@@ -2127,8 +2133,10 @@ tcp_fastack(struct mbuf *m, struct tcphd
 	if (winup_only == 0) {
 		acked = BYTES_THIS_ACK(tp, th);
 
+#ifdef TCP_HHOOK
 		/* Run HHOOK_TCP_ESTABLISHED_IN helper hooks. */
 		hhook_run_tcp_est_in(tp, th, to);
+#endif
 
 		TCPSTAT_ADD(tcps_rcvackbyte, acked);
 		sbdrop(&so->so_snd, acked);

Modified: head/sys/netinet/tcp_subr.c
==============================================================================
--- head/sys/netinet/tcp_subr.c	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/netinet/tcp_subr.c	Wed Oct 12 02:16:42 2016	(r307082)
@@ -42,9 +42,13 @@ __FBSDID("$FreeBSD$");
 #include <sys/systm.h>
 #include <sys/callout.h>
 #include <sys/eventhandler.h>
+#ifdef TCP_HHOOK
 #include <sys/hhook.h>
+#endif
 #include <sys/kernel.h>
+#ifdef TCP_HHOOK
 #include <sys/khelp.h>
+#endif
 #include <sys/sysctl.h>
 #include <sys/jail.h>
 #include <sys/malloc.h>
@@ -238,7 +242,9 @@ SYSCTL_INT(_net_inet_tcp, OID_AUTO, sign
 VNET_DEFINE(uma_zone_t, sack_hole_zone);
 #define	V_sack_hole_zone		VNET(sack_hole_zone)
 
+#ifdef TCP_HHOOK
 VNET_DEFINE(struct hhook_head *, tcp_hhh[HHOOK_TCP_LAST+1]);
+#endif
 
 static struct inpcb *tcp_notify(struct inpcb *, int);
 static struct inpcb *tcp_mtudisc_notify(struct inpcb *, int);
@@ -449,7 +455,9 @@ struct tcpcb_mem {
 	struct	tcpcb		tcb;
 	struct	tcp_timer	tt;
 	struct	cc_var		ccv;
+#ifdef TCP_HHOOK
 	struct	osd		osd;
+#endif
 };
 
 static VNET_DEFINE(uma_zone_t, tcpcb_zone);
@@ -605,12 +613,14 @@ tcp_init(void)
 
 	tcbhash_tuneable = "net.inet.tcp.tcbhashsize";
 
+#ifdef TCP_HHOOK
 	if (hhook_head_register(HHOOK_TYPE_TCP, HHOOK_TCP_EST_IN,
 	    &V_tcp_hhh[HHOOK_TCP_EST_IN], HHOOK_NOWAIT|HHOOK_HEADISINVNET) != 0)
 		printf("%s: WARNING: unable to register helper hook\n", __func__);
 	if (hhook_head_register(HHOOK_TYPE_TCP, HHOOK_TCP_EST_OUT,
 	    &V_tcp_hhh[HHOOK_TCP_EST_OUT], HHOOK_NOWAIT|HHOOK_HEADISINVNET) != 0)
 		printf("%s: WARNING: unable to register helper hook\n", __func__);
+#endif
 	hashsize = TCBHASHSIZE;
 	TUNABLE_INT_FETCH(tcbhash_tuneable, &hashsize);
 	if (hashsize == 0) {
@@ -763,6 +773,7 @@ tcp_destroy(void *unused __unused)
 	tcp_fastopen_destroy();
 #endif
 
+#ifdef TCP_HHOOK
 	error = hhook_head_deregister(V_tcp_hhh[HHOOK_TCP_EST_IN]);
 	if (error != 0) {
 		printf("%s: WARNING: unable to deregister helper hook "
@@ -775,6 +786,7 @@ tcp_destroy(void *unused __unused)
 		    "type=%d, id=%d: error %d returned\n", __func__,
 		    HHOOK_TYPE_TCP, HHOOK_TCP_EST_OUT, error);
 	}
+#endif
 }
 VNET_SYSUNINIT(tcp, SI_SUB_PROTO_DOMAIN, SI_ORDER_FOURTH, tcp_destroy, NULL);
 #endif
@@ -1204,6 +1216,7 @@ tcp_newtcpcb(struct inpcb *inp)
 			return (NULL);
 		}
 
+#ifdef TCP_HHOOK
 	tp->osd = &tm->osd;
 	if (khelp_init_osd(HELPER_CLASS_TCP, tp->osd)) {
 		if (tp->t_fb->tfb_tcp_fb_fini)
@@ -1212,6 +1225,7 @@ tcp_newtcpcb(struct inpcb *inp)
 		uma_zfree(V_tcpcb_zone, tm);
 		return (NULL);
 	}
+#endif
 
 #ifdef VIMAGE
 	tp->t_vnet = inp->inp_vnet;
@@ -1477,7 +1491,9 @@ tcp_discardcb(struct tcpcb *tp)
 	if (CC_ALGO(tp)->cb_destroy != NULL)
 		CC_ALGO(tp)->cb_destroy(tp->ccv);
 
+#ifdef TCP_HHOOK
 	khelp_destroy_osd(tp->osd);
+#endif
 
 	CC_ALGO(tp) = NULL;
 	inp->inp_ppcb = NULL;

Modified: head/sys/netinet/tcp_var.h
==============================================================================
--- head/sys/netinet/tcp_var.h	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/netinet/tcp_var.h	Wed Oct 12 02:16:42 2016	(r307082)
@@ -749,8 +749,10 @@ VNET_DECLARE(int, tcp_ecn_maxretries);
 #define	V_tcp_do_ecn		VNET(tcp_do_ecn)
 #define	V_tcp_ecn_maxretries	VNET(tcp_ecn_maxretries)
 
+#ifdef TCP_HHOOK
 VNET_DECLARE(struct hhook_head *, tcp_hhh[HHOOK_TCP_LAST + 1]);
 #define	V_tcp_hhh		VNET(tcp_hhh)
+#endif
 
 VNET_DECLARE(int, tcp_do_rfc6675_pipe);
 #define V_tcp_do_rfc6675_pipe	VNET(tcp_do_rfc6675_pipe)
@@ -788,8 +790,10 @@ void	cc_ack_received(struct tcpcb *tp, s
 void 	cc_conn_init(struct tcpcb *tp);
 void 	cc_post_recovery(struct tcpcb *tp, struct tcphdr *th);
 void	cc_cong_signal(struct tcpcb *tp, struct tcphdr *th, uint32_t type);
+#ifdef TCP_HHOOK
 void	hhook_run_tcp_est_in(struct tcpcb *tp,
 			    struct tcphdr *th, struct tcpopt *to);
+#endif
 
 int	 tcp_input(struct mbuf **, int *, int);
 void	 tcp_do_segment(struct mbuf *, struct tcphdr *,

Modified: head/sys/pc98/conf/GENERIC
==============================================================================
--- head/sys/pc98/conf/GENERIC	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/pc98/conf/GENERIC	Wed Oct 12 02:16:42 2016	(r307082)
@@ -30,6 +30,7 @@ options 	SCHED_4BSD		# 4BSD scheduler
 options 	INET			# InterNETworking
 options 	INET6			# IPv6 communications protocols
 options 	IPSEC			# IP (v4/v6) security
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	SCTP			# Stream Control Transmission Protocol
 options 	FFS			# Berkeley Fast Filesystem
 options 	SOFTUPDATES		# Enable FFS soft updates support

Modified: head/sys/powerpc/conf/GENERIC
==============================================================================
--- head/sys/powerpc/conf/GENERIC	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/powerpc/conf/GENERIC	Wed Oct 12 02:16:42 2016	(r307082)
@@ -38,6 +38,7 @@ options 	PREEMPTION		#Enable kernel thre
 options 	INET			#InterNETworking
 options 	INET6			#IPv6 communications protocols
 options 	IPSEC			# IP (v4/v6) security
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	SCTP			#Stream Control Transmission Protocol
 options 	FFS			#Berkeley Fast Filesystem
 options 	SOFTUPDATES		#Enable FFS soft updates support

Modified: head/sys/powerpc/conf/GENERIC64
==============================================================================
--- head/sys/powerpc/conf/GENERIC64	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/powerpc/conf/GENERIC64	Wed Oct 12 02:16:42 2016	(r307082)
@@ -37,6 +37,7 @@ options 	SCHED_ULE		#ULE scheduler
 options 	PREEMPTION		#Enable kernel thread preemption
 options 	INET			#InterNETworking
 options 	INET6			#IPv6 communications protocols
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	SCTP			#Stream Control Transmission Protocol
 options 	FFS			#Berkeley Fast Filesystem
 options 	SOFTUPDATES		#Enable FFS soft updates support

Modified: head/sys/powerpc/conf/MPC85XX
==============================================================================
--- head/sys/powerpc/conf/MPC85XX	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/powerpc/conf/MPC85XX	Wed Oct 12 02:16:42 2016	(r307082)
@@ -36,6 +36,7 @@ options 	GDB
 options 	GEOM_PART_GPT
 options 	INET
 options 	INET6
+options 	TCP_HHOOK		# hhook(9) framework for TCP
 options 	INVARIANTS
 options 	INVARIANT_SUPPORT
 options 	KDB

Modified: head/sys/riscv/conf/GENERIC
==============================================================================
--- head/sys/riscv/conf/GENERIC	Wed Oct 12 02:15:06 2016	(r307081)
+++ head/sys/riscv/conf/GENERIC	Wed Oct 12 02:16:42 2016	(r307082)
@@ -32,6 +32,7 @@ options 	SCHED_ULE		# ULE scheduler
 options 	PREEMPTION		# Enable kernel thread preemption
 options 	INET			# InterNETworking

*** DIFF OUTPUT TRUNCATED AT 1000 LINES ***



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