OpenSSH

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Patch for login with eID

Inspired from http://simi.be/?page_id=9

Getting the patch from http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=355274 and porting it to v4.7p1
Some rejs easy to solve from v4.2 to v4.7 and one less obvious change in debian/control: fix the debconf dependancies (was ${debconf:Depends} I think):

Package: openssh-client-sc                                                          
Architecture: any                                                                   
Depends: ${shlibs:Depends}, debconf (>= 1.2.0) | debconf-2.0,...


I recompile ssh with smartcard support.

apt-get source openssh-client
cd openssh-4.7p1
patch -p1 < ../mypatch
dpkg-buildpackage -uc -us -rfakeroot

Sending my public key to the ssh server:

pkcs15-tool --read-ssh-key 2 |tail -n1|ssh user@host 'cat - >> ~/.ssh/authorized_keys'

Then logging, being prompted for my PIN:

ssh -I 0 user@host.com

Here is the patch:

diff -Naur openssh-4.7p1.orig/debian/control openssh-4.7p1/debian/control
--- openssh-4.7p1.orig/debian/control	2008-02-05 01:27:54.000000000 +0100
+++ openssh-4.7p1/debian/control	2008-02-05 01:26:10.000000000 +0100
@@ -2,15 +2,15 @@
 Section: net
 Priority: standard
 Maintainer: Debian OpenSSH Maintainers <debian-ssh@lists.debian.org>
-Build-Depends: libwrap0-dev | libwrap-dev, zlib1g-dev (>= 1:1.2.3-1), libssl-dev (>= 0.9.8-1), libpam0g-dev | libpam-dev, libgtk2.0-dev, libedit-dev, debhelper (>= 5.0.22), sharutils, libselinux1-dev [alpha amd64 arm armeb armel hppa i386 ia64 lpia m68k mips mipsel powerpc ppc64 s390 sparc], libkrb5-dev
+Build-Depends: libwrap0-dev | libwrap-dev, zlib1g-dev (>= 1:1.2.3-1), libssl-dev (>= 0.9.8-1), libpam0g-dev | libpam-dev, libgtk2.0-dev, libedit-dev, debhelper (>= 5.0.22), sharutils, libselinux1-dev [alpha amd64 arm armeb armel hppa i386 ia64 lpia m68k mips mipsel powerpc ppc64 s390 sparc], libkrb5-dev, libopensc2-dev
 Standards-Version: 3.7.3
 Uploaders: Colin Watson <cjwatson@debian.org>, Matthew Vernon <matthew@debian.org>
 
 Package: openssh-client
 Architecture: any
 Depends: ${shlibs:Depends}, debconf (>= 1.2.0) | debconf-2.0, adduser (>= 3.10), dpkg (>= 1.7.0), passwd
-Conflicts: ssh (<< 1:3.8.1p1-9), sftp, rsh-client (<<0.16.1-1), ssh-krb5 (<< 1:4.3p2-7)
-Replaces: ssh, ssh-krb5
+Conflicts: ssh (<< 1:3.8.1p1-9), sftp, rsh-client (<<0.16.1-1), ssh-krb5 (<< 1:4.3p2-7), openssh-client-sc
+Replaces: ssh, ssh-krb5, openssh-client-sc
 Suggests: ssh-askpass, xbase-clients, libpam-ssh, keychain
 Provides: rsh-client, ssh-client
 Description: secure shell client, an rlogin/rsh/rcp replacement
@@ -33,10 +33,37 @@
  In some countries it may be illegal to use any encryption at all
  without a special permit.
 
+Package: openssh-client-sc
+Architecture: any
+Depends: ${shlibs:Depends}, debconf (>= 1.2.0) | debconf-2.0, adduser (>= 3.10), dpkg (>= 1.7.0)
+Conflicts: ssh (<< 1:3.8.1p1-9), sftp, rsh-client (<<0.16.1-1), ssh-krb5, openssh-client
+Replaces: ssh (<< 1:3.8.1p1-9), ssh-krb5, openssh-client
+Suggests: ssh-askpass, xbase-clients
+Provides: rsh-client, ssh-client, openssh-client
+Description: Secure shell client, an rlogin/rsh/rcp replacement with smartcard support
+ This is the portable version of OpenSSH, a free implementation of
+ the Secure Shell protocol as specified by the IETF secsh working
+ group.
+ .
+ Ssh (Secure Shell) is a program for logging into a remote machine
+ and for executing commands on a remote machine.
+ It provides secure encrypted communications between two untrusted
+ hosts over an insecure network.  X11 connections and arbitrary TCP/IP
+ ports can also be forwarded over the secure channel.
+ It is intended as a replacement for rlogin, rsh and rcp, and can be
+ used to provide applications with a secure communication channel.
+ .
+ This package provides the ssh, scp and sftp clients, the ssh-agent
+ and ssh-add programs to make public key authentication more convenient,
+ and the ssh-keygen, ssh-keyscan, ssh-copy-id and ssh-argv0 utilities.
+ .
+ In some countries it may be illegal to use any encryption at all
+ without a special permit.
+                                                                                                                                                                     
 Package: openssh-server
 Priority: optional
 Architecture: any
-Depends: ${shlibs:Depends}, debconf (>= 1.2.0) | debconf-2.0, libpam-runtime (>= 0.76-14), libpam-modules (>= 0.72-9), adduser (>= 3.9), dpkg (>= 1.9.0), openssh-client (= ${binary:Version}), lsb-base (>= 3.0-6)
+Depends: ${shlibs:Depends}, debconf (>= 1.2.0) | debconf-2.0, libpam-runtime (>= 0.76-14), libpam-modules (>= 0.72-9), adduser (>= 3.9), dpkg (>= 1.9.0), openssh-client (= ${binary:Version}) | openssh-client-sc (= ${Source-Version}), lsb-base (>= 3.0-6)
 Conflicts: ssh (<< 1:3.8.1p1-9), ssh-nonfree (<<2), ssh-socks, ssh2, sftp, rsh-client (<<0.16.1-1), ssh-krb5 (<< 1:4.3p2-7)
 Replaces: ssh, openssh-client (<< 1:3.8.1p1-11), ssh-krb5
 Suggests: ssh-askpass, xbase-clients, rssh, molly-guard
@@ -62,7 +89,7 @@
 Package: ssh
 Priority: extra
 Architecture: all
-Depends: openssh-client, openssh-server
+Depends: openssh-client | openssh-client-sc, openssh-server
 Description: secure shell client and server (metapackage)
  This metapackage is a convenient way to install both the OpenSSH client
  and the OpenSSH server. It provides nothing in and of itself, so you
diff -Naur openssh-4.7p1.orig/debian/openssh-client-sc.config openssh-4.7p1/debian/openssh-client-sc.config
--- openssh-4.7p1.orig/debian/openssh-client-sc.config	1970-01-01 01:00:00.000000000 +0100
+++ openssh-4.7p1/debian/openssh-client-sc.config	2008-02-05 01:19:52.000000000 +0100
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+action=$1
+version=$2
+
+# Source debconf library.
+. /usr/share/debconf/confmodule
+db_version 2.0
+
+if [ -d /etc/ssh-nonfree ] && [ ! -d /etc/ssh ]; then
+  version=1.2.27
+  cp -a /etc/ssh-nonfree /etc/ssh
+fi
+
+# Was ssh-keysign's setuid bit turned off using the obsolete debconf
+# question? If so, turn this into a statoverride. (Ugh.)
+if dpkg --compare-versions "$2" lt 1:4.1p1-2 && \
+    db_get ssh/SUID_client && [ "$RET" = false ] &&
+    [ -x /usr/sbin/dpkg-statoverride ] && \
+    ! dpkg-statoverride --list /usr/lib/ssh-keysign && \
+    ! dpkg-statoverride --list /usr/lib/openssh/ssh-keysign; then
+	dpkg-statoverride --update --add root root 0755 \
+		/usr/lib/openssh/ssh-keysign
+fi
+
+exit 0
diff -Naur openssh-4.7p1.orig/debian/openssh-client-sc.dirs openssh-4.7p1/debian/openssh-client-sc.dirs
--- openssh-4.7p1.orig/debian/openssh-client-sc.dirs	1970-01-01 01:00:00.000000000 +0100
+++ openssh-4.7p1/debian/openssh-client-sc.dirs	2008-02-05 01:19:52.000000000 +0100
@@ -0,0 +1 @@
+usr/share/lintian/overrides
diff -Naur openssh-4.7p1.orig/debian/openssh-client-sc.lintian openssh-4.7p1/debian/openssh-client-sc.lintian
--- openssh-4.7p1.orig/debian/openssh-client-sc.lintian	1970-01-01 01:00:00.000000000 +0100
+++ openssh-4.7p1/debian/openssh-client-sc.lintian	2008-02-05 01:19:52.000000000 +0100
@@ -0,0 +1,2 @@
+openssh-client-sc: setuid-binary usr/lib/openssh/ssh-keysign 4755 root/root
+openssh-client-sc: no-debconf-templates
diff -Naur openssh-4.7p1.orig/debian/openssh-client-sc.postinst openssh-4.7p1/debian/openssh-client-sc.postinst
--- openssh-4.7p1.orig/debian/openssh-client-sc.postinst	1970-01-01 01:00:00.000000000 +0100
+++ openssh-4.7p1/debian/openssh-client-sc.postinst	2008-02-05 01:19:52.000000000 +0100
@@ -0,0 +1,106 @@
+#!/bin/sh -e
+
+action="$1"
+oldversion="$2"
+
+. /usr/share/debconf/confmodule
+db_version 2.0
+
+umask 022
+
+if [ "$action" != configure ]
+  then
+  exit 0
+fi
+
+
+fix_rsh_diversion() {
+# get rid of mistaken rsh diversion (circa 1.2.27-1)
+
+	if [ -L /usr/bin/rsh ] &&
+		dpkg-divert --list '/usr/bin/rsh.real/rsh' | grep -q ' ssh$' ; then
+		for cmd in rlogin  rsh rcp ; do
+			[ -L /usr/bin/$cmd ] && rm /usr/bin/$cmd
+			dpkg-divert --package ssh --remove --rename \
+				--divert /usr/bin/rsh.real/$cmd /usr/bin/$cmd
+
+			[ -L /usr/man/man1/$cmd.1.gz ] && rm /usr/man/man1/$$cmd.1.gz
+			dpkg-divert --package ssh --remove --rename \
+				--divert /usr/man/man1/$cmd.real.1.gz /usr/man/man1/$cmd.1.gz
+		done
+
+		rmdir /usr/bin/rsh.real
+	fi
+}
+
+create_alternatives() {
+# Create alternatives for the various r* tools.
+# Make sure we don't change existing alternatives that a user might have
+# changed, but clean up after some old alternatives that mistakenly pointed
+# rlogin and rcp to ssh.
+	update-alternatives --quiet --remove rlogin /usr/bin/ssh
+	update-alternatives --quiet --remove rcp /usr/bin/ssh
+	for cmd in rsh rlogin rcp; do
+		scmd="s${cmd#r}"
+		if ! update-alternatives --display "$cmd" | \
+				grep -q "$scmd"; then
+			update-alternatives --quiet --install "/usr/bin/$cmd" "$cmd" "/usr/bin/$scmd" 20 \
+				--slave "/usr/share/man/man1/$cmd.1.gz" "$cmd.1.gz" "/usr/share/man/man1/$scmd.1.gz"
+		fi
+	done
+}
+
+set_ssh_permissions() {
+	if dpkg --compare-versions "$oldversion" lt-nl 1:3.4p1-1 ; then
+	    if [ -x /usr/sbin/dpkg-statoverride ] ; then
+		if dpkg-statoverride --list /usr/bin/ssh >/dev/null; then
+		    dpkg-statoverride --remove /usr/bin/ssh >/dev/null
+		fi 
+	    fi
+	fi
+
+	# libexecdir changed, so migrate old statoverrides.
+	if [ -x /usr/sbin/dpkg-statoverride ] &&
+	    override="$(dpkg-statoverride --list /usr/lib/ssh-keysign)"; then
+		override_user="${override%% *}"
+		override="${override#* }"
+		override_group="${override%% *}"
+		override="${override#* }"
+		override_mode="${override%% *}"
+		if dpkg-statoverride --update --add \
+		    "$override_user" "$override_group" "$override_mode" \
+		    /usr/lib/openssh/ssh-keysign; then
+			dpkg-statoverride --remove /usr/lib/ssh-keysign || true
+		fi
+	fi
+}
+
+fix_ssh_group() {
+	# Try to remove non-system group mistakenly created by 1:3.5p1-1.
+	# set_ssh_agent_permissions() below will re-create it properly.
+	if getent group ssh >/dev/null; then
+		delgroup --quiet ssh || true
+	fi
+}
+
+set_ssh_agent_permissions() {
+	if ! getent group ssh >/dev/null; then
+		addgroup --system --quiet ssh
+	fi
+	if ! [ -x /usr/sbin/dpkg-statoverride ] || \
+	    ! dpkg-statoverride --list /usr/bin/ssh-agent >/dev/null ; then
+		chgrp ssh /usr/bin/ssh-agent
+		chmod 2755 /usr/bin/ssh-agent
+	fi
+}
+
+
+fix_rsh_diversion
+create_alternatives
+set_ssh_permissions
+if [ "$2" = "1:3.5p1-1" ]; then
+    fix_ssh_group
+fi
+set_ssh_agent_permissions
+
+exit 0
diff -Naur openssh-4.7p1.orig/debian/openssh-client-sc.postrm openssh-4.7p1/debian/openssh-client-sc.postrm
--- openssh-4.7p1.orig/debian/openssh-client-sc.postrm	1970-01-01 01:00:00.000000000 +0100
+++ openssh-4.7p1/debian/openssh-client-sc.postrm	2008-02-05 01:19:52.000000000 +0100
@@ -0,0 +1,20 @@
+#!/bin/sh -e
+
+#DEBHELPER#
+
+if [ "$1" = "purge" ]
+then
+    # Remove all non-conffiles that ssh might create, so that we can
+    # smoothly remove /etc/ssh if and only if the user hasn't dropped some
+    # other files in there. Conffiles have already been removed at this
+    # point.
+    rm -f /etc/ssh/moduli /etc/ssh/primes
+    rm -f /etc/ssh/ssh_known_hosts /etc/ssh/ssh_known_hosts2
+    rmdir --ignore-fail-on-non-empty /etc/ssh
+fi
+
+if [ "$1" = "purge" ] ; then
+	delgroup --quiet ssh > /dev/null || true
+fi
+
+exit 0
diff -Naur openssh-4.7p1.orig/debian/openssh-client-sc.prerm openssh-4.7p1/debian/openssh-client-sc.prerm
--- openssh-4.7p1.orig/debian/openssh-client-sc.prerm	1970-01-01 01:00:00.000000000 +0100
+++ openssh-4.7p1/debian/openssh-client-sc.prerm	2008-02-05 01:19:52.000000000 +0100
@@ -0,0 +1,39 @@
+#! /bin/sh
+# prerm script for ssh
+#
+# see: dh_installdeb(1)
+
+set -e
+
+# summary of how this script can be called:
+#        * <prerm> `remove'
+#        * <old-prerm> `upgrade' <new-version>
+#        * <new-prerm> `failed-upgrade' <old-version>
+#        * <conflictor's-prerm> `remove' `in-favour' <package> <new-version>
+#        * <deconfigured's-prerm> `deconfigure' `in-favour'
+#          <package-being-installed> <version> `removing'
+#          <conflicting-package> <version>
+# for details, see /usr/share/doc/packaging-manual/
+
+case "$1" in
+    remove|deconfigure)
+	update-alternatives --quiet --remove rsh /usr/bin/ssh
+	update-alternatives --quiet --remove rlogin /usr/bin/slogin
+	update-alternatives --quiet --remove rcp /usr/bin/scp
+	;;
+    upgrade)
+        ;;
+    failed-upgrade)
+        ;;
+    *)
+        echo "prerm called with unknown argument \`$1'" >&2
+        exit 0
+    ;;
+esac
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0
diff -Naur openssh-4.7p1.orig/debian/rules openssh-4.7p1/debian/rules
--- openssh-4.7p1.orig/debian/rules	2008-02-05 01:27:54.000000000 +0100
+++ openssh-4.7p1/debian/rules	2008-02-05 01:27:03.000000000 +0100
@@ -108,7 +108,7 @@
 confflags += --with-ldflags='$(PIE_LDFLAGS)'
 endif
 
-build: build-deb build-udeb
+build: build-deb build-sc-deb build-udeb
 
 build-deb: build-deb-stamp
 build-deb-stamp:
@@ -128,6 +128,23 @@
 
 	touch build-deb-stamp
 
+build-sc-deb: build-sc-deb-stamp
+build-sc-deb-stamp:
+	dh_testdir
+	mkdir -p build-sc-deb
+	cd build-sc-deb && $(FORCE_LIBS) ../configure --prefix=/usr --sysconfdir=/etc/ssh --libexecdir=/usr/lib/openssh --mandir=/usr/share/man --with-tcp-wrappers --with-xauth=/usr/bin/X11/xauth --with-default-path=/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games --with-superuser-path=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11 --with-pam --with-4in6 --with-privsep-path=/var/run/sshd --without-rand-helper --with-libedit --with-kerberos5=/usr $(SELINUX) --with-opensc=/usr
+
+ifeq ($(DEB_HOST_ARCH_OS),linux)
+	# Some 2.2 kernels have trouble with setres[ug]id() (bug #239999).
+	perl -pi -e 's/.*#undef (BROKEN_SETRES[UG]ID).*/#define $$1 1/' build-sc-deb/config.h
+endif
+	# Debian's /var/log/btmp has inappropriate permissions.
+	perl -pi -e 's,.*#define USE_BTMP .*,/* #undef USE_BTMP */,' build-sc-deb/config.h
+
+	$(MAKE) -C build-sc-deb -j 2 ASKPASS_PROGRAM='/usr/bin/ssh-askpass' CFLAGS='$(OPTFLAGS) -g -Wall -Wpointer-arith -Wuninitialized -Wsign-compare -std=gnu99 -DLOGIN_PROGRAM=\"/bin/login\" -DLOGIN_NO_ENDOPT -DSSHD_PAM_SERVICE=\"ssh\" -DSSH_EXTRAVERSION="\" $(SSH_EXTRAVERSION)\""'
+
+	touch build-sc-deb-stamp
+
 build-udeb: build-udeb-stamp
 build-udeb-stamp:
 	dh_testdir
@@ -143,8 +160,8 @@
 
 clean:
 	dh_testdir
-	rm -f build-deb-stamp build-udeb-stamp
-	rm -rf build-deb build-udeb
+	rm -f build-deb-stamp build-sc-deb-stamp build-udeb-stamp
+	rm -rf build-deb build-sc-deb build-udeb
 	$(MAKE) -C contrib clean
 	rm -f config.log
 	rm -f debian/ssh-askpass-gnome.png
@@ -158,10 +175,13 @@
 	dh_installdirs
 
 	$(MAKE) -C build-deb DESTDIR=`pwd`/debian/openssh-client install-nokeys
+	$(MAKE) -C build-sc-deb DESTDIR=`pwd`/debian/openssh-client-sc install-nokeys
 
 	rm -f debian/openssh-client/etc/ssh/sshd_config
+	rm -f debian/openssh-client-sc/etc/ssh/sshd_config
 	#Temporary hack: remove /usr/share/Ssh.bin, since we have no smartcard support anyway.
 	rm -f debian/openssh-client/usr/share/Ssh.bin
+	rm -f debian/openssh-client-sc/usr/share/Ssh.bin
 
 	# Split off the server.
 	mv debian/openssh-client/usr/sbin/sshd debian/openssh-server/usr/sbin/
@@ -171,10 +191,19 @@
 	mv debian/openssh-client/usr/share/man/man8/sshd.8 debian/openssh-server/usr/share/man/man8/
 	mv debian/openssh-client/usr/share/man/man8/sftp-server.8 debian/openssh-server/usr/share/man/man8/
 	rmdir debian/openssh-client/usr/sbin debian/openssh-client/var/run/sshd
+	rm -f debian/openssh-client-sc/usr/sbin/sshd
+	rm -f debian/openssh-client-sc/usr/lib/openssh/sftp-server
+	rm -f debian/openssh-client-sc/usr/share/man/man5/sshd_config.5
+	rm -f debian/openssh-client-sc/usr/share/man/man8/sshd.8
+	rm -f debian/openssh-client-sc/usr/share/man/man8/sftp-server.8
+	rmdir debian/openssh-client-sc/usr/sbin debian/openssh-client-sc/var/run/sshd
 
 	install -m 755 contrib/ssh-copy-id debian/openssh-client/usr/bin/ssh-copy-id
 	install -m 644 -c contrib/ssh-copy-id.1 debian/openssh-client/usr/share/man/man1/ssh-copy-id.1
 	install -m 644 debian/moduli.5 debian/openssh-client/usr/share/man/man5/moduli.5
+	install -m 755 contrib/ssh-copy-id debian/openssh-client-sc/usr/bin/ssh-copy-id
+	install -m 644 -c contrib/ssh-copy-id.1 debian/openssh-client-sc/usr/share/man/man1/ssh-copy-id.1
+	install -m 644 debian/moduli.5 debian/openssh-client-sc/usr/share/man/man5/moduli.5
 
 	install -s -o root -g root -m 755 contrib/gnome-ssh-askpass2 debian/ssh-askpass-gnome/usr/lib/openssh/gnome-ssh-askpass
 	install -m 644 debian/gnome-ssh-askpass.1 debian/ssh-askpass-gnome/usr/share/man/man1/gnome-ssh-askpass.1
@@ -182,6 +211,8 @@
 
 	install -m 755 debian/ssh-argv0 debian/openssh-client/usr/bin/ssh-argv0
 	install -m 644 debian/ssh-argv0.1 debian/openssh-client/usr/share/man/man1/ssh-argv0.1
+	install -m 755 debian/ssh-argv0 debian/openssh-client-sc/usr/bin/ssh-argv0
+	install -m 644 debian/ssh-argv0.1 debian/openssh-client-sc/usr/share/man/man1/ssh-argv0.1
 
 	install -o root -g root debian/openssh-server.init debian/openssh-server/etc/init.d/ssh
 	install -o root -g root -m 644 debian/openssh-server.default debian/openssh-server/etc/default/ssh
@@ -203,7 +234,7 @@
 binary-indep: binary-ssh binary-ssh-krb5
 
 # Build architecture-dependent files here.
-binary-arch: binary-openssh-client binary-openssh-server
+binary-arch: binary-openssh-client binary-openssh-client-sc binary-openssh-server
 binary-arch: binary-ssh-askpass-gnome
 binary-arch: binary-openssh-client-udeb binary-openssh-server-udeb
 
@@ -233,6 +264,28 @@
 	dh_md5sums
 	dh_builddeb
 
+binary-openssh-client-sc: DH_OPTIONS=-popenssh-client-sc
+binary-openssh-client-sc: build install
+	dh_testdir
+	dh_testroot
+	dh_installdebconf
+	dh_installdocs OVERVIEW README README.dns
+	cat debian/copyright.head LICENCE > debian/openssh-client-sc/usr/share/doc/openssh-client-sc/copyright
+	dh_installchangelogs ChangeLog
+	install -m644 debian/openssh-client.lintian debian/openssh-client-sc/usr/share/lintian/overrides/openssh-client-sc
+	mv debian/openssh-client-sc/usr/share/doc/openssh-client-sc debian/openssh-client-sc/usr/share/doc/openssh-client
+	dh_strip
+	dh_compress
+	dh_fixperms
+	chmod u+s debian/openssh-client-sc/usr/lib/openssh/ssh-keysign
+	dh_installdeb
+	test ! -e debian/ssh/etc/ssh/ssh_prng_cmds \
+	  || echo "/etc/ssh/ssh_prng_cmds" >> debian/openssh-client-sc/DEBIAN/conffiles
+	dh_shlibdeps
+	dh_gencontrol -- -V'debconf-depends=debconf (>= $(MINDEBCONFVER)) | debconf-2.0'
+	dh_md5sums
+	dh_builddeb
+
 binary-openssh-server: DH_OPTIONS=-popenssh-server
 binary-openssh-server: build install
 	dh_testdir
diff -Naur openssh-4.7p1.orig/scard.c openssh-4.7p1/scard.c
--- openssh-4.7p1.orig/scard.c	2008-02-05 01:27:54.000000000 +0100
+++ openssh-4.7p1/scard.c	2008-02-05 01:19:52.000000000 +0100
@@ -40,6 +40,9 @@
 #include "misc.h"
 #include "scard.h"
 
+/* currently unused */
+int ask_for_pin = 0;
+
 #if OPENSSL_VERSION_NUMBER < 0x00907000L
 #define USE_ENGINE
 #define RSA_get_default_method RSA_get_default_openssl_method
diff -Naur openssh-4.7p1.orig/scard.h openssh-4.7p1/scard.h
--- openssh-4.7p1.orig/scard.h	2008-02-05 01:27:54.000000000 +0100
+++ openssh-4.7p1/scard.h	2008-02-05 01:19:52.000000000 +0100
@@ -31,6 +31,8 @@
 #define SCARD_ERROR_NOCARD	-2
 #define SCARD_ERROR_APPLET	-3
 
+extern int ask_for_pin;
+
 Key	**sc_get_keys(const char *, const char *);
 void	 sc_close(void);
 int	 sc_put_key(Key *, const char *);
diff -Naur openssh-4.7p1.orig/scard-opensc.c openssh-4.7p1/scard-opensc.c
--- openssh-4.7p1.orig/scard-opensc.c	2008-02-05 01:27:54.000000000 +0100
+++ openssh-4.7p1/scard-opensc.c	2008-02-05 01:19:52.000000000 +0100
@@ -43,6 +43,8 @@
 #include "misc.h"
 #include "scard.h"
 
+int ask_for_pin=0;
+
 #if OPENSSL_VERSION_NUMBER < 0x00907000L && defined(CRYPTO_LOCK_ENGINE)
 #define USE_ENGINE
 #define RSA_get_default_method RSA_get_default_openssl_method
@@ -124,6 +126,7 @@
 	struct sc_pkcs15_prkey_info *key;
 	struct sc_pkcs15_object *pin_obj;
 	struct sc_pkcs15_pin_info *pin;
+	char *passphrase = NULL;
 
 	priv = (struct sc_priv_data *) RSA_get_app_data(rsa);
 	if (priv == NULL)
@@ -161,24 +164,47 @@
 		goto err;
 	}
 	pin = pin_obj->data;
+
+	if (sc_pin)
+		passphrase = sc_pin;
+	else if (ask_for_pin) {
+		/* we need a pin but don't have one => ask for the pin */
+		char prompt[64];
+
+		snprintf(prompt, sizeof(prompt), "Enter PIN for %s: ",
+			key_obj->label ? key_obj->label : "smartcard key");
+		passphrase = read_passphrase(prompt, 0);
+		if (!passphrase || !strcmp(passphrase, ""))
+			goto err;
+	} else 
+		/* no pin => error */
+		goto err;
+
 	r = sc_lock(card);
 	if (r) {
 		error("Unable to lock smartcard: %s", sc_strerror(r));
 		goto err;
 	}
-	if (sc_pin != NULL) {
-		r = sc_pkcs15_verify_pin(p15card, pin, sc_pin,
-					 strlen(sc_pin));
+	r = sc_pkcs15_verify_pin(p15card, pin, passphrase,
+				 strlen(passphrase));
 		if (r) {
 			sc_unlock(card);
 			error("PIN code verification failed: %s",
 			      sc_strerror(r));
 			goto err;
 		}
-	}
+
 	*key_obj_out = key_obj;
+	if (!sc_pin) {
+		memset(passphrase, 0, strlen(passphrase));
+		xfree(passphrase);
+	}
 	return 0;
 err:
+	if (!sc_pin && passphrase) {
+		memset(passphrase, 0, strlen(passphrase));
+		xfree(passphrase);
+	}
 	sc_close();
 	return -1;
 }
diff -Naur openssh-4.7p1.orig/ssh.c openssh-4.7p1/ssh.c
--- openssh-4.7p1.orig/ssh.c	2008-02-05 01:27:54.000000000 +0100
+++ openssh-4.7p1/ssh.c	2008-02-05 01:19:52.000000000 +0100
@@ -1225,6 +1225,9 @@
 #ifdef SMARTCARD
 	Key **keys;
 
+	if (!options.batch_mode)
+		ask_for_pin = 1;
+
 	if (options.smartcard_device != NULL &&
 	    options.num_identity_files < SSH_MAX_IDENTITY_FILES &&
 	    (keys = sc_get_keys(options.smartcard_device, NULL)) != NULL) {

Patch for faster transfers

See http://www.psc.edu/networking/projects/hpn-ssh/

Here is the patch OpenSSH-4.7p1-hpn13 v1 ported to Debian OpenSSH-4.7p1-5

diff -Naur openssh-4.7p1-debian/HPN12-README openssh-4.7p1/HPN12-README
--- openssh-4.7p1-debian/HPN12-README	1970-01-01 01:00:00.000000000 +0100
+++ openssh-4.7p1/HPN12-README	2008-04-02 14:10:52.000000000 +0200
@@ -0,0 +1,111 @@
+Notes:
+
+To use the NONE option you must have the NoneEnabled switch set on the server and
+you *must* have *both* NoneEnabled and NoneSwitch set to yes on the client. The NONE
+feature works with ALL ssh subsystems (as far as we can tell) *AS LONG AS* a tty is not 
+spawned. If a user uses the -T switch to prevent a tty being created the NONE cipher will
+be disabled. 
+
+The performance increase will only be as good as the network and TCP stack tuning
+on the reciever side of the connection allows. As a rule of thumb a user will need 
+at least 10Mb/s connection with a 100ms RTT to see a doubling of performance. The
+HPN-SSH home page describes this in greater detail. 
+
+http://www.psc.edu/networking/projects/hpn-ssh
+
+Buffer Sizes:
+
+If HPN is disabled the receive buffer size will be set to the 
+OpenSSH default of 64K.
+
+If an HPN system connects to a nonHPN system the receive buffer will
+be set to the HPNBufferSize value. The default is 2MB but user adjustable.
+
+If an HPN to HPN connection is established a number of different things might
+happen based on the user options and conditions. 
+
+Conditions: HPNBufferSize NOT Set, TCPRcvBufPoll enabled, TCPRcvBuf NOT Set 
+HPN Buffer Size = up to 64MB 
+This is the default state. The HPN buffer size will grow to a maximum of 64MB 
+as the TCP receive buffer grows. The maximum HPN Buffer size of 64MB is 
+geared towards 10GigE transcontinental connections. 
+
+Conditions: HPNBufferSize NOT Set, TCPRcvBufPoll disabled, TCPRcvBuf NOT Set
+HPN Buffer Size = TCP receive buffer value. 
+Users on non-autotuning systesm should disable TCPRcvBufPoll in the 
+ssh_cofig and sshd_config
+
+Conditions: HPNBufferSize SET, TCPRcvBufPoll disabled, TCPRcvBuf NOT Set
+HPN Buffer Size = minmum of TCP receive buffer and HPNBufferSize. 
+This would be the system defined TCP receive buffer (RWIN).
+
+Conditions: HPNBufferSize SET, TCPRcvBufPoll disabled, TCPRcvBuf SET
+HPN Buffer Size = minmum of TCPRcvBuf and HPNBufferSize. 
+Generally there is no need to set both.
+
+Conditions: HPNBufferSize SET, TCPRcvBufPoll enabled, TCPRcvBuf NOT Set
+HPN Buffer Size = grows to HPNBufferSize
+The buffer will grow up to the maximum size specified here. 
+
+Conditions: HPNBufferSize SET, TCPRcvBufPoll enabled, TCPRcvBuf SET
+HPN Buffer Size = minmum of TCPRcvBuf and HPNBufferSize. 
+Generally there is no need to set both of these, especially on autotuning 
+systems. However, if the users wishes to override the autotuning this would be 
+one way to do it.
+
+Conditions: HPNBufferSize NOT Set, TCPRcvBufPoll enabled, TCPRcvBuf SET
+HPN Buffer Size = TCPRcvBuf. 
+This will override autotuning and set the TCP recieve buffer to the user defined 
+value.
+
+
+HPN Specific Configuration options
+
+TcpRcvBuf=[int]KB client
+      set the TCP socket receive buffer to n Kilobytes. It can be set up to the 
+maximum socket size allowed by the system. This is useful in situations where 
+the tcp receive window is set low but the maximum buffer size is set 
+higher (as is typical). This works on a per TCP connection basis. You can also 
+use this to artifically limit the transfer rate of the connection. In these 
+cases the throughput will be no more than n/RTT. The minimum buffer size is 1KB. 
+Default is the current system wide tcp receive buffer size.
+
+TcpRcvBufPoll=[yes/no] client/server
+      enable of disable the polling of the tcp receive buffer through the life 
+of the connection. You would want to make sure that this option is enabled 
+for systems making use of autotuning kernels (linux 2.4.24+, 2.6, MS Vista) 
+default is yes.
+
+NoneEnabled=[yes/no] client/server
+      enable or disable the use of the None cipher. Care must always be used 
+when enabling this as it will allow users to send data in the clear. However, 
+it is important to note that authentication information remains encrypted 
+even if this option is enabled. Set to no by default.
+
+NoneSwitch=[yes/no] client
+     Switch the encryption cipher being used to the None cipher after
+authentication takes place. NoneEnabled must be enabled on both the client
+and server side of the connection. When the connection switches to the NONE
+cipher a warning is sent to STDERR. The connection attempt will fail with an
+error if a client requests a NoneSwitch from the server that does not explicitly
+have NoneEnabled set to yes. Note: The NONE cipher cannot be used in
+interactive (shell) sessions and it will fail silently. Set to no by default.
+
+HPNDisabled=[yes/no] client/server
+     In some situations, such as transfers on a local area network, the impact 
+of the HPN code produces a net decrease in performance. In these cases it is 
+helpful to disable the HPN functionality. By default HPNDisabled is set to no. 
+
+HPNBufferSize=[int]KB client/server
+     This is the default buffer size the HPN functionality uses when interacting
+with nonHPN SSH installations. Conceptually this is similar to the TcpRcvBuf
+option as applied to the internal SSH flow control. This value can range from 
+1KB to 64MB (1-65536). Use of oversized or undersized buffers can cause performance
+problems depending on the length of the network path. The default size of this buffer
+is 2MB.
+
+
+Credits: This patch was conceived, designed, and led by Chris Rapier (rapier@psc.edu)
+         The majority of the actual coding for versions up to HPN12v1 was performed
+         by Michael Stevens (mstevens@andrew.cmu.edu). This work was financed, in part,
+         by Cisco System, Inc., and the National Science Foundation. 
diff -Naur openssh-4.7p1-debian/Makefile.in openssh-4.7p1/Makefile.in
--- openssh-4.7p1-debian/Makefile.in	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/Makefile.in	2008-04-02 14:10:52.000000000 +0200
@@ -43,7 +43,7 @@
 LD=@LD@
 CFLAGS=@CFLAGS@
 CPPFLAGS=-I. -I$(srcdir) @CPPFLAGS@ $(PATHS) @DEFS@
-LIBS=@LIBS@
+LIBS=@LIBS@ -lpthread
 SSHDLIBS=@SSHDLIBS@
 LIBEDIT=@LIBEDIT@
 AR=@AR@
@@ -64,7 +64,7 @@
 
 LIBSSH_OBJS=acss.o authfd.o authfile.o bufaux.o bufbn.o buffer.o \
 	canohost.o channels.o cipher.o cipher-acss.o cipher-aes.o \
-	cipher-bf1.o cipher-ctr.o cipher-3des1.o cleanup.o \
+	cipher-bf1.o cipher-ctr.o cipher-ctr-mt.o cipher-3des1.o cleanup.o \
 	compat.o compress.o crc32.o deattack.o fatal.o hostfile.o \
 	log.o match.o md-sha256.o moduli.o nchan.o packet.o \
 	readpass.o rsa.o ttymodes.o xmalloc.o \
diff -Naur openssh-4.7p1-debian/atomicio.c openssh-4.7p1/atomicio.c
--- openssh-4.7p1-debian/atomicio.c	2007-06-25 14:15:12.000000000 +0200
+++ openssh-4.7p1/atomicio.c	2008-04-02 14:10:52.000000000 +0200
@@ -57,13 +57,13 @@
 		res = (f) (fd, s + pos, n - pos);
 		switch (res) {
 		case -1:
-#ifdef EWOULDBLOCK
-			if (errno == EINTR || errno == EWOULDBLOCK)
-#else
 			if (errno == EINTR)
-#endif
 				continue;
+#ifdef EWOULDBLOCK
+			if (errno == EAGAIN || errno == EWOULDBLOCK) {
+#else
 			if (errno == EAGAIN) {
+#endif
 				(void)poll(&pfd, 1, -1);
 				continue;
 			}
@@ -103,13 +103,13 @@
 		res = (f) (fd, iov, iovcnt);
 		switch (res) {
 		case -1:
-#ifdef EWOULDBLOCK
-			if (errno == EINTR || errno == EWOULDBLOCK)
-#else
 			if (errno == EINTR)
-#endif
 				continue;
+#ifdef EWOULDBLOCK
+			if (errno == EAGAIN || errno == EWOULDBLOCK) {
+#else
 			if (errno == EAGAIN) {
+#endif
 				(void)poll(&pfd, 1, -1);
 				continue;
 			}
diff -Naur openssh-4.7p1-debian/auth2.c openssh-4.7p1/auth2.c
--- openssh-4.7p1-debian/auth2.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/auth2.c	2008-04-02 14:10:52.000000000 +0200
@@ -44,6 +44,7 @@
 #include "dispatch.h"
 #include "pathnames.h"
 #include "buffer.h"
+#include "canohost.h"
 
 #ifdef GSSAPI
 #include "ssh-gss.h"
@@ -68,6 +69,9 @@
 extern Authmethod method_gssapi;
 #endif
 
+static int log_flag = 0;
+
+
 Authmethod *authmethods[] = {
 	&method_none,
 	&method_pubkey,
@@ -153,6 +157,11 @@
 	service = packet_get_string(NULL);
 	method = packet_get_string(NULL);
 	debug("userauth-request for user %s service %s method %s", user, service, method);
+	if (!log_flag) {
+		logit("SSH: Server;Ltype: Authname;Remote: %s-%d;Name: %s", 
+		      get_remote_ipaddr(), get_remote_port(), user);
+		log_flag = 1;
+	}
 	debug("attempt %d failures %d", authctxt->attempt, authctxt->failures);
 
 	if ((role = strchr(user, '/')) != NULL)
diff -Naur openssh-4.7p1-debian/buffer.c openssh-4.7p1/buffer.c
--- openssh-4.7p1-debian/buffer.c	2006-08-05 04:39:39.000000000 +0200
+++ openssh-4.7p1/buffer.c	2008-04-02 14:10:52.000000000 +0200
@@ -127,7 +127,9 @@
 
 	/* Increase the size of the buffer and retry. */
 	newlen = roundup(buffer->alloc + len, BUFFER_ALLOCSZ);
-	if (newlen > BUFFER_MAX_LEN)
+	/* need it to be slightly larger than the MAX LEN for this */
+	/* still investigating *why* but this works for now -cjr */
+	if (newlen > (BUFFER_MAX_LEN_HPN + BUFFER_MAX_LEN)) 
 		fatal("buffer_append_space: alloc %u not supported",
 		    newlen);
 	buffer->buf = xrealloc(buffer->buf, 1, newlen);
diff -Naur openssh-4.7p1-debian/buffer.h openssh-4.7p1/buffer.h
--- openssh-4.7p1-debian/buffer.h	2006-08-05 04:39:39.000000000 +0200
+++ openssh-4.7p1/buffer.h	2008-04-02 14:10:52.000000000 +0200
@@ -16,6 +16,9 @@
 #ifndef BUFFER_H
 #define BUFFER_H
 
+/* move the following to a more appropriate place and name */
+#define BUFFER_MAX_LEN_HPN          0x4000000  /* 64MB */
+
 typedef struct {
 	u_char	*buf;		/* Buffer for data. */
 	u_int	 alloc;		/* Number of bytes allocated for data. */
diff -Naur openssh-4.7p1-debian/channels.c openssh-4.7p1/channels.c
--- openssh-4.7p1-debian/channels.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/channels.c	2008-04-02 14:10:52.000000000 +0200
@@ -311,6 +311,7 @@
 	c->local_window_max = window;
 	c->local_consumed = 0;
 	c->local_maxpacket = maxpack;
+	c->dynamic_window = 0;
 	c->remote_id = -1;
 	c->remote_name = xstrdup(remote_name);
 	c->remote_window = 0;
@@ -765,11 +766,35 @@
 		FD_SET(c->sock, writeset);
 }
 
+int channel_tcpwinsz () {
+        u_int32_t tcpwinsz = 0;
+        socklen_t optsz = sizeof(tcpwinsz);
+	int ret = -1;
+
+	/* if we aren't on a socket return 128KB*/
+	if(!packet_connection_is_on_socket()) 
+	    return(128*1024);
+	ret = getsockopt(packet_get_connection_in(),
+			 SOL_SOCKET, SO_RCVBUF, &tcpwinsz, &optsz);
+	/* return no more than 64MB */
+	if ((ret == 0) && tcpwinsz > BUFFER_MAX_LEN_HPN)
+	    tcpwinsz = BUFFER_MAX_LEN_HPN;
+	debug2("tcpwinsz: %d for connection: %d", tcpwinsz, 
+	       packet_get_connection_in());
+	return(tcpwinsz);
+}
+
 static void
 channel_pre_open(Channel *c, fd_set *readset, fd_set *writeset)
 {
 	u_int limit = compat20 ? c->remote_window : packet_get_maxsize();
 
+        /* check buffer limits */
+	if ((!c->tcpwinsz) || (c->dynamic_window > 0))
+    	    c->tcpwinsz = channel_tcpwinsz();
+	
+	limit = MIN(limit, 2 * c->tcpwinsz);
+	
 	if (c->istate == CHAN_INPUT_OPEN &&
 	    limit > 0 &&
 	    buffer_len(&c->input) < limit &&
@@ -1661,14 +1686,21 @@
 	    c->local_maxpacket*3) ||
 	    c->local_window < c->local_window_max/2) &&
 	    c->local_consumed > 0) {
+		u_int addition = 0;
+		/* adjust max window size if we are in a dynamic environment */
+		if (c->dynamic_window && (c->tcpwinsz > c->local_window_max)) {
+			/* grow the window somewhat aggressively to maintain pressure */
+			addition = 1.5*(c->tcpwinsz - c->local_window_max);
+			c->local_window_max += addition;
+		}
 		packet_start(SSH2_MSG_CHANNEL_WINDOW_ADJUST);
 		packet_put_int(c->remote_id);
-		packet_put_int(c->local_consumed);
+		packet_put_int(c->local_consumed + addition);
 		packet_send();
 		debug2("channel %d: window %d sent adjust %d",
 		    c->self, c->local_window,
 		    c->local_consumed);
-		c->local_window += c->local_consumed;
+		c->local_window += c->local_consumed + addition;
 		c->local_consumed = 0;
 	}
 	return 1;
@@ -1871,11 +1903,12 @@
 
 
 /* If there is data to send to the connection, enqueue some of it now. */
-void
+int
 channel_output_poll(void)
 {
 	Channel *c;
 	u_int i, len;
+	int packet_length = 0;
 
 	for (i = 0; i < channels_alloc; i++) {
 		c = channels[i];
@@ -1915,7 +1948,7 @@
 					packet_start(SSH2_MSG_CHANNEL_DATA);
 					packet_put_int(c->remote_id);
 					packet_put_string(data, dlen);
-					packet_send();
+					packet_length = packet_send();
 					c->remote_window -= dlen + 4;
 					xfree(data);
 				}
@@ -1945,7 +1978,7 @@
 				    SSH2_MSG_CHANNEL_DATA : SSH_MSG_CHANNEL_DATA);
 				packet_put_int(c->remote_id);
 				packet_put_string(buffer_ptr(&c->input), len);
-				packet_send();
+				packet_length = packet_send();
 				buffer_consume(&c->input, len);
 				c->remote_window -= len;
 			}
@@ -1980,12 +2013,13 @@
 			packet_put_int(c->remote_id);
 			packet_put_int(SSH2_EXTENDED_DATA_STDERR);
 			packet_put_string(buffer_ptr(&c->extended), len);
-			packet_send();
+			packet_length = packet_send();
 			buffer_consume(&c->extended, len);
 			c->remote_window -= len;
 			debug2("channel %d: sent ext data %d", c->self, len);
 		}
 	}
+	return (packet_length);
 }
 
 
@@ -2342,7 +2376,8 @@
 
 static int
 channel_setup_fwd_listener(int type, const char *listen_addr, u_short listen_port,
-    const char *host_to_connect, u_short port_to_connect, int gateway_ports)
+    const char *host_to_connect, u_short port_to_connect, int gateway_ports, 
+    int hpn_disabled, int hpn_buffer_size)
 {
 	Channel *c;
 	int sock, r, success = 0, wildcard = 0, is_client;
@@ -2455,9 +2490,15 @@
 			continue;
 		}
 		/* Allocate a channel number for the socket. */
+		/* explicitly test for hpn disabled option. if true use smaller window size */
+		if (hpn_disabled)
 		c = channel_new("port listener", type, sock, sock, -1,
 		    CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT,
 		    0, "port listener", 1);
+		else
+			c = channel_new("port listener", type, sock, sock, -1,
+		    	  hpn_buffer_size, CHAN_TCP_PACKET_DEFAULT,
+		    	  0, "port listener", 1); 
 		strlcpy(c->path, host, sizeof(c->path));
 		c->host_port = port_to_connect;
 		c->listening_port = listen_port;
@@ -2494,20 +2535,22 @@
 /* protocol local port fwd, used by ssh (and sshd in v1) */
 int
 channel_setup_local_fwd_listener(const char *listen_host, u_short listen_port,
-    const char *host_to_connect, u_short port_to_connect, int gateway_ports)
+    const char *host_to_connect, u_short port_to_connect, int gateway_ports, 
+    int hpn_disabled, int hpn_buffer_size)
 {
 	return channel_setup_fwd_listener(SSH_CHANNEL_PORT_LISTENER,
 	    listen_host, listen_port, host_to_connect, port_to_connect,
-	    gateway_ports);
+	    gateway_ports, hpn_disabled, hpn_buffer_size);
 }
 
 /* protocol v2 remote port fwd, used by sshd */
 int
 channel_setup_remote_fwd_listener(const char *listen_address,
-    u_short listen_port, int gateway_ports)
+    u_short listen_port, int gateway_ports, int hpn_disabled, int hpn_buffer_size)
 {
 	return channel_setup_fwd_listener(SSH_CHANNEL_RPORT_LISTENER,
-	    listen_address, listen_port, NULL, 0, gateway_ports);
+	    listen_address, listen_port, NULL, 0, gateway_ports, 
+	    hpn_disabled, hpn_buffer_size);
 }
 
 /*
@@ -2622,7 +2665,8 @@
  * message if there was an error).
  */
 int
-channel_input_port_forward_request(int is_root, int gateway_ports)
+channel_input_port_forward_request(int is_root, int gateway_ports,
+				   int hpn_disabled, int hpn_buffer_size)
 {
 	u_short port, host_port;
 	int success = 0;
@@ -2648,7 +2692,7 @@
 
 	/* Initiate forwarding */
 	success = channel_setup_local_fwd_listener(NULL, port, hostname,
-	    host_port, gateway_ports);
+	    host_port, gateway_ports, hpn_disabled, hpn_buffer_size);
 
 	/* Free the argument string. */
 	xfree(hostname);
@@ -2852,7 +2896,8 @@
  */
 int
 x11_create_display_inet(int x11_display_offset, int x11_use_localhost,
-    int single_connection, u_int *display_numberp, int **chanids)
+    int single_connection, u_int *display_numberp, int **chanids, 
+    int hpn_disabled, int hpn_buffer_size)
 {
 	Channel *nc = NULL;
 	int display_number, sock;
@@ -2950,10 +2995,17 @@
 	*chanids = xcalloc(num_socks + 1, sizeof(**chanids));
 	for (n = 0; n < num_socks; n++) {
 		sock = socks[n];
+		/* Is this really necassary? */
+		if (hpn_disabled) 
 		nc = channel_new("x11 listener",
 		    SSH_CHANNEL_X11_LISTENER, sock, sock, -1,
 		    CHAN_X11_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT,
 		    0, "X11 inet listener", 1);
+		else 
+			nc = channel_new("x11 listener",
+			    SSH_CHANNEL_X11_LISTENER, sock, sock, -1,
+			    hpn_buffer_size, CHAN_X11_PACKET_DEFAULT,
+			    0, "X11 inet listener", 1);
 		nc->single_connection = single_connection;
 		(*chanids)[n] = nc->self;
 	}
diff -Naur openssh-4.7p1-debian/channels.h openssh-4.7p1/channels.h
--- openssh-4.7p1-debian/channels.h	2007-06-12 15:38:54.000000000 +0200
+++ openssh-4.7p1/channels.h	2008-04-02 14:10:52.000000000 +0200
@@ -98,8 +98,10 @@
 	u_int	local_window_max;
 	u_int	local_consumed;
 	u_int	local_maxpacket;
+	int	dynamic_window;
 	int     extended_usage;
 	int	single_connection;
+	u_int 	tcpwinsz;	
 
 	char   *ctype;		/* type */
 
@@ -122,9 +124,11 @@
 
 /* default window/packet sizes for tcp/x11-fwd-channel */
 #define CHAN_SES_PACKET_DEFAULT	(32*1024)
-#define CHAN_SES_WINDOW_DEFAULT	(64*CHAN_SES_PACKET_DEFAULT)
+#define CHAN_SES_WINDOW_DEFAULT	(4*CHAN_SES_PACKET_DEFAULT)
+
 #define CHAN_TCP_PACKET_DEFAULT	(32*1024)
-#define CHAN_TCP_WINDOW_DEFAULT	(64*CHAN_TCP_PACKET_DEFAULT)
+#define CHAN_TCP_WINDOW_DEFAULT	(4*CHAN_TCP_PACKET_DEFAULT)
+
 #define CHAN_X11_PACKET_DEFAULT	(16*1024)
 #define CHAN_X11_WINDOW_DEFAULT	(4*CHAN_X11_PACKET_DEFAULT)
 
@@ -193,7 +197,7 @@
 
 void	 channel_prepare_select(fd_set **, fd_set **, int *, u_int*, int);
 void     channel_after_select(fd_set *, fd_set *);
-void     channel_output_poll(void);
+int      channel_output_poll(void);
 
 int      channel_not_very_much_buffered_data(void);
 void     channel_close_all(void);
@@ -208,21 +212,21 @@
 int	 channel_add_adm_permitted_opens(char *, int);
 void	 channel_clear_permitted_opens(void);
 void	 channel_clear_adm_permitted_opens(void);
-int      channel_input_port_forward_request(int, int);
+int      channel_input_port_forward_request(int, int, int, int);
 int	 channel_connect_to(const char *, u_short);
 int	 channel_connect_by_listen_address(u_short);
 int	 channel_request_remote_forwarding(const char *, u_short,
 	     const char *, u_short);
 int	 channel_setup_local_fwd_listener(const char *, u_short,
-	     const char *, u_short, int);
+	     const char *, u_short, int, int, int);
 void	 channel_request_rforward_cancel(const char *host, u_short port);
-int	 channel_setup_remote_fwd_listener(const char *, u_short, int);
+int	 channel_setup_remote_fwd_listener(const char *, u_short, int, int, int);
 int	 channel_cancel_rport_listener(const char *, u_short);
 
 /* x11 forwarding */
 
 int	 x11_connect_display(void);
-int	 x11_create_display_inet(int, int, int, u_int *, int **);
+int	 x11_create_display_inet(int, int, int, u_int *, int **, int, int);
 void     x11_input_open(int, u_int32_t, void *);
 void	 x11_request_forwarding_with_spoofing(int, const char *, const char *,
 	    const char *);
diff -Naur openssh-4.7p1-debian/cipher-ctr-mt.c openssh-4.7p1/cipher-ctr-mt.c
--- openssh-4.7p1-debian/cipher-ctr-mt.c	1970-01-01 01:00:00.000000000 +0100
+++ openssh-4.7p1/cipher-ctr-mt.c	2008-04-02 14:10:52.000000000 +0200
@@ -0,0 +1,473 @@
+/*
+ * OpenSSH Multi-threaded AES-CTR Cipher
+ *
+ * Author: Benjamin Bennett <ben@psc.edu>
+ * Copyright (c) 2008 Pittsburgh Supercomputing Center. All rights reserved.
+ *
+ * Based on original OpenSSH AES-CTR cipher. Small portions remain unchanged,
+ * Copyright (c) 2003 Markus Friedl <markus@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+#include "includes.h"
+
+#include <sys/types.h>
+
+#include <stdarg.h>
+#include <string.h>
+
+#include <openssl/evp.h>
+
+#include "xmalloc.h"
+#include "log.h"
+
+/* compatibility with old or broken OpenSSL versions */
+#include "openbsd-compat/openssl-compat.h"
+
+#ifndef USE_BUILTIN_RIJNDAEL
+#include <openssl/aes.h>
+#endif
+
+#include <pthread.h>
+
+/*-------------------- TUNABLES --------------------*/
+/* Number of pregen threads to use */
+#define CIPHER_THREADS	2
+
+/* Number of keystream queues */
+#define NUMKQ		(CIPHER_THREADS + 2)
+
+/* Length of a keystream queue */
+#define KQLEN		4096
+
+/* Processor cacheline length */
+#define CACHELINE_LEN	64
+
+/* Collect thread stats and print at cancellation when in debug mode */
+// #define CIPHER_THREAD_STATS
+
+/* Use single-byte XOR instead of 8-byte XOR */
+// #define CIPHER_BYTE_XOR
+/*-------------------- END TUNABLES --------------------*/
+
+
+const EVP_CIPHER *evp_aes_ctr_mt(void);
+
+#ifdef CIPHER_THREAD_STATS
+/*
+ * Struct to collect thread stats
+ */
+struct thread_stats {
+	u_int	fills;
+	u_int	skips;
+	u_int	waits;
+	u_int	drains;
+};
+
+/*
+ * Debug print the thread stats
+ * Use with pthread_cleanup_push for displaying at thread cancellation
+ */
+static void
+thread_loop_stats(void *x)
+{
+	struct thread_stats *s = x;
+
+	debug("tid %lu - %u fills, %u skips, %u waits", pthread_self(),
+			s->fills, s->skips, s->waits);
+}
+
+ #define STATS_STRUCT(s)	struct thread_stats s
+ #define STATS_INIT(s)		{ memset(&s, 0, sizeof(s)); }
+ #define STATS_FILL(s)		{ s.fills++; }
+ #define STATS_SKIP(s)		{ s.skips++; }
+ #define STATS_WAIT(s)		{ s.waits++; }
+ #define STATS_DRAIN(s)		{ s.drains++; }
+#else
+ #define STATS_STRUCT(s)
+ #define STATS_INIT(s)
+ #define STATS_FILL(s)
+ #define STATS_SKIP(s)
+ #define STATS_WAIT(s)
+ #define STATS_DRAIN(s)
+#endif
+
+/* Keystream Queue state */
+enum {
+	KQINIT,
+	KQEMPTY,
+	KQFILLING,
+	KQFULL,
+	KQDRAINING
+};
+
+/* Keystream Queue struct */
+struct kq {
+	u_char		keys[KQLEN][AES_BLOCK_SIZE];
+	u_char		ctr[AES_BLOCK_SIZE];
+	u_char		pad0[CACHELINE_LEN];
+	volatile int	qstate;
+	pthread_mutex_t	lock;
+	pthread_cond_t	cond;
+	u_char		pad1[CACHELINE_LEN];
+};
+
+/* Context struct */
+struct ssh_aes_ctr_ctx
+{
+	struct kq	q[NUMKQ];
+	AES_KEY		aes_ctx;
+	STATS_STRUCT(stats);
+	u_char		aes_counter[AES_BLOCK_SIZE];
+	pthread_t	tid[CIPHER_THREADS];
+	int		state;
+	int		qidx;
+	int		ridx;
+};
+
+/* <friedl>
+ * increment counter 'ctr',
+ * the counter is of size 'len' bytes and stored in network-byte-order.
+ * (LSB at ctr[len-1], MSB at ctr[0])
+ */
+static void
+ssh_ctr_inc(u_char *ctr, u_int len)
+{
+	int i;
+
+	for (i = len - 1; i >= 0; i--)
+		if (++ctr[i])	/* continue on overflow */
+			return;
+}
+
+/*
+ * Add num to counter 'ctr'
+ */
+static void
+ssh_ctr_add(u_char *ctr, uint32_t num, u_int len)
+{
+	int i;
+	uint16_t n;
+
+	for (n = 0, i = len - 1; i >= 0 && (num || n); i--) {
+		n = ctr[i] + (num & 0xff) + n;
+		num >>= 8;
+		ctr[i] = n & 0xff;
+		n >>= 8;
+	}
+}
+
+/*
+ * Threads may be cancelled in a pthread_cond_wait, we must free the mutex
+ */
+static void
+thread_loop_cleanup(void *x)
+{
+	pthread_mutex_unlock((pthread_mutex_t *)x);
+}
+
+/*
+ * The life of a pregen thread:
+ *    Find empty keystream queues and fill them using their counter.
+ *    When done, update counter for the next fill.
+ */
+static void *
+thread_loop(void *x)
+{
+	AES_KEY key;
+	STATS_STRUCT(stats);
+	struct ssh_aes_ctr_ctx *c = x;
+	struct kq *q;
+	int i;
+	int qidx;
+
+	/* Threads stats on cancellation */
+	STATS_INIT(stats);
+#ifdef CIPHER_THREAD_STATS
+	pthread_cleanup_push(thread_loop_stats, &stats);
+#endif
+
+	/* Thread local copy of AES key */
+	memcpy(&key, &c->aes_ctx, sizeof(key));
+
+	/*
+	 * Handle the special case of startup, one thread must fill
+ 	 * the first KQ then mark it as draining. Lock held throughout.
+ 	 */
+	if (pthread_equal(pthread_self(), c->tid[0])) {
+		q = &c->q[0];
+		pthread_mutex_lock(&q->lock);
+		if (q->qstate == KQINIT) {
+			for (i = 0; i < KQLEN; i++) {
+				AES_encrypt(q->ctr, q->keys[i], &key);
+				ssh_ctr_inc(q->ctr, AES_BLOCK_SIZE);
+			}
+			ssh_ctr_add(q->ctr, KQLEN * (NUMKQ - 1), AES_BLOCK_SIZE);
+			q->qstate = KQDRAINING;
+			STATS_FILL(stats);
+			pthread_cond_broadcast(&q->cond);
+		}
+		pthread_mutex_unlock(&q->lock);
+	}
+	else 
+		STATS_SKIP(stats);
+
+	/*
+ 	 * Normal case is to find empty queues and fill them, skipping over
+ 	 * queues already filled by other threads and stopping to wait for
+ 	 * a draining queue to become empty.
+ 	 *
+ 	 * Multiple threads may be waiting on a draining queue and awoken
+ 	 * when empty.  The first thread to wake will mark it as filling,
+ 	 * others will move on to fill, skip, or wait on the next queue.
+ 	 */
+	for (qidx = 1;; qidx = (qidx + 1) % NUMKQ) {
+		/* Check if I was cancelled, also checked in cond_wait */
+		pthread_testcancel();
+
+		/* Lock queue and block if its draining */
+		q = &c->q[qidx];
+		pthread_mutex_lock(&q->lock);
+		pthread_cleanup_push(thread_loop_cleanup, &q->lock);
+		while (q->qstate == KQDRAINING || q->qstate == KQINIT) {
+			STATS_WAIT(stats);
+			pthread_cond_wait(&q->cond, &q->lock);
+		}
+		pthread_cleanup_pop(0);
+
+		/* If filling or full, somebody else got it, skip */
+		if (q->qstate != KQEMPTY) {
+			pthread_mutex_unlock(&q->lock);
+			STATS_SKIP(stats);
+			continue;
+		}
+
+		/*
+ 		 * Empty, let's fill it.
+ 		 * Queue lock is relinquished while we do this so others
+ 		 * can see that it's being filled.
+ 		 */
+		q->qstate = KQFILLING;
+		pthread_mutex_unlock(&q->lock);
+		for (i = 0; i < KQLEN; i++) {
+			AES_encrypt(q->ctr, q->keys[i], &key);
+			ssh_ctr_inc(q->ctr, AES_BLOCK_SIZE);
+		}
+
+		/* Re-lock, mark full and signal consumer */
+		pthread_mutex_lock(&q->lock);
+		ssh_ctr_add(q->ctr, KQLEN * (NUMKQ - 1), AES_BLOCK_SIZE);
+		q->qstate = KQFULL;
+		STATS_FILL(stats);
+		pthread_cond_signal(&q->cond);
+		pthread_mutex_unlock(&q->lock);
+	}
+
+#ifdef CIPHER_THREAD_STATS
+	/* Stats */
+	pthread_cleanup_pop(1);
+#endif
+
+	return NULL;
+}
+
+static int
+ssh_aes_ctr(EVP_CIPHER_CTX *ctx, u_char *dest, const u_char *src,
+    u_int len)
+{
+	struct ssh_aes_ctr_ctx *c;
+	struct kq *q, *oldq;
+	int ridx;
+	u_char *buf;
+
+	if (len == 0)
+		return (1);
+	if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) == NULL)
+		return (0);
+
+	q = &c->q[c->qidx];
+	ridx = c->ridx;
+
+	/* src already padded to block multiple */
+	while (len > 0) {
+		buf = q->keys[ridx];
+
+#ifdef CIPHER_BYTE_XOR
+		dest[0] = src[0] ^ buf[0];
+		dest[1] = src[1] ^ buf[1];
+		dest[2] = src[2] ^ buf[2];
+		dest[3] = src[3] ^ buf[3];
+		dest[4] = src[4] ^ buf[4];
+		dest[5] = src[5] ^ buf[5];
+		dest[6] = src[6] ^ buf[6];
+		dest[7] = src[7] ^ buf[7];
+		dest[8] = src[8] ^ buf[8];
+		dest[9] = src[9] ^ buf[9];
+		dest[10] = src[10] ^ buf[10];
+		dest[11] = src[11] ^ buf[11];
+		dest[12] = src[12] ^ buf[12];
+		dest[13] = src[13] ^ buf[13];
+		dest[14] = src[14] ^ buf[14];
+		dest[15] = src[15] ^ buf[15];
+#else
+		*(uint64_t *)dest = *(uint64_t *)src ^ *(uint64_t *)buf;
+		*(uint64_t *)(dest + 8) = *(uint64_t *)(src + 8) ^
+						*(uint64_t *)(buf + 8);
+#endif
+
+		dest += 16;
+		src += 16;
+		len -= 16;
+		ssh_ctr_inc(ctx->iv, AES_BLOCK_SIZE);
+
+		/* Increment read index, switch queues on rollover */
+		if ((ridx = (ridx + 1) % KQLEN) == 0) {
+			oldq = q;
+
+			/* Mark next queue draining, may need to wait */
+			c->qidx = (c->qidx + 1) % NUMKQ;
+			q = &c->q[c->qidx];
+			pthread_mutex_lock(&q->lock);
+			while (q->qstate != KQFULL) {
+				STATS_WAIT(c->stats);
+				pthread_cond_wait(&q->cond, &q->lock);
+			}
+			q->qstate = KQDRAINING;
+			pthread_mutex_unlock(&q->lock);
+
+			/* Mark consumed queue empty and signal producers */
+			pthread_mutex_lock(&oldq->lock);
+			oldq->qstate = KQEMPTY;
+			STATS_DRAIN(c->stats);
+			pthread_cond_broadcast(&oldq->cond);
+			pthread_mutex_unlock(&oldq->lock);
+		}
+	}
+	c->ridx = ridx;
+	return (1);
+}
+
+#define HAVE_NONE       0
+#define HAVE_KEY        1
+#define HAVE_IV         2
+static int
+ssh_aes_ctr_init(EVP_CIPHER_CTX *ctx, const u_char *key, const u_char *iv,
+    int enc)
+{
+	struct ssh_aes_ctr_ctx *c;
+	int i;
+
+	if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) == NULL) {
+		c = xmalloc(sizeof(*c));
+
+		c->state = HAVE_NONE;
+		for (i = 0; i < NUMKQ; i++) {
+			pthread_mutex_init(&c->q[i].lock, NULL);
+			pthread_cond_init(&c->q[i].cond, NULL);
+		}
+
+		STATS_INIT(c->stats);
+		
+		EVP_CIPHER_CTX_set_app_data(ctx, c);
+	}
+
+	if (c->state == (HAVE_KEY | HAVE_IV)) {
+		/* Cancel pregen threads */
+		for (i = 0; i < CIPHER_THREADS; i++)
+			pthread_cancel(c->tid[i]);
+		for (i = 0; i < CIPHER_THREADS; i++)
+			pthread_join(c->tid[i], NULL);
+		/* Start over getting key & iv */
+		c->state = HAVE_NONE;
+	}
+
+	if (key != NULL) {
+		AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 8,
+		    &c->aes_ctx);
+		c->state |= HAVE_KEY;
+	}
+
+	if (iv != NULL) {
+		memcpy(ctx->iv, iv, AES_BLOCK_SIZE);
+		c->state |= HAVE_IV;
+	}
+
+	if (c->state == (HAVE_KEY | HAVE_IV)) {
+		/* Clear queues */
+		memcpy(c->q[0].ctr, ctx->iv, AES_BLOCK_SIZE);
+		c->q[0].qstate = KQINIT;
+		for (i = 1; i < NUMKQ; i++) {
+			memcpy(c->q[i].ctr, ctx->iv, AES_BLOCK_SIZE);
+			ssh_ctr_add(c->q[i].ctr, i * KQLEN, AES_BLOCK_SIZE);
+			c->q[i].qstate = KQEMPTY;
+		}
+		c->qidx = 0;
+		c->ridx = 0;
+
+		/* Start threads */
+		for (i = 0; i < CIPHER_THREADS; i++) {
+			pthread_create(&c->tid[i], NULL, thread_loop, c);
+		}
+		pthread_mutex_lock(&c->q[0].lock);
+		while (c->q[0].qstate != KQDRAINING)
+			pthread_cond_wait(&c->q[0].cond, &c->q[0].lock);
+		pthread_mutex_unlock(&c->q[0].lock);
+		
+	}
+	return (1);
+}
+
+static int
+ssh_aes_ctr_cleanup(EVP_CIPHER_CTX *ctx)
+{
+	struct ssh_aes_ctr_ctx *c;
+	int i;
+
+	if ((c = EVP_CIPHER_CTX_get_app_data(ctx)) != NULL) {
+#ifdef CIPHER_THREAD_STATS
+		debug("main thread: %u drains, %u waits", c->stats.drains,
+				c->stats.waits);
+#endif
+		/* Cancel pregen threads */
+		for (i = 0; i < CIPHER_THREADS; i++)
+			pthread_cancel(c->tid[i]);
+		for (i = 0; i < CIPHER_THREADS; i++)
+			pthread_join(c->tid[i], NULL);
+
+		memset(c, 0, sizeof(*c));
+		xfree(c);
+		EVP_CIPHER_CTX_set_app_data(ctx, NULL);
+	}
+	return (1);
+}
+
+/* <friedl> */
+const EVP_CIPHER *
+evp_aes_ctr_mt(void)
+{
+	static EVP_CIPHER aes_ctr;
+
+	memset(&aes_ctr, 0, sizeof(EVP_CIPHER));
+	aes_ctr.nid = NID_undef;
+	aes_ctr.block_size = AES_BLOCK_SIZE;
+	aes_ctr.iv_len = AES_BLOCK_SIZE;
+	aes_ctr.key_len = 16;
+	aes_ctr.init = ssh_aes_ctr_init;
+	aes_ctr.cleanup = ssh_aes_ctr_cleanup;
+	aes_ctr.do_cipher = ssh_aes_ctr;
+#ifndef SSH_OLD_EVP
+	aes_ctr.flags = EVP_CIPH_CBC_MODE | EVP_CIPH_VARIABLE_LENGTH |
+	    EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_IV;
+#endif
+	return (&aes_ctr);
+}
diff -Naur openssh-4.7p1-debian/cipher.c openssh-4.7p1/cipher.c
--- openssh-4.7p1-debian/cipher.c	2006-08-05 04:39:39.000000000 +0200
+++ openssh-4.7p1/cipher.c	2008-04-02 14:10:52.000000000 +0200
@@ -55,6 +55,7 @@
 extern const EVP_CIPHER *evp_ssh1_3des(void);
 extern void ssh1_3des_iv(EVP_CIPHER_CTX *, int, u_char *, int);
 extern const EVP_CIPHER *evp_aes_128_ctr(void);
+extern const EVP_CIPHER *evp_aes_ctr_mt(void);
 extern void ssh_aes_ctr_iv(EVP_CIPHER_CTX *, int, u_char *, u_int);
 
 struct Cipher {
@@ -81,9 +82,9 @@
 	{ "aes256-cbc",		SSH_CIPHER_SSH2, 16, 32, 0, EVP_aes_256_cbc },
 	{ "rijndael-cbc@lysator.liu.se",
 				SSH_CIPHER_SSH2, 16, 32, 0, EVP_aes_256_cbc },
-	{ "aes128-ctr",		SSH_CIPHER_SSH2, 16, 16, 0, evp_aes_128_ctr },
-	{ "aes192-ctr",		SSH_CIPHER_SSH2, 16, 24, 0, evp_aes_128_ctr },
-	{ "aes256-ctr",		SSH_CIPHER_SSH2, 16, 32, 0, evp_aes_128_ctr },
+	{ "aes128-ctr",		SSH_CIPHER_SSH2, 16, 16, 0, evp_aes_ctr_mt },
+	{ "aes192-ctr",		SSH_CIPHER_SSH2, 16, 24, 0, evp_aes_ctr_mt },
+	{ "aes256-ctr",		SSH_CIPHER_SSH2, 16, 32, 0, evp_aes_ctr_mt },
 #ifdef USE_CIPHER_ACSS
 	{ "acss@openssh.org",	SSH_CIPHER_SSH2, 16, 5, 0, EVP_acss },
 #endif
@@ -156,7 +157,8 @@
 	for ((p = strsep(&cp, CIPHER_SEP)); p && *p != '\0';
 	    (p = strsep(&cp, CIPHER_SEP))) {
 		c = cipher_by_name(p);
-		if (c == NULL || c->number != SSH_CIPHER_SSH2) {
+		if (c == NULL || (c->number != SSH_CIPHER_SSH2 && 
+c->number != SSH_CIPHER_NONE)) {
 			debug("bad cipher %s [%s]", p, names);
 			xfree(cipher_list);
 			return 0;
@@ -330,6 +332,7 @@
 	int evplen;
 
 	switch (c->number) {
+	case SSH_CIPHER_NONE:
 	case SSH_CIPHER_SSH2:
 	case SSH_CIPHER_DES:
 	case SSH_CIPHER_BLOWFISH:
@@ -364,6 +367,7 @@
 	int evplen = 0;
 
 	switch (c->number) {
+	case SSH_CIPHER_NONE:
 	case SSH_CIPHER_SSH2:
 	case SSH_CIPHER_DES:
 	case SSH_CIPHER_BLOWFISH:
diff -Naur openssh-4.7p1-debian/clientloop.c openssh-4.7p1/clientloop.c
--- openssh-4.7p1-debian/clientloop.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/clientloop.c	2008-04-02 14:10:52.000000000 +0200
@@ -915,13 +915,16 @@
 
 	set_nonblock(client_fd);
 
+	if (options.hpn_disabled) 
 	window = CHAN_SES_WINDOW_DEFAULT;
+	else
+	  window = options.hpn_buffer_size;
+
 	packetmax = CHAN_SES_PACKET_DEFAULT;
 	if (cctx->want_tty) {
 		window >>= 1;
 		packetmax >>= 1;
 	}
-	
 	c = channel_new("session", SSH_CHANNEL_OPENING,
 	    new_fd[0], new_fd[1], new_fd[2], window, packetmax,
 	    CHAN_EXTENDED_WRITE, "client-session", /*nonblock*/0);
@@ -1023,7 +1026,8 @@
 		if (local) {
 			if (channel_setup_local_fwd_listener(fwd.listen_host,
 			    fwd.listen_port, fwd.connect_host,
-			    fwd.connect_port, options.gateway_ports) < 0) {
+			    fwd.connect_port, options.gateway_ports, 
+			    options.hpn_disabled, options.hpn_buffer_size) < 0) {
 				logit("Port forwarding failed.");
 				goto out;
 			}
@@ -1724,10 +1728,16 @@
 		xfree(listen_address);
 		return NULL;
 	}
-	c = channel_new("forwarded-tcpip",
-	    SSH_CHANNEL_CONNECTING, sock, sock, -1,
-	    CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0,
-	    originator_address, 1);
+	if (options.hpn_disabled)
+		c = channel_new("forwarded-tcpip",
+		    SSH_CHANNEL_CONNECTING, sock, sock, -1,
+		    CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0,
+		    originator_address, 1);
+	else
+		c = channel_new("forwarded-tcpip",
+		    SSH_CHANNEL_CONNECTING, sock, sock, -1,
+		    options.hpn_buffer_size, options.hpn_buffer_size, 0,
+		    originator_address, 1);
 	xfree(originator_address);
 	xfree(listen_address);
 	return c;
@@ -1761,9 +1771,15 @@
 	sock = x11_connect_display();
 	if (sock < 0)
 		return NULL;
+	/* again is this really necessary for X11? */
+	if (options.hpn_disabled) 
 	c = channel_new("x11",
 	    SSH_CHANNEL_X11_OPEN, sock, sock, -1,
 	    CHAN_TCP_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT, 0, "x11", 1);
+	else 
+		c = channel_new("x11",
+		    SSH_CHANNEL_X11_OPEN, sock, sock, -1,
+		    options.hpn_buffer_size, CHAN_X11_PACKET_DEFAULT, 0, "x11", 1);
 	c->force_drain = 1;
 	return c;
 }
@@ -1782,10 +1798,17 @@
 	sock = ssh_get_authentication_socket();
 	if (sock < 0)
 		return NULL;
-	c = channel_new("authentication agent connection",
-	    SSH_CHANNEL_OPEN, sock, sock, -1,
-	    CHAN_X11_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0,
-	    "authentication agent connection", 1);
+	/* not sure this is really needed here either */
+	if (options.hpn_disabled)
+		c = channel_new("authentication agent connection",
+		    SSH_CHANNEL_OPEN, sock, sock, -1,
+		    CHAN_X11_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0,
+		    "authentication agent connection", 1);
+	else
+		c = channel_new("authentication agent connection",
+		    SSH_CHANNEL_OPEN, sock, sock, -1,
+		    options.hpn_buffer_size, options.hpn_buffer_size, 0,
+		    "authentication agent connection", 1);
 	c->force_drain = 1;
 	return c;
 }
@@ -1812,10 +1835,18 @@
 		return -1;
 	}
 
+	if(options.hpn_disabled)
 	c = channel_new("tun", SSH_CHANNEL_OPENING, fd, fd, -1,
-	    CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0, "tun", 1);
+				CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT,
+				0, "tun", 1);
+	else
+	c = channel_new("tun", SSH_CHANNEL_OPENING, fd, fd, -1,
+				options.hpn_buffer_size, CHAN_TCP_PACKET_DEFAULT,
+				0, "tun", 1);
 	c->datagram = 1;
 
+
+
 #if defined(SSH_TUN_FILTER)
 	if (options.tun_open == SSH_TUNMODE_POINTOPOINT)
 		channel_register_filter(c->self, sys_tun_infilter,
diff -Naur openssh-4.7p1-debian/compat.c openssh-4.7p1/compat.c
--- openssh-4.7p1-debian/compat.c	2007-01-05 06:26:46.000000000 +0100
+++ openssh-4.7p1/compat.c	2008-04-02 14:10:52.000000000 +0200
@@ -169,6 +169,15 @@
 		    strlen(check[i].pat), 0) == 1) {
 			debug("match: %s pat %s", version, check[i].pat);
 			datafellows = check[i].bugs;
+			/* Check to see if the remote side is OpenSSH and not HPN */
+			if(strstr(version,"OpenSSH") != NULL)
+			{
+				if (strstr(version,"hpn") == NULL)
+				{
+					datafellows |= SSH_BUG_LARGEWINDOW;
+					debug("Remote is NON-HPN aware");
+				}
+			}
 			return;
 		}
 	}
diff -Naur openssh-4.7p1-debian/compat.h openssh-4.7p1/compat.h
--- openssh-4.7p1-debian/compat.h	2007-01-05 06:26:46.000000000 +0100
+++ openssh-4.7p1/compat.h	2008-04-02 14:10:52.000000000 +0200
@@ -57,6 +57,7 @@
 #define SSH_BUG_FIRSTKEX	0x00800000
 #define SSH_OLD_FORWARD_ADDR	0x01000000
 #define SSH_BUG_RFWD_ADDR	0x02000000
+#define SSH_BUG_LARGEWINDOW     0x04000000
 
 void     enable_compat13(void);
 void     enable_compat20(void);
diff -Naur openssh-4.7p1-debian/debian/changelog openssh-4.7p1/debian/changelog
--- openssh-4.7p1-debian/debian/changelog	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/debian/changelog	2008-04-02 14:12:40.000000000 +0200
@@ -1,3 +1,9 @@
+openssh (1:4.7p1-5-hpn13v1) unstable; urgency=low
+
+  * Integrates HPN-SSH patch
+
+ -- Philippe Teuwen <phil a teuwen o org>  Wed, 02 Apr 2008 12:37:00 +0000
+
 openssh (1:4.7p1-5) unstable; urgency=low
 
   * Recommends: xauth rather than Suggests: xbase-clients.
diff -Naur openssh-4.7p1-debian/kex.c openssh-4.7p1/kex.c
--- openssh-4.7p1-debian/kex.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/kex.c	2008-04-02 14:10:52.000000000 +0200
@@ -48,6 +48,7 @@
 #include "match.h"
 #include "dispatch.h"
 #include "monitor.h"
+#include "canohost.h"
 
 #ifdef GSSAPI
 #include "ssh-gss.h"
@@ -68,7 +69,8 @@
 static void kex_choose_conf(Kex *);
 
 /* put algorithm proposal into buffer */
-static void
+/* used in sshconnect.c as well as kex.c */
+void
 kex_prop2buf(Buffer *b, char *proposal[PROPOSAL_MAX])
 {
 	u_int i;
@@ -394,6 +396,13 @@
 	int nenc, nmac, ncomp;
 	u_int mode, ctos, need;
 	int first_kex_follows, type;
+	int log_flag = 0;
+
+	int auth_flag;
+
+	auth_flag = packet_authentication_state();
+
+	debug ("AUTH STATE IS %d", auth_flag);
 
 	my   = kex_buf2prop(&kex->my, NULL);
 	peer = kex_buf2prop(&kex->peer, &first_kex_follows);
@@ -418,11 +427,34 @@
 		choose_enc (&newkeys->enc,  cprop[nenc],  sprop[nenc]);
 		choose_mac (&newkeys->mac,  cprop[nmac],  sprop[nmac]);
 		choose_comp(&newkeys->comp, cprop[ncomp], sprop[ncomp]);
+		debug("REQUESTED ENC.NAME is '%s'", newkeys->enc.name);
+		if (strcmp(newkeys->enc.name, "none") == 0) {
+				debug("Requesting NONE. Authflag is %d", auth_flag);			
+			if (auth_flag == 1) {
+				debug("None requested post authentication.");
+			} else {
+				fatal("Pre-authentication none cipher requests are not allowed.");
+			}
+		} 
 		debug("kex: %s %s %s %s",
 		    ctos ? "client->server" : "server->client",
 		    newkeys->enc.name,
 		    newkeys->mac.name,
 		    newkeys->comp.name);
+		/* client starts withctos = 0 && log flag = 0 and no log*/
+		/* 2nd client pass ctos=1 and flag = 1 so no log*/
+		/* server starts with ctos =1 && log_flag = 0 so log */
+		/* 2nd sever pass ctos = 1 && log flag = 1 so no log*/
+		/* -cjr*/
+		if (ctos && !log_flag) {
+			logit("SSH: Server;Ltype: Kex;Remote: %s-%d;Enc: %s;MAC: %s;Comp: %s",
+			      get_remote_ipaddr(),
+			      get_remote_port(),
+			      newkeys->enc.name,
+			      newkeys->mac.name,
+			      newkeys->comp.name);
+		}
+		log_flag = 1;
 	}
 	choose_kex(kex, cprop[PROPOSAL_KEX_ALGS], sprop[PROPOSAL_KEX_ALGS]);
 	choose_hostkeyalg(kex, cprop[PROPOSAL_SERVER_HOST_KEY_ALGS],
diff -Naur openssh-4.7p1-debian/kex.h openssh-4.7p1/kex.h
--- openssh-4.7p1-debian/kex.h	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/kex.h	2008-04-02 14:10:52.000000000 +0200
@@ -135,6 +135,8 @@
 	void	(*kex[KEX_MAX])(Kex *);
 };
 
+void kex_prop2buf(Buffer *, char *proposal[PROPOSAL_MAX]);
+
 Kex	*kex_setup(char *[PROPOSAL_MAX]);
 void	 kex_finish(Kex *);
 
diff -Naur openssh-4.7p1-debian/myproposal.h openssh-4.7p1/myproposal.h
--- openssh-4.7p1-debian/myproposal.h	2007-06-11 06:01:42.000000000 +0200
+++ openssh-4.7p1/myproposal.h	2008-04-02 14:10:52.000000000 +0200
@@ -46,6 +46,8 @@
 	"arcfour128,arcfour256,arcfour," \
 	"aes192-cbc,aes256-cbc,rijndael-cbc@lysator.liu.se," \
 	"aes128-ctr,aes192-ctr,aes256-ctr"
+#define KEX_ENCRYPT_INCLUDE_NONE KEX_DEFAULT_ENCRYPT \
+	",none"
 #define	KEX_DEFAULT_MAC \
 	"hmac-md5,hmac-sha1,umac-64@openssh.com,hmac-ripemd160," \
 	"hmac-ripemd160@openssh.com," \
diff -Naur openssh-4.7p1-debian/packet.c openssh-4.7p1/packet.c
--- openssh-4.7p1-debian/packet.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/packet.c	2008-04-02 14:10:52.000000000 +0200
@@ -713,7 +713,7 @@
 /*
  * Finalize packet in SSH2 format (compress, mac, encrypt, enqueue)
  */
-static void
+static int
 packet_send2_wrapped(void)
 {
 	u_char type, *cp, *macbuf = NULL;
@@ -825,11 +825,13 @@
 		set_newkeys(MODE_OUT);
 	else if (type == SSH2_MSG_USERAUTH_SUCCESS && server_side)
 		packet_enable_delayed_compress();
+	return(packet_length);
 }
 
-static void
+static int
 packet_send2(void)
 {
+        static int packet_length = 0;
 	static int rekeying = 0;
 	struct packet *p;
 	u_char type, *cp;
@@ -847,7 +849,7 @@
 			memcpy(&p->payload, &outgoing_packet, sizeof(Buffer));
 			buffer_init(&outgoing_packet);
 			TAILQ_INSERT_TAIL(&outgoing, p, next);
-			return;
+			return(sizeof(Buffer));
 		}
 	}
 
@@ -855,7 +857,7 @@
 	if (type == SSH2_MSG_KEXINIT)
 		rekeying = 1;
 
-	packet_send2_wrapped();
+	packet_length = packet_send2_wrapped();
 
 	/* after a NEWKEYS message we can send the complete queue */
 	if (type == SSH2_MSG_NEWKEYS) {
@@ -868,19 +870,22 @@
 			    sizeof(Buffer));
 			TAILQ_REMOVE(&outgoing, p, next);
 			xfree(p);
-			packet_send2_wrapped();
+			packet_length += packet_send2_wrapped();
 		}
 	}
+	return(packet_length);
 }
 
-void
+int
 packet_send(void)
 {
+  int packet_len = 0;
 	if (compat20)
-		packet_send2();
+		packet_len = packet_send2();
 	else
 		packet_send1();
 	DBG(debug("packet_send done"));
+	return(packet_len);
 }
 
 /*
@@ -1429,21 +1434,23 @@
 
 /* Checks if there is any buffered output, and tries to write some of the output. */
 
-void
+int
 packet_write_poll(void)
 {
-	int len = buffer_len(&output);
+	int len = 0;
+	len = buffer_len(&output);
 
 	if (len > 0) {
 		len = write(connection_out, buffer_ptr(&output), len);
 		if (len <= 0) {
 			if (errno == EAGAIN)
-				return;
+			  return (0);
 			else
 				fatal("Write failed: %.100s", strerror(errno));
 		}
 		buffer_consume(&output, len);
 	}
+	return(len);
 }
 
 /*
@@ -1451,14 +1458,15 @@
  * written.
  */
 
-void
+int
 packet_write_wait(void)
 {
 	fd_set *setp;
+	u_int bytes_sent = 0;
 
 	setp = (fd_set *)xcalloc(howmany(connection_out + 1, NFDBITS),
 	    sizeof(fd_mask));
-	packet_write_poll();
+	bytes_sent += packet_write_poll();
 	while (packet_have_data_to_write()) {
 		memset(setp, 0, howmany(connection_out + 1, NFDBITS) *
 		    sizeof(fd_mask));
@@ -1466,9 +1474,10 @@
 		while (select(connection_out + 1, NULL, setp, NULL, NULL) == -1 &&
 		    (errno == EAGAIN || errno == EINTR))
 			;
-		packet_write_poll();
+		bytes_sent += packet_write_poll();
 	}
 	xfree(setp);
+	return (bytes_sent);
 }
 
 /* Returns true if there is buffered data to write to the connection. */
@@ -1590,12 +1599,24 @@
 	}
 }
 
+int rekey_requested = 0;
+void
+packet_request_rekeying(void)
+{
+	rekey_requested = 1;
+}
+
 #define MAX_PACKETS	(1U<<31)
 int
 packet_need_rekeying(void)
 {
 	if (datafellows & SSH_BUG_NOREKEY)
 		return 0;
+	if (rekey_requested == 1)
+	{
+		rekey_requested = 0;
+		return 1;
+	}
 	return
 	    (p_send.packets > MAX_PACKETS) ||
 	    (p_read.packets > MAX_PACKETS) ||
@@ -1620,3 +1641,9 @@
 {
 	after_authentication = 1;
 }
+
+int
+packet_authentication_state(void)
+{
+	return(after_authentication);
+}
diff -Naur openssh-4.7p1-debian/packet.h openssh-4.7p1/packet.h
--- openssh-4.7p1-debian/packet.h	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/packet.h	2008-04-02 14:10:52.000000000 +0200
@@ -20,6 +20,7 @@
 
 #include <openssl/bn.h>
 
+void     packet_request_rekeying(void);
 void     packet_set_connection(int, int, int);
 void     packet_set_nonblocking(void);
 int      packet_get_connection_in(void);
@@ -34,6 +35,7 @@
 int      packet_is_interactive(void);
 void     packet_set_server(void);
 void     packet_set_authenticated(void);
+int	 packet_authentication_state(void);
 
 void     packet_start(u_char);
 void     packet_put_char(int ch);
@@ -43,7 +45,7 @@
 void     packet_put_string(const void *buf, u_int len);
 void     packet_put_cstring(const char *str);
 void     packet_put_raw(const void *buf, u_int len);
-void     packet_send(void);
+int      packet_send(void);
 
 int      packet_read(void);
 void     packet_read_expect(int type);
@@ -71,8 +73,8 @@
 int	 packet_get_ssh1_cipher(void);
 void	 packet_set_iv(int, u_char *);
 
-void     packet_write_poll(void);
-void     packet_write_wait(void);
+int      packet_write_poll(void);
+int      packet_write_wait(void);
 int      packet_have_data_to_write(void);
 int      packet_not_very_much_data_to_write(void);
 
diff -Naur openssh-4.7p1-debian/readconf.c openssh-4.7p1/readconf.c
--- openssh-4.7p1-debian/readconf.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/readconf.c	2008-04-02 14:10:52.000000000 +0200
@@ -135,6 +135,8 @@
 	oSendEnv, oControlPath, oControlMaster, oHashKnownHosts,
 	oTunnel, oTunnelDevice, oLocalCommand, oPermitLocalCommand,
 	oProtocolKeepAlives, oSetupTimeOut,
+	oNoneEnabled, oTcpRcvBufPoll, oTcpRcvBuf, oNoneSwitch, oHPNDisabled,
+	oHPNBufferSize,
 	oDeprecated, oUnsupported
 } OpCodes;
 
@@ -237,6 +239,12 @@
 	{ "permitlocalcommand", oPermitLocalCommand },
 	{ "protocolkeepalives", oProtocolKeepAlives },
 	{ "setuptimeout", oSetupTimeOut },
+	{ "noneenabled", oNoneEnabled },
+	{ "tcprcvbufpoll", oTcpRcvBufPoll },
+	{ "tcprcvbuf", oTcpRcvBuf },
+	{ "noneswitch", oNoneSwitch },
+	{ "hpndisabled", oHPNDisabled },
+	{ "hpnbuffersize", oHPNBufferSize },
 	{ NULL, oBadOption }
 };
 
@@ -472,6 +480,37 @@
 		intptr = &options->check_host_ip;
 		goto parse_flag;
 
+	case oNoneEnabled:
+		intptr = &options->none_enabled;
+		goto parse_flag;
+ 
+	/* we check to see if the command comes from the */
+	/* command line or not. If it does then enable it */
+	/* otherwise fail. NONE should never be a default configuration */
+	case oNoneSwitch:
+		if(strcmp(filename,"command-line")==0)
+		{		
+		    intptr = &options->none_switch;
+		    goto parse_flag;
+		} else {
+		    error("NoneSwitch is found in %.200s.\nYou may only use this configuration option from the command line", filename);
+		    error("Continuing...");
+		    debug("NoneSwitch directive found in %.200s.", filename);
+		    return 0;
+	        }
+
+	case oHPNDisabled:
+		intptr = &options->hpn_disabled;
+		goto parse_flag;
+
+	case oHPNBufferSize:
+		intptr = &options->hpn_buffer_size;
+		goto parse_int;
+
+	case oTcpRcvBufPoll:
+		intptr = &options->tcp_rcv_buf_poll;
+		goto parse_flag;
+
 	case oVerifyHostKeyDNS:
 		intptr = &options->verify_host_key_dns;
 		goto parse_yesnoask;
@@ -651,6 +690,10 @@
 		intptr = &options->connection_attempts;
 		goto parse_int;
 
+	case oTcpRcvBuf:
+		intptr = &options->tcp_rcv_buf;
+		goto parse_int;
+
 	case oCipher:
 		intptr = &options->cipher;
 		arg = strdelim(&s);
@@ -1111,6 +1154,12 @@
 	options->tun_remote = -1;
 	options->local_command = NULL;
 	options->permit_local_command = -1;
+	options->none_switch = -1;
+	options->none_enabled = -1;
+	options->hpn_disabled = -1;
+	options->hpn_buffer_size = -1;
+	options->tcp_rcv_buf_poll = -1;
+	options->tcp_rcv_buf = -1;
 }
 
 /*
@@ -1242,6 +1291,29 @@
 	}
 	if (options->server_alive_count_max == -1)
 		options->server_alive_count_max = 3;
+	if (options->none_switch == -1)
+	        options->none_switch = 0;
+	if (options->hpn_disabled == -1)
+	        options->hpn_disabled = 0;
+	if (options->hpn_buffer_size > -1)
+	{
+	  /* if a user tries to set the size to 0 set it to 1KB */
+		if (options->hpn_buffer_size == 0)
+		options->hpn_buffer_size = 1024;
+		/*limit the buffer to 64MB*/
+		if (options->hpn_buffer_size > 65536)
+		{
+			options->hpn_buffer_size = 65536*1024;
+			debug("User requested buffer larger than 64MB. Request reverted to 64MB");
+		}
+		debug("hpn_buffer_size set to %d", options->hpn_buffer_size);
+	}
+	if (options->tcp_rcv_buf == 0)
+		options->tcp_rcv_buf = 1;
+	if (options->tcp_rcv_buf > -1) 
+		options->tcp_rcv_buf *=1024;
+	if (options->tcp_rcv_buf_poll == -1)
+		options->tcp_rcv_buf_poll = 1;
 	if (options->control_master == -1)
 		options->control_master = 0;
 	if (options->hash_known_hosts == -1)
diff -Naur openssh-4.7p1-debian/readconf.h openssh-4.7p1/readconf.h
--- openssh-4.7p1-debian/readconf.h	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/readconf.h	2008-04-02 14:10:52.000000000 +0200
@@ -59,6 +59,12 @@
 					 * (best). */
 	int     tcp_keep_alive;	/* Set SO_KEEPALIVE. */
 	int     setuptimeout;	/* timeout in the protocol banner exchange */
+
+	int     tcp_rcv_buf; /* user switch to set tcp recv buffer */
+	int     tcp_rcv_buf_poll; /* Option to poll recv buf every window transfer */
+	int     hpn_disabled;    /* Switch to disable HPN buffer management */
+	int     hpn_buffer_size; /* User definable size for HPN buffer window */
+
 	LogLevel log_level;	/* Level for logging. */
 
 	int     port;		/* Port to connect. */
@@ -104,6 +110,8 @@
 
 	int	enable_ssh_keysign;
 	int	rekey_limit;
+	int	none_switch;	/* Use none cipher */
+	int	none_enabled;	/* Allow none to be used */
 	int	no_host_authentication_for_localhost;
 	int	identities_only;
 	int	server_alive_interval;
diff -Naur openssh-4.7p1-debian/scp.c openssh-4.7p1/scp.c
--- openssh-4.7p1-debian/scp.c	2007-08-08 06:29:58.000000000 +0200
+++ openssh-4.7p1/scp.c	2008-04-02 14:10:52.000000000 +0200
@@ -585,7 +585,7 @@
 	off_t i, amt, statbytes;
 	size_t result;
 	int fd = -1, haderr, indx;
-	char *last, *name, buf[2048], encname[MAXPATHLEN];
+	char *last, *name, buf[16384], encname[MAXPATHLEN];
 	int len;
 
 	for (indx = 0; indx < argc; ++indx) {
@@ -645,7 +645,7 @@
 		(void) atomicio(vwrite, remout, buf, strlen(buf));
 		if (response() < 0)
 			goto next;
-		if ((bp = allocbuf(&buffer, fd, 2048)) == NULL) {
+		if ((bp = allocbuf(&buffer, fd, sizeof(buf))) == NULL) {
 next:			if (fd != -1) {
 				(void) close(fd);
 				fd = -1;
@@ -813,7 +813,7 @@
 	mode_t mode, omode, mask;
 	off_t size, statbytes;
 	int setimes, targisdir, wrerrno = 0;
-	char ch, *cp, *np, *targ, *why, *vect[1], buf[2048];
+	char ch, *cp, *np, *targ, *why, *vect[1], buf[16384];
 	struct timeval tv[2];
 
 #define	atime	tv[0]
@@ -974,7 +974,7 @@
 			continue;
 		}
 		(void) atomicio(vwrite, remout, "", 1);
-		if ((bp = allocbuf(&buffer, ofd, 4096)) == NULL) {
+		if ((bp = allocbuf(&buffer, ofd, sizeof(buf))) == NULL) {
 			(void) close(ofd);
 			continue;
 		}
@@ -984,8 +984,8 @@
 		statbytes = 0;
 		if (showprogress)
 			start_progress_meter(curfile, size, &statbytes);
-		for (count = i = 0; i < size; i += 4096) {
-			amt = 4096;
+		for (count = i = 0; i < size; i += sizeof(buf)) {
+			amt = sizeof(buf);
 			if (i + amt > size)
 				amt = size - i;
 			count += amt;
@@ -1002,7 +1002,7 @@
 			} while (amt > 0);
 
 			if (limit_rate)
-				bwlimit(4096);
+				bwlimit(sizeof(buf));
 
 			if (count == bp->cnt) {
 				/* Keep reading so we stay sync'd up. */
diff -Naur openssh-4.7p1-debian/servconf.c openssh-4.7p1/servconf.c
--- openssh-4.7p1-debian/servconf.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/servconf.c	2008-04-02 14:10:52.000000000 +0200
@@ -124,11 +124,19 @@
 	options->permit_tun = -1;
 	options->num_permitted_opens = -1;
 	options->adm_forced_command = NULL;
+        options->none_enabled = -1;
+        options->tcp_rcv_buf_poll = -1;
+        options->hpn_disabled = -1;
+        options->hpn_buffer_size = -1;
 }
 
 void
 fill_default_server_options(ServerOptions *options)
 {
+	int sock;
+	int socksize;
+	int socksizelen = sizeof(int);
+
 	/* Portable-specific options */
 	if (options->use_pam == -1)
 		options->use_pam = 0;
@@ -256,6 +264,42 @@
 	if (options->permit_tun == -1)
 		options->permit_tun = SSH_TUNMODE_NO;
 
+	if (options->hpn_disabled == -1) 
+		options->hpn_disabled = 0;
+
+	if (options->hpn_buffer_size == -1) {
+		/* option not explicitly set. Now we have to figure out */
+		/* what value to use */
+		if (options->hpn_disabled == 1) {
+			options->hpn_buffer_size = CHAN_SES_WINDOW_DEFAULT;
+		} else {
+			/* get the current RCV size and set it to that */
+			/*create a socket but don't connect it */
+			/* we use that the get the rcv socket size */
+			sock = socket(AF_INET, SOCK_STREAM, 0);
+			getsockopt(sock, SOL_SOCKET, SO_RCVBUF, 
+				   &socksize, &socksizelen);
+			close(sock);
+			options->hpn_buffer_size = socksize;
+			debug ("HPN Buffer Size: %d", options->hpn_buffer_size);
+			
+		} 
+	} else {
+		/* we have to do this incase the user sets both values in a contradictory */
+		/* manner. hpn_disabled overrrides hpn_buffer_size*/
+		if (options->hpn_disabled <= 0) {
+			if (options->hpn_buffer_size == 0)
+				options->hpn_buffer_size = 1;
+			/* limit the maximum buffer to 64MB */
+			if (options->hpn_buffer_size > 64*1024) {
+				options->hpn_buffer_size = 64*1024*1024;
+			} else {
+				options->hpn_buffer_size *= 1024;
+			}
+		} else
+			options->hpn_buffer_size = CHAN_TCP_WINDOW_DEFAULT;
+	}
+
 	/* Turn privilege separation on by default */
 	if (use_privsep == -1)
 		use_privsep = 1;
@@ -300,7 +344,8 @@
 	sGssKeyEx,
 	sAcceptEnv, sPermitTunnel,
 	sMatch, sPermitOpen, sForceCommand,
-	sUsePrivilegeSeparation,
+	sUsePrivilegeSeparation, sNoneEnabled, sTcpRcvBufPoll, 
+        sHPNDisabled, sHPNBufferSize,
 	sDeprecated, sUnsupported
 } ServerOpCodes;
 
@@ -419,6 +464,10 @@
  	{ "match", sMatch, SSHCFG_ALL },
 	{ "permitopen", sPermitOpen, SSHCFG_ALL },
 	{ "forcecommand", sForceCommand, SSHCFG_ALL },
+        { "noneenabled", sNoneEnabled },
+        { "hpndisabled", sHPNDisabled },
+        { "hpnbuffersize", sHPNBufferSize },
+        { "tcprcvbufpoll", sTcpRcvBufPoll },
 	{ NULL, sBadOption, 0 }
 };
 
@@ -434,6 +483,7 @@
 
 	for (i = 0; keywords[i].name; i++)
 		if (strcasecmp(cp, keywords[i].name) == 0) {
+		        debug ("Config token is %s", keywords[i].name);
 			*flags = keywords[i].flags;
 			return keywords[i].opcode;
 		}
@@ -843,6 +893,22 @@
 			*intptr = value;
 		break;
 
+	case sNoneEnabled:
+		intptr = &options->none_enabled;
+		goto parse_flag;
+
+	case sTcpRcvBufPoll:
+		intptr = &options->tcp_rcv_buf_poll;
+		goto parse_flag;
+
+	case sHPNDisabled:
+		intptr = &options->hpn_disabled;
+		goto parse_flag;
+
+	case sHPNBufferSize:
+		intptr = &options->hpn_buffer_size;
+		goto parse_int;
+
 	case sIgnoreUserKnownHosts:
 		intptr = &options->ignore_user_known_hosts;
 		goto parse_flag;
diff -Naur openssh-4.7p1-debian/servconf.h openssh-4.7p1/servconf.h
--- openssh-4.7p1-debian/servconf.h	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/servconf.h	2008-04-02 14:10:52.000000000 +0200
@@ -139,6 +139,10 @@
 	char   *adm_forced_command;
 
 	int	use_pam;		/* Enable auth via PAM */
+        int     none_enabled;           /* enable NONE cipher switch */
+        int     tcp_rcv_buf_poll;       /* poll tcp rcv window in autotuning kernels*/
+	int	hpn_disabled;		/* disable hpn functionality. false by default */
+	int	hpn_buffer_size;	/* set the hpn buffer size - default 3MB */
 
 	int	permit_tun;
 
diff -Naur openssh-4.7p1-debian/serverloop.c openssh-4.7p1/serverloop.c
--- openssh-4.7p1-debian/serverloop.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/serverloop.c	2008-04-02 14:10:52.000000000 +0200
@@ -92,10 +92,10 @@
 static int fdout;		/* Descriptor for stdout (for reading);
 				   May be same number as fdin. */
 static int fderr;		/* Descriptor for stderr.  May be -1. */
-static long stdin_bytes = 0;	/* Number of bytes written to stdin. */
-static long stdout_bytes = 0;	/* Number of stdout bytes sent to client. */
-static long stderr_bytes = 0;	/* Number of stderr bytes sent to client. */
-static long fdout_bytes = 0;	/* Number of stdout bytes read from program. */
+static u_long stdin_bytes = 0;	/* Number of bytes written to stdin. */
+static u_long stdout_bytes = 0;	/* Number of stdout bytes sent to client. */
+static u_long stderr_bytes = 0;	/* Number of stderr bytes sent to client. */
+static u_long fdout_bytes = 0;	/* Number of stdout bytes read from program. */
 static int stdin_eof = 0;	/* EOF message received from client. */
 static int fdout_eof = 0;	/* EOF encountered reading from fdout. */
 static int fderr_eof = 0;	/* EOF encountered readung from fderr. */
@@ -120,6 +120,20 @@
 static void server_init_dispatch(void);
 
 /*
+ * Returns current time in seconds from Jan 1, 1970 with the maximum
+ * available resolution.
+ */
+
+static double
+get_current_time(void)
+{
+	struct timeval tv;
+	gettimeofday(&tv, NULL);
+	return (double) tv.tv_sec + (double) tv.tv_usec / 1000000.0;
+}
+
+
+/*
  * we write to this pipe if a SIGCHLD is caught in order to avoid
  * the race between select() and child_terminated
  */
@@ -408,6 +422,7 @@
 		} else {
 			/* Buffer any received data. */
 			packet_process_incoming(buf, len);
+			fdout_bytes += len;
 		}
 	}
 	if (compat20)
@@ -430,6 +445,7 @@
 		} else {
 			buffer_append(&stdout_buffer, buf, len);
 			fdout_bytes += len;
+			debug ("FD out now: %ld", fdout_bytes);
 		}
 	}
 	/* Read and buffer any available stderr data from the program. */
@@ -496,7 +512,7 @@
 	}
 	/* Send any buffered packet data to the client. */
 	if (FD_ISSET(connection_out, writeset))
-		packet_write_poll();
+		stdin_bytes += packet_write_poll();
 }
 
 /*
@@ -813,8 +829,10 @@
 {
 	fd_set *readset = NULL, *writeset = NULL;
 	int rekeying = 0, max_fd, nalloc = 0;
+	double start_time, total_time;
 
 	debug("Entering interactive session for SSH2.");
+	start_time = get_current_time();
 
 	mysignal(SIGCHLD, sigchld_handler);
 	child_terminated = 0;
@@ -876,6 +894,11 @@
 
 	/* free remaining sessions, e.g. remove wtmp entries */
 	session_destroy_all(NULL);
+	total_time = get_current_time() - start_time;
+	logit("SSH: Server;LType: Throughput;Remote: %s-%d;IN: %lu;OUT: %lu;Duration: %.1f;tPut_in: %.1f;tPut_out: %.1f",
+	      get_remote_ipaddr(), get_remote_port(),
+	      stdin_bytes, fdout_bytes, total_time, stdin_bytes / total_time, 
+	      fdout_bytes / total_time);
 }
 
 static void
@@ -957,9 +980,14 @@
 	xfree(originator);
 	if (sock < 0)
 		return NULL;
+	if (options.hpn_disabled)
 	c = channel_new("direct-tcpip", SSH_CHANNEL_CONNECTING,
 	    sock, sock, -1, CHAN_TCP_WINDOW_DEFAULT,
 	    CHAN_TCP_PACKET_DEFAULT, 0, "direct-tcpip", 1);
+	else
+		c = channel_new("direct-tcpip", SSH_CHANNEL_CONNECTING,
+		    sock, sock, -1, options.hpn_buffer_size,
+		    CHAN_TCP_PACKET_DEFAULT, 0, "direct-tcpip", 1);
 	return c;
 }
 
@@ -994,8 +1022,12 @@
 	sock = tun_open(tun, mode);
 	if (sock < 0)
 		goto done;
+	if (options.hpn_disabled)
 	c = channel_new("tun", SSH_CHANNEL_OPEN, sock, sock, -1,
 	    CHAN_TCP_WINDOW_DEFAULT, CHAN_TCP_PACKET_DEFAULT, 0, "tun", 1);
+	else
+		c = channel_new("tun", SSH_CHANNEL_OPEN, sock, sock, -1,
+		    options.hpn_buffer_size, CHAN_TCP_PACKET_DEFAULT, 0, "tun", 1);
 	c->datagram = 1;
 #if defined(SSH_TUN_FILTER)
 	if (mode == SSH_TUNMODE_POINTOPOINT)
@@ -1025,6 +1057,8 @@
 	c = channel_new("session", SSH_CHANNEL_LARVAL,
 	    -1, -1, -1, /*window size*/0, CHAN_SES_PACKET_DEFAULT,
 	    0, "server-session", 1);
+	if ((options.tcp_rcv_buf_poll > 0) && (!options.hpn_disabled))
+		c->dynamic_window = 1;
 	if (session_open(the_authctxt, c->self) != 1) {
 		debug("session open failed, free channel %d", c->self);
 		channel_free(c);
@@ -1121,7 +1155,8 @@
 		} else {
 			/* Start listening on the port */
 			success = channel_setup_remote_fwd_listener(
-			    listen_address, listen_port, options.gateway_ports);
+			    listen_address, listen_port, options.gateway_ports, 
+           		    options.hpn_disabled, options.hpn_buffer_size);
 		}
 		xfree(listen_address);
 	} else if (strcmp(rtype, "cancel-tcpip-forward") == 0) {
diff -Naur openssh-4.7p1-debian/session.c openssh-4.7p1/session.c
--- openssh-4.7p1-debian/session.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/session.c	2008-04-02 14:10:52.000000000 +0200
@@ -211,6 +211,7 @@
 		packet_disconnect("listen: %.100s", strerror(errno));
 
 	/* Allocate a channel for the authentication agent socket. */
+	/* this shouldn't matter if its hpn or not - cjr */
 	nc = channel_new("auth socket",
 	    SSH_CHANNEL_AUTH_SOCKET, sock, sock, -1,
 	    CHAN_X11_WINDOW_DEFAULT, CHAN_X11_PACKET_DEFAULT,
@@ -348,7 +349,8 @@
 			}
 			debug("Received TCP/IP port forwarding request.");
 			if (channel_input_port_forward_request(s->pw->pw_uid == 0,
-			    options.gateway_ports) < 0) {
+			      options.gateway_ports, options.hpn_disabled,
+                              options.hpn_buffer_size) < 0) {
 				debug("Port forwarding failed.");
 				break;
 			}
@@ -2058,11 +2060,18 @@
 	 */
 	if (s->chanid == -1)
 		fatal("no channel for session %d", s->self);
+	if(options.hpn_disabled) 
 	channel_set_fds(s->chanid,
 	    fdout, fdin, fderr,
 	    fderr == -1 ? CHAN_EXTENDED_IGNORE : CHAN_EXTENDED_READ,
 	    1,
 	    CHAN_SES_WINDOW_DEFAULT);
+	else
+		channel_set_fds(s->chanid,
+		    fdout, fdin, fderr,
+		    fderr == -1 ? CHAN_EXTENDED_IGNORE : CHAN_EXTENDED_READ,
+		    1,
+		    options.hpn_buffer_size);
 }
 
 /*
@@ -2407,7 +2416,8 @@
 	}
 	if (x11_create_display_inet(options.x11_display_offset,
 	    options.x11_use_localhost, s->single_connection,
-	    &s->display_number, &s->x11_chanids) == -1) {
+	    &s->display_number, &s->x11_chanids, 
+	    options.hpn_disabled, options.hpn_buffer_size) == -1) {
 		debug("x11_create_display_inet failed.");
 		return 0;
 	}
diff -Naur openssh-4.7p1-debian/ssh.c openssh-4.7p1/ssh.c
--- openssh-4.7p1-debian/ssh.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/ssh.c	2008-04-02 14:10:52.000000000 +0200
@@ -507,9 +507,6 @@
 			no_shell_flag = 1;
 			no_tty_flag = 1;
 			break;
-		case 'T':
-			no_tty_flag = 1;
-			break;
 		case 'o':
 			dummy = 1;
 			line = xstrdup(optarg);
@@ -518,6 +515,13 @@
 				exit(255);
 			xfree(line);
 			break;
+		case 'T':
+			no_tty_flag = 1;
+			/* ensure that the user doesn't try to backdoor a */
+			/* null cipher switch on an interactive session */
+			/* so explicitly disable it no matter what */
+			options.none_switch=0;
+			break;
 		case 's':
 			subsystem_flag = 1;
 			break;
@@ -834,7 +838,8 @@
 		    options.local_forwards[i].listen_port,
 		    options.local_forwards[i].connect_host,
 		    options.local_forwards[i].connect_port,
-		    options.gateway_ports);
+		    options.gateway_ports, options.hpn_disabled,
+		    options.hpn_buffer_size);
 	}
 	if (i > 0 && success != i && options.exit_on_forward_failure)
 		fatal("Could not request local forwarding.");
@@ -1147,6 +1152,9 @@
 {
 	Channel *c;
 	int window, packetmax, in, out, err;
+	int sock;
+	int socksize;
+	int socksizelen = sizeof(int);
 
 	if (stdin_null_flag) {
 		in = open(_PATH_DEVNULL, O_RDONLY);
@@ -1167,9 +1175,70 @@
 	if (!isatty(err))
 		set_nonblock(err);
 
-	window = CHAN_SES_WINDOW_DEFAULT;
+	/* we need to check to see if what they want to do about buffer */
+	/* sizes here. In a hpn to nonhpn connection we want to limit */
+	/* the window size to something reasonable in case the far side */
+	/* has the large window bug. In hpn to hpn connection we want to */
+	/* use the max window size but allow the user to override it */
+	/* lastly if they disabled hpn then use the ssh std window size */
+
+	/* so why don't we just do a getsockopt() here and set the */
+	/* ssh window to that? In the case of a autotuning receive */
+	/* window the window would get stuck at the initial buffer */
+	/* size generally less than 96k. Therefore we need to set the */
+	/* maximum ssh window size to the maximum hpn buffer size */
+	/* unless the user has specifically set the tcprcvbufpoll */
+	/* to no. In which case we *can* just set the window to the */
+	/* minimum of the hpn buffer size and tcp receive buffer size */
+	
+	if(options.hpn_disabled)
+	{
+		options.hpn_buffer_size = CHAN_SES_WINDOW_DEFAULT;
+	}
+	else if (datafellows & SSH_BUG_LARGEWINDOW) 
+	{
+		debug("HPN to Non-HPN Connection");
+		if (options.hpn_buffer_size < 0)
+			options.hpn_buffer_size = 2*1024*1024;
+	} 
+	else 
+	{
+		if (options.hpn_buffer_size < 0)
+			options.hpn_buffer_size = BUFFER_MAX_LEN_HPN;
+
+		/*create a socket but don't connect it */
+		/* we use that the get the rcv socket size */
+		sock = socket(AF_INET, SOCK_STREAM, 0);
+		/* if they are using the tcp_rcv_buf option */
+		/* attempt to set the buffer size to that */
+		if (options.tcp_rcv_buf) 
+			setsockopt(sock, SOL_SOCKET, SO_RCVBUF, (void *)&options.tcp_rcv_buf, 
+				   sizeof(options.tcp_rcv_buf));
+		getsockopt(sock, SOL_SOCKET, SO_RCVBUF, 
+			   &socksize, &socksizelen);
+		close(sock);
+		debug("socksize %d", socksize);
+		if (options.tcp_rcv_buf_poll <= 0) 
+		{
+			options.hpn_buffer_size = MIN(socksize,options.hpn_buffer_size);
+			debug ("MIN of TCP RWIN and HPNBufferSize: %d", options.hpn_buffer_size);
+		} 
+		else
+		{
+			if (options.tcp_rcv_buf > 0) 
+				options.hpn_buffer_size = MIN(options.tcp_rcv_buf, options.hpn_buffer_size);
+				debug ("MIN of TCPRcvBuf and HPNBufferSize: %d", options.hpn_buffer_size);
+ 		}
+		
+	}
+
+	debug("Final hpn_buffer_size = %d", options.hpn_buffer_size);
+
+	window = options.hpn_buffer_size;
+
 	packetmax = CHAN_SES_PACKET_DEFAULT;
 	if (tty_flag) {
+		window = 4*CHAN_SES_PACKET_DEFAULT;
 		window >>= 1;
 		packetmax >>= 1;
 	}
@@ -1177,7 +1246,10 @@
 	    "session", SSH_CHANNEL_OPENING, in, out, err,
 	    window, packetmax, CHAN_EXTENDED_WRITE,
 	    "client-session", /*nonblock*/0);
-
+	if ((options.tcp_rcv_buf_poll > 0) && (!options.hpn_disabled)) {
+		c->dynamic_window = 1;
+		debug ("Enabled Dynamic Window Scaling\n");
+	}
 	debug3("ssh_session2_open: channel_new: %d", c->self);
 
 	channel_send_open(c->self);
diff -Naur openssh-4.7p1-debian/sshconnect.c openssh-4.7p1/sshconnect.c
--- openssh-4.7p1-debian/sshconnect.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/sshconnect.c	2008-04-02 14:10:52.000000000 +0200
@@ -171,6 +171,31 @@
 }
 
 /*
+ * Set TCP receive buffer if requested.
+ * Note: tuning needs to happen after the socket is
+ * created but before the connection happens
+ * so winscale is negotiated properly -cjr
+ */
+static void
+ssh_set_socket_recvbuf(int sock)
+{
+	void *buf = (void *)&options.tcp_rcv_buf;
+	int sz = sizeof(options.tcp_rcv_buf);
+	int socksize;
+	int socksizelen = sizeof(int);
+
+	debug("setsockopt Attempting to set SO_RCVBUF to %d", options.tcp_rcv_buf);
+	if (setsockopt(sock, SOL_SOCKET, SO_RCVBUF, buf, sz) >= 0) {
+	  getsockopt(sock, SOL_SOCKET, SO_RCVBUF, &socksize, &socksizelen);
+	  debug("setsockopt SO_RCVBUF: %.100s %d", strerror(errno), socksize);
+	}
+	else
+		error("Couldn't set socket receive buffer to %d: %.100s",
+		    options.tcp_rcv_buf, strerror(errno));
+}
+
+
+/*
  * Creates a (possibly privileged) socket for use as the ssh connection.
  */
 static int
@@ -193,12 +218,18 @@
 			    strerror(errno));
 		else
 			debug("Allocated local port %d.", p);
+
+		if (options.tcp_rcv_buf > 0)
+			ssh_set_socket_recvbuf(sock);		
 		return sock;
 	}
 	sock = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
 	if (sock < 0)
 		error("socket: %.100s", strerror(errno));
 
+	if (options.tcp_rcv_buf > 0)
+		ssh_set_socket_recvbuf(sock);
+	
 	/* Bind the socket to an alternative local IP address */
 	if (options.bind_address == NULL)
 		return sock;
diff -Naur openssh-4.7p1-debian/sshconnect2.c openssh-4.7p1/sshconnect2.c
--- openssh-4.7p1-debian/sshconnect2.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/sshconnect2.c	2008-04-02 14:10:52.000000000 +0200
@@ -73,6 +73,12 @@
 extern char *client_version_string;
 extern char *server_version_string;
 extern Options options;
+extern Kex *xxx_kex;
+
+/* tty_flag is set in ssh.c. use this in ssh_userauth2 */
+/* if it is set then prevent the switch to the null cipher */
+
+extern int tty_flag;
 
 /*
  * SSH2 key exchange
@@ -381,6 +387,28 @@
 	pubkey_cleanup(&authctxt);
 	dispatch_range(SSH2_MSG_USERAUTH_MIN, SSH2_MSG_USERAUTH_MAX, NULL);
 
+	/* if the user wants to use the none cipher do it */
+	/* post authentication and only if the right conditions are met */
+	/* both of the NONE commands must be true and there must be no */
+	/* tty allocated */
+	if ((options.none_switch == 1) && (options.none_enabled == 1)) 
+	{
+		if (!tty_flag) /* no null on tty sessions */
+		{
+			debug("Requesting none rekeying...");
+			myproposal[PROPOSAL_ENC_ALGS_STOC] = "none";
+			myproposal[PROPOSAL_ENC_ALGS_CTOS] = "none";
+			kex_prop2buf(&xxx_kex->my,myproposal);
+			packet_request_rekeying();
+			fprintf(stderr, "WARNING: ENABLED NONE CIPHER\n");
+		}
+		else
+		{
+			/* requested NONE cipher when in a tty */
+			debug("Cannot switch to NONE cipher with tty allocated");
+			fprintf(stderr, "NONE cipher switch disabled when a TTY is allocated\n");
+		}
+	}
 	debug("Authentication succeeded (%s).", authctxt.method->name);
 }
 
diff -Naur openssh-4.7p1-debian/sshd.c openssh-4.7p1/sshd.c
--- openssh-4.7p1-debian/sshd.c	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/sshd.c	2008-04-02 14:10:52.000000000 +0200
@@ -138,6 +138,9 @@
 #define REEXEC_CONFIG_PASS_FD		(STDERR_FILENO + 3)
 #define REEXEC_MIN_FREE_FD		(STDERR_FILENO + 4)
 
+int myflag = 0;
+
+
 extern char *__progname;
 
 /* Server configuration options. */
@@ -474,6 +477,9 @@
 	}
 	debug("Client protocol version %d.%d; client software version %.100s",
 	    remote_major, remote_minor, remote_version);
+	logit("SSH: Server;Ltype: Version;Remote: %s-%d;Protocol: %d.%d;Client: %.100s",
+	      get_remote_ipaddr(), get_remote_port(),
+	    remote_major, remote_minor, remote_version);
 
 	compat_datafellows(remote_version);
 
@@ -946,6 +952,8 @@
 	int ret, listen_sock, on = 1;
 	struct addrinfo *ai;
 	char ntop[NI_MAXHOST], strport[NI_MAXSERV];
+	int socksize;
+	int socksizelen = sizeof(int);
 
 	for (ai = options.listen_addrs; ai; ai = ai->ai_next) {
 		if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6)
@@ -983,6 +991,11 @@
 
 		debug("Bind to port %s on %s.", strport, ntop);
 
+		getsockopt(listen_sock, SOL_SOCKET, SO_RCVBUF, 
+				   &socksize, &socksizelen);
+		debug("Server TCP RWIN socket size: %d", socksize);
+		debug("HPN Buffer Size: %d", options.hpn_buffer_size);
+
 		/* Bind the socket to the desired port. */
 		if (bind(listen_sock, ai->ai_addr, ai->ai_addrlen) < 0) {
 			error("Bind to port %s on %s failed: %.200s.",
@@ -2160,9 +2173,15 @@
 {
 	Kex *kex;
 
+	myflag++;
+	debug ("MYFLAG IS %d", myflag);
 	if (options.ciphers != NULL) {
 		myproposal[PROPOSAL_ENC_ALGS_CTOS] =
 		myproposal[PROPOSAL_ENC_ALGS_STOC] = options.ciphers;
+	} else if (options.none_enabled == 1) {
+		debug ("WARNING: None cipher enabled");
+		myproposal[PROPOSAL_ENC_ALGS_CTOS] =
+		myproposal[PROPOSAL_ENC_ALGS_STOC] = KEX_ENCRYPT_INCLUDE_NONE;
 	}
 	myproposal[PROPOSAL_ENC_ALGS_CTOS] =
 	    compat_cipher_proposal(myproposal[PROPOSAL_ENC_ALGS_CTOS]);
diff -Naur openssh-4.7p1-debian/sshd_config openssh-4.7p1/sshd_config
--- openssh-4.7p1-debian/sshd_config	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/sshd_config	2008-04-02 14:10:52.000000000 +0200
@@ -111,6 +111,20 @@
 # override default of no subsystems
 Subsystem	sftp	/usr/libexec/sftp-server
 
+# the following are HPN related configuration options
+# tcp receive buffer polling. disable in non autotuning kernels
+#TcpRcvBufPoll yes
+ 
+# allow the use of the none cipher
+#NoneEnabled no
+
+# disable hpn performance boosts. 
+#HPNDisabled no
+
+# buffer size for hpn to non-hpn connections
+#HPNBufferSize 2048
+
+
 # Example of overriding settings on a per-user basis
 #Match User anoncvs
 #	X11Forwarding no
diff -Naur openssh-4.7p1-debian/version.h openssh-4.7p1/version.h
--- openssh-4.7p1-debian/version.h	2008-04-02 11:56:47.000000000 +0200
+++ openssh-4.7p1/version.h	2008-04-02 14:10:52.000000000 +0200
@@ -3,8 +3,9 @@
 #define SSH_VERSION	"OpenSSH_4.7"
 
 #define SSH_PORTABLE	"p1"
+#define SSH_HPN         "-hpn13v1"                                                                                                                                                                                                                                       
 #ifdef SSH_EXTRAVERSION
-#define SSH_RELEASE	SSH_VERSION SSH_PORTABLE " " SSH_EXTRAVERSION
+#define SSH_RELEASE	SSH_VERSION SSH_PORTABLE SSH_HPN " " SSH_EXTRAVERSION
 #else
-#define SSH_RELEASE	SSH_VERSION SSH_PORTABLE
+#define SSH_RELEASE	SSH_VERSION SSH_PORTABLE SSH_HPN
 #endif

Some results:

# ssh -c arcfour -p8322 localhost "dd if=/dev/zero" |pv > /dev/null
[50.5MB/s]
# ssh -c arcfour128 -p8322 localhost "dd if=/dev/zero" |pv > /dev/null
[50.5MB/s]
# ssh -c blowfish-cbc -p8322 localhost "dd if=/dev/zero" |pv > /dev/null
[31.9MB/s]
# ssh -c aes128-cbc -p8322 localhost "dd if=/dev/zero" |pv > /dev/null
[30.7MB/s]
# ssh -c aes128-ctr -p8322 localhost "dd if=/dev/zero" |pv > /dev/null
[25.9MB/s]
# ssh -c aes256-cbc -p8322 localhost "dd if=/dev/zero" |pv > /dev/null
[  25MB/s]
# ssh -c aes256-ctr -p8322 localhost "dd if=/dev/zero" |pv > /dev/null
[16.2MB/s]
# ssh -c cast128-cbc -p8322 localhost "dd if=/dev/zero" |pv > /dev/null
[13.1MB/s]
# ssh -c arcfour256 -p8322 localhost "dd if=/dev/zero" |pv > /dev/null
[12.9MB/s]

Results give the same order as on the official page, arcfour ranked #1, blowfish #2 & aes128 #3

# ssh -t -c none -oNoneSwitch=yes -oNoneEnabled=yes -p8322 localhost "dd if=/dev/zero" |pv > /dev/null
Pre-authentication none cipher requests are not allowed.

(even with NoneEnabled=yes on the server-side :-( )

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