[gentoo-commits] repo/gentoo:master commit in: net-misc/openssh/files/, net-misc/openssh/

[Sam James]

commit:     268d1040b0682edf6f042269a33a32315590547b
Author:     Sam James <sam <AT> gentoo <DOT> org>
AuthorDate: Wed Mar 15 03:10:39 2023 +0000
Commit:     Sam James <sam <AT> gentoo <DOT> org>
CommitDate: Wed Mar 15 03:10:39 2023 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=268d1040

net-misc/openssh: add OpenSSL version compatibility fix

Without this, openssh wrongly thinks a rebuild is needed between openssl 3.0.x
and 3.1.x.

Bug: https://bugzilla.mindrot.org/show_bug.cgi?id=3548
Signed-off-by: Sam James <sam <AT> gentoo.org>

 ...enssh-9.1_p2-openssl-version-compat-check.patch |  42 ++
 net-misc/openssh/openssh-9.2_p1-r3.ebuild          | 518 +++++++++++++++++++++
 2 files changed, 560 insertions(+)

diff --git a/net-misc/openssh/files/openssh-9.1_p2-openssl-version-compat-check.patch b/net-misc/openssh/files/openssh-9.1_p2-openssl-version-compat-check.patch
new file mode 100644
index 000000000000..530d96e11ce2
--- /dev/null
+++ b/net-misc/openssh/files/openssh-9.1_p2-openssl-version-compat-check.patch
@@ -0,0 +1,42 @@
+https://bugzilla.mindrot.org/show_bug.cgi?id=3548
+--- a/openbsd-compat/openssl-compat.c
++++ b/openbsd-compat/openssl-compat.c
+@@ -33,10 +33,10 @@
+ 
+ /*
+  * OpenSSL version numbers: MNNFFPPS: major minor fix patch status
+- * We match major, minor, fix and status (not patch) for <1.0.0.
+- * After that, we acceptable compatible fix versions (so we
+- * allow 1.0.1 to work with 1.0.0). Going backwards is only allowed
+- * within a patch series.
++ * Versions >=3 require only major versions to match.
++ * For versions <3, we accept compatible fix versions (so we allow 1.0.1
++ * to work with 1.0.0). Going backwards is only allowed within a patch series.
++ * See https://www.openssl.org/policies/releasestrat.html
+  */
+ 
+ int
+@@ -48,15 +48,17 @@ ssh_compatible_openssl(long headerver, long libver)
+ 	if (headerver == libver)
+ 		return 1;
+ 
+-	/* for versions < 1.0.0, major,minor,fix,status must match */
+-	if (headerver < 0x1000000f) {
+-		mask = 0xfffff00fL; /* major,minor,fix,status */
++	/*
++	 * For versions >= 3.0, only the major and status must match.
++	 */
++	if (headerver >= 0x3000000f) {
++		mask = 0xf000000fL; /* major,status */
+ 		return (headerver & mask) == (libver & mask);
+ 	}
+ 
+ 	/*
+-	 * For versions >= 1.0.0, major,minor,status must match and library
+-	 * fix version must be equal to or newer than the header.
++	 * For versions >= 1.0.0, but <3, major,minor,status must match and
++	 * library fix version must be equal to or newer than the header.
+ 	 */
+ 	mask = 0xfff0000fL; /* major,minor,status */
+ 	hfix = (headerver & 0x000ff000) >> 12;
+

diff --git a/net-misc/openssh/openssh-9.2_p1-r3.ebuild b/net-misc/openssh/openssh-9.2_p1-r3.ebuild
new file mode 100644
index 000000000000..0c12a424605e
--- /dev/null
+++ b/net-misc/openssh/openssh-9.2_p1-r3.ebuild
@@ -0,0 +1,518 @@
+# Copyright 1999-2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+inherit user-info flag-o-matic autotools pam systemd toolchain-funcs verify-sig
+
+# Make it more portable between straight releases
+# and _p? releases.
+PARCH=${P/_}
+
+# PV to USE for HPN patches
+#HPN_PV="${PV^^}"
+HPN_PV="8.5_P1"
+
+HPN_VER="15.2"
+HPN_PATCHES=(
+	${PN}-${HPN_PV/./_}-hpn-DynWinNoneSwitch-${HPN_VER}.diff
+	${PN}-${HPN_PV/./_}-hpn-AES-CTR-${HPN_VER}.diff
+	${PN}-${HPN_PV/./_}-hpn-PeakTput-${HPN_VER}.diff
+)
+HPN_GLUE_PATCH="${PN}-9.2_p1-hpn-${HPN_VER}-glue.patch"
+HPN_PATCH_DIR="HPN-SSH%%20${HPN_VER/./v}%%20${HPN_PV/_P/p}"
+
+SCTP_VER="1.2"
+SCTP_PATCH="${PARCH}-sctp-${SCTP_VER}.patch.xz"
+
+X509_VER="14.1"
+X509_PATCH="${PARCH}+x509-${X509_VER}.diff.gz"
+X509_GLUE_PATCH="${P}-X509-glue-${X509_VER}.patch"
+X509_HPN_GLUE_PATCH="${PN}-9.2_p1-hpn-${HPN_VER}-X509-${X509_VER}-glue.patch"
+
+DESCRIPTION="Port of OpenBSD's free SSH release"
+HOMEPAGE="https://www.openssh.com/"
+SRC_URI="mirror://openbsd/OpenSSH/portable/${PARCH}.tar.gz
+	${SCTP_PATCH:+sctp? ( https://dev.gentoo.org/~chutzpah/dist/openssh/${SCTP_PATCH} )}
+	${HPN_VER:+hpn? (
+		$(printf "mirror://sourceforge/project/hpnssh/Patches/${HPN_PATCH_DIR}/%s\n" "${HPN_PATCHES[@]}")
+		https://dev.gentoo.org/~chutzpah/dist/openssh/${HPN_GLUE_PATCH}.xz
+	)}
+	${X509_PATCH:+X509? (
+		https://roumenpetrov.info/openssh/x509-${X509_VER}/${X509_PATCH}
+		https://dev.gentoo.org/~chutzpah/dist/openssh/${X509_GLUE_PATCH}.xz
+		${HPN_VER:+hpn? ( https://dev.gentoo.org/~chutzpah/dist/openssh/${X509_HPN_GLUE_PATCH}.xz )}
+	)}
+	verify-sig? ( mirror://openbsd/OpenSSH/portable/${PARCH}.tar.gz.asc )
+"
+VERIFY_SIG_OPENPGP_KEY_PATH=${BROOT}/usr/share/openpgp-keys/openssh.org.asc
+S="${WORKDIR}/${PARCH}"
+
+LICENSE="BSD GPL-2"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+# Probably want to drop ssl defaulting to on in a future version.
+IUSE="abi_mips_n32 audit debug hpn kerberos ldns libedit livecd pam +pie sctp security-key selinux +ssl static test X X509 xmss"
+
+RESTRICT="!test? ( test )"
+
+REQUIRED_USE="
+	hpn? ( ssl )
+	ldns? ( ssl )
+	pie? ( !static )
+	static? ( !kerberos !pam )
+	X509? ( !sctp ssl !xmss )
+	xmss? ( ssl  )
+	test? ( ssl )
+"
+
+# tests currently fail with XMSS
+REQUIRED_USE+="test? ( !xmss )"
+
+# Blocker on older gcc-config for bug #872416
+LIB_DEPEND="
+	!<sys-devel/gcc-config-2.6
+	audit? ( sys-process/audit[static-libs(+)] )
+	ldns? (
+		net-libs/ldns[static-libs(+)]
+		net-libs/ldns[ecdsa(+),ssl(+)]
+	)
+	libedit? ( dev-libs/libedit:=[static-libs(+)] )
+	sctp? ( net-misc/lksctp-tools[static-libs(+)] )
+	security-key? ( >=dev-libs/libfido2-1.5.0:=[static-libs(+)] )
+	selinux? ( >=sys-libs/libselinux-1.28[static-libs(+)] )
+	ssl? ( >=dev-libs/openssl-1.1.1l-r1:0=[static-libs(+)] )
+	virtual/libcrypt:=[static-libs(+)]
+	>=sys-libs/zlib-1.2.3:=[static-libs(+)]
+"
+RDEPEND="
+	acct-group/sshd
+	acct-user/sshd
+	!static? ( ${LIB_DEPEND//\[static-libs(+)]} )
+	pam? ( sys-libs/pam )
+	kerberos? ( virtual/krb5 )
+"
+DEPEND="${RDEPEND}
+	virtual/os-headers
+	kernel_linux? ( !prefix-guest? ( >=sys-kernel/linux-headers-5.1 ) )
+	static? ( ${LIB_DEPEND} )
+"
+RDEPEND="${RDEPEND}
+	pam? ( >=sys-auth/pambase-20081028 )
+	!prefix? ( sys-apps/shadow )
+	X? ( x11-apps/xauth )
+"
+# Weird dep construct for newer gcc-config for bug #872416
+BDEPEND="
+	sys-devel/autoconf
+	virtual/pkgconfig
+	|| (
+		>=sys-devel/gcc-config-2.6
+		>=sys-devel/clang-toolchain-symlinks-14-r1:14
+		>=sys-devel/clang-toolchain-symlinks-15-r1:15
+		>=sys-devel/clang-toolchain-symlinks-16-r1:*
+	)
+	verify-sig? ( sec-keys/openpgp-keys-openssh )
+"
+
+PATCHES=(
+	"${FILESDIR}/${PN}-7.9_p1-include-stdlib.patch"
+	"${FILESDIR}/${PN}-8.7_p1-GSSAPI-dns.patch" #165444 integrated into gsskex
+	"${FILESDIR}/${PN}-6.7_p1-openssl-ignore-status.patch"
+	"${FILESDIR}/${PN}-7.5_p1-disable-conch-interop-tests.patch"
+	"${FILESDIR}/${PN}-8.0_p1-fix-putty-tests.patch"
+	"${FILESDIR}/${PN}-8.0_p1-deny-shmget-shmat-shmdt-in-preauth-privsep-child.patch"
+	"${FILESDIR}/${PN}-8.9_p1-allow-ppoll_time64.patch" #834019
+	"${FILESDIR}/${PN}-8.9_p1-gss-use-HOST_NAME_MAX.patch" #834044
+	"${FILESDIR}/${PN}-9.1_p2-openssl-version-compat-check.patch"
+)
+
+pkg_pretend() {
+	# this sucks, but i'd rather have people unable to `emerge -u openssh`
+	# than not be able to log in to their server any more
+	local missing=()
+	check_feature() { use "${1}" && [[ -z ${!2} ]] && missing+=( "${1}" ); }
+	check_feature hpn HPN_VER
+	check_feature sctp SCTP_PATCH
+	check_feature X509 X509_PATCH
+	if [[ ${#missing[@]} -ne 0 ]] ; then
+		eerror "Sorry, but this version does not yet support features"
+		eerror "that you requested: ${missing[*]}"
+		eerror "Please mask ${PF} for now and check back later:"
+		eerror " # echo '=${CATEGORY}/${PF}' >> /etc/portage/package.mask"
+		die "Missing requested third party patch."
+	fi
+
+	# Make sure people who are using tcp wrappers are notified of its removal. #531156
+	if grep -qs '^ *sshd *:' "${EROOT}"/etc/hosts.{allow,deny} ; then
+		ewarn "Sorry, but openssh no longer supports tcp-wrappers, and it seems like"
+		ewarn "you're trying to use it.  Update your ${EROOT}/etc/hosts.{allow,deny} please."
+	fi
+}
+
+src_unpack() {
+	default
+
+	# We don't have signatures for HPN, X509, so we have to write this ourselves
+	use verify-sig && verify-sig_verify_detached "${DISTDIR}"/${PARCH}.tar.gz{,.asc}
+}
+
+src_prepare() {
+	sed -i \
+		-e "/_PATH_XAUTH/s:/usr/X11R6/bin/xauth:${EPREFIX}/usr/bin/xauth:" \
+		pathnames.h || die
+
+	# don't break .ssh/authorized_keys2 for fun
+	sed -i '/^AuthorizedKeysFile/s:^:#:' sshd_config || die
+
+	eapply -- "${PATCHES[@]}"
+
+	[[ -d ${WORKDIR}/patches ]] && eapply "${WORKDIR}"/patches
+
+	local PATCHSET_VERSION_MACROS=()
+
+	if use X509 ; then
+		pushd "${WORKDIR}" &>/dev/null || die
+		eapply "${WORKDIR}/${X509_GLUE_PATCH}"
+		popd &>/dev/null || die
+
+		eapply "${WORKDIR}"/${X509_PATCH%.*}
+		eapply "${FILESDIR}/${PN}-9.0_p1-X509-uninitialized-delay.patch"
+
+		# We need to patch package version or any X.509 sshd will reject our ssh client
+		# with "userauth_pubkey: could not parse key: string is too large [preauth]"
+		# error
+		einfo "Patching package version for X.509 patch set ..."
+		sed -i \
+			-e "s/^AC_INIT(\[OpenSSH\], \[Portable\]/AC_INIT([OpenSSH], [${X509_VER}]/" \
+			"${S}"/configure.ac || die "Failed to patch package version for X.509 patch"
+
+		einfo "Patching version.h to expose X.509 patch set ..."
+		sed -i \
+			-e "/^#define SSH_PORTABLE.*/a #define SSH_X509               \"-PKIXSSH-${X509_VER}\"" \
+			"${S}"/version.h || die "Failed to sed-in X.509 patch version"
+		PATCHSET_VERSION_MACROS+=( 'SSH_X509' )
+	fi
+
+	if use sctp ; then
+		eapply "${WORKDIR}"/${SCTP_PATCH%.*}
+
+		einfo "Patching version.h to expose SCTP patch set ..."
+		sed -i \
+			-e "/^#define SSH_PORTABLE/a #define SSH_SCTP        \"-sctp-${SCTP_VER}\"" \
+			"${S}"/version.h || die "Failed to sed-in SCTP patch version"
+		PATCHSET_VERSION_MACROS+=( 'SSH_SCTP' )
+
+		einfo "Disabling known failing test (cfgparse) caused by SCTP patch ..."
+		sed -i \
+			-e "/\t\tcfgparse \\\/d" \
+			"${S}"/regress/Makefile || die "Failed to disable known failing test (cfgparse) caused by SCTP patch"
+	fi
+
+	if use hpn ; then
+		local hpn_patchdir="${T}/${P}-hpn${HPN_VER}"
+		mkdir "${hpn_patchdir}" || die
+		cp $(printf -- "${DISTDIR}/%s\n" "${HPN_PATCHES[@]}") "${hpn_patchdir}" || die
+		pushd "${hpn_patchdir}" &>/dev/null || die
+		eapply "${WORKDIR}/${HPN_GLUE_PATCH}"
+		use X509 && eapply "${WORKDIR}/${X509_HPN_GLUE_PATCH}"
+		use sctp && eapply "${FILESDIR}"/${PN}-8.5_p1-hpn-${HPN_VER}-sctp-glue.patch
+		popd &>/dev/null || die
+
+		eapply "${hpn_patchdir}"
+
+		use X509 || eapply "${FILESDIR}/openssh-8.6_p1-hpn-version.patch"
+
+		einfo "Patching Makefile.in for HPN patch set ..."
+		sed -i \
+			-e "/^LIBS=/ s/\$/ -lpthread/" \
+			"${S}"/Makefile.in || die "Failed to patch Makefile.in"
+
+		einfo "Patching version.h to expose HPN patch set ..."
+		sed -i \
+			-e "/^#define SSH_PORTABLE/a #define SSH_HPN         \"-hpn${HPN_VER//./v}\"" \
+			"${S}"/version.h || die "Failed to sed-in HPN patch version"
+		PATCHSET_VERSION_MACROS+=( 'SSH_HPN' )
+
+		if [[ -n "${HPN_DISABLE_MTAES}" ]] ; then
+			einfo "Disabling known non-working MT AES cipher per default ..."
+
+			cat > "${T}"/disable_mtaes.conf <<- EOF
+
+			# HPN's Multi-Threaded AES CTR cipher is currently known to be broken
+			# and therefore disabled per default.
+			DisableMTAES yes
+			EOF
+			sed -i \
+				-e "/^#HPNDisabled.*/r ${T}/disable_mtaes.conf" \
+				"${S}"/sshd_config || die "Failed to disabled MT AES ciphers in sshd_config"
+
+			sed -i \
+				-e "/AcceptEnv.*_XXX_TEST$/a \\\tDisableMTAES\t\tyes" \
+				"${S}"/regress/test-exec.sh || die "Failed to disable MT AES ciphers in test config"
+		fi
+	fi
+
+	if use X509 || use sctp || use hpn ; then
+		einfo "Patching sshconnect.c to use SSH_RELEASE in send_client_banner() ..."
+		sed -i \
+			-e "s/PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_VERSION/PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_RELEASE/" \
+			"${S}"/sshconnect.c || die "Failed to patch send_client_banner() to use SSH_RELEASE (sshconnect.c)"
+
+		einfo "Patching sshd.c to use SSH_RELEASE in sshd_exchange_identification() ..."
+		sed -i \
+			-e "s/PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_VERSION/PROTOCOL_MAJOR_2, PROTOCOL_MINOR_2, SSH_RELEASE/" \
+			"${S}"/sshd.c || die "Failed to patch sshd_exchange_identification() to use SSH_RELEASE (sshd.c)"
+
+		einfo "Patching version.h to add our patch sets to SSH_RELEASE ..."
+		sed -i \
+			-e "s/^#define SSH_RELEASE.*/#define SSH_RELEASE     SSH_VERSION SSH_PORTABLE ${PATCHSET_VERSION_MACROS[*]}/" \
+			"${S}"/version.h || die "Failed to patch SSH_RELEASE (version.h)"
+	fi
+
+	eapply_user #473004
+
+	# These tests are currently incompatible with PORTAGE_TMPDIR/sandbox
+	sed -e '/\t\tpercent \\/ d' \
+		-i regress/Makefile || die
+
+	tc-export PKG_CONFIG
+	local sed_args=(
+		-e "s:-lcrypto:$(${PKG_CONFIG} --libs openssl):"
+		# Disable fortify flags ... our gcc does this for us
+		-e 's:-D_FORTIFY_SOURCE=2::'
+	)
+
+	# The -ftrapv flag ICEs on hppa #505182
+	use hppa && sed_args+=(
+		-e '/CFLAGS/s:-ftrapv:-fdisable-this-test:'
+		-e '/OSSH_CHECK_CFLAG_LINK.*-ftrapv/d'
+	)
+	# _XOPEN_SOURCE causes header conflicts on Solaris
+	[[ ${CHOST} == *-solaris* ]] && sed_args+=(
+		-e 's/-D_XOPEN_SOURCE//'
+	)
+	sed -i "${sed_args[@]}" configure{.ac,} || die
+
+	eautoreconf
+}
+
+src_configure() {
+	addwrite /dev/ptmx
+
+	use debug && append-cppflags -DSANDBOX_SECCOMP_FILTER_DEBUG
+	use static && append-ldflags -static
+	use xmss && append-cflags -DWITH_XMSS
+
+	if [[ ${CHOST} == *-solaris* ]] ; then
+		# Solaris' glob.h doesn't have things like GLOB_TILDE, configure
+		# doesn't check for this, so force the replacement to be put in
+		# place
+		append-cppflags -DBROKEN_GLOB
+	fi
+
+	# use replacement, RPF_ECHO_ON doesn't exist here
+	[[ ${CHOST} == *-darwin* ]] && export ac_cv_func_readpassphrase=no
+
+	local myconf=(
+		--with-ldflags="${LDFLAGS}"
+		--disable-strip
+		--with-pid-dir="${EPREFIX}"$(usex kernel_linux '' '/var')/run
+		--sysconfdir="${EPREFIX}"/etc/ssh
+		--libexecdir="${EPREFIX}"/usr/$(get_libdir)/misc
+		--datadir="${EPREFIX}"/usr/share/openssh
+		--with-privsep-path="${EPREFIX}"/var/empty
+		--with-privsep-user=sshd
+		$(use_with audit audit linux)
+		$(use_with kerberos kerberos5 "${EPREFIX}"/usr)
+		# We apply the sctp patch conditionally, so can't pass --without-sctp
+		# unconditionally else we get unknown flag warnings.
+		$(use sctp && use_with sctp)
+		$(use_with ldns)
+		$(use_with libedit)
+		$(use_with pam)
+		$(use_with pie)
+		$(use_with selinux)
+		$(usex X509 '' "$(use_with security-key security-key-builtin)")
+		$(use_with ssl openssl)
+		$(use_with ssl ssl-engine)
+		$(use_with !elibc_Cygwin hardening) #659210
+	)
+
+	if use elibc_musl; then
+		# musl defines bogus values for UTMP_FILE and WTMP_FILE
+		# https://bugs.gentoo.org/753230
+		myconf+=( --disable-utmp --disable-wtmp )
+	fi
+
+	# Workaround for Clang 15 miscompilation with -fzero-call-used-regs=all
+	# bug #869839 (https://github.com/llvm/llvm-project/issues/57692)
+	tc-is-clang && myconf+=( --without-hardening )
+
+	econf "${myconf[@]}"
+}
+
+src_test() {
+	local tests=( compat-tests )
+	local shell=$(egetshell "${UID}")
+	if [[ ${shell} == */nologin ]] || [[ ${shell} == */false ]] ; then
+		ewarn "Running the full OpenSSH testsuite requires a usable shell for the 'portage'"
+		ewarn "user, so we will run a subset only."
+		tests+=( interop-tests )
+	else
+		tests+=( tests )
+	fi
+
+	local -x SUDO= SSH_SK_PROVIDER= TEST_SSH_UNSAFE_PERMISSIONS=1
+	mkdir -p "${HOME}"/.ssh || die
+	emake -j1 "${tests[@]}" </dev/null
+}
+
+# Gentoo tweaks to default config files.
+tweak_ssh_configs() {
+	local locale_vars=(
+		# These are language variables that POSIX defines.
+		# http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html#tag_08_02
+		LANG LC_ALL LC_COLLATE LC_CTYPE LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME
+
+		# These are the GNU extensions.
+		# https://www.gnu.org/software/autoconf/manual/html_node/Special-Shell-Variables.html
+		LANGUAGE LC_ADDRESS LC_IDENTIFICATION LC_MEASUREMENT LC_NAME LC_PAPER LC_TELEPHONE
+	)
+
+	# First the server config.
+	cat <<-EOF >> "${ED}"/etc/ssh/sshd_config
+
+	# Allow client to pass locale environment variables. #367017
+	AcceptEnv ${locale_vars[*]}
+
+	# Allow client to pass COLORTERM to match TERM. #658540
+	AcceptEnv COLORTERM
+	EOF
+
+	# Then the client config.
+	cat <<-EOF >> "${ED}"/etc/ssh/ssh_config
+
+	# Send locale environment variables. #367017
+	SendEnv ${locale_vars[*]}
+
+	# Send COLORTERM to match TERM. #658540
+	SendEnv COLORTERM
+	EOF
+
+	if use pam ; then
+		sed -i \
+			-e "/^#UsePAM /s:.*:UsePAM yes:" \
+			-e "/^#PasswordAuthentication /s:.*:PasswordAuthentication no:" \
+			-e "/^#PrintMotd /s:.*:PrintMotd no:" \
+			-e "/^#PrintLastLog /s:.*:PrintLastLog no:" \
+			"${ED}"/etc/ssh/sshd_config || die
+	fi
+
+	if use livecd ; then
+		sed -i \
+			-e '/^#PermitRootLogin/c# Allow root login with password on livecds.\nPermitRootLogin Yes' \
+			"${ED}"/etc/ssh/sshd_config || die
+	fi
+}
+
+src_install() {
+	emake install-nokeys DESTDIR="${D}"
+	fperms 600 /etc/ssh/sshd_config
+	dobin contrib/ssh-copy-id
+	newinitd "${FILESDIR}"/sshd-r1.initd sshd
+	newconfd "${FILESDIR}"/sshd-r1.confd sshd
+
+	if use pam; then
+		newpamd "${FILESDIR}"/sshd.pam_include.2 sshd
+	fi
+
+	tweak_ssh_configs
+
+	doman contrib/ssh-copy-id.1
+	dodoc CREDITS OVERVIEW README* TODO sshd_config
+	use hpn && dodoc HPN-README
+	use X509 || dodoc ChangeLog
+
+	diropts -m 0700
+	dodir /etc/skel/.ssh
+	rmdir "${ED}"/var/empty || die
+
+	systemd_dounit "${FILESDIR}"/sshd.socket
+	systemd_newunit "${FILESDIR}"/sshd.service.1 sshd.service
+	systemd_newunit "${FILESDIR}"/sshd_at.service.1 'sshd@.service'
+}
+
+pkg_preinst() {
+	if ! use ssl && has_version "${CATEGORY}/${PN}[ssl]"; then
+		show_ssl_warning=1
+	fi
+}
+
+pkg_postinst() {
+	local old_ver
+	for old_ver in ${REPLACING_VERSIONS}; do
+		if ver_test "${old_ver}" -lt "5.8_p1"; then
+			elog "Starting with openssh-5.8p1, the server will default to a newer key"
+			elog "algorithm (ECDSA).  You are encouraged to manually update your stored"
+			elog "keys list as servers update theirs.  See ssh-keyscan(1) for more info."
+		fi
+		if ver_test "${old_ver}" -lt "7.0_p1"; then
+			elog "Starting with openssh-6.7, support for USE=tcpd has been dropped by upstream."
+			elog "Make sure to update any configs that you might have.  Note that xinetd might"
+			elog "be an alternative for you as it supports USE=tcpd."
+		fi
+		if ver_test "${old_ver}" -lt "7.1_p1"; then #557388 #555518
+			elog "Starting with openssh-7.0, support for ssh-dss keys were disabled due to their"
+			elog "weak sizes.  If you rely on these key types, you can re-enable the key types by"
+			elog "adding to your sshd_config or ~/.ssh/config files:"
+			elog "	PubkeyAcceptedKeyTypes=+ssh-dss"
+			elog "You should however generate new keys using rsa or ed25519."
+
+			elog "Starting with openssh-7.0, the default for PermitRootLogin changed from 'yes'"
+			elog "to 'prohibit-password'.  That means password auth for root users no longer works"
+			elog "out of the box.  If you need this, please update your sshd_config explicitly."
+		fi
+		if ver_test "${old_ver}" -lt "7.6_p1"; then
+			elog "Starting with openssh-7.6p1, openssh upstream has removed ssh1 support entirely."
+			elog "Furthermore, rsa keys with less than 1024 bits will be refused."
+		fi
+		if ver_test "${old_ver}" -lt "7.7_p1"; then
+			elog "Starting with openssh-7.7p1, we no longer patch openssh to provide LDAP functionality."
+			elog "Install sys-auth/ssh-ldap-pubkey and use OpenSSH's \"AuthorizedKeysCommand\" option"
+			elog "if you need to authenticate against LDAP."
+			elog "See https://wiki.gentoo.org/wiki/SSH/LDAP_migration for more details."
+		fi
+		if ver_test "${old_ver}" -lt "8.2_p1"; then
+			ewarn "After upgrading to openssh-8.2p1 please restart sshd, otherwise you"
+			ewarn "will not be able to establish new sessions. Restarting sshd over a ssh"
+			ewarn "connection is generally safe."
+		fi
+		if ver_test "${old_ver}" -lt "9.2_p1-r1" && systemd_is_booted; then
+			ewarn "From openssh-9.2_p1-r1 the supplied systemd unit file defaults to"
+			ewarn "'Restart=on-failure', which causes the service to automatically restart if it"
+			ewarn "terminates with an unclean exit code or signal. This feature is useful for most users,"
+			ewarn "but it can increase the vulnerability of the system in the event of a future exploit."
+			ewarn "If you have a web-facing setup or are concerned about security, it is recommended to"
+			ewarn "set 'Restart=no' in your sshd unit file."
+		fi
+	done
+
+	if [[ -n ${show_ssl_warning} ]]; then
+		elog "Be aware that by disabling openssl support in openssh, the server and clients"
+		elog "no longer support dss/rsa/ecdsa keys.  You will need to generate ed25519 keys"
+		elog "and update all clients/servers that utilize them."
+	fi
+
+	if use hpn && [[ -n "${HPN_DISABLE_MTAES}" ]] ; then
+		elog ""
+		elog "HPN's multi-threaded AES CTR cipher is currently known to be broken"
+		elog "and therefore disabled at runtime per default."
+		elog "Make sure your sshd_config is up to date and contains"
+		elog ""
+		elog "  DisableMTAES yes"
+		elog ""
+		elog "Otherwise you maybe unable to connect to this sshd using any AES CTR cipher."
+		elog ""
+	fi
+}