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# 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=${P/_}
DESCRIPTION="Port of OpenBSD's free SSH release"
HOMEPAGE="https://www.openssh.com/"
SRC_URI="
mirror://openbsd/OpenSSH/portable/${PARCH}.tar.gz
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 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
# Probably want to drop ssl defaulting to on in a future version.
IUSE="abi_mips_n32 audit debug kerberos ldns libedit livecd pam +pie security-key selinux +ssl static test X xmss"
RESTRICT="!test? ( test )"
REQUIRED_USE="
ldns? ( ssl )
pie? ( !static )
static? ( !kerberos !pam )
xmss? ( ssl )
test? ( ssl )
"
# tests currently fail with XMSS
REQUIRED_USE+="test? ( !xmss )"
LIB_DEPEND="
audit? ( sys-process/audit[static-libs(+)] )
ldns? (
net-libs/ldns[static-libs(+)]
net-libs/ldns[ecdsa(+),ssl(+)]
)
libedit? ( dev-libs/libedit:=[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}
!net-misc/openssh-contrib
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}-9.3_p1-GSSAPI-dns.patch" #165444 integrated into gsskex
"${FILESDIR}/${PN}-9.3_p1-openssl-ignore-status.patch"
"${FILESDIR}/${PN}-9.3_p1-disable-conch-interop-tests.patch"
"${FILESDIR}/${PN}-9.3_p1-fix-putty-tests.patch"
"${FILESDIR}/${PN}-9.3_p1-deny-shmget-shmat-shmdt-in-preauth-privsep-child.patch"
"${FILESDIR}/${PN}-9.3_p2-zlib-1.3.patch" #912766
)
pkg_pretend() {
local i enabled_eol_flags disabled_eol_flags
for i in hpn sctp X509; do
if has_version "net-misc/openssh[${i}]"; then
enabled_eol_flags+="${i},"
disabled_eol_flags+="-${i},"
fi
done
if [[ -n ${enabled_eol_flags} && ${OPENSSH_EOL_USE_FLAGS_I_KNOW_WHAT_I_AM_DOING} != yes ]]; then
# Skip for binary packages entirely because of environment saving, bug #907892
[[ ${MERGE_TYPE} == binary ]] && return
ewarn "net-misc/openssh does not support USE='${enabled_eol_flags%,}' anymore."
ewarn "The Base system team *STRONGLY* recommends you not rely on this functionality,"
ewarn "since these USE flags required third-party patches that often trigger bugs"
ewarn "and are of questionable provenance."
ewarn
ewarn "If you must continue relying on this functionality, switch to"
ewarn "net-misc/openssh-contrib. You will have to remove net-misc/openssh from your"
ewarn "world file first: 'emerge --deselect net-misc/openssh'"
ewarn
ewarn "In order to prevent loss of SSH remote login access, we will abort the build."
ewarn "Whether you proceed with disabling the USE flags or switch to the -contrib"
ewarn "variant, when re-emerging you will have to set"
ewarn
ewarn " OPENSSH_EOL_USE_FLAGS_I_KNOW_WHAT_I_AM_DOING=yes"
die "Building net-misc/openssh[${disabled_eol_flags%,}] without OPENSSH_EOL_USE_FLAGS_I_KNOW_WHAT_I_AM_DOING=yes"
fi
# Make sure people who are using tcp wrappers are notified of its removal. #531156
if grep -qs '^ *sshd *:' "${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 ${EROOT}/etc/hosts.{allow,deny} please."
fi
}
src_prepare() {
sed -i \
-e "/_PATH_XAUTH/s:/usr/X11R6/bin/xauth:${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
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::'
)
# _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
--with-hardening
$(use_with audit audit linux)
$(use_with kerberos kerberos5 "${EPREFIX}"/usr)
$(use_with ldns)
$(use_with libedit)
$(use_with pam)
$(use_with pie)
$(use_with selinux)
$(use_with security-key security-key-builtin)
$(use_with ssl openssl)
$(use_with ssl ssl-engine)
)
if use elibc_musl; then
# musl defines bogus values for UTMP_FILE and WTMP_FILE
# https://bugs.gentoo.org/753230
myconf+=( --disable-utmp --disable-wtmp )
fi
# Workaround for Clang 15 miscompilation with -fzero-call-used-regs=all
# bug #869839 (https://github.com/llvm/llvm-project/issues/57692)
tc-is-clang && myconf+=( --without-hardening )
econf "${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 "${tests[@]}" </dev/null
}
# Gentoo tweaks to default config files.
tweak_ssh_configs() {
local locale_vars=(
# These are language variables that POSIX defines.
# http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html#tag_08_02
LANG LC_ALL LC_COLLATE LC_CTYPE LC_MESSAGES LC_MONETARY LC_NUMERIC LC_TIME
# These are the GNU extensions.
# https://www.gnu.org/software/autoconf/manual/html_node/Special-Shell-Variables.html
LANGUAGE LC_ADDRESS LC_IDENTIFICATION LC_MEASUREMENT LC_NAME LC_PAPER LC_TELEPHONE
)
dodir /etc/ssh/ssh_config.d /etc/ssh/sshd_config.d
cat <<-EOF >> "${ED}"/etc/ssh/ssh_config || die
Include "${EPREFIX}/etc/ssh/ssh_config.d/*.conf"
EOF
cat <<-EOF >> "${ED}"/etc/ssh/sshd_config || die
Include "${EPREFIX}/etc/ssh/sshd_config.d/*.conf"
EOF
cat <<-EOF >> "${ED}"/etc/ssh/ssh_config.d/9999999gentoo.conf || die
# Send locale environment variables (bug #367017)
SendEnv ${locale_vars[*]}
# Send COLORTERM to match TERM (bug #658540)
SendEnv COLORTERM
EOF
cat <<-EOF >> "${ED}"/etc/ssh/ssh_config.d/9999999gentoo-security.conf || die
RevokedHostKeys "${EPREFIX}/etc/ssh/ssh_revoked_hosts"
EOF
cat <<-EOF >> "${ED}"/etc/ssh/ssh_revoked_hosts || die
# https://github.blog/2023-03-23-we-updated-our-rsa-ssh-host-key/
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAq2A7hRGmdnm9tUDbO9IDSwBK6TbQa+PXYPCPy6rbTrTtw7PHkccKrpp0yVhp5HdEIcKr6pLlVDBfOLX9QUsyCOV0wzfjIJNlGEYsdlLJizHhbn2mUjvSAHQqZETYP81eFzLQNnPHt4EVVUh7VfDESU84KezmD5QlWpXLmvU31/yMf+Se8xhHTvKSCZIFImWwoG6mbUoWf9nzpIoaSjB+weqqUUmpaaasXVal72J+UX2B+2RPW3RcT0eOzQgqlJL3RKrTJvdsjE3JEAvGq3lGHSZXy28G3skua2SmVi/w4yCE6gbODqnTWlg7+wC604ydGXA8VJiS5ap43JXiUFFAaQ==
EOF
cat <<-EOF >> "${ED}"/etc/ssh/sshd_config.d/9999999gentoo.conf || die
# Allow client to pass locale environment variables (bug #367017)
AcceptEnv ${locale_vars[*]}
# Allow client to pass COLORTERM to match TERM (bug #658540)
AcceptEnv COLORTERM
EOF
if use pam ; then
cat <<-EOF >> "${ED}"/etc/ssh/sshd_config.d/9999999gentoo-pam.conf || die
UsePAM yes
# This interferes with PAM.
PasswordAuthentication no
# PAM can do its own handling of MOTD.
PrintMotd no
PrintLastLog no
EOF
fi
if use livecd ; then
cat <<-EOF >> "${ED}"/etc/ssh/sshd_config.d/9999999gentoo-livecd.conf || die
# Allow root login with password on livecds.
PermitRootLogin Yes
EOF
fi
}
src_install() {
emake install-nokeys DESTDIR="${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 "${FILESDIR}"/sshd.pam_include.2 sshd
fi
tweak_ssh_configs
doman contrib/ssh-copy-id.1
dodoc ChangeLog CREDITS OVERVIEW README* TODO sshd_config
diropts -m 0700
dodir /etc/skel/.ssh
rmdir "${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
}
|