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 "${FILESDIR}"/sshd_at.service.1 '[email protected]' +} + +pkg_preinst() { + if ! use ssl && has_version "${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 +}
