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![Ed Maste](/assets/img/avatar_default.png)
Some notable changes, from upstream's release notes: - sshd(8): Remove support for obsolete "host/port" syntax. - ssh(1): When prompting whether to record a new host key, accept the key fingerprint as a synonym for "yes". - ssh-keygen(1): when acting as a CA and signing certificates with an RSA key, default to using the rsa-sha2-512 signature algorithm. - ssh(1), sshd(8), ssh-keygen(1): this release removes the "ssh-rsa" (RSA/SHA1) algorithm from those accepted for certificate signatures. - ssh-sk-helper(8): this is a new binary. It is used by the FIDO/U2F support to provide address-space isolation for token middleware libraries (including the internal one). - ssh(1): this release enables UpdateHostkeys by default subject to some conservative preconditions. - scp(1): this release changes the behaviour of remote to remote copies (e.g. "scp host-a:/path host-b:") to transfer through the local host by default. - scp(1): experimental support for transfers using the SFTP protocol as a replacement for the venerable SCP/RCP protocol that it has traditionally used. Additional integration work is needed to support FIDO/U2F in the base system. Deprecation Notice ------------------ OpenSSH will disable the ssh-rsa signature scheme by default in the next release. Reviewed by: imp MFC after: 1 month Relnotes: Yes Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D29985
120 lines
4.8 KiB
Bash
120 lines
4.8 KiB
Bash
# $OpenBSD: sshcfgparse.sh,v 1.9 2021/06/08 07:05:27 dtucker Exp $
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# Placed in the Public Domain.
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tid="ssh config parse"
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dsa=0
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for t in $SSH_KEYTYPES; do
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case "$t" in
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ssh-dss) dsa=1 ;;
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esac
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done
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expect_result_present() {
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_str="$1" ; shift
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for _expect in "$@" ; do
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echo "$f" | tr ',' '\n' | grep "^$_expect\$" >/dev/null
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if test $? -ne 0 ; then
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fail "missing expected \"$_expect\" from \"$_str\""
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fi
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done
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}
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expect_result_absent() {
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_str="$1" ; shift
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for _expect in "$@" ; do
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echo "$f" | tr ',' '\n' | grep "^$_expect\$" >/dev/null
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if test $? -eq 0 ; then
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fail "unexpected \"$_expect\" present in \"$_str\""
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fi
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done
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}
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verbose "reparse minimal config"
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(${SSH} -G -F $OBJ/ssh_config somehost >$OBJ/ssh_config.1 &&
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${SSH} -G -F $OBJ/ssh_config.1 somehost >$OBJ/ssh_config.2 &&
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diff $OBJ/ssh_config.1 $OBJ/ssh_config.2) || fail "failed to reparse minimal"
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verbose "ssh -W opts"
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f=`${SSH} -GF $OBJ/ssh_config host | awk '/exitonforwardfailure/{print $2}'`
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test "$f" = "no" || fail "exitonforwardfailure default"
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f=`${SSH} -GF $OBJ/ssh_config -W a:1 h | awk '/exitonforwardfailure/{print $2}'`
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test "$f" = "yes" || fail "exitonforwardfailure enable"
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f=`${SSH} -GF $OBJ/ssh_config -W a:1 -o exitonforwardfailure=no h | \
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awk '/exitonforwardfailure/{print $2}'`
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test "$f" = "no" || fail "exitonforwardfailure override"
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f=`${SSH} -GF $OBJ/ssh_config host | awk '/clearallforwardings/{print $2}'`
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test "$f" = "no" || fail "clearallforwardings default"
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f=`${SSH} -GF $OBJ/ssh_config -W a:1 h | awk '/clearallforwardings/{print $2}'`
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test "$f" = "yes" || fail "clearallforwardings enable"
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f=`${SSH} -GF $OBJ/ssh_config -W a:1 -o clearallforwardings=no h | \
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awk '/clearallforwardings/{print $2}'`
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test "$f" = "no" || fail "clearallforwardings override"
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verbose "user first match"
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user=`awk '$1=="User" {print $2}' $OBJ/ssh_config`
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f=`${SSH} -GF $OBJ/ssh_config host | awk '/^user /{print $2}'`
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test "$f" = "$user" || fail "user from config, expected '$user' got '$f'"
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f=`${SSH} -GF $OBJ/ssh_config -o user=foo -l bar baz@host | awk '/^user /{print $2}'`
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test "$f" = "foo" || fail "user first match -oUser, expected 'foo' got '$f' "
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f=`${SSH} -GF $OBJ/ssh_config -lbar baz@host user=foo baz@host | awk '/^user /{print $2}'`
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test "$f" = "bar" || fail "user first match -l, expected 'bar' got '$f'"
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f=`${SSH} -GF $OBJ/ssh_config baz@host -o user=foo -l bar baz@host | awk '/^user /{print $2}'`
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test "$f" = "baz" || fail "user first match user@host, expected 'baz' got '$f'"
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verbose "pubkeyacceptedalgorithms"
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# Default set
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f=`${SSH} -GF none host | awk '/^pubkeyacceptedalgorithms /{print $2}'`
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expect_result_present "$f" "ssh-ed25519" "ssh-ed25519-cert-v01.*"
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expect_result_absent "$f" "ssh-dss"
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# Explicit override
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f=`${SSH} -GF none -opubkeyacceptedalgorithms=ssh-ed25519 host | \
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awk '/^pubkeyacceptedalgorithms /{print $2}'`
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expect_result_present "$f" "ssh-ed25519"
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expect_result_absent "$f" "ssh-ed25519-cert-v01.*" "ssh-dss"
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# Removal from default set
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f=`${SSH} -GF none -opubkeyacceptedalgorithms=-ssh-ed25519-cert* host | \
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awk '/^pubkeyacceptedalgorithms /{print $2}'`
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expect_result_present "$f" "ssh-ed25519"
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expect_result_absent "$f" "ssh-ed25519-cert-v01.*" "ssh-dss"
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f=`${SSH} -GF none -opubkeyacceptedalgorithms=-ssh-ed25519 host | \
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awk '/^pubkeyacceptedalgorithms /{print $2}'`
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expect_result_present "$f" "ssh-ed25519-cert-v01.*"
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expect_result_absent "$f" "ssh-ed25519" "ssh-dss"
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# Append to default set.
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# This is not tested when built !WITH_OPENSSL
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if [ "$dsa" = "1" ]; then
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f=`${SSH} -GF none -opubkeyacceptedalgorithms=+ssh-dss-cert* host | \
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awk '/^pubkeyacceptedalgorithms /{print $2}'`
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expect_result_present "$f" "ssh-ed25519" "ssh-dss-cert-v01.*"
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expect_result_absent "$f" "ssh-dss"
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f=`${SSH} -GF none -opubkeyacceptedalgorithms=+ssh-dss host | \
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awk '/^pubkeyacceptedalgorithms /{print $2}'`
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expect_result_present "$f" "ssh-ed25519" "ssh-ed25519-cert-v01.*" "ssh-dss"
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expect_result_absent "$f" "ssh-dss-cert-v01.*"
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fi
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verbose "agentforwarding"
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f=`${SSH} -GF none host | awk '/^forwardagent /{print$2}'`
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expect_result_present "$f" "no"
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f=`${SSH} -GF none -oforwardagent=no host | awk '/^forwardagent /{print$2}'`
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expect_result_present "$f" "no"
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f=`${SSH} -GF none -oforwardagent=yes host | awk '/^forwardagent /{print$2}'`
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expect_result_present "$f" "yes"
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f=`${SSH} -GF none '-oforwardagent=SSH_AUTH_SOCK.forward' host | awk '/^forwardagent /{print$2}'`
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expect_result_present "$f" "SSH_AUTH_SOCK.forward"
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verbose "command line override"
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cat >$OBJ/ssh_config.0 <<EOD
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Host *
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IPQoS af21 cs1
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TunnelDevice 1:2
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EOD
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f=`${SSH} -GF $OBJ/ssh_config.0 -oipqos=cs1 host | awk '/^ipqos /{print$2}'`
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expect_result_present "$f" "cs1"
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f=`${SSH} -GF $OBJ/ssh_config.0 -otunneldevice=3:4 host | awk '/^tunneldevice /{print$2}'`
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expect_result_present "$f" "3:4"
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# cleanup
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rm -f $OBJ/ssh_config.[012]
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