diff options
Diffstat (limited to 'regress/cert-file.sh')
| -rw-r--r-- | regress/cert-file.sh | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/regress/cert-file.sh b/regress/cert-file.sh new file mode 100644 index 0000000..94e672a --- /dev/null +++ b/regress/cert-file.sh @@ -0,0 +1,166 @@ +# $OpenBSD: cert-file.sh,v 1.8 2019/11/26 23:43:10 djm Exp $ +# Placed in the Public Domain. + +tid="ssh with certificates" + +rm -f $OBJ/user_ca_key* $OBJ/user_key* +rm -f $OBJ/cert_user_key* + +# Create a CA key +${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_ca_key1 ||\ + fatal "ssh-keygen failed" +${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_ca_key2 ||\ + fatal "ssh-keygen failed" + +# Make some keys and certificates. +${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key1 || \ + fatal "ssh-keygen failed" +${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key2 || \ + fatal "ssh-keygen failed" +${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key3 || \ + fatal "ssh-keygen failed" +${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key4 || \ + fatal "ssh-keygen failed" +${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key5 || \ + fatal "ssh-keygen failed" + +# Move the certificate to a different address to better control +# when it is offered. +${SSHKEYGEN} -q -s $OBJ/user_ca_key1 -I "regress user key for $USER" \ + -z $$ -n ${USER} $OBJ/user_key1 || + fatal "couldn't sign user_key1 with user_ca_key1" +mv $OBJ/user_key1-cert.pub $OBJ/cert_user_key1_1.pub +${SSHKEYGEN} -q -s $OBJ/user_ca_key2 -I "regress user key for $USER" \ + -z $$ -n ${USER} $OBJ/user_key1 || + fatal "couldn't sign user_key1 with user_ca_key2" +mv $OBJ/user_key1-cert.pub $OBJ/cert_user_key1_2.pub +${SSHKEYGEN} -q -s $OBJ/user_ca_key1 -I "regress user key for $USER" \ + -z $$ -n ${USER} $OBJ/user_key3 || + fatal "couldn't sign user_key3 with user_ca_key1" +rm $OBJ/user_key3.pub # to test use of private key w/o public half. +${SSHKEYGEN} -q -s $OBJ/user_ca_key1 -I "regress user key for $USER" \ + -z $$ -n ${USER} $OBJ/user_key4 || + fatal "couldn't sign user_key4 with user_ca_key1" +rm $OBJ/user_key4 $OBJ/user_key4.pub # to test no matching pub/private key case. + +trace 'try with identity files' +opts="-F $OBJ/ssh_proxy -oIdentitiesOnly=yes" +opts2="$opts -i $OBJ/user_key1 -i $OBJ/user_key2" +echo "cert-authority $(cat $OBJ/user_ca_key1.pub)" > $OBJ/authorized_keys_$USER + +# Make a clean config that doesn't have any pre-added identities. +cat $OBJ/ssh_proxy | grep -v IdentityFile > $OBJ/no_identity_config + +# XXX: verify that certificate used was what we expect. Needs exposure of +# keys via environment variable or similar. + + # Key with no .pub should work - finding the equivalent *-cert.pub. +verbose "identity cert with no plain public file" +${SSH} -F $OBJ/no_identity_config -oIdentitiesOnly=yes \ + -i $OBJ/user_key3 somehost exit 52 +[ $? -ne 52 ] && fail "ssh failed" + +# CertificateFile matching private key with no .pub file should work. +verbose "CertificateFile with no plain public file" +${SSH} -F $OBJ/no_identity_config -oIdentitiesOnly=yes \ + -oCertificateFile=$OBJ/user_key3-cert.pub \ + -i $OBJ/user_key3 somehost exit 52 +[ $? -ne 52 ] && fail "ssh failed" + +# Just keys should fail +verbose "plain keys" +${SSH} $opts2 somehost exit 52 +r=$? +if [ $r -eq 52 ]; then + fail "ssh succeeded with no certs" +fi + +# Keys with untrusted cert should fail. +verbose "untrusted cert" +opts3="$opts2 -oCertificateFile=$OBJ/cert_user_key1_2.pub" +${SSH} $opts3 somehost exit 52 +r=$? +if [ $r -eq 52 ]; then + fail "ssh succeeded with bad cert" +fi + +# Good cert with bad key should fail. +verbose "good cert, bad key" +opts3="$opts -i $OBJ/user_key2" +opts3="$opts3 -oCertificateFile=$OBJ/cert_user_key1_1.pub" +${SSH} $opts3 somehost exit 52 +r=$? +if [ $r -eq 52 ]; then + fail "ssh succeeded with no matching key" +fi + +# Keys with one trusted cert, should succeed. +verbose "single trusted" +opts3="$opts2 -oCertificateFile=$OBJ/cert_user_key1_1.pub" +${SSH} $opts3 somehost exit 52 +r=$? +if [ $r -ne 52 ]; then + fail "ssh failed with trusted cert and key" +fi + +# Multiple certs and keys, with one trusted cert, should succeed. +verbose "multiple trusted" +opts3="$opts2 -oCertificateFile=$OBJ/cert_user_key1_2.pub" +opts3="$opts3 -oCertificateFile=$OBJ/cert_user_key1_1.pub" +${SSH} $opts3 somehost exit 52 +r=$? +if [ $r -ne 52 ]; then + fail "ssh failed with multiple certs" +fi + +#next, using an agent in combination with the keys +SSH_AUTH_SOCK=/nonexistent ${SSHADD} -l > /dev/null 2>&1 +if [ $? -ne 2 ]; then + fatal "ssh-add -l did not fail with exit code 2" +fi + +trace "start agent" +eval `${SSHAGENT} ${EXTRA_AGENT_ARGS} -s` > /dev/null +r=$? +if [ $r -ne 0 ]; then + fatal "could not start ssh-agent: exit code $r" +fi + +# add private keys to agent +${SSHADD} -k $OBJ/user_key2 > /dev/null 2>&1 +if [ $? -ne 0 ]; then + fatal "ssh-add did not succeed with exit code 0" +fi +${SSHADD} -k $OBJ/user_key1 > /dev/null 2>&1 +if [ $? -ne 0 ]; then + fatal "ssh-add did not succeed with exit code 0" +fi + +# try ssh with the agent and certificates +opts="-F $OBJ/ssh_proxy" +# with no certificates, should fail +${SSH} $opts somehost exit 52 +if [ $? -eq 52 ]; then + fail "ssh connect with agent in succeeded with no cert" +fi + +#with an untrusted certificate, should fail +opts="$opts -oCertificateFile=$OBJ/cert_user_key1_2.pub" +${SSH} $opts somehost exit 52 +if [ $? -eq 52 ]; then + fail "ssh connect with agent in succeeded with bad cert" +fi + +#with an additional trusted certificate, should succeed +opts="$opts -oCertificateFile=$OBJ/cert_user_key1_1.pub" +${SSH} $opts somehost exit 52 +if [ $? -ne 52 ]; then + fail "ssh connect with agent in failed with good cert" +fi + +trace "kill agent" +${SSHAGENT} -k > /dev/null + +#cleanup +rm -f $OBJ/user_ca_key* $OBJ/user_key* +rm -f $OBJ/cert_user_key* |