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# $OpenBSD: agent.sh,v 1.16 2019/11/26 23:43:10 djm Exp $
# Placed in the Public Domain.
tid="simple agent test"
SSH_AUTH_SOCK=/nonexistent ${SSHADD} -l > /dev/null 2>&1
if [ $? -ne 2 ]; then
fail "ssh-add -l did not fail with exit code 2"
fi
trace "start agent, args ${EXTRA_AGENT_ARGS} -s"
eval `${SSHAGENT} ${EXTRA_AGENT_ARGS} -s` > /dev/null
r=$?
if [ $r -ne 0 ]; then
fatal "could not start ssh-agent: exit code $r"
fi
${SSHADD} -l > /dev/null 2>&1
if [ $? -ne 1 ]; then
fail "ssh-add -l did not fail with exit code 1"
fi
rm -f $OBJ/user_ca_key $OBJ/user_ca_key.pub
${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_ca_key \
|| fatal "ssh-keygen failed"
trace "overwrite authorized keys"
printf '' > $OBJ/authorized_keys_$USER
for t in ${SSH_KEYTYPES}; do
# generate user key for agent
rm -f $OBJ/$t-agent $OBJ/$t-agent.pub*
${SSHKEYGEN} -q -N '' -t $t -f $OBJ/$t-agent ||\
fatal "ssh-keygen for $t-agent failed"
# Make a certificate for each too.
${SSHKEYGEN} -qs $OBJ/user_ca_key -I "$t cert" \
-n estragon $OBJ/$t-agent.pub || fatal "ca sign failed"
# add to authorized keys
cat $OBJ/$t-agent.pub >> $OBJ/authorized_keys_$USER
# add privat key to agent
${SSHADD} $OBJ/$t-agent #> /dev/null 2>&1
if [ $? -ne 0 ]; then
fail "ssh-add failed exit code $?"
fi
# Remove private key to ensure that we aren't accidentally using it.
rm -f $OBJ/$t-agent
done
# Remove explicit identity directives from ssh_proxy
mv $OBJ/ssh_proxy $OBJ/ssh_proxy_bak
grep -vi identityfile $OBJ/ssh_proxy_bak > $OBJ/ssh_proxy
${SSHADD} -l > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -l failed: exit code $r"
fi
# the same for full pubkey output
${SSHADD} -L > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -L failed: exit code $r"
fi
trace "simple connect via agent"
${SSH} -F $OBJ/ssh_proxy somehost exit 52
r=$?
if [ $r -ne 52 ]; then
fail "ssh connect with failed (exit code $r)"
fi
for t in ${SSH_KEYTYPES}; do
trace "connect via agent using $t key"
if [ "$t" = "ssh-dss" ]; then
echo "PubkeyAcceptedKeyTypes +ssh-dss" >> $OBJ/ssh_proxy
echo "PubkeyAcceptedKeyTypes +ssh-dss" >> $OBJ/sshd_proxy
fi
${SSH} -F $OBJ/ssh_proxy -i $OBJ/$t-agent.pub -oIdentitiesOnly=yes \
somehost exit 52
r=$?
if [ $r -ne 52 ]; then
fail "ssh connect with failed (exit code $r)"
fi
done
trace "agent forwarding"
${SSH} -A -F $OBJ/ssh_proxy somehost ${SSHADD} -l > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -l via agent fwd failed (exit code $r)"
fi
${SSH} -A -F $OBJ/ssh_proxy somehost \
"${SSH} -F $OBJ/ssh_proxy somehost exit 52"
r=$?
if [ $r -ne 52 ]; then
fail "agent fwd failed (exit code $r)"
fi
(printf 'cert-authority,principals="estragon" '; cat $OBJ/user_ca_key.pub) \
> $OBJ/authorized_keys_$USER
for t in ${SSH_KEYTYPES}; do
if [ "$t" != "ssh-dss" ]; then
trace "connect via agent using $t key"
${SSH} -F $OBJ/ssh_proxy -i $OBJ/$t-agent.pub \
-oCertificateFile=$OBJ/$t-agent-cert.pub \
-oIdentitiesOnly=yes somehost exit 52
r=$?
if [ $r -ne 52 ]; then
fail "ssh connect with failed (exit code $r)"
fi
fi
done
trace "delete all agent keys"
${SSHADD} -D > /dev/null 2>&1
r=$?
if [ $r -ne 0 ]; then
fail "ssh-add -D failed: exit code $r"
fi
trace "kill agent"
${SSHAGENT} -k > /dev/null
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