-# $OpenBSD: agent.sh,v 1.12 2017/04/30 23:34:55 djm Exp $
+# $OpenBSD: agent.sh,v 1.13 2017/12/19 00:49:30 djm Exp $
# Placed in the Public Domain.
tid="simple agent test"
eval `${SSHAGENT} -s` > /dev/null
r=$?
if [ $r -ne 0 ]; then
- fail "could not start ssh-agent: exit code $r"
-else
- ${SSHADD} -l > /dev/null 2>&1
- if [ $? -ne 1 ]; then
- fail "ssh-add -l did not fail with exit code 1"
- fi
- 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
- ${SSHKEYGEN} -q -N '' -t $t -f $OBJ/$t-agent ||\
- fail "ssh-keygen for $t-agent 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 did succeed exit code 0"
- fi
- done
- ${SSHADD} -l > /dev/null 2>&1
- r=$?
- 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"
+ 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 did succeed exit code 0"
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 $OBJ/ssh_proxy somehost exit 52
+trace "simple connect via agent"
+${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"
+ ${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 $r)"
- fi
+trace "agent forwarding"
+${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
- trace "delete all agent keys"
- ${SSHADD} -D > /dev/null 2>&1
+(printf 'cert-authority,principals="estragon" '; cat $OBJ/user_ca_key.pub) \
+ > $OBJ/authorized_keys_$USER
+for t in ${SSH_KEYTYPES}; do
+ 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 0 ]; then
- fail "ssh-add -D failed: exit code $r"
+ if [ $r -ne 52 ]; then
+ fail "ssh connect with failed (exit code $r)"
fi
+done
- trace "kill agent"
- ${SSHAGENT} -k > /dev/null
+trace "delete all agent keys"
+${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