cert-file.sh revision 323134
1# $OpenBSD: cert-file.sh,v 1.4 2016/12/16 02:48:55 djm Exp $ 2# Placed in the Public Domain. 3 4tid="ssh with certificates" 5 6rm -f $OBJ/user_ca_key* $OBJ/user_key* 7rm -f $OBJ/cert_user_key* 8 9# Create a CA key 10${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_ca_key1 ||\ 11 fatal "ssh-keygen failed" 12${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_ca_key2 ||\ 13 fatal "ssh-keygen failed" 14 15# Make some keys and certificates. 16${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key1 || \ 17 fatal "ssh-keygen failed" 18${SSHKEYGEN} -q -N '' -t ed25519 -f $OBJ/user_key2 || \ 19 fatal "ssh-keygen failed" 20# Move the certificate to a different address to better control 21# when it is offered. 22${SSHKEYGEN} -q -s $OBJ/user_ca_key1 -I "regress user key for $USER" \ 23 -z $$ -n ${USER} $OBJ/user_key1 || 24 fail "couldn't sign user_key1 with user_ca_key1" 25mv $OBJ/user_key1-cert.pub $OBJ/cert_user_key1_1.pub 26${SSHKEYGEN} -q -s $OBJ/user_ca_key2 -I "regress user key for $USER" \ 27 -z $$ -n ${USER} $OBJ/user_key1 || 28 fail "couldn't sign user_key1 with user_ca_key2" 29mv $OBJ/user_key1-cert.pub $OBJ/cert_user_key1_2.pub 30 31trace 'try with identity files' 32opts="-F $OBJ/ssh_proxy -oIdentitiesOnly=yes" 33opts2="$opts -i $OBJ/user_key1 -i $OBJ/user_key2" 34echo "cert-authority $(cat $OBJ/user_ca_key1.pub)" > $OBJ/authorized_keys_$USER 35 36for p in ${SSH_PROTOCOLS}; do 37 # Just keys should fail 38 ${SSH} $opts2 somehost exit 5$p 39 r=$? 40 if [ $r -eq 5$p ]; then 41 fail "ssh succeeded with no certs in protocol $p" 42 fi 43 44 # Keys with untrusted cert should fail. 45 opts3="$opts2 -oCertificateFile=$OBJ/cert_user_key1_2.pub" 46 ${SSH} $opts3 somehost exit 5$p 47 r=$? 48 if [ $r -eq 5$p ]; then 49 fail "ssh succeeded with bad cert in protocol $p" 50 fi 51 52 # Good cert with bad key should fail. 53 opts3="$opts -i $OBJ/user_key2" 54 opts3="$opts3 -oCertificateFile=$OBJ/cert_user_key1_1.pub" 55 ${SSH} $opts3 somehost exit 5$p 56 r=$? 57 if [ $r -eq 5$p ]; then 58 fail "ssh succeeded with no matching key in protocol $p" 59 fi 60 61 # Keys with one trusted cert, should succeed. 62 opts3="$opts2 -oCertificateFile=$OBJ/cert_user_key1_1.pub" 63 ${SSH} $opts3 somehost exit 5$p 64 r=$? 65 if [ $r -ne 5$p ]; then 66 fail "ssh failed with trusted cert and key in protocol $p" 67 fi 68 69 # Multiple certs and keys, with one trusted cert, should succeed. 70 opts3="$opts2 -oCertificateFile=$OBJ/cert_user_key1_2.pub" 71 opts3="$opts3 -oCertificateFile=$OBJ/cert_user_key1_1.pub" 72 ${SSH} $opts3 somehost exit 5$p 73 r=$? 74 if [ $r -ne 5$p ]; then 75 fail "ssh failed with multiple certs in protocol $p" 76 fi 77 78 #Keys with trusted certificate specified in config options, should succeed. 79 opts3="$opts2 -oCertificateFile=$OBJ/cert_user_key1_1.pub" 80 ${SSH} $opts3 somehost exit 5$p 81 r=$? 82 if [ $r -ne 5$p ]; then 83 fail "ssh failed with trusted cert in config in protocol $p" 84 fi 85done 86 87#next, using an agent in combination with the keys 88SSH_AUTH_SOCK=/nonexistent ${SSHADD} -l > /dev/null 2>&1 89if [ $? -ne 2 ]; then 90 fatal "ssh-add -l did not fail with exit code 2" 91fi 92 93trace "start agent" 94eval `${SSHAGENT} -s` > /dev/null 95r=$? 96if [ $r -ne 0 ]; then 97 fatal "could not start ssh-agent: exit code $r" 98fi 99 100# add private keys to agent 101${SSHADD} -k $OBJ/user_key2 > /dev/null 2>&1 102if [ $? -ne 0 ]; then 103 fatal "ssh-add did not succeed with exit code 0" 104fi 105${SSHADD} -k $OBJ/user_key1 > /dev/null 2>&1 106if [ $? -ne 0 ]; then 107 fatal "ssh-add did not succeed with exit code 0" 108fi 109 110# try ssh with the agent and certificates 111# note: ssh agent only uses certificates in protocol 2 112opts="-F $OBJ/ssh_proxy" 113# with no certificates, shoud fail 114${SSH} -2 $opts somehost exit 52 115if [ $? -eq 52 ]; then 116 fail "ssh connect with agent in protocol 2 succeeded with no cert" 117fi 118 119#with an untrusted certificate, should fail 120opts="$opts -oCertificateFile=$OBJ/cert_user_key1_2.pub" 121${SSH} -2 $opts somehost exit 52 122if [ $? -eq 52 ]; then 123 fail "ssh connect with agent in protocol 2 succeeded with bad cert" 124fi 125 126#with an additional trusted certificate, should succeed 127opts="$opts -oCertificateFile=$OBJ/cert_user_key1_1.pub" 128${SSH} -2 $opts somehost exit 52 129if [ $? -ne 52 ]; then 130 fail "ssh connect with agent in protocol 2 failed with good cert" 131fi 132 133trace "kill agent" 134${SSHAGENT} -k > /dev/null 135 136#cleanup 137rm -f $OBJ/user_ca_key* $OBJ/user_key* 138rm -f $OBJ/cert_user_key* 139