- djm@cvs.openbsd.org 2010/05/07 11:31:26

     [regress/Makefile regress/cert-userkey.sh]
     regress tests for AuthorizedPrincipalsFile and "principals=" key option.
     feedback and ok markus@

1 files changed, 112 insertions, 5 deletions

diff --git a/regress/cert-userkey.sh b/regress/cert-userkey.sh
index 88d6d70a4..8fd1b48db 100644
--- a/regress/cert-userkey.sh
+++ b/regress/cert-userkey.sh
@@ -1,4 +1,4 @@
-#       $OpenBSD: cert-userkey.sh,v 1.4 2010/04/16 01:58:45 djm Exp $
+#       $OpenBSD: cert-userkey.sh,v 1.5 2010/05/07 11:31:26 djm Exp $
 #       Placed in the Public Domain.
 
 tid="certified user keys"
@@ -18,16 +18,100 @@ for ktype in rsa dsa ; do
                 fail "ssh-keygen of cert_user_key_${ktype} failed"
         ${SSHKEYGEN} -q -s $OBJ/user_ca_key -I \
             "regress user key for $USER" \
-            -n $USER $OBJ/cert_user_key_${ktype} ||
+            -n ${USER},mekmitasdigoat $OBJ/cert_user_key_${ktype} ||
                 fail "couldn't sign cert_user_key_${ktype}"
         cp $OBJ/cert_user_key_${ktype} $OBJ/cert_user_key_${ktype}_v00
         cp $OBJ/cert_user_key_${ktype}.pub $OBJ/cert_user_key_${ktype}_v00.pub
         ${SSHKEYGEN} -q -t v00 -s $OBJ/user_ca_key -I \
             "regress user key for $USER" \
-            -n $USER $OBJ/cert_user_key_${ktype}_v00 ||
+            -n ${USER},mekmitasdigoat $OBJ/cert_user_key_${ktype}_v00 ||
                 fail "couldn't sign cert_user_key_${ktype}_v00"
 done
 
+# Test explicitly-specified principals
+for ktype in rsa dsa rsa_v00 dsa_v00 ; do 
+        for privsep in yes no ; do
+                _prefix="${ktype} privsep $privsep"
+
+                # Setup for AuthorizedPrincipalsFile
+                rm -f $OBJ/authorized_keys_$USER
+                (
+                        cat $OBJ/sshd_proxy_bak
+                        echo "UsePrivilegeSeparation $privsep"
+                        echo "AuthorizedPrincipalsFile " \
+                            "$OBJ/authorized_principals_%u"
+                        echo "TrustedUserCAKeys $OBJ/user_ca_key.pub"
+                ) > $OBJ/sshd_proxy
+
+                # Missing authorized_principals
+                verbose "$tid: ${_prefix} missing authorized_principals"
+                rm -f $OBJ/authorized_principals_$USER
+                ${SSH} -2i $OBJ/cert_user_key_${ktype} \
+                    -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1
+                if [ $? -eq 0 ]; then
+                        fail "ssh cert connect succeeded unexpectedly"
+                fi
+
+                # Empty authorized_principals
+                verbose "$tid: ${_prefix} empty authorized_principals"
+                echo > $OBJ/authorized_principals_$USER
+                ${SSH} -2i $OBJ/cert_user_key_${ktype} \
+                    -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1
+                if [ $? -eq 0 ]; then
+                        fail "ssh cert connect succeeded unexpectedly"
+                fi
+        
+                # Wrong authorized_principals
+                verbose "$tid: ${_prefix} wrong authorized_principals"
+                echo gregorsamsa > $OBJ/authorized_principals_$USER
+                ${SSH} -2i $OBJ/cert_user_key_${ktype} \
+                    -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1
+                if [ $? -eq 0 ]; then
+                        fail "ssh cert connect succeeded unexpectedly"
+                fi
+
+                # Correct authorized_principals
+                verbose "$tid: ${_prefix} correct authorized_principals"
+                echo mekmitasdigoat > $OBJ/authorized_principals_$USER
+                ${SSH} -2i $OBJ/cert_user_key_${ktype} \
+                    -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1
+                if [ $? -ne 0 ]; then
+                        fail "ssh cert connect failed"
+                fi
+
+                # Setup for principals= key option
+                rm -f $OBJ/authorized_principals_$USER
+                (
+                        cat $OBJ/sshd_proxy_bak
+                        echo "UsePrivilegeSeparation $privsep"
+                ) > $OBJ/sshd_proxy
+
+                # Wrong principals list
+                verbose "$tid: ${_prefix} wrong principals key option"
+                (
+                        echon 'cert-authority,principals="gregorsamsa" '
+                        cat $OBJ/user_ca_key.pub
+                ) > $OBJ/authorized_keys_$USER
+                ${SSH} -2i $OBJ/cert_user_key_${ktype} \
+                    -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1
+                if [ $? -eq 0 ]; then
+                        fail "ssh cert connect succeeded unexpectedly"
+                fi
+
+                # Correct principals list
+                verbose "$tid: ${_prefix} correct principals key option"
+                (
+                        echon 'cert-authority,principals="mekmitasdigoat" '
+                        cat $OBJ/user_ca_key.pub
+                ) > $OBJ/authorized_keys_$USER
+                ${SSH} -2i $OBJ/cert_user_key_${ktype} \
+                    -F $OBJ/ssh_proxy somehost true >/dev/null 2>&1
+                if [ $? -ne 0 ]; then
+                        fail "ssh cert connect failed"
+                fi
+        done
+done
+
 basic_tests() {
         auth=$1
         if test "x$auth" = "xauthorized_keys" ; then
@@ -108,6 +192,7 @@ test_one() {
         result=$2
         sign_opts=$3
         auth_choice=$4
+        auth_opt=$5
 
         if test "x$auth_choice" = "x" ; then
                 auth_choice="authorized_keys TrustedUserCAKeys"
@@ -119,14 +204,16 @@ test_one() {
                         if test "x$auth" = "xauthorized_keys" ; then
                                 # Add CA to authorized_keys
                                 (
-                                        echon 'cert-authority '
+                                        echon "cert-authority${auth_opt} "
                                         cat $OBJ/user_ca_key.pub
                                 ) > $OBJ/authorized_keys_$USER
                         else
                                 echo > $OBJ/authorized_keys_$USER
                                 echo "TrustedUserCAKeys $OBJ/user_ca_key.pub" \
                                     >> $OBJ/sshd_proxy
-        
+                                if test "x$auth_opt" != "x" ; then
+                                        echo $auth_opt >> $OBJ/sshd_proxy
+                                fi
                         fi
                         
                         verbose "$tid: $ident auth $auth expect $result $ktype"
@@ -165,7 +252,26 @@ test_one "force-command"	failure "-n ${USER} -Oforce-command=false"
 test_one "empty principals"     success "" authorized_keys
 test_one "empty principals"     failure "" TrustedUserCAKeys
 
+# Check explicitly-specified principals: an empty principals list in the cert
+# should always be refused.
+
+# AuthorizedPrincipalsFile
+rm -f $OBJ/authorized_keys_$USER
+echo mekmitasdigoat > $OBJ/authorized_principals_$USER
+test_one "AuthorizedPrincipalsFile principals" success "-n mekmitasdigoat" \
+    TrustedUserCAKeys "AuthorizedPrincipalsFile $OBJ/authorized_principals_%u"
+test_one "AuthorizedPrincipalsFile no principals" failure "" \
+    TrustedUserCAKeys "AuthorizedPrincipalsFile $OBJ/authorized_principals_%u"
+
+# principals= key option
+rm -f $OBJ/authorized_principals_$USER
+test_one "principals key option principals" success "-n mekmitasdigoat" \
+    authorized_keys ',principals="mekmitasdigoat"'
+test_one "principals key option no principals" failure "" \
+    authorized_keys ',principals="mekmitasdigoat"'
+
 # Wrong certificate
+cat $OBJ/sshd_proxy_bak > $OBJ/sshd_proxy
 for ktype in rsa dsa rsa_v00 dsa_v00 ; do 
         case $ktype in
         *_v00) args="-t v00" ;;
@@ -185,4 +291,5 @@ for ktype in rsa dsa rsa_v00 dsa_v00 ; do
 done
 
 rm -f $OBJ/authorized_keys_$USER $OBJ/user_ca_key* $OBJ/cert_user_key*
+rm -f $OBJ/authorized_principals_$USER