testprogs: Use random usernames for export keytab tests

This avoids that subsequent tests because users already exist and cleanup didn't
work.

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15308

Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 5595765d4e5918abe8d68423a8036f99675e64e7)

2 files changed, 11 insertions, 10 deletions

diff --git a/testprogs/blackbox/test_export_keytab_heimdal.sh b/testprogs/blackbox/test_export_keytab_heimdal.sh
index 7c0d92b7cc7..156c714b519 100755
--- a/testprogs/blackbox/test_export_keytab_heimdal.sh
+++ b/testprogs/blackbox/test_export_keytab_heimdal.sh
@@ -59,10 +59,11 @@ test_keytab()
 	return 0
 }
 
+TEST_USER="$(mktemp -u keytabtestuserXXXXXX)"
 USERPASS=testPaSS@01%
 unc="//$SERVER/tmp"
 
-testit "create user locally" $VALGRIND $PYTHON $newuser nettestuser $USERPASS "$@" || failed=$(expr $failed + 1)
+testit "create user locally" $VALGRIND $PYTHON $newuser ${TEST_USER} $USERPASS "$@" || failed=$(expr $failed + 1)
 
 testit "dump keytab from domain" $VALGRIND $PYTHON $samba_tool domain exportkeytab $PREFIX/tmpkeytab "$@" || failed=$(expr $failed + 1)
 test_keytab "read keytab from domain" "$PREFIX/tmpkeytab" "$SERVER\\\$" 3
@@ -76,11 +77,11 @@ testit "dump keytab from domain for cifs principal (2nd time)" $VALGRIND $PYTHON
 $samba_tool domain exportkeytab $PREFIX/tmpkeytab-server --principal=cifs/$SERVER_FQDN "$@" || failed=$(expr $failed + 1)
 test_keytab "read keytab from domain for cifs principal (2nd time)" "$PREFIX/tmpkeytab-server" "cifs/$SERVER_FQDN" 3
 
-testit "dump keytab from domain for user principal" $VALGRIND $PYTHON $samba_tool domain exportkeytab $PREFIX/tmpkeytab-2 --principal=nettestuser "$@" || failed=$(expr $failed + 1)
-test_keytab "dump keytab from domain for user principal" "$PREFIX/tmpkeytab-2" "nettestuser@$REALM" 3
+testit "dump keytab from domain for user principal" $VALGRIND $PYTHON $samba_tool domain exportkeytab $PREFIX/tmpkeytab-2 --principal=${TEST_USER} "$@" || failed=$(expr $failed + 1)
+test_keytab "dump keytab from domain for user principal" "$PREFIX/tmpkeytab-2" "${TEST_USER}@$REALM" 3
 testit "dump keytab from domain for user principal (2nd time)" $VALGRIND $PYTHON
-$samba_tool domain exportkeytab $PREFIX/tmpkeytab-2 --principal=nettestuser@$REALM "$@" || failed=$(expr $failed + 1)
-test_keytab "dump keytab from domain for user principal (2nd time)" "$PREFIX/tmpkeytab-2" "nettestuser@$REALM" 3
+$samba_tool domain exportkeytab $PREFIX/tmpkeytab-2 --principal=${TEST_USER}@$REALM "$@" || failed=$(expr $failed + 1)
+test_keytab "dump keytab from domain for user principal (2nd time)" "$PREFIX/tmpkeytab-2" "${TEST_USER}@$REALM" 3
 
 testit "dump keytab from domain for user principal with SPN as UPN" $VALGRIND
 $PYTHON $samba_tool domain exportkeytab $PREFIX/tmpkeytab-3 --principal=http/testupnspn.$DNSDOMAIN "$@" || failed=$(expr $failed + 1)
@@ -90,11 +91,11 @@ KRB5CCNAME="$PREFIX/tmpuserccache"
 samba4kinit="$samba4kinit_binary -c $KRB5CCNAME"
 export KRB5CCNAME
 
-testit "kinit with keytab as user" $VALGRIND $samba4kinit --keytab=$PREFIX/tmpkeytab --request-pac nettestuser@$REALM || failed=$(expr $failed + 1)
+testit "kinit with keytab as user" $VALGRIND $samba4kinit --keytab=$PREFIX/tmpkeytab --request-pac ${TEST_USER}@$REALM || failed=$(expr $failed + 1)
 
 test_smbclient "Test login with user kerberos ccache" 'ls' "$unc" --use-krb5-ccache=$KRB5CCNAME || failed=$(expr $failed + 1)
 
-testit "kinit with keytab as user (2)" $VALGRIND $samba4kinit --keytab=$PREFIX/tmpkeytab-2 --request-pac nettestuser@$REALM || failed=$(expr $failed + 1)
+testit "kinit with keytab as user (2)" $VALGRIND $samba4kinit --keytab=$PREFIX/tmpkeytab-2 --request-pac ${TEST_USER}@$REALM || failed=$(expr $failed + 1)
 
 test_smbclient "Test login with user kerberos ccache as user (2)" 'ls' "$unc" --use-krb5-ccache=$KRB5CCNAME || failed=$(expr $failed + 1)
 
@@ -113,7 +114,7 @@ KRB5CCNAME="$PREFIX/tmpadminccache"
 samba4kinit="$samba4kinit_binary -c $KRB5CCNAME"
 export KRB5CCNAME
 
-testit "del user" $VALGRIND $PYTHON $samba_tool user delete nettestuser -k yes "$@" || failed=$(expr $failed + 1)
+testit "del user" $VALGRIND $PYTHON $samba_tool user delete ${TEST_USER} -k yes "$@" || failed=$(expr $failed + 1)
 
 rm -f $PREFIX/tmpadminccache $PREFIX/tmpuserccache $PREFIX/tmpkeytab $PREFIX/tmpkeytab-2 $PREFIX/tmpkeytab-2 $PREFIX/tmpkeytab-server $PREFIX/tmpspnupnccache
 exit $failed
diff --git a/testprogs/blackbox/test_export_keytab_mit.sh b/testprogs/blackbox/test_export_keytab_mit.sh
index b800a17f962..541f800ed5c 100755
--- a/testprogs/blackbox/test_export_keytab_mit.sh
+++ b/testprogs/blackbox/test_export_keytab_mit.sh
@@ -76,7 +76,7 @@ test_keytab()
 	return 0
 }
 
-TEST_USER=nettestuser
+TEST_USER="$(mktemp -u keytabtestuserXXXXXX)"
 TEST_PASSWORD=testPaSS@01%
 
 EXPECTED_NKEYS=3
@@ -129,7 +129,7 @@ echo "$samba_kinit -k -t $PREFIX/tmpkeytab-server cifs/$SERVER_FQDN"
 testit "kinit with SPN from keytab" $VALGRIND $samba_kinit -k -t $PREFIX/tmpkeytab-server cifs/$SERVER_FQDN || failed=$(expr $failed + 1)
 
 # cleanup
-testit "delete user $TEST_USER" $VALGRIND $PYTHON $samba_tool user delete nettestuser --use-krb5-ccache="${KRB5CCNAME}" "$@" || failed=$(expr $failed + 1)
+testit "delete user $TEST_USER" $VALGRIND $PYTHON $samba_tool user delete "${TEST_USER}" --use-krb5-ccache="${KRB5CCNAME}" "$@" || failed=$(expr $failed + 1)
 
 $samba_kdestroy
 rm -f $PREFIX/tmpadminccache $PREFIX/tmpuserccache $PREFIX/tmpkeytab $PREFIX/tmpkeytab-2 $PREFIX/tmpkeytab-server