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-rw-r--r--source4/dsdb/samdb/cracknames.c8
-rw-r--r--source4/torture/drs/python/cracknames.py38
2 files changed, 45 insertions, 1 deletions
diff --git a/source4/dsdb/samdb/cracknames.c b/source4/dsdb/samdb/cracknames.c
index d43f510b949..3b215ac0ec9 100644
--- a/source4/dsdb/samdb/cracknames.c
+++ b/source4/dsdb/samdb/cracknames.c
@@ -1253,7 +1253,13 @@ static WERROR DsCrackNameOneFilter(struct ldb_context *sam_ctx, TALLOC_CTX *mem_
return WERR_OK;
}
case DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL: {
- if (result->elements[0].num_values > 1) {
+ struct ldb_message_element *el
+ = ldb_msg_find_element(result,
+ "servicePrincipalName");
+ if (el == NULL) {
+ info1->status = DRSUAPI_DS_NAME_STATUS_NOT_FOUND;
+ return WERR_OK;
+ } else if (el->num_values > 1) {
info1->status = DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE;
return WERR_OK;
}
diff --git a/source4/torture/drs/python/cracknames.py b/source4/torture/drs/python/cracknames.py
index d8c8ae53d60..9bf90f9c997 100644
--- a/source4/torture/drs/python/cracknames.py
+++ b/source4/torture/drs/python/cracknames.py
@@ -149,6 +149,44 @@ class DrsCracknamesTestCase(drs_base.DrsBaseTestCase):
self.ldb_dc1.delete(user)
+ def test_NoSPNAttribute(self):
+ """
+ Verifies that, if we try and cracknames with the desired output
+ being an SPN, it returns
+ DRSUAPI_DS_NAME_STATUS_NOT_UNIQUE.
+ """
+ username = "Cracknames_no_SPN"
+ user = "cn=%s,%s" % (username, self.ou)
+
+ user_record = {
+ "dn": user,
+ "objectclass": "user",
+ "sAMAccountName" : username,
+ "userPrincipalName" : "test4@test.com",
+ "displayName" : "test4"}
+
+ self.ldb_dc1.add(user_record)
+
+ (result, ctr) = self._do_cracknames(user,
+ drsuapi.DRSUAPI_DS_NAME_FORMAT_FQDN_1779,
+ drsuapi.DRSUAPI_DS_NAME_FORMAT_GUID)
+
+ self.assertEquals(ctr.count, 1)
+ self.assertEquals(ctr.array[0].status,
+ drsuapi.DRSUAPI_DS_NAME_STATUS_OK)
+
+ user_guid = ctr.array[0].result_name
+
+ (result, ctr) = self._do_cracknames(user_guid,
+ drsuapi.DRSUAPI_DS_NAME_FORMAT_GUID,
+ drsuapi.DRSUAPI_DS_NAME_FORMAT_SERVICE_PRINCIPAL)
+
+ self.assertEquals(ctr.count, 1)
+ self.assertEquals(ctr.array[0].status,
+ drsuapi.DRSUAPI_DS_NAME_STATUS_NOT_FOUND)
+
+ self.ldb_dc1.delete(user)
+
def _do_cracknames(self, name, format_offered, format_desired):
req = drsuapi.DsNameRequest1()
names = drsuapi.DsNameString()