/*
match a simple leaf node
*/
static int ldb_match_equality(struct ldb_context *ldb,
const struct ldb_message *msg,
const struct ldb_parse_tree *tree,
enum ldb_scope scope,
bool *matched)
{
unsigned int i;
struct ldb_message_element *el;
const struct ldb_schema_attribute *a;
struct ldb_dn *valuedn;
int ret;
if (ldb_attr_dn(tree->u.equality.attr) == 0) {
valuedn = ldb_dn_from_ldb_val(ldb, ldb, &tree->u.equality.value);
if (valuedn == NULL) {
return LDB_ERR_INVALID_DN_SYNTAX;
}
ret = ldb_dn_compare(msg->dn, valuedn);
talloc_free(valuedn);
*matched = (ret == 0);
return LDB_SUCCESS;
}
/* TODO: handle the "*" case derived from an extended search
operation without the attibute type defined */
el = ldb_msg_find_element(msg, tree->u.equality.attr);
if (el == NULL) {
*matched = false;
return LDB_SUCCESS;
}
a = ldb_schema_attribute_by_name(ldb, el->name);
if (a == NULL) {
return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
}
for (i=0;i<el->num_values;i++) {
if (a->syntax->operator_fn) {
ret = a->syntax->operator_fn(ldb, LDB_OP_EQUALITY, a,
&tree->u.equality.value, &el->values[i], matched);
if (ret != LDB_SUCCESS) return ret;
if (*matched) return LDB_SUCCESS;
} else {
if (a->syntax->comparison_fn(ldb, ldb, &tree->u.equality.value,
&el->values[i]) == 0) {
*matched = true;
return LDB_SUCCESS;
}
}
}
*matched = false;
return LDB_SUCCESS;
}
/*
return a list of dn's that might match a leaf indexed search
*/
static int ltdb_index_dn_leaf(struct ldb_module *module,
const struct ldb_parse_tree *tree,
const struct ldb_message *index_list,
struct dn_list *list)
{
if (ldb_attr_cmp(tree->u.equality.attr, LTDB_OBJECTCLASS) == 0) {
return ltdb_index_dn_objectclass(module, tree, index_list, list);
}
if (ldb_attr_dn(tree->u.equality.attr) == 0) {
list->dn = talloc_array(list, char *, 1);
if (list->dn == NULL) {
ldb_oom(module->ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
list->dn[0] = talloc_strdup(list->dn, (char *)tree->u.equality.value.data);
if (list->dn[0] == NULL) {
ldb_oom(module->ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
list->count = 1;
return LDB_SUCCESS;
}
/*
match if node is present
*/
static int ldb_match_present(struct ldb_context *ldb,
const struct ldb_message *msg,
const struct ldb_parse_tree *tree,
enum ldb_scope scope, bool *matched)
{
const struct ldb_schema_attribute *a;
struct ldb_message_element *el;
if (ldb_attr_dn(tree->u.present.attr) == 0) {
*matched = true;
return LDB_SUCCESS;
}
el = ldb_msg_find_element(msg, tree->u.present.attr);
if (el == NULL) {
*matched = false;
return LDB_SUCCESS;
}
a = ldb_schema_attribute_by_name(ldb, el->name);
if (!a) {
return LDB_ERR_INVALID_ATTRIBUTE_SYNTAX;
}
if (a->syntax->operator_fn) {
unsigned int i;
for (i = 0; i < el->num_values; i++) {
int ret = a->syntax->operator_fn(ldb, LDB_OP_PRESENT, a, &el->values[i], NULL, matched);
if (ret != LDB_SUCCESS) return ret;
if (*matched) return LDB_SUCCESS;
}
*matched = false;
return LDB_SUCCESS;
}
*matched = true;
return LDB_SUCCESS;
}
