mgmtd: fix printing an empty data tree

We don't need to create an actual tree to print an empty tree, libyang
handles NULL just fine. The actual problem is that `yang_dnode_new`
creates a tree by validating it, and the validation creates all implicit
default nodes. Therefore, when called with "with-default" flags, instead
of getting an empty tree, we get a tree with all top-level default set.

Signed-off-by: Igor Ryzhov <iryzhov@nfware.com>
This commit is contained in:
Igor Ryzhov 2024-01-28 02:35:14 +02:00
parent e13c590abe
commit dda5de0340

View File

@ -1086,7 +1086,6 @@ static int fe_adapter_send_tree_data(struct mgmt_fe_session_ctx *session,
{
struct mgmt_msg_tree_data *msg;
struct lyd_node *empty = NULL;
uint8_t **darrp = NULL;
int ret = 0;
@ -1098,11 +1097,6 @@ static int fe_adapter_send_tree_data(struct mgmt_fe_session_ctx *session,
msg->partial_error = partial_error;
msg->result_type = result_type;
if (!tree) {
empty = yang_dnode_new(ly_native_ctx, false);
tree = empty;
}
darrp = mgmt_msg_native_get_darrp(msg);
ret = yang_print_tree_append(darrp, tree, result_type,
(wd_options | LYD_PRINT_WITHSIBLINGS));
@ -1125,8 +1119,6 @@ static int fe_adapter_send_tree_data(struct mgmt_fe_session_ctx *session,
mgmt_msg_native_get_msg_len(msg),
short_circuit_ok);
done:
if (empty)
yang_dnode_free(empty);
mgmt_msg_native_free_msg(msg);
return ret;