1 files changed, 107 insertions, 0 deletions
diff --git a/src/validation.h b/src/validation.h
new file mode 100644
index 0000000..c9f5da0
--- /dev/null
+++ b/src/validation.h
@@ -0,0 +1,107 @@
+/**
+ * @file validation.h
+ * @author Michal Vasko <mvasko@cesnet.cz>
+ * @brief Validation routines.
+ *
+ * Copyright (c) 2019 - 2022 CESNET, z.s.p.o.
+ *
+ * This source code is licensed under BSD 3-Clause License (the "License").
+ * You may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://opensource.org/licenses/BSD-3-Clause
+ */
+
+#ifndef LY_VALIDATION_H_
+#define LY_VALIDATION_H_
+
+#include <stdint.h>
+
+#include "diff.h"
+#include "log.h"
+#include "parser_data.h"
+
+struct ly_ctx;
+struct ly_set;
+struct lyd_node;
+struct lys_module;
+struct lysc_node;
+
+/**
+ * @brief Add new changes into a diff. They are always merged.
+ *
+ * @param[in] node Node/subtree to add.
+ * @param[in] op Operation of the change.
+ * @param[in,out] diff Diff to update.
+ * @return LY_ERR value.
+ */
+LY_ERR lyd_val_diff_add(const struct lyd_node *node, enum lyd_diff_op op, struct lyd_node **diff);
+
+/**
+ * @brief Finish validation of nodes and attributes. Specifically, when (is processed first) and type validation.
+ *
+ * !! It is assumed autodeleted nodes cannot be in the unresolved node type set !!
+ *
+ * @param[in,out] tree Data tree, is updated if some nodes are autodeleted.
+ * @param[in] mod Module of the @p tree to take into consideration when deleting @p tree and moving it.
+ * If set, it is expected @p tree should point to the first node of @p mod. Otherwise it will simply be
+ * the first top-level sibling.
+ * @param[in] data_type Validate data type.
+ * @param[in] node_when Set with nodes with "when" conditions, can be NULL.
+ * @param[in] when_xp_opts Additional XPath options to use for evaluating "when".
+ * @param[in] node_types Set with nodes with unresolved types, can be NULL
+ * @param[in] meta_types Set with metadata with unresolved types, can be NULL.
+ * @param[in] ext_node Set with nodes with extensions to validate, can be NULL.
+ * @param[in] ext_val Set with extension data to validate, can be NULL.
+ * @param[in] val_opts Validation options, see @ref datavalidationoptions.
+ * @param[in,out] diff Validation diff.
+ * @return LY_ERR value.
+ */
+LY_ERR lyd_validate_unres(struct lyd_node **tree, const struct lys_module *mod, enum lyd_type data_type,
+        struct ly_set *node_when, uint32_t when_xp_opts, struct ly_set *node_types, struct ly_set *meta_types,
+        struct ly_set *ext_node, struct ly_set *ext_val, uint32_t val_opts, struct lyd_node **diff);
+
+/**
+ * @brief Validate new siblings. Specifically, check duplicated instances, autodelete default values and cases.
+ *
+ * !! It is assumed autodeleted nodes cannot yet be in the unresolved node type set !!
+ *
+ * @param[in,out] first First sibling.
+ * @param[in] sparent Schema parent of the siblings, NULL for top-level siblings.
+ * @param[in] mod Module of the siblings, NULL for nested siblings.
+ * @param[in,out] diff Validation diff.
+ * @return LY_ERR value.
+ */
+LY_ERR lyd_validate_new(struct lyd_node **first, const struct lysc_node *sparent, const struct lys_module *mod,
+        struct lyd_node **diff);
+
+/**
+ * @brief Validate data node with an extension instance, if any, by storing it in its unres set.
+ *
+ * @param[in] node Node to check for an extension instance with a node callback.
+ * @param[in,out] ext_node Set with data nodes to validate.
+ * @return LY_ERR value.
+ */
+LY_ERR lyd_validate_node_ext(struct lyd_node *node, struct ly_set *ext_node);
+
+/**
+ * @brief Validate a data tree.
+ *
+ * @param[in,out] tree Data tree to validate, nodes may be autodeleted.
+ * @param[in] module Module whose data (and schema restrictions) to validate, NULL for all modules.
+ * @param[in] ctx libyang context.
+ * @param[in] val_opts Validation options, see @ref datavalidationoptions.
+ * @param[in] validate_subtree Whether subtree was already validated (as part of data parsing) or not (separate validation).
+ * @param[in] node_when_p Set of nodes with when conditions, if NULL a local set is used.
+ * @param[in] node_types_p Set of unres node types, if NULL a local set is used.
+ * @param[in] meta_types_p Set of unres metadata types, if NULL a local set is used.
+ * @param[in] ext_node_p Set of unres nodes with extensions to validate, if NULL a local set is used.
+ * @param[in] ext_val_p Set of unres extension data to validate, if NULL a local set is used.
+ * @param[out] diff Generated validation diff, not generated if NULL.
+ * @return LY_ERR value.
+ */
+LY_ERR lyd_validate(struct lyd_node **tree, const struct lys_module *module, const struct ly_ctx *ctx, uint32_t val_opts,
+        ly_bool validate_subtree, struct ly_set *node_when_p, struct ly_set *node_types_p, struct ly_set *meta_types_p,
+        struct ly_set *ext_node_p, struct ly_set *ext_val_p, struct lyd_node **diff);
+
+#endif /* LY_VALIDATION_H_ */