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-rw-r--r--src/parser_json.c1819
1 files changed, 1819 insertions, 0 deletions
diff --git a/src/parser_json.c b/src/parser_json.c
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index 0000000..6219c6e
--- /dev/null
+++ b/src/parser_json.c
@@ -0,0 +1,1819 @@
+/**
+ * @file parser_json.c
+ * @author Radek Krejci <rkrejci@cesnet.cz>
+ * @author Michal Vasko <mvasko@cesnet.cz>
+ * @brief JSON data parser for libyang
+ *
+ * Copyright (c) 2020 - 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
+ */
+
+#define _GNU_SOURCE
+
+#include <assert.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "common.h"
+#include "compat.h"
+#include "context.h"
+#include "dict.h"
+#include "in_internal.h"
+#include "json.h"
+#include "log.h"
+#include "parser_data.h"
+#include "parser_internal.h"
+#include "plugins_exts.h"
+#include "set.h"
+#include "tree.h"
+#include "tree_data.h"
+#include "tree_data_internal.h"
+#include "tree_schema.h"
+#include "tree_schema_internal.h"
+#include "validation.h"
+
+/**
+ * @brief Free the JSON data parser context.
+ *
+ * JSON implementation of lyd_ctx_free_clb().
+ */
+static void
+lyd_json_ctx_free(struct lyd_ctx *lydctx)
+{
+ struct lyd_json_ctx *ctx = (struct lyd_json_ctx *)lydctx;
+
+ if (lydctx) {
+ lyd_ctx_free(lydctx);
+ lyjson_ctx_free(ctx->jsonctx);
+ free(ctx);
+ }
+}
+
+/**
+ * @brief Pass the responsibility for releasing the dynamic values to @p dst.
+ *
+ * @param[in] jsonctx JSON context which contains the dynamic value.
+ * @param[in,out] dst Pointer to which the responsibility will be submited.
+ * If the pointer is already pointing to some allocated memory, it is released beforehand.
+ */
+static void
+lyjson_ctx_give_dynamic_value(struct lyjson_ctx *jsonctx, char **dst)
+{
+ assert(jsonctx && dst);
+
+ if (!jsonctx->dynamic) {
+ return;
+ }
+
+ if (dst) {
+ free(*dst);
+ }
+ *dst = NULL;
+
+ /* give the dynamic value */
+ *dst = (char *)jsonctx->value;
+
+ /* responsibility for the release is now passed to dst */
+ jsonctx->dynamic = 0;
+}
+
+/**
+ * @brief Parse JSON member-name as [\@][prefix:][name]
+ *
+ * \@ - metadata flag, maps to 1 in @p is_meta_p
+ * prefix - name of the module of the data node
+ * name - name of the data node
+ *
+ * All the output parameter are mandatory. Function only parse the member-name, all the appropriate checks are up to the caller.
+ *
+ * @param[in] value String to parse
+ * @param[in] value_len Length of the @p str.
+ * @param[out] name_p Pointer to the beginning of the parsed name.
+ * @param[out] name_len_p Pointer to the length of the parsed name.
+ * @param[out] prefix_p Pointer to the beginning of the parsed prefix. If the member-name does not contain prefix, result is NULL.
+ * @param[out] prefix_len_p Pointer to the length of the parsed prefix. If the member-name does not contain prefix, result is 0.
+ * @param[out] is_meta_p Pointer to the metadata flag, set to 1 if the member-name contains \@, 0 otherwise.
+ */
+static void
+lydjson_parse_name(const char *value, size_t value_len, const char **name_p, size_t *name_len_p, const char **prefix_p,
+ size_t *prefix_len_p, ly_bool *is_meta_p)
+{
+ const char *name, *prefix = NULL;
+ size_t name_len, prefix_len = 0;
+ ly_bool is_meta = 0;
+
+ name = memchr(value, ':', value_len);
+ if (name != NULL) {
+ prefix = value;
+ if (*prefix == '@') {
+ is_meta = 1;
+ prefix++;
+ }
+ prefix_len = name - prefix;
+ name++;
+ name_len = value_len - (prefix_len + 1) - is_meta;
+ } else {
+ name = value;
+ if (name[0] == '@') {
+ is_meta = 1;
+ name++;
+ }
+ name_len = value_len - is_meta;
+ }
+
+ *name_p = name;
+ *name_len_p = name_len;
+ *prefix_p = prefix;
+ *prefix_len_p = prefix_len;
+ *is_meta_p = is_meta;
+}
+
+/**
+ * @brief Get correct prefix (module_name) inside the @p node.
+ *
+ * @param[in] node Data node to get inherited prefix.
+ * @param[in] local_prefix Local prefix to replace the inherited prefix.
+ * @param[in] local_prefix_len Length of the @p local_prefix string. In case of 0, the inherited prefix is taken.
+ * @param[out] prefix_p Pointer to the resulting prefix string, Note that the result can be NULL in case of no local prefix
+ * and no context @p node to get inherited prefix.
+ * @param[out] prefix_len_p Pointer to the length of the resulting @p prefix_p string. Note that the result can be 0 in case
+ * of no local prefix and no context @p node to get inherited prefix.
+ * @return LY_ERR value.
+ */
+static LY_ERR
+lydjson_get_node_prefix(struct lyd_node *node, const char *local_prefix, size_t local_prefix_len, const char **prefix_p,
+ size_t *prefix_len_p)
+{
+ struct lyd_node_opaq *onode;
+ const char *module_name = NULL;
+
+ assert(prefix_p && prefix_len_p);
+
+ if (local_prefix_len) {
+ *prefix_p = local_prefix;
+ *prefix_len_p = local_prefix_len;
+ return LY_SUCCESS;
+ }
+
+ *prefix_p = NULL;
+ while (node) {
+ if (node->schema) {
+ *prefix_p = node->schema->module->name;
+ break;
+ }
+ onode = (struct lyd_node_opaq *)node;
+ if (onode->name.module_name) {
+ *prefix_p = onode->name.module_name;
+ break;
+ } else if (onode->name.prefix) {
+ *prefix_p = onode->name.prefix;
+ break;
+ }
+ node = lyd_parent(node);
+ }
+ *prefix_len_p = ly_strlen(module_name);
+
+ return LY_SUCCESS;
+}
+
+/**
+ * @brief Skip the current JSON object/array.
+ *
+ * @param[in] jsonctx JSON context with the input data to skip.
+ * @return LY_ERR value.
+ */
+static LY_ERR
+lydjson_data_skip(struct lyjson_ctx *jsonctx)
+{
+ enum LYJSON_PARSER_STATUS status, current;
+ uint32_t orig_depth;
+
+ status = lyjson_ctx_status(jsonctx, 0);
+ assert((status == LYJSON_OBJECT) || (status == LYJSON_ARRAY));
+ orig_depth = jsonctx->depth;
+
+ /* next */
+ LY_CHECK_RET(lyjson_ctx_next(jsonctx, &current));
+
+ if ((status == LYJSON_OBJECT) && (current != LYJSON_OBJECT) && (current != LYJSON_ARRAY)) {
+ /* no nested objects */
+ LY_CHECK_RET(lyjson_ctx_next(jsonctx, NULL));
+ return LY_SUCCESS;
+ }
+
+ /* skip after the content */
+ while ((jsonctx->depth > orig_depth) || (current != status + 1)) {
+ if (current == LYJSON_ARRAY) {
+ /* skip the array separately */
+ LY_CHECK_RET(lydjson_data_skip(jsonctx));
+ current = lyjson_ctx_status(jsonctx, 0);
+ } else {
+ LY_CHECK_RET(lyjson_ctx_next(jsonctx, &current));
+ }
+
+ if (current == LYJSON_END) {
+ break;
+ }
+ }
+
+ return LY_SUCCESS;
+}
+
+/**
+ * @brief Get schema node corresponding to the input parameters.
+ *
+ * @param[in] lydctx JSON data parser context.
+ * @param[in] is_attr Flag if the reference to the node is an attribute, for logging only.
+ * @param[in] prefix Requested node's prefix (module name).
+ * @param[in] prefix_len Length of the @p prefix.
+ * @param[in] name Requested node's name.
+ * @param[in] name_len Length of the @p name.
+ * @param[in] parent Parent of the node being processed, can be NULL in case of top-level.
+ * @param[out] snode Found schema node corresponding to the input parameters. If NULL, parse as an opaque node.
+ * @param[out] ext Extension instance that provided @p snode, if any.
+ * @return LY_SUCCES on success.
+ * @return LY_ENOT if the whole object was parsed (skipped or as an extension).
+ * @return LY_ERR on error.
+ */
+static LY_ERR
+lydjson_get_snode(struct lyd_json_ctx *lydctx, ly_bool is_attr, const char *prefix, size_t prefix_len, const char *name,
+ size_t name_len, struct lyd_node *parent, const struct lysc_node **snode, struct lysc_ext_instance **ext)
+{
+ LY_ERR ret = LY_SUCCESS, r;
+ struct lys_module *mod = NULL;
+ uint32_t getnext_opts = lydctx->int_opts & LYD_INTOPT_REPLY ? LYS_GETNEXT_OUTPUT : 0;
+
+ *snode = NULL;
+ *ext = NULL;
+
+ /* get the element module, prefer parent context because of extensions */
+ if (prefix_len) {
+ mod = ly_ctx_get_module_implemented2(parent ? LYD_CTX(parent) : lydctx->jsonctx->ctx, prefix, prefix_len);
+ } else if (parent) {
+ if (parent->schema) {
+ mod = parent->schema->module;
+ }
+ } else if (!(lydctx->int_opts & LYD_INTOPT_ANY)) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX_JSON, "Top-level JSON object member \"%.*s\" must be namespace-qualified.",
+ (int)(is_attr ? name_len + 1 : name_len), is_attr ? name - 1 : name);
+ ret = LY_EVALID;
+ goto cleanup;
+ }
+ if (!mod) {
+ /* check for extension data */
+ r = ly_nested_ext_schema(parent, NULL, prefix, prefix_len, LY_VALUE_JSON, NULL, name, name_len, snode, ext);
+ if (r != LY_ENOT) {
+ /* success or error */
+ ret = r;
+ goto cleanup;
+ }
+
+ /* unknown module */
+ if (lydctx->parse_opts & LYD_PARSE_STRICT) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "No module named \"%.*s\" in the context.", (int)prefix_len, prefix);
+ ret = LY_EVALID;
+ goto cleanup;
+ }
+ if (!(lydctx->parse_opts & LYD_PARSE_OPAQ)) {
+ /* skip element with children */
+ ret = lydjson_data_skip(lydctx->jsonctx);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ ret = LY_ENOT;
+ goto cleanup;
+ }
+ }
+
+ /* get the schema node */
+ if (mod && (!parent || parent->schema)) {
+ if (!parent && lydctx->ext) {
+ *snode = lysc_ext_find_node(lydctx->ext, mod, name, name_len, 0, getnext_opts);
+ } else {
+ *snode = lys_find_child(parent ? parent->schema : NULL, mod, name, name_len, 0, getnext_opts);
+ }
+ if (!*snode) {
+ /* check for extension data */
+ r = ly_nested_ext_schema(parent, NULL, prefix, prefix_len, LY_VALUE_JSON, NULL, name, name_len, snode, ext);
+ if (r != LY_ENOT) {
+ /* success or error */
+ ret = r;
+ goto cleanup;
+ }
+
+ /* unknown data node */
+ if (lydctx->parse_opts & LYD_PARSE_STRICT) {
+ if (parent) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Node \"%.*s\" not found as a child of \"%s\" node.",
+ (int)name_len, name, LYD_NAME(parent));
+ } else if (lydctx->ext) {
+ if (lydctx->ext->argument) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE,
+ "Node \"%.*s\" not found in the \"%s\" %s extension instance.",
+ (int)name_len, name, lydctx->ext->argument, lydctx->ext->def->name);
+ } else {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Node \"%.*s\" not found in the %s extension instance.",
+ (int)name_len, name, lydctx->ext->def->name);
+ }
+ } else {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Node \"%.*s\" not found in the \"%s\" module.",
+ (int)name_len, name, mod->name);
+ }
+ ret = LY_EVALID;
+ goto cleanup;
+ } else if (!(lydctx->parse_opts & LYD_PARSE_OPAQ)) {
+ /* skip element with children */
+ ret = lydjson_data_skip(lydctx->jsonctx);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ ret = LY_ENOT;
+ goto cleanup;
+ }
+ } else {
+ /* check that schema node is valid and can be used */
+ ret = lyd_parser_check_schema((struct lyd_ctx *)lydctx, *snode);
+ }
+ }
+
+cleanup:
+ return ret;
+}
+
+/**
+ * @brief Check that the input data are parseable as the @p list.
+ *
+ * Checks for all the list's keys. Function does not revert the context state.
+ *
+ * @param[in] jsonctx JSON parser context.
+ * @param[in] list List schema node corresponding to the input data object.
+ * @return LY_SUCCESS in case the data are ok for the @p list
+ * @return LY_ENOT in case the input data are not sufficient to fully parse the list instance.
+ */
+static LY_ERR
+lydjson_check_list(struct lyjson_ctx *jsonctx, const struct lysc_node *list)
+{
+ LY_ERR ret = LY_SUCCESS;
+ enum LYJSON_PARSER_STATUS status = lyjson_ctx_status(jsonctx, 0);
+ struct ly_set key_set = {0};
+ const struct lysc_node *snode;
+ uint32_t i, status_count;
+
+ assert(list && (list->nodetype == LYS_LIST));
+
+ /* get all keys into a set (keys do not have if-features or anything) */
+ snode = NULL;
+ while ((snode = lys_getnext(snode, list, NULL, 0)) && (snode->flags & LYS_KEY)) {
+ ret = ly_set_add(&key_set, (void *)snode, 1, NULL);
+ LY_CHECK_GOTO(ret, cleanup);
+ }
+
+ if (status == LYJSON_OBJECT) {
+ status_count = jsonctx->status.count;
+
+ while (key_set.count && (status != LYJSON_OBJECT_CLOSED)) {
+ const char *name, *prefix;
+ size_t name_len, prefix_len;
+ ly_bool is_attr;
+
+ /* match the key */
+ snode = NULL;
+ lydjson_parse_name(jsonctx->value, jsonctx->value_len, &name, &name_len, &prefix, &prefix_len, &is_attr);
+
+ if (!is_attr && !prefix) {
+ for (i = 0; i < key_set.count; ++i) {
+ snode = (const struct lysc_node *)key_set.objs[i];
+ if (!ly_strncmp(snode->name, name, name_len)) {
+ break;
+ }
+ }
+ /* go into the item to a) process it as a key or b) start skipping it as another list child */
+ ret = lyjson_ctx_next(jsonctx, &status);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ if (snode) {
+ /* we have the key, validate the value */
+ if (status < LYJSON_NUMBER) {
+ /* not a terminal */
+ ret = LY_ENOT;
+ goto cleanup;
+ }
+
+ ret = lys_value_validate(NULL, snode, jsonctx->value, jsonctx->value_len, LY_VALUE_JSON, NULL);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ /* key with a valid value, remove from the set */
+ ly_set_rm_index(&key_set, i, NULL);
+ }
+ } else {
+ /* start skipping the member we are not interested in */
+ ret = lyjson_ctx_next(jsonctx, &status);
+ LY_CHECK_GOTO(ret, cleanup);
+ }
+ /* move to the next child */
+ while (status_count < jsonctx->status.count) {
+ ret = lyjson_ctx_next(jsonctx, &status);
+ LY_CHECK_GOTO(ret, cleanup);
+ }
+ }
+ }
+
+ if (key_set.count) {
+ /* some keys are missing/did not validate */
+ ret = LY_ENOT;
+ }
+
+cleanup:
+ ly_set_erase(&key_set, NULL);
+ return ret;
+}
+
+/**
+ * @brief Get the hint for the data type parsers according to the current JSON parser context.
+ *
+ * @param[in] lydctx JSON data parser context. The context is supposed to be on a value.
+ * @param[in,out] status Pointer to the current context status,
+ * in some circumstances the function manipulates with the context so the status is updated.
+ * @param[out] type_hint_p Pointer to the variable to store the result.
+ * @return LY_SUCCESS in case of success.
+ * @return LY_EINVAL in case of invalid context status not referring to a value.
+ */
+static LY_ERR
+lydjson_value_type_hint(struct lyd_json_ctx *lydctx, enum LYJSON_PARSER_STATUS *status_p, uint32_t *type_hint_p)
+{
+ *type_hint_p = 0;
+
+ if (*status_p == LYJSON_ARRAY) {
+ /* only [null] */
+ LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status_p));
+ if (*status_p != LYJSON_NULL) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX_JSON,
+ "Expected JSON name/value or special name/[null], but input data contains name/[%s].",
+ lyjson_token2str(*status_p));
+ return LY_EINVAL;
+ }
+
+ LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, NULL));
+ if (lyjson_ctx_status(lydctx->jsonctx, 0) != LYJSON_ARRAY_CLOSED) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX_JSON, "Expected array end, but input data contains %s.",
+ lyjson_token2str(*status_p));
+ return LY_EINVAL;
+ }
+
+ *type_hint_p = LYD_VALHINT_EMPTY;
+ } else if (*status_p == LYJSON_STRING) {
+ *type_hint_p = LYD_VALHINT_STRING | LYD_VALHINT_NUM64;
+ } else if (*status_p == LYJSON_NUMBER) {
+ *type_hint_p = LYD_VALHINT_DECNUM;
+ } else if ((*status_p == LYJSON_FALSE) || (*status_p == LYJSON_TRUE)) {
+ *type_hint_p = LYD_VALHINT_BOOLEAN;
+ } else if (*status_p == LYJSON_NULL) {
+ *type_hint_p = 0;
+ } else {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX_JSON, "Unexpected input data %s.", lyjson_token2str(*status_p));
+ return LY_EINVAL;
+ }
+
+ return LY_SUCCESS;
+}
+
+/**
+ * @brief Check in advance if the input data are parsable according to the provided @p snode.
+ *
+ * Note that the checks are done only in case the LYD_PARSE_OPAQ is allowed. Otherwise the same checking
+ * is naturally done when the data are really parsed.
+ *
+ * @param[in] lydctx JSON data parser context. When the function returns, the context is in the same state
+ * as before calling, despite it is necessary to process input data for checking.
+ * @param[in] snode Schema node corresponding to the member currently being processed in the context.
+ * @param[out] type_hint_p Pointer to a variable to store detected value type hint in case of leaf or leaf-list.
+ * @return LY_SUCCESS in case the data are ok for the @p snode or the LYD_PARSE_OPAQ is not enabled.
+ * @return LY_ENOT in case the input data are not sufficient to fully parse the list instance
+ * @return LY_EINVAL in case of invalid leaf JSON encoding
+ * and they are expected to be parsed as opaq nodes.
+ */
+static LY_ERR
+lydjson_data_check_opaq(struct lyd_json_ctx *lydctx, const struct lysc_node *snode, uint32_t *type_hint_p)
+{
+ LY_ERR ret = LY_SUCCESS;
+ struct lyjson_ctx *jsonctx = lydctx->jsonctx;
+ enum LYJSON_PARSER_STATUS status;
+
+ assert(snode);
+
+ if (!(snode->nodetype & (LYD_NODE_TERM | LYS_LIST))) {
+ /* can always be parsed as a data node if we have the schema node */
+ return LY_SUCCESS;
+ }
+
+ /* backup parser */
+ lyjson_ctx_backup(jsonctx);
+ status = lyjson_ctx_status(jsonctx, 0);
+
+ if (lydctx->parse_opts & LYD_PARSE_OPAQ) {
+ /* check if the node is parseable. if not, NULL the snode to announce that it is supposed to be parsed
+ * as an opaq node */
+ switch (snode->nodetype) {
+ case LYS_LEAFLIST:
+ case LYS_LEAF:
+ /* value may not be valid in which case we parse it as an opaque node */
+ ret = lydjson_value_type_hint(lydctx, &status, type_hint_p);
+ if (ret) {
+ break;
+ }
+
+ if (lys_value_validate(NULL, snode, jsonctx->value, jsonctx->value_len, LY_VALUE_JSON, NULL)) {
+ ret = LY_ENOT;
+ }
+ break;
+ case LYS_LIST:
+ /* lists may not have all its keys */
+ if (lydjson_check_list(jsonctx, snode)) {
+ /* invalid list, parse as opaque if it misses/has invalid some keys */
+ ret = LY_ENOT;
+ }
+ break;
+ }
+ } else if (snode->nodetype & LYD_NODE_TERM) {
+ status = lyjson_ctx_status(jsonctx, 0);
+ ret = lydjson_value_type_hint(lydctx, &status, type_hint_p);
+ }
+
+ /* restore parser */
+ lyjson_ctx_restore(jsonctx);
+
+ return ret;
+}
+
+/**
+ * @brief Join the forward-referencing metadata with their target data nodes.
+ *
+ * Note that JSON encoding for YANG data allows forward-referencing metadata only for leafs/leaf-lists.
+ *
+ * @param[in] lydctx JSON data parser context.
+ * @param[in,out] first_p Pointer to the first sibling node variable (top-level or in a particular parent node)
+ * as a starting point to search for the metadata's target data node
+ * @return LY_SUCCESS on success
+ * @return LY_EVALID in case there are some metadata with unresolved target data node instance
+ */
+static LY_ERR
+lydjson_metadata_finish(struct lyd_json_ctx *lydctx, struct lyd_node **first_p)
+{
+ LY_ERR ret = LY_SUCCESS;
+ struct lyd_node *node, *attr, *next, *meta_iter;
+ struct lysc_ext_instance *ext;
+ uint64_t instance = 0;
+ const char *prev = NULL;
+ uint32_t log_location_items = 0;
+
+ /* finish linking metadata */
+ LY_LIST_FOR_SAFE(*first_p, next, attr) {
+ struct lyd_node_opaq *meta_container = (struct lyd_node_opaq *)attr;
+ uint64_t match = 0;
+ ly_bool is_attr;
+ const char *name, *prefix;
+ size_t name_len, prefix_len;
+ const struct lysc_node *snode;
+
+ if (attr->schema || (meta_container->name.name[0] != '@')) {
+ /* not an opaq metadata node */
+ continue;
+ }
+
+ LOG_LOCSET(NULL, attr, NULL, NULL);
+ log_location_items++;
+
+ if (prev != meta_container->name.name) {
+ /* metas' names are stored in dictionary, so checking pointers must works */
+ lydict_remove(lydctx->jsonctx->ctx, prev);
+ LY_CHECK_GOTO(ret = lydict_insert(lydctx->jsonctx->ctx, meta_container->name.name, 0, &prev), cleanup);
+ instance = 1;
+ } else {
+ instance++;
+ }
+
+ /* find the corresponding data node */
+ LY_LIST_FOR(*first_p, node) {
+ if (!node->schema) {
+ /* opaq node - we are going to put into it just a generic attribute. */
+ if (strcmp(&meta_container->name.name[1], ((struct lyd_node_opaq *)node)->name.name)) {
+ continue;
+ }
+
+ if (((struct lyd_node_opaq *)node)->hints & LYD_NODEHINT_LIST) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX, "Metadata container references a sibling list node %s.",
+ ((struct lyd_node_opaq *)node)->name.name);
+ ret = LY_EVALID;
+ goto cleanup;
+ }
+
+ /* match */
+ match++;
+ if (match != instance) {
+ continue;
+ }
+
+ LY_LIST_FOR(meta_container->child, meta_iter) {
+ /* convert opaq node to a attribute of the opaq node */
+ struct lyd_node_opaq *meta = (struct lyd_node_opaq *)meta_iter;
+
+ ret = lyd_create_attr(node, NULL, lydctx->jsonctx->ctx, meta->name.name, strlen(meta->name.name),
+ meta->name.prefix, ly_strlen(meta->name.prefix), meta->name.module_name,
+ ly_strlen(meta->name.module_name), meta->value, ly_strlen(meta->value), NULL, LY_VALUE_JSON,
+ NULL, meta->hints);
+ LY_CHECK_GOTO(ret, cleanup);
+ }
+
+ /* done */
+ break;
+ } else {
+ /* this is the second time we are resolving the schema node, so it must succeed,
+ * but remember that snode can be still NULL */
+ lydjson_parse_name(meta_container->name.name, strlen(meta_container->name.name), &name, &name_len,
+ &prefix, &prefix_len, &is_attr);
+ assert(is_attr);
+ lydjson_get_snode(lydctx, is_attr, prefix, prefix_len, name, name_len, lyd_parent(*first_p), &snode, &ext);
+
+ if (snode != node->schema) {
+ continue;
+ }
+
+ /* match */
+ match++;
+ if (match != instance) {
+ continue;
+ }
+
+ LY_LIST_FOR(meta_container->child, meta_iter) {
+ /* convert opaq node to a metadata of the node */
+ struct lyd_node_opaq *meta = (struct lyd_node_opaq *)meta_iter;
+ struct lys_module *mod = NULL;
+
+ mod = ly_ctx_get_module_implemented(lydctx->jsonctx->ctx, meta->name.prefix);
+ if (mod) {
+ ret = lyd_parser_create_meta((struct lyd_ctx *)lydctx, node, NULL, mod,
+ meta->name.name, strlen(meta->name.name), meta->value, ly_strlen(meta->value),
+ NULL, LY_VALUE_JSON, NULL, meta->hints, node->schema);
+ LY_CHECK_GOTO(ret, cleanup);
+ } else if (lydctx->parse_opts & LYD_PARSE_STRICT) {
+ if (meta->name.prefix) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE,
+ "Unknown (or not implemented) YANG module \"%s\" of metadata \"%s%s%s\".",
+ meta->name.prefix, meta->name.prefix, ly_strlen(meta->name.prefix) ? ":" : "",
+ meta->name.name);
+ } else {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Missing YANG module of metadata \"%s\".",
+ meta->name.name);
+ }
+ ret = LY_EVALID;
+ goto cleanup;
+ }
+ }
+
+ /* add/correct flags */
+ ret = lyd_parse_set_data_flags(node, &node->meta, (struct lyd_ctx *)lydctx, ext);
+ LY_CHECK_GOTO(ret, cleanup);
+ break;
+ }
+ }
+
+ if (match != instance) {
+ /* there is no corresponding data node for the metadata */
+ if (instance > 1) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE,
+ "Missing JSON data instance #%" PRIu64 " to be coupled with %s metadata.",
+ instance, meta_container->name.name);
+ } else {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Missing JSON data instance to be coupled with %s metadata.",
+ meta_container->name.name);
+ }
+ ret = LY_EVALID;
+ } else {
+ /* remove the opaq attr */
+ if (attr == (*first_p)) {
+ *first_p = attr->next;
+ }
+ lyd_free_tree(attr);
+ }
+
+ LOG_LOCBACK(0, log_location_items, 0, 0);
+ log_location_items = 0;
+ }
+
+cleanup:
+ lydict_remove(lydctx->jsonctx->ctx, prev);
+
+ LOG_LOCBACK(0, log_location_items, 0, 0);
+ return ret;
+}
+
+/**
+ * @brief Parse a metadata member.
+ *
+ * @param[in] lydctx JSON data parser context.
+ * @param[in] snode Schema node of the metadata parent.
+ * @param[in] node Parent node in case the metadata is not forward-referencing (only LYD_NODE_TERM)
+ * so the data node does not exists. In such a case the metadata is stored in the context for the later
+ * processing by lydjson_metadata_finish().
+ * @return LY_SUCCESS on success
+ * @return Various LY_ERR values in case of failure.
+ */
+static LY_ERR
+lydjson_metadata(struct lyd_json_ctx *lydctx, const struct lysc_node *snode, struct lyd_node *node)
+{
+ LY_ERR ret = LY_SUCCESS;
+ enum LYJSON_PARSER_STATUS status;
+ const char *expected;
+ ly_bool in_parent = 0;
+ const char *name, *prefix = NULL;
+ char *dynamic_prefname = NULL;
+ size_t name_len, prefix_len = 0;
+ struct lys_module *mod;
+ const struct ly_ctx *ctx = lydctx->jsonctx->ctx;
+ ly_bool is_attr = 0;
+ struct lyd_node *prev = node;
+ uint32_t instance = 0, val_hints;
+ uint16_t nodetype;
+
+ assert(snode || node);
+
+ nodetype = snode ? snode->nodetype : LYS_CONTAINER;
+ LOG_LOCSET(snode, NULL, NULL, NULL);
+
+ /* move to the second item in the name/X pair */
+ ret = lyjson_ctx_next(lydctx->jsonctx, &status);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ /* check attribute encoding */
+ switch (nodetype) {
+ case LYS_LEAFLIST:
+ expected = "@name/array of objects/nulls";
+
+ LY_CHECK_GOTO(status != LYJSON_ARRAY, representation_error);
+
+next_entry:
+ instance++;
+
+ /* move into array/next entry */
+ ret = lyjson_ctx_next(lydctx->jsonctx, &status);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ if (status == LYJSON_ARRAY_CLOSED) {
+ /* no more metadata */
+ goto cleanup;
+ }
+ LY_CHECK_GOTO((status != LYJSON_OBJECT) && (status != LYJSON_NULL), representation_error);
+
+ if (!node || (node->schema != prev->schema)) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Missing JSON data instance #%u of %s:%s to be coupled with metadata.",
+ instance, prev->schema->module->name, prev->schema->name);
+ ret = LY_EVALID;
+ goto cleanup;
+ }
+
+ if (status == LYJSON_NULL) {
+ /* continue with the next entry in the leaf-list array */
+ prev = node;
+ node = node->next;
+ goto next_entry;
+ }
+ break;
+ case LYS_LEAF:
+ case LYS_ANYXML:
+ expected = "@name/object";
+
+ LY_CHECK_GOTO(status != LYJSON_OBJECT, representation_error);
+ break;
+ case LYS_CONTAINER:
+ case LYS_LIST:
+ case LYS_ANYDATA:
+ case LYS_NOTIF:
+ case LYS_ACTION:
+ case LYS_RPC:
+ in_parent = 1;
+ expected = "@/object";
+ LY_CHECK_GOTO(status != LYJSON_OBJECT, representation_error);
+ break;
+ default:
+ LOGINT(ctx);
+ ret = LY_EINT;
+ goto cleanup;
+ }
+
+ /* process all the members inside a single metadata object */
+ assert(status == LYJSON_OBJECT);
+ while (status != LYJSON_OBJECT_CLOSED) {
+ LY_CHECK_GOTO(status != LYJSON_OBJECT, representation_error);
+
+ lydjson_parse_name(lydctx->jsonctx->value, lydctx->jsonctx->value_len, &name, &name_len, &prefix, &prefix_len, &is_attr);
+ lyjson_ctx_give_dynamic_value(lydctx->jsonctx, &dynamic_prefname);
+
+ if (!name_len) {
+ LOGVAL(ctx, LYVE_SYNTAX_JSON, "Metadata in JSON found with an empty name, followed by: %.10s", name);
+ ret = LY_EVALID;
+ goto cleanup;
+ } else if (!prefix_len) {
+ LOGVAL(ctx, LYVE_SYNTAX_JSON, "Metadata in JSON must be namespace-qualified, missing prefix for \"%.*s\".",
+ (int)lydctx->jsonctx->value_len, lydctx->jsonctx->value);
+ ret = LY_EVALID;
+ goto cleanup;
+ } else if (is_attr) {
+ LOGVAL(ctx, LYVE_SYNTAX_JSON, "Invalid format of the Metadata identifier in JSON, unexpected '@' in \"%.*s\"",
+ (int)lydctx->jsonctx->value_len, lydctx->jsonctx->value);
+ ret = LY_EVALID;
+ goto cleanup;
+ }
+
+ /* get the element module */
+ mod = ly_ctx_get_module_implemented2(ctx, prefix, prefix_len);
+ if (!mod) {
+ if (lydctx->parse_opts & LYD_PARSE_STRICT) {
+ LOGVAL(ctx, LYVE_REFERENCE, "Prefix \"%.*s\" of the metadata \"%.*s\" does not match any module in the context.",
+ (int)prefix_len, prefix, (int)name_len, name);
+ ret = LY_EVALID;
+ goto cleanup;
+ }
+ if (node->schema) {
+ /* skip element with children */
+ ret = lydjson_data_skip(lydctx->jsonctx);
+ LY_CHECK_GOTO(ret, cleanup);
+ status = lyjson_ctx_status(lydctx->jsonctx, 0);
+ /* end of the item */
+ continue;
+ }
+ assert(lydctx->parse_opts & LYD_PARSE_OPAQ);
+ }
+
+ /* get the value */
+ ret = lyjson_ctx_next(lydctx->jsonctx, &status);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ /* get value hints */
+ ret = lydjson_value_type_hint(lydctx, &status, &val_hints);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ if (node->schema) {
+ /* create metadata */
+ ret = lyd_parser_create_meta((struct lyd_ctx *)lydctx, node, NULL, mod, name, name_len, lydctx->jsonctx->value,
+ lydctx->jsonctx->value_len, &lydctx->jsonctx->dynamic, LY_VALUE_JSON, NULL, val_hints, node->schema);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ /* add/correct flags */
+ ret = lyd_parse_set_data_flags(node, &node->meta, (struct lyd_ctx *)lydctx, NULL);
+ LY_CHECK_GOTO(ret, cleanup);
+ } else {
+ /* create attribute */
+ const char *module_name;
+ size_t module_name_len;
+
+ lydjson_get_node_prefix(node, prefix, prefix_len, &module_name, &module_name_len);
+
+ /* attr2 is always changed to the created attribute */
+ ret = lyd_create_attr(node, NULL, lydctx->jsonctx->ctx, name, name_len, prefix, prefix_len, module_name,
+ module_name_len, lydctx->jsonctx->value, lydctx->jsonctx->value_len, &lydctx->jsonctx->dynamic,
+ LY_VALUE_JSON, NULL, val_hints);
+ LY_CHECK_GOTO(ret, cleanup);
+ }
+ /* next member */
+ ret = lyjson_ctx_next(lydctx->jsonctx, &status);
+ LY_CHECK_GOTO(ret, cleanup);
+ LY_CHECK_GOTO((status != LYJSON_OBJECT) && (status != LYJSON_OBJECT_CLOSED), representation_error);
+ }
+
+ if (nodetype == LYS_LEAFLIST) {
+ /* continue by processing another metadata object for the following
+ * leaf-list instance since they are always instantiated in JSON array */
+ prev = node;
+ node = node->next;
+ goto next_entry;
+ }
+
+ /* success */
+ goto cleanup;
+
+representation_error:
+ LOGVAL(ctx, LYVE_SYNTAX_JSON,
+ "The attribute(s) of %s \"%s\" is expected to be represented as JSON %s, but input data contains @%s/%s.",
+ lys_nodetype2str(nodetype), node ? LYD_NAME(node) : LYD_NAME(prev), expected, lyjson_token2str(status),
+ in_parent ? "" : "name");
+ ret = LY_EVALID;
+
+cleanup:
+ free(dynamic_prefname);
+ LOG_LOCBACK(1, 0, 0, 0);
+ return ret;
+}
+
+/**
+ * @brief Eat the node pointed by @p node_p by inserting it into @p parent and maintain the @p first_p pointing
+ * to the first child node.
+ *
+ * @param[in] parent Parent node to insert to, can be NULL in case of top-level (or provided first_p).
+ * @param[in,out] first_p Pointer to the first sibling node in case of top-level.
+ * @param[in,out] node_p pointer to the new node to insert, after the insert is done, pointer is set to NULL.
+ * @param[in] last If set, always insert at the end.
+ * @param[in] ext Extension instance of @p node_p, if any.
+ */
+static void
+lydjson_maintain_children(struct lyd_node *parent, struct lyd_node **first_p, struct lyd_node **node_p, ly_bool last,
+ struct lysc_ext_instance *ext)
+{
+ if (*node_p) {
+ /* insert, keep first pointer correct */
+ if (ext) {
+ lyplg_ext_insert(parent, *node_p);
+ } else {
+ lyd_insert_node(parent, first_p, *node_p, last);
+ }
+ if (first_p) {
+ if (parent) {
+ *first_p = lyd_child(parent);
+ } else {
+ while ((*first_p)->prev->next) {
+ *first_p = (*first_p)->prev;
+ }
+ }
+ }
+ *node_p = NULL;
+ }
+}
+
+/**
+ * @brief Wrapper for ::lyd_create_opaq().
+ *
+ * @param[in] lydctx JSON data parser context.
+ * @param[in] name Name of the opaq node to create.
+ * @param[in] name_len Length of the @p name string.
+ * @param[in] prefix Prefix of the opaq node to create.
+ * @param[in] prefix_len Length of the @p prefx string.
+ * @param[in] parent Data parent of the opaq node to create, can be NULL in case of top level,
+ * but must be set if @p first is not.
+ * @param[in,out] status_inner_p In case of processing JSON array, this parameter points to a standalone
+ * context status of the array content. Otherwise, it is supposed to be the same as @p status_p.
+ * @param[out] node_p Pointer to the created opaq node.
+ * @return LY_ERR value.
+ */
+static LY_ERR
+lydjson_create_opaq(struct lyd_json_ctx *lydctx, const char *name, size_t name_len, const char *prefix, size_t prefix_len,
+ struct lyd_node *parent, enum LYJSON_PARSER_STATUS *status_inner_p, struct lyd_node **node_p)
+{
+ LY_ERR ret = LY_SUCCESS;
+ const char *value = NULL, *module_name;
+ size_t value_len = 0, module_name_len = 0;
+ ly_bool dynamic = 0;
+ uint32_t type_hint = 0;
+
+ if ((*status_inner_p != LYJSON_OBJECT) && (*status_inner_p != LYJSON_OBJECT_EMPTY)) {
+ /* prepare for creating opaq node with a value */
+ value = lydctx->jsonctx->value;
+ value_len = lydctx->jsonctx->value_len;
+ dynamic = lydctx->jsonctx->dynamic;
+ lydctx->jsonctx->dynamic = 0;
+
+ LY_CHECK_RET(lydjson_value_type_hint(lydctx, status_inner_p, &type_hint));
+ }
+
+ /* create node */
+ lydjson_get_node_prefix(parent, prefix, prefix_len, &module_name, &module_name_len);
+ ret = lyd_create_opaq(lydctx->jsonctx->ctx, name, name_len, prefix, prefix_len, module_name, module_name_len, value,
+ value_len, &dynamic, LY_VALUE_JSON, NULL, type_hint, node_p);
+ if (dynamic) {
+ free((char *)value);
+ }
+
+ return ret;
+}
+
+static LY_ERR lydjson_subtree_r(struct lyd_json_ctx *lydctx, struct lyd_node *parent, struct lyd_node **first_p,
+ struct ly_set *parsed);
+
+/**
+ * @brief Parse opaq node from the input.
+ *
+ * In case of processing array, the whole array is being processed and the resulting @p node_p is the last item of the array.
+ *
+ * @param[in] lydctx JSON data parser context.
+ * @param[in] name Name of the opaq node to create.
+ * @param[in] name_len Length of the @p name string.
+ * @param[in] prefix Prefix of the opaq node to create.
+ * @param[in] prefix_len Length of the @p prefx string.
+ * @param[in] parent Data parent of the opaq node to create, can be NULL in case of top level,
+ * but must be set if @p first is not.
+ * @param[in,out] status_p Pointer to the current status of the parser context,
+ * since the function manipulates with the context and process the input, the status can be updated.
+ * @param[in,out] status_inner_p In case of processing JSON array, this parameter points to a standalone
+ * context status of the array content. Otherwise, it is supposed to be the same as @p status_p.
+ * @param[in,out] first_p First top-level/parent sibling, must be set if @p parent is not.
+ * @param[out] node_p Pointer to the created opaq node.
+ * @return LY_ERR value.
+ */
+static LY_ERR
+lydjson_parse_opaq(struct lyd_json_ctx *lydctx, const char *name, size_t name_len, const char *prefix, size_t prefix_len,
+ struct lyd_node *parent, enum LYJSON_PARSER_STATUS *status_p, enum LYJSON_PARSER_STATUS *status_inner_p,
+ struct lyd_node **first_p, struct lyd_node **node_p)
+{
+ LY_CHECK_RET(lydjson_create_opaq(lydctx, name, name_len, prefix, prefix_len, parent, status_inner_p, node_p));
+
+ if ((*status_p == LYJSON_ARRAY) && (*status_inner_p == LYJSON_NULL)) {
+ /* special array null value */
+ ((struct lyd_node_opaq *)*node_p)->hints |= LYD_VALHINT_EMPTY;
+
+ /* must be the only item */
+ LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status_inner_p));
+ if (*status_inner_p != LYJSON_ARRAY_CLOSED) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX, "Array \"null\" member with another member.");
+ return LY_EVALID;
+ }
+
+ goto finish;
+ }
+
+ while ((*status_p == LYJSON_ARRAY) || (*status_p == LYJSON_ARRAY_EMPTY)) {
+ /* process another instance of the same node */
+
+ if ((*status_inner_p == LYJSON_OBJECT) || (*status_inner_p == LYJSON_OBJECT_EMPTY)) {
+ /* array with objects, list */
+ ((struct lyd_node_opaq *)*node_p)->hints |= LYD_NODEHINT_LIST;
+
+ /* but first process children of the object in the array */
+ while ((*status_inner_p != LYJSON_OBJECT_CLOSED) && (*status_inner_p != LYJSON_OBJECT_EMPTY)) {
+ LY_CHECK_RET(lydjson_subtree_r(lydctx, *node_p, lyd_node_child_p(*node_p), NULL));
+ *status_inner_p = lyjson_ctx_status(lydctx->jsonctx, 0);
+ }
+ } else {
+ /* array with values, leaf-list */
+ ((struct lyd_node_opaq *)*node_p)->hints |= LYD_NODEHINT_LEAFLIST;
+ }
+
+ LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status_inner_p));
+ if (*status_inner_p == LYJSON_ARRAY_CLOSED) {
+ goto finish;
+ }
+
+ /* continue with the next instance */
+ assert(node_p);
+ lydjson_maintain_children(parent, first_p, node_p, lydctx->parse_opts & LYD_PARSE_ORDERED ? 1 : 0, NULL);
+ LY_CHECK_RET(lydjson_create_opaq(lydctx, name, name_len, prefix, prefix_len, parent, status_inner_p, node_p));
+ }
+
+ if ((*status_p == LYJSON_OBJECT) || (*status_p == LYJSON_OBJECT_EMPTY)) {
+ /* process children */
+ while (*status_p != LYJSON_OBJECT_CLOSED && *status_p != LYJSON_OBJECT_EMPTY) {
+ LY_CHECK_RET(lydjson_subtree_r(lydctx, *node_p, lyd_node_child_p(*node_p), NULL));
+ *status_p = lyjson_ctx_status(lydctx->jsonctx, 0);
+ }
+ }
+
+finish:
+ /* finish linking metadata */
+ return lydjson_metadata_finish(lydctx, lyd_node_child_p(*node_p));
+}
+
+/**
+ * @brief Move to the second item in the name/X pair and parse opaq node from the input.
+ *
+ * This function is basically the wrapper of the ::lydjson_parse_opaq().
+ * In addition, it calls the ::json_ctx_next() and prepares the status_inner_p parameter
+ * for ::lydjson_parse_opaq().
+ *
+ * @param[in] lydctx JSON data parser context.
+ * @param[in] name Name of the opaq node to create.
+ * @param[in] name_len Length of the @p name string.
+ * @param[in] prefix Prefix of the opaq node to create.
+ * @param[in] prefix_len Length of the @p prefx string.
+ * @param[in] parent Data parent of the opaq node to create, can be NULL in case of top level,
+ * but must be set if @p first is not.
+ * @param[in,out] status_p Pointer to the current status of the parser context,
+ * since the function manipulates with the context and process the input, the status can be updated.
+ * @param[in,out] first_p First top-level/parent sibling, must be set if @p parent is not.
+ * @param[out] node_p Pointer to the created opaq node.
+ * @return LY_ERR value.
+ */
+static LY_ERR
+lydjson_ctx_next_parse_opaq(struct lyd_json_ctx *lydctx, const char *name, size_t name_len,
+ const char *prefix, size_t prefix_len, struct lyd_node *parent, enum LYJSON_PARSER_STATUS *status_p,
+ struct lyd_node **first_p, struct lyd_node **node_p)
+{
+ enum LYJSON_PARSER_STATUS status_inner = 0;
+
+ /* move to the second item in the name/X pair */
+ LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status_p));
+
+ if (*status_p == LYJSON_ARRAY) {
+ /* move into the array */
+ LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, &status_inner));
+ } else {
+ /* just a flag to pass correct parameters into lydjson_parse_opaq() */
+ status_inner = LYJSON_ERROR;
+ }
+
+ if (status_inner == LYJSON_ERROR) {
+ status_inner = *status_p;
+ }
+
+ /* parse opaq node from the input */
+ LY_CHECK_RET(lydjson_parse_opaq(lydctx, name, name_len, prefix, prefix_len, parent, status_p, &status_inner,
+ first_p, node_p));
+
+ return LY_SUCCESS;
+}
+
+/**
+ * @brief Process the attribute container (starting by @)
+ *
+ * @param[in] lydctx JSON data parser context.
+ * @param[in] attr_node The data node referenced by the attribute container, if already known.
+ * @param[in] snode The schema node of the data node referenced by the attribute container, if known.
+ * @param[in] name Name of the opaq node to create.
+ * @param[in] name_len Length of the @p name string.
+ * @param[in] prefix Prefix of the opaq node to create.
+ * @param[in] prefix_len Length of the @p prefx string.
+ * @param[in] parent Data parent of the opaq node to create, can be NULL in case of top level,
+ * but must be set if @p first is not.
+ * @param[in,out] status_p Pointer to the current status of the parser context,
+ * since the function manipulates with the context and process the input, the status can be updated.
+ * @param[in,out] first_p First top-level/parent sibling, must be set if @p parent is not.
+ * @param[out] node_p Pointer to the created opaq node.
+ * @return LY_ERR value.
+ */
+static LY_ERR
+lydjson_parse_attribute(struct lyd_json_ctx *lydctx, struct lyd_node *attr_node, const struct lysc_node *snode,
+ const char *name, size_t name_len, const char *prefix, size_t prefix_len, struct lyd_node *parent,
+ enum LYJSON_PARSER_STATUS *status_p, struct lyd_node **first_p, struct lyd_node **node_p)
+{
+ LY_ERR r;
+ const char *opaq_name, *mod_name;
+ size_t opaq_name_len;
+
+ if (!snode && !prefix) {
+ /* set the prefix */
+ if (parent) {
+ lydjson_get_node_prefix(parent, NULL, 0, &prefix, &prefix_len);
+ } else {
+ prefix = "";
+ prefix_len = 0;
+ }
+ }
+
+ /* parse as an attribute to a (opaque) node */
+ if (!attr_node) {
+ /* try to find the instance */
+ LY_LIST_FOR(*first_p, attr_node) {
+ if (snode) {
+ if (attr_node->schema) {
+ if (attr_node->schema == snode) {
+ break;
+ }
+ } else {
+ mod_name = ((struct lyd_node_opaq *)attr_node)->name.module_name;
+ if (!strcmp(LYD_NAME(attr_node), snode->name) && mod_name && !strcmp(mod_name, snode->module->name)) {
+ break;
+ }
+ }
+ } else {
+ if (attr_node->schema) {
+ if (!ly_strncmp(LYD_NAME(attr_node), name, name_len) &&
+ !ly_strncmp(attr_node->schema->module->name, prefix, prefix_len)) {
+ break;
+ }
+ } else {
+ mod_name = ((struct lyd_node_opaq *)attr_node)->name.module_name;
+ if (!ly_strncmp(LYD_NAME(attr_node), name, name_len) && mod_name &&
+ !ly_strncmp(mod_name, prefix, prefix_len)) {
+ break;
+ }
+ }
+ }
+ }
+ }
+ if (!attr_node) {
+ /* parse just as an opaq node with the name beginning with @,
+ * later we have to check that it belongs to a standard node
+ * and it is supposed to be converted to a metadata */
+ uint32_t prev_opts;
+
+ /* backup parser options to parse unknown metadata as opaq nodes and try to resolve them later */
+ prev_opts = lydctx->parse_opts;
+ lydctx->parse_opts &= ~LYD_PARSE_STRICT;
+ lydctx->parse_opts |= LYD_PARSE_OPAQ;
+
+ opaq_name = prefix ? prefix - 1 : name - 1;
+ opaq_name_len = prefix ? prefix_len + name_len + 2 : name_len + 1;
+ r = lydjson_ctx_next_parse_opaq(lydctx, opaq_name, opaq_name_len, NULL, 0, parent, status_p, first_p, node_p);
+
+ /* restore the parser options */
+ lydctx->parse_opts = prev_opts;
+ LY_CHECK_RET(r);
+ } else {
+ LY_CHECK_RET(lydjson_metadata(lydctx, snode, attr_node));
+ }
+
+ return LY_SUCCESS;
+}
+
+/**
+ * @brief Parse a single anydata/anyxml node.
+ *
+ * @param[in] lydctx JSON data parser context. When the function returns, the context is in the same state
+ * as before calling, despite it is necessary to process input data for checking.
+ * @param[in] snode Schema node corresponding to the member currently being processed in the context.
+ * @param[in] ext Extension instance of @p snode, if any.
+ * @param[in,out] status JSON parser status, is updated.
+ * @param[out] node Parsed data (or opaque) node.
+ * @return LY_SUCCESS if a node was successfully parsed,
+ * @return LY_ENOT in case of invalid JSON encoding,
+ * @return LY_ERR on other errors.
+ */
+static LY_ERR
+lydjson_parse_any(struct lyd_json_ctx *lydctx, const struct lysc_node *snode, struct lysc_ext_instance *ext,
+ enum LYJSON_PARSER_STATUS *status, struct lyd_node **node)
+{
+ LY_ERR rc = LY_SUCCESS;
+ uint32_t prev_parse_opts, prev_int_opts;
+ struct ly_in in_start;
+ char *val = NULL;
+ struct lyd_node *tree = NULL;
+
+ assert(snode->nodetype & LYD_NODE_ANY);
+
+ /* status check according to allowed JSON types */
+ if (snode->nodetype == LYS_ANYXML) {
+ LY_CHECK_RET((*status != LYJSON_OBJECT) && (*status != LYJSON_OBJECT_EMPTY) && (*status != LYJSON_ARRAY) &&
+ (*status != LYJSON_ARRAY_EMPTY) && (*status != LYJSON_NUMBER) && (*status != LYJSON_STRING) &&
+ (*status != LYJSON_FALSE) && (*status != LYJSON_TRUE) && (*status != LYJSON_NULL), LY_ENOT);
+ } else {
+ LY_CHECK_RET((*status != LYJSON_OBJECT) && (*status != LYJSON_OBJECT_EMPTY), LY_ENOT);
+ }
+
+ /* create any node */
+ switch (*status) {
+ case LYJSON_OBJECT:
+ /* parse any data tree with correct options, first backup the current options and then make the parser
+ * process data as opaq nodes */
+ prev_parse_opts = lydctx->parse_opts;
+ lydctx->parse_opts &= ~LYD_PARSE_STRICT;
+ lydctx->parse_opts |= LYD_PARSE_OPAQ | (ext ? LYD_PARSE_ONLY : 0);
+ prev_int_opts = lydctx->int_opts;
+ lydctx->int_opts |= LYD_INTOPT_ANY | LYD_INTOPT_WITH_SIBLINGS;
+
+ /* process the anydata content */
+ while (*status != LYJSON_OBJECT_CLOSED) {
+ LY_CHECK_RET(lydjson_subtree_r(lydctx, NULL, &tree, NULL));
+ *status = lyjson_ctx_status(lydctx->jsonctx, 0);
+ }
+
+ /* restore parser options */
+ lydctx->parse_opts = prev_parse_opts;
+ lydctx->int_opts = prev_int_opts;
+
+ /* finish linking metadata */
+ LY_CHECK_RET(lydjson_metadata_finish(lydctx, &tree));
+
+ LY_CHECK_RET(lyd_create_any(snode, tree, LYD_ANYDATA_DATATREE, 1, node));
+ break;
+ case LYJSON_ARRAY_EMPTY:
+ /* store the empty array */
+ if (asprintf(&val, "[]") == -1) {
+ LOGMEM(lydctx->jsonctx->ctx);
+ return LY_EMEM;
+ }
+ LY_CHECK_GOTO(rc = lyd_create_any(snode, val, LYD_ANYDATA_JSON, 1, node), val_err);
+ break;
+ case LYJSON_ARRAY:
+ /* skip until the array end */
+ in_start = *lydctx->jsonctx->in;
+ LY_CHECK_RET(lydjson_data_skip(lydctx->jsonctx));
+
+ /* make a copy of the whole array and store it */
+ if (asprintf(&val, "[%.*s", (int)(lydctx->jsonctx->in->current - in_start.current), in_start.current) == -1) {
+ LOGMEM(lydctx->jsonctx->ctx);
+ return LY_EMEM;
+ }
+ LY_CHECK_GOTO(rc = lyd_create_any(snode, val, LYD_ANYDATA_JSON, 1, node), val_err);
+ break;
+ case LYJSON_STRING:
+ /* string value */
+ if (lydctx->jsonctx->dynamic) {
+ LY_CHECK_RET(lyd_create_any(snode, lydctx->jsonctx->value, LYD_ANYDATA_STRING, 1, node));
+ lydctx->jsonctx->dynamic = 0;
+ } else {
+ val = strndup(lydctx->jsonctx->value, lydctx->jsonctx->value_len);
+ LY_CHECK_ERR_RET(!val, LOGMEM(lydctx->jsonctx->ctx), LY_EMEM);
+
+ LY_CHECK_GOTO(rc = lyd_create_any(snode, val, LYD_ANYDATA_STRING, 1, node), val_err);
+ }
+ break;
+ case LYJSON_NUMBER:
+ case LYJSON_FALSE:
+ case LYJSON_TRUE:
+ /* JSON value */
+ assert(!lydctx->jsonctx->dynamic);
+ val = strndup(lydctx->jsonctx->value, lydctx->jsonctx->value_len);
+ LY_CHECK_ERR_RET(!val, LOGMEM(lydctx->jsonctx->ctx), LY_EMEM);
+
+ LY_CHECK_GOTO(rc = lyd_create_any(snode, val, LYD_ANYDATA_JSON, 1, node), val_err);
+ break;
+ case LYJSON_NULL:
+ /* no value */
+ LY_CHECK_RET(lyd_create_any(snode, NULL, LYD_ANYDATA_JSON, 1, node));
+ break;
+ case LYJSON_OBJECT_EMPTY:
+ /* empty object */
+ LY_CHECK_RET(lyd_create_any(snode, NULL, LYD_ANYDATA_DATATREE, 1, node));
+ break;
+ default:
+ LOGINT_RET(lydctx->jsonctx->ctx);
+ }
+
+ return LY_SUCCESS;
+
+val_err:
+ free(val);
+ return rc;
+}
+
+/**
+ * @brief Parse a single instance of an inner node.
+ *
+ * @param[in] lydctx JSON data parser context.
+ * @param[in] snode Schema node corresponding to the member currently being processed in the context.
+ * @param[in] ext Extension instance of @p snode, if any.
+ * @param[in,out] status JSON parser status, is updated.
+ * @param[out] node Parsed data (or opaque) node.
+ * @return LY_SUCCESS if a node was successfully parsed,
+ * @return LY_ENOT in case of invalid JSON encoding,
+ * @return LY_ERR on other errors.
+ */
+static LY_ERR
+lydjson_parse_instance_inner(struct lyd_json_ctx *lydctx, const struct lysc_node *snode, struct lysc_ext_instance *ext,
+ enum LYJSON_PARSER_STATUS *status, struct lyd_node **node)
+{
+ LY_ERR ret = LY_SUCCESS;
+ uint32_t prev_parse_opts = lydctx->parse_opts;
+
+ LY_CHECK_RET((*status != LYJSON_OBJECT) && (*status != LYJSON_OBJECT_EMPTY), LY_ENOT);
+
+ /* create inner node */
+ LY_CHECK_RET(lyd_create_inner(snode, node));
+
+ /* use it for logging */
+ LOG_LOCSET(NULL, *node, NULL, NULL);
+
+ if (ext) {
+ /* only parse these extension data and validate afterwards */
+ lydctx->parse_opts |= LYD_PARSE_ONLY;
+ }
+
+ /* process children */
+ while ((*status != LYJSON_OBJECT_CLOSED) && (*status != LYJSON_OBJECT_EMPTY)) {
+ ret = lydjson_subtree_r(lydctx, *node, lyd_node_child_p(*node), NULL);
+ LY_CHECK_GOTO(ret, cleanup);
+ *status = lyjson_ctx_status(lydctx->jsonctx, 0);
+ }
+
+ /* finish linking metadata */
+ ret = lydjson_metadata_finish(lydctx, lyd_node_child_p(*node));
+ LY_CHECK_GOTO(ret, cleanup);
+
+ if (snode->nodetype == LYS_LIST) {
+ /* check all keys exist */
+ ret = lyd_parse_check_keys(*node);
+ LY_CHECK_GOTO(ret, cleanup);
+ }
+
+ if (!(lydctx->parse_opts & LYD_PARSE_ONLY)) {
+ /* new node validation, autodelete CANNOT occur, all nodes are new */
+ ret = lyd_validate_new(lyd_node_child_p(*node), snode, NULL, NULL);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ /* add any missing default children */
+ ret = lyd_new_implicit_r(*node, lyd_node_child_p(*node), NULL, NULL, &lydctx->node_when,
+ &lydctx->node_types, &lydctx->ext_node,
+ (lydctx->val_opts & LYD_VALIDATE_NO_STATE) ? LYD_IMPLICIT_NO_STATE : 0, NULL);
+ LY_CHECK_GOTO(ret, cleanup);
+ }
+
+cleanup:
+ lydctx->parse_opts = prev_parse_opts;
+ LOG_LOCBACK(0, 1, 0, 0);
+ return ret;
+}
+
+/**
+ * @brief Parse a single instance of a node.
+ *
+ * @param[in] lydctx JSON data parser context. When the function returns, the context is in the same state
+ * as before calling, despite it is necessary to process input data for checking.
+ * @param[in] parent Data parent of the subtree, must be set if @p first is not.
+ * @param[in,out] first_p Pointer to the variable holding the first top-level sibling, must be set if @p parent is not.
+ * @param[in] snode Schema node corresponding to the member currently being processed in the context.
+ * @param[in] ext Extension instance of @p snode, if any.
+ * @param[in] name Parsed JSON node name.
+ * @param[in] name_len Lenght of @p name.
+ * @param[in] prefix Parsed JSON node prefix.
+ * @param[in] prefix_len Length of @p prefix.
+ * @param[in,out] status JSON parser status, is updated.
+ * @param[out] node Parsed data (or opaque) node.
+ * @return LY_SUCCESS if a node was successfully parsed,
+ * @return LY_ENOT in case of invalid JSON encoding,
+ * @return LY_ERR on other errors.
+ */
+static LY_ERR
+lydjson_parse_instance(struct lyd_json_ctx *lydctx, struct lyd_node *parent, struct lyd_node **first_p,
+ const struct lysc_node *snode, struct lysc_ext_instance *ext, const char *name, size_t name_len,
+ const char *prefix, size_t prefix_len, enum LYJSON_PARSER_STATUS *status, struct lyd_node **node)
+{
+ LY_ERR ret = LY_SUCCESS;
+ uint32_t type_hints = 0;
+
+ LOG_LOCSET(snode, NULL, NULL, NULL);
+
+ ret = lydjson_data_check_opaq(lydctx, snode, &type_hints);
+ if (ret == LY_SUCCESS) {
+ assert(snode->nodetype & (LYD_NODE_TERM | LYD_NODE_INNER | LYD_NODE_ANY));
+ if (snode->nodetype & LYD_NODE_TERM) {
+ if ((*status != LYJSON_ARRAY) && (*status != LYJSON_NUMBER) && (*status != LYJSON_STRING) &&
+ (*status != LYJSON_FALSE) && (*status != LYJSON_TRUE) && (*status != LYJSON_NULL)) {
+ ret = LY_ENOT;
+ goto cleanup;
+ }
+
+ /* create terminal node */
+ LY_CHECK_GOTO(ret = lyd_parser_create_term((struct lyd_ctx *)lydctx, snode, lydctx->jsonctx->value,
+ lydctx->jsonctx->value_len, &lydctx->jsonctx->dynamic, LY_VALUE_JSON, NULL, type_hints, node), cleanup);
+
+ /* move JSON parser */
+ if (*status == LYJSON_ARRAY) {
+ /* only [null], 2 more moves are needed */
+ LY_CHECK_GOTO(ret = lyjson_ctx_next(lydctx->jsonctx, status), cleanup);
+ assert(*status == LYJSON_NULL);
+ LY_CHECK_GOTO(ret = lyjson_ctx_next(lydctx->jsonctx, status), cleanup);
+ assert(*status == LYJSON_ARRAY_CLOSED);
+ }
+ } else if (snode->nodetype & LYD_NODE_INNER) {
+ /* create inner node */
+ LY_CHECK_GOTO(ret = lydjson_parse_instance_inner(lydctx, snode, ext, status, node), cleanup);
+ } else {
+ /* create any node */
+ LY_CHECK_GOTO(ret = lydjson_parse_any(lydctx, snode, ext, status, node), cleanup);
+ }
+
+ /* add/correct flags */
+ LY_CHECK_GOTO(ret = lyd_parse_set_data_flags(*node, &(*node)->meta, (struct lyd_ctx *)lydctx, ext), cleanup);
+
+ if (!(lydctx->parse_opts & LYD_PARSE_ONLY)) {
+ /* store for ext instance node validation, if needed */
+ LY_CHECK_GOTO(ret = lyd_validate_node_ext(*node, &lydctx->ext_node), cleanup);
+ }
+ } else if (ret == LY_ENOT) {
+ /* parse it again as an opaq node */
+ LY_CHECK_GOTO(ret = lydjson_parse_opaq(lydctx, name, name_len, prefix, prefix_len, parent, status, status,
+ first_p, node), cleanup);
+
+ if (snode->nodetype == LYS_LIST) {
+ ((struct lyd_node_opaq *)*node)->hints |= LYD_NODEHINT_LIST;
+ } else if (snode->nodetype == LYS_LEAFLIST) {
+ ((struct lyd_node_opaq *)*node)->hints |= LYD_NODEHINT_LEAFLIST;
+ }
+ } else {
+ /* error */
+ goto cleanup;
+ }
+
+cleanup:
+ LOG_LOCBACK(1, 0, 0, 0);
+ return ret;
+}
+
+/**
+ * @brief Parse JSON subtree. All leaf-list and list instances of a node are considered one subtree.
+ *
+ * @param[in] lydctx JSON data parser context.
+ * @param[in] parent Data parent of the subtree, must be set if @p first is not.
+ * @param[in,out] first_p Pointer to the variable holding the first top-level sibling, must be set if @p parent is not.
+ * @param[in,out] parsed Optional set to add all the parsed siblings into.
+ * @return LY_ERR value.
+ */
+static LY_ERR
+lydjson_subtree_r(struct lyd_json_ctx *lydctx, struct lyd_node *parent, struct lyd_node **first_p, struct ly_set *parsed)
+{
+ LY_ERR ret = LY_SUCCESS, r;
+ enum LYJSON_PARSER_STATUS status = lyjson_ctx_status(lydctx->jsonctx, 0);
+ const char *name, *prefix = NULL, *expected = NULL;
+ size_t name_len, prefix_len = 0;
+ ly_bool is_meta = 0, parse_subtree;
+ const struct lysc_node *snode = NULL;
+ struct lysc_ext_instance *ext;
+ struct lyd_node *node = NULL, *attr_node = NULL;
+ const struct ly_ctx *ctx = lydctx->jsonctx->ctx;
+ char *value = NULL;
+
+ assert(parent || first_p);
+ assert(status == LYJSON_OBJECT);
+
+ parse_subtree = lydctx->parse_opts & LYD_PARSE_SUBTREE ? 1 : 0;
+ /* all descendants should be parsed */
+ lydctx->parse_opts &= ~LYD_PARSE_SUBTREE;
+
+ /* process the node name */
+ lydjson_parse_name(lydctx->jsonctx->value, lydctx->jsonctx->value_len, &name, &name_len, &prefix, &prefix_len, &is_meta);
+ lyjson_ctx_give_dynamic_value(lydctx->jsonctx, &value);
+
+ if (!is_meta || name_len || prefix_len) {
+ /* get the schema node */
+ r = lydjson_get_snode(lydctx, is_meta, prefix, prefix_len, name, name_len, parent, &snode, &ext);
+ if (r == LY_ENOT) {
+ /* data parsed */
+ goto cleanup;
+ }
+ LY_CHECK_ERR_GOTO(r, ret = r, cleanup);
+
+ if (!snode) {
+ /* we will not be parsing it as metadata */
+ is_meta = 0;
+ }
+ }
+
+ if (is_meta) {
+ /* parse as metadata */
+ if (!name_len && !prefix_len) {
+ /* parent's metadata without a name - use the schema from the parent */
+ if (!parent) {
+ LOGVAL(ctx, LYVE_SYNTAX_JSON,
+ "Invalid metadata format - \"@\" can be used only inside anydata, container or list entries.");
+ ret = LY_EVALID;
+ goto cleanup;
+ }
+ attr_node = parent;
+ snode = attr_node->schema;
+ }
+ ret = lydjson_parse_attribute(lydctx, attr_node, snode, name, name_len, prefix, prefix_len, parent, &status,
+ first_p, &node);
+ LY_CHECK_GOTO(ret, cleanup);
+ } else if (!snode) {
+ /* parse as an opaq node */
+ assert((lydctx->parse_opts & LYD_PARSE_OPAQ) || (lydctx->int_opts));
+
+ /* opaq node cannot have an empty string as the name. */
+ if (name_len == 0) {
+ LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX_JSON, "A JSON object member name cannot be a zero-length string.");
+ ret = LY_EVALID;
+ goto cleanup;
+ }
+
+ /* move to the second item in the name/X pair and parse opaq */
+ ret = lydjson_ctx_next_parse_opaq(lydctx, name, name_len, prefix, prefix_len, parent, &status, first_p, &node);
+ LY_CHECK_GOTO(ret, cleanup);
+ } else {
+ /* parse as a standard lyd_node but it can still turn out to be an opaque node */
+
+ /* move to the second item in the name/X pair */
+ LY_CHECK_GOTO(ret = lyjson_ctx_next(lydctx->jsonctx, &status), cleanup);
+
+ /* set expected representation */
+ switch (snode->nodetype) {
+ case LYS_LEAFLIST:
+ expected = "name/array of values";
+ break;
+ case LYS_LIST:
+ expected = "name/array of objects";
+ break;
+ case LYS_LEAF:
+ if (status == LYJSON_ARRAY) {
+ expected = "name/[null]";
+ } else {
+ expected = "name/value";
+ }
+ break;
+ case LYS_CONTAINER:
+ case LYS_NOTIF:
+ case LYS_ACTION:
+ case LYS_RPC:
+ case LYS_ANYDATA:
+ expected = "name/object";
+ break;
+ case LYS_ANYXML:
+ if (status == LYJSON_ARRAY) {
+ expected = "name/array";
+ } else {
+ expected = "name/value";
+ }
+ break;
+ }
+
+ /* check the representation according to the nodetype and then continue with the content */
+ switch (snode->nodetype) {
+ case LYS_LEAFLIST:
+ case LYS_LIST:
+ if (status == LYJSON_ARRAY_EMPTY) {
+ /* no instances, skip */
+ break;
+ }
+ LY_CHECK_GOTO(status != LYJSON_ARRAY, representation_error);
+
+ /* move into array */
+ ret = lyjson_ctx_next(lydctx->jsonctx, &status);
+ LY_CHECK_GOTO(ret, cleanup);
+
+ /* process all the values/objects */
+ do {
+ ret = lydjson_parse_instance(lydctx, parent, first_p, snode, ext, name, name_len, prefix, prefix_len,
+ &status, &node);
+ if (ret == LY_ENOT) {
+ goto representation_error;
+ } else if (ret) {
+ goto cleanup;
+ }
+ lydjson_maintain_children(parent, first_p, &node, lydctx->parse_opts & LYD_PARSE_ORDERED ? 1 : 0, ext);
+
+ /* move after the item(s) */
+ LY_CHECK_GOTO(ret = lyjson_ctx_next(lydctx->jsonctx, &status), cleanup);
+ } while (status != LYJSON_ARRAY_CLOSED);
+
+ break;
+ case LYS_LEAF:
+ case LYS_CONTAINER:
+ case LYS_NOTIF:
+ case LYS_ACTION:
+ case LYS_RPC:
+ case LYS_ANYDATA:
+ case LYS_ANYXML:
+ /* process the value/object */
+ ret = lydjson_parse_instance(lydctx, parent, first_p, snode, ext, name, name_len, prefix, prefix_len,
+ &status, &node);
+ if (ret == LY_ENOT) {
+ goto representation_error;
+ } else if (ret) {
+ goto cleanup;
+ }
+
+ if (snode->nodetype & (LYS_RPC | LYS_ACTION | LYS_NOTIF)) {
+ /* rememeber the RPC/action/notification */
+ lydctx->op_node = node;
+ }
+ break;
+ }
+ }
+
+ /* finally connect the parsed node */
+ lydjson_maintain_children(parent, first_p, &node, lydctx->parse_opts & LYD_PARSE_ORDERED ? 1 : 0, ext);
+
+ /* rememeber a successfully parsed node */
+ if (parsed && node) {
+ ly_set_add(parsed, node, 1, NULL);
+ }
+
+ if (!parse_subtree) {
+ /* move after the item(s) */
+ LY_CHECK_GOTO(ret = lyjson_ctx_next(lydctx->jsonctx, &status), cleanup);
+ }
+
+ /* success */
+ goto cleanup;
+
+representation_error:
+ LOGVAL(ctx, LYVE_SYNTAX_JSON, "The %s \"%s\" is expected to be represented as JSON %s, but input data contains name/%s.",
+ lys_nodetype2str(snode->nodetype), snode->name, expected, lyjson_token2str(status));
+ ret = LY_EVALID;
+
+cleanup:
+ free(value);
+ lyd_free_tree(node);
+ return ret;
+}
+
+/**
+ * @brief Common start of JSON parser processing different types of the input data.
+ *
+ * @param[in] ctx libyang context
+ * @param[in] in Input structure.
+ * @param[in] parse_opts Options for parser, see @ref dataparseroptions.
+ * @param[in] val_opts Options for the validation phase, see @ref datavalidationoptions.
+ * @param[out] lydctx_p Data parser context to finish validation.
+ * @param[out] status Storage for the current context's status
+ * @return LY_ERR value.
+ */
+static LY_ERR
+lyd_parse_json_init(const struct ly_ctx *ctx, struct ly_in *in, uint32_t parse_opts, uint32_t val_opts,
+ struct lyd_json_ctx **lydctx_p, enum LYJSON_PARSER_STATUS *status)
+{
+ LY_ERR ret = LY_SUCCESS;
+ struct lyd_json_ctx *lydctx;
+ size_t i;
+ ly_bool subtree;
+
+ assert(lydctx_p);
+ assert(status);
+
+ /* init context */
+ lydctx = calloc(1, sizeof *lydctx);
+ LY_CHECK_ERR_RET(!lydctx, LOGMEM(ctx), LY_EMEM);
+ lydctx->parse_opts = parse_opts;
+ lydctx->val_opts = val_opts;
+ lydctx->free = lyd_json_ctx_free;
+
+ /* starting top-level */
+ for (i = 0; in->current[i] != '\0' && is_jsonws(in->current[i]); i++) {
+ if (in->current[i] == '\n') {
+ /* new line */
+ LY_IN_NEW_LINE(in);
+ }
+ }
+
+ subtree = (parse_opts & LYD_PARSE_SUBTREE) ? 1 : 0;
+ LY_CHECK_ERR_RET(ret = lyjson_ctx_new(ctx, in, subtree, &lydctx->jsonctx), free(lydctx), ret);
+ *status = lyjson_ctx_status(lydctx->jsonctx, 0);
+
+ if ((*status == LYJSON_END) || (*status == LYJSON_OBJECT_EMPTY) || (*status == LYJSON_OBJECT)) {
+ *lydctx_p = lydctx;
+ return LY_SUCCESS;
+ } else {
+ /* expecting top-level object */
+ LOGVAL(ctx, LYVE_SYNTAX_JSON, "Expected top-level JSON object, but %s found.", lyjson_token2str(*status));
+ *lydctx_p = NULL;
+ lyd_json_ctx_free((struct lyd_ctx *)lydctx);
+ return LY_EVALID;
+ }
+}
+
+LY_ERR
+lyd_parse_json(const struct ly_ctx *ctx, const struct lysc_ext_instance *ext, struct lyd_node *parent,
+ struct lyd_node **first_p, struct ly_in *in, uint32_t parse_opts, uint32_t val_opts, uint32_t int_opts,
+ struct ly_set *parsed, ly_bool *subtree_sibling, struct lyd_ctx **lydctx_p)
+{
+ LY_ERR rc = LY_SUCCESS;
+ struct lyd_json_ctx *lydctx = NULL;
+ enum LYJSON_PARSER_STATUS status;
+
+ rc = lyd_parse_json_init(ctx, in, parse_opts, val_opts, &lydctx, &status);
+ LY_CHECK_GOTO(rc || status == LYJSON_END || status == LYJSON_OBJECT_EMPTY, cleanup);
+
+ assert(status == LYJSON_OBJECT);
+
+ lydctx->int_opts = int_opts;
+ lydctx->ext = ext;
+
+ /* find the operation node if it exists already */
+ LY_CHECK_GOTO(rc = lyd_parser_find_operation(parent, int_opts, &lydctx->op_node), cleanup);
+
+ /* read subtree(s) */
+ while (lydctx->jsonctx->in->current[0] && (status != LYJSON_OBJECT_CLOSED)) {
+ rc = lydjson_subtree_r(lydctx, parent, first_p, parsed);
+ LY_CHECK_GOTO(rc, cleanup);
+
+ status = lyjson_ctx_status(lydctx->jsonctx, 0);
+
+ if (!(int_opts & LYD_INTOPT_WITH_SIBLINGS)) {
+ break;
+ }
+ }
+
+ if ((int_opts & LYD_INTOPT_NO_SIBLINGS) && lydctx->jsonctx->in->current[0] &&
+ (lyjson_ctx_status(lydctx->jsonctx, 0) != LYJSON_OBJECT_CLOSED)) {
+ LOGVAL(ctx, LYVE_SYNTAX, "Unexpected sibling node.");
+ rc = LY_EVALID;
+ goto cleanup;
+ }
+ if ((int_opts & (LYD_INTOPT_RPC | LYD_INTOPT_ACTION | LYD_INTOPT_NOTIF | LYD_INTOPT_REPLY)) && !lydctx->op_node) {
+ LOGVAL(ctx, LYVE_DATA, "Missing the operation node.");
+ rc = LY_EVALID;
+ goto cleanup;
+ }
+
+ /* finish linking metadata */
+ rc = lydjson_metadata_finish(lydctx, parent ? lyd_node_child_p(parent) : first_p);
+ LY_CHECK_GOTO(rc, cleanup);
+
+ if (parse_opts & LYD_PARSE_SUBTREE) {
+ /* check for a sibling object */
+ assert(subtree_sibling);
+ if (lydctx->jsonctx->in->current[0] == ',') {
+ *subtree_sibling = 1;
+
+ /* move to the next object */
+ ly_in_skip(lydctx->jsonctx->in, 1);
+ } else {
+ *subtree_sibling = 0;
+ }
+ }
+
+cleanup:
+ /* there should be no unresolved types stored */
+ assert(!(parse_opts & LYD_PARSE_ONLY) || !lydctx || (!lydctx->node_types.count && !lydctx->meta_types.count &&
+ !lydctx->node_when.count));
+
+ if (rc) {
+ lyd_json_ctx_free((struct lyd_ctx *)lydctx);
+ } else {
+ *lydctx_p = (struct lyd_ctx *)lydctx;
+
+ /* the JSON context is no more needed, freeing it also stops logging line numbers which would be confusing now */
+ lyjson_ctx_free(lydctx->jsonctx);
+ lydctx->jsonctx = NULL;
+ }
+ return rc;
+}