blob: 5a29bb231bd66bda39a01c237cd1bed77beae650 [file] [log] [blame]
Radek Krejcie7b95092019-05-15 11:03:07 +02001/**
Michal Vaskob1b5c262020-03-05 14:29:47 +01002 * @file tree_data.c
Radek Krejcie7b95092019-05-15 11:03:07 +02003 * @author Radek Krejci <rkrejci@cesnet.cz>
Michal Vasko6cd9b6b2020-06-22 10:05:22 +02004 * @brief Data tree functions
Radek Krejcie7b95092019-05-15 11:03:07 +02005 *
Michal Vasko6cd9b6b2020-06-22 10:05:22 +02006 * Copyright (c) 2015 - 2020 CESNET, z.s.p.o.
Radek Krejcie7b95092019-05-15 11:03:07 +02007 *
8 * This source code is licensed under BSD 3-Clause License (the "License").
9 * You may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
11 *
12 * https://opensource.org/licenses/BSD-3-Clause
13 */
14
Radek Krejci535ea9f2020-05-29 16:01:05 +020015#define _GNU_SOURCE
16
17#include "tree_data.h"
Radek Krejcie7b95092019-05-15 11:03:07 +020018
Radek Krejci084289f2019-07-09 17:35:30 +020019#include <assert.h>
Radek Krejcie7b95092019-05-15 11:03:07 +020020#include <ctype.h>
Radek Krejci47fab892020-11-05 17:02:41 +010021#include <inttypes.h>
Radek Krejcie7b95092019-05-15 11:03:07 +020022#include <stdarg.h>
23#include <stdint.h>
Radek Krejci535ea9f2020-05-29 16:01:05 +020024#include <stdio.h>
25#include <stdlib.h>
Radek Krejcie7b95092019-05-15 11:03:07 +020026#include <string.h>
Radek Krejcie7b95092019-05-15 11:03:07 +020027
Radek Krejci535ea9f2020-05-29 16:01:05 +020028#include "common.h"
Michal Vasko5aa44c02020-06-29 11:47:02 +020029#include "compat.h"
Radek Krejci535ea9f2020-05-29 16:01:05 +020030#include "context.h"
31#include "dict.h"
Michal Vaskoa6669ba2020-08-06 16:14:26 +020032#include "diff.h"
Michal Vasko90932a92020-02-12 14:33:03 +010033#include "hash_table.h"
Radek Krejci47fab892020-11-05 17:02:41 +010034#include "in.h"
Michal Vaskoafac7822020-10-20 14:22:26 +020035#include "in_internal.h"
Radek Krejci535ea9f2020-05-29 16:01:05 +020036#include "log.h"
Radek Krejci7931b192020-06-25 17:05:03 +020037#include "parser_data.h"
38#include "parser_internal.h"
Michal Vasko004d3152020-06-11 19:59:22 +020039#include "path.h"
Radek Krejci0aa1f702021-04-01 16:16:19 +020040#include "plugins.h"
Radek Krejcif1ca0ac2021-04-12 16:00:06 +020041#include "plugins_exts/metadata.h"
Radek Krejci3e6632f2021-03-22 22:08:21 +010042#include "plugins_internal.h"
Radek Krejci535ea9f2020-05-29 16:01:05 +020043#include "plugins_types.h"
44#include "set.h"
45#include "tree.h"
46#include "tree_data_internal.h"
Radek Krejci859a15a2021-03-05 20:56:59 +010047#include "tree_edit.h"
Radek Krejci535ea9f2020-05-29 16:01:05 +020048#include "tree_schema.h"
49#include "tree_schema_internal.h"
Michal Vaskoa6669ba2020-08-06 16:14:26 +020050#include "validation.h"
Radek Krejci535ea9f2020-05-29 16:01:05 +020051#include "xml.h"
52#include "xpath.h"
Radek Krejcie7b95092019-05-15 11:03:07 +020053
Michal Vaskob104f112020-07-17 09:54:54 +020054static LY_ERR lyd_find_sibling_schema(const struct lyd_node *siblings, const struct lysc_node *schema,
Radek Krejci0f969882020-08-21 16:56:47 +020055 struct lyd_node **match);
Michal Vaskob104f112020-07-17 09:54:54 +020056
Radek Krejci084289f2019-07-09 17:35:30 +020057LY_ERR
Radek Krejcif9943642021-04-26 10:18:21 +020058lyd_value_store(const struct ly_ctx *ctx, struct lyd_value *val, const struct lysc_type *type, const void *value,
Radek Krejci8df109d2021-04-23 12:19:08 +020059 size_t value_len, ly_bool *dynamic, LY_VALUE_FORMAT format, void *prefix_data, uint32_t hints,
Radek Krejci2efc45b2020-12-22 16:25:44 +010060 const struct lysc_node *ctx_node, ly_bool *incomplete)
Radek Krejci084289f2019-07-09 17:35:30 +020061{
Michal Vaskofeca4fb2020-10-05 08:58:40 +020062 LY_ERR ret;
Radek Krejci084289f2019-07-09 17:35:30 +020063 struct ly_err_item *err = NULL;
Radek Krejci0b013302021-03-29 15:22:32 +020064 uint32_t options = (dynamic && *dynamic ? LYPLG_TYPE_STORE_DYNAMIC : 0);
Radek Krejci084289f2019-07-09 17:35:30 +020065
Michal Vasko62ed8652021-04-28 09:38:37 +020066 if (!value) {
67 value = "";
68 }
Michal Vaskofeca4fb2020-10-05 08:58:40 +020069 if (incomplete) {
70 *incomplete = 0;
Radek Krejci084289f2019-07-09 17:35:30 +020071 }
72
Michal Vasko405cc9e2020-12-01 12:01:27 +010073 ret = type->plugin->store(ctx, type, value, value_len, options, format, prefix_data, hints, ctx_node, val, NULL, &err);
Radek Iša96b2de12021-02-16 10:32:57 +010074 if (dynamic) {
75 *dynamic = 0;
76 }
77
Michal Vasko90932a92020-02-12 14:33:03 +010078 if (ret == LY_EINCOMPLETE) {
Michal Vaskofeca4fb2020-10-05 08:58:40 +020079 if (incomplete) {
80 *incomplete = 1;
81 }
82 } else if (ret) {
83 if (err) {
aPiecek4204b612021-05-03 09:06:16 +020084 LOGVAL_ERRITEM(ctx, err);
Michal Vaskofeca4fb2020-10-05 08:58:40 +020085 ly_err_free(err);
86 } else {
Radek Krejci2efc45b2020-12-22 16:25:44 +010087 LOGVAL(ctx, LYVE_OTHER, "Storing value \"%.*s\" failed.", (int)value_len, value);
Michal Vaskofeca4fb2020-10-05 08:58:40 +020088 }
89 return ret;
Michal Vasko90932a92020-02-12 14:33:03 +010090 }
91
Michal Vaskofeca4fb2020-10-05 08:58:40 +020092 return LY_SUCCESS;
Michal Vasko90932a92020-02-12 14:33:03 +010093}
94
Radek Krejci38d85362019-09-05 16:26:38 +020095LY_ERR
Michal Vaskofeca4fb2020-10-05 08:58:40 +020096lyd_value_validate_incomplete(const struct ly_ctx *ctx, const struct lysc_type *type, struct lyd_value *val,
Radek Krejci2efc45b2020-12-22 16:25:44 +010097 const struct lyd_node *ctx_node, const struct lyd_node *tree)
Radek Krejci38d85362019-09-05 16:26:38 +020098{
Michal Vaskofeca4fb2020-10-05 08:58:40 +020099 LY_ERR ret;
Radek Krejci38d85362019-09-05 16:26:38 +0200100 struct ly_err_item *err = NULL;
Radek Krejci38d85362019-09-05 16:26:38 +0200101
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200102 assert(type->plugin->validate);
Michal Vasko8d544252020-03-02 10:19:52 +0100103
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200104 ret = type->plugin->validate(ctx, type, ctx_node, tree, val, &err);
105 if (ret) {
Radek Krejci38d85362019-09-05 16:26:38 +0200106 if (err) {
aPiecek4204b612021-05-03 09:06:16 +0200107 LOGVAL_ERRITEM(ctx, err);
Radek Krejci38d85362019-09-05 16:26:38 +0200108 ly_err_free(err);
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200109 } else {
Radek Krejci6d5ba0c2021-04-26 07:49:59 +0200110 LOGVAL(ctx, LYVE_OTHER, "Resolving value \"%s\" failed.", type->plugin->print(ctx, val, LY_VALUE_CANON,
111 NULL, NULL, NULL));
Radek Krejci38d85362019-09-05 16:26:38 +0200112 }
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200113 return ret;
Radek Krejci38d85362019-09-05 16:26:38 +0200114 }
115
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200116 return LY_SUCCESS;
Radek Krejci38d85362019-09-05 16:26:38 +0200117}
118
Michal Vaskof937cfe2020-08-03 16:07:12 +0200119LY_ERR
Michal Vaskoaebbce02021-04-06 09:23:37 +0200120lys_value_validate(const struct ly_ctx *ctx, const struct lysc_node *node, const char *value, size_t value_len,
Radek Krejci8df109d2021-04-23 12:19:08 +0200121 LY_VALUE_FORMAT format, void *prefix_data)
Radek Krejci084289f2019-07-09 17:35:30 +0200122{
123 LY_ERR rc = LY_SUCCESS;
124 struct ly_err_item *err = NULL;
Michal Vaskoba99a3e2020-08-18 15:50:05 +0200125 struct lyd_value storage;
Radek Krejci084289f2019-07-09 17:35:30 +0200126 struct lysc_type *type;
Radek Krejci084289f2019-07-09 17:35:30 +0200127
128 LY_CHECK_ARG_RET(ctx, node, value, LY_EINVAL);
129
130 if (!(node->nodetype & (LYS_LEAF | LYS_LEAFLIST))) {
131 LOGARG(ctx, node);
132 return LY_EINVAL;
133 }
134
Michal Vasko22df3f02020-08-24 13:29:22 +0200135 type = ((struct lysc_node_leaf *)node)->type;
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200136 rc = type->plugin->store(ctx ? ctx : node->module->ctx, type, value, value_len, 0, format, prefix_data,
Michal Vasko405cc9e2020-12-01 12:01:27 +0100137 LYD_HINT_SCHEMA, node, &storage, NULL, &err);
Radek Krejci73dead22019-07-11 16:46:16 +0200138 if (rc == LY_EINCOMPLETE) {
139 /* actually success since we do not provide the context tree and call validation with
140 * LY_TYPE_OPTS_INCOMPLETE_DATA */
141 rc = LY_SUCCESS;
142 } else if (rc && err) {
143 if (ctx) {
144 /* log only in case the ctx was provided as input parameter */
Radek Krejciddace2c2021-01-08 11:30:56 +0100145 LOG_LOCSET(NULL, NULL, err->path, NULL);
aPiecek4204b612021-05-03 09:06:16 +0200146 LOGVAL_ERRITEM(ctx, err);
Radek Krejciddace2c2021-01-08 11:30:56 +0100147 LOG_LOCBACK(0, 0, 1, 0);
Radek Krejci084289f2019-07-09 17:35:30 +0200148 }
Radek Krejci73dead22019-07-11 16:46:16 +0200149 ly_err_free(err);
Radek Krejci084289f2019-07-09 17:35:30 +0200150 }
151
Michal Vaskoba99a3e2020-08-18 15:50:05 +0200152 if (!rc) {
153 type->plugin->free(ctx ? ctx : node->module->ctx, &storage);
154 }
Radek Krejci084289f2019-07-09 17:35:30 +0200155 return rc;
156}
157
158API LY_ERR
Michal Vaskoaebbce02021-04-06 09:23:37 +0200159lyd_value_validate(const struct ly_ctx *ctx, const struct lysc_node *schema, const char *value, size_t value_len,
160 const struct lyd_node *ctx_node, const struct lysc_type **realtype, const char **canonical)
Radek Krejci084289f2019-07-09 17:35:30 +0200161{
162 LY_ERR rc;
163 struct ly_err_item *err = NULL;
164 struct lysc_type *type;
Michal Vasko3701af52020-08-03 14:29:38 +0200165 struct lyd_value val = {0};
Radek Krejci09c77442021-04-26 11:10:34 +0200166 ly_bool stored = 0, log = 1;
Radek Krejci084289f2019-07-09 17:35:30 +0200167
Michal Vaskoaebbce02021-04-06 09:23:37 +0200168 LY_CHECK_ARG_RET(ctx, schema, value, LY_EINVAL);
Radek Krejci084289f2019-07-09 17:35:30 +0200169
Radek Krejci09c77442021-04-26 11:10:34 +0200170 if (!ctx) {
171 ctx = schema->module->ctx;
172 log = 0;
173 }
Michal Vaskoaebbce02021-04-06 09:23:37 +0200174 type = ((struct lysc_node_leaf *)schema)->type;
175
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200176 /* store */
Radek Krejci09c77442021-04-26 11:10:34 +0200177 rc = type->plugin->store(ctx, type, value, value_len, 0, LY_VALUE_JSON, NULL,
Michal Vaskoaebbce02021-04-06 09:23:37 +0200178 LYD_HINT_DATA, schema, &val, NULL, &err);
179 if (!rc || (rc == LY_EINCOMPLETE)) {
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200180 stored = 1;
Michal Vaskoaebbce02021-04-06 09:23:37 +0200181 }
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200182
Michal Vaskoaebbce02021-04-06 09:23:37 +0200183 if (ctx_node && (rc == LY_EINCOMPLETE)) {
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200184 /* resolve */
Radek Krejci09c77442021-04-26 11:10:34 +0200185 rc = type->plugin->validate(ctx, type, ctx_node, ctx_node, &val, &err);
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200186 }
187
Michal Vaskoaebbce02021-04-06 09:23:37 +0200188 if (rc && (rc != LY_EINCOMPLETE) && err) {
Radek Krejci09c77442021-04-26 11:10:34 +0200189 if (log) {
Michal Vaskoaebbce02021-04-06 09:23:37 +0200190 /* log error */
191 if (err->path) {
192 LOG_LOCSET(NULL, NULL, err->path, NULL);
193 } else if (ctx_node) {
194 LOG_LOCSET(NULL, ctx_node, NULL, NULL);
195 } else {
196 LOG_LOCSET(schema, NULL, NULL, NULL);
Radek Krejci084289f2019-07-09 17:35:30 +0200197 }
aPiecek4204b612021-05-03 09:06:16 +0200198 LOGVAL_ERRITEM(ctx, err);
Michal Vaskoaebbce02021-04-06 09:23:37 +0200199 if (err->path) {
200 LOG_LOCBACK(0, 0, 1, 0);
201 } else if (ctx_node) {
202 LOG_LOCBACK(0, 1, 0, 0);
203 } else {
204 LOG_LOCBACK(1, 0, 0, 0);
205 }
Radek Krejci084289f2019-07-09 17:35:30 +0200206 }
Michal Vaskoaebbce02021-04-06 09:23:37 +0200207 ly_err_free(err);
Radek Krejci084289f2019-07-09 17:35:30 +0200208 }
209
Michal Vaskoaebbce02021-04-06 09:23:37 +0200210 if (!rc || (rc == LY_EINCOMPLETE)) {
211 if (realtype) {
212 /* return realtype */
213 if (val.realtype->basetype == LY_TYPE_UNION) {
214 *realtype = val.subvalue->value.realtype;
215 } else {
216 *realtype = val.realtype;
217 }
218 }
219
220 if (canonical) {
221 /* return canonical value */
Radek Krejci6d5ba0c2021-04-26 07:49:59 +0200222 lydict_insert(ctx, val.realtype->plugin->print(ctx, &val, LY_VALUE_CANON, NULL, NULL, NULL), 0, canonical);
Michal Vasko29134f82020-11-13 18:03:20 +0100223 }
Michal Vasko3701af52020-08-03 14:29:38 +0200224 }
225
Michal Vaskoaebbce02021-04-06 09:23:37 +0200226 if (stored) {
227 /* free value */
228 type->plugin->free(ctx ? ctx : schema->module->ctx, &val);
229 }
230 return rc;
Radek Krejci084289f2019-07-09 17:35:30 +0200231}
232
233API LY_ERR
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200234lyd_value_compare(const struct lyd_node_term *node, const char *value, size_t value_len)
Radek Krejci084289f2019-07-09 17:35:30 +0200235{
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200236 LY_ERR ret = LY_SUCCESS;
Radek Krejci084289f2019-07-09 17:35:30 +0200237 struct ly_ctx *ctx;
238 struct lysc_type *type;
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200239 struct lyd_value val = {0};
Radek Krejci084289f2019-07-09 17:35:30 +0200240
241 LY_CHECK_ARG_RET(node ? node->schema->module->ctx : NULL, node, value, LY_EINVAL);
242
243 ctx = node->schema->module->ctx;
Michal Vasko22df3f02020-08-24 13:29:22 +0200244 type = ((struct lysc_node_leaf *)node->schema)->type;
Radek Krejci084289f2019-07-09 17:35:30 +0200245
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200246 /* store the value */
Michal Vasko9e685082021-01-29 14:49:09 +0100247 LOG_LOCSET(node->schema, &node->node, NULL, NULL);
Radek Krejci8df109d2021-04-23 12:19:08 +0200248 ret = lyd_value_store(ctx, &val, type, value, value_len, NULL, LY_VALUE_JSON, NULL, LYD_HINT_DATA, node->schema, NULL);
Radek Krejciddace2c2021-01-08 11:30:56 +0100249 LOG_LOCBACK(1, 1, 0, 0);
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200250 LY_CHECK_RET(ret);
Radek Krejci084289f2019-07-09 17:35:30 +0200251
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200252 /* compare values */
253 ret = type->plugin->compare(&node->value, &val);
Radek Krejci084289f2019-07-09 17:35:30 +0200254
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200255 type->plugin->free(ctx, &val);
Radek Krejci084289f2019-07-09 17:35:30 +0200256 return ret;
257}
258
Radek Krejci19611252020-10-04 13:54:53 +0200259API ly_bool
260lyd_is_default(const struct lyd_node *node)
261{
262 const struct lysc_node_leaf *leaf;
263 const struct lysc_node_leaflist *llist;
264 const struct lyd_node_term *term;
265 LY_ARRAY_COUNT_TYPE u;
266
267 assert(node->schema->nodetype & LYD_NODE_TERM);
268 term = (const struct lyd_node_term *)node;
269
270 if (node->schema->nodetype == LYS_LEAF) {
271 leaf = (const struct lysc_node_leaf *)node->schema;
272 if (!leaf->dflt) {
273 return 0;
274 }
275
276 /* compare with the default value */
277 if (leaf->type->plugin->compare(&term->value, leaf->dflt)) {
278 return 0;
279 }
280 } else {
281 llist = (const struct lysc_node_leaflist *)node->schema;
282 if (!llist->dflts) {
283 return 0;
284 }
285
286 LY_ARRAY_FOR(llist->dflts, u) {
287 /* compare with each possible default value */
288 if (llist->type->plugin->compare(&term->value, llist->dflts[u])) {
289 return 0;
290 }
291 }
292 }
293
294 return 1;
295}
296
Radek Krejci7931b192020-06-25 17:05:03 +0200297static LYD_FORMAT
Michal Vasko63f3d842020-07-08 10:10:14 +0200298lyd_parse_get_format(const struct ly_in *in, LYD_FORMAT format)
Radek Krejcie7b95092019-05-15 11:03:07 +0200299{
Michal Vasko69730152020-10-09 16:30:07 +0200300 if (!format && (in->type == LY_IN_FILEPATH)) {
Radek Krejcie7b95092019-05-15 11:03:07 +0200301 /* unknown format - try to detect it from filename's suffix */
Radek Krejci7931b192020-06-25 17:05:03 +0200302 const char *path = in->method.fpath.filepath;
303 size_t len = strlen(path);
Radek Krejcie7b95092019-05-15 11:03:07 +0200304
305 /* ignore trailing whitespaces */
Michal Vaskod989ba02020-08-24 10:59:24 +0200306 for ( ; len > 0 && isspace(path[len - 1]); len--) {}
Radek Krejcie7b95092019-05-15 11:03:07 +0200307
Radek Krejcif13b87b2020-12-01 22:02:17 +0100308 if ((len >= LY_XML_SUFFIX_LEN + 1) &&
309 !strncmp(&path[len - LY_XML_SUFFIX_LEN], LY_XML_SUFFIX, LY_XML_SUFFIX_LEN)) {
Radek Krejcie7b95092019-05-15 11:03:07 +0200310 format = LYD_XML;
Radek Krejcif13b87b2020-12-01 22:02:17 +0100311 } else if ((len >= LY_JSON_SUFFIX_LEN + 1) &&
312 !strncmp(&path[len - LY_JSON_SUFFIX_LEN], LY_JSON_SUFFIX, LY_JSON_SUFFIX_LEN)) {
Radek Krejcie7b95092019-05-15 11:03:07 +0200313 format = LYD_JSON;
Radek Krejcif13b87b2020-12-01 22:02:17 +0100314 } else if ((len >= LY_LYB_SUFFIX_LEN + 1) &&
315 !strncmp(&path[len - LY_LYB_SUFFIX_LEN], LY_LYB_SUFFIX, LY_LYB_SUFFIX_LEN)) {
Radek Krejcie7b95092019-05-15 11:03:07 +0200316 format = LYD_LYB;
Radek Krejci7931b192020-06-25 17:05:03 +0200317 } /* else still unknown */
Radek Krejcie7b95092019-05-15 11:03:07 +0200318 }
319
Radek Krejci7931b192020-06-25 17:05:03 +0200320 return format;
321}
Radek Krejcie7b95092019-05-15 11:03:07 +0200322
Michal Vaskoe0665742021-02-11 11:08:44 +0100323/**
324 * @brief Parse YANG data into a data tree.
325 *
326 * @param[in] ctx libyang context.
Radek Krejcif16e2542021-02-17 15:39:23 +0100327 * @param[in] ext Optional extenion instance to parse data following the schema tree specified in the extension instance
Michal Vaskoe0665742021-02-11 11:08:44 +0100328 * @param[in] parent Parent to connect the parsed nodes to, if any.
329 * @param[in,out] first_p Pointer to the first top-level parsed node, used only if @p parent is NULL.
330 * @param[in] in Input handle to read the input from.
331 * @param[in] format Expected format of the data in @p in.
332 * @param[in] parse_opts Options for parser.
333 * @param[in] val_opts Options for validation.
334 * @param[out] op Optional pointer to the parsed operation, if any.
335 * @return LY_ERR value.
336 */
337static LY_ERR
Radek Krejcif16e2542021-02-17 15:39:23 +0100338lyd_parse(const struct ly_ctx *ctx, const struct lysc_ext_instance *ext, struct lyd_node *parent, struct lyd_node **first_p,
339 struct ly_in *in, LYD_FORMAT format, uint32_t parse_opts, uint32_t val_opts, struct lyd_node **op)
Radek Krejci7931b192020-06-25 17:05:03 +0200340{
Michal Vaskoe0665742021-02-11 11:08:44 +0100341 LY_ERR rc = LY_SUCCESS;
Radek Krejci1798aae2020-07-14 13:26:06 +0200342 struct lyd_ctx *lydctx = NULL;
Michal Vaskoe0665742021-02-11 11:08:44 +0100343 struct ly_set parsed = {0};
344 struct lyd_node *first;
345 uint32_t i;
Radek Krejci1798aae2020-07-14 13:26:06 +0200346
Michal Vaskoe0665742021-02-11 11:08:44 +0100347 assert(ctx && (parent || first_p));
Radek Krejci7931b192020-06-25 17:05:03 +0200348
349 format = lyd_parse_get_format(in, format);
Michal Vaskoe0665742021-02-11 11:08:44 +0100350 if (first_p) {
351 *first_p = NULL;
352 }
Radek Krejci1798aae2020-07-14 13:26:06 +0200353
Michal Vasko63f3d842020-07-08 10:10:14 +0200354 /* remember input position */
355 in->func_start = in->current;
Radek Krejci7931b192020-06-25 17:05:03 +0200356
Michal Vaskoe0665742021-02-11 11:08:44 +0100357 /* parse the data */
Radek Krejci7931b192020-06-25 17:05:03 +0200358 switch (format) {
359 case LYD_XML:
Radek Krejcif16e2542021-02-17 15:39:23 +0100360 rc = lyd_parse_xml(ctx, ext, parent, first_p, in, parse_opts, val_opts, LYD_TYPE_DATA_YANG, NULL, &parsed, &lydctx);
Radek Krejci1798aae2020-07-14 13:26:06 +0200361 break;
Radek Krejci7931b192020-06-25 17:05:03 +0200362 case LYD_JSON:
Radek Krejcif16e2542021-02-17 15:39:23 +0100363 rc = lyd_parse_json(ctx, ext, parent, first_p, in, parse_opts, val_opts, LYD_TYPE_DATA_YANG, &parsed, &lydctx);
Radek Krejci1798aae2020-07-14 13:26:06 +0200364 break;
Radek Krejci7931b192020-06-25 17:05:03 +0200365 case LYD_LYB:
Radek Krejcif16e2542021-02-17 15:39:23 +0100366 rc = lyd_parse_lyb(ctx, ext, parent, first_p, in, parse_opts, val_opts, LYD_TYPE_DATA_YANG, &parsed, &lydctx);
Radek Krejci1798aae2020-07-14 13:26:06 +0200367 break;
Michal Vaskoc8a230d2020-08-14 12:17:10 +0200368 case LYD_UNKNOWN:
Michal Vaskod74978f2021-02-12 11:59:36 +0100369 LOGARG(ctx, format);
370 rc = LY_EINVAL;
Michal Vaskoe0665742021-02-11 11:08:44 +0100371 break;
372 }
373 LY_CHECK_GOTO(rc, cleanup);
374
375 if (parent) {
376 /* get first top-level sibling */
377 for (first = parent; first->parent; first = lyd_parent(first)) {}
378 first = lyd_first_sibling(first);
379 first_p = &first;
Radek Krejci7931b192020-06-25 17:05:03 +0200380 }
381
Michal Vaskoe0665742021-02-11 11:08:44 +0100382 if (!(parse_opts & LYD_PARSE_ONLY)) {
383 /* validate data */
Radek Krejci4f2e3e52021-03-30 14:20:28 +0200384 rc = lyd_validate(first_p, NULL, ctx, val_opts, 0, &lydctx->node_when, &lydctx->node_exts, &lydctx->node_types,
Michal Vaskoe0665742021-02-11 11:08:44 +0100385 &lydctx->meta_types, NULL);
386 LY_CHECK_GOTO(rc, cleanup);
387 }
Radek Krejci7931b192020-06-25 17:05:03 +0200388
Michal Vaskoe0665742021-02-11 11:08:44 +0100389 /* set the operation node */
390 if (op) {
391 *op = lydctx->op_node;
Radek Krejci1798aae2020-07-14 13:26:06 +0200392 }
393
394cleanup:
Michal Vaskoe0665742021-02-11 11:08:44 +0100395 if (lydctx) {
396 lydctx->free(lydctx);
Radek Krejci1798aae2020-07-14 13:26:06 +0200397 }
Michal Vaskoe0665742021-02-11 11:08:44 +0100398 if (rc) {
399 if (parent) {
400 /* free all the parsed subtrees */
401 for (i = 0; i < parsed.count; ++i) {
402 lyd_free_tree(parsed.dnodes[i]);
403 }
404 } else {
405 /* free everything */
406 lyd_free_all(*first_p);
407 *first_p = NULL;
408 }
409 }
410 ly_set_erase(&parsed, NULL);
411 return rc;
Radek Krejci7931b192020-06-25 17:05:03 +0200412}
413
414API LY_ERR
Radek Krejcif16e2542021-02-17 15:39:23 +0100415lyd_parse_ext_data(const struct lysc_ext_instance *ext, struct lyd_node *parent, struct ly_in *in, LYD_FORMAT format,
416 uint32_t parse_options, uint32_t validate_options, struct lyd_node **tree)
417{
418 const struct ly_ctx *ctx = ext ? ext->module->ctx : NULL;
419
420 LY_CHECK_ARG_RET(ctx, ext, in, parent || tree, LY_EINVAL);
421 LY_CHECK_ARG_RET(ctx, !(parse_options & ~LYD_PARSE_OPTS_MASK), LY_EINVAL);
422 LY_CHECK_ARG_RET(ctx, !(validate_options & ~LYD_VALIDATE_OPTS_MASK), LY_EINVAL);
423
424 return lyd_parse(ctx, ext, parent, tree, in, format, parse_options, validate_options, NULL);
425}
426
427API LY_ERR
Michal Vaskoe0665742021-02-11 11:08:44 +0100428lyd_parse_data(const struct ly_ctx *ctx, struct lyd_node *parent, struct ly_in *in, LYD_FORMAT format,
429 uint32_t parse_options, uint32_t validate_options, struct lyd_node **tree)
430{
431 LY_CHECK_ARG_RET(ctx, ctx, in, parent || tree, LY_EINVAL);
432 LY_CHECK_ARG_RET(ctx, !(parse_options & ~LYD_PARSE_OPTS_MASK), LY_EINVAL);
433 LY_CHECK_ARG_RET(ctx, !(validate_options & ~LYD_VALIDATE_OPTS_MASK), LY_EINVAL);
434
Radek Krejcif16e2542021-02-17 15:39:23 +0100435 return lyd_parse(ctx, NULL, parent, tree, in, format, parse_options, validate_options, NULL);
Michal Vaskoe0665742021-02-11 11:08:44 +0100436}
437
438API LY_ERR
439lyd_parse_data_mem(const struct ly_ctx *ctx, const char *data, LYD_FORMAT format, uint32_t parse_options,
440 uint32_t validate_options, struct lyd_node **tree)
Radek Krejci7931b192020-06-25 17:05:03 +0200441{
442 LY_ERR ret;
443 struct ly_in *in;
444
445 LY_CHECK_RET(ly_in_new_memory(data, &in));
Michal Vaskoe0665742021-02-11 11:08:44 +0100446 ret = lyd_parse_data(ctx, NULL, in, format, parse_options, validate_options, tree);
Radek Krejci7931b192020-06-25 17:05:03 +0200447
448 ly_in_free(in, 0);
449 return ret;
450}
451
452API LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +0200453lyd_parse_data_fd(const struct ly_ctx *ctx, int fd, LYD_FORMAT format, uint32_t parse_options, uint32_t validate_options,
Radek Krejci0f969882020-08-21 16:56:47 +0200454 struct lyd_node **tree)
Radek Krejci7931b192020-06-25 17:05:03 +0200455{
456 LY_ERR ret;
457 struct ly_in *in;
458
459 LY_CHECK_RET(ly_in_new_fd(fd, &in));
Michal Vaskoe0665742021-02-11 11:08:44 +0100460 ret = lyd_parse_data(ctx, NULL, in, format, parse_options, validate_options, tree);
Radek Krejci7931b192020-06-25 17:05:03 +0200461
462 ly_in_free(in, 0);
463 return ret;
464}
465
466API LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +0200467lyd_parse_data_path(const struct ly_ctx *ctx, const char *path, LYD_FORMAT format, uint32_t parse_options,
468 uint32_t validate_options, struct lyd_node **tree)
Radek Krejci7931b192020-06-25 17:05:03 +0200469{
470 LY_ERR ret;
471 struct ly_in *in;
472
473 LY_CHECK_RET(ly_in_new_filepath(path, 0, &in));
Michal Vaskoe0665742021-02-11 11:08:44 +0100474 ret = lyd_parse_data(ctx, NULL, in, format, parse_options, validate_options, tree);
Radek Krejci7931b192020-06-25 17:05:03 +0200475
476 ly_in_free(in, 0);
477 return ret;
478}
479
Radek Krejcif16e2542021-02-17 15:39:23 +0100480/**
481 * @brief Parse YANG data into an operation data tree, in case the extension instance is specified, keep the searching
482 * for schema nodes locked inside the extension instance.
483 *
484 * At least one of @p parent, @p tree, or @p op must always be set.
485 *
486 * Specific @p data_type values have different parameter meaning as follows:
487 * - ::LYD_TYPE_RPC_NETCONF:
488 * - @p parent - must be NULL, the whole RPC is expected;
489 * - @p format - must be ::LYD_XML, NETCONF supports only this format;
490 * - @p tree - must be provided, all the NETCONF-specific XML envelopes will be returned here as
491 * a separate opaque data tree, even if the function fails, this may be returned;
492 * - @p op - must be provided, the RPC/action data tree itself will be returned here, pointing to the operation;
493 *
494 * - ::LYD_TYPE_NOTIF_NETCONF:
495 * - @p parent - must be NULL, the whole notification is expected;
496 * - @p format - must be ::LYD_XML, NETCONF supports only this format;
497 * - @p tree - must be provided, all the NETCONF-specific XML envelopes will be returned here as
498 * a separate opaque data tree, even if the function fails, this may be returned;
499 * - @p op - must be provided, the notification data tree itself will be returned here, pointing to the operation;
500 *
501 * - ::LYD_TYPE_REPLY_NETCONF:
502 * - @p parent - must be set, pointing to the invoked RPC operation (RPC or action) node;
503 * - @p format - must be ::LYD_XML, NETCONF supports only this format;
504 * - @p tree - must be provided, all the NETCONF-specific XML envelopes will be returned here as
505 * a separate opaque data tree, even if the function fails, this may be returned;
506 * - @p op - must be NULL, the reply is appended to the RPC;
507 * Note that there are 3 kinds of NETCONF replies - ok, error, and data. Only data reply appends any nodes to the RPC.
508 *
509 * @param[in] ctx libyang context.
510 * @param[in] ext Extension instance providing the specific schema tree to match with the data being parsed.
511 * @param[in] parent Optional parent to connect the parsed nodes to.
512 * @param[in] in Input handle to read the input from.
513 * @param[in] format Expected format of the data in @p in.
514 * @param[in] data_type Expected operation to parse (@ref datatype).
515 * @param[out] tree Optional full parsed data tree. If @p parent is set, set to NULL.
516 * @param[out] op Optional parsed operation node.
517 * @return LY_ERR value.
518 * @return LY_ENOT if @p data_type is a NETCONF message and the root XML element is not the expected one.
519 */
520static LY_ERR
521lyd_parse_op_(const struct ly_ctx *ctx, const struct lysc_ext_instance *ext, struct lyd_node *parent,
522 struct ly_in *in, LYD_FORMAT format, enum lyd_type data_type, struct lyd_node **tree, struct lyd_node **op)
Radek Krejci7931b192020-06-25 17:05:03 +0200523{
Michal Vaskoe0665742021-02-11 11:08:44 +0100524 LY_ERR rc = LY_SUCCESS;
525 struct lyd_ctx *lydctx = NULL;
526 struct ly_set parsed = {0};
527 struct lyd_node *first = NULL, *envp = NULL;
528 uint32_t i, parse_opts, val_opts;
Radek Krejci7931b192020-06-25 17:05:03 +0200529
Michal Vasko27fb0262021-02-23 09:42:01 +0100530 if (!ctx) {
531 ctx = LYD_CTX(parent);
532 }
Radek Krejci1798aae2020-07-14 13:26:06 +0200533 if (tree) {
534 *tree = NULL;
535 }
536 if (op) {
537 *op = NULL;
538 }
539
Radek Krejci7931b192020-06-25 17:05:03 +0200540 format = lyd_parse_get_format(in, format);
Radek Krejci7931b192020-06-25 17:05:03 +0200541
Michal Vasko63f3d842020-07-08 10:10:14 +0200542 /* remember input position */
543 in->func_start = in->current;
544
Michal Vaskoe0665742021-02-11 11:08:44 +0100545 /* check params based on the data type */
Michal Vasko1e4c68e2021-02-18 15:03:01 +0100546 if ((data_type == LYD_TYPE_RPC_NETCONF) || (data_type == LYD_TYPE_NOTIF_NETCONF)) {
Michal Vaskoe0665742021-02-11 11:08:44 +0100547 LY_CHECK_ARG_RET(ctx, format == LYD_XML, !parent, tree, op, LY_EINVAL);
Michal Vasko1e4c68e2021-02-18 15:03:01 +0100548 } else if (data_type == LYD_TYPE_REPLY_NETCONF) {
549 LY_CHECK_ARG_RET(ctx, format == LYD_XML, parent, parent->schema->nodetype & (LYS_RPC | LYS_ACTION), tree, !op,
550 LY_EINVAL);
Michal Vaskoe0665742021-02-11 11:08:44 +0100551 }
552 parse_opts = LYD_PARSE_ONLY | LYD_PARSE_STRICT;
553 val_opts = 0;
554
555 /* parse the data */
Radek Krejci7931b192020-06-25 17:05:03 +0200556 switch (format) {
557 case LYD_XML:
Radek Krejcif16e2542021-02-17 15:39:23 +0100558 rc = lyd_parse_xml(ctx, ext, parent, &first, in, parse_opts, val_opts, data_type, &envp, &parsed, &lydctx);
Michal Vasko299d5d12021-02-16 16:36:37 +0100559 if (rc && envp) {
560 /* special situation when the envelopes were parsed successfully */
561 if (tree) {
562 *tree = envp;
563 }
564 ly_set_erase(&parsed, NULL);
565 return rc;
566 }
Michal Vaskoe0665742021-02-11 11:08:44 +0100567 break;
Radek Krejci7931b192020-06-25 17:05:03 +0200568 case LYD_JSON:
Radek Krejcif16e2542021-02-17 15:39:23 +0100569 rc = lyd_parse_json(ctx, ext, parent, &first, in, parse_opts, val_opts, data_type, &parsed, &lydctx);
Michal Vaskoe0665742021-02-11 11:08:44 +0100570 break;
Radek Krejci7931b192020-06-25 17:05:03 +0200571 case LYD_LYB:
Radek Krejcif16e2542021-02-17 15:39:23 +0100572 rc = lyd_parse_lyb(ctx, ext, parent, &first, in, parse_opts, val_opts, data_type, &parsed, &lydctx);
Michal Vaskoe0665742021-02-11 11:08:44 +0100573 break;
Michal Vaskoc8a230d2020-08-14 12:17:10 +0200574 case LYD_UNKNOWN:
Michal Vaskod74978f2021-02-12 11:59:36 +0100575 LOGARG(ctx, format);
576 rc = LY_EINVAL;
Michal Vaskoc8a230d2020-08-14 12:17:10 +0200577 break;
Radek Krejci7931b192020-06-25 17:05:03 +0200578 }
Michal Vaskoe0665742021-02-11 11:08:44 +0100579 LY_CHECK_GOTO(rc, cleanup);
Radek Krejci7931b192020-06-25 17:05:03 +0200580
Michal Vaskoe0665742021-02-11 11:08:44 +0100581 /* set out params correctly */
582 if (tree) {
583 if (envp) {
584 /* special out param meaning */
585 *tree = envp;
586 } else {
587 *tree = parent ? NULL : first;
588 }
589 }
590 if (op) {
591 *op = lydctx->op_node;
592 }
593
594cleanup:
595 if (lydctx) {
596 lydctx->free(lydctx);
597 }
598 if (rc) {
599 if (parent) {
600 /* free all the parsed subtrees */
601 for (i = 0; i < parsed.count; ++i) {
602 lyd_free_tree(parsed.dnodes[i]);
603 }
604 } else {
605 /* free everything (cannot occur in the current code, a safety) */
606 lyd_free_all(first);
607 if (tree) {
608 *tree = NULL;
609 }
610 if (op) {
611 *op = NULL;
612 }
613 }
614 }
615 ly_set_erase(&parsed, NULL);
616 return rc;
Radek Krejcie7b95092019-05-15 11:03:07 +0200617}
Radek Krejci084289f2019-07-09 17:35:30 +0200618
Radek Krejcif16e2542021-02-17 15:39:23 +0100619API LY_ERR
620lyd_parse_op(const struct ly_ctx *ctx, struct lyd_node *parent, struct ly_in *in, LYD_FORMAT format,
621 enum lyd_type data_type, struct lyd_node **tree, struct lyd_node **op)
622{
623 LY_CHECK_ARG_RET(ctx, ctx || parent, in, data_type, parent || tree || op, LY_EINVAL);
624
625 return lyd_parse_op_(ctx, NULL, parent, in, format, data_type, tree, op);
626}
627
628API LY_ERR
629lyd_parse_ext_op(const struct lysc_ext_instance *ext, struct lyd_node *parent, struct ly_in *in, LYD_FORMAT format,
630 enum lyd_type data_type, struct lyd_node **tree, struct lyd_node **op)
631{
632 const struct ly_ctx *ctx = ext ? ext->module->ctx : NULL;
633
634 LY_CHECK_ARG_RET(ctx, ext, in, data_type, parent || tree || op, LY_EINVAL);
635
636 return lyd_parse_op_(ctx, ext, parent, in, format, data_type, tree, op);
637}
638
Michal Vasko90932a92020-02-12 14:33:03 +0100639LY_ERR
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200640lyd_create_term(const struct lysc_node *schema, const char *value, size_t value_len, ly_bool *dynamic,
Radek Krejci8df109d2021-04-23 12:19:08 +0200641 LY_VALUE_FORMAT format, void *prefix_data, uint32_t hints, ly_bool *incomplete, struct lyd_node **node)
Michal Vasko90932a92020-02-12 14:33:03 +0100642{
643 LY_ERR ret;
644 struct lyd_node_term *term;
645
Michal Vasko9b368d32020-02-14 13:53:31 +0100646 assert(schema->nodetype & LYD_NODE_TERM);
647
Michal Vasko90932a92020-02-12 14:33:03 +0100648 term = calloc(1, sizeof *term);
649 LY_CHECK_ERR_RET(!term, LOGMEM(schema->module->ctx), LY_EMEM);
650
651 term->schema = schema;
Michal Vasko9e685082021-01-29 14:49:09 +0100652 term->prev = &term->node;
Michal Vasko9b368d32020-02-14 13:53:31 +0100653 term->flags = LYD_NEW;
Michal Vasko90932a92020-02-12 14:33:03 +0100654
Radek Krejciddace2c2021-01-08 11:30:56 +0100655 LOG_LOCSET(schema, NULL, NULL, NULL);
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200656 ret = lyd_value_store(schema->module->ctx, &term->value, ((struct lysc_node_leaf *)term->schema)->type, value,
Radek Krejci2efc45b2020-12-22 16:25:44 +0100657 value_len, dynamic, format, prefix_data, hints, schema, incomplete);
Radek Krejciddace2c2021-01-08 11:30:56 +0100658 LOG_LOCBACK(1, 0, 0, 0);
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200659 LY_CHECK_ERR_RET(ret, free(term), ret);
Michal Vasko9e685082021-01-29 14:49:09 +0100660 lyd_hash(&term->node);
Michal Vasko9b368d32020-02-14 13:53:31 +0100661
Michal Vasko9e685082021-01-29 14:49:09 +0100662 *node = &term->node;
Michal Vasko9b368d32020-02-14 13:53:31 +0100663 return ret;
664}
665
666LY_ERR
667lyd_create_term2(const struct lysc_node *schema, const struct lyd_value *val, struct lyd_node **node)
668{
669 LY_ERR ret;
670 struct lyd_node_term *term;
671 struct lysc_type *type;
672
673 assert(schema->nodetype & LYD_NODE_TERM);
Radek Krejci224d4b42021-04-23 13:54:59 +0200674 assert(val && val->realtype);
Michal Vasko9b368d32020-02-14 13:53:31 +0100675
676 term = calloc(1, sizeof *term);
677 LY_CHECK_ERR_RET(!term, LOGMEM(schema->module->ctx), LY_EMEM);
678
679 term->schema = schema;
Michal Vasko9e685082021-01-29 14:49:09 +0100680 term->prev = &term->node;
Michal Vasko9b368d32020-02-14 13:53:31 +0100681 term->flags = LYD_NEW;
682
683 type = ((struct lysc_node_leaf *)schema)->type;
684 ret = type->plugin->duplicate(schema->module->ctx, val, &term->value);
685 if (ret) {
686 LOGERR(schema->module->ctx, ret, "Value duplication failed.");
687 free(term);
688 return ret;
689 }
Michal Vasko9e685082021-01-29 14:49:09 +0100690 lyd_hash(&term->node);
Michal Vasko90932a92020-02-12 14:33:03 +0100691
Michal Vasko9e685082021-01-29 14:49:09 +0100692 *node = &term->node;
Michal Vasko90932a92020-02-12 14:33:03 +0100693 return ret;
694}
695
696LY_ERR
697lyd_create_inner(const struct lysc_node *schema, struct lyd_node **node)
698{
699 struct lyd_node_inner *in;
700
Michal Vasko9b368d32020-02-14 13:53:31 +0100701 assert(schema->nodetype & LYD_NODE_INNER);
702
Michal Vasko90932a92020-02-12 14:33:03 +0100703 in = calloc(1, sizeof *in);
704 LY_CHECK_ERR_RET(!in, LOGMEM(schema->module->ctx), LY_EMEM);
705
706 in->schema = schema;
Michal Vasko9e685082021-01-29 14:49:09 +0100707 in->prev = &in->node;
Michal Vasko9b368d32020-02-14 13:53:31 +0100708 in->flags = LYD_NEW;
Michal Vasko3383be72020-11-03 17:15:31 +0100709 if ((schema->nodetype == LYS_CONTAINER) && !(schema->flags & LYS_PRESENCE)) {
710 in->flags |= LYD_DEFAULT;
711 }
Michal Vasko90932a92020-02-12 14:33:03 +0100712
Michal Vasko9b368d32020-02-14 13:53:31 +0100713 /* do not hash list with keys, we need them for the hash */
714 if ((schema->nodetype != LYS_LIST) || (schema->flags & LYS_KEYLESS)) {
Michal Vasko9e685082021-01-29 14:49:09 +0100715 lyd_hash(&in->node);
Michal Vasko9b368d32020-02-14 13:53:31 +0100716 }
Michal Vasko90932a92020-02-12 14:33:03 +0100717
Michal Vasko9e685082021-01-29 14:49:09 +0100718 *node = &in->node;
Michal Vasko90932a92020-02-12 14:33:03 +0100719 return LY_SUCCESS;
720}
721
Michal Vasko90932a92020-02-12 14:33:03 +0100722LY_ERR
Michal Vasko004d3152020-06-11 19:59:22 +0200723lyd_create_list(const struct lysc_node *schema, const struct ly_path_predicate *predicates, struct lyd_node **node)
Michal Vasko90932a92020-02-12 14:33:03 +0100724{
725 LY_ERR ret = LY_SUCCESS;
Michal Vasko90932a92020-02-12 14:33:03 +0100726 struct lyd_node *list = NULL, *key;
Michal Vaskofd69e1d2020-07-03 11:57:17 +0200727 LY_ARRAY_COUNT_TYPE u;
Michal Vasko90932a92020-02-12 14:33:03 +0100728
Michal Vasko004d3152020-06-11 19:59:22 +0200729 assert((schema->nodetype == LYS_LIST) && !(schema->flags & LYS_KEYLESS));
Michal Vasko90932a92020-02-12 14:33:03 +0100730
731 /* create list */
732 LY_CHECK_GOTO(ret = lyd_create_inner(schema, &list), cleanup);
733
Radek Krejciddace2c2021-01-08 11:30:56 +0100734 LOG_LOCSET(NULL, list, NULL, NULL);
Radek Krejci2efc45b2020-12-22 16:25:44 +0100735
Michal Vasko90932a92020-02-12 14:33:03 +0100736 /* create and insert all the keys */
Michal Vasko004d3152020-06-11 19:59:22 +0200737 LY_ARRAY_FOR(predicates, u) {
738 LY_CHECK_GOTO(ret = lyd_create_term2(predicates[u].key, &predicates[u].value, &key), cleanup);
Michal Vasko90932a92020-02-12 14:33:03 +0100739 lyd_insert_node(list, NULL, key);
740 }
741
Michal Vasko9b368d32020-02-14 13:53:31 +0100742 /* hash having all the keys */
743 lyd_hash(list);
744
Michal Vasko90932a92020-02-12 14:33:03 +0100745 /* success */
746 *node = list;
747 list = NULL;
748
749cleanup:
Radek Krejciddace2c2021-01-08 11:30:56 +0100750 LOG_LOCBACK(0, 1, 0, 0);
Michal Vasko90932a92020-02-12 14:33:03 +0100751 lyd_free_tree(list);
Michal Vasko004d3152020-06-11 19:59:22 +0200752 return ret;
753}
754
755static LY_ERR
756lyd_create_list2(const struct lysc_node *schema, const char *keys, size_t keys_len, struct lyd_node **node)
757{
758 LY_ERR ret = LY_SUCCESS;
759 struct lyxp_expr *expr = NULL;
760 uint16_t exp_idx = 0;
761 enum ly_path_pred_type pred_type = 0;
762 struct ly_path_predicate *predicates = NULL;
763
Radek Krejciddace2c2021-01-08 11:30:56 +0100764 LOG_LOCSET(schema, NULL, NULL, NULL);
Radek Krejci2efc45b2020-12-22 16:25:44 +0100765
Michal Vasko004d3152020-06-11 19:59:22 +0200766 /* parse keys */
Michal Vasko6b26e742020-07-17 15:02:10 +0200767 LY_CHECK_GOTO(ret = ly_path_parse_predicate(schema->module->ctx, NULL, keys, keys_len, LY_PATH_PREFIX_OPTIONAL,
Michal Vasko69730152020-10-09 16:30:07 +0200768 LY_PATH_PRED_KEYS, &expr), cleanup);
Michal Vasko004d3152020-06-11 19:59:22 +0200769
770 /* compile them */
Radek Krejci8df109d2021-04-23 12:19:08 +0200771 LY_CHECK_GOTO(ret = ly_path_compile_predicate(schema->module->ctx, NULL, NULL, schema, expr, &exp_idx, LY_VALUE_JSON,
Michal Vasko5d24f6c2020-10-13 13:49:06 +0200772 NULL, &predicates, &pred_type), cleanup);
Michal Vasko004d3152020-06-11 19:59:22 +0200773
774 /* create the list node */
775 LY_CHECK_GOTO(ret = lyd_create_list(schema, predicates, node), cleanup);
776
777cleanup:
Radek Krejciddace2c2021-01-08 11:30:56 +0100778 LOG_LOCBACK(1, 0, 0, 0);
Michal Vasko004d3152020-06-11 19:59:22 +0200779 lyxp_expr_free(schema->module->ctx, expr);
Michal Vaskof7e16e22020-10-21 09:24:39 +0200780 ly_path_predicates_free(schema->module->ctx, pred_type, predicates);
Michal Vasko90932a92020-02-12 14:33:03 +0100781 return ret;
782}
783
784LY_ERR
Michal Vasko366a4a12020-12-04 16:23:57 +0100785lyd_create_any(const struct lysc_node *schema, const void *value, LYD_ANYDATA_VALUETYPE value_type, ly_bool use_value,
786 struct lyd_node **node)
Michal Vasko90932a92020-02-12 14:33:03 +0100787{
Michal Vasko366a4a12020-12-04 16:23:57 +0100788 LY_ERR ret;
Michal Vasko90932a92020-02-12 14:33:03 +0100789 struct lyd_node_any *any;
Michal Vasko366a4a12020-12-04 16:23:57 +0100790 union lyd_any_value any_val;
Michal Vasko90932a92020-02-12 14:33:03 +0100791
Michal Vasko9b368d32020-02-14 13:53:31 +0100792 assert(schema->nodetype & LYD_NODE_ANY);
793
Michal Vasko90932a92020-02-12 14:33:03 +0100794 any = calloc(1, sizeof *any);
795 LY_CHECK_ERR_RET(!any, LOGMEM(schema->module->ctx), LY_EMEM);
796
797 any->schema = schema;
Michal Vasko9e685082021-01-29 14:49:09 +0100798 any->prev = &any->node;
Michal Vasko9b368d32020-02-14 13:53:31 +0100799 any->flags = LYD_NEW;
Michal Vasko90932a92020-02-12 14:33:03 +0100800
Radek Krejci1798aae2020-07-14 13:26:06 +0200801 /* TODO: convert XML/JSON strings into a opaq data tree */
Michal Vasko366a4a12020-12-04 16:23:57 +0100802
803 if (use_value) {
804 any->value.str = value;
805 any->value_type = value_type;
806 } else {
807 any_val.str = value;
Michal Vasko9e685082021-01-29 14:49:09 +0100808 ret = lyd_any_copy_value(&any->node, &any_val, value_type);
Michal Vasko366a4a12020-12-04 16:23:57 +0100809 LY_CHECK_ERR_RET(ret, free(any), ret);
810 }
Michal Vasko9e685082021-01-29 14:49:09 +0100811 lyd_hash(&any->node);
Michal Vasko90932a92020-02-12 14:33:03 +0100812
Michal Vasko9e685082021-01-29 14:49:09 +0100813 *node = &any->node;
Michal Vasko90932a92020-02-12 14:33:03 +0100814 return LY_SUCCESS;
815}
816
Michal Vasko52927e22020-03-16 17:26:14 +0100817LY_ERR
Michal Vasko501af032020-11-11 20:27:44 +0100818lyd_create_opaq(const struct ly_ctx *ctx, const char *name, size_t name_len, const char *prefix, size_t pref_len,
819 const char *module_key, size_t module_key_len, const char *value, size_t value_len, ly_bool *dynamic,
Radek Krejci8df109d2021-04-23 12:19:08 +0200820 LY_VALUE_FORMAT format, void *val_prefix_data, uint32_t hints, struct lyd_node **node)
Michal Vasko52927e22020-03-16 17:26:14 +0100821{
Radek Krejci011e4aa2020-09-04 15:22:31 +0200822 LY_ERR ret = LY_SUCCESS;
Michal Vasko52927e22020-03-16 17:26:14 +0100823 struct lyd_node_opaq *opaq;
824
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200825 assert(ctx && name && name_len && format);
Michal Vasko52927e22020-03-16 17:26:14 +0100826
Michal Vasko4cd0a602021-05-31 11:11:58 +0200827 if (!value_len && (!dynamic || !*dynamic)) {
Michal Vasko52927e22020-03-16 17:26:14 +0100828 value = "";
829 }
830
831 opaq = calloc(1, sizeof *opaq);
Michal Vasko501af032020-11-11 20:27:44 +0100832 LY_CHECK_ERR_GOTO(!opaq, LOGMEM(ctx); ret = LY_EMEM, finish);
Michal Vasko52927e22020-03-16 17:26:14 +0100833
Michal Vasko9e685082021-01-29 14:49:09 +0100834 opaq->prev = &opaq->node;
Michal Vaskoad92b672020-11-12 13:11:31 +0100835 LY_CHECK_GOTO(ret = lydict_insert(ctx, name, name_len, &opaq->name.name), finish);
Radek Krejci011e4aa2020-09-04 15:22:31 +0200836
Michal Vasko52927e22020-03-16 17:26:14 +0100837 if (pref_len) {
Michal Vaskoad92b672020-11-12 13:11:31 +0100838 LY_CHECK_GOTO(ret = lydict_insert(ctx, prefix, pref_len, &opaq->name.prefix), finish);
Michal Vasko52927e22020-03-16 17:26:14 +0100839 }
Radek Krejci1798aae2020-07-14 13:26:06 +0200840 if (module_key_len) {
Michal Vaskoad92b672020-11-12 13:11:31 +0100841 LY_CHECK_GOTO(ret = lydict_insert(ctx, module_key, module_key_len, &opaq->name.module_ns), finish);
Radek Krejci1798aae2020-07-14 13:26:06 +0200842 }
Michal Vasko52927e22020-03-16 17:26:14 +0100843 if (dynamic && *dynamic) {
Radek Krejci011e4aa2020-09-04 15:22:31 +0200844 LY_CHECK_GOTO(ret = lydict_insert_zc(ctx, (char *)value, &opaq->value), finish);
Michal Vasko52927e22020-03-16 17:26:14 +0100845 *dynamic = 0;
846 } else {
Radek Krejci011e4aa2020-09-04 15:22:31 +0200847 LY_CHECK_GOTO(ret = lydict_insert(ctx, value, value_len, &opaq->value), finish);
Michal Vasko52927e22020-03-16 17:26:14 +0100848 }
Michal Vasko501af032020-11-11 20:27:44 +0100849
850 opaq->format = format;
851 opaq->val_prefix_data = val_prefix_data;
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200852 opaq->hints = hints;
Michal Vasko52927e22020-03-16 17:26:14 +0100853 opaq->ctx = ctx;
854
Radek Krejci011e4aa2020-09-04 15:22:31 +0200855finish:
856 if (ret) {
Michal Vasko9e685082021-01-29 14:49:09 +0100857 lyd_free_tree(&opaq->node);
Michal Vasko501af032020-11-11 20:27:44 +0100858 ly_free_prefix_data(format, val_prefix_data);
Radek Krejci011e4aa2020-09-04 15:22:31 +0200859 } else {
Michal Vasko9e685082021-01-29 14:49:09 +0100860 *node = &opaq->node;
Radek Krejci011e4aa2020-09-04 15:22:31 +0200861 }
862 return ret;
Michal Vasko52927e22020-03-16 17:26:14 +0100863}
864
Michal Vasko3a41dff2020-07-15 14:30:28 +0200865API LY_ERR
Michal Vasko65243892020-12-04 16:26:21 +0100866lyd_new_inner(struct lyd_node *parent, const struct lys_module *module, const char *name, ly_bool output,
867 struct lyd_node **node)
Michal Vasko013a8182020-03-03 10:46:53 +0100868{
869 struct lyd_node *ret = NULL;
870 const struct lysc_node *schema;
871 struct ly_ctx *ctx = parent ? parent->schema->module->ctx : (module ? module->ctx : NULL);
872
Michal Vasko6027eb92020-07-15 16:37:30 +0200873 LY_CHECK_ARG_RET(ctx, parent || module, parent || node, name, LY_EINVAL);
Michal Vasko013a8182020-03-03 10:46:53 +0100874
Michal Vaskof03ed032020-03-04 13:31:44 +0100875 if (!module) {
876 module = parent->schema->module;
877 }
878
Michal Vasko3a41dff2020-07-15 14:30:28 +0200879 schema = lys_find_child(parent ? parent->schema : NULL, module, name, 0,
Radek Krejci41ac9942020-11-02 14:47:56 +0100880 LYS_CONTAINER | LYS_NOTIF | LYS_RPC | LYS_ACTION, output ? LYS_GETNEXT_OUTPUT : 0);
Radek Krejcidd2a7662021-03-12 11:26:34 +0100881 LY_CHECK_ERR_RET(!schema, LOGERR(ctx, LY_EINVAL, "Inner node (not a list) \"%s\" not found.", name), LY_ENOTFOUND);
Michal Vasko013a8182020-03-03 10:46:53 +0100882
Michal Vasko3a41dff2020-07-15 14:30:28 +0200883 LY_CHECK_RET(lyd_create_inner(schema, &ret));
884 if (parent) {
Michal Vasko013a8182020-03-03 10:46:53 +0100885 lyd_insert_node(parent, NULL, ret);
886 }
Michal Vasko3a41dff2020-07-15 14:30:28 +0200887
888 if (node) {
889 *node = ret;
890 }
891 return LY_SUCCESS;
Michal Vasko013a8182020-03-03 10:46:53 +0100892}
893
Michal Vasko3a41dff2020-07-15 14:30:28 +0200894API LY_ERR
Radek Krejcidd2a7662021-03-12 11:26:34 +0100895lyd_new_ext_inner(const struct lysc_ext_instance *ext, const char *name, struct lyd_node **node)
896{
897 struct lyd_node *ret = NULL;
898 const struct lysc_node *schema;
899 struct ly_ctx *ctx = ext ? ext->module->ctx : NULL;
900
901 LY_CHECK_ARG_RET(ctx, ext, node, name, LY_EINVAL);
902
903 schema = lysc_ext_find_node(ext, NULL, name, 0, LYS_CONTAINER | LYS_NOTIF | LYS_RPC | LYS_ACTION, 0);
904 if (!schema) {
905 if (ext->argument) {
906 LOGERR(ctx, LY_EINVAL, "Inner node (not a list) \"%s\" not found in instance \"%s\" of extension %s.",
907 name, ext->argument, ext->def->name);
908 } else {
909 LOGERR(ctx, LY_EINVAL, "Inner node (not a list) \"%s\" not found in instance of extension %s.",
910 name, ext->def->name);
911 }
912 return LY_ENOTFOUND;
913 }
914 LY_CHECK_RET(lyd_create_inner(schema, &ret));
915
916 *node = ret;
917
918 return LY_SUCCESS;
919}
920
Michal Vasko208e6d62021-06-28 11:23:50 +0200921/**
922 * @brief Create a new list node in the data tree.
923 *
924 * @param[in] parent Parent node for the node being created. NULL in case of creating a top level element.
925 * @param[in] module Module of the node being created. If NULL, @p parent module will be used.
926 * @param[in] name Schema node name of the new data node. The node must be #LYS_LIST.
927 * @param[in] format Format of key values.
928 * @param[in] output Flag in case the @p parent is RPC/Action. If value is 0, the input's data nodes of the RPC/Action are
929 * taken into consideration. Otherwise, the output's data node is going to be created.
930 * @param[out] node Optional created node.
931 * @param[in] ap Ordered key values of the new list instance, all must be set. For ::LY_VALUE_LYB, every value must
932 * be followed by the value length.
933 * @return LY_ERR value.
934 */
935static LY_ERR
936_lyd_new_list(struct lyd_node *parent, const struct lys_module *module, const char *name, LY_VALUE_FORMAT format,
937 ly_bool output, struct lyd_node **node, va_list ap)
Michal Vasko013a8182020-03-03 10:46:53 +0100938{
939 struct lyd_node *ret = NULL, *key;
940 const struct lysc_node *schema, *key_s;
941 struct ly_ctx *ctx = parent ? parent->schema->module->ctx : (module ? module->ctx : NULL);
Michal Vasko208e6d62021-06-28 11:23:50 +0200942 const void *key_val;
943 uint32_t key_len;
Michal Vasko013a8182020-03-03 10:46:53 +0100944 LY_ERR rc = LY_SUCCESS;
945
Michal Vasko6027eb92020-07-15 16:37:30 +0200946 LY_CHECK_ARG_RET(ctx, parent || module, parent || node, name, LY_EINVAL);
Michal Vasko013a8182020-03-03 10:46:53 +0100947
Michal Vaskof03ed032020-03-04 13:31:44 +0100948 if (!module) {
949 module = parent->schema->module;
950 }
951
Radek Krejci41ac9942020-11-02 14:47:56 +0100952 schema = lys_find_child(parent ? parent->schema : NULL, module, name, 0, LYS_LIST, output ? LYS_GETNEXT_OUTPUT : 0);
Michal Vasko3a41dff2020-07-15 14:30:28 +0200953 LY_CHECK_ERR_RET(!schema, LOGERR(ctx, LY_EINVAL, "List node \"%s\" not found.", name), LY_ENOTFOUND);
Michal Vasko013a8182020-03-03 10:46:53 +0100954
955 /* create list inner node */
Michal Vasko3a41dff2020-07-15 14:30:28 +0200956 LY_CHECK_RET(lyd_create_inner(schema, &ret));
Michal Vasko013a8182020-03-03 10:46:53 +0100957
Michal Vasko013a8182020-03-03 10:46:53 +0100958 /* create and insert all the keys */
Michal Vasko544e58a2021-01-28 14:33:41 +0100959 for (key_s = lysc_node_child(schema); key_s && (key_s->flags & LYS_KEY); key_s = key_s->next) {
Michal Vasko208e6d62021-06-28 11:23:50 +0200960 if (format == LY_VALUE_LYB) {
961 key_val = va_arg(ap, const void *);
962 key_len = va_arg(ap, uint32_t);
963 } else {
964 key_val = va_arg(ap, const char *);
965 key_len = key_val ? strlen((char *)key_val) : 0;
966 }
Michal Vasko013a8182020-03-03 10:46:53 +0100967
Michal Vasko208e6d62021-06-28 11:23:50 +0200968 rc = lyd_create_term(key_s, key_val, key_len, NULL, format, NULL, LYD_HINT_DATA, NULL, &key);
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200969 LY_CHECK_GOTO(rc, cleanup);
Michal Vasko013a8182020-03-03 10:46:53 +0100970 lyd_insert_node(ret, NULL, key);
971 }
972
Michal Vasko013a8182020-03-03 10:46:53 +0100973 if (parent) {
974 lyd_insert_node(parent, NULL, ret);
975 }
976
977cleanup:
978 if (rc) {
979 lyd_free_tree(ret);
980 ret = NULL;
Michal Vasko3a41dff2020-07-15 14:30:28 +0200981 } else if (node) {
982 *node = ret;
Michal Vasko013a8182020-03-03 10:46:53 +0100983 }
Michal Vasko3a41dff2020-07-15 14:30:28 +0200984 return rc;
Michal Vasko013a8182020-03-03 10:46:53 +0100985}
986
Michal Vasko3a41dff2020-07-15 14:30:28 +0200987API LY_ERR
Michal Vasko208e6d62021-06-28 11:23:50 +0200988lyd_new_list(struct lyd_node *parent, const struct lys_module *module, const char *name, ly_bool output,
989 struct lyd_node **node, ...)
990{
991 LY_ERR rc;
992 va_list ap;
993
994 va_start(ap, node);
995
996 rc = _lyd_new_list(parent, module, name, LY_VALUE_JSON, output, node, ap);
997
998 va_end(ap);
999 return rc;
1000}
1001
1002API LY_ERR
1003lyd_new_list_bin(struct lyd_node *parent, const struct lys_module *module, const char *name, ly_bool output,
1004 struct lyd_node **node, ...)
1005{
1006 LY_ERR rc;
1007 va_list ap;
1008
1009 va_start(ap, node);
1010
1011 rc = _lyd_new_list(parent, module, name, LY_VALUE_LYB, output, node, ap);
1012
1013 va_end(ap);
1014 return rc;
1015}
1016
1017API LY_ERR
1018lyd_new_list_canon(struct lyd_node *parent, const struct lys_module *module, const char *name, ly_bool output,
1019 struct lyd_node **node, ...)
1020{
1021 LY_ERR rc;
1022 va_list ap;
1023
1024 va_start(ap, node);
1025
1026 rc = _lyd_new_list(parent, module, name, LY_VALUE_CANON, output, node, ap);
1027
1028 va_end(ap);
1029 return rc;
1030}
1031
1032API LY_ERR
Radek Krejci8247bae2021-03-12 11:47:02 +01001033lyd_new_ext_list(const struct lysc_ext_instance *ext, const char *name, struct lyd_node **node, ...)
1034{
1035 struct lyd_node *ret = NULL, *key;
1036 const struct lysc_node *schema, *key_s;
1037 struct ly_ctx *ctx = ext ? ext->module->ctx : NULL;
1038 va_list ap;
1039 const char *key_val;
1040 LY_ERR rc = LY_SUCCESS;
1041
1042 LY_CHECK_ARG_RET(ctx, ext, node, name, LY_EINVAL);
1043
1044 schema = lysc_ext_find_node(ext, NULL, name, 0, LYS_LIST, 0);
1045 if (!schema) {
1046 if (ext->argument) {
1047 LOGERR(ctx, LY_EINVAL, "List node \"%s\" not found in instance \"%s\" of extension %s.",
1048 name, ext->argument, ext->def->name);
1049 } else {
1050 LOGERR(ctx, LY_EINVAL, "List node \"%s\" not found in instance of extension %s.", name, ext->def->name);
1051 }
1052 return LY_ENOTFOUND;
1053 }
1054 /* create list inner node */
1055 LY_CHECK_RET(lyd_create_inner(schema, &ret));
1056
1057 va_start(ap, node);
1058
1059 /* create and insert all the keys */
1060 for (key_s = lysc_node_child(schema); key_s && (key_s->flags & LYS_KEY); key_s = key_s->next) {
1061 key_val = va_arg(ap, const char *);
1062
Radek Krejci8df109d2021-04-23 12:19:08 +02001063 rc = lyd_create_term(key_s, key_val, key_val ? strlen(key_val) : 0, NULL, LY_VALUE_JSON, NULL, LYD_HINT_DATA,
Radek Krejci8247bae2021-03-12 11:47:02 +01001064 NULL, &key);
1065 LY_CHECK_GOTO(rc, cleanup);
1066 lyd_insert_node(ret, NULL, key);
1067 }
1068
1069cleanup:
1070 va_end(ap);
1071 if (rc) {
1072 lyd_free_tree(ret);
1073 ret = NULL;
Radek Krejci8247bae2021-03-12 11:47:02 +01001074 }
Radek Krejci8919fbd2021-03-15 09:35:25 +01001075 *node = ret;
Radek Krejci8247bae2021-03-12 11:47:02 +01001076 return rc;
1077}
1078
1079API LY_ERR
Michal Vasko3a41dff2020-07-15 14:30:28 +02001080lyd_new_list2(struct lyd_node *parent, const struct lys_module *module, const char *name, const char *keys,
Radek Krejci41ac9942020-11-02 14:47:56 +01001081 ly_bool output, struct lyd_node **node)
Michal Vasko013a8182020-03-03 10:46:53 +01001082{
1083 struct lyd_node *ret = NULL;
1084 const struct lysc_node *schema;
1085 struct ly_ctx *ctx = parent ? parent->schema->module->ctx : (module ? module->ctx : NULL);
1086
Michal Vasko6027eb92020-07-15 16:37:30 +02001087 LY_CHECK_ARG_RET(ctx, parent || module, parent || node, name, LY_EINVAL);
Michal Vasko013a8182020-03-03 10:46:53 +01001088
Michal Vaskof03ed032020-03-04 13:31:44 +01001089 if (!module) {
1090 module = parent->schema->module;
1091 }
Michal Vasko004d3152020-06-11 19:59:22 +02001092 if (!keys) {
1093 keys = "";
1094 }
Michal Vaskof03ed032020-03-04 13:31:44 +01001095
Michal Vasko004d3152020-06-11 19:59:22 +02001096 /* find schema node */
Radek Krejci41ac9942020-11-02 14:47:56 +01001097 schema = lys_find_child(parent ? parent->schema : NULL, module, name, 0, LYS_LIST, output ? LYS_GETNEXT_OUTPUT : 0);
Michal Vasko3a41dff2020-07-15 14:30:28 +02001098 LY_CHECK_ERR_RET(!schema, LOGERR(ctx, LY_EINVAL, "List node \"%s\" not found.", name), LY_ENOTFOUND);
Michal Vasko013a8182020-03-03 10:46:53 +01001099
Michal Vasko004d3152020-06-11 19:59:22 +02001100 if ((schema->flags & LYS_KEYLESS) && !keys[0]) {
1101 /* key-less list */
Michal Vasko3a41dff2020-07-15 14:30:28 +02001102 LY_CHECK_RET(lyd_create_inner(schema, &ret));
Michal Vasko004d3152020-06-11 19:59:22 +02001103 } else {
1104 /* create the list node */
Michal Vasko3a41dff2020-07-15 14:30:28 +02001105 LY_CHECK_RET(lyd_create_list2(schema, keys, strlen(keys), &ret));
Michal Vasko004d3152020-06-11 19:59:22 +02001106 }
Michal Vasko004d3152020-06-11 19:59:22 +02001107 if (parent) {
Michal Vasko013a8182020-03-03 10:46:53 +01001108 lyd_insert_node(parent, NULL, ret);
1109 }
Michal Vasko3a41dff2020-07-15 14:30:28 +02001110
1111 if (node) {
1112 *node = ret;
1113 }
1114 return LY_SUCCESS;
Michal Vasko013a8182020-03-03 10:46:53 +01001115}
1116
Radek Krejci09c77442021-04-26 11:10:34 +02001117/**
1118 * @brief Create a new term node in the data tree.
1119 *
1120 * @param[in] parent Parent node for the node being created. NULL in case of creating a top level element.
1121 * @param[in] module Module of the node being created. If NULL, @p parent module will be used.
1122 * @param[in] name Schema node name of the new data node. The node can be ::LYS_LEAF or ::LYS_LEAFLIST.
1123 * @param[in] value Value of the node being created.
1124 * @param[in] value_len Length of @p value.
1125 * @param[in] format Format of @p value.
1126 * @param[in] output Flag in case the @p parent is RPC/Action. If value is 0, the input's data nodes of the RPC/Action are
1127 * taken into consideration. Otherwise, the output's data node is going to be created.
1128 * @param[out] node Optional created node.
1129 * @return LY_ERR value.
1130 */
1131static LY_ERR
1132_lyd_new_term(struct lyd_node *parent, const struct lys_module *module, const char *name, const void *value,
1133 size_t value_len, LY_VALUE_FORMAT format, ly_bool output, struct lyd_node **node)
Michal Vasko013a8182020-03-03 10:46:53 +01001134{
Michal Vaskocbff3e92020-05-27 12:56:41 +02001135 LY_ERR rc;
Michal Vasko013a8182020-03-03 10:46:53 +01001136 struct lyd_node *ret = NULL;
1137 const struct lysc_node *schema;
Radek Krejci09c77442021-04-26 11:10:34 +02001138 const struct ly_ctx *ctx = parent ? LYD_CTX(parent) : (module ? module->ctx : NULL);
Michal Vasko013a8182020-03-03 10:46:53 +01001139
Michal Vasko6027eb92020-07-15 16:37:30 +02001140 LY_CHECK_ARG_RET(ctx, parent || module, parent || node, name, LY_EINVAL);
Michal Vasko013a8182020-03-03 10:46:53 +01001141
Michal Vaskof03ed032020-03-04 13:31:44 +01001142 if (!module) {
1143 module = parent->schema->module;
1144 }
1145
Radek Krejci41ac9942020-11-02 14:47:56 +01001146 schema = lys_find_child(parent ? parent->schema : NULL, module, name, 0, LYD_NODE_TERM, output ? LYS_GETNEXT_OUTPUT : 0);
Michal Vasko3a41dff2020-07-15 14:30:28 +02001147 LY_CHECK_ERR_RET(!schema, LOGERR(ctx, LY_EINVAL, "Term node \"%s\" not found.", name), LY_ENOTFOUND);
Michal Vasko013a8182020-03-03 10:46:53 +01001148
Radek Krejci09c77442021-04-26 11:10:34 +02001149 rc = lyd_create_term(schema, value, value_len, NULL, format, NULL, LYD_HINT_DATA, NULL, &ret);
Michal Vaskofeca4fb2020-10-05 08:58:40 +02001150 LY_CHECK_RET(rc);
Michal Vaskocbff3e92020-05-27 12:56:41 +02001151 if (parent) {
Michal Vasko013a8182020-03-03 10:46:53 +01001152 lyd_insert_node(parent, NULL, ret);
1153 }
Michal Vasko3a41dff2020-07-15 14:30:28 +02001154
1155 if (node) {
1156 *node = ret;
1157 }
1158 return LY_SUCCESS;
Michal Vasko013a8182020-03-03 10:46:53 +01001159}
1160
Michal Vasko3a41dff2020-07-15 14:30:28 +02001161API LY_ERR
Radek Krejci09c77442021-04-26 11:10:34 +02001162lyd_new_term(struct lyd_node *parent, const struct lys_module *module, const char *name, const char *val_str,
1163 ly_bool output, struct lyd_node **node)
1164{
1165 return _lyd_new_term(parent, module, name, val_str, val_str ? strlen(val_str) : 0, LY_VALUE_JSON, output, node);
1166}
1167
1168API LY_ERR
1169lyd_new_term_bin(struct lyd_node *parent, const struct lys_module *module, const char *name, const void *value,
1170 size_t value_len, ly_bool output, struct lyd_node **node)
1171{
1172 return _lyd_new_term(parent, module, name, value, value_len, LY_VALUE_LYB, output, node);
1173}
1174
1175API LY_ERR
1176lyd_new_term_canon(struct lyd_node *parent, const struct lys_module *module, const char *name, const char *val_str,
1177 ly_bool output, struct lyd_node **node)
1178{
1179 return _lyd_new_term(parent, module, name, val_str, val_str ? strlen(val_str) : 0, LY_VALUE_CANON, output, node);
1180}
1181
1182API LY_ERR
Radek Krejci8a5afc22021-03-12 11:10:47 +01001183lyd_new_ext_term(const struct lysc_ext_instance *ext, const char *name, const char *val_str, struct lyd_node **node)
1184{
1185 LY_ERR rc;
1186 struct lyd_node *ret = NULL;
1187 const struct lysc_node *schema;
1188 struct ly_ctx *ctx = ext ? ext->module->ctx : NULL;
1189
1190 LY_CHECK_ARG_RET(ctx, ext, node, name, LY_EINVAL);
1191
1192 schema = lysc_ext_find_node(ext, NULL, name, 0, LYD_NODE_TERM, 0);
1193 if (!schema) {
1194 if (ext->argument) {
1195 LOGERR(ctx, LY_EINVAL, "Term node \"%s\" not found in instance \"%s\" of extension %s.",
1196 name, ext->argument, ext->def->name);
1197 } else {
1198 LOGERR(ctx, LY_EINVAL, "Term node \"%s\" not found in instance of extension %s.", name, ext->def->name);
1199 }
1200 return LY_ENOTFOUND;
1201 }
Radek Krejci8df109d2021-04-23 12:19:08 +02001202 rc = lyd_create_term(schema, val_str, val_str ? strlen(val_str) : 0, NULL, LY_VALUE_JSON, NULL, LYD_HINT_DATA, NULL, &ret);
Radek Krejci8a5afc22021-03-12 11:10:47 +01001203 LY_CHECK_RET(rc);
1204
1205 *node = ret;
1206
1207 return LY_SUCCESS;
1208}
1209
1210API LY_ERR
Michal Vasko2a4ab2b2021-03-04 15:52:40 +01001211lyd_new_any(struct lyd_node *parent, const struct lys_module *module, const char *name, const void *value,
1212 ly_bool use_value, LYD_ANYDATA_VALUETYPE value_type, ly_bool output, struct lyd_node **node)
Michal Vasko013a8182020-03-03 10:46:53 +01001213{
1214 struct lyd_node *ret = NULL;
1215 const struct lysc_node *schema;
1216 struct ly_ctx *ctx = parent ? parent->schema->module->ctx : (module ? module->ctx : NULL);
1217
Michal Vasko6027eb92020-07-15 16:37:30 +02001218 LY_CHECK_ARG_RET(ctx, parent || module, parent || node, name, LY_EINVAL);
Michal Vasko013a8182020-03-03 10:46:53 +01001219
Michal Vaskof03ed032020-03-04 13:31:44 +01001220 if (!module) {
1221 module = parent->schema->module;
1222 }
1223
Radek Krejci41ac9942020-11-02 14:47:56 +01001224 schema = lys_find_child(parent ? parent->schema : NULL, module, name, 0, LYD_NODE_ANY, output ? LYS_GETNEXT_OUTPUT : 0);
Michal Vasko3a41dff2020-07-15 14:30:28 +02001225 LY_CHECK_ERR_RET(!schema, LOGERR(ctx, LY_EINVAL, "Any node \"%s\" not found.", name), LY_ENOTFOUND);
Michal Vasko013a8182020-03-03 10:46:53 +01001226
Michal Vasko2a4ab2b2021-03-04 15:52:40 +01001227 LY_CHECK_RET(lyd_create_any(schema, value, value_type, use_value, &ret));
Michal Vasko3a41dff2020-07-15 14:30:28 +02001228 if (parent) {
Michal Vasko013a8182020-03-03 10:46:53 +01001229 lyd_insert_node(parent, NULL, ret);
1230 }
Michal Vasko3a41dff2020-07-15 14:30:28 +02001231
1232 if (node) {
1233 *node = ret;
1234 }
1235 return LY_SUCCESS;
Michal Vasko013a8182020-03-03 10:46:53 +01001236}
1237
Radek Krejci0b963da2021-03-12 13:23:44 +01001238API LY_ERR
1239lyd_new_ext_any(const struct lysc_ext_instance *ext, const char *name, const void *value, ly_bool use_value,
1240 LYD_ANYDATA_VALUETYPE value_type, struct lyd_node **node)
1241{
1242 struct lyd_node *ret = NULL;
1243 const struct lysc_node *schema;
1244 struct ly_ctx *ctx = ext ? ext->module->ctx : NULL;
1245
1246 LY_CHECK_ARG_RET(ctx, ext, node, name, LY_EINVAL);
1247
1248 schema = lysc_ext_find_node(ext, NULL, name, 0, LYD_NODE_ANY, 0);
1249 if (!schema) {
1250 if (ext->argument) {
1251 LOGERR(ctx, LY_EINVAL, "Any node \"%s\" not found in instance \"%s\" of extension %s.",
1252 name, ext->argument, ext->def->name);
1253 } else {
1254 LOGERR(ctx, LY_EINVAL, "Any node \"%s\" not found in instance of extension %s.", name, ext->def->name);
1255 }
1256 return LY_ENOTFOUND;
1257 }
1258 LY_CHECK_RET(lyd_create_any(schema, value, value_type, use_value, &ret));
1259
1260 *node = ret;
1261
1262 return LY_SUCCESS;
1263}
1264
Michal Vasko3a41dff2020-07-15 14:30:28 +02001265API LY_ERR
Michal Vasko871a0252020-11-11 18:35:24 +01001266lyd_new_meta(const struct ly_ctx *ctx, struct lyd_node *parent, const struct lys_module *module, const char *name,
1267 const char *val_str, ly_bool clear_dflt, struct lyd_meta **meta)
Michal Vaskod86997b2020-05-26 15:19:54 +02001268{
Michal Vaskod86997b2020-05-26 15:19:54 +02001269 const char *prefix, *tmp;
Michal Vaskod86997b2020-05-26 15:19:54 +02001270 size_t pref_len, name_len;
1271
Michal Vasko2b5344c2021-02-26 10:12:05 +01001272 LY_CHECK_ARG_RET(ctx, ctx || parent, name, module || strchr(name, ':'), parent || meta, LY_EINVAL);
1273 if (!ctx) {
1274 ctx = LYD_CTX(parent);
1275 }
Michal Vasko00cbf532020-06-15 13:58:47 +02001276
Michal Vasko871a0252020-11-11 18:35:24 +01001277 if (parent && !parent->schema) {
Michal Vasko33b4fab2021-03-04 15:56:12 +01001278 LOGERR(ctx, LY_EINVAL, "Cannot add metadata \"%s\" to an opaque node \"%s\".", name, LYD_NAME(parent));
Michal Vasko871a0252020-11-11 18:35:24 +01001279 return LY_EINVAL;
1280 }
Michal Vasko610553d2020-11-18 18:15:05 +01001281 if (meta) {
1282 *meta = NULL;
1283 }
Michal Vaskod86997b2020-05-26 15:19:54 +02001284
1285 /* parse the name */
1286 tmp = name;
1287 if (ly_parse_nodeid(&tmp, &prefix, &pref_len, &name, &name_len) || tmp[0]) {
1288 LOGERR(ctx, LY_EINVAL, "Metadata name \"%s\" is not valid.", name);
Michal Vasko871a0252020-11-11 18:35:24 +01001289 return LY_EINVAL;
Michal Vaskod86997b2020-05-26 15:19:54 +02001290 }
1291
1292 /* find the module */
1293 if (prefix) {
Radek Krejci0ad51f12020-07-16 12:08:12 +02001294 module = ly_ctx_get_module_implemented2(ctx, prefix, pref_len);
Radek Krejci422afb12021-03-04 16:38:16 +01001295 LY_CHECK_ERR_RET(!module, LOGERR(ctx, LY_EINVAL, "Module \"%.*s\" not found.", (int)pref_len, prefix), LY_ENOTFOUND);
Michal Vaskod86997b2020-05-26 15:19:54 +02001296 }
1297
1298 /* set value if none */
1299 if (!val_str) {
1300 val_str = "";
1301 }
1302
Radek Krejci8df109d2021-04-23 12:19:08 +02001303 return lyd_create_meta(parent, meta, module, name, name_len, val_str, strlen(val_str), NULL, LY_VALUE_JSON,
Michal Vasko871a0252020-11-11 18:35:24 +01001304 NULL, LYD_HINT_DATA, clear_dflt, NULL);
1305}
Michal Vasko3a41dff2020-07-15 14:30:28 +02001306
Michal Vaskoba696702020-11-11 19:12:45 +01001307API LY_ERR
1308lyd_new_meta2(const struct ly_ctx *ctx, struct lyd_node *parent, ly_bool clear_dflt, const struct lyd_attr *attr,
1309 struct lyd_meta **meta)
1310{
1311 const struct lys_module *mod;
1312
1313 LY_CHECK_ARG_RET(NULL, ctx, attr, parent || meta, LY_EINVAL);
1314
1315 if (parent && !parent->schema) {
1316 LOGERR(ctx, LY_EINVAL, "Cannot add metadata to an opaque node \"%s\".", ((struct lyd_node_opaq *)parent)->name);
1317 return LY_EINVAL;
Michal Vasko3a41dff2020-07-15 14:30:28 +02001318 }
Michal Vasko610553d2020-11-18 18:15:05 +01001319 if (meta) {
1320 *meta = NULL;
1321 }
Michal Vaskoba696702020-11-11 19:12:45 +01001322
1323 switch (attr->format) {
Radek Krejci8df109d2021-04-23 12:19:08 +02001324 case LY_VALUE_XML:
Michal Vaskoad92b672020-11-12 13:11:31 +01001325 mod = ly_ctx_get_module_implemented_ns(ctx, attr->name.module_ns);
Michal Vaskoba696702020-11-11 19:12:45 +01001326 if (!mod) {
Michal Vaskoad92b672020-11-12 13:11:31 +01001327 LOGERR(ctx, LY_EINVAL, "Module with namespace \"%s\" not found.", attr->name.module_ns);
Michal Vaskoba696702020-11-11 19:12:45 +01001328 return LY_ENOTFOUND;
1329 }
1330 break;
Radek Krejci8df109d2021-04-23 12:19:08 +02001331 case LY_VALUE_JSON:
Michal Vaskoad92b672020-11-12 13:11:31 +01001332 mod = ly_ctx_get_module_implemented(ctx, attr->name.module_name);
Michal Vaskoba696702020-11-11 19:12:45 +01001333 if (!mod) {
Michal Vaskoad92b672020-11-12 13:11:31 +01001334 LOGERR(ctx, LY_EINVAL, "Module \"%s\" not found.", attr->name.module_name);
Michal Vaskoba696702020-11-11 19:12:45 +01001335 return LY_ENOTFOUND;
1336 }
1337 break;
1338 default:
1339 LOGINT_RET(ctx);
1340 }
1341
Michal Vaskoad92b672020-11-12 13:11:31 +01001342 return lyd_create_meta(parent, meta, mod, attr->name.name, strlen(attr->name.name), attr->value, strlen(attr->value),
Michal Vaskoba696702020-11-11 19:12:45 +01001343 NULL, attr->format, attr->val_prefix_data, attr->hints, clear_dflt, NULL);
Michal Vaskod86997b2020-05-26 15:19:54 +02001344}
1345
Michal Vasko3a41dff2020-07-15 14:30:28 +02001346API LY_ERR
Michal Vasko00cbf532020-06-15 13:58:47 +02001347lyd_new_opaq(struct lyd_node *parent, const struct ly_ctx *ctx, const char *name, const char *value,
Michal Vasko0ab974d2021-02-24 13:18:26 +01001348 const char *prefix, const char *module_name, struct lyd_node **node)
Michal Vasko00cbf532020-06-15 13:58:47 +02001349{
1350 struct lyd_node *ret = NULL;
Radek Krejci07a55962021-03-02 20:16:43 +01001351
Michal Vasko0ab974d2021-02-24 13:18:26 +01001352 LY_CHECK_ARG_RET(ctx, parent || ctx, parent || node, name, module_name, !prefix || !strcmp(prefix, module_name), LY_EINVAL);
Michal Vasko00cbf532020-06-15 13:58:47 +02001353
1354 if (!ctx) {
Michal Vaskob7be7a82020-08-20 09:09:04 +02001355 ctx = LYD_CTX(parent);
Michal Vasko00cbf532020-06-15 13:58:47 +02001356 }
1357 if (!value) {
1358 value = "";
1359 }
1360
Michal Vasko0ab974d2021-02-24 13:18:26 +01001361 LY_CHECK_RET(lyd_create_opaq(ctx, name, strlen(name), prefix, prefix ? strlen(prefix) : 0, module_name,
Radek Krejci8df109d2021-04-23 12:19:08 +02001362 strlen(module_name), value, strlen(value), NULL, LY_VALUE_JSON, NULL, 0, &ret));
Michal Vasko3a41dff2020-07-15 14:30:28 +02001363 if (parent) {
Michal Vasko00cbf532020-06-15 13:58:47 +02001364 lyd_insert_node(parent, NULL, ret);
1365 }
Michal Vasko3a41dff2020-07-15 14:30:28 +02001366
1367 if (node) {
1368 *node = ret;
1369 }
1370 return LY_SUCCESS;
Michal Vasko00cbf532020-06-15 13:58:47 +02001371}
1372
Michal Vasko3a41dff2020-07-15 14:30:28 +02001373API LY_ERR
Michal Vasko8d65f852021-02-17 11:28:13 +01001374lyd_new_opaq2(struct lyd_node *parent, const struct ly_ctx *ctx, const char *name, const char *value,
Michal Vasko0ab974d2021-02-24 13:18:26 +01001375 const char *prefix, const char *module_ns, struct lyd_node **node)
Michal Vasko8d65f852021-02-17 11:28:13 +01001376{
1377 struct lyd_node *ret = NULL;
1378
1379 LY_CHECK_ARG_RET(ctx, parent || ctx, parent || node, name, module_ns, LY_EINVAL);
1380
1381 if (!ctx) {
1382 ctx = LYD_CTX(parent);
1383 }
1384 if (!value) {
1385 value = "";
1386 }
1387
Michal Vasko0ab974d2021-02-24 13:18:26 +01001388 LY_CHECK_RET(lyd_create_opaq(ctx, name, strlen(name), prefix, prefix ? strlen(prefix) : 0, module_ns,
Radek Krejci8df109d2021-04-23 12:19:08 +02001389 strlen(module_ns), value, strlen(value), NULL, LY_VALUE_XML, NULL, 0, &ret));
Michal Vasko8d65f852021-02-17 11:28:13 +01001390 if (parent) {
1391 lyd_insert_node(parent, NULL, ret);
1392 }
1393
1394 if (node) {
1395 *node = ret;
1396 }
1397 return LY_SUCCESS;
1398}
1399
1400API LY_ERR
1401lyd_new_attr(struct lyd_node *parent, const char *module_name, const char *name, const char *value,
Radek Krejci0f969882020-08-21 16:56:47 +02001402 struct lyd_attr **attr)
Michal Vasko00cbf532020-06-15 13:58:47 +02001403{
Radek Krejci1798aae2020-07-14 13:26:06 +02001404 struct lyd_attr *ret = NULL;
Michal Vasko00cbf532020-06-15 13:58:47 +02001405 const struct ly_ctx *ctx;
1406 const char *prefix, *tmp;
Michal Vasko51d21b82020-11-13 18:03:54 +01001407 size_t pref_len, name_len, mod_len;
Michal Vasko00cbf532020-06-15 13:58:47 +02001408
Michal Vasko3a41dff2020-07-15 14:30:28 +02001409 LY_CHECK_ARG_RET(NULL, parent, !parent->schema, name, LY_EINVAL);
Michal Vasko00cbf532020-06-15 13:58:47 +02001410
Michal Vaskob7be7a82020-08-20 09:09:04 +02001411 ctx = LYD_CTX(parent);
Michal Vasko00cbf532020-06-15 13:58:47 +02001412
1413 /* parse the name */
1414 tmp = name;
1415 if (ly_parse_nodeid(&tmp, &prefix, &pref_len, &name, &name_len) || tmp[0]) {
Michal Vaskob69b68c2021-02-17 11:18:16 +01001416 LOGERR(ctx, LY_EINVAL, "Attribute name \"%s\" is not valid.", name);
Michal Vasko3a41dff2020-07-15 14:30:28 +02001417 return LY_EVALID;
Michal Vasko00cbf532020-06-15 13:58:47 +02001418 }
1419
Michal Vasko51d21b82020-11-13 18:03:54 +01001420 /* get the module */
1421 if (module_name) {
1422 mod_len = strlen(module_name);
1423 } else {
1424 module_name = prefix;
1425 mod_len = pref_len;
1426 }
1427
Michal Vasko00cbf532020-06-15 13:58:47 +02001428 /* set value if none */
Michal Vasko8d65f852021-02-17 11:28:13 +01001429 if (!value) {
1430 value = "";
Michal Vasko00cbf532020-06-15 13:58:47 +02001431 }
1432
Michal Vasko8d65f852021-02-17 11:28:13 +01001433 LY_CHECK_RET(lyd_create_attr(parent, &ret, ctx, name, name_len, prefix, pref_len, module_name, mod_len, value,
Radek Krejci8df109d2021-04-23 12:19:08 +02001434 strlen(value), NULL, LY_VALUE_JSON, NULL, LYD_HINT_DATA));
Michal Vasko8d65f852021-02-17 11:28:13 +01001435
1436 if (attr) {
1437 *attr = ret;
1438 }
1439 return LY_SUCCESS;
1440}
1441
1442API LY_ERR
1443lyd_new_attr2(struct lyd_node *parent, const char *module_ns, const char *name, const char *value,
1444 struct lyd_attr **attr)
1445{
1446 struct lyd_attr *ret = NULL;
1447 const struct ly_ctx *ctx;
1448 const char *prefix, *tmp;
1449 size_t pref_len, name_len;
1450
1451 LY_CHECK_ARG_RET(NULL, parent, !parent->schema, name, LY_EINVAL);
1452
1453 ctx = LYD_CTX(parent);
1454
1455 /* parse the name */
1456 tmp = name;
1457 if (ly_parse_nodeid(&tmp, &prefix, &pref_len, &name, &name_len) || tmp[0]) {
1458 LOGERR(ctx, LY_EINVAL, "Attribute name \"%s\" is not valid.", name);
1459 return LY_EVALID;
1460 }
1461
1462 /* set value if none */
1463 if (!value) {
1464 value = "";
1465 }
1466
1467 LY_CHECK_RET(lyd_create_attr(parent, &ret, ctx, name, name_len, prefix, pref_len, module_ns,
Radek Krejci8df109d2021-04-23 12:19:08 +02001468 module_ns ? strlen(module_ns) : 0, value, strlen(value), NULL, LY_VALUE_XML, NULL, LYD_HINT_DATA));
Michal Vasko3a41dff2020-07-15 14:30:28 +02001469
1470 if (attr) {
1471 *attr = ret;
1472 }
1473 return LY_SUCCESS;
Michal Vasko00cbf532020-06-15 13:58:47 +02001474}
1475
Radek Krejci09c77442021-04-26 11:10:34 +02001476/**
1477 * @brief Change the value of a term (leaf or leaf-list) node.
1478 *
1479 * Node changed this way is always considered explicitly set, meaning its default flag
1480 * is always cleared.
1481 *
1482 * @param[in] term Term node to change.
1483 * @param[in] value New value to set.
1484 * @param[in] value_len Length of @p value.
1485 * @param[in] format Format of @p value.
1486 * @return LY_SUCCESS if value was changed,
1487 * @return LY_EEXIST if value was the same and only the default flag was cleared,
1488 * @return LY_ENOT if the values were equal and no change occured,
1489 * @return LY_ERR value on other errors.
1490 */
1491static LY_ERR
1492_lyd_change_term(struct lyd_node *term, const void *value, size_t value_len, LY_VALUE_FORMAT format)
Michal Vasko00cbf532020-06-15 13:58:47 +02001493{
1494 LY_ERR ret = LY_SUCCESS;
1495 struct lysc_type *type;
1496 struct lyd_node_term *t;
1497 struct lyd_node *parent;
1498 struct lyd_value val = {0};
Radek Krejci857189e2020-09-01 13:26:36 +02001499 ly_bool dflt_change, val_change;
Michal Vasko00cbf532020-06-15 13:58:47 +02001500
Radek Krejci09c77442021-04-26 11:10:34 +02001501 assert(term && term->schema && (term->schema->nodetype & LYD_NODE_TERM));
Michal Vasko00cbf532020-06-15 13:58:47 +02001502
Michal Vasko00cbf532020-06-15 13:58:47 +02001503 t = (struct lyd_node_term *)term;
1504 type = ((struct lysc_node_leaf *)term->schema)->type;
1505
1506 /* parse the new value */
Radek Krejciddace2c2021-01-08 11:30:56 +01001507 LOG_LOCSET(term->schema, term, NULL, NULL);
Radek Krejci09c77442021-04-26 11:10:34 +02001508 ret = lyd_value_store(LYD_CTX(term), &val, type, value, value_len, NULL, format, NULL, LYD_HINT_DATA, term->schema, NULL);
Radek Krejciddace2c2021-01-08 11:30:56 +01001509 LOG_LOCBACK(term->schema ? 1 : 0, 1, 0, 0);
Michal Vaskofeca4fb2020-10-05 08:58:40 +02001510 LY_CHECK_GOTO(ret, cleanup);
Michal Vasko00cbf532020-06-15 13:58:47 +02001511
1512 /* compare original and new value */
1513 if (type->plugin->compare(&t->value, &val)) {
1514 /* values differ, switch them */
Michal Vaskob7be7a82020-08-20 09:09:04 +02001515 type->plugin->free(LYD_CTX(term), &t->value);
Michal Vasko00cbf532020-06-15 13:58:47 +02001516 t->value = val;
1517 memset(&val, 0, sizeof val);
1518 val_change = 1;
1519 } else {
1520 val_change = 0;
1521 }
1522
1523 /* always clear the default flag */
1524 if (term->flags & LYD_DEFAULT) {
Michal Vasko9e685082021-01-29 14:49:09 +01001525 for (parent = term; parent; parent = lyd_parent(parent)) {
Michal Vasko00cbf532020-06-15 13:58:47 +02001526 parent->flags &= ~LYD_DEFAULT;
1527 }
1528 dflt_change = 1;
1529 } else {
1530 dflt_change = 0;
1531 }
1532
1533 if (val_change || dflt_change) {
1534 /* make the node non-validated */
1535 term->flags &= LYD_NEW;
1536 }
1537
1538 if (val_change) {
1539 if (term->schema->nodetype == LYS_LEAFLIST) {
1540 /* leaf-list needs to be hashed again and re-inserted into parent */
1541 lyd_unlink_hash(term);
1542 lyd_hash(term);
1543 LY_CHECK_GOTO(ret = lyd_insert_hash(term), cleanup);
1544 } else if ((term->schema->flags & LYS_KEY) && term->parent) {
1545 /* list needs to be updated if its key was changed */
1546 assert(term->parent->schema->nodetype == LYS_LIST);
Michal Vasko9e685082021-01-29 14:49:09 +01001547 lyd_unlink_hash(lyd_parent(term));
1548 lyd_hash(lyd_parent(term));
1549 LY_CHECK_GOTO(ret = lyd_insert_hash(lyd_parent(term)), cleanup);
Michal Vasko00cbf532020-06-15 13:58:47 +02001550 } /* else leaf that is not a key, its value is not used for its hash so it does not change */
1551 }
1552
1553 /* retrun value */
1554 if (!val_change) {
1555 if (dflt_change) {
1556 /* only default flag change */
1557 ret = LY_EEXIST;
1558 } else {
1559 /* no change */
1560 ret = LY_ENOT;
1561 }
1562 } /* else value changed, LY_SUCCESS */
1563
1564cleanup:
Michal Vasko59512fc2020-12-09 18:13:29 +01001565 if (val.realtype) {
1566 type->plugin->free(LYD_CTX(term), &val);
1567 }
Michal Vasko00cbf532020-06-15 13:58:47 +02001568 return ret;
1569}
1570
Michal Vasko41586352020-07-13 13:54:25 +02001571API LY_ERR
Radek Krejci09c77442021-04-26 11:10:34 +02001572lyd_change_term(struct lyd_node *term, const char *val_str)
1573{
1574 LY_CHECK_ARG_RET(NULL, term, term->schema, term->schema->nodetype & LYD_NODE_TERM, LY_EINVAL);
1575
1576 return _lyd_change_term(term, val_str, val_str ? strlen(val_str) : 0, LY_VALUE_JSON);
1577}
1578
1579API LY_ERR
1580lyd_change_term_bin(struct lyd_node *term, const void *value, size_t value_len)
1581{
1582 LY_CHECK_ARG_RET(NULL, term, term->schema, term->schema->nodetype & LYD_NODE_TERM, LY_EINVAL);
1583
1584 return _lyd_change_term(term, value, value_len, LY_VALUE_LYB);
1585}
1586
1587API LY_ERR
1588lyd_change_term_canon(struct lyd_node *term, const char *val_str)
1589{
1590 LY_CHECK_ARG_RET(NULL, term, term->schema, term->schema->nodetype & LYD_NODE_TERM, LY_EINVAL);
1591
1592 return _lyd_change_term(term, val_str, val_str ? strlen(val_str) : 0, LY_VALUE_CANON);
1593}
1594
1595API LY_ERR
Michal Vasko41586352020-07-13 13:54:25 +02001596lyd_change_meta(struct lyd_meta *meta, const char *val_str)
1597{
1598 LY_ERR ret = LY_SUCCESS;
Radek Krejci2b18bf12020-11-06 11:20:20 +01001599 struct lyd_meta *m2 = NULL;
Michal Vasko41586352020-07-13 13:54:25 +02001600 struct lyd_value val;
Radek Krejci857189e2020-09-01 13:26:36 +02001601 ly_bool val_change;
Michal Vasko41586352020-07-13 13:54:25 +02001602
1603 LY_CHECK_ARG_RET(NULL, meta, LY_EINVAL);
1604
1605 if (!val_str) {
1606 val_str = "";
1607 }
1608
1609 /* parse the new value into a new meta structure */
1610 LY_CHECK_GOTO(ret = lyd_create_meta(NULL, &m2, meta->annotation->module, meta->name, strlen(meta->name), val_str,
Radek Krejci8df109d2021-04-23 12:19:08 +02001611 strlen(val_str), NULL, LY_VALUE_JSON, NULL, LYD_HINT_DATA, 0, NULL), cleanup);
Michal Vasko41586352020-07-13 13:54:25 +02001612
1613 /* compare original and new value */
1614 if (lyd_compare_meta(meta, m2)) {
1615 /* values differ, switch them */
1616 val = meta->value;
1617 meta->value = m2->value;
1618 m2->value = val;
1619 val_change = 1;
1620 } else {
1621 val_change = 0;
1622 }
1623
1624 /* retrun value */
1625 if (!val_change) {
1626 /* no change */
1627 ret = LY_ENOT;
1628 } /* else value changed, LY_SUCCESS */
1629
1630cleanup:
Michal Vasko1a66a5d2020-11-18 18:15:37 +01001631 lyd_free_meta_single(m2);
Michal Vasko41586352020-07-13 13:54:25 +02001632 return ret;
1633}
1634
Radek Krejci09c77442021-04-26 11:10:34 +02001635/**
1636 * @brief Update node value.
1637 *
1638 * @param[in] node Node to update.
1639 * @param[in] value New value to set.
1640 * @param[in] value_len Length of @p value.
1641 * @param[in] value_type Type of @p value for anydata/anyxml node.
1642 * @param[in] format Format of @p value.
1643 * @param[out] new_parent Set to @p node if the value was updated, otherwise set to NULL.
1644 * @param[out] new_node Set to @p node if the value was updated, otherwise set to NULL.
1645 * @return LY_ERR value.
1646 */
Michal Vasko6741dc62021-02-04 09:27:45 +01001647static LY_ERR
Radek Krejci09c77442021-04-26 11:10:34 +02001648lyd_new_path_update(struct lyd_node *node, const void *value, size_t value_len, LYD_ANYDATA_VALUETYPE value_type,
1649 LY_VALUE_FORMAT format, struct lyd_node **new_parent, struct lyd_node **new_node)
1650{
1651 LY_ERR ret = LY_SUCCESS;
1652 struct lyd_node *new_any;
1653
1654 switch (node->schema->nodetype) {
1655 case LYS_CONTAINER:
1656 case LYS_NOTIF:
1657 case LYS_RPC:
1658 case LYS_ACTION:
1659 case LYS_LIST:
1660 /* if it exists, there is nothing to update */
1661 *new_parent = NULL;
1662 *new_node = NULL;
1663 break;
1664 case LYS_LEAFLIST:
1665 if (!lysc_is_dup_inst_list(node->schema)) {
1666 /* if it exists, there is nothing to update */
1667 *new_parent = NULL;
1668 *new_node = NULL;
1669 break;
1670 }
1671 /* fallthrough */
1672 case LYS_LEAF:
1673 ret = _lyd_change_term(node, value, value_len, format);
1674 if ((ret == LY_SUCCESS) || (ret == LY_EEXIST)) {
1675 /* there was an actual change (at least of the default flag) */
1676 *new_parent = node;
1677 *new_node = node;
1678 ret = LY_SUCCESS;
1679 } else if (ret == LY_ENOT) {
1680 /* no change */
1681 *new_parent = NULL;
1682 *new_node = NULL;
1683 ret = LY_SUCCESS;
1684 } /* else error */
1685 break;
1686 case LYS_ANYDATA:
1687 case LYS_ANYXML:
1688 /* create a new any node */
1689 LY_CHECK_RET(lyd_create_any(node->schema, value, value_type, 0, &new_any));
1690
1691 /* compare with the existing one */
1692 if (lyd_compare_single(node, new_any, 0)) {
1693 /* not equal, switch values (so that we can use generic node free) */
1694 ((struct lyd_node_any *)new_any)->value = ((struct lyd_node_any *)node)->value;
1695 ((struct lyd_node_any *)new_any)->value_type = ((struct lyd_node_any *)node)->value_type;
1696 ((struct lyd_node_any *)node)->value.str = value;
1697 ((struct lyd_node_any *)node)->value_type = value_type;
1698
1699 *new_parent = node;
1700 *new_node = node;
1701 } else {
1702 /* they are equal */
1703 *new_parent = NULL;
1704 *new_node = NULL;
1705 }
1706 lyd_free_tree(new_any);
1707 break;
1708 default:
1709 LOGINT(LYD_CTX(node));
1710 ret = LY_EINT;
1711 break;
1712 }
1713
1714 return ret;
1715}
1716
1717static LY_ERR
1718lyd_new_path_check_find_lypath(struct ly_path *path, const char *str_path, const char *value, size_t value_len,
1719 LY_VALUE_FORMAT format, uint32_t options)
Michal Vasko6741dc62021-02-04 09:27:45 +01001720{
Michal Vaskoe78faec2021-04-08 17:24:43 +02001721 LY_ERR r;
Michal Vasko6741dc62021-02-04 09:27:45 +01001722 struct ly_path_predicate *pred;
Michal Vaskoe78faec2021-04-08 17:24:43 +02001723 const struct lysc_node *schema = NULL;
1724 LY_ARRAY_COUNT_TYPE u, new_count;
1725 int create = 0;
Michal Vasko6741dc62021-02-04 09:27:45 +01001726
1727 assert(path);
1728
1729 /* go through all the compiled nodes */
1730 LY_ARRAY_FOR(path, u) {
1731 schema = path[u].node;
Michal Vaskoe78faec2021-04-08 17:24:43 +02001732
1733 if (lysc_is_dup_inst_list(schema)) {
1734 if (path[u].pred_type == LY_PATH_PREDTYPE_NONE) {
1735 /* creating a new key-less list or state leaf-list instance */
1736 create = 1;
1737 new_count = u;
1738 } else if (path[u].pred_type != LY_PATH_PREDTYPE_POSITION) {
1739 LOG_LOCSET(schema, NULL, NULL, NULL);
1740 LOGVAL(schema->module->ctx, LYVE_XPATH, "Invalid predicate for %s \"%s\" in path \"%s\".",
1741 lys_nodetype2str(schema->nodetype), schema->name, str_path);
1742 LOG_LOCBACK(1, 0, 0, 0);
1743 return LY_EINVAL;
1744 }
1745 } else if ((schema->nodetype == LYS_LIST) && (path[u].pred_type != LY_PATH_PREDTYPE_LIST)) {
1746 if ((u < LY_ARRAY_COUNT(path) - 1) || !(options & LYD_NEW_PATH_OPAQ)) {
Michal Vasko6741dc62021-02-04 09:27:45 +01001747 LOG_LOCSET(schema, NULL, NULL, NULL);
1748 LOGVAL(schema->module->ctx, LYVE_XPATH, "Predicate missing for %s \"%s\" in path \"%s\".",
1749 lys_nodetype2str(schema->nodetype), schema->name, str_path);
1750 LOG_LOCBACK(1, 0, 0, 0);
1751 return LY_EINVAL;
Michal Vaskoe78faec2021-04-08 17:24:43 +02001752 } /* else creating an opaque list */
1753 } else if ((schema->nodetype == LYS_LEAFLIST) && (path[u].pred_type != LY_PATH_PREDTYPE_LEAFLIST)) {
Michal Vaskoe78faec2021-04-08 17:24:43 +02001754 r = LY_SUCCESS;
1755 if (options & LYD_NEW_PATH_OPAQ) {
Radek Krejci09c77442021-04-26 11:10:34 +02001756 r = lyd_value_validate(NULL, schema, value, value_len, NULL, NULL, NULL);
Michal Vaskoe78faec2021-04-08 17:24:43 +02001757 }
1758 if (!r) {
1759 /* store the new predicate so that it is used when searching for this instance */
1760 path[u].pred_type = LY_PATH_PREDTYPE_LEAFLIST;
1761 LY_ARRAY_NEW_RET(schema->module->ctx, path[u].predicates, pred, LY_EMEM);
1762
1763 LY_CHECK_RET(lyd_value_store(schema->module->ctx, &pred->value,
Radek Krejci09c77442021-04-26 11:10:34 +02001764 ((struct lysc_node_leaflist *)schema)->type, value, value_len, NULL, format, NULL,
Michal Vaskoe78faec2021-04-08 17:24:43 +02001765 LYD_HINT_DATA, schema, NULL));
1766 ++((struct lysc_type *)pred->value.realtype)->refcount;
1767 } /* else we have opaq flag and the value is not valid, leave no predicate and then create an opaque node */
1768 }
Michal Vasko6741dc62021-02-04 09:27:45 +01001769 }
1770
Michal Vaskoe78faec2021-04-08 17:24:43 +02001771 if (create) {
1772 /* hide the nodes that should always be created so they are not found */
1773 while (new_count < LY_ARRAY_COUNT(path)) {
1774 LY_ARRAY_DECREMENT(path);
1775 }
Michal Vasko6741dc62021-02-04 09:27:45 +01001776 }
1777
Michal Vaskoe78faec2021-04-08 17:24:43 +02001778 return LY_SUCCESS;
Michal Vasko6741dc62021-02-04 09:27:45 +01001779}
1780
Radek Krejci95ccd1b2021-03-12 14:57:22 +01001781/**
1782 * @brief Create a new node in the data tree based on a path. All node types can be created.
1783 *
1784 * If @p path points to a list key and the list instance does not exist, the key value from the predicate is used
1785 * and @p value is ignored. Also, if a leaf-list is being created and both a predicate is defined in @p path
1786 * and @p value is set, the predicate is preferred.
1787 *
1788 * For key-less lists and state leaf-lists, positional predicates can be used. If no preciate is used for these
1789 * nodes, they are always created.
1790 *
1791 * @param[in] parent Data parent to add to/modify, can be NULL. Note that in case a first top-level sibling is used,
1792 * it may no longer be first if @p path is absolute and starts with a non-existing top-level node inserted
1793 * before @p parent. Use ::lyd_first_sibling() to adjust @p parent in these cases.
1794 * @param[in] ctx libyang context, must be set if @p parent is NULL.
1795 * @param[in] ext Extension instance where the node being created is defined. This argument takes effect only for absolute
1796 * path or when the relative paths touches document root (top-level). In such cases the present extension instance replaces
1797 * searching for the appropriate module.
1798 * @param[in] path [Path](@ref howtoXPath) to create.
Radek Krejci09c77442021-04-26 11:10:34 +02001799 * @param[in] value Value of the new leaf/leaf-list (const char *) in ::LY_VALUE_JSON format. If creating an
1800 * anyxml/anydata node, the expected type depends on @p value_type. For other node types, it should be NULL.
1801 * @param[in] value_len Length of @p value in bytes. May be 0 if @p value is a zero-terminated string. Ignored when
1802 * creating anyxml/anydata nodes.
Radek Krejci95ccd1b2021-03-12 14:57:22 +01001803 * @param[in] value_type Anyxml/anydata node @p value type.
1804 * @param[in] options Bitmask of options, see @ref pathoptions.
1805 * @param[out] new_parent Optional first parent node created. If only one node was created, equals to @p new_node.
1806 * @param[out] new_node Optional last node created.
1807 * @return LY_ERR value.
1808 */
1809static LY_ERR
1810lyd_new_path_(struct lyd_node *parent, const struct ly_ctx *ctx, const struct lysc_ext_instance *ext, const char *path,
Radek Krejci09c77442021-04-26 11:10:34 +02001811 const void *value, size_t value_len, LYD_ANYDATA_VALUETYPE value_type, uint32_t options,
Radek Krejci95ccd1b2021-03-12 14:57:22 +01001812 struct lyd_node **new_parent, struct lyd_node **new_node)
Michal Vasko00cbf532020-06-15 13:58:47 +02001813{
1814 LY_ERR ret = LY_SUCCESS, r;
1815 struct lyxp_expr *exp = NULL;
1816 struct ly_path *p = NULL;
1817 struct lyd_node *nparent = NULL, *nnode = NULL, *node = NULL, *cur_parent;
1818 const struct lysc_node *schema;
Michal Vaskoe78faec2021-04-08 17:24:43 +02001819 const struct lyd_value *val = NULL;
Radek Krejci910d0132021-03-05 14:19:31 +01001820 LY_ARRAY_COUNT_TYPE path_idx = 0, orig_count = 0;
Radek Krejci09c77442021-04-26 11:10:34 +02001821 LY_VALUE_FORMAT format;
Michal Vasko00cbf532020-06-15 13:58:47 +02001822
Radek Krejci95ccd1b2021-03-12 14:57:22 +01001823 assert(parent || ctx);
Radek Krejci09c77442021-04-26 11:10:34 +02001824 assert(path && ((path[0] == '/') || parent));
1825 assert(!(options & LYD_NEW_PATH_BIN_VALUE) || !(options & LYD_NEW_PATH_CANON_VALUE));
Michal Vasko00cbf532020-06-15 13:58:47 +02001826
1827 if (!ctx) {
Michal Vaskob7be7a82020-08-20 09:09:04 +02001828 ctx = LYD_CTX(parent);
Michal Vasko00cbf532020-06-15 13:58:47 +02001829 }
Radek Krejci09c77442021-04-26 11:10:34 +02001830 if (value && !value_len) {
1831 value_len = strlen(value);
1832 }
1833 if (options & LYD_NEW_PATH_BIN_VALUE) {
1834 format = LY_VALUE_LYB;
1835 } else if (options & LYD_NEW_PATH_CANON_VALUE) {
1836 format = LY_VALUE_CANON;
1837 } else {
1838 format = LY_VALUE_JSON;
1839 }
Michal Vasko00cbf532020-06-15 13:58:47 +02001840
1841 /* parse path */
Michal Vaskoed725d72021-06-23 12:03:45 +02001842 LY_CHECK_GOTO(ret = ly_path_parse(ctx, NULL, path, strlen(path), 0, LY_PATH_BEGIN_EITHER, LY_PATH_PREFIX_OPTIONAL,
1843 LY_PATH_PRED_SIMPLE, &exp), cleanup);
Michal Vasko00cbf532020-06-15 13:58:47 +02001844
1845 /* compile path */
Michal Vaskoed725d72021-06-23 12:03:45 +02001846 LY_CHECK_GOTO(ret = ly_path_compile(ctx, NULL, parent ? parent->schema : NULL, ext, exp,
Radek Krejci8df109d2021-04-23 12:19:08 +02001847 options & LYD_NEW_PATH_OUTPUT ? LY_PATH_OPER_OUTPUT : LY_PATH_OPER_INPUT, LY_PATH_TARGET_MANY, LY_VALUE_JSON,
Michal Vaskoed725d72021-06-23 12:03:45 +02001848 NULL, &p), cleanup);
Michal Vasko00cbf532020-06-15 13:58:47 +02001849
Michal Vasko6741dc62021-02-04 09:27:45 +01001850 /* check the compiled path before searching existing nodes, it may be shortened */
1851 orig_count = LY_ARRAY_COUNT(p);
Radek Krejci09c77442021-04-26 11:10:34 +02001852 LY_CHECK_GOTO(ret = lyd_new_path_check_find_lypath(p, path, value, value_len, format, options), cleanup);
Michal Vasko00cbf532020-06-15 13:58:47 +02001853
1854 /* try to find any existing nodes in the path */
1855 if (parent) {
1856 ret = ly_path_eval_partial(p, parent, &path_idx, &node);
1857 if (ret == LY_SUCCESS) {
Michal Vasko6741dc62021-02-04 09:27:45 +01001858 if (orig_count == LY_ARRAY_COUNT(p)) {
1859 /* the node exists, are we supposed to update it or is it just a default? */
1860 if (!(options & LYD_NEW_PATH_UPDATE) && !(node->flags & LYD_DEFAULT)) {
1861 LOG_LOCSET(NULL, node, NULL, NULL);
1862 LOGVAL(ctx, LYVE_REFERENCE, "Path \"%s\" already exists", path);
1863 LOG_LOCBACK(0, 1, 0, 0);
1864 ret = LY_EEXIST;
1865 goto cleanup;
1866 }
Michal Vasko00cbf532020-06-15 13:58:47 +02001867
Michal Vasko6741dc62021-02-04 09:27:45 +01001868 /* update the existing node */
Radek Krejci09c77442021-04-26 11:10:34 +02001869 ret = lyd_new_path_update(node, value, value_len, value_type, format, &nparent, &nnode);
Michal Vasko6741dc62021-02-04 09:27:45 +01001870 goto cleanup;
1871 } /* else we were not searching for the whole path */
Michal Vasko00cbf532020-06-15 13:58:47 +02001872 } else if (ret == LY_EINCOMPLETE) {
1873 /* some nodes were found, adjust the iterator to the next segment */
1874 ++path_idx;
1875 } else if (ret == LY_ENOTFOUND) {
1876 /* we will create the nodes from top-level, default behavior (absolute path), or from the parent (relative path) */
Michal Vasko45b0d202020-11-06 17:20:46 +01001877 if (lysc_data_parent(p[0].node)) {
Michal Vasko00cbf532020-06-15 13:58:47 +02001878 node = parent;
1879 }
1880 } else {
1881 /* error */
1882 goto cleanup;
1883 }
1884 }
1885
Michal Vasko6741dc62021-02-04 09:27:45 +01001886 /* restore the full path for creating new nodes */
1887 while (orig_count > LY_ARRAY_COUNT(p)) {
1888 LY_ARRAY_INCREMENT(p);
1889 }
1890
Michal Vasko00cbf532020-06-15 13:58:47 +02001891 /* create all the non-existing nodes in a loop */
Michal Vaskod989ba02020-08-24 10:59:24 +02001892 for ( ; path_idx < LY_ARRAY_COUNT(p); ++path_idx) {
Michal Vasko00cbf532020-06-15 13:58:47 +02001893 cur_parent = node;
1894 schema = p[path_idx].node;
1895
1896 switch (schema->nodetype) {
1897 case LYS_LIST:
Michal Vaskoe78faec2021-04-08 17:24:43 +02001898 if (lysc_is_dup_inst_list(schema)) {
1899 /* create key-less list instance */
1900 LY_CHECK_GOTO(ret = lyd_create_inner(schema, &node), cleanup);
1901 } else if ((options & LYD_NEW_PATH_OPAQ) && (p[path_idx].pred_type == LY_PATH_PREDTYPE_NONE)) {
1902 /* creating opaque list without keys */
1903 LY_CHECK_GOTO(ret = lyd_create_opaq(ctx, schema->name, strlen(schema->name), NULL, 0,
Radek Krejci8df109d2021-04-23 12:19:08 +02001904 schema->module->name, strlen(schema->module->name), NULL, 0, NULL, LY_VALUE_JSON, NULL,
Michal Vaskoe78faec2021-04-08 17:24:43 +02001905 LYD_NODEHINT_LIST, &node), cleanup);
1906 } else {
1907 /* create standard list instance */
1908 assert(p[path_idx].pred_type == LY_PATH_PREDTYPE_LIST);
1909 LY_CHECK_GOTO(ret = lyd_create_list(schema, p[path_idx].predicates, &node), cleanup);
Michal Vasko00cbf532020-06-15 13:58:47 +02001910 }
Michal Vaskoe78faec2021-04-08 17:24:43 +02001911 break;
Michal Vasko00cbf532020-06-15 13:58:47 +02001912 case LYS_CONTAINER:
1913 case LYS_NOTIF:
1914 case LYS_RPC:
1915 case LYS_ACTION:
1916 LY_CHECK_GOTO(ret = lyd_create_inner(schema, &node), cleanup);
1917 break;
1918 case LYS_LEAFLIST:
Michal Vaskoe78faec2021-04-08 17:24:43 +02001919 if ((options & LYD_NEW_PATH_OPAQ) && (p[path_idx].pred_type != LY_PATH_PREDTYPE_LEAFLIST)) {
1920 /* we have not checked this only for dup-inst lists, otherwise it must be opaque */
1921 r = LY_EVALID;
1922 if (lysc_is_dup_inst_list(schema)) {
1923 /* validate value */
Radek Krejci09c77442021-04-26 11:10:34 +02001924 r = lyd_value_validate(NULL, schema, value ? value : "", value_len, NULL, NULL, NULL);
Michal Vaskoe78faec2021-04-08 17:24:43 +02001925 }
1926 if (r && (r != LY_EINCOMPLETE)) {
1927 /* creating opaque leaf-list */
Radek Krejci09c77442021-04-26 11:10:34 +02001928 LY_CHECK_GOTO(ret = lyd_create_opaq(ctx, schema->name, strlen(schema->name), value, value_len,
1929 schema->module->name, strlen(schema->module->name), NULL, 0, NULL, format, NULL,
1930 LYD_NODEHINT_LEAFLIST, &node), cleanup);
Michal Vaskoe78faec2021-04-08 17:24:43 +02001931 break;
1932 }
1933 }
1934
1935 /* get value to set */
1936 if (p[path_idx].pred_type == LY_PATH_PREDTYPE_LEAFLIST) {
1937 val = &p[path_idx].predicates[0].value;
Michal Vaskoe78faec2021-04-08 17:24:43 +02001938 }
1939
1940 /* create a leaf-list instance */
1941 if (val) {
Michal Vasko00cbf532020-06-15 13:58:47 +02001942 LY_CHECK_GOTO(ret = lyd_create_term2(schema, &p[path_idx].predicates[0].value, &node), cleanup);
Michal Vaskoe78faec2021-04-08 17:24:43 +02001943 } else {
Radek Krejci09c77442021-04-26 11:10:34 +02001944 LY_CHECK_GOTO(ret = lyd_create_term(schema, value, value_len, NULL, format, NULL, LYD_HINT_DATA,
1945 NULL, &node), cleanup);
Michal Vasko00cbf532020-06-15 13:58:47 +02001946 }
1947 break;
1948 case LYS_LEAF:
Michal Vasko35880332020-12-08 13:08:12 +01001949 if (lysc_is_key(schema)) {
1950 /* it must have been already created or some error will occur later */
1951 assert(cur_parent);
1952 node = lyd_child(cur_parent);
1953 assert(node && (node->schema == schema));
1954 goto next_iter;
1955 }
1956
Michal Vaskoe78faec2021-04-08 17:24:43 +02001957 if (options & LYD_NEW_PATH_OPAQ) {
1958 /* validate value */
Radek Krejci09c77442021-04-26 11:10:34 +02001959 r = lyd_value_validate(NULL, schema, value ? value : "", value_len, NULL, NULL, NULL);
Michal Vaskoe78faec2021-04-08 17:24:43 +02001960 if (r && (r != LY_EINCOMPLETE)) {
1961 /* creating opaque leaf */
Radek Krejci09c77442021-04-26 11:10:34 +02001962 LY_CHECK_GOTO(ret = lyd_create_opaq(ctx, schema->name, strlen(schema->name), value, value_len,
1963 schema->module->name, strlen(schema->module->name), NULL, 0, NULL, format, NULL, 0, &node),
1964 cleanup);
Michal Vaskoe78faec2021-04-08 17:24:43 +02001965 break;
1966 }
1967 }
1968
Michal Vaskoe78faec2021-04-08 17:24:43 +02001969 /* create a leaf instance */
Radek Krejci09c77442021-04-26 11:10:34 +02001970 LY_CHECK_GOTO(ret = lyd_create_term(schema, value, value_len, NULL, format, NULL, LYD_HINT_DATA, NULL,
1971 &node), cleanup);
Michal Vasko00cbf532020-06-15 13:58:47 +02001972 break;
1973 case LYS_ANYDATA:
1974 case LYS_ANYXML:
Michal Vasko366a4a12020-12-04 16:23:57 +01001975 LY_CHECK_GOTO(ret = lyd_create_any(schema, value, value_type, 0, &node), cleanup);
Michal Vasko00cbf532020-06-15 13:58:47 +02001976 break;
1977 default:
1978 LOGINT(ctx);
1979 ret = LY_EINT;
1980 goto cleanup;
1981 }
1982
1983 if (cur_parent) {
1984 /* connect to the parent */
1985 lyd_insert_node(cur_parent, NULL, node);
1986 } else if (parent) {
1987 /* connect to top-level siblings */
1988 lyd_insert_node(NULL, &parent, node);
1989 }
1990
Michal Vasko35880332020-12-08 13:08:12 +01001991next_iter:
Michal Vasko00cbf532020-06-15 13:58:47 +02001992 /* update remembered nodes */
1993 if (!nparent) {
1994 nparent = node;
1995 }
1996 nnode = node;
1997 }
1998
1999cleanup:
2000 lyxp_expr_free(ctx, exp);
Michal Vasko6741dc62021-02-04 09:27:45 +01002001 if (p) {
2002 while (orig_count > LY_ARRAY_COUNT(p)) {
2003 LY_ARRAY_INCREMENT(p);
2004 }
2005 }
Michal Vasko00cbf532020-06-15 13:58:47 +02002006 ly_path_free(ctx, p);
2007 if (!ret) {
2008 /* set out params only on success */
2009 if (new_parent) {
2010 *new_parent = nparent;
2011 }
2012 if (new_node) {
2013 *new_node = nnode;
2014 }
Michal Vaskof4b95ba2020-12-11 08:42:33 +01002015 } else {
2016 lyd_free_tree(nparent);
Michal Vasko00cbf532020-06-15 13:58:47 +02002017 }
2018 return ret;
2019}
2020
Radek Krejci95ccd1b2021-03-12 14:57:22 +01002021API LY_ERR
2022lyd_new_path(struct lyd_node *parent, const struct ly_ctx *ctx, const char *path, const char *value, uint32_t options,
2023 struct lyd_node **node)
2024{
Radek Krejci09c77442021-04-26 11:10:34 +02002025 LY_CHECK_ARG_RET(ctx, parent || ctx, path, (path[0] == '/') || parent,
2026 !(options & LYD_NEW_PATH_BIN_VALUE) || !(options & LYD_NEW_PATH_CANON_VALUE), LY_EINVAL);
2027
2028 return lyd_new_path_(parent, ctx, NULL, path, value, 0, LYD_ANYDATA_STRING, options, node, NULL);
Radek Krejci95ccd1b2021-03-12 14:57:22 +01002029}
2030
2031API LY_ERR
2032lyd_new_path2(struct lyd_node *parent, const struct ly_ctx *ctx, const char *path, const void *value,
Radek Krejci09c77442021-04-26 11:10:34 +02002033 size_t value_len, LYD_ANYDATA_VALUETYPE value_type, uint32_t options, struct lyd_node **new_parent,
2034 struct lyd_node **new_node)
Radek Krejci95ccd1b2021-03-12 14:57:22 +01002035{
Radek Krejci09c77442021-04-26 11:10:34 +02002036 LY_CHECK_ARG_RET(ctx, parent || ctx, path, (path[0] == '/') || parent,
2037 !(options & LYD_NEW_PATH_BIN_VALUE) || !(options & LYD_NEW_PATH_CANON_VALUE), LY_EINVAL);
2038 return lyd_new_path_(parent, ctx, NULL, path, value, value_len, value_type, options, new_parent, new_node);
Radek Krejci95ccd1b2021-03-12 14:57:22 +01002039}
2040
2041API LY_ERR
2042lyd_new_ext_path(struct lyd_node *parent, const struct lysc_ext_instance *ext, const char *path, const void *value,
2043 uint32_t options, struct lyd_node **node)
2044{
2045 const struct ly_ctx *ctx = ext ? ext->module->ctx : NULL;
2046
Radek Krejci09c77442021-04-26 11:10:34 +02002047 LY_CHECK_ARG_RET(ctx, ext, path, (path[0] == '/') || parent,
2048 !(options & LYD_NEW_PATH_BIN_VALUE) || !(options & LYD_NEW_PATH_CANON_VALUE), LY_EINVAL);
2049 return lyd_new_path_(parent, ctx, ext, path, value, 0, LYD_ANYDATA_STRING, options, node, NULL);
Radek Krejci95ccd1b2021-03-12 14:57:22 +01002050}
2051
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002052LY_ERR
2053lyd_new_implicit_r(struct lyd_node *parent, struct lyd_node **first, const struct lysc_node *sparent,
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002054 const struct lys_module *mod, struct ly_set *node_when, struct ly_set *node_exts, struct ly_set *node_types,
2055 uint32_t impl_opts, struct lyd_node **diff)
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002056{
2057 LY_ERR ret;
Michal Vaskod1e53b92021-01-28 13:11:06 +01002058 const struct lysc_node *iter = NULL;
Radek Krejci2b18bf12020-11-06 11:20:20 +01002059 struct lyd_node *node = NULL;
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002060 struct lyd_value **dflts;
2061 LY_ARRAY_COUNT_TYPE u;
Michal Vasko630d9892020-12-08 17:11:08 +01002062 uint32_t getnext_opts;
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002063
2064 assert(first && (parent || sparent || mod));
2065
2066 if (!sparent && parent) {
2067 sparent = parent->schema;
2068 }
2069
Michal Vasko630d9892020-12-08 17:11:08 +01002070 getnext_opts = LYS_GETNEXT_WITHCHOICE;
2071 if (impl_opts & LYD_IMPLICIT_OUTPUT) {
2072 getnext_opts |= LYS_GETNEXT_OUTPUT;
2073 }
2074
2075 while ((iter = lys_getnext(iter, sparent, mod ? mod->compiled : NULL, getnext_opts))) {
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002076 if ((impl_opts & LYD_IMPLICIT_NO_STATE) && (iter->flags & LYS_CONFIG_R)) {
2077 continue;
Michal Vasko44b19a12020-08-07 09:21:30 +02002078 } else if ((impl_opts & LYD_IMPLICIT_NO_CONFIG) && (iter->flags & LYS_CONFIG_W)) {
2079 continue;
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002080 }
2081
2082 switch (iter->nodetype) {
2083 case LYS_CHOICE:
Michal Vaskobcf4d7d2020-11-18 18:16:49 +01002084 node = lys_getnext_data(NULL, *first, NULL, iter, NULL);
2085 if (!node && ((struct lysc_node_choice *)iter)->dflt) {
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002086 /* create default case data */
Michal Vasko14ed9cd2021-01-28 14:16:25 +01002087 LY_CHECK_RET(lyd_new_implicit_r(parent, first, &((struct lysc_node_choice *)iter)->dflt->node,
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002088 NULL, node_when, node_exts, node_types, impl_opts, diff));
Michal Vaskobcf4d7d2020-11-18 18:16:49 +01002089 } else if (node) {
2090 /* create any default data in the existing case */
2091 assert(node->schema->parent->nodetype == LYS_CASE);
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002092 LY_CHECK_RET(lyd_new_implicit_r(parent, first, node->schema->parent, NULL, node_when, node_exts, node_types,
Michal Vaskobcf4d7d2020-11-18 18:16:49 +01002093 impl_opts, diff));
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002094 }
2095 break;
2096 case LYS_CONTAINER:
2097 if (!(iter->flags & LYS_PRESENCE) && lyd_find_sibling_val(*first, iter, NULL, 0, NULL)) {
2098 /* create default NP container */
2099 LY_CHECK_RET(lyd_create_inner(iter, &node));
Michal Vaskof4d67ea2021-03-31 13:53:21 +02002100 node->flags = LYD_DEFAULT | (lysc_has_when(iter) ? LYD_WHEN_TRUE : 0);
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002101 lyd_insert_node(parent, first, node);
2102
Michal Vaskof4d67ea2021-03-31 13:53:21 +02002103 if (lysc_has_when(iter) && node_when) {
Michal Vaskoe16c7b72021-02-26 10:39:06 +01002104 /* remember to resolve when */
2105 LY_CHECK_RET(ly_set_add(node_when, node, 1, NULL));
2106 }
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002107 if (node_exts) {
2108 /* remember to call all the extension's validation callbacks */
2109 LY_CHECK_RET(lysc_node_ext_tovalidate(node_exts, node));
2110 }
Michal Vaskoe49b6322020-11-05 17:38:36 +01002111 if (diff) {
2112 /* add into diff */
2113 LY_CHECK_RET(lyd_val_diff_add(node, LYD_DIFF_OP_CREATE, diff));
2114 }
2115
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002116 /* create any default children */
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002117 LY_CHECK_RET(lyd_new_implicit_r(node, lyd_node_child_p(node), NULL, NULL, node_when, node_exts, node_types,
Michal Vasko69730152020-10-09 16:30:07 +02002118 impl_opts, diff));
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002119 }
2120 break;
2121 case LYS_LEAF:
Michal Vasko69730152020-10-09 16:30:07 +02002122 if (!(impl_opts & LYD_IMPLICIT_NO_DEFAULTS) && ((struct lysc_node_leaf *)iter)->dflt &&
2123 lyd_find_sibling_val(*first, iter, NULL, 0, NULL)) {
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002124 /* create default leaf */
2125 ret = lyd_create_term2(iter, ((struct lysc_node_leaf *)iter)->dflt, &node);
2126 if (ret == LY_EINCOMPLETE) {
2127 if (node_types) {
2128 /* remember to resolve type */
Radek Krejci3d92e442020-10-12 12:48:13 +02002129 LY_CHECK_RET(ly_set_add(node_types, node, 1, NULL));
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002130 }
2131 } else if (ret) {
2132 return ret;
2133 }
Michal Vaskof4d67ea2021-03-31 13:53:21 +02002134 node->flags = LYD_DEFAULT | (lysc_has_when(iter) ? LYD_WHEN_TRUE : 0);
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002135 lyd_insert_node(parent, first, node);
2136
Michal Vaskof4d67ea2021-03-31 13:53:21 +02002137 if (lysc_has_when(iter) && node_when) {
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002138 /* remember to resolve when */
Radek Krejci3d92e442020-10-12 12:48:13 +02002139 LY_CHECK_RET(ly_set_add(node_when, node, 1, NULL));
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002140 }
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002141 if (node_exts) {
2142 /* remember to call all the extension's validation callbacks */
2143 LY_CHECK_RET(lysc_node_ext_tovalidate(node_exts, node));
2144 }
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002145 if (diff) {
2146 /* add into diff */
2147 LY_CHECK_RET(lyd_val_diff_add(node, LYD_DIFF_OP_CREATE, diff));
2148 }
2149 }
2150 break;
2151 case LYS_LEAFLIST:
Michal Vasko69730152020-10-09 16:30:07 +02002152 if (!(impl_opts & LYD_IMPLICIT_NO_DEFAULTS) && ((struct lysc_node_leaflist *)iter)->dflts &&
2153 lyd_find_sibling_val(*first, iter, NULL, 0, NULL)) {
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002154 /* create all default leaf-lists */
2155 dflts = ((struct lysc_node_leaflist *)iter)->dflts;
2156 LY_ARRAY_FOR(dflts, u) {
2157 ret = lyd_create_term2(iter, dflts[u], &node);
2158 if (ret == LY_EINCOMPLETE) {
2159 if (node_types) {
2160 /* remember to resolve type */
Radek Krejci3d92e442020-10-12 12:48:13 +02002161 LY_CHECK_RET(ly_set_add(node_types, node, 1, NULL));
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002162 }
2163 } else if (ret) {
2164 return ret;
2165 }
Michal Vaskof4d67ea2021-03-31 13:53:21 +02002166 node->flags = LYD_DEFAULT | (lysc_has_when(iter) ? LYD_WHEN_TRUE : 0);
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002167 lyd_insert_node(parent, first, node);
2168
Michal Vaskof4d67ea2021-03-31 13:53:21 +02002169 if (lysc_has_when(iter) && node_when) {
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002170 /* remember to resolve when */
Radek Krejci3d92e442020-10-12 12:48:13 +02002171 LY_CHECK_RET(ly_set_add(node_when, node, 1, NULL));
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002172 }
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002173 if (node_exts) {
2174 /* remember to call all the extension's validation callbacks */
2175 LY_CHECK_RET(lysc_node_ext_tovalidate(node_exts, node));
2176 }
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002177 if (diff) {
2178 /* add into diff */
2179 LY_CHECK_RET(lyd_val_diff_add(node, LYD_DIFF_OP_CREATE, diff));
2180 }
2181 }
2182 }
2183 break;
2184 default:
2185 /* without defaults */
2186 break;
2187 }
2188 }
2189
2190 return LY_SUCCESS;
2191}
2192
2193API LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +02002194lyd_new_implicit_tree(struct lyd_node *tree, uint32_t implicit_options, struct lyd_node **diff)
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002195{
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002196 LY_ERR ret = LY_SUCCESS;
Michal Vasko3488ada2020-12-03 14:18:19 +01002197 struct lyd_node *node;
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002198 struct ly_set node_when = {0}, node_exts = {0};
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002199
2200 LY_CHECK_ARG_RET(NULL, tree, LY_EINVAL);
2201 if (diff) {
2202 *diff = NULL;
2203 }
2204
Michal Vasko56daf732020-08-10 10:57:18 +02002205 LYD_TREE_DFS_BEGIN(tree, node) {
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002206 /* skip added default nodes */
Michal Vasko69730152020-10-09 16:30:07 +02002207 if (((node->flags & (LYD_DEFAULT | LYD_NEW)) != (LYD_DEFAULT | LYD_NEW)) &&
2208 (node->schema->nodetype & LYD_NODE_INNER)) {
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002209 LY_CHECK_GOTO(ret = lyd_new_implicit_r(node, lyd_node_child_p(node), NULL, NULL, &node_when, &node_exts,
Michal Vaskoc43c8ab2021-03-05 13:32:44 +01002210 NULL, implicit_options, diff), cleanup);
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002211 }
2212
Michal Vasko56daf732020-08-10 10:57:18 +02002213 LYD_TREE_DFS_END(tree, node);
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002214 }
2215
Michal Vasko3488ada2020-12-03 14:18:19 +01002216 /* resolve when and remove any invalid defaults */
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002217 LY_CHECK_GOTO(ret = lyd_validate_unres(&tree, NULL, &node_when, &node_exts, NULL, NULL, diff), cleanup);
Michal Vasko3488ada2020-12-03 14:18:19 +01002218
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002219cleanup:
Michal Vasko3488ada2020-12-03 14:18:19 +01002220 ly_set_erase(&node_when, NULL);
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002221 ly_set_erase(&node_exts, NULL);
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002222 if (ret && diff) {
2223 lyd_free_all(*diff);
2224 *diff = NULL;
2225 }
2226 return ret;
2227}
2228
2229API LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +02002230lyd_new_implicit_all(struct lyd_node **tree, const struct ly_ctx *ctx, uint32_t implicit_options, struct lyd_node **diff)
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002231{
2232 const struct lys_module *mod;
2233 struct lyd_node *d = NULL;
2234 uint32_t i = 0;
2235 LY_ERR ret = LY_SUCCESS;
2236
2237 LY_CHECK_ARG_RET(ctx, tree, *tree || ctx, LY_EINVAL);
2238 if (diff) {
2239 *diff = NULL;
2240 }
2241 if (!ctx) {
Michal Vaskob7be7a82020-08-20 09:09:04 +02002242 ctx = LYD_CTX(*tree);
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002243 }
2244
2245 /* add nodes for each module one-by-one */
2246 while ((mod = ly_ctx_get_module_iter(ctx, &i))) {
2247 if (!mod->implemented) {
2248 continue;
2249 }
2250
2251 LY_CHECK_GOTO(ret = lyd_new_implicit_module(tree, mod, implicit_options, diff ? &d : NULL), cleanup);
2252 if (d) {
2253 /* merge into one diff */
2254 lyd_insert_sibling(*diff, d, diff);
2255
2256 d = NULL;
2257 }
2258 }
2259
2260cleanup:
2261 if (ret && diff) {
2262 lyd_free_all(*diff);
2263 *diff = NULL;
2264 }
2265 return ret;
2266}
2267
2268API LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +02002269lyd_new_implicit_module(struct lyd_node **tree, const struct lys_module *module, uint32_t implicit_options, struct lyd_node **diff)
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002270{
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002271 LY_ERR ret = LY_SUCCESS;
Michal Vasko3488ada2020-12-03 14:18:19 +01002272 struct lyd_node *root, *d = NULL;
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002273 struct ly_set node_when = {0}, node_exts = {0};
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002274
2275 LY_CHECK_ARG_RET(NULL, tree, module, LY_EINVAL);
2276 if (diff) {
2277 *diff = NULL;
2278 }
2279
2280 /* add all top-level defaults for this module */
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002281 LY_CHECK_GOTO(ret = lyd_new_implicit_r(NULL, tree, NULL, module, &node_when, &node_exts, NULL, implicit_options, diff), cleanup);
Michal Vasko3488ada2020-12-03 14:18:19 +01002282
2283 /* resolve when and remove any invalid defaults */
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002284 LY_CHECK_GOTO(ret = lyd_validate_unres(tree, module, &node_when, &node_exts, NULL, NULL, diff), cleanup);
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002285
2286 /* process nested nodes */
2287 LY_LIST_FOR(*tree, root) {
2288 /* skip added default nodes */
2289 if ((root->flags & (LYD_DEFAULT | LYD_NEW)) != (LYD_DEFAULT | LYD_NEW)) {
2290 LY_CHECK_GOTO(ret = lyd_new_implicit_tree(root, implicit_options, diff ? &d : NULL), cleanup);
2291
2292 if (d) {
2293 /* merge into one diff */
2294 lyd_insert_sibling(*diff, d, diff);
2295
2296 d = NULL;
2297 }
2298 }
2299 }
2300
2301cleanup:
Michal Vasko3488ada2020-12-03 14:18:19 +01002302 ly_set_erase(&node_when, NULL);
Radek Krejci4f2e3e52021-03-30 14:20:28 +02002303 ly_set_erase(&node_exts, NULL);
Michal Vaskoa6669ba2020-08-06 16:14:26 +02002304 if (ret && diff) {
2305 lyd_free_all(*diff);
2306 *diff = NULL;
2307 }
2308 return ret;
2309}
2310
Michal Vasko90932a92020-02-12 14:33:03 +01002311struct lyd_node *
Michal Vaskob104f112020-07-17 09:54:54 +02002312lyd_insert_get_next_anchor(const struct lyd_node *first_sibling, const struct lyd_node *new_node)
Michal Vasko90932a92020-02-12 14:33:03 +01002313{
Michal Vaskob104f112020-07-17 09:54:54 +02002314 const struct lysc_node *schema, *sparent;
Michal Vasko90932a92020-02-12 14:33:03 +01002315 struct lyd_node *match = NULL;
Radek Krejci857189e2020-09-01 13:26:36 +02002316 ly_bool found;
Michal Vasko93b16062020-12-09 18:14:18 +01002317 uint32_t getnext_opts;
Michal Vasko90932a92020-02-12 14:33:03 +01002318
Michal Vaskob104f112020-07-17 09:54:54 +02002319 assert(new_node);
2320
2321 if (!first_sibling || !new_node->schema) {
2322 /* insert at the end, no next anchor */
Michal Vasko90932a92020-02-12 14:33:03 +01002323 return NULL;
2324 }
2325
Michal Vasko93b16062020-12-09 18:14:18 +01002326 getnext_opts = 0;
Michal Vaskod1e53b92021-01-28 13:11:06 +01002327 if (new_node->schema->flags & LYS_IS_OUTPUT) {
Michal Vasko93b16062020-12-09 18:14:18 +01002328 getnext_opts = LYS_GETNEXT_OUTPUT;
2329 }
2330
Michal Vaskob104f112020-07-17 09:54:54 +02002331 if (first_sibling->parent && first_sibling->parent->children_ht) {
2332 /* find the anchor using hashes */
2333 sparent = first_sibling->parent->schema;
Michal Vasko93b16062020-12-09 18:14:18 +01002334 schema = lys_getnext(new_node->schema, sparent, NULL, getnext_opts);
Michal Vaskob104f112020-07-17 09:54:54 +02002335 while (schema) {
2336 /* keep trying to find the first existing instance of the closest following schema sibling,
2337 * otherwise return NULL - inserting at the end */
2338 if (!lyd_find_sibling_schema(first_sibling, schema, &match)) {
2339 break;
2340 }
2341
Michal Vasko93b16062020-12-09 18:14:18 +01002342 schema = lys_getnext(schema, sparent, NULL, getnext_opts);
Michal Vaskob104f112020-07-17 09:54:54 +02002343 }
2344 } else {
2345 /* find the anchor without hashes */
2346 match = (struct lyd_node *)first_sibling;
2347 if (!lysc_data_parent(new_node->schema)) {
2348 /* we are in top-level, skip all the data from preceding modules */
2349 LY_LIST_FOR(match, match) {
2350 if (!match->schema || (strcmp(lyd_owner_module(match)->name, lyd_owner_module(new_node)->name) >= 0)) {
2351 break;
2352 }
2353 }
2354 }
2355
2356 /* get the first schema sibling */
2357 sparent = lysc_data_parent(new_node->schema);
Michal Vasko93b16062020-12-09 18:14:18 +01002358 schema = lys_getnext(NULL, sparent, new_node->schema->module->compiled, getnext_opts);
Michal Vaskob104f112020-07-17 09:54:54 +02002359
2360 found = 0;
2361 LY_LIST_FOR(match, match) {
2362 if (!match->schema || (lyd_owner_module(match) != lyd_owner_module(new_node))) {
2363 /* we have found an opaque node, which must be at the end, so use it OR
2364 * modules do not match, so we must have traversed all the data from new_node module (if any),
2365 * we have found the first node of the next module, that is what we want */
2366 break;
2367 }
2368
2369 /* skip schema nodes until we find the instantiated one */
2370 while (!found) {
2371 if (new_node->schema == schema) {
2372 /* we have found the schema of the new node, continue search to find the first
2373 * data node with a different schema (after our schema) */
2374 found = 1;
2375 break;
2376 }
2377 if (match->schema == schema) {
2378 /* current node (match) is a data node still before the new node, continue search in data */
2379 break;
2380 }
Michal Vasko93b16062020-12-09 18:14:18 +01002381 schema = lys_getnext(schema, sparent, new_node->schema->module->compiled, getnext_opts);
Michal Vaskob104f112020-07-17 09:54:54 +02002382 assert(schema);
2383 }
2384
2385 if (found && (match->schema != new_node->schema)) {
2386 /* find the next node after we have found our node schema data instance */
2387 break;
2388 }
2389 }
Michal Vasko90932a92020-02-12 14:33:03 +01002390 }
2391
2392 return match;
2393}
2394
2395/**
2396 * @brief Insert node after a sibling.
2397 *
Michal Vasko9f96a052020-03-10 09:41:45 +01002398 * Handles inserting into NP containers and key-less lists.
2399 *
Michal Vasko90932a92020-02-12 14:33:03 +01002400 * @param[in] sibling Sibling to insert after.
2401 * @param[in] node Node to insert.
2402 */
2403static void
Michal Vaskof03ed032020-03-04 13:31:44 +01002404lyd_insert_after_node(struct lyd_node *sibling, struct lyd_node *node)
Michal Vasko90932a92020-02-12 14:33:03 +01002405{
Michal Vasko0249f7c2020-03-05 16:36:40 +01002406 struct lyd_node_inner *par;
2407
Michal Vasko90932a92020-02-12 14:33:03 +01002408 assert(!node->next && (node->prev == node));
2409
2410 node->next = sibling->next;
2411 node->prev = sibling;
2412 sibling->next = node;
2413 if (node->next) {
2414 /* sibling had a succeeding node */
2415 node->next->prev = node;
2416 } else {
2417 /* sibling was last, find first sibling and change its prev */
2418 if (sibling->parent) {
2419 sibling = sibling->parent->child;
2420 } else {
Michal Vaskod989ba02020-08-24 10:59:24 +02002421 for ( ; sibling->prev->next != node; sibling = sibling->prev) {}
Michal Vasko90932a92020-02-12 14:33:03 +01002422 }
2423 sibling->prev = node;
2424 }
2425 node->parent = sibling->parent;
Michal Vasko0249f7c2020-03-05 16:36:40 +01002426
Michal Vasko9f96a052020-03-10 09:41:45 +01002427 for (par = node->parent; par; par = par->parent) {
2428 if ((par->flags & LYD_DEFAULT) && !(node->flags & LYD_DEFAULT)) {
2429 /* remove default flags from NP containers */
Michal Vasko0249f7c2020-03-05 16:36:40 +01002430 par->flags &= ~LYD_DEFAULT;
2431 }
2432 }
Michal Vasko90932a92020-02-12 14:33:03 +01002433}
2434
2435/**
2436 * @brief Insert node before a sibling.
2437 *
Michal Vasko9f96a052020-03-10 09:41:45 +01002438 * Handles inserting into NP containers and key-less lists.
2439 *
Michal Vasko90932a92020-02-12 14:33:03 +01002440 * @param[in] sibling Sibling to insert before.
2441 * @param[in] node Node to insert.
2442 */
2443static void
Michal Vaskof03ed032020-03-04 13:31:44 +01002444lyd_insert_before_node(struct lyd_node *sibling, struct lyd_node *node)
Michal Vasko90932a92020-02-12 14:33:03 +01002445{
Michal Vasko0249f7c2020-03-05 16:36:40 +01002446 struct lyd_node_inner *par;
2447
Michal Vasko90932a92020-02-12 14:33:03 +01002448 assert(!node->next && (node->prev == node));
2449
2450 node->next = sibling;
2451 /* covers situation of sibling being first */
2452 node->prev = sibling->prev;
2453 sibling->prev = node;
2454 if (node->prev->next) {
2455 /* sibling had a preceding node */
2456 node->prev->next = node;
2457 } else if (sibling->parent) {
2458 /* sibling was first and we must also change parent child pointer */
2459 sibling->parent->child = node;
2460 }
2461 node->parent = sibling->parent;
Michal Vasko0249f7c2020-03-05 16:36:40 +01002462
Michal Vasko9f96a052020-03-10 09:41:45 +01002463 for (par = node->parent; par; par = par->parent) {
2464 if ((par->flags & LYD_DEFAULT) && !(node->flags & LYD_DEFAULT)) {
2465 /* remove default flags from NP containers */
Michal Vasko0249f7c2020-03-05 16:36:40 +01002466 par->flags &= ~LYD_DEFAULT;
2467 }
2468 }
Michal Vasko90932a92020-02-12 14:33:03 +01002469}
2470
2471/**
Michal Vaskob104f112020-07-17 09:54:54 +02002472 * @brief Insert node as the first and only child of a parent.
Michal Vasko90932a92020-02-12 14:33:03 +01002473 *
Michal Vasko9f96a052020-03-10 09:41:45 +01002474 * Handles inserting into NP containers and key-less lists.
2475 *
Michal Vasko90932a92020-02-12 14:33:03 +01002476 * @param[in] parent Parent to insert into.
2477 * @param[in] node Node to insert.
2478 */
2479static void
Michal Vaskob104f112020-07-17 09:54:54 +02002480lyd_insert_only_child(struct lyd_node *parent, struct lyd_node *node)
Michal Vasko90932a92020-02-12 14:33:03 +01002481{
2482 struct lyd_node_inner *par;
2483
Radek Krejcia1c1e542020-09-29 16:06:52 +02002484 assert(parent && !lyd_child(parent) && !node->next && (node->prev == node));
Michal Vasko52927e22020-03-16 17:26:14 +01002485 assert(!parent->schema || (parent->schema->nodetype & LYD_NODE_INNER));
Michal Vasko90932a92020-02-12 14:33:03 +01002486
2487 par = (struct lyd_node_inner *)parent;
2488
Michal Vaskob104f112020-07-17 09:54:54 +02002489 par->child = node;
Michal Vasko90932a92020-02-12 14:33:03 +01002490 node->parent = par;
Michal Vasko0249f7c2020-03-05 16:36:40 +01002491
Michal Vaskod989ba02020-08-24 10:59:24 +02002492 for ( ; par; par = par->parent) {
Michal Vasko9f96a052020-03-10 09:41:45 +01002493 if ((par->flags & LYD_DEFAULT) && !(node->flags & LYD_DEFAULT)) {
2494 /* remove default flags from NP containers */
Michal Vasko0249f7c2020-03-05 16:36:40 +01002495 par->flags &= ~LYD_DEFAULT;
2496 }
2497 }
Michal Vasko751cb4d2020-07-14 12:25:28 +02002498}
Michal Vasko0249f7c2020-03-05 16:36:40 +01002499
Michal Vasko751cb4d2020-07-14 12:25:28 +02002500/**
2501 * @brief Learn whether a list instance has all the keys.
2502 *
2503 * @param[in] list List instance to check.
2504 * @return non-zero if all the keys were found,
2505 * @return 0 otherwise.
2506 */
2507static int
2508lyd_insert_has_keys(const struct lyd_node *list)
2509{
2510 const struct lyd_node *key;
2511 const struct lysc_node *skey = NULL;
2512
2513 assert(list->schema->nodetype == LYS_LIST);
Radek Krejcia1c1e542020-09-29 16:06:52 +02002514 key = lyd_child(list);
Michal Vasko751cb4d2020-07-14 12:25:28 +02002515 while ((skey = lys_getnext(skey, list->schema, NULL, 0)) && (skey->flags & LYS_KEY)) {
2516 if (!key || (key->schema != skey)) {
2517 /* key missing */
2518 return 0;
2519 }
2520
2521 key = key->next;
2522 }
2523
2524 /* all keys found */
2525 return 1;
Michal Vasko90932a92020-02-12 14:33:03 +01002526}
2527
2528void
Michal Vaskob104f112020-07-17 09:54:54 +02002529lyd_insert_node(struct lyd_node *parent, struct lyd_node **first_sibling_p, struct lyd_node *node)
Michal Vasko90932a92020-02-12 14:33:03 +01002530{
Michal Vaskob104f112020-07-17 09:54:54 +02002531 struct lyd_node *anchor, *first_sibling;
Michal Vasko90932a92020-02-12 14:33:03 +01002532
Michal Vaskob104f112020-07-17 09:54:54 +02002533 /* inserting list without its keys is not supported */
2534 assert((parent || first_sibling_p) && node && (node->hash || !node->schema));
Michal Vaskof756c942020-11-06 17:21:37 +01002535 assert(!parent || !parent->schema ||
2536 (parent->schema->nodetype & (LYS_CONTAINER | LYS_LIST | LYS_RPC | LYS_ACTION | LYS_NOTIF)));
Michal Vasko9b368d32020-02-14 13:53:31 +01002537
Michal Vaskob104f112020-07-17 09:54:54 +02002538 if (!parent && first_sibling_p && (*first_sibling_p) && (*first_sibling_p)->parent) {
Michal Vasko9e685082021-01-29 14:49:09 +01002539 parent = lyd_parent(*first_sibling_p);
Michal Vasko9b368d32020-02-14 13:53:31 +01002540 }
Michal Vasko90932a92020-02-12 14:33:03 +01002541
Michal Vaskob104f112020-07-17 09:54:54 +02002542 /* get first sibling */
Michal Vasko9e685082021-01-29 14:49:09 +01002543 first_sibling = parent ? lyd_child(parent) : *first_sibling_p;
Michal Vasko9f96a052020-03-10 09:41:45 +01002544
Michal Vaskob104f112020-07-17 09:54:54 +02002545 /* find the anchor, our next node, so we can insert before it */
2546 anchor = lyd_insert_get_next_anchor(first_sibling, node);
2547 if (anchor) {
2548 lyd_insert_before_node(anchor, node);
Michal Vasko26123192020-11-09 21:02:34 +01002549 if (!parent && (*first_sibling_p == anchor)) {
2550 /* move first sibling */
2551 *first_sibling_p = node;
2552 }
Michal Vaskob104f112020-07-17 09:54:54 +02002553 } else if (first_sibling) {
2554 lyd_insert_after_node(first_sibling->prev, node);
2555 } else if (parent) {
2556 lyd_insert_only_child(parent, node);
Michal Vasko90932a92020-02-12 14:33:03 +01002557 } else {
Michal Vaskob104f112020-07-17 09:54:54 +02002558 *first_sibling_p = node;
2559 }
2560
2561 /* insert into parent HT */
2562 lyd_insert_hash(node);
2563
2564 /* finish hashes for our parent, if needed and possible */
Michal Vasko9e8de2d2020-09-01 08:17:10 +02002565 if (node->schema && (node->schema->flags & LYS_KEY) && parent && lyd_insert_has_keys(parent)) {
Michal Vaskob104f112020-07-17 09:54:54 +02002566 lyd_hash(parent);
2567
2568 /* now we can insert even the list into its parent HT */
2569 lyd_insert_hash(parent);
Michal Vasko90932a92020-02-12 14:33:03 +01002570 }
Michal Vasko90932a92020-02-12 14:33:03 +01002571}
2572
Michal Vasko717a4c32020-12-07 09:40:10 +01002573/**
2574 * @brief Check schema place of a node to be inserted.
2575 *
2576 * @param[in] parent Schema node of the parent data node.
2577 * @param[in] sibling Schema node of a sibling data node.
2578 * @param[in] schema Schema node if the data node to be inserted.
2579 * @return LY_SUCCESS on success.
2580 * @return LY_EINVAL if the place is invalid.
2581 */
Michal Vaskof03ed032020-03-04 13:31:44 +01002582static LY_ERR
Michal Vasko717a4c32020-12-07 09:40:10 +01002583lyd_insert_check_schema(const struct lysc_node *parent, const struct lysc_node *sibling, const struct lysc_node *schema)
Michal Vaskof03ed032020-03-04 13:31:44 +01002584{
2585 const struct lysc_node *par2;
2586
Michal Vasko62ed12d2020-05-21 10:08:25 +02002587 assert(!parent || !(parent->nodetype & (LYS_CASE | LYS_CHOICE)));
Michal Vasko717a4c32020-12-07 09:40:10 +01002588 assert(!sibling || !(sibling->nodetype & (LYS_CASE | LYS_CHOICE)));
2589 assert(!schema || !(schema->nodetype & (LYS_CASE | LYS_CHOICE)));
Michal Vaskof03ed032020-03-04 13:31:44 +01002590
Michal Vasko717a4c32020-12-07 09:40:10 +01002591 if (!schema || (!parent && !sibling)) {
Michal Vasko71e795e2020-12-04 16:27:37 +01002592 /* opaque nodes can be inserted wherever */
2593 return LY_SUCCESS;
2594 }
2595
Michal Vasko717a4c32020-12-07 09:40:10 +01002596 if (!parent) {
2597 parent = lysc_data_parent(sibling);
2598 }
2599
Michal Vaskof03ed032020-03-04 13:31:44 +01002600 /* find schema parent */
Michal Vasko62ed12d2020-05-21 10:08:25 +02002601 par2 = lysc_data_parent(schema);
Michal Vaskof03ed032020-03-04 13:31:44 +01002602
2603 if (parent) {
2604 /* inner node */
2605 if (par2 != parent) {
Michal Vaskob104f112020-07-17 09:54:54 +02002606 LOGERR(schema->module->ctx, LY_EINVAL, "Cannot insert, parent of \"%s\" is not \"%s\".", schema->name,
Michal Vasko69730152020-10-09 16:30:07 +02002607 parent->name);
Michal Vaskof03ed032020-03-04 13:31:44 +01002608 return LY_EINVAL;
2609 }
2610 } else {
2611 /* top-level node */
2612 if (par2) {
Radek Krejcif6d14cb2020-07-02 16:11:45 +02002613 LOGERR(schema->module->ctx, LY_EINVAL, "Cannot insert, node \"%s\" is not top-level.", schema->name);
Michal Vaskof03ed032020-03-04 13:31:44 +01002614 return LY_EINVAL;
2615 }
2616 }
2617
2618 return LY_SUCCESS;
2619}
2620
2621API LY_ERR
Michal Vaskob104f112020-07-17 09:54:54 +02002622lyd_insert_child(struct lyd_node *parent, struct lyd_node *node)
Michal Vaskof03ed032020-03-04 13:31:44 +01002623{
2624 struct lyd_node *iter;
2625
Michal Vasko0ab974d2021-02-24 13:18:26 +01002626 LY_CHECK_ARG_RET(NULL, parent, node, !parent->schema || (parent->schema->nodetype & LYD_NODE_INNER), LY_EINVAL);
Michal Vaskof03ed032020-03-04 13:31:44 +01002627
Michal Vasko717a4c32020-12-07 09:40:10 +01002628 LY_CHECK_RET(lyd_insert_check_schema(parent->schema, NULL, node->schema));
Michal Vaskof03ed032020-03-04 13:31:44 +01002629
Michal Vasko0ab974d2021-02-24 13:18:26 +01002630 if (node->schema && (node->schema->flags & LYS_KEY)) {
Michal Vaskof03ed032020-03-04 13:31:44 +01002631 LOGERR(parent->schema->module->ctx, LY_EINVAL, "Cannot insert key \"%s\".", node->schema->name);
2632 return LY_EINVAL;
2633 }
2634
2635 if (node->parent || node->prev->next) {
2636 lyd_unlink_tree(node);
2637 }
2638
2639 while (node) {
2640 iter = node->next;
2641 lyd_unlink_tree(node);
2642 lyd_insert_node(parent, NULL, node);
2643 node = iter;
2644 }
2645 return LY_SUCCESS;
2646}
2647
2648API LY_ERR
Michal Vaskob104f112020-07-17 09:54:54 +02002649lyd_insert_sibling(struct lyd_node *sibling, struct lyd_node *node, struct lyd_node **first)
Michal Vaskob1b5c262020-03-05 14:29:47 +01002650{
2651 struct lyd_node *iter;
2652
Michal Vaskob104f112020-07-17 09:54:54 +02002653 LY_CHECK_ARG_RET(NULL, node, LY_EINVAL);
Michal Vaskob1b5c262020-03-05 14:29:47 +01002654
Michal Vaskob104f112020-07-17 09:54:54 +02002655 if (sibling) {
Michal Vasko717a4c32020-12-07 09:40:10 +01002656 LY_CHECK_RET(lyd_insert_check_schema(NULL, sibling->schema, node->schema));
Michal Vaskob1b5c262020-03-05 14:29:47 +01002657 }
2658
Michal Vasko553d0b52020-12-04 16:27:52 +01002659 if (sibling == node) {
2660 /* we need to keep the connection to siblings so we can insert into them */
2661 sibling = sibling->prev;
2662 }
2663
Michal Vaskob1b5c262020-03-05 14:29:47 +01002664 if (node->parent || node->prev->next) {
2665 lyd_unlink_tree(node);
2666 }
2667
2668 while (node) {
Michal Vasko71e795e2020-12-04 16:27:37 +01002669 if (lysc_is_key(node->schema)) {
Michal Vaskob7be7a82020-08-20 09:09:04 +02002670 LOGERR(LYD_CTX(node), LY_EINVAL, "Cannot insert key \"%s\".", node->schema->name);
Michal Vaskob104f112020-07-17 09:54:54 +02002671 return LY_EINVAL;
2672 }
2673
Michal Vaskob1b5c262020-03-05 14:29:47 +01002674 iter = node->next;
2675 lyd_unlink_tree(node);
2676 lyd_insert_node(NULL, &sibling, node);
2677 node = iter;
2678 }
Michal Vaskob1b5c262020-03-05 14:29:47 +01002679
Michal Vaskob104f112020-07-17 09:54:54 +02002680 if (first) {
2681 /* find the first sibling */
2682 *first = sibling;
2683 while ((*first)->prev->next) {
2684 *first = (*first)->prev;
Michal Vasko0249f7c2020-03-05 16:36:40 +01002685 }
2686 }
2687
2688 return LY_SUCCESS;
2689}
2690
Michal Vaskob1b5c262020-03-05 14:29:47 +01002691API LY_ERR
Michal Vaskof03ed032020-03-04 13:31:44 +01002692lyd_insert_before(struct lyd_node *sibling, struct lyd_node *node)
2693{
Michal Vaskof03ed032020-03-04 13:31:44 +01002694 LY_CHECK_ARG_RET(NULL, sibling, node, LY_EINVAL);
2695
Michal Vasko717a4c32020-12-07 09:40:10 +01002696 LY_CHECK_RET(lyd_insert_check_schema(NULL, sibling->schema, node->schema));
Michal Vaskof03ed032020-03-04 13:31:44 +01002697
Michal Vaskob104f112020-07-17 09:54:54 +02002698 if (!(node->schema->nodetype & (LYS_LIST | LYS_LEAFLIST)) || !(node->schema->flags & LYS_ORDBY_USER)) {
Michal Vaskob7be7a82020-08-20 09:09:04 +02002699 LOGERR(LYD_CTX(sibling), LY_EINVAL, "Can be used only for user-ordered nodes.");
Michal Vaskof03ed032020-03-04 13:31:44 +01002700 return LY_EINVAL;
2701 }
2702
Michal Vasko4bc2ce32020-12-08 10:06:16 +01002703 lyd_unlink_tree(node);
2704 lyd_insert_before_node(sibling, node);
2705 lyd_insert_hash(node);
Michal Vaskof03ed032020-03-04 13:31:44 +01002706
Michal Vaskof03ed032020-03-04 13:31:44 +01002707 return LY_SUCCESS;
2708}
2709
2710API LY_ERR
2711lyd_insert_after(struct lyd_node *sibling, struct lyd_node *node)
2712{
Michal Vaskof03ed032020-03-04 13:31:44 +01002713 LY_CHECK_ARG_RET(NULL, sibling, node, LY_EINVAL);
2714
Michal Vasko717a4c32020-12-07 09:40:10 +01002715 LY_CHECK_RET(lyd_insert_check_schema(NULL, sibling->schema, node->schema));
Michal Vaskof03ed032020-03-04 13:31:44 +01002716
Michal Vaskob104f112020-07-17 09:54:54 +02002717 if (!(node->schema->nodetype & (LYS_LIST | LYS_LEAFLIST)) || !(node->schema->flags & LYS_ORDBY_USER)) {
Michal Vaskob7be7a82020-08-20 09:09:04 +02002718 LOGERR(LYD_CTX(sibling), LY_EINVAL, "Can be used only for user-ordered nodes.");
Michal Vaskof03ed032020-03-04 13:31:44 +01002719 return LY_EINVAL;
2720 }
2721
Michal Vasko4bc2ce32020-12-08 10:06:16 +01002722 lyd_unlink_tree(node);
2723 lyd_insert_after_node(sibling, node);
2724 lyd_insert_hash(node);
Michal Vaskof03ed032020-03-04 13:31:44 +01002725
Michal Vaskof03ed032020-03-04 13:31:44 +01002726 return LY_SUCCESS;
2727}
2728
2729API void
2730lyd_unlink_tree(struct lyd_node *node)
2731{
2732 struct lyd_node *iter;
2733
2734 if (!node) {
2735 return;
2736 }
2737
Michal Vaskob104f112020-07-17 09:54:54 +02002738 /* update hashes while still linked into the tree */
2739 lyd_unlink_hash(node);
2740
Michal Vaskof03ed032020-03-04 13:31:44 +01002741 /* unlink from siblings */
2742 if (node->prev->next) {
2743 node->prev->next = node->next;
2744 }
2745 if (node->next) {
2746 node->next->prev = node->prev;
2747 } else {
2748 /* unlinking the last node */
2749 if (node->parent) {
2750 iter = node->parent->child;
2751 } else {
2752 iter = node->prev;
2753 while (iter->prev != node) {
2754 iter = iter->prev;
2755 }
2756 }
2757 /* update the "last" pointer from the first node */
2758 iter->prev = node->prev;
2759 }
2760
2761 /* unlink from parent */
2762 if (node->parent) {
2763 if (node->parent->child == node) {
2764 /* the node is the first child */
2765 node->parent->child = node->next;
2766 }
2767
Michal Vaskoab49dbe2020-07-17 12:32:47 +02002768 /* check for NP container whether its last non-default node is not being unlinked */
Michal Vasko69730152020-10-09 16:30:07 +02002769 if (node->parent->schema && (node->parent->schema->nodetype == LYS_CONTAINER) &&
2770 !(node->parent->flags & LYD_DEFAULT) && !(node->parent->schema->flags & LYS_PRESENCE)) {
Michal Vaskoab49dbe2020-07-17 12:32:47 +02002771 LY_LIST_FOR(node->parent->child, iter) {
2772 if ((iter != node) && !(iter->flags & LYD_DEFAULT)) {
2773 break;
2774 }
2775 }
2776 if (!iter) {
2777 node->parent->flags |= LYD_DEFAULT;
2778 }
2779 }
2780
Michal Vaskof03ed032020-03-04 13:31:44 +01002781 node->parent = NULL;
2782 }
2783
2784 node->next = NULL;
2785 node->prev = node;
2786}
2787
Michal Vaskoa5da3292020-08-12 13:10:50 +02002788void
Michal Vasko871a0252020-11-11 18:35:24 +01002789lyd_insert_meta(struct lyd_node *parent, struct lyd_meta *meta, ly_bool clear_dflt)
Radek Krejci1798aae2020-07-14 13:26:06 +02002790{
2791 struct lyd_meta *last, *iter;
2792
2793 assert(parent);
Michal Vaskoa5da3292020-08-12 13:10:50 +02002794
2795 if (!meta) {
2796 return;
2797 }
Radek Krejci1798aae2020-07-14 13:26:06 +02002798
2799 for (iter = meta; iter; iter = iter->next) {
2800 iter->parent = parent;
2801 }
2802
2803 /* insert as the last attribute */
2804 if (parent->meta) {
Radek Krejci1e008d22020-08-17 11:37:37 +02002805 for (last = parent->meta; last->next; last = last->next) {}
Radek Krejci1798aae2020-07-14 13:26:06 +02002806 last->next = meta;
2807 } else {
2808 parent->meta = meta;
2809 }
2810
2811 /* remove default flags from NP containers */
Michal Vasko871a0252020-11-11 18:35:24 +01002812 while (clear_dflt && parent && (parent->schema->nodetype == LYS_CONTAINER) && (parent->flags & LYD_DEFAULT)) {
Radek Krejci1798aae2020-07-14 13:26:06 +02002813 parent->flags &= ~LYD_DEFAULT;
Michal Vasko9e685082021-01-29 14:49:09 +01002814 parent = lyd_parent(parent);
Radek Krejci1798aae2020-07-14 13:26:06 +02002815 }
Radek Krejci1798aae2020-07-14 13:26:06 +02002816}
2817
2818LY_ERR
Michal Vasko9f96a052020-03-10 09:41:45 +01002819lyd_create_meta(struct lyd_node *parent, struct lyd_meta **meta, const struct lys_module *mod, const char *name,
Radek Krejci8df109d2021-04-23 12:19:08 +02002820 size_t name_len, const char *value, size_t value_len, ly_bool *dynamic, LY_VALUE_FORMAT format,
Michal Vasko871a0252020-11-11 18:35:24 +01002821 void *prefix_data, uint32_t hints, ly_bool clear_dflt, ly_bool *incomplete)
Michal Vasko90932a92020-02-12 14:33:03 +01002822{
Radek Krejci2efc45b2020-12-22 16:25:44 +01002823 LY_ERR ret = LY_SUCCESS;
Michal Vasko90932a92020-02-12 14:33:03 +01002824 struct lysc_ext_instance *ant = NULL;
Michal Vaskob0534f92021-07-01 13:24:03 +02002825 const struct lysc_type **ant_type;
Michal Vasko9f96a052020-03-10 09:41:45 +01002826 struct lyd_meta *mt, *last;
Michal Vaskofd69e1d2020-07-03 11:57:17 +02002827 LY_ARRAY_COUNT_TYPE u;
Michal Vasko90932a92020-02-12 14:33:03 +01002828
Michal Vasko9f96a052020-03-10 09:41:45 +01002829 assert((parent || meta) && mod);
Michal Vasko6f4cbb62020-02-28 11:15:47 +01002830
Radek Krejciddace2c2021-01-08 11:30:56 +01002831 LOG_LOCSET(parent ? parent->schema : NULL, parent, NULL, NULL);
Radek Krejci2efc45b2020-12-22 16:25:44 +01002832
Radek Krejci7eb54ba2020-05-18 16:30:04 +02002833 LY_ARRAY_FOR(mod->compiled->exts, u) {
Radek Krejci3e6632f2021-03-22 22:08:21 +01002834 if ((mod->compiled->exts[u].def->plugin == lyplg_find(LYPLG_EXTENSION, LYEXT_PLUGIN_INTERNAL_ANNOTATION)) &&
Radek Krejci7eb54ba2020-05-18 16:30:04 +02002835 !ly_strncmp(mod->compiled->exts[u].argument, name, name_len)) {
Michal Vasko90932a92020-02-12 14:33:03 +01002836 /* we have the annotation definition */
Radek Krejci7eb54ba2020-05-18 16:30:04 +02002837 ant = &mod->compiled->exts[u];
Michal Vasko90932a92020-02-12 14:33:03 +01002838 break;
2839 }
2840 }
2841 if (!ant) {
2842 /* attribute is not defined as a metadata annotation (RFC 7952) */
Radek Krejci2efc45b2020-12-22 16:25:44 +01002843 LOGVAL(mod->ctx, LYVE_REFERENCE, "Annotation definition for attribute \"%s:%.*s\" not found.",
Radek Krejci422afb12021-03-04 16:38:16 +01002844 mod->name, (int)name_len, name);
Radek Krejci2efc45b2020-12-22 16:25:44 +01002845 ret = LY_EINVAL;
2846 goto cleanup;
Michal Vasko90932a92020-02-12 14:33:03 +01002847 }
2848
Michal Vasko9f96a052020-03-10 09:41:45 +01002849 mt = calloc(1, sizeof *mt);
Radek Krejci2efc45b2020-12-22 16:25:44 +01002850 LY_CHECK_ERR_GOTO(!mt, LOGMEM(mod->ctx); ret = LY_EMEM, cleanup);
Michal Vasko9f96a052020-03-10 09:41:45 +01002851 mt->parent = parent;
2852 mt->annotation = ant;
Michal Vaskob0534f92021-07-01 13:24:03 +02002853 ant_type = ant->substmts[ANNOTATION_SUBSTMT_TYPE].storage;
2854 ret = lyd_value_store(mod->ctx, &mt->value, *ant_type, value, value_len, dynamic, format, prefix_data, hints,
2855 parent ? parent->schema : NULL, incomplete);
Radek Krejci2efc45b2020-12-22 16:25:44 +01002856 LY_CHECK_ERR_GOTO(ret, free(mt), cleanup);
2857 ret = lydict_insert(mod->ctx, name, name_len, &mt->name);
2858 LY_CHECK_ERR_GOTO(ret, free(mt), cleanup);
Michal Vasko90932a92020-02-12 14:33:03 +01002859
Michal Vasko6f4cbb62020-02-28 11:15:47 +01002860 /* insert as the last attribute */
2861 if (parent) {
Michal Vasko871a0252020-11-11 18:35:24 +01002862 lyd_insert_meta(parent, mt, clear_dflt);
Michal Vasko9f96a052020-03-10 09:41:45 +01002863 } else if (*meta) {
Radek Krejci1e008d22020-08-17 11:37:37 +02002864 for (last = *meta; last->next; last = last->next) {}
Michal Vasko9f96a052020-03-10 09:41:45 +01002865 last->next = mt;
Michal Vasko90932a92020-02-12 14:33:03 +01002866 }
2867
Michal Vasko9f96a052020-03-10 09:41:45 +01002868 if (meta) {
2869 *meta = mt;
Michal Vasko90932a92020-02-12 14:33:03 +01002870 }
Radek Krejci2efc45b2020-12-22 16:25:44 +01002871
2872cleanup:
Radek Krejciddace2c2021-01-08 11:30:56 +01002873 LOG_LOCBACK((parent && parent->schema) ? 1 : 0, parent ? 1 : 0, 0, 0);
Radek Krejci2efc45b2020-12-22 16:25:44 +01002874 return ret;
Michal Vasko90932a92020-02-12 14:33:03 +01002875}
2876
Michal Vaskoa5da3292020-08-12 13:10:50 +02002877void
2878lyd_insert_attr(struct lyd_node *parent, struct lyd_attr *attr)
2879{
2880 struct lyd_attr *last, *iter;
2881 struct lyd_node_opaq *opaq;
2882
2883 assert(parent && !parent->schema);
2884
2885 if (!attr) {
2886 return;
2887 }
2888
2889 opaq = (struct lyd_node_opaq *)parent;
2890 for (iter = attr; iter; iter = iter->next) {
2891 iter->parent = opaq;
2892 }
2893
2894 /* insert as the last attribute */
2895 if (opaq->attr) {
Radek Krejci1e008d22020-08-17 11:37:37 +02002896 for (last = opaq->attr; last->next; last = last->next) {}
Michal Vaskoa5da3292020-08-12 13:10:50 +02002897 last->next = attr;
2898 } else {
2899 opaq->attr = attr;
2900 }
2901}
2902
Michal Vasko52927e22020-03-16 17:26:14 +01002903LY_ERR
Michal Vaskofeca4fb2020-10-05 08:58:40 +02002904lyd_create_attr(struct lyd_node *parent, struct lyd_attr **attr, const struct ly_ctx *ctx, const char *name, size_t name_len,
Michal Vasko501af032020-11-11 20:27:44 +01002905 const char *prefix, size_t prefix_len, const char *module_key, size_t module_key_len, const char *value,
Radek Krejci8df109d2021-04-23 12:19:08 +02002906 size_t value_len, ly_bool *dynamic, LY_VALUE_FORMAT format, void *val_prefix_data, uint32_t hints)
Michal Vasko52927e22020-03-16 17:26:14 +01002907{
Radek Krejci011e4aa2020-09-04 15:22:31 +02002908 LY_ERR ret = LY_SUCCESS;
Radek Krejci1798aae2020-07-14 13:26:06 +02002909 struct lyd_attr *at, *last;
Michal Vasko52927e22020-03-16 17:26:14 +01002910
2911 assert(ctx && (parent || attr) && (!parent || !parent->schema));
Michal Vaskofeca4fb2020-10-05 08:58:40 +02002912 assert(name && name_len && format);
Michal Vasko52927e22020-03-16 17:26:14 +01002913
Michal Vasko2a3722d2021-06-16 11:52:39 +02002914 if (!value_len && (!dynamic || !*dynamic)) {
Michal Vasko52927e22020-03-16 17:26:14 +01002915 value = "";
2916 }
2917
2918 at = calloc(1, sizeof *at);
Michal Vasko6b5cb2a2020-11-11 19:11:21 +01002919 LY_CHECK_ERR_RET(!at, LOGMEM(ctx); ly_free_prefix_data(format, val_prefix_data), LY_EMEM);
Radek Krejcid46e46a2020-09-15 14:22:42 +02002920
Michal Vaskoad92b672020-11-12 13:11:31 +01002921 LY_CHECK_GOTO(ret = lydict_insert(ctx, name, name_len, &at->name.name), finish);
Michal Vasko501af032020-11-11 20:27:44 +01002922 if (prefix_len) {
Michal Vaskoad92b672020-11-12 13:11:31 +01002923 LY_CHECK_GOTO(ret = lydict_insert(ctx, prefix, prefix_len, &at->name.prefix), finish);
Michal Vasko501af032020-11-11 20:27:44 +01002924 }
2925 if (module_key_len) {
Michal Vaskoad92b672020-11-12 13:11:31 +01002926 LY_CHECK_GOTO(ret = lydict_insert(ctx, module_key, module_key_len, &at->name.module_ns), finish);
Michal Vasko501af032020-11-11 20:27:44 +01002927 }
2928
Michal Vasko52927e22020-03-16 17:26:14 +01002929 if (dynamic && *dynamic) {
Radek Krejci011e4aa2020-09-04 15:22:31 +02002930 ret = lydict_insert_zc(ctx, (char *)value, &at->value);
2931 LY_CHECK_GOTO(ret, finish);
Michal Vasko52927e22020-03-16 17:26:14 +01002932 *dynamic = 0;
2933 } else {
Radek Krejci011e4aa2020-09-04 15:22:31 +02002934 LY_CHECK_GOTO(ret = lydict_insert(ctx, value, value_len, &at->value), finish);
Michal Vasko52927e22020-03-16 17:26:14 +01002935 }
Michal Vasko501af032020-11-11 20:27:44 +01002936 at->format = format;
2937 at->val_prefix_data = val_prefix_data;
2938 at->hints = hints;
Michal Vasko52927e22020-03-16 17:26:14 +01002939
2940 /* insert as the last attribute */
2941 if (parent) {
Michal Vaskoa5da3292020-08-12 13:10:50 +02002942 lyd_insert_attr(parent, at);
Michal Vasko52927e22020-03-16 17:26:14 +01002943 } else if (*attr) {
Radek Krejci1e008d22020-08-17 11:37:37 +02002944 for (last = *attr; last->next; last = last->next) {}
Michal Vasko52927e22020-03-16 17:26:14 +01002945 last->next = at;
2946 }
2947
Radek Krejci011e4aa2020-09-04 15:22:31 +02002948finish:
2949 if (ret) {
2950 lyd_free_attr_single(ctx, at);
2951 } else if (attr) {
Michal Vasko52927e22020-03-16 17:26:14 +01002952 *attr = at;
2953 }
2954 return LY_SUCCESS;
2955}
2956
Radek Krejci084289f2019-07-09 17:35:30 +02002957API const struct lyd_node_term *
Michal Vasko004d3152020-06-11 19:59:22 +02002958lyd_target(const struct ly_path *path, const struct lyd_node *tree)
Radek Krejci084289f2019-07-09 17:35:30 +02002959{
Michal Vasko004d3152020-06-11 19:59:22 +02002960 struct lyd_node *target;
Radek Krejci084289f2019-07-09 17:35:30 +02002961
Michal Vasko004d3152020-06-11 19:59:22 +02002962 if (ly_path_eval(path, tree, &target)) {
2963 return NULL;
Radek Krejci084289f2019-07-09 17:35:30 +02002964 }
2965
Michal Vasko004d3152020-06-11 19:59:22 +02002966 return (struct lyd_node_term *)target;
Radek Krejci084289f2019-07-09 17:35:30 +02002967}
2968
aPiecek2f63f952021-03-30 12:22:18 +02002969/**
2970 * @brief Check the equality of the two schemas from different contexts.
2971 *
2972 * @param schema1 of first node.
2973 * @param schema2 of second node.
2974 * @return 1 if the schemas are equal otherwise 0.
2975 */
2976static ly_bool
2977lyd_compare_schema_equal(const struct lysc_node *schema1, const struct lysc_node *schema2)
2978{
2979 if (!schema1 && !schema2) {
2980 return 1;
2981 } else if (!schema1 || !schema2) {
2982 return 0;
2983 }
2984
2985 assert(schema1->module->ctx != schema2->module->ctx);
2986
2987 if (schema1->nodetype != schema2->nodetype) {
2988 return 0;
2989 }
2990
2991 if (strcmp(schema1->name, schema2->name)) {
2992 return 0;
2993 }
2994
2995 if (strcmp(schema1->module->name, schema2->module->name)) {
2996 return 0;
2997 }
2998
2999 if (schema1->module->revision || schema2->module->revision) {
3000 if (!schema1->module->revision || !schema2->module->revision) {
3001 return 0;
3002 }
3003 if (strcmp(schema1->module->revision, schema2->module->revision)) {
3004 return 0;
3005 }
3006 }
3007
3008 return 1;
3009}
3010
3011/**
3012 * @brief Check the equality of the schemas for all parent nodes.
3013 *
3014 * Both nodes must be from different contexts.
3015 *
3016 * @param node1 Data of first node.
3017 * @param node2 Data of second node.
3018 * @return 1 if the all related parental schemas are equal otherwise 0.
3019 */
3020static ly_bool
3021lyd_compare_schema_parents_equal(const struct lyd_node *node1, const struct lyd_node *node2)
3022{
3023 const struct lysc_node *parent1, *parent2;
3024
3025 assert(node1 && node2);
3026
3027 for (parent1 = node1->schema->parent, parent2 = node2->schema->parent;
3028 parent1 && parent2;
3029 parent1 = parent1->parent, parent2 = parent2->parent) {
3030 if (!lyd_compare_schema_equal(parent1, parent2)) {
3031 return 0;
3032 }
3033 }
3034
3035 if (parent1 || parent2) {
3036 return 0;
3037 }
3038
3039 return 1;
3040}
3041
3042/**
3043 * @brief Internal implementation of @ref lyd_compare_single.
3044 * @copydoc lyd_compare_single
3045 * @param[in] parental_schemas_checked Flag used for optimization.
3046 * When this function is called for the first time, the flag must be set to 0.
3047 * The @ref lyd_compare_schema_parents_equal should be called only once during
3048 * recursive calls, and this is accomplished by setting to 1 in the lyd_compare_single_ body.
3049 */
3050static LY_ERR
3051lyd_compare_single_(const struct lyd_node *node1, const struct lyd_node *node2,
3052 uint32_t options, ly_bool parental_schemas_checked)
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003053{
3054 const struct lyd_node *iter1, *iter2;
3055 struct lyd_node_term *term1, *term2;
3056 struct lyd_node_any *any1, *any2;
Michal Vasko52927e22020-03-16 17:26:14 +01003057 struct lyd_node_opaq *opaq1, *opaq2;
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003058 size_t len1, len2;
Radek Krejci084289f2019-07-09 17:35:30 +02003059
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003060 if (!node1 || !node2) {
3061 if (node1 == node2) {
3062 return LY_SUCCESS;
3063 } else {
3064 return LY_ENOT;
3065 }
3066 }
3067
aPiecek2f63f952021-03-30 12:22:18 +02003068 if (LYD_CTX(node1) == LYD_CTX(node2)) {
3069 /* same contexts */
3070 if (node1->schema != node2->schema) {
3071 return LY_ENOT;
3072 }
3073 } else {
3074 /* different contexts */
3075 if (!lyd_compare_schema_equal(node1->schema, node2->schema)) {
3076 return LY_ENOT;
3077 }
3078 if (!parental_schemas_checked) {
3079 if (!lyd_compare_schema_parents_equal(node1, node2)) {
3080 return LY_ENOT;
3081 }
3082 parental_schemas_checked = 1;
3083 }
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003084 }
3085
3086 if (node1->hash != node2->hash) {
3087 return LY_ENOT;
3088 }
aPiecek2f63f952021-03-30 12:22:18 +02003089 /* equal hashes do not mean equal nodes, they can be just in collision so the nodes must be checked explicitly */
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003090
Michal Vasko52927e22020-03-16 17:26:14 +01003091 if (!node1->schema) {
3092 opaq1 = (struct lyd_node_opaq *)node1;
3093 opaq2 = (struct lyd_node_opaq *)node2;
aPiecek2f63f952021-03-30 12:22:18 +02003094 if ((strcmp(opaq1->name.name, opaq2->name.name)) || (opaq1->format != opaq2->format) ||
3095 (strcmp(opaq1->name.module_ns, opaq2->name.module_ns))) {
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003096 return LY_ENOT;
3097 }
Michal Vasko52927e22020-03-16 17:26:14 +01003098 switch (opaq1->format) {
Radek Krejci8df109d2021-04-23 12:19:08 +02003099 case LY_VALUE_XML:
Radek Krejci09c77442021-04-26 11:10:34 +02003100 if (lyxml_value_compare(LYD_CTX(node1), opaq1->value, opaq1->val_prefix_data, LYD_CTX(node2), opaq2->value,
3101 opaq2->val_prefix_data)) {
Michal Vasko52927e22020-03-16 17:26:14 +01003102 return LY_ENOT;
3103 }
3104 break;
Radek Krejci8df109d2021-04-23 12:19:08 +02003105 case LY_VALUE_JSON:
Radek Krejci1798aae2020-07-14 13:26:06 +02003106 /* prefixes in JSON are unique, so it is not necessary to canonize the values */
3107 if (strcmp(opaq1->value, opaq2->value)) {
3108 return LY_ENOT;
3109 }
3110 break;
Michal Vasko6b5cb2a2020-11-11 19:11:21 +01003111 default:
Michal Vasko52927e22020-03-16 17:26:14 +01003112 /* not allowed */
Michal Vaskob7be7a82020-08-20 09:09:04 +02003113 LOGINT(LYD_CTX(node1));
Michal Vasko52927e22020-03-16 17:26:14 +01003114 return LY_EINT;
3115 }
3116 if (options & LYD_COMPARE_FULL_RECURSION) {
3117 iter1 = opaq1->child;
3118 iter2 = opaq2->child;
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003119 goto all_children_compare;
Michal Vasko52927e22020-03-16 17:26:14 +01003120 }
3121 return LY_SUCCESS;
3122 } else {
3123 switch (node1->schema->nodetype) {
3124 case LYS_LEAF:
3125 case LYS_LEAFLIST:
3126 if (options & LYD_COMPARE_DEFAULTS) {
3127 if ((node1->flags & LYD_DEFAULT) != (node2->flags & LYD_DEFAULT)) {
3128 return LY_ENOT;
3129 }
3130 }
3131
Michal Vasko1a2bf2e2020-06-16 13:07:48 +02003132 term1 = (struct lyd_node_term *)node1;
3133 term2 = (struct lyd_node_term *)node2;
aPiecek2f63f952021-03-30 12:22:18 +02003134
3135 /* same contexts */
3136 if (LYD_CTX(node1) == LYD_CTX(node2)) {
3137 return term1->value.realtype->plugin->compare(&term1->value, &term2->value);
3138 }
3139
3140 /* different contexts */
Radek Krejci6d5ba0c2021-04-26 07:49:59 +02003141 if (strcmp(lyd_get_value(node1), lyd_get_value(node2))) {
aPiecek2f63f952021-03-30 12:22:18 +02003142 return LY_ENOT;
3143 }
3144 return LY_SUCCESS;
Michal Vasko52927e22020-03-16 17:26:14 +01003145 case LYS_CONTAINER:
3146 if (options & LYD_COMPARE_DEFAULTS) {
3147 if ((node1->flags & LYD_DEFAULT) != (node2->flags & LYD_DEFAULT)) {
3148 return LY_ENOT;
3149 }
3150 }
3151 if (options & LYD_COMPARE_FULL_RECURSION) {
Michal Vasko9e685082021-01-29 14:49:09 +01003152 iter1 = lyd_child(node1);
3153 iter2 = lyd_child(node2);
Michal Vasko52927e22020-03-16 17:26:14 +01003154 goto all_children_compare;
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003155 }
3156 return LY_SUCCESS;
Michal Vasko1bf09392020-03-27 12:38:10 +01003157 case LYS_RPC:
Michal Vasko52927e22020-03-16 17:26:14 +01003158 case LYS_ACTION:
3159 if (options & LYD_COMPARE_FULL_RECURSION) {
3160 /* TODO action/RPC
3161 goto all_children_compare;
3162 */
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003163 }
3164 return LY_SUCCESS;
Michal Vasko52927e22020-03-16 17:26:14 +01003165 case LYS_NOTIF:
3166 if (options & LYD_COMPARE_FULL_RECURSION) {
3167 /* TODO Notification
3168 goto all_children_compare;
3169 */
3170 }
3171 return LY_SUCCESS;
3172 case LYS_LIST:
Michal Vasko9e685082021-01-29 14:49:09 +01003173 iter1 = lyd_child(node1);
3174 iter2 = lyd_child(node2);
Michal Vasko52927e22020-03-16 17:26:14 +01003175
3176 if (!(node1->schema->flags & LYS_KEYLESS) && !(options & LYD_COMPARE_FULL_RECURSION)) {
3177 /* lists with keys, their equivalence is based on their keys */
Michal Vasko544e58a2021-01-28 14:33:41 +01003178 for (const struct lysc_node *key = lysc_node_child(node1->schema);
Michal Vaskoc57d9a92020-06-23 13:28:27 +02003179 key && (key->flags & LYS_KEY);
Michal Vasko52927e22020-03-16 17:26:14 +01003180 key = key->next) {
aPiecek2f63f952021-03-30 12:22:18 +02003181 if (lyd_compare_single_(iter1, iter2, options, parental_schemas_checked)) {
Michal Vasko52927e22020-03-16 17:26:14 +01003182 return LY_ENOT;
3183 }
3184 iter1 = iter1->next;
3185 iter2 = iter2->next;
3186 }
3187 } else {
3188 /* lists without keys, their equivalence is based on equivalence of all the children (both direct and indirect) */
3189
Radek Krejci0f969882020-08-21 16:56:47 +02003190all_children_compare:
Michal Vasko52927e22020-03-16 17:26:14 +01003191 if (!iter1 && !iter2) {
3192 /* no children, nothing to compare */
3193 return LY_SUCCESS;
3194 }
3195
Michal Vaskod989ba02020-08-24 10:59:24 +02003196 for ( ; iter1 && iter2; iter1 = iter1->next, iter2 = iter2->next) {
aPiecek2f63f952021-03-30 12:22:18 +02003197 if (lyd_compare_single_(iter1, iter2, options | LYD_COMPARE_FULL_RECURSION, parental_schemas_checked)) {
Michal Vasko52927e22020-03-16 17:26:14 +01003198 return LY_ENOT;
3199 }
3200 }
3201 if (iter1 || iter2) {
3202 return LY_ENOT;
3203 }
3204 }
3205 return LY_SUCCESS;
3206 case LYS_ANYXML:
3207 case LYS_ANYDATA:
Michal Vasko22df3f02020-08-24 13:29:22 +02003208 any1 = (struct lyd_node_any *)node1;
3209 any2 = (struct lyd_node_any *)node2;
Michal Vasko52927e22020-03-16 17:26:14 +01003210
3211 if (any1->value_type != any2->value_type) {
3212 return LY_ENOT;
3213 }
3214 switch (any1->value_type) {
3215 case LYD_ANYDATA_DATATREE:
3216 iter1 = any1->value.tree;
3217 iter2 = any2->value.tree;
3218 goto all_children_compare;
3219 case LYD_ANYDATA_STRING:
3220 case LYD_ANYDATA_XML:
3221 case LYD_ANYDATA_JSON:
3222 len1 = strlen(any1->value.str);
3223 len2 = strlen(any2->value.str);
Michal Vasko69730152020-10-09 16:30:07 +02003224 if ((len1 != len2) || strcmp(any1->value.str, any2->value.str)) {
Michal Vasko52927e22020-03-16 17:26:14 +01003225 return LY_ENOT;
3226 }
3227 return LY_SUCCESS;
Michal Vasko52927e22020-03-16 17:26:14 +01003228 case LYD_ANYDATA_LYB:
Michal Vasko60ea6352020-06-29 13:39:39 +02003229 len1 = lyd_lyb_data_length(any1->value.mem);
3230 len2 = lyd_lyb_data_length(any2->value.mem);
Michal Vasko69730152020-10-09 16:30:07 +02003231 if ((len1 != len2) || memcmp(any1->value.mem, any2->value.mem, len1)) {
Michal Vasko52927e22020-03-16 17:26:14 +01003232 return LY_ENOT;
3233 }
3234 return LY_SUCCESS;
Michal Vasko52927e22020-03-16 17:26:14 +01003235 }
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003236 }
3237 }
3238
Michal Vaskob7be7a82020-08-20 09:09:04 +02003239 LOGINT(LYD_CTX(node1));
Radek Krejci1f05b6a2019-07-18 16:15:06 +02003240 return LY_EINT;
3241}
Radek Krejci22ebdba2019-07-25 13:59:43 +02003242
Michal Vasko21725742020-06-29 11:49:25 +02003243API LY_ERR
aPiecek2f63f952021-03-30 12:22:18 +02003244lyd_compare_single(const struct lyd_node *node1, const struct lyd_node *node2, uint32_t options)
3245{
3246 return lyd_compare_single_(node1, node2, options, 0);
3247}
3248
3249API LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +02003250lyd_compare_siblings(const struct lyd_node *node1, const struct lyd_node *node2, uint32_t options)
Michal Vasko8f359bf2020-07-28 10:41:15 +02003251{
Michal Vaskod989ba02020-08-24 10:59:24 +02003252 for ( ; node1 && node2; node1 = node1->next, node2 = node2->next) {
Michal Vasko8f359bf2020-07-28 10:41:15 +02003253 LY_CHECK_RET(lyd_compare_single(node1, node2, options));
3254 }
3255
Michal Vasko11a81432020-07-28 16:31:29 +02003256 if (node1 == node2) {
3257 return LY_SUCCESS;
Michal Vasko8f359bf2020-07-28 10:41:15 +02003258 }
Michal Vasko11a81432020-07-28 16:31:29 +02003259 return LY_ENOT;
Michal Vasko8f359bf2020-07-28 10:41:15 +02003260}
3261
3262API LY_ERR
Michal Vasko21725742020-06-29 11:49:25 +02003263lyd_compare_meta(const struct lyd_meta *meta1, const struct lyd_meta *meta2)
3264{
3265 if (!meta1 || !meta2) {
3266 if (meta1 == meta2) {
3267 return LY_SUCCESS;
3268 } else {
3269 return LY_ENOT;
3270 }
3271 }
3272
Michal Vaskoa8083062020-11-06 17:22:10 +01003273 if ((meta1->annotation->module->ctx != meta2->annotation->module->ctx) || (meta1->annotation != meta2->annotation)) {
Michal Vasko21725742020-06-29 11:49:25 +02003274 return LY_ENOT;
3275 }
3276
Michal Vasko21725742020-06-29 11:49:25 +02003277 return meta1->value.realtype->plugin->compare(&meta1->value, &meta2->value);
3278}
3279
Radek Krejci22ebdba2019-07-25 13:59:43 +02003280/**
Michal Vasko9cf62422021-07-01 13:29:32 +02003281 * @brief Create a copy of the attribute.
3282 *
3283 * @param[in] attr Attribute to copy.
3284 * @param[in] node Opaque where to append the new attribute.
3285 * @param[out] dup Optional created attribute copy.
3286 * @return LY_ERR value.
3287 */
3288static LY_ERR
3289lyd_dup_attr_single(const struct lyd_attr *attr, struct lyd_node *node, struct lyd_attr **dup)
3290{
3291 LY_ERR ret = LY_SUCCESS;
3292 struct lyd_attr *a, *last;
3293 struct lyd_node_opaq *opaq = (struct lyd_node_opaq *)node;
3294
3295 LY_CHECK_ARG_RET(NULL, attr, node, !node->schema, LY_EINVAL);
3296
3297 /* create a copy */
3298 a = calloc(1, sizeof *attr);
3299 LY_CHECK_ERR_RET(!a, LOGMEM(LYD_CTX(node)), LY_EMEM);
3300
3301 LY_CHECK_GOTO(ret = lydict_insert(LYD_CTX(node), attr->name.name, 0, &a->name.name), finish);
3302 LY_CHECK_GOTO(ret = lydict_insert(LYD_CTX(node), attr->name.prefix, 0, &a->name.prefix), finish);
3303 LY_CHECK_GOTO(ret = lydict_insert(LYD_CTX(node), attr->name.module_ns, 0, &a->name.module_ns), finish);
3304 LY_CHECK_GOTO(ret = lydict_insert(LYD_CTX(node), attr->value, 0, &a->value), finish);
3305 a->hints = attr->hints;
3306 a->format = attr->format;
3307 if (attr->val_prefix_data) {
3308 ret = ly_dup_prefix_data(LYD_CTX(node), attr->format, attr->val_prefix_data, &a->val_prefix_data);
3309 LY_CHECK_GOTO(ret, finish);
3310 }
3311
3312 /* insert as the last attribute */
3313 a->parent = opaq;
3314 if (opaq->attr) {
3315 for (last = opaq->attr; last->next; last = last->next) {}
3316 last->next = a;
3317 } else {
3318 opaq->attr = a;
3319 }
3320
3321finish:
3322 if (ret) {
3323 lyd_free_attr_single(LYD_CTX(node), a);
3324 } else if (dup) {
3325 *dup = a;
3326 }
3327 return LY_SUCCESS;
3328}
3329
3330/**
Michal Vasko52927e22020-03-16 17:26:14 +01003331 * @brief Duplicate a single node and connect it into @p parent (if present) or last of @p first siblings.
Radek Krejci22ebdba2019-07-25 13:59:43 +02003332 *
3333 * Ignores LYD_DUP_WITH_PARENTS and LYD_DUP_WITH_SIBLINGS which are supposed to be handled by lyd_dup().
Radek Krejcif8b95172020-05-15 14:51:06 +02003334 *
3335 * @param[in] node Original node to duplicate
3336 * @param[in] parent Parent to insert into, NULL for top-level sibling.
3337 * @param[in,out] first First sibling, NULL if no top-level sibling exist yet. Can be also NULL if @p parent is set.
3338 * @param[in] options Bitmask of options flags, see @ref dupoptions.
3339 * @param[out] dup_p Pointer where the created duplicated node is placed (besides connecting it int @p parent / @p first sibling).
3340 * @return LY_ERR value
Radek Krejci22ebdba2019-07-25 13:59:43 +02003341 */
Michal Vasko52927e22020-03-16 17:26:14 +01003342static LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +02003343lyd_dup_r(const struct lyd_node *node, struct lyd_node *parent, struct lyd_node **first, uint32_t options,
Radek Krejci0f969882020-08-21 16:56:47 +02003344 struct lyd_node **dup_p)
Radek Krejci22ebdba2019-07-25 13:59:43 +02003345{
Michal Vasko52927e22020-03-16 17:26:14 +01003346 LY_ERR ret;
Radek Krejci22ebdba2019-07-25 13:59:43 +02003347 struct lyd_node *dup = NULL;
Michal Vasko61551fa2020-07-09 15:45:45 +02003348 struct lyd_meta *meta;
Michal Vasko9cf62422021-07-01 13:29:32 +02003349 struct lyd_attr *attr;
Michal Vasko61551fa2020-07-09 15:45:45 +02003350 struct lyd_node_any *any;
Radek Krejci22ebdba2019-07-25 13:59:43 +02003351
Michal Vasko52927e22020-03-16 17:26:14 +01003352 LY_CHECK_ARG_RET(NULL, node, LY_EINVAL);
Radek Krejci22ebdba2019-07-25 13:59:43 +02003353
Michal Vasko52927e22020-03-16 17:26:14 +01003354 if (!node->schema) {
3355 dup = calloc(1, sizeof(struct lyd_node_opaq));
Michal Vasko9cf62422021-07-01 13:29:32 +02003356 ((struct lyd_node_opaq *)dup)->ctx = LYD_CTX(node);
Michal Vasko52927e22020-03-16 17:26:14 +01003357 } else {
3358 switch (node->schema->nodetype) {
Michal Vasko1bf09392020-03-27 12:38:10 +01003359 case LYS_RPC:
Michal Vasko52927e22020-03-16 17:26:14 +01003360 case LYS_ACTION:
3361 case LYS_NOTIF:
3362 case LYS_CONTAINER:
3363 case LYS_LIST:
3364 dup = calloc(1, sizeof(struct lyd_node_inner));
3365 break;
3366 case LYS_LEAF:
3367 case LYS_LEAFLIST:
3368 dup = calloc(1, sizeof(struct lyd_node_term));
3369 break;
3370 case LYS_ANYDATA:
3371 case LYS_ANYXML:
3372 dup = calloc(1, sizeof(struct lyd_node_any));
3373 break;
3374 default:
Michal Vaskob7be7a82020-08-20 09:09:04 +02003375 LOGINT(LYD_CTX(node));
Michal Vasko52927e22020-03-16 17:26:14 +01003376 ret = LY_EINT;
3377 goto error;
3378 }
Radek Krejci22ebdba2019-07-25 13:59:43 +02003379 }
Michal Vaskob7be7a82020-08-20 09:09:04 +02003380 LY_CHECK_ERR_GOTO(!dup, LOGMEM(LYD_CTX(node)); ret = LY_EMEM, error);
Radek Krejci22ebdba2019-07-25 13:59:43 +02003381
Michal Vaskof6df0a02020-06-16 13:08:34 +02003382 if (options & LYD_DUP_WITH_FLAGS) {
3383 dup->flags = node->flags;
3384 } else {
3385 dup->flags = (node->flags & LYD_DEFAULT) | LYD_NEW;
3386 }
Radek Krejci22ebdba2019-07-25 13:59:43 +02003387 dup->schema = node->schema;
Michal Vasko52927e22020-03-16 17:26:14 +01003388 dup->prev = dup;
Radek Krejci22ebdba2019-07-25 13:59:43 +02003389
Michal Vasko9cf62422021-07-01 13:29:32 +02003390 /* duplicate metadata/attributes */
Michal Vasko25a32822020-07-09 15:48:22 +02003391 if (!(options & LYD_DUP_NO_META)) {
Michal Vasko9cf62422021-07-01 13:29:32 +02003392 if (!node->schema) {
3393 LY_LIST_FOR(((struct lyd_node_opaq *)node)->attr, attr) {
3394 LY_CHECK_GOTO(ret = lyd_dup_attr_single(attr, dup, NULL), error);
3395 }
3396 } else {
3397 LY_LIST_FOR(node->meta, meta) {
3398 LY_CHECK_GOTO(ret = lyd_dup_meta_single(meta, dup, NULL), error);
3399 }
Michal Vasko25a32822020-07-09 15:48:22 +02003400 }
3401 }
Radek Krejci22ebdba2019-07-25 13:59:43 +02003402
3403 /* nodetype-specific work */
Michal Vasko52927e22020-03-16 17:26:14 +01003404 if (!dup->schema) {
3405 struct lyd_node_opaq *opaq = (struct lyd_node_opaq *)dup;
3406 struct lyd_node_opaq *orig = (struct lyd_node_opaq *)node;
3407 struct lyd_node *child;
Radek Krejci22ebdba2019-07-25 13:59:43 +02003408
3409 if (options & LYD_DUP_RECURSIVE) {
3410 /* duplicate all the children */
3411 LY_LIST_FOR(orig->child, child) {
Michal Vasko3a41dff2020-07-15 14:30:28 +02003412 LY_CHECK_GOTO(ret = lyd_dup_r(child, dup, NULL, options, NULL), error);
Michal Vasko52927e22020-03-16 17:26:14 +01003413 }
3414 }
Michal Vaskoad92b672020-11-12 13:11:31 +01003415 LY_CHECK_GOTO(ret = lydict_insert(LYD_CTX(node), orig->name.name, 0, &opaq->name.name), error);
Michal Vasko9cf62422021-07-01 13:29:32 +02003416 LY_CHECK_GOTO(ret = lydict_insert(LYD_CTX(node), orig->name.prefix, 0, &opaq->name.prefix), error);
Michal Vaskoad92b672020-11-12 13:11:31 +01003417 LY_CHECK_GOTO(ret = lydict_insert(LYD_CTX(node), orig->name.module_ns, 0, &opaq->name.module_ns), error);
Michal Vasko9cf62422021-07-01 13:29:32 +02003418 LY_CHECK_GOTO(ret = lydict_insert(LYD_CTX(node), orig->value, 0, &opaq->value), error);
3419 opaq->hints = orig->hints;
3420 opaq->format = orig->format;
Michal Vasko6b5cb2a2020-11-11 19:11:21 +01003421 if (orig->val_prefix_data) {
3422 ret = ly_dup_prefix_data(LYD_CTX(node), opaq->format, orig->val_prefix_data, &opaq->val_prefix_data);
3423 LY_CHECK_GOTO(ret, error);
Michal Vasko52927e22020-03-16 17:26:14 +01003424 }
Michal Vasko52927e22020-03-16 17:26:14 +01003425 } else if (dup->schema->nodetype & LYD_NODE_TERM) {
3426 struct lyd_node_term *term = (struct lyd_node_term *)dup;
3427 struct lyd_node_term *orig = (struct lyd_node_term *)node;
3428
3429 term->hash = orig->hash;
Michal Vaskob7be7a82020-08-20 09:09:04 +02003430 LY_CHECK_ERR_GOTO(orig->value.realtype->plugin->duplicate(LYD_CTX(node), &orig->value, &term->value),
Michal Vasko69730152020-10-09 16:30:07 +02003431 LOGERR(LYD_CTX(node), LY_EINT, "Value duplication failed."); ret = LY_EINT, error);
Michal Vasko52927e22020-03-16 17:26:14 +01003432 } else if (dup->schema->nodetype & LYD_NODE_INNER) {
3433 struct lyd_node_inner *orig = (struct lyd_node_inner *)node;
3434 struct lyd_node *child;
3435
3436 if (options & LYD_DUP_RECURSIVE) {
3437 /* duplicate all the children */
3438 LY_LIST_FOR(orig->child, child) {
Michal Vasko3a41dff2020-07-15 14:30:28 +02003439 LY_CHECK_GOTO(ret = lyd_dup_r(child, dup, NULL, options, NULL), error);
Radek Krejci22ebdba2019-07-25 13:59:43 +02003440 }
Michal Vasko69730152020-10-09 16:30:07 +02003441 } else if ((dup->schema->nodetype == LYS_LIST) && !(dup->schema->flags & LYS_KEYLESS)) {
Radek Krejci22ebdba2019-07-25 13:59:43 +02003442 /* always duplicate keys of a list */
Radek Krejci22ebdba2019-07-25 13:59:43 +02003443 child = orig->child;
Michal Vasko544e58a2021-01-28 14:33:41 +01003444 for (const struct lysc_node *key = lysc_node_child(dup->schema);
Michal Vaskoc57d9a92020-06-23 13:28:27 +02003445 key && (key->flags & LYS_KEY);
Radek Krejci0fe9b512019-07-26 17:51:05 +02003446 key = key->next) {
Radek Krejci22ebdba2019-07-25 13:59:43 +02003447 if (!child) {
3448 /* possibly not keys are present in filtered tree */
3449 break;
Radek Krejci0fe9b512019-07-26 17:51:05 +02003450 } else if (child->schema != key) {
3451 /* possibly not all keys are present in filtered tree,
3452 * but there can be also some non-key nodes */
3453 continue;
Radek Krejci22ebdba2019-07-25 13:59:43 +02003454 }
Michal Vasko3a41dff2020-07-15 14:30:28 +02003455 LY_CHECK_GOTO(ret = lyd_dup_r(child, dup, NULL, options, NULL), error);
Radek Krejci22ebdba2019-07-25 13:59:43 +02003456 child = child->next;
3457 }
3458 }
3459 lyd_hash(dup);
3460 } else if (dup->schema->nodetype & LYD_NODE_ANY) {
Michal Vasko61551fa2020-07-09 15:45:45 +02003461 dup->hash = node->hash;
3462 any = (struct lyd_node_any *)node;
3463 LY_CHECK_GOTO(ret = lyd_any_copy_value(dup, &any->value, any->value_type), error);
Radek Krejci22ebdba2019-07-25 13:59:43 +02003464 }
3465
Michal Vasko52927e22020-03-16 17:26:14 +01003466 /* insert */
3467 lyd_insert_node(parent, first, dup);
Michal Vasko52927e22020-03-16 17:26:14 +01003468
3469 if (dup_p) {
3470 *dup_p = dup;
3471 }
3472 return LY_SUCCESS;
Radek Krejci22ebdba2019-07-25 13:59:43 +02003473
3474error:
Michal Vasko52927e22020-03-16 17:26:14 +01003475 lyd_free_tree(dup);
3476 return ret;
Radek Krejci22ebdba2019-07-25 13:59:43 +02003477}
3478
Michal Vasko3a41dff2020-07-15 14:30:28 +02003479static LY_ERR
Michal Vasko20909752021-05-18 16:13:38 +02003480lyd_dup_get_local_parent(const struct lyd_node *node, const struct lyd_node_inner *parent, uint32_t options,
3481 struct lyd_node **dup_parent, struct lyd_node_inner **local_parent)
Radek Krejci22ebdba2019-07-25 13:59:43 +02003482{
Michal Vasko3a41dff2020-07-15 14:30:28 +02003483 const struct lyd_node_inner *orig_parent, *iter;
Radek Krejci857189e2020-09-01 13:26:36 +02003484 ly_bool repeat = 1;
Michal Vasko3a41dff2020-07-15 14:30:28 +02003485
3486 *dup_parent = NULL;
3487 *local_parent = NULL;
3488
3489 for (orig_parent = node->parent; repeat && orig_parent; orig_parent = orig_parent->parent) {
3490 if (parent && (parent->schema == orig_parent->schema)) {
3491 /* stop creating parents, connect what we have into the provided parent */
3492 iter = parent;
3493 repeat = 0;
3494 } else {
3495 iter = NULL;
Michal Vasko20909752021-05-18 16:13:38 +02003496 LY_CHECK_RET(lyd_dup_r((struct lyd_node *)orig_parent, NULL, (struct lyd_node **)&iter, options,
Radek Krejci0f969882020-08-21 16:56:47 +02003497 (struct lyd_node **)&iter));
Michal Vasko3a41dff2020-07-15 14:30:28 +02003498 }
3499 if (!*local_parent) {
3500 *local_parent = (struct lyd_node_inner *)iter;
3501 }
3502 if (iter->child) {
3503 /* 1) list - add after keys
3504 * 2) provided parent with some children */
3505 iter->child->prev->next = *dup_parent;
3506 if (*dup_parent) {
3507 (*dup_parent)->prev = iter->child->prev;
3508 iter->child->prev = *dup_parent;
3509 }
3510 } else {
3511 ((struct lyd_node_inner *)iter)->child = *dup_parent;
3512 }
3513 if (*dup_parent) {
3514 (*dup_parent)->parent = (struct lyd_node_inner *)iter;
3515 }
3516 *dup_parent = (struct lyd_node *)iter;
3517 }
3518
3519 if (repeat && parent) {
3520 /* given parent and created parents chain actually do not interconnect */
Michal Vaskob7be7a82020-08-20 09:09:04 +02003521 LOGERR(LYD_CTX(node), LY_EINVAL,
Michal Vasko69730152020-10-09 16:30:07 +02003522 "Invalid argument parent (%s()) - does not interconnect with the created node's parents chain.", __func__);
Michal Vasko3a41dff2020-07-15 14:30:28 +02003523 return LY_EINVAL;
3524 }
3525
3526 return LY_SUCCESS;
3527}
3528
3529static LY_ERR
Radek Krejci857189e2020-09-01 13:26:36 +02003530lyd_dup(const struct lyd_node *node, struct lyd_node_inner *parent, uint32_t options, ly_bool nosiblings, struct lyd_node **dup)
Michal Vasko3a41dff2020-07-15 14:30:28 +02003531{
3532 LY_ERR rc;
Radek Krejci22ebdba2019-07-25 13:59:43 +02003533 const struct lyd_node *orig; /* original node to be duplicated */
3534 struct lyd_node *first = NULL; /* the first duplicated node, this is returned */
Radek Krejci22ebdba2019-07-25 13:59:43 +02003535 struct lyd_node *top = NULL; /* the most higher created node */
3536 struct lyd_node_inner *local_parent = NULL; /* the direct parent node for the duplicated node(s) */
Radek Krejci22ebdba2019-07-25 13:59:43 +02003537
Michal Vasko3a41dff2020-07-15 14:30:28 +02003538 LY_CHECK_ARG_RET(NULL, node, LY_EINVAL);
Radek Krejci22ebdba2019-07-25 13:59:43 +02003539
3540 if (options & LYD_DUP_WITH_PARENTS) {
Michal Vasko20909752021-05-18 16:13:38 +02003541 LY_CHECK_GOTO(rc = lyd_dup_get_local_parent(node, parent, options & (LYD_DUP_WITH_FLAGS | LYD_DUP_NO_META),
3542 &top, &local_parent), error);
Radek Krejci22ebdba2019-07-25 13:59:43 +02003543 } else {
3544 local_parent = parent;
3545 }
3546
Radek Krejci22ebdba2019-07-25 13:59:43 +02003547 LY_LIST_FOR(node, orig) {
Michal Vasko35f4d772021-01-12 12:08:57 +01003548 if (lysc_is_key(orig->schema)) {
3549 if (local_parent) {
3550 /* the key must already exist in the parent */
3551 rc = lyd_find_sibling_schema(local_parent->child, orig->schema, first ? NULL : &first);
3552 LY_CHECK_ERR_GOTO(rc, LOGINT(LYD_CTX(node)), error);
3553 } else {
3554 assert(!(options & LYD_DUP_WITH_PARENTS));
3555 /* duplicating a single key, okay, I suppose... */
3556 rc = lyd_dup_r(orig, NULL, &first, options, first ? NULL : &first);
3557 LY_CHECK_GOTO(rc, error);
3558 }
3559 } else {
3560 /* if there is no local parent, it will be inserted into first */
Michal Vasko9e543402021-06-11 13:55:30 +02003561 rc = lyd_dup_r(orig, local_parent ? &local_parent->node : NULL, &first, options, first ? NULL : &first);
Michal Vasko35f4d772021-01-12 12:08:57 +01003562 LY_CHECK_GOTO(rc, error);
3563 }
Michal Vasko3a41dff2020-07-15 14:30:28 +02003564 if (nosiblings) {
Radek Krejci22ebdba2019-07-25 13:59:43 +02003565 break;
3566 }
3567 }
Michal Vasko3a41dff2020-07-15 14:30:28 +02003568
Michal Vasko3a41dff2020-07-15 14:30:28 +02003569 if (dup) {
3570 *dup = first;
3571 }
3572 return LY_SUCCESS;
Radek Krejci22ebdba2019-07-25 13:59:43 +02003573
3574error:
3575 if (top) {
3576 lyd_free_tree(top);
3577 } else {
Michal Vaskof03ed032020-03-04 13:31:44 +01003578 lyd_free_siblings(first);
Radek Krejci22ebdba2019-07-25 13:59:43 +02003579 }
Michal Vasko3a41dff2020-07-15 14:30:28 +02003580 return rc;
Radek Krejci22ebdba2019-07-25 13:59:43 +02003581}
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003582
Michal Vasko3a41dff2020-07-15 14:30:28 +02003583API LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +02003584lyd_dup_single(const struct lyd_node *node, struct lyd_node_inner *parent, uint32_t options, struct lyd_node **dup)
Michal Vasko3a41dff2020-07-15 14:30:28 +02003585{
3586 return lyd_dup(node, parent, options, 1, dup);
3587}
3588
3589API LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +02003590lyd_dup_siblings(const struct lyd_node *node, struct lyd_node_inner *parent, uint32_t options, struct lyd_node **dup)
Michal Vasko3a41dff2020-07-15 14:30:28 +02003591{
3592 return lyd_dup(node, parent, options, 0, dup);
3593}
3594
3595API LY_ERR
3596lyd_dup_meta_single(const struct lyd_meta *meta, struct lyd_node *node, struct lyd_meta **dup)
Michal Vasko25a32822020-07-09 15:48:22 +02003597{
Radek Krejci011e4aa2020-09-04 15:22:31 +02003598 LY_ERR ret = LY_SUCCESS;
Michal Vasko25a32822020-07-09 15:48:22 +02003599 struct lyd_meta *mt, *last;
3600
Michal Vasko3a41dff2020-07-15 14:30:28 +02003601 LY_CHECK_ARG_RET(NULL, meta, node, LY_EINVAL);
Michal Vasko25a32822020-07-09 15:48:22 +02003602
3603 /* create a copy */
3604 mt = calloc(1, sizeof *mt);
Michal Vaskob7be7a82020-08-20 09:09:04 +02003605 LY_CHECK_ERR_RET(!mt, LOGMEM(LYD_CTX(node)), LY_EMEM);
Michal Vasko25a32822020-07-09 15:48:22 +02003606 mt->annotation = meta->annotation;
Michal Vaskob7be7a82020-08-20 09:09:04 +02003607 ret = meta->value.realtype->plugin->duplicate(LYD_CTX(node), &meta->value, &mt->value);
Radek Krejci011e4aa2020-09-04 15:22:31 +02003608 LY_CHECK_ERR_GOTO(ret, LOGERR(LYD_CTX(node), LY_EINT, "Value duplication failed."), finish);
3609 LY_CHECK_GOTO(ret = lydict_insert(LYD_CTX(node), meta->name, 0, &mt->name), finish);
Michal Vasko25a32822020-07-09 15:48:22 +02003610
3611 /* insert as the last attribute */
Radek Krejci011e4aa2020-09-04 15:22:31 +02003612 mt->parent = node;
Michal Vasko25a32822020-07-09 15:48:22 +02003613 if (node->meta) {
Radek Krejci1e008d22020-08-17 11:37:37 +02003614 for (last = node->meta; last->next; last = last->next) {}
Michal Vasko25a32822020-07-09 15:48:22 +02003615 last->next = mt;
3616 } else {
3617 node->meta = mt;
3618 }
3619
Radek Krejci011e4aa2020-09-04 15:22:31 +02003620finish:
3621 if (ret) {
3622 lyd_free_meta_single(mt);
3623 } else if (dup) {
Michal Vasko3a41dff2020-07-15 14:30:28 +02003624 *dup = mt;
3625 }
3626 return LY_SUCCESS;
Michal Vasko25a32822020-07-09 15:48:22 +02003627}
3628
Michal Vasko4490d312020-06-16 13:08:55 +02003629/**
3630 * @brief Merge a source sibling into target siblings.
3631 *
3632 * @param[in,out] first_trg First target sibling, is updated if top-level.
3633 * @param[in] parent_trg Target parent.
3634 * @param[in,out] sibling_src Source sibling to merge, set to NULL if spent.
Michal Vaskocd3f6172021-05-18 16:14:50 +02003635 * @param[in] merge_cb Optional merge callback.
3636 * @param[in] cb_data Arbitrary callback data.
Michal Vasko4490d312020-06-16 13:08:55 +02003637 * @param[in] options Merge options.
Michal Vaskocd3f6172021-05-18 16:14:50 +02003638 * @param[in,out] dup_inst Duplicate instance cache for all @p first_trg siblings.
Michal Vasko4490d312020-06-16 13:08:55 +02003639 * @return LY_ERR value.
3640 */
3641static LY_ERR
3642lyd_merge_sibling_r(struct lyd_node **first_trg, struct lyd_node *parent_trg, const struct lyd_node **sibling_src_p,
Michal Vaskocd3f6172021-05-18 16:14:50 +02003643 lyd_merge_cb merge_cb, void *cb_data, uint16_t options, struct lyd_dup_inst **dup_inst)
Michal Vasko4490d312020-06-16 13:08:55 +02003644{
Michal Vasko4490d312020-06-16 13:08:55 +02003645 const struct lyd_node *child_src, *tmp, *sibling_src;
Michal Vasko56daf732020-08-10 10:57:18 +02003646 struct lyd_node *match_trg, *dup_src, *elem;
Michal Vasko4490d312020-06-16 13:08:55 +02003647 struct lysc_type *type;
Michal Vaskocd3f6172021-05-18 16:14:50 +02003648 struct lyd_dup_inst *child_dup_inst = NULL;
3649 LY_ERR ret;
3650 ly_bool first_inst = 0;
Michal Vasko4490d312020-06-16 13:08:55 +02003651
3652 sibling_src = *sibling_src_p;
Michal Vaskocd3f6172021-05-18 16:14:50 +02003653 if (!sibling_src->schema) {
3654 /* try to find the same opaque node */
3655 lyd_find_sibling_opaq_next(*first_trg, LYD_NAME(sibling_src), &match_trg);
3656 } else if (sibling_src->schema->nodetype & (LYS_LIST | LYS_LEAFLIST)) {
Michal Vasko4490d312020-06-16 13:08:55 +02003657 /* try to find the exact instance */
Michal Vaskocd3f6172021-05-18 16:14:50 +02003658 lyd_find_sibling_first(*first_trg, sibling_src, &match_trg);
Michal Vasko4490d312020-06-16 13:08:55 +02003659 } else {
3660 /* try to simply find the node, there cannot be more instances */
Michal Vaskocd3f6172021-05-18 16:14:50 +02003661 lyd_find_sibling_val(*first_trg, sibling_src->schema, NULL, 0, &match_trg);
Michal Vasko4490d312020-06-16 13:08:55 +02003662 }
3663
Michal Vaskocd3f6172021-05-18 16:14:50 +02003664 if (match_trg) {
3665 /* update match as needed */
3666 LY_CHECK_RET(lyd_dup_inst_next(&match_trg, *first_trg, dup_inst));
3667 } else {
3668 /* first instance of this node */
3669 first_inst = 1;
3670 }
3671
3672 if (match_trg) {
3673 /* call callback */
3674 if (merge_cb) {
3675 LY_CHECK_RET(merge_cb(match_trg, sibling_src, cb_data));
3676 }
3677
Michal Vasko4490d312020-06-16 13:08:55 +02003678 /* node found, make sure even value matches for all node types */
Michal Vasko8f359bf2020-07-28 10:41:15 +02003679 if ((match_trg->schema->nodetype == LYS_LEAF) && lyd_compare_single(sibling_src, match_trg, LYD_COMPARE_DEFAULTS)) {
Michal Vasko4490d312020-06-16 13:08:55 +02003680 /* since they are different, they cannot both be default */
3681 assert(!(sibling_src->flags & LYD_DEFAULT) || !(match_trg->flags & LYD_DEFAULT));
3682
Michal Vasko3a41dff2020-07-15 14:30:28 +02003683 /* update value (or only LYD_DEFAULT flag) only if flag set or the source node is not default */
3684 if ((options & LYD_MERGE_DEFAULTS) || !(sibling_src->flags & LYD_DEFAULT)) {
Michal Vasko4490d312020-06-16 13:08:55 +02003685 type = ((struct lysc_node_leaf *)match_trg->schema)->type;
Michal Vaskob7be7a82020-08-20 09:09:04 +02003686 type->plugin->free(LYD_CTX(match_trg), &((struct lyd_node_term *)match_trg)->value);
3687 LY_CHECK_RET(type->plugin->duplicate(LYD_CTX(match_trg), &((struct lyd_node_term *)sibling_src)->value,
Michal Vasko69730152020-10-09 16:30:07 +02003688 &((struct lyd_node_term *)match_trg)->value));
Michal Vasko4490d312020-06-16 13:08:55 +02003689
3690 /* copy flags and add LYD_NEW */
3691 match_trg->flags = sibling_src->flags | LYD_NEW;
3692 }
Michal Vasko8f359bf2020-07-28 10:41:15 +02003693 } else if ((match_trg->schema->nodetype & LYS_ANYDATA) && lyd_compare_single(sibling_src, match_trg, 0)) {
Michal Vasko4c583e82020-07-17 12:16:14 +02003694 /* update value */
3695 LY_CHECK_RET(lyd_any_copy_value(match_trg, &((struct lyd_node_any *)sibling_src)->value,
Radek Krejci0f969882020-08-21 16:56:47 +02003696 ((struct lyd_node_any *)sibling_src)->value_type));
Michal Vasko4490d312020-06-16 13:08:55 +02003697
3698 /* copy flags and add LYD_NEW */
3699 match_trg->flags = sibling_src->flags | LYD_NEW;
Michal Vaskocd3f6172021-05-18 16:14:50 +02003700 }
3701
3702 /* check descendants, recursively */
3703 ret = LY_SUCCESS;
3704 LY_LIST_FOR_SAFE(lyd_child_no_keys(sibling_src), tmp, child_src) {
3705 ret = lyd_merge_sibling_r(lyd_node_child_p(match_trg), match_trg, &child_src, merge_cb, cb_data, options,
3706 &child_dup_inst);
3707 if (ret) {
3708 break;
Michal Vasko4490d312020-06-16 13:08:55 +02003709 }
3710 }
Michal Vaskocd3f6172021-05-18 16:14:50 +02003711 lyd_dup_inst_free(child_dup_inst);
3712 LY_CHECK_RET(ret);
Michal Vasko4490d312020-06-16 13:08:55 +02003713 } else {
3714 /* node not found, merge it */
3715 if (options & LYD_MERGE_DESTRUCT) {
3716 dup_src = (struct lyd_node *)sibling_src;
3717 lyd_unlink_tree(dup_src);
3718 /* spend it */
3719 *sibling_src_p = NULL;
3720 } else {
Michal Vasko3a41dff2020-07-15 14:30:28 +02003721 LY_CHECK_RET(lyd_dup_single(sibling_src, NULL, LYD_DUP_RECURSIVE | LYD_DUP_WITH_FLAGS, &dup_src));
Michal Vasko4490d312020-06-16 13:08:55 +02003722 }
3723
3724 /* set LYD_NEW for all the new nodes, required for validation */
Michal Vasko56daf732020-08-10 10:57:18 +02003725 LYD_TREE_DFS_BEGIN(dup_src, elem) {
Michal Vasko4490d312020-06-16 13:08:55 +02003726 elem->flags |= LYD_NEW;
Michal Vasko56daf732020-08-10 10:57:18 +02003727 LYD_TREE_DFS_END(dup_src, elem);
Michal Vasko4490d312020-06-16 13:08:55 +02003728 }
3729
Michal Vaskocd3f6172021-05-18 16:14:50 +02003730 /* insert */
Michal Vasko4490d312020-06-16 13:08:55 +02003731 lyd_insert_node(parent_trg, first_trg, dup_src);
Michal Vaskocd3f6172021-05-18 16:14:50 +02003732
3733 if (first_inst) {
3734 /* remember not to find this instance next time */
3735 LY_CHECK_RET(lyd_dup_inst_next(&dup_src, *first_trg, dup_inst));
3736 }
3737
3738 /* call callback, no source node */
3739 if (merge_cb) {
3740 LY_CHECK_RET(merge_cb(dup_src, NULL, cb_data));
3741 }
Michal Vasko4490d312020-06-16 13:08:55 +02003742 }
3743
3744 return LY_SUCCESS;
3745}
3746
Michal Vasko3a41dff2020-07-15 14:30:28 +02003747static LY_ERR
Michal Vaskocd3f6172021-05-18 16:14:50 +02003748lyd_merge(struct lyd_node **target, const struct lyd_node *source, const struct lys_module *mod,
3749 lyd_merge_cb merge_cb, void *cb_data, uint16_t options, ly_bool nosiblings)
Michal Vasko4490d312020-06-16 13:08:55 +02003750{
3751 const struct lyd_node *sibling_src, *tmp;
Michal Vaskocd3f6172021-05-18 16:14:50 +02003752 struct lyd_dup_inst *dup_inst = NULL;
Radek Krejci857189e2020-09-01 13:26:36 +02003753 ly_bool first;
Michal Vaskocd3f6172021-05-18 16:14:50 +02003754 LY_ERR ret = LY_SUCCESS;
Michal Vasko4490d312020-06-16 13:08:55 +02003755
3756 LY_CHECK_ARG_RET(NULL, target, LY_EINVAL);
3757
3758 if (!source) {
3759 /* nothing to merge */
3760 return LY_SUCCESS;
3761 }
3762
Michal Vasko831422b2020-11-24 11:20:51 +01003763 if ((*target && lysc_data_parent((*target)->schema)) || lysc_data_parent(source->schema)) {
Michal Vaskob7be7a82020-08-20 09:09:04 +02003764 LOGERR(LYD_CTX(source), LY_EINVAL, "Invalid arguments - can merge only 2 top-level subtrees (%s()).", __func__);
Michal Vasko4490d312020-06-16 13:08:55 +02003765 return LY_EINVAL;
3766 }
3767
3768 LY_LIST_FOR_SAFE(source, tmp, sibling_src) {
Michal Vaskocd3f6172021-05-18 16:14:50 +02003769 if (mod && (lyd_owner_module(sibling_src) != mod)) {
3770 /* skip data nodes from different modules */
3771 continue;
3772 }
3773
Radek Krejci857189e2020-09-01 13:26:36 +02003774 first = (sibling_src == source) ? 1 : 0;
Michal Vaskocd3f6172021-05-18 16:14:50 +02003775 ret = lyd_merge_sibling_r(target, NULL, &sibling_src, merge_cb, cb_data, options, &dup_inst);
3776 if (ret) {
3777 break;
3778 }
Michal Vasko4490d312020-06-16 13:08:55 +02003779 if (first && !sibling_src) {
3780 /* source was spent (unlinked), move to the next node */
3781 source = tmp;
3782 }
3783
Michal Vasko3a41dff2020-07-15 14:30:28 +02003784 if (nosiblings) {
Michal Vasko4490d312020-06-16 13:08:55 +02003785 break;
3786 }
3787 }
3788
3789 if (options & LYD_MERGE_DESTRUCT) {
3790 /* free any leftover source data that were not merged */
3791 lyd_free_siblings((struct lyd_node *)source);
3792 }
3793
Michal Vaskocd3f6172021-05-18 16:14:50 +02003794 lyd_dup_inst_free(dup_inst);
3795 return ret;
Michal Vasko4490d312020-06-16 13:08:55 +02003796}
3797
Michal Vasko3a41dff2020-07-15 14:30:28 +02003798API LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +02003799lyd_merge_tree(struct lyd_node **target, const struct lyd_node *source, uint16_t options)
Michal Vasko3a41dff2020-07-15 14:30:28 +02003800{
Michal Vaskocd3f6172021-05-18 16:14:50 +02003801 return lyd_merge(target, source, NULL, NULL, NULL, options, 1);
Michal Vasko3a41dff2020-07-15 14:30:28 +02003802}
3803
3804API LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +02003805lyd_merge_siblings(struct lyd_node **target, const struct lyd_node *source, uint16_t options)
Michal Vasko3a41dff2020-07-15 14:30:28 +02003806{
Michal Vaskocd3f6172021-05-18 16:14:50 +02003807 return lyd_merge(target, source, NULL, NULL, NULL, options, 0);
3808}
3809
3810API LY_ERR
3811lyd_merge_module(struct lyd_node **target, const struct lyd_node *source, const struct lys_module *mod,
3812 lyd_merge_cb merge_cb, void *cb_data, uint16_t options)
3813{
3814 return lyd_merge(target, source, mod, merge_cb, cb_data, options, 0);
Michal Vasko3a41dff2020-07-15 14:30:28 +02003815}
3816
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003817static LY_ERR
Radek Krejci857189e2020-09-01 13:26:36 +02003818lyd_path_str_enlarge(char **buffer, size_t *buflen, size_t reqlen, ly_bool is_static)
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003819{
Michal Vasko14654712020-02-06 08:35:21 +01003820 /* ending \0 */
3821 ++reqlen;
3822
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003823 if (reqlen > *buflen) {
3824 if (is_static) {
3825 return LY_EINCOMPLETE;
3826 }
3827
3828 *buffer = ly_realloc(*buffer, reqlen * sizeof **buffer);
3829 if (!*buffer) {
3830 return LY_EMEM;
3831 }
3832
3833 *buflen = reqlen;
3834 }
3835
3836 return LY_SUCCESS;
3837}
3838
Michal Vaskod59035b2020-07-08 12:00:06 +02003839LY_ERR
Radek Krejci857189e2020-09-01 13:26:36 +02003840lyd_path_list_predicate(const struct lyd_node *node, char **buffer, size_t *buflen, size_t *bufused, ly_bool is_static)
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003841{
3842 const struct lyd_node *key;
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003843 size_t len;
3844 const char *val;
3845 char quot;
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003846
Radek Krejcia1c1e542020-09-29 16:06:52 +02003847 for (key = lyd_child(node); key && (key->schema->flags & LYS_KEY); key = key->next) {
Radek Krejci6d5ba0c2021-04-26 07:49:59 +02003848 val = lyd_get_value(key);
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003849 len = 1 + strlen(key->schema->name) + 2 + strlen(val) + 2;
Michal Vaskoba99a3e2020-08-18 15:50:05 +02003850 LY_CHECK_RET(lyd_path_str_enlarge(buffer, buflen, *bufused + len, is_static));
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003851
3852 quot = '\'';
3853 if (strchr(val, '\'')) {
3854 quot = '"';
3855 }
3856 *bufused += sprintf(*buffer + *bufused, "[%s=%c%s%c]", key->schema->name, quot, val, quot);
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003857 }
3858
3859 return LY_SUCCESS;
3860}
3861
3862/**
3863 * @brief Append leaf-list value predicate to path.
3864 *
3865 * @param[in] node Node to print.
3866 * @param[in,out] buffer Buffer to print to.
3867 * @param[in,out] buflen Current buffer length.
3868 * @param[in,out] bufused Current number of characters used in @p buffer.
3869 * @param[in] is_static Whether buffer is static or can be reallocated.
3870 * @return LY_ERR
3871 */
3872static LY_ERR
Radek Krejci857189e2020-09-01 13:26:36 +02003873lyd_path_leaflist_predicate(const struct lyd_node *node, char **buffer, size_t *buflen, size_t *bufused, ly_bool is_static)
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003874{
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003875 size_t len;
3876 const char *val;
3877 char quot;
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003878
Radek Krejci6d5ba0c2021-04-26 07:49:59 +02003879 val = lyd_get_value(node);
Radek Krejcif13b87b2020-12-01 22:02:17 +01003880 len = 4 + strlen(val) + 2; /* "[.='" + val + "']" */
Michal Vaskoba99a3e2020-08-18 15:50:05 +02003881 LY_CHECK_RET(lyd_path_str_enlarge(buffer, buflen, *bufused + len, is_static));
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003882
3883 quot = '\'';
3884 if (strchr(val, '\'')) {
3885 quot = '"';
3886 }
3887 *bufused += sprintf(*buffer + *bufused, "[.=%c%s%c]", quot, val, quot);
3888
Michal Vaskoba99a3e2020-08-18 15:50:05 +02003889 return LY_SUCCESS;
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003890}
3891
3892/**
3893 * @brief Append node position (relative to its other instances) predicate to path.
3894 *
3895 * @param[in] node Node to print.
3896 * @param[in,out] buffer Buffer to print to.
3897 * @param[in,out] buflen Current buffer length.
3898 * @param[in,out] bufused Current number of characters used in @p buffer.
3899 * @param[in] is_static Whether buffer is static or can be reallocated.
3900 * @return LY_ERR
3901 */
3902static LY_ERR
Radek Krejci857189e2020-09-01 13:26:36 +02003903lyd_path_position_predicate(const struct lyd_node *node, char **buffer, size_t *buflen, size_t *bufused, ly_bool is_static)
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003904{
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003905 size_t len;
Michal Vasko50cc0562021-05-18 16:15:43 +02003906 uint32_t pos;
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003907 char *val = NULL;
3908 LY_ERR rc;
3909
Michal Vasko50cc0562021-05-18 16:15:43 +02003910 pos = lyd_list_pos(node);
3911 if (asprintf(&val, "%" PRIu32, pos) == -1) {
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003912 return LY_EMEM;
3913 }
3914
3915 len = 1 + strlen(val) + 1;
3916 rc = lyd_path_str_enlarge(buffer, buflen, *bufused + len, is_static);
3917 if (rc != LY_SUCCESS) {
3918 goto cleanup;
3919 }
3920
3921 *bufused += sprintf(*buffer + *bufused, "[%s]", val);
3922
3923cleanup:
3924 free(val);
3925 return rc;
3926}
3927
3928API char *
3929lyd_path(const struct lyd_node *node, LYD_PATH_TYPE pathtype, char *buffer, size_t buflen)
3930{
Radek Krejci857189e2020-09-01 13:26:36 +02003931 ly_bool is_static = 0;
Radek Krejci1deb5be2020-08-26 16:43:36 +02003932 uint32_t i, depth;
Michal Vasko14654712020-02-06 08:35:21 +01003933 size_t bufused = 0, len;
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003934 const struct lyd_node *iter;
3935 const struct lys_module *mod;
Michal Vasko790b2bc2020-08-03 13:35:06 +02003936 LY_ERR rc = LY_SUCCESS;
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003937
3938 LY_CHECK_ARG_RET(NULL, node, NULL);
3939 if (buffer) {
Michal Vasko16385f42021-05-18 16:16:09 +02003940 LY_CHECK_ARG_RET(LYD_CTX(node), buflen > 1, NULL);
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003941 is_static = 1;
Michal Vasko14654712020-02-06 08:35:21 +01003942 } else {
3943 buflen = 0;
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003944 }
3945
3946 switch (pathtype) {
Radek Krejci635d2b82021-01-04 11:26:51 +01003947 case LYD_PATH_STD:
3948 case LYD_PATH_STD_NO_LAST_PRED:
Michal Vasko14654712020-02-06 08:35:21 +01003949 depth = 1;
Michal Vasko9e685082021-01-29 14:49:09 +01003950 for (iter = node; iter->parent; iter = lyd_parent(iter)) {
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003951 ++depth;
3952 }
3953
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003954 goto iter_print;
Michal Vasko14654712020-02-06 08:35:21 +01003955 while (depth) {
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003956 /* find the right node */
Michal Vasko9e685082021-01-29 14:49:09 +01003957 for (iter = node, i = 1; i < depth; iter = lyd_parent(iter), ++i) {}
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003958iter_print:
3959 /* print prefix and name */
3960 mod = NULL;
Michal Vasko69730152020-10-09 16:30:07 +02003961 if (iter->schema && (!iter->parent || (iter->schema->module != iter->parent->schema->module))) {
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003962 mod = iter->schema->module;
3963 }
3964
3965 /* realloc string */
Michal Vaskoad92b672020-11-12 13:11:31 +01003966 len = 1 + (mod ? strlen(mod->name) + 1 : 0) + (iter->schema ? strlen(iter->schema->name) :
3967 strlen(((struct lyd_node_opaq *)iter)->name.name));
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003968 rc = lyd_path_str_enlarge(&buffer, &buflen, bufused + len, is_static);
3969 if (rc != LY_SUCCESS) {
3970 break;
3971 }
3972
3973 /* print next node */
Radek Krejci1798aae2020-07-14 13:26:06 +02003974 bufused += sprintf(buffer + bufused, "/%s%s%s", mod ? mod->name : "", mod ? ":" : "",
Michal Vaskoad92b672020-11-12 13:11:31 +01003975 iter->schema ? iter->schema->name : ((struct lyd_node_opaq *)iter)->name.name);
Michal Vasko5ec7cda2019-09-11 13:43:08 +02003976
Michal Vasko790b2bc2020-08-03 13:35:06 +02003977 /* do not always print the last (first) predicate */
Radek Krejci635d2b82021-01-04 11:26:51 +01003978 if (iter->schema && ((depth > 1) || (pathtype == LYD_PATH_STD))) {
Michal Vasko790b2bc2020-08-03 13:35:06 +02003979 switch (iter->schema->nodetype) {
3980 case LYS_LIST:
3981 if (iter->schema->flags & LYS_KEYLESS) {
3982 /* print its position */
3983 rc = lyd_path_position_predicate(iter, &buffer, &buflen, &bufused, is_static);
3984 } else {
3985 /* print all list keys in predicates */
3986 rc = lyd_path_list_predicate(iter, &buffer, &buflen, &bufused, is_static);
3987 }
3988 break;
3989 case LYS_LEAFLIST:
3990 if (iter->schema->flags & LYS_CONFIG_W) {
3991 /* print leaf-list value */
3992 rc = lyd_path_leaflist_predicate(iter, &buffer, &buflen, &bufused, is_static);
3993 } else {
3994 /* print its position */
3995 rc = lyd_path_position_predicate(iter, &buffer, &buflen, &bufused, is_static);
3996 }
3997 break;
3998 default:
3999 /* nothing to print more */
4000 break;
Michal Vasko5ec7cda2019-09-11 13:43:08 +02004001 }
Michal Vasko5ec7cda2019-09-11 13:43:08 +02004002 }
4003 if (rc != LY_SUCCESS) {
4004 break;
4005 }
4006
Michal Vasko14654712020-02-06 08:35:21 +01004007 --depth;
Michal Vasko5ec7cda2019-09-11 13:43:08 +02004008 }
4009 break;
4010 }
4011
4012 return buffer;
4013}
Michal Vaskoe444f752020-02-10 12:20:06 +01004014
Michal Vasko25a32822020-07-09 15:48:22 +02004015API struct lyd_meta *
4016lyd_find_meta(const struct lyd_meta *first, const struct lys_module *module, const char *name)
4017{
4018 struct lyd_meta *ret = NULL;
4019 const struct ly_ctx *ctx;
4020 const char *prefix, *tmp;
4021 char *str;
4022 size_t pref_len, name_len;
4023
4024 LY_CHECK_ARG_RET(NULL, module || strchr(name, ':'), name, NULL);
4025
4026 if (!first) {
4027 return NULL;
4028 }
4029
4030 ctx = first->annotation->module->ctx;
4031
4032 /* parse the name */
4033 tmp = name;
4034 if (ly_parse_nodeid(&tmp, &prefix, &pref_len, &name, &name_len) || tmp[0]) {
4035 LOGERR(ctx, LY_EINVAL, "Metadata name \"%s\" is not valid.", name);
4036 return NULL;
4037 }
4038
4039 /* find the module */
4040 if (prefix) {
4041 str = strndup(prefix, pref_len);
4042 module = ly_ctx_get_module_latest(ctx, str);
4043 free(str);
Radek Krejci422afb12021-03-04 16:38:16 +01004044 LY_CHECK_ERR_RET(!module, LOGERR(ctx, LY_EINVAL, "Module \"%.*s\" not found.", (int)pref_len, prefix), NULL);
Michal Vasko25a32822020-07-09 15:48:22 +02004045 }
4046
4047 /* find the metadata */
4048 LY_LIST_FOR(first, first) {
4049 if ((first->annotation->module == module) && !strcmp(first->name, name)) {
4050 ret = (struct lyd_meta *)first;
4051 break;
4052 }
4053 }
4054
4055 return ret;
4056}
4057
Michal Vasko9b368d32020-02-14 13:53:31 +01004058API LY_ERR
Michal Vaskoe444f752020-02-10 12:20:06 +01004059lyd_find_sibling_first(const struct lyd_node *siblings, const struct lyd_node *target, struct lyd_node **match)
4060{
Michal Vaskoe78faec2021-04-08 17:24:43 +02004061 struct lyd_node **match_p, *iter;
Michal Vaskoe444f752020-02-10 12:20:06 +01004062 struct lyd_node_inner *parent;
Michal Vaskoe78faec2021-04-08 17:24:43 +02004063 ly_bool found;
Michal Vaskoe444f752020-02-10 12:20:06 +01004064
Michal Vaskof03ed032020-03-04 13:31:44 +01004065 LY_CHECK_ARG_RET(NULL, target, LY_EINVAL);
Michal Vaskoe444f752020-02-10 12:20:06 +01004066
Michal Vasko6da1e952020-12-09 18:14:38 +01004067 if (!siblings || (siblings->schema && target->schema &&
4068 (lysc_data_parent(siblings->schema) != lysc_data_parent(target->schema)))) {
Michal Vasko62ed12d2020-05-21 10:08:25 +02004069 /* no data or schema mismatch */
Michal Vasko9b368d32020-02-14 13:53:31 +01004070 if (match) {
4071 *match = NULL;
4072 }
Michal Vaskoe444f752020-02-10 12:20:06 +01004073 return LY_ENOTFOUND;
4074 }
4075
Michal Vaskoe78faec2021-04-08 17:24:43 +02004076 /* get first sibling */
4077 siblings = lyd_first_sibling(siblings);
Michal Vaskoe444f752020-02-10 12:20:06 +01004078
Michal Vasko9e685082021-01-29 14:49:09 +01004079 parent = siblings->parent;
Michal Vasko6da1e952020-12-09 18:14:38 +01004080 if (parent && parent->schema && parent->children_ht) {
Michal Vaskoe444f752020-02-10 12:20:06 +01004081 assert(target->hash);
4082
Michal Vaskoe78faec2021-04-08 17:24:43 +02004083 if (lysc_is_dup_inst_list(target->schema)) {
4084 /* we must search the instances from beginning to find the first matching one */
4085 found = 0;
4086 LYD_LIST_FOR_INST(siblings, target->schema, iter) {
4087 if (!lyd_compare_single(target, iter, 0)) {
4088 found = 1;
4089 break;
4090 }
4091 }
4092 if (found) {
4093 siblings = iter;
Michal Vaskoda859032020-07-14 12:20:14 +02004094 } else {
4095 siblings = NULL;
4096 }
Michal Vaskoe444f752020-02-10 12:20:06 +01004097 } else {
Michal Vaskoe78faec2021-04-08 17:24:43 +02004098 /* find by hash */
4099 if (!lyht_find(parent->children_ht, &target, target->hash, (void **)&match_p)) {
4100 siblings = *match_p;
4101 } else {
4102 /* not found */
4103 siblings = NULL;
4104 }
Michal Vaskoe444f752020-02-10 12:20:06 +01004105 }
4106 } else {
4107 /* no children hash table */
Michal Vaskod989ba02020-08-24 10:59:24 +02004108 for ( ; siblings; siblings = siblings->next) {
Michal Vasko8f359bf2020-07-28 10:41:15 +02004109 if (!lyd_compare_single(siblings, target, 0)) {
Michal Vaskoe444f752020-02-10 12:20:06 +01004110 break;
4111 }
4112 }
4113 }
4114
4115 if (!siblings) {
Michal Vasko9b368d32020-02-14 13:53:31 +01004116 if (match) {
4117 *match = NULL;
4118 }
Michal Vaskoe444f752020-02-10 12:20:06 +01004119 return LY_ENOTFOUND;
4120 }
4121
Michal Vasko9b368d32020-02-14 13:53:31 +01004122 if (match) {
4123 *match = (struct lyd_node *)siblings;
4124 }
Michal Vaskoe444f752020-02-10 12:20:06 +01004125 return LY_SUCCESS;
4126}
4127
Radek Krejci857189e2020-09-01 13:26:36 +02004128/**
4129 * @brief Comparison callback to match schema node with a schema of a data node.
4130 *
4131 * @param[in] val1_p Pointer to the schema node
4132 * @param[in] val2_p Pointer to the data node
Michal Vasko62524a92021-02-26 10:08:50 +01004133 * Implementation of ::lyht_value_equal_cb.
Radek Krejci857189e2020-09-01 13:26:36 +02004134 */
4135static ly_bool
4136lyd_hash_table_schema_val_equal(void *val1_p, void *val2_p, ly_bool UNUSED(mod), void *UNUSED(cb_data))
Michal Vasko90932a92020-02-12 14:33:03 +01004137{
4138 struct lysc_node *val1;
4139 struct lyd_node *val2;
4140
4141 val1 = *((struct lysc_node **)val1_p);
4142 val2 = *((struct lyd_node **)val2_p);
4143
Michal Vasko90932a92020-02-12 14:33:03 +01004144 if (val1 == val2->schema) {
4145 /* schema match is enough */
4146 return 1;
4147 } else {
4148 return 0;
4149 }
4150}
4151
Michal Vasko92239c72020-11-18 18:17:25 +01004152/**
4153 * @brief Search in the given siblings (NOT recursively) for the first schema node data instance.
4154 * Uses hashes - should be used whenever possible for best performance.
4155 *
4156 * @param[in] siblings Siblings to search in including preceding and succeeding nodes.
4157 * @param[in] schema Target data node schema to find.
4158 * @param[out] match Can be NULL, otherwise the found data node.
4159 * @return LY_SUCCESS on success, @p match set.
4160 * @return LY_ENOTFOUND if not found, @p match set to NULL.
4161 * @return LY_ERR value if another error occurred.
4162 */
Michal Vasko90932a92020-02-12 14:33:03 +01004163static LY_ERR
4164lyd_find_sibling_schema(const struct lyd_node *siblings, const struct lysc_node *schema, struct lyd_node **match)
4165{
4166 struct lyd_node **match_p;
4167 struct lyd_node_inner *parent;
4168 uint32_t hash;
Michal Vasko62524a92021-02-26 10:08:50 +01004169 lyht_value_equal_cb ht_cb;
Michal Vasko90932a92020-02-12 14:33:03 +01004170
Michal Vaskob104f112020-07-17 09:54:54 +02004171 assert(siblings && schema);
Michal Vasko90932a92020-02-12 14:33:03 +01004172
Michal Vasko9e685082021-01-29 14:49:09 +01004173 parent = siblings->parent;
Michal Vasko08fd6132020-11-18 18:17:45 +01004174 if (parent && parent->schema && parent->children_ht) {
Michal Vasko90932a92020-02-12 14:33:03 +01004175 /* calculate our hash */
4176 hash = dict_hash_multi(0, schema->module->name, strlen(schema->module->name));
4177 hash = dict_hash_multi(hash, schema->name, strlen(schema->name));
4178 hash = dict_hash_multi(hash, NULL, 0);
4179
4180 /* use special hash table function */
4181 ht_cb = lyht_set_cb(parent->children_ht, lyd_hash_table_schema_val_equal);
4182
4183 /* find by hash */
4184 if (!lyht_find(parent->children_ht, &schema, hash, (void **)&match_p)) {
4185 siblings = *match_p;
4186 } else {
4187 /* not found */
4188 siblings = NULL;
4189 }
4190
4191 /* set the original hash table compare function back */
4192 lyht_set_cb(parent->children_ht, ht_cb);
4193 } else {
Michal Vaskob104f112020-07-17 09:54:54 +02004194 /* find first sibling */
4195 if (siblings->parent) {
4196 siblings = siblings->parent->child;
4197 } else {
4198 while (siblings->prev->next) {
4199 siblings = siblings->prev;
4200 }
4201 }
4202
4203 /* search manually without hashes */
Michal Vaskod989ba02020-08-24 10:59:24 +02004204 for ( ; siblings; siblings = siblings->next) {
Michal Vasko90932a92020-02-12 14:33:03 +01004205 if (siblings->schema == schema) {
4206 /* schema match is enough */
4207 break;
4208 }
4209 }
4210 }
4211
4212 if (!siblings) {
Michal Vasko9b368d32020-02-14 13:53:31 +01004213 if (match) {
4214 *match = NULL;
4215 }
Michal Vasko90932a92020-02-12 14:33:03 +01004216 return LY_ENOTFOUND;
4217 }
4218
Michal Vasko9b368d32020-02-14 13:53:31 +01004219 if (match) {
4220 *match = (struct lyd_node *)siblings;
4221 }
Michal Vasko90932a92020-02-12 14:33:03 +01004222 return LY_SUCCESS;
4223}
4224
Michal Vaskoe444f752020-02-10 12:20:06 +01004225API LY_ERR
4226lyd_find_sibling_val(const struct lyd_node *siblings, const struct lysc_node *schema, const char *key_or_value,
Radek Krejci0f969882020-08-21 16:56:47 +02004227 size_t val_len, struct lyd_node **match)
Michal Vaskoe444f752020-02-10 12:20:06 +01004228{
4229 LY_ERR rc;
4230 struct lyd_node *target = NULL;
4231
Michal Vasko4c583e82020-07-17 12:16:14 +02004232 LY_CHECK_ARG_RET(NULL, schema, !(schema->nodetype & (LYS_CHOICE | LYS_CASE)), LY_EINVAL);
Michal Vaskoe444f752020-02-10 12:20:06 +01004233
Michal Vasko08fd6132020-11-18 18:17:45 +01004234 if (!siblings || (siblings->schema && (lysc_data_parent(siblings->schema) != lysc_data_parent(schema)))) {
Michal Vasko62ed12d2020-05-21 10:08:25 +02004235 /* no data or schema mismatch */
Michal Vasko9b368d32020-02-14 13:53:31 +01004236 if (match) {
4237 *match = NULL;
4238 }
Michal Vaskoe444f752020-02-10 12:20:06 +01004239 return LY_ENOTFOUND;
4240 }
4241
Michal Vaskof03ed032020-03-04 13:31:44 +01004242 if (key_or_value && !val_len) {
4243 val_len = strlen(key_or_value);
4244 }
4245
Michal Vaskob104f112020-07-17 09:54:54 +02004246 if ((schema->nodetype & (LYS_LIST | LYS_LEAFLIST)) && key_or_value) {
4247 /* create a data node and find the instance */
4248 if (schema->nodetype == LYS_LEAFLIST) {
4249 /* target used attributes: schema, hash, value */
Radek Krejci8df109d2021-04-23 12:19:08 +02004250 rc = lyd_create_term(schema, key_or_value, val_len, NULL, LY_VALUE_JSON, NULL, LYD_HINT_DATA, NULL, &target);
Michal Vaskofeca4fb2020-10-05 08:58:40 +02004251 LY_CHECK_RET(rc);
Michal Vaskob104f112020-07-17 09:54:54 +02004252 } else {
Michal Vasko90932a92020-02-12 14:33:03 +01004253 /* target used attributes: schema, hash, child (all keys) */
Michal Vasko004d3152020-06-11 19:59:22 +02004254 LY_CHECK_RET(lyd_create_list2(schema, key_or_value, val_len, &target));
Michal Vasko90932a92020-02-12 14:33:03 +01004255 }
4256
4257 /* find it */
4258 rc = lyd_find_sibling_first(siblings, target, match);
Michal Vaskob104f112020-07-17 09:54:54 +02004259 } else {
4260 /* find the first schema node instance */
4261 rc = lyd_find_sibling_schema(siblings, schema, match);
Michal Vaskoe444f752020-02-10 12:20:06 +01004262 }
4263
Michal Vaskoe444f752020-02-10 12:20:06 +01004264 lyd_free_tree(target);
4265 return rc;
4266}
Michal Vaskoccc02342020-05-21 10:09:21 +02004267
4268API LY_ERR
Michal Vaskoe78faec2021-04-08 17:24:43 +02004269lyd_find_sibling_dup_inst_set(const struct lyd_node *siblings, const struct lyd_node *target, struct ly_set **set)
4270{
4271 struct lyd_node **match_p, *first, *iter;
4272 struct lyd_node_inner *parent;
4273
4274 LY_CHECK_ARG_RET(NULL, target, lysc_is_dup_inst_list(target->schema), set, LY_EINVAL);
4275
4276 LY_CHECK_RET(ly_set_new(set));
4277
4278 if (!siblings || (siblings->schema && (lysc_data_parent(siblings->schema) != lysc_data_parent(target->schema)))) {
4279 /* no data or schema mismatch */
4280 return LY_ENOTFOUND;
4281 }
4282
4283 /* get first sibling */
4284 siblings = lyd_first_sibling(siblings);
4285
4286 parent = siblings->parent;
4287 if (parent && parent->schema && parent->children_ht) {
4288 assert(target->hash);
4289
4290 /* find the first instance */
4291 lyd_find_sibling_first(siblings, target, &first);
4292 if (first) {
4293 /* add it so that it is the first in the set */
4294 if (ly_set_add(*set, first, 1, NULL)) {
4295 goto error;
4296 }
4297
4298 /* find by hash */
4299 if (!lyht_find(parent->children_ht, &target, target->hash, (void **)&match_p)) {
4300 iter = *match_p;
4301 } else {
4302 /* not found */
4303 iter = NULL;
4304 }
4305 while (iter) {
4306 /* add all found nodes into the set */
4307 if ((iter != first) && !lyd_compare_single(iter, target, 0) && ly_set_add(*set, iter, 1, NULL)) {
4308 goto error;
4309 }
4310
4311 /* find next instance */
4312 if (lyht_find_next(parent->children_ht, &iter, iter->hash, (void **)&match_p)) {
4313 iter = NULL;
4314 } else {
4315 iter = *match_p;
4316 }
4317 }
4318 }
4319 } else {
4320 /* no children hash table */
4321 LY_LIST_FOR(siblings, siblings) {
4322 if (!lyd_compare_single(target, siblings, 0)) {
4323 ly_set_add(*set, (void *)siblings, 1, NULL);
4324 }
4325 }
4326 }
4327
4328 if (!(*set)->count) {
4329 return LY_ENOTFOUND;
4330 }
4331 return LY_SUCCESS;
4332
4333error:
4334 ly_set_free(*set, NULL);
4335 *set = NULL;
4336 return LY_EMEM;
4337}
4338
4339API LY_ERR
Michal Vasko1d4af6c2021-02-22 13:31:26 +01004340lyd_find_sibling_opaq_next(const struct lyd_node *first, const char *name, struct lyd_node **match)
4341{
4342 LY_CHECK_ARG_RET(NULL, name, LY_EINVAL);
4343
4344 for ( ; first; first = first->next) {
4345 if (!first->schema && !strcmp(LYD_NAME(first), name)) {
4346 break;
4347 }
4348 }
4349
4350 if (match) {
4351 *match = (struct lyd_node *)first;
4352 }
4353 return first ? LY_SUCCESS : LY_ENOTFOUND;
4354}
4355
4356API LY_ERR
Michal Vaskoccc02342020-05-21 10:09:21 +02004357lyd_find_xpath(const struct lyd_node *ctx_node, const char *xpath, struct ly_set **set)
4358{
4359 LY_ERR ret = LY_SUCCESS;
4360 struct lyxp_set xp_set;
Radek Krejcif03a9e22020-09-18 20:09:31 +02004361 struct lyxp_expr *exp = NULL;
Michal Vaskoccc02342020-05-21 10:09:21 +02004362 uint32_t i;
4363
4364 LY_CHECK_ARG_RET(NULL, ctx_node, xpath, set, LY_EINVAL);
4365
Michal Vasko37c69432021-04-12 14:48:24 +02004366 *set = NULL;
Michal Vaskoccc02342020-05-21 10:09:21 +02004367 memset(&xp_set, 0, sizeof xp_set);
4368
4369 /* compile expression */
Radek Krejcif03a9e22020-09-18 20:09:31 +02004370 ret = lyxp_expr_parse((struct ly_ctx *)LYD_CTX(ctx_node), xpath, 0, 1, &exp);
4371 LY_CHECK_GOTO(ret, cleanup);
Michal Vaskoccc02342020-05-21 10:09:21 +02004372
4373 /* evaluate expression */
Radek Krejci8df109d2021-04-23 12:19:08 +02004374 ret = lyxp_eval(LYD_CTX(ctx_node), exp, NULL, LY_VALUE_JSON, NULL, ctx_node, ctx_node, &xp_set, LYXP_IGNORE_WHEN);
Michal Vaskoccc02342020-05-21 10:09:21 +02004375 LY_CHECK_GOTO(ret, cleanup);
4376
4377 /* allocate return set */
Radek Krejciba03a5a2020-08-27 14:40:41 +02004378 ret = ly_set_new(set);
4379 LY_CHECK_GOTO(ret, cleanup);
Michal Vaskoccc02342020-05-21 10:09:21 +02004380
4381 /* transform into ly_set */
4382 if (xp_set.type == LYXP_SET_NODE_SET) {
4383 /* allocate memory for all the elements once (even though not all items must be elements but most likely will be) */
4384 (*set)->objs = malloc(xp_set.used * sizeof *(*set)->objs);
Michal Vaskob7be7a82020-08-20 09:09:04 +02004385 LY_CHECK_ERR_GOTO(!(*set)->objs, LOGMEM(LYD_CTX(ctx_node)); ret = LY_EMEM, cleanup);
Michal Vaskoccc02342020-05-21 10:09:21 +02004386 (*set)->size = xp_set.used;
4387
4388 for (i = 0; i < xp_set.used; ++i) {
4389 if (xp_set.val.nodes[i].type == LYXP_NODE_ELEM) {
Radek Krejci3d92e442020-10-12 12:48:13 +02004390 ret = ly_set_add(*set, xp_set.val.nodes[i].node, 1, NULL);
Radek Krejciba03a5a2020-08-27 14:40:41 +02004391 LY_CHECK_GOTO(ret, cleanup);
Michal Vaskoccc02342020-05-21 10:09:21 +02004392 }
4393 }
4394 }
4395
4396cleanup:
Michal Vasko0691d522020-05-21 13:21:47 +02004397 lyxp_set_free_content(&xp_set);
Michal Vaskob7be7a82020-08-20 09:09:04 +02004398 lyxp_expr_free((struct ly_ctx *)LYD_CTX(ctx_node), exp);
Radek Krejci8f45abc2020-11-26 12:15:13 +01004399 if (ret) {
4400 ly_set_free(*set, NULL);
4401 *set = NULL;
4402 }
Michal Vaskoccc02342020-05-21 10:09:21 +02004403 return ret;
4404}
Radek Krejcica989142020-11-05 11:32:22 +01004405
Michal Vasko3e1f6552021-01-14 09:27:55 +01004406API LY_ERR
4407lyd_find_path(const struct lyd_node *ctx_node, const char *path, ly_bool output, struct lyd_node **match)
4408{
4409 LY_ERR ret = LY_SUCCESS;
4410 struct lyxp_expr *expr = NULL;
4411 struct ly_path *lypath = NULL;
4412
4413 LY_CHECK_ARG_RET(NULL, ctx_node, ctx_node->schema, path, LY_EINVAL);
4414
4415 /* parse the path */
Michal Vaskoed725d72021-06-23 12:03:45 +02004416 ret = ly_path_parse(LYD_CTX(ctx_node), ctx_node->schema, path, strlen(path), 0, LY_PATH_BEGIN_EITHER,
Michal Vasko3e1f6552021-01-14 09:27:55 +01004417 LY_PATH_PREFIX_OPTIONAL, LY_PATH_PRED_SIMPLE, &expr);
4418 LY_CHECK_GOTO(ret, cleanup);
4419
4420 /* compile the path */
Michal Vaskoed725d72021-06-23 12:03:45 +02004421 ret = ly_path_compile(LYD_CTX(ctx_node), NULL, ctx_node->schema, NULL, expr,
4422 output ? LY_PATH_OPER_OUTPUT : LY_PATH_OPER_INPUT, LY_PATH_TARGET_SINGLE, LY_VALUE_JSON, NULL, &lypath);
Michal Vasko3e1f6552021-01-14 09:27:55 +01004423 LY_CHECK_GOTO(ret, cleanup);
4424
4425 /* evaluate the path */
4426 ret = ly_path_eval_partial(lypath, ctx_node, NULL, match);
4427
4428cleanup:
4429 lyxp_expr_free(LYD_CTX(ctx_node), expr);
4430 ly_path_free(LYD_CTX(ctx_node), lypath);
4431 return ret;
4432}
4433
Michal Vaskobb22b182021-06-14 08:14:21 +02004434API LY_ERR
4435lyd_find_target(const struct ly_path *path, const struct lyd_node *tree, struct lyd_node **match)
4436{
4437 LY_ERR ret;
4438 struct lyd_node *m;
4439
4440 LY_CHECK_ARG_RET(NULL, path, LY_EINVAL);
4441
4442 ret = ly_path_eval(path, tree, &m);
4443 if (ret) {
4444 if (match) {
4445 *match = NULL;
4446 }
4447 return LY_ENOTFOUND;
4448 }
4449
4450 if (match) {
4451 *match = m;
4452 }
4453 return LY_SUCCESS;
4454}
4455
Radek Krejcica989142020-11-05 11:32:22 +01004456API uint32_t
4457lyd_list_pos(const struct lyd_node *instance)
4458{
4459 const struct lyd_node *iter = NULL;
4460 uint32_t pos = 0;
4461
4462 if (!instance || !(instance->schema->nodetype & (LYS_LIST | LYS_LEAFLIST))) {
4463 return 0;
4464 }
4465
4466 /* data instances are ordered, so we can stop when we found instance of other schema node */
4467 for (iter = instance; iter->schema == instance->schema; iter = iter->prev) {
Radek Krejcibb27df32020-11-13 15:39:16 +01004468 if (pos && (iter->next == NULL)) {
Radek Krejcica989142020-11-05 11:32:22 +01004469 /* overrun to the end of the siblings list */
4470 break;
4471 }
4472 ++pos;
4473 }
4474
4475 return pos;
4476}
Radek Krejci4233f9b2020-11-05 12:38:35 +01004477
4478API struct lyd_node *
4479lyd_first_sibling(const struct lyd_node *node)
4480{
4481 struct lyd_node *start;
4482
4483 if (!node) {
4484 return NULL;
4485 }
4486
4487 /* get the first sibling */
4488 if (node->parent) {
4489 start = node->parent->child;
4490 } else {
Radek Krejcibb27df32020-11-13 15:39:16 +01004491 for (start = (struct lyd_node *)node; start->prev->next; start = start->prev) {}
Radek Krejci4233f9b2020-11-05 12:38:35 +01004492 }
4493
4494 return start;
4495}