--- /dev/null
+/*************************************************************************
+*
+* Copyright 2020 highstreet technologies GmbH and others
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+***************************************************************************/
+
+#define _GNU_SOURCE
+
+#include "populate.h"
+#include "utils/log_utils.h"
+#include "utils/rand_utils.h"
+#include "utils/type_utils.h"
+#include <stdio.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include "core/session.h"
+#include "core/framework.h"
+
+#define SCHEMA_LEAFREF_TOTAL_ENTRIES 11
+
+static int schema_instance_add_module(populate_instance_t *instance, const struct lys_module *module);
+static int schema_populate_late_resolve_add_leaf(populate_job_t *job, populate_instance_t *instance, struct lys_node *schema, struct lyd_node *parent_o, struct lyd_node *parent_r);
+static const char* schema_leafref_temp_val(int index);
+
+int schema_populate_recursive(populate_job_t *job, populate_instance_t *instance, struct lys_node *schema, struct lyd_node *parent_o, struct lyd_node *parent_r) {
+ assert_session();
+ assert(job);
+ assert(schema);
+ assert(instance);
+
+ char *resolved_schema_path = lys_path(schema, LYS_PATH_FIRST_PREFIX);
+ bool schema_operational = ((schema->flags & LYS_CONFIG_W) == 0);
+
+ schema_populate_rerun_switch:
+ switch(schema->nodetype) {
+ //for container, just add it to the xpath, and iterate it's childeren to further traverse the tree
+ case LYS_CONTAINER: {
+ //add container
+
+ struct lyd_node *new_parent_o = parent_o;
+ struct lyd_node *new_parent_r = parent_r;
+
+ new_parent_o = lyd_new(parent_o, schema->module, schema->name);
+ if(!new_parent_o) {
+ log_error("error creating container operational -> %s", schema->name);
+ log_error("ly_error: %s\n", ly_errmsg(session_context));
+ return NTS_ERR_FAILED;
+ }
+
+ if(!schema_operational && !framework_arguments.operational_only) {
+ new_parent_r = lyd_new(parent_r, schema->module, schema->name);
+ if(!new_parent_r) {
+ log_error("error creating container running -> %s", schema->name);
+ log_error("ly_error: %s\n", ly_errmsg(session_context));
+ return NTS_ERR_FAILED;
+ }
+ }
+
+ if(!instance->init) {
+ instance->init = true;
+ instance->operational = new_parent_o;
+ instance->running = new_parent_r;
+ }
+
+ char mandatory = ' ';
+ if((schema->flags & LYS_MAND_TRUE) != 0) {
+ mandatory = 'M';
+ }
+ if((schema->parent) && (schema->parent->nodetype == LYS_CASE)) {
+ if((schema->parent->flags & LYS_MAND_TRUE) != 0) {
+ mandatory = 'M';
+ }
+ }
+ bool node_operational = ((schema->flags & LYS_CONFIG_W) == 0);
+ char *xpath = lyd_path(new_parent_o);
+ log_message(1, LOG_COLOR_BOLD_MAGENTA"[%15s] "LOG_COLOR_BOLD_YELLOW"[%c%c]"LOG_COLOR_RESET" %s\n", "CONTAINER", node_operational ? 'O' : 'R', mandatory, xpath);
+ free(xpath);
+
+ int rc = schema_instance_add_module(instance, schema->module);
+ if(rc != NTS_ERR_OK) {
+ log_error("schema_instance_add_module failed");
+ return rc;
+ }
+
+ struct lys_node *child = 0;
+ LY_TREE_FOR(schema->child, child) {
+ int rc = schema_populate_recursive(job, instance, child, new_parent_o, new_parent_r);
+ if(rc != NTS_ERR_OK) {
+ log_error("schema_populate_recursive failed");
+ return rc;
+ }
+ }
+ } break;
+
+ //choice does not appear into the data path. get all the avalable choices, and choose a random one
+ case LYS_CHOICE: {
+ int choice_no = 0;
+ struct lys_node_case *choice = (struct lys_node_case *)schema->child;
+ while(choice) {
+ choice_no++;
+ choice = (struct lys_node_case *)choice->next;
+ }
+
+ //select a random choice
+ choice_no = rand_uint16() % choice_no;
+
+ int i = 0;
+ choice = (struct lys_node_case *)schema->child;
+ while(i < choice_no) {
+ i++;
+ choice = (struct lys_node_case *)choice->next;
+ }
+
+ //after the choice was made, rerun the adding without other tree-searching (will run into a CASE)
+ schema = (struct lys_node *)choice;
+ goto schema_populate_rerun_switch;
+ } break;
+
+ //the actual "case" is this node's child, so we skip directly to that
+ case LYS_CASE:
+ //case contains mandatory
+ if(schema->child) {
+ schema = schema->child;
+ goto schema_populate_rerun_switch;
+ }
+ else {
+ //blank case
+ return NTS_ERR_OK;
+ }
+ break;
+
+ //populate a list
+ case LYS_LIST: {
+ //get min-max for current list
+ struct lys_node_list *list = (struct lys_node_list *)schema;
+ int min_added = list->min ? list->min : 1;
+ int max_added = list->max ? list->max : 65536;
+
+ int populating_times = framework_populate_get_instance_count(resolved_schema_path);
+ if(populating_times != 0) {
+ if(min_added < populating_times) {
+ min_added = populating_times;
+ }
+ if(min_added > max_added) {
+ min_added = max_added;
+ log_error("min-elements exceeds max-elements for path %s. truncated to %d", resolved_schema_path, max_added);
+ }
+ log_message(2, "populating %d times list '%s'\n", min_added, resolved_schema_path);
+
+ //populate node with the intended number of values
+ while(min_added) {
+ //add list
+
+ struct lyd_node *new_parent_o = parent_o;
+ struct lyd_node *new_parent_r = parent_r;
+
+ new_parent_o = lyd_new(parent_o, schema->module, schema->name);
+ if(!new_parent_o) {
+ log_error("error creating list operational -> %s", schema->name);
+ log_error("ly_error: %s\n", ly_errmsg(session_context));
+ return NTS_ERR_FAILED;
+ }
+
+ if(!schema_operational && !framework_arguments.operational_only) {
+ new_parent_r = lyd_new(parent_r, schema->module, schema->name);
+ if(!new_parent_r) {
+ log_error("error creating container running -> %s", schema->name);
+ log_error("ly_error: %s\n", ly_errmsg(session_context));
+ return NTS_ERR_FAILED;
+ }
+ }
+
+ if(!instance->init) {
+ instance->init = true;
+ instance->operational = new_parent_o;
+ instance->running = new_parent_r;
+ }
+
+ char mandatory = ' ';
+ if((schema->flags & LYS_MAND_TRUE) != 0) {
+ mandatory = 'M';
+ }
+ if((schema->parent) && (schema->parent->nodetype == LYS_CASE)) {
+ if((schema->parent->flags & LYS_MAND_TRUE) != 0) {
+ mandatory = 'M';
+ }
+ }
+ bool node_operational = ((schema->flags & LYS_CONFIG_W) == 0);
+ char *xpath = lyd_path(new_parent_o);
+ log_message(1, LOG_COLOR_BOLD_MAGENTA"[%15s] "LOG_COLOR_BOLD_YELLOW"[%c%c]"LOG_COLOR_RESET" %s\n", "LIST", node_operational ? 'O' : 'R', mandatory, xpath);
+ free(xpath);
+
+ int rc = schema_instance_add_module(instance, schema->module);
+ if(rc != NTS_ERR_OK) {
+ log_error("schema_instance_add_module failed");
+ return rc;
+ }
+
+ //populate all list elements below in the tree
+ struct lys_node *child = 0;
+ LY_TREE_FOR(schema->child, child) {
+ int rc = schema_populate_recursive(job, instance, child, new_parent_o, new_parent_r);
+ if(rc != NTS_ERR_OK) {
+ log_error("schema_populate_recursive failed");
+ return rc;
+ }
+ }
+
+ min_added--;
+ }
+ }
+ else {
+ log_message(2, "not populating list '%s'\n", resolved_schema_path);
+ }
+ } break;
+
+ //populate the leaf
+ case LYS_LEAF: {
+ if(schema_populate_add_leaf(job, instance, schema, parent_o, parent_r) != NTS_ERR_OK) {
+ return NTS_ERR_FAILED;
+ }
+ } break;
+
+ //leaflist is treated the same as a LEAF, but with min/max characteristics of a LIST
+ case LYS_LEAFLIST: {
+ //get min-max for the current leaflist
+ struct lys_node_leaflist *list = (struct lys_node_leaflist *)schema;
+ int min_added = list->min ? list->min : 1;
+ int max_added = list->max ? list->max : 65536;
+
+ int populating_times = framework_populate_get_instance_count(resolved_schema_path);
+ if(populating_times != 0) {
+ if(min_added < populating_times) {
+ min_added = populating_times;
+ }
+ if(min_added > max_added) {
+ min_added = max_added;
+ log_error("min-elements exceeds max-elements for path %s truncated to %d", resolved_schema_path, max_added);
+ }
+ log_message(2, "populating %d times leaflist '%s'\n", min_added, resolved_schema_path);
+
+ //add the leafs
+ while(min_added) {
+ if(schema_populate_add_leaf(job, instance, schema, parent_o, parent_r) != NTS_ERR_OK) {
+ return NTS_ERR_FAILED;
+ }
+ min_added--;
+ }
+ }
+ else {
+ log_message(2, "not populating leaflist '%s'\n", resolved_schema_path);
+ }
+ } break;
+
+ case LYS_ACTION:
+ case LYS_INPUT:
+ case LYS_OUTPUT:
+ case LYS_NOTIF:
+ //don't do anything, since we don't want to add this or go further down the tree when we meet them
+ break;
+
+ //other node types (grouping, uses, augment, etc just traverse)
+ default:
+ log_message(1, "[%15s] %s\n", typeutils_yang_nodetype_to_str(schema->nodetype), resolved_schema_path);
+
+ //traverse the tree down for any other node types, without adding anything to the path
+ struct lys_node *child = 0;
+ LY_TREE_FOR(schema->child, child) {
+ int rc = schema_populate_recursive(job, instance, child, parent_o, parent_r);
+ if(rc != NTS_ERR_OK) {
+ return rc;
+ }
+ }
+ break;
+ }
+
+ free(resolved_schema_path);
+
+ return NTS_ERR_OK;
+}
+
+int schema_populate_add_leaf(populate_job_t *job, populate_instance_t *instance, struct lys_node *schema, struct lyd_node *parent_o, struct lyd_node *parent_r) {
+ assert_session();
+ assert(job);
+ assert(schema);
+ assert(parent_o);
+
+ int rc = schema_instance_add_module(instance, schema->module);
+ if(rc != NTS_ERR_OK) {
+ log_error("bad schema_instance_add module");
+ return rc;
+ }
+
+ struct lys_type *type = &((struct lys_node_leaf *)schema)->type;
+
+ char *data_xpath = lyd_path(parent_o);
+ data_xpath = (char *)realloc(data_xpath, sizeof(char) * (strlen(data_xpath) + 1 + strlen(schema->name) + 1));
+ if(!data_xpath) {
+ log_error("lyd_path failed");
+ return NTS_ERR_FAILED;
+ }
+ strcat(data_xpath, "/");
+ strcat(data_xpath, schema->name);
+
+ //check whether the value is MANDATORY or not (for logging purposes)
+ char mandatory = ' ';
+ if((schema->flags & LYS_MAND_TRUE) != 0) {
+ mandatory = 'M';
+ }
+
+ if((schema->parent) && (schema->parent->nodetype == LYS_CASE)) {
+ if((schema->parent->flags & LYS_MAND_TRUE) != 0) {
+ mandatory = 'M';
+ }
+ }
+
+ bool node_operational = ((schema->flags & LYS_CONFIG_W) == 0);
+ log_message(1, LOG_COLOR_BOLD_MAGENTA"[%15s] "LOG_COLOR_BOLD_YELLOW"[%c%c]"LOG_COLOR_RESET" %s <-- ", typeutils_yang_type_to_str(type->base), node_operational ? 'O' : 'R', mandatory, data_xpath);
+ free(data_xpath);
+
+
+ char *resolved_schema_path = lys_path(schema, LYS_PATH_FIRST_PREFIX);
+ char *value = framework_populate_get_restrict_schema(resolved_schema_path);
+ free(resolved_schema_path);
+
+ schema_populate_add_leaf_rerun_switch:
+ switch(type->base) {
+ case LY_TYPE_UNION:
+ if((type->info.uni.count == 0) && (type->der != 0)) {
+ type = &type->der->type;
+ }
+
+ type = &type->info.uni.types[0];
+ goto schema_populate_add_leaf_rerun_switch;
+ break;
+
+ case LY_TYPE_INST: {
+ struct lyd_node *parent = parent_o;
+ while(parent->parent) {
+ parent = parent->parent;
+ }
+
+ if(value == 0) {
+ value = lyd_path(parent);
+ }
+
+ goto schema_populate_add_leaf_actual_add;
+ } break;
+
+ case LY_TYPE_EMPTY:
+ if(rand_bool()) { //if present, add it
+ log_message(1, LOG_COLOR_CYAN"present"LOG_COLOR_RESET"\n");
+ goto schema_populate_add_leaf_actual_add;
+ }
+ else {
+ log_message(1, LOG_COLOR_CYAN"empty"LOG_COLOR_RESET"\n");
+ return NTS_ERR_OK;
+ }
+ break;
+
+ case LY_TYPE_LEAFREF: {
+ if(value == 0) {
+ int index = 0;
+ struct lyd_node *new_node = 0;
+ while((new_node == 0) && (index < SCHEMA_LEAFREF_TOTAL_ENTRIES)) {
+ new_node = lyd_new_leaf(parent_o, schema->module, schema->name, schema_leafref_temp_val(index));
+ index++;
+ }
+
+ if(new_node == 0) {
+ log_error("error on lyd_new_leaf schema %s. didn't work with any temp val", schema->name);
+ return NTS_ERR_FAILED;
+ }
+
+ //based on the new_node's path, try to find elements of relative path for the leafref
+ struct ly_set *set = lyd_find_path(new_node, type->info.lref.path);
+ lyd_free(new_node);
+
+ if(set && set->number) {
+ //choose a random schema and get its value
+ static int set_number = 0; //checkAL aici trebuia oare random ?
+ set_number++;
+ if(set_number >= set->number) {
+ set_number = 0;
+ }
+ asprintf(&value, "%s", ((struct lyd_node_leaf_list *)set->set.d[set_number])->value_str);
+ if(!value) {
+ log_error("bad asprintf");
+ return NTS_ERR_FAILED;
+ }
+
+ int rc = schema_instance_add_module(instance, set->set.d[set_number]->schema->module);
+ if(rc != NTS_ERR_OK) {
+ log_error("bad schema_instance_add module");
+ return rc;
+ }
+
+ ly_set_free(set);
+
+ goto schema_populate_add_leaf_actual_add;
+ }
+ else {
+ //adding to late-resolve list, as we don't have any nodes in the leafref path
+ int rc = schema_populate_late_resolve_add_leaf(job, instance, schema, parent_o, parent_r);
+ if(rc != NTS_ERR_OK) {
+ return rc;
+ }
+
+ if(!job->late_resolving) {
+ log_message(1, LOG_COLOR_BOLD_YELLOW"added to late-resolve list...\n"LOG_COLOR_RESET);
+ }
+ else {
+ log_message(1, LOG_COLOR_BOLD_YELLOW"REadded to late-resolve list...\n"LOG_COLOR_RESET);
+ }
+
+ return NTS_ERR_OK;
+ }
+ }
+ } break;
+
+ default:
+ if(value == 0) {
+ value = rand_get_populate_value(type);
+ }
+ goto schema_populate_add_leaf_actual_add;
+ break;
+ }
+
+ schema_populate_add_leaf_actual_add: {
+ //add schema to operational
+ struct lyd_node *new_node = lyd_new_leaf(parent_o, schema->module, schema->name, value);
+ if(new_node == 0) {
+ log_error("error on lyd_new_leaf operational: %s", ly_errmsg(session_context));
+ return NTS_ERR_FAILED;
+ }
+
+ //print out the value
+ if(value) {
+ log_message(1, LOG_COLOR_CYAN"'%s'"LOG_COLOR_RESET"\n", value);
+ }
+ else {
+ log_message(1, "\n");
+ }
+
+ //if it fits the case, add it also to running
+ if(!node_operational && !framework_arguments.operational_only) {
+ struct lyd_node *new_node = lyd_new_leaf(parent_r, schema->module, schema->name, value);
+ if(new_node == 0) {
+ log_error("error on lyd_new_leaf running: %s", ly_errmsg(session_context));
+ return NTS_ERR_FAILED;
+ }
+ }
+
+ free(value);
+ }
+
+ return NTS_ERR_OK;
+}
+
+static int schema_instance_add_module(populate_instance_t *instance, const struct lys_module *module) {
+ assert(module);
+ assert(instance);
+
+ for(int i = 0; i < instance->mod_count; i++) {
+ if(instance->modules[i] == module) {
+ return NTS_ERR_OK;
+ }
+ }
+
+ instance->modules = (const struct lys_module **)realloc(instance->modules, sizeof(const struct lys_module *) * (instance->mod_count + 1));
+ if(!instance->modules) {
+ log_error("bad realloc");
+ return NTS_ERR_FAILED;
+ }
+ instance->modules[instance->mod_count] = module;
+ instance->mod_count++;
+
+ return NTS_ERR_OK;
+}
+
+static int schema_populate_late_resolve_add_leaf(populate_job_t *job, populate_instance_t *instance, struct lys_node *schema, struct lyd_node *parent_o, struct lyd_node *parent_r) {
+ assert(job);
+ assert(instance);
+
+ job->late_resolve_schema = (struct lys_node **)realloc(job->late_resolve_schema, (job->late_resolve_count + 1) * sizeof(struct lys_node *));
+ if(!job->late_resolve_schema) {
+ log_error("bad realloc");
+ return NTS_ERR_FAILED;
+ }
+ job->late_resolve_schema[job->late_resolve_count] = schema;
+
+ job->late_resolve_parent_o = (struct lyd_node **)realloc(job->late_resolve_parent_o, (job->late_resolve_count + 1) * sizeof(struct lyd_node *));
+ if(!job->late_resolve_parent_o) {
+ log_error("bad realloc");
+ return NTS_ERR_FAILED;
+ }
+ job->late_resolve_parent_o[job->late_resolve_count] = parent_o;
+
+ job->late_resolve_parent_r = (struct lyd_node **)realloc(job->late_resolve_parent_r, (job->late_resolve_count + 1) * sizeof(struct lyd_node *));
+ if(!job->late_resolve_parent_r) {
+ log_error("bad realloc");
+ return NTS_ERR_FAILED;
+ }
+ job->late_resolve_parent_r[job->late_resolve_count] = parent_r;
+
+ job->late_resolve_instance = (populate_instance_t **)realloc(job->late_resolve_instance, (job->late_resolve_count + 1) * sizeof(populate_instance_t *));
+ if(!job->late_resolve_instance) {
+ log_error("bad realloc");
+ return NTS_ERR_FAILED;
+ }
+ job->late_resolve_instance[job->late_resolve_count] = instance;
+
+ job->late_resolve_count++;
+
+ return NTS_ERR_OK;
+}
+
+static const char* schema_leafref_temp_val(int index) {
+ switch(index) {
+ case 0:
+ return "1";
+ break;
+
+ case 1:
+ return "1.1.1.1";
+ break;
+
+ case 2:
+ return "Fd:4D:63:A5:21:C5";
+ break;
+
+ case 3:
+ return "";
+ break;
+
+ case 4:
+ return "::1";
+ break;
+
+ case 5:
+ return "false";
+ break;
+
+ case 6:
+ return "TDD";
+ break;
+
+ case 7:
+ return "NR";
+ break;
+
+ case 8:
+ return "best-effort";
+ break;
+
+ case 9:
+ return "yes-fault:o-ran-sc-alarm-type";
+ break;
+
+ case 10:
+ return "";
+ break;
+
+
+
+
+ default:
+ log_error("index out of bounds");
+ return 0;
+ break;
+ }
+}