--- /dev/null
+/*
+ * core-model.c
+ *
+ * Created on: Feb 19, 2019
+ * Author: parallels
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <signal.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <string.h>
+
+#include "sysrepo.h"
+#include "sysrepo/values.h"
+
+#include "utils.h"
+#include "simulator-operations.h"
+
+volatile int exit_application = 0;
+
+volatile unsigned int simulated_devices_config = 0;
+volatile unsigned int mounted_devices_config = 0;
+
+
+static device_stack_t *device_list = NULL;
+
+controller_t controller_details;
+
+#define XPATH_MAX_LEN 500
+#define CONTROLLER_LIST_MAX_LEN 1
+
+static void
+print_current_config(sr_session_ctx_t *session, const char *module_name)
+{
+ sr_val_t *values = NULL;
+ size_t count = 0;
+ int rc = SR_ERR_OK;
+ char xpath[XPATH_MAX_LEN] = {0};
+ snprintf(xpath, XPATH_MAX_LEN, "/%s:*//.", module_name);
+
+ sr_val_t *odl_ip = NULL;
+ sr_val_t *odl_port = NULL;
+ sr_val_t *odl_username = NULL;
+ sr_val_t *odl_password = NULL;
+
+ rc = sr_get_items(session, xpath, &values, &count);
+ if (SR_ERR_OK != rc) {
+ printf("Error by sr_get_items: %s\n", sr_strerror(rc));
+ return;
+ }
+ for (size_t i = 0; i < count; i++){
+
+ sr_print_val(&values[i]);
+
+ if (sr_xpath_node_name_eq(values[i].xpath, "controller-ip"))
+ {
+ rc = sr_dup_val(&values[i], &odl_ip);
+ }
+ else if (sr_xpath_node_name_eq(values[i].xpath, "controller-port"))
+ {
+ rc = sr_dup_val(&values[i], &odl_port);
+ }
+ else if (sr_xpath_node_name_eq(values[i].xpath, "controller-username"))
+ {
+ rc = sr_dup_val(&values[i], &odl_username);
+ }
+ else if (sr_xpath_node_name_eq(values[i].xpath, "controller-password"))
+ {
+ rc = sr_dup_val(&values[i], &odl_password);
+ }
+ }
+
+ //URL used for mounting/unmounting a device; the device name needs to be appended
+ char url[URL_AND_CREDENTIALS_MAX_LEN];
+ sprintf(url, "http://%s:%d/restconf/config/network-topology:network-topology/topology/"
+ "topology-netconf/node/",
+ odl_ip->data.string_val, odl_port->data.uint32_val);
+
+ char credentials[URL_AND_CREDENTIALS_MAX_LEN];
+ sprintf(credentials, "%s:%s", odl_username->data.string_val, odl_password->data.string_val);
+
+ //URLs used for adding key pair to ODL, for TLS connections
+ char url_for_keystore_add[URL_AND_CREDENTIALS_MAX_LEN];
+ sprintf(url_for_keystore_add, "http://%s:%d/restconf/operations/netconf-keystore:add-keystore-entry",
+ odl_ip->data.string_val, odl_port->data.uint32_val);
+
+ char url_for_private_key_add[URL_AND_CREDENTIALS_MAX_LEN];
+ sprintf(url_for_private_key_add, "http://%s:%d/restconf/operations/netconf-keystore:add-private-key",
+ odl_ip->data.string_val, odl_port->data.uint32_val);
+
+ char url_for_trusted_ca_add[URL_AND_CREDENTIALS_MAX_LEN];
+ sprintf(url_for_trusted_ca_add, "http://%s:%d/restconf/operations/netconf-keystore:add-trusted-certificate",
+ odl_ip->data.string_val, odl_port->data.uint32_val);
+
+ strcpy(controller_details.url, url);
+ strcpy(controller_details.credentials, credentials);
+ strcpy(controller_details.url_for_keystore_add, url_for_keystore_add);
+ strcpy(controller_details.url_for_private_key_add, url_for_private_key_add);
+ strcpy(controller_details.url_for_trusted_ca_add, url_for_trusted_ca_add);
+
+ sr_free_val(odl_ip);
+ sr_free_val(odl_port);
+ sr_free_val(odl_username);
+ sr_free_val(odl_password);
+
+ sr_free_values(values, count);
+}
+
+static void clean_current_docker_configuration(void);
+
+static int simulated_devices_changed(int new_value)
+{
+ int rc = SR_ERR_OK;
+
+ if (simulated_devices_config > new_value)
+ {
+ //we are configuring less elements that currently
+ for (int i = 0; i < simulated_devices_config - new_value; ++i)
+ {
+ rc = stop_device(device_list);
+ }
+ }
+ else if (simulated_devices_config < new_value)
+ {
+ //we are configuring more elements that currently
+ for (int i = 0; i < new_value - simulated_devices_config; ++i)
+ {
+ rc = start_device(device_list);
+ }
+ }
+
+ simulated_devices_config = new_value;
+
+ return rc;
+}
+
+int mounted_devices_changed(sr_session_ctx_t *session, int new_value)
+{
+ int rc = SR_ERR_OK;
+
+ if (mounted_devices_config > new_value)
+ {
+ //we need have less mounted elements
+ for (int i = 0; i < mounted_devices_config - new_value; ++i)
+ {
+ printf("Sending unmount device...\n");
+ rc = unmount_device(device_list, controller_details);
+ }
+ }
+ else if (mounted_devices_config < new_value)
+ {
+ //we are configuring more elements that currently
+ for (int i = 0; i < new_value - mounted_devices_config; ++i)
+ {
+ printf("Sending mount device...\n");
+ rc = mount_device(device_list, controller_details);
+ }
+ }
+
+ mounted_devices_config = new_value;
+
+ return rc;
+}
+
+static int
+simulator_config_change_cb(sr_session_ctx_t *session, const char *module_name, sr_notif_event_t event, void *private_ctx)
+{
+ int rc;
+
+ printf("\n\n ========== CONFIG HAS CHANGED, CURRENT RUNNING CONFIG %s: ==========\n\n", module_name);
+ print_current_config(session, module_name);
+
+ sr_val_t *val;
+
+ /* get the value from sysrepo, we do not care if the value did not change in our case */
+ rc = sr_get_item(session, "/network-topology-simulator:simulator-config/simulated-devices", &val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ rc = simulated_devices_changed(val->data.uint32_val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ sr_free_val(val);
+
+ /* get the value from sysrepo, we do not care if the value did not change in our case */
+ rc = sr_get_item(session, "/network-topology-simulator:simulator-config/mounted-devices", &val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ if (mounted_devices_config != val->data.uint32_val)
+ {
+ if (val->data.uint32_val > simulated_devices_config)
+ {
+ printf("Cannot set mount value greater than number of simulated devices.\n");
+ sr_free_val(val);
+ return SR_ERR_OK;
+ }
+
+ rc = mounted_devices_changed(session, val->data.uint32_val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+ }
+
+ sr_free_val(val);
+
+ /* get the value from sysrepo, we do not care if the value did not change in our case */
+ rc = sr_get_item(session, "/network-topology-simulator:simulator-config/notification-config/fault-notification-delay-period", &val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ rc = notification_delay_period_changed(val->data.uint32_val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ sr_free_val(val);
+
+ /* get the value from sysrepo, we do not care if the value did not change in our case */
+ rc = sr_get_item(session, "/network-topology-simulator:simulator-config/notification-config/ves-heartbeat-period", &val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ rc = ves_heartbeat_period_changed(val->data.uint32_val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ sr_free_val(val);
+
+ /* get the value from sysrepo, we do not care if the value did not change in our case */
+ rc = sr_get_item(session, "/network-topology-simulator:simulator-config/ves-endpoint-details/ves-endpoint-ip", &val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ rc = ves_ip_changed(val->data.string_val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ sr_free_val(val);
+
+ /* get the value from sysrepo, we do not care if the value did not change in our case */
+ rc = sr_get_item(session, "/network-topology-simulator:simulator-config/ves-endpoint-details/ves-endpoint-port", &val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ rc = ves_port_changed(val->data.uint16_val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ sr_free_val(val);
+
+ /* get the value from sysrepo, we do not care if the value did not change in our case */
+ rc = sr_get_item(session, "/network-topology-simulator:simulator-config/ves-endpoint-details/ves-registration", &val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ rc = ves_registration_changed(val->data.bool_val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ sr_free_val(val);
+
+ /* get the value from sysrepo, we do not care if the value did not change in our case */
+ rc = sr_get_item(session, "/network-topology-simulator:simulator-config/notification-config/is-netconf-available", &val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ rc = is_netconf_available_changed(val->data.bool_val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ sr_free_val(val);
+
+ /* get the value from sysrepo, we do not care if the value did not change in our case */
+ rc = sr_get_item(session, "/network-topology-simulator:simulator-config/notification-config/is-ves-available", &val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ rc = is_ves_available_changed(val->data.bool_val);
+ if (rc != SR_ERR_OK) {
+ goto sr_error;
+ }
+
+ sr_free_val(val);
+
+ return SR_ERR_OK;
+
+sr_error:
+ printf("NTSimulator config change callback failed: %s.", sr_strerror(rc));
+ return rc;
+}
+
+static int
+simulator_status_cb(const char *xpath, sr_val_t **values, size_t *values_cnt,
+ uint64_t request_id, const char *original_xpath, void *private_ctx)
+{
+ int rc;
+
+ printf("\n\n ========== Called simulator_status_cb for xpath: %s ==========\n\n", xpath);
+
+ if (sr_xpath_node_name_eq(xpath, "simulated-devices-list")) {
+ sr_val_t *v;
+ size_t current_num_of_values= 0;
+
+ if (simulated_devices_config == 0) //nothing to return if no devices are running
+ {
+ *values = NULL;
+ *values_cnt = 0;
+
+ return SR_ERR_OK;
+ }
+
+ rc = get_docker_containers_operational_state_curl(device_list);
+ if (rc != SR_ERR_OK)
+ {
+ printf("Could not get the operational state for the devices simulated.\n");
+ }
+
+ device_t *current_device = device_list->head;
+
+ while (current_device != NULL)
+ {
+ CREATE_NEW_VALUE(rc, v, current_num_of_values);
+
+ sr_val_build_xpath(&v[current_num_of_values - 1], "%s[uuid='%s']/%s", xpath, current_device->device_id, "device-ip");
+ v[current_num_of_values - 1].type = SR_STRING_T;
+ v[current_num_of_values - 1].data.string_val = getenv("NTS_IP");
+
+ for (int i = 0; i < NETCONF_CONNECTIONS_PER_DEVICE; ++i)
+ {
+ CREATE_NEW_VALUE(rc, v, current_num_of_values);
+
+ sr_val_build_xpath(&v[current_num_of_values - 1], "%s[uuid='%s']/%s", xpath, current_device->device_id, "device-port");
+ v[current_num_of_values - 1].type = SR_UINT32_T;
+ v[current_num_of_values - 1].data.uint32_val = current_device->netconf_port + i;
+ }
+
+ CREATE_NEW_VALUE(rc, v, current_num_of_values);
+
+ sr_val_build_xpath(&v[current_num_of_values - 1], "%s[uuid='%s']/%s", xpath, current_device->device_id, "is-mounted");
+ v[current_num_of_values - 1].type = SR_BOOL_T;
+ v[current_num_of_values - 1].data.bool_val = current_device->is_mounted;
+
+ char *operational_state = get_docker_container_operational_state(device_list, current_device->device_id);
+
+ CREATE_NEW_VALUE(rc, v, current_num_of_values);
+
+ sr_val_build_xpath(&v[current_num_of_values - 1], "%s[uuid='%s']/%s", xpath, current_device->device_id, "operational-state");
+ sr_val_build_str_data(&v[current_num_of_values - 1], SR_ENUM_T, "%s", operational_state);
+
+ current_device = current_device->next;
+ }
+
+ //return the values that we have just created
+ *values = v;
+ *values_cnt = current_num_of_values;
+ }
+ else if (sr_xpath_node_name_eq(xpath, "simulation-usage-details"))
+ {
+ float cpu_usage = 0.0, mem_usage = 0.0;
+
+ char *resource_usage_from_script = get_docker_container_resource_stats();
+
+ if (resource_usage_from_script != NULL)
+ {
+ printf("Received line: %s\n", resource_usage_from_script);
+ sscanf(resource_usage_from_script, "CPU=%f%%;RAM=%fMiB", &cpu_usage, &mem_usage);
+ printf("Read cpu=\"%f\" and mem=\"%f\"\n", cpu_usage, mem_usage);
+ free(resource_usage_from_script);
+ }
+
+ sr_val_t *v;
+ /* convenient functions such as this can be found in sysrepo/values.h */
+ size_t current_num_of_values= 0;
+
+ CREATE_NEW_VALUE(rc, v, current_num_of_values);
+
+ sr_val_build_xpath(&v[current_num_of_values - 1], "%s/%s", xpath, "running-simulated-devices");
+ v[current_num_of_values - 1].type = SR_UINT32_T;
+ v[current_num_of_values - 1].data.uint32_val = get_current_number_of_devices(device_list);
+
+ CREATE_NEW_VALUE(rc, v, current_num_of_values);
+
+ sr_val_build_xpath(&v[current_num_of_values - 1], "%s/%s", xpath, "running-mounted-devices");
+ v[current_num_of_values - 1].type = SR_UINT32_T;
+ v[current_num_of_values - 1].data.uint32_val = get_current_number_of_mounted_devices(device_list);
+
+ CREATE_NEW_VALUE(rc, v, current_num_of_values);
+
+ sr_val_build_xpath(&v[current_num_of_values - 1], "%s/%s", xpath, "base-netconf-port");
+ v[current_num_of_values - 1].type = SR_UINT32_T;
+ v[current_num_of_values - 1].data.uint32_val = get_netconf_port_base();
+
+ CREATE_NEW_VALUE(rc, v, current_num_of_values);
+
+ sr_val_build_xpath(&v[current_num_of_values - 1], "%s/%s", xpath, "cpu-usage");
+ v[current_num_of_values - 1].type = SR_DECIMAL64_T;
+ v[current_num_of_values - 1].data.decimal64_val = cpu_usage;
+
+ CREATE_NEW_VALUE(rc, v, current_num_of_values);
+
+ sr_val_build_xpath(&v[current_num_of_values - 1], "%s/%s", xpath, "mem-usage");
+ v[current_num_of_values - 1].type = SR_UINT32_T;
+ v[current_num_of_values - 1].data.uint32_val = (int)mem_usage;
+
+ //return the values that we have just created
+ *values = v;
+ *values_cnt = current_num_of_values;
+ }
+
+ return SR_ERR_OK;
+}
+
+int odl_add_key_pair_cb(const char *xpath, const sr_val_t *input, const size_t input_cnt,
+ sr_val_t **output, size_t *output_cnt, void *private_ctx)
+{
+ int rc = SR_ERR_OK;
+ sr_session_ctx_t *session = (sr_session_ctx_t *)private_ctx;
+ controller_t controller_list[CONTROLLER_LIST_MAX_LEN];
+ int controller_list_size = 0;
+
+ controller_list[0] = controller_details;
+ controller_list_size++;
+
+ for (int i = 0; i < controller_list_size; ++i)
+ {
+ printf("%d iteration: Got back url=%s and credentials=%s\n", i, controller_list[i].url, controller_list[i].credentials);
+ }
+
+ rc = add_key_pair_to_odl(controller_list, controller_list_size);
+ if (rc != SR_ERR_OK)
+ {
+ printf("Failed to add key pair to ODL.\n");
+ }
+
+ return rc;
+}
+
+
+static void
+sigint_handler(int signum)
+{
+ exit_application = 1;
+}
+
+int
+main(int argc, char **argv)
+{
+ sr_conn_ctx_t *connection = NULL;
+ sr_session_ctx_t *session = NULL;
+ sr_subscription_ctx_t *subscription = NULL;
+ int rc = SR_ERR_OK;
+
+ setbuf(stdout, NULL);
+
+ device_list = new_device_stack();
+ rc = _init_curl();
+ if (rc != SR_ERR_OK)
+ {
+ fprintf(stderr, "Could not initialize cURL: %s\n", sr_strerror(rc));
+ }
+
+ /* connect to sysrepo */
+ rc = sr_connect("network-topology-simulator", SR_CONN_DEFAULT, &connection);
+ if (SR_ERR_OK != rc) {
+ fprintf(stderr, "Error by sr_connect: %s\n", sr_strerror(rc));
+ goto cleanup;
+ }
+
+ /* start session */
+ rc = sr_session_start(connection, SR_DS_STARTUP, SR_SESS_DEFAULT, &session);
+ if (SR_ERR_OK != rc) {
+ fprintf(stderr, "Error by sr_session_start: %s\n", sr_strerror(rc));
+ goto cleanup;
+ }
+
+ /* read startup config */
+ printf("\n\n ========== READING STARTUP CONFIG network-topology-simulator: ==========\n\n");
+ print_current_config(session, "network-topology-simulator");
+
+ /* subscribe for changes in running config */
+ rc = sr_module_change_subscribe(session, "network-topology-simulator", simulator_config_change_cb, NULL,
+ 0, SR_SUBSCR_DEFAULT | SR_SUBSCR_APPLY_ONLY, &subscription);
+ if (SR_ERR_OK != rc) {
+ fprintf(stderr, "Error by sr_module_change_subscribe: %s\n", sr_strerror(rc));
+ goto cleanup;
+ }
+
+ /* subscribe as state data provider for the ntsimulator state data */
+ rc = sr_dp_get_items_subscribe(session, "/network-topology-simulator:simulator-status", simulator_status_cb, NULL,
+ SR_SUBSCR_CTX_REUSE, &subscription);
+ if (rc != SR_ERR_OK) {
+ goto cleanup;
+ }
+
+ rc = notification_delay_period_changed(0);
+ if (rc != SR_ERR_OK) {
+ printf("Could not write the delay period to file!\n");
+ goto cleanup;
+ }
+
+ rc = _init_curl_odl();
+ if (rc != SR_ERR_OK)
+ {
+ fprintf(stderr, "Could not initialize cURL for ODL connection: %s\n", sr_strerror(rc));
+ }
+
+ rc = sr_rpc_subscribe(session, "/network-topology-simulator:add-key-pair-to-odl", odl_add_key_pair_cb, (void *)session,
+ SR_SUBSCR_CTX_REUSE, &subscription);
+
+ printf("\n\n ========== STARTUP CONFIG network-topology-simulator APPLIED AS RUNNING ==========\n\n");
+
+ /* loop until ctrl-c is pressed / SIGINT is received */
+ signal(SIGINT, sigint_handler);
+ signal(SIGTERM, sigint_handler);
+ signal(SIGPIPE, SIG_IGN);
+
+ while (!exit_application) {
+
+ sleep(1); /* or do some more useful work... */
+ }
+
+ printf("Application exit requested, exiting.\n");
+
+cleanup:
+ if (NULL != subscription) {
+ sr_unsubscribe(session, subscription);
+ }
+ if (NULL != session) {
+ sr_session_stop(session);
+ }
+ if (NULL != connection) {
+ sr_disconnect(connection);
+ }
+
+ clean_current_docker_configuration();
+ rc = cleanup_curl();
+ rc = cleanup_curl_odl();
+
+ return rc;
+}
+
+static void clean_current_docker_configuration(void)
+{
+ printf("Cleaning docker containers...\n");
+
+ if (device_list == NULL)
+ {
+ return;
+ }
+
+ for (int i = 0; i < simulated_devices_config; ++i)
+ {
+ stop_device(device_list);
+ }
+
+ printf("Cleaning completed!\n");
+}
Code Review / sim / o1-interface.git / blobdiff