--- /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 "docker.h"
+#include "utils/log_utils.h"
+#include "utils/sys_utils.h"
+#include "utils/http_client.h"
+#include "core/framework.h"
+#include "core/session.h"
+#include "core/context.h"
+#include <sysrepo.h>
+#include <dirent.h>
+#include <assert.h>
+#include <sys/sysinfo.h>
+
+#include <cjson/cJSON.h>
+
+#define DOCKER_SOCK_FNAME "/var/run/docker.sock"
+
+static cJSON *docker_network_info = 0;
+
+struct installable_module {
+ char *name;
+ char *fullpath;
+ bool installed;
+ bool submodule;
+};
+
+typedef struct {
+ char *name;
+ char *value;
+} environment_var_t;
+
+static environment_var_t *docker_environment_var;
+static int docker_environment_var_count = 0;
+
+static int get_installable_modules(struct installable_module **modules); //list available modules for install
+static void list_yangs(const char *path, struct installable_module **modules, int *total);
+
+static char *docker_parse_json_message(const char *json_string);
+
+static int docker_container_create(const char *image, manager_network_function_instance_t *instance);
+static int docker_container_start(manager_network_function_instance_t *instance);
+static int docker_container_inspect(manager_network_function_instance_t *instance);
+
+
+bool docker_container_init(void) {
+ int rc;
+
+ sr_log_stderr(SR_LL_NONE);
+ log_message(1, "Entering container-init mode...\n");
+
+ // connect to sysrepo
+ rc = sr_connect(0, &session_connection);
+ if(SR_ERR_OK != rc) {
+ log_error("sr_connect failed");
+ return false;
+ }
+
+ /* get context */
+ session_context = (struct ly_ctx *)sr_get_context(session_connection);
+ if(session_context == 0) {
+ log_error("sr_get_context failed");
+ return false;
+ }
+
+ /* install yang files */
+ log_message(1, "Installing yang files...\n");
+ struct installable_module *modules;
+ int total_modules = get_installable_modules(&modules);
+ log_message(1, "Found total modules: %d\n", total_modules);
+
+ int old_failed_installations = 1;
+ int failed_installations = 0;
+ int install_round = 0;
+ while(failed_installations != old_failed_installations) {
+ old_failed_installations = failed_installations;
+ failed_installations = 0;
+ install_round++;
+ for(int i = 0; i < total_modules; i++) {
+ if(!modules[i].installed) {
+ modules[i].submodule = context_yang_is_module(modules[i].fullpath);
+ if(!modules[i].submodule) {
+ if(!framework_is_docker_excluded_module(modules[i].name)) {
+ log_message(1, "[round %d] trying to install module %s from %s... ", install_round, modules[i].name, modules[i].fullpath);
+ if(!context_module_install(modules[i].name, modules[i].fullpath)) {
+ failed_installations++;
+ log_message(1, LOG_COLOR_BOLD_YELLOW"failed"LOG_COLOR_RESET"\n");
+ }
+ else {
+ log_message(1, LOG_COLOR_BOLD_GREEN"done"LOG_COLOR_RESET"\n");
+ modules[i].installed = true;
+ }
+ }
+ else {
+ log_message(1, "[round %d] not installing module %s as it's excluded in config.\n", install_round, modules[i].name);
+ modules[i].installed = true;
+ }
+ }
+ else {
+ log_message(1, "[round %d] %s is a submodule... "LOG_COLOR_BOLD_YELLOW"skipping"LOG_COLOR_RESET"\n", install_round, modules[i].name);
+ modules[i].installed = true;
+ }
+ }
+ }
+ }
+
+ if(failed_installations != 0) {
+ log_error("Failed to install all modules in %d rounds...", install_round);
+ return false;
+ }
+ else {
+ log_message(1, LOG_COLOR_BOLD_GREEN"successfully"LOG_COLOR_RESET" installed "LOG_COLOR_BOLD_GREEN"ALL"LOG_COLOR_RESET" modules in "LOG_COLOR_BOLD_YELLOW"%d"LOG_COLOR_RESET" rounds\n", (install_round - 1));
+ }
+
+ //set access for all installed modules
+ log_message(1, "Setting access configuration for installed modules... ");
+ for(int i = 0; i < total_modules; i++) {
+ if((!framework_is_docker_excluded_module(modules[i].name)) && (!modules[i].submodule)) {
+ if(!context_module_set_access(modules[i].name)) {
+ log_error("Failed to set access to module %s...", modules[i].name);
+ return false;
+ }
+ }
+ }
+ log_message(1, LOG_COLOR_BOLD_GREEN"done"LOG_COLOR_RESET"\n");
+
+ //cleanup module-install used memory
+ for(int i = 0; i < total_modules; i++) {
+ free(modules[i].name);
+ free(modules[i].fullpath);
+ }
+ free(modules);
+
+ //get context
+ session_context = (struct ly_ctx *)sr_get_context(session_connection);
+ if(session_context == 0) {
+ log_error("sr_get_context failed");
+ return false;
+ }
+
+ //init context so we can see all the available modules, features, etc
+ rc = context_init(session_context);
+ if(rc != 0) {
+ log_error("context_init() failed");
+ return false;
+ }
+
+ /* enable features */
+ log_message(1, "Enabling yang features...\n");
+ char **available_features;
+ int total_available_features;
+ total_available_features = context_get_features(&available_features);
+ log_message(1, "Found total features: %d\n", total_available_features);
+ for(int i = 0; i < total_available_features; i++) {
+ log_message(1, "feature %s: ", available_features[i]);
+
+ if(!context_get_feature_enabled(available_features[i])) {
+ if(!framework_is_docker_excluded_feature(available_features[i])) {
+ if(context_feature_enable(available_features[i])) {
+ log_message(1, "enabling... "LOG_COLOR_BOLD_GREEN"done"LOG_COLOR_RESET"\n");
+ }
+ else {
+ log_error("enabling... failed\n");
+ }
+ }
+ else {
+ log_message(1, "excluded in config, skipping\n");
+ }
+ }
+ else {
+ log_message(1, "already "LOG_COLOR_BOLD_GREEN"enabled"LOG_COLOR_RESET", skipping.\n");
+ }
+ }
+ for(int i = 0; i < total_available_features; i++) {
+ free(available_features[i]);
+ }
+ free(available_features);
+
+ sr_disconnect(session_connection);
+ context_free();
+
+ log_message(1, LOG_COLOR_BOLD_GREEN"ntsim successfully initialized Docker container"LOG_COLOR_RESET"\n");
+ return true;
+}
+
+static int get_installable_modules(struct installable_module **modules) {
+ int total = 0;
+ *modules = 0;
+ list_yangs("/opt/dev/deploy/yang", modules, &total);
+ return total;
+}
+
+static void list_yangs(const char *path, struct installable_module **modules, int *total) {
+ DIR *d;
+ struct dirent *dir;
+ d = opendir(path);
+ if(d) {
+ while((dir = readdir(d)) != NULL) {
+ if(dir->d_type == DT_DIR) {
+ if(strcmp(dir->d_name, ".") != 0 && strcmp(dir->d_name, "..") != 0)
+ {
+ char new_path[1024];
+ snprintf(new_path, sizeof(new_path), "%s/%s", path, dir->d_name);
+ list_yangs(new_path, modules, total);
+ }
+ } else {
+ if(strstr(dir->d_name, ".yang") != 0) {
+ *modules = (struct installable_module *)realloc(*modules, sizeof(struct installable_module) * (*total + 1));
+ if(!*modules) {
+ log_error("could not realloc");
+ return;
+ }
+
+ (*modules)[*total].name = (char*)malloc(sizeof(char) * (strlen(dir->d_name) + 1));
+ if(!(*modules)[*total].name) {
+ log_error("could not alloc");
+ return;
+ }
+ strcpy((*modules)[*total].name, dir->d_name);
+ (*modules)[*total].name[strlen(dir->d_name) - 5] = 0; //extract ".yang"
+ char *rev = strstr((*modules)[*total].name, "@");
+ if(rev) { //extract revision, if exists
+ *rev = 0;
+ }
+
+ (*modules)[*total].fullpath = (char*)malloc(sizeof(char) * (strlen(path) + 1 + strlen(dir->d_name) + 1));
+ if(!(*modules)[*total].fullpath) {
+ log_error("could not alloc");
+ return;
+ }
+ sprintf((*modules)[*total].fullpath, "%s/%s", path, dir->d_name);
+
+ (*modules)[*total].installed = false;
+ (*modules)[*total].submodule = false;
+
+ (*total)++;
+ }
+ }
+ }
+ closedir(d);
+ }
+}
+
+int docker_device_init(void) {
+ char *response = 0;
+ char *url = 0;
+ asprintf(&url, "http://v%s/containers/%s/json", framework_environment.docker_engine_version, framework_environment.hostname);
+
+ int rc = http_socket_request(url, DOCKER_SOCK_FNAME, "GET", 0, 0, &response);
+ if(rc != NTS_ERR_OK) {
+ log_error("http_socket_request failed");
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON *json_response = cJSON_Parse(response);
+ free(response);
+
+ if(json_response == 0) {
+ log_error("could not parse JSON response for url=\"%s\"", url);
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON *hostConfig = cJSON_GetObjectItemCaseSensitive(json_response, "HostConfig");
+ if(hostConfig == 0) {
+ log_error("could not get HostConfig object");
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON *networkMode = cJSON_GetObjectItemCaseSensitive(hostConfig, "NetworkMode");
+ if(networkMode == 0) {
+ log_error("could not get NetworkMode object");
+ return NTS_ERR_FAILED;
+ }
+
+ docker_network_info = cJSON_Duplicate(networkMode, 1);
+ cJSON_Delete(json_response);
+
+ log_message(2, "finished parsing docker inspect...\n");
+
+
+ docker_environment_var_count = 5;
+ docker_environment_var = (environment_var_t *)malloc(sizeof(environment_var_t) * docker_environment_var_count);
+ if(docker_environment_var == 0) {
+ log_error("malloc failed");
+ return NTS_ERR_FAILED;
+ }
+
+ //set env variables for network functions
+ docker_environment_var[0].name = ENV_VAR_SSH_CONNECTIONS;
+ asprintf(&docker_environment_var[0].value, "%d", framework_environment.ssh_connections);
+ docker_environment_var[1].name = ENV_VAR_TLS_CONNECTIONS;
+ asprintf(&docker_environment_var[1].value, "%d", framework_environment.tls_connections);
+ docker_environment_var[2].name = ENV_VAR_IPV6ENABLED;
+ docker_environment_var[2].value = framework_environment.ip_v6_enabled ? "true" : "false";
+ docker_environment_var[3].name = ENV_VAR_HOST_IP;
+ docker_environment_var[3].value = framework_environment.host_ip;
+ docker_environment_var[4].name = ENV_VAR_HOST_BASE_PORT;
+ // docker_environment_var[4].value = will be updated by docker_create...
+
+ return NTS_ERR_OK;
+}
+
+int docker_device_start(const manager_network_function_type *function_type, manager_network_function_instance_t *instance) {
+ assert(function_type);
+ assert(instance);
+ assert(docker_network_info);
+
+ char *image = 0;
+ if(function_type->docker_version_tag && (function_type->docker_version_tag[0] != 0)) {
+ if(function_type->docker_repository && (function_type->docker_repository[0] != 0)) {
+ asprintf(&image, "%s/%s:%s", function_type->docker_repository, function_type->docker_image_name, function_type->docker_version_tag);
+ }
+ else {
+ asprintf(&image, "%s:%s", function_type->docker_image_name, function_type->docker_version_tag);
+ }
+ }
+ else {
+ if(function_type->docker_repository && (function_type->docker_repository[0] != 0)) {
+ asprintf(&image, "%s/%s:latest", function_type->docker_repository, function_type->docker_image_name);
+ }
+ else {
+ asprintf(&image, "%s:latest", function_type->docker_image_name);
+ }
+ }
+
+ int rc = docker_container_create(image, instance);
+ if(rc != NTS_ERR_OK) {
+ log_error("docker_container_create failed");
+ return NTS_ERR_FAILED;
+ }
+ free(image);
+
+ rc = docker_container_start(instance);
+ if(rc != NTS_ERR_OK) {
+ log_error("docker_container_start failed");
+ return NTS_ERR_FAILED;
+ }
+
+ rc = docker_container_inspect(instance);
+ if(rc != NTS_ERR_OK) {
+ log_error("docker_container_inspect failed");
+ return NTS_ERR_FAILED;
+ }
+
+ log_message(2, "docker_device_start: docker_id: %s | name: %s | docker_ip: %s | host_port: %d\n", instance->docker_id, instance->name, instance->docker_ip, instance->host_port);
+
+ return NTS_ERR_OK;
+}
+
+int docker_device_stop(manager_network_function_instance_t *instance) {
+ assert(instance);
+
+ char *url = 0;
+ asprintf(&url, "http://v%s/containers/%s?force=true", framework_environment.docker_engine_version, instance->docker_id);
+
+ int rc = http_socket_request(url, DOCKER_SOCK_FNAME, "DELETE", "", 0, 0);
+ free(url);
+ if(rc != NTS_ERR_OK) {
+ log_error("http_socket_request failed");
+ return NTS_ERR_FAILED;
+ }
+
+ return NTS_ERR_OK;
+}
+
+docker_usage_t docker_usage_get(const manager_network_function_type *function_type, int function_type_count) {
+ docker_usage_t ret;
+ ret.cpu = 0;
+ ret.mem = 0;
+
+ char buffer[1024];
+ char full_text[1024 * 1024];
+ FILE* pipe = popen("docker stats --no-stream --format \"table {{.ID}}|{{.CPUPerc}}|{{.MemUsage}}|\"", "r");
+ if (!pipe) {
+ log_error("popen() failed");
+ return ret;
+ }
+
+ int n = 1;
+ int k = 0;
+ while(n != 0) {
+ n = fread(buffer, 1, sizeof(buffer), pipe);
+ for(int i = 0; i < n; i++) {
+ full_text[k++] = buffer[i];
+ }
+ }
+ pclose(pipe);
+ full_text[k] = 0;
+
+ char *c = full_text;
+
+ c = strstr(c, "\n");
+ while(c) {
+ char line[1024];
+ line[0] = 0;
+
+ char *d = strstr(c + 1, "\n");
+ if(d) {
+ for(char *i = c + 1; i < d; i++) {
+ line[i - c - 1] = *i;
+ line[i - c] = 0;
+ }
+
+ char container_name[1024];
+ char buff[1024];
+ float cpu = 0.0;
+ float mem = 0.0;
+
+ char *x = strstr(line, "|");
+ for(char *i = line; i < x; i++) {
+ container_name[i - line] = *i;
+ container_name[i - line + 1] = 0;
+ }
+
+ char *start = x + 1;
+ x = strstr(start, "|");
+ for(char *i = start; i < x; i++) {
+ if(((*i >= '0') && (*i <= '9')) || (*i == '.')) {
+ buff[i - start] = *i;
+ }
+ else {
+ buff[i - start] = 0;
+ break;
+ }
+ }
+
+ cpu = strtof(buff, 0);
+
+ int mul = 1;
+ start = x + 1;
+ x = strstr(start, "|");
+ for(char *i = start; i < x; i++) {
+ if(((*i >= '0') && (*i <= '9')) || (*i == '.')) {
+ buff[i - start] = *i;
+ }
+ else {
+ if(*i == 'G') {
+ mul = 1024;
+ }
+ buff[i - start] = 0;
+ break;
+ }
+ }
+
+ mem = strtof(buff, 0) * mul;
+
+
+ if(strcmp(container_name, framework_environment.hostname) == 0) {
+ ret.cpu += cpu;
+ ret.mem += mem;
+ }
+ else {
+ for(int i = 0; i < function_type_count; i++) {
+ for(int j = 0; j < function_type[i].started_instances; j++) {
+
+ if(strcmp(container_name, function_type[i].instance[j].docker_id) == 0) {
+ ret.cpu += cpu;
+ ret.mem += mem;
+ break;
+ }
+ }
+ }
+ }
+ }
+
+ c = d;
+ }
+
+
+ ret.cpu /= get_nprocs();
+
+ return ret;
+}
+
+static char *docker_parse_json_message(const char *json_string) {
+ assert(json_string);
+
+ cJSON *json_response = cJSON_Parse(json_string);
+ if(json_response == 0) {
+ log_error("cJSON_Parse failed");
+ return 0;
+ }
+
+ cJSON *message;
+ message = cJSON_GetObjectItem(json_response, "message");
+ if(message == 0) {
+ log_error("json parsing failed");
+ return 0;
+ }
+
+ char *ret = strdup(message->valuestring);
+ cJSON_Delete(json_response);
+ return ret;
+}
+
+static int docker_container_create(const char *image, manager_network_function_instance_t *instance) {
+ assert(image);
+ assert(instance);
+
+ cJSON *postDataJson = cJSON_CreateObject();
+ if(cJSON_AddStringToObject(postDataJson, "Image", image) == 0) {
+ log_error("could not create JSON object: Image");
+ return NTS_ERR_FAILED;
+ }
+
+ if(cJSON_AddStringToObject(postDataJson, "Hostname", instance->name) == 0) {
+ log_error("could not create JSON object: Hostname");
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON *hostConfig = cJSON_CreateObject();
+ if(hostConfig == 0) {
+ log_error("could not create JSON object: HostConfig");
+ return NTS_ERR_FAILED;
+ }
+ cJSON_AddItemToObject(postDataJson, "HostConfig", hostConfig);
+
+ cJSON *portBindings = cJSON_CreateObject();
+ if(portBindings == 0) {
+ printf("could not create JSON object: PortBindings");
+ return NTS_ERR_FAILED;
+ }
+ cJSON_AddItemToObject(hostConfig, "PortBindings", portBindings);
+
+ for(int i = 0; i < (framework_environment.ssh_connections + framework_environment.tls_connections + framework_environment.ftp_connections + framework_environment.sftp_connections); ++i) {
+ cJSON *port = cJSON_CreateArray();
+ if(port == 0) {
+ log_error("could not create JSON object: port");
+ return NTS_ERR_FAILED;
+ }
+
+ char dockerContainerPort[20];
+ if(i < framework_environment.ssh_connections + framework_environment.tls_connections) {
+ sprintf(dockerContainerPort, "%d/tcp", STANDARD_NETCONF_PORT + i);
+ }
+ else if(i < (framework_environment.ssh_connections + framework_environment.tls_connections + framework_environment.ftp_connections)) {
+ sprintf(dockerContainerPort, "%d/tcp", STANDARD_FTP_PORT);
+ }
+ else if(i < (framework_environment.ssh_connections + framework_environment.tls_connections + framework_environment.ftp_connections + framework_environment.sftp_connections)) {
+ sprintf(dockerContainerPort, "%d/tcp", STANDARD_SFTP_PORT);
+ }
+ cJSON_AddItemToObject(portBindings, dockerContainerPort, port);
+
+ cJSON *hostPort = cJSON_CreateObject();
+ if(hostPort == 0) {
+ log_error("could not create JSON object: HostPort");
+ return NTS_ERR_FAILED;
+ }
+
+ char dockerHostPort[20];
+ sprintf(dockerHostPort, "%d", instance->host_port + i);
+ if(cJSON_AddStringToObject(hostPort, "HostPort", dockerHostPort) == 0) {
+ log_error("could not create JSON object: HostPortString");
+ return NTS_ERR_FAILED;
+ }
+
+ if(cJSON_AddStringToObject(hostPort, "HostIp", "0.0.0.0") == 0) { //instance->host_ip
+ log_error("could not create JSON object: HostIpString");
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON_AddItemToArray(port, hostPort);
+ }
+
+
+ //environment vars start
+ asprintf(&docker_environment_var[4].value, "%d", instance->host_port);
+
+ cJSON *env_variables_array = cJSON_CreateArray();
+ if (env_variables_array == 0) {
+ log_error("Could not create JSON object: Env array");
+ return NTS_ERR_FAILED;
+ }
+ cJSON_AddItemToObject(postDataJson, "Env", env_variables_array);
+
+ for(int i = 0; i < docker_environment_var_count; i++) {
+ char *environment_var = 0;
+ asprintf(&environment_var, "%s=%s", docker_environment_var[i].name, docker_environment_var[i].value);
+
+ cJSON *env_var_obj = cJSON_CreateString(environment_var);
+ if(env_var_obj == 0) {
+ log_error("could not create JSON object");
+ return NTS_ERR_FAILED;
+ }
+ cJSON_AddItemToArray(env_variables_array, env_var_obj);
+
+ free(environment_var);
+ }
+
+ free(docker_environment_var[4].value);
+ //environment vars finished
+
+
+ cJSON *netMode = cJSON_Duplicate(docker_network_info, 1);
+ cJSON_AddItemToObject(hostConfig, "NetworkMode", netMode);
+
+ char *post_data_string = 0;
+ post_data_string = cJSON_PrintUnformatted(postDataJson);
+ cJSON_Delete(postDataJson);
+
+ char *url = 0;
+ asprintf(&url, "http:/v%s/containers/create?name=%s", framework_environment.docker_engine_version, instance->name);
+
+ char *response = 0;
+ int response_code = 0;
+ int rc = http_socket_request(url, DOCKER_SOCK_FNAME, "POST", post_data_string, &response_code, &response);
+ if(rc != NTS_ERR_OK) {
+ log_error("http_socket_request failed");
+ return NTS_ERR_FAILED;
+ }
+ free(url);
+
+ if(response_code != 201) {
+ char *message = docker_parse_json_message(response);
+ log_error("docker_container_create failed (%d): %s", response_code, message);
+ free(message);
+ free(response);
+ return NTS_ERR_FAILED;
+ }
+ else {
+ cJSON *json_response = cJSON_Parse(response);
+ free(response);
+ const cJSON *container_id = 0;
+
+ container_id = cJSON_GetObjectItemCaseSensitive(json_response, "Id");
+
+ if(cJSON_IsString(container_id) && (container_id->valuestring != 0)) {
+ char container_id_short[13];
+ memset(container_id_short, '\0', sizeof(container_id_short));
+ strncpy(container_id_short, container_id->valuestring, 12);
+
+ instance->docker_id = strdup(container_id_short);
+
+ cJSON_Delete(json_response);
+ return NTS_ERR_OK;
+ }
+ else {
+ cJSON_Delete(json_response);
+ return NTS_ERR_FAILED;
+ }
+ }
+}
+
+static int docker_container_start(manager_network_function_instance_t *instance) {
+ assert(instance);
+
+ char *url = 0;
+ asprintf(&url, "http://v%s/containers/%s/start", framework_environment.docker_engine_version, instance->docker_id);
+
+ char *response = 0;
+ int response_code = 0;
+ int rc = http_socket_request(url, DOCKER_SOCK_FNAME, "POST", "", &response_code, &response);
+ free(url);
+ if(rc != NTS_ERR_OK) {
+ log_error("http_socket_request failed");
+ return NTS_ERR_FAILED;
+ }
+ else {
+ if(response_code == 304) {
+ log_error("docker_container_start failed (%d): container already started\n", response_code);
+ free(response);
+ return NTS_ERR_FAILED;
+ }
+ else if(response_code != 204) {
+ char *message = docker_parse_json_message(response);
+ log_error("docker_container_start failed (%d): %s", response_code, message);
+ free(message);
+ free(response);
+ return NTS_ERR_FAILED;
+ }
+
+ }
+
+ return NTS_ERR_OK;
+}
+
+static int docker_container_inspect(manager_network_function_instance_t *instance) {
+ assert(instance);
+
+ char *url = 0;
+ asprintf(&url, "http://v%s/containers/%s/json", framework_environment.docker_engine_version, instance->docker_id);
+
+ char *response = 0;
+ int rc = http_socket_request(url, DOCKER_SOCK_FNAME, "GET", "", 0, &response);
+ free(url);
+ if(rc != NTS_ERR_OK) {
+ log_error("http_socket_request failed");
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON *json_response = cJSON_Parse(response);
+ free(response);
+ if(json_response == 0) {
+ log_error("cJSON_Parse failed");
+ return NTS_ERR_FAILED;
+ }
+
+
+ cJSON *main_node = cJSON_GetObjectItem(json_response, "NetworkSettings");
+ if(main_node == 0) {
+ log_error("json parsing failed");
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON *node = cJSON_GetObjectItem(main_node, "Networks");
+ if(node == 0) {
+ log_error("json parsing failed");
+ return NTS_ERR_FAILED;
+ }
+
+ node = node->child; //get info from the first in array
+ if(node == 0) {
+ log_error("json parsing failed");
+ return NTS_ERR_FAILED;
+ }
+
+ char *ipv6_env_var = getenv("IPv6_ENABLED");
+ if(ipv6_env_var == 0) {
+ log_error("could not get the IPv6 Enabled env variable");
+ return NTS_ERR_FAILED;
+ }
+
+ cJSON *element = cJSON_GetObjectItem(node, "IPAddress");
+ if(strcmp(ipv6_env_var, "true") == 0) {
+ element = cJSON_GetObjectItem(node, "GlobalIPv6Address");
+ }
+ else {
+ element = cJSON_GetObjectItem(node, "IPAddress");
+ }
+
+ if(element == 0) {
+ log_error("json parsing failed");
+ return NTS_ERR_FAILED;
+ }
+ instance->docker_ip = strdup(element->valuestring);
+
+ cJSON_Delete(json_response);
+ return NTS_ERR_OK;
+}
Code Review / sim / o1-interface.git / blobdiff