numam-dpdk/lib/librte_telemetry/rte_telemetry.c
Flavia Musatescu 5c0bdc3203 telemetry: fix build with gcc 9
Suppress the unaligned packed member address warnings by extending
the telemetry library build flags with -Wno-address-of-packed-member
option, through the WERROR_FLAGS makefile variable.

With this change additional warnings are turned on to be treated as errors,
which causes the following build issues to be seen:
- no previous prototype [-Werror=missing-prototypes]
- initialization discards ‘const’ qualifier from pointer target type
  [-Werror=discarded-qualifiers]
- old-style function definition [-Werror=old-style-definition]
- variable may be used before its value is set (when using icc compiler).

Fixes: 0fe3a37924d4 ("telemetry: format json response when sending stats")
Fixes: ee5ff0d3297e ("telemetry: add client feature and sockets")
Fixes: 8877ac688b52 ("telemetry: introduce infrastructure")
Fixes: 1b756087db93 ("telemetry: add parser for client socket messages")
Fixes: fff6df7bf58e ("telemetry: fix using ports of different types")
Fixes: 4080e46c8078 ("telemetry: support global metrics")
Cc: stable@dpdk.org

Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Signed-off-by: Flavia Musatescu <flavia.musatescu@intel.com>
Acked-by: Kevin Laatz <kevin.laatz@intel.com>
2019-07-04 18:48:04 +02:00

1896 lines
44 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2018 Intel Corporation
*/
#include <unistd.h>
#include <fcntl.h>
#include <pthread.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <jansson.h>
#include <rte_eal.h>
#include <rte_ethdev.h>
#include <rte_metrics.h>
#include <rte_option.h>
#include <rte_string_fns.h>
#include "rte_telemetry.h"
#include "rte_telemetry_internal.h"
#include "rte_telemetry_parser.h"
#include "rte_telemetry_socket_tests.h"
#define BUF_SIZE 1024
#define ACTION_POST 1
#define SLEEP_TIME 10
#define SELFTEST_VALID_CLIENT "/var/run/dpdk/valid_client"
#define SELFTEST_INVALID_CLIENT "/var/run/dpdk/invalid_client"
#define SOCKET_TEST_CLIENT_PATH "/var/run/dpdk/client"
static telemetry_impl *static_telemetry;
struct telemetry_message_test {
const char *test_name;
int (*test_func_ptr)(struct telemetry_impl *telemetry, int fd);
};
struct json_data {
char *status_code;
const char *data;
int port;
char *stat_name;
int stat_value;
};
static void
rte_telemetry_get_runtime_dir(char *socket_path, size_t size)
{
snprintf(socket_path, size, "%s/telemetry", rte_eal_get_runtime_dir());
}
int32_t
rte_telemetry_is_port_active(int port_id)
{
int ret;
ret = rte_eth_find_next(port_id);
if (ret == port_id)
return 1;
TELEMETRY_LOG_ERR("port_id: %d is invalid, not active",
port_id);
return 0;
}
static int32_t
rte_telemetry_update_metrics_ethdev(struct telemetry_impl *telemetry,
uint16_t port_id, int reg_start_index)
{
int ret, num_xstats, i;
struct rte_eth_xstat *eth_xstats;
if (!rte_eth_dev_is_valid_port(port_id)) {
TELEMETRY_LOG_ERR("port_id: %d is invalid", port_id);
ret = rte_telemetry_send_error_response(telemetry, -EINVAL);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
ret = rte_telemetry_is_port_active(port_id);
if (ret < 1) {
ret = rte_telemetry_send_error_response(telemetry, -EINVAL);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
num_xstats = rte_eth_xstats_get(port_id, NULL, 0);
if (num_xstats < 0) {
TELEMETRY_LOG_ERR("rte_eth_xstats_get(%u) failed: %d", port_id,
num_xstats);
ret = rte_telemetry_send_error_response(telemetry, -EPERM);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
eth_xstats = malloc(sizeof(struct rte_eth_xstat) * num_xstats);
if (eth_xstats == NULL) {
TELEMETRY_LOG_ERR("Failed to malloc memory for xstats");
ret = rte_telemetry_send_error_response(telemetry, -ENOMEM);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
ret = rte_eth_xstats_get(port_id, eth_xstats, num_xstats);
if (ret < 0 || ret > num_xstats) {
free(eth_xstats);
TELEMETRY_LOG_ERR("rte_eth_xstats_get(%u) len%i failed: %d",
port_id, num_xstats, ret);
ret = rte_telemetry_send_error_response(telemetry, -EPERM);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
uint64_t xstats_values[num_xstats];
for (i = 0; i < num_xstats; i++)
xstats_values[i] = eth_xstats[i].value;
ret = rte_metrics_update_values(port_id, reg_start_index, xstats_values,
num_xstats);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not update metrics values");
ret = rte_telemetry_send_error_response(telemetry, -EPERM);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
free(eth_xstats);
return -1;
}
free(eth_xstats);
return 0;
}
static int32_t
rte_telemetry_write_to_socket(struct telemetry_impl *telemetry,
const char *json_string)
{
int ret;
if (telemetry == NULL) {
TELEMETRY_LOG_ERR("Could not initialise TELEMETRY_API");
return -1;
}
if (telemetry->request_client == NULL) {
TELEMETRY_LOG_ERR("No client has been chosen to write to");
return -1;
}
if (json_string == NULL) {
TELEMETRY_LOG_ERR("Invalid JSON string!");
return -1;
}
ret = send(telemetry->request_client->fd,
json_string, strlen(json_string), 0);
if (ret < 0) {
TELEMETRY_LOG_ERR("Failed to write to socket for client: %s",
telemetry->request_client->file_path);
return -1;
}
return 0;
}
int32_t
rte_telemetry_send_error_response(struct telemetry_impl *telemetry,
int error_type)
{
int ret;
const char *status_code, *json_buffer;
json_t *root;
if (error_type == -EPERM)
status_code = "Status Error: Unknown";
else if (error_type == -EINVAL)
status_code = "Status Error: Invalid Argument 404";
else if (error_type == -ENOMEM)
status_code = "Status Error: Memory Allocation Error";
else {
TELEMETRY_LOG_ERR("Invalid error type");
return -EINVAL;
}
root = json_object();
if (root == NULL) {
TELEMETRY_LOG_ERR("Could not create root JSON object");
return -EPERM;
}
ret = json_object_set_new(root, "status_code", json_string(status_code));
if (ret < 0) {
TELEMETRY_LOG_ERR("Status code field cannot be set");
json_decref(root);
return -EPERM;
}
ret = json_object_set_new(root, "data", json_null());
if (ret < 0) {
TELEMETRY_LOG_ERR("Data field cannot be set");
json_decref(root);
return -EPERM;
}
json_buffer = json_dumps(root, 0);
json_decref(root);
ret = rte_telemetry_write_to_socket(telemetry, json_buffer);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not write to socket");
return -EPERM;
}
return 0;
}
static int
rte_telemetry_get_metrics(struct telemetry_impl *telemetry, uint32_t port_id,
struct rte_metric_value *metrics, struct rte_metric_name *names,
int num_metrics)
{
int ret, num_values;
if (num_metrics < 0) {
TELEMETRY_LOG_ERR("Invalid metrics count");
goto einval_fail;
} else if (num_metrics == 0) {
TELEMETRY_LOG_ERR("No metrics to display (none have been registered)");
goto eperm_fail;
}
if (metrics == NULL) {
TELEMETRY_LOG_ERR("Metrics must be initialised.");
goto einval_fail;
}
if (names == NULL) {
TELEMETRY_LOG_ERR("Names must be initialised.");
goto einval_fail;
}
ret = rte_metrics_get_names(names, num_metrics);
if (ret < 0 || ret > num_metrics) {
TELEMETRY_LOG_ERR("Cannot get metrics names");
goto eperm_fail;
}
num_values = rte_metrics_get_values(port_id, NULL, 0);
ret = rte_metrics_get_values(port_id, metrics, num_values);
if (ret < 0 || ret > num_values) {
TELEMETRY_LOG_ERR("Cannot get metrics values");
goto eperm_fail;
}
return 0;
eperm_fail:
ret = rte_telemetry_send_error_response(telemetry, -EPERM);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
einval_fail:
ret = rte_telemetry_send_error_response(telemetry, -EINVAL);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
static int32_t
rte_telemetry_json_format_stat(struct telemetry_impl *telemetry, json_t *stats,
const char *metric_name, uint64_t metric_value)
{
int ret;
json_t *stat = json_object();
if (stat == NULL) {
TELEMETRY_LOG_ERR("Could not create stat JSON object");
goto eperm_fail;
}
ret = json_object_set_new(stat, "name", json_string(metric_name));
if (ret < 0) {
TELEMETRY_LOG_ERR("Stat Name field cannot be set");
goto eperm_fail;
}
ret = json_object_set_new(stat, "value", json_integer(metric_value));
if (ret < 0) {
TELEMETRY_LOG_ERR("Stat Value field cannot be set");
goto eperm_fail;
}
ret = json_array_append_new(stats, stat);
if (ret < 0) {
TELEMETRY_LOG_ERR("Stat cannot be added to stats json array");
goto eperm_fail;
}
return 0;
eperm_fail:
ret = rte_telemetry_send_error_response(telemetry, -EPERM);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
static int32_t
rte_telemetry_json_format_port(struct telemetry_impl *telemetry,
uint32_t port_id, json_t *ports, uint32_t *metric_ids,
int num_metric_ids)
{
struct rte_metric_value *metrics = 0;
struct rte_metric_name *names = 0;
int num_metrics, ret, err_ret;
json_t *port, *stats;
int i;
num_metrics = rte_metrics_get_names(NULL, 0);
if (num_metrics < 0) {
TELEMETRY_LOG_ERR("Cannot get metrics count");
goto einval_fail;
} else if (num_metrics == 0) {
TELEMETRY_LOG_ERR("No metrics to display (none have been registered)");
goto eperm_fail;
}
metrics = malloc(sizeof(struct rte_metric_value) * num_metrics);
names = malloc(sizeof(struct rte_metric_name) * num_metrics);
if (metrics == NULL || names == NULL) {
TELEMETRY_LOG_ERR("Cannot allocate memory");
free(metrics);
free(names);
err_ret = rte_telemetry_send_error_response(telemetry, -ENOMEM);
if (err_ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
ret = rte_telemetry_get_metrics(telemetry, port_id, metrics, names,
num_metrics);
if (ret < 0) {
free(metrics);
free(names);
TELEMETRY_LOG_ERR("rte_telemetry_get_metrics failed");
return -1;
}
port = json_object();
stats = json_array();
if (port == NULL || stats == NULL) {
TELEMETRY_LOG_ERR("Could not create port/stats JSON objects");
goto eperm_fail;
}
ret = json_object_set_new(port, "port", json_integer(port_id));
if (ret < 0) {
TELEMETRY_LOG_ERR("Port field cannot be set");
goto eperm_fail;
}
for (i = 0; i < num_metric_ids; i++) {
int metric_id = metric_ids[i];
int metric_index = -1;
int metric_name_key = -1;
int32_t j;
uint64_t metric_value;
if (metric_id >= num_metrics) {
TELEMETRY_LOG_ERR("Metric_id: %d is not valid",
metric_id);
goto einval_fail;
}
for (j = 0; j < num_metrics; j++) {
if (metrics[j].key == metric_id) {
metric_name_key = metrics[j].key;
metric_index = j;
break;
}
}
const char *metric_name = names[metric_name_key].name;
metric_value = metrics[metric_index].value;
if (metric_name_key < 0 || metric_index < 0) {
TELEMETRY_LOG_ERR("Could not get metric name/index");
goto eperm_fail;
}
ret = rte_telemetry_json_format_stat(telemetry, stats,
metric_name, metric_value);
if (ret < 0) {
TELEMETRY_LOG_ERR("Format stat with id: %u failed",
metric_id);
free(metrics);
free(names);
return -1;
}
}
if (json_array_size(stats) == 0)
ret = json_object_set_new(port, "stats", json_null());
else
ret = json_object_set_new(port, "stats", stats);
if (ret < 0) {
TELEMETRY_LOG_ERR("Stats object cannot be set");
goto eperm_fail;
}
ret = json_array_append_new(ports, port);
if (ret < 0) {
TELEMETRY_LOG_ERR("Port object cannot be added to ports array");
goto eperm_fail;
}
free(metrics);
free(names);
return 0;
eperm_fail:
free(metrics);
free(names);
ret = rte_telemetry_send_error_response(telemetry, -EPERM);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
einval_fail:
free(metrics);
free(names);
ret = rte_telemetry_send_error_response(telemetry, -EINVAL);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
static int32_t
rte_telemetry_encode_json_format(struct telemetry_impl *telemetry,
struct telemetry_encode_param *ep, char **json_buffer)
{
int ret;
json_t *root, *ports;
int i;
uint32_t port_id;
int num_port_ids;
int num_metric_ids;
ports = json_array();
if (ports == NULL) {
TELEMETRY_LOG_ERR("Could not create ports JSON array");
goto eperm_fail;
}
if (ep->type == PORT_STATS) {
num_port_ids = ep->pp.num_port_ids;
num_metric_ids = ep->pp.num_metric_ids;
if (num_port_ids <= 0 || num_metric_ids <= 0) {
TELEMETRY_LOG_ERR("Please provide port and metric ids to query");
goto einval_fail;
}
for (i = 0; i < num_port_ids; i++) {
port_id = ep->pp.port_ids[i];
if (!rte_eth_dev_is_valid_port(port_id)) {
TELEMETRY_LOG_ERR("Port: %d invalid",
port_id);
goto einval_fail;
}
}
for (i = 0; i < num_port_ids; i++) {
port_id = ep->pp.port_ids[i];
ret = rte_telemetry_json_format_port(telemetry,
port_id, ports, &ep->pp.metric_ids[0],
num_metric_ids);
if (ret < 0) {
TELEMETRY_LOG_ERR("Format port in JSON failed");
return -1;
}
}
} else if (ep->type == GLOBAL_STATS) {
/* Request Global Metrics */
ret = rte_telemetry_json_format_port(telemetry,
RTE_METRICS_GLOBAL,
ports, &ep->gp.metric_ids[0],
ep->gp.num_metric_ids);
if (ret < 0) {
TELEMETRY_LOG_ERR(" Request Global Metrics Failed");
return -1;
}
} else {
TELEMETRY_LOG_ERR(" Invalid metrics type in encode params");
goto einval_fail;
}
root = json_object();
if (root == NULL) {
TELEMETRY_LOG_ERR("Could not create root JSON object");
goto eperm_fail;
}
ret = json_object_set_new(root, "status_code",
json_string("Status OK: 200"));
if (ret < 0) {
TELEMETRY_LOG_ERR("Status code field cannot be set");
goto eperm_fail;
}
ret = json_object_set_new(root, "data", ports);
if (ret < 0) {
TELEMETRY_LOG_ERR("Data field cannot be set");
goto eperm_fail;
}
*json_buffer = json_dumps(root, JSON_INDENT(2));
json_decref(root);
return 0;
eperm_fail:
ret = rte_telemetry_send_error_response(telemetry, -EPERM);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
einval_fail:
ret = rte_telemetry_send_error_response(telemetry, -EINVAL);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
int32_t
rte_telemetry_send_global_stats_values(struct telemetry_encode_param *ep,
struct telemetry_impl *telemetry)
{
int ret;
char *json_buffer = NULL;
if (telemetry == NULL) {
TELEMETRY_LOG_ERR("Invalid telemetry argument");
return -1;
}
if (ep->gp.num_metric_ids < 0) {
TELEMETRY_LOG_ERR("Invalid num_metric_ids, must be positive");
goto einval_fail;
}
ret = rte_telemetry_encode_json_format(telemetry, ep,
&json_buffer);
if (ret < 0) {
TELEMETRY_LOG_ERR("JSON encode function failed");
return -1;
}
ret = rte_telemetry_write_to_socket(telemetry, json_buffer);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not write to socket");
return -1;
}
return 0;
einval_fail:
ret = rte_telemetry_send_error_response(telemetry, -EINVAL);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
int32_t
rte_telemetry_send_ports_stats_values(struct telemetry_encode_param *ep,
struct telemetry_impl *telemetry)
{
int ret;
char *json_buffer = NULL;
uint32_t port_id;
int i;
if (telemetry == NULL) {
TELEMETRY_LOG_ERR("Invalid telemetry argument");
return -1;
}
if (ep == NULL) {
TELEMETRY_LOG_ERR("Invalid encode param argument");
goto einval_fail;
}
if (ep->pp.num_metric_ids < 0) {
TELEMETRY_LOG_ERR("Invalid num_metric_ids, must be positive");
goto einval_fail;
}
if (ep->pp.num_port_ids < 0) {
TELEMETRY_LOG_ERR("Invalid num_port_ids, must be positive");
goto einval_fail;
}
for (i = 0; i < ep->pp.num_port_ids; i++) {
port_id = ep->pp.port_ids[i];
if (!rte_eth_dev_is_valid_port(port_id)) {
TELEMETRY_LOG_ERR("Port: %d invalid", port_id);
goto einval_fail;
}
ret = rte_telemetry_update_metrics_ethdev(telemetry,
port_id, telemetry->reg_index[i]);
if (ret < 0) {
TELEMETRY_LOG_ERR("Failed to update ethdev metrics");
return -1;
}
}
ret = rte_telemetry_encode_json_format(telemetry, ep, &json_buffer);
if (ret < 0) {
TELEMETRY_LOG_ERR("JSON encode function failed");
return -1;
}
ret = rte_telemetry_write_to_socket(telemetry, json_buffer);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not write to socket");
return -1;
}
return 0;
einval_fail:
ret = rte_telemetry_send_error_response(telemetry, -EINVAL);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -1;
}
static int32_t
rte_telemetry_reg_ethdev_to_metrics(uint16_t port_id)
{
int ret, num_xstats, ret_val, i;
struct rte_eth_xstat *eth_xstats = NULL;
struct rte_eth_xstat_name *eth_xstats_names = NULL;
if (!rte_eth_dev_is_valid_port(port_id)) {
TELEMETRY_LOG_ERR("port_id: %d is invalid", port_id);
return -EINVAL;
}
num_xstats = rte_eth_xstats_get(port_id, NULL, 0);
if (num_xstats < 0) {
TELEMETRY_LOG_ERR("rte_eth_xstats_get(%u) failed: %d",
port_id, num_xstats);
return -EPERM;
}
eth_xstats = malloc(sizeof(struct rte_eth_xstat) * num_xstats);
if (eth_xstats == NULL) {
TELEMETRY_LOG_ERR("Failed to malloc memory for xstats");
return -ENOMEM;
}
ret = rte_eth_xstats_get(port_id, eth_xstats, num_xstats);
const char *xstats_names[num_xstats];
eth_xstats_names = malloc(sizeof(struct rte_eth_xstat_name) * num_xstats);
if (ret < 0 || ret > num_xstats) {
TELEMETRY_LOG_ERR("rte_eth_xstats_get(%u) len%i failed: %d",
port_id, num_xstats, ret);
ret_val = -EPERM;
goto free_xstats;
}
if (eth_xstats_names == NULL) {
TELEMETRY_LOG_ERR("Failed to malloc memory for xstats_names");
ret_val = -ENOMEM;
goto free_xstats;
}
ret = rte_eth_xstats_get_names(port_id, eth_xstats_names, num_xstats);
if (ret < 0 || ret > num_xstats) {
TELEMETRY_LOG_ERR("rte_eth_xstats_get_names(%u) len%i failed: %d",
port_id, num_xstats, ret);
ret_val = -EPERM;
goto free_xstats;
}
for (i = 0; i < num_xstats; i++)
xstats_names[i] = eth_xstats_names[eth_xstats[i].id].name;
ret_val = rte_metrics_reg_names(xstats_names, num_xstats);
if (ret_val < 0) {
TELEMETRY_LOG_ERR("rte_metrics_reg_names failed - metrics may already be registered");
ret_val = -1;
goto free_xstats;
}
goto free_xstats;
free_xstats:
free(eth_xstats);
free(eth_xstats_names);
return ret_val;
}
static int32_t
rte_telemetry_initial_accept(struct telemetry_impl *telemetry)
{
struct driver_index {
const void *dev_ops;
int reg_index;
} drv_idx[RTE_MAX_ETHPORTS] = { {0} };
int nb_drv_idx = 0;
uint16_t pid;
int ret;
int selftest = 0;
RTE_ETH_FOREACH_DEV(pid) {
int i;
/* Different device types have different numbers of stats, so
* first check if the stats for this type of device have
* already been registered
*/
for (i = 0; i < nb_drv_idx; i++) {
if (rte_eth_devices[pid].dev_ops == drv_idx[i].dev_ops) {
telemetry->reg_index[pid] = drv_idx[i].reg_index;
break;
}
}
if (i < nb_drv_idx)
continue; /* we found a match, go to next port */
/* No match, register a new set of xstats for this port */
ret = rte_telemetry_reg_ethdev_to_metrics(pid);
if (ret < 0) {
TELEMETRY_LOG_ERR("Failed to register ethdev metrics");
return -1;
}
telemetry->reg_index[pid] = ret;
drv_idx[nb_drv_idx].dev_ops = rte_eth_devices[pid].dev_ops;
drv_idx[nb_drv_idx].reg_index = ret;
nb_drv_idx++;
}
telemetry->metrics_register_done = 1;
if (selftest) {
ret = rte_telemetry_socket_messaging_testing(telemetry->reg_index[0],
telemetry->server_fd);
if (ret < 0)
return -1;
ret = rte_telemetry_parser_test(telemetry);
if (ret < 0) {
TELEMETRY_LOG_ERR("Parser Tests Failed");
return -1;
}
TELEMETRY_LOG_INFO("Success - All Parser Tests Passed");
}
return 0;
}
static int32_t
rte_telemetry_read_client(struct telemetry_impl *telemetry)
{
char buf[BUF_SIZE];
int ret, buffer_read;
buffer_read = read(telemetry->accept_fd, buf, BUF_SIZE-1);
if (buffer_read == -1) {
TELEMETRY_LOG_ERR("Read error");
return -1;
} else if (buffer_read == 0) {
goto close_socket;
} else {
buf[buffer_read] = '\0';
ret = rte_telemetry_parse_client_message(telemetry, buf);
if (ret < 0)
TELEMETRY_LOG_WARN("Parse message failed");
goto close_socket;
}
close_socket:
if (close(telemetry->accept_fd) < 0) {
TELEMETRY_LOG_ERR("Close TELEMETRY socket failed");
free(telemetry);
return -EPERM;
}
telemetry->accept_fd = 0;
return 0;
}
static int32_t
rte_telemetry_accept_new_client(struct telemetry_impl *telemetry)
{
int ret;
if (telemetry->accept_fd <= 0) {
ret = listen(telemetry->server_fd, 1);
if (ret < 0) {
TELEMETRY_LOG_ERR("Listening error with server fd");
return -1;
}
telemetry->accept_fd = accept(telemetry->server_fd, NULL, NULL);
if (telemetry->accept_fd >= 0 &&
telemetry->metrics_register_done == 0) {
ret = rte_telemetry_initial_accept(telemetry);
if (ret < 0) {
TELEMETRY_LOG_ERR("Failed to run initial configurations/tests");
return -1;
}
}
} else {
ret = rte_telemetry_read_client(telemetry);
if (ret < 0) {
TELEMETRY_LOG_ERR("Failed to read socket buffer");
return -1;
}
}
return 0;
}
static int32_t
rte_telemetry_read_client_sockets(struct telemetry_impl *telemetry)
{
int ret;
telemetry_client *client;
char client_buf[BUF_SIZE];
int bytes;
TAILQ_FOREACH(client, &telemetry->client_list_head, client_list) {
bytes = read(client->fd, client_buf, BUF_SIZE-1);
if (bytes > 0) {
client_buf[bytes] = '\0';
telemetry->request_client = client;
ret = rte_telemetry_parse(telemetry, client_buf);
if (ret < 0) {
TELEMETRY_LOG_WARN("Parse socket input failed: %i",
ret);
return -1;
}
}
}
return 0;
}
static int32_t
rte_telemetry_run(void *userdata)
{
int ret;
struct telemetry_impl *telemetry = userdata;
if (telemetry == NULL) {
TELEMETRY_LOG_WARN("TELEMETRY could not be initialised");
return -1;
}
ret = rte_telemetry_accept_new_client(telemetry);
if (ret < 0) {
TELEMETRY_LOG_ERR("Accept and read new client failed");
return -1;
}
ret = rte_telemetry_read_client_sockets(telemetry);
if (ret < 0) {
TELEMETRY_LOG_ERR("Client socket read failed");
return -1;
}
return 0;
}
static void
*rte_telemetry_run_thread_func(void *userdata)
{
int ret;
struct telemetry_impl *telemetry = userdata;
if (telemetry == NULL) {
TELEMETRY_LOG_ERR("%s passed a NULL instance", __func__);
pthread_exit(0);
}
while (telemetry->thread_status) {
rte_telemetry_run(telemetry);
ret = usleep(SLEEP_TIME);
if (ret < 0)
TELEMETRY_LOG_ERR("Calling thread could not be put to sleep");
}
pthread_exit(0);
}
static int32_t
rte_telemetry_set_socket_nonblock(int fd)
{
int flags;
if (fd < 0) {
TELEMETRY_LOG_ERR("Invalid fd provided");
return -1;
}
flags = fcntl(fd, F_GETFL, 0);
if (flags < 0)
flags = 0;
return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
}
static int32_t
rte_telemetry_create_socket(struct telemetry_impl *telemetry)
{
int ret;
struct sockaddr_un addr;
char socket_path[BUF_SIZE];
if (telemetry == NULL)
return -1;
telemetry->server_fd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
if (telemetry->server_fd == -1) {
TELEMETRY_LOG_ERR("Failed to open socket");
return -1;
}
ret = rte_telemetry_set_socket_nonblock(telemetry->server_fd);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not set socket to NONBLOCK");
goto close_socket;
}
addr.sun_family = AF_UNIX;
rte_telemetry_get_runtime_dir(socket_path, sizeof(socket_path));
strlcpy(addr.sun_path, socket_path, sizeof(addr.sun_path));
unlink(socket_path);
if (bind(telemetry->server_fd, (struct sockaddr *)&addr,
sizeof(addr)) < 0) {
TELEMETRY_LOG_ERR("Socket binding error");
goto close_socket;
}
return 0;
close_socket:
if (close(telemetry->server_fd) < 0) {
TELEMETRY_LOG_ERR("Close TELEMETRY socket failed");
return -EPERM;
}
return -1;
}
int32_t
rte_telemetry_init(void)
{
int ret;
pthread_attr_t attr;
const char *telemetry_ctrl_thread = "telemetry";
if (static_telemetry) {
TELEMETRY_LOG_WARN("TELEMETRY structure already initialised");
return -EALREADY;
}
static_telemetry = calloc(1, sizeof(struct telemetry_impl));
if (static_telemetry == NULL) {
TELEMETRY_LOG_ERR("Memory could not be allocated");
return -ENOMEM;
}
static_telemetry->socket_id = rte_socket_id();
rte_metrics_init(static_telemetry->socket_id);
ret = pthread_attr_init(&attr);
if (ret != 0) {
TELEMETRY_LOG_ERR("Pthread attribute init failed");
return -EPERM;
}
ret = rte_telemetry_create_socket(static_telemetry);
if (ret < 0) {
ret = rte_telemetry_cleanup();
if (ret < 0)
TELEMETRY_LOG_ERR("TELEMETRY cleanup failed");
return -EPERM;
}
TAILQ_INIT(&static_telemetry->client_list_head);
ret = rte_ctrl_thread_create(&static_telemetry->thread_id,
telemetry_ctrl_thread, &attr, rte_telemetry_run_thread_func,
(void *)static_telemetry);
static_telemetry->thread_status = 1;
if (ret < 0) {
ret = rte_telemetry_cleanup();
if (ret < 0)
TELEMETRY_LOG_ERR("TELEMETRY cleanup failed");
return -EPERM;
}
return 0;
}
static int32_t
rte_telemetry_client_cleanup(struct telemetry_client *client)
{
int ret;
ret = close(client->fd);
free(client->file_path);
free(client);
if (ret < 0) {
TELEMETRY_LOG_ERR("Close client socket failed");
return -EPERM;
}
return 0;
}
int32_t
rte_telemetry_cleanup(void)
{
int ret;
struct telemetry_impl *telemetry = static_telemetry;
telemetry_client *client, *temp_client;
TAILQ_FOREACH_SAFE(client, &telemetry->client_list_head, client_list,
temp_client) {
TAILQ_REMOVE(&telemetry->client_list_head, client, client_list);
ret = rte_telemetry_client_cleanup(client);
if (ret < 0) {
TELEMETRY_LOG_ERR("Client cleanup failed");
return -EPERM;
}
}
ret = close(telemetry->server_fd);
if (ret < 0) {
TELEMETRY_LOG_ERR("Close TELEMETRY socket failed");
free(telemetry);
return -EPERM;
}
telemetry->thread_status = 0;
pthread_join(telemetry->thread_id, NULL);
free(telemetry);
static_telemetry = NULL;
return 0;
}
int32_t
rte_telemetry_unregister_client(struct telemetry_impl *telemetry,
const char *client_path)
{
int ret;
telemetry_client *client, *temp_client;
if (telemetry == NULL) {
TELEMETRY_LOG_WARN("TELEMETRY is not initialised");
return -ENODEV;
}
if (client_path == NULL) {
TELEMETRY_LOG_ERR("Invalid client path");
goto einval_fail;
}
if (TAILQ_EMPTY(&telemetry->client_list_head)) {
TELEMETRY_LOG_ERR("There are no clients currently registered");
return -EPERM;
}
TAILQ_FOREACH_SAFE(client, &telemetry->client_list_head, client_list,
temp_client) {
if (strcmp(client_path, client->file_path) == 0) {
TAILQ_REMOVE(&telemetry->client_list_head, client,
client_list);
ret = rte_telemetry_client_cleanup(client);
if (ret < 0) {
TELEMETRY_LOG_ERR("Client cleanup failed");
return -EPERM;
}
return 0;
}
}
TELEMETRY_LOG_WARN("Couldn't find client, possibly not registered yet.");
return -1;
einval_fail:
ret = rte_telemetry_send_error_response(telemetry, -EINVAL);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not send error");
return -EINVAL;
}
int32_t
rte_telemetry_register_client(struct telemetry_impl *telemetry,
const char *client_path)
{
int ret, fd;
struct sockaddr_un addrs;
if (telemetry == NULL) {
TELEMETRY_LOG_ERR("Could not initialize TELEMETRY API");
return -ENODEV;
}
if (client_path == NULL) {
TELEMETRY_LOG_ERR("Invalid client path");
return -EINVAL;
}
telemetry_client *client;
TAILQ_FOREACH(client, &telemetry->client_list_head, client_list) {
if (strcmp(client_path, client->file_path) == 0) {
TELEMETRY_LOG_WARN("'%s' already registered",
client_path);
return -EINVAL;
}
}
fd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
if (fd == -1) {
TELEMETRY_LOG_ERR("Client socket error");
return -EACCES;
}
ret = rte_telemetry_set_socket_nonblock(fd);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not set socket to NONBLOCK");
return -EPERM;
}
addrs.sun_family = AF_UNIX;
strlcpy(addrs.sun_path, client_path, sizeof(addrs.sun_path));
telemetry_client *new_client = malloc(sizeof(telemetry_client));
new_client->file_path = strdup(client_path);
new_client->fd = fd;
if (connect(fd, (struct sockaddr *)&addrs, sizeof(addrs)) == -1) {
TELEMETRY_LOG_ERR("TELEMETRY client connect to %s didn't work",
client_path);
ret = rte_telemetry_client_cleanup(new_client);
if (ret < 0) {
TELEMETRY_LOG_ERR("Client cleanup failed");
return -EPERM;
}
return -EINVAL;
}
TAILQ_INSERT_HEAD(&telemetry->client_list_head, new_client, client_list);
return 0;
}
int32_t
rte_telemetry_parse_client_message(struct telemetry_impl *telemetry, char *buf)
{
int ret, action_int;
json_error_t error;
json_t *root = json_loads(buf, 0, &error);
if (root == NULL) {
TELEMETRY_LOG_WARN("Could not load JSON object from data passed in : %s",
error.text);
goto fail;
} else if (!json_is_object(root)) {
TELEMETRY_LOG_WARN("JSON Request is not a JSON object");
goto fail;
}
json_t *action = json_object_get(root, "action");
if (action == NULL) {
TELEMETRY_LOG_WARN("Request does not have action field");
goto fail;
} else if (!json_is_integer(action)) {
TELEMETRY_LOG_WARN("Action value is not an integer");
goto fail;
}
json_t *command = json_object_get(root, "command");
if (command == NULL) {
TELEMETRY_LOG_WARN("Request does not have command field");
goto fail;
} else if (!json_is_string(command)) {
TELEMETRY_LOG_WARN("Command value is not a string");
goto fail;
}
action_int = json_integer_value(action);
if (action_int != ACTION_POST) {
TELEMETRY_LOG_WARN("Invalid action code");
goto fail;
}
if (strcmp(json_string_value(command), "clients") != 0) {
TELEMETRY_LOG_WARN("Invalid command");
goto fail;
}
json_t *data = json_object_get(root, "data");
if (data == NULL) {
TELEMETRY_LOG_WARN("Request does not have data field");
goto fail;
}
json_t *client_path = json_object_get(data, "client_path");
if (client_path == NULL) {
TELEMETRY_LOG_WARN("Request does not have client_path field");
goto fail;
}
if (!json_is_string(client_path)) {
TELEMETRY_LOG_WARN("Client_path value is not a string");
goto fail;
}
ret = rte_telemetry_register_client(telemetry,
json_string_value(client_path));
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not register client");
telemetry->register_fail_count++;
goto fail;
}
return 0;
fail:
TELEMETRY_LOG_WARN("Client attempted to register with invalid message");
json_decref(root);
return -1;
}
static int32_t
rte_telemetry_dummy_client_socket(const char *valid_client_path)
{
int sockfd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
struct sockaddr_un addr = {0};
if (sockfd < 0) {
TELEMETRY_LOG_ERR("Test socket creation failure");
return -1;
}
addr.sun_family = AF_UNIX;
strlcpy(addr.sun_path, valid_client_path, sizeof(addr.sun_path));
unlink(valid_client_path);
if (bind(sockfd, (struct sockaddr *)&addr, sizeof(addr)) < 0) {
TELEMETRY_LOG_ERR("Test socket binding failure");
return -1;
}
if (listen(sockfd, 1) < 0) {
TELEMETRY_LOG_ERR("Listen failure");
return -1;
}
return sockfd;
}
int32_t
rte_telemetry_selftest(void)
{
const char *invalid_client_path = SELFTEST_INVALID_CLIENT;
const char *valid_client_path = SELFTEST_VALID_CLIENT;
int ret, sockfd;
TELEMETRY_LOG_INFO("Selftest");
ret = rte_telemetry_init();
if (ret < 0) {
TELEMETRY_LOG_ERR("Valid initialisation test failed");
return -1;
}
TELEMETRY_LOG_INFO("Success - Valid initialisation test passed");
ret = rte_telemetry_init();
if (ret != -EALREADY) {
TELEMETRY_LOG_ERR("Invalid initialisation test failed");
return -1;
}
TELEMETRY_LOG_INFO("Success - Invalid initialisation test passed");
ret = rte_telemetry_unregister_client(static_telemetry,
invalid_client_path);
if (ret != -EPERM) {
TELEMETRY_LOG_ERR("Invalid unregister test failed");
return -1;
}
TELEMETRY_LOG_INFO("Success - Invalid unregister test passed");
sockfd = rte_telemetry_dummy_client_socket(valid_client_path);
if (sockfd < 0) {
TELEMETRY_LOG_ERR("Test socket creation failed");
return -1;
}
ret = rte_telemetry_register_client(static_telemetry, valid_client_path);
if (ret != 0) {
TELEMETRY_LOG_ERR("Valid register test failed: %i", ret);
return -1;
}
accept(sockfd, NULL, NULL);
TELEMETRY_LOG_INFO("Success - Valid register test passed");
ret = rte_telemetry_register_client(static_telemetry, valid_client_path);
if (ret != -EINVAL) {
TELEMETRY_LOG_ERR("Invalid register test failed: %i", ret);
return -1;
}
TELEMETRY_LOG_INFO("Success - Invalid register test passed");
ret = rte_telemetry_unregister_client(static_telemetry,
invalid_client_path);
if (ret != -1) {
TELEMETRY_LOG_ERR("Invalid unregister test failed: %i", ret);
return -1;
}
TELEMETRY_LOG_INFO("Success - Invalid unregister test passed");
ret = rte_telemetry_unregister_client(static_telemetry, valid_client_path);
if (ret != 0) {
TELEMETRY_LOG_ERR("Valid unregister test failed: %i", ret);
return -1;
}
TELEMETRY_LOG_INFO("Success - Valid unregister test passed");
ret = rte_telemetry_cleanup();
if (ret < 0) {
TELEMETRY_LOG_ERR("Cleanup test failed");
return -1;
}
TELEMETRY_LOG_INFO("Success - Valid cleanup test passed");
return 0;
}
int32_t
rte_telemetry_socket_messaging_testing(int index, int socket)
{
struct telemetry_impl *telemetry = calloc(1, sizeof(telemetry_impl));
int fd, bad_send_fd, send_fd, bad_fd, bad_recv_fd, recv_fd, ret;
if (telemetry == NULL) {
TELEMETRY_LOG_ERR("Could not initialize Telemetry API");
return -1;
}
telemetry->server_fd = socket;
telemetry->reg_index[0] = index;
TELEMETRY_LOG_INFO("Beginning Telemetry socket message Selftest");
rte_telemetry_socket_test_setup(telemetry, &send_fd, &recv_fd);
TELEMETRY_LOG_INFO("Register valid client test");
ret = rte_telemetry_socket_register_test(telemetry, &fd, send_fd,
recv_fd);
if (ret < 0) {
TELEMETRY_LOG_ERR("Register valid client test failed!");
free(telemetry);
return -1;
}
TELEMETRY_LOG_INFO("Success - Register valid client test passed!");
TELEMETRY_LOG_INFO("Register invalid/same client test");
ret = rte_telemetry_socket_test_setup(telemetry, &bad_send_fd,
&bad_recv_fd);
ret = rte_telemetry_socket_register_test(telemetry, &bad_fd,
bad_send_fd, bad_recv_fd);
if (!ret) {
TELEMETRY_LOG_ERR("Register invalid/same client test failed!");
free(telemetry);
return -1;
}
TELEMETRY_LOG_INFO("Success - Register invalid/same client test passed!");
ret = rte_telemetry_json_socket_message_test(telemetry, fd);
if (ret < 0) {
free(telemetry);
return -1;
}
free(telemetry);
return 0;
}
int32_t
rte_telemetry_socket_register_test(struct telemetry_impl *telemetry, int *fd,
int send_fd, int recv_fd)
{
int ret;
char good_req_string[BUF_SIZE];
snprintf(good_req_string, sizeof(good_req_string),
"{\"action\":1,\"command\":\"clients\",\"data\":{\"client_path\""
":\"%s\"}}", SOCKET_TEST_CLIENT_PATH);
listen(recv_fd, 1);
ret = send(send_fd, good_req_string, strlen(good_req_string), 0);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not send message over socket");
return -1;
}
rte_telemetry_run(telemetry);
if (telemetry->register_fail_count != 0)
return -1;
*fd = accept(recv_fd, NULL, NULL);
return 0;
}
int32_t
rte_telemetry_socket_test_setup(struct telemetry_impl *telemetry, int *send_fd,
int *recv_fd)
{
int ret;
const char *client_path = SOCKET_TEST_CLIENT_PATH;
char socket_path[BUF_SIZE];
struct sockaddr_un addr = {0};
struct sockaddr_un addrs = {0};
*send_fd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
*recv_fd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
listen(telemetry->server_fd, 5);
addr.sun_family = AF_UNIX;
rte_telemetry_get_runtime_dir(socket_path, sizeof(socket_path));
strlcpy(addr.sun_path, socket_path, sizeof(addr.sun_path));
ret = connect(*send_fd, (struct sockaddr *) &addr, sizeof(addr));
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not connect socket");
return -1;
}
telemetry->accept_fd = accept(telemetry->server_fd, NULL, NULL);
addrs.sun_family = AF_UNIX;
strlcpy(addrs.sun_path, client_path, sizeof(addrs.sun_path));
unlink(client_path);
ret = bind(*recv_fd, (struct sockaddr *)&addrs, sizeof(addrs));
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not bind socket");
return -1;
}
return 0;
}
static int32_t
rte_telemetry_stat_parse(char *buf, struct json_data *json_data_struct)
{
json_error_t error;
json_t *root = json_loads(buf, 0, &error);
int arraylen, i;
json_t *status, *dataArray, *port, *stats, *name, *value, *dataArrayObj,
*statsArrayObj;
stats = NULL;
port = NULL;
name = NULL;
if (buf == NULL) {
TELEMETRY_LOG_ERR("JSON message is NULL");
return -EINVAL;
}
if (root == NULL) {
TELEMETRY_LOG_ERR("Could not load JSON object from data passed in : %s",
error.text);
return -EPERM;
} else if (!json_is_object(root)) {
TELEMETRY_LOG_ERR("JSON Request is not a JSON object");
json_decref(root);
return -EINVAL;
}
status = json_object_get(root, "status_code");
if (!status) {
TELEMETRY_LOG_ERR("Request does not have status field");
return -EINVAL;
} else if (!json_is_string(status)) {
TELEMETRY_LOG_ERR("Status value is not a string");
return -EINVAL;
}
json_data_struct->status_code = strdup(json_string_value(status));
dataArray = json_object_get(root, "data");
if (dataArray == NULL) {
TELEMETRY_LOG_ERR("Request does not have data field");
return -EINVAL;
}
arraylen = json_array_size(dataArray);
if (arraylen == 0) {
json_data_struct->data = "null";
return -EINVAL;
}
for (i = 0; i < arraylen; i++) {
dataArrayObj = json_array_get(dataArray, i);
port = json_object_get(dataArrayObj, "port");
stats = json_object_get(dataArrayObj, "stats");
}
if (port == NULL) {
TELEMETRY_LOG_ERR("Request does not have port field");
return -EINVAL;
}
if (!json_is_integer(port)) {
TELEMETRY_LOG_ERR("Port value is not an integer");
return -EINVAL;
}
json_data_struct->port = json_integer_value(port);
if (stats == NULL) {
TELEMETRY_LOG_ERR("Request does not have stats field");
return -EINVAL;
}
arraylen = json_array_size(stats);
for (i = 0; i < arraylen; i++) {
statsArrayObj = json_array_get(stats, i);
name = json_object_get(statsArrayObj, "name");
value = json_object_get(statsArrayObj, "value");
}
if (name == NULL) {
TELEMETRY_LOG_ERR("Request does not have name field");
return -EINVAL;
}
if (!json_is_string(name)) {
TELEMETRY_LOG_ERR("Stat name value is not a string");
return -EINVAL;
}
json_data_struct->stat_name = strdup(json_string_value(name));
if (value == NULL) {
TELEMETRY_LOG_ERR("Request does not have value field");
return -EINVAL;
}
if (!json_is_integer(value)) {
TELEMETRY_LOG_ERR("Stat value is not an integer");
return -EINVAL;
}
json_data_struct->stat_value = json_integer_value(value);
return 0;
}
static void
rte_telemetry_free_test_data(struct json_data *data)
{
free(data->status_code);
free(data->stat_name);
free(data);
}
int32_t
rte_telemetry_valid_json_test(struct telemetry_impl *telemetry, int fd)
{
int ret;
int port = 0;
int value = 0;
int fail_count = 0;
int buffer_read = 0;
char buf[BUF_SIZE];
struct json_data *data_struct;
errno = 0;
const char *status = "Status OK: 200";
const char *name = "rx_good_packets";
const char *valid_json_message = "{\"action\":0,\"command\":"
"\"ports_stats_values_by_name\",\"data\":{\"ports\""
":[0],\"stats\":[\"rx_good_packets\"]}}";
ret = send(fd, valid_json_message, strlen(valid_json_message), 0);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not send message over socket");
return -1;
}
rte_telemetry_run(telemetry);
buffer_read = recv(fd, buf, BUF_SIZE-1, 0);
if (buffer_read == -1) {
TELEMETRY_LOG_ERR("Read error");
return -1;
}
buf[buffer_read] = '\0';
data_struct = calloc(1, sizeof(struct json_data));
ret = rte_telemetry_stat_parse(buf, data_struct);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not parse stats");
fail_count++;
}
if (strcmp(data_struct->status_code, status) != 0) {
TELEMETRY_LOG_ERR("Status code is invalid");
fail_count++;
}
if (data_struct->port != port) {
TELEMETRY_LOG_ERR("Port is invalid");
fail_count++;
}
if (strcmp(data_struct->stat_name, name) != 0) {
TELEMETRY_LOG_ERR("Stat name is invalid");
fail_count++;
}
if (data_struct->stat_value != value) {
TELEMETRY_LOG_ERR("Stat value is invalid");
fail_count++;
}
rte_telemetry_free_test_data(data_struct);
if (fail_count > 0)
return -1;
TELEMETRY_LOG_INFO("Success - Passed valid JSON message test passed");
return 0;
}
int32_t
rte_telemetry_invalid_json_test(struct telemetry_impl *telemetry, int fd)
{
int ret;
char buf[BUF_SIZE];
int fail_count = 0;
const char *invalid_json = "{]";
const char *status = "Status Error: Unknown";
const char *data = "null";
struct json_data *data_struct;
int buffer_read = 0;
errno = 0;
ret = send(fd, invalid_json, strlen(invalid_json), 0);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not send message over socket");
return -1;
}
rte_telemetry_run(telemetry);
buffer_read = recv(fd, buf, BUF_SIZE-1, 0);
if (buffer_read == -1) {
TELEMETRY_LOG_ERR("Read error");
return -1;
}
buf[buffer_read] = '\0';
data_struct = calloc(1, sizeof(struct json_data));
ret = rte_telemetry_stat_parse(buf, data_struct);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not parse stats");
if (strcmp(data_struct->status_code, status) != 0) {
TELEMETRY_LOG_ERR("Status code is invalid");
fail_count++;
}
if (strcmp(data_struct->data, data) != 0) {
TELEMETRY_LOG_ERR("Data status is invalid");
fail_count++;
}
rte_telemetry_free_test_data(data_struct);
if (fail_count > 0)
return -1;
TELEMETRY_LOG_INFO("Success - Passed invalid JSON message test");
return 0;
}
int32_t
rte_telemetry_json_contents_test(struct telemetry_impl *telemetry, int fd)
{
int ret;
char buf[BUF_SIZE];
int fail_count = 0;
const char *status = "Status Error: Invalid Argument 404";
const char *data = "null";
struct json_data *data_struct;
const char *invalid_contents = "{\"action\":0,\"command\":"
"\"ports_stats_values_by_name\",\"data\":{\"ports\""
":[0],\"stats\":[\"some_invalid_param\","
"\"another_invalid_param\"]}}";
int buffer_read = 0;
errno = 0;
ret = send(fd, invalid_contents, strlen(invalid_contents), 0);
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not send message over socket");
return -1;
}
rte_telemetry_run(telemetry);
buffer_read = recv(fd, buf, BUF_SIZE-1, 0);
if (buffer_read == -1) {
TELEMETRY_LOG_ERR("Read error");
return -1;
}
buf[buffer_read] = '\0';
data_struct = calloc(1, sizeof(struct json_data));
ret = rte_telemetry_stat_parse(buf, data_struct);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not parse stats");
if (strcmp(data_struct->status_code, status) != 0) {
TELEMETRY_LOG_ERR("Status code is invalid");
fail_count++;
}
if (strcmp(data_struct->data, data) != 0) {
TELEMETRY_LOG_ERR("Data status is invalid");
fail_count++;
}
rte_telemetry_free_test_data(data_struct);
if (fail_count > 0)
return -1;
TELEMETRY_LOG_INFO("Success - Passed invalid JSON content test");
return 0;
}
int32_t
rte_telemetry_json_empty_test(struct telemetry_impl *telemetry, int fd)
{
int ret;
char buf[BUF_SIZE];
int fail_count = 0;
const char *status = "Status Error: Invalid Argument 404";
const char *data = "null";
struct json_data *data_struct;
const char *empty_json = "{}";
int buffer_read = 0;
errno = 0;
ret = (send(fd, empty_json, strlen(empty_json), 0));
if (ret < 0) {
TELEMETRY_LOG_ERR("Could not send message over socket");
return -1;
}
rte_telemetry_run(telemetry);
buffer_read = recv(fd, buf, BUF_SIZE-1, 0);
if (buffer_read == -1) {
TELEMETRY_LOG_ERR("Read error");
return -1;
}
buf[buffer_read] = '\0';
data_struct = calloc(1, sizeof(struct json_data));
ret = rte_telemetry_stat_parse(buf, data_struct);
if (ret < 0)
TELEMETRY_LOG_ERR("Could not parse stats");
if (strcmp(data_struct->status_code, status) != 0) {
TELEMETRY_LOG_ERR("Status code is invalid");
fail_count++;
}
if (strcmp(data_struct->data, data) != 0) {
TELEMETRY_LOG_ERR("Data status is invalid");
fail_count++;
}
rte_telemetry_free_test_data(data_struct);
if (fail_count > 0)
return -1;
TELEMETRY_LOG_INFO("Success - Passed JSON empty message test");
return 0;
}
int32_t
rte_telemetry_json_socket_message_test(struct telemetry_impl *telemetry, int fd)
{
uint16_t i;
int ret, fail_count;
fail_count = 0;
struct telemetry_message_test socket_json_tests[] = {
{.test_name = "Invalid JSON test",
.test_func_ptr = rte_telemetry_invalid_json_test},
{.test_name = "Valid JSON test",
.test_func_ptr = rte_telemetry_valid_json_test},
{.test_name = "JSON contents test",
.test_func_ptr = rte_telemetry_json_contents_test},
{.test_name = "JSON empty tests",
.test_func_ptr = rte_telemetry_json_empty_test}
};
#define NUM_TESTS RTE_DIM(socket_json_tests)
for (i = 0; i < NUM_TESTS; i++) {
TELEMETRY_LOG_INFO("%s", socket_json_tests[i].test_name);
ret = (socket_json_tests[i].test_func_ptr)
(telemetry, fd);
if (ret < 0) {
TELEMETRY_LOG_ERR("%s failed",
socket_json_tests[i].test_name);
fail_count++;
}
}
if (fail_count > 0) {
TELEMETRY_LOG_ERR("Failed %i JSON socket message test(s)",
fail_count);
return -1;
}
TELEMETRY_LOG_INFO("Success - All JSON tests passed");
return 0;
}
int telemetry_log_level;
static struct rte_option option = {
.name = "telemetry",
.usage = "Enable telemetry backend",
.cb = &rte_telemetry_init,
.enabled = 0
};
RTE_INIT(rte_telemetry_register)
{
telemetry_log_level = rte_log_register("lib.telemetry");
if (telemetry_log_level >= 0)
rte_log_set_level(telemetry_log_level, RTE_LOG_ERR);
rte_option_register(&option);
}