*/
static ovs_events_ctx_t ovs_events_ctx = {
.mutex = PTHREAD_MUTEX_INITIALIZER,
- .config = {.ovs_db_node = "localhost", /* use default OVS DB node */
+ .config = {.send_notification = 1, /* send notification by default */
+ .ovs_db_node = "localhost", /* use default OVS DB node */
.ovs_db_serv = "6640"} /* use default OVS DB service */
};
+/* Forward declaration */
+static int ovs_events_plugin_read(user_data_t *u);
+
/* This function is used only by "OVS_EVENTS_CTX_LOCK" define (see above).
* It always returns 1 when context is locked.
*/
static int ovs_events_ctx_lock() {
pthread_mutex_lock(&ovs_events_ctx.mutex);
- return (1);
+ return 1;
}
/* This function is used only by "OVS_EVENTS_CTX_LOCK" define (see above).
*/
static int ovs_events_ctx_unlock() {
pthread_mutex_unlock(&ovs_events_ctx.mutex);
- return (0);
+ return 0;
}
/* Check if given interface name exists in configuration file. It
*/
static int ovs_events_config_iface_exists(const char *ifname) {
if (ovs_events_ctx.config.ifaces == NULL)
- return (-1);
+ return -1;
/* check if given interface exists */
for (ovs_events_iface_list_t *iface = ovs_events_ctx.config.ifaces; iface;
iface = iface->next)
if (strcmp(ifname, iface->name) == 0)
- return (1);
+ return 1;
- return (0);
+ return 0;
}
/* Get OVS DB select parameter request based on rfc7047,
if (ci->values[j].type != OCONFIG_TYPE_STRING) {
ERROR(OVS_EVENTS_PLUGIN
": given interface name is not a string [idx=%d]", j);
- return (-1);
+ return -1;
}
/* allocate memory for configured interface */
ovs_events_iface_list_t *new_iface = calloc(1, sizeof(*new_iface));
if (new_iface == NULL) {
ERROR(OVS_EVENTS_PLUGIN ": calloc () copy interface name fail");
- return (-1);
+ return -1;
} else {
/* store interface name */
sstrncpy(new_iface->name, ci->values[j].value.string,
new_iface->name);
}
}
- return (0);
+ return 0;
}
/* Parse plugin configuration file and store the config
* in allocated memory. Returns negative value in case of error.
*/
static int ovs_events_plugin_config(oconfig_item_t *ci) {
+ _Bool dispatch_values = 0;
for (int i = 0; i < ci->children_num; i++) {
oconfig_item_t *child = ci->children + i;
if (strcasecmp("SendNotification", child->key) == 0) {
if (cf_util_get_boolean(child,
&ovs_events_ctx.config.send_notification) != 0) {
ovs_events_config_free();
- return (-1);
+ return -1;
}
} else if (strcasecmp("Address", child->key) == 0) {
if (cf_util_get_string_buffer(
child, ovs_events_ctx.config.ovs_db_node,
sizeof(ovs_events_ctx.config.ovs_db_node)) != 0) {
ovs_events_config_free();
- return (-1);
+ return -1;
}
} else if (strcasecmp("Port", child->key) == 0) {
char *service = NULL;
if (cf_util_get_service(child, &service) != 0) {
ovs_events_config_free();
- return (-1);
+ return -1;
}
strncpy(ovs_events_ctx.config.ovs_db_serv, service,
sizeof(ovs_events_ctx.config.ovs_db_serv));
child, ovs_events_ctx.config.ovs_db_unix,
sizeof(ovs_events_ctx.config.ovs_db_unix)) != 0) {
ovs_events_config_free();
- return (-1);
+ return -1;
}
} else if (strcasecmp("Interfaces", child->key) == 0) {
if (ovs_events_config_get_interfaces(child) != 0) {
ovs_events_config_free();
- return (-1);
+ return -1;
+ }
+ } else if (strcasecmp("DispatchValues", child->key) == 0) {
+ if (cf_util_get_boolean(child, &dispatch_values) != 0) {
+ ovs_events_config_free();
+ return -1;
}
} else {
ERROR(OVS_EVENTS_PLUGIN ": option '%s' is not allowed here", child->key);
ovs_events_config_free();
- return (-1);
+ return -1;
}
}
- return (0);
+ /* Check and warn about invalid configuration */
+ if (!ovs_events_ctx.config.send_notification && !dispatch_values) {
+ WARNING(OVS_EVENTS_PLUGIN ": send notification and dispatch values "
+ "options are disabled. No information will be dispatched by the "
+ "plugin. Please check your configuration");
+ }
+ /* Dispatch link status values if configured */
+ if (dispatch_values)
+ return plugin_register_complex_read(NULL, OVS_EVENTS_PLUGIN,
+ ovs_events_plugin_read, 0, NULL);
+
+ return 0;
}
/* Dispatch OVS interface link status event to collectd */
/* check YAJL type */
if (!YAJL_IS_OBJECT(jobject))
- return (-1);
+ return -1;
/* zero the interface info structure */
memset(ifinfo, 0, sizeof(*ifinfo));
/* try to find external_ids, name and link_state fields */
jexternal_ids = ovs_utils_get_value_by_key(jobject, "external_ids");
if (jexternal_ids == NULL || ifinfo == NULL)
- return (-1);
+ return -1;
/* get iface-id from external_ids field */
jvalue = ovs_utils_get_map_value(jexternal_ids, "iface-id");
jvalue = ovs_utils_get_value_by_key(jobject, "_uuid");
if (jvalue == NULL || !YAJL_IS_ARRAY(jvalue) ||
YAJL_GET_ARRAY(jvalue)->len != 2)
- return (-1);
+ return -1;
juuid = YAJL_GET_ARRAY(jvalue)->values[1];
if (juuid == NULL || !YAJL_IS_STRING(juuid))
- return (-1);
+ return -1;
sstrncpy(ifinfo->uuid, YAJL_GET_STRING(juuid), sizeof(ifinfo->uuid));
/* get interface name */
jvalue = ovs_utils_get_value_by_key(jobject, "name");
if (jvalue == NULL || !YAJL_IS_STRING(jvalue))
- return (-1);
+ return -1;
sstrncpy(ifinfo->name, YAJL_GET_STRING(jvalue), sizeof(ifinfo->name));
/* get OVS DB interface link status */
else if (strcmp(state, "down") == 0)
ifinfo->link_status = DOWN;
}
- return (0);
+ return 0;
}
/* Process OVS DB update table event. It handles link status update event(s)
ovs_events_ctx.ovs_db_select_params,
ovs_events_poll_result_cb) < 0) {
ERROR(OVS_EVENTS_PLUGIN ": get interface info failed");
- return (-1);
+ return -1;
}
- return (0);
+ return 0;
}
/* Initialize OVS plugin */
OVS_EVENTS_CTX_LOCK { ovs_events_ctx.ovs_db = ovs_db; }
DEBUG(OVS_EVENTS_PLUGIN ": plugin has been initialized");
- return (0);
+ return 0;
ovs_events_failure:
ERROR(OVS_EVENTS_PLUGIN ": plugin initialize failed");
/* release allocated memory */
ovs_events_config_free();
- return (-1);
+ return -1;
}
/* Shutdown OVS plugin */
ovs_events_config_free();
DEBUG(OVS_EVENTS_PLUGIN ": plugin has been destroyed");
- return (0);
+ return 0;
}
/* Register OVS plugin callbacks */
void module_register(void) {
plugin_register_complex_config(OVS_EVENTS_PLUGIN, ovs_events_plugin_config);
plugin_register_init(OVS_EVENTS_PLUGIN, ovs_events_plugin_init);
- plugin_register_complex_read(NULL, OVS_EVENTS_PLUGIN, ovs_events_plugin_read,
- 0, NULL);
plugin_register_shutdown(OVS_EVENTS_PLUGIN, ovs_events_plugin_shutdown);
}
projects / collectd.git / blobdiff