--- /dev/null
+/*
+ * collectd - src/ovs_stats.c
+ *
+ * Copyright(c) 2016 Intel Corporation. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is furnished to do
+ * so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ * Taras Chornyi <tarasx.chornyi@intel.com>
+ */
+
+#include "common.h"
+
+#include "utils_ovs.h" /* OvS helpers */
+
+/* Plugin name */
+static const char plugin_name[] = "ovs_stats";
+
+typedef enum iface_counter {
+ not_supportred = -1,
+ collisions,
+ rx_bytes,
+ rx_crc_err,
+ rx_dropped,
+ rx_errors,
+ rx_frame_err,
+ rx_over_err,
+ rx_packets,
+ tx_bytes,
+ tx_dropped,
+ tx_errors,
+ tx_packets,
+ rx_1_to_64_packets,
+ rx_65_to_127_packets,
+ rx_128_to_255_packets,
+ rx_256_to_511_packets,
+ rx_512_to_1023_packets,
+ rx_1024_to_1522_packets,
+ rx_1523_to_max_packets,
+ tx_1_to_64_packets,
+ tx_65_to_127_packets,
+ tx_128_to_255_packets,
+ tx_256_to_511_packets,
+ tx_512_to_1023_packets,
+ tx_1024_to_1522_packets,
+ tx_1523_to_max_packets,
+ tx_multicast_packets,
+ rx_broadcast_packets,
+ tx_broadcast_packets,
+ rx_undersized_errors,
+ rx_oversize_errors,
+ rx_fragmented_errors,
+ rx_jabber_errors,
+ __iface_counter_max
+} iface_counter;
+
+#define IFACE_COUNTER_MAX (__iface_counter_max - 1)
+#define IFACE_COUNTER_COUNT (__iface_counter_max)
+#define PORT_NAME_SIZE_MAX 255
+#define UUID_SIZE 64
+
+typedef struct port_s {
+ char name[PORT_NAME_SIZE_MAX]; /* Port name */
+ char port_uuid[UUID_SIZE]; /* Port table _uuid */
+ char iface_uuid[UUID_SIZE]; /* Interface table uuid */
+ char ex_iface_id[UUID_SIZE]; /* External iface id */
+ char ex_vm_id[UUID_SIZE]; /* External vm id */
+ int64_t stats[IFACE_COUNTER_COUNT]; /* Port statistics */
+ struct bridge_list_s *br; /* Pointer to bridge */
+ struct port_s *next; /* Next port */
+} port_list_t;
+
+typedef struct bridge_list_s {
+ char *name; /* Bridge name */
+ struct bridge_list_s *next; /* Next bridge*/
+} bridge_list_t;
+
+static const char *const iface_counter_table[IFACE_COUNTER_COUNT] = {
+ [collisions] = "collisions",
+ [rx_bytes] = "rx_bytes",
+ [rx_crc_err] = "rx_crc_err",
+ [rx_dropped] = "rx_dropped",
+ [rx_errors] = "rx_errors",
+ [rx_frame_err] = "rx_frame_err",
+ [rx_over_err] = "rx_over_err",
+ [rx_packets] = "rx_packets",
+ [tx_bytes] = "tx_bytes",
+ [tx_dropped] = "tx_dropped",
+ [tx_errors] = "tx_errors",
+ [tx_packets] = "tx_packets",
+ [rx_1_to_64_packets] = "rx_1_to_64_packets",
+ [rx_65_to_127_packets] = "rx_65_to_127_packets",
+ [rx_128_to_255_packets] = "rx_128_to_255_packets",
+ [rx_256_to_511_packets] = "rx_256_to_511_packets",
+ [rx_512_to_1023_packets] = "rx_512_to_1023_packets",
+ [rx_1024_to_1522_packets] = "rx_1024_to_1518_packets",
+ [rx_1523_to_max_packets] = "rx_1523_to_max_packets",
+ [tx_1_to_64_packets] = "tx_1_to_64_packets",
+ [tx_65_to_127_packets] = "tx_65_to_127_packets",
+ [tx_128_to_255_packets] = "tx_128_to_255_packets",
+ [tx_256_to_511_packets] = "tx_256_to_511_packets",
+ [tx_512_to_1023_packets] = "tx_512_to_1023_packets",
+ [tx_1024_to_1522_packets] = "tx_1024_to_1518_packets",
+ [tx_1523_to_max_packets] = "tx_1523_to_max_packets",
+ [tx_multicast_packets] = "tx_multicast_packets",
+ [rx_broadcast_packets] = "rx_broadcast_packets",
+ [tx_broadcast_packets] = "tx_broadcast_packets",
+ [rx_undersized_errors] = "rx_undersized_errors",
+ [rx_oversize_errors] = "rx_oversize_errors",
+ [rx_fragmented_errors] = "rx_fragmented_errors",
+ [rx_jabber_errors] = "rx_jabber_errors",
+};
+
+/* Entry into the list of network bridges */
+static bridge_list_t *g_bridge_list_head = NULL;
+
+/* Entry into the list of monitored network bridges */
+static bridge_list_t *g_monitored_bridge_list_head = NULL;
+
+/* entry into the list of network bridges */
+static port_list_t *g_port_list_head = NULL;
+
+/* lock for statistics cache */
+static pthread_mutex_t g_stats_lock;
+
+/* OvS DB socket */
+static ovs_db_t *ovs_db = NULL;
+
+/* OVS stats configuration data */
+struct ovs_stats_config_s {
+ char ovs_db_node[OVS_DB_ADDR_NODE_SIZE]; /* OVS DB node */
+ char ovs_db_serv[OVS_DB_ADDR_SERVICE_SIZE]; /* OVS DB service */
+ char ovs_db_unix[OVS_DB_ADDR_UNIX_SIZE]; /* OVS DB unix socket path */
+};
+typedef struct ovs_stats_config_s ovs_stats_config_t;
+
+static ovs_stats_config_t ovs_stats_cfg = {
+ .ovs_db_node = "localhost", /* use default OVS DB node */
+ .ovs_db_serv = "6640", /* use default OVS DB service */
+};
+
+static const iface_counter ovs_stats_counter_name_to_type(const char *counter) {
+ iface_counter index = not_supportred;
+
+ if (counter == NULL)
+ return not_supportred;
+
+ for (int i = 0; i < IFACE_COUNTER_COUNT; i++) {
+ if (strncmp(iface_counter_table[i], counter,
+ strlen(iface_counter_table[i])) == 0) {
+ index = i;
+ break;
+ }
+ }
+ return index;
+}
+
+static void ovs_stats_submit_one(const char *dev, const char *type,
+ const char *type_instance, derive_t value,
+ meta_data_t *meta) {
+ /* if counter is less than 0 - skip it*/
+ if (value < 0)
+ return;
+ value_list_t vl = VALUE_LIST_INIT;
+
+ vl.values = &(value_t){.derive = value};
+ vl.values_len = 1;
+ vl.meta = meta;
+
+ sstrncpy(vl.plugin, plugin_name, sizeof(vl.plugin));
+ sstrncpy(vl.plugin_instance, dev, sizeof(vl.plugin_instance));
+ sstrncpy(vl.type, type, sizeof(vl.type));
+
+ if (type_instance != NULL)
+ sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
+
+ plugin_dispatch_values(&vl);
+}
+
+static void ovs_stats_submit_two(const char *dev, const char *type,
+ const char *type_instance, derive_t rx,
+ derive_t tx, meta_data_t *meta) {
+ /* if counter is less than 0 - skip it*/
+ if (rx < 0 || tx < 0)
+ return;
+ value_list_t vl = VALUE_LIST_INIT;
+ value_t values[] = {{.derive = rx}, {.derive = tx}};
+
+ vl.values = values;
+ vl.values_len = STATIC_ARRAY_SIZE(values);
+ vl.meta = meta;
+
+ sstrncpy(vl.plugin, plugin_name, sizeof(vl.plugin));
+ sstrncpy(vl.plugin_instance, dev, sizeof(vl.plugin_instance));
+ sstrncpy(vl.type, type, sizeof(vl.type));
+
+ if (type_instance != NULL)
+ sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
+
+ plugin_dispatch_values(&vl);
+}
+
+static port_list_t *ovs_stats_get_port(const char *uuid) {
+ if (uuid == NULL)
+ return NULL;
+
+ for (port_list_t *port = g_port_list_head; port != NULL; port = port->next) {
+ if (strncmp(port->port_uuid, uuid, strlen(port->port_uuid)) == 0)
+ return port;
+ }
+ return NULL;
+}
+
+static port_list_t *ovs_stats_get_port_by_name(const char *name) {
+ if (name == NULL)
+ return NULL;
+
+ for (port_list_t *port = g_port_list_head; port != NULL; port = port->next)
+ if ((strncmp(port->name, name, strlen(port->name)) == 0) &&
+ strlen(name) == strlen(port->name))
+ return port;
+ return NULL;
+}
+
+/* Create or get port by port uuid */
+static port_list_t *ovs_stats_new_port(bridge_list_t *bridge,
+ const char *uuid) {
+ port_list_t *port = ovs_stats_get_port(uuid);
+
+ if (port == NULL) {
+ port = (port_list_t *)calloc(1, sizeof(port_list_t));
+ if (!port) {
+ ERROR("%s: Error allocating port", plugin_name);
+ return NULL;
+ }
+ memset(port->stats, -1, sizeof(int64_t[IFACE_COUNTER_COUNT]));
+ sstrncpy(port->port_uuid, uuid, sizeof(port->port_uuid));
+ pthread_mutex_lock(&g_stats_lock);
+ port->next = g_port_list_head;
+ g_port_list_head = port;
+ pthread_mutex_unlock(&g_stats_lock);
+ }
+ if (bridge != NULL) {
+ pthread_mutex_lock(&g_stats_lock);
+ port->br = bridge;
+ pthread_mutex_unlock(&g_stats_lock);
+ }
+ return port;
+}
+
+/* Get bridge by name*/
+static bridge_list_t *ovs_stats_get_bridge(bridge_list_t *head,
+ const char *name) {
+ if (name == NULL)
+ return NULL;
+
+ for (bridge_list_t *bridge = head; bridge != NULL; bridge = bridge->next) {
+ if ((strncmp(bridge->name, name, strlen(bridge->name)) == 0) &&
+ strlen(name) == strlen(bridge->name))
+ return bridge;
+ }
+ return NULL;
+}
+
+/* Delete bridge */
+static int ovs_stats_del_bridge(yajl_val bridge) {
+ const char *old[] = {"old", NULL};
+ const char *name[] = {"name", NULL};
+
+ yajl_val row;
+
+ if (bridge && YAJL_IS_OBJECT(bridge)) {
+ row = yajl_tree_get(bridge, old, yajl_t_object);
+ if (row && YAJL_IS_OBJECT(row)) {
+ yajl_val br_name = yajl_tree_get(row, name, yajl_t_string);
+ if (br_name && YAJL_IS_STRING(br_name)) {
+ bridge_list_t *prev_br = g_bridge_list_head;
+ for (bridge_list_t *br = g_bridge_list_head; br != NULL;
+ prev_br = br, br = br->next) {
+ if ((strncmp(br->name, br_name->u.string, strlen(br->name)) == 0) &&
+ strlen(br->name) == strlen(br_name->u.string)) {
+ if (br == g_bridge_list_head)
+ g_bridge_list_head = br->next;
+ else
+ prev_br->next = br->next;
+ sfree(br->name);
+ sfree(br);
+ break;
+ }
+ }
+ }
+ }
+ } else
+ WARNING("%s: Incorrect data for deleting bridge", plugin_name);
+ return (0);
+}
+
+/* Update Bridge. Create bridge ports*/
+static int ovs_stats_update_bridge(yajl_val bridge) {
+ const char *new[] = {"new", NULL};
+ const char *name[] = {"name", NULL};
+ const char *ports[] = {"ports", NULL};
+ bridge_list_t *br = NULL;
+
+ if (bridge && YAJL_IS_OBJECT(bridge)) {
+ yajl_val row = yajl_tree_get(bridge, new, yajl_t_object);
+ if (row && YAJL_IS_OBJECT(row)) {
+ yajl_val br_name = yajl_tree_get(row, name, yajl_t_string);
+ yajl_val br_ports = yajl_tree_get(row, ports, yajl_t_array);
+ if (br_name && YAJL_IS_STRING(br_name)) {
+ br = ovs_stats_get_bridge(g_bridge_list_head, YAJL_GET_STRING(br_name));
+ pthread_mutex_lock(&g_stats_lock);
+ if (br == NULL) {
+ br = (bridge_list_t *)calloc(1, sizeof(bridge_list_t));
+ if (!br) {
+ ERROR("%s: Error allocating memory for bridge", plugin_name);
+ return (-1);
+ }
+ char *tmp = YAJL_GET_STRING(br_name);
+
+ if (tmp != NULL)
+ br->name = strdup(tmp);
+ if (br->name == NULL) {
+ sfree(br);
+ pthread_mutex_unlock(&g_stats_lock);
+ return (-1);
+ }
+ br->next = g_bridge_list_head;
+ g_bridge_list_head = br;
+ }
+ pthread_mutex_unlock(&g_stats_lock);
+ }
+ if (br_ports && YAJL_IS_ARRAY(br_ports)) {
+ char *tmp = YAJL_GET_STRING(br_ports->u.array.values[0]);
+ if (tmp != NULL && strcmp("set", tmp) == 0) {
+ yajl_val *ports_arr =
+ YAJL_GET_ARRAY(br_ports->u.array.values[1])->values;
+ size_t ports_num = YAJL_GET_ARRAY(br_ports->u.array.values[1])->len;
+
+ for (int i = 0; i < ports_num; i++)
+ ovs_stats_new_port(
+ br, YAJL_GET_STRING(ports_arr[i]->u.array.values[1]));
+ } else
+ ovs_stats_new_port(br, YAJL_GET_STRING(br_ports->u.array.values[1]));
+ }
+ }
+ } else {
+ ERROR("Incorrect JSON Bridge data");
+ return (-1);
+ }
+ return (0);
+}
+
+/* Handle JSON with Bridge Table change event */
+static void ovs_stats_bridge_table_change_cb(yajl_val jupdates) {
+ /* Bridge Table update example JSON data
+ {
+ "Bridge": {
+ "bb1f8965-5775-46d9-b820-236ca8edbedc": {
+ "new": {
+ "name": "br0",
+ "ports": [
+ "set",
+ [
+ [
+ "uuid",
+ "117f1a07-7ef0-458a-865c-ec7fbb85bc01"
+ ],
+ [
+ "uuid",
+ "12fd8bdc-e950-4281-aaa9-46e185658f79"
+ ]
+ ]
+ ]
+ }
+ }
+ }
+ }
+ */
+ const char *path[] = {"Bridge", NULL};
+
+ yajl_val bridges = yajl_tree_get(jupdates, path, yajl_t_object);
+
+ if (bridges && YAJL_IS_OBJECT(bridges)) {
+ for (int i = 0; i < YAJL_GET_OBJECT(bridges)->len; i++) {
+ yajl_val bridge = YAJL_GET_OBJECT(bridges)->values[i];
+ ovs_stats_update_bridge(bridge);
+ }
+ }
+}
+
+/* Handle Bridge Table delete event */
+static void ovs_stats_bridge_table_delete_cb(yajl_val jupdates) {
+ const char *path[] = {"Bridge", NULL};
+ yajl_val bridges = yajl_tree_get(jupdates, path, yajl_t_object);
+ yajl_val bridge;
+ if (bridges && YAJL_IS_OBJECT(bridges)) {
+ pthread_mutex_lock(&g_stats_lock);
+ for (int i = 0; i < YAJL_GET_OBJECT(bridges)->len; i++) {
+ bridge = YAJL_GET_OBJECT(bridges)->values[i];
+ ovs_stats_del_bridge(bridge);
+ }
+ pthread_mutex_unlock(&g_stats_lock);
+ }
+ return;
+}
+
+/* Handle JSON with Bridge table initial values */
+static void ovs_stats_bridge_table_result_cb(yajl_val jresult,
+ yajl_val jerror) {
+ if (YAJL_IS_NULL(jerror))
+ ovs_stats_bridge_table_change_cb(jresult);
+ else
+ ERROR("%s: Error received from OvSDB. Table: Bridge", plugin_name);
+ return;
+}
+
+/* Update port name */
+static int ovs_stats_update_port(const char *uuid, yajl_val port) {
+ const char *new[] = {"new", NULL};
+ const char *name[] = {"name", NULL};
+ yajl_val row;
+ port_list_t *portentry = NULL;
+ if (port && YAJL_IS_OBJECT(port)) {
+ row = yajl_tree_get(port, new, yajl_t_object);
+ if (row && YAJL_IS_OBJECT(row)) {
+ yajl_val port_name = yajl_tree_get(row, name, yajl_t_string);
+ if (port_name && YAJL_IS_STRING(port_name)) {
+ portentry = ovs_stats_get_port(uuid);
+ if (portentry == NULL)
+ portentry = ovs_stats_new_port(NULL, uuid);
+ if (portentry) {
+ pthread_mutex_lock(&g_stats_lock);
+ sstrncpy(portentry->name, YAJL_GET_STRING(port_name),
+ sizeof(portentry->name));
+ pthread_mutex_unlock(&g_stats_lock);
+ }
+ }
+ }
+ } else {
+ ERROR("Incorrect JSON Port data");
+ return (-1);
+ }
+ return (0);
+}
+
+/* Delete port from global port list */
+static int ovs_stats_del_port(const char *uuid) {
+ port_list_t *prev_port = g_port_list_head;
+ for (port_list_t *port = g_port_list_head; port != NULL;
+ prev_port = port, port = port->next) {
+ if (strncmp(port->port_uuid, uuid, strlen(port->port_uuid)) == 0) {
+ if (port == g_port_list_head)
+ g_port_list_head = port->next;
+ else
+ prev_port->next = port->next;
+ sfree(port);
+ break;
+ }
+ }
+ return (0);
+}
+
+/* Handle JSON with Port Table change event */
+static void ovs_stats_port_table_change_cb(yajl_val jupdates) {
+ /* Port Table update example JSON data
+ {
+ "Port": {
+ "ab107d6f-28a1-4257-b1cc-5b742821db8a": {
+ "new": {
+ "name": "br1",
+ "interfaces": [
+ "uuid",
+ "33a289a0-1d34-4e46-a3c2-3e4066fbecc6"
+ ]
+ }
+ }
+ }
+ }
+ */
+ const char *path[] = {"Port", NULL};
+ yajl_val ports = yajl_tree_get(jupdates, path, yajl_t_object);
+ yajl_val port;
+ if (ports && YAJL_IS_OBJECT(ports)) {
+ for (int i = 0; i < YAJL_GET_OBJECT(ports)->len; i++) {
+ port = YAJL_GET_OBJECT(ports)->values[i];
+ ovs_stats_update_port(YAJL_GET_OBJECT(ports)->keys[i], port);
+ }
+ }
+ return;
+}
+
+/* Handle JSON with Port table initial values */
+static void ovs_stats_port_table_result_cb(yajl_val jresult, yajl_val jerror) {
+ if (YAJL_IS_NULL(jerror))
+ ovs_stats_port_table_change_cb(jresult);
+ else
+ ERROR("%s: Error received from OvSDB. Table: Port", plugin_name);
+ return;
+}
+
+/* Handle Port Table delete event */
+static void ovs_stats_port_table_delete_cb(yajl_val jupdates) {
+ const char *path[] = {"Port", NULL};
+ yajl_val ports = yajl_tree_get(jupdates, path, yajl_t_object);
+ pthread_mutex_lock(&g_stats_lock);
+ if (ports && YAJL_IS_OBJECT(ports))
+ for (int i = 0; i < YAJL_GET_OBJECT(ports)->len; i++) {
+ ovs_stats_del_port(YAJL_GET_OBJECT(ports)->keys[i]);
+ }
+ pthread_mutex_unlock(&g_stats_lock);
+ return;
+}
+
+/* Update interface statistics */
+static int ovs_stats_update_iface_stats(port_list_t *port, yajl_val stats) {
+ yajl_val stat;
+ iface_counter counter_index = 0;
+ char *counter_name = NULL;
+ int64_t counter_value = 0;
+ if (stats && YAJL_IS_ARRAY(stats))
+ for (int i = 0; i < YAJL_GET_ARRAY(stats)->len; i++) {
+ stat = YAJL_GET_ARRAY(stats)->values[i];
+ counter_name = YAJL_GET_STRING(YAJL_GET_ARRAY(stat)->values[0]);
+ counter_index = ovs_stats_counter_name_to_type(counter_name);
+ counter_value = YAJL_GET_INTEGER(YAJL_GET_ARRAY(stat)->values[1]);
+ if (counter_index == not_supportred)
+ continue;
+ port->stats[counter_index] = counter_value;
+ }
+
+ return (0);
+}
+
+/* Update interface external_ids */
+static int ovs_stats_update_iface_ext_ids(port_list_t *port, yajl_val ext_ids) {
+ yajl_val ext_id;
+ char *key;
+ char *value;
+
+ if (ext_ids && YAJL_IS_ARRAY(ext_ids))
+ for (int i = 0; i < YAJL_GET_ARRAY(ext_ids)->len; i++) {
+ ext_id = YAJL_GET_ARRAY(ext_ids)->values[i];
+ key = YAJL_GET_STRING(YAJL_GET_ARRAY(ext_id)->values[0]);
+ value = YAJL_GET_STRING(YAJL_GET_ARRAY(ext_id)->values[1]);
+ if (key && value) {
+ if (strncmp(key, "iface-id", strlen(key)) == 0)
+ sstrncpy(port->ex_iface_id, value, sizeof(port->ex_iface_id));
+ else if (strncmp(key, "vm-uuid", strlen(key)) == 0)
+ sstrncpy(port->ex_vm_id, value, sizeof(port->ex_vm_id));
+ }
+ }
+
+ return (0);
+}
+
+/* Get interface statistic and external_ids */
+static int ovs_stats_update_iface(yajl_val iface) {
+ yajl_val row;
+ port_list_t *port = NULL;
+ if (iface && YAJL_IS_OBJECT(iface)) {
+ row = ovs_utils_get_value_by_key(iface, "new");
+ if (row && YAJL_IS_OBJECT(row)) {
+ yajl_val iface_name = ovs_utils_get_value_by_key(row, "name");
+ yajl_val iface_stats = ovs_utils_get_value_by_key(row, "statistics");
+ yajl_val iface_ext_ids = ovs_utils_get_value_by_key(row, "external_ids");
+ yajl_val iface_uuid = ovs_utils_get_value_by_key(row, "_uuid");
+ if (iface_name && YAJL_IS_STRING(iface_name)) {
+ port = ovs_stats_get_port_by_name(YAJL_GET_STRING(iface_name));
+ if (port == NULL)
+ return (0);
+ }
+ /*
+ * {
+ "statistics": [
+ "map",
+ [
+ [
+ "collisions",
+ 0
+ ],
+ . . .
+ [
+ "tx_packets",
+ 0
+ ]
+ ]
+ ]
+ }
+ Check that statistics is an array with 2 elements
+ */
+ if (iface_stats && YAJL_IS_ARRAY(iface_stats) &&
+ YAJL_GET_ARRAY(iface_stats)->len == 2)
+ ovs_stats_update_iface_stats(port,
+ YAJL_GET_ARRAY(iface_stats)->values[1]);
+ if (iface_ext_ids && YAJL_IS_ARRAY(iface_ext_ids))
+ ovs_stats_update_iface_ext_ids(
+ port, YAJL_GET_ARRAY(iface_ext_ids)->values[1]);
+ if (iface_uuid && YAJL_IS_ARRAY(iface_uuid) &&
+ YAJL_GET_ARRAY(iface_uuid)->len == 2)
+ sstrncpy(port->iface_uuid,
+ YAJL_GET_STRING(YAJL_GET_ARRAY(iface_uuid)->values[1]),
+ sizeof(port->iface_uuid));
+ }
+ } else {
+ ERROR("Incorrect JSON Port data");
+ return (-1);
+ }
+ return (0);
+}
+
+/* Handle JSON with Interface Table change event */
+static void ovs_stats_interface_table_change_cb(yajl_val jupdates) {
+ /* Interface Table update example JSON data
+ {
+ "Interface": {
+ "33a289a0-1d34-4e46-a3c2-3e4066fbecc6": {
+ "new": {
+ "name": "br1",
+ "statistics": [
+ "map",
+ [
+ [
+ "collisions",
+ 0
+ ],
+ [
+ "rx_bytes",
+ 0
+ ],
+ . . .
+ [
+ "tx_packets",
+ 12617
+ ]
+ ]
+ ],
+ "_uuid": [
+ "uuid",
+ "33a289a0-1d34-4e46-a3c2-3e4066fbecc6"
+ ]
+ "external_ids": [
+ "map",
+ [
+ [
+ "attached-mac",
+ "fa:16:3e:7c:1c:4b"
+ ],
+ [
+ "iface-id",
+ "a61b7e2b-6951-488a-b4c6-6e91343960b2"
+ ],
+ [
+ "iface-status",
+ "active"
+ ]
+ ]
+ ]
+ }
+ }
+ }
+ }
+ */
+ const char *path[] = {"Interface", NULL};
+ yajl_val ports = yajl_tree_get(jupdates, path, yajl_t_object);
+ pthread_mutex_lock(&g_stats_lock);
+ if (ports && YAJL_IS_OBJECT(ports))
+ for (int i = 0; i < YAJL_GET_OBJECT(ports)->len; i++)
+ ovs_stats_update_iface(YAJL_GET_OBJECT(ports)->values[i]);
+ pthread_mutex_unlock(&g_stats_lock);
+ return;
+}
+
+/* Handle JSON with Interface table initial values */
+static void ovs_stats_interface_table_result_cb(yajl_val jresult,
+ yajl_val jerror) {
+ if (YAJL_IS_NULL(jerror))
+ ovs_stats_interface_table_change_cb(jresult);
+ else
+ ERROR("%s: Error received from OvSDB. Table: Interface", plugin_name);
+ return;
+}
+
+/* Setup OVS DB table callbacks */
+static void ovs_stats_initialize(ovs_db_t *pdb) {
+ const char *bridge_columns[] = {"name", "ports", NULL};
+ const char *port_columns[] = {"name", "interfaces", NULL};
+ const char *interface_columns[] = {"name", "statistics", "_uuid",
+ "external_ids", NULL};
+
+ /* subscribe to a tables */
+ ovs_db_table_cb_register(pdb, "Bridge", bridge_columns,
+ ovs_stats_bridge_table_change_cb,
+ ovs_stats_bridge_table_result_cb,
+ OVS_DB_TABLE_CB_FLAG_INITIAL |
+ OVS_DB_TABLE_CB_FLAG_INSERT |
+ OVS_DB_TABLE_CB_FLAG_MODIFY);
+
+ ovs_db_table_cb_register(pdb, "Bridge", bridge_columns,
+ ovs_stats_bridge_table_delete_cb, NULL,
+ OVS_DB_TABLE_CB_FLAG_DELETE);
+
+ ovs_db_table_cb_register(pdb, "Port", port_columns,
+ ovs_stats_port_table_change_cb,
+ ovs_stats_port_table_result_cb,
+ OVS_DB_TABLE_CB_FLAG_INITIAL |
+ OVS_DB_TABLE_CB_FLAG_INSERT |
+ OVS_DB_TABLE_CB_FLAG_MODIFY);
+
+ ovs_db_table_cb_register(pdb, "Port", port_columns,
+ ovs_stats_port_table_delete_cb, NULL,
+ OVS_DB_TABLE_CB_FLAG_DELETE);
+
+ ovs_db_table_cb_register(pdb, "Interface", interface_columns,
+ ovs_stats_interface_table_change_cb,
+ ovs_stats_interface_table_result_cb,
+ OVS_DB_TABLE_CB_FLAG_INITIAL |
+ OVS_DB_TABLE_CB_FLAG_INSERT |
+ OVS_DB_TABLE_CB_FLAG_MODIFY);
+}
+
+/* Check if bridge is configured to be monitored in config file */
+static int ovs_stats_is_monitored_bridge(const char *br_name) {
+ int rc = 0;
+ /* if no bridges are configured, return true */
+ if (!(rc = (g_monitored_bridge_list_head == NULL)))
+ rc = (ovs_stats_get_bridge(g_monitored_bridge_list_head, br_name) != NULL);
+ return rc;
+}
+
+/* Delete all ports from port list */
+static void ovs_stats_free_port_list(port_list_t *head) {
+ port_list_t *i, *del;
+
+ for (i = head; i != NULL;) {
+ del = i;
+ i = i->next;
+ sfree(del);
+ }
+}
+
+/* Delete all bridges from bridge list */
+static void ovs_stats_free_bridge_list(bridge_list_t *head) {
+ bridge_list_t *i, *del;
+
+ for (i = head; i != NULL;) {
+ del = i;
+ i = i->next;
+ sfree(del->name);
+ sfree(del);
+ }
+}
+
+/* Handle OVSDB lost connection callback */
+static void ovs_stats_conn_terminate() {
+
+ WARNING("Lost connection to OVSDB server");
+ pthread_mutex_lock(&g_stats_lock);
+ ovs_stats_free_bridge_list(g_bridge_list_head);
+ g_bridge_list_head = NULL;
+ ovs_stats_free_port_list(g_port_list_head);
+ g_port_list_head = NULL;
+ pthread_mutex_unlock(&g_stats_lock);
+}
+
+/* Parse plugin configuration file and store the config
+ * in allocated memory. Returns negative value in case of error.
+ */
+static int ovs_stats_plugin_config(oconfig_item_t *ci) {
+ bridge_list_t *bridge;
+ char *br_name;
+
+ for (int i = 0; i < ci->children_num; i++) {
+ oconfig_item_t *child = ci->children + i;
+ if (strcasecmp("Address", child->key) == 0) {
+ if (cf_util_get_string_buffer(child, ovs_stats_cfg.ovs_db_node,
+ OVS_DB_ADDR_NODE_SIZE) != 0) {
+ ERROR("%s: parse '%s' option failed", plugin_name, child->key);
+ return (-1);
+ }
+ } else if (strcasecmp("Port", child->key) == 0) {
+ if (cf_util_get_string_buffer(child, ovs_stats_cfg.ovs_db_serv,
+ OVS_DB_ADDR_SERVICE_SIZE) != 0) {
+ ERROR("%s: parse '%s' option failed", plugin_name, child->key);
+ return (-1);
+ }
+ } else if (strcasecmp("Socket", child->key) == 0) {
+ if (cf_util_get_string_buffer(child, ovs_stats_cfg.ovs_db_unix,
+ OVS_DB_ADDR_UNIX_SIZE) != 0) {
+ ERROR("%s: parse '%s' option failed", plugin_name, child->key);
+ return (-1);
+ }
+ } else if (strcasecmp("Bridges", child->key) == 0) {
+ for (int j = 0; j < child->values_num; j++) {
+ /* check value type */
+ if (child->values[j].type != OCONFIG_TYPE_STRING) {
+ ERROR("%s: Wrong bridge name [idx=%d]. "
+ "Bridge name should be string",
+ plugin_name, j);
+ goto cleanup_fail;
+ }
+ /* get value */
+ if ((br_name = strdup(child->values[j].value.string)) == NULL) {
+ ERROR("%s: strdup() copy bridge name fail", plugin_name);
+ goto cleanup_fail;
+ }
+ if ((bridge = ovs_stats_get_bridge(g_monitored_bridge_list_head,
+ br_name)) == NULL) {
+ if ((bridge = calloc(1, sizeof(bridge_list_t))) == NULL) {
+ ERROR("%s: Error allocating memory for bridge", plugin_name);
+ goto cleanup_fail;
+ } else {
+ pthread_mutex_lock(&g_stats_lock);
+ /* store bridge name */
+ bridge->name = br_name;
+ bridge->next = g_monitored_bridge_list_head;
+ g_monitored_bridge_list_head = bridge;
+ pthread_mutex_unlock(&g_stats_lock);
+ DEBUG("%s: found monitored interface \"%s\"", plugin_name, br_name);
+ }
+ }
+ }
+ } else {
+ WARNING("%s: option '%s' not allowed here", plugin_name, child->key);
+ goto cleanup_fail;
+ }
+ }
+ return (0);
+
+cleanup_fail:
+ ovs_stats_free_bridge_list(g_monitored_bridge_list_head);
+ return (-1);
+}
+
+/* Initialize OvS Stats plugin*/
+static int ovs_stats_plugin_init(void) {
+ ovs_db_callback_t cb = {.post_conn_init = ovs_stats_initialize,
+ .post_conn_terminate = ovs_stats_conn_terminate};
+
+ INFO("%s: Connecting to OVS DB using address=%s, service=%s, unix=%s",
+ plugin_name, ovs_stats_cfg.ovs_db_node, ovs_stats_cfg.ovs_db_serv,
+ ovs_stats_cfg.ovs_db_unix);
+ /* connect to OvS DB */
+ if ((ovs_db = ovs_db_init (ovs_stats_cfg.ovs_db_node,
+ ovs_stats_cfg.ovs_db_serv,
+ ovs_stats_cfg.ovs_db_unix, &cb)) == NULL) {
+ ERROR("%s: plugin: failed to connect to OvS DB server", plugin_name);
+ return (-1);
+ }
+ int err = pthread_mutex_init(&g_stats_lock, NULL);
+ if (err < 0) {
+ ERROR("%s: plugin: failed to initialize cache lock", plugin_name);
+ ovs_db_destroy(ovs_db);
+ return (-1);
+ }
+ return (0);
+}
+
+/* OvS stats read callback. Read bridge/port information and submit it*/
+static int ovs_stats_plugin_read(__attribute__((unused)) user_data_t *ud) {
+ bridge_list_t *bridge;
+ port_list_t *port;
+ char devname[PORT_NAME_SIZE_MAX];
+
+ pthread_mutex_lock(&g_stats_lock);
+ for (bridge = g_bridge_list_head; bridge != NULL; bridge = bridge->next) {
+ if (ovs_stats_is_monitored_bridge(bridge->name)) {
+ for (port = g_port_list_head; port != NULL; port = port->next)
+ if (port->br == bridge) {
+ if (strlen(port->name) == 0)
+ /* Skip port w/o name. This is possible when read callback
+ * is called after Interface Table update callback but before
+ * Port table Update callback. Will add this port on next read */
+ continue;
+ meta_data_t *meta = meta_data_create();
+ if (meta != NULL) {
+ meta_data_add_string(meta, "uuid", port->iface_uuid);
+ if (strlen(port->ex_vm_id))
+ meta_data_add_string(meta, "vm-uuid", port->ex_vm_id);
+ if (strlen(port->ex_iface_id))
+ meta_data_add_string(meta, "iface-id", port->ex_iface_id);
+ }
+ snprintf(devname, sizeof(devname), "%s.%s", bridge->name, port->name);
+ ovs_stats_submit_one(devname, "if_collisions", NULL,
+ port->stats[collisions], meta);
+ ovs_stats_submit_two(devname, "if_dropped", NULL,
+ port->stats[rx_dropped], port->stats[tx_dropped],
+ meta);
+ ovs_stats_submit_two(devname, "if_errors", NULL,
+ port->stats[rx_errors], port->stats[tx_errors],
+ meta);
+ ovs_stats_submit_two(devname, "if_packets", NULL,
+ port->stats[rx_packets], port->stats[tx_packets],
+ meta);
+ ovs_stats_submit_one(devname, "if_rx_errors", "crc",
+ port->stats[rx_crc_err], meta);
+ ovs_stats_submit_one(devname, "if_rx_errors", "frame",
+ port->stats[rx_frame_err], meta);
+ ovs_stats_submit_one(devname, "if_rx_errors", "over",
+ port->stats[rx_over_err], meta);
+ ovs_stats_submit_one(devname, "if_rx_octets", NULL,
+ port->stats[rx_bytes], meta);
+ ovs_stats_submit_one(devname, "if_tx_octets", NULL,
+ port->stats[tx_bytes], meta);
+ ovs_stats_submit_two(devname, "if_packets", "1_to_64_packets",
+ port->stats[rx_1_to_64_packets],
+ port->stats[tx_1_to_64_packets], meta);
+ ovs_stats_submit_two(devname, "if_packets", "65_to_127_packets",
+ port->stats[rx_65_to_127_packets],
+ port->stats[tx_65_to_127_packets], meta);
+ ovs_stats_submit_two(devname, "if_packets", "128_to_255_packets",
+ port->stats[rx_128_to_255_packets],
+ port->stats[tx_128_to_255_packets], meta);
+ ovs_stats_submit_two(devname, "if_packets", "512_to_1023_packets",
+ port->stats[rx_512_to_1023_packets],
+ port->stats[tx_512_to_1023_packets], meta);
+ ovs_stats_submit_two(devname, "if_packets", "1024_to_1518_packets",
+ port->stats[rx_1024_to_1522_packets],
+ port->stats[tx_1024_to_1522_packets], meta);
+ ovs_stats_submit_two(devname, "if_packets", "1523_to_max_packets",
+ port->stats[rx_1523_to_max_packets],
+ port->stats[tx_1523_to_max_packets], meta);
+ ovs_stats_submit_two(devname, "if_packets", "broadcast_packets",
+ port->stats[rx_broadcast_packets],
+ port->stats[tx_broadcast_packets], meta);
+ ovs_stats_submit_one(devname, "if_multicast", "tx_multicast_packets",
+ port->stats[tx_multicast_packets], meta);
+ ovs_stats_submit_one(devname, "if_rx_errors", "rx_undersized_errors",
+ port->stats[rx_undersized_errors], meta);
+ ovs_stats_submit_one(devname, "if_rx_errors", "rx_oversize_errors",
+ port->stats[rx_oversize_errors], meta);
+ ovs_stats_submit_one(devname, "if_rx_errors", "rx_fragmented_errors",
+ port->stats[rx_fragmented_errors], meta);
+ ovs_stats_submit_one(devname, "if_rx_errors", "rx_jabber_errors",
+ port->stats[rx_jabber_errors], meta);
+
+ meta_data_destroy(meta);
+ }
+ } else
+ continue;
+ }
+ pthread_mutex_unlock(&g_stats_lock);
+ return (0);
+}
+
+/* Shutdown OvS Stats plugin */
+static int ovs_stats_plugin_shutdown(void) {
+ pthread_mutex_lock(&g_stats_lock);
+ DEBUG("OvS Statistics plugin shutting down");
+ ovs_db_destroy(ovs_db);
+ ovs_stats_free_bridge_list(g_bridge_list_head);
+ ovs_stats_free_bridge_list(g_monitored_bridge_list_head);
+ ovs_stats_free_port_list(g_port_list_head);
+ pthread_mutex_unlock(&g_stats_lock);
+ pthread_mutex_destroy(&g_stats_lock);
+ return (0);
+}
+
+/* Register OvS Stats plugin callbacks */
+void module_register(void) {
+ plugin_register_complex_config(plugin_name, ovs_stats_plugin_config);
+ plugin_register_init(plugin_name, ovs_stats_plugin_init);
+ plugin_register_complex_read(NULL, plugin_name, ovs_stats_plugin_read, 0,
+ NULL);
+ plugin_register_shutdown(plugin_name, ovs_stats_plugin_shutdown);
+}
projects / collectd.git / commitdiff