2 * collectd - src/ovs_stats.c
4 * Copyright(c) 2016 Intel Corporation. All rights reserved.
6 * Permission is hereby granted, free of charge, to any person obtaining a copy of
7 * this software and associated documentation files (the "Software"), to deal in
8 * the Software without restriction, including without limitation the rights to
9 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
10 * of the Software, and to permit persons to whom the Software is furnished to do
11 * so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in all
14 * copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 * Taras Chornyi <tarasx.chornyi@intel.com>
30 #include "utils_ovs.h" /* OvS helpers */
33 static const char plugin_name[] = "ovs_stats";
35 typedef enum iface_counter {
51 rx_128_to_255_packets,
52 rx_256_to_511_packets,
53 rx_512_to_1023_packets,
54 rx_1024_to_1522_packets,
55 rx_1523_to_max_packets,
58 tx_128_to_255_packets,
59 tx_256_to_511_packets,
60 tx_512_to_1023_packets,
61 tx_1024_to_1522_packets,
62 tx_1523_to_max_packets,
73 #define IFACE_COUNTER_MAX (__iface_counter_max - 1)
74 #define IFACE_COUNTER_COUNT (__iface_counter_max)
75 #define PORT_NAME_SIZE_MAX 255
78 typedef struct port_s {
79 char name[PORT_NAME_SIZE_MAX]; /* Port name */
80 char port_uuid[UUID_SIZE]; /* Port table _uuid */
81 char iface_uuid[UUID_SIZE]; /* Interface table uuid */
82 char ex_iface_id[UUID_SIZE]; /* External iface id */
83 char ex_vm_id[UUID_SIZE]; /* External vm id */
84 int64_t stats[IFACE_COUNTER_COUNT]; /* Port statistics */
85 struct bridge_list_s *br; /* Pointer to bridge */
86 struct port_s *next; /* Next port */
89 typedef struct bridge_list_s {
90 char *name; /* Bridge name */
91 struct bridge_list_s *next; /* Next bridge*/
94 static const char *const iface_counter_table[IFACE_COUNTER_COUNT] = {
95 [collisions] = "collisions",
96 [rx_bytes] = "rx_bytes",
97 [rx_crc_err] = "rx_crc_err",
98 [rx_dropped] = "rx_dropped",
99 [rx_errors] = "rx_errors",
100 [rx_frame_err] = "rx_frame_err",
101 [rx_over_err] = "rx_over_err",
102 [rx_packets] = "rx_packets",
103 [tx_bytes] = "tx_bytes",
104 [tx_dropped] = "tx_dropped",
105 [tx_errors] = "tx_errors",
106 [tx_packets] = "tx_packets",
107 [rx_1_to_64_packets] = "rx_1_to_64_packets",
108 [rx_65_to_127_packets] = "rx_65_to_127_packets",
109 [rx_128_to_255_packets] = "rx_128_to_255_packets",
110 [rx_256_to_511_packets] = "rx_256_to_511_packets",
111 [rx_512_to_1023_packets] = "rx_512_to_1023_packets",
112 [rx_1024_to_1522_packets] = "rx_1024_to_1518_packets",
113 [rx_1523_to_max_packets] = "rx_1523_to_max_packets",
114 [tx_1_to_64_packets] = "tx_1_to_64_packets",
115 [tx_65_to_127_packets] = "tx_65_to_127_packets",
116 [tx_128_to_255_packets] = "tx_128_to_255_packets",
117 [tx_256_to_511_packets] = "tx_256_to_511_packets",
118 [tx_512_to_1023_packets] = "tx_512_to_1023_packets",
119 [tx_1024_to_1522_packets] = "tx_1024_to_1518_packets",
120 [tx_1523_to_max_packets] = "tx_1523_to_max_packets",
121 [tx_multicast_packets] = "tx_multicast_packets",
122 [rx_broadcast_packets] = "rx_broadcast_packets",
123 [tx_broadcast_packets] = "tx_broadcast_packets",
124 [rx_undersized_errors] = "rx_undersized_errors",
125 [rx_oversize_errors] = "rx_oversize_errors",
126 [rx_fragmented_errors] = "rx_fragmented_errors",
127 [rx_jabber_errors] = "rx_jabber_errors",
130 /* Entry into the list of network bridges */
131 static bridge_list_t *g_bridge_list_head;
133 /* Entry into the list of monitored network bridges */
134 static bridge_list_t *g_monitored_bridge_list_head;
136 /* entry into the list of network bridges */
137 static port_list_t *g_port_list_head;
139 /* lock for statistics cache */
140 static pthread_mutex_t g_stats_lock;
143 static ovs_db_t *g_ovs_db;
145 /* OVS stats configuration data */
146 struct ovs_stats_config_s {
147 char ovs_db_node[OVS_DB_ADDR_NODE_SIZE]; /* OVS DB node */
148 char ovs_db_serv[OVS_DB_ADDR_SERVICE_SIZE]; /* OVS DB service */
149 char ovs_db_unix[OVS_DB_ADDR_UNIX_SIZE]; /* OVS DB unix socket path */
151 typedef struct ovs_stats_config_s ovs_stats_config_t;
153 static ovs_stats_config_t ovs_stats_cfg = {
154 .ovs_db_node = "localhost", /* use default OVS DB node */
155 .ovs_db_serv = "6640", /* use default OVS DB service */
158 static const iface_counter ovs_stats_counter_name_to_type(const char *counter) {
159 iface_counter index = not_supported;
162 return not_supported;
164 for (int i = 0; i < IFACE_COUNTER_COUNT; i++) {
165 if (strncmp(iface_counter_table[i], counter,
166 strlen(iface_counter_table[i])) == 0) {
174 static const char *ovs_stats_counter_name_from_type(iface_counter type) {
175 if (type <= IFACE_COUNTER_MAX)
176 return iface_counter_table[type];
181 static void ovs_stats_submit_one(const char *dev, const char *type,
182 const char *type_instance, derive_t value,
184 /* if counter is less than 0 - skip it*/
187 value_list_t vl = VALUE_LIST_INIT;
189 vl.values = &(value_t){.derive = value};
193 sstrncpy(vl.plugin, plugin_name, sizeof(vl.plugin));
194 sstrncpy(vl.plugin_instance, dev, sizeof(vl.plugin_instance));
195 sstrncpy(vl.type, type, sizeof(vl.type));
197 if (type_instance != NULL)
198 sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
200 plugin_dispatch_values(&vl);
203 static void ovs_stats_submit_two(const char *dev, const char *type,
204 const char *type_instance, derive_t rx,
205 derive_t tx, meta_data_t *meta) {
206 /* if counter is less than 0 - skip it*/
207 if (rx < 0 || tx < 0)
209 value_list_t vl = VALUE_LIST_INIT;
210 value_t values[] = {{.derive = rx}, {.derive = tx}};
213 vl.values_len = STATIC_ARRAY_SIZE(values);
216 sstrncpy(vl.plugin, plugin_name, sizeof(vl.plugin));
217 sstrncpy(vl.plugin_instance, dev, sizeof(vl.plugin_instance));
218 sstrncpy(vl.type, type, sizeof(vl.type));
220 if (type_instance != NULL)
221 sstrncpy(vl.type_instance, type_instance, sizeof(vl.type_instance));
223 plugin_dispatch_values(&vl);
226 static port_list_t *ovs_stats_get_port(const char *uuid) {
230 for (port_list_t *port = g_port_list_head; port != NULL; port = port->next) {
231 if (strncmp(port->port_uuid, uuid, strlen(port->port_uuid)) == 0)
237 static port_list_t *ovs_stats_get_port_by_name(const char *name) {
241 for (port_list_t *port = g_port_list_head; port != NULL; port = port->next)
242 if ((strncmp(port->name, name, strlen(port->name)) == 0) &&
243 strlen(name) == strlen(port->name))
248 /* Create or get port by port uuid */
249 static port_list_t *ovs_stats_new_port(bridge_list_t *bridge,
251 port_list_t *port = ovs_stats_get_port(uuid);
254 port = (port_list_t *)calloc(1, sizeof(port_list_t));
256 ERROR("%s: Error allocating port", plugin_name);
259 memset(port->stats, -1, sizeof(int64_t[IFACE_COUNTER_COUNT]));
260 sstrncpy(port->port_uuid, uuid, sizeof(port->port_uuid));
261 pthread_mutex_lock(&g_stats_lock);
262 port->next = g_port_list_head;
263 g_port_list_head = port;
264 pthread_mutex_unlock(&g_stats_lock);
266 if (bridge != NULL) {
267 pthread_mutex_lock(&g_stats_lock);
269 pthread_mutex_unlock(&g_stats_lock);
274 /* Get bridge by name*/
275 static bridge_list_t *ovs_stats_get_bridge(bridge_list_t *head,
280 for (bridge_list_t *bridge = head; bridge != NULL; bridge = bridge->next) {
281 if ((strncmp(bridge->name, name, strlen(bridge->name)) == 0) &&
282 strlen(name) == strlen(bridge->name))
289 static int ovs_stats_del_bridge(yajl_val bridge) {
290 const char *old[] = {"old", NULL};
291 const char *name[] = {"name", NULL};
295 if (bridge && YAJL_IS_OBJECT(bridge)) {
296 row = yajl_tree_get(bridge, old, yajl_t_object);
297 if (row && YAJL_IS_OBJECT(row)) {
298 yajl_val br_name = yajl_tree_get(row, name, yajl_t_string);
299 if (br_name && YAJL_IS_STRING(br_name)) {
300 bridge_list_t *prev_br = g_bridge_list_head;
301 for (bridge_list_t *br = g_bridge_list_head; br != NULL;
302 prev_br = br, br = br->next) {
303 if ((strncmp(br->name, br_name->u.string, strlen(br->name)) == 0) &&
304 strlen(br->name) == strlen(br_name->u.string)) {
305 if (br == g_bridge_list_head)
306 g_bridge_list_head = br->next;
308 prev_br->next = br->next;
317 WARNING("%s: Incorrect data for deleting bridge", plugin_name);
321 /* Update Bridge. Create bridge ports*/
322 static int ovs_stats_update_bridge(yajl_val bridge) {
323 const char *new[] = {"new", NULL};
324 const char *name[] = {"name", NULL};
325 const char *ports[] = {"ports", NULL};
326 bridge_list_t *br = NULL;
328 if (bridge && YAJL_IS_OBJECT(bridge)) {
329 yajl_val row = yajl_tree_get(bridge, new, yajl_t_object);
330 if (row && YAJL_IS_OBJECT(row)) {
331 yajl_val br_name = yajl_tree_get(row, name, yajl_t_string);
332 yajl_val br_ports = yajl_tree_get(row, ports, yajl_t_array);
333 if (br_name && YAJL_IS_STRING(br_name)) {
334 br = ovs_stats_get_bridge(g_bridge_list_head, YAJL_GET_STRING(br_name));
335 pthread_mutex_lock(&g_stats_lock);
337 br = (bridge_list_t *)calloc(1, sizeof(bridge_list_t));
339 ERROR("%s: Error allocating memory for bridge", plugin_name);
342 char *tmp = YAJL_GET_STRING(br_name);
345 br->name = strdup(tmp);
346 if (br->name == NULL) {
348 pthread_mutex_unlock(&g_stats_lock);
351 br->next = g_bridge_list_head;
352 g_bridge_list_head = br;
354 pthread_mutex_unlock(&g_stats_lock);
356 if (br_ports && YAJL_IS_ARRAY(br_ports)) {
357 char *tmp = YAJL_GET_STRING(br_ports->u.array.values[0]);
358 if (tmp != NULL && strcmp("set", tmp) == 0) {
359 yajl_val *ports_arr =
360 YAJL_GET_ARRAY(br_ports->u.array.values[1])->values;
361 size_t ports_num = YAJL_GET_ARRAY(br_ports->u.array.values[1])->len;
363 for (int i = 0; i < ports_num; i++)
365 br, YAJL_GET_STRING(ports_arr[i]->u.array.values[1]));
367 ovs_stats_new_port(br, YAJL_GET_STRING(br_ports->u.array.values[1]));
371 ERROR("Incorrect JSON Bridge data");
377 /* Handle JSON with Bridge Table change event */
378 static void ovs_stats_bridge_table_change_cb(yajl_val jupdates) {
379 /* Bridge Table update example JSON data
382 "bb1f8965-5775-46d9-b820-236ca8edbedc": {
390 "117f1a07-7ef0-458a-865c-ec7fbb85bc01"
394 "12fd8bdc-e950-4281-aaa9-46e185658f79"
403 const char *path[] = {"Bridge", NULL};
405 yajl_val bridges = yajl_tree_get(jupdates, path, yajl_t_object);
407 if (bridges && YAJL_IS_OBJECT(bridges)) {
408 for (int i = 0; i < YAJL_GET_OBJECT(bridges)->len; i++) {
409 yajl_val bridge = YAJL_GET_OBJECT(bridges)->values[i];
410 ovs_stats_update_bridge(bridge);
415 /* Handle Bridge Table delete event */
416 static void ovs_stats_bridge_table_delete_cb(yajl_val jupdates) {
417 const char *path[] = {"Bridge", NULL};
418 yajl_val bridges = yajl_tree_get(jupdates, path, yajl_t_object);
420 if (bridges && YAJL_IS_OBJECT(bridges)) {
421 pthread_mutex_lock(&g_stats_lock);
422 for (int i = 0; i < YAJL_GET_OBJECT(bridges)->len; i++) {
423 bridge = YAJL_GET_OBJECT(bridges)->values[i];
424 ovs_stats_del_bridge(bridge);
426 pthread_mutex_unlock(&g_stats_lock);
431 /* Handle JSON with Bridge table initial values */
432 static void ovs_stats_bridge_table_result_cb(yajl_val jresult,
434 if (YAJL_IS_NULL(jerror))
435 ovs_stats_bridge_table_change_cb(jresult);
437 ERROR("%s: Error received from OvSDB. Table: Bridge", plugin_name);
441 /* Update port name */
442 static int ovs_stats_update_port(const char *uuid, yajl_val port) {
443 const char *new[] = {"new", NULL};
444 const char *name[] = {"name", NULL};
446 port_list_t *portentry = NULL;
447 if (port && YAJL_IS_OBJECT(port)) {
448 row = yajl_tree_get(port, new, yajl_t_object);
449 if (row && YAJL_IS_OBJECT(row)) {
450 yajl_val port_name = yajl_tree_get(row, name, yajl_t_string);
451 if (port_name && YAJL_IS_STRING(port_name)) {
452 portentry = ovs_stats_get_port(uuid);
453 if (portentry == NULL)
454 portentry = ovs_stats_new_port(NULL, uuid);
456 pthread_mutex_lock(&g_stats_lock);
457 sstrncpy(portentry->name, YAJL_GET_STRING(port_name),
458 sizeof(portentry->name));
459 pthread_mutex_unlock(&g_stats_lock);
464 ERROR("Incorrect JSON Port data");
470 /* Delete port from global port list */
471 static int ovs_stats_del_port(const char *uuid) {
472 port_list_t *prev_port = g_port_list_head;
473 for (port_list_t *port = g_port_list_head; port != NULL;
474 prev_port = port, port = port->next) {
475 if (strncmp(port->port_uuid, uuid, strlen(port->port_uuid)) == 0) {
476 if (port == g_port_list_head)
477 g_port_list_head = port->next;
479 prev_port->next = port->next;
487 /* Handle JSON with Port Table change event */
488 static void ovs_stats_port_table_change_cb(yajl_val jupdates) {
489 /* Port Table update example JSON data
492 "ab107d6f-28a1-4257-b1cc-5b742821db8a": {
497 "33a289a0-1d34-4e46-a3c2-3e4066fbecc6"
504 const char *path[] = {"Port", NULL};
505 yajl_val ports = yajl_tree_get(jupdates, path, yajl_t_object);
507 if (ports && YAJL_IS_OBJECT(ports)) {
508 for (int i = 0; i < YAJL_GET_OBJECT(ports)->len; i++) {
509 port = YAJL_GET_OBJECT(ports)->values[i];
510 ovs_stats_update_port(YAJL_GET_OBJECT(ports)->keys[i], port);
516 /* Handle JSON with Port table initial values */
517 static void ovs_stats_port_table_result_cb(yajl_val jresult, yajl_val jerror) {
518 if (YAJL_IS_NULL(jerror))
519 ovs_stats_port_table_change_cb(jresult);
521 ERROR("%s: Error received from OvSDB. Table: Port", plugin_name);
525 /* Handle Port Table delete event */
526 static void ovs_stats_port_table_delete_cb(yajl_val jupdates) {
527 const char *path[] = {"Port", NULL};
528 yajl_val ports = yajl_tree_get(jupdates, path, yajl_t_object);
529 pthread_mutex_lock(&g_stats_lock);
530 if (ports && YAJL_IS_OBJECT(ports))
531 for (int i = 0; i < YAJL_GET_OBJECT(ports)->len; i++) {
532 ovs_stats_del_port(YAJL_GET_OBJECT(ports)->keys[i]);
534 pthread_mutex_unlock(&g_stats_lock);
538 /* Update interface statistics */
539 static int ovs_stats_update_iface_stats(port_list_t *port, yajl_val stats) {
541 iface_counter counter_index = 0;
542 char *counter_name = NULL;
543 int64_t counter_value = 0;
544 if (stats && YAJL_IS_ARRAY(stats))
545 for (int i = 0; i < YAJL_GET_ARRAY(stats)->len; i++) {
546 stat = YAJL_GET_ARRAY(stats)->values[i];
547 counter_name = YAJL_GET_STRING(YAJL_GET_ARRAY(stat)->values[0]);
548 counter_index = ovs_stats_counter_name_to_type(counter_name);
549 counter_value = YAJL_GET_INTEGER(YAJL_GET_ARRAY(stat)->values[1]);
550 if (counter_index == not_supported)
552 port->stats[counter_index] = counter_value;
558 /* Update interface external_ids */
559 static int ovs_stats_update_iface_ext_ids(port_list_t *port, yajl_val ext_ids) {
564 if (ext_ids && YAJL_IS_ARRAY(ext_ids))
565 for (int i = 0; i < YAJL_GET_ARRAY(ext_ids)->len; i++) {
566 ext_id = YAJL_GET_ARRAY(ext_ids)->values[i];
567 key = YAJL_GET_STRING(YAJL_GET_ARRAY(ext_id)->values[0]);
568 value = YAJL_GET_STRING(YAJL_GET_ARRAY(ext_id)->values[1]);
570 if (strncmp(key, "iface-id", strlen(key)) == 0)
571 sstrncpy(port->ex_iface_id, value, sizeof(port->ex_iface_id));
572 else if (strncmp(key, "vm-uuid", strlen(key)) == 0)
573 sstrncpy(port->ex_vm_id, value, sizeof(port->ex_vm_id));
580 /* Get interface statistic and external_ids */
581 static int ovs_stats_update_iface(yajl_val iface) {
583 port_list_t *port = NULL;
584 if (iface && YAJL_IS_OBJECT(iface)) {
585 row = ovs_utils_get_value_by_key(iface, "new");
586 if (row && YAJL_IS_OBJECT(row)) {
587 yajl_val iface_name = ovs_utils_get_value_by_key(row, "name");
588 yajl_val iface_stats = ovs_utils_get_value_by_key(row, "statistics");
589 yajl_val iface_ext_ids = ovs_utils_get_value_by_key(row, "external_ids");
590 yajl_val iface_uuid = ovs_utils_get_value_by_key(row, "_uuid");
591 if (iface_name && YAJL_IS_STRING(iface_name)) {
592 port = ovs_stats_get_port_by_name(YAJL_GET_STRING(iface_name));
613 Check that statistics is an array with 2 elements
615 if (iface_stats && YAJL_IS_ARRAY(iface_stats) &&
616 YAJL_GET_ARRAY(iface_stats)->len == 2)
617 ovs_stats_update_iface_stats(port,
618 YAJL_GET_ARRAY(iface_stats)->values[1]);
619 if (iface_ext_ids && YAJL_IS_ARRAY(iface_ext_ids))
620 ovs_stats_update_iface_ext_ids(
621 port, YAJL_GET_ARRAY(iface_ext_ids)->values[1]);
622 if (iface_uuid && YAJL_IS_ARRAY(iface_uuid) &&
623 YAJL_GET_ARRAY(iface_uuid)->len == 2)
624 sstrncpy(port->iface_uuid,
625 YAJL_GET_STRING(YAJL_GET_ARRAY(iface_uuid)->values[1]),
626 sizeof(port->iface_uuid));
629 ERROR("Incorrect JSON Port data");
635 /* Handle JSON with Interface Table change event */
636 static void ovs_stats_interface_table_change_cb(yajl_val jupdates) {
637 /* Interface Table update example JSON data
640 "33a289a0-1d34-4e46-a3c2-3e4066fbecc6": {
663 "33a289a0-1d34-4e46-a3c2-3e4066fbecc6"
674 "a61b7e2b-6951-488a-b4c6-6e91343960b2"
687 const char *path[] = {"Interface", NULL};
688 yajl_val ports = yajl_tree_get(jupdates, path, yajl_t_object);
689 pthread_mutex_lock(&g_stats_lock);
690 if (ports && YAJL_IS_OBJECT(ports))
691 for (int i = 0; i < YAJL_GET_OBJECT(ports)->len; i++)
692 ovs_stats_update_iface(YAJL_GET_OBJECT(ports)->values[i]);
693 pthread_mutex_unlock(&g_stats_lock);
697 /* Handle JSON with Interface table initial values */
698 static void ovs_stats_interface_table_result_cb(yajl_val jresult,
700 if (YAJL_IS_NULL(jerror))
701 ovs_stats_interface_table_change_cb(jresult);
703 ERROR("%s: Error received from OvSDB. Table: Interface", plugin_name);
707 /* Setup OVS DB table callbacks */
708 static void ovs_stats_initialize(ovs_db_t *pdb) {
709 const char *bridge_columns[] = {"name", "ports", NULL};
710 const char *port_columns[] = {"name", "interfaces", NULL};
711 const char *interface_columns[] = {"name", "statistics", "_uuid",
712 "external_ids", NULL};
714 /* subscribe to a tables */
715 ovs_db_table_cb_register(pdb, "Bridge", bridge_columns,
716 ovs_stats_bridge_table_change_cb,
717 ovs_stats_bridge_table_result_cb,
718 OVS_DB_TABLE_CB_FLAG_INITIAL |
719 OVS_DB_TABLE_CB_FLAG_INSERT |
720 OVS_DB_TABLE_CB_FLAG_MODIFY);
722 ovs_db_table_cb_register(pdb, "Bridge", bridge_columns,
723 ovs_stats_bridge_table_delete_cb, NULL,
724 OVS_DB_TABLE_CB_FLAG_DELETE);
726 ovs_db_table_cb_register(pdb, "Port", port_columns,
727 ovs_stats_port_table_change_cb,
728 ovs_stats_port_table_result_cb,
729 OVS_DB_TABLE_CB_FLAG_INITIAL |
730 OVS_DB_TABLE_CB_FLAG_INSERT |
731 OVS_DB_TABLE_CB_FLAG_MODIFY);
733 ovs_db_table_cb_register(pdb, "Port", port_columns,
734 ovs_stats_port_table_delete_cb, NULL,
735 OVS_DB_TABLE_CB_FLAG_DELETE);
737 ovs_db_table_cb_register(pdb, "Interface", interface_columns,
738 ovs_stats_interface_table_change_cb,
739 ovs_stats_interface_table_result_cb,
740 OVS_DB_TABLE_CB_FLAG_INITIAL |
741 OVS_DB_TABLE_CB_FLAG_INSERT |
742 OVS_DB_TABLE_CB_FLAG_MODIFY);
745 /* Check if bridge is configured to be monitored in config file */
746 static int ovs_stats_is_monitored_bridge(const char *br_name) {
747 /* if no bridges are configured, return true */
748 if (g_monitored_bridge_list_head == NULL)
751 /* check if given bridge exists */
752 if (ovs_stats_get_bridge(g_monitored_bridge_list_head, br_name) != NULL)
758 /* Delete all ports from port list */
759 static void ovs_stats_free_port_list(port_list_t *head) {
760 for (port_list_t *i = head; i != NULL;) {
761 port_list_t *del = i;
767 /* Delete all bridges from bridge list */
768 static void ovs_stats_free_bridge_list(bridge_list_t *head) {
769 for (bridge_list_t *i = head; i != NULL;) {
770 bridge_list_t *del = i;
777 /* Handle OVSDB lost connection callback */
778 static void ovs_stats_conn_terminate() {
779 WARNING("Lost connection to OVSDB server");
780 pthread_mutex_lock(&g_stats_lock);
781 ovs_stats_free_bridge_list(g_bridge_list_head);
782 g_bridge_list_head = NULL;
783 ovs_stats_free_port_list(g_port_list_head);
784 g_port_list_head = NULL;
785 pthread_mutex_unlock(&g_stats_lock);
788 /* Parse plugin configuration file and store the config
789 * in allocated memory. Returns negative value in case of error.
791 static int ovs_stats_plugin_config(oconfig_item_t *ci) {
792 bridge_list_t *bridge;
795 for (int i = 0; i < ci->children_num; i++) {
796 oconfig_item_t *child = ci->children + i;
797 if (strcasecmp("Address", child->key) == 0) {
798 if (cf_util_get_string_buffer(child, ovs_stats_cfg.ovs_db_node,
799 OVS_DB_ADDR_NODE_SIZE) != 0) {
800 ERROR("%s: parse '%s' option failed", plugin_name, child->key);
803 } else if (strcasecmp("Port", child->key) == 0) {
804 if (cf_util_get_string_buffer(child, ovs_stats_cfg.ovs_db_serv,
805 OVS_DB_ADDR_SERVICE_SIZE) != 0) {
806 ERROR("%s: parse '%s' option failed", plugin_name, child->key);
809 } else if (strcasecmp("Socket", child->key) == 0) {
810 if (cf_util_get_string_buffer(child, ovs_stats_cfg.ovs_db_unix,
811 OVS_DB_ADDR_UNIX_SIZE) != 0) {
812 ERROR("%s: parse '%s' option failed", plugin_name, child->key);
815 } else if (strcasecmp("Bridges", child->key) == 0) {
816 for (int j = 0; j < child->values_num; j++) {
817 /* check value type */
818 if (child->values[j].type != OCONFIG_TYPE_STRING) {
819 ERROR("%s: Wrong bridge name [idx=%d]. "
820 "Bridge name should be string",
825 if ((br_name = strdup(child->values[j].value.string)) == NULL) {
826 ERROR("%s: strdup() copy bridge name fail", plugin_name);
829 if ((bridge = ovs_stats_get_bridge(g_monitored_bridge_list_head,
831 if ((bridge = calloc(1, sizeof(bridge_list_t))) == NULL) {
832 ERROR("%s: Error allocating memory for bridge", plugin_name);
835 pthread_mutex_lock(&g_stats_lock);
836 /* store bridge name */
837 bridge->name = br_name;
838 bridge->next = g_monitored_bridge_list_head;
839 g_monitored_bridge_list_head = bridge;
840 pthread_mutex_unlock(&g_stats_lock);
841 DEBUG("%s: found monitored interface \"%s\"", plugin_name, br_name);
846 WARNING("%s: option '%s' not allowed here", plugin_name, child->key);
853 ovs_stats_free_bridge_list(g_monitored_bridge_list_head);
857 /* Initialize OvS Stats plugin*/
858 static int ovs_stats_plugin_init(void) {
859 ovs_db_callback_t cb = {.post_conn_init = ovs_stats_initialize,
860 .post_conn_terminate = ovs_stats_conn_terminate};
862 INFO("%s: Connecting to OVS DB using address=%s, service=%s, unix=%s",
863 plugin_name, ovs_stats_cfg.ovs_db_node, ovs_stats_cfg.ovs_db_serv,
864 ovs_stats_cfg.ovs_db_unix);
865 /* connect to OvS DB */
866 if ((g_ovs_db = ovs_db_init (ovs_stats_cfg.ovs_db_node,
867 ovs_stats_cfg.ovs_db_serv,
868 ovs_stats_cfg.ovs_db_unix, &cb)) == NULL) {
869 ERROR("%s: plugin: failed to connect to OvS DB server", plugin_name);
872 int err = pthread_mutex_init(&g_stats_lock, NULL);
874 ERROR("%s: plugin: failed to initialize cache lock", plugin_name);
875 ovs_db_destroy(g_ovs_db);
881 /* OvS stats read callback. Read bridge/port information and submit it*/
882 static int ovs_stats_plugin_read(__attribute__((unused)) user_data_t *ud) {
883 bridge_list_t *bridge;
885 char devname[PORT_NAME_SIZE_MAX];
887 pthread_mutex_lock(&g_stats_lock);
888 for (bridge = g_bridge_list_head; bridge != NULL; bridge = bridge->next) {
889 if (ovs_stats_is_monitored_bridge(bridge->name)) {
890 for (port = g_port_list_head; port != NULL; port = port->next)
891 if (port->br == bridge) {
892 if (strlen(port->name) == 0)
893 /* Skip port w/o name. This is possible when read callback
894 * is called after Interface Table update callback but before
895 * Port table Update callback. Will add this port on next read */
897 meta_data_t *meta = meta_data_create();
899 meta_data_add_string(meta, "uuid", port->iface_uuid);
900 if (strlen(port->ex_vm_id))
901 meta_data_add_string(meta, "vm-uuid", port->ex_vm_id);
902 if (strlen(port->ex_iface_id))
903 meta_data_add_string(meta, "iface-id", port->ex_iface_id);
905 snprintf(devname, sizeof(devname), "%s.%s", bridge->name, port->name);
906 ovs_stats_submit_one(devname, "if_collisions", NULL,
907 port->stats[collisions], meta);
908 ovs_stats_submit_two(devname, "if_dropped", NULL,
909 port->stats[rx_dropped], port->stats[tx_dropped],
911 ovs_stats_submit_two(devname, "if_errors", NULL,
912 port->stats[rx_errors], port->stats[tx_errors],
914 ovs_stats_submit_two(devname, "if_packets", NULL,
915 port->stats[rx_packets], port->stats[tx_packets],
917 ovs_stats_submit_one(devname, "if_rx_errors", "crc",
918 port->stats[rx_crc_err], meta);
919 ovs_stats_submit_one(devname, "if_rx_errors", "frame",
920 port->stats[rx_frame_err], meta);
921 ovs_stats_submit_one(devname, "if_rx_errors", "over",
922 port->stats[rx_over_err], meta);
923 ovs_stats_submit_one(devname, "if_rx_octets", NULL,
924 port->stats[rx_bytes], meta);
925 ovs_stats_submit_one(devname, "if_tx_octets", NULL,
926 port->stats[tx_bytes], meta);
927 ovs_stats_submit_two(devname, "if_packets", "1_to_64_packets",
928 port->stats[rx_1_to_64_packets],
929 port->stats[tx_1_to_64_packets], meta);
930 ovs_stats_submit_two(devname, "if_packets", "65_to_127_packets",
931 port->stats[rx_65_to_127_packets],
932 port->stats[tx_65_to_127_packets], meta);
933 ovs_stats_submit_two(devname, "if_packets", "128_to_255_packets",
934 port->stats[rx_128_to_255_packets],
935 port->stats[tx_128_to_255_packets], meta);
936 ovs_stats_submit_two(devname, "if_packets", "256_to_511_packets",
937 port->stats[rx_256_to_511_packets],
938 port->stats[tx_256_to_511_packets], meta);
939 ovs_stats_submit_two(devname, "if_packets", "512_to_1023_packets",
940 port->stats[rx_512_to_1023_packets],
941 port->stats[tx_512_to_1023_packets], meta);
942 ovs_stats_submit_two(devname, "if_packets", "1024_to_1518_packets",
943 port->stats[rx_1024_to_1522_packets],
944 port->stats[tx_1024_to_1522_packets], meta);
945 ovs_stats_submit_two(devname, "if_packets", "1523_to_max_packets",
946 port->stats[rx_1523_to_max_packets],
947 port->stats[tx_1523_to_max_packets], meta);
948 ovs_stats_submit_two(devname, "if_packets", "broadcast_packets",
949 port->stats[rx_broadcast_packets],
950 port->stats[tx_broadcast_packets], meta);
951 ovs_stats_submit_one(devname, "if_multicast", "tx_multicast_packets",
952 port->stats[tx_multicast_packets], meta);
953 ovs_stats_submit_one(devname, "if_rx_errors", "rx_undersized_errors",
954 port->stats[rx_undersized_errors], meta);
955 ovs_stats_submit_one(devname, "if_rx_errors", "rx_oversize_errors",
956 port->stats[rx_oversize_errors], meta);
957 ovs_stats_submit_one(devname, "if_rx_errors", "rx_fragmented_errors",
958 port->stats[rx_fragmented_errors], meta);
959 ovs_stats_submit_one(devname, "if_rx_errors", "rx_jabber_errors",
960 port->stats[rx_jabber_errors], meta);
962 meta_data_destroy(meta);
967 pthread_mutex_unlock(&g_stats_lock);
971 /* Shutdown OvS Stats plugin */
972 static int ovs_stats_plugin_shutdown(void) {
973 pthread_mutex_lock(&g_stats_lock);
974 DEBUG("OvS Statistics plugin shutting down");
975 ovs_db_destroy(g_ovs_db);
976 ovs_stats_free_bridge_list(g_bridge_list_head);
977 ovs_stats_free_bridge_list(g_monitored_bridge_list_head);
978 ovs_stats_free_port_list(g_port_list_head);
979 pthread_mutex_unlock(&g_stats_lock);
980 pthread_mutex_destroy(&g_stats_lock);
984 /* Register OvS Stats plugin callbacks */
985 void module_register(void) {
986 plugin_register_complex_config(plugin_name, ovs_stats_plugin_config);
987 plugin_register_init(plugin_name, ovs_stats_plugin_init);
988 plugin_register_complex_read(NULL, plugin_name, ovs_stats_plugin_read, 0,
990 plugin_register_shutdown(plugin_name, ovs_stats_plugin_shutdown);