#include "collectd.h"
-#include "plugin.h"
#include "common.h"
+#include "plugin.h"
#if HAVE_ARPA_INET_H
+#include <arpa/inet.h>
#endif /* HAVE_ARPA_INET_H */
#if HAVE_NETINET_IN_H
-# include <netinet/in.h>
+#include <netinet/in.h>
#endif /* HAVE_NETINET_IN_H */
-/* this can probably only be found in the kernel sources */
-#if HAVE_LINUX_IP_VS_H
-# include <linux/ip_vs.h>
-#elif HAVE_NET_IP_VS_H
-# include <net/ip_vs.h>
-#elif HAVE_IP_VS_H
-# include <ip_vs.h>
-#endif /* HAVE_IP_VS_H */
+#include <linux/ip_vs.h>
-#define log_err(...) ERROR ("ipvs: " __VA_ARGS__)
-#define log_info(...) INFO ("ipvs: " __VA_ARGS__)
+#define log_err(...) ERROR("ipvs: " __VA_ARGS__)
+#define log_info(...) INFO("ipvs: " __VA_ARGS__)
/*
* private variables
/*
* libipvs API
*/
-static struct ip_vs_get_services *ipvs_get_services (void)
-{
- struct ip_vs_getinfo ipvs_info;
- struct ip_vs_get_services *ret;
-
- socklen_t len;
-
- len = sizeof (ipvs_info);
-
- if (0 != getsockopt (sockfd, IPPROTO_IP, IP_VS_SO_GET_INFO,
- (void *)&ipvs_info, &len)) {
- char errbuf[1024];
- log_err ("ip_vs_get_services: getsockopt() failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return NULL;
- }
-
- len = sizeof (*ret) +
- sizeof (struct ip_vs_service_entry) * ipvs_info.num_services;
-
- if (NULL == (ret = malloc (len))) {
- log_err ("ipvs_get_services: Out of memory.");
- exit (3);
- }
-
- ret->num_services = ipvs_info.num_services;
-
- if (0 != getsockopt (sockfd, IPPROTO_IP, IP_VS_SO_GET_SERVICES,
- (void *)ret, &len)) {
- char errbuf[1024];
- log_err ("ipvs_get_services: getsockopt failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
-
- free(ret);
- return NULL;
- }
- return ret;
+static struct ip_vs_get_services *ipvs_get_services(void) {
+ struct ip_vs_getinfo ipvs_info;
+ struct ip_vs_get_services *services;
+
+ socklen_t len = sizeof(ipvs_info);
+
+ if (getsockopt(sockfd, IPPROTO_IP, IP_VS_SO_GET_INFO, &ipvs_info, &len) ==
+ -1) {
+ char errbuf[1024];
+ log_err("ip_vs_get_services: getsockopt() failed: %s",
+ sstrerror(errno, errbuf, sizeof(errbuf)));
+ return NULL;
+ }
+
+ len = sizeof(*services) +
+ sizeof(struct ip_vs_service_entry) * ipvs_info.num_services;
+
+ services = malloc(len);
+ if (services == NULL) {
+ log_err("ipvs_get_services: Out of memory.");
+ return NULL;
+ }
+
+ services->num_services = ipvs_info.num_services;
+
+ if (getsockopt(sockfd, IPPROTO_IP, IP_VS_SO_GET_SERVICES, services, &len) ==
+ -1) {
+ char errbuf[1024];
+ log_err("ipvs_get_services: getsockopt failed: %s",
+ sstrerror(errno, errbuf, sizeof(errbuf)));
+
+ free(services);
+ return NULL;
+ }
+ return services;
} /* ipvs_get_services */
-static struct ip_vs_get_dests *ipvs_get_dests (struct ip_vs_service_entry *se)
-{
- struct ip_vs_get_dests *ret;
- socklen_t len;
-
- len = sizeof (*ret) + sizeof (struct ip_vs_dest_entry) * se->num_dests;
-
- if (NULL == (ret = malloc (len))) {
- log_err ("ipvs_get_dests: Out of memory.");
- exit (3);
- }
-
- ret->fwmark = se->fwmark;
- ret->protocol = se->protocol;
- ret->addr = se->addr;
- ret->port = se->port;
- ret->num_dests = se->num_dests;
-
- if (0 != getsockopt (sockfd, IPPROTO_IP, IP_VS_SO_GET_DESTS,
- (void *)ret, &len)) {
- char errbuf[1024];
- log_err ("ipvs_get_dests: getsockopt() failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- free (ret);
- return NULL;
- }
- return ret;
+static struct ip_vs_get_dests *ipvs_get_dests(struct ip_vs_service_entry *se) {
+ struct ip_vs_get_dests *dests;
+
+ socklen_t len =
+ sizeof(*dests) + sizeof(struct ip_vs_dest_entry) * se->num_dests;
+
+ dests = malloc(len);
+ if (dests == NULL) {
+ log_err("ipvs_get_dests: Out of memory.");
+ return NULL;
+ }
+
+ dests->fwmark = se->fwmark;
+ dests->protocol = se->protocol;
+ dests->addr = se->addr;
+ dests->port = se->port;
+ dests->num_dests = se->num_dests;
+
+ if (getsockopt(sockfd, IPPROTO_IP, IP_VS_SO_GET_DESTS, dests, &len) == -1) {
+ char errbuf[1024];
+ log_err("ipvs_get_dests: getsockopt() failed: %s",
+ sstrerror(errno, errbuf, sizeof(errbuf)));
+ free(dests);
+ return NULL;
+ }
+ return dests;
} /* ip_vs_get_dests */
/*
* collectd plugin API and helper functions
*/
-static int cipvs_init (void)
-{
- struct ip_vs_getinfo ipvs_info;
-
- socklen_t len;
-
- if (-1 == (sockfd = socket (AF_INET, SOCK_RAW, IPPROTO_RAW))) {
- char errbuf[1024];
- log_err ("cipvs_init: socket() failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- return -1;
- }
-
- len = sizeof (ipvs_info);
-
- if (0 != getsockopt (sockfd, IPPROTO_IP, IP_VS_SO_GET_INFO,
- (void *)&ipvs_info, &len)) {
- char errbuf[1024];
- log_err ("cipvs_init: getsockopt() failed: %s",
- sstrerror (errno, errbuf, sizeof (errbuf)));
- close (sockfd);
- sockfd = -1;
- return -1;
- }
-
- /* we need IPVS >= 1.1.4 */
- if (ipvs_info.version < ((1 << 16) + (1 << 8) + 4)) {
- log_err ("cipvs_init: IPVS version too old (%d.%d.%d < %d.%d.%d)",
- NVERSION (ipvs_info.version), 1, 1, 4);
- close (sockfd);
- sockfd = -1;
- return -1;
- }
- else {
- log_info ("Successfully connected to IPVS %d.%d.%d",
- NVERSION (ipvs_info.version));
- }
- return 0;
+static int cipvs_init(void) {
+ struct ip_vs_getinfo ipvs_info;
+
+ if ((sockfd = socket(AF_INET, SOCK_RAW, IPPROTO_RAW)) == -1) {
+ char errbuf[1024];
+ log_err("cipvs_init: socket() failed: %s",
+ sstrerror(errno, errbuf, sizeof(errbuf)));
+ return -1;
+ }
+
+ socklen_t len = sizeof(ipvs_info);
+
+ if (getsockopt(sockfd, IPPROTO_IP, IP_VS_SO_GET_INFO, &ipvs_info, &len) ==
+ -1) {
+ char errbuf[1024];
+ log_err("cipvs_init: getsockopt() failed: %s",
+ sstrerror(errno, errbuf, sizeof(errbuf)));
+ close(sockfd);
+ sockfd = -1;
+ return -1;
+ }
+
+ /* we need IPVS >= 1.1.4 */
+ if (ipvs_info.version < ((1 << 16) + (1 << 8) + 4)) {
+ log_err("cipvs_init: IPVS version too old (%d.%d.%d < %d.%d.%d)",
+ NVERSION(ipvs_info.version), 1, 1, 4);
+ close(sockfd);
+ sockfd = -1;
+ return -1;
+ } else {
+ log_info("Successfully connected to IPVS %d.%d.%d",
+ NVERSION(ipvs_info.version));
+ }
+ return 0;
} /* cipvs_init */
/*
*/
/* plugin instance */
-static int get_pi (struct ip_vs_service_entry *se, char *pi, size_t size)
-{
- struct in_addr addr;
- int len = 0;
-
- if ((NULL == se) || (NULL == pi))
- return 0;
-
- addr.s_addr = se->addr;
-
- /* inet_ntoa() returns a pointer to a statically allocated buffer
- * I hope non-glibc systems behave the same */
- len = ssnprintf (pi, size, "%s_%s%u", inet_ntoa (addr),
- (se->protocol == IPPROTO_TCP) ? "TCP" : "UDP",
- ntohs (se->port));
-
- if ((0 > len) || (size <= ((size_t) len))) {
- log_err ("plugin instance truncated: %s", pi);
- return -1;
- }
- return 0;
+static int get_pi(struct ip_vs_service_entry *se, char *pi, size_t size) {
+ if ((se == NULL) || (pi == NULL))
+ return 0;
+
+ struct in_addr addr = {.s_addr = se->addr};
+
+ int len =
+ snprintf(pi, size, "%s_%s%u", inet_ntoa(addr),
+ (se->protocol == IPPROTO_TCP) ? "TCP" : "UDP", ntohs(se->port));
+
+ if ((len < 0) || (size <= ((size_t)len))) {
+ log_err("plugin instance truncated: %s", pi);
+ return -1;
+ }
+ return 0;
} /* get_pi */
/* type instance */
-static int get_ti (struct ip_vs_dest_entry *de, char *ti, size_t size)
-{
- struct in_addr addr;
- int len = 0;
-
- if ((NULL == de) || (NULL == ti))
- return 0;
-
- addr.s_addr = de->addr;
-
- /* inet_ntoa() returns a pointer to a statically allocated buffer
- * I hope non-glibc systems behave the same */
- len = ssnprintf (ti, size, "%s_%u", inet_ntoa (addr),
- ntohs (de->port));
-
- if ((0 > len) || (size <= ((size_t) len))) {
- log_err ("type instance truncated: %s", ti);
- return -1;
- }
- return 0;
+static int get_ti(struct ip_vs_dest_entry *de, char *ti, size_t size) {
+ if ((de == NULL) || (ti == NULL))
+ return 0;
+
+ struct in_addr addr = {.s_addr = de->addr};
+
+ int len = snprintf(ti, size, "%s_%u", inet_ntoa(addr), ntohs(de->port));
+
+ if ((len < 0) || (size <= ((size_t)len))) {
+ log_err("type instance truncated: %s", ti);
+ return -1;
+ }
+ return 0;
} /* get_ti */
-static void cipvs_submit_connections (const char *pi, const char *ti,
- derive_t value)
-{
- value_list_t vl = VALUE_LIST_INIT;
+static void cipvs_submit_connections(const char *pi, const char *ti,
+ derive_t value) {
+ value_list_t vl = VALUE_LIST_INIT;
- vl.values = &(value_t) { .derive = value };
- vl.values_len = 1;
+ vl.values = &(value_t){.derive = value};
+ vl.values_len = 1;
- sstrncpy (vl.plugin, "ipvs", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, pi, sizeof (vl.plugin_instance));
- sstrncpy (vl.type, "connections", sizeof (vl.type));
- sstrncpy (vl.type_instance, (NULL != ti) ? ti : "total",
- sizeof (vl.type_instance));
+ sstrncpy(vl.plugin, "ipvs", sizeof(vl.plugin));
+ sstrncpy(vl.plugin_instance, pi, sizeof(vl.plugin_instance));
+ sstrncpy(vl.type, "connections", sizeof(vl.type));
+ sstrncpy(vl.type_instance, (ti != NULL) ? ti : "total",
+ sizeof(vl.type_instance));
- plugin_dispatch_values (&vl);
- return;
+ plugin_dispatch_values(&vl);
} /* cipvs_submit_connections */
-static void cipvs_submit_if (const char *pi, const char *t, const char *ti,
- derive_t rx, derive_t tx)
-{
- value_t values[] = {
- { .derive = rx },
- { .derive = tx },
- };
- value_list_t vl = VALUE_LIST_INIT;
-
- vl.values = values;
- vl.values_len = STATIC_ARRAY_SIZE (values);
-
- sstrncpy (vl.plugin, "ipvs", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, pi, sizeof (vl.plugin_instance));
- sstrncpy (vl.type, t, sizeof (vl.type));
- sstrncpy (vl.type_instance, (NULL != ti) ? ti : "total",
- sizeof (vl.type_instance));
-
- plugin_dispatch_values (&vl);
- return;
+static void cipvs_submit_if(const char *pi, const char *t, const char *ti,
+ derive_t rx, derive_t tx) {
+ value_t values[] = {
+ {.derive = rx}, {.derive = tx},
+ };
+ value_list_t vl = VALUE_LIST_INIT;
+
+ vl.values = values;
+ vl.values_len = STATIC_ARRAY_SIZE(values);
+
+ sstrncpy(vl.plugin, "ipvs", sizeof(vl.plugin));
+ sstrncpy(vl.plugin_instance, pi, sizeof(vl.plugin_instance));
+ sstrncpy(vl.type, t, sizeof(vl.type));
+ sstrncpy(vl.type_instance, (ti != NULL) ? ti : "total",
+ sizeof(vl.type_instance));
+
+ plugin_dispatch_values(&vl);
} /* cipvs_submit_if */
-static void cipvs_submit_dest (const char *pi, struct ip_vs_dest_entry *de)
-{
- struct ip_vs_stats_user stats = de->stats;
+static void cipvs_submit_dest(const char *pi, struct ip_vs_dest_entry *de) {
+ struct ip_vs_stats_user stats = de->stats;
- char ti[DATA_MAX_NAME_LEN];
+ char ti[DATA_MAX_NAME_LEN];
- if (0 != get_ti (de, ti, sizeof (ti)))
- return;
+ if (get_ti(de, ti, sizeof(ti)) != 0)
+ return;
- cipvs_submit_connections (pi, ti, stats.conns);
- cipvs_submit_if (pi, "if_packets", ti, stats.inpkts, stats.outpkts);
- cipvs_submit_if (pi, "if_octets", ti, stats.inbytes, stats.outbytes);
- return;
+ cipvs_submit_connections(pi, ti, stats.conns);
+ cipvs_submit_if(pi, "if_packets", ti, stats.inpkts, stats.outpkts);
+ cipvs_submit_if(pi, "if_octets", ti, stats.inbytes, stats.outbytes);
} /* cipvs_submit_dest */
-static void cipvs_submit_service (struct ip_vs_service_entry *se)
-{
- struct ip_vs_stats_user stats = se->stats;
- struct ip_vs_get_dests *dests = ipvs_get_dests (se);
+static void cipvs_submit_service(struct ip_vs_service_entry *se) {
+ struct ip_vs_stats_user stats = se->stats;
+ struct ip_vs_get_dests *dests = ipvs_get_dests(se);
- char pi[DATA_MAX_NAME_LEN];
+ char pi[DATA_MAX_NAME_LEN];
- if (0 != get_pi (se, pi, sizeof (pi)))
- {
- free (dests);
- return;
- }
+ if (get_pi(se, pi, sizeof(pi)) != 0) {
+ free(dests);
+ return;
+ }
- cipvs_submit_connections (pi, NULL, stats.conns);
- cipvs_submit_if (pi, "if_packets", NULL, stats.inpkts, stats.outpkts);
- cipvs_submit_if (pi, "if_octets", NULL, stats.inbytes, stats.outbytes);
+ cipvs_submit_connections(pi, NULL, stats.conns);
+ cipvs_submit_if(pi, "if_packets", NULL, stats.inpkts, stats.outpkts);
+ cipvs_submit_if(pi, "if_octets", NULL, stats.inbytes, stats.outbytes);
- for (size_t i = 0; i < dests->num_dests; ++i)
- cipvs_submit_dest (pi, &dests->entrytable[i]);
+ for (size_t i = 0; i < dests->num_dests; ++i)
+ cipvs_submit_dest(pi, &dests->entrytable[i]);
- free (dests);
- return;
+ free(dests);
+ return;
} /* cipvs_submit_service */
-static int cipvs_read (void)
-{
- struct ip_vs_get_services *services = NULL;
-
- if (sockfd < 0)
- return (-1);
+static int cipvs_read(void) {
+ if (sockfd < 0)
+ return -1;
- if (NULL == (services = ipvs_get_services ()))
- return -1;
+ struct ip_vs_get_services *services = ipvs_get_services();
+ if (services == NULL)
+ return -1;
- for (size_t i = 0; i < services->num_services; ++i)
- cipvs_submit_service (&services->entrytable[i]);
+ for (size_t i = 0; i < services->num_services; ++i)
+ cipvs_submit_service(&services->entrytable[i]);
- free (services);
- return 0;
+ free(services);
+ return 0;
} /* cipvs_read */
-static int cipvs_shutdown (void)
-{
- if (sockfd >= 0)
- close (sockfd);
- sockfd = -1;
+static int cipvs_shutdown(void) {
+ if (sockfd >= 0)
+ close(sockfd);
+ sockfd = -1;
- return 0;
+ return 0;
} /* cipvs_shutdown */
-void module_register (void)
-{
- plugin_register_init ("ipvs", cipvs_init);
- plugin_register_read ("ipvs", cipvs_read);
- plugin_register_shutdown ("ipvs", cipvs_shutdown);
- return;
+void module_register(void) {
+ plugin_register_init("ipvs", cipvs_init);
+ plugin_register_read("ipvs", cipvs_read);
+ plugin_register_shutdown("ipvs", cipvs_shutdown);
+ return;
} /* module_register */
-
-/* vim: set sw=4 ts=4 tw=78 noexpandtab : */
projects / collectd.git / blobdiff