#include "common.h"
#include "plugin.h"
#include "configfile.h"
-#include "ethstat.h"
-#include <sys/ioctl.h>
-#include <net/if.h>
-#include <linux/sockios.h>
+#if HAVE_SYS_IOCTL_H
+# include <sys/ioctl.h>
+#endif
+#if HAVE_NET_IF_H
+# include <net/if.h>
+#endif
+#if HAVE_LINUX_SOCKIOS_H
+# include <linux/sockios.h>
+#endif
+#if HAVE_LINUX_ETHTOOL_H
+# include <linux/ethtool.h>
+#endif
+
+static const char *config_keys[] =
+{
+ "Interface"
+};
+static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+
+static char **interfaces = NULL;
+static size_t interfaces_num = 0;
static int ethstat_config (const char *key, const char *value)
{
- if (strcasecmp ("Iface", key) == 0)
+ if (strcasecmp ("Interface", key) == 0)
{
char **tmp;
- tmp = realloc (ifacelist,
- sizeof (*ifacelist) * (ifacenumber + 1));
+ tmp = realloc (interfaces,
+ sizeof (*interfaces) * (interfaces_num + 1));
if (tmp == NULL)
return (-1);
- ifacelist = tmp;
+ interfaces = tmp;
- ifacelist[ifacenumber] = strdup (value);
- if (ifacelist[ifacenumber] == NULL)
+ interfaces[interfaces_num] = strdup (value);
+ if (interfaces[interfaces_num] == NULL)
{
ERROR ("ethstat plugin: strdup() failed.");
return (-1);
}
- ifacenumber++;
+ interfaces_num++;
INFO("ethstat plugin: Registred interface %s", value);
}
return (0);
}
-static void ethstat_submit_value (char *devname, char *counter, unsigned long long value)
+static void ethstat_submit_value (const char *device,
+ const char *type_instance, derive_t value)
{
value_t values[1];
value_list_t vl = VALUE_LIST_INIT;
- values[0].counter = value;
-
+ values[0].derive = value;
vl.values = values;
vl.values_len = 1;
+
sstrncpy (vl.host, hostname_g, sizeof (vl.host));
sstrncpy (vl.plugin, "ethstat", sizeof (vl.plugin));
- sstrncpy (vl.plugin_instance, devname, sizeof (vl.plugin_instance));
+ sstrncpy (vl.plugin_instance, device, sizeof (vl.plugin_instance));
sstrncpy (vl.type, "derive", sizeof (vl.type));
- sstrncpy (vl.type_instance, counter, sizeof (vl.type_instance));
+ sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
plugin_dispatch_values (&vl);
}
-
-static int getstats(char *devname, struct ifreq *ifr) {
+static int ethstat_read_interface (char *device)
+{
int fd;
+ struct ifreq req;
struct ethtool_drvinfo drvinfo;
struct ethtool_gstrings *strings;
struct ethtool_stats *stats;
- unsigned int n_stats, sz_str, sz_stats, i;
- int err;
+ size_t n_stats;
+ size_t strings_size;
+ size_t stats_size;
+ size_t i;
+ int status;
+ memset (&req, 0, sizeof (req));
+ sstrncpy(req.ifr_name, device, sizeof (req.ifr_name));
- fd = socket(AF_INET, SOCK_DGRAM, 0);
- if (fd < 0) {
- ERROR("ethstat - %s : Cannot get control socket", devname);
- return 1;
- }
+ fd = socket(AF_INET, SOCK_DGRAM, /* protocol = */ 0);
+ if (fd < 0)
+ {
+ char errbuf[1024];
+ ERROR("ethstat plugin: Failed to open control socket: %s",
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return 1;
+ }
+ memset (&drvinfo, 0, sizeof (drvinfo));
drvinfo.cmd = ETHTOOL_GDRVINFO;
- ifr->ifr_data = (caddr_t)&drvinfo;
- err = ioctl(fd, SIOCETHTOOL, ifr);
- if (err < 0) {
- ERROR("ethstat - %s : Cannot get driver information", devname);
- return 1;
+ req.ifr_data = (void *) &drvinfo;
+ status = ioctl (fd, SIOCETHTOOL, &req);
+ if (status < 0)
+ {
+ char errbuf[1024];
+ close (fd);
+ ERROR ("ethstat plugin: Failed to get driver information "
+ "from %s: %s", device,
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
}
-
- n_stats = drvinfo.n_stats;
- if (n_stats < 1) {
- ERROR("ethstat - %s : No stats available", devname);
- return 1;
+ n_stats = (size_t) drvinfo.n_stats;
+ if (n_stats < 1)
+ {
+ close (fd);
+ ERROR("ethstat plugin: No stats available for %s", device);
+ return (-1);
}
- sz_str = n_stats * ETH_GSTRING_LEN;
- sz_stats = n_stats * sizeof(u64);
+ strings_size = sizeof (struct ethtool_gstrings)
+ + (n_stats * ETH_GSTRING_LEN);
+ stats_size = sizeof (struct ethtool_stats)
+ + (n_stats * sizeof (uint64_t));
- strings = calloc(1, sz_str + sizeof(struct ethtool_gstrings));
- stats = calloc(1, sz_stats + sizeof(struct ethtool_stats));
- if (!strings || !stats) {
- ERROR("ethstat - %s No memory available", devname);
- return 1;
+ strings = malloc (strings_size);
+ stats = malloc (stats_size);
+ if ((strings == NULL) || (stats == NULL))
+ {
+ close (fd);
+ sfree (strings);
+ sfree (stats);
+ ERROR("ethstat plugin: malloc(3) failed.");
+ return (-1);
}
strings->cmd = ETHTOOL_GSTRINGS;
strings->string_set = ETH_SS_STATS;
strings->len = n_stats;
- ifr->ifr_data = (caddr_t) strings;
- err = ioctl(fd, SIOCETHTOOL, ifr);
- if (err < 0) {
- ERROR("ethstat - %s : Cannot get stats strings information", devname);
- free(strings);
- free(stats);
- return 96;
+ req.ifr_data = (void *) strings;
+ status = ioctl (fd, SIOCETHTOOL, &req);
+ if (status < 0)
+ {
+ char errbuf[1024];
+ close (fd);
+ free (strings);
+ free (stats);
+ ERROR ("ethstat plugin: Cannot get strings from %s: %s",
+ device,
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
}
stats->cmd = ETHTOOL_GSTATS;
stats->n_stats = n_stats;
- ifr->ifr_data = (caddr_t) stats;
- err = ioctl(fd, SIOCETHTOOL, ifr);
- if (err < 0) {
- ERROR("ethstat - %s : Cannot get stats information", devname);
- free(strings);
- free(stats);
- return 97;
- }
+ req.ifr_data = (void *) stats;
+ status = ioctl (fd, SIOCETHTOOL, &req);
+ if (status < 0)
+ {
+ char errbuf[1024];
+ close (fd);
+ free(strings);
+ free(stats);
+ ERROR("ethstat plugin: Reading statistics from %s failed: %s",
+ device,
+ sstrerror (errno, errbuf, sizeof (errbuf)));
+ return (-1);
+ }
- for (i = 0; i < n_stats; i++) {
- DEBUG("ethstat - %s : %s: %llu",
- devname,
- &strings->data[i * ETH_GSTRING_LEN],
- stats->data[i]);
- ethstat_submit_value (
- devname,
- (char*)&strings->data[i * ETH_GSTRING_LEN],
- stats->data[i]);
+ for (i = 0; i < n_stats; i++)
+ {
+ const char *stat_name;
+
+ stat_name = (void *) &strings->data[i * ETH_GSTRING_LEN],
+ DEBUG("ethstat plugin: device = \"%s\": %s = %"PRIu64,
+ device, stat_name,
+ (uint64_t) stats->data[i]);
+ ethstat_submit_value (device,
+ stat_name, (derive_t) stats->data[i]);
}
- free(strings);
- free(stats);
- return 0;
-}
+ close (fd);
+ sfree (strings);
+ sfree (stats);
+
+ return (0);
+} /* }}} ethstat_read_interface */
static int ethstat_read(void)
{
- struct ifreq ifr;
- int i;
-
- for (i = 0 ; i < ifacenumber ; i++) {
- DEBUG("ethstat - Processing : %s\n", ifacelist[i]);
- memset(&ifr, 0, sizeof(ifr));
- sstrncpy(ifr.ifr_name, ifacelist[i], sizeof (ifr.ifr_name));
- getstats(ifacelist[i], &ifr);
- }
+ size_t i;
+
+ for (i = 0; i < interfaces_num; i++)
+ ethstat_read_interface (interfaces[i]);
+
return 0;
}
projects / collectd.git / blobdiff