*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* Authors:
* Tomasz Pala <gotar at pld-linux.org>
* based on entropy.c by:
- * Florian octo Forster <octo at verplant.org>
+ * Florian octo Forster <octo at collectd.org>
**/
#include "collectd.h"
#endif
#define CONNTRACK_FILE "/proc/sys/net/netfilter/nf_conntrack_count"
+#define CONNTRACK_MAX_FILE "/proc/sys/net/netfilter/nf_conntrack_max"
+#define CONNTRACK_FILE_OLD "/proc/sys/net/ipv4/netfilter/ip_conntrack_count"
+#define CONNTRACK_MAX_FILE_OLD "/proc/sys/net/ipv4/netfilter/ip_conntrack_max"
-static void conntrack_submit (double conntrack)
+static const char *config_keys[] =
{
- value_t values[1];
- value_list_t vl = VALUE_LIST_INIT;
+ "OldFiles"
+};
+static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
+/*
+ Each table/chain combo that will be queried goes into this list
+*/
+
+static int old_files = 0;
+
+static int conntrack_config(const char *key, const char *value)
+{
+ if (strcmp(key, "OldFiles") == 0)
+ old_files = 1;
- values[0].gauge = conntrack;
+ return 0;
+}
+
+static void conntrack_submit (const char *type, const char *type_instance,
+ value_t conntrack)
+{
+ value_list_t vl = VALUE_LIST_INIT;
- vl.values = values;
+ vl.values = &conntrack;
vl.values_len = 1;
sstrncpy (vl.host, hostname_g, sizeof (vl.host));
sstrncpy (vl.plugin, "conntrack", sizeof (vl.plugin));
- sstrncpy (vl.type, "conntrack", sizeof (vl.type));
+ 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 conntrack_submit */
static int conntrack_read (void)
{
- double conntrack;
+ value_t conntrack, conntrack_max, conntrack_pct;
FILE *fh;
char buffer[64];
+ size_t buffer_len;
+
+ fh = fopen (old_files?CONNTRACK_FILE_OLD:CONNTRACK_FILE, "r");
+ if (fh == NULL)
+ return (-1);
+
+ memset (buffer, 0, sizeof (buffer));
+ if (fgets (buffer, sizeof (buffer), fh) == NULL)
+ {
+ fclose (fh);
+ return (-1);
+ }
+ fclose (fh);
+
+ /* strip trailing newline. */
+ buffer_len = strlen (buffer);
+ while ((buffer_len > 0) && isspace ((int) buffer[buffer_len - 1]))
+ {
+ buffer[buffer_len - 1] = 0;
+ buffer_len--;
+ }
+
+ if (parse_value (buffer, &conntrack, DS_TYPE_GAUGE) != 0)
+ return (-1);
+
+ conntrack_submit ("conntrack", NULL, conntrack);
- fh = fopen (CONNTRACK_FILE, "r");
+ fh = fopen (old_files?CONNTRACK_MAX_FILE_OLD:CONNTRACK_MAX_FILE, "r");
if (fh == NULL)
return (-1);
+ memset (buffer, 0, sizeof (buffer));
if (fgets (buffer, sizeof (buffer), fh) == NULL)
{
fclose (fh);
}
fclose (fh);
- conntrack = atof (buffer);
+ /* strip trailing newline. */
+ buffer_len = strlen (buffer);
+ while ((buffer_len > 0) && isspace ((int) buffer[buffer_len - 1]))
+ {
+ buffer[buffer_len - 1] = 0;
+ buffer_len--;
+ }
+
+ if (parse_value (buffer, &conntrack_max, DS_TYPE_GAUGE) != 0)
+ return (-1);
+
+ conntrack_submit ("conntrack", "max", conntrack_max);
+ conntrack_pct.gauge = (conntrack.gauge / conntrack_max.gauge) * 100;
+ conntrack_submit ("percent", "used", conntrack_pct);
- if (conntrack > 0.0)
- conntrack_submit (conntrack);
return (0);
} /* static int conntrack_read */
void module_register (void)
{
+ plugin_register_config ("conntrack", conntrack_config,
+ config_keys, config_keys_num);
plugin_register_read ("conntrack", conntrack_read);
} /* void module_register */