write_redis: Log error message from redis command failures

[collectd.git] / src / conntrack.c

diff --git a/src/conntrack.c b/src/conntrack.c
index 52cc876..49a3355 100644 (file)
--- a/src/conntrack.c
+++ b/src/conntrack.c
@@ -8,7 +8,7 @@
  *
  * 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
@@ -18,7 +18,7 @@
  * 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"
@@ -31,9 +31,30 @@
 
 #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 (const char *type_instance,
-                             const char *type, value_t conntrack)
+static const char *config_keys[] =
+{
+       "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;
+
+    return 0;
+}
+
+static void conntrack_submit (const char *type, const char *type_instance,
+                             value_t conntrack)
 {
        value_list_t vl = VALUE_LIST_INIT;
 
@@ -41,10 +62,10 @@ static void conntrack_submit (const char *type_instance,
        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));
-        if (type_instance != NULL)
-                sstrncpy (vl.type_instance, type_instance,
-                          sizeof (vl.type_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 conntrack_submit */
@@ -56,7 +77,7 @@ static int conntrack_read (void)
        char buffer[64];
        size_t buffer_len;
 
-       fh = fopen (CONNTRACK_FILE, "r");
+       fh = fopen (old_files?CONNTRACK_FILE_OLD:CONNTRACK_FILE, "r");
        if (fh == NULL)
                return (-1);
 
@@ -79,9 +100,9 @@ static int conntrack_read (void)
        if (parse_value (buffer, &conntrack, DS_TYPE_GAUGE) != 0)
                return (-1);
 
-       conntrack_submit (NULL, "conntrack", conntrack);
+       conntrack_submit ("conntrack", NULL, conntrack);
 
-       fh = fopen (CONNTRACK_MAX_FILE, "r");
+       fh = fopen (old_files?CONNTRACK_MAX_FILE_OLD:CONNTRACK_MAX_FILE, "r");
        if (fh == NULL)
                return (-1);
 
@@ -104,10 +125,9 @@ static int conntrack_read (void)
        if (parse_value (buffer, &conntrack_max, DS_TYPE_GAUGE) != 0)
                return (-1);
 
-       conntrack_submit ("max", "conntrack", conntrack_max);
-
-        conntrack_pct.gauge = (conntrack.gauge / conntrack_max.gauge) * 100;
-       conntrack_submit ("percent", "percent", conntrack_pct);
+       conntrack_submit ("conntrack", "max", conntrack_max);
+       conntrack_pct.gauge = (conntrack.gauge / conntrack_max.gauge) * 100;
+       conntrack_submit ("percent", "used", conntrack_pct);
 
 
        return (0);
@@ -115,5 +135,7 @@ static int conntrack_read (void)
 
 void module_register (void)
 {
+    plugin_register_config ("conntrack", conntrack_config,
+                            config_keys, config_keys_num);
        plugin_register_read ("conntrack", conntrack_read);
 } /* void module_register */