/**
* collectd - src/traffic.c
- * Copyright (C) 2005 Florian octo Forster
+ * Copyright (C) 2005-2007 Florian octo Forster
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
+ * Free Software Foundation; only version 2 of the License is applicable.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
*
* Authors:
* Florian octo Forster <octo at verplant.org>
+ * Sune Marcher <sm at flork.dk>
**/
-#include "traffic.h"
+#include "collectd.h"
+#include "common.h"
+#include "plugin.h"
+#include "configfile.h"
+
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_SYS_SOCKET_H
+# include <sys/socket.h>
+#endif
+
+/* One cannot include both. This sucks. */
+#if HAVE_LINUX_IF_H
+# include <linux/if.h>
+#elif HAVE_NET_IF_H
+# include <net/if.h>
+#endif
+
+#if HAVE_LINUX_NETDEVICE_H
+# include <linux/netdevice.h>
+#endif
+#if HAVE_IFADDRS_H
+# include <ifaddrs.h>
+#endif
+
+/*
+ * Various people have reported problems with `getifaddrs' and varying versions
+ * of `glibc'. That's why it's disabled by default. Since more statistics are
+ * available this way one may enable it using the `--enable-getifaddrs' option
+ * of the configure script. -octo
+ */
+#if KERNEL_LINUX
+# if !COLLECT_GETIFADDRS
+# undef HAVE_GETIFADDRS
+# endif /* !COLLECT_GETIFADDRS */
+#endif /* KERNEL_LINUX */
+
+#if HAVE_GETIFADDRS || KERNEL_LINUX || HAVE_LIBKSTAT || HAVE_LIBSTATGRAB
+# define TRAFFIC_HAVE_READ 1
+#else
+# define TRAFFIC_HAVE_READ 0
+#endif
+
+/*
+ * (Module-)Global variables
+ */
+/* 2^32 = 4294967296 = ~4.2GByte/s = ~34GBit/s */
+static data_source_t octets_dsrc[2] =
+{
+ {"rx", DS_TYPE_COUNTER, 0, 4294967295.0},
+ {"tx", DS_TYPE_COUNTER, 0, 4294967295.0}
+};
-#if COLLECT_TRAFFIC
-#define MODULE_NAME "traffic"
+static data_set_t octets_ds =
+{
+ "if_octets", 2, octets_dsrc
+};
-#include "plugin.h"
-#include "common.h"
+static data_source_t packets_dsrc[2] =
+{
+ {"rx", DS_TYPE_COUNTER, 0, 4294967295.0},
+ {"tx", DS_TYPE_COUNTER, 0, 4294967295.0}
+};
+
+static data_set_t packets_ds =
+{
+ "if_packets", 2, packets_dsrc
+};
+
+static data_source_t errors_dsrc[2] =
+{
+ {"rx", DS_TYPE_COUNTER, 0, 4294967295.0},
+ {"tx", DS_TYPE_COUNTER, 0, 4294967295.0}
+};
+
+static data_set_t errors_ds =
+{
+ "if_errors", 2, errors_dsrc
+};
+
+static const char *config_keys[] =
+{
+ "Interface",
+ "IgnoreSelected",
+ NULL
+};
+static int config_keys_num = 2;
+
+static char **if_list = NULL;
+static int if_list_num = 0;
+/*
+ * if_list_action:
+ * 0 => default is to collect selected interface
+ * 1 => ignore selcted interfaces
+ */
+static int if_list_action = 0;
#ifdef HAVE_LIBKSTAT
#define MAX_NUMIF 256
static int numif = 0;
#endif /* HAVE_LIBKSTAT */
-static char *traffic_filename_template = "traffic-%s.rrd";
-
-static char *ds_def[] =
+static int interface_config (const char *key, const char *value)
{
- "DS:incoming:COUNTER:25:0:U",
- "DS:outgoing:COUNTER:25:0:U",
- NULL
-};
-static int ds_num = 2;
+ char **temp;
+
+ if (strcasecmp (key, "Interface") == 0)
+ {
+ temp = (char **) realloc (if_list, (if_list_num + 1) * sizeof (char *));
+ if (temp == NULL)
+ {
+ syslog (LOG_EMERG, "Cannot allocate more memory.");
+ return (1);
+ }
+ if_list = temp;
+
+ if ((if_list[if_list_num] = strdup (value)) == NULL)
+ {
+ syslog (LOG_EMERG, "Cannot allocate memory.");
+ return (1);
+ }
+ if_list_num++;
+ }
+ else if (strcasecmp (key, "IgnoreSelected") == 0)
+ {
+ if ((strcasecmp (value, "True") == 0)
+ || (strcasecmp (value, "Yes") == 0)
+ || (strcasecmp (value, "On") == 0))
+ if_list_action = 1;
+ else
+ if_list_action = 0;
+ }
+ else
+ {
+ return (-1);
+ }
+
+ return (0);
+}
-void traffic_init (void)
+#if HAVE_LIBKSTAT
+static int traffic_init (void)
{
-#ifdef HAVE_LIBKSTAT
+#if HAVE_LIBKSTAT
kstat_t *ksp_chain;
- kstat_named_t *kn;
unsigned long long val;
numif = 0;
if (kc == NULL)
- return;
+ return (-1);
for (numif = 0, ksp_chain = kc->kc_chain;
(numif < MAX_NUMIF) && (ksp_chain != NULL);
ksp[numif++] = ksp_chain;
}
#endif /* HAVE_LIBKSTAT */
-}
-void traffic_write (char *host, char *inst, char *val)
+ return (0);
+} /* int traffic_init */
+#endif /* HAVE_LIBKSTAT */
+
+/*
+ * Check if this interface/instance should be ignored. This is called from
+ * both, `submit' and `write' to give client and server the ability to
+ * ignore certain stuff..
+ */
+static int check_ignore_if (const char *interface)
{
- char file[512];
- int status;
+ int i;
- status = snprintf (file, 512, traffic_filename_template, inst);
- if (status < 1)
- return;
- else if (status >= 512)
+ /* If no interfaces are given collect all interfaces. Mostly to be
+ * backwards compatible, but also because this is much easier. */
+ if (if_list_num < 1)
+ return (0);
+
+ for (i = 0; i < if_list_num; i++)
+ if (strcasecmp (interface, if_list[i]) == 0)
+ return (if_list_action);
+ return (1 - if_list_action);
+} /* int check_ignore_if */
+
+#if TRAFFIC_HAVE_READ
+static void if_submit (const char *dev, const char *type,
+ unsigned long long rx,
+ unsigned long long tx)
+{
+ value_t values[2];
+ value_list_t vl = VALUE_LIST_INIT;
+
+ if (check_ignore_if (dev))
return;
- rrd_update_file (host, file, val, ds_def, ds_num);
-}
+ values[0].counter = rx;
+ values[1].counter = tx;
-#define BUFSIZE 512
-void traffic_submit (char *device,
- unsigned long long incoming,
- unsigned long long outgoing)
+ vl.values = values;
+ vl.values_len = 2;
+ vl.time = time (NULL);
+ strcpy (vl.host, hostname);
+ strcpy (vl.plugin, "interface");
+ strcpy (vl.plugin_instance, "");
+ strncpy (vl.type_instance, dev, sizeof (vl.type_instance));
+
+ plugin_dispatch_values (type, &vl);
+} /* void if_submit */
+
+static int traffic_read (void)
{
- char buf[BUFSIZE];
+#if HAVE_GETIFADDRS
+ struct ifaddrs *if_list;
+ struct ifaddrs *if_ptr;
+
+/* Darin/Mac OS X and possible other *BSDs */
+#if HAVE_STRUCT_IF_DATA
+# define IFA_DATA if_data
+# define IFA_RX_BYTES ifi_ibytes
+# define IFA_TX_BYTES ifi_obytes
+# define IFA_RX_PACKT ifi_ipackets
+# define IFA_TX_PACKT ifi_opackets
+# define IFA_RX_ERROR ifi_ierrors
+# define IFA_TX_ERROR ifi_oerrors
+/* #endif HAVE_STRUCT_IF_DATA */
+
+#elif HAVE_STRUCT_NET_DEVICE_STATS
+# define IFA_DATA net_device_stats
+# define IFA_RX_BYTES rx_bytes
+# define IFA_TX_BYTES tx_bytes
+# define IFA_RX_PACKT rx_packets
+# define IFA_TX_PACKT tx_packets
+# define IFA_RX_ERROR rx_errors
+# define IFA_TX_ERROR tx_errors
+#else
+# error "No suitable type for `struct ifaddrs->ifa_data' found."
+#endif
+
+ struct IFA_DATA *if_data;
+
+ if (getifaddrs (&if_list) != 0)
+ return (-1);
+
+ for (if_ptr = if_list; if_ptr != NULL; if_ptr = if_ptr->ifa_next)
+ {
+ if ((if_data = (struct IFA_DATA *) if_ptr->ifa_data) == NULL)
+ continue;
- if (snprintf (buf, BUFSIZE, "%u:%lld:%lld", (unsigned int) curtime, incoming, outgoing) >= BUFSIZE)
- return;
+ if_submit (if_ptr->ifa_name, "if_octets",
+ if_data->IFA_RX_BYTES,
+ if_data->IFA_TX_BYTES);
+ if_submit (if_ptr->ifa_name, "if_packets",
+ if_data->IFA_RX_PACKT,
+ if_data->IFA_TX_PACKT);
+ if_submit (if_ptr->ifa_name, "if_errors",
+ if_data->IFA_RX_ERROR,
+ if_data->IFA_TX_ERROR);
+ }
- plugin_submit (MODULE_NAME, device, buf);
-}
-#undef BUFSIZE
+ freeifaddrs (if_list);
+/* #endif HAVE_GETIFADDRS */
-void traffic_read (void)
-{
-#ifdef KERNEL_LINUX
+#elif KERNEL_LINUX
FILE *fh;
char buffer[1024];
unsigned long long incoming, outgoing;
if ((fh = fopen ("/proc/net/dev", "r")) == NULL)
{
syslog (LOG_WARNING, "traffic: fopen: %s", strerror (errno));
- return;
+ return (-1);
}
while (fgets (buffer, 1024, fh) != NULL)
{
- if (buffer[6] != ':')
+ if (!(dummy = strchr(buffer, ':')))
continue;
- buffer[6] = '\0';
+ dummy[0] = '\0';
+ dummy++;
device = buffer;
while (device[0] == ' ')
if (device[0] == '\0')
continue;
- dummy = buffer + 7;
numfields = strsplit (dummy, fields, 16);
- if (numfields < 9)
+ if (numfields < 11)
continue;
incoming = atoll (fields[0]);
outgoing = atoll (fields[8]);
+ if_submit (device, "if_octets", incoming, outgoing);
+
+ incoming = atoll (fields[1]);
+ outgoing = atoll (fields[9]);
+ if_submit (device, "if_packets", incoming, outgoing);
- traffic_submit (device, incoming, outgoing);
+ incoming = atoll (fields[2]);
+ outgoing = atoll (fields[10]);
+ if_submit (device, "if_errors", incoming, outgoing);
}
fclose (fh);
/* #endif KERNEL_LINUX */
-#elif defined(HAVE_LIBKSTAT)
+#elif HAVE_LIBKSTAT
int i;
- unsigned long long incoming, outgoing;
+ unsigned long long rx;
+ unsigned long long tx;
if (kc == NULL)
return;
if (kstat_read (kc, ksp[i], NULL) == -1)
continue;
- if ((incoming = get_kstat_value (ksp[i], "rbytes")) == -1LL)
- continue;
- if ((outgoing = get_kstat_value (ksp[i], "obytes")) == -1LL)
- continue;
+ rx = get_kstat_value (ksp[i], "rbytes");
+ tx = get_kstat_value (ksp[i], "obytes");
+ if ((rx != -1LL) || (tx != -1LL))
+ if_submit (ksp[i]->ks_name, "if_octets", rx, tx);
+
+ rx = get_kstat_value (ksp[i], "ipackets");
+ tx = get_kstat_value (ksp[i], "opackets");
+ if ((rx != -1LL) || (tx != -1LL))
+ if_submit (ksp[i]->ks_name, "if_packets", rx, tx);
- traffic_submit (ksp[i]->ks_name, incoming, outgoing);
+ rx = get_kstat_value (ksp[i], "ierrors");
+ tx = get_kstat_value (ksp[i], "oerrors");
+ if ((rx != -1LL) || (tx != -1LL))
+ if_submit (ksp[i]->ks_name, "if_errors", rx, tx);
}
/* #endif HAVE_LIBKSTAT */
ios = sg_get_network_io_stats (&num);
for (i = 0; i < num; i++)
- traffic_submit (ios[i].interface_name, ios[i].rx, ios[i].tx);
+ if_submit (ios[i].interface_name, "if_octets", ios[i].rx, ios[i].tx);
#endif /* HAVE_LIBSTATGRAB */
-}
+
+ return (0);
+} /* int traffic_read */
+#endif /* TRAFFIC_HAVE_READ */
void module_register (void)
{
- plugin_register (MODULE_NAME, traffic_init, traffic_read, traffic_write);
-}
+ plugin_register_data_set (&octets_ds);
+ plugin_register_data_set (&packets_ds);
+ plugin_register_data_set (&errors_ds);
+
+ plugin_register_config ("interface", interface_config,
+ config_keys, config_keys_num);
-#undef MODULE_NAME
-#endif /* COLLECT_TRAFFIC */
+#if HAVE_LIBKSTAT
+ plugin_register_init ("interface", traffic_init);
+#endif
+
+#if TRAFFIC_HAVE_READ
+ plugin_register_read ("interface", traffic_read);
+#endif
+}
projects / collectd.git / blobdiff