2 * collectd - src/interface.c
3 * Copyright (C) 2005-2010 Florian octo Forster
4 * Copyright (C) 2009 Manuel Sanmartin
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; only version 2 of the License is applicable.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License along
16 * with this program; if not, write to the Free Software Foundation, Inc.,
17 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * Florian octo Forster <octo at collectd.org>
21 * Sune Marcher <sm at flork.dk>
29 #include "utils_ignorelist.h"
32 # include <sys/types.h>
35 /* One cannot include both. This sucks. */
37 # include <linux/if.h>
42 #if HAVE_LINUX_NETDEVICE_H
43 # include <linux/netdevice.h>
50 # include <statgrab.h>
54 # include <sys/protosw.h>
55 # include <libperfstat.h>
59 * Various people have reported problems with `getifaddrs' and varying versions
60 * of `glibc'. That's why it's disabled by default. Since more statistics are
61 * available this way one may enable it using the `--enable-getifaddrs' option
62 * of the configure script. -octo
65 # if !COLLECT_GETIFADDRS
66 # undef HAVE_GETIFADDRS
67 # endif /* !COLLECT_GETIFADDRS */
68 #endif /* KERNEL_LINUX */
71 static perfstat_netinterface_t *ifstat;
74 #endif /* HAVE_PERFSTAT */
76 #if !HAVE_GETIFADDRS && !KERNEL_LINUX && !HAVE_LIBKSTAT && !HAVE_LIBSTATGRAB && !HAVE_PERFSTAT
77 # error "No applicable input method."
81 * (Module-)Global variables
83 static const char *config_keys[] =
89 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
91 static ignorelist_t *ignorelist = NULL;
93 static _Bool report_inactive = 1;
97 extern kstat_ctl_t *kc;
98 static kstat_t *ksp[MAX_NUMIF];
100 static _Bool unique_name = 0;
101 #endif /* HAVE_LIBKSTAT */
103 static int interface_config (const char *key, const char *value)
105 if (ignorelist == NULL)
106 ignorelist = ignorelist_create (/* invert = */ 1);
108 if (strcasecmp (key, "Interface") == 0)
110 ignorelist_add (ignorelist, value);
112 else if (strcasecmp (key, "IgnoreSelected") == 0)
117 ignorelist_set_invert (ignorelist, invert);
119 else if (strcasecmp (key, "ReportInactive") == 0)
120 report_inactive = IS_TRUE (value);
121 else if (strcasecmp (key, "UniqueName") == 0)
127 WARNING ("interface plugin: the \"UniqueName\" option is only valid on Solaris.");
128 #endif /* HAVE_LIBKSTAT */
139 static int interface_init (void)
148 for (numif = 0, ksp_chain = kc->kc_chain;
149 (numif < MAX_NUMIF) && (ksp_chain != NULL);
150 ksp_chain = ksp_chain->ks_next)
152 if (strncmp (ksp_chain->ks_class, "net", 3))
154 if (ksp_chain->ks_type != KSTAT_TYPE_NAMED)
156 if (kstat_read (kc, ksp_chain, NULL) == -1)
158 if (get_kstat_value (ksp_chain, "obytes") == -1LL)
160 ksp[numif++] = ksp_chain;
164 } /* int interface_init */
165 #endif /* HAVE_LIBKSTAT */
167 static void if_submit (const char *dev, const char *type,
171 value_list_t vl = VALUE_LIST_INIT;
177 if (ignorelist_match (ignorelist, dev) != 0)
181 vl.values_len = STATIC_ARRAY_SIZE (values);
182 sstrncpy (vl.plugin, "interface", sizeof (vl.plugin));
183 sstrncpy (vl.plugin_instance, dev, sizeof (vl.plugin_instance));
184 sstrncpy (vl.type, type, sizeof (vl.type));
186 plugin_dispatch_values (&vl);
187 } /* void if_submit */
189 static int interface_read (void)
192 struct ifaddrs *if_list;
194 /* Darwin/Mac OS X and possible other *BSDs */
195 #if HAVE_STRUCT_IF_DATA
196 # define IFA_DATA if_data
197 # define IFA_RX_BYTES ifi_ibytes
198 # define IFA_TX_BYTES ifi_obytes
199 # define IFA_RX_PACKT ifi_ipackets
200 # define IFA_TX_PACKT ifi_opackets
201 # define IFA_RX_ERROR ifi_ierrors
202 # define IFA_TX_ERROR ifi_oerrors
203 /* #endif HAVE_STRUCT_IF_DATA */
205 #elif HAVE_STRUCT_NET_DEVICE_STATS
206 # define IFA_DATA net_device_stats
207 # define IFA_RX_BYTES rx_bytes
208 # define IFA_TX_BYTES tx_bytes
209 # define IFA_RX_PACKT rx_packets
210 # define IFA_TX_PACKT tx_packets
211 # define IFA_RX_ERROR rx_errors
212 # define IFA_TX_ERROR tx_errors
214 # error "No suitable type for `struct ifaddrs->ifa_data' found."
217 struct IFA_DATA *if_data;
219 if (getifaddrs (&if_list) != 0)
222 for (struct ifaddrs *if_ptr = if_list; if_ptr != NULL; if_ptr = if_ptr->ifa_next)
224 if (if_ptr->ifa_addr != NULL && if_ptr->ifa_addr->sa_family == AF_LINK) {
225 if_data = (struct IFA_DATA *) if_ptr->ifa_data;
227 if (!report_inactive && if_data->IFA_RX_PACKT == 0 && if_data->IFA_TX_PACKT == 0)
230 if_submit (if_ptr->ifa_name, "if_octets",
231 if_data->IFA_RX_BYTES,
232 if_data->IFA_TX_BYTES);
233 if_submit (if_ptr->ifa_name, "if_packets",
234 if_data->IFA_RX_PACKT,
235 if_data->IFA_TX_PACKT);
236 if_submit (if_ptr->ifa_name, "if_errors",
237 if_data->IFA_RX_ERROR,
238 if_data->IFA_TX_ERROR);
242 freeifaddrs (if_list);
243 /* #endif HAVE_GETIFADDRS */
248 derive_t incoming, outgoing;
255 if ((fh = fopen ("/proc/net/dev", "r")) == NULL)
258 WARNING ("interface plugin: fopen: %s",
259 sstrerror (errno, errbuf, sizeof (errbuf)));
263 while (fgets (buffer, 1024, fh) != NULL)
265 if (!(dummy = strchr(buffer, ':')))
271 while (device[0] == ' ')
274 if (device[0] == '\0')
277 numfields = strsplit (dummy, fields, 16);
282 incoming = atoll (fields[1]);
283 outgoing = atoll (fields[9]);
284 if (!report_inactive && incoming == 0 && outgoing == 0)
287 if_submit (device, "if_packets", incoming, outgoing);
289 incoming = atoll (fields[0]);
290 outgoing = atoll (fields[8]);
291 if_submit (device, "if_octets", incoming, outgoing);
293 incoming = atoll (fields[2]);
294 outgoing = atoll (fields[10]);
295 if_submit (device, "if_errors", incoming, outgoing);
297 incoming = atoll (fields[3]);
298 outgoing = atoll (fields[11]);
299 if_submit (device, "if_dropped", incoming, outgoing);
303 /* #endif KERNEL_LINUX */
308 char iname[DATA_MAX_NAME_LEN];
313 for (int i = 0; i < numif; i++)
315 if (kstat_read (kc, ksp[i], NULL) == -1)
319 ssnprintf(iname, sizeof(iname), "%s_%d_%s", ksp[i]->ks_module, ksp[i]->ks_instance, ksp[i]->ks_name);
321 sstrncpy(iname, ksp[i]->ks_name, sizeof(iname));
323 /* try to get 64bit counters */
324 rx = get_kstat_value (ksp[i], "ipackets64");
325 tx = get_kstat_value (ksp[i], "opackets64");
326 /* or fallback to 32bit */
328 rx = get_kstat_value (ksp[i], "ipackets");
330 tx = get_kstat_value (ksp[i], "opackets");
331 if (!report_inactive && rx == 0 && tx == 0)
333 if ((rx != -1LL) || (tx != -1LL))
334 if_submit (iname, "if_packets", rx, tx);
336 /* try to get 64bit counters */
337 rx = get_kstat_value (ksp[i], "rbytes64");
338 tx = get_kstat_value (ksp[i], "obytes64");
339 /* or fallback to 32bit */
341 rx = get_kstat_value (ksp[i], "rbytes");
343 tx = get_kstat_value (ksp[i], "obytes");
344 if ((rx != -1LL) || (tx != -1LL))
345 if_submit (iname, "if_octets", rx, tx);
347 /* no 64bit error counters yet */
348 rx = get_kstat_value (ksp[i], "ierrors");
349 tx = get_kstat_value (ksp[i], "oerrors");
350 if ((rx != -1LL) || (tx != -1LL))
351 if_submit (iname, "if_errors", rx, tx);
353 /* #endif HAVE_LIBKSTAT */
355 #elif defined(HAVE_LIBSTATGRAB)
356 sg_network_io_stats *ios;
359 ios = sg_get_network_io_stats (&num);
361 for (int i = 0; i < num; i++) {
362 if (!report_inactive && ios[i].rx == 0 && ios[i].tx == 0)
364 if_submit (ios[i].interface_name, "if_octets", ios[i].rx, ios[i].tx);
366 /* #endif HAVE_LIBSTATGRAB */
368 #elif defined(HAVE_PERFSTAT)
372 if ((nif = perfstat_netinterface(NULL, NULL, sizeof(perfstat_netinterface_t), 0)) < 0)
375 WARNING ("interface plugin: perfstat_netinterface: %s",
376 sstrerror (errno, errbuf, sizeof (errbuf)));
380 if (pnif != nif || ifstat == NULL)
383 ifstat = malloc(nif * sizeof (*ifstat));
388 if ((ifs = perfstat_netinterface(&id, ifstat, sizeof(perfstat_netinterface_t), nif)) < 0)
391 WARNING ("interface plugin: perfstat_netinterface (interfaces=%d): %s",
392 nif, sstrerror (errno, errbuf, sizeof (errbuf)));
396 for (int i = 0; i < ifs; i++)
398 if (!report_inactive && ifstat[i].ipackets == 0 && ifstat[i].opackets == 0)
401 if_submit (ifstat[i].name, "if_octets", ifstat[i].ibytes, ifstat[i].obytes);
402 if_submit (ifstat[i].name, "if_packets", ifstat[i].ipackets ,ifstat[i].opackets);
403 if_submit (ifstat[i].name, "if_errors", ifstat[i].ierrors, ifstat[i].oerrors );
405 #endif /* HAVE_PERFSTAT */
408 } /* int interface_read */
410 void module_register (void)
412 plugin_register_config ("interface", interface_config,
413 config_keys, config_keys_num);
415 plugin_register_init ("interface", interface_init);
417 plugin_register_read ("interface", interface_read);
418 } /* void module_register */