2 * collectd - src/interface.c
3 * Copyright (C) 2005-2008 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 verplant.org>
21 * Sune Marcher <sm at flork.dk>
28 #include "configfile.h"
29 #include "utils_ignorelist.h"
32 # include <sys/types.h>
35 # include <sys/socket.h>
38 /* One cannot include both. This sucks. */
40 # include <linux/if.h>
45 #if HAVE_LINUX_NETDEVICE_H
46 # include <linux/netdevice.h>
53 # include <statgrab.h>
57 # include <sys/protosw.h>
58 # include <libperfstat.h>
62 * Various people have reported problems with `getifaddrs' and varying versions
63 * of `glibc'. That's why it's disabled by default. Since more statistics are
64 * available this way one may enable it using the `--enable-getifaddrs' option
65 * of the configure script. -octo
68 # if !COLLECT_GETIFADDRS
69 # undef HAVE_GETIFADDRS
70 # endif /* !COLLECT_GETIFADDRS */
71 #endif /* KERNEL_LINUX */
74 static perfstat_netinterface_t *ifstat;
77 #endif /* HAVE_PERFSTAT */
79 #if !HAVE_GETIFADDRS && !KERNEL_LINUX && !HAVE_LIBKSTAT && !HAVE_LIBSTATGRAB && !HAVE_PERFSTAT
80 # error "No applicable input method."
84 * (Module-)Global variables
86 static const char *config_keys[] =
92 static int config_keys_num = 2;
94 static ignorelist_t *ignorelist = NULL;
98 extern kstat_ctl_t *kc;
99 static kstat_t *ksp[MAX_NUMIF];
100 static int numif = 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);
128 static int interface_init (void)
131 unsigned long long val;
138 for (numif = 0, ksp_chain = kc->kc_chain;
139 (numif < MAX_NUMIF) && (ksp_chain != NULL);
140 ksp_chain = ksp_chain->ks_next)
142 if (strncmp (ksp_chain->ks_class, "net", 3))
144 if (ksp_chain->ks_type != KSTAT_TYPE_NAMED)
146 if (kstat_read (kc, ksp_chain, NULL) == -1)
148 if ((val = get_kstat_value (ksp_chain, "obytes")) == -1LL)
150 ksp[numif++] = ksp_chain;
154 } /* int interface_init */
155 #endif /* HAVE_LIBKSTAT */
157 static void if_submit (const char *dev, const char *type,
158 unsigned long long rx,
159 unsigned long long tx)
162 value_list_t vl = VALUE_LIST_INIT;
164 if (ignorelist_match (ignorelist, dev) != 0)
167 values[0].counter = rx;
168 values[1].counter = tx;
172 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
173 sstrncpy (vl.plugin, "interface", sizeof (vl.plugin));
174 sstrncpy (vl.type, type, sizeof (vl.type));
175 sstrncpy (vl.type_instance, dev, sizeof (vl.type_instance));
177 plugin_dispatch_values (&vl);
178 } /* void if_submit */
180 static int interface_read (void)
183 struct ifaddrs *if_list;
184 struct ifaddrs *if_ptr;
186 /* Darin/Mac OS X and possible other *BSDs */
187 #if HAVE_STRUCT_IF_DATA
188 # define IFA_DATA if_data
189 # define IFA_RX_BYTES ifi_ibytes
190 # define IFA_TX_BYTES ifi_obytes
191 # define IFA_RX_PACKT ifi_ipackets
192 # define IFA_TX_PACKT ifi_opackets
193 # define IFA_RX_ERROR ifi_ierrors
194 # define IFA_TX_ERROR ifi_oerrors
195 /* #endif HAVE_STRUCT_IF_DATA */
197 #elif HAVE_STRUCT_NET_DEVICE_STATS
198 # define IFA_DATA net_device_stats
199 # define IFA_RX_BYTES rx_bytes
200 # define IFA_TX_BYTES tx_bytes
201 # define IFA_RX_PACKT rx_packets
202 # define IFA_TX_PACKT tx_packets
203 # define IFA_RX_ERROR rx_errors
204 # define IFA_TX_ERROR tx_errors
206 # error "No suitable type for `struct ifaddrs->ifa_data' found."
209 struct IFA_DATA *if_data;
211 if (getifaddrs (&if_list) != 0)
214 for (if_ptr = if_list; if_ptr != NULL; if_ptr = if_ptr->ifa_next)
216 if ((if_data = (struct IFA_DATA *) if_ptr->ifa_data) == NULL)
219 if_submit (if_ptr->ifa_name, "if_octets",
220 if_data->IFA_RX_BYTES,
221 if_data->IFA_TX_BYTES);
222 if_submit (if_ptr->ifa_name, "if_packets",
223 if_data->IFA_RX_PACKT,
224 if_data->IFA_TX_PACKT);
225 if_submit (if_ptr->ifa_name, "if_errors",
226 if_data->IFA_RX_ERROR,
227 if_data->IFA_TX_ERROR);
230 freeifaddrs (if_list);
231 /* #endif HAVE_GETIFADDRS */
236 unsigned long long incoming, outgoing;
243 if ((fh = fopen ("/proc/net/dev", "r")) == NULL)
246 WARNING ("interface plugin: fopen: %s",
247 sstrerror (errno, errbuf, sizeof (errbuf)));
251 while (fgets (buffer, 1024, fh) != NULL)
253 if (!(dummy = strchr(buffer, ':')))
259 while (device[0] == ' ')
262 if (device[0] == '\0')
265 numfields = strsplit (dummy, fields, 16);
270 incoming = atoll (fields[0]);
271 outgoing = atoll (fields[8]);
272 if_submit (device, "if_octets", incoming, outgoing);
274 incoming = atoll (fields[1]);
275 outgoing = atoll (fields[9]);
276 if_submit (device, "if_packets", incoming, outgoing);
278 incoming = atoll (fields[2]);
279 outgoing = atoll (fields[10]);
280 if_submit (device, "if_errors", incoming, outgoing);
284 /* #endif KERNEL_LINUX */
288 unsigned long long rx;
289 unsigned long long tx;
294 for (i = 0; i < numif; i++)
296 if (kstat_read (kc, ksp[i], NULL) == -1)
299 rx = get_kstat_value (ksp[i], "rbytes");
300 tx = get_kstat_value (ksp[i], "obytes");
301 if ((rx != -1LL) || (tx != -1LL))
302 if_submit (ksp[i]->ks_name, "if_octets", rx, tx);
304 rx = get_kstat_value (ksp[i], "ipackets");
305 tx = get_kstat_value (ksp[i], "opackets");
306 if ((rx != -1LL) || (tx != -1LL))
307 if_submit (ksp[i]->ks_name, "if_packets", rx, tx);
309 rx = get_kstat_value (ksp[i], "ierrors");
310 tx = get_kstat_value (ksp[i], "oerrors");
311 if ((rx != -1LL) || (tx != -1LL))
312 if_submit (ksp[i]->ks_name, "if_errors", rx, tx);
314 /* #endif HAVE_LIBKSTAT */
316 #elif defined(HAVE_LIBSTATGRAB)
317 sg_network_io_stats *ios;
320 ios = sg_get_network_io_stats (&num);
322 for (i = 0; i < num; i++)
323 if_submit (ios[i].interface_name, "if_octets", ios[i].rx, ios[i].tx);
324 /* #endif HAVE_LIBSTATGRAB */
326 #elif defined(HAVE_PERFSTAT)
330 if ((nif = perfstat_netinterface(NULL, NULL, sizeof(perfstat_netinterface_t), 0)) < 0)
333 WARNING ("interface plugin: perfstat_netinterface: %s",
334 sstrerror (errno, errbuf, sizeof (errbuf)));
338 if (pnif != nif || ifstat == NULL)
342 ifstat = malloc(nif * sizeof(perfstat_netinterface_t));
347 if ((ifs = perfstat_netinterface(&id, ifstat, sizeof(perfstat_netinterface_t), nif)) < 0)
350 WARNING ("interface plugin: perfstat_netinterface (interfaces=%d): %s",
351 nif, sstrerror (errno, errbuf, sizeof (errbuf)));
355 for (i = 0; i < ifs; i++)
357 if_submit (ifstat[i].name, "if_octets", ifstat[i].ibytes, ifstat[i].obytes);
358 if_submit (ifstat[i].name, "if_packets", ifstat[i].ipackets ,ifstat[i].opackets);
359 if_submit (ifstat[i].name, "if_errors", ifstat[i].ierrors, ifstat[i].oerrors );
361 #endif /* HAVE_PERFSTAT */
364 } /* int interface_read */
366 void module_register (void)
368 plugin_register_config ("interface", interface_config,
369 config_keys, config_keys_num);
371 plugin_register_init ("interface", interface_init);
373 plugin_register_read ("interface", interface_read);
374 } /* void module_register */