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>
28 #include "configfile.h"
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 = 2;
91 static ignorelist_t *ignorelist = NULL;
95 extern kstat_ctl_t *kc;
96 static kstat_t *ksp[MAX_NUMIF];
98 #endif /* HAVE_LIBKSTAT */
100 static int interface_config (const char *key, const char *value)
102 if (ignorelist == NULL)
103 ignorelist = ignorelist_create (/* invert = */ 1);
105 if (strcasecmp (key, "Interface") == 0)
107 ignorelist_add (ignorelist, value);
109 else if (strcasecmp (key, "IgnoreSelected") == 0)
114 ignorelist_set_invert (ignorelist, invert);
125 static int interface_init (void)
135 for (numif = 0, ksp_chain = kc->kc_chain;
136 (numif < MAX_NUMIF) && (ksp_chain != NULL);
137 ksp_chain = ksp_chain->ks_next)
139 if (strncmp (ksp_chain->ks_class, "net", 3))
141 if (ksp_chain->ks_type != KSTAT_TYPE_NAMED)
143 if (kstat_read (kc, ksp_chain, NULL) == -1)
145 if ((val = get_kstat_value (ksp_chain, "obytes")) == -1LL)
147 ksp[numif++] = ksp_chain;
151 } /* int interface_init */
152 #endif /* HAVE_LIBKSTAT */
154 static void if_submit (const char *dev, const char *type,
159 value_list_t vl = VALUE_LIST_INIT;
161 if (ignorelist_match (ignorelist, dev) != 0)
164 values[0].derive = rx;
165 values[1].derive = tx;
169 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
170 sstrncpy (vl.plugin, "interface", sizeof (vl.plugin));
171 sstrncpy (vl.plugin_instance, dev, sizeof (vl.plugin_instance));
172 sstrncpy (vl.type, type, sizeof (vl.type));
174 plugin_dispatch_values (&vl);
175 } /* void if_submit */
177 static int interface_read (void)
180 struct ifaddrs *if_list;
181 struct ifaddrs *if_ptr;
183 /* Darin/Mac OS X and possible other *BSDs */
184 #if HAVE_STRUCT_IF_DATA
185 # define IFA_DATA if_data
186 # define IFA_RX_BYTES ifi_ibytes
187 # define IFA_TX_BYTES ifi_obytes
188 # define IFA_RX_PACKT ifi_ipackets
189 # define IFA_TX_PACKT ifi_opackets
190 # define IFA_RX_ERROR ifi_ierrors
191 # define IFA_TX_ERROR ifi_oerrors
192 /* #endif HAVE_STRUCT_IF_DATA */
194 #elif HAVE_STRUCT_NET_DEVICE_STATS
195 # define IFA_DATA net_device_stats
196 # define IFA_RX_BYTES rx_bytes
197 # define IFA_TX_BYTES tx_bytes
198 # define IFA_RX_PACKT rx_packets
199 # define IFA_TX_PACKT tx_packets
200 # define IFA_RX_ERROR rx_errors
201 # define IFA_TX_ERROR tx_errors
203 # error "No suitable type for `struct ifaddrs->ifa_data' found."
206 struct IFA_DATA *if_data;
208 if (getifaddrs (&if_list) != 0)
211 for (if_ptr = if_list; if_ptr != NULL; if_ptr = if_ptr->ifa_next)
213 if (if_ptr->ifa_addr != NULL && if_ptr->ifa_addr->sa_family == AF_LINK) {
214 if_data = (struct IFA_DATA *) if_ptr->ifa_data;
216 if_submit (if_ptr->ifa_name, "if_octets",
217 if_data->IFA_RX_BYTES,
218 if_data->IFA_TX_BYTES);
219 if_submit (if_ptr->ifa_name, "if_packets",
220 if_data->IFA_RX_PACKT,
221 if_data->IFA_TX_PACKT);
222 if_submit (if_ptr->ifa_name, "if_errors",
223 if_data->IFA_RX_ERROR,
224 if_data->IFA_TX_ERROR);
228 freeifaddrs (if_list);
229 /* #endif HAVE_GETIFADDRS */
234 derive_t incoming, outgoing;
241 if ((fh = fopen ("/proc/net/dev", "r")) == NULL)
244 WARNING ("interface plugin: fopen: %s",
245 sstrerror (errno, errbuf, sizeof (errbuf)));
249 while (fgets (buffer, 1024, fh) != NULL)
251 if (!(dummy = strchr(buffer, ':')))
257 while (device[0] == ' ')
260 if (device[0] == '\0')
263 numfields = strsplit (dummy, fields, 16);
268 incoming = atoll (fields[0]);
269 outgoing = atoll (fields[8]);
270 if_submit (device, "if_octets", incoming, outgoing);
272 incoming = atoll (fields[1]);
273 outgoing = atoll (fields[9]);
274 if_submit (device, "if_packets", incoming, outgoing);
276 incoming = atoll (fields[2]);
277 outgoing = atoll (fields[10]);
278 if_submit (device, "if_errors", incoming, outgoing);
282 /* #endif KERNEL_LINUX */
292 for (i = 0; i < numif; i++)
294 if (kstat_read (kc, ksp[i], NULL) == -1)
297 /* try to get 64bit counters */
298 rx = get_kstat_value (ksp[i], "rbytes64");
299 tx = get_kstat_value (ksp[i], "obytes64");
300 /* or fallback to 32bit */
302 rx = get_kstat_value (ksp[i], "rbytes");
304 tx = get_kstat_value (ksp[i], "obytes");
305 if ((rx != -1LL) || (tx != -1LL))
306 if_submit (ksp[i]->ks_name, "if_octets", rx, tx);
308 /* try to get 64bit counters */
309 rx = get_kstat_value (ksp[i], "ipackets64");
310 tx = get_kstat_value (ksp[i], "opackets64");
311 /* or fallback to 32bit */
313 rx = get_kstat_value (ksp[i], "ipackets");
315 tx = get_kstat_value (ksp[i], "opackets");
316 if ((rx != -1LL) || (tx != -1LL))
317 if_submit (ksp[i]->ks_name, "if_packets", rx, tx);
319 /* no 64bit error counters yet */
320 rx = get_kstat_value (ksp[i], "ierrors");
321 tx = get_kstat_value (ksp[i], "oerrors");
322 if ((rx != -1LL) || (tx != -1LL))
323 if_submit (ksp[i]->ks_name, "if_errors", rx, tx);
325 /* #endif HAVE_LIBKSTAT */
327 #elif defined(HAVE_LIBSTATGRAB)
328 sg_network_io_stats *ios;
331 ios = sg_get_network_io_stats (&num);
333 for (i = 0; i < num; i++)
334 if_submit (ios[i].interface_name, "if_octets", ios[i].rx, ios[i].tx);
335 /* #endif HAVE_LIBSTATGRAB */
337 #elif defined(HAVE_PERFSTAT)
341 if ((nif = perfstat_netinterface(NULL, NULL, sizeof(perfstat_netinterface_t), 0)) < 0)
344 WARNING ("interface plugin: perfstat_netinterface: %s",
345 sstrerror (errno, errbuf, sizeof (errbuf)));
349 if (pnif != nif || ifstat == NULL)
353 ifstat = malloc(nif * sizeof(perfstat_netinterface_t));
358 if ((ifs = perfstat_netinterface(&id, ifstat, sizeof(perfstat_netinterface_t), nif)) < 0)
361 WARNING ("interface plugin: perfstat_netinterface (interfaces=%d): %s",
362 nif, sstrerror (errno, errbuf, sizeof (errbuf)));
366 for (i = 0; i < ifs; i++)
368 if_submit (ifstat[i].name, "if_octets", ifstat[i].ibytes, ifstat[i].obytes);
369 if_submit (ifstat[i].name, "if_packets", ifstat[i].ipackets ,ifstat[i].opackets);
370 if_submit (ifstat[i].name, "if_errors", ifstat[i].ierrors, ifstat[i].oerrors );
372 #endif /* HAVE_PERFSTAT */
375 } /* int interface_read */
377 void module_register (void)
379 plugin_register_config ("interface", interface_config,
380 config_keys, config_keys_num);
382 plugin_register_init ("interface", interface_init);
384 plugin_register_read ("interface", interface_read);
385 } /* void module_register */