2 * collectd - src/traffic.c
3 * Copyright (C) 2005 Florian octo Forster
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version.
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>
26 #define MODULE_NAME "traffic"
33 extern kstat_ctl_t *kc;
34 static kstat_t *ksp[MAX_NUMIF];
36 #endif /* HAVE_LIBKSTAT */
38 static char *traffic_filename_template = "traffic-%s.rrd";
40 static char *ds_def[] =
42 "DS:incoming:COUNTER:25:0:U",
43 "DS:outgoing:COUNTER:25:0:U",
46 static int ds_num = 2;
48 void traffic_init (void)
53 unsigned long long val;
60 for (numif = 0, ksp_chain = kc->kc_chain;
61 (numif < MAX_NUMIF) && (ksp_chain != NULL);
62 ksp_chain = ksp_chain->ks_next)
64 if (strncmp (ksp_chain->ks_class, "net", 3))
66 if (ksp_chain->ks_type != KSTAT_TYPE_NAMED)
68 if (kstat_read (kc, ksp_chain, NULL) == -1)
70 if ((val = get_kstat_value (ksp_chain, "obytes")) == -1LL)
72 ksp[numif++] = ksp_chain;
74 #endif /* HAVE_LIBKSTAT */
77 void traffic_write (char *host, char *inst, char *val)
82 status = snprintf (file, 512, traffic_filename_template, inst);
85 else if (status >= 512)
88 rrd_update_file (host, file, val, ds_def, ds_num);
92 void traffic_submit (char *device,
93 unsigned long long incoming,
94 unsigned long long outgoing)
98 if (snprintf (buf, BUFSIZE, "%u:%lld:%lld", (unsigned int) curtime, incoming, outgoing) >= BUFSIZE)
101 plugin_submit (MODULE_NAME, device, buf);
105 void traffic_read (void)
110 unsigned long long incoming, outgoing;
117 if ((fh = fopen ("/proc/net/dev", "r")) == NULL)
119 syslog (LOG_WARNING, "traffic: fopen: %s", strerror (errno));
123 while (fgets (buffer, 1024, fh) != NULL)
125 if (buffer[6] != ':')
130 while (device[0] == ' ')
133 if (device[0] == '\0')
137 numfields = strsplit (dummy, fields, 16);
142 incoming = atoll (fields[0]);
143 outgoing = atoll (fields[8]);
145 traffic_submit (device, incoming, outgoing);
149 /* #endif KERNEL_LINUX */
151 #elif defined(HAVE_LIBKSTAT)
153 unsigned long long incoming, outgoing;
158 for (i = 0; i < numif; i++)
160 if (kstat_read (kc, ksp[i], NULL) == -1)
163 if ((incoming = get_kstat_value (ksp[i], "rbytes")) == -1LL)
165 if ((outgoing = get_kstat_value (ksp[i], "obytes")) == -1LL)
168 traffic_submit (ksp[i]->ks_name, incoming, outgoing);
170 /* #endif HAVE_LIBKSTAT */
172 #elif defined(HAVE_LIBSTATGRAB)
173 sg_network_io_stats *ios;
176 ios = sg_get_network_io_stats (&num);
178 for (i = 0; i < num; i++)
179 traffic_submit (ios[i].interface_name, ios[i].rx, ios[i].tx);
180 #endif /* HAVE_LIBSTATGRAB */
183 void module_register (void)
185 plugin_register (MODULE_NAME, traffic_init, traffic_read, traffic_write);
189 #endif /* COLLECT_TRAFFIC */