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>
27 #define MODULE_NAME "traffic"
29 #if defined(KERNEL_LINUX) || defined(HAVE_LIBKSTAT) || defined(HAVE_LIBSTATGRAB)
30 # define TRAFFIC_HAVE_READ 1
32 # define TRAFFIC_HAVE_READ 0
35 static char *traffic_filename_template = "traffic-%s.rrd";
37 static char *ds_def[] =
39 "DS:incoming:COUNTER:25:0:U",
40 "DS:outgoing:COUNTER:25:0:U",
43 static int ds_num = 2;
47 extern kstat_ctl_t *kc;
48 static kstat_t *ksp[MAX_NUMIF];
50 #endif /* HAVE_LIBKSTAT */
52 void traffic_init (void)
57 unsigned long long val;
64 for (numif = 0, ksp_chain = kc->kc_chain;
65 (numif < MAX_NUMIF) && (ksp_chain != NULL);
66 ksp_chain = ksp_chain->ks_next)
68 if (strncmp (ksp_chain->ks_class, "net", 3))
70 if (ksp_chain->ks_type != KSTAT_TYPE_NAMED)
72 if (kstat_read (kc, ksp_chain, NULL) == -1)
74 if ((val = get_kstat_value (ksp_chain, "obytes")) == -1LL)
76 ksp[numif++] = ksp_chain;
78 #endif /* HAVE_LIBKSTAT */
81 void traffic_write (char *host, char *inst, char *val)
86 status = snprintf (file, 512, traffic_filename_template, inst);
89 else if (status >= 512)
92 rrd_update_file (host, file, val, ds_def, ds_num);
96 void traffic_submit (char *device,
97 unsigned long long incoming,
98 unsigned long long outgoing)
102 if (snprintf (buf, BUFSIZE, "%u:%lld:%lld", (unsigned int) curtime, incoming, outgoing) >= BUFSIZE)
105 plugin_submit (MODULE_NAME, device, buf);
109 #if TRAFFIC_HAVE_READ
110 void traffic_read (void)
115 unsigned long long incoming, outgoing;
122 if ((fh = fopen ("/proc/net/dev", "r")) == NULL)
124 syslog (LOG_WARNING, "traffic: fopen: %s", strerror (errno));
128 while (fgets (buffer, 1024, fh) != NULL)
130 if (buffer[6] != ':')
135 while (device[0] == ' ')
138 if (device[0] == '\0')
142 numfields = strsplit (dummy, fields, 16);
147 incoming = atoll (fields[0]);
148 outgoing = atoll (fields[8]);
150 traffic_submit (device, incoming, outgoing);
154 /* #endif KERNEL_LINUX */
156 #elif defined(HAVE_LIBKSTAT)
158 unsigned long long incoming, outgoing;
163 for (i = 0; i < numif; i++)
165 if (kstat_read (kc, ksp[i], NULL) == -1)
168 if ((incoming = get_kstat_value (ksp[i], "rbytes")) == -1LL)
170 if ((outgoing = get_kstat_value (ksp[i], "obytes")) == -1LL)
173 traffic_submit (ksp[i]->ks_name, incoming, outgoing);
175 /* #endif HAVE_LIBKSTAT */
177 #elif defined(HAVE_LIBSTATGRAB)
178 sg_network_io_stats *ios;
181 ios = sg_get_network_io_stats (&num);
183 for (i = 0; i < num; i++)
184 traffic_submit (ios[i].interface_name, ios[i].rx, ios[i].tx);
185 #endif /* HAVE_LIBSTATGRAB */
188 #define traffic_read NULL
189 #endif /* TRAFFIC_HAVE_READ */
191 void module_register (void)
193 plugin_register (MODULE_NAME, traffic_init, traffic_read, traffic_write);