2 * collectd - src/ethstat.c
3 * Copyright (C) 2011 Cyril Feraudet
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 * Cyril Feraudet <cyril at feraudet.com>
26 #include "configfile.h"
29 #include <sys/ioctl.h>
31 #include <linux/sockios.h>
33 static int ethstat_config (const char *key, const char *value)
35 if (strcasecmp (key, "Iface") == 0) {
36 ifacelist[ifacenumber] = malloc(strlen(value) + 1);
37 strcpy(ifacelist[ifacenumber++], value);
38 INFO("ethstat: Registred iface %s", value);
44 static void ethstat_submit_value (char *devname, char *counter, unsigned long long value)
47 value_list_t vl = VALUE_LIST_INIT;
49 values[0].counter = value;
53 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
54 sstrncpy (vl.plugin, "ethstat", sizeof (vl.plugin));
55 sstrncpy (vl.plugin_instance, devname, sizeof (vl.plugin_instance));
56 sstrncpy (vl.type, "derive", sizeof (vl.type));
57 sstrncpy (vl.type_instance, counter, sizeof (vl.type_instance));
59 plugin_dispatch_values (&vl);
63 static int getstats(char *devname, struct ifreq *ifr) {
65 struct ethtool_drvinfo drvinfo;
66 struct ethtool_gstrings *strings;
67 struct ethtool_stats *stats;
68 unsigned int n_stats, sz_str, sz_stats, i;
72 fd = socket(AF_INET, SOCK_DGRAM, 0);
74 ERROR("ethstat - %s : Cannot get control socket", devname);
78 drvinfo.cmd = ETHTOOL_GDRVINFO;
79 ifr->ifr_data = (caddr_t)&drvinfo;
80 err = ioctl(fd, SIOCETHTOOL, ifr);
82 ERROR("ethstat - %s : Cannot get driver information", devname);
87 n_stats = drvinfo.n_stats;
89 ERROR("ethstat - %s : No stats available", devname);
93 sz_str = n_stats * ETH_GSTRING_LEN;
94 sz_stats = n_stats * sizeof(u64);
96 strings = calloc(1, sz_str + sizeof(struct ethtool_gstrings));
97 stats = calloc(1, sz_stats + sizeof(struct ethtool_stats));
98 if (!strings || !stats) {
99 ERROR("ethstat - %s No memory available", devname);
103 strings->cmd = ETHTOOL_GSTRINGS;
104 strings->string_set = ETH_SS_STATS;
105 strings->len = n_stats;
106 ifr->ifr_data = (caddr_t) strings;
107 err = ioctl(fd, SIOCETHTOOL, ifr);
109 ERROR("ethstat - %s : Cannot get stats strings information", devname);
115 stats->cmd = ETHTOOL_GSTATS;
116 stats->n_stats = n_stats;
117 ifr->ifr_data = (caddr_t) stats;
118 err = ioctl(fd, SIOCETHTOOL, ifr);
120 ERROR("ethstat - %s : Cannot get stats information", devname);
126 for (i = 0; i < n_stats; i++) {
127 DEBUG("ethstat - %s : %s: %llu",
129 &strings->data[i * ETH_GSTRING_LEN],
131 ethstat_submit_value (
133 (char*)&strings->data[i * ETH_GSTRING_LEN],
144 static int ethstat_read(void)
149 for (i = 0 ; i < ifacenumber ; i++) {
150 DEBUG("ethstat - Processing : %s\n", ifacelist[i]);
151 memset(&ifr, 0, sizeof(ifr));
152 strcpy(ifr.ifr_name, ifacelist[i]);
153 getstats(ifacelist[i], &ifr);
158 void module_register (void)
160 ifacelist = malloc(sizeof(char*));
161 plugin_register_config ("ethstat", ethstat_config,
162 config_keys, config_keys_num);
163 plugin_register_read ("ethstat", ethstat_read);