2 * collectd - src/sensors.c
3 * Copyright (C) 2005-2007 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; only version 2 of the License is applicable.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
19 * Florian octo Forster <octo at verplant.org>
21 * Lubos Stanek <lubek at users.sourceforge.net> Wed Oct 27, 2006
22 * - config ExtendedSensorNaming option
23 * - precise sensor feature selection (chip-bus-address/type-feature)
24 * with ExtendedSensorNaming
25 * - more sensor features (finite list)
26 * - honor sensors.conf's ignored
27 * - config Sensor option
28 * - config IgnoreSelected option
34 #include "configfile.h"
35 #include "utils_ignorelist.h"
37 #if defined(HAVE_SENSORS_SENSORS_H)
38 # include <sensors/sensors.h>
40 # undef HAVE_LIBSENSORS
43 #if defined(HAVE_LIBSENSORS)
44 # define SENSORS_HAVE_READ 1
46 # define SENSORS_HAVE_READ 0
49 static data_source_t data_source_fanspeed[1] =
51 {"value", DS_TYPE_GAUGE, 0, NAN}
54 static data_set_t fanspeed_ds =
56 "fanspeed", 1, data_source_fanspeed
59 static data_source_t data_source_temperature[1] =
61 {"value", DS_TYPE_GAUGE, -273.15, NAN}
64 static data_set_t temperature_ds =
66 "temperature", 1, data_source_temperature
69 static data_source_t data_source_voltage[1] =
71 {"value", DS_TYPE_GAUGE, NAN, NAN}
74 static data_set_t voltage_ds =
76 "voltage", 1, data_source_voltage
80 #define SENSOR_TYPE_VOLTAGE 0
81 #define SENSOR_TYPE_FANSPEED 1
82 #define SENSOR_TYPE_TEMPERATURE 2
83 #define SENSOR_TYPE_UNKNOWN 3
85 static char *sensor_to_type[] =
93 struct sensors_labeltypes_s
98 typedef struct sensors_labeltypes_s sensors_labeltypes_t;
101 * finite list of known labels extracted from lm_sensors
103 static sensors_labeltypes_t known_features[] =
105 { "fan1", SENSOR_TYPE_FANSPEED },
106 { "fan2", SENSOR_TYPE_FANSPEED },
107 { "fan3", SENSOR_TYPE_FANSPEED },
108 { "fan4", SENSOR_TYPE_FANSPEED },
109 { "fan5", SENSOR_TYPE_FANSPEED },
110 { "fan6", SENSOR_TYPE_FANSPEED },
111 { "fan7", SENSOR_TYPE_FANSPEED },
112 { "AIN2", SENSOR_TYPE_VOLTAGE },
113 { "AIN1", SENSOR_TYPE_VOLTAGE },
114 { "in10", SENSOR_TYPE_VOLTAGE },
115 { "in9", SENSOR_TYPE_VOLTAGE },
116 { "in8", SENSOR_TYPE_VOLTAGE },
117 { "in7", SENSOR_TYPE_VOLTAGE },
118 { "in6", SENSOR_TYPE_VOLTAGE },
119 { "in5", SENSOR_TYPE_VOLTAGE },
120 { "in4", SENSOR_TYPE_VOLTAGE },
121 { "in3", SENSOR_TYPE_VOLTAGE },
122 { "in2", SENSOR_TYPE_VOLTAGE },
123 { "in0", SENSOR_TYPE_VOLTAGE },
124 { "CPU_Temp", SENSOR_TYPE_TEMPERATURE },
125 { "remote_temp", SENSOR_TYPE_TEMPERATURE },
126 { "temp1", SENSOR_TYPE_TEMPERATURE },
127 { "temp2", SENSOR_TYPE_TEMPERATURE },
128 { "temp3", SENSOR_TYPE_TEMPERATURE },
129 { "temp4", SENSOR_TYPE_TEMPERATURE },
130 { "temp5", SENSOR_TYPE_TEMPERATURE },
131 { "temp6", SENSOR_TYPE_TEMPERATURE },
132 { "temp7", SENSOR_TYPE_TEMPERATURE },
133 { "temp", SENSOR_TYPE_TEMPERATURE },
134 { "Vccp2", SENSOR_TYPE_VOLTAGE },
135 { "Vccp1", SENSOR_TYPE_VOLTAGE },
136 { "vdd", SENSOR_TYPE_VOLTAGE },
137 { "vid5", SENSOR_TYPE_VOLTAGE },
138 { "vid4", SENSOR_TYPE_VOLTAGE },
139 { "vid3", SENSOR_TYPE_VOLTAGE },
140 { "vid2", SENSOR_TYPE_VOLTAGE },
141 { "vid1", SENSOR_TYPE_VOLTAGE },
142 { "vid", SENSOR_TYPE_VOLTAGE },
143 { "vin4", SENSOR_TYPE_VOLTAGE },
144 { "vin3", SENSOR_TYPE_VOLTAGE },
145 { "vin2", SENSOR_TYPE_VOLTAGE },
146 { "vin1", SENSOR_TYPE_VOLTAGE },
147 { "voltbatt", SENSOR_TYPE_VOLTAGE },
148 { "volt12", SENSOR_TYPE_VOLTAGE },
149 { "volt5", SENSOR_TYPE_VOLTAGE },
150 { "vrm", SENSOR_TYPE_VOLTAGE },
151 { "5.0V", SENSOR_TYPE_VOLTAGE },
152 { "5V", SENSOR_TYPE_VOLTAGE },
153 { "3.3V", SENSOR_TYPE_VOLTAGE },
154 { "2.5V", SENSOR_TYPE_VOLTAGE },
155 { "2.0V", SENSOR_TYPE_VOLTAGE },
156 { "12V", SENSOR_TYPE_VOLTAGE }
158 static int known_features_num = STATIC_ARRAY_SIZE (known_features);
161 static const char *config_keys[] =
167 static int config_keys_num = 2;
169 static ignorelist_t *sensor_list;
171 #ifndef SENSORS_CONF_PATH
172 # define SENSORS_CONF_PATH "/etc/sensors.conf"
175 static const char *conffile = SENSORS_CONF_PATH;
176 /* SENSORS_CONF_PATH */
179 * remember stat of the loaded config
181 static time_t sensors_config_mtime = 0;
183 typedef struct featurelist
185 const sensors_chip_name *chip;
186 const sensors_feature_data *data;
188 struct featurelist *next;
191 featurelist_t *first_feature = NULL;
193 static int sensors_config (const char *key, const char *value)
195 if (sensor_list == NULL)
196 sensor_list = ignorelist_create (1);
198 if (strcasecmp (key, "Sensor") == 0)
200 if (ignorelist_add (sensor_list, value))
202 ERROR ("sensors plugin: "
203 "Cannot add value to ignorelist.");
207 else if (strcasecmp (key, "IgnoreSelected") == 0)
209 ignorelist_set_invert (sensor_list, 1);
210 if ((strcasecmp (value, "True") == 0)
211 || (strcasecmp (value, "Yes") == 0)
212 || (strcasecmp (value, "On") == 0))
213 ignorelist_set_invert (sensor_list, 0);
223 void sensors_free_features (void)
225 featurelist_t *thisft;
226 featurelist_t *nextft;
228 if (first_feature == NULL)
233 for (thisft = first_feature; thisft != NULL; thisft = nextft)
235 nextft = thisft->next;
238 first_feature = NULL;
241 static void sensors_load_conf (void)
244 featurelist_t *last_feature = NULL;
245 featurelist_t *new_feature = NULL;
247 const sensors_chip_name *chip;
250 const sensors_feature_data *data;
251 int data_num0, data_num1;
256 status = stat (conffile, &statbuf);
260 ERROR ("sensors plugin: stat (%s) failed: %s", conffile,
261 sstrerror (errno, errbuf, sizeof (errbuf)));
262 sensors_config_mtime = 0;
265 if ((sensors_config_mtime != 0)
266 && (sensors_config_mtime == statbuf.st_mtime))
269 if (sensors_config_mtime != 0)
271 NOTICE ("sensors plugin: Reloading config from %s",
273 sensors_free_features ();
274 sensors_config_mtime = 0;
277 fh = fopen (conffile, "r");
281 ERROR ("sensors plugin: fopen(%s) failed: %s", conffile,
282 sstrerror (errno, errbuf, sizeof (errbuf)));
286 status = sensors_init (fh);
290 ERROR ("sensors plugin: Cannot initialize sensors. "
291 "Data will not be collected.");
295 sensors_config_mtime = statbuf.st_mtime;
298 while ((chip = sensors_get_detected_chips (&chip_num)) != NULL)
301 data_num0 = data_num1 = 0;
303 while ((data = sensors_get_all_features (*chip, &data_num0, &data_num1))
308 /* "master features" only */
309 if (data->mapping != SENSORS_NO_MAPPING)
312 /* Only known features */
313 for (i = 0; i < known_features_num; i++)
315 if (strcmp (data->name, known_features[i].label) != 0)
318 /* skip ignored in sensors.conf */
319 if (sensors_get_ignored (*chip, data->number) == 0)
322 DEBUG ("Adding feature: %s-%s-%s",
324 sensor_to_type[known_features[i].type],
327 if ((new_feature = (featurelist_t *) malloc (sizeof (featurelist_t))) == NULL)
330 ERROR ("sensors plugin: malloc: %s",
331 sstrerror (errno, errbuf, sizeof (errbuf)));
335 new_feature->chip = chip;
336 new_feature->data = data;
337 new_feature->type = known_features[i].type;
338 new_feature->next = NULL;
340 if (first_feature == NULL)
342 first_feature = new_feature;
343 last_feature = new_feature;
347 last_feature->next = new_feature;
348 last_feature = new_feature;
351 /* stop searching known features at first found */
354 } /* while sensors_get_all_features */
355 } /* while sensors_get_detected_chips */
357 if (first_feature == NULL)
360 INFO ("sensors plugin: lm_sensors reports no "
361 "features. Data will not be collected.");
363 } /* void sensors_load_conf */
365 static int sensors_shutdown (void)
367 sensors_free_features ();
368 ignorelist_free (sensor_list);
371 } /* int sensors_shutdown */
373 static void sensors_submit (const char *plugin_instance,
374 const char *type, const char *type_instance,
378 value_list_t vl = VALUE_LIST_INIT;
380 if ((sensor_list != NULL)
381 && (ignorelist_match (sensor_list, type_instance)))
384 values[0].gauge = val;
388 vl.time = time (NULL);
389 strcpy (vl.host, hostname_g);
390 strcpy (vl.plugin, "sensors");
391 strcpy (vl.plugin_instance, plugin_instance);
392 strcpy (vl.type_instance, type_instance);
394 plugin_dispatch_values (type, &vl);
395 } /* void sensors_submit */
397 static int sensors_read (void)
399 featurelist_t *feature;
402 char plugin_instance[DATA_MAX_NAME_LEN];
403 char type_instance[DATA_MAX_NAME_LEN];
405 sensors_load_conf ();
407 for (feature = first_feature; feature != NULL; feature = feature->next)
409 if (sensors_get_feature (*feature->chip, feature->data->number, &value) < 0)
412 /* full chip name logic borrowed from lm_sensors */
413 if (feature->chip->bus == SENSORS_CHIP_NAME_BUS_ISA)
415 if (snprintf (plugin_instance, DATA_MAX_NAME_LEN, "%s-isa-%04x",
416 feature->chip->prefix,
421 else if (feature->chip->bus == SENSORS_CHIP_NAME_BUS_DUMMY)
423 if (snprintf (plugin_instance, 512, "%s-%s-%04x",
424 feature->chip->prefix,
425 feature->chip->busname,
432 if (snprintf (plugin_instance, 512, "%s-i2c-%d-%02x",
433 feature->chip->prefix,
440 strncpy (type_instance, feature->data->name, DATA_MAX_NAME_LEN);
442 sensors_submit (plugin_instance,
443 sensor_to_type[feature->type],
446 } /* for feature = first_feature .. NULL */
449 } /* int sensors_read */
450 #endif /* SENSORS_HAVE_READ */
452 void module_register (modreg_e load)
454 if (load & MR_DATASETS)
456 plugin_register_data_set (&fanspeed_ds);
457 plugin_register_data_set (&temperature_ds);
458 plugin_register_data_set (&voltage_ds);
461 #if SENSORS_HAVE_READ
464 plugin_register_config ("sensors", sensors_config,
465 config_keys, config_keys_num);
466 plugin_register_read ("sensors", sensors_read);
467 plugin_register_shutdown ("sensors", sensors_shutdown);
470 } /* void module_register */