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"
36 #include "utils_debug.h"
38 #if defined(HAVE_SENSORS_SENSORS_H)
39 # include <sensors/sensors.h>
41 # undef HAVE_LIBSENSORS
44 #if defined(HAVE_LIBSENSORS)
45 # define SENSORS_HAVE_READ 1
47 # define SENSORS_HAVE_READ 0
50 static data_source_t data_source_fanspeed[1] =
52 {"value", DS_TYPE_GAUGE, 0, NAN}
55 static data_set_t fanspeed_ds =
57 "fanspeed", 1, data_source_fanspeed
60 static data_source_t data_source_temperature[1] =
62 {"value", DS_TYPE_GAUGE, -273.15, NAN}
65 static data_set_t temperature_ds =
67 "temperature", 1, data_source_temperature
70 static data_source_t data_source_voltage[1] =
72 {"value", DS_TYPE_GAUGE, NAN, NAN}
75 static data_set_t voltage_ds =
77 "voltage", 1, data_source_voltage
81 #define SENSOR_TYPE_VOLTAGE 0
82 #define SENSOR_TYPE_FANSPEED 1
83 #define SENSOR_TYPE_TEMPERATURE 2
84 #define SENSOR_TYPE_UNKNOWN 3
86 static char *sensor_to_type[] =
94 struct sensors_labeltypes_s
99 typedef struct sensors_labeltypes_s sensors_labeltypes_t;
102 * finite list of known labels extracted from lm_sensors
104 static sensors_labeltypes_t known_features[] =
106 { "fan1", SENSOR_TYPE_FANSPEED },
107 { "fan2", SENSOR_TYPE_FANSPEED },
108 { "fan3", SENSOR_TYPE_FANSPEED },
109 { "fan4", SENSOR_TYPE_FANSPEED },
110 { "fan5", SENSOR_TYPE_FANSPEED },
111 { "fan6", SENSOR_TYPE_FANSPEED },
112 { "fan7", SENSOR_TYPE_FANSPEED },
113 { "AIN2", SENSOR_TYPE_VOLTAGE },
114 { "AIN1", SENSOR_TYPE_VOLTAGE },
115 { "in10", SENSOR_TYPE_VOLTAGE },
116 { "in9", SENSOR_TYPE_VOLTAGE },
117 { "in8", SENSOR_TYPE_VOLTAGE },
118 { "in7", SENSOR_TYPE_VOLTAGE },
119 { "in6", SENSOR_TYPE_VOLTAGE },
120 { "in5", SENSOR_TYPE_VOLTAGE },
121 { "in4", SENSOR_TYPE_VOLTAGE },
122 { "in3", SENSOR_TYPE_VOLTAGE },
123 { "in2", SENSOR_TYPE_VOLTAGE },
124 { "in0", SENSOR_TYPE_VOLTAGE },
125 { "CPU_Temp", SENSOR_TYPE_TEMPERATURE },
126 { "remote_temp", SENSOR_TYPE_TEMPERATURE },
127 { "temp1", SENSOR_TYPE_TEMPERATURE },
128 { "temp2", SENSOR_TYPE_TEMPERATURE },
129 { "temp3", SENSOR_TYPE_TEMPERATURE },
130 { "temp4", SENSOR_TYPE_TEMPERATURE },
131 { "temp5", SENSOR_TYPE_TEMPERATURE },
132 { "temp6", SENSOR_TYPE_TEMPERATURE },
133 { "temp7", SENSOR_TYPE_TEMPERATURE },
134 { "temp", SENSOR_TYPE_TEMPERATURE },
135 { "Vccp2", SENSOR_TYPE_VOLTAGE },
136 { "Vccp1", SENSOR_TYPE_VOLTAGE },
137 { "vdd", SENSOR_TYPE_VOLTAGE },
138 { "vid5", SENSOR_TYPE_VOLTAGE },
139 { "vid4", SENSOR_TYPE_VOLTAGE },
140 { "vid3", SENSOR_TYPE_VOLTAGE },
141 { "vid2", SENSOR_TYPE_VOLTAGE },
142 { "vid1", SENSOR_TYPE_VOLTAGE },
143 { "vid", SENSOR_TYPE_VOLTAGE },
144 { "vin4", SENSOR_TYPE_VOLTAGE },
145 { "vin3", SENSOR_TYPE_VOLTAGE },
146 { "vin2", SENSOR_TYPE_VOLTAGE },
147 { "vin1", SENSOR_TYPE_VOLTAGE },
148 { "voltbatt", SENSOR_TYPE_VOLTAGE },
149 { "volt12", SENSOR_TYPE_VOLTAGE },
150 { "volt5", SENSOR_TYPE_VOLTAGE },
151 { "vrm", SENSOR_TYPE_VOLTAGE },
152 { "5.0V", SENSOR_TYPE_VOLTAGE },
153 { "5V", SENSOR_TYPE_VOLTAGE },
154 { "3.3V", SENSOR_TYPE_VOLTAGE },
155 { "2.5V", SENSOR_TYPE_VOLTAGE },
156 { "2.0V", SENSOR_TYPE_VOLTAGE },
157 { "12V", SENSOR_TYPE_VOLTAGE },
158 { (char *) 0, SENSOR_TYPE_UNKNOWN }
162 static const char *config_keys[] =
168 static int config_keys_num = 2;
170 static ignorelist_t *sensor_list;
172 #ifndef SENSORS_CONF_PATH
173 # define SENSORS_CONF_PATH "/etc/sensors.conf"
176 static const char *conffile = SENSORS_CONF_PATH;
177 /* SENSORS_CONF_PATH */
180 * remember stat of the loaded config
182 static time_t sensors_config_mtime = 0;
184 typedef struct featurelist
186 const sensors_chip_name *chip;
187 const sensors_feature_data *data;
189 struct featurelist *next;
192 featurelist_t *first_feature = NULL;
194 static int sensors_config (const char *key, const char *value)
196 if (sensor_list == NULL)
197 sensor_list = ignorelist_create (1);
199 if (strcasecmp (key, "Sensor") == 0)
201 if (ignorelist_add (sensor_list, value))
203 syslog (LOG_ERR, "sensors plugin: "
204 "Cannot add value to ignorelist.");
208 else if (strcasecmp (key, "IgnoreSelected") == 0)
210 ignorelist_set_invert (sensor_list, 1);
211 if ((strcasecmp (value, "True") == 0)
212 || (strcasecmp (value, "Yes") == 0)
213 || (strcasecmp (value, "On") == 0))
214 ignorelist_set_invert (sensor_list, 0);
224 void sensors_free_features (void)
226 featurelist_t *thisft;
227 featurelist_t *nextft;
229 if (first_feature == NULL)
234 for (thisft = first_feature; thisft != NULL; thisft = nextft)
236 nextft = thisft->next;
239 first_feature = NULL;
242 static void sensors_load_conf (void)
245 featurelist_t *last_feature = NULL;
246 featurelist_t *new_feature = NULL;
248 const sensors_chip_name *chip;
251 const sensors_feature_data *data;
252 int data_num0, data_num1;
257 status = stat (conffile, &statbuf);
260 syslog (LOG_ERR, "sensors plugin: stat (%s) failed: %s",
261 conffile, strerror (errno));
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 syslog (LOG_NOTICE, "sensors plugin: Reloading config from %s",
273 sensors_free_features ();
274 sensors_config_mtime = 0;
277 fh = fopen (conffile, "r");
280 syslog (LOG_ERR, "sensors plugin: fopen(%s) failed: %s",
281 conffile, strerror(errno));
285 status = sensors_init (fh);
289 syslog (LOG_ERR, "sensors plugin: Cannot initialize sensors. "
290 "Data will not be collected.");
294 sensors_config_mtime = statbuf.st_mtime;
297 while ((chip = sensors_get_detected_chips (&chip_num)) != NULL)
300 data_num0 = data_num1 = 0;
302 while ((data = sensors_get_all_features (*chip, &data_num0, &data_num1))
307 /* "master features" only */
308 if (data->mapping != SENSORS_NO_MAPPING)
311 /* Only known features */
312 for (i = 0; known_features[i].type >= 0; i++)
314 if (strcmp (data->name, known_features[i].label) != 0)
317 /* skip ignored in sensors.conf */
318 if (sensors_get_ignored (*chip, data->number) == 0)
321 DBG ("Adding feature: %s-%s-%s",
323 sensor_to_type[known_features[i].type],
326 if ((new_feature = (featurelist_t *) malloc (sizeof (featurelist_t))) == NULL)
328 DBG ("malloc: %s", strerror (errno));
329 syslog (LOG_ERR, "sensors plugin: malloc: %s",
334 new_feature->chip = chip;
335 new_feature->data = data;
336 new_feature->type = known_features[i].type;
337 new_feature->next = NULL;
339 if (first_feature == NULL)
341 first_feature = new_feature;
342 last_feature = new_feature;
346 last_feature->next = new_feature;
347 last_feature = new_feature;
350 /* stop searching known features at first found */
353 } /* while sensors_get_all_features */
354 } /* while sensors_get_detected_chips */
356 if (first_feature == NULL)
359 syslog (LOG_INFO, "sensors plugin: lm_sensors reports no "
360 "features. Data will not be collected.");
362 } /* void sensors_load_conf */
364 static int sensors_shutdown (void)
366 sensors_free_features ();
367 ignorelist_free (sensor_list);
370 } /* int sensors_shutdown */
372 static void sensors_submit (const char *plugin_instance,
373 const char *type, const char *type_instance,
377 value_list_t vl = VALUE_LIST_INIT;
379 if (ignorelist_match (sensor_list, type_instance))
382 values[0].gauge = val;
386 vl.time = time (NULL);
387 strcpy (vl.host, hostname_g);
388 strcpy (vl.plugin, "sensors");
389 strcpy (vl.plugin_instance, plugin_instance);
390 strcpy (vl.type_instance, type_instance);
392 plugin_dispatch_values (type, &vl);
393 } /* void sensors_submit */
395 static int sensors_read (void)
397 featurelist_t *feature;
400 char plugin_instance[DATA_MAX_NAME_LEN];
401 char type_instance[DATA_MAX_NAME_LEN];
403 sensors_load_conf ();
405 for (feature = first_feature; feature != NULL; feature = feature->next)
407 if (sensors_get_feature (*feature->chip, feature->data->number, &value) < 0)
410 /* full chip name logic borrowed from lm_sensors */
411 if (feature->chip->bus == SENSORS_CHIP_NAME_BUS_ISA)
413 if (snprintf (plugin_instance, DATA_MAX_NAME_LEN, "%s-isa-%04x",
414 feature->chip->prefix,
419 else if (feature->chip->bus == SENSORS_CHIP_NAME_BUS_DUMMY)
421 if (snprintf (plugin_instance, 512, "%s-%s-%04x",
422 feature->chip->prefix,
423 feature->chip->busname,
430 if (snprintf (plugin_instance, 512, "%s-i2c-%d-%02x",
431 feature->chip->prefix,
438 strncpy (type_instance, feature->data->name, DATA_MAX_NAME_LEN);
440 sensors_submit (plugin_instance,
441 sensor_to_type[feature->type],
444 } /* for feature = first_feature .. NULL */
447 } /* int sensors_read */
448 #endif /* SENSORS_HAVE_READ */
450 void module_register (void)
452 plugin_register_data_set (&fanspeed_ds);
453 plugin_register_data_set (&temperature_ds);
454 plugin_register_data_set (&voltage_ds);
456 #if SENSORS_HAVE_READ
457 plugin_register_config ("sensors", sensors_config,
458 config_keys, config_keys_num);
459 plugin_register_read ("sensors", sensors_read);
460 plugin_register_shutdown ("sensors", sensors_shutdown);
462 } /* void module_register */