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22 * @file sensor/sensor_util_lib.c
23 * @brief senor utilities
24 * @author Omar Tarabai
27 #ifndef GNUNET_SENSOR_UTIL_LIB_H
28 #define GNUNET_SENSOR_UTIL_LIB_H
33 #if 0 /* keep Emacsens' auto-indent happy */
39 * Structure containing sensor definition
41 struct GNUNET_SENSOR_SensorInfo
45 * The configuration handle
46 * carrying sensor information
48 struct GNUNET_CONFIGURATION_Handle *cfg;
56 * Path to definition file
61 * First part of version number
63 uint16_t version_major;
66 * Second part of version number
68 uint16_t version_minor;
76 * Sensor currently enabled
81 * Category under which the sensor falls (e.g. tcp, datastore)
86 * When does the sensor become active
88 struct GNUNET_TIME_Absolute *start_time;
91 * When does the sensor expire
93 struct GNUNET_TIME_Absolute *end_time;
96 * Time interval to collect sensor information (e.g. every 1 min)
98 struct GNUNET_TIME_Relative interval;
101 * Lifetime of an information sample after which it is deleted from storage
102 * If not supplied, will default to the interval value
104 struct GNUNET_TIME_Relative lifetime;
107 * A set of required peer capabilities for the sensor to collect meaningful information (e.g. ipv6)
112 * Either "gnunet-statistics" or external "process"
117 * Name of the GNUnet service that is the source for the gnunet-statistics entry
119 char *gnunet_stat_service;
122 * Name of the gnunet-statistics entry
124 char *gnunet_stat_name;
127 * Handle to statistics get request (OR GNUNET_SCHEDULER_NO_TASK)
129 struct GNUNET_STATISTICS_GetHandle *gnunet_stat_get_handle;
132 * Name of the external process to be executed
137 * Arguments to be passed to the external process
142 * Handle to the external process
144 struct GNUNET_OS_CommandHandle *ext_cmd;
147 * Did we already receive a value
148 * from the currently running external
149 * proccess ? #GNUNET_YES / #GNUNET_NO
151 int ext_cmd_value_received;
154 * The output datatype to be expected
156 char *expected_datatype;
159 * Peer-identity of peer running collection point
161 struct GNUNET_PeerIdentity *collection_point;
164 * Do we report received sensor values to collection point?
165 * #GNUNET_YES / #GNUNET_NO
170 * Time interval to send sensor values to collection point (e.g. every 30 mins)
172 struct GNUNET_TIME_Relative value_reporting_interval;
175 * Do we report anomalies to collection point?
176 * #GNUNET_YES / #GNUNET_NO
178 int report_anomalies;
181 * Execution task (OR GNUNET_SCHEDULER_NO_TASK)
183 GNUNET_SCHEDULER_TaskIdentifier execution_task;
186 * Is the sensor being executed
192 GNUNET_NETWORK_STRUCT_BEGIN
195 * Used to communicate brief information about a sensor.
197 struct GNUNET_SENSOR_SensorBriefMessage
201 * GNUNET general message header.
203 struct GNUNET_MessageHeader header;
206 * Size of sensor name string, allocated at position 0 after this struct.
211 * First part of sensor version number
213 uint16_t version_major;
216 * Second part of sensor version number
218 uint16_t version_minor;
223 * Used to communicate full information about a sensor.
225 struct GNUNET_SENSOR_SensorFullMessage
229 * GNUNET general message header.
231 struct GNUNET_MessageHeader header;
234 * Size of sensor name.
235 * Name allocated at position 0 after this struct.
237 uint16_t sensorname_size;
240 * Size of the sensor definition file carrying full sensor information.
241 * The file content allocated at position 1 after this struct.
243 uint16_t sensorfile_size;
246 * Name of the file (usually script) associated with this sensor.
247 * At the moment we only support having one file per sensor.
248 * The file name is allocated at position 2 after this struct.
250 uint16_t scriptname_size;
253 * Size of the file (usually script) associated with this sensor.
254 * The file content is allocated at position 3 after this struct.
256 uint16_t scriptfile_size;
261 * Used to communicate sensor values to
262 * collection points (SENSORDASHBAORD service)
264 struct GNUNET_SENSOR_ValueMessage
268 * GNUNET general message header
270 struct GNUNET_MessageHeader header;
273 * Hash of sensor name
275 struct GNUNET_HashCode sensorname_hash;
278 * First part of sensor version number
280 uint16_t sensorversion_major;
283 * Second part of sensor version number
285 uint16_t sensorversion_minor;
288 * Timestamp of recorded reading
290 struct GNUNET_TIME_Absolute timestamp;
293 * Size of sensor value, allocated at poistion 0 after this struct
300 * Message carrying an anomaly status change report
302 struct GNUNET_SENSOR_AnomalyReportMessage
308 struct GNUNET_MessageHeader header;
311 * Hash of sensor name
313 struct GNUNET_HashCode sensorname_hash;
316 * First part of sensor version number
318 uint16_t sensorversion_major;
321 * Second part of sensor version name
323 uint16_t sensorversion_minor;
331 * Percentage of neighbors reported the same anomaly
333 float anomalous_neighbors;
337 GNUNET_NETWORK_STRUCT_END
340 * Given two version numbers as major and minor, compare them.
342 * @param v1_major First part of first version number
343 * @param v1_minor Second part of first version number
344 * @param v2_major First part of second version number
345 * @param v2_minor Second part of second version number
348 GNUNET_SENSOR_version_compare (uint16_t v1_major, uint16_t v1_minor,
349 uint16_t v2_major, uint16_t v2_minor);
353 * Reads sensor definitions from given sensor directory.
355 * @param sensordir Path to sensor directory.
356 * @return a multihashmap of loaded sensors
358 struct GNUNET_CONTAINER_MultiHashMap *
359 GNUNET_SENSOR_load_all_sensors (char *sensor_dir);
363 * Get path to the default directory containing the sensor definition files with
364 * a trailing directory separator.
366 * @return Default sensor files directory full path
369 GNUNET_SENSOR_get_default_sensor_dir ();
373 * Destroys a group of sensors in a hashmap and the hashmap itself
375 * @param sensors hashmap containing the sensors
378 GNUNET_SENSOR_destroy_sensors (struct GNUNET_CONTAINER_MultiHashMap *sensors);
380 #if 0 /* keep Emacsens' auto-indent happy */
387 /* ifndef GNUNET_SENSOR_UTIL_LIB_H */
389 /* end of gnunet_sensor_util_lib.h */