2 * @licence app begin@
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3 * Copyright (C) 2012 BMW AG
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5 * This file is part of GENIVI Project Dlt - Diagnostic Log and Trace console apps.
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7 * Contributions are licensed to the GENIVI Alliance under one or more
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8 * Contribution License Agreements.
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11 * This Source Code Form is subject to the terms of the
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12 * Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with
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13 * this file, You can obtain one at http://mozilla.org/MPL/2.0/.
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16 * \author Alexander Wenzel <alexander.aw.wenzel@bmw.de> BMW 2011-2012
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18 * \file dlt_daemon_common.h
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19 * For further information see http://www.genivi.org/.
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24 /*******************************************************************************
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26 ** SRC-MODULE: dlt_daemon_common.h **
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28 ** TARGET : linux **
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32 ** AUTHOR : Alexander Wenzel Alexander.AW.Wenzel@bmw.de **
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39 ** PLATFORM DEPENDANT [yes/no]: yes **
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41 ** TO BE CHANGED BY USER [yes/no]: no **
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43 *******************************************************************************/
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45 /*******************************************************************************
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46 ** Author Identity **
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47 ********************************************************************************
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49 ** Initials Name Company **
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50 ** -------- ------------------------- ---------------------------------- **
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51 ** aw Alexander Wenzel BMW **
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52 ** mk Markus Klein Fraunhofer ESK **
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53 *******************************************************************************/
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55 /*******************************************************************************
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56 ** Revision Control History **
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57 *******************************************************************************/
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60 * $LastChangedRevision: 1670 $
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61 * $LastChangedDate: 2011-04-08 15:12:06 +0200 (Fr, 08. Apr 2011) $
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63 Initials Date Comment
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64 aw 15.02.2010 initial
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67 #ifndef DLT_DAEMON_COMMON_H
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68 #define DLT_DAEMON_COMMON_H
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71 \defgroup daemonapi DLT Daemon API
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72 \addtogroup daemonapi
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77 #include <semaphore.h>
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78 #include "dlt_common.h"
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79 #include "dlt_user.h"
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85 #define DLT_DAEMON_RINGBUFFER_MIN_SIZE 500000 /**< Ring buffer size for storing log messages while no client is connected */
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86 #define DLT_DAEMON_RINGBUFFER_MAX_SIZE 10000000 /**< Ring buffer size for storing log messages while no client is connected */
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87 #define DLT_DAEMON_RINGBUFFER_STEP_SIZE 500000 /**< Ring buffer size for storing log messages while no client is connected */
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89 #define DLT_DAEMON_STORE_TO_BUFFER -2 /**< Constant value to identify the command "store to buffer" */
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91 /* Use a semaphore or mutex from your OS to prevent concurrent access to the DLT buffer. */
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93 #define DLT_DAEMON_SEM_LOCK() { sem_wait(&dlt_daemon_mutex); }
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94 #define DLT_DAEMON_SEM_FREE() { sem_post(&dlt_daemon_mutex); }
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95 extern sem_t dlt_daemon_mutex;
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99 * The parameters of a daemon application.
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103 char apid[DLT_ID_SIZE]; /**< application id */
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104 pid_t pid; /**< process id of user application */
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105 int user_handle; /**< connection handle for connection to user application */
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106 char *application_description; /**< context description */
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107 int num_contexts; /**< number of contexts for this application */
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108 } DltDaemonApplication;
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111 * The parameters of a daemon context.
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115 char apid[DLT_ID_SIZE]; /**< application id */
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116 char ctid[DLT_ID_SIZE]; /**< context id */
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117 int8_t log_level; /**< the current log level of the context */
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118 int8_t trace_status; /**< the current trace status of the context */
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119 int log_level_pos; /**< offset of context in context field on user application */
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120 int user_handle; /**< connection handle for connection to user application */
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121 char *context_description; /**< context description */
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122 } DltDaemonContext;
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125 * The parameters of a daemon.
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129 int num_contexts; /**< Total number of all contexts in all applications */
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130 DltDaemonContext *contexts; /**< Pointer to contexts */
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131 int num_applications; /**< Number of available application */
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132 DltDaemonApplication *applications; /**< Pointer to applications */
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133 int8_t default_log_level; /**< Default log level (of daemon) */
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134 int8_t default_trace_status; /**< Default trace status (of daemon) */
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135 int message_buffer_overflow; /**< Set to one, if buffer overflow has occured, zero otherwise */
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136 int runtime_context_cfg_loaded; /**< Set to one, if runtime context configuration has been loaded, zero otherwise */
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137 char ecuid[DLT_ID_SIZE]; /**< ECU ID of daemon */
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138 int sendserialheader; /**< 1: send serial header; 0 don't send serial header */
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139 int timingpackets; /**< 1: send continous timing packets; 0 don't send continous timing packets */
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140 DltBuffer client_ringbuffer; /**< Ring-buffer for storing received logs while no client connection is available */
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141 char runtime_application_cfg[PATH_MAX + 1]; /**< Path and filename of persistent application configuration. Set to path max, as it specifies a full path*/
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142 char runtime_context_cfg[PATH_MAX + 1]; /**< Path and filename of persistent context configuration */
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143 char runtime_configuration[PATH_MAX + 1]; /**< Path and filename of persistent configuration */
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144 DltUserLogMode mode; /**< Mode used for tracing: off, external, internal, both */
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145 char state; /**< state for tracing: 0 = no client connected, 1 = client connected */
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146 char *ECUVersionString; /**< Version string to send to client. Loaded from a file at startup. May be null. */
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150 * Initialise the dlt daemon structure
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151 * This function must be called before using further dlt daemon structure
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152 * @param daemon pointer to dlt daemon structure
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153 * @param runtime_directory Directory of persistent configuration
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154 * @param verbose if set to true verbose information is printed out.
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155 * @return negative value if there was an error
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157 int dlt_daemon_init(DltDaemon *daemon,const char *runtime_directory,int verbose);
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159 * De-Initialise the dlt daemon structure
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160 * @param daemon pointer to dlt daemon structure
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161 * @param verbose if set to true verbose information is printed out.
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162 * @return negative value if there was an error
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164 int dlt_daemon_free(DltDaemon *daemon,int verbose);
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167 * Add (new) application to internal application management
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168 * @param daemon pointer to dlt daemon structure
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169 * @param apid pointer to application id
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170 * @param pid process id of user application
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171 * @param description description of application
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172 * @param verbose if set to true verbose information is printed out.
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173 * @return Pointer to added context, null pointer on error
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175 DltDaemonApplication* dlt_daemon_application_add(DltDaemon *daemon,char *apid,pid_t pid,char *description, int verbose);
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177 * Delete application from internal application management
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178 * @param daemon pointer to dlt daemon structure
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179 * @param application pointer to application to be deleted
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180 * @param verbose if set to true verbose information is printed out.
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181 * @return negative value if there was an error
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183 int dlt_daemon_application_del(DltDaemon *daemon, DltDaemonApplication *application, int verbose);
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185 * Find application with specific application id
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186 * @param daemon pointer to dlt daemon structure
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187 * @param apid pointer to application id
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188 * @param verbose if set to true verbose information is printed out.
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189 * @return Pointer to application, null pointer on error or not found
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191 DltDaemonApplication* dlt_daemon_application_find(DltDaemon *daemon,char *apid,int verbose);
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193 * Load applications from file to internal context management
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194 * @param daemon pointer to dlt daemon structure
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195 * @param filename name of file to be used for loading
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196 * @param verbose if set to true verbose information is printed out.
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197 * @return negative value if there was an error
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199 int dlt_daemon_applications_load(DltDaemon *daemon,const char *filename, int verbose);
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201 * Save applications from internal context management to file
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202 * @param daemon pointer to dlt daemon structure
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203 * @param filename name of file to be used for saving
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204 * @param verbose if set to true verbose information is printed out.
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205 * @return negative value if there was an error
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207 int dlt_daemon_applications_save(DltDaemon *daemon,const char *filename, int verbose);
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209 * Invalidate all applications fd, if fd is reused
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210 * @param daemon pointer to dlt daemon structure
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211 * @param fd file descriptor
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212 * @param verbose if set to true verbose information is printed out.
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213 * @return negative value if there was an error
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215 int dlt_daemon_applications_invalidate_fd(DltDaemon *daemon,int fd,int verbose);
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217 * Clear all applications in internal application management
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218 * @param daemon pointer to dlt daemon structure
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219 * @param verbose if set to true verbose information is printed out.
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220 * @return negative value if there was an error
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222 int dlt_daemon_applications_clear(DltDaemon *daemon,int verbose);
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225 * Add (new) context to internal context management
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226 * @param daemon pointer to dlt daemon structure
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227 * @param apid pointer to application id
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228 * @param ctid pointer to context id
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229 * @param log_level log level of context
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230 * @param trace_status trace status of context
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231 * @param log_level_pos offset of context in context field on user application
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232 * @param user_handle connection handle for connection to user application
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233 * @param description description of context
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234 * @param verbose if set to true verbose information is printed out.
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235 * @return Pointer to added context, null pointer on error
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237 DltDaemonContext* dlt_daemon_context_add(DltDaemon *daemon,char *apid,char *ctid,int8_t log_level,int8_t trace_status,int log_level_pos, int user_handle,char *description,int verbose);
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239 * Delete context from internal context management
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240 * @param daemon pointer to dlt daemon structure
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241 * @param context pointer to context to be deleted
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242 * @param verbose if set to true verbose information is printed out.
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243 * @return negative value if there was an error
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245 int dlt_daemon_context_del(DltDaemon *daemon, DltDaemonContext* context, int verbose);
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247 * Find context with specific application id and context id
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248 * @param daemon pointer to dlt daemon structure
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249 * @param apid pointer to application id
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250 * @param ctid pointer to context id
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251 * @param verbose if set to true verbose information is printed out.
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252 * @return Pointer to context, null pointer on error or not found
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254 DltDaemonContext* dlt_daemon_context_find(DltDaemon *daemon,char *apid,char *ctid,int verbose);
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256 * Invalidate all contexts fd, if fd is reused
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257 * @param daemon pointer to dlt daemon structure
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258 * @param fd file descriptor
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259 * @param verbose if set to true verbose information is printed out.
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260 * @return negative value if there was an error
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262 int dlt_daemon_contexts_invalidate_fd(DltDaemon *daemon,int fd,int verbose);
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264 * Clear all contexts in internal context management
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265 * @param daemon pointer to dlt daemon structure
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266 * @param verbose if set to true verbose information is printed out.
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267 * @return negative value if there was an error
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269 int dlt_daemon_contexts_clear(DltDaemon *daemon,int verbose);
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271 * Load contexts from file to internal context management
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272 * @param daemon pointer to dlt daemon structure
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273 * @param filename name of file to be used for loading
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274 * @param verbose if set to true verbose information is printed out.
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275 * @return negative value if there was an error
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277 int dlt_daemon_contexts_load(DltDaemon *daemon,const char *filename, int verbose);
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279 * Save contexts from internal context management to file
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280 * @param daemon pointer to dlt daemon structure
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281 * @param filename name of file to be used for saving
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282 * @param verbose if set to true verbose information is printed out.
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283 * @return negative value if there was an error
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285 int dlt_daemon_contexts_save(DltDaemon *daemon,const char *filename, int verbose);
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287 * Load persistant configuration
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288 * @param daemon pointer to dlt daemon structure
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289 * @param filename name of file to be used for loading
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290 * @param verbose if set to true verbose information is printed out.
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291 * @return negative value if there was an error
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293 int dlt_daemon_configuration_load(DltDaemon *daemon,const char *filename, int verbose);
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295 * Save configuration persistantly
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296 * @param daemon pointer to dlt daemon structure
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297 * @param filename name of file to be used for saving
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298 * @param verbose if set to true verbose information is printed out.
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299 * @return negative value if there was an error
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301 int dlt_daemon_configuration_save(DltDaemon *daemon,const char *filename, int verbose);
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305 * Send user message DLT_USER_MESSAGE_LOG_LEVEL to user application
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306 * @param daemon pointer to dlt daemon structure
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307 * @param context pointer to context for response
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308 * @param verbose if set to true verbose information is printed out.
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309 * @return negative value if there was an error
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311 int dlt_daemon_user_send_log_level(DltDaemon *daemon,DltDaemonContext *context, int verbose);
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314 * Send user message DLT_USER_MESSAGE_LOG_STATE to user application
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315 * @param daemon pointer to dlt daemon structure
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316 * @param app pointer to application for response
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317 * @param verbose if set to true verbose information is printed out.
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318 * @return negative value if there was an error
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320 int dlt_daemon_user_send_log_state(DltDaemon *daemon,DltDaemonApplication *app,int verbose);
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323 * Send user messages to all user applications using default context, or trace status
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324 * to update those values
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325 * @param daemon pointer to dlt daemon structure
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326 * @param verbose if set to true verbose information is printed out.
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328 void dlt_daemon_user_send_default_update(DltDaemon *daemon, int verbose);
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331 * Send user messages to all user applications the log status
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332 * everytime the client is connected or disconnected.
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333 * @param daemon pointer to dlt daemon structure
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334 * @param verbose if set to true verbose information is printed out.
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336 void dlt_daemon_user_send_all_log_state(DltDaemon *daemon, int verbose);
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339 * Process received control message from dlt client
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340 * @param sock connection handle used for sending response
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341 * @param daemon pointer to dlt daemon structure
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342 * @param msg pointer to received control message
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343 * @param verbose if set to true verbose information is printed out.
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345 int dlt_daemon_control_process_control(int sock, DltDaemon *daemon, DltMessage *msg, int verbose);
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347 * Generate response to control message from dlt client
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348 * @param sock connection handle used for sending response
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349 * @param daemon pointer to dlt daemon structure
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350 * @param service_id service id of control message
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351 * @param status status of response (e.g. ok, not supported, error)
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352 * @param verbose if set to true verbose information is printed out.
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354 void dlt_daemon_control_service_response(int sock, DltDaemon *daemon, uint32_t service_id, int8_t status, int verbose);
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356 * Send out response message to dlt client
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357 * @param sock connection handle used for sending response
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358 * @param daemon pointer to dlt daemon structure
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359 * @param msg pointer to response message
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360 * @param appid pointer to application id to be used in response message
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361 * @param contid pointer to context id to be used in response message
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362 * @param verbose if set to true verbose information is printed out.
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364 void dlt_daemon_control_send_control_message(int sock, DltDaemon *daemon, DltMessage *msg, char* appid, char* contid, int verbose);
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367 * Process and generate response to received sw injection control message
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368 * @param sock connection handle used for sending response
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369 * @param daemon pointer to dlt daemon structure
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370 * @param msg pointer to received sw injection control message
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371 * @param verbose if set to true verbose information is printed out.
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373 void dlt_daemon_control_callsw_cinjection(int sock, DltDaemon *daemon, DltMessage *msg, int verbose);
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375 * Process and generate response to received set log level control message
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376 * @param sock connection handle used for sending response
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377 * @param daemon pointer to dlt daemon structure
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378 * @param msg pointer to received control message
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379 * @param verbose if set to true verbose information is printed out.
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381 void dlt_daemon_control_set_log_level(int sock, DltDaemon *daemon, DltMessage *msg, int verbose);
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383 * Process and generate response to received set trace status control message
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384 * @param sock connection handle used for sending response
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385 * @param daemon pointer to dlt daemon structure
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386 * @param msg pointer to received control message
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387 * @param verbose if set to true verbose information is printed out.
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389 void dlt_daemon_control_set_trace_status(int sock, DltDaemon *daemon, DltMessage *msg, int verbose);
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391 * Process and generate response to received set default log level control message
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392 * @param sock connection handle used for sending response
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393 * @param daemon pointer to dlt daemon structure
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394 * @param msg pointer to received control message
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395 * @param verbose if set to true verbose information is printed out.
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397 void dlt_daemon_control_set_default_log_level(int sock, DltDaemon *daemon, DltMessage *msg, int verbose);
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399 * Process and generate response to received set default trace status control message
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400 * @param sock connection handle used for sending response
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401 * @param daemon pointer to dlt daemon structure
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402 * @param msg pointer to received control message
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403 * @param verbose if set to true verbose information is printed out.
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405 void dlt_daemon_control_set_default_trace_status(int sock, DltDaemon *daemon, DltMessage *msg, int verbose);
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407 * Process and generate response to set timing packets control message
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408 * @param sock connection handle used for sending response
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409 * @param daemon pointer to dlt daemon structure
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410 * @param msg pointer to received control message
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411 * @param verbose if set to true verbose information is printed out.
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413 void dlt_daemon_control_set_timing_packets(int sock, DltDaemon *daemon, DltMessage *msg, int verbose);
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415 * Process and generate response to received get software version control message
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416 * @param sock connection handle used for sending response
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417 * @param daemon pointer to dlt daemon structure
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418 * @param verbose if set to true verbose information is printed out.
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420 void dlt_daemon_control_get_software_version(int sock, DltDaemon *daemon, int verbose);
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422 * Process and generate response to received get default log level control message
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423 * @param sock connection handle used for sending response
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424 * @param daemon pointer to dlt daemon structure
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425 * @param verbose if set to true verbose information is printed out.
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427 void dlt_daemon_control_get_default_log_level(int sock, DltDaemon *daemon, int verbose);
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429 * Process and generate response to received get log info control message
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430 * @param sock connection handle used for sending response
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431 * @param daemon pointer to dlt daemon structure
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432 * @param msg pointer to received control message
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433 * @param verbose if set to true verbose information is printed out.
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435 void dlt_daemon_control_get_log_info(int sock, DltDaemon *daemon, DltMessage *msg, int verbose);
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437 * Process and generate response to message buffer overflow control message
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438 * @param sock connection handle used for sending response
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439 * @param daemon pointer to dlt daemon structure
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440 * @param verbose if set to true verbose information is printed out.
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442 void dlt_daemon_control_message_buffer_overflow(int sock, DltDaemon *daemon, int verbose);
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444 * Process reset to factory default control message
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445 * @param daemon pointer to dlt daemon structure
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446 * @param filename name of file containing the runtime defaults for applications
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447 * @param filename1 name of file containing the runtime defaults for contexts
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448 * @param verbose if set to true verbose information is printed out.
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450 void dlt_daemon_control_reset_to_factory_default(DltDaemon *daemon,const char *filename, const char *filename1, int verbose);
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452 * Send time control message
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453 * @param sock connection handle used for sending response
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454 * @param daemon pointer to dlt daemon structure
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455 * @param verbose if set to true verbose information is printed out.
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457 void dlt_daemon_control_message_time(int sock, DltDaemon *daemon, int verbose);
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466 #endif /* DLT_DAEMON_COMMON_H */
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