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.TH "DLT.CONF" "5" "" "" ""
.hy
.SH NAME
.PP
\f[B]dlt.conf\f[R] - DLT daemon configuration file
.SH DESCRIPTION
.PP
The DLT daemon is the central application which gathers logs and traces
from different applications, stores them temporarily or permanently and
transfers them to a DLT client application, which could run directly on
the GENIVI system or more likely on some external tester device.
.PP
The configuration file dlt.conf allows to configure the different
runtime behaviour of the dlt-daemon.
It is loaded during startup of dlt-daemon.
.SH GENERAL OPTIONS
.SS Verbose
.PP
Start daemon in debug mode, so that all internal debug information is
printed out on the console.
.IP
.nf
\f[C]
Default: Off
\f[R]
.fi
.SS Daemonize
.PP
If set to 1 DLT daemon is started in background as daemon.
This option is only needed in System V init systems.
In systemd based startup systems the daemon is started by spawning own
process.
.IP
.nf
\f[C]
Default: 0
\f[R]
.fi
.SS SendSerialHeader
.PP
If set to 1 DLT daemon sends each DLT message to the client with
prepanding the serial header \[lq]DLS0x01\[rq].
.IP
.nf
\f[C]
Default: 0
\f[R]
.fi
.SS SendContextRegistration
.PP
If set to 1 each context which is registered from an application in the
DLT daemon generates a message to inform the DLT client about the new
context.
.IP
.nf
\f[C]
Default: 1
\f[R]
.fi
.SS SendMessageTime
.PP
If set to 1 DLt daemon sends each second a DLT control message to the
client with the current timestamp from the system.
.IP
.nf
\f[C]
Default: 0
\f[R]
.fi
.SS ECUId
.PP
This value sets the ECU Id, which is sent with each DLT message.
.IP
.nf
\f[C]
Default: ECU1
\f[R]
.fi
.SS SharedMemorySize
.PP
This value sets the size of the shared memory, which is used to exchange
DLT messages between applications and daemon.
This value is defined in bytes.
If this value is changed the system must be rebooted to take effect.
.IP
.nf
\f[C]
Default: 100000
\f[R]
.fi
.SS PersistanceStoragePath
.PP
This is the directory path, where the DLT daemon stores its runtime
configuration.
Runtime configuration includes stored log levels, trace status and
changed logging mode.
.IP
.nf
\f[C]
Default: /tmp
\f[R]
.fi
.SS LoggingMode
.PP
The logging console for internal logging of dlt-daemon.
0 = log to stdout, 1 = log to syslog, 2 = log to file (see
LoggingFilename), 3 = log to stderr
.IP
.nf
\f[C]
Default: 0
\f[R]
.fi
.SS LoggingLevel
.PP
The internal log level, up to which logs are written.
LOG_EMERG = 0, LOG_ALERT = 1, LOG_CRIT = 2, LOG_ERR = 3, LOG_WARNING =
4, LOG_NOTICE = 5, LOG_INFO = 6, LOG_DEBUG = 7
.IP
.nf
\f[C]
Default: 6
\f[R]
.fi
.SS LoggingFilename
.PP
If LoggingMode is set to 2 logs are written to the file path given here.
.IP
.nf
\f[C]
Default: /tmp/dlt.log
\f[R]
.fi
.SS TimeOutOnSend
.PP
Socket timeout in seconds for sending to clients.
.IP
.nf
\f[C]
Default: 4
\f[R]
.fi
.SS RingbufferMinSize
.PP
The minimum size of the Ringbuffer, used for storing temporary DLT
messages, until client is connected.
.IP
.nf
\f[C]
Default: 500000
\f[R]
.fi
.SS RingbufferMaxSize
.PP
The max size of the Ringbuffer, used for storing temporary DLT messages,
until client is connected.
.IP
.nf
\f[C]
Default: 10000000
\f[R]
.fi
.SS RingbufferStepSize
.PP
The step size the Ringbuffer is increased, used for storing temporary
DLT messages, until client is connected.
.IP
.nf
\f[C]
Default: 500000
\f[R]
.fi
.SS Daemon FIFOSize
.PP
The size of Daemon FIFO (MinSize: depend on pagesize of system, MaxSize:
please check \f[V]/proc/sys/fs/pipe-max-size\f[R]) This is only
supported for Linux.
.IP
.nf
\f[C]
Default: 65536
\f[R]
.fi
.SS ContextLogLevel
.PP
Initial log-level that is sent when an application registers.
DLT_LOG_OFF = 0, DLT_LOG_FATAL = 1, DLT_LOG_ERROR = 2, DLT_LOG_WARN = 3,
DLT_LOG_INFO = 4, DLT_LOG_DEBUG = 5, DLT_LOG_VERBOSE = 6
.IP
.nf
\f[C]
Default: 4
\f[R]
.fi
.SS ContextTraceStatus
.PP
Initial trace-status that is sent when an application registers.
DLT_TRACE_STATUS_OFF = 0, DLT_TRACE_STATUS_ON = 1
.IP
.nf
\f[C]
Default: 0
\f[R]
.fi
.SS ForceContextLogLevelAndTraceStatus
.PP
Force log level and trace status of contexts to not exceed
\[lq]ContextLogLevel\[rq] and \[lq]ContextTraceStatus\[rq].
If set to 1 (ON) whenever a context registers or changes the log-level
it has to be lower or equal to ContextLogLevel.
.IP
.nf
\f[C]
Default: 0
\f[R]
.fi
.SS InjectionMode
.PP
If set to 0, the injection mode (see here) is disabled.
.IP
.nf
\f[C]
Default: 1
\f[R]
.fi
.SH GATEWAY CONFIGURATION
.SS GatewayMode
.PP
Enable Gateway mode
.IP
.nf
\f[C]
Default: 0
\f[R]
.fi
.SS GatewayConfigFile
.PP
Read gateway configuration from another location
.IP
.nf
\f[C]
Default: /etc/dlt_gateway.conf
\f[R]
.fi
.SH Permission configuration
.PP
DLT daemon runs with e.g.
User: genivi_dlt Group: genivi_dlt
.PP
DLT user applications run with different user and group than dlt-daemon
but with supplimentory group: dlt_user_apps_group
.PP
/dlt FIFO will be created by dlt-daemon with User: genivi_dlt Group:
dlt_user_apps_group Permission: 620
.PP
so that only dlt-daemon can read and only processes in
dlt_user_apps_group can write.
.PP
/dltpipes will be created by dlt-daemon with User: genivi_dlt Group:
genivi_dlt Permission: 3733 (i.e Sticky bit and SGID turned on)
.PP
/dltpipes/dlt FIFO will be created by dlt application (user lib) with
User: Group: genivi_dlt (inherited from dltpipes/ due to SGID)
Permission: 620
.PP
Thus DLT user applications (and also or attackers) can create the dlt
FIFO (for communication from dlt-daemon to DLT user application) under
/dltpipes/.
Since sticky bit is set the applications who creates the FIFO can only
rename/delete it.
.PP
Since SGID of /dltpipes is set the group of dlt FIFO will be genivi_dlt
which enables dlt daemon to have write permission on all the dlt FIFO.
.PP
One dlt user application cannot access dlt FIFO created by other dlt
user application(if they run with different user).
.PP
Owner group of daemon FIFO directory(Default: /tmp/dlt) (If not set,
primary group of dlt-daemon process is used).
Application should have write permission to this group for tracing into
dlt.
For this opton to work, dlt-daemon should have this group in it\[cq]s
supplementary group.
.SS DaemonFifoGroup
.PP
Owner group of daemon FIFO directory (If not set, primary group of
dlt-daemon process is used) Application should have write permission to
this group for tracing into dlt For this opton to work, dlt-daemon
should have this group in it\[cq]s Supplementary group
.IP
.nf
\f[C]
Default: group of dlt-daemon process (/tmp/dlt)
\f[R]
.fi
.SH CONTROL APPLICATION OPTIONS
.SS ControlSocketPath
.PP
Path to control socket.
.IP
.nf
\f[C]
Default: /tmp/dlt-ctrl.sock
\f[R]
.fi
.SH OFFLINE TRACE OPTIONS
.SS OfflineTraceDirectory
.PP
Store DLT messages to local directory, if not set offline Trace is off.
.IP
.nf
\f[C]
Default: /tmp
\f[R]
.fi
.SS OfflineTraceFileSize
.PP
This value defines the max size of a offline trace file, if offline
trace is enabled.
This value is defined in bytes.
If the files size of the current used log file is exceeded, a new log
file is created.
.IP
.nf
\f[C]
Default: 1000000
\f[R]
.fi
.SS OfflineTraceMaxSize
.PP
This value defines the max offline Trace memory size, if offline trace
is enabled.
This value is defined in bytes.
If the overall offline trace size is excedded, the oldest log files are
deleted, until a new trace file fits the overall offline trace max size.
.IP
.nf
\f[C]
Default: 4000000
\f[R]
.fi
.SS OfflineTraceFileNameTimestampBased
.PP
Filename timestamp based or index based.
1 = timestamp based, 0 = index based
.IP
.nf
\f[C]
Default: Function is disabled
\f[R]
.fi
.SH LOCAL CONSOLE OUTPUT OPTIONS
.SS PrintASCII
.PP
Prints each received DLT message from the application in ASCII to the
local console.
This option should only be anabled for debugging purpose.
.IP
.nf
\f[C]
Default: Function is disabled
\f[R]
.fi
.SS PrintHex
.PP
Prints each received DLT message from the application in ASCII to the
local console.
The payload is printed in Hex.
This option should only be anabled for debugging purpose.
.IP
.nf
\f[C]
Default: Function is disabled
\f[R]
.fi
.SS PrintHeadersOnly
.PP
Prints each received DLT message from the application in ASCII to the
local console.
Only the header is printed.
This option should only be anabled for debugging purpose.
.IP
.nf
\f[C]
Default: Function is disabled
\f[R]
.fi
.SH SERIAL CLIENT OPTIONS
.SS RS232DeviceName
.PP
If this value is set to a serial device name, e.g.\ /dev/ttyS0, a serial
port is used for logging to a client.
.IP
.nf
\f[C]
Default: Serial port for logging is disabled
\f[R]
.fi
.SS RS232Baudrate
.PP
The used serial baud rate, if serial loggin is enabled.
The RS232DeviceName must be set to enable serial logging.
.IP
.nf
\f[C]
Default: 115200
\f[R]
.fi
.SS RS232SyncSerialHeader
.PP
If serial logging is enabled, each received DLT message is checked to
contain a serial header.
If the DLT message contains no serial header, the message is ignored.
.IP
.nf
\f[C]
Default: Function is disabled
\f[R]
.fi
.SH TCP CLIENT OPTIONS
.SS TCPSyncSerialHeader
.PP
Each received DLT message on a TCP connection is checked to contain a
serial header.
If the DLT message contains no serial header, the message is ignored.
.IP
.nf
\f[C]
Default: Function is disabled
\f[R]
.fi
.SH ECU SOFTWARE VERSION OPTIONS
.SS SendECUSoftwareVersion
.PP
Periodically send ECU version info.
0 = disabled, 1 = enabled
.IP
.nf
\f[C]
Default: Function is disabled
\f[R]
.fi
.SH PathToECUSoftwareVersion
.PP
Absolute path to file storing version information - if disabled the DLT
version will be send.
.IP
.nf
\f[C]
Default: Function is disabled.
\f[R]
.fi
.SH TIMEZONE INFO OPTIONS
.SH SendTimezone
.PP
Periodically send timezone info.
0 = disabled, 1 = enabled
.IP
.nf
\f[C]
Default: Function is disabled
\f[R]
.fi
.SH OFFLINE LOGSTORAGE OPTIONS
.SS OfflineLogstorageMaxDevices
.PP
Maximum devices to be used as offline logstorage devices.
0 = disabled, 1 ..
DLT_OFFLINE_LOGSTORAGE_MAX_DEVICES
.IP
.nf
\f[C]
Default: 0 (Function is disabled)
\f[R]
.fi
.SS OfflineLogstorageDirPath
.PP
Path to store DLT offline log storage messages.
.IP
.nf
\f[C]
Default: off
\f[R]
.fi
.SS OfflineLogstorageTimestamp
.PP
Appends timestamp in log file name.
0 = disabled, 1 = enabled
.IP
.nf
\f[C]
Default: 0
\f[R]
.fi
.SS OfflineLogstorageDelimiter
.PP
Appends delimiter in log file name, only punctuation characters allowed.
.IP
.nf
\f[C]
Default: _
\f[R]
.fi
.SS OfflineLogstorageMaxCounter
.PP
Wrap around value for log file count in file name.
.IP
.nf
\f[C]
Default: UINT_MAX
\f[R]
.fi
.SS OfflineLogstorageCacheSize
.PP
Maximal used memory for log storage cache in KB.
.IP
.nf
\f[C]
Default: 30000 KB
\f[R]
.fi
.SS UDPConnectionSetup
.PP
Enable or disable UDP connection.
0 = disabled, 1 = enabled
.SS UDPMulticastIPAddress
.PP
The address on which daemon multicasts the log messages
.SS UDPMulticastIPPort
.PP
The Multicase IP port.
Default: 3491
.SH AUTHOR
.PP
Alexander Wenzel (alexander.aw.wenzel (at) bmw (dot) de)
.SH COPYRIGHT
.PP
Copyright (C) 2015 BMW AG.
License MPL-2.0: Mozilla Public License version 2.0
<http://mozilla.org/MPL/2.0/>.
.SH BUGS
.PP
See Github issue: <https://github.com/GENIVI/dlt-daemon/issues>
.SH SEE ALSO
.PP
\f[B]dlt-daemon(1)\f[R], \f[B]dlt-system(1)\f[R]