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gerrit.nordix.org / codeaurora / busybox / 345e093c2910e9e837de5b7cc5fb46752351f84d / . / sysklogd / Config.in
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Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]1#
2# For a description of the syntax of this configuration file,
3# see scripts/kbuild/config-language.txt.
4#
5
6menu "System Logging Utilities"
7
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]8config SYSLOGD
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]9 bool "syslogd"
10 default n
11 help
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]12 The syslogd utility is used to record logs of all the
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000[diff] [blame]13 significant events that occur on a system. Every
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]14 message that is logged records the date and time of the
15 event, and will generally also record the name of the
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000[diff] [blame]16 application that generated the message. When used in
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]17 conjunction with klogd, messages from the Linux kernel
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000[diff] [blame]18 can also be recorded. This is terribly useful,
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]19 especially for finding what happened when something goes
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000[diff] [blame]20 wrong. And something almost always will go wrong if
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]21 you wait long enough....
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]22
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]23config FEATURE_ROTATE_LOGFILE
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]24 bool "Rotate message files"
Eric Andersen29c77f72003-10-09 09:43:18 +0000[diff] [blame]25 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]26 depends on SYSLOGD
Eric Andersen29c77f72003-10-09 09:43:18 +0000[diff] [blame]27 help
28 This enables syslogd to rotate the message files
29 on his own. No need to use an external rotatescript.
30
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]31config FEATURE_REMOTE_LOG
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]32 bool "Remote Log support"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]33 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]34 depends on SYSLOGD
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]35 help
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]36 When you enable this feature, the syslogd utility can
37 be used to send system log messages to another system
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000[diff] [blame]38 connected via a network. This allows the remote
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]39 machine to log all the system messages, which can be
40 terribly useful for reducing the number of serial
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000[diff] [blame]41 cables you use. It can also be a very good security
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]42 measure to prevent system logs from being tampered with
43 by an intruder.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]44
Denis Vlasenkobe048f22008-02-26 20:13:52 +0000[diff] [blame]45config FEATURE_SYSLOGD_DUP
46 bool "Support -D (drop dups) option"
47 default n
48 depends on SYSLOGD
49 help
50 Option -D instructs syslogd to drop consecutive messages
51 which are totally the same.
52
Janne Kiviluotoc897dfe2010-03-31 15:58:58 +0200[diff] [blame]53config FEATURE_SYSLOGD_READ_BUFFER_SIZE
Denys Vlasenko345e0932010-03-31 16:03:56 +0200[diff] [blame^]54 int "Read buffer size in bytes"
55 default 256
56 range 256 20000
57 depends on SYSLOGD
58 help
59 This option sets the size of the syslog read buffer.
60 Actual memory usage increases around five times the
61 change done here.
Janne Kiviluotoc897dfe2010-03-31 15:58:58 +0200[diff] [blame]62
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]63config FEATURE_IPC_SYSLOG
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]64 bool "Circular Buffer support"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]65 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]66 depends on SYSLOGD
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]67 help
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]68 When you enable this feature, the syslogd utility will
69 use a circular buffer to record system log messages.
70 When the buffer is filled it will continue to overwrite
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000[diff] [blame]71 the oldest messages. This can be very useful for
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]72 systems with little or no permanent storage, since
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]73 otherwise system logs can eventually fill up your
74 entire filesystem, which may cause your system to
75 break badly.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]76
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]77config FEATURE_IPC_SYSLOG_BUFFER_SIZE
Denis Vlasenko4ee7cd42008-03-17 09:13:22 +0000[diff] [blame]78 int "Circular buffer size in Kbytes (minimum 4KB)"
Eric Andersend4a5e252003-12-19 11:32:14 +0000[diff] [blame]79 default 16
Bernhard Reutner-Fischerbb4b9f12007-06-07 13:22:56 +0000[diff] [blame]80 range 4 2147483647
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]81 depends on FEATURE_IPC_SYSLOG
Eric Andersend4a5e252003-12-19 11:32:14 +0000[diff] [blame]82 help
83 This option sets the size of the circular buffer
84 used to record system log messages.
85
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]86config LOGREAD
Rob Landley2ec922e2006-04-13 23:22:16 +0000[diff] [blame]87 bool "logread"
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]88 default y
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]89 depends on FEATURE_IPC_SYSLOG
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]90 help
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]91 If you enabled Circular Buffer support, you almost
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000[diff] [blame]92 certainly want to enable this feature as well. This
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]93 utility will allow you to read the messages that are
94 stored in the syslogd circular buffer.
95
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]96config FEATURE_LOGREAD_REDUCED_LOCKING
Denis Vlasenko4ee7cd42008-03-17 09:13:22 +0000[diff] [blame]97 bool "Double buffering"
Eric Andersend4a5e252003-12-19 11:32:14 +0000[diff] [blame]98 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]99 depends on LOGREAD
Eric Andersend4a5e252003-12-19 11:32:14 +0000[diff] [blame]100 help
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000[diff] [blame]101 'logread' ouput to slow serial terminals can have
Eric Andersend4a5e252003-12-19 11:32:14 +0000[diff] [blame]102 side effects on syslog because of the semaphore.
Eric Andersenc7bda1c2004-03-15 08:29:22 +0000[diff] [blame]103 This option make logread to double buffer copy
104 from circular buffer, minimizing semaphore
Eric Andersend4a5e252003-12-19 11:32:14 +0000[diff] [blame]105 contention at some minor memory expense.
106
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]107config KLOGD
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]108 bool "klogd"
109 default n
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]110 help
Eric Andersen88c916b2003-10-22 09:58:56 +0000[diff] [blame]111 klogd is a utility which intercepts and logs all
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]112 messages from the Linux kernel and sends the messages
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000[diff] [blame]113 out to the 'syslogd' utility so they can be logged. If
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]114 you wish to record the messages produced by the kernel,
115 you should enable this option.
116
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]117config LOGGER
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]118 bool "logger"
119 default n
Denis Vlasenko7d219aa2006-10-05 10:17:08 +0000[diff] [blame]120 select FEATURE_SYSLOG
Eric Andersen08f4a4c2003-02-28 07:20:55 +0000[diff] [blame]121 help
Eric Andersen480f1532003-07-26 08:20:46 +0000[diff] [blame]122 The logger utility allows you to send arbitrary text
123 messages to the system log (i.e. the 'syslogd' utility) so
Bernhard Reutner-Fischer3e8669f2008-07-22 18:27:53 +0000[diff] [blame]124 they can be logged. This is generally used to help locate
Eric Andersen480f1532003-07-26 08:20:46 +0000[diff] [blame]125 problems that occur within programs and scripts.
Eric Andersenc9f20d92002-12-05 08:41:41 +0000[diff] [blame]126
127endmenu
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