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|
---------------------------------------------------------------------------
Version 5.9.0 [V5-DEVEL] (rgerhards), 2011-03-??
- this begins a new devel branch for v5
- added new config directive $InputTCPFlowControl to select if tcp
received messages shall be flagged as light delayable or not.
- enhanced omhdfs to support batching mode. This permits to increase
performance, as we now call the HDFS API with much larger message
sizes and far more infrequently
- bugfix: failover did not work correctly if repeated msg reduction was on
affected directive was: $ActionExecOnlyWhenPreviousIsSuspended on
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=236
---------------------------------------------------------------------------
Version 5.8.1 [V5-stable] (rgerhards), 2011-04-??
- bugfix: $myhostname not available in RainerScript (and no error message)
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=233
- bugfix: doc for impstats had wrong config statements
also, config statements were named a bit inconsistent, resolved that
problem by introducing an alias and only documenting the consistent
statements
Thanks to Marcin for bringing up this problem.
- bugfix: IPv6-address could not be specified in omrelp
this was due to improper parsing of ":"
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=250
---------------------------------------------------------------------------
Version 5.8.0 [V5-stable] (rgerhards), 2011-04-12
This is the new v5-stable branch, importing all feature from the 5.7.x
versions. To see what has changed in regard to the previous v5-stable,
check the Changelog for 5.7.x below.
- bugfix: race condition in deferred name resolution
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=238
Special thanks to Marcin for his persistence in helping to solve this
bug.
- bugfix: DA queue was never shutdown once it was started
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=241
---------------------------------------------------------------------------
Version 5.7.10 [V5-BETA] (rgerhards), 2011-03-29
- bugfix: ompgsql did not work properly with ANSI SQL strings
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=229
- bugfix: rsyslog did not build with --disable-regexp configure option
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=243
- bugfix: PRI was invalid on Solaris for message from local log socket
- enhance: added $BOM system property to ease writing byte order masks
- bugfix: RFC5424 parser confused by empty structured data
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=237
- bugfix: error return from strgen caused abort, now causes action to be
ignored (just like a failed filter)
- new sample plugin for a strgen to generate sql statement consumable
by a database plugin
- bugfix: strgen could not be used together with database outputs
because the sql/stdsql option could not be specified. This has been
solved by permitting the strgen to include the opton inside its name.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=195
---------------------------------------------------------------------------
Version 5.7.9 [V5-BETA] (rgerhards), 2011-03-16
- improved testbench
among others, life tests for ommysql (against a test database) have
been added, valgrind-based testing enhanced, ...
- enhance: fallback *at runtime* to epoll_create if epoll_create1 is not
available. Thanks to Michael Biebl for analysis and patch!
- bugfix: failover did not work correctly if repeated msg reduction was on
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=236
affected directive was: $ActionExecOnlyWhenPreviousIsSuspended on
- bugfix: minor memory leak in omlibdbi (< 1k per instance and run)
- bugfix: (regression) omhdfs did no longer compile
- bugfix: omlibdbi did not use password from rsyslog.conf
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=203
---------------------------------------------------------------------------
Version 5.7.8 [V5-BETA] (rgerhards), 2011-03-09
- systemd support somewhat improved (can now take over existing log sockt)
- bugfix: discard action did not work under some circumstances
fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=217
- bugfix: file descriptor leak in gnutls netstream driver
fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=222
---------------------------------------------------------------------------
Version 5.7.7 [V5-BETA] (rgerhards), 2011-03-02
- bugfix: potential abort condition when $RepeatedMsgReduction set to on
as well as potentially in a number of other places where MsgDup() was
used. This only happened when the imudp input module was used and it
depended on name resolution not yet had taken place. In other words,
this was a strange problem that could lead to hard to diagnose
instability. So if you experience instability, chances are good that
this fix will help.
---------------------------------------------------------------------------
Version 5.7.6 [V5-BETA] (rgerhards), 2011-02-25
- bugfix: fixed a memory leak and potential abort condition
this could happen if multiple rulesets were used and some output batches
contained messages belonging to more than one ruleset.
fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=226
fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=218
- bugfix: memory leak when $RepeatedMsgReduction on was used
bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=225
---------------------------------------------------------------------------
Version 5.7.5 [V5-BETA] (rgerhards), 2011-02-23
- enhance: imfile did not yet support multiple rulesets, now added
we do this directly in the beta because a) it does not affect existing
functionality and b) one may argue that this missing functionality is
close to a bug.
- improved testbench, added tests for imuxsock
- bugfix: imuxsock did no longer sanitize received messages
This was a regression from the imuxsock partial rewrite. Happened
because the message is no longer run through the standard parsers.
bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=224
- bugfix: minor race condition in action.c - considered cosmetic
This is considered cosmetic as multiple threads tried to write exactly
the same value into the same memory location without sync. The method
has been changed so this can no longer happen.
---------------------------------------------------------------------------
Version 5.7.4 [V5-BETA] (rgerhards), 2011-02-17
- added pmsnare parser module (written by David Lang)
- enhanced imfile to support non-cancel input termination
- improved systemd socket activation thanks to Marius Tomaschweski
- improved error reporting for $WorkDirectory
non-existance and other detectable problems are now reported,
and the work directory is NOT set in this case
- bugfix: pmsnare causded abort under some conditions
- bugfix: abort if imfile reads file line of more than 64KiB
Thanks to Peter Eisentraut for reporting and analysing this problem.
bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=221
- bugfix: queue engine did not properly slow down inputs in FULL_DELAY mode
when in disk-assisted mode. This especially affected imfile, which
created unnecessarily queue files if a large set of input file data was
to process.
- bugfix: very long running actions could prevent shutdown under some
circumstances. This has now been solved, at least for common
situations.
- bugfix: fixed compile problem due to empty structs
this occured only on some platforms/compilers. thanks to Dražen Kačar
for the fix
---------------------------------------------------------------------------
Version 5.7.3 [V5-BETA] (rgerhards), 2011-02-07
- added support for processing multi-line messages in imfile
- added $IMUDPSchedulingPolicy and $IMUDPSchedulingPriority config settings
- added $LocalHostName config directive
- bugfix: fixed build problems on some platforms
namely those that have 32bit atomic operations but not 64 bit ones
- bugfix: local hostname was pulled too-early, so that some config
directives (namely FQDN settings) did not have any effect
- bugfix: imfile did duplicate messages under some circumstances
- added $OMMySQLConfigFile config directive
- added $OMMySQLConfigSection config directive
---------------------------------------------------------------------------
Version 5.7.2 [V5-DEVEL] (rgerhards), 2010-11-26
- bugfix(important): problem in TLS handling could cause rsyslog to loop
in a tight loop, effectively disabling functionality and bearing the
risk of unresponsiveness of the whole system.
Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=194
- bugfix: imfile state file was not written when relative file name
for it was specified
- bugfix: compile failed on systems without epoll_create1()
Thanks to David Hill for providing a fix.
- bugfix: atomic increment for msg object may not work correct on all
platforms. Thanks to Chris Metcalf for the patch
- bugfix: replacements for atomic operations for non-int sized types had
problems. At least one instance of that problem could potentially lead
to abort (inside omfile).
---------------------------------------------------------------------------
Version 5.7.1 [V5-DEVEL] (rgerhards), 2010-10-05
- support for Hadoop's HDFS added (via omhdfs)
- imuxsock now optionally use SCM_CREDENTIALS to pull the pid from the log
socket itself
(thanks to Lennart Poettering for the suggesting this feature)
- imuxsock now optionally uses per-process input rate limiting, guarding the
user against processes spamming the system log
(thanks to Lennart Poettering for suggesting this feature)
- added new config statements
* $InputUnixListenSocketUsePIDFromSystem
* $SystemLogUsePIDFromSystem
* $SystemLogRateLimitInterval
* $SystemLogRateLimitBurst
* $SystemLogRateLimitSeverity
* $IMUxSockRateLimitInterval
* $IMUxSockRateLimitBurst
* $IMUxSockRateLimitSeverity
- imuxsock now supports up to 50 different sockets for input
- some code cleanup in imuxsock (consider this a release a major
modification, especially if problems show up)
- bugfix: /dev/log was unlinked even when passed in from systemd
in which case it should be preserved as systemd owns it
---------------------------------------------------------------------------
Version 5.7.0 [V5-DEVEL] (rgerhards), 2010-09-16
- added module impstat to emit periodic statistics on rsyslog counters
- support for systemd officially added
* acquire /dev/log socket optionally from systemd
thanks to Lennart Poettering for this patch
* sd-systemd API added as part of rsyslog runtime library
---------------------------------------------------------------------------
Version 5.6.5 [V5-STABLE] (rgerhards), 2011-03-22
- bugfix: failover did not work correctly if repeated msg reduction was on
affected directive was: $ActionExecOnlyWhenPreviousIsSuspended on
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=236
- bugfix: omlibdbi did not use password from rsyslog.con
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=203
- bugfix(kind of): tell users that config graph can currently not be
generated
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=232
- bugfix: discard action did not work under some circumstances
fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=217
(backport from 5.7.8)
---------------------------------------------------------------------------
Version 5.6.4 [V5-STABLE] (rgerhards), 2011-03-03
- bugfix: potential abort condition when $RepeatedMsgReduction set to on
as well as potentially in a number of other places where MsgDup() was
used. This only happened when the imudp input module was used and it
depended on name resolution not yet had taken place. In other words,
this was a strange problem that could lead to hard to diagnose
instability. So if you experience instability, chances are good that
this fix will help.
- bugfix: fixed a memory leak and potential abort condition
this could happen if multiple rulesets were used and some output batches
contained messages belonging to more than one ruleset.
fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=226
fixes: http://bugzilla.adiscon.com/show_bug.cgi?id=218
- bugfix: memory leak when $RepeatedMsgReduction on was used
bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=225
---------------------------------------------------------------------------
Version 5.6.3 [V5-STABLE] (rgerhards), 2011-01-26
- bugfix: action processor released memory too early, resulting in
potential issue in retry cases (but very unlikely due to another
bug, which I also fixed -- only after the fix this problem here
became actually visible).
- bugfix: batch processing flagged invalid message as "bad" under some
circumstances
- bugfix: unitialized variable could cause issues under extreme conditions
plus some minor nits. This was found after a clang static code analyzer
analysis (great tool, and special thanks to Marcin for telling me about
it!)
- bugfix: batches which had actions in error were not properly retried in
all cases
- bugfix: imfile did duplicate messages under some circumstances
- bugfix: testbench was not activated if no Java was present on system
... what actually was a left-over. Java is no longer required.
---------------------------------------------------------------------------
Version 5.6.2 [V5-STABLE] (rgerhards), 2010-11-30
- bugfix: compile failed on systems without epoll_create1()
Thanks to David Hill for providing a fix.
- bugfix: atomic increment for msg object may not work correct on all
platforms. Thanks to Chris Metcalf for the patch
- bugfix: replacements for atomic operations for non-int sized types had
problems. At least one instance of that problem could potentially lead
to abort (inside omfile).
- added the $InputFilePersistStateInterval config directive to imfile
- changed imfile so that the state file is never deleted (makes imfile
more robust in regard to fatal failures)
---------------------------------------------------------------------------
Version 5.6.1 [V5-STABLE] (rgerhards), 2010-11-24
- bugfix(important): problem in TLS handling could cause rsyslog to loop
in a tight loop, effectively disabling functionality and bearing the
risk of unresponsiveness of the whole system.
Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=194
- permitted imptcp to work on systems which support epoll(), but not
epoll_create().
Bug: http://bugzilla.adiscon.com/show_bug.cgi?id=204
Thanks to Nicholas Brink for reporting this problem.
- bugfix: testbench failed if imptcp was not enabled
- bugfix: segfault when an *empty* template was used
Bug: http://bugzilla.adiscon.com/show_bug.cgi?id=206
Thanks to David Hill for alerting us.
- bugfix: compile failed with --enable-unlimited-select
thanks varmojfekoj for the patch
---------------------------------------------------------------------------
Version 5.6.0 [V5-STABLE] (rgerhards), 2010-10-19
This release brings all changes and enhancements of the 5.5.x series
to the v5-stable branch.
- bugfix: a couple of problems that imfile had on some platforms, namely
Ubuntu (not their fault, but occured there)
- bugfix: imfile utilizes 32 bit to track offset. Most importantly,
this problem can not experienced on Fedora 64 bit OS (which has
64 bit long's!)
---------------------------------------------------------------------------
Version 5.5.7 [V5-BETA] (rgerhards), 2010-08-09
- changed omudpspoof default spoof address to simplify typical use case
thanks to David Lang for suggesting this
- doc bugfix: pmlastmsg doc samples had errors
- bugfix[minor]: pmrfc3164sd had invalid name (resided in rsyslog name
space, what should not be the case for a contributed module)
- added omuxsock, which permits to write message to local Unix sockets
this is the counterpart to imuxsock, enabling fast local forwarding
---------------------------------------------------------------------------
Version 5.5.6 [DEVEL] (rgerhards), 2010-07-21
- added parser modules
* pmlastmsg, which supports the notoriously malformed "last message
repeated n times" messages from some syslogd's (namely sysklogd)
* pmrfc3164sd (contributed), supports RFC5424 structured data in
RFC3164 messages [untested]
- added new module type "string generator", used to speed up output
processing. Expected speedup for (typical) rsyslog processing is
roughly 5 to 6 percent compared to using string-based templates.
They may also be used to do more complex formatting with custom
C code, what provided greater flexibility and probably far higher
speed, for example if using multiple regular expressions within a
template.
- added 4 string generators for
* RSYSLOG_FileFormat
* RSYSLOG_TraditionalFileFormat
* RSYSLOG_ForwardFormat
* RSYSLOG_TraditionalForwardFormat
- bugfix: mutexes used to simulate atomic instructions were not destructed
- bugfix: regression caused more locking action in msg.c than necessary
- bugfix: "$ActionExecOnlyWhenPreviousIsSuspended on" was broken
- bugfix: segfault on HUP when "HUPIsRestart" was set to "on"
thanks varmojfekoj for the patch
- bugfix: default for $OMFileFlushOnTXEnd was wrong ("off").
This, in default mode, caused buffered writing to be used, what
means that it looked like no output were written or partial
lines. Thanks to Michael Biebl for pointing out this bug.
- bugfix: programname filter in ! configuration can not be reset
Thanks to Kiss Gabor for the patch.
---------------------------------------------------------------------------
Version 5.5.5 [DEVEL] (rgerhards), 2010-05-20
- added new cancel-reduced action thread termination method
We now manage to cancel threads that block inside a retry loop to
terminate without the need to cancel the thread. Avoiding cancellation
helps keep the system complexity minimal and thus provides for better
stability. This also solves some issues with improper shutdown when
inside an action retry loop.
---------------------------------------------------------------------------
Version 5.5.4 [DEVEL] (rgerhards), 2010-05-03
- This version offers full support for Solaris on Intel and Sparc
- bugfix: problems with atomic operations emulation
replaced atomic operation emulation with new code. The previous code
seemed to have some issue and also limited concurrency severely. The
whole atomic operation emulation has been rewritten.
- bugfix: netstream ptcp support class was not correctly build on systems
without epoll() support
- bugfix: segfault on Solaris/Sparc
---------------------------------------------------------------------------
Version 5.5.3 [DEVEL] (rgerhards), 2010-04-09
- added basic but functional support for Solaris
- imported many bugfixes from 3.6.2/4.6.1 (see ChangeLog below!)
- added new property replacer option "date-rfc3164-buggyday" primarily
to ease migration from syslog-ng. See property replacer doc for
details.
- added capability to turn off standard LF delimiter in TCP server
via new directive "$InputTCPServerDisableLFDelimiter on"
- bugfix: failed to compile on systems without epoll support
- bugfix: comment char ('#') in literal terminated script parsing
and thus could not be used.
but tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=119
[merged in from v3.22.2]
- imported patches from 4.6.0:
* improved testbench to contain samples for totally malformed messages
which miss parts of the message content
* bugfix: some malformed messages could lead to a missing LF inside files
or some other missing parts of the template content.
* bugfix: if a message ended immediately with a hostname, the hostname
was mistakenly interpreted as TAG, and localhost be used as hostname
---------------------------------------------------------------------------
Version 5.5.2 [DEVEL] (rgerhards), 2010-02-05
- applied patches that make rsyslog compile under Apple OS X.
Thanks to trey for providing these.
- replaced data type "bool" by "sbool" because this created some
portability issues.
- added $Escape8BitCharactersOnReceive directive
Thanks to David Lang for suggesting it.
- worked around an issue where omfile failed to compile on 32 bit platforms
under some circumstances (this smells like a gcc problem, but a simple
solution was available). Thanks to Kenneth Marshall for some advice.
- extended testbench
---------------------------------------------------------------------------
Version 5.5.1 [DEVEL] (rgerhards), 2009-11-27
- introduced the ablity for netstream drivers to utilize an epoll interface
This offers increased performance and removes the select() FDSET size
limit from imtcp. Note that we fall back to select() if there is no
epoll netstream drivers. So far, an epoll driver has only been
implemented for plain tcp syslog, the rest will follow once the code
proves well in practice AND there is demand.
- re-implemented $EscapeControlCharacterTab config directive
Based on Jonathan Bond-Caron's patch for v4. This now also includes some
automatted tests.
- bugfix: enabling GSSServer crashes rsyslog startup
Thanks to Tomas Kubina for the patch [imgssapi]
- bugfix (kind of): check if TCP connection is still alive if using TLS
Thanks to Jonathan Bond-Caron for the patch.
---------------------------------------------------------------------------
Version 5.5.0 [DEVEL] (rgerhards), 2009-11-18
- moved DNS resolution code out of imudp and into the backend processing
Most importantly, DNS resolution now never happens if the resolved name
is not required. Note that this applies to imudp - for the other inputs,
DNS resolution almost comes for free, so we do not do it there. However,
the new method has been implemented in a generic way and as such may
also be used by other modules in the future.
- added option to use unlimited-size select() calls
Thanks to varmjofekoj for the patch
This is not done in imudp, as it natively supports epoll().
- doc: improved description of what loadable modules can do
---------------------------------------------------------------------------
Version 5.4.2 [v5-stable] (rgerhards), 2010-03-??
- bugfix(kind of): output plugin retry behaviour could cause engine to loop
The rsyslog engine did not guard itself against output modules that do
not properly convey back the tryResume() behaviour. This then leads to
what looks like an endless loop. I consider this to be a bug of the
engine not only because it should be hardened against plugin misbehaviour,
but also because plugins may not be totally able to avoid this situation
(depending on the type of and processing done by the plugin).
- bugfix: testbench failed when not executed in UTC+1 timezone
accidently, the time zone information was kept inside some
to-be-checked-for responses
- temporary bugfix replaced by permanent one for
message-induced off-by-one error (potential segfault) (see 4.6.2)
The analysis has been completed and a better fix been crafted and
integrated.
- bugfix(minor): status variable was uninitialized
However, this would have caused harm only if NO parser modules at
all were loaded, which would lead to a defunctional configuration
at all. And, even more important, this is impossible as two parser
modules are built-in and thus can not be "not loaded", so we always
have a minimum of two.
---------------------------------------------------------------------------
Version 5.4.1 [v5-stable] (rgerhards), 2010-03-??
- added new property replacer option "date-rfc3164-buggyday" primarily
to ease migration from syslog-ng. See property replacer doc for
details. [backport from 5.5.3 because urgently needed by some]
- imported all bugfixes vom 4.6.2 (see below)
---------------------------------------------------------------------------
Version 5.4.0 [v5-stable] (rgerhards), 2010-03-08
***************************************************************************
* This is a new stable v5 version. It contains all fixes and enhancements *
* made during the 5.3.x phase as well as those listed below. *
* Note that the 5.2.x series was quite buggy and as such all users are *
* strongly advised to upgrade to 5.4.0. *
***************************************************************************
- bugfix: omruleset failed to work in many cases
bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=179
Thanks to Ryan B. Lynch for reporting this issue.
- bugfix: comment char ('#') in literal terminated script parsing
and thus could not be used.
but tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=119
[merged in from v3.22.2]
---------------------------------------------------------------------------
Version 5.3.7 [BETA] (rgerhards), 2010-01-27
- bugfix: queues in direct mode could case a segfault, especially if an
action failed for action queues. The issue was an invalid increment of
a stack-based pointer which lead to destruction of the stack frame and
thus a segfault on function return.
Thanks to Michael Biebl for alerting us on this problem.
- bugfix: hostname accidently set to IP address for some message sources,
for example imudp. Thanks to Anton for reporting this bug. [imported v4]
- bugfix: ompgsql had problems with transaction support, what actually
rendered it unsuable. Thanks to forum user "horhe" for alerting me
on this bug and helping to debug/fix it! [imported from 5.3.6]
- bugfix: $CreateDirs variable not properly initialized, default thus
was random (but most often "on") [imported from v3]
- bugfix: potential segfaults during queue shutdown
(bugs require certain non-standard settings to appear)
Thanks to varmojfekoj for the patch [imported from 4.5.8]
[backport from 5.5.2]
- bugfix: wrong memory assignment for a config variable (probably
without causing any harm) [backport from 5.2.2]
- bugfix: rsyslog hangs when writing to a named pipe which nobody was
reading. Thanks to Michael Biebl for reporting this bug.
Bugzilla entry: http://bugzilla.adiscon.com/show_bug.cgi?id=169
[imported from 4.5.8]
---------------------------------------------------------------------------
Version 5.3.6 [BETA] (rgerhards), 2010-01-13
- bugfix: ompgsql did not properly check the server connection in
tryResume(), which could lead to rsyslog running in a thight loop
- bugfix: suspension during beginTransaction() was not properly handled
by rsyslog core
- bugfix: omfile output was only written when buffer was full, not at
end of transaction
- bugfix: commit transaction was not properly conveyed to message layer,
potentially resulting in non-message destruction and thus hangs
- bugfix: enabling GSSServer crashes rsyslog startup
Thanks to Tomas Kubina for the patch [imgssapi]
- bugfix (kind of): check if TCP connection is still alive if using TLS
Thanks to Jonathan Bond-Caron for the patch.
- bugfix: $CreateDirs variable not properly initialized, default thus
was random (but most often "on") [imported from v3]
- bugfix: ompgsql had problems with transaction support, what actually
rendered it unsuable. Thanks to forum user "horhe" for alerting me
on this bug and helping to debug/fix it!
- bugfix: memory leak when sending messages in zip-compressed format
Thanks to Naoya Nakazawa for analyzing this issue and providing a patch.
- worked around an issue where omfile failed to compile on 32 bit platforms
under some circumstances (this smells like a gcc problem, but a simple
solution was available). Thanks to Kenneth Marshall for some advice.
[backported from 5.5.x branch]
---------------------------------------------------------------------------
Version 5.3.5 [BETA] (rgerhards), 2009-11-13
- some light performance enhancement by replacing time() call with much
faster (at least under linux) gettimeofday() calls.
- some improvement of omfile performance with dynafiles
saved costly time() calls by employing a logical clock, which is
sufficient for the use case
- bugfix: omudpspoof miscalculated source and destination ports
while this was probably not noticed for source ports, it resulted in
almost all destination ports being wrong, except for the default port
of 514, which by virtue of its binary representation was calculated
correct (and probably thus the bug not earlier detected).
- bugfixes imported from earlier releases
* bugfix: named pipes did no longer work (they always got an open error)
this was a regression from the omfile rewrite in 4.5.0
* bugfix(testbench): sequence check was not always performed correctly,
that could result in tests reporting success when they actually failed
- improved testbench: added tests for UDP forwarding and omudpspoof
- doc bugfix: omudpspoof had wrong config command names ("om" missing)
- bugfix [imported from 4.4.3]: $ActionExecOnlyOnceEveryInterval did
not work.
- [inport v4] improved testbench, contains now tcp and gzip test cases
- [import v4] added a so-called "On Demand Debug" mode, in which debug
output can be generated only after the process has started, but not right
from the beginning. This is assumed to be useful for hard-to-find bugs.
Also improved the doc on the debug system.
- bugfix: segfault on startup when -q or -Q option was given
[imported from v3-stable]
---------------------------------------------------------------------------
Version 5.3.4 [DEVEL] (rgerhards), 2009-11-04
- added the ability to create custom message parsers
- added $RulesetParser config directive that permits to bind specific
parsers to specific rulesets
- added omruleset output module, which provides great flexibility in
action processing. THIS IS A VERY IMPORTANT ADDITION, see its doc
for why.
- added the capability to have ruleset-specific main message queues
This offers considerable additional flexibility AND superior performance
(in cases where multiple inputs now can avoid lock contention)
- bugfix: correct default for escape ('#') character restored
This was accidently changed to '\\', thanks to David Lang for reporting
- bugfix(testbench): testcase did not properly wait for rsyslogd shutdown
thus some unpredictable behavior and a false negative test result
could occur.
---------------------------------------------------------------------------
Version 5.3.3 [DEVEL] (rgerhards), 2009-10-27
- simplified and thus speeded up the queue engine, also fixed some
potential race conditions (in very unusual shutdown conditions)
along the way. The threading model has seriously changes, so there may
be some regressions.
- enhanced test environment (inlcuding testbench): support for enhancing
probability of memory addressing failure by using non-NULL default
value for malloced memory (optional, only if requested by configure
option). This helps to track down some otherwise undetected issues
within the testbench.
- bugfix: potential abort if inputname property was not set
primarily a problem of imdiag
- bugfix: message processing states were not set correctly in all cases
however, this had no negative effect, as the message processing state
was not evaluated when a batch was deleted, and that was the only case
where the state could be wrong.
---------------------------------------------------------------------------
Version 5.3.2 [DEVEL] (rgerhards), 2009-10-21
- enhanced omfile to support transactional interface. This will increase
performance in many cases.
- added multi-ruleset support to imudp
- re-enabled input thread termination handling that does avoid thread
cancellation where possible. This provides a more reliable mode of
rsyslogd termination (canceling threads my result in not properly
freed resouces and potential later hangs, even though we perform
proper cancel handling in our code). This is part of an effort to
reduce thread cancellation as much as possible in rsyslog.
NOTE: the code previously written code for this functionality had a
subtle race condition. The new code solves that.
- enhanced immark to support non-cancel input module termination
- improved imudp so that epoll can be used in more environments,
fixed potential compile time problem if EPOLL_CLOEXEC is not available.
- some cleanup/slight improvement:
* changed imuxsock to no longer use deprecated submitAndParseMsg() IF
* changed submitAndParseMsg() interface to be a wrapper around the new
way of message creation/submission. This enables older plugins to be
used together with the new interface. The removal also enables us to
drop a lot of duplicate code, reducing complexity and increasing
maintainability.
- bugfix: segfault when starting up with an invalid .qi file for a disk queue
Failed for both pure disk as well as DA queues. Now, we emit an error
message and disable disk queueing facility.
- bugfix: potential segfault on messages with empty MSG part. This was a
recently introduced regression.
- bugfix: debug string larger than 1K were improperly displayed. Max size
is now 32K, and if a string is even longer it is meaningfully truncated.
---------------------------------------------------------------------------
Version 5.3.1 [DEVEL] (rgerhards), 2009-10-05
- added $AbortOnUncleanConfig directive - permits to prevent startup when
there are problems with the configuration file. See it's doc for
details.
- included some important fixes from v4-stable:
* bugfix: invalid handling of zero-sized messages
* bugfix: zero-sized UDP messages are no longer processed
* bugfix: random data could be appended to message
* bugfix: reverse lookup reduction logic in imudp do DNS queries too often
- bugfixes imported from 4.5.4:
* bugfix: potential segfault in stream writer on destruction
* bugfix: potential race in object loader (obj.c) during use/release
* bugfixes: potential problems in out file zip writer
---------------------------------------------------------------------------
Version 5.3.0 [DEVEL] (rgerhards), 2009-09-14
- begun to add simple GUI programs to gain insight into running rsyslogd
instances and help setup and troubleshooting (active via the
--enable-gui ./configure switch)
- changed imudp to utilize epoll(), where available. This shall provide
slightly better performance (just slightly because we called select()
rather infrequently on a busy system)
---------------------------------------------------------------------------
Version 5.2.2 [v5-stable] (rgerhards), 2009-11-??
- bugfix: enabling GSSServer crashes rsyslog startup
Thanks to Tomas Kubina for the patch [imgssapi]
---------------------------------------------------------------------------
Version 5.2.1 [v5-stable] (rgerhards), 2009-11-02
- bugfix [imported from 4.4.3]: $ActionExecOnlyOnceEveryInterval did
not work.
- bugfix: segfault on startup when -q or -Q option was given
[imported from v3-stable]
---------------------------------------------------------------------------
Version 5.2.0 [v5-stable] (rgerhards), 2009-11-02
This is a re-release of version 5.1.6 as stable after we did not get any bug
reports during the whole beta phase. Still, this first v5-stable may not be
as stable as one hopes for, I am not sure if we did not get bug reports
just because nobody tried it. Anyhow, we need to go forward and so we
have the initial v5-stable.
---------------------------------------------------------------------------
Version 5.1.6 [v5-beta] (rgerhards), 2009-10-15
- feature imports from v4.5.6
- bugfix: potential race condition when queue worker threads were
terminated
- bugfix: solved potential (temporary) stall of messages when the queue was
almost empty and few new data added (caused testbench to sometimes hang!)
- fixed some race condition in testbench
- added more elaborate diagnostics to parts of the testbench
- bugfixes imported from 4.5.4:
* bugfix: potential segfault in stream writer on destruction
* bugfix: potential race in object loader (obj.c) during use/release
* bugfixes: potential problems in out file zip writer
- included some important fixes from 4.4.2:
* bugfix: invalid handling of zero-sized messages
* bugfix: zero-sized UDP messages are no longer processed
* bugfix: random data could be appended to message
* bugfix: reverse lookup reduction logic in imudp do DNS queries too often
---------------------------------------------------------------------------
Version 5.1.5 [v5-beta] (rgerhards), 2009-09-11
- added new config option $ActionWriteAllMarkMessages
this option permites to process mark messages under all circumstances,
even if an action was recently called. This can be useful to use mark
messages as a kind of heartbeat.
- added new config option $InputUnixListenSocketCreatePath
to permit the auto-creation of pathes to additional log sockets. This
turns out to be useful if they reside on temporary file systems and
rsyslogd starts up before the daemons that create these sockets
(rsyslogd always creates the socket itself if it does not exist).
- added $LogRSyslogStatusMessages configuration directive
permitting to turn off rsyslog start/stop/HUP messages. See Debian
ticket http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=463793
- bugfix: hostnames with dashes in them were incorrectly treated as
malformed, thus causing them to be treated as TAG (this was a regression
introduced from the "rfc3164 strict" change in 4.5.0). Testbench has been
updated to include a smaple message with a hostname containing a dash.
- bugfix: strings improperly reused, resulting in some message properties
be populated with strings from previous messages. This was caused by
an improper predicate check.
- added new config directive $omfileForceChown [import from 4.7.0]
---------------------------------------------------------------------------
Version 5.1.4 [DEVEL] (rgerhards), 2009-08-20
- legacy syslog parser changed so that it now accepts date stamps in
wrong case. Some devices seem to create them and I do not see any harm
in supporting that.
- added $InputTCPMaxListeners directive - permits to specify how many
TCP servers shall be possible (default is 20).
- bugfix: memory leak with some input modules. Those inputs that
use parseAndSubmitMsg() leak two small memory blocks with every message.
Typically, those process only relatively few messages, so the issue
does most probably not have any effect in practice.
- bugfix: if tcp listen port could not be created, no error message was
emitted
- bugfix: discard action did not work (did not discard messages)
- bugfix: discard action caused segfault
- bugfix: potential segfault in output file writer (omfile)
In async write mode, we use modular arithmetic to index the output
buffer array. However, the counter variables accidently were signed,
thus resulting in negative indizes after integer overflow. That in turn
could lead to segfaults, but was depending on the memory layout of
the instance in question (which in turn depended on a number of
variables, like compile settings but also configuration). The counters
are now unsigned (as they always should have been) and so the dangling
mis-indexing does no longer happen. This bug potentially affected all
installations, even if only some may actually have seen a segfault.
---------------------------------------------------------------------------
Version 5.1.3 [DEVEL] (rgerhards), 2009-07-28
- architecture change: queue now always has at least one worker thread
if not running in direct mode. Previous versions could run without
any active workers. This simplifies the code at a very small expense.
See v5 compatibility note document for more in-depth discussion.
- enhance: UDP spoofing supported via new output module omudpspoof
See the omudpspoof documentation for details and samples
- bugfix: message could be truncated after TAG, often when forwarding
This was a result of an internal processing error if maximum field
sizes had been specified in the property replacer.
- bugfix: minor static memory leak while reading configuration
did NOT leak based on message volume
- internal: added ability to terminate input modules not via pthread_cancel
but an alternate approach via pthread_kill. This is somewhat safer as we
do not need to think about the cancel-safeness of all libraries we use.
However, not all inputs can easily supported, so this now is a feature
that can be requested by the input module (the most important ones
request it).
---------------------------------------------------------------------------
Version 5.1.2 [DEVEL] (rgerhards), 2009-07-08
- bugfix: properties inputname, fromhost, fromhost-ip, msg were lost when
working with disk queues
- some performance enhancements
- bugfix: abort condition when RecvFrom was not set and message reduction
was on. Happend e.g. with imuxsock.
- added $klogConsoleLogLevel directive which permits to set a new
console log level while rsyslog is active
- some internal code cleanup
---------------------------------------------------------------------------
Version 5.1.1 [DEVEL] (rgerhards), 2009-07-03
- bugfix: huge memory leak in queue engine (made rsyslogd unusable in
production). Occured if at least one queue was in direct mode
(the default for action queues)
- imported many performance optimizations from v4-devel (4.5.0)
- bugfix: subtle (and usually irrelevant) issue in timout processing
timeout could be one second too early if nanoseconds wrapped
- set a more sensible timeout for shutdow, now 1.5 seconds to complete
processing (this also removes those cases where the shutdown message
was not written because the termination happened before it)
---------------------------------------------------------------------------
Version 5.1.0 [DEVEL] (rgerhards), 2009-05-29
*********************************** NOTE **********************************
The v5 versions of rsyslog feature a greatly redesigned queue engine. The
major theme for the v5 release is twofold:
a) greatly improved performance
b) enable audit-grade processing
Here, audit-grade processing means that rsyslog, if used together with
audit-grade transports and configured correctly, will never lose messages
that already have been acknowledged, not even in fatal failure cases like
sudden loss of power.
Note that large parts of rsyslog's important core components have been
restructured to support these design goals. As such, early versions of
the engine will probably be less stable than the v3/v4 engine.
Also note that the initial versions do not cover all and everything. As
usual, the code will evolve toward the final goal as version numbers
increase.
*********************************** NOTE **********************************
- redesigned queue engine so that it supports ultra-reliable operations
This resulted in a rewrite of large parts. The new capability can be
used to build audit-grade systems on the basis of rsyslog.
- added $MainMsgQueueDequeueBatchSize and $ActionQueueDequeueBatchSize
configuration directives
- implemented a new transactional output module interface which provides
superior performance (for databases potentially far superior performance)
- increased ompgsql performance by adapting to new transactional
output module interface
---------------------------------------------------------------------------
Version 4.7.3 [v4-devel] (rgerhards), 2010-11-25
- added omuxsock, which permits to write message to local Unix sockets
this is the counterpart to imuxsock, enabling fast local forwarding
- added imptcp, a simplified, Linux-specific and potentielly fast
syslog plain tcp input plugin (NOT supporting TLS!)
- bugfix: a couple of problems that imfile had on some platforms, namely
Ubuntu (not their fault, but occured there)
- bugfix: imfile utilizes 32 bit to track offset. Most importantly,
this problem can not experienced on Fedora 64 bit OS (which has
64 bit long's!)
- added the $InputFilePersistStateInterval config directive to imfile
- changed imfile so that the state file is never deleted (makes imfile
more robust in regard to fatal failures)
---------------------------------------------------------------------------
Version 4.7.2 [v4-devel] (rgerhards), 2010-05-03
- bugfix: problems with atomic operations emulaton
replaced atomic operation emulation with new code. The previous code
seemed to have some issue and also limited concurrency severely. The
whole atomic operation emulation has been rewritten.
- added new $Sleep directive to hold processing for a couple of seconds
during startup
- bugfix: programname filter in ! configuration can not be reset
Thanks to Kiss Gabor for the patch.
---------------------------------------------------------------------------
Version 4.7.1 [v4-devel] (rgerhards), 2010-04-22
- Solaris support much improved -- was not truely usable in 4.7.0
Solaris is no longer supported in imklog, but rather there is a new
plugin imsolaris, which is used to pull local log sources on a Solaris
machine.
- testbench improvement: Java is no longer needed for testing tool creation
---------------------------------------------------------------------------
Version 4.7.0 [v4-devel] (rgerhards), 2010-04-14
- new: support for Solaris added (but not yet the Solaris door API)
- added function getenv() to RainerScript
- added new config option $InputUnixListenSocketCreatePath
to permit the auto-creation of pathes to additional log sockets. This
turns out to be useful if they reside on temporary file systems and
rsyslogd starts up before the daemons that create these sockets
(rsyslogd always creates the socket itself if it does not exist).
- added $LogRSyslogStatusMessages configuration directive
permitting to turn off rsyslog start/stop/HUP messages. See Debian
ticket http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=463793
- added new config directive $omfileForceChown to (try to) fix some broken
system configs.
See ticket for details: http://bugzilla.adiscon.com/show_bug.cgi?id=150
- added $EscapeControlCharacterTab config directive
Thanks to Jonathan Bond-Caron for the patch.
- added option to use unlimited-size select() calls
Thanks to varmjofekoj for the patch
- debugondemand mode caused backgrounding to fail - close to a bug, but I'd
consider the ability to background in this mode a new feature...
- bugfix (kind of): check if TCP connection is still alive if using TLS
Thanks to Jonathan Bond-Caron for the patch.
- imported changes from 4.5.7 and below
- bugfix: potential segfault when -p command line option was used
Thanks for varmojfekoj for pointing me at this bug.
- imported changes from 4.5.6 and below
---------------------------------------------------------------------------
Version 4.6.6 [v4-stable] (rgerhards), 2010-11-??
- bugfix: IPv6-address could not be specified in omrelp
this was due to improper parsing of ":"
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=250
- bugfix: imfile potentially duplicates lines
This can happen when 0 bytes are read from the input file, and some
writer appends data to the file BEFORE we check if a rollover happens.
The check for rollover uses the inode and size as a criterion. So far,
we checked for equality of sizes, which is not given in this scenario,
but that does not indicate a rollover. From the source code comments:
Note that when we check the size, we MUST NOT check for equality.
The reason is that the file may have been written right after we
did try to read (so the file size has increased). That is NOT in
indicator of a rollover (this is an actual bug scenario we
experienced). So we need to check if the new size is smaller than
what we already have seen!
Also, under some circumstances an invalid truncation was detected. This
code has now been removed, a file change (and thus resent) is only
detected if the inode number changes.
- bugfix: a couple of problems that imfile had on some platforms, namely
Ubuntu (not their fault, but occured there)
- bugfix: imfile utilizes 32 bit to track offset. Most importantly,
this problem can not experienced on Fedora 64 bit OS (which has
64 bit long's!)
- bugfix: abort if imfile reads file line of more than 64KiB
Thanks to Peter Eisentraut for reporting and analysing this problem.
bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=221
- bugfix: omlibdbi did not use password from rsyslog.con
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=203
- some improvements thanks to clang's static code analyzer
o overall cleanup (mostly unnecessary writes and otherwise unused stuff)
o bugfix: fixed a very remote problem in msg.c which could occur when
running under extremely low memory conditions
---------------------------------------------------------------------------
Version 4.6.5 [v4-stable] (rgerhards), 2010-11-24
- bugfix(important): problem in TLS handling could cause rsyslog to loop
in a tight loop, effectively disabling functionality and bearing the
risk of unresponsiveness of the whole system.
Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=194
---------------------------------------------------------------------------
Version 4.6.4 [v4-stable] (rgerhards), 2010-08-05
- bugfix: zero-sized (empty) messages were processed by imtcp
they are now dropped as they always should have been
- bugfix: programname filter in ! configuration can not be reset
Thanks to Kiss Gabor for the patch.
---------------------------------------------------------------------------
Version 4.6.3 [v4-stable] (rgerhards), 2010-07-07
- improvded testbench
- added test with truly random data received via syslog to test
robustness
- added new configure option that permits to disable and enable an
extended testbench
- bugfix: segfault on HUP when "HUPIsRestart" was set to "on"
thanks varmojfekoj for the patch
- bugfix: default for $OMFileFlushOnTXEnd was wrong ("off").
This, in default mode, caused buffered writing to be used, what
means that it looked like no output were written or partial
lines. Thanks to Michael Biebl for pointing out this bug.
- bugfix: testbench failed when not executed in UTC+1 timezone
accidently, the time zone information was kept inside some
to-be-checked-for responses
- temporary bugfix replaced by permanent one for
message-induced off-by-one error (potential segfault) (see 4.6.2)
The analysis has been completed and a better fix been crafted and
integrated.
- bugfix: the T/P/E config size specifiers did not work properly under
all 32-bit platforms
- bugfix: local unix system log socket was deleted even when it was
not configured
- some doc fixes; incorrect config samples could cause confusion
thanks to Anthony Edwards for pointing the problems out
---------------------------------------------------------------------------
Version 4.6.2 [v4-stable] (rgerhards), 2010-03-26
- new feature: "." action type added to support writing files to relative
pathes (this is primarily meant as a debug aid)
- added replacements for atomic instructions on systems that do not
support them. [backport of Stefen Sledz' patch for v5)
- new feature: $OMFileAsyncWriting directive added
it permits to specifiy if asynchronous writing should be done or not
- bugfix(temporary): message-induced off-by-one error (potential segfault)
Some types of malformed messages could trigger an off-by-one error
(for example, \0 or \n as the last character, and generally control
character escaption is questionable). This is due to not strictly
following a the \0 or string counted string paradigm (during the last
optimization on the cstring class). As a temporary fix, we have
introduced a proper recalculation of the size. However, a final
patch is expected in the future. See bug tracker for further details
and when the final patch will be available:
http://bugzilla.adiscon.com/show_bug.cgi?id=184
Note that the current patch is considered sufficient to solve the
situation, but it requires a bit more runtime than desirable.
- bugfix: potential segfault in dynafile cache
This bug was triggered by an open failure. The the cache was full and
a new entry needed to be placed inside it, a victim for eviction was
selected. That victim was freed, then the open of the new file tried. If
the open failed, the victim entry was still freed, and the function
exited. However, on next invocation and cache search, the victim entry
was used as if it were populated, most probably resulting in a segfault.
- bugfix: race condition during directory creation
If multiple files try to create a directory at (almost) the same time,
some of them may fail. This is a data race and also exists with other
processes that may create the same directory. We do now check for this
condition and gracefully handle it.
- bugfix: potential re-use of free()ed file stream object in omfile
when dynaCache is enabled, the cache is full, a new entry needs to
be allocated, thus the LRU discarded, then a new entry is opend and that
fails. In that case, it looks like the discarded stream may be reused
improperly (based on code analysis, test case and confirmation pending)
- added new property replacer option "date-rfc3164-buggyday" primarily
to ease migration from syslog-ng. See property replacer doc for
details. [backport from 5.5.3 because urgently needed by some]
- improved testbench
- bugfix: invalid buffer write in (file) stream class
currently being accessed buffer could be overwritten with new data.
While this probably did not cause access violations, it could case loss
and/or duplication of some data (definitely a race with no deterministic
outcome)
- bugfix: potential hang condition during filestream close
predicate was not properly checked when waiting for the background file
writer
- bugfix: improper synchronization when "$OMFileFlushOnTXEnd on" was used
Internal data structures were not properly protected due to missing
mutex calls.
- bugfix: potential data loss during file stream shutdown
- bugfix: potential problems during file stream shutdown
The shutdown/close sequence was not clean, what potentially (but
unlikely) could lead to some issues. We have not been able to describe
any fatal cases, but there was some bug potential. Sequence has now
been straighted out.
- bugfix: potential problem (loop, abort) when file write error occured
When a write error occured in stream.c, variable iWritten had the error
code but this was handled as if it were the actual number of bytes
written. That was used in pointer arithmetic later on, and thus could
lead to all sorts of problems. However, this could only happen if the
error was EINTR or the file in question was a tty. All other cases were
handled properly. Now, iWritten is reset to zero in such cases, resulting
in proper retries.
- bugfix: $omfileFlushOnTXEnd was turned on when set to off and vice
versa due to an invalid check
- bugfix: recent patch to fix small memory leak could cause invalid free.
This could only happen during config file parsing.
- bugfix(minor): handling of extremely large strings in dbgprintf() fixed
Previously, it could lead to garbagge output and, in extreme cases, also
to segfaults. Note: this was a problem only when debug output was
actually enabled, so it caused no problem in production use.
- bugfix(minor): BSD_SO_COMPAT query function had some global vars not
properly initialized. However, in practice the loader initializes them
with zero, the desired value, so there were no actual issue in almost
all cases.
---------------------------------------------------------------------------
Version 4.6.1 [v4-stable] (rgerhards), 2010-03-04
- re-enabled old pipe output (using new module ompipe, built-in) after
some problems with pipes (and especially in regard to xconsole) were
discovered. Thanks to Michael Biebl for reporting the issues.
- bugfix: potential problems with large file support could cause segfault
... and other weird problems. This seemed to affect 32bit-platforms
only, but I can not totally outrule there were issues on other
platforms as well. The previous code could cause system data types
to be defined inconsistently, and that could lead to various
troubles. Special thanks go to the Mandriva team for identifying
an initial problem, help discussing it and ultimately a fix they
contributed.
- bugfix: fixed problem that caused compilation on FreeBSD 9.0 to fail.
bugtracker: http://bugzilla.adiscon.com/show_bug.cgi?id=181
Thanks to Christiano for reporting.
- bugfix: potential segfault in omfile when a dynafile open failed
In that case, a partial cache entry was written, and some internal
pointers (iCurrElt) not correctly updated. In the next iteration, that
could lead to a segfault, especially if iCurrElt then points to the
then-partial record. Not very likely, but could happen in practice.
- bugfix (theoretical): potential segfault in omfile under low memory
condition. This is only a theoretical bug, because it would only
happen when strdup() fails to allocate memory - which is highly
unlikely and will probably lead to all other sorts of errors.
- bugfix: comment char ('#') in literal terminated script parsing
and thus could not be used.
but tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=119
[merged in from v3.22.2]
---------------------------------------------------------------------------
Version 4.6.0 [v4-stable] (rgerhards), 2010-02-24
***************************************************************************
* This is a new stable v4 version. It contains all fixes and enhancements *
* made during the 4.5.x phase as well as those listed below. *
* Note: this version is scheduled to conclude the v4 development process. *
* Do not expect any more new developments in v4. The focus is now *
* on v5 (what also means we have a single devel branch again). *
* ("development" means new feature development, bug fixes are of *
* course provided for v4-stable) *
***************************************************************************
- improved testbench to contain samples for totally malformed messages
which miss parts of the message content
- bugfix: some malformed messages could lead to a missing LF inside files
or some other missing parts of the template content.
- bugfix: if a message ended immediately with a hostname, the hostname
was mistakenly interpreted as TAG, and localhost be used as hostname
- bugfix: message without MSG part could case a segfault
[backported from v5 commit 98d1ed504ec001728955a5bcd7916f64cd85f39f]
This actually was a "recent" regression, but I did not realize that it
was introduced by the performance optimization in v4-devel. Shame on
me for having two devel versions at the same time...
---------------------------------------------------------------------------
Version 4.5.8 [v4-beta] (rgerhards), 2010-02-10
- enhanced doc for using PostgreSQL
Thanks to Marc Schiffbauer for the new/updated doc
- bugfix: property replacer returned invalid parameters under some (unusual)
conditions. In extreme cases, this could lead to garbled logs and/or
a system failure.
- bugfix: invalid length returned (often) when using regular expressions
inside the property replacer
- bugfix: submatch regex in property replacer did not honor "return 0 on
no match" config case
- bugfix: imuxsock incorrectly stated inputname "imudp"
Thanks to Ryan Lynch for reporting this.
- (slightly) enhanced support for FreeBSD by setting _PATH_MODDIR to
the correct value on FreeBSD.
Thanks to Cristiano for the patch.
- bugfix: -d did not enable display of debug messages
regression from introduction of "debug on demand" mode
Thanks to Michael Biebl for reporting this bug
- bugfix: blanks inside file names did not terminate file name parsing.
This could reslult in the whole rest of a line (including comments)
to be treated as file name in "write to file" actions.
Thanks to Jack for reporting this issue.
- bugfix: rsyslog hang when writing to a named pipe which nobody was
reading. Thanks to Michael Biebl for reporting this bug.
Bugzilla entry: http://bugzilla.adiscon.com/show_bug.cgi?id=169
- bugfix: potential segfaults during queue shutdown
(bugs require certain non-standard settings to appear)
Thanks to varmojfekoj for the patch
---------------------------------------------------------------------------
Version 4.5.7 [v4-beta] (rgerhards), 2009-11-18
- added a so-called "On Demand Debug" mode, in which debug output can
be generated only after the process has started, but not right from
the beginning. This is assumed to be useful for hard-to-find bugs.
Also improved the doc on the debug system.
- bugfix (kind of): check if TCP connection is still alive if using TLS
Thanks to Jonathan Bond-Caron for the patch.
- bugfix: hostname accidently set to IP address for some message sources,
for example imudp. Thanks to Anton for reporting this bug.
- bugfix [imported from 4.4.3]: $ActionExecOnlyOnceEveryInterval did
not work.
---------------------------------------------------------------------------
Version 4.5.6 [v4-beta] (rgerhards), 2009-11-05
- bugfix: named pipes did no longer work (they always got an open error)
this was a regression from the omfile rewrite in 4.5.0
- bugfix(minor): diag function returned wrong queue memeber count
for the main queue if an active DA queue existed. This had no relevance
to real deployments (assuming they are not running the debug/diagnostic
module...), but sometimes caused grief and false alerts in the
testbench.
- included some important fixes from v4-stable:
* bugfix: invalid handling of zero-sized messages
* bugfix: zero-sized UDP messages are no longer processed
* bugfix: random data could be appended to message
* bugfix: reverse lookup reduction logic in imudp do DNS queries too often
- bugfix(testbench): testcase did not properly wait for rsyslod shutdown
thus some unpredictable behavior and a false negative test result
could occur. [BACKPORTED from v5]
- bugfix(testbench): sequence check was not always performed correctly,
that could result in tests reporting success when they actually failed
---------------------------------------------------------------------------
Version 4.5.5 [v4-beta] (rgerhards), 2009-10-21
- added $InputTCPServerNotifyOnConnectionClose config directive
see doc for details
- bugfix: debug string larger than 1K were improperly displayed. Max size
is now 32K
- bugfix: invalid storage class selected for some size config parameters.
This resulted in wrong values. The most prominent victim was the
directory creation mode, which was set to zero in some cases. For
details, see related blog post:
http://blog.gerhards.net/2009/10/another-note-on-hard-to-find-bugs.html
---------------------------------------------------------------------------
Version 4.5.4 [v4-beta] (rgerhards), 2009-09-29
- bugfix: potential segfault in stream writer on destruction
Most severely affected omfile. The problem was that some buffers were
freed before the asynchronous writer thread was shut down. So the
writer thread accessed invalid data, which may even already be
overwritten. Symptoms (with omfile) were segfaults, grabled data
and files with random names placed around the file system (most
prominently into the root directory). Special thanks to Aaron for
helping to track this down.
- bugfix: potential race in object loader (obj.c) during use/release
of object interface
- bugfixes: potential problems in out file zip writer. Problems could
lead to abort and/or memory leak. The module is now hardened in a very
conservative way, which is sub-optimal from a performance point of view.
This should be improved if it has proven reliable in practice.
---------------------------------------------------------------------------
Version 4.5.3 [v4-beta] (rgerhards), 2009-09-17
- bugfix: repeated messages were incorrectly processed
this could lead to loss of the repeated message content. As a side-
effect, it could probably also be possible that some segfault occurs
(quite unlikely). The root cause was that some counters introduced
during the malloc optimizations were not properly duplicated in
MsgDup(). Note that repeated message processing is not enabled
by default.
- bugfix: message sanitation had some issues:
- control character DEL was not properly escaped
- NUL and LF characters were not properly stripped if no control
character replacement was to be done
- NUL characters in the message body were silently dropped (this was
a regeression introduced by some of the recent optimizations)
- bugfix: strings improperly reused, resulting in some message properties
be populated with strings from previous messages. This was caused by
an improper predicate check. [backported from v5]
- fixed some minor portability issues
- bugfix: reverse lookup reduction logic in imudp do DNS queries too often
[imported from 4.4.2]
---------------------------------------------------------------------------
Version 4.5.2 [v4-beta] (rgerhards), 2009-08-21
- legacy syslog parser changed so that it now accepts date stamps in
wrong case. Some devices seem to create them and I do not see any harm
in supporting that.
- added $InputTCPMaxListeners directive - permits to specify how many
TCP servers shall be possible (default is 20).
- bugfix: memory leak with some input modules. Those inputs that
use parseAndSubmitMsg() leak two small memory blocks with every message.
Typically, those process only relatively few messages, so the issue
does most probably not have any effect in practice.
- bugfix: if tcp listen port could not be created, no error message was
emitted
- bugfix: potential segfault in output file writer (omfile)
In async write mode, we use modular arithmetic to index the output
buffer array. However, the counter variables accidently were signed,
thus resulting in negative indizes after integer overflow. That in turn
could lead to segfaults, but was depending on the memory layout of
the instance in question (which in turn depended on a number of
variables, like compile settings but also configuration). The counters
are now unsigned (as they always should have been) and so the dangling
mis-indexing does no longer happen. This bug potentially affected all
installations, even if only some may actually have seen a segfault.
- bugfix: hostnames with dashes in them were incorrectly treated as
malformed, thus causing them to be treated as TAG (this was a regression
introduced from the "rfc3164 strict" change in 4.5.0).
---------------------------------------------------------------------------
Version 4.5.1 [DEVEL] (rgerhards), 2009-07-15
- CONFIG CHANGE: $HUPisRestart default is now "off". We are doing this
to support removal of restart-type HUP in v5.
- bugfix: fromhost-ip was sometimes truncated
- bugfix: potential segfault when zip-compressed syslog records were
received (double free)
- bugfix: properties inputname, fromhost, fromhost-ip, msg were lost when
working with disk queues
- performance enhancement: much faster, up to twice as fast (depending
on configuration)
- bugfix: abort condition when RecvFrom was not set and message reduction
was on. Happend e.g. with imuxsock.
- added $klogConsoleLogLevel directive which permits to set a new
console log level while rsyslog is active
- bugfix: message could be truncated after TAG, often when forwarding
This was a result of an internal processing error if maximum field
sizes had been specified in the property replacer.
- added ability for the TCP output action to "rebind" its send socket after
sending n messages (actually, it re-opens the connection, the name is
used because this is a concept very similiar to $ActionUDPRebindInterval).
New config directive $ActionSendTCPRebindInterval added for the purpose.
By default, rebinding is disabled. This is considered useful for load
balancers.
- testbench improvements
---------------------------------------------------------------------------
Version 4.5.0 [DEVEL] (rgerhards), 2009-07-02
- activation order of inputs changed, they are now activated only after
privileges are dropped. Thanks to Michael Terry for the patch.
- greatly improved performance
- greatly reduced memory requirements of msg object
to around half of the previous demand. This means that more messages can
be stored in core! Due to fewer cache misses, this also means some
performance improvement.
- improved config error messages: now contain a copy of the config line
that (most likely) caused the error
- reduced max value for $DynaFileCacheSize to 1,000 (the former maximum
of 10,000 really made no sense, even 1,000 is very high, but we like
to keep the user in control ;)).
- added capability to fsync() queue disk files for enhanced reliability
(also add's speed, because you do no longer need to run the whole file
system in sync mode)
- more strict parsing of the hostname in rfc3164 mode, hopefully
removes false positives (but may cause some trouble with hostname
parsing). For details, see this bug tracker:
http://bugzilla.adiscon.com/show_bug.cgi?id=126
- omfile rewrite to natively support zip files (includes large extension
of the stream class)
- added configuration commands (see doc for explanations)
* $OMFileZipLevel
* $OMFileIOBufferSize
* $OMFileFlushOnTXEnd
* $MainMsgQueueSyncQueueFiles
* $ActionQueueSyncQueueFiles
- done some memory accesses explicitely atomic
- bugfix: subtle (and usually irrelevant) issue in timout processing
timeout could be one second too early if nanoseconds wrapped
- set a more sensible timeout for shutdow, now 1.5 seconds to complete
processing (this also removes those cases where the shutdown message
was not written because the termination happened before it)
- internal bugfix: object pointer was only reset to NULL when an object
was actually destructed. This most likely had no effect to existing code,
but it may also have caused trouble in remote cases. Similarly, the fix
may also cause trouble...
- bugfix: missing initialization during timestamp creation
This could lead to timestamps written in the wrong format, but not to
an abort
---------------------------------------------------------------------------
Version 4.4.3 [v4-stable] (rgerhards), 2009-10-??
- bugfix: several smaller bugs resolved after flexelint review
Thanks to varmojfekoj for the patch.
- bugfix: $ActionExecOnlyOnceEveryInterval did not work.
This was a regression from the time() optimizations done in v4.
Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=143
Thanks to Klaus Tachtler for reporting this bug.
- bugfix: potential segfault on queue shutdown
Thanks to varmojfekoj for the patch.
- bugfix: potential hang condition on queue shutdown
[imported from v3-stable]
- bugfix: segfault on startup when -q or -Q option was given
[imported from v3-stable]
---------------------------------------------------------------------------
Version 4.4.2 [v4-stable] (rgerhards), 2009-10-09
- bugfix: invalid handling of zero-sized messages, could lead to mis-
addressing and potential memory corruption/segfault
- bugfix: zero-sized UDP messages are no longer processed
until now, they were forwarded to processing, but this makes no sense
Also, it looks like the system seems to provide a zero return code
on a UDP recvfrom() from time to time for some internal reasons. These
"receives" are now silently ignored.
- bugfix: random data could be appended to message, possibly causing
segfaults
- bugfix: reverse lookup reduction logic in imudp do DNS queries too often
A comparison was done between the current and the former source address.
However, this was done on the full sockaddr_storage structure and not
on the host address only. This has now been changed for IPv4 and IPv6.
The end result of this bug could be a higher UDP message loss rate than
necessary (note that UDP message loss can not totally be avoided due
to the UDP spec)
---------------------------------------------------------------------------
Version 4.4.1 [v4-stable] (rgerhards), 2009-09-02
- features requiring Java are automatically disabled if Java is not
present (thanks to Michael Biebl for his help!)
- bugfix: invalid double-quoted PRI, among others in outgoing messages
This causes grief with all receivers.
Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=147
- bugfix: Java testing tools were required, even if testbench was disabled
This resulted in build errors if no Java was present on the build system,
even though none of the selected option actually required Java.
(I forgot to backport a similar fix to newer releases).
- bugfix (backport): omfwd segfault
Note that the orginal (higher version) patch states this happens only
when debugging mode is turned on. That statement is wrong: if debug
mode is turned off, the message is not being emitted, but the division
by zero in the actual parameters still happens.
---------------------------------------------------------------------------
Version 4.4.0 [v4-stable] (rgerhards), 2009-08-21
- bugfix: stderr/stdout were not closed to be able to emit error messages,
but this caused ssh sessions to hang. Now we close them after the
initial initialization. See forum thread:
http://kb.monitorware.com/controlling-terminal-issues-t9875.html
- bugfix: sending syslog messages with zip compression did not work
---------------------------------------------------------------------------
Version 4.3.2 [v4-beta] (rgerhards), 2009-06-24
- removed long-obsoleted property UxTradMsg
- added a generic network stream server (in addition to rather specific
syslog tcp server)
- added ability for the UDP output action to rebind its send socket after
sending n messages. New config directive $ActionSendUDPRebindInterval
added for the purpose. By default, rebinding is disabled. This is
considered useful for load balancers.
- bugfix: imdiag/imtcp had a race condition
- improved testbench (now much better code design and reuse)
- added config switch --enable-testbench=no to turn off testbench
---------------------------------------------------------------------------
Version 4.3.1 [DEVEL] (rgerhards), 2009-05-25
- added capability to run multiple tcp listeners (on different ports)
- performance enhancement: imtcp calls parser no longer on input thread
but rather inside on of the potentially many main msg queue worker
threads (an enhancement scheduled for all input plugins where this is
possible)
- added $GenerateConfigGraph configuration command which can be used
to generate nice-looking (and very informative) rsyslog configuration
graphs.
- added $ActionName configuration directive (currently only used for
graph generation, but may find other uses)
- improved doc
* added (hopefully) easier to grasp queue explanation
- improved testbench
* added tests for queue disk-only mode (checks disk queue logic)
- bugfix: light and full delay watermarks had invalid values, badly
affecting performance for delayable inputs
- build system improvements - thanks to Michael Biebl
- added new testing module imdiag, which enables to talk to the
rsyslog core at runtime. The current implementation is only a
beginning, but can be expanded over time
---------------------------------------------------------------------------
Version 4.3.0 [DEVEL] (rgerhards), 2009-04-17
- new feature: new output plugin omprog, which permits to start program
and feed it (via its stdin) with syslog messages. If the program
terminates, it is restarted.
- improved internal handling of RainerScript functions, building the
necessary plumbing to support more functions with decent runtime
performance. This is also necessary towards the long-term goal
of loadable library modules.
- added new RainerScript function "tolower"
- improved testbench
* added tests for tcp-based reception
* added tcp-load test (1000 connections, 20,000 messages)
- added $MaxOpenFiles configuration directive
- bugfix: solved potential memory leak in msg processing, could manifest
itself in imtcp
- bugfix: ompgsql did not detect problems in sql command execution
this could cause loss of messages. The handling was correct if the
connection broke, but not if there was a problem with statement
execution. The most probable case for such a case would be invalid
sql inside the template, and this is now much easier to diagnose.
---------------------------------------------------------------------------
Version 4.2.0 [v4-stable] (rgerhards), 2009-06-23
- bugfix: light and full delay watermarks had invalid values, badly
affecting performance for delayable inputs
- imported all patches from 3.22.1 as of today (see below)
- bugfix: compile problems in im3195
---------------------------------------------------------------------------
Version 4.1.7 [BETA] (rgerhards), 2009-04-22
- bugfix: $InputTCPMaxSessions config directive was accepted, but not
honored. This resulted in a fixed upper limit of 200 connections.
- bugfix: the default for $DirCreateMode was 0644, and as such wrong.
It has now been changed to 0700. For some background, please see
http://lists.adiscon.net/pipermail/rsyslog/2009-April/001986.html
- bugfix: ompgsql did not detect problems in sql command execution
this could cause loss of messages. The handling was correct if the
connection broke, but not if there was a problem with statement
execution. The most probable case for such a case would be invalid
sql inside the template, and this is now much easier to diagnose.
---------------------------------------------------------------------------
Version 4.1.6 [DEVEL] (rgerhards), 2009-04-07
- added new "csv" property replacer options to enable simple creation
of CSV-formatted outputs (format from RFC4180 is used)
- implemented function support in RainerScript. That means the engine
parses and compile functions, as well as executes a few build-in
ones. Dynamic loading and registration of functions is not yet
supported - but we now have a good foundation to do that later on.
- implemented the strlen() RainerScript function
- added a template output module
- added -T rsyslogd command line option, enables to specify a directory
where to chroot() into on startup. This is NOT a security feature but
introduced to support testing. Thus, -T does not make sure chroot()
is used in a secure way. (may be removed later)
- added omstdout module for testing purposes. Spits out all messages to
stdout - no config option, no other features
- added a parser testing suite (still needs to be extended, but a good
start)
- modified $ModLoad statement so that for modules whom's name starts with
a dot, no path is prepended (this enables relative-pathes and should
not break any valid current config)
- fixed a bug that caused action retries not to work correctly
situation was only cleared by a restart
- bugfix: closed dynafile was potentially never written until another
dynafile name was generated - potential loss of messages
- improved omfile so that it properly suspends itself if there is an
i/o or file name generation error. This enables it to be used with
the full high availability features of rsyslog's engine
- bugfix: fixed some segaults on Solaris, where vsprintf() does not
check for NULL pointers
- improved performance of regexp-based filters
Thanks to Arnaud Cornet for providing the idea and initial patch.
- added a new way how output plugins may be passed parameters. This is
more effcient for some outputs. They new can receive fields not only
as a single string but rather in an array where each string is seperated.
- added (some) developer documentation for output plugin interface
- bugfix: potential abort with DA queue after high watermark is reached
There exists a race condition that can lead to a segfault. Thanks
go to vbernetr, who performed the analysis and provided patch, which
I only tweaked a very little bit.
- bugfix: imtcp did incorrectly parse hostname/tag
Thanks to Luis Fernando Muñoz Mejías for the patch.
---------------------------------------------------------------------------
Version 4.1.5 [DEVEL] (rgerhards), 2009-03-11
- bugfix: parser did not correctly parse fields in UDP-received messages
- added ERE support in filter conditions
new comparison operation "ereregex"
- added new config directive $RepeatedMsgContainsOriginalMsg so that the
"last message repeated n times" messages, if generated, may
have an alternate format that contains the message that is being repeated
---------------------------------------------------------------------------
Version 4.1.4 [DEVEL] (rgerhards), 2009-01-29
- bugfix: inconsistent use of mutex/atomic operations could cause segfault
details are too many, for full analysis see blog post at:
http://blog.gerhards.net/2009/01/rsyslog-data-race-analysis.html
- bugfix: unitialized mutex was used in msg.c:getPRI
This was subtle, because getPRI is called as part of the debugging code
(always executed) in syslogd.c:logmsg.
- bufgix: $PreserveFQDN was not properly handled for locally emitted
messages
---------------------------------------------------------------------------
Version 4.1.3 [DEVEL] (rgerhards), 2008-12-17
- added $InputTCPServerAddtlFrameDelimiter config directive, which
enables to specify an additional, non-standard message delimiter
for processing plain tcp syslog. This is primarily a fix for the invalid
framing used in Juniper's NetScreen products. Credit to forum user
Arv for suggesting this solution.
- added $InputTCPServerInputName property, which enables a name to be
specified that will be available during message processing in the
inputname property. This is considered useful for logic that treats
messages differently depending on which input received them.
- added $PreserveFQDN config file directive
Enables to use FQDNs in sender names where the legacy default
would have stripped the domain part.
Thanks to BlinkMind, Inc. http://www.blinkmind.com for sponsoring this
development.
- bugfix: imudp went into an endless loop under some circumstances
(but could also leave it under some other circumstances...)
Thanks to David Lang and speedfox for reporting this issue.
---------------------------------------------------------------------------
Version 4.1.2 [DEVEL] (rgerhards), 2008-12-04
- bugfix: code did not compile without zlib
- security bugfix: $AllowedSender was not honored, all senders were
permitted instead (see http://www.rsyslog.com/Article322.phtml)
- security fix: imudp emitted a message when a non-permitted sender
tried to send a message to it. This behaviour is operator-configurable.
If enabled, a message was emitted each time. That way an attacker could
effectively fill the disk via this facility. The message is now
emitted only once in a minute (this currently is a hard-coded limit,
if someone comes up with a good reason to make it configurable, we
will probably do that).
- doc bugfix: typo in v3 compatibility document directive syntax
thanks to Andrej for reporting
- imported other changes from 3.21.8 and 3.20.1 (see there)
---------------------------------------------------------------------------
Version 4.1.1 [DEVEL] (rgerhards), 2008-11-26
- added $PrivDropToGroup, $PrivDropToUser, $PrivDropToGroupID,
$PrivDropToUserID config directives to enable dropping privileges.
This is an effort to provide a security enhancement. For the limits of this
approach, see http://wiki.rsyslog.com/index.php/Security
- re-enabled imklog to compile on FreeBSD (brought in from beta)
---------------------------------------------------------------------------
Version 4.1.0 [DEVEL] (rgerhards), 2008-11-18
********************************* WARNING *********************************
This version has a slightly different on-disk format for message entries.
As a consequence, old queue files being read by this version may have
an invalid output timestamp, which could result to some malfunction inside
the output driver. It is recommended to drain queues with the previous
version before switching to this one.
********************************* WARNING *********************************
- greatly enhanced performance when compared to v3.
- added configuration directive "HUPisRestart" which enables to configure
HUP to be either a full restart or "just" a leightweight way to
close open files.
- enhanced legacy syslog parser to detect year if part of the timestamp
the format is based on what Cisco devices seem to emit.
- added a setting "$OptimizeForUniprocessor" to enable users to turn off
pthread_yield calls which are counter-productive on multiprocessor
machines (but have been shown to be useful on uniprocessors)
- reordered imudp processing. Message parsing is now done as part of main
message queue worker processing (was part of the input thread)
This should also improve performance, as potentially more work is
done in parallel.
- bugfix: compressed syslog messages could be slightly mis-uncompressed
if the last byte of the compressed record was a NUL
- added $UDPServerTimeRequery option which enables to work with
less acurate timestamps in favor of performance. This enables querying
of the time only every n-th time if imudp is running in the tight
receive loop (aka receiving messsages at a high rate)
- doc bugfix: queue doc had wrong parameter name for setting controlling
worker thread shutdown period
- restructured rsyslog.conf documentation
- bugfix: memory leak in ompgsql
Thanks to Ken for providing the patch
---------------------------------------------------------------------------
Version 3.22.4 [v3-stable] (rgerhards), 2010-??-??
- improved some code based on clang static analyzer results
---------------------------------------------------------------------------
Version 3.22.3 [v3-stable] (rgerhards), 2010-11-24
- bugfix(important): problem in TLS handling could cause rsyslog to loop
in a tight loop, effectively disabling functionality and bearing the
risk of unresponsiveness of the whole system.
Bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=194
---------------------------------------------------------------------------
Version 3.22.2 [v3-stable] (rgerhards), 2010-08-05
- bugfix: comment char ('#') in literal terminated script parsing
and thus could not be used.
but tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=119
- enhance: imrelp now also provides remote peer's IP address
[if librelp != 1.0.0 is used]
- bugfix: sending syslog messages with zip compression did not work
- bugfix: potential hang condition on queue shutdown
- bugfix: segfault on startup when -q or -Q option was given
bug tracker: http://bugzilla.adiscon.com/show_bug.cgi?id=157
Thanks to Jonas Nogueira for reporting this bug.
- clarified use of $ActionsSendStreamDriver[AuthMode/PermittedPeers]
in doc set (require TLS drivers)
- bugfix: $CreateDirs variable not properly initialized, default thus
was random (but most often "on")
- bugfix: potential segfault when -p command line option was used
thanks to varmojfekoj for pointing me at this bug
- bugfix: programname filter in ! configuration can not be reset
Thanks to Kiss Gabor for the patch.
---------------------------------------------------------------------------
Version 3.22.1 [v3-stable] (rgerhards), 2009-07-02
- bugfix: invalid error message issued if $inlcudeConfig was on an empty
set of files (e.g. *.conf, where none such files existed)
thanks to Michael Biebl for reporting this bug
- bugfix: when run in foreground (but not in debug mode), a
debug message ("DoDie called") was emitted at shutdown. Removed.
thanks to Michael Biebl for reporting this bug
- bugfix: some garbagge was emitted to stderr on shutdown. This
garbage consisted of file names, which were written during
startup (key point: not a pointer error)
thanks to Michael Biebl for reporting this bug
- bugfix: startup and shutdown message were emitted to stdout
thanks to Michael Biebl for reporting this bug
- bugfix: error messages were not emitted to stderr in forked mode
(stderr and stdo are now kept open across forks)
- bugfix: internal messages were emitted to whatever file had fd2 when
rsyslogd ran in forked mode (as usual!)
Thanks to varmojfekoj for the patch
- small enhancement: config validation run now exits with code 1 if an
error is detected. This change is considered important but small enough
to apply it directly to the stable version. [But it is a border case,
the change requires more code than I had hoped. Thus I have NOT tried
to actually catch all cases, this is left for the current devel
releases, if necessary]
- bugfix: light and full delay watermarks had invalid values, badly
affecting performance for delayable inputs
- bugfix: potential segfault issue when multiple $UDPServerRun directives
are specified. Thanks to Michael Biebl for helping to debug this one.
- relaxed GnuTLS version requirement to 1.4.0 after confirmation from the
field that this version is sufficient
- bugfix: parser did not properly handle empty structured data
- bugfix: invalid mutex release in msg.c (detected under thread debugger,
seems not to have any impact on actual deployments)
---------------------------------------------------------------------------
Version 3.22.0 [v3-stable] (rgerhards), 2009-04-21
This is the first stable release that includes the full functionality
of the 3.21.x version tree.
- bugfix: $InputTCPMaxSessions config directive was accepted, but not
honored. This resulted in a fixed upper limit of 200 connections.
- bugfix: the default for $DirCreateMode was 0644, and as such wrong.
It has now been changed to 0700. For some background, please see
http://lists.adiscon.net/pipermail/rsyslog/2009-April/001986.html
- bugfix: ompgsql did not detect problems in sql command execution
this could cause loss of messages. The handling was correct if the
connection broke, but not if there was a problem with statement
execution. The most probable case for such a case would be invalid
sql inside the template, and this is now much easier to diagnose.
---------------------------------------------------------------------------
Version 3.21.11 [BETA] (rgerhards), 2009-04-03
- build system improvements contributed by Michael Biebl - thx!
- all patches from 3.20.5 incorporated (see it's ChangeLog entry)
---------------------------------------------------------------------------
Version 3.21.10 [BETA] (rgerhards), 2009-02-02
- bugfix: inconsistent use of mutex/atomic operations could cause segfault
details are too many, for full analysis see blog post at:
http://blog.gerhards.net/2009/01/rsyslog-data-race-analysis.html
- the string "Do Die" was accidently emited upon exit in non-debug mode
This has now been corrected. Thanks to varmojfekoj for the patch.
- some legacy options were not correctly processed.
Thanks to varmojfekoj for the patch.
- doc bugfix: v3-compatiblity document had typo in config directive
thanks to Andrej for reporting this
---------------------------------------------------------------------------
Version 3.21.9 [BETA] (rgerhards), 2008-12-04
- re-release of 3.21.8 with an additional fix, that could also lead
to DoS; 3.21.8 has been removed from the official download archives
- security fix: imudp emitted a message when a non-permitted sender
tried to send a message to it. This behaviour is operator-configurable.
If enabled, a message was emitted each time. That way an attacker could
effectively fill the disk via this facility. The message is now
emitted only once in a minute (this currently is a hard-coded limit,
if someone comes up with a good reason to make it configurable, we
will probably do that).
---------------------------------------------------------------------------
Version 3.21.8 [BETA] (rgerhards), 2008-12-04
- bugfix: imklog did not compile on FreeBSD
- security bugfix: $AllowedSender was not honored, all senders were
permitted instead (see http://www.rsyslog.com/Article322.phtml)
- merged in all other changes from 3.20.1 (see there)
---------------------------------------------------------------------------
Version 3.21.7 [BETA] (rgerhards), 2008-11-11
- this is the new beta branch, based on the former 3.21.6 devel
- new functionality: ZERO property replacer nomatch option (from v3-stable)
---------------------------------------------------------------------------
Version 3.21.6 [DEVEL] (rgerhards), 2008-10-22
- consolidated time calls during msg object creation, improves performance
and consistency
- bugfix: solved a segfault condition
- bugfix: subsecond time properties generated by imfile, imklog and
internal messages could be slightly inconsistent
- bugfix: (potentially big) memory leak on HUP if queues could not be
drained before timeout - thanks to David Lang for pointing this out
- added capability to support multiple module search pathes. Thank
to Marius Tomaschewski for providing the patch.
- bugfix: im3195 did no longer compile
- improved "make distcheck" by ensuring everything relevant is recompiled
---------------------------------------------------------------------------
Version 3.21.5 [DEVEL] (rgerhards), 2008-09-30
- performance optimization: unnecessary time() calls during message
parsing removed - thanks to David Lang for his excellent performance
analysis
- added new capability to property replacer: multiple immediately
successive field delimiters are treated as a single one.
Thanks to Zhuang Yuyao for the patch.
- added message property "inputname", which contains the name of the
input (module) that generated it. Presence is depending on suport in
each input module (else it is blank).
- added system property "$myhostname", which contains the name of the
local host as it knows itself.
- imported a number of fixes and enhancements from the stable and
devel branches, including a fix to a potential segfault on HUP
when using UDP listners
- re-enabled gcc builtin atomic operations and added a proper
./configure check
- bugfix: potential race condition when adding messages to queue
There was a wrong order of mutex lock operations. It is hard to
believe that really caused problems, but in theory it could and with
threading we often see that theory becomes practice if something is only
used long enough on a fast enough machine with enough CPUs ;)
- cleaned up internal debug system code and made it behave better
in regard to multi-threading
---------------------------------------------------------------------------
Version 3.21.4 [DEVEL] (rgerhards), 2008-09-04
- removed compile time fixed message size limit (was 2K), limit can now
be set via $MaxMessageSize global config directive (finally gotten rid
of MAXLINE ;))
- enhanced doc for $ActionExecOnlyEveryNthTimeTimeout
- integrated a number of patches from 3.18.4, namely
- bugfix: order-of magnitude issue with base-10 size definitions
in config file parser. Could lead to invalid sizes, constraints
etc for e.g. queue files and any other object whose size was specified
in base-10 entities. Did not apply to binary entities. Thanks to
RB for finding this bug and providing a patch.
- bugfix: action was not called when system time was set backwards
(until the previous time was reached again). There are still some
side-effects when time is rolled back (A time rollback is really a bad
thing to do, ideally the OS should issue pseudo time (like NetWare did)
when the user tries to roll back time). Thanks to varmojfekoj for this
patch.
- doc bugfix: rsyslog.conf man page improved and minor nit fixed
thanks to Lukas Kuklinek for the patch.
---------------------------------------------------------------------------
Version 3.21.3 [DEVEL] (rgerhards), 2008-08-13
- added ability to specify flow control mode for imuxsock
- added ability to execute actions only after the n-th call of the action
This also lead to the addition of two new config directives:
$ActionExecOnlyEveryNthTime and $ActionExecOnlyEveryNthTimeTimeout
This feature is useful, for example, for alerting: it permits you to
send an alert only after at least n occurences of a specific message
have been seen by rsyslogd. This protectes against false positives
due to waiting for additional confirmation.
- bugfix: IPv6 addresses could not be specified in forwarding actions
New syntax @[addr]:port introduced to enable that. Root problem was IPv6
addresses contain colons.
- somewhat enhanced debugging messages
- imported from 3.18.3:
- enhanced ommysql to support custom port to connect to server
Port can be set via new $ActionOmmysqlServerPort config directive
Note: this was a very minor change and thus deemed appropriate to be
done in the stable release.
- bugfix: misspelled config directive, previously was
$MainMsgQueueWorkeTimeoutrThreadShutdown, is now
$MainMsgQueueWorkerTimeoutThreadShutdown. Note that the misspelled
directive is not preserved - if the misspelled directive was used
(which I consider highly unlikely), the config file must be changed.
Thanks to lperr for reporting the bug.
---------------------------------------------------------------------------
Version 3.21.2 [DEVEL] (rgerhards), 2008-08-04
- added $InputUnixListenSocketHostName config directive, which permits to
override the hostname being used on a local unix socket. This is useful
for differentiating "hosts" running in several jails. Feature was
suggested by David Darville, thanks for the suggestion.
- enhanced ommail to support multiple email recipients. This is done by
specifying $ActionMailTo multiple times. Note that this introduces a
small incompatibility to previous config file syntax: the recipient
list is now reset for each action (we honestly believe that will
not cause any problem - apologies if it does).
- enhanced troubleshooting documentation
---------------------------------------------------------------------------
Version 3.21.1 [DEVEL] (rgerhards), 2008-07-30
- bugfix: no error was reported if the target of a $IncludeConfig
could not be accessed.
- added testbed for common config errors
- added doc for -u option to rsyslogd man page
- enhanced config file checking - no active actions are detected
- added -N rsyslogd command line option for a config validation run
(which does not execute actual syslogd code and does not interfere
with a running instance)
- somewhat improved emergency configuration. It is now also selected
if the config contains no active actions
- rsyslogd error messages are now reported to stderr by default. can be
turned off by the new "$ErrorMessagesToStderr off" directive
Thanks to HKS for suggesting the new features.
---------------------------------------------------------------------------
Version 3.21.0 [DEVEL] (rgerhards), 2008-07-18
- starts a new devel branch
- added a generic test driver for RainerScript plus some test cases
to the testbench
- added a small diagnostic tool to obtain result of gethostname() API
- imported all changes from 3.18.1 until today (some quite important,
see below)
---------------------------------------------------------------------------
Version 3.20.6 [v3-stable] (rgerhards), 2009-04-16
- this is the last v3-stable for the 3.20.x series
- bugfix: $InputTCPMaxSessions config directive was accepted, but not
honored. This resulted in a fixed upper limit of 200 connections.
- bugfix: the default for $DirCreateMode was 0644, and as such wrong.
It has now been changed to 0700. For some background, please see
http://lists.adiscon.net/pipermail/rsyslog/2009-April/001986.html
---------------------------------------------------------------------------
Version 3.20.5 [v3-stable] (rgerhards), 2009-04-02
- bugfix: potential abort with DA queue after high watermark is reached
There exists a race condition that can lead to a segfault. Thanks
go to vbernetr, who performed the analysis and provided patch, which
I only tweaked a very little bit.
- fixed bugs in RainerScript:
o when converting a number and a string to a common type, both were
actually converted to the other variable's type.
o the value of rsCStrConvertToNumber() was miscalculated.
Thanks to varmojfekoj for the patch
- fixed a bug in configure.ac which resulted in problems with
environment detection - thanks to Michael Biebl for the patch
- fixed a potential segfault problem in gssapi code
thanks to varmojfekoj for the patch
- doc enhance: provide standard template for MySQL module and instructions
on how to modify schema
---------------------------------------------------------------------------
Version 3.20.4 [v3-stable] (rgerhards), 2009-02-09
- bugfix: inconsistent use of mutex/atomic operations could cause segfault
details are too many, for full analysis see blog post at:
http://blog.gerhards.net/2009/01/rsyslog-data-race-analysis.html
- bugfix: invalid ./configure settings for RFC3195
thanks to Michael Biebl for the patch
- bugfix: invalid mutex access in msg.c
- doc bugfix: dist tarball missed 2 files, had one extra file that no
longer belongs into it. Thanks to Michael Biebl for pointing this out.
---------------------------------------------------------------------------
Version 3.20.3 [v3-stable] (rgerhards), 2009-01-19
- doc bugfix: v3-compatiblity document had typo in config directive
thanks to Andrej for reporting this
- fixed a potential segfault condition with $AllowedSender directive
On HUP, the root pointers were not properly cleaned up. Thanks to
Michael Biebel, olgoat, and Juha Koho for reporting and analyzing
the bug.
---------------------------------------------------------------------------
Version 3.20.2 [v3-stable] (rgerhards), 2008-12-04
- re-release of 3.20.1 with an additional fix, that could also lead
to DoS; 3.20.1 has been removed from the official download archives
- security fix: imudp emitted a message when a non-permitted sender
tried to send a message to it. This behaviour is operator-configurable.
If enabled, a message was emitted each time. That way an attacker could
effectively fill the disk via this facility. The message is now
emitted only once in a minute (this currently is a hard-coded limit,
if someone comes up with a good reason to make it configurable, we
will probably do that).
---------------------------------------------------------------------------
Version 3.20.1 [v3-stable] (rgerhards), 2008-12-04
- security bugfix: $AllowedSender was not honored, all senders were
permitted instead
- enhance: regex nomatch option "ZERO" has been added
This allows to return the string 0 if a regular expression is
not found. This is probably useful for storing numerical values into
database columns.
- bugfix: memory leak in gtls netstream driver fixed
memory was lost each time a TLS session was torn down. This could
result in a considerable memory leak if it happened quite frequently
(potential system crash condition)
- doc update: documented how to specify multiple property replacer
options + link to new online regex generator tool added
- minor bufgfix: very small memory leak in gtls netstream driver
around a handful of bytes (< 20) for each HUP
- improved debug output for regular expressions inside property replacer
RE's seem to be a big trouble spot and I would like to have more
information inside the debug log. So I decided to add some additional
debug strings permanently.
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Version 3.20.0 [v3-stable] (rgerhards), 2008-11-05
- this is the inital release of the 3.19.x branch as a stable release
- bugfix: double-free in pctp netstream driver. Thank to varmojfeko
for the patch
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Version 3.19.12 [BETA] (rgerhards), 2008-10-16
- bugfix: subseconds where not correctly extracted from a timestamp
if that timestamp did not contain any subsecond information (the
resulting string was garbagge but should have been "0", what it
now is).
- increased maximum size of a configuration statement to 4K (was 1K)
- imported all fixes from the stable branch (quite a lot)
- bugfix: (potentially big) memory leak on HUP if queues could not be
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