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ChangeLog
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---------------------------------------------------------------------------
Version 8.3.1 [v8-devel] 2014-04-24
- external message modification interface now support modifying message PRI
- "jsonmesg" property will include uuid only if one was previously generated
This is primarily a performance optimization. Whenever the message uuid
is gotten, it is generated when not already present. As we used the
regular setter, this means that always the uuid was generated, which is
quite time-consuming. This has now been changed so that it only is
generated if it already exists. That also matches more closly the
semantics, as "jsonmesg" should not make modifications to the message.
Note that the same applies to "fulljson" passing mode for external
plugins.
- added plugin to rewrite message facility and/or severity
Name: fac-sever-rewrite.py
- permits to build against json-c 0.12
Unfortunately, json-c had an ABI breakage, so this is necessary. Note
that versions prior to 0.12 had security issues (CVE-2013-6370,
CVE-2013-6371) and so it is desirable to link against the new version.
Thanks to Thomas D. for the patch. Note that at least some distros
have fixed the security issue in older versions of json-c, so this
seems to apply mostly when building from sources.
- bugfix: using UUID property could cause segfault
- bugfix/mmexternal: memory leak
- bugfix: memory leak when using "jsonmesg" property
- bugfix: mmutf8fix did not detect two invalid sequences
Thanks to Axel Rau for the patch.
- bugfix: build problems with lexer.l on some platforms
For some reason, the strdup() prototype and others are missing. I admit
that I don't know why, as this happens only in 8.3.0+ and there is no
indication of changes to the affected files. In any case, we need to
fix this, and the current solution works at least as an interim one.
---------------------------------------------------------------------------
Version 8.3.0 [v8-devel] 2014-04-10
- new plugin for anonymizing credit card numbers
Thanks to Peter Slavov for providing the code.
- external message modification modules are now supported
They are bound via the new native module "mmexternal". Also, a sample
skeleton for an external python message modification module has been
added.
- new $jsonmesg property with JSON representation of whole message object
closes: https://github.com/rsyslog/rsyslog/issues/19
- improved error message for invalid field extraction in string template
see also:
http://kb.monitorware.com/problem-with-field-based-extraction-t12299.html
- fix build problems on Solaris
- NOTE: a json-c API that we begun to use requires the compiler to be in
c99 mode. By default, we select it automatically. If you modify this and
use gcc, be sure to include "-std=c99" in your compiler flags. This seems
to be necessary only for older versions of gcc.
---------------------------------------------------------------------------
Version 8.2.1 [v8-stable] 2014-04-17
- permits to build against json-c 0.12
Unfortunately, json-c had an ABI breakage, so this is necessary. Note
that versions prior to 0.12 had security issues (CVE-2013-6370,
CVE-2013-6371) and so it is desirable to link against the new version.
Thanks to Thomas D. for the patch. Note that at least some distros
have fixed the security issue in older versions of json-c, so this
seems to apply mostly when building from sources.
- doc is no longer shipped as part of the rsyslog tarball
Instead, the rsyslog-doc project creates its own tarball. This is the
result of a mailing list discussion after the 8.2.0 release with a
tarball-in-tarball approach, which was disliked by almost all distro
maintainers. This move also has the advantage of de-coupling the
release cycles of both projects a bit (which turned out to be a bit
problematic in practice).
- bugfix: mmutf8fix did not detect two invalid sequences
Thanks to Axel Rau for the patch.
---------------------------------------------------------------------------
Version 8.2.0 [v8-stable] 2014-04-02
This starts a new stable branch based on 8.1.6 plus the following changes:
- we now use doc from the rsyslog-doc project
As such, the ./doc subtree has been removed. Instead, a cache of the
rsyslog-doc project's files has been included in ./rsyslog-doc.tar.gz.
Note that the exact distribution mode for the doc is still under
discussion and may change in future releases.
This was agreed upon on the rsyslog mailing list. For doc issues
and corrections, be sure to work with the rsyslog-doc project. It is
currently hosted at https://github.com/rsyslog/rsyslog-doc
- add support for specifying the liblogging-stdlog channel spec
new global parameter "stdlog.channelspec"
- add "defaultnetstreamdrivercertfile" global variable to set a default
for the certfile.
Thanks to Radu Gheorghe for the patch.
- omelasticsearch: add new "usehttps" parameter for secured connections
Thanks to Radu Gheorghe for the patch.
- "action resumed" message now also specifies module type
which makes troubleshooting a bit easier. Note that we cannot output all
the config details (like destination etc) as this would require much more
elaborate code changes, which we at least do not like to do in the
stable version.
- add capability to override GnuTLS path in build process
Thanks to Clayton Shotwell for the patch
- better and more consistent action naming, action queues now always
contain the word "queue" after the action name
- bugfix: ompipe did resume itself even when it was still in error
See: https://github.com/rsyslog/rsyslog/issues/35
Thanks to github user schplat for reporting
- bugfix: ompipe used invalid default template
This is a regression from an old change (didn't track it down precisely,
but over a year ago). It used the Forwarding template instead of
the file template (so we have a full syslog header). This fix corrects
it back to previous behaviour, but new scripts that used the wrong
format may now need to have the RSYSLOG_ForwardingFormat template
explicitely be applied.
closes: https://github.com/rsyslog/rsyslog/issues/50
---------------------------------------------------------------------------
Version 8.1.6 [release candidate] 2014-02-20
- omfile: permit to set global defaults for action parameters
Thanks to Nathan Brown for the patch.
See also: https://github.com/rsyslog/rsyslog/pull/23
- add capability to escape control characters in the C way of doing it
adds new global parameter "parser.escapeControlCharactersCStyle"
Thanks to Nathan Brown for the patch.
See also: https://github.com/rsyslog/rsyslog/pull/13
- parser global parameters can now be set using RainerScript global()
Thanks to Nathan Brown for the patch.
See also: https://github.com/rsyslog/rsyslog/pull/23
- omprog: guard program-to-be-executed against CTL-C
This can frequently happen in debug mode, where rsyslog is terminated
by ctl-c. In any case, SIGINT is not meant to control the child process,
so it should be blocked.
- omprog bugfix: parameter "forceSingleInstance" is NOT mandatory
- add new jsonr property replacer option
Thanks to Nathan Brown for the patch.
- added external plugin interface
- ommongodb: add authentication support (untested)
Thanks to JT for the patch.
See also: https://github.com/rsyslog/rsyslog/pull/17
- bugfix: json templates are improperly created
Strings miss the terminating NUL character, which obviously can lead
to all sorts of problems.
See also: https://github.com/rsyslog/rsyslog/issues/27
Thanks to Alain for the analysis and the patch.
- ompgsql bugfix: improper handling of auto-backgrounding mode
If rsyslog was set to auto-background itself (default code behaviour, but
many distros now turn it off for good reason), ompgsql could not
properly connect. This could even lead to a segfault. The core reason
was that a PG session handle was kept open over a fork, something that
is explicitely forbidden in the PG API.
Thanks to Alain for the analysis and the patch.
- bugfix: ommongodb's template parameter was mandatory but should have
been optional
Thanks to Alain for the analysis and the patch.
- bugfix: end of batch processing was not 100% correct. Could lead to
outputs not properly wirting messages. At least omelasticsearch did not
write anything to the database due to this bug.
See: https://github.com/rsyslog/rsyslog/issues/10
Thanks to Radu Gheorghe for reporting the issue.
---------------------------------------------------------------------------
Version 8.1.5 [devel] 2014-01-24
- omprog: ability to execute multiple program instances per action
It can now execute one program instance per worker thread. This is
generally a very good thing the have performance wise. Usually, this
should cause no problems with the invoked program. For that reason,
we have decided to make this the default mode of operation. If not
desired, it can be turned off via the 'forceSingleInstance="on"'
action parameter.
CHANGE OF BEHAVIOUR: previous versions did always execute only one
instance per action, no matter how many workers were active. If
your program has special needs, you need to change your configuration.
- imfile now supports inotify (but must be explicitely turned on)
- imfile no longer has a limit on number of monitored files
- added ProcessInternalMessages global system parameter
This permits to inject rsyslog status messages into *another* main
syslogd or the journal.
- new dependency: liblogging-stdlog (for submitting to external logger)
- bugfix: imuxsock input parameters were not accepted
due to copy&paste error. Thanks to Andy Goldstein for the fix.
---------------------------------------------------------------------------
Version 8.1.4 [devel] 2014-01-10
- add exec_template() RainerScript function
- imrelp: support for TCP KEEPALIVE added
- bumped librelp dependency to 1.2.2 to support new KEEPALIVE feature
- Add directives for numerically specifying GIDs/UIDs
The already present directives (FileOwner, FileGroup, DirOwner,
DirGroup) translate names to numerical IDs, which depends on the user
information being available during rsyslog's startup. This can fail if
the information is obtained over a network or from a service such as
SSSD. The new directives provide a way to specify the numerical IDs
directly and bypass the lookup.
Thanks to Tomas Heinrich for the patch.
- bugfix: action commitTransaction() processing did not properly handle
suspended actions
- bugfix: omelasticsearch fail.es stats counter was improperly maitained
---------------------------------------------------------------------------
Version 8.1.3 [devel] 2013-12-06
THIS VERSION CAN BE CONSIDERED A "NORMAL" DEVEL RELEASE. It's no longer
highly experimental. This assertion is based on real-world feedback.
- changes to the strgen module interface
- new output module interface for transactional modules
- performance improvements
* reduced number of malloc/frees due to further changes to the
output module interface
* reduced number of malloc/frees during string template processing
We now re-use once allocated string template memory for as long
as the worker thread exists. This saves us from doing new memory
allocs (and their free counterpart) when the next message is
processed. The drawback is that the cache always is the size of
the so-far largest message processed. This is not considered a
problem, as in any case a single messages' memory footprint should
be far lower than that of a whole set of messages (especially on
busy servers).
* used variable qualifiers (const, __restrict__) to hopefully help
the compiler generate somewhat faster code
- failed action detection more precisely for a number of actions
If an action uses string parameter passing but is non-transactional
it can be executed immediately, giving a quicker indicatio of
action failure.
- bugfix: limiting queue disk space did not work properly
* queue.maxdiskspace actually initializes queue.maxfilesize
* total size of queue files was not checked against
queue.maxdiskspace for disk assisted queues.
Thanks to Karol Jurak for the patch.
---------------------------------------------------------------------------
Version 8.1.2 [experimental] 2013-11-28
- support for liblognorm1 added - results in performance improvements
Thanks to Pavel Levshin for his work in this regard.
- support for jemalloc added via --enable-jemalloc
Thanks to Pavel Levshin for suggesting jemalloc
Note that build system is experimental at this stage.
- queue defaults have changed
* high water mark is now dynamically 90% of queue size
* low water makr is now dynamically 70% of queue size
* queue.discardMark is now dynamically 98% of queue size
* queue.workerThreadMinimumMessage set to queue.size / num workers
For queues with very low queue.maxSize (< 100), "emergency" defaults
will be used.
- bugfix: disk queues created files in wrong working directory
if the $WorkDirectory was changed multiple times, all queues only
used the last value set.
- bugfix: legacy directive $ActionQueueWorkerThreads was not honored
- bugfix: mmrfc5424addhmac: "key" parameter was not properly processed
---------------------------------------------------------------------------
Version 8.1.1 [experimental] 2013-11-19
- bugfix: STOP/discard(~) was mostly NOT honored
This lead to execution of config code that was not meant to be executed.
- bugfix: memory leak on worker thread termination
- bugfix: potential segfault in omfile under heavy load
Thanks to Pavel Levshin for alerting us.
- bugfix: mmsequence: instance mode did not work
Thanks to Pavel Levshin for the patch
- bugfix: segfault on startup when certain script constructs are used
e.g. "if not $msg ..."
- omhiredis: now supports v8 output module interface and works again
Thanks to Pavel Levshin for the patch
- mmaudit: now supports v8 output module interface and work again
- bugfix: potential abort on startup in debug mode
This depends on template type being used. The root cause was a
non-necessary debug output, which were at the wrong spot (leftover from
initial testing).
Thanks to Pavel Levshin for alerting us and providing a patch
proposal.
---------------------------------------------------------------------------
Version 8.1.0 [experimental] 2013-11-15
- rewritten core engine for higher performance and new features
In detail:
* completely rewritten rule execution engine
* completely changed output module interface
* remodelled output module interface
* enabled important output modules to support full concurrent
operation
The core engine has been considerably changed and must be considered
experimental at this stage. Note that it does not yet include all
features planned for v8, but is close to this goal. In theory, the
engine should perform much better, especially on complex configurations
and busy servers. Most importantly, actions instances can now be called
concurrently from worker threads and many important output modules
support multiple concurrent action instances natively.
- module omruleset is no longer enabled by default.
Note that it has been deprecated in v7 and been replaced by the "call"
statement. Also, it can still be build without problems, the option must
just explicitely be given.
---------------------------------------------------------------------------
Version 7.6.4 [v7.6-stable] 2014-03-??
- permits to build against json-c 0.12
Unfortunately, json-c had an ABI breakage, so this is necessary. Note
that versions prior to 0.12 had security issues (CVE-2013-6370,
CVE-2013-6371) and so it is desirable to link against the new version.
Thanks to Thomas D. for the patch. Note that at least some distros
have fixed the security issue in older versions of json-c, so this
seems to apply mostly when building from sources.
- new omfile default module parameters
* filecreatemode
* fileowner
* fileownernum
* filegroup
* filegroupnum
* dirowner
* dirownernum
* dirgroup
* dirgroupnum
Thanks to Karol Jurak for the patch.
- bugfix: using UUID property could cause segfault
- bugfix: mmutf8fix did not detect two invalid sequences
Thanks to Axel Rau for the patch.
---------------------------------------------------------------------------
Version 7.6.3 [v7.6-stable] 2014-03-27
- add capability to override GnuTLS path in build process
Thanks to Clayton Shotwell for the patch
- support for librelp 1.2.5
Support new return states of librelp 1.2.5 to emit better error messages
For obvious reasons, librelp 1.2.5 is now required.
- bugfix: ompipe used invalid default template
This is a regression from an old change (didn't track it down precisely,
but over a year ago). It used the Forwarding template instead of
the file template (so we have a full syslog header). This fix corrects
it back to previous behaviour, but new scripts that used the wrong
format may now need to have the RSYSLOG_ForwardingFormat template
explicitely be applied.
closes: https://github.com/rsyslog/rsyslog/issues/50
- bugfix: ompipe did emit many suspension messages for /dev/xconsole
(hopefully now) closes: https://github.com/rsyslog/rsyslog/issues/35
When it was present, but nobody reading from it. The problem
is the way the rsyslog v7 engine tries to resolve failures in outputs.
It does some retries, and along those lines some state information gets
lost and it is close to impossible to retain it. However, the actual
root problem is that ompipe does not reliably detect if it is able to
recover. The problem here is that it actually does not know this
before it does an actual write. These two things together mess up the
logic that suppresses invalid resumption/suspension messages
(actually, the plugin switches state really that often).
Nevertheless, the prime problem with /dev/xconsole (and probably
most other pipes as well) is that it gets full. So I have now added
code that checks, during resume processing, if the pipe is writable.
If it is not, resume is deferred. That should address the case.
---------------------------------------------------------------------------
Version 7.6.2 [v7.6-stable] 2014-03-17
- support for librelp 1.2.4
This was necessary due to the problems with librelp 1.2.3 API stability.
We now use the new native 1.2.4 APIs to learn about the state of
librelp's TLS support.
For obvious reasons, librelp 1.2.4 is now required.
---------------------------------------------------------------------------
Version 7.6.1 [v7.6-stable] 2014-03-13
- added "action.reportSuspension" action parameter
This now permits to control handling on a per-action basis rather to
the previous "global setting only".
- "action resumed" message now also specifies module type
which makes troubleshooting a bit easier. Note that we cannot output all
the config details (like destination etc) as this would require much more
elaborate code changes, which we at least do not like to do in the
stable version.
- better and more consistent action naming, action queues now always
contain the word "queue" after the action name
- add support for "tls-less" librelp
we now require librelp 1.2.3, as we need the new error code definition
See also: https://github.com/rsyslog/librelp/issues/1
- build system improvements
* autoconf subdir option
* support for newer json-c packages
Thanks to Michael Biebl for the patches.
- imjournal enhancements:
* log entries with empty message field are no longer ignored
* invalid facility and severity values are replaced by defaults
* new config parameters to set default facility and severity
Thanks to Tomas Heinrich for implementing this
- bugfix: ompipe did resume itself even when it was still in error
See: https://github.com/rsyslog/rsyslog/issues/35
Thanks to github user schplat for reporting
- bugfix: "action xxx suspended" did report incorrect error code
- bugfix: ommongodb's template parameter was mandatory but should have
been optional
Thanks to Alain for the analysis and the patch.
- bugfix: only partial doc was put into distribution tarball
Thanks to Michael Biebl for alerting us.
see also: https://github.com/rsyslog/rsyslog/issues/31
- bugfix: async ruleset did process already-deleted messages
Thanks to John Novotny for the patch.
---------------------------------------------------------------------------
Version 7.6.0 [v7.6-stable] 2014-02-12
This starts a new stable branch based on 7.5.8 plus the following changes:
- bugfix: imuxsock input parameters were not accepted
due to copy&paste error. Thanks to Andy Goldstein for the fix.
- added ProcessInternalMessages global system parameter
This permits to inject rsyslog status messages into *another* main
syslogd or the journal.
- new dependency: liblogging-stdlog (for submitting to external logger)
- bugfix: json templates are improperly created
Strings miss the terminating NUL character, which obviously can lead
to all sorts of problems.
See also: https://github.com/rsyslog/rsyslog/issues/27
Thanks to Alain for the analysis and the patch.
- ompgsql bugfix: improper handling of auto-backgrounding mode
If rsyslog was set to auto-background itself (default code behaviour, but
many distros now turn it off for good reason), ompgsql could not
properly connect. This could even lead to a segfault. The core reason
was that a PG session handle was kept open over a fork, something that
is explicitely forbidden in the PG API.
Thanks to Alain for the analysis and the patch.
---------------------------------------------------------------------------
Version 7.5.8 [v7-release candidate] 2014-01-09
- add exec_template() RainerScript function
- add debug.onShutdown and debug.logFile global paramters
These enebale the new "debug on shutdown" mode, which can be used to
track hard to find problems that occur during system shutdown.
- Add directives for numerically specifying GIDs/UIDs
The already present directives (FileOwner, FileGroup, DirOwner,
DirGroup) translate names to numerical IDs, which depends on the user
information being available during rsyslog's startup. This can fail if
the information is obtained over a network or from a service such as
SSSD. The new directives provide a way to specify the numerical IDs
directly and bypass the lookup.
Thanks to Tomas Heinrich for the patch.
- actions now report if they suspend and resume themselves
this is by default on and controllable by the action.reportSuspension
global parameter
- bugfix: omelasticsearch fail.es stats counter was improperly maintained
- bugfix: mmrfc5424addhmac: "key" parameter was not properly processed
- add new impstats action counters:
* suspended
* suspended.duration
* resumed
---------------------------------------------------------------------------
Version 7.5.7 [v7-devel] 2013-11-25
- queue defaults have changed
* high water mark is now dynamically 90% of queue size
* low water makr is now dynamically 70% of queue size
* queue.discardMark is now dynamically 98% of queue size
* queue.workerThreadMinimumMessage set to queue.size / num workers
For queues with very low queue.maxSize (< 100), "emergency" defaults
will be used.
- worker thread pool handling has been improved
Among others, permits pool to actually shrink (was quite hard with
previous implementation. This will also improve performance and/or
lower system overhead on busy systems.
Thanks to Pavel Levshin for the enhancement.
- bugfix: mmpstrucdata generated inaccessible properties
- bugfix: RainerScript optimizer did not optimize PRI filters
things like "if $syslogfacility-text == "local3"" were not converted
to PRIFILT. This was a regression introduced in 7.5.6.
- bugfix: legacy directive $ActionQueueWorkerThreads was not honored
- bugfix: segfault on startup when certain script constructs are used
e.g. "if not $msg ..."
- bugfix: ommysql lost configfile/section parameters after first close
This means that when a connection was broken, it was probably
re-instantiated with different parameters than configured.
- bugfix: regression in template processing with subtrees in templates
Thanks to Pavel Levshin for the fix
- bugfix: regular worker threads are not properly (re)started if DA
mode is active.
This occurs only under rare conditions, but definitely is a bug that
needed to be addressed. It probably is present since version 4.
Note that this patch has not been applied to v7.4-stable, as it
is very unlikely to happen and the fix itself has some regression
potential (the fix looks very solid, but it addresses a core component).
Thanks to Pavel Levshin for the fix
- now emit warning message if om with msg passing mode uses action queue
These can modify the message, and this causes races.
- bugfix: $SystemLogUseSysTimeStamp/$SystemLogUsePIDFromSystem did not work
Thanks to Tomas Heinrich for the patch.
---------------------------------------------------------------------------
Version 7.5.6 [devel] 2013-10-29
- impstats: add capability to bind to a ruleset
- improved performance of RainerScript variable access
by refactoring the whole body of variable handling code. This also
solves some of the anomalies experienced in some versions of rsyslog.
All variable types are now handled in unified code, including
access via templates.
- RainerScript: make use of 64 bit for numbers where available
Thanks to Pavel Levshin for enhancement.
- slight performance optimization if GCC is used
We give branch prediction hints for the frequent RETiRet macro which is
used for error handling. Some slight performance gain is to be expected
from that.
- removed global variable support
The original idea was not well thought out and global variables, as
implemented, worked far different from what anybody would expect. As
such, we consider the current approach as an experiment that did not
work out and opt to removing it, clearing the way for a better future
solution. Note: global vars were introduced in 7.5.3 on Sept, 11th 2013.
- new module mmsequence, primarily used for action load balancing
Thanks to Pavel Levshin for contributing this module.
- bugfix: unset statement always worked on message var, even if local
var was given
- imudp: support for binding to ruleset added
- bugfix: segfault if variable was assigned to non-container subtree
Thanks to Pavel Levshin for the fix
- bugfix: imuxsock did not suport addtl sockets if syssock was disabled
Thanks to Pavel Levshin for the fix
- bugfix: running imupd on multiple threads lead to segfault if recvmmsg
is available
- bugfix: imudp when using recvmmsg could report wrong sender IP
- bugfix: segfault if re_extract() function was used and no match found
- bugfix: omelasticsearch did not compile on platforms without atomic
instructions
- bugfix: potential misadressing on startup if property-filter was used
This could happen if the property name was longer than 127 chars, a case
that would not happen in practice.
- bugfix: invalid property filter was not properly disabled in ruleset
Note: the cosmetic memory leak introduced with that patch in 7.4.5 is
now also fixed.
- imported bugfixes from 7.4.6 stable release
---------------------------------------------------------------------------
Version 7.5.5 [devel] 2013-10-16
- imfile: permit to monitor an unlimited number of files
- imptcp: add "defaultTZ" input parameter
- imudp: support for multiple receiver threads added
- imudp: add "dfltTZ" input config parameter
- bugfix: memory leak in mmnormalize
- bugfix: mmutf8fix did not properly handle invalid UTF-8 at END of message
if the very last character sequence was too long, this was not detected
Thanks to Risto Vaarandi for reporting this problem.
- mmanon: removed the check for specific "terminator characters" after
last octet. As it turned out, this didn't work in practice as there
was an enormous set of potential terminator chars -- so removing
them was the best thing to do. Note that this may change behaviour of
existing installations. Yet, we still consider this an important
bugfix, that should be applied to the stable branch.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=477
Thanks to Muri Cicanor for initiating the discussion
- now requires libestr 0.1.7 as early versions had a nasty bug in
string comparisons
- bugfix: mmanon did not detect all IP addresses in rewrite mode
The problem occured if two IPs were close to each other and the first one
was shrunk.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=485
Thanks to micah-at-riseup.net for reporting this bug
- bugfix: mmanon sometimes used invalid replacement char in simple mode
depending on configuration sequence, the replacement character was set
to 's' instead of the correct value. Most importantly, it was set to
's' if simple mode was selected and no replacement char set.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=484
Thanks to micah-at-riseup.net for reporting this bug
- bugfix: memory leak in mmnormalize
- bugfix: array-based ==/!= comparisions lead to invalid results
This was a regression introduced in 7.3.5 bei the PRI optimizer
---------------------------------------------------------------------------
Version 7.5.4 [devel] 2013-10-07
- mmpstrucdata: new module to parse RFC5424 structured data into json
message properties
- change main/ruleset queue defaults to be more enterprise-like
new defaults are queue.size 100,000 max workers 2, worker
activation after 40,000 msgs are queued, batch size 256. These settings
are much more useful for enterprises and will not hurt low-end systems
that much. This is part of our re-focus on enterprise needs.
- omfwd: new action parameter "maxErrorMessages" added
- omfile: new module parameters to set action defaults added
* dirCreateMode
* fileCreateMode
- mmutf8fix: new module to fix invalid UTF-8 sequences
- imuxsock: handle unlimited number of additional listen sockets
- doc: improve usability by linking to relevant web ressources
The idea is to enable users to quickly find additional information,
samples, HOWTOs and the like on the main site.
At the same time, (very) slightly remove memory footprint when
few listeners are monitored.
- bugfix: omfwd parameter streamdrivermmode was not properly handled
it was always overwritten by whatever value was set via the
legacy directive $ActionSendStreamDriverMode
- imtcp: add streamdriver.name module parameter
permits overriding the system default stream driver (gtls, ptcp)
- bugfix: build system: libgcrypt.h needed even if libgrcypt was disabled
Thanks to Jonny Törnbom for reporting this problem
- imported bugfixes from 7.4.4
---------------------------------------------------------------------------
Version 7.5.3 [devel] 2013-09-11
- imfile: support for escaping LF characters added
embedded LF in syslog messages cause a lot of trouble. imfile now has
the capability to escape them to "#012" (just like the regular control
character escape option). This requires new-style input statements to be
used. If legacy configuration statements are used, LF escaping is always
turned off to preserve compatibility.
NOTE: if input() statements were already used, there is a CHANGE OF
BEHAVIOUR: starting with this version, escaping is enabled by
default. So if you do not want it, you need to add
escapeLF="off"
to the input statement. Given the trouble LFs cause and the fact
that the majority of installations still use legacy config, we
considered this behaviour change acceptable and useful.
see also: http://blog.gerhards.net/2013/09/imfile-multi-line-messages.html
- add support for global and local variables
- bugfix: queue file size was not correctly processed
this could lead to using one queue file per message for sizes >2GiB
Thanks to Tomas Heinrich for the patch.
- add main_queue() configuration object to configure main message queue
- bugfix: stream compression in imptcp caused timestamp to be corrupted
- imudp: add ability to specify SO_RCVBUF size (rcvbufSize parameter)
- imudp: use inputname for statistics, if configured
- impstats: add process resource usage counters [via getrusage()]
- impstats: add paramter "resetCounters" to report delta values
possible for most, but not all, counters. See doc for details.
- librelp 1.2.0 is now required
- make use of new librelp generic error reporting facility
This leads to more error messages being passed to the user and
thus simplified troubleshooting.
- bugfix: very small memory leak in imrelp
more or less cosmetic, a single memory block was not freed, but this
only happens immediately before termination (when the OS automatically
frees all memory). Still an annoyance e.g. in valgrind.
- fix compile problem in debug build
- imported fixes from 7.4.4
---------------------------------------------------------------------------
Version 7.5.2 [devel] 2013-07-04
- librelp 1.1.4 is now required
We use API extensions for better error reporting and higher performance.
- omrelp: use transactional mode to make imrelp emit bulk sends
- omrelp: add "windowSize" parameter to set custom RELP window size
- bugfix: double-free in omelasticsearch
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=461
a security advisory for this bug is available at:
http://www.lsexperts.de/advisories/lse-2013-07-03.txt
CVE: CVE-2013-4758
PLEASE NOTE: This issue only existed if omelasticsearch was used
in a non-default configuration, where the "errorfile" parameter
was specified. Without that parameter set, the bug could not
be triggered.
Thanks to Markus Vervier and Marius Ionescu for providing a detailled
bug report. Special thanks to Markus for coordinating his security
advisory with us.
- doc: fixed various typos
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=391
Thanks to Georgi Georgiev for the patch.
---------------------------------------------------------------------------
Version 7.5.1 [devel] 2013-06-26
- librelp 1.1.3 is required - older versions can lead to a segfault
- add mmfields, which among others supports easy parsing of CEF messages
- omrelp:
* new parameter "compression.prioritystring" to control encryption
parameters used by GnuTLS
- imrelp:
* new parameter "compression.dhbits" to control the number of
bits being used for Diffie-Hellman key generation
* new parameter "compression.prioritystring" to control encryption
parameters used by GnuTLS
* support for impstats added
* support for setting permitted peers (client authentication) added
* bugfix: potential segfault at startup on invalid config parameters
- imjournal: imported patches from 7.4.1
- omprog: add support for command line parameters
- added experimental TCP stream compression (imptcp only, currently)
- added BSD-specific syslog facilities
* "console"
* "bsd_security" - this is called "security" under BSD, but that name
was unfortunately already taken by some standard facility. So I
did the (hopefully) second-best thing and renamed it a little.
- imported fixes from 7.4.2 (especially build problems on FreeBSD)
- bugfix: imptcp did not properly initialize compression status variable
could lead to segfault if stream:always compression mode was selected
---------------------------------------------------------------------------
Version 7.5.0 [devel] 2013-06-11
- imrelp: implement "ruleset" module parameter
- imrelp/omrelp: add TLS & compression (zip) support
- omrelp: add "rebindInterval" parameter
- add -S command line option to specify IP address to use for RELP client
connections
Thanks to Axel Rau for the patch.
---------------------------------------------------------------------------
Version 7.4.11 [v7.4-stable] *never released*
- imjournal enhancements:
* log entries with empty message field are no longer ignored
* invalid facility and severity values are replaced by defaults
* new config parameters to set default facility and severity
Thanks to Tomas Heinrich for implementing this
---------------------------------------------------------------------------
Version 7.4.10 [v7.4-stable] 2014-02-12
- bugfix: json templates are improperly created
Strings miss the terminating NUL character, which obviously can lead
to all sorts of problems.
See also: https://github.com/rsyslog/rsyslog/issues/27
Thanks to Alain for the analysis and the patch.
- ompgsql bugfix: improper handling of auto-backgrounding mode
If rsyslog was set to auto-background itself (default code behaviour, but
many distros now turn it off for good reason), ompgsql could not
properly connect. This could even lead to a segfault. The core reason
was that a PG session handle was kept open over a fork, something that
is explicitely forbidden in the PG API.
Thanks to Alain for the analysis and the patch.
---------------------------------------------------------------------------
Version 7.4.9 [v7.4-stable] 2014-01-22
- added ProcessInternalMessages global system parameter
This permits to inject rsyslog status messages into *another* main
syslogd or the journal.
- new dependency: liblogging-stdlog (for submitting to external logger)
- bugfix: imuxsock input parameters were not accepted
due to copy&paste error. Thanks to Andy Goldstein for the fix.
- bugfix: potential double-free in RainerScript equal comparison
happens if the left-hand operand is JSON object and the right-hand
operand is a non-string that does not convert to a number (for
example, it can be another JSON object, probably the only case that
could happen in practice). This is very unlikely to be triggered.
- bugfix: some RainerScript Json(Variable)/string comparisons were wrong
---------------------------------------------------------------------------
Version 7.4.8 [v7.4-stable] 2014-01-08
- rsgtutil provides better error messages on unfinished signature blocks
- bugfix: guard against control characters in internal (error) messages
Thanks to Ahto Truu for alerting us.
- bugfix: immark did emit messages under kern.=info instead of syslog.=info
Note that his can potentially break exisiting configurations that
rely on immark sending as kern.=info. Unfortunately, we cannot leave
this unfixed as we never should emit messages under the kern facility.
---------------------------------------------------------------------------
Version 7.4.7 [v7.4-stable] 2013-12-10
- bugfix: limiting queue disk space did not work properly
* queue.maxdiskspace actually initializes queue.maxfilesize
* total size of queue files was not checked against
queue.maxdiskspace for disk assisted queues.
Thanks to Karol Jurak for the patch.
- bugfix: linux kernel-like ratelimiter did not work properly with all
inputs (for example, it did not work with imdup). The reason was that
the PRI value was used, but that needed parsing of the message, which
was done too late.
- bugfix: disk queues created files in wrong working directory
if the $WorkDirectory was changed multiple times, all queues only
used the last value set.
- bugfix: legacy directive $ActionQueueWorkerThreads was not honored
- bugfix: segfault on startup when certain script constructs are used
e.g. "if not $msg ..."
- bugfix: imuxsock: UseSysTimeStamp config parameter did not work correctly
Thanks to Tomas Heinrich for alerting us and provinding a solution
suggestion.
- bugfix: $SystemLogUseSysTimeStamp/$SystemLogUsePIDFromSystem did not work
Thanks to Tomas Heinrich for the patch.
- improved checking of queue config parameters on startup
- bugfix: call to ruleset with async queue did not use the queue
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=443
- bugfix: if imtcp is loaded and no listeners are configured (which is
uncommon), rsyslog crashes during shutdown.
---------------------------------------------------------------------------
Version 7.4.6 [v7.4-stable] 2013-10-31
- bugfix: potential abort during HUP
This could happen when one of imklog, imzmq3, imkmsg, impstats,
imjournal, or imuxsock were under heavy load during a HUP.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=489
Thanks to Guy Rozendorn for reporting the problem and Peval Levhshin for
his analysis.
- bugfix: imtcp flowControl parameter incorrectly defaulted to "off"
This could cause message loss on systems under heavy load and was
a change-of-behaviour to previous version. This is a regression
most probably introduced in 5.9.0 (but did not try hard to find the
exact point of its introduction).
- now requires libestr 0.1.9 as earlier versions lead to problems with
number handling in RainerScript
- bugfix: memory leak in strlen() RainerScript function
Thanks to Gregoire Seux for reportig this bug.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=486
- bugfix: buffer overrun if re_extract function was called for submatch 50
Thanks to Pavel Levshin for reporting the problem and its location.
- bugfix: memleak in re_extract() function
Thanks to Pavel Levshin for reporting this problem.
- bugfix: potential abort in RainerScript optimizer
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=488
Thanks to Thomas Doll for reporting the problem and Pavel Levshin for
fixing it.
- bugfix: memory leak in omhiredis
Thanks to Pavel Levshin for the fix
- bugfix: segfault if variable was assigned to non-container subtree
Thanks to Pavel Levshin for the fix
---------------------------------------------------------------------------
Version 7.4.5 [v7.4-stable] 2013-10-22
- mmanon: removed the check for specific "terminator characters" after
last octet. As it turned out, this didn't work in practice as there
was an enormous set of potential terminator chars -- so removing
them was the best thing to do. Note that this may change behaviour of
existing installations. Yet, we still consider this an important
bugfix, that should be applied to the stable branch.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=477
Thanks to Muri Cicanor for initiating the discussion
- now requires libestr 0.1.8 as early versions had a nasty bug in
string comparisons
- omelasticsearch: add failed.httprequests stats counter
- bugfix: invalid property filter was not properly disabled in ruleset
Note that this bugfix introduces a very slight memory leak, which is
cosmetic, as it just holds data until termination that is no longer
needed. It is just the part of the config that was invalid. We will
"fix" this "issue" in the devel version first, as the fix is a bit
too intrusive to do without hard need in the stable version.
- bugfix: segfault if re_extract() function was used and no match found
- bugfix: potential misadressing on startup if property-filter was used
This could happen if the property name was longer than 127 chars, a case
that would not happen in practice.
- bugfix: omelasticsearch: correct failed.http stats counter
- bugfix: omelasticsearch: did not correctly initialize stats counters
- bugfix: omelasticsearch: failed.es counter was only maintained in bulk mode
This usually did not lead to any problems, because they are in static
memory, which is initialized to zero by the OS when the plugin is
loaded. But it may cause problems especially on systems that do not
support atomic instructions - in this case the associated mutexes also
did not get properly initialized.
- bugfix: mmanon did not detect all IP addresses in rewrite mode
The problem occured if two IPs were close to each other and the first one
was shrunk.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=485
Thanks to micah-at-riseup.net for reporting this bug
- bugfix: mmanon sometimes used invalid replacement char in simple mode
depending on configuration sequence, the replacement character was set
to 's' instead of the correct value. Most importantly, it was set to
's' if simple mode was selected and no replacement char set.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=484
Thanks to micah-at-riseup.net for reporting this bug
- bugfix: memory leak in mmnormalize
- bugfix: array-based ==/!= comparisions lead to invalid results
This was a regression introduced in 7.3.5 bei the PRI optimizer
- bugfix: omprog blocked signals to executed programs
The made it impossible to send signals to programs executed via
omprog.
Thanks to Risto Vaarandi for the analysis and a patch.
- bugfix: doc: imuxsock legacy param $SystemLogSocketParseTrusted was
misspelled
Thanks to David Lang for alerting us
- bugfix: imfile "facility" input parameter improperly handled
caused facility not to be set, and severity to be overwritten with
the facility value.
Thanks to forum user dmunny for reporting this bug.
- bugfix: small memory leak in imfile when $ResetConfigVariables was used
Thanks to Grégory Nuyttens for reporting this bug and providig a fix
- bugfix: segfault on startup if TLS was used but no CA cert set
- bugfix: segfault on startup if TCP TLS was used but no cert or key set
- bugfix: some more build problems with newer json-c versions
Thanks to Michael Biebl for mentioning the problem.
- bugfix: build system: libgcrypt.h needed even if libgrcypt was disabled
Thanks to Jonny Törnbom for reporting this problem
---------------------------------------------------------------------------
Version 7.4.4 [v7.4-stable] 2013-09-03
- better error messages in GuardTime signature provider
Thanks to Ahto Truu for providing the patch.
- make rsyslog use the new json-c pkgconfig file if available
Thanks to the Gentoo team for the patches.
- bugfix: imfile parameter "persistStateInterval" was unusable
due to a case typo in imfile; work-around was to use legacy config
Thanks to Brandon Murphy for reporting this bug.
- bugfix: TLV16 flag encoding error in signature files from GT provider
This fixes a problem where the TLV16 flag was improperly encoded.
Unfortunately, existing files already have the bug and may not properly
be processed. The fix uses constants from the GuardTime API lib to
prevent such problems in the future.
Thanks to Ahto Truu for providing the patch.
- bugfix: slightly malformed SMTP handling in ommail
- bugfix: segfault in omprog if no template was provided (now dflt is used)
- bugfix: segfault in ompipe if no template was provided (now dflt is used)
- bugfix: segfault in omsnmp if no template was provided (now dflt is used)
- bugfix: some omsnmp optional config params were flagged as mandatory
- bugfix: segfault in omelasticsearch when resuming queued messages
after restarting Elasticsearch
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=464
- bugfix: imtcp addtlframedelimiter could not be set to zero
Thanks to Chris Norton for alerting us.
- doc bugfix: remove no-longer existing omtemplate from developer doc
was specifically mentioned as a sample for creating new plugins
Thanks to Yannick Brosseau for alerting us of this problem.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=473
---------------------------------------------------------------------------
Version 7.4.3 [v7.4-stable] 2013-07-18
- bugfix: queue file size was not correctly processed
this could lead to using one queue file per message for sizes >2GiB
Thanks to Tomas Heinrich for the patch.
- bugfix: $QHOUR/$HHOUR were always "00" or "01"
regression some time between v5 and here
Thanks to forum user rjmcinty for reporting this bug
- bugfix: testbench tool chkseq did improperly report invalid file
This happened when permitted duplicate values existed in the very
last lines, right before end-of-file.
Thanks to Radu Gheorghe for reporting this bug.
---------------------------------------------------------------------------
Version 7.4.3 [v7.4-stable] 2013-07-18
- bugfix: memory leak if disk queues were used and json data present
- bugfix: CEE/json data was lost during disk queue operation
- bugfix: potential segfault during startup on invalid config
could happen if invalid actions were present, which could lead
to improper handling in optimizer.
- bugfix: 100% CPU utilization when DA queue became full
- bugfix: omlibdbi did not properly close connection on some errors
This happened to errors occuring in Begin/End Transaction entry
points.
- cosmetic bugfix: file name buffer was not freed on disk queue destruction
This was an extremely small one-time per run memleak, so nothing of
concern. However, it bugs under valgrind and similar memory debuggers.
- fix build on FreeBSD
Thanks to Christiano Rolim for the patch
---------------------------------------------------------------------------
Version 7.4.2 [v7.4-stable] 2013-07-04
- bugfix: in RFC5425 TLS, multiple wildcards in auth could cause segfault
- bugfix: RainerScript object required parameters were not properly
checked - this clould result to segfaults on startup if parameters
were missing.
- bugfix: double-free in omelasticsearch
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=461
a security advisory for this bug is available at:
http://www.lsexperts.de/advisories/lse-2013-07-03.txt
CVE: CVE-2013-4758
PLEASE NOTE: This issue only existed if omelasticsearch was used
in a non-default configuration, where the "errorfile" parameter
was specified. Without that parameter set, the bug could not
be triggered.
Thanks to Markus Vervier and Marius Ionescu for providing a detailled
bug report. Special thanks to Markus for coordinating his security
advisory with us.
- bugfix: omrelp potential segfault at startup on invalid config parameters
- bugfix: small memory leak when $uptime property was used
- bugfix: potential segfault on rsyslog termination in imudp
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=456
- bugfix: lmsig_gt abort on invalid configuration parameters
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=448
Thanks to Risto Laanoja for the patch.
- imtcp: fix typo in "listner" parameter, which is "listener"
Currently, both names are accepted.
- solved build problems on FreeBSD
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=457
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=458
Thanks to Christiano for reproting and suggesting patches
- solved build problems on CENTOS5
---------------------------------------------------------------------------
Version 7.4.1 [v7.4-stable] 2013-06-17
- imjournal: add ratelimiting capability
The original imjournal code did not support ratelimiting at all. We
now have our own ratelimiter. This can mitigate against journal
database corruption, when the journal re-sends old data. This is a
current bug in systemd journal, but we won't outrule this to happen
in the future again. So it is better to have a safeguard in place.
By default, we permit 20,000 messages witin 10 minutes. This may
be a bit restrictive, but given the risk potential it seems reasonable.
Users requiring larger traffic flows can always adjust the value.
- bugfix: potential loop in rate limiting
if the message that tells about rate-limiting gets rate-limited itself,
it will potentially create and endless loop
- bugfix: potential segfault in imjournal if journal DB is corrupted
- bugfix: prevent a segfault in imjournal if state file is not defined
- bugfix imzmq3: potential segfault on startup
if no problem happend at startup, everything went fine
Thanks to Hongfei Cheng and Brian Knox for the patch
---------------------------------------------------------------------------
Version 7.4.0 [v7.4-stable] 2013-06-06
This starts a new stable branch based on 7.3.15 plus the following changes:
- add --enable-cached-man-pages ./configure option
permits to build rsyslog on a system where rst2man is not installed. In
that case, cached versions of the man pages are used (they were built
during "make dist", so they should be current for the version in
question.
- doc bugfix: ReadMode wrong in imfile doc, two values were swapped
Thanks to jokajak@gmail.com for mentioning this
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=450
- imjournal: no longer do periodic wakeup
- bugfix: potential hang *in debug mode* on rsyslogd termination
This ONLY affected rsyslogd if it were running with debug output
enabled.
- bugfix: $template statement with multiple spaces lead to invalid tpl name
If multiple spaces were used in front of the template name, all but one
of them became actually part of the template name. So
$template a,"..." would be name " a", and as such "a" was not
available, e.g. in
*.* /var/log/file;a
This is a legacy config problem. As it was unreported for many years,
no backport of the fix to old versions will happen.
This is a long-standing bug that was only recently reported by forum
user mc-sim.
Reference: http://kb.monitorware.com/post23448.html
- 0mq fixes; credits to Hongfei Cheng and Brian Knox
---------------------------------------------------------------------------
Version 7.3.15 [beta] 2013-05-15
- bugfix: problem in build system (especially when cross-compiling)
Thanks to Tomas Heinrich and winfried_mb2@xmsnet.nl for the patch.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=445
- bugfix: imjournal had problem with systemd journal API change
- imjournal: now obtain and include PID
- bugfix: .logsig files had tlv16 indicator bit at wrong offset
- bugfix: omrelp legacy config parameters set a timeout of zero
which lead the legacy config to be unusable.
- bugfix: segfault on startup if a disk queue was configure without file
name
Now this triggers an error message and the queue is changed to
linkedList type.
- bugfix: invalid addressing in string class (recent regression)
---------------------------------------------------------------------------
Version 7.3.14 [beta] 2013-05-06
- bugfix: some man pages were not properly installed
either rscryutil or rsgtutil man was installed, but not both
Thanks to Marius Tomaschewski for the patch.
- bugfix: potential segfault on startup when builtin module was specified
in module() statement.
Thanks to Marius Tomaschewski for reporting the bug.
- bugfix: segfault due to invalid dynafile cache handling
Accidently, the old-style cache size parameter was used when the
dynafile cache was created in a RainerScript action. If the old-style
size was lower than the one actually set, this lead to misadressing
when the size was overrun, and that could lead to all kinds of
"interesting things", often in segfaults.
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=440
---------------------------------------------------------------------------
Version 7.3.13 [beta] 2013-04-29
- added omrabbitmq module (contributed, untested)
Note: this is unsupported and as such was moved immediately into the
beta version.
Thanks to Vaclav Tomec for providing this module.
- bugfix: build problem when --enable-encryption was not selected
Thanks to Michael Biebl for fixing this.
- doc bugfix: omfile parameter "VeryRobustZip" was documentas as
"VeryReliableZip"
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=437
Thanks to Thomas Doll for reporting this.
---------------------------------------------------------------------------
Version 7.3.12 [devel] 2013-04-25
- added doc for omelasticsearch
Thanks to Radu Gheorghe for the doc contribution.
- omelasticsearch: _id field support for bulk operations
closes: http://bugzilla.adiscon.com/show_bug.cgi?id=392
Thanks to Jérôme Renard for the idea and patches.
- max number of templates for plugin use has been increased to five
- platform compatibility enhancement: solve compile issue with libgcrypt
do not use GCRY_CIPHER_MODE_AESWRAP where not available