From c9841fbd368e58674cc166e6186b2a29f9895211 Mon Sep 17 00:00:00 2001 From: Rainer Gerhards Date: Tue, 17 Nov 2009 08:47:30 +0100 Subject: added a skeleton for omdbalerting by request of Phil Reilly ... who intends to add a database-driven alert functionality. The change provides the necessary rsyslog plumbing, but no functionality at all. --- Makefile.am | 4 + configure.ac | 16 ++++ plugins/omdbalerting/Makefile.am | 8 ++ plugins/omdbalerting/omdbalerting.c | 144 ++++++++++++++++++++++++++++++++++++ 4 files changed, 172 insertions(+) create mode 100644 plugins/omdbalerting/Makefile.am create mode 100644 plugins/omdbalerting/omdbalerting.c diff --git a/Makefile.am b/Makefile.am index 5f9d35fe..52a716fd 100644 --- a/Makefile.am +++ b/Makefile.am @@ -99,6 +99,10 @@ if ENABLE_OMRULESET SUBDIRS += plugins/omruleset endif +if ENABLE_OMDBALERTING +SUBDIRS += plugins/omdbalerting +endif + if ENABLE_OMUDPSPOOF SUBDIRS += plugins/omudpspoof endif diff --git a/configure.ac b/configure.ac index eeb2c2f4..2ce99b94 100644 --- a/configure.ac +++ b/configure.ac @@ -805,6 +805,20 @@ AC_ARG_ENABLE(omruleset, AM_CONDITIONAL(ENABLE_OMRULESET, test x$enable_omruleset = xyes) +# settings for omdbalerting +AC_ARG_ENABLE(omdbalerting, + [AS_HELP_STRING([--enable-omdbalerting],[Compiles omdbalerting module @<:@default=no@:>@])], + [case "${enableval}" in + yes) enable_omdbalerting="yes" ;; + no) enable_omdbalerting="no" ;; + *) AC_MSG_ERROR(bad value ${enableval} for --enable-omdbalerting) ;; + esac], + [enable_omdbalerting=no] +) +AM_CONDITIONAL(ENABLE_OMDBALERTING, test x$enable_omdbalerting = xyes) + + + # building the GUI (mostly for diagnostic reasons) AC_ARG_ENABLE(gui, [AS_HELP_STRING([--enable-gui],[Enable GUI programs @<:@default=no@:>@])], @@ -896,6 +910,7 @@ AC_CONFIG_FILES([Makefile \ plugins/omprog/Makefile \ plugins/omstdout/Makefile \ plugins/omruleset/Makefile \ + plugins/omdbalerting/Makefile \ plugins/imfile/Makefile \ plugins/imrelp/Makefile \ plugins/imdiag/Makefile \ @@ -937,6 +952,7 @@ echo " Mail support enabled: $enable_mail" echo " omprog module will be compiled: $enable_omprog" echo " omstdout module will be compiled: $enable_omstdout" echo " omruleset module will be compiled: $enable_omruleset" +echo " omdbalerting module will be compiled: $enable_omdbalerting" echo " omudpspoof module will be compiled: $enable_omudpspoof" echo " output template module will be compiled: $enable_omtemplate" echo diff --git a/plugins/omdbalerting/Makefile.am b/plugins/omdbalerting/Makefile.am new file mode 100644 index 00000000..becf29b0 --- /dev/null +++ b/plugins/omdbalerting/Makefile.am @@ -0,0 +1,8 @@ +pkglib_LTLIBRARIES = omdbalerting.la + +omdbalerting_la_SOURCES = omdbalerting.c +omdbalerting_la_CPPFLAGS = $(RSRT_CFLAGS) $(PTHREADS_CFLAGS) +omdbalerting_la_LDFLAGS = -module -avoid-version +omdbalerting_la_LIBADD = + +EXTRA_DIST = diff --git a/plugins/omdbalerting/omdbalerting.c b/plugins/omdbalerting/omdbalerting.c new file mode 100644 index 00000000..2e04391c --- /dev/null +++ b/plugins/omdbalerting/omdbalerting.c @@ -0,0 +1,144 @@ +/* omdbalerting.c + * generate alerts based on database contents - so far a skeleton + * left for implementation by somebody else (skeleton created on request). + * + * NOTE: read comments in module-template.h for more specifics! + * + * File begun on 2009-11-17 by RGerhards + * + * Copyright 2009 Rainer Gerhards and Adiscon GmbH. + * + * This file is part of rsyslog. + * + * Rsyslog is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * Rsyslog is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Rsyslog. If not, see . + * + * A copy of the GPL can be found in the file "COPYING" in this distribution. + */ +#include "config.h" +#include "rsyslog.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include "conf.h" +#include "syslogd-types.h" +#include "srUtils.h" +#include "template.h" +#include "module-template.h" +#include "errmsg.h" +#include "cfsysline.h" + +MODULE_TYPE_OUTPUT + +/* internal structures + */ +DEF_OMOD_STATIC_DATA + +/* config variables */ + + +typedef struct _instanceData { +} instanceData; + +BEGINcreateInstance +CODESTARTcreateInstance +ENDcreateInstance + + +BEGINisCompatibleWithFeature +CODESTARTisCompatibleWithFeature + if(eFeat == sFEATURERepeatedMsgReduction) + iRet = RS_RET_OK; +ENDisCompatibleWithFeature + + +BEGINfreeInstance +CODESTARTfreeInstance +ENDfreeInstance + + +BEGINdbgPrintInstInfo +CODESTARTdbgPrintInstInfo +ENDdbgPrintInstInfo + + +BEGINtryResume +CODESTARTtryResume +ENDtryResume + +BEGINdoAction +CODESTARTdoAction +ENDdoAction + + +BEGINparseSelectorAct +CODESTARTparseSelectorAct +CODE_STD_STRING_REQUESTparseSelectorAct(1) + /* first check if this config line is actually for us */ + if(strncmp((char*) p, ":omdbalerting:", sizeof(":dbalerting:") - 1)) { + ABORT_FINALIZE(RS_RET_CONFLINE_UNPROCESSED); + } + + /* ok, if we reach this point, we have something for us */ + p += sizeof(":omdbalerting:") - 1; /* eat indicator sequence (-1 because of '\0'!) */ + CHKiRet(createInstance(&pData)); + + /* check if a non-standard template is to be applied */ + if(*(p-1) == ';') + --p; + /* we request the standard interface via template, others may be more useful + * here. + */ + CHKiRet(cflineParseTemplateName(&p, *ppOMSR, 0, 0, (uchar*) "RSYSLOG_FileFormat")); +CODE_STD_FINALIZERparseSelectorAct +ENDparseSelectorAct + + +BEGINmodExit +CODESTARTmodExit +ENDmodExit + + +BEGINqueryEtryPt +CODESTARTqueryEtryPt +CODEqueryEtryPt_STD_OMOD_QUERIES +ENDqueryEtryPt + + + +/* Reset config variables for this module to default values. + */ +static rsRetVal resetConfigVariables(uchar __attribute__((unused)) *pp, void __attribute__((unused)) *pVal) +{ + DEFiRet; + RETiRet; +} + + +BEGINmodInit() +CODESTARTmodInit + *ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */ +CODEmodInit_QueryRegCFSLineHdlr + // SAMPLE! CHKiRet(omsdRegCFSLineHdlr((uchar *)"actionomdbalertingensurelfending", 0, eCmdHdlrBinary, NULL, + // &bEnsureLFEnding, STD_LOADABLE_MODULE_ID)); + CHKiRet(omsdRegCFSLineHdlr((uchar *)"resetconfigvariables", 1, eCmdHdlrCustomHandler, + resetConfigVariables, NULL, STD_LOADABLE_MODULE_ID)); +ENDmodInit + +/* vi:set ai: + */ -- cgit