From 1262b90373d6a5f10eeb3fe7fa2c52908d4f9094 Mon Sep 17 00:00:00 2001 From: Brian Knox Date: Wed, 21 Mar 2012 07:40:43 +0100 Subject: initial shot at omhiredis --- ChangeLog | 1 + Makefile.am | 4 + configure.ac | 22 ++ plugins/omhiredis/COPYING | 674 +++++++++++++++++++++++++++++++++++++++ plugins/omhiredis/COPYING_LESSER | 165 ++++++++++ plugins/omhiredis/Makefile.am | 7 + plugins/omhiredis/README | 29 ++ plugins/omhiredis/omhiredis.c | 249 +++++++++++++++ 8 files changed, 1151 insertions(+) create mode 100644 plugins/omhiredis/COPYING create mode 100644 plugins/omhiredis/COPYING_LESSER create mode 100644 plugins/omhiredis/Makefile.am create mode 100644 plugins/omhiredis/README create mode 100644 plugins/omhiredis/omhiredis.c diff --git a/ChangeLog b/ChangeLog index 4b560e61..3d0cfdab 100644 --- a/ChangeLog +++ b/ChangeLog @@ -2,6 +2,7 @@ Version 6.3.8 [DEVEL] 2012-02-?? - added "json" property replacer option to support JSON encoding on a per-property basis +- added omhiredis (contributed module) - added mmjsonparse to support recognizing and parsing JSON enhanced syslog messages - upgraded more plugins to support the new v6 config format: diff --git a/Makefile.am b/Makefile.am index 152e1ec6..999404e7 100644 --- a/Makefile.am +++ b/Makefile.am @@ -154,6 +154,10 @@ if ENABLE_OMMONGODB SUBDIRS += plugins/ommongodb endif +if ENABLE_OMHIREDIS +SUBDIRS += plugins/omhiredis +endif + if ENABLE_OMUXSOCK SUBDIRS += plugins/omuxsock endif diff --git a/configure.ac b/configure.ac index 3f5b6e6e..8642da2f 100644 --- a/configure.ac +++ b/configure.ac @@ -1237,6 +1237,26 @@ fi AM_CONDITIONAL(ENABLE_OMMONGODB, test x$enable_ommongodb = xyes) # end of mongodb code +# HIREDIS SUPPORT + +AC_ARG_ENABLE(omhiredis, + [AS_HELP_STRING([--enable-omhiredis],[Compiles omhiredis template module @<:@default=no@:>@])], + [case "${enableval}" in + yes) enable_omhiredis="yes" ;; + no) enable_omhiredis="no" ;; + *) AC_MSG_ERROR(bad value ${enableval} for --enable-omhiredis) ;; + esac], + [enable_omhiredis=no] +) +# +if test "x$enable_omhiredis" = "xyes"; then + PKG_CHECK_MODULES(HIREDIS, hiredis >= 0.10.1) + AC_SUBST(HIREDIS_CFLAGS) + AC_SUBST(HIREDIS_LIBS) +fi +AM_CONDITIONAL(ENABLE_OMHIREDIS, test x$enable_omhiredis = xyes) + +# END HIREDIS SUPPORT AC_CONFIG_FILES([Makefile \ runtime/Makefile \ @@ -1278,6 +1298,7 @@ AC_CONFIG_FILES([Makefile \ plugins/omoracle/Makefile \ plugins/omudpspoof/Makefile \ plugins/ommongodb/Makefile \ + plugins/omhiredis/Makefile \ plugins/mmnormalize/Makefile \ plugins/mmjsonparse/Makefile \ plugins/mmaudit/Makefile \ @@ -1342,6 +1363,7 @@ echo " MySql support enabled: $enable_mysql" echo " libdbi support enabled: $enable_libdbi" echo " PostgreSQL support enabled: $enable_pgsql" echo " mongodb support enabled: $enable_ommongodb" +echo " hiredis support enabled: $enable_omhiredis" echo " Oracle (OCI) support enabled: $enable_oracle" echo echo "---{ protocol support }---" diff --git a/plugins/omhiredis/COPYING b/plugins/omhiredis/COPYING new file mode 100644 index 00000000..f44bd493 --- /dev/null +++ b/plugins/omhiredis/COPYING @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If the Library as you +received it does not specify a version number of the GNU Lesser +General Public License, you may choose any version of the GNU Lesser +General Public License ever published by the Free Software Foundation. + + If the Library as you received it specifies that a proxy can decide +whether future versions of the GNU Lesser General Public License shall +apply, that proxy's public statement of acceptance of any version is +permanent authorization for you to choose that version for the +Library. diff --git a/plugins/omhiredis/Makefile.am b/plugins/omhiredis/Makefile.am new file mode 100644 index 00000000..2332be4b --- /dev/null +++ b/plugins/omhiredis/Makefile.am @@ -0,0 +1,7 @@ +pkglib_LTLIBRARIES = omhiredis.la +omhiredis_la_SOURCES = omhiredis.c +omhiredis_la_CPPFLAGS = $(RSRT_CFLAGS) $(PTHREADS_CFLAGS) $(HIREDIS_CFLAGS) +omhiredis_la_LDFLAGS = -module -avoid-version +omhiredis_la_LIBADD = $(HIREDIS_LIBS) + +EXTRA_DIST = diff --git a/plugins/omhiredis/README b/plugins/omhiredis/README new file mode 100644 index 00000000..5ca31373 --- /dev/null +++ b/plugins/omhiredis/README @@ -0,0 +1,29 @@ +Redis Outplug Plugin using hiredis library + +tested in Centos 6.2 + +BUILDING THIS PLUGIN +Requires the hiredis C client library: https://github.com/antirez/hiredis/ + +in your /etc/rsyslog.conf, together with other modules: + +TODO + +* Error handling for redis calls +* Integrating with impstats +* Clean up code +* Make it work with rsyslog batch mode +* Fix bugs + +Brian Knox + +--------------------------------------------------------------------------------------------- +$ModLoad omhiredis.so # provides redis output + +$template TestRedis, "hincrby progcount %programname% 1" + +if $msg then { + action(type="omhiredis", template="TestRedis") +} +--------------------------------------------------------------------------------------------- + diff --git a/plugins/omhiredis/omhiredis.c b/plugins/omhiredis/omhiredis.c new file mode 100644 index 00000000..3a23778b --- /dev/null +++ b/plugins/omhiredis/omhiredis.c @@ -0,0 +1,249 @@ +/* omhiredis.c + * Copyright 2012 Talksum, Inc +* +* This program is free software: you can redistribute it and/or +* modify it under the terms of the GNU Lesser General Public License +* as published by the Free Software Foundation, either version 3 of +* the License, or (at your option) any later version. +* +* This program 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 +* Lesser General Public License for more details. +* +* You should have received a copy of the GNU Lesser General Public +* License along with this program. If not, see +* . +* +* Author: Brian Knox +* +*/ + + + +#include "config.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "rsyslog.h" +#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 +MODULE_TYPE_NOKEEP +MODULE_CNFNAME("omhiredis") +/* internal structures + */ +DEF_OMOD_STATIC_DATA +DEFobjCurrIf(errmsg) + +typedef struct _instanceData { + redisContext *conn; + uchar *server; + int port; + unsigned uLastHiredisErrno; + uchar *tplName; +} instanceData; + + +static struct cnfparamdescr actpdescr[] = { + { "server", eCmdHdlrGetWord, 0 }, + { "serverport", eCmdHdlrInt, 0 }, + { "template", eCmdHdlrGetWord, 1 } +}; +static struct cnfparamblk actpblk = + { CNFPARAMBLK_VERSION, + sizeof(actpdescr)/sizeof(struct cnfparamdescr), + actpdescr + }; + +BEGINcreateInstance +CODESTARTcreateInstance +ENDcreateInstance + +BEGINisCompatibleWithFeature +CODESTARTisCompatibleWithFeature + if(eFeat == sFEATURERepeatedMsgReduction) + iRet = RS_RET_OK; +ENDisCompatibleWithFeature + +static void closeHiredis(instanceData *pData) +{ + if(pData->conn != NULL) { + redisFree(pData->conn); + pData->conn = NULL; + } +} + + +BEGINfreeInstance +CODESTARTfreeInstance + closeHiredis(pData); + free(pData->server); + free(pData->port); + free(pData->tplName); +ENDfreeInstance + + +BEGINdbgPrintInstInfo +CODESTARTdbgPrintInstInfo + /* nothing special here */ +ENDdbgPrintInstInfo + + +static rsRetVal initHiredis(instanceData *pData, int bSilent) +{ + char *server; + DEFiRet; + + server = (pData->server == NULL) ? "127.0.0.1" : (char*) pData->server; + DBGPRINTF("omhiredis: trying connect to '%s' at port %d\n", server, pData->port); + + struct timeval timeout = { 1, 500000 }; // 1.5 seconds + pData->conn = redisConnectWithTimeout(server, pData->port, timeout); + if (pData->conn->err) { + if(!bSilent) + errmsg.LogError(0, RS_RET_SUSPENDED, + "can not initialize redis handle"); + ABORT_FINALIZE(RS_RET_SUSPENDED); + } + +finalize_it: + RETiRet; +} + +rsRetVal writeHiredis(uchar *message, instanceData *pData) +{ + redisReply *reply; + DEFiRet; + + if(pData->conn == NULL) { + CHKiRet(initHiredis(pData, 0)); + } + + reply = redisCommand(pData->conn, message); + if (!reply->integer) { + perror ("redisCommand()"); + dbgprintf("omhiredis: redisCommand error\n"); + freeReplyObject(reply); + ABORT_FINALIZE(RS_RET_ERR); + } else { + freeReplyObject(reply); + } + + +finalize_it: + if(iRet == RS_RET_OK) { + pData->uLastHiredisErrno = 0; /* reset error for error supression */ + } + + RETiRet; +} + +BEGINtryResume +CODESTARTtryResume + if(pData->conn == NULL) { + iRet = initHiredis(pData, 1); + } +ENDtryResume + +BEGINdoAction +CODESTARTdoAction + iRet = writeHiredis(ppString[0], pData); +ENDdoAction + + +static inline void +setInstParamDefaults(instanceData *pData) +{ + pData->server = NULL; + pData->port = 6379; + pData->tplName = NULL; +} + +BEGINnewActInst + struct cnfparamvals *pvals; + int i; +CODESTARTnewActInst + if((pvals = nvlstGetParams(lst, &actpblk, NULL)) == NULL) { + ABORT_FINALIZE(RS_RET_MISSING_CNFPARAMS); + } + + CHKiRet(createInstance(&pData)); + setInstParamDefaults(pData); + + CODE_STD_STRING_REQUESTparseSelectorAct(1) + for(i = 0 ; i < actpblk.nParams ; ++i) { + if(!pvals[i].bUsed) + continue; + if(!strcmp(actpblk.descr[i].name, "server")) { + pData->server = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(actpblk.descr[i].name, "serverport")) { + pData->port = (int) pvals[i].val.d.n, NULL; + } else if(!strcmp(actpblk.descr[i].name, "template")) { + pData->tplName = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else { + dbgprintf("omhiredis: program error, non-handled " + "param '%s'\n", actpblk.descr[i].name); + } + } + + if(pData->tplName == NULL) { + dbgprintf("omhiredis: action requires a template name"); + ABORT_FINALIZE(RS_RET_MISSING_CNFPARAMS); + } + + // template string 0 is just a regular string + OMSRsetEntry(*ppOMSR, 0,(uchar*)pData->tplName, OMSR_NO_RQD_TPL_OPTS); + +CODE_STD_FINALIZERnewActInst + cnfparamvalsDestruct(pvals, &actpblk); +ENDnewActInst + + +BEGINparseSelectorAct +CODESTARTparseSelectorAct + +// tell the engine we only want one template string +CODE_STD_STRING_REQUESTparseSelectorAct(1) + if(!strncmp((char*) p, ":omhiredis:", sizeof(":omhiredis:") - 1)) { + errmsg.LogError(0, RS_RET_LEGA_ACT_NOT_SUPPORTED, + "omhiredis supports only v6 config format, use: " + "action(type=\"omhiredis\" server=...)"); + } + ABORT_FINALIZE(RS_RET_CONFLINE_UNPROCESSED); +CODE_STD_FINALIZERparseSelectorAct +ENDparseSelectorAct + + +BEGINmodExit +CODESTARTmodExit +ENDmodExit + + +BEGINqueryEtryPt +CODESTARTqueryEtryPt +CODEqueryEtryPt_STD_OMOD_QUERIES +CODEqueryEtryPt_STD_CONF2_OMOD_QUERIES +ENDqueryEtryPt + +BEGINmodInit() +CODESTARTmodInit + *ipIFVersProvided = CURR_MOD_IF_VERSION; /* only supports rsyslog 6 configs */ +CODEmodInit_QueryRegCFSLineHdlr + CHKiRet(objUse(errmsg, CORE_COMPONENT)); + INITChkCoreFeature(bCoreSupportsBatching, CORE_FEATURE_BATCHING); + DBGPRINTF("omhiredis: module compiled with rsyslog version %s.\n", VERSION); +ENDmodInit -- cgit