diff options
Diffstat (limited to 'plugins/pmnull/pmnull.c')
| -rw-r--r-- | plugins/pmnull/pmnull.c | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/plugins/pmnull/pmnull.c b/plugins/pmnull/pmnull.c new file mode 100644 index 0000000..df389d7 --- /dev/null +++ b/plugins/pmnull/pmnull.c @@ -0,0 +1,187 @@ +/* pmnull.c + * This is a parser module for CISCO IOS "syslog" format. + * + * File begun on 2014-07-07 by RGerhards + * + * Copyright 2014-2015 Rainer Gerhards and Adiscon GmbH. + * + * This file is part of rsyslog. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * -or- + * see COPYING.ASL20 in the source distribution + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "config.h" +#include "rsyslog.h" +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include <errno.h> +#include <ctype.h> +#include "conf.h" +#include "syslogd-types.h" +#include "template.h" +#include "msg.h" +#include "module-template.h" +#include "glbl.h" +#include "errmsg.h" +#include "parser.h" +#include "datetime.h" +#include "unicode-helper.h" + +MODULE_TYPE_PARSER +MODULE_TYPE_NOKEEP +PARSER_NAME("rsyslog.pmnull") +MODULE_CNFNAME("pmnull") + +/* internal structures */ +DEF_PMOD_STATIC_DATA +DEFobjCurrIf(glbl) +DEFobjCurrIf(parser) +DEFobjCurrIf(datetime) + + +/* parser instance parameters */ +static struct cnfparamdescr parserpdescr[] = { + { "tag", eCmdHdlrString, 0 }, + { "syslogfacility", eCmdHdlrFacility, 0 }, + { "syslogseverity", eCmdHdlrSeverity, 0 } +}; +static struct cnfparamblk parserpblk = + { CNFPARAMBLK_VERSION, + sizeof(parserpdescr)/sizeof(struct cnfparamdescr), + parserpdescr + }; + +struct instanceConf_s { + const char *tag; + size_t lenTag; + int pri; +}; + +BEGINisCompatibleWithFeature +CODESTARTisCompatibleWithFeature + if(eFeat == sFEATUREAutomaticSanitazion) + iRet = RS_RET_OK; + if(eFeat == sFEATUREAutomaticPRIParsing) + iRet = RS_RET_OK; +ENDisCompatibleWithFeature + + +/* create input instance, set default parameters, and + * add it to the list of instances. + */ +static rsRetVal +createInstance(instanceConf_t **pinst) +{ + instanceConf_t *inst; + DEFiRet; + CHKmalloc(inst = malloc(sizeof(instanceConf_t))); + inst->tag = NULL; + *pinst = inst; +finalize_it: + RETiRet; +} + + +BEGINfreeParserInst +CODESTARTfreeParserInst + dbgprintf("pmnull: free parser instance %p\n", pInst); +ENDfreeParserInst + + +BEGINnewParserInst + struct cnfparamvals *pvals = NULL; + int i; + int syslogfacility = 1; /* default as of rfc3164 */ + int syslogseverity = 5; /* default as of rfc3164 */ +CODESTARTnewParserInst + DBGPRINTF("newParserInst (pmnull)\n"); + + inst = NULL; + CHKiRet(createInstance(&inst)); + + if(lst == NULL) + FINALIZE; /* just set defaults, no param block! */ + + if((pvals = nvlstGetParams(lst, &parserpblk, NULL)) == NULL) { + ABORT_FINALIZE(RS_RET_MISSING_CNFPARAMS); + } + + if(Debug) { + dbgprintf("parser param blk in pmnull:\n"); + cnfparamsPrint(&parserpblk, pvals); + } + + for(i = 0 ; i < parserpblk.nParams ; ++i) { + if(!pvals[i].bUsed) + continue; + if(!strcmp(parserpblk.descr[i].name, "tag")) { + inst->tag = (const char *) es_str2cstr(pvals[i].val.d.estr, NULL); + inst->lenTag = strlen(inst->tag); + } else if(!strcmp(parserpblk.descr[i].name, "syslogfacility")) { + syslogfacility = pvals[i].val.d.n; + } else if(!strcmp(parserpblk.descr[i].name, "syslogseverity")) { + syslogseverity = pvals[i].val.d.n; + } else { + dbgprintf("pmnull: program error, non-handled " + "param '%s'\n", parserpblk.descr[i].name); + } + } + inst->pri = syslogfacility*8 + syslogseverity; +finalize_it: +CODE_STD_FINALIZERnewParserInst + if(lst != NULL) + cnfparamvalsDestruct(pvals, &parserpblk); + if(iRet != RS_RET_OK) + freeParserInst(inst); +ENDnewParserInst + + +BEGINparse2 +CODESTARTparse2 + DBGPRINTF("Message will now be parsed by pmnull\n"); + if(pInst->tag != NULL) { + MsgSetTAG(pMsg, (uchar *)pInst->tag, pInst->lenTag); + } + msgSetPRI(pMsg, pInst->pri); + MsgSetMSGoffs(pMsg, 0); +ENDparse2 + + +BEGINmodExit +CODESTARTmodExit + /* release what we no longer need */ + objRelease(glbl, CORE_COMPONENT); + objRelease(parser, CORE_COMPONENT); + objRelease(datetime, CORE_COMPONENT); +ENDmodExit + + +BEGINqueryEtryPt +CODESTARTqueryEtryPt +CODEqueryEtryPt_STD_PMOD2_QUERIES +CODEqueryEtryPt_IsCompatibleWithFeature_IF_OMOD_QUERIES +ENDqueryEtryPt + + +BEGINmodInit() +CODESTARTmodInit + *ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */ +CODEmodInit_QueryRegCFSLineHdlr + CHKiRet(objUse(glbl, CORE_COMPONENT)); + CHKiRet(objUse(parser, CORE_COMPONENT)); + CHKiRet(objUse(datetime, CORE_COMPONENT)); + + DBGPRINTF("pmnull parser init called\n"); +ENDmodInit |