diff options
Diffstat (limited to 'plugins/omudpspoof/omudpspoof.c')
| -rw-r--r-- | plugins/omudpspoof/omudpspoof.c | 85 |
1 files changed, 50 insertions, 35 deletions
diff --git a/plugins/omudpspoof/omudpspoof.c b/plugins/omudpspoof/omudpspoof.c index 48d7a68e..506fca77 100644 --- a/plugins/omudpspoof/omudpspoof.c +++ b/plugins/omudpspoof/omudpspoof.c @@ -83,6 +83,7 @@ MODULE_TYPE_OUTPUT MODULE_TYPE_NOKEEP +MODULE_CNFNAME("omudpspoof") /* internal structures */ @@ -105,14 +106,27 @@ typedef struct _instanceData { #define DFLT_SOURCE_PORT_START 32000 #define DFLT_SOURCE_PORT_END 42000 -/* config data */ -static uchar *pszTplName = NULL; /* name of the default template to use */ -static uchar *pszSourceNameTemplate = NULL; /* name of the template containing the spoofing address */ -static uchar *pszTargetHost = NULL; -static uchar *pszTargetPort = NULL; -static int iCompressionLevel = 0; /* zlib compressionlevel, the usual values */ -static int iSourcePortStart = DFLT_SOURCE_PORT_START; -static int iSourcePortEnd = DFLT_SOURCE_PORT_END; +typedef struct configSettings_s { + uchar *pszTplName; /* name of the default template to use */ + uchar *pszSourceNameTemplate; /* name of the template containing the spoofing address */ + uchar *pszTargetHost; + uchar *pszTargetPort; + int iCompressionLevel; /* zlib compressionlevel, the usual values */ + int iSourcePortStart; + int iSourcePortEnd; +} configSettings_t; +static configSettings_t cs; + +BEGINinitConfVars /* (re)set config variables to default values */ +CODESTARTinitConfVars + cs.pszTplName = NULL; + cs.pszSourceNameTemplate = NULL; + cs.pszTargetHost = NULL; + cs.pszTargetPort = NULL; + cs.iCompressionLevel = 0; + cs.iSourcePortStart = DFLT_SOURCE_PORT_START; + cs.iSourcePortEnd = DFLT_SOURCE_PORT_END; +ENDinitConfVars /* add some variables needed for libnet */ @@ -394,28 +408,28 @@ CODE_STD_STRING_REQUESTparseSelectorAct(2) p += sizeof(":omudpspoof:") - 1; /* eat indicator sequence (-1 because of '\0'!) */ CHKiRet(createInstance(&pData)); - sourceTpl = (pszSourceNameTemplate == NULL) ? UCHAR_CONSTANT("RSYSLOG_omudpspoofDfltSourceTpl") - : pszSourceNameTemplate; + sourceTpl = (cs.pszSourceNameTemplate == NULL) ? UCHAR_CONSTANT("RSYSLOG_omudpspoofDfltSourceTpl") + : cs.pszSourceNameTemplate; - if(pszTargetHost == NULL) { + if(cs.pszTargetHost == NULL) { errmsg.LogError(0, NO_ERRCODE, "No $ActionOMUDPSpoofTargetHost given, can not continue with this action."); ABORT_FINALIZE(RS_RET_HOST_NOT_SPECIFIED); } /* fill instance properties */ - CHKmalloc(pData->host = ustrdup(pszTargetHost)); - if(pszTargetPort == NULL) + CHKmalloc(pData->host = ustrdup(cs.pszTargetHost)); + if(cs.pszTargetPort == NULL) pData->port = NULL; else - CHKmalloc(pData->port = ustrdup(pszTargetPort)); - CHKiRet(OMSRsetEntry(*ppOMSR, 1, ustrdup(sourceTpl), OMSR_NO_RQD_TPL_OPTS)); - pData->compressionLevel = iCompressionLevel; - pData->sourcePort = pData->sourcePortStart = iSourcePortStart; - pData->sourcePortEnd = iSourcePortEnd; + CHKmalloc(pData->port = ustrdup(cs.pszTargetPort)); + CHKiRet(OMSRsetEntry(*ppOMSR, 1, ustrdup(cs.pszSourceNameTemplate), OMSR_NO_RQD_TPL_OPTS)); + pData->compressionLevel = cs.iCompressionLevel; + pData->sourcePort = pData->sourcePortStart = cs.iSourcePortStart; + pData->sourcePortEnd = cs.iSourcePortEnd; /* process template */ CHKiRet(cflineParseTemplateName(&p, *ppOMSR, 0, OMSR_NO_RQD_TPL_OPTS, - (pszTplName == NULL) ? (uchar*)"RSYSLOG_TraditionalForwardFormat" : pszTplName)); + (cs.pszTplName == NULL) ? (uchar*)"RSYSLOG_TraditionalForwardFormat" : cs.pszTplName)); CODE_STD_FINALIZERparseSelectorAct ENDparseSelectorAct @@ -427,12 +441,12 @@ ENDparseSelectorAct static void freeConfigVars(void) { - free(pszTplName); - pszTplName = NULL; - free(pszTargetHost); - pszTargetHost = NULL; - free(pszTargetPort); - pszTargetPort = NULL; + free(cs.pszTplName); + cs.pszTplName = NULL; + free(cs.pszTargetHost); + cs.pszTargetHost = NULL; + free(cs.pszTargetPort); + cs.pszTargetPort = NULL; } @@ -461,15 +475,16 @@ static rsRetVal resetConfigVariables(uchar __attribute__((unused)) *pp, void __a { freeConfigVars(); /* we now must reset all non-string values */ - iCompressionLevel = 0; - iSourcePortStart = DFLT_SOURCE_PORT_START; - iSourcePortEnd = DFLT_SOURCE_PORT_END; + cs.iCompressionLevel = 0; + cs.iSourcePortStart = DFLT_SOURCE_PORT_START; + cs.iSourcePortEnd = DFLT_SOURCE_PORT_END; return RS_RET_OK; } BEGINmodInit() CODESTARTmodInit +INITLegCnfVars *ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */ CODEmodInit_QueryRegCFSLineHdlr CHKiRet(objUse(glbl, CORE_COMPONENT)); @@ -489,13 +504,13 @@ CODEmodInit_QueryRegCFSLineHdlr ABORT_FINALIZE(RS_RET_ERR_LIBNET_INIT); } - CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspoofdefaulttemplate", 0, eCmdHdlrGetWord, NULL, &pszTplName, NULL)); - CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspoofsourcenametemplate", 0, eCmdHdlrGetWord, NULL, &pszSourceNameTemplate, NULL)); - CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspooftargethost", 0, eCmdHdlrGetWord, NULL, &pszTargetHost, NULL)); - CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspooftargetport", 0, eCmdHdlrGetWord, NULL, &pszTargetPort, NULL)); - CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspoofsourceportstart", 0, eCmdHdlrInt, NULL, &iSourcePortStart, NULL)); - CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspoofsourceportend", 0, eCmdHdlrInt, NULL, &iSourcePortEnd, NULL)); - CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpcompressionlevel", 0, eCmdHdlrInt, NULL, &iCompressionLevel, NULL)); + CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspoofdefaulttemplate", 0, eCmdHdlrGetWord, NULL, &cs.pszTplName, NULL)); + CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspoofsourcenametemplate", 0, eCmdHdlrGetWord, NULL, &cs.pszSourceNameTemplate, NULL)); + CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspooftargethost", 0, eCmdHdlrGetWord, NULL, &cs.pszTargetHost, NULL)); + CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspooftargetport", 0, eCmdHdlrGetWord, NULL, &cs.pszTargetPort, NULL)); + CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspoofsourceportstart", 0, eCmdHdlrInt, NULL, &cs.iSourcePortStart, NULL)); + CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpspoofsourceportend", 0, eCmdHdlrInt, NULL, &cs.iSourcePortEnd, NULL)); + CHKiRet(regCfSysLineHdlr((uchar *)"actionomudpcompressionlevel", 0, eCmdHdlrInt, NULL, &cs.iCompressionLevel, NULL)); CHKiRet(omsdRegCFSLineHdlr((uchar *)"resetconfigvariables", 1, eCmdHdlrCustomHandler, resetConfigVariables, NULL, STD_LOADABLE_MODULE_ID)); ENDmodInit |