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/** omoracle.c
This is an output module feeding directly to an Oracle
database. It uses Oracle Call Interface, a propietary module
provided by Oracle.
Author: Luis Fernando Muñoz Mejías
<Luis.Fernando.Munoz.Mejias@cern.ch>
This file is part of rsyslog.
*/
#include "config.h"
#include "rsyslog.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <oci.h>
#include <errno.h>
#include <stdarg.h>
#include <signal.h>
#include <time.h>
#include <assert.h>
#include "dirty.h"
#include "syslogd-types.h"
#include "srUtils.h"
#include "template.h"
#include "module-template.h"
#include "errmsg.h"
#include "cfsysline.h"
#include "omoracle.h"
MODULE_TYPE_OUTPUT
/** */
DEF_OMOD_STATIC_DATA
DEFobjCurrIf(errmsg)
typedef struct _instanceData {
OCIEnv* environment;
OCISession* session;
OCIError* error;
OCIServer* server;
OCIStmt* statement;
OCISvcCtx* service;
OCIAuthInfo* authinfo;
OCIBind* binding;
} instanceData;
/** Generic function for handling errors from OCI.
It will be called only inside CHECKERR and CHECKENV macros.
Arguments: handle The error or environment handle to check.
htype: OCI_HTYPE_* constant, usually OCI_HTYPE_ERROR or
OCI_HTYPE_ENV
status: status code to check, usually the return value of an OCI
function.
Returns OCI_SUCCESS on success, OCI_ERROR otherwise.
*/
static int oci_errors(void* handle, ub4 htype, sword status)
{
sb4 errcode;
unsigned char buf[MAX_BUFSIZE];
switch (status) {
case OCI_SUCCESS:
return OCI_SUCCESS;
break;
case OCI_SUCCESS_WITH_INFO:
dbgprintf ("OCI SUCCESS - With info\n");
break;
case OCI_NEED_DATA:
dbgprintf ("OCI NEEDS MORE DATA\n");
break;
case OCI_ERROR:
dbgprintf ("OCI GENERAL ERROR\n");
if (handle) {
OCIErrorGet(handle, 1, NULL, &errcode, buf,
sizeof buf, htype);
dbgprintf ("Error message: %s", buf);
} else
dbgprintf ("NULL handle\n"
"Unable to extract further information");
break;
case OCI_INVALID_HANDLE:
dbgprintf ("OCI INVALID HANDLE\n");
break;
case OCI_STILL_EXECUTING:
dbgprintf ("Still executing...\n");
break;
case OCI_CONTINUE:
dbgprintf ("OCI CONTINUE\n");
break;
}
return OCI_ERROR;
}
/* Resource allocation */
BEGINcreateInstance
CODESTARTcreateInstance
ASSERT(pData != NULL);
CHECKENV(pData->environment,
OCIEnvCreate((void*) &(pData->environment), OCI_DEFAULT,
NULL, NULL, NULL, NULL, 0, NULL));
CHECKENV(pData->environment,
OCIHandleAlloc(pData->environment, (void*) &(pData->error),
OCI_HTYPE_ERROR, 0, NULL));
CHECKENV(pData->environment,
OCIHandleAlloc(pData->environment, (void*) &(pData->server),
OCI_HTYPE_SERVER, 0, NULL));
CHECKENV(pData->environment,
OCIHandleAlloc(pData->environment, (void*) &(pData->service),
OCI_HTYPE_SVCCTX, 0, NULL));
CHECKENV(pData->environment,
OCIHandleAlloc(pData->environment, (void*) &(pData->authinfo),
OCI_HTYPE_AUTHINFO, 0, NULL));
finalize_it:
ENDcreateInstance
/** Free any resources allocated by createInstance. */
BEGINfreeInstance
CODESTARTfreeInstance
dbgprintf ("***** OMORACLE ***** Destroying instance\n");
OCIHandleFree(pData->environment, OCI_HTYPE_ENV);
dbgprintf ("***** OMORACLE ***** Destroyed environment\n");
OCIHandleFree(pData->error, OCI_HTYPE_ERROR);
dbgprintf ("***** OMORACLE ***** Destroyed error\n");
OCIHandleFree(pData->server, OCI_HTYPE_SERVER);
dbgprintf ("***** OMORACLE ***** Destroyed server\n");
OCIHandleFree(pData->service, OCI_HTYPE_SVCCTX);
dbgprintf ("***** OMORACLE ***** Destroyed service\n");
OCIHandleFree(pData->authinfo, OCI_HTYPE_AUTHINFO);
dbgprintf ("***** OMORACLE ***** Destroyed authinfo\n");
RETiRet;
ENDfreeInstance
BEGINtryResume
CODESTARTtryResume
dbgprintf ("***** OMORACLE ***** At tryResume\n");
ENDtryResume
static rsRetVal startSession(instanceData* pData, char* connection, char* user,
char * password)
{
DEFiRet;
CHECKERR(pData->error,
OCIAttrSet(pData->authinfo, OCI_HTYPE_AUTHINFO, user,
strlen(user), OCI_ATTR_USERNAME, pData->error));
CHECKERR(pData->error,
OCIAttrSet(pData->authinfo, OCI_HTYPE_AUTHINFO, password,
strlen(password), OCI_ATTR_PASSWORD, pData->error));
CHECKERR(pData->error,
OCISessionGet(pData->environment, pData->error,
&pData->service, pData->authinfo, connection,
strlen(connection), NULL, 0, NULL, NULL, NULL,
OCI_DEFAULT));
finalize_it:
RETiRet;
}
BEGINisCompatibleWithFeature
CODESTARTisCompatibleWithFeature
/* Right now, this module is compatible with nothing. */
dbgprintf ("***** OMORACLE ***** At isCompatibleWithFeature\n");
iRet = RS_RET_INCOMPATIBLE;
ENDisCompatibleWithFeature
BEGINparseSelectorAct
char connection_string[MAXHOSTNAMELEN];
char user[_DB_MAXUNAMELEN];
char pwd[_DB_MAXPWDLEN];
CODESTARTparseSelectorAct
CODE_STD_STRING_REQUESTparseSelectorAct(1);
if (strncmp((char*) p, ":omoracle:", sizeof ":omoracle:" - 1)) {
ABORT_FINALIZE(RS_RET_CONFLINE_UNPROCESSED);
}
p += sizeof ":omoracle:" - 1;
if (*p == '\0' || *p == ',') {
dbgprintf ("Wrong char processing module arguments: %c\n", *p);
ABORT_FINALIZE(RS_RET_INVALID_PARAMS);
}
CHKiRet(getSubString(&p, connection_string, MAXHOSTNAMELEN, ','));
CHKiRet(getSubString(&p, user, _DB_MAXUNAMELEN, ','));
CHKiRet(getSubString(&p, pwd, _DB_MAXPWDLEN, ';'));
p--;
CHKiRet(cflineParseTemplateName(&p, *ppOMSR, 0,
OMSR_RQD_TPL_OPT_SQL, " StdFmt"));
CHKiRet(createInstance(&pData));
CHKiRet(startSession(pData, connection_string, user, pwd));
dbgprintf ("omoracle module got all its resources allocated "
"and connected to the DB\n");
CODE_STD_FINALIZERparseSelectorAct
ENDparseSelectorAct
BEGINdoAction
CODESTARTdoAction
dbgprintf ("***** OMORACLE ***** At doAction\n");
ENDdoAction
BEGINmodExit
CODESTARTmodExit
dbgprintf ("***** OMORACLE ***** At modExit\n");
ENDmodExit
BEGINdbgPrintInstInfo
CODESTARTdbgPrintInstInfo
dbgprintf ("***** OMORACLE ***** At bdgPrintInstInfo\n");
ENDdbgPrintInstInfo
BEGINqueryEtryPt
CODESTARTqueryEtryPt
CODEqueryEtryPt_STD_OMOD_QUERIES
dbgprintf ("***** OMORACLE ***** At queryEtryPt\n");
ENDqueryEtryPt
static rsRetVal
resetConfigVariables(uchar __attribute__((unused)) *pp,
void __attribute__((unused)) *pVal)
{
DEFiRet;
RETiRet;
}
BEGINmodInit()
CODESTARTmodInit
*ipIFVersProvided = CURR_MOD_IF_VERSION;
char dbname[MAX_BUFSIZE];
CODEmodInit_QueryRegCFSLineHdlr
dbgprintf ("***** OMORACLE ***** At modInit\n");
CHKiRet(objUse(errmsg, CORE_COMPONENT));
/* CHKiRet(omsdRegCFSLineHdlr((uchar*)"actionomoracle", */
CHKiRet(omsdRegCFSLineHdlr((uchar*) "resetconfigvariables", 1,
eCmdHdlrCustomHandler, resetConfigVariables,
NULL, STD_LOADABLE_MODULE_ID));
dbgprintf ("***** OMORACLE ***** dbname before = %s\n", dbname);
CHKiRet(omsdRegCFSLineHdlr((uchar*) "actionoracledb", 0, eCmdHdlrInt,
NULL, dbname, STD_LOADABLE_MODULE_ID));
dbgprintf ("***** OMORACLE ***** dbname = %s\n", dbname);
ENDmodInit
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