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/* imdiag.c
* This is a diagnostics module, primarily meant for troubleshooting
* and information about the runtime state of rsyslog. It is implemented
* as an input plugin, because that interface best suits our needs
* and also enables us to inject test messages (something not yet
* implemented).
*
* File begun on 2008-07-25 by RGerhards
*
* Copyright 2008 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 <http://www.gnu.org/licenses/>.
*
* A copy of the GPL can be found in the file "COPYING" in this distribution.
*/
#include "config.h"
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <stdarg.h>
#include <ctype.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/types.h>
#include <sys/socket.h>
#if HAVE_FCNTL_H
#include <fcntl.h>
#endif
#include "rsyslog.h"
//#include "dirty.h"
#include "cfsysline.h"
#include "module-template.h"
#include "net.h"
#include "netstrm.h"
#include "errmsg.h"
MODULE_TYPE_INPUT
/* static data */
DEF_IMOD_STATIC_DATA
DEFobjCurrIf(net)
DEFobjCurrIf(netstrm)
DEFobjCurrIf(errmsg)
/* Module static data */
netstrms_t *pNS; /**< pointer to network stream subsystem */
netstrm_t **ppLstn[10]; /**< our netstream listners */
int iLstnMax = 0; /**< max nbr of listeners currently supported */
/* config settings */
/* add a listen socket to our listen socket array. This is a callback
* invoked from the netstrm class. -- rgerhards, 2008-04-23
*/
static rsRetVal
addTcpLstn(void *pUsr, netstrm_t *pLstn)
{
DEFiRet;
ISOBJ_TYPE_assert(pLstn, netstrm);
if(iLstnMax >= sizeof(ppLstn)/sizeof(netstrm_t))
ABORT_FINALIZE(RS_RET_MAX_LSTN_REACHED);
ppLstn[pThis->iLstnMax] = pLstn;
++iLstnMax;
finalize_it:
RETiRet;
}
/* initialize network stream subsystem */
static rsRetVal
initNetstrm(void)
{
DEFiRet;
/* prepare network stream subsystem */
CHKiRet(netstrms.Construct(&pNS));
CHKiRet(netstrms.SetDrvrMode(pNS, 0)); /* always plain text */
//CHKiRet(netstrms.SetDrvrAuthMode(pThis->pNS, pThis->pszDrvrAuthMode));
//CHKiRet(netstrms.SetDrvrPermPeers(pThis->pNS, pThis->pPermPeers));
// TODO: set driver!
CHKiRet(netstrms.ConstructFinalize(pThis->pNS));
/* set up listeners */
CHKiRet(netstrm.LstnInit(pNS, NULL, addTcpLstn, "127.0.0.1", "44514", 1));
finalize_it:
if(iRet != RS_RET_OK) {
if(pThis->pNS != NULL)
netstrms.Destruct(&pThis->pNS);
}
RETiRet;
}
/* This function is called to gather input. In our case, it is a bit abused
* to drive the listener loop for the diagnostics code.
*/
BEGINrunInput
CODESTARTrunInput
ENDrunInput
/* initialize and return if will run or not */
BEGINwillRun
CODESTARTwillRun
iRet = initNetstrm();
ENDwillRun
BEGINafterRun
CODESTARTafterRun
/* do cleanup here */
/* finally close our listen streams */
for(i = 0 ; i < iLstnMax ; ++i) {
netstrm.Destruct(ppLstn + i);
}
/* destruct netstream subsystem */
netstrms.Destruct(pNS);
ENDafterRun
BEGINmodExit
CODESTARTmodExit
/* release objects we used */
objRelease(net, LM_NET_FILENAME);
objRelease(netstrm, LM_NETSTRMS_FILENAME);
objRelease(errmsg, CORE_COMPONENT);
ENDmodExit
static rsRetVal
resetConfigVariables(uchar __attribute__((unused)) *pp, void __attribute__((unused)) *pVal)
{
return RS_RET_OK;
}
BEGINqueryEtryPt
CODESTARTqueryEtryPt
CODEqueryEtryPt_STD_IMOD_QUERIES
ENDqueryEtryPt
BEGINmodInit()
CODESTARTmodInit
*ipIFVersProvided = CURR_MOD_IF_VERSION; /* we only support the current interface specification */
CODEmodInit_QueryRegCFSLineHdlr
pOurTcpsrv = NULL;
/* request objects we use */
CHKiRet(objUse(net, LM_NET_FILENAME));
CHKiRet(objUse(netstrm, LM_NETSTRMS_FILENAME));
CHKiRet(objUse(errmsg, CORE_COMPONENT));
#if 0
/* register config file handlers */
CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputtcpserverrun", 0, eCmdHdlrGetWord,
addTCPListener, NULL, STD_LOADABLE_MODULE_ID));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputtcpmaxsessions", 0, eCmdHdlrInt,
NULL, &iTCPSessMax, STD_LOADABLE_MODULE_ID));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputtcpserverstreamdrivermode", 0,
eCmdHdlrInt, NULL, &iStrmDrvrMode, STD_LOADABLE_MODULE_ID));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputtcpserverstreamdriverauthmode", 0,
eCmdHdlrGetWord, NULL, &pszStrmDrvrAuthMode, STD_LOADABLE_MODULE_ID));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"inputtcpserverstreamdriverpermittedpeer", 0,
eCmdHdlrGetWord, setPermittedPeer, NULL, STD_LOADABLE_MODULE_ID));
CHKiRet(omsdRegCFSLineHdlr((uchar *)"resetconfigvariables", 1, eCmdHdlrCustomHandler,
resetConfigVariables, NULL, STD_LOADABLE_MODULE_ID));
#endif
ENDmodInit
/* vim:set ai:
*/
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