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rsyslog/plugins/imtcp/imtcp.c

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/* imtcp.c
* This is the implementation of the TCP input module.
*
* File begun on 2007-12-21 by RGerhards (extracted from syslogd.c,
* which at the time of the rsyslog fork was BSD-licensed)
*
* Copyright 2007-2013 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.
*/
/* This note shall explain the calling sequence while we do not have
* have full RainerScript support for (TLS) sender authentication:
*
* imtcp --> tcpsrv --> netstrms (this sequence stored pPermPeers in netstrms class)
* then a callback (doOpenLstnSocks) into imtcp happens, which in turn calls
* into tcpsrv.create_tcp_socket(),
* which calls into netstrm.LstnInit(), which receives a pointer to netstrms obj
* which calls into the driver function LstnInit (again, netstrms obj passed)
* which finally calls back into netstrms obj's get functions to obtain the auth
* parameters and then applies them to the driver object instance
*
* rgerhards, 2008-05-19
*/
#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 "unicode-helper.h"
#include "net.h"
#include "netstrm.h"
#include "errmsg.h"
#include "tcpsrv.h"
#include "ruleset.h"
#include "rainerscript.h"
#include "net.h" /* for permittedPeers, may be removed when this is removed */
MODULE_TYPE_INPUT
MODULE_TYPE_NOKEEP
MODULE_CNFNAME("imtcp")
/* static data */
DEF_IMOD_STATIC_DATA
DEFobjCurrIf(tcpsrv)
DEFobjCurrIf(tcps_sess)
DEFobjCurrIf(net)
DEFobjCurrIf(netstrm)
DEFobjCurrIf(errmsg)
DEFobjCurrIf(ruleset)
static rsRetVal resetConfigVariables(uchar __attribute__((unused)) *pp, void __attribute__((unused)) *pVal);
/* Module static data */
static tcpsrv_t *pOurTcpsrv = NULL; /* our TCP server(listener) TODO: change for multiple instances */
static permittedPeers_t *pPermPeersRoot = NULL;
#define FRAMING_UNSET -1
/* config settings */
static struct configSettings_s {
int iTCPSessMax;
int iTCPLstnMax;
int bSuppOctetFram;
int iStrmDrvrMode;
int bKeepAlive;
int iKeepAliveIntvl;
int iKeepAliveProbes;
int iKeepAliveTime;
int bEmitMsgOnClose;
int iAddtlFrameDelim;
int bDisableLFDelim;
int bUseFlowControl;
uchar *pszStrmDrvrAuthMode;
uchar *pszInputName;
uchar *pszBindRuleset;
} cs;
struct instanceConf_s {
uchar *pszBindPort; /* port to bind to */
uchar *pszBindRuleset; /* name of ruleset to bind to */
ruleset_t *pBindRuleset; /* ruleset to bind listener to (use system default if unspecified) */
uchar *pszInputName; /* value for inputname property, NULL is OK and handled by core engine */
uchar *dfltTZ;
int ratelimitInterval;
int ratelimitBurst;
int bSuppOctetFram;
struct instanceConf_s *next;
};
struct modConfData_s {
rsconf_t *pConf; /* our overall config object */
instanceConf_t *root, *tail;
int iTCPSessMax; /* max number of sessions */
int iTCPLstnMax; /* max number of sessions */
int iStrmDrvrMode; /* mode for stream driver, driver-dependent (0 mostly means plain tcp) */
int iAddtlFrameDelim; /* addtl frame delimiter, e.g. for netscreen, default none */
int bSuppOctetFram;
sbool bDisableLFDelim; /* disable standard LF delimiter */
sbool bUseFlowControl; /* use flow control, what means indicate ourselfs a "light delayable" */
sbool bKeepAlive;
int iKeepAliveIntvl;
int iKeepAliveProbes;
int iKeepAliveTime;
sbool bEmitMsgOnClose; /* emit an informational message on close by remote peer */
uchar *pszStrmDrvrName; /* stream driver to use */
uchar *pszStrmDrvrAuthMode; /* authentication mode to use */
struct cnfarray *permittedPeers;
sbool configSetViaV2Method;
};
static modConfData_t *loadModConf = NULL;/* modConf ptr to use for the current load process */
static modConfData_t *runModConf = NULL;/* modConf ptr to use for the current load process */
/* module-global parameters */
static struct cnfparamdescr modpdescr[] = {
{ "flowcontrol", eCmdHdlrBinary, 0 },
{ "disablelfdelimiter", eCmdHdlrBinary, 0 },
{ "octetcountedframing", eCmdHdlrBinary, 0 },
{ "notifyonconnectionclose", eCmdHdlrBinary, 0 },
{ "addtlframedelimiter", eCmdHdlrNonNegInt, 0 },
{ "maxsessions", eCmdHdlrPositiveInt, 0 },
{ "maxlistners", eCmdHdlrPositiveInt, 0 },
{ "maxlisteners", eCmdHdlrPositiveInt, 0 },
{ "streamdriver.mode", eCmdHdlrPositiveInt, 0 },
{ "streamdriver.authmode", eCmdHdlrString, 0 },
{ "streamdriver.name", eCmdHdlrString, 0 },
{ "permittedpeer", eCmdHdlrArray, 0 },
{ "keepalive", eCmdHdlrBinary, 0 },
{ "keepalive.probes", eCmdHdlrPositiveInt, 0 },
{ "keepalive.time", eCmdHdlrPositiveInt, 0 },
{ "keepalive.interval", eCmdHdlrPositiveInt, 0 }
};
static struct cnfparamblk modpblk =
{ CNFPARAMBLK_VERSION,
sizeof(modpdescr)/sizeof(struct cnfparamdescr),
modpdescr
};
/* input instance parameters */
static struct cnfparamdescr inppdescr[] = {
{ "port", eCmdHdlrString, CNFPARAM_REQUIRED }, /* legacy: InputTCPServerRun */
{ "name", eCmdHdlrString, 0 },
{ "defaulttz", eCmdHdlrString, 0 },
{ "ruleset", eCmdHdlrString, 0 },
{ "supportoctetcountedframing", eCmdHdlrBinary, 0 },
{ "ratelimit.interval", eCmdHdlrInt, 0 },
{ "ratelimit.burst", eCmdHdlrInt, 0 }
};
static struct cnfparamblk inppblk =
{ CNFPARAMBLK_VERSION,
sizeof(inppdescr)/sizeof(struct cnfparamdescr),
inppdescr
};
#include "im-helper.h" /* must be included AFTER the type definitions! */
static int bLegacyCnfModGlobalsPermitted;/* are legacy module-global config parameters permitted? */
/* callbacks */
/* this shall go into a specific ACL module! */
static int
isPermittedHost(struct sockaddr *addr, char *fromHostFQDN, void __attribute__((unused)) *pUsrSrv,
void __attribute__((unused)) *pUsrSess)
{
return net.isAllowedSender2(UCHAR_CONSTANT("TCP"), addr, fromHostFQDN, 1);
}
static rsRetVal
doOpenLstnSocks(tcpsrv_t *pSrv)
{
ISOBJ_TYPE_assert(pSrv, tcpsrv);
return tcpsrv.create_tcp_socket(pSrv);
}
static rsRetVal
doRcvData(tcps_sess_t *pSess, char *buf, size_t lenBuf, ssize_t *piLenRcvd)
{
DEFiRet;
assert(pSess != NULL);
assert(piLenRcvd != NULL);
*piLenRcvd = lenBuf;
CHKiRet(netstrm.Rcv(pSess->pStrm, (uchar*) buf, piLenRcvd));
finalize_it:
RETiRet;
}
static rsRetVal
onRegularClose(tcps_sess_t *pSess)
{
DEFiRet;
assert(pSess != NULL);
/* process any incomplete frames left over */
tcps_sess.PrepareClose(pSess);
/* Session closed */
tcps_sess.Close(pSess);
RETiRet;
}
static rsRetVal
onErrClose(tcps_sess_t *pSess)
{
DEFiRet;
assert(pSess != NULL);
tcps_sess.Close(pSess);
RETiRet;
}
/* ------------------------------ end callbacks ------------------------------ */
/* set permitted peer -- rgerhards, 2008-05-19
*/
static rsRetVal
setPermittedPeer(void __attribute__((unused)) *pVal, uchar *pszID)
{
DEFiRet;
CHKiRet(net.AddPermittedPeer(&pPermPeersRoot, pszID));
free(pszID); /* no longer needed, but we need to free as of interface def */
finalize_it:
RETiRet;
}
/* create input instance, set default paramters, 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->next = NULL;
inst->pszBindRuleset = NULL;
inst->pszInputName = NULL;
inst->dfltTZ = NULL;
inst->bSuppOctetFram = -1; /* unset */
inst->ratelimitInterval = 0;
inst->ratelimitBurst = 10000;
/* node created, let's add to config */
if(loadModConf->tail == NULL) {
loadModConf->tail = loadModConf->root = inst;
} else {
loadModConf->tail->next = inst;
loadModConf->tail = inst;
}
*pinst = inst;
finalize_it:
RETiRet;
}
/* This function is called when a new listener instace shall be added to
* the current config object via the legacy config system. It just shuffles
* all parameters to the listener in-memory instance.
* rgerhards, 2011-05-04
*/
static rsRetVal addInstance(void __attribute__((unused)) *pVal, uchar *pNewVal)
{
instanceConf_t *inst;
DEFiRet;
CHKiRet(createInstance(&inst));
CHKmalloc(inst->pszBindPort = ustrdup((pNewVal == NULL || *pNewVal == '\0')
? (uchar*) "10514" : pNewVal));
if((cs.pszBindRuleset == NULL) || (cs.pszBindRuleset[0] == '\0')) {
inst->pszBindRuleset = NULL;
} else {
CHKmalloc(inst->pszBindRuleset = ustrdup(cs.pszBindRuleset));
}
if((cs.pszInputName == NULL) || (cs.pszInputName[0] == '\0')) {
inst->pszInputName = NULL;
} else {
CHKmalloc(inst->pszInputName = ustrdup(cs.pszInputName));
}
inst->bSuppOctetFram = cs.bSuppOctetFram;
finalize_it:
free(pNewVal);
RETiRet;
}
static rsRetVal
addListner(modConfData_t *modConf, instanceConf_t *inst)
{
DEFiRet;
if(pOurTcpsrv == NULL) {
CHKiRet(tcpsrv.Construct(&pOurTcpsrv));
/* callbacks */
CHKiRet(tcpsrv.SetCBIsPermittedHost(pOurTcpsrv, isPermittedHost));
CHKiRet(tcpsrv.SetCBRcvData(pOurTcpsrv, doRcvData));
CHKiRet(tcpsrv.SetCBOpenLstnSocks(pOurTcpsrv, doOpenLstnSocks));
CHKiRet(tcpsrv.SetCBOnRegularClose(pOurTcpsrv, onRegularClose));
CHKiRet(tcpsrv.SetCBOnErrClose(pOurTcpsrv, onErrClose));
/* params */
CHKiRet(tcpsrv.SetKeepAlive(pOurTcpsrv, modConf->bKeepAlive));
CHKiRet(tcpsrv.SetKeepAliveIntvl(pOurTcpsrv, modConf->iKeepAliveIntvl));
CHKiRet(tcpsrv.SetKeepAliveProbes(pOurTcpsrv, modConf->iKeepAliveProbes));
CHKiRet(tcpsrv.SetKeepAliveTime(pOurTcpsrv, modConf->iKeepAliveTime));
CHKiRet(tcpsrv.SetSessMax(pOurTcpsrv, modConf->iTCPSessMax));
CHKiRet(tcpsrv.SetLstnMax(pOurTcpsrv, modConf->iTCPLstnMax));
CHKiRet(tcpsrv.SetDrvrMode(pOurTcpsrv, modConf->iStrmDrvrMode));
CHKiRet(tcpsrv.SetUseFlowControl(pOurTcpsrv, modConf->bUseFlowControl));
CHKiRet(tcpsrv.SetAddtlFrameDelim(pOurTcpsrv, modConf->iAddtlFrameDelim));
CHKiRet(tcpsrv.SetbDisableLFDelim(pOurTcpsrv, modConf->bDisableLFDelim));
CHKiRet(tcpsrv.SetNotificationOnRemoteClose(pOurTcpsrv, modConf->bEmitMsgOnClose));
/* now set optional params, but only if they were actually configured */
if(modConf->pszStrmDrvrName != NULL) {
CHKiRet(tcpsrv.SetDrvrName(pOurTcpsrv, modConf->pszStrmDrvrName));
}
if(modConf->pszStrmDrvrAuthMode != NULL) {
CHKiRet(tcpsrv.SetDrvrAuthMode(pOurTcpsrv, modConf->pszStrmDrvrAuthMode));
}
if(pPermPeersRoot != NULL) {
CHKiRet(tcpsrv.SetDrvrPermPeers(pOurTcpsrv, pPermPeersRoot));
}
}
/* initialized, now add socket and listener params */
DBGPRINTF("imtcp: trying to add port *:%s\n", inst->pszBindPort);
CHKiRet(tcpsrv.SetRuleset(pOurTcpsrv, inst->pBindRuleset));
CHKiRet(tcpsrv.SetInputName(pOurTcpsrv, inst->pszInputName == NULL ?
UCHAR_CONSTANT("imtcp") : inst->pszInputName));
CHKiRet(tcpsrv.SetOrigin(pOurTcpsrv, (uchar*)"imtcp"));
CHKiRet(tcpsrv.SetDfltTZ(pOurTcpsrv, (inst->dfltTZ == NULL) ? (uchar*)"" : inst->dfltTZ));
CHKiRet(tcpsrv.SetLinuxLikeRatelimiters(pOurTcpsrv, inst->ratelimitInterval, inst->ratelimitBurst));
tcpsrv.configureTCPListen(pOurTcpsrv, inst->pszBindPort, inst->bSuppOctetFram);
finalize_it:
if(iRet != RS_RET_OK) {
errmsg.LogError(0, NO_ERRCODE, "imtcp: error %d trying to add listener", iRet);
}
RETiRet;
}
BEGINnewInpInst
struct cnfparamvals *pvals;
instanceConf_t *inst;
int i;
CODESTARTnewInpInst
DBGPRINTF("newInpInst (imtcp)\n");
pvals = nvlstGetParams(lst, &inppblk, NULL);
if(pvals == NULL) {
errmsg.LogError(0, RS_RET_MISSING_CNFPARAMS,
"imtcp: required parameter are missing\n");
ABORT_FINALIZE(RS_RET_MISSING_CNFPARAMS);
}
if(Debug) {
dbgprintf("input param blk in imtcp:\n");
cnfparamsPrint(&inppblk, pvals);
}
CHKiRet(createInstance(&inst));
for(i = 0 ; i < inppblk.nParams ; ++i) {
if(!pvals[i].bUsed)
continue;
if(!strcmp(inppblk.descr[i].name, "port")) {
inst->pszBindPort = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if(!strcmp(inppblk.descr[i].name, "name")) {
inst->pszInputName = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if(!strcmp(inppblk.descr[i].name, "defaulttz")) {
inst->dfltTZ = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if(!strcmp(inppblk.descr[i].name, "ruleset")) {
inst->pszBindRuleset = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if(!strcmp(inppblk.descr[i].name, "supportoctetcountedframing")) {
inst->bSuppOctetFram = (int) pvals[i].val.d.n;
} else if(!strcmp(inppblk.descr[i].name, "ratelimit.burst")) {
inst->ratelimitBurst = (int) pvals[i].val.d.n;
} else if(!strcmp(inppblk.descr[i].name, "ratelimit.interval")) {
inst->ratelimitInterval = (int) pvals[i].val.d.n;
} else {
dbgprintf("imtcp: program error, non-handled "
"param '%s'\n", inppblk.descr[i].name);
}
}
finalize_it:
CODE_STD_FINALIZERnewInpInst
cnfparamvalsDestruct(pvals, &inppblk);
ENDnewInpInst
BEGINbeginCnfLoad
CODESTARTbeginCnfLoad
loadModConf = pModConf;
pModConf->pConf = pConf;
/* init our settings */
loadModConf->iTCPSessMax = 200;
loadModConf->iTCPLstnMax = 20;
loadModConf->bSuppOctetFram = 1;
loadModConf->iStrmDrvrMode = 0;
loadModConf->bUseFlowControl = 1;
loadModConf->bKeepAlive = 0;
loadModConf->iKeepAliveIntvl = 0;
loadModConf->iKeepAliveProbes = 0;
loadModConf->iKeepAliveTime = 0;
loadModConf->bEmitMsgOnClose = 0;
loadModConf->iAddtlFrameDelim = TCPSRV_NO_ADDTL_DELIMITER;
loadModConf->bDisableLFDelim = 0;
loadModConf->pszStrmDrvrName = NULL;
loadModConf->pszStrmDrvrAuthMode = NULL;
loadModConf->permittedPeers = NULL;
loadModConf->configSetViaV2Method = 0;
bLegacyCnfModGlobalsPermitted = 1;
/* init legacy config variables */
cs.pszStrmDrvrAuthMode = NULL;
resetConfigVariables(NULL, NULL); /* dummy parameters just to fulfill interface def */
ENDbeginCnfLoad
BEGINsetModCnf
struct cnfparamvals *pvals = NULL;
int i;
CODESTARTsetModCnf
pvals = nvlstGetParams(lst, &modpblk, NULL);
if(pvals == NULL) {
errmsg.LogError(0, RS_RET_MISSING_CNFPARAMS, "imtcp: error processing module "
"config parameters [module(...)]");
ABORT_FINALIZE(RS_RET_MISSING_CNFPARAMS);
}
if(Debug) {
dbgprintf("module (global) param blk for imtcp:\n");
cnfparamsPrint(&modpblk, pvals);
}
for(i = 0 ; i < modpblk.nParams ; ++i) {
if(!pvals[i].bUsed)
continue;
if(!strcmp(modpblk.descr[i].name, "flowcontrol")) {
loadModConf->bUseFlowControl = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "disablelfdelimiter")) {
loadModConf->bDisableLFDelim = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "octetcountedframing")) {
loadModConf->bSuppOctetFram = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "notifyonconnectionclose")) {
loadModConf->bEmitMsgOnClose = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "addtlframedelimiter")) {
loadModConf->iAddtlFrameDelim = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "maxsessions")) {
loadModConf->iTCPSessMax = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "maxlisteners") ||
!strcmp(modpblk.descr[i].name, "maxlistners")) { /* keep old name for a while */
loadModConf->iTCPLstnMax = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "keepalive")) {
loadModConf->bKeepAlive = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "keepalive.probes")) {
loadModConf->iKeepAliveProbes = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "keepalive.time")) {
loadModConf->iKeepAliveTime = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "keepalive.interval")) {
loadModConf->iKeepAliveIntvl = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "streamdriver.mode")) {
loadModConf->iStrmDrvrMode = (int) pvals[i].val.d.n;
} else if(!strcmp(modpblk.descr[i].name, "streamdriver.authmode")) {
loadModConf->pszStrmDrvrAuthMode = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if(!strcmp(modpblk.descr[i].name, "streamdriver.name")) {
loadModConf->pszStrmDrvrName = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL);
} else if(!strcmp(modpblk.descr[i].name, "permittedpeer")) {
loadModConf->permittedPeers = cnfarrayDup(pvals[i].val.d.ar);
} else {
dbgprintf("imtcp: program error, non-handled "
"param '%s' in beginCnfLoad\n", modpblk.descr[i].name);
}
}
/* remove all of our legacy handlers, as they can not used in addition
* the the new-style config method.
*/
bLegacyCnfModGlobalsPermitted = 0;
loadModConf->configSetViaV2Method = 1;
finalize_it:
if(pvals != NULL)
cnfparamvalsDestruct(pvals, &modpblk);
ENDsetModCnf
BEGINendCnfLoad
CODESTARTendCnfLoad
if(!loadModConf->configSetViaV2Method) {
/* persist module-specific settings from legacy config system */
pModConf->iTCPSessMax = cs.iTCPSessMax;
pModConf->iTCPLstnMax = cs.iTCPLstnMax;
pModConf->iStrmDrvrMode = cs.iStrmDrvrMode;
pModConf->bEmitMsgOnClose = cs.bEmitMsgOnClose;
pModConf->bSuppOctetFram = cs.bSuppOctetFram;
pModConf->iAddtlFrameDelim = cs.iAddtlFrameDelim;
pModConf->bDisableLFDelim = cs.bDisableLFDelim;
pModConf->bUseFlowControl = cs.bUseFlowControl;
pModConf->bKeepAlive = cs.bKeepAlive;
pModConf->iKeepAliveProbes = cs.iKeepAliveProbes;
pModConf->iKeepAliveIntvl = cs.iKeepAliveIntvl;
pModConf->iKeepAliveTime = cs.iKeepAliveTime;
if((cs.pszStrmDrvrAuthMode == NULL) || (cs.pszStrmDrvrAuthMode[0] == '\0')) {
loadModConf->pszStrmDrvrAuthMode = NULL;
} else {
loadModConf->pszStrmDrvrAuthMode = cs.pszStrmDrvrAuthMode;
cs.pszStrmDrvrAuthMode = NULL;
}
}
free(cs.pszStrmDrvrAuthMode);
cs.pszStrmDrvrAuthMode = NULL;
loadModConf = NULL; /* done loading */
ENDendCnfLoad
/* function to generate error message if framework does not find requested ruleset */
static inline void
std_checkRuleset_genErrMsg(__attribute__((unused)) modConfData_t *modConf, instanceConf_t *inst)
{
errmsg.LogError(0, NO_ERRCODE, "imtcp: ruleset '%s' for port %s not found - "
"using default ruleset instead", inst->pszBindRuleset,
inst->pszBindPort);
}
BEGINcheckCnf
instanceConf_t *inst;
CODESTARTcheckCnf
for(inst = pModConf->root ; inst != NULL ; inst = inst->next) {
std_checkRuleset(pModConf, inst);
if(inst->bSuppOctetFram == FRAMING_UNSET)
inst->bSuppOctetFram = pModConf->bSuppOctetFram;
}
if(pModConf->root == NULL) {
errmsg.LogError(0, RS_RET_NO_LISTNERS , "imtcp: module loaded, but "
"no listeners defined - no input will be gathered");
iRet = RS_RET_NO_LISTNERS;
}
ENDcheckCnf
BEGINactivateCnfPrePrivDrop
instanceConf_t *inst;
int i;
CODESTARTactivateCnfPrePrivDrop
runModConf = pModConf;
if(runModConf->permittedPeers != NULL) {
for(i = 0 ; i < runModConf->permittedPeers->nmemb ; ++i) {
setPermittedPeer(NULL, (uchar*)
es_str2cstr(runModConf->permittedPeers->arr[i], NULL));
}
}
for(inst = runModConf->root ; inst != NULL ; inst = inst->next) {
addListner(pModConf, inst);
}
if(pOurTcpsrv == NULL)
ABORT_FINALIZE(RS_RET_NO_RUN);
CHKiRet(tcpsrv.ConstructFinalize(pOurTcpsrv));
finalize_it:
ENDactivateCnfPrePrivDrop
BEGINactivateCnf
CODESTARTactivateCnf
/* sorry, nothing to do here... */
ENDactivateCnf
BEGINfreeCnf
instanceConf_t *inst, *del;
CODESTARTfreeCnf
free(pModConf->pszStrmDrvrName);
free(pModConf->pszStrmDrvrAuthMode);
if(pModConf->permittedPeers != NULL) {
cnfarrayContentDestruct(pModConf->permittedPeers);
free(pModConf->permittedPeers);
}
for(inst = pModConf->root ; inst != NULL ; ) {
free(inst->pszBindPort);
free(inst->pszInputName);
free(inst->dfltTZ);
del = inst;
inst = inst->next;
free(del);
}
ENDfreeCnf
/* This function is called to gather input.
*/
BEGINrunInput
CODESTARTrunInput
iRet = tcpsrv.Run(pOurTcpsrv);
ENDrunInput
/* initialize and return if will run or not */
BEGINwillRun
CODESTARTwillRun
net.PrintAllowedSenders(2); /* TCP */
ENDwillRun
BEGINafterRun
CODESTARTafterRun
if(pOurTcpsrv != NULL)
iRet = tcpsrv.Destruct(&pOurTcpsrv);
net.clearAllowedSenders(UCHAR_CONSTANT("TCP"));
ENDafterRun
BEGINisCompatibleWithFeature
CODESTARTisCompatibleWithFeature
if(eFeat == sFEATURENonCancelInputTermination)
iRet = RS_RET_OK;
ENDisCompatibleWithFeature
BEGINmodExit
CODESTARTmodExit
if(pPermPeersRoot != NULL) {
net.DestructPermittedPeers(&pPermPeersRoot);
}
/* release objects we used */
objRelease(net, LM_NET_FILENAME);
objRelease(netstrm, LM_NETSTRMS_FILENAME);
objRelease(tcps_sess, LM_TCPSRV_FILENAME);
objRelease(tcpsrv, LM_TCPSRV_FILENAME);
objRelease(errmsg, CORE_COMPONENT);
objRelease(ruleset, CORE_COMPONENT);
ENDmodExit
static rsRetVal
resetConfigVariables(uchar __attribute__((unused)) *pp, void __attribute__((unused)) *pVal)
{
cs.iTCPSessMax = 200;
cs.iTCPLstnMax = 20;
cs.bSuppOctetFram = 1;
cs.iStrmDrvrMode = 0;
cs.bUseFlowControl = 1;
cs.bKeepAlive = 0;
cs.iKeepAliveProbes = 0;
cs.iKeepAliveTime = 0;
cs.iKeepAliveIntvl = 0;
cs.bEmitMsgOnClose = 0;
cs.iAddtlFrameDelim = TCPSRV_NO_ADDTL_DELIMITER;
cs.bDisableLFDelim = 0;
free(cs.pszInputName);
cs.pszInputName = NULL;
free(cs.pszStrmDrvrAuthMode);
cs.pszStrmDrvrAuthMode = NULL;
return RS_RET_OK;
}
BEGINqueryEtryPt
CODESTARTqueryEtryPt
CODEqueryEtryPt_STD_IMOD_QUERIES
CODEqueryEtryPt_STD_CONF2_QUERIES
CODEqueryEtryPt_STD_CONF2_setModCnf_QUERIES
CODEqueryEtryPt_STD_CONF2_PREPRIVDROP_QUERIES
CODEqueryEtryPt_STD_CONF2_IMOD_QUERIES
CODEqueryEtryPt_IsCompatibleWithFeature_IF_OMOD_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(tcps_sess, LM_TCPSRV_FILENAME));
CHKiRet(objUse(tcpsrv, LM_TCPSRV_FILENAME));
CHKiRet(objUse(errmsg, CORE_COMPONENT));
CHKiRet(objUse(ruleset, CORE_COMPONENT));
/* register config file handlers */
CHKiRet(omsdRegCFSLineHdlr(UCHAR_CONSTANT("inputtcpserverrun"), 0, eCmdHdlrGetWord,
addInstance, NULL, STD_LOADABLE_MODULE_ID));
CHKiRet(omsdRegCFSLineHdlr(UCHAR_CONSTANT("inputtcpserverinputname"), 0, eCmdHdlrGetWord,
NULL, &cs.pszInputName, STD_LOADABLE_MODULE_ID));
CHKiRet(omsdRegCFSLineHdlr(UCHAR_CONSTANT("inputtcpserverbindruleset"), 0, eCmdHdlrGetWord,
NULL, &cs.pszBindRuleset, STD_LOADABLE_MODULE_ID));
/* module-global config params - will be disabled in configs that are loaded
* via module(...).
*/
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverstreamdriverpermittedpeer"), 0, eCmdHdlrGetWord,
setPermittedPeer, NULL, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverstreamdriverauthmode"), 0, eCmdHdlrGetWord,
NULL, &cs.pszStrmDrvrAuthMode, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverkeepalive"), 0, eCmdHdlrBinary,
NULL, &cs.bKeepAlive, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverkeepalive_probes"), 0, eCmdHdlrInt,
NULL, &cs.iKeepAliveProbes, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverkeepalive_intvl"), 0, eCmdHdlrInt,
NULL, &cs.iKeepAliveTime, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverkeepalive_time"), 0, eCmdHdlrInt,
NULL, &cs.iKeepAliveIntvl, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpflowcontrol"), 0, eCmdHdlrBinary,
NULL, &cs.bUseFlowControl, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverdisablelfdelimiter"), 0, eCmdHdlrBinary,
NULL, &cs.bDisableLFDelim, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserveraddtlframedelimiter"), 0, eCmdHdlrInt,
NULL, &cs.iAddtlFrameDelim, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserversupportoctetcountedframing"), 0, eCmdHdlrBinary,
NULL, &cs.bSuppOctetFram, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpmaxsessions"), 0, eCmdHdlrInt,
NULL, &cs.iTCPSessMax, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpmaxlisteners"), 0, eCmdHdlrInt,
NULL, &cs.iTCPLstnMax, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpservernotifyonconnectionclose"), 0, eCmdHdlrBinary,
NULL, &cs.bEmitMsgOnClose, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverstreamdrivermode"), 0, eCmdHdlrInt,
NULL, &cs.iStrmDrvrMode, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted));
CHKiRet(omsdRegCFSLineHdlr(UCHAR_CONSTANT("resetconfigvariables"), 1, eCmdHdlrCustomHandler,
resetConfigVariables, NULL, STD_LOADABLE_MODULE_ID));
ENDmodInit
/* vim:set ai:
*/
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