diff options
Diffstat (limited to '')
| -rw-r--r-- | plugins/imtcp/Makefile.am | 11 | ||||
| -rw-r--r-- | plugins/imtcp/Makefile.in | 799 | ||||
| -rw-r--r-- | plugins/imtcp/imtcp.c | 1192 |
3 files changed, 2002 insertions, 0 deletions
diff --git a/plugins/imtcp/Makefile.am b/plugins/imtcp/Makefile.am new file mode 100644 index 0000000..f2ab10f --- /dev/null +++ b/plugins/imtcp/Makefile.am @@ -0,0 +1,11 @@ +pkglib_LTLIBRARIES = imtcp.la + +imtcp_la_SOURCES = imtcp.c +imtcp_la_CPPFLAGS = -I$(top_srcdir) $(PTHREADS_CFLAGS) $(RSRT_CFLAGS) +imtcp_la_LDFLAGS = -module -avoid-version +imtcp_la_LIBADD = + +if ENABLE_LIBLOGGING_STDLOG +imtcp_la_CPPFLAGS += $(LIBLOGGING_STDLOG_CFLAGS) +imtcp_la_LDFLAGS += $(LIBLOGGING_STDLOG_LIBS) +endif diff --git a/plugins/imtcp/Makefile.in b/plugins/imtcp/Makefile.in new file mode 100644 index 0000000..b3aaedc --- /dev/null +++ b/plugins/imtcp/Makefile.in @@ -0,0 +1,799 @@ +# Makefile.in generated by automake 1.16.1 from Makefile.am. +# @configure_input@ + +# Copyright (C) 1994-2018 Free Software Foundation, Inc. + +# This Makefile.in is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY, to the extent permitted by law; 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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 <signal.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" +#include "parserif.h" + +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(ruleset) + +static rsRetVal resetConfigVariables(uchar __attribute__((unused)) *pp, void __attribute__((unused)) *pVal); + +/* Module static data */ +typedef struct tcpsrv_etry_s { + tcpsrv_t *tcpsrv; + pthread_t tid; /* the worker's thread ID */ + struct tcpsrv_etry_s *next; +} tcpsrv_etry_t; +static tcpsrv_etry_t *tcpsrv_root = NULL; +static int n_tcpsrv = 0; + +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 bEmitMsgOnOpen; + int iAddtlFrameDelim; + int maxFrameSize; + int bDisableLFDelim; + int discardTruncatedMsg; + int bUseFlowControl; + int bPreserveCase; + uchar *gnutlsPriorityString; + uchar *pszStrmDrvrAuthMode; + uchar *pszStrmDrvrPermitExpiredCerts; + uchar *pszInputName; + uchar *pszBindRuleset; + uchar *lstnIP; /* which IP we should listen on? */ + uchar *lstnPortFile; +} cs; + +struct instanceConf_s { + int iTCPSessMax; + int iTCPLstnMax; + tcpLstnParams_t *cnf_params; /**< listener config parameters */ + 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; + sbool bSPFramingFix; + unsigned int ratelimitInterval; + unsigned int ratelimitBurst; + int iAddtlFrameDelim; /* addtl frame delimiter, e.g. for netscreen, default none */ + int maxFrameSize; + int bUseFlowControl; + int bDisableLFDelim; + int discardTruncatedMsg; + int bEmitMsgOnClose; + int bEmitMsgOnOpen; + int bPreserveCase; + uchar *pszStrmDrvrName; /* stream driver to use */ + int iStrmDrvrMode; + uchar *pszStrmDrvrAuthMode; + uchar *pszStrmDrvrPermitExpiredCerts; + uchar *pszStrmDrvrCAFile; + uchar *pszStrmDrvrCRLFile; + uchar *pszStrmDrvrKeyFile; + uchar *pszStrmDrvrCertFile; + permittedPeers_t *pPermPeersRoot; + uchar *gnutlsPriorityString; + int iStrmDrvrExtendedCertCheck; + int iStrmDrvrSANPreference; + int iStrmTlsVerifyDepth; + int bKeepAlive; + int iKeepAliveIntvl; + int iKeepAliveProbes; + int iKeepAliveTime; + 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 iStrmDrvrExtendedCertCheck; /* verify also purpose OID in certificate extended field */ + int iStrmDrvrSANPreference; /* ignore CN when any SAN set */ + int iStrmTlsVerifyDepth; /**< Verify Depth for certificate chains */ + int iAddtlFrameDelim; /* addtl frame delimiter, e.g. for netscreen, default none */ + int maxFrameSize; + int bSuppOctetFram; + sbool bDisableLFDelim; /* disable standard LF delimiter */ + sbool discardTruncatedMsg; + 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 */ + sbool bEmitMsgOnOpen; /* emit an informational message on close by remote peer */ + uchar *gnutlsPriorityString; + uchar *pszStrmDrvrName; /* stream driver to use */ + uchar *pszStrmDrvrAuthMode; /* authentication mode to use */ + uchar *pszStrmDrvrPermitExpiredCerts; /* control how to handly expired certificates */ + uchar *pszStrmDrvrCAFile; + uchar *pszStrmDrvrCRLFile; + uchar *pszStrmDrvrKeyFile; + uchar *pszStrmDrvrCertFile; + permittedPeers_t *pPermPeersRoot; + sbool configSetViaV2Method; + sbool bPreserveCase; /* preserve case of fromhost; true by default */ +}; + +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 }, + { "discardtruncatedmsg", eCmdHdlrBinary, 0 }, + { "octetcountedframing", eCmdHdlrBinary, 0 }, + { "notifyonconnectionclose", eCmdHdlrBinary, 0 }, + { "notifyonconnectionopen", eCmdHdlrBinary, 0 }, + { "addtlframedelimiter", eCmdHdlrNonNegInt, 0 }, + { "maxframesize", eCmdHdlrInt, 0 }, + { "maxsessions", eCmdHdlrPositiveInt, 0 }, + { "maxlistners", eCmdHdlrPositiveInt, 0 }, + { "maxlisteners", eCmdHdlrPositiveInt, 0 }, + { "streamdriver.mode", eCmdHdlrNonNegInt, 0 }, + { "streamdriver.authmode", eCmdHdlrString, 0 }, + { "streamdriver.permitexpiredcerts", eCmdHdlrString, 0 }, + { "streamdriver.name", eCmdHdlrString, 0 }, + { "streamdriver.CheckExtendedKeyPurpose", eCmdHdlrBinary, 0 }, + { "streamdriver.PrioritizeSAN", eCmdHdlrBinary, 0 }, + { "streamdriver.TlsVerifyDepth", eCmdHdlrPositiveInt, 0 }, + { "permittedpeer", eCmdHdlrArray, 0 }, + { "keepalive", eCmdHdlrBinary, 0 }, + { "keepalive.probes", eCmdHdlrNonNegInt, 0 }, + { "keepalive.time", eCmdHdlrNonNegInt, 0 }, + { "keepalive.interval", eCmdHdlrNonNegInt, 0 }, + { "gnutlsprioritystring", eCmdHdlrString, 0 }, + { "preservecase", eCmdHdlrBinary, 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 */ + { "maxsessions", eCmdHdlrPositiveInt, 0 }, + { "maxlisteners", eCmdHdlrPositiveInt, 0 }, + { "flowcontrol", eCmdHdlrBinary, 0 }, + { "disablelfdelimiter", eCmdHdlrBinary, 0 }, + { "discardtruncatedmsg", eCmdHdlrBinary, 0 }, + { "notifyonconnectionclose", eCmdHdlrBinary, 0 }, + { "notifyonconnectionopen", eCmdHdlrBinary, 0 }, + { "addtlframedelimiter", eCmdHdlrNonNegInt, 0 }, + { "maxframesize", eCmdHdlrInt, 0 }, + { "preservecase", eCmdHdlrBinary, 0 }, + { "listenportfilename", eCmdHdlrString, 0 }, + { "address", eCmdHdlrString, 0 }, + { "name", eCmdHdlrString, 0 }, + { "defaulttz", eCmdHdlrString, 0 }, + { "ruleset", eCmdHdlrString, 0 }, + { "streamdriver.mode", eCmdHdlrNonNegInt, 0 }, + { "streamdriver.authmode", eCmdHdlrString, 0 }, + { "streamdriver.permitexpiredcerts", eCmdHdlrString, 0 }, + { "streamdriver.name", eCmdHdlrString, 0 }, + { "streamdriver.CheckExtendedKeyPurpose", eCmdHdlrBinary, 0 }, + { "streamdriver.PrioritizeSAN", eCmdHdlrBinary, 0 }, + { "streamdriver.TlsVerifyDepth", eCmdHdlrPositiveInt, 0 }, + { "streamdriver.cafile", eCmdHdlrString, 0 }, + { "streamdriver.keyfile", eCmdHdlrString, 0 }, + { "streamdriver.certfile", eCmdHdlrString, 0 }, + { "permittedpeer", eCmdHdlrArray, 0 }, + { "gnutlsprioritystring", eCmdHdlrString, 0 }, + { "keepalive", eCmdHdlrBinary, 0 }, + { "keepalive.probes", eCmdHdlrNonNegInt, 0 }, + { "keepalive.time", eCmdHdlrNonNegInt, 0 }, + { "keepalive.interval", eCmdHdlrNonNegInt, 0 }, + { "supportoctetcountedframing", eCmdHdlrBinary, 0 }, + { "ratelimit.interval", eCmdHdlrInt, 0 }, + { "framingfix.cisco.asa", eCmdHdlrBinary, 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); + dbgprintf("in imtcp doOpenLstnSocks\n"); + return tcpsrv.create_tcp_socket(pSrv); +} + + +static rsRetVal +doRcvData(tcps_sess_t *pSess, char *buf, size_t lenBuf, ssize_t *piLenRcvd, int *const oserr) +{ + assert(pSess != NULL); + assert(piLenRcvd != NULL); + *piLenRcvd = lenBuf; + return netstrm.Rcv(pSess->pStrm, (uchar*) buf, piLenRcvd, oserr); +} + +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 parameters, and + * add it to the list of instances. + */ +static rsRetVal +createInstance(instanceConf_t **pinst) +{ + instanceConf_t *inst = NULL; + + DEFiRet; + CHKmalloc(inst = (instanceConf_t*) calloc(1, sizeof(instanceConf_t))); + CHKmalloc(inst->cnf_params = (tcpLstnParams_t*) calloc(1, sizeof(tcpLstnParams_t))); + inst->next = NULL; + inst->pszBindRuleset = NULL; + inst->pszInputName = NULL; + inst->dfltTZ = NULL; + inst->cnf_params->bSuppOctetFram = -1; /* unset */ + inst->bSPFramingFix = 0; + inst->ratelimitInterval = 0; + inst->ratelimitBurst = 10000; + + inst->pszStrmDrvrName = NULL; + inst->pszStrmDrvrAuthMode = NULL; + inst->pszStrmDrvrPermitExpiredCerts = NULL; + inst->pszStrmDrvrCAFile = NULL; + inst->pszStrmDrvrCRLFile = NULL; + inst->pszStrmDrvrKeyFile = NULL; + inst->pszStrmDrvrCertFile = NULL; + inst->pPermPeersRoot = NULL; + inst->gnutlsPriorityString = NULL; + inst->iStrmDrvrMode = loadModConf->iStrmDrvrMode; + inst->iStrmDrvrExtendedCertCheck = loadModConf->iStrmDrvrExtendedCertCheck; + inst->iStrmDrvrSANPreference = loadModConf->iStrmDrvrSANPreference; + inst->iStrmTlsVerifyDepth = loadModConf->iStrmTlsVerifyDepth; + inst->bKeepAlive = loadModConf->bKeepAlive; + inst->iKeepAliveIntvl = loadModConf->iKeepAliveIntvl; + inst->iKeepAliveProbes = loadModConf->iKeepAliveProbes; + inst->iKeepAliveTime = loadModConf->iKeepAliveTime; + inst->iAddtlFrameDelim = loadModConf->iAddtlFrameDelim; + inst->maxFrameSize = loadModConf->maxFrameSize; + inst->bUseFlowControl = loadModConf->bUseFlowControl; + inst->bDisableLFDelim = loadModConf->bDisableLFDelim; + inst->discardTruncatedMsg = loadModConf->discardTruncatedMsg; + inst->bEmitMsgOnClose = loadModConf->bEmitMsgOnClose; + inst->bEmitMsgOnOpen = loadModConf->bEmitMsgOnOpen; + inst->bPreserveCase = loadModConf->bPreserveCase; + inst->iTCPLstnMax = loadModConf->iTCPLstnMax; + inst->iTCPSessMax = loadModConf->iTCPSessMax; + + inst->cnf_params->pszLstnPortFileName = NULL; + + /* 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: + if(iRet != RS_RET_OK) { + free(inst->cnf_params); + free(inst); + } + 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->cnf_params->pszPort = 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.lstnIP == NULL) || (cs.lstnIP[0] == '\0')) { + inst->cnf_params->pszAddr = NULL; + } else { + CHKmalloc(inst->cnf_params->pszAddr = ustrdup(cs.lstnIP)); + } + if((cs.lstnPortFile == NULL) || (cs.lstnPortFile[0] == '\0')) { + inst->cnf_params->pszLstnPortFileName = NULL; + } else { + CHKmalloc(inst->cnf_params->pszLstnPortFileName = ustrdup(cs.lstnPortFile)); + } + + if((cs.pszInputName == NULL) || (cs.pszInputName[0] == '\0')) { + inst->pszInputName = NULL; + } else { + CHKmalloc(inst->pszInputName = ustrdup(cs.pszInputName)); + } + inst->cnf_params->bSuppOctetFram = cs.bSuppOctetFram; + inst->iStrmDrvrMode = cs.iStrmDrvrMode; + inst->bKeepAlive = cs.bKeepAlive ; + inst->bUseFlowControl = cs.bUseFlowControl; + inst->bDisableLFDelim = cs.bDisableLFDelim; + inst->bEmitMsgOnClose = cs.bEmitMsgOnClose; + inst->bPreserveCase = cs.bPreserveCase; + inst->iKeepAliveProbes = cs.iKeepAliveProbes; + inst->iKeepAliveIntvl = cs.iKeepAliveIntvl; + inst->iKeepAliveTime = cs.iKeepAliveTime; + inst->iKeepAliveTime = cs.iKeepAliveTime; + inst->iAddtlFrameDelim = cs.iAddtlFrameDelim; + inst->iTCPLstnMax = cs.iTCPLstnMax; + inst->iTCPSessMax = cs.iTCPSessMax; + inst->iStrmDrvrMode = cs.iStrmDrvrMode; + +finalize_it: + free(pNewVal); + RETiRet; +} + + +static rsRetVal +addListner(modConfData_t *modConf, instanceConf_t *inst) +{ + DEFiRet; + uchar *psz; /* work variable */ + permittedPeers_t *peers; + + tcpsrv_t *pOurTcpsrv; + 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, inst->bKeepAlive)); + CHKiRet(tcpsrv.SetKeepAliveIntvl(pOurTcpsrv, inst->iKeepAliveIntvl)); + CHKiRet(tcpsrv.SetKeepAliveProbes(pOurTcpsrv, inst->iKeepAliveProbes)); + CHKiRet(tcpsrv.SetKeepAliveTime(pOurTcpsrv, inst->iKeepAliveTime)); + CHKiRet(tcpsrv.SetSessMax(pOurTcpsrv, inst->iTCPSessMax)); + CHKiRet(tcpsrv.SetLstnMax(pOurTcpsrv, inst->iTCPLstnMax)); + CHKiRet(tcpsrv.SetDrvrMode(pOurTcpsrv, inst->iStrmDrvrMode)); + CHKiRet(tcpsrv.SetDrvrCheckExtendedKeyUsage(pOurTcpsrv, inst->iStrmDrvrExtendedCertCheck)); + CHKiRet(tcpsrv.SetDrvrPrioritizeSAN(pOurTcpsrv, inst->iStrmDrvrSANPreference)); + CHKiRet(tcpsrv.SetDrvrTlsVerifyDepth(pOurTcpsrv, inst->iStrmTlsVerifyDepth)); + CHKiRet(tcpsrv.SetUseFlowControl(pOurTcpsrv, inst->bUseFlowControl)); + CHKiRet(tcpsrv.SetAddtlFrameDelim(pOurTcpsrv, inst->iAddtlFrameDelim)); + CHKiRet(tcpsrv.SetMaxFrameSize(pOurTcpsrv, inst->maxFrameSize)); + CHKiRet(tcpsrv.SetbDisableLFDelim(pOurTcpsrv, inst->bDisableLFDelim)); + CHKiRet(tcpsrv.SetDiscardTruncatedMsg(pOurTcpsrv, inst->discardTruncatedMsg)); + CHKiRet(tcpsrv.SetNotificationOnRemoteClose(pOurTcpsrv, inst->bEmitMsgOnClose)); + CHKiRet(tcpsrv.SetNotificationOnRemoteOpen(pOurTcpsrv, inst->bEmitMsgOnOpen)); + CHKiRet(tcpsrv.SetPreserveCase(pOurTcpsrv, inst->bPreserveCase)); + /* now set optional params, but only if they were actually configured */ + psz = (inst->pszStrmDrvrName == NULL) ? modConf->pszStrmDrvrName : inst->pszStrmDrvrName; + if(psz != NULL) { + CHKiRet(tcpsrv.SetDrvrName(pOurTcpsrv, psz)); + } + psz = (inst->pszStrmDrvrAuthMode == NULL) ? modConf->pszStrmDrvrAuthMode : inst->pszStrmDrvrAuthMode; + if(psz != NULL) { + CHKiRet(tcpsrv.SetDrvrAuthMode(pOurTcpsrv, psz)); + } + psz = (inst->gnutlsPriorityString == NULL) + ? modConf->gnutlsPriorityString : inst->gnutlsPriorityString; + CHKiRet(tcpsrv.SetGnutlsPriorityString(pOurTcpsrv, psz)); + /* Call SetDrvrPermitExpiredCerts required + * when param is NULL default handling for ExpiredCerts is set! */ + psz = (inst->pszStrmDrvrPermitExpiredCerts == NULL) + ? modConf->pszStrmDrvrPermitExpiredCerts : inst->pszStrmDrvrPermitExpiredCerts; + CHKiRet(tcpsrv.SetDrvrPermitExpiredCerts(pOurTcpsrv, psz)); + + psz = (inst->pszStrmDrvrCAFile == NULL) + ? modConf->pszStrmDrvrCAFile : inst->pszStrmDrvrCAFile; + CHKiRet(tcpsrv.SetDrvrCAFile(pOurTcpsrv, psz)); + + psz = (inst->pszStrmDrvrCRLFile == NULL) + ? modConf->pszStrmDrvrCRLFile : inst->pszStrmDrvrCRLFile; + CHKiRet(tcpsrv.SetDrvrCRLFile(pOurTcpsrv, psz)); + + psz = (inst->pszStrmDrvrKeyFile == NULL) + ? modConf->pszStrmDrvrKeyFile : inst->pszStrmDrvrKeyFile; + CHKiRet(tcpsrv.SetDrvrKeyFile(pOurTcpsrv, psz)); + + psz = (inst->pszStrmDrvrCertFile == NULL) + ? modConf->pszStrmDrvrCertFile : inst->pszStrmDrvrCertFile; + CHKiRet(tcpsrv.SetDrvrCertFile(pOurTcpsrv, psz)); + + peers = (inst->pPermPeersRoot == NULL) + ? modConf->pPermPeersRoot : inst->pPermPeersRoot; + if(peers != NULL) { + CHKiRet(tcpsrv.SetDrvrPermPeers(pOurTcpsrv, peers)); + } + + /* initialized, now add socket and listener params */ + DBGPRINTF("imtcp: trying to add port *:%s\n", inst->cnf_params->pszPort); + inst->cnf_params->pRuleset = inst->pBindRuleset; + CHKiRet(tcpsrv.SetInputName(pOurTcpsrv, inst->cnf_params, 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.SetbSPFramingFix(pOurTcpsrv, inst->bSPFramingFix)); + CHKiRet(tcpsrv.SetLinuxLikeRatelimiters(pOurTcpsrv, inst->ratelimitInterval, inst->ratelimitBurst)); + + if((ustrcmp(inst->cnf_params->pszPort, UCHAR_CONSTANT("0")) == 0 + && inst->cnf_params->pszLstnPortFileName == NULL) + || ustrcmp(inst->cnf_params->pszPort, UCHAR_CONSTANT("0")) < 0) { + LogMsg(0, RS_RET_OK, LOG_WARNING, "imtcp: port 0 and no port file set -> using port 514 instead"); + CHKmalloc(inst->cnf_params->pszPort = (uchar*)strdup("514")); + } + tcpsrv.configureTCPListen(pOurTcpsrv, inst->cnf_params); + + tcpsrv_etry_t *etry; + CHKmalloc(etry = (tcpsrv_etry_t*) calloc(1, sizeof(tcpsrv_etry_t))); + etry->tcpsrv = pOurTcpsrv; + etry->next = tcpsrv_root; + tcpsrv_root = etry; + ++n_tcpsrv; + +finalize_it: + if(iRet != RS_RET_OK) { + 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) { + 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->cnf_params->pszPort = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(inppblk.descr[i].name, "address")) { + inst->cnf_params->pszAddr = (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, "framingfix.cisco.asa")) { + inst->bSPFramingFix = (int) pvals[i].val.d.n; + } 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, "streamdriver.mode")) { + inst->iStrmDrvrMode = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "streamdriver.CheckExtendedKeyPurpose")) { + inst->iStrmDrvrExtendedCertCheck = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "streamdriver.PrioritizeSAN")) { + inst->iStrmDrvrSANPreference = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "streamdriver.TlsVerifyDepth")) { + if (pvals[i].val.d.n >= 2) { + inst->iStrmTlsVerifyDepth = (int) pvals[i].val.d.n; + } else { + parser_errmsg("streamdriver.TlsVerifyDepth must be 2 or higher but is %d", + (int) pvals[i].val.d.n); + } + } else if(!strcmp(inppblk.descr[i].name, "streamdriver.authmode")) { + inst->pszStrmDrvrAuthMode = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(inppblk.descr[i].name, "streamdriver.permitexpiredcerts")) { + inst->pszStrmDrvrPermitExpiredCerts = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(inppblk.descr[i].name, "streamdriver.cafile")) { + inst->pszStrmDrvrCAFile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(inppblk.descr[i].name, "streamdriver.crlfile")) { + inst->pszStrmDrvrCRLFile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(inppblk.descr[i].name, "streamdriver.keyfile")) { + inst->pszStrmDrvrKeyFile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(inppblk.descr[i].name, "streamdriver.certfile")) { + inst->pszStrmDrvrCertFile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(inppblk.descr[i].name, "streamdriver.name")) { + inst->pszStrmDrvrName = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(inppblk.descr[i].name, "gnutlsprioritystring")) { + inst->gnutlsPriorityString = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(inppblk.descr[i].name, "permittedpeer")) { + for(int j = 0 ; j < pvals[i].val.d.ar->nmemb ; ++j) { + uchar *const peer = (uchar*) es_str2cstr(pvals[i].val.d.ar->arr[j], NULL); + CHKiRet(net.AddPermittedPeer(&inst->pPermPeersRoot, peer)); + free(peer); + } + } else if(!strcmp(inppblk.descr[i].name, "flowcontrol")) { + inst->bUseFlowControl = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "disablelfdelimiter")) { + inst->bDisableLFDelim = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "discardtruncatedmsg")) { + inst->discardTruncatedMsg = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "notifyonconnectionclose")) { + inst->bEmitMsgOnClose = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "notifyonconnectionopen")) { + inst->bEmitMsgOnOpen = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "addtlframedelimiter")) { + inst->iAddtlFrameDelim = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "maxframesize")) { + const int max = (int) pvals[i].val.d.n; + if(max <= 200000000) { + inst->maxFrameSize = max; + } else { + LogError(0, RS_RET_PARAM_ERROR, "imtcp: invalid value for 'maxFrameSize' " + "parameter given is %d, max is 200000000", max); + ABORT_FINALIZE(RS_RET_PARAM_ERROR); + } + } else if(!strcmp(inppblk.descr[i].name, "maxsessions")) { + inst->iTCPSessMax = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "maxlisteners")) { + inst->iTCPLstnMax = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "supportoctetcountedframing")) { + inst->cnf_params->bSuppOctetFram = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "keepalive")) { + inst->bKeepAlive = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "keepalive.probes")) { + inst->iKeepAliveProbes = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "keepalive.time")) { + inst->iKeepAliveTime = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "keepalive.interval")) { + inst->iKeepAliveIntvl = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "ratelimit.burst")) { + inst->ratelimitBurst = (unsigned int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "ratelimit.interval")) { + inst->ratelimitInterval = (unsigned int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "preservecase")) { + inst->bPreserveCase = (int) pvals[i].val.d.n; + } else if(!strcmp(inppblk.descr[i].name, "listenportfilename")) { + inst->cnf_params->pszLstnPortFileName = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } 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->iStrmDrvrExtendedCertCheck = 0; + loadModConf->iStrmDrvrSANPreference = 0; + loadModConf->iStrmTlsVerifyDepth = 0; + loadModConf->bUseFlowControl = 1; + loadModConf->bKeepAlive = 0; + loadModConf->iKeepAliveIntvl = 0; + loadModConf->iKeepAliveProbes = 0; + loadModConf->iKeepAliveTime = 0; + loadModConf->bEmitMsgOnClose = 0; + loadModConf->bEmitMsgOnOpen = 0; + loadModConf->iAddtlFrameDelim = TCPSRV_NO_ADDTL_DELIMITER; + loadModConf->maxFrameSize = 200000; + loadModConf->bDisableLFDelim = 0; + loadModConf->discardTruncatedMsg = 0; + loadModConf->gnutlsPriorityString = NULL; + loadModConf->pszStrmDrvrName = NULL; + loadModConf->pszStrmDrvrAuthMode = NULL; + loadModConf->pszStrmDrvrPermitExpiredCerts = NULL; + loadModConf->pszStrmDrvrCAFile = NULL; + loadModConf->pszStrmDrvrCRLFile = NULL; + loadModConf->pszStrmDrvrKeyFile = NULL; + loadModConf->pszStrmDrvrCertFile = NULL; + loadModConf->pPermPeersRoot = NULL; + loadModConf->configSetViaV2Method = 0; + loadModConf->bPreserveCase = 1; /* default to true */ + bLegacyCnfModGlobalsPermitted = 1; + /* init legacy config variables */ + 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) { + 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, "discardtruncatedmsg")) { + loadModConf->discardTruncatedMsg = (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, "notifyonconnectionopen")) { + loadModConf->bEmitMsgOnOpen = (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, "maxframesize")) { + const int max = (int) pvals[i].val.d.n; + if(max <= 200000000) { + loadModConf->maxFrameSize = max; + } else { + LogError(0, RS_RET_PARAM_ERROR, "imtcp: invalid value for 'maxFrameSize' " + "parameter given is %d, max is 200000000", max); + ABORT_FINALIZE(RS_RET_PARAM_ERROR); + } + } 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, "gnutlsprioritystring")) { + loadModConf->gnutlsPriorityString = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } 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.CheckExtendedKeyPurpose")) { + loadModConf->iStrmDrvrExtendedCertCheck = (int) pvals[i].val.d.n; + } else if(!strcmp(modpblk.descr[i].name, "streamdriver.PrioritizeSAN")) { + loadModConf->iStrmDrvrSANPreference = (int) pvals[i].val.d.n; + } else if(!strcmp(modpblk.descr[i].name, "streamdriver.TlsVerifyDepth")) { + if (pvals[i].val.d.n >= 2) { + loadModConf->iStrmTlsVerifyDepth = (int) pvals[i].val.d.n; + } else { + parser_errmsg("streamdriver.TlsVerifyDepth must be 2 or higher but is %d", + (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.permitexpiredcerts")) { + loadModConf->pszStrmDrvrPermitExpiredCerts = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(modpblk.descr[i].name, "streamdriver.cafile")) { + loadModConf->pszStrmDrvrCAFile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(modpblk.descr[i].name, "streamdriver.crlfile")) { + loadModConf->pszStrmDrvrCRLFile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(modpblk.descr[i].name, "streamdriver.keyfile")) { + loadModConf->pszStrmDrvrKeyFile = (uchar*)es_str2cstr(pvals[i].val.d.estr, NULL); + } else if(!strcmp(modpblk.descr[i].name, "streamdriver.certfile")) { + loadModConf->pszStrmDrvrCertFile = (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")) { + for(int j = 0 ; j < pvals[i].val.d.ar->nmemb ; ++j) { + uchar *const peer = (uchar*) es_str2cstr(pvals[i].val.d.ar->arr[j], NULL); + CHKiRet(net.AddPermittedPeer(&loadModConf->pPermPeersRoot, peer)); + free(peer); + } + } else if(!strcmp(modpblk.descr[i].name, "preservecase")) { + loadModConf->bPreserveCase = (int) pvals[i].val.d.n; + } 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->maxFrameSize = cs.maxFrameSize; + 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(pPermPeersRoot != NULL) { + assert(pModConf->pPermPeersRoot == NULL); + pModConf->pPermPeersRoot = pPermPeersRoot; + pPermPeersRoot = NULL; /* memory handed over! */ + } + if((cs.pszStrmDrvrAuthMode == NULL) || (cs.pszStrmDrvrAuthMode[0] == '\0')) { + loadModConf->pszStrmDrvrAuthMode = NULL; + } else { + loadModConf->pszStrmDrvrAuthMode = cs.pszStrmDrvrAuthMode; + cs.pszStrmDrvrAuthMode = NULL; + } + pModConf->bPreserveCase = cs.bPreserveCase; + } + 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) +{ + LogError(0, NO_ERRCODE, "imtcp: ruleset '%s' for port %s not found - " + "using default ruleset instead", inst->pszBindRuleset, + inst->cnf_params->pszPort); +} + +BEGINcheckCnf + instanceConf_t *inst; +CODESTARTcheckCnf + for(inst = pModConf->root ; inst != NULL ; inst = inst->next) { + std_checkRuleset(pModConf, inst); + if(inst->cnf_params->bSuppOctetFram == FRAMING_UNSET) + inst->cnf_params->bSuppOctetFram = pModConf->bSuppOctetFram; + } + if(pModConf->root == NULL) { + 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; +CODESTARTactivateCnfPrePrivDrop + runModConf = pModConf; + for(inst = runModConf->root ; inst != NULL ; inst = inst->next) { + addListner(runModConf, inst); + } + if(tcpsrv_root == NULL) + ABORT_FINALIZE(RS_RET_NO_RUN); + tcpsrv_etry_t *etry = tcpsrv_root; + while(etry != NULL) { + CHKiRet(tcpsrv.ConstructFinalize(etry->tcpsrv)); + etry = etry->next; + } +finalize_it: +ENDactivateCnfPrePrivDrop + + +BEGINactivateCnf +CODESTARTactivateCnf + /* sorry, nothing to do here... */ +ENDactivateCnf + + +BEGINfreeCnf + instanceConf_t *inst, *del; +CODESTARTfreeCnf + free(pModConf->gnutlsPriorityString); + free(pModConf->pszStrmDrvrName); + free(pModConf->pszStrmDrvrAuthMode); + free(pModConf->pszStrmDrvrPermitExpiredCerts); + free(pModConf->pszStrmDrvrCAFile); + free(pModConf->pszStrmDrvrCRLFile); + free(pModConf->pszStrmDrvrKeyFile); + free(pModConf->pszStrmDrvrCertFile); + if(pModConf->pPermPeersRoot != NULL) { + net.DestructPermittedPeers(&pModConf->pPermPeersRoot); + } + + for(inst = pModConf->root ; inst != NULL ; ) { + free((void*)inst->pszBindRuleset); + free((void*)inst->pszStrmDrvrAuthMode); + free((void*)inst->pszStrmDrvrName); + free((void*)inst->pszStrmDrvrPermitExpiredCerts); + free((void*)inst->pszStrmDrvrCAFile); + free((void*)inst->pszStrmDrvrCRLFile); + free((void*)inst->pszStrmDrvrKeyFile); + free((void*)inst->pszStrmDrvrCertFile); + free((void*)inst->gnutlsPriorityString); + free((void*)inst->pszInputName); + free((void*)inst->dfltTZ); + if(inst->pPermPeersRoot != NULL) { + net.DestructPermittedPeers(&inst->pPermPeersRoot); + } + del = inst; + inst = inst->next; + free(del); + } +ENDfreeCnf + +static void * +RunServerThread(void *myself) +{ + tcpsrv_etry_t *const etry = (tcpsrv_etry_t*) myself; + rsRetVal iRet; + iRet = tcpsrv.Run(etry->tcpsrv); + if(iRet != RS_RET_OK) { + LogError(0, iRet, "imtcp: error while terminating server; rsyslog may hang on shutdown"); + } + return NULL; +} + + +/* support for running multiple servers on multiple threads (one server per thread) */ +static void +startSrvWrkr(tcpsrv_etry_t *const etry) +{ + int r; + pthread_attr_t sessThrdAttr; + + /* We need to temporarily block all signals because the new thread + * inherits our signal mask. There is a race if we do not block them + * now, and we have seen in practice that this race causes grief. + * So we 1. save the current set, 2. block evertyhing, 3. start + * threads, and 4 reset the current set to saved state. + * rgerhards, 2019-08-16 + */ + sigset_t sigSet, sigSetSave; + sigfillset(&sigSet); + /* enable signals we still need */ + sigdelset(&sigSet, SIGTTIN); + sigdelset(&sigSet, SIGSEGV); + pthread_sigmask(SIG_SETMASK, &sigSet, &sigSetSave); + + pthread_attr_init(&sessThrdAttr); + pthread_attr_setstacksize(&sessThrdAttr, 4096*1024); + r = pthread_create(&etry->tid, &sessThrdAttr, RunServerThread, etry); + if(r != 0) { + LogError(r, NO_ERRCODE, "imtcp error creating server thread"); + /* we do NOT abort, as other servers may run - after all, we logged an error */ + } + pthread_attr_destroy(&sessThrdAttr); + pthread_sigmask(SIG_SETMASK, &sigSetSave, NULL); +} + +/* stop server worker thread + */ +static void +stopSrvWrkr(tcpsrv_etry_t *const etry) +{ + DBGPRINTF("Wait for thread shutdown etry %p\n", etry); + pthread_kill(etry->tid, SIGTTIN); + pthread_join(etry->tid, NULL); + DBGPRINTF("input %p terminated\n", etry); +} + +/* This function is called to gather input. + */ +BEGINrunInput +CODESTARTrunInput + tcpsrv_etry_t *etry = tcpsrv_root->next; + while(etry != NULL) { + startSrvWrkr(etry); + etry = etry->next; + } + + iRet = tcpsrv.Run(tcpsrv_root->tcpsrv); + + /* de-init remaining servers */ + etry = tcpsrv_root->next; + while(etry != NULL) { + stopSrvWrkr(etry); + etry = etry->next; + } +ENDrunInput + + +/* initialize and return if will run or not */ +BEGINwillRun +CODESTARTwillRun + net.PrintAllowedSenders(2); /* TCP */ +ENDwillRun + + +BEGINafterRun +CODESTARTafterRun + tcpsrv_etry_t *etry = tcpsrv_root; + tcpsrv_etry_t *del; + while(etry != NULL) { + iRet = tcpsrv.Destruct(&etry->tcpsrv); + // TODO: check iRet, reprot error + del = etry; + etry = etry->next; + free(del); + } + net.clearAllowedSenders(UCHAR_CONSTANT("TCP")); +ENDafterRun + + +BEGINisCompatibleWithFeature +CODESTARTisCompatibleWithFeature + if(eFeat == sFEATURENonCancelInputTermination) + iRet = RS_RET_OK; +ENDisCompatibleWithFeature + + +BEGINmodExit +CODESTARTmodExit + /* 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(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.maxFrameSize = 200000; + cs.bDisableLFDelim = 0; + cs.bPreserveCase = 1; + free(cs.pszStrmDrvrAuthMode); + cs.pszStrmDrvrAuthMode = NULL; + free(cs.pszInputName); + cs.pszInputName = NULL; + free(cs.lstnPortFile); + cs.lstnPortFile = 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 + tcpsrv_root = 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(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.iKeepAliveIntvl, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted)); + CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverkeepalive_time"), 0, eCmdHdlrInt, + NULL, &cs.iKeepAliveTime, 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(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverpreservecase"), 1, eCmdHdlrBinary, + NULL, &cs.bPreserveCase, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted)); + CHKiRet(regCfSysLineHdlr2(UCHAR_CONSTANT("inputtcpserverlistenportfile"), 1, eCmdHdlrGetWord, + NULL, &cs.lstnPortFile, STD_LOADABLE_MODULE_ID, &bLegacyCnfModGlobalsPermitted)); + CHKiRet(omsdRegCFSLineHdlr(UCHAR_CONSTANT("resetconfigvariables"), 1, eCmdHdlrCustomHandler, + resetConfigVariables, NULL, STD_LOADABLE_MODULE_ID)); +ENDmodInit |