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/* Definitions for strmsrv class.
*
* Copyright 2008-2012 Adiscon GmbH.
*
* This file is part of the rsyslog runtime library.
*
* 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.
*/
#ifndef INCLUDED_STRMSRV_H
#define INCLUDED_STRMSRV_H
#include "obj.h"
#include "strms_sess.h"
/* list of strm listen ports */
struct strmLstnPortList_s {
uchar *pszPort; /**< the ports the listener shall listen on */
uchar *pszInputName; /**< value to be used as input name */
strmsrv_t *pSrv; /**< pointer to higher-level server instance */
strmLstnPortList_t *pNext; /**< next port or NULL */
};
/* the strmsrv object */
struct strmsrv_s {
BEGINobjInstance; /**< Data to implement generic object - MUST be the first data element! */
int bUseKeepAlive; /**< use socket layer KEEPALIVE handling? */
netstrms_t *pNS; /**< pointer to network stream subsystem */
int iDrvrMode; /**< mode of the stream driver to use */
uchar *pszDrvrAuthMode; /**< auth mode of the stream driver to use */
uchar *pszInputName; /**< value to be used as input name */
permittedPeers_t *pPermPeers;/**< driver's permitted peers */
int iLstnMax; /**< max nbr of listeners currently supported */
netstrm_t **ppLstn; /**< our netstream listners */
strmLstnPortList_t **ppLstnPort; /**< pointer to relevant listen port description */
int iSessMax; /**< max number of sessions supported */
strmLstnPortList_t *pLstnPorts; /**< head pointer for listen ports */
int addtlFrameDelim; /**< additional frame delimiter for plain STRM syslog framing (e.g. to handle NetScreen) */
strms_sess_t **pSessions;/**< array of all of our sessions */
void *pUsr; /**< a user-settable pointer (provides extensibility for "derived classes")*/
/* callbacks */
int (*pIsPermittedHost)(struct sockaddr *addr, char *fromHostFQDN, void*pUsrSrv, void*pUsrSess);
rsRetVal (*pRcvData)(strms_sess_t*, char*, size_t, ssize_t *);
rsRetVal (*OpenLstnSocks)(struct strmsrv_s*);
rsRetVal (*pOnListenDeinit)(void*);
rsRetVal (*OnDestruct)(void*);
rsRetVal (*pOnRegularClose)(strms_sess_t *pSess);
rsRetVal (*pOnErrClose)(strms_sess_t *pSess);
/* session specific callbacks */
rsRetVal (*pOnSessAccept)(strmsrv_t *, strms_sess_t*);
rsRetVal (*OnSessConstructFinalize)(void*);
rsRetVal (*pOnSessDestruct)(void*);
rsRetVal (*OnCharRcvd)(strms_sess_t*, uchar);
};
/* interfaces */
BEGINinterface(strmsrv) /* name must also be changed in ENDinterface macro! */
INTERFACEObjDebugPrint(strmsrv);
rsRetVal (*Construct)(strmsrv_t **ppThis);
rsRetVal (*ConstructFinalize)(strmsrv_t __attribute__((unused)) *pThis);
rsRetVal (*Destruct)(strmsrv_t **ppThis);
rsRetVal (*configureSTRMListen)(strmsrv_t*, uchar *pszPort);
//rsRetVal (*SessAccept)(strmsrv_t *pThis, strmLstnPortList_t*, strms_sess_t **ppSess, netstrm_t *pStrm);
rsRetVal (*create_strm_socket)(strmsrv_t *pThis);
rsRetVal (*Run)(strmsrv_t *pThis);
/* set methods */
rsRetVal (*SetAddtlFrameDelim)(strmsrv_t*, int);
rsRetVal (*SetInputName)(strmsrv_t*, uchar*);
rsRetVal (*SetKeepAlive)(strmsrv_t*, int);
rsRetVal (*SetUsrP)(strmsrv_t*, void*);
rsRetVal (*SetCBIsPermittedHost)(strmsrv_t*, int (*) (struct sockaddr *addr, char*, void*, void*));
rsRetVal (*SetCBOpenLstnSocks)(strmsrv_t *, rsRetVal (*)(strmsrv_t*));
rsRetVal (*SetCBOnDestruct)(strmsrv_t*, rsRetVal (*) (void*));
rsRetVal (*SetCBOnRegularClose)(strmsrv_t*, rsRetVal (*) (strms_sess_t*));
rsRetVal (*SetCBOnErrClose)(strmsrv_t*, rsRetVal (*) (strms_sess_t*));
rsRetVal (*SetDrvrMode)(strmsrv_t *pThis, int iMode);
rsRetVal (*SetDrvrAuthMode)(strmsrv_t *pThis, uchar *pszMode);
rsRetVal (*SetDrvrPermPeers)(strmsrv_t *pThis, permittedPeers_t*);
/* session specifics */
rsRetVal (*SetCBOnSessAccept)(strmsrv_t*, rsRetVal (*) (strmsrv_t*, strms_sess_t*));
rsRetVal (*SetCBOnSessDestruct)(strmsrv_t*, rsRetVal (*) (void*));
rsRetVal (*SetCBOnSessConstructFinalize)(strmsrv_t*, rsRetVal (*) (void*));
rsRetVal (*SetSessMax)(strmsrv_t *pThis, int iMaxSess);
rsRetVal (*SetOnCharRcvd)(strmsrv_t *pThis, rsRetVal (*OnMsgCharRcvd)(strms_sess_t*, uchar));
ENDinterface(strmsrv)
#define strmsrvCURR_IF_VERSION 1 /* increment whenever you change the interface structure! */
/* change for v?:
*/
/* prototypes */
PROTOTYPEObj(strmsrv);
/* the name of our library binary */
#define LM_STRMSRV_FILENAME "lmstrmsrv"
#endif /* #ifndef INCLUDED_STRMSRV_H */
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