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/* tcpsyslog.h
* These are the definitions for TCP-based syslog.
*
* File begun on 2007-07-21 by RGerhards (extracted from syslogd.c)
*
* Copyright 2007 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.
*/
#ifndef TCPSYSLOG_H_INCLUDED
#define TCPSYSLOG_H_INCLUDED 1
#include <netdb.h>
#if defined(SYSLOG_INET) && defined(USE_GSSAPI)
#include <gssapi/gssapi.h>
#endif
typedef enum _TCPFRAMINGMODE {
TCP_FRAMING_OCTET_STUFFING = 0, /* traditional LF-delimited */
TCP_FRAMING_OCTET_COUNTING = 1 /* -transport-tls like octet count */
} TCPFRAMINGMODE;
struct TCPSession {
int sock;
int iMsg; /* index of next char to store in msg */
int bAtStrtOfFram; /* are we at the very beginning of a new frame? */
int iOctetsRemain; /* Number of Octets remaining in message */
TCPFRAMINGMODE eFraming;
char msg[MAXLINE+1];
char *fromHost;
#if defined(SYSLOG_INET) && defined(USE_GSSAPI)
OM_uint32 gss_flags;
gss_ctx_id_t gss_context;
char allowedMethods;
#endif
};
/* static data */
extern int *sockTCPLstn;
extern char *TCPLstnPort;
extern int bEnableTCP;
extern struct TCPSession *pTCPSessions;
#if defined(SYSLOG_INET) && defined(USE_GSSAPI)
extern char *gss_listen_service_name;
#define ALLOWEDMETHOD_GSS 2
#endif
#define ALLOWEDMETHOD_TCP 1
/* prototypes */
void deinit_tcp_listener(void);
int *create_tcp_socket(void);
int TCPSessGetNxtSess(int iCurr);
int TCPSessAccept(int fd);
void TCPSessPrepareClose(int iTCPSess);
void TCPSessClose(int iSess);
int TCPSessDataRcvd(int iTCPSess, char *pData, int iLen);
void configureTCPListen(char *cOptarg);
#if defined(SYSLOG_INET) && defined(USE_GSSAPI)
int TCPSessGSSInit(void);
int TCPSessGSSAccept(int fd);
int TCPSessGSSRecv(int fd, void *buf, size_t buf_len);
void TCPSessGSSClose(int sess);
void TCPSessGSSDeinit(void);
#endif
/* TCP Send support (shall go into its own module later) */
int TCPSendCreateSocket(struct addrinfo *addrDest);
int TCPSend(void *pData, char *msg, size_t len, TCPFRAMINGMODE rqdFraming,
rsRetVal (*initFunc)(void*),
rsRetVal (*sendFunc)(void*, char*, size_t),
rsRetVal (*prepRetryFunc)(void*));
#endif /* #ifndef TCPSYSLOG_H_INCLUDED */
/*
* vi:set ai:
*/
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