relay.h

/*
 * Copyright 2013-2022 Fabian Groffen
 *
 * 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
 *
 * 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 HAVE_RELAY_H
#define HAVE_RELAY_H 1

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#define METRIC_BUFSIZ 32768

/* these are the various modes in which the relay runs */
#define MODE_DEBUG      (1 << 0)
#define MODE_SUBMISSION (1 << 1)
#define MODE_TEST       (1 << 2)
#define MODE_DAEMON     (1 << 3)
#define MODE_TRACE      (1 << 4)
#define MODE_CONFIGTEST (1 << 5)
#define MODE_METRICSTAT (1 << 6)
extern unsigned char mode;

#ifdef ENABLE_TRACE
#define tracef(...) if (mode & MODE_TRACE) { fprintf(stdout, __VA_ARGS__); fflush(stdout); }
#else
#define tracef(...) /* noop */
#endif

extern char relay_hostname[];
extern char noexpire;
extern char *sslCA;
extern char sslCAisdir;

enum logdst { LOGOUT, LOGERR };

typedef enum {
	CON_TCP  = 1,
	CON_UDP  = 2,
	CON_PIPE = 3,
	CON_FILE = 4,
	CON_UNIX = 5
} con_proto;
typedef enum {
	T_LINEMODE   = 1,
	T_SYSLOGMODE = 2
} con_type;
typedef enum {
	W_PLAIN  = 1,
#ifdef HAVE_GZIP
	W_GZIP   = 2,
#endif
#ifdef HAVE_LZ4
	W_LZ4    = 3,
#endif
#ifdef HAVE_SNAPPY
	W_SNAPPY = 4,
#endif
	W_SSL    = 1 << 16,  /* used as bit-flag */
	W_MTLS   = 1 << 17   /* used as bit-flag */
} con_trnsp;

int relaylog(enum logdst dest, const char *fmt, ...);
#define logout(args...) relaylog(LOGOUT, args)
#define logerr(args...) relaylog(LOGERR, args)

#define saddr_ntop(SADDR, BUF) { \
	BUF[0] = '\0'; \
	if ((SADDR)->ai_family == PF_INET) { \
		inet_ntop((SADDR)->ai_family, \
					&((struct sockaddr_in *)(SADDR)->ai_addr)->sin_addr, \
					BUF, sizeof(BUF)); \
	} else if ((SADDR)->ai_family == PF_INET6) { \
		inet_ntop((SADDR)->ai_family, \
					&((struct sockaddr_in6 *)(SADDR)->ai_addr)->sin6_addr, \
					BUF, sizeof(BUF)); \
	} \
}

#endif