9b7c1a8ce6
This commit adds a new configuration variable "FORCE_NAT" to the access.conf
file:
For any valid SPA packet, force the requested connection to be NAT'd
through to the specified (usually internal) IP and port value. This is
useful if there are multiple internal systems running a service such as
SSHD, and you want to give transparent access to only one internal system
for each stanza in the access.conf file. This way, multiple external
users can each directly access only one internal system per SPA key.
This commit also implements a few minor code cleanups.
136 lines
3.2 KiB
C
136 lines
3.2 KiB
C
/*
|
|
******************************************************************************
|
|
*
|
|
* File: common.h
|
|
*
|
|
* Author: Damien Stuart
|
|
*
|
|
* Purpose: Common header file for fwknop client and server programs.
|
|
*
|
|
* Copyright 2010 Damien Stuart (dstuart@dstuart.org)
|
|
*
|
|
* License (GNU Public License):
|
|
*
|
|
* This program 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 2
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
|
|
* USA
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
#ifndef _COMMON_H
|
|
#define _COMMON_H
|
|
|
|
/* Common includes for our other fwknop client and server source files.
|
|
*/
|
|
#if HAVE_CONFIG_H
|
|
#include "config.h"
|
|
#endif
|
|
|
|
#include <stdio.h>
|
|
|
|
#if HAVE_SYS_TYPES_H
|
|
#include <sys/types.h>
|
|
#endif
|
|
|
|
#if HAVE_ERRNO_H
|
|
#include <errno.h>
|
|
#endif
|
|
|
|
#if STDC_HEADERS
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#elif HAVE_STRINGS_H
|
|
#include <strings.h>
|
|
#endif /* STDC_HEADERS*/
|
|
|
|
#if HAVE_UNISTD_H
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#if HAVE_NETINET_IN_H
|
|
#include <netinet/in.h>
|
|
#endif
|
|
|
|
#if HAVE_CTYPE_H
|
|
#include <ctype.h>
|
|
#endif
|
|
|
|
#if HAVE_TIME_H
|
|
#include <time.h>
|
|
#endif
|
|
|
|
#ifdef WIN32
|
|
#define strcasecmp _stricmp
|
|
#define strncasecmp _strnicmp
|
|
#define snprintf _snprintf
|
|
#define unlink _unlink
|
|
#define PATH_SEP '\\'
|
|
#else
|
|
#include <signal.h>
|
|
#define PATH_SEP '/'
|
|
#endif
|
|
|
|
#include "fko.h"
|
|
|
|
/* Get our program version from VERSION (defined in config.h).
|
|
*/
|
|
#define MY_VERSION VERSION
|
|
|
|
enum {
|
|
FKO_PROTO_UDP,
|
|
FKO_PROTO_TCP,
|
|
FKO_PROTO_TCP_RAW,
|
|
FKO_PROTO_ICMP,
|
|
FKO_PROTO_HTTP,
|
|
};
|
|
|
|
/* Other common defines
|
|
*/
|
|
#define FKO_DEFAULT_PROTO FKO_PROTO_UDP
|
|
#define FKO_DEFAULT_PORT 62201
|
|
#define DEFAULT_NAT_PORT 55000
|
|
#define MIN_HIGH_PORT 10000 /* sensible minimum for SPA dest port */
|
|
#define MAX_PORT 65535
|
|
#define MAX_PORT_STR_LEN 6
|
|
#define MAX_PROTO_STR_LEN 6
|
|
#define MAX_IPV4_STR_LEN 16
|
|
#define MIN_IPV4_STR_LEN 9
|
|
#define MAX_SERVER_STR_LEN 50
|
|
|
|
#define MAX_LINE_LEN 1024
|
|
#define MAX_PATH_LEN 1024
|
|
#define MAX_GPG_KEY_ID 128
|
|
#define MAX_USERNAME_LEN 30
|
|
|
|
/* Some convenience macros */
|
|
|
|
/* Characters allowed between a config parameter and its value.
|
|
*/
|
|
#define IS_CONFIG_PARAM_DELIMITER(x) (x == ' ' || x == '\t' || x == '=');
|
|
|
|
/* End of line characters.
|
|
*/
|
|
#define IS_LINE_END(x) (x == '\n' || x == '\r' || x == ';');
|
|
|
|
/* Characters in the first position of a line that make it considered
|
|
* empty or otherwise non-interesting (like a comment).
|
|
*/
|
|
#define IS_EMPTY_LINE(x) ( \
|
|
x == '#' || x == '\n' || x == '\r' || x == ';' || x == '\0' \
|
|
)
|
|
|
|
#endif /* _COMMON_H */
|
|
|
|
/***EOF***/
|