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tuntap.h
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tuntap.h
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/*
* Copyright (c) 2012 Tristan Le Guern <leguern AT medu DOT se>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#ifndef LIBTUNTAP_H_
# define LIBTUNTAP_H_
# define TUNTAP_ID_MAX 256
# define TUNTAP_ID_ANY 257
# define TUNTAP_MODE_ETHERNET 0x0001
# define TUNTAP_MODE_TUNNEL 0x0002
# define TUNTAP_MODE_PERSIST 0x0004
# define TUNTAP_LOG_NONE 0x0000
# define TUNTAP_LOG_DEBUG 0x0001
# define TUNTAP_LOG_INFO 0x0002
# define TUNTAP_LOG_NOTICE 0x0004
# define TUNTAP_LOG_WARN 0x0008
# define TUNTAP_LOG_ERR 0x0016
/* Versioning: 0xMMmm, with 'M' for major and 'm' for minor */
# define TUNTAP_VERSION_MAJOR 0
# define TUNTAP_VERSION_MINOR 4
# define TUNTAP_VERSION ((TUNTAP_VERSION_MAJOR<<8)|TUNTAP_VERSION_MINOR)
/* Handle Windows symbols export */
# if defined Windows
# if defined(tuntap_EXPORTS) /* CMake generated goo */
# define TUNTAP_EXPORT __declspec(dllexport)
# else
# define TUNTAP_EXPORT __declspec(dllimport)
# endif
# else /* Unix */
# define TUNTAP_EXPORT
# endif
# ifdef __cplusplus
extern "C" {
# endif
/* Forward declaration of struct device */
struct device;
# if defined Windows
typedef HANDLE t_tun;
# else /* Unix */
typedef int t_tun;
# endif
/* User definable log callback */
typedef void (*t_tuntap_log)(int, const char *);
/* Portable "public" functions */
TUNTAP_EXPORT struct device *tuntap_init(void);
TUNTAP_EXPORT int tuntap_version(void);
TUNTAP_EXPORT void tuntap_destroy(struct device *);
TUNTAP_EXPORT void tuntap_release(struct device *);
TUNTAP_EXPORT int tuntap_start(struct device *, int, int);
TUNTAP_EXPORT char *tuntap_get_ifname(struct device *);
TUNTAP_EXPORT int tuntap_set_ifname(struct device *, const char *);
TUNTAP_EXPORT char *tuntap_get_hwaddr(struct device *);
TUNTAP_EXPORT int tuntap_set_hwaddr(struct device *, const char *);
TUNTAP_EXPORT int tuntap_set_descr(struct device *, const char *);
TUNTAP_EXPORT char *tuntap_get_descr(struct device *);
TUNTAP_EXPORT int tuntap_up(struct device *);
TUNTAP_EXPORT int tuntap_down(struct device *);
TUNTAP_EXPORT int tuntap_get_mtu(struct device *);
TUNTAP_EXPORT int tuntap_set_mtu(struct device *, int);
TUNTAP_EXPORT int tuntap_set_ip(struct device *, const char *, int);
TUNTAP_EXPORT int tuntap_read(struct device *, void *, size_t);
TUNTAP_EXPORT int tuntap_write(struct device *, void *, size_t);
TUNTAP_EXPORT int tuntap_get_readable(struct device *);
TUNTAP_EXPORT int tuntap_set_nonblocking(struct device *dev, int);
TUNTAP_EXPORT int tuntap_set_debug(struct device *dev, int);
TUNTAP_EXPORT t_tun tuntap_get_fd(struct device *);
/* Logging functions */
TUNTAP_EXPORT void tuntap_log_set_cb(t_tuntap_log cb);
# ifdef __cplusplus
}
# endif
#endif