/*
* Copyright (c) 2015 Jiri Svoboda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* - Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* - Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* - The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** @addtogroup libnettl
* @{
*/
/**
* @file Port range allocator.
*/
#ifndef LIBNETTL_PORTRNG_H_
#define LIBNETTL_PORTRNG_H_
#include <stdbool.h>
#include <stdint.h>
/** Allocated port */
typedef struct {
/** Link to portrng_t.used */
link_t lprng;
/** Port number */
uint16_t pn;
/** User argument */
void *arg;
} portrng_port_t;
typedef struct {
list_t used; /* of portrng_port_t */
} portrng_t;
typedef enum {
pf_allow_system = 0x1
} portrng_flags_t;
extern errno_t portrng_create(portrng_t **);
extern void portrng_destroy(portrng_t *);
extern errno_t portrng_alloc(portrng_t *, uint16_t, void *,
portrng_flags_t, uint16_t *);
extern errno_t portrng_find_port(portrng_t *, uint16_t, void **);
extern void portrng_free_port(portrng_t *, uint16_t);
extern bool portrng_empty(portrng_t *);
#endif
/** @}
*/