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/*
* Copyright (c) 1996-2003
* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
*
* Author: Hartmut Brandt <harti@freebsd.org>
*
* $Begemot: libunimsg/netnatm/saal/sscop.h,v 1.4 2004/07/08 08:22:16 brandt Exp $
*
* External interface to sscop.
*/
#ifndef _NETNATM_SAAL_SSCOP_H_
#define _NETNATM_SAAL_SSCOP_H_
#include <netnatm/saal/sscopdef.h>
/*
* Define how a buffer looks like.
*/
#ifdef _KERNEL
#ifdef __FreeBSD__
#define SSCOP_MBUF_T mbuf
#endif
#else
#define SSCOP_MBUF_T uni_msg
#endif
struct SSCOP_MBUF_T;
struct sscop;
/*
* Vector for user functions
*/
struct sscop_funcs {
/* management signal from SSCOP */
void (*send_manage)(struct sscop *, void *, enum sscop_maasig,
struct SSCOP_MBUF_T *, u_int, u_int);
/* AAL signal from SSCOP */
void (*send_upper)(struct sscop *, void *, enum sscop_aasig,
struct SSCOP_MBUF_T *, u_int);
/* send a PDU to the wire */
void (*send_lower)(struct sscop *, void *,
struct SSCOP_MBUF_T *);
/* print a message */
void (*verbose)(struct sscop *, void *, const char *, ...)
__printflike(3,4);
#ifndef _KERNEL
/* start a timer */
void *(*start_timer)(struct sscop *, void *, u_int,
void (*)(void *));
/* stop a timer */
void (*stop_timer)(struct sscop *, void *, void *);
#endif
};
/* Function defined by the SSCOP code */
/* create a new SSCOP instance and initialize to default values */
struct sscop *sscop_create(void *, const struct sscop_funcs *);
/* destroy an SSCOP instance */
void sscop_destroy(struct sscop *);
/* get the current parameters of an SSCOP */
void sscop_getparam(const struct sscop *, struct sscop_param *);
/* set new parameters in an SSCOP */
int sscop_setparam(struct sscop *, struct sscop_param *, u_int *);
/* deliver an signal to the SSCOP */
int sscop_aasig(struct sscop *, enum sscop_aasig, struct SSCOP_MBUF_T *, u_int);
/* deliver an management signal to the SSCOP */
int sscop_maasig(struct sscop *, enum sscop_maasig, struct SSCOP_MBUF_T *);
/* SSCOP input function */
void sscop_input(struct sscop *, struct SSCOP_MBUF_T *);
/* Move the window by a given number of messages. Return the new window */
u_int sscop_window(struct sscop *, u_int);
/* declare the lower layer busy or not busy */
u_int sscop_setbusy(struct sscop *, int);
/* retrieve the state */
enum sscop_state sscop_getstate(const struct sscop *);
/* map signals to strings */
const char *sscop_msigname(enum sscop_maasig);
const char *sscop_signame(enum sscop_aasig);
const char *sscop_statename(enum sscop_state);
/* set/get debugging state */
void sscop_setdebug(struct sscop *, u_int);
u_int sscop_getdebug(const struct sscop *);
/* reset the instance */
void sscop_reset(struct sscop *);
#endif
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