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/*
* Copyright (c) 2001-2003
* 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/msg/priv.h,v 1.4 2003/10/10 14:50:05 hbb Exp $
*
* Private definitions for the IE code file.
*/
#ifndef unimsg_priv_h
#define unimsg_priv_h
#ifdef _KERNEL
#include <sys/systm.h>
#include <machine/stdarg.h>
#define PANIC(X) panic X
#else
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#define PANIC(X) abort()
#endif
/*
* Define a structure for the declaration of information elements.
* For each coding scheme a quadrupel of check, print, encode and
* decode functions must be defined. A structure of the same format
* is used for messages.
*/
typedef void (*uni_print_f)(const union uni_ieall *, struct unicx *);
typedef int (*uni_check_f)(union uni_ieall *, struct unicx *);
typedef int (*uni_encode_f)(struct uni_msg *, union uni_ieall *,
struct unicx *);
typedef int (*uni_decode_f)(union uni_ieall *, struct uni_msg *, u_int,
struct unicx *);
typedef void (*uni_msg_print_f)(const union uni_msgall *, struct unicx *);
typedef int (*uni_msg_check_f)(struct uni_all *, struct unicx *);
typedef int (*uni_msg_encode_f)(struct uni_msg *, union uni_msgall *,
struct unicx *);
typedef int (*uni_msg_decode_f)(union uni_msgall *, struct uni_msg *,
enum uni_ietype, struct uni_iehdr *, u_int, struct unicx *);
struct iedecl {
u_int flags; /* information element flags */
u_int maxlen; /* maximum size */
uni_print_f print;
uni_check_f check;
uni_encode_f encode;
uni_decode_f decode;
};
struct msgdecl {
u_int flags;
const char *name;
uni_msg_print_f print;
uni_msg_check_f check;
uni_msg_encode_f encode;
uni_msg_decode_f decode;
};
enum {
UNIFL_DEFAULT = 0x0001,
UNIFL_ACCESS = 0x0002,
};
extern const struct iedecl *uni_ietable[256][4];
extern const struct msgdecl *uni_msgtable[256];
/*
* Need to check range here because declaring a variable as a enum does not
* guarantee that the values will be legal.
*/
#define GET_IEDECL(IE, CODING) \
({ \
const struct iedecl *_decl = NULL; \
\
if((CODING) <= 3 && (IE) <= 255) \
if((_decl = uni_ietable[IE][CODING]) != NULL) \
if((_decl->flags & UNIFL_DEFAULT) != 0) \
if((_decl = uni_ietable[IE][0]) == NULL) \
PANIC(("IE %02x,%02x -- no default", CODING,IE));\
_decl; \
})
enum {
DEC_OK,
DEC_ILL,
DEC_ERR,
};
void uni_print_ie_internal(enum uni_ietype, const union uni_ieall *,
struct unicx *);
#endif
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