mirror of https://github.com/F-Stack/f-stack.git
120 lines
3.8 KiB
C
120 lines
3.8 KiB
C
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/*
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* Copyright (c) 2001-2003
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* Fraunhofer Institute for Open Communication Systems (FhG Fokus).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Author: Hartmut Brandt <harti@freebsd.org>
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*
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* $Begemot: libunimsg/netnatm/msg/priv.h,v 1.4 2003/10/10 14:50:05 hbb Exp $
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*
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* Private definitions for the IE code file.
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*/
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#ifndef unimsg_priv_h
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#define unimsg_priv_h
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#ifdef _KERNEL
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#include <sys/systm.h>
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#include <machine/stdarg.h>
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#define PANIC(X) panic X
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#else
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#include <stdio.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#define PANIC(X) abort()
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#endif
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/*
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* Define a structure for the declaration of information elements.
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* For each coding scheme a quadrupel of check, print, encode and
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* decode functions must be defined. A structure of the same format
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* is used for messages.
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*/
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typedef void (*uni_print_f)(const union uni_ieall *, struct unicx *);
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typedef int (*uni_check_f)(union uni_ieall *, struct unicx *);
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typedef int (*uni_encode_f)(struct uni_msg *, union uni_ieall *,
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struct unicx *);
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typedef int (*uni_decode_f)(union uni_ieall *, struct uni_msg *, u_int,
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struct unicx *);
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typedef void (*uni_msg_print_f)(const union uni_msgall *, struct unicx *);
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typedef int (*uni_msg_check_f)(struct uni_all *, struct unicx *);
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typedef int (*uni_msg_encode_f)(struct uni_msg *, union uni_msgall *,
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struct unicx *);
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typedef int (*uni_msg_decode_f)(union uni_msgall *, struct uni_msg *,
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enum uni_ietype, struct uni_iehdr *, u_int, struct unicx *);
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struct iedecl {
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u_int flags; /* information element flags */
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u_int maxlen; /* maximum size */
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uni_print_f print;
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uni_check_f check;
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uni_encode_f encode;
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uni_decode_f decode;
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};
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struct msgdecl {
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u_int flags;
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const char *name;
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uni_msg_print_f print;
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uni_msg_check_f check;
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uni_msg_encode_f encode;
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uni_msg_decode_f decode;
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};
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enum {
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UNIFL_DEFAULT = 0x0001,
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UNIFL_ACCESS = 0x0002,
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};
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extern const struct iedecl *uni_ietable[256][4];
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extern const struct msgdecl *uni_msgtable[256];
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/*
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* Need to check range here because declaring a variable as a enum does not
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* guarantee that the values will be legal.
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*/
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#define GET_IEDECL(IE, CODING) \
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({ \
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const struct iedecl *_decl = NULL; \
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\
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if((CODING) <= 3 && (IE) <= 255) \
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if((_decl = uni_ietable[IE][CODING]) != NULL) \
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if((_decl->flags & UNIFL_DEFAULT) != 0) \
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if((_decl = uni_ietable[IE][0]) == NULL) \
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PANIC(("IE %02x,%02x -- no default", CODING,IE));\
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_decl; \
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})
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enum {
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DEC_OK,
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DEC_ILL,
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DEC_ERR,
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};
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void uni_print_ie_internal(enum uni_ietype, const union uni_ieall *,
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struct unicx *);
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#endif
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