priv.h revision 131827
1/* 2 * Copyright (c) 2001-2003 3 * Fraunhofer Institute for Open Communication Systems (FhG Fokus). 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * Author: Hartmut Brandt <harti@freebsd.org> 28 * 29 * $Begemot: libunimsg/netnatm/msg/priv.h,v 1.4 2003/10/10 14:50:05 hbb Exp $ 30 * 31 * Private definitions for the IE code file. 32 */ 33#ifndef unimsg_priv_h 34#define unimsg_priv_h 35 36#ifdef _KERNEL 37#include <sys/systm.h> 38#include <machine/stdarg.h> 39#define PANIC(X) panic X 40#else 41#include <stdio.h> 42#include <stdarg.h> 43#include <stdlib.h> 44#define PANIC(X) abort() 45#endif 46 47/* 48 * Define a structure for the declaration of information elements. 49 * For each coding scheme a quadrupel of check, print, encode and 50 * decode functions must be defined. A structure of the same format 51 * is used for messages. 52 */ 53typedef void (*uni_print_f)(const union uni_ieall *, struct unicx *); 54typedef int (*uni_check_f)(union uni_ieall *, struct unicx *); 55typedef int (*uni_encode_f)(struct uni_msg *, union uni_ieall *, 56 struct unicx *); 57typedef int (*uni_decode_f)(union uni_ieall *, struct uni_msg *, u_int, 58 struct unicx *); 59 60typedef void (*uni_msg_print_f)(const union uni_msgall *, struct unicx *); 61typedef int (*uni_msg_check_f)(struct uni_all *, struct unicx *); 62typedef int (*uni_msg_encode_f)(struct uni_msg *, union uni_msgall *, 63 struct unicx *); 64typedef int (*uni_msg_decode_f)(union uni_msgall *, struct uni_msg *, 65 enum uni_ietype, struct uni_iehdr *, u_int, struct unicx *); 66 67struct iedecl { 68 u_int flags; /* information element flags */ 69 u_int maxlen; /* maximum size */ 70 uni_print_f print; 71 uni_check_f check; 72 uni_encode_f encode; 73 uni_decode_f decode; 74}; 75 76struct msgdecl { 77 u_int flags; 78 const char *name; 79 uni_msg_print_f print; 80 uni_msg_check_f check; 81 uni_msg_encode_f encode; 82 uni_msg_decode_f decode; 83}; 84 85enum { 86 UNIFL_DEFAULT = 0x0001, 87 UNIFL_ACCESS = 0x0002, 88}; 89 90extern const struct iedecl *uni_ietable[256][4]; 91extern const struct msgdecl *uni_msgtable[256]; 92 93/* 94 * Need to check range here because declaring a variable as a enum does not 95 * guarantee that the values will be legal. 96 */ 97#define GET_IEDECL(IE, CODING) \ 98({ \ 99 const struct iedecl *_decl = NULL; \ 100 \ 101 if((CODING) <= 3 && (IE) <= 255) \ 102 if((_decl = uni_ietable[IE][CODING]) != NULL) \ 103 if((_decl->flags & UNIFL_DEFAULT) != 0) \ 104 if((_decl = uni_ietable[IE][0]) == NULL) \ 105 PANIC(("IE %02x,%02x -- no default", CODING,IE));\ 106 _decl; \ 107}) 108 109 110enum { 111 DEC_OK, 112 DEC_ILL, 113 DEC_ERR, 114}; 115 116void uni_print_ie_internal(enum uni_ietype, const union uni_ieall *, 117 struct unicx *); 118 119#endif 120