forked from osmocom/wireshark
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* packet-isis.h
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* Defines and such for core isis protcol decode.
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*
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* $Id: packet-isis.h,v 1.2 2000/01/13 06:07:52 guy Exp $
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* Stuart Stanley <stuarts@mxmail.net>
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@zing.org>
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* Copyright 1998 Gerald Combs
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*
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*/
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#ifndef _PACKET_ISIS_H
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#define _PACKET_ISIS_H
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/*
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* The version we support is 1
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*/
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#define ISIS_REQUIRED_VERSION 1
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/*
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* ISIS type field values
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*/
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#define ISIS_TYPE_L1_HELLO 15
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#define ISIS_TYPE_L2_HELLO 16
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#define ISIS_TYPE_PTP_HELLO 17
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#define ISIS_TYPE_L1_LSP 18
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#define ISIS_TYPE_L2_LSP 20
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#define ISIS_TYPE_L1_CSNP 24
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#define ISIS_TYPE_L2_CSNP 25
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#define ISIS_TYPE_L1_PSNP 26
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#define ISIS_TYPE_L2_PSNP 27
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/*
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* The common first 8 octets of the ISIS protocol header.
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*/
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typedef struct {
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guint8 isis_irpd; /* Intradomain Routing Protocol Descriminator. Must be 0x83 */
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guint8 isis_header_length; /* header length in octets */
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guint8 isis_version; /* isis version, must be 0x01 */
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guint8 isis_reserved; /* res byte, must be 0 */
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guint8 isis_type_reserved; /* packet type & reserved */
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#define ISIS_TYPE_MASK 0x1f
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#define ISIS_R8_MASK 0x80
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#define ISIS_R7_MASK 0x40
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#define ISIS_R6_MASK 0x20
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guint8 isis_version2; /* another version(?!), must be 0x01 */
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guint8 isis_eco; /* ECO, must be 0 */
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guint8 isis_user_eco; /* user ECO, must be 0 */
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} isis_hdr_t;
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#define isis_type isis_type_reserved&ISIS_TYPE_MASK
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#define isis_r8 isis_type_reserved&ISIS_R8_MASK
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#define isis_r7 isis_type_reserved&ISIS_R7_MASK
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#define isis_r6 isis_type_reserved&ISIS_R6_MASK
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/*
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* published API functions
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*/
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extern char *isis_address_to_string ( const u_char *pd, int offset, int len );
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extern void dissect_isis(const u_char *pd, int offset, frame_data *fd,
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proto_tree *tree);
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extern void proto_register_isis(void);
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extern void isis_dissect_unknown(int offset,guint length,proto_tree *tree,frame_data *fd,
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char *fmat, ...);
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#endif /* _PACKET_ISIS_H */
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