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/* packet-isis-hello.h
* Declares for hello handling inside isis.
*
* $Id: packet-isis-hello.h,v 1.1 1999/12/15 04:34:18 guy Exp $
* Stuart Stanley <stuarts@mxmail.net>
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@zing.org>
* Copyright 1998 Gerald Combs
*
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*
*/
#ifndef _PACKET_ISIS_HELLO_H
#define _PACKET_ISIS_HELLO_H
/*
* Declare L1/L2 hello base header.
*/
typedef struct {
guint8 isis_hello_circuit_reserved; /* circuit type & reserved */
#define ISIS_HELLO_CTYPE_MASK 0x03
#define ISIS_HELLO_CT_RESERVED_MASK 0xfc
guint8 isis_hello_source_id[6]; /* source id */
guint8 isis_hello_holding_timer[2]; /* holding timer */
guint8 isis_hello_pdu_length[2]; /* full length, including hdr */
guint8 isis_hello_priority_reserved; /* priority & reserved */
#define ISIS_HELLO_PRIORITY_MASK 0x7f
#define ISIS_HELLO_P_RESERVED_MASK 0x80
guint8 isis_hello_lan_id[7]; /* LAN id */
} isis_hello_t;
#define isis_hello_circuit isis_hello_circuit_reserved&ISIS_HELLO_CTYPE_MASK
#define isis_hello_creserved \
isis_hello_circuit_reserved&ISIS_HELLO_CT_RESERVED_MASK
#define isis_hello_priority \
isis_hello_priority_reserved&ISIS_HELLO_PRIORITY_MASK
#define isis_hello_preserved \
isis_hello_priority_reserved&ISIS_HELLO_P_RESERVED_MASK
#define ISIS_HELLO_TYPE_RESERVED 0
#define ISIS_HELLO_TYPE_LEVEL_1 1
#define ISIS_HELLO_TYPE_LEVEL_2 2
#define ISIS_HELLO_TYPE_LEVEL_12 3
/*
* detail clv information on l1 hello packets
*/
#define ISIS_CLV_L1H_AREA_ADDRESS 1
#define ISIS_CLV_L1H_IS_NEIGHBORS 6
#define ISIS_CLV_L1H_PADDING 8
#define ISIS_CLV_L1H_NLPID 129
#define ISIS_CLV_L1H_IP_INTERFACE_ADDR 132
/*
* Note, the spec say 133, but everyone seems to use 10. Any clue on why
* this is would be appreciated!
*/
#define ISIS_CLV_L1H_AUTHENTICATION_NS 10 /*non spec */
#define ISIS_CLV_L1H_AUTHENTICATION 133
/*
* detail clv information on l2 hello packets
*/
#define ISIS_CLV_L2H_AREA_ADDRESS 1
#define ISIS_CLV_L2H_IS_NEIGHBORS 6
#define ISIS_CLV_L2H_PADDING 8
#define ISIS_CLV_L2H_NLPID 129
#define ISIS_CLV_L2H_IP_INTERFACE_ADDR 132
/*
* Note, the spec say 133, but everyone seems to use 10. Any clue on why
* this is would be appreciated!
*/
#define ISIS_CLV_L2H_AUTHENTICATION_NS 10 /*non spec */
#define ISIS_CLV_L2H_AUTHENTICATION 133
/*
* detail clv information on PTP hello packets
*/
#define ISIS_CLV_PTP_AREA_ADDRESS 1
#define ISIS_CLV_PTP_PADDING 8
#define ISIS_CLV_PTP_NLPID 129
#define ISIS_CLV_PTP_IP_INTERFACE_ADDR 132
/*
* Note, the spec say 133, but everyone seems to use 10. Any clue on why
* this is would be appreciated!
*/
#define ISIS_CLV_PTP_AUTHENTICATION_NS 10 /*non spec */
#define ISIS_CLV_PTP_AUTHENTICATION 133
/*
* Published API functions. NOTE, this are "local" API functions and
* are only valid from with isis decodes.
*/
extern void isis_dissect_isis_hello(int hello_type, int header_length,
const u_char *pd, int offset, frame_data *fd, proto_tree *tree);
#endif /* _PACKET_ISIS_HELLO_H */
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