forked from osmocom/wireshark
c8196a1d1c
ESIS dissectors. Register the IP dissector and have dissectors that call it directly (rather than through a port table) call it through a handle. Add a routine "tvb_set_reported_length()" which a dissector can use if it was handed a tvbuff that contains more data than is actually in its part of the packet - for example, handing a padded Ethernet frame to IP; the routine sets the reported length of the tvbuff (and also adjusts the actual length, as appropriate). Then use it in IP. Given that, "ethertype()" can determine how much of the Ethernet frame was actually part of an IP datagram (and can do the same for other protocols under Ethernet that use "tvb_set_reported_length()"; have it return the actual length, and have "dissect_eth()" and "dissect_vlan()" use that to mark trailer data in Ethernet II frames as well as in 802.3 frames. svn path=/trunk/; revision=2658
113 lines
3.4 KiB
C
113 lines
3.4 KiB
C
/* packet-osi.h
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*
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* $Id: packet-osi.h,v 1.5 2000/11/18 10:38:25 guy Exp $
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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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#ifndef _PACKET_OSI_H
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#define _PACKET_OSI_H
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/* OSI Global defines, common for all OSI protocols */
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#define MAX_NSAP_LEN 30
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#define MAX_SYSTEMID_LEN 15
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#define MAX_AREA_LEN 30
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#define RFC1237_NSAP_LEN 20
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#define RFC1237_FULLAREA_LEN 13
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#define RFC1237_SYSTEMID_LEN 6
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#define RFC1237_SELECTOR_LEN 1
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#define RFC1237_IDI_LEN 2
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#define RFC1237_AFI_LEN 1
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#define RFC1237_DFI_LEN 1
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#define RFC1237_ORG_LEN 3
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#define RFC1237_AA_LEN 3
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#define RFC1237_RSVD_LEN 2
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#define RFC1237_RD_LEN 2
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#define RFC1237_AREA_LEN 3
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#define NSAP_IDI_ISODCC 0x39
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#define NSAP_IDI_GOSIP2 0x47
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#define PDU_TYPE_ESIS_ESH 100
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#define PDU_TYPE_ESIS_ISH 101
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#define PDU_TYPE_ESIS_RD 102
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#define PDU_TYPE_ISIS_L1_HELLO 201
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#define PDU_TYPE_ISIS_L2_HELLO 202
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#define PDU_TYPE_ISIS_PTP_HELLO 203
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#define PDU_TYPE_ISIS_L1_CSNP 204
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#define PDU_TYPE_ISIS_L1_PSNP 205
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#define PDU_TYPE_ISIS_L2_CSNP 206
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#define PDU_TYPE_ISIS_L2_PSNP 207
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#define PROTO_STRING_ISIS "ISO 10589 ISIS InTRA Domain Routeing Information Exchange Protocol"
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#define PROTO_STRING_IDRP "ISO 10747 IDRP InTER Domain Routeing Information Exchange Protocol"
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#define PROTO_STRING_ESIS "ISO 9542 ESIS Routeing Information Exchange Protocol"
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#define PROTO_STRING_CLNP "ISO 8473 CLNP ConnectionLess Network Protocol"
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#define PROTO_STRING_COTP "ISO 8073 COTP Connection-Oriented Transport Protocol"
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#define PROTO_STRING_CLTP "ISO 8602 CLTP ConnectionLess Transport Protocol"
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#define PROTO_STRING_LSP "ISO 10589 ISIS Link State Protocol Data Unit"
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#define PROTO_STRING_CSNP "ISO 10589 ISIS Complete Sequence Numbers Protocol Data Unit"
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#define PROTO_STRING_PSNP "ISO 10589 ISIS Partial Sequence Numbers Protocol Data Unit"
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#define OSI_PDU_TYPE_MASK 0x1f
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#define BIS_PDU_TYPE MASK 0xff
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#define BIT_1 0x01
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#define BIT_2 0x02
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#define BIT_3 0x04
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#define BIT_4 0x08
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#define BIT_5 0x10
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#define BIT_6 0x20
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#define BIT_7 0x40
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#define BIT_8 0x80
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#define BIT_9 0x0100
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#define BIT_10 0x0200
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#define BIT_11 0x0400
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#define BIT_12 0x0800
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#define BIT_13 0x1000
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#define BIT_14 0x2000
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#define BIT_15 0x4000
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#define BIT_16 0x8000
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/*
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* published API functions
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*/
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extern void dissect_osi( tvbuff_t *, packet_info *, proto_tree *);
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extern gchar *print_nsap_net ( const u_char *, int );
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extern gchar *print_area ( const u_char *, int );
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extern gchar *print_system_id( const u_char *, int );
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extern gchar *calc_checksum ( tvbuff_t *, int, u_int, u_int );
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#endif /* _PACKET_OSI_H */
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