forked from osmocom/wireshark
120 lines
3.9 KiB
C
120 lines
3.9 KiB
C
/* packet-isis-lsp.h
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* Defines and such for LSP and their CLV decodes
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*
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* $Id: packet-isis-lsp.h,v 1.1 1999/12/15 04:34:18 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_LSP_H
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#define _PACKET_ISIS_LSP_H
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/*
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* Declare what an LSP id looks like (used by LSP and sequence number
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* packets)
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*/
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typedef struct {
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guint8 source_id[6]; /* source id part */
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guint8 psuodonode_id; /* psn id */
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guint8 lsp_number; /* frag number */
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} isis_lsp_id_t;
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/*
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* Declare L1/L2 LSP base header.
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*/
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typedef struct {
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guint8 isis_lsp_pdu_length[2]; /* pdu length including hdr */
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guint8 isis_lsp_remaining_life[2]; /* seconds before expiration */
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isis_lsp_id_t isis_lsp_id;
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guint8 isis_lsp_sequence_number[4];
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guint8 isis_lsp_checksum[2];
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guint8 isis_lsp_type_block; /* partition/att/hip/istype */
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} isis_lsp_t;
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#define ISIS_LSP_PARTITION_MASK 0x80
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#define ISIS_LSP_ATT_MASK 0x78
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#define ISIS_LSP_ATT_SHIFT 3
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#define ISIS_LSP_HIPPITY_MASK 0x04
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#define ISIS_LSP_IS_TYPE_MASK 0x03
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#define ISIS_LSP_PARTITION(x) (x&ISIS_LSP_PARTITION_MASK)
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#define ISIS_LSP_ATT(x) ((x&ISIS_LSP_ATT_MASK)>>ISIS_LSP_ATT_SHIFT)
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#define ISIS_LSP_HIPPITY(x) (x&ISIS_LSP_HIPPITY_MASK)
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#define ISIS_LSP_IS_TYPE(x) (x&ISIS_LSP_IS_TYPE_MASK)
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#define ISIS_LSP_TYPE_UNUSED0 0
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#define ISIS_LSP_TYPE_LEVEL_1 1
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#define ISIS_LSP_TYPE_UNUSED2 2
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#define ISIS_LSP_TYPE_LEVEL_2 3
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#define ISIS_LSP_CLV_METRIC_SUPPORTED(x) ((x)&0xf0)
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#define ISIS_LSP_CLV_METRIC_RESERVED(x) ((x)&0x40)
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#define ISIS_LSP_CLV_METRIC_VALUE(x) ((x)&0x3f)
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/*
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* detail clv information on L1 lsp packets
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*/
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#define ISIS_CLV_L1_LSP_AREA_ADDRESS 1
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#define ISIS_CLV_L1_LSP_IS_NEIGHBORS 2
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#define ISIS_CLV_L1_LSP_ES_NEIGHBORS 3
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#define ISIS_CLV_L1_LSP_IP_INT_REACHABLE 128
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#define ISIS_CLV_L1_LSP_NLPID 129
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#define ISIS_CLV_L1_LSP_IP_INTERFACE_ADDR 132
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/*
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* Note, the spec say 133, but everyone seems to use 10. Any clue on why
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* this is would be appreciated!
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*/
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#define ISIS_CLV_L1_LSP_AUTHENTICATION_NS 10 /* non spec */
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#define ISIS_CLV_L1_LSP_AUTHENTICATION 133
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/*
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* detail clv information on L2 lsp packets
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*/
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#define ISIS_CLV_L2_LSP_AREA_ADDRESS 1
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#define ISIS_CLV_L2_LSP_IS_NEIGHBORS 2
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#define ISIS_CLV_L2_LSP_PARTITION_DIS 4
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#define ISIS_CLV_L2_LSP_PREFIX_NEIGHBORS 5
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#define ISIS_CLV_L2_LSP_IP_INT_REACHABLE 128
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#define ISIS_CLV_L2_LSP_NLPID 129
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#define ISIS_CLV_L2_LSP_IP_EXT_REACHABLE 130
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#define ISIS_CLV_L2_LSP_IDRP_INFO 131
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#define ISIS_CLV_L2_LSP_IP_INTERFACE_ADDR 132
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/*
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* Note, the spec say 133, but everyone seems to use 10. Any clue on why
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* this is would be appreciated!
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*/
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#define ISIS_CLV_L2_LSP_AUTHENTICATION_NS 10 /*non spec */
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#define ISIS_CLV_L2_LSP_AUTHENTICATION 133
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/*
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* Published API functions. NOTE, this are "local" API functions and
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* are only valid from with isis decodes.
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*/
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extern void isis_dissect_isis_lsp(int hello_type, int header_length,
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const u_char *pd, int offset, frame_data *fd, proto_tree *tree);
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extern void isis_lsp_decode_lsp_id(char *tstr, proto_tree *tree, int offset,
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isis_lsp_id_t *id );
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#endif /* _PACKET_ISIS_LSP_H */
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