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| author | Guy Harris <guy@alum.mit.edu> | 2001-06-23 19:45:12 +0000 |
|---|---|---|
| committer | Guy Harris <guy@alum.mit.edu> | 2001-06-23 19:45:12 +0000 |
| commit | d4c81a142ca4e3ffbc7d8efbf27a344a2b0ad7b9 (patch) | |
| tree | 71a8c3883a8b4e66d004da4e6a6633ea068e593f /packet-isis-clv.c | |
| parent | fb82ca171db86296e238940f5caacc21d284d339 (diff) | |
| download | wireshark-d4c81a142ca4e3ffbc7d8efbf27a344a2b0ad7b9.tar.gz | |
More IS-IS updates.
HELLO message support in RSVP.
svn path=/trunk/; revision=3604
Diffstat (limited to 'packet-isis-clv.c')
| -rw-r--r-- | packet-isis-clv.c | 57 |
1 files changed, 54 insertions, 3 deletions
diff --git a/packet-isis-clv.c b/packet-isis-clv.c index bf8c55dab9..41841cdba7 100644 --- a/packet-isis-clv.c +++ b/packet-isis-clv.c @@ -1,13 +1,12 @@ /* packet-isis-clv.c * Common CLV decode routines. * - * $Id: packet-isis-clv.c,v 1.12 2001/06/05 21:23:32 guy Exp $ + * $Id: packet-isis-clv.c,v 1.13 2001/06/23 19:45:12 guy Exp $ * Stuart Stanley <stuarts@mxmail.net> * * Ethereal - Network traffic analyzer - * By Gerald Combs <gerald@zing.org> + * By Gerald Combs <gerald@ethereal.com> * 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 @@ -229,6 +228,58 @@ isis_dissect_hostname_clv(const u_char *pd, int offset, +void +isis_dissect_mt_clv(const u_char *pd, int offset, + guint length, frame_data *fd, proto_tree *tree, gint tree_id ) { + + int mt_block; + char mt_desc[60]; + + while (length>1) { + /* length can only be a multiple of 2, otherwise there is + something broken -> so decode down until length is 1 */ + if (length!=1) + { + /* fetch two bytes */ + mt_block=(*(pd+offset)<<8)+(*(pd+offset+1)); + + /* mask out the lower 12 bits */ + switch(mt_block&0x0fff) { + case 0: + strcpy(mt_desc,"IPv4 unicast"); + break; + case 1: + strcpy(mt_desc,"In-Band Management"); + break; + case 2: + strcpy(mt_desc,"IPv6 unicast"); + break; + case 3: + strcpy(mt_desc,"Multicast"); + break; + case 4095: + strcpy(mt_desc,"Development, Experimental or Proprietary"); + break; + default: + strcpy(mt_desc,"Reserved for IETF Consensus"); + } + proto_tree_add_text ( tree, NullTVB, offset, 2 , + "%s Topology (0x%x)%s%s", + mt_desc, + mt_block&0xfff, + (mt_block&0x8000) ? "" : ", no sub-TLVs present", + (mt_block&0x4000) ? ", ATT bit set" : "" ); + } + else { + proto_tree_add_text ( tree, NullTVB, offset, 1 , + "malformed MT-ID"); + break; + } + length=length-2; + offset=offset+2; + } +} + /* * Name: isis_dissect_ip_int_clv() |