2002-07-31 19:27:57 +00:00
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/* packet-cosine.c
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* Routines for decoding CoSine IPNOS L2 debug output
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*
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2002-08-28 21:04:11 +00:00
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* $Id: packet-cosine.c,v 1.4 2002/08/28 21:00:08 jmayer Exp $
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2002-07-31 19:27:57 +00:00
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*
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* Motonori Shindo <mshindo@mshindo.net>
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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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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2002-08-28 21:04:11 +00:00
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*
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2002-07-31 19:27:57 +00:00
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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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2002-08-28 21:04:11 +00:00
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*
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2002-07-31 19:27:57 +00:00
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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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* XXX TODO:
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* o PPoATM and PPoFR encapsulation needs more test.
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*
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <glib.h>
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#include <string.h>
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#include <epan/packet.h>
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static int proto_cosine = -1;
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static int hf_pro = -1;
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static int hf_off = -1;
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static int hf_pri = -1;
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static int hf_rm = -1;
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static int hf_err = -1;
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static gint ett_raw = -1;
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static dissector_handle_t eth_handle;
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static dissector_handle_t ppp_hdlc_handle;
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static dissector_handle_t llc_handle;
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static dissector_handle_t chdlc_handle;
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static dissector_handle_t fr_handle;
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static dissector_handle_t data_handle;
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static void
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dissect_cosine(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_tree *fh_tree;
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proto_item *ti;
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union wtap_pseudo_header *pseudo_header = pinfo->pseudo_header;
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/* load the top pane info. This should be overwritten by
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the next protocol in the stack */
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if(check_col(pinfo->cinfo, COL_RES_DL_SRC))
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col_set_str(pinfo->cinfo, COL_RES_DL_SRC, "N/A" );
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if(check_col(pinfo->cinfo, COL_RES_DL_DST))
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col_set_str(pinfo->cinfo, COL_RES_DL_DST, "N/A" );
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if(check_col(pinfo->cinfo, COL_PROTOCOL))
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "N/A" );
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if(check_col(pinfo->cinfo, COL_INFO))
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col_set_str(pinfo->cinfo, COL_INFO, "CoSine IPNOS L2 debug output" );
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/* populate a tree in the second pane with the status of the link
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layer (ie none) */
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if(tree) {
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ti = proto_tree_add_protocol_format(tree, proto_cosine, tvb, 0, 4,
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"CoSine IPNOS L2 debug output (%s)",
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pseudo_header->cosine.if_name);
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fh_tree = proto_item_add_subtree(ti, ett_raw);
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proto_tree_add_uint(fh_tree, hf_pro, tvb, 0, 0, pseudo_header->cosine.pro);
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proto_tree_add_uint(fh_tree, hf_off, tvb, 0, 0, pseudo_header->cosine.off);
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proto_tree_add_uint(fh_tree, hf_pri, tvb, 0, 0, pseudo_header->cosine.pri);
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proto_tree_add_uint(fh_tree, hf_rm, tvb, 0, 0, pseudo_header->cosine.rm);
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proto_tree_add_uint(fh_tree, hf_err, tvb, 0, 0, pseudo_header->cosine.err);
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2002-08-28 21:04:11 +00:00
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2002-07-31 19:27:57 +00:00
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switch (pseudo_header->cosine.encap) {
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case COSINE_ENCAP_ETH:
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break;
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case COSINE_ENCAP_ATM:
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case COSINE_ENCAP_PPoATM:
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proto_tree_add_text(fh_tree, tvb, 0, 16, "SAR header");
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break;
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case COSINE_ENCAP_PPP:
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case COSINE_ENCAP_FR:
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case COSINE_ENCAP_PPoFR:
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proto_tree_add_text(fh_tree, tvb, 0, 4, "Channel handle ID");
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break;
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case COSINE_ENCAP_HDLC:
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if (pseudo_header->cosine.direction == COSINE_DIR_TX) {
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2002-08-28 21:04:11 +00:00
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proto_tree_add_text(fh_tree, tvb, 0, 2,
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2002-07-31 19:27:57 +00:00
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"Channel handle ID");
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} else if (pseudo_header->cosine.direction == COSINE_DIR_RX) {
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2002-08-28 21:04:11 +00:00
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proto_tree_add_text(fh_tree, tvb, 0, 4,
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2002-07-31 19:27:57 +00:00
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"Channel handle ID");
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}
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break;
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default:
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break;
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}
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}
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switch (pseudo_header->cosine.encap) {
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case COSINE_ENCAP_ETH:
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2002-08-28 21:04:11 +00:00
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call_dissector(eth_handle, tvb_new_subset(tvb, 0, -1, -1),
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2002-07-31 19:27:57 +00:00
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pinfo, tree);
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break;
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case COSINE_ENCAP_ATM:
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case COSINE_ENCAP_PPoATM:
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2002-08-28 21:04:11 +00:00
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call_dissector(llc_handle, tvb_new_subset(tvb, 16, -1, -1),
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2002-07-31 19:27:57 +00:00
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pinfo, tree);
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break;
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case COSINE_ENCAP_PPP:
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2002-08-28 21:04:11 +00:00
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call_dissector(ppp_hdlc_handle, tvb_new_subset(tvb, 4, -1, -1),
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2002-07-31 19:27:57 +00:00
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pinfo, tree);
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break;
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case COSINE_ENCAP_HDLC:
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if (pseudo_header->cosine.direction == COSINE_DIR_TX) {
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2002-08-28 21:04:11 +00:00
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call_dissector(chdlc_handle, tvb_new_subset(tvb, 2, -1, -1),
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2002-07-31 19:27:57 +00:00
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pinfo, tree);
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} else if (pseudo_header->cosine.direction == COSINE_DIR_RX) {
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2002-08-28 21:04:11 +00:00
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call_dissector(chdlc_handle, tvb_new_subset(tvb, 4, -1, -1),
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2002-07-31 19:27:57 +00:00
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pinfo, tree);
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}
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break;
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case COSINE_ENCAP_FR:
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case COSINE_ENCAP_PPoFR:
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2002-08-28 21:04:11 +00:00
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call_dissector(fr_handle, tvb_new_subset(tvb, 4, -1, -1),
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2002-07-31 19:27:57 +00:00
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pinfo, tree);
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break;
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case COSINE_ENCAP_TEST:
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case COSINE_ENCAP_UNKNOWN:
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call_dissector(data_handle, tvb, pinfo, tree);
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break;
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default:
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break;
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}
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}
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void
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proto_register_cosine(void)
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{
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static hf_register_info hf[] = {
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2002-08-28 21:04:11 +00:00
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{ &hf_pro,
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2002-08-16 00:41:39 +00:00
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{ "Protocol", "cosine.pro", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL}},
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2002-08-28 21:04:11 +00:00
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{ &hf_off,
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2002-08-16 00:41:39 +00:00
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{ "Offset", "cosine.off", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL}},
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2002-08-28 21:04:11 +00:00
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{ &hf_pri,
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2002-08-16 00:41:39 +00:00
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{ "Priority", "cosine.pri", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL}},
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2002-08-28 21:04:11 +00:00
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{ &hf_rm,
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2002-08-16 00:41:39 +00:00
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{ "Rate Marking", "cosine.rm", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL}},
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2002-08-28 21:04:11 +00:00
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{ &hf_err,
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2002-08-16 00:41:39 +00:00
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{ "Error Code", "cosine.err", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL}},
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2002-07-31 19:27:57 +00:00
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};
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static gint *ett[] = {
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&ett_raw,
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};
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proto_cosine = proto_register_protocol("CoSine IPNOS L2 debug output",
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"CoSine", "cosine");
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proto_register_field_array(proto_cosine, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_cosine(void)
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{
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dissector_handle_t cosine_handle;
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/*
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* Get handles for dissectors.
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*/
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eth_handle = find_dissector("eth");
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ppp_hdlc_handle = find_dissector("ppp_hdlc");
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llc_handle = find_dissector("llc");
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chdlc_handle = find_dissector("chdlc");
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fr_handle = find_dissector("fr");
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data_handle = find_dissector("data");
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cosine_handle = create_dissector_handle(dissect_cosine, proto_cosine);
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dissector_add("wtap_encap", WTAP_ENCAP_COSINE, cosine_handle);
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}
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