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