/* packet-cosine.c * Routines for decoding CoSine IPNOS L2 debug output * * Motonori Shindo * * Wireshark - 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ /* * XXX TODO: * o PPoATM and PPoFR encapsulation needs more test. * */ #include "config.h" #include #include void proto_register_cosine(void); void proto_reg_handoff_cosine(void); 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 int hf_sar = -1; static int hf_channel_id = -1; static gint ett_raw = -1; static dissector_handle_t eth_withoutfcs_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 int dissect_cosine(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) { 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 */ col_set_str(pinfo->cinfo, COL_RES_DL_SRC, "N/A"); col_set_str(pinfo->cinfo, COL_RES_DL_DST, "N/A"); col_set_str(pinfo->cinfo, COL_PROTOCOL, "N/A"); 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, 0, "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_item(fh_tree, hf_sar, tvb, 0, 16, ENC_NA); break; case COSINE_ENCAP_PPP: case COSINE_ENCAP_FR: case COSINE_ENCAP_PPoFR: proto_tree_add_item(fh_tree, hf_channel_id, tvb, 0, 4, ENC_NA); break; case COSINE_ENCAP_HDLC: if (pseudo_header->cosine.direction == COSINE_DIR_TX) { proto_tree_add_item(fh_tree, hf_channel_id, tvb, 0, 2, ENC_NA); } else if (pseudo_header->cosine.direction == COSINE_DIR_RX) { proto_tree_add_item(fh_tree, hf_channel_id, tvb, 0, 4, ENC_NA); } break; default: break; } } switch (pseudo_header->cosine.encap) { case COSINE_ENCAP_ETH: call_dissector(eth_withoutfcs_handle, tvb_new_subset_remaining(tvb, 0), pinfo, tree); break; case COSINE_ENCAP_ATM: case COSINE_ENCAP_PPoATM: call_dissector(llc_handle, tvb_new_subset_remaining(tvb, 16), pinfo, tree); break; case COSINE_ENCAP_PPP: call_dissector(ppp_hdlc_handle, tvb_new_subset_remaining(tvb, 4), pinfo, tree); break; case COSINE_ENCAP_HDLC: if (pseudo_header->cosine.direction == COSINE_DIR_TX) { call_dissector(chdlc_handle, tvb_new_subset_remaining(tvb, 2), pinfo, tree); } else if (pseudo_header->cosine.direction == COSINE_DIR_RX) { call_dissector(chdlc_handle, tvb_new_subset_remaining(tvb, 4), pinfo, tree); } break; case COSINE_ENCAP_FR: case COSINE_ENCAP_PPoFR: call_dissector(fr_handle, tvb_new_subset_remaining(tvb, 4), pinfo, tree); break; case COSINE_ENCAP_TEST: case COSINE_ENCAP_UNKNOWN: call_data_dissector(tvb, pinfo, tree); break; default: break; } return tvb_captured_length(tvb); } void proto_register_cosine(void) { static hf_register_info hf[] = { { &hf_pro, { "Protocol", "cosine.pro", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_off, { "Offset", "cosine.off", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_pri, { "Priority", "cosine.pri", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_rm, { "Rate Marking", "cosine.rm", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_err, { "Error Code", "cosine.err", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}}, { &hf_sar, { "SAR header", "cosine.sar", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL}}, { &hf_channel_id, { "Channel handle ID", "cosine.channel_id", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, 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_withoutfcs_handle = find_dissector_add_dependency("eth_withoutfcs", proto_cosine); ppp_hdlc_handle = find_dissector_add_dependency("ppp_hdlc", proto_cosine); llc_handle = find_dissector_add_dependency("llc", proto_cosine); chdlc_handle = find_dissector_add_dependency("chdlc", proto_cosine); fr_handle = find_dissector_add_dependency("fr", proto_cosine); cosine_handle = create_dissector_handle(dissect_cosine, proto_cosine); dissector_add_uint("wtap_encap", WTAP_ENCAP_COSINE, cosine_handle); } /* * Editor modelines - http://www.wireshark.org/tools/modelines.html * * Local Variables: * c-basic-offset: 2 * tab-width: 8 * indent-tabs-mode: nil * End: * * ex: set shiftwidth=2 tabstop=8 expandtab: * :indentSize=2:tabSize=8:noTabs=true: */