diff options
Diffstat (limited to 'epan/dissectors/packet-ascend.c')
| -rw-r--r-- | epan/dissectors/packet-ascend.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/epan/dissectors/packet-ascend.c b/epan/dissectors/packet-ascend.c new file mode 100644 index 0000000000..1c3caa7f8d --- /dev/null +++ b/epan/dissectors/packet-ascend.c @@ -0,0 +1,169 @@ +/* packet-ascend.c + * Routines for decoding Lucent/Ascend packet traces + * + * $Id$ + * + * Ethereal - Network traffic analyzer + * By Gerald Combs <gerald@ethereal.com> + * + * 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. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <glib.h> +#include <string.h> +#include <epan/packet.h> + +static int proto_ascend = -1; +static int hf_link_type = -1; +static int hf_session_id = -1; +static int hf_called_number = -1; +static int hf_chunk = -1; +static int hf_task = -1; +static int hf_user_name = -1; + +static gint ett_raw = -1; + +static const value_string encaps_vals[] = { + {ASCEND_PFX_WDS_X, "PPP Transmit"}, + {ASCEND_PFX_WDS_R, "PPP Receive" }, + {ASCEND_PFX_WDD, "Ethernet" }, + {0, NULL } }; + +static dissector_handle_t eth_handle; +static dissector_handle_t ppp_hdlc_handle; + +static void +dissect_ascend(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, "Lucent/Ascend packet trace" ); + + /* If this is a transmitted or received PPP frame, set the PPP direction. */ + switch (pseudo_header->ascend.type) { + + case ASCEND_PFX_WDS_X: + pinfo->p2p_dir = P2P_DIR_SENT; + break; + + case ASCEND_PFX_WDS_R: + pinfo->p2p_dir = P2P_DIR_RECV; + break; + } + + /* 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_ascend, tvb, 0, 0, + "Lucent/Ascend packet trace"); + fh_tree = proto_item_add_subtree(ti, ett_raw); + proto_tree_add_uint(fh_tree, hf_link_type, tvb, 0, 0, + pseudo_header->ascend.type); + if (pseudo_header->ascend.type == ASCEND_PFX_WDD) { + proto_tree_add_string(fh_tree, hf_called_number, tvb, 0, 0, + pseudo_header->ascend.call_num); + proto_tree_add_uint(fh_tree, hf_chunk, tvb, 0, 0, + pseudo_header->ascend.chunk); + proto_tree_add_uint_hidden(fh_tree, hf_session_id, tvb, 0, 0, 0); + } else { /* It's wandsession data */ + proto_tree_add_string(fh_tree, hf_user_name, tvb, 0, 0, + pseudo_header->ascend.user); + proto_tree_add_uint(fh_tree, hf_session_id, tvb, 0, 0, + pseudo_header->ascend.sess); + proto_tree_add_uint_hidden(fh_tree, hf_chunk, tvb, 0, 0, 0); + } + proto_tree_add_uint(fh_tree, hf_task, tvb, 0, 0, pseudo_header->ascend.task); + } + + switch (pseudo_header->ascend.type) { + case ASCEND_PFX_WDS_X: + case ASCEND_PFX_WDS_R: + call_dissector(ppp_hdlc_handle, tvb, pinfo, tree); + break; + case ASCEND_PFX_WDD: + call_dissector(eth_handle, tvb, pinfo, tree); + break; + default: + break; + } +} + +void +proto_register_ascend(void) +{ + static hf_register_info hf[] = { + { &hf_link_type, + { "Link type", "ascend.type", FT_UINT32, BASE_DEC, VALS(encaps_vals), 0x0, + "", HFILL }}, + + { &hf_session_id, + { "Session ID", "ascend.sess", FT_UINT32, BASE_DEC, NULL, 0x0, + "", HFILL }}, + + { &hf_called_number, + { "Called number", "ascend.number", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL }}, + + { &hf_chunk, + { "WDD Chunk", "ascend.chunk", FT_UINT32, BASE_HEX, NULL, 0x0, + "", HFILL }}, + + { &hf_task, + { "Task", "ascend.task", FT_UINT32, BASE_HEX, NULL, 0x0, + "", HFILL }}, + + { &hf_user_name, + { "User name", "ascend.user", FT_STRING, BASE_NONE, NULL, 0x0, + "", HFILL }}, + }; + static gint *ett[] = { + &ett_raw, + }; + + proto_ascend = proto_register_protocol("Lucent/Ascend debug output", + "Lucent/Ascend", "ascend"); + proto_register_field_array(proto_ascend, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); +} + +void +proto_reg_handoff_ascend(void) +{ + dissector_handle_t ascend_handle; + + /* + * Get handles for the Ethernet and PPP-in-HDLC-like-framing dissectors. + */ + eth_handle = find_dissector("eth"); + ppp_hdlc_handle = find_dissector("ppp_hdlc"); + + ascend_handle = create_dissector_handle(dissect_ascend, proto_ascend); + dissector_add("wtap_encap", WTAP_ENCAP_ASCEND, ascend_handle); +} |