forked from osmocom/wireshark
98f592713c
- Send last byte of header (type) and data to a packetlogger dissector - Rewrite type to ACI channel in the dissector - Direction is indirectly given from the PL type - Dissect PacketLogger NewC and Info as text svn path=/trunk/; revision=28141
178 lines
5.5 KiB
C
178 lines
5.5 KiB
C
/* packet-packetlogger.c
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* Routines for Apple's PacketLogger Types
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*
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* Copyright 2009, Stig Bjorlykke <stig@bjorlykke.org>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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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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*
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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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*
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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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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <epan/packet.h>
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#define PNAME "PacketLogger"
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#define PSNAME "PKTLOG"
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#define PFNAME "packetlogger"
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static dissector_table_t hci_h1_table;
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static dissector_handle_t data_handle;
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static int proto_packetlogger = -1;
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static int hf_type = -1;
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static int hf_info = -1;
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static gint ett_packetlogger = -1;
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#define PKT_HCI_COMMAND 0x00
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#define PKT_HCI_EVENT 0x01
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#define PKT_SENT_ACL_DATA 0x02
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#define PKT_RECV_ACL_DATA 0x03
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#define PKT_INFO 0xFB
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#define PKT_NEW_CONTROLLER 0xFE
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static const value_string type_vals[] = {
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{ PKT_HCI_COMMAND, "HCI Command" },
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{ PKT_HCI_EVENT, "HCI Event" },
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{ PKT_SENT_ACL_DATA, "Sent ACL Data" },
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{ PKT_RECV_ACL_DATA, "Recv ACL Data" },
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{ PKT_INFO, "Info" },
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{ PKT_NEW_CONTROLLER, "New Controller" },
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{ 0, NULL }
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};
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static void dissect_packetlogger (tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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proto_tree *packetlogger_tree = NULL;
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tvbuff_t *next_tvb;
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proto_item *ti = NULL;
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guint8 pl_type;
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gint len;
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col_set_str (pinfo->cinfo, COL_PROTOCOL, PSNAME);
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col_clear (pinfo->cinfo, COL_INFO);
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ti = proto_tree_add_item (tree, proto_packetlogger, tvb, 0, -1, FALSE);
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packetlogger_tree = proto_item_add_subtree (ti, ett_packetlogger);
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pl_type = tvb_get_guint8 (tvb, 0);
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proto_tree_add_item (packetlogger_tree, hf_type, tvb, 0, 1, FALSE);
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proto_item_append_text (ti, " %s", val_to_str (pl_type, type_vals, "Unknown 0x%02x"));
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len = tvb_length_remaining (tvb, 1);
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next_tvb = tvb_new_subset (tvb, 1, len, len);
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if (pl_type <= PKT_RECV_ACL_DATA) {
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/* HCI H1 packages */
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switch (pl_type) {
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case PKT_HCI_COMMAND:
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pinfo->pseudo_header->bthci.channel = BTHCI_CHANNEL_COMMAND;
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pinfo->pseudo_header->bthci.sent = P2P_DIR_SENT;
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pinfo->p2p_dir = P2P_DIR_SENT;
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break;
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case PKT_HCI_EVENT:
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pinfo->pseudo_header->bthci.channel = BTHCI_CHANNEL_EVENT;
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pinfo->pseudo_header->bthci.sent = P2P_DIR_RECV;
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pinfo->p2p_dir = P2P_DIR_RECV;
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break;
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case PKT_SENT_ACL_DATA:
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pinfo->pseudo_header->bthci.channel = BTHCI_CHANNEL_ACL;
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pinfo->pseudo_header->bthci.sent = P2P_DIR_SENT;
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pinfo->p2p_dir = P2P_DIR_SENT;
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break;
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case PKT_RECV_ACL_DATA:
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pinfo->pseudo_header->bthci.channel = BTHCI_CHANNEL_ACL;
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pinfo->pseudo_header->bthci.sent = P2P_DIR_RECV;
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pinfo->p2p_dir = P2P_DIR_RECV;
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break;
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default:
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pinfo->pseudo_header->bthci.channel = pl_type;
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pinfo->pseudo_header->bthci.sent = P2P_DIR_UNKNOWN;
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pinfo->p2p_dir = P2P_DIR_UNKNOWN;
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break;
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}
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proto_item_set_len (ti, 1);
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col_add_fstr (pinfo->cinfo, COL_INFO, "%s", val_to_str(pl_type, type_vals, "Unknown 0x%02x"));
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if (!dissector_try_port (hci_h1_table, pinfo->pseudo_header->bthci.channel, next_tvb, pinfo, tree)) {
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call_dissector (data_handle, next_tvb, pinfo, tree);
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}
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} else {
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/* PacketLogger data */
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switch (pl_type) {
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case PKT_INFO:
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case PKT_NEW_CONTROLLER:
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proto_tree_add_item (packetlogger_tree, hf_info, next_tvb, 0, len, FALSE);
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col_set_str (pinfo->cinfo, COL_INFO, tvb_format_stringzpad_wsp (next_tvb, 0, len));
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break;
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default:
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call_dissector (data_handle, next_tvb, pinfo, tree);
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col_add_fstr (pinfo->cinfo, COL_INFO, "Unknown 0x%02x", pl_type);
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break;
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}
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}
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}
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void proto_register_packetlogger (void)
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{
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static hf_register_info hf[] = {
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{ &hf_type,
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{ "Type", "packetlogger.type", FT_UINT8, BASE_HEX, VALS(type_vals), 0x0, NULL, HFILL } },
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{ &hf_info,
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{ "Info", "packetlogger.info", FT_STRING, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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};
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static gint *ett[] = {
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&ett_packetlogger
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};
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proto_packetlogger = proto_register_protocol (PNAME, PSNAME, PFNAME);
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register_dissector (PFNAME, dissect_packetlogger, proto_packetlogger);
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proto_register_field_array (proto_packetlogger, 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 proto_reg_handoff_packetlogger (void)
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{
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dissector_handle_t packetlogger_handle;
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packetlogger_handle = find_dissector (PFNAME);
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hci_h1_table = find_dissector_table("hci_h1.type");
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data_handle = find_dissector("data");
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dissector_add ("wtap_encap", WTAP_ENCAP_PACKETLOGGER, packetlogger_handle);
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}
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/*
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* Editor modelines
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*
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* Local Variables:
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* c-basic-offset: 2
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* ex: set shiftwidth=2 tabstop=8 noexpandtab
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* :indentSize=2:tabSize=8:noTabs=false:
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*/
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