2010-05-19 12:44:57 +00:00
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/* packet-btobex.c
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2011-01-02 08:13:40 +00:00
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* Routines for Bluetooth OBEX dissection
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2010-05-19 12:44:57 +00:00
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*
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2011-01-02 08:13:40 +00:00
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* Copyright 2010, Allan M. Madsen
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2010-05-19 12:44:57 +00:00
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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 <glib.h>
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#include <epan/packet.h>
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#include <epan/emem.h>
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#include <epan/reassemble.h>
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#include "packet-btl2cap.h"
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2011-01-02 08:13:40 +00:00
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#include "packet-btsdp.h"
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2010-05-19 12:44:57 +00:00
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/* Initialize the protocol and registered fields */
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static int proto_btobex = -1;
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static int hf_opcode = -1;
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static int hf_response_code = -1;
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static int hf_final_flag = -1;
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static int hf_length = -1;
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static int hf_version = -1;
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static int hf_flags = -1;
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static int hf_constants = -1;
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static int hf_max_pkt_len = -1;
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static int hf_set_path_flags_0 = -1;
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static int hf_set_path_flags_1 = -1;
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static int hf_hdr_id = -1;
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static int hf_hdr_length = -1;
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static int hf_hdr_val_unicode = -1;
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static int hf_hdr_val_byte_seq = -1;
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static int hf_hdr_val_byte = -1;
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static int hf_hdr_val_long = -1;
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/* ************************************************************************* */
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/* Header values for reassembly */
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/* ************************************************************************* */
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static int hf_btobex_fragments = -1;
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static int hf_btobex_fragment = -1;
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static int hf_btobex_fragment_overlap = -1;
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static int hf_btobex_fragment_overlap_conflict = -1;
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static int hf_btobex_fragment_multiple_tails = -1;
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static int hf_btobex_fragment_too_long_fragment = -1;
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static int hf_btobex_fragment_error = -1;
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2011-01-30 21:01:07 +00:00
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static int hf_btobex_fragment_count = -1;
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2010-05-19 12:44:57 +00:00
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static int hf_btobex_reassembled_in = -1;
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static int hf_btobex_reassembled_length = -1;
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2012-03-12 14:38:59 +00:00
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2010-05-19 12:44:57 +00:00
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static gint ett_btobex_fragment = -1;
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static gint ett_btobex_fragments = -1;
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static GHashTable *fragment_table;
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static GHashTable *reassembled_table;
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static const fragment_items btobex_frag_items = {
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&ett_btobex_fragment,
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&ett_btobex_fragments,
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&hf_btobex_fragments,
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&hf_btobex_fragment,
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&hf_btobex_fragment_overlap,
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&hf_btobex_fragment_overlap_conflict,
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&hf_btobex_fragment_multiple_tails,
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&hf_btobex_fragment_too_long_fragment,
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&hf_btobex_fragment_error,
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2011-01-30 21:01:07 +00:00
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&hf_btobex_fragment_count,
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2010-05-19 12:44:57 +00:00
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&hf_btobex_reassembled_in,
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&hf_btobex_reassembled_length,
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"fragments"
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};
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/* Initialize the subtree pointers */
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static gint ett_btobex = -1;
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static gint ett_btobex_hdrs = -1;
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static gint ett_btobex_hdr = -1;
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/* FIXME: Using a static like this is far from safe */
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static guint8 last_opcode[2] = { 1, 1 };
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static dissector_handle_t xml_handle;
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static dissector_handle_t data_handle;
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typedef struct _ext_value_string {
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2012-03-12 14:38:59 +00:00
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guint8 value[16];
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const gchar *strptr;
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2010-05-19 12:44:57 +00:00
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} ext_value_string;
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static const ext_value_string target_vals[] = {
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{ { 0xF9, 0xEC, 0x7B, 0xC4, 0x95, 0x3C, 0x11, 0xD2, 0x98, 0x4E, 0x52, 0x54, 0x00, 0xDC, 0x9E, 0x09 }, "Folder Browsing" },
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{ { 0x79, 0x61, 0x35, 0xf0, 0xf0, 0xc5, 0x11, 0xd8, 0x09, 0x66, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66 }, "Phone Book Access" },
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{ { 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x02, 0xEE, 0x00, 0x00, 0x02 }, "SyncML" },
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{ { 0xE3, 0x3D, 0x95, 0x45, 0x83, 0x74, 0x4A, 0xD7, 0x9E, 0xC5, 0xC1, 0x6B, 0xE3, 0x1E, 0xDE, 0x8E }, "Basic Imaging Push" },
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{ { 0x8E, 0xE9, 0xB3, 0xD0, 0x46, 0x08, 0x11, 0xD5, 0x84, 0x1A, 0x00, 0x02, 0xA5, 0x32, 0x5B, 0x4E }, "Basic Imaging Pull" },
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{ { 0x92, 0x35, 0x33, 0x50, 0x46, 0x08, 0x11, 0xD5, 0x84, 0x1A, 0x00, 0x02, 0xA5, 0x32, 0x5B, 0x4E }, "Basic Imaging Advanced Printing" },
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{ { 0x94, 0x01, 0x26, 0xC0, 0x46, 0x08, 0x11, 0xD5, 0x84, 0x1A, 0x00, 0x02, 0xA5, 0x32, 0x5B, 0x4E }, "Basic Imaging Automativ Archive" },
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{ { 0x94, 0x7E, 0x74, 0x20, 0x46, 0x08, 0x11, 0xD5, 0x84, 0x1A, 0x00, 0x02, 0xA5, 0x32, 0x5B, 0x4E }, "Basic Imaging Remote Camera" },
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{ { 0x94, 0xC7, 0xCD, 0x20, 0x46, 0x08, 0x11, 0xD5, 0x84, 0x1A, 0x00, 0x02, 0xA5, 0x32, 0x5B, 0x4E }, "Basic Imaging Remote Display" },
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{ { 0x8E, 0x61, 0xF9, 0x5D, 0x1A, 0x79, 0x11, 0xD4, 0x8E, 0xA4, 0x00, 0x80, 0x5F, 0x9B, 0x98, 0x34 }, "Basic Imaging Referenced Objects" },
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{ { 0x8E, 0x61, 0xF9, 0x5D, 0x1A, 0x79, 0x11, 0xD4, 0x8E, 0xA4, 0x00, 0x80, 0x5F, 0x9B, 0x98, 0x34 }, "Basic Imaging Archived Objects" },
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{ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }, NULL },
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};
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static const value_string version_vals[] = {
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{ 0x10, "1.0" },
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{ 0x11, "1.1" },
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{ 0x12, "1.2" },
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{ 0x13, "1.3" },
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{ 0x20, "2.0" },
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{ 0x21, "2.1" },
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{ 0, NULL }
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};
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#define BTOBEX_CODE_VALS_CONNECT 0x00
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#define BTOBEX_CODE_VALS_DISCONNECT 0x01
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#define BTOBEX_CODE_VALS_PUT 0x02
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#define BTOBEX_CODE_VALS_GET 0x03
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#define BTOBEX_CODE_VALS_SET_PATH 0x05
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#define BTOBEX_CODE_VALS_CONTINUE 0x10
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#define BTOBEX_CODE_VALS_ABORT 0x7F
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#define BTOBEX_CODE_VALS_MASK 0x7F
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static const value_string code_vals[] = {
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{ BTOBEX_CODE_VALS_CONNECT, "Connect" },
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{ BTOBEX_CODE_VALS_DISCONNECT, "Disconnect" },
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{ BTOBEX_CODE_VALS_PUT, "Put" },
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{ BTOBEX_CODE_VALS_GET, "Get"},
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{ BTOBEX_CODE_VALS_SET_PATH, "Set Path" },
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{ BTOBEX_CODE_VALS_CONTINUE, "Continue" },
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{ 0x20, "Success" },
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{ 0x21, "Created" },
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{ 0x22, "Accepted" },
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{ 0x23, "Non-Authoritative Information" },
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{ 0x24, "No Content" },
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{ 0x25, "Reset Content" },
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{ 0x26, "Partial Content" },
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{ 0x30, "Multiple Choices" },
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{ 0x31, "Moved Permanently" },
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{ 0x32, "Moved Temporarily" },
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{ 0x33, "See Other" },
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{ 0x34, "Not Modified" },
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{ 0x35, "Use Proxy" },
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{ 0x40, "Bad Request" },
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{ 0x41, "Unauthorised" },
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{ 0x42, "Payment Required" },
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{ 0x43, "Forbidden" },
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{ 0x44, "Not Found" },
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{ 0x45, "Method Not Allowed" },
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{ 0x46, "Not Acceptable" },
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{ 0x47, "Proxy Authentication Required" },
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{ 0x48, "Request Timeout" },
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{ 0x49, "Conflict" },
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{ 0x4a, "Gone" },
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{ 0x4b, "Length Required" },
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{ 0x4c, "Precondition Failed" },
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{ 0x4d, "Requested Entity Too Large" },
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{ 0x4e, "Requested URL Too Large" },
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{ 0x4f, "Unsupported Media Type" },
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{ 0x50, "Internal Server Error" },
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{ 0x51, "Not Implemented" },
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{ 0x52, "Bad Gateway" },
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{ 0x53, "Service Unavailable" },
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{ 0x54, "Gateway Timeout" },
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{ 0x55, "HTTP Version Not Supported" },
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{ 0x60, "Database Full" },
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{ 0x61, "Database Locked" },
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{ BTOBEX_CODE_VALS_ABORT, "Abort" },
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{ 0, NULL }
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};
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2012-03-12 14:38:59 +00:00
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static value_string_ext(code_vals_ext) = VALUE_STRING_EXT_INIT(code_vals);
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2010-05-19 12:44:57 +00:00
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static const value_string header_id_vals[] = {
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{ 0x01, "Name" },
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{ 0x05, "Description" },
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{ 0x42, "Type" },
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{ 0x44, "Time (ISO8601)" },
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{ 0x46, "Target" },
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{ 0x47, "HTTP" },
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{ 0x48, "Body" },
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{ 0x49, "End Of Body" },
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{ 0x4a, "Who" },
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{ 0x4c, "App. Parameters" },
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{ 0x4d, "Auth. Challenge" },
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{ 0x4e, "Auth. Response" },
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{ 0x4f, "Object Class" },
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{ 0xc0, "Count" },
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{ 0xc3, "Length" },
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2011-01-02 08:13:40 +00:00
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{ 0xc4, "Time" },
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2010-05-19 12:44:57 +00:00
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{ 0xcb, "Connection Id" },
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{ 0x30, "User Defined" },
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{ 0x31, "User Defined" },
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{ 0x32, "User Defined" },
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{ 0x33, "User Defined" },
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{ 0x34, "User Defined" },
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{ 0x35, "User Defined" },
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{ 0x36, "User Defined" },
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{ 0x37, "User Defined" },
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{ 0x38, "User Defined" },
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{ 0x39, "User Defined" },
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{ 0x3a, "User Defined" },
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{ 0x3b, "User Defined" },
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{ 0x3c, "User Defined" },
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{ 0x3d, "User Defined" },
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{ 0x3e, "User Defined" },
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{ 0x3f, "User Defined" },
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{ 0, NULL }
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};
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2012-03-12 14:38:59 +00:00
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static value_string_ext header_id_vals_ext = VALUE_STRING_EXT_INIT(header_id_vals);
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2010-05-19 12:44:57 +00:00
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2011-01-02 08:13:40 +00:00
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static void
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defragment_init(void)
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2010-05-19 12:44:57 +00:00
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{
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2012-03-12 14:38:59 +00:00
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fragment_table_init(&fragment_table);
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reassembled_table_init(&reassembled_table);
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2010-05-19 12:44:57 +00:00
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}
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2011-01-02 08:13:40 +00:00
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static int
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is_ascii_str(const guint8 *str, int length)
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2010-05-19 12:44:57 +00:00
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{
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2012-03-12 14:38:59 +00:00
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int i;
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2010-05-19 12:44:57 +00:00
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2012-03-12 14:38:59 +00:00
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if ((length < 1) || (str[length-1] != '\0'))
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return 0;
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2010-05-19 12:44:57 +00:00
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2012-03-12 14:38:59 +00:00
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for(i=0; i<length-1; i++) {
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if ((str[i] < 0x20) && (str[i] != 0x0a)) /* not strict ascii */
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break;
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}
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2010-05-19 12:44:57 +00:00
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2012-03-12 14:38:59 +00:00
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if (i < (length-1))
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return 0;
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2010-05-19 12:44:57 +00:00
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2012-03-12 14:38:59 +00:00
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return 1;
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2010-05-19 12:44:57 +00:00
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}
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2011-01-02 08:13:40 +00:00
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static int
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display_unicode_string(tvbuff_t *tvb, proto_tree *tree, int offset, char **data)
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2010-05-19 12:44:57 +00:00
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{
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2012-03-12 14:38:59 +00:00
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char *str, *p;
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int len;
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int charoffset;
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guint16 character;
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/* display a unicode string from the tree and return new offset */
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/*
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* Get the length of the string.
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*/
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len = 0;
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while (tvb_get_ntohs(tvb, offset + len) != '\0')
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len += 2;
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len += 2; /* count the '\0' too */
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/*
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* Allocate a buffer for the string; "len" is the length in
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* bytes, not the length in characters.
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*/
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str = ep_alloc(len/2);
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/* - this assumes the string is just ISO 8859-1 */
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charoffset = offset;
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p = str;
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while ((character = tvb_get_ntohs(tvb, charoffset)) != '\0') {
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*p++ = (char) character;
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charoffset += 2;
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}
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*p = '\0';
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if (!is_ascii_str(str, len/2)) {
|
|
|
|
*str = '\0';
|
|
|
|
}
|
|
|
|
|
|
|
|
proto_tree_add_string(tree, hf_hdr_val_unicode, tvb, offset, len, str);
|
|
|
|
|
|
|
|
if (data)
|
|
|
|
*data = str;
|
|
|
|
|
|
|
|
return offset+len;
|
2010-05-19 12:44:57 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_headers(proto_tree *tree, tvbuff_t *tvb, int offset, packet_info *pinfo)
|
|
|
|
{
|
2012-03-12 14:38:59 +00:00
|
|
|
proto_tree *hdrs_tree = NULL;
|
|
|
|
proto_tree *hdr_tree = NULL;
|
|
|
|
proto_item *hdr = NULL;
|
|
|
|
proto_item *handle_item;
|
|
|
|
gint item_length = -1;
|
|
|
|
guint8 hdr_id, i;
|
|
|
|
|
|
|
|
if (tvb_length_remaining(tvb, offset) > 0) {
|
|
|
|
proto_item *hdrs;
|
|
|
|
hdrs = proto_tree_add_text(tree, tvb, offset, item_length, "Headers");
|
|
|
|
hdrs_tree = proto_item_add_subtree(hdrs, ett_btobex_hdrs);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
while (tvb_length_remaining(tvb, offset) > 0) {
|
|
|
|
hdr_id = tvb_get_guint8(tvb, offset);
|
|
|
|
|
|
|
|
switch(0xC0 & hdr_id)
|
|
|
|
{
|
|
|
|
case 0x00: /* null terminated unicode */
|
|
|
|
item_length = tvb_get_ntohs(tvb, offset+1);
|
|
|
|
break;
|
|
|
|
case 0x40: /* byte sequence */
|
|
|
|
item_length = tvb_get_ntohs(tvb, offset+1);
|
|
|
|
break;
|
|
|
|
case 0x80: /* 1 byte */
|
|
|
|
item_length = 2;
|
|
|
|
break;
|
|
|
|
case 0xc0: /* 4 bytes */
|
|
|
|
item_length = 5;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
hdr = proto_tree_add_text(hdrs_tree, tvb, offset, item_length, "%s",
|
|
|
|
val_to_str_ext_const(hdr_id, &header_id_vals_ext, "Unknown"));
|
|
|
|
hdr_tree = proto_item_add_subtree(hdr, ett_btobex_hdr);
|
|
|
|
|
|
|
|
proto_tree_add_item(hdr_tree, hf_hdr_id, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
switch(0xC0 & hdr_id)
|
|
|
|
{
|
|
|
|
case 0x00: /* null terminated unicode */
|
|
|
|
{
|
|
|
|
proto_tree_add_item(hdr_tree, hf_hdr_length, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
if ((item_length - 3) > 0) {
|
|
|
|
char *str;
|
|
|
|
|
|
|
|
display_unicode_string(tvb, hdr_tree, offset, &str);
|
|
|
|
proto_item_append_text(hdr_tree, " (\"%s\")", str);
|
|
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " \"%s\"", str);
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
col_append_str(pinfo->cinfo, COL_INFO, " \"\"");
|
|
|
|
}
|
|
|
|
|
|
|
|
offset += item_length - 3;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case 0x40: /* byte sequence */
|
|
|
|
proto_tree_add_item(hdr_tree, hf_hdr_length, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
handle_item = proto_tree_add_item(hdr_tree, hf_hdr_val_byte_seq, tvb, offset, item_length - 3, ENC_NA);
|
|
|
|
|
|
|
|
if (((hdr_id == 0x46) || (hdr_id == 0x4a)) && (item_length == 19)) { /* target or who */
|
|
|
|
for(i=0; target_vals[i].strptr != NULL; i++) {
|
|
|
|
if (tvb_memeql(tvb, offset, target_vals[i].value, 16) == 0) {
|
|
|
|
proto_item_append_text(handle_item, ": %s", target_vals[i].strptr);
|
|
|
|
proto_item_append_text(hdr_tree, " (%s)", target_vals[i].strptr);
|
|
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " - %s", target_vals[i].strptr);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!tvb_strneql(tvb, offset, "<?xml", 5))
|
|
|
|
{
|
|
|
|
tvbuff_t* next_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
|
|
|
|
|
|
call_dissector(xml_handle, next_tvb, pinfo, tree);
|
|
|
|
}
|
|
|
|
else if (is_ascii_str(tvb_get_ptr(tvb, offset,item_length - 3), item_length - 3))
|
|
|
|
{
|
|
|
|
proto_item_append_text(hdr_tree, " (\"%s\")", tvb_get_ephemeral_string(tvb, offset,item_length - 3));
|
|
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " \"%s\"", tvb_get_ephemeral_string(tvb, offset,item_length - 3));
|
|
|
|
}
|
|
|
|
|
|
|
|
offset += item_length - 3;
|
|
|
|
break;
|
|
|
|
case 0x80: /* 1 byte */
|
|
|
|
proto_item_append_text(hdr_tree, " (%i)", tvb_get_ntohl(tvb, offset));
|
|
|
|
proto_tree_add_item(hdr_tree, hf_hdr_val_byte, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
break;
|
|
|
|
case 0xc0: /* 4 bytes */
|
|
|
|
proto_item_append_text(hdr_tree, " (%i)", tvb_get_ntohl(tvb, offset));
|
|
|
|
proto_tree_add_item(hdr_tree, hf_hdr_val_long, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
offset += 4;
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return offset;
|
2010-05-19 12:44:57 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
dissect_btobex(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
|
|
{
|
2012-03-12 14:38:59 +00:00
|
|
|
proto_item *ti;
|
|
|
|
proto_tree *st;
|
|
|
|
fragment_data *frag_msg = NULL;
|
|
|
|
gboolean save_fragmented, complete;
|
|
|
|
tvbuff_t* new_tvb = NULL;
|
|
|
|
tvbuff_t* next_tvb = NULL;
|
|
|
|
guint32 no_of_segments = 0;
|
|
|
|
int offset = 0;
|
|
|
|
|
|
|
|
save_fragmented = pinfo->fragmented;
|
|
|
|
|
|
|
|
frag_msg = NULL;
|
|
|
|
complete = FALSE;
|
|
|
|
|
|
|
|
if (fragment_get(pinfo, pinfo->p2p_dir, fragment_table)) {
|
|
|
|
/* not the first fragment */
|
|
|
|
frag_msg = fragment_add_seq_next(tvb, 0, pinfo, pinfo->p2p_dir,
|
|
|
|
fragment_table, reassembled_table, tvb_length(tvb), TRUE);
|
|
|
|
|
|
|
|
new_tvb = process_reassembled_data(tvb, 0, pinfo,
|
|
|
|
"Reassembled Obex packet", frag_msg, &btobex_frag_items, NULL, tree);
|
|
|
|
|
|
|
|
pinfo->fragmented = TRUE;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
if (tvb_length(tvb) < tvb_get_ntohs(tvb, offset+1)) {
|
|
|
|
/* first fragment in a sequence */
|
|
|
|
no_of_segments = tvb_get_ntohs(tvb, offset+1)/tvb_length(tvb);
|
|
|
|
if (tvb_get_ntohs(tvb, offset+1) > (no_of_segments * tvb_length(tvb)))
|
|
|
|
no_of_segments++;
|
|
|
|
|
|
|
|
frag_msg = fragment_add_seq_next(tvb, 0, pinfo, pinfo->p2p_dir,
|
|
|
|
fragment_table, reassembled_table, tvb_length(tvb), TRUE);
|
|
|
|
|
|
|
|
fragment_set_tot_len(pinfo, pinfo->p2p_dir, fragment_table, no_of_segments-1);
|
|
|
|
|
|
|
|
new_tvb = process_reassembled_data(tvb, 0, pinfo,
|
|
|
|
"Reassembled Obex packet", frag_msg, &btobex_frag_items, NULL, tree);
|
|
|
|
|
|
|
|
pinfo->fragmented = TRUE;
|
|
|
|
}
|
|
|
|
else if (tvb_length(tvb) == tvb_get_ntohs(tvb, offset+1)) {
|
|
|
|
/* non-fragmented */
|
|
|
|
complete = TRUE;
|
|
|
|
pinfo->fragmented = FALSE;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (new_tvb) { /* take it all */
|
|
|
|
next_tvb = new_tvb;
|
|
|
|
complete = TRUE;
|
|
|
|
}
|
|
|
|
else { /* make a new subset */
|
|
|
|
next_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (complete) {
|
|
|
|
guint8 code, final_flag;
|
|
|
|
|
|
|
|
/* fully dissectable packet ready */
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "OBEX");
|
|
|
|
|
|
|
|
ti = proto_tree_add_item(tree, proto_btobex, next_tvb, 0, -1, ENC_NA);
|
|
|
|
st = proto_item_add_subtree(ti, ett_btobex);
|
|
|
|
|
|
|
|
/* op/response code */
|
|
|
|
code = tvb_get_guint8(next_tvb, offset) & BTOBEX_CODE_VALS_MASK;
|
|
|
|
final_flag = tvb_get_guint8(next_tvb, offset) & 0x80;
|
|
|
|
|
|
|
|
switch (pinfo->p2p_dir)
|
|
|
|
{
|
|
|
|
case P2P_DIR_SENT:
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Sent ");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case P2P_DIR_RECV:
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Rcvd ");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case P2P_DIR_UNKNOWN:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Unknown direction %d ",
|
|
|
|
pinfo->p2p_dir);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "%s",
|
|
|
|
val_to_str_ext_const(code, &code_vals_ext, "Unknown"));
|
|
|
|
|
|
|
|
if ((code < BTOBEX_CODE_VALS_CONTINUE) || (code == BTOBEX_CODE_VALS_ABORT)) {
|
|
|
|
proto_tree_add_item(st, hf_opcode, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
if (pinfo->p2p_dir == P2P_DIR_SENT || pinfo->p2p_dir == P2P_DIR_RECV) {
|
|
|
|
last_opcode[pinfo->p2p_dir] = code;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
proto_tree_add_item(st, hf_response_code, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
}
|
|
|
|
proto_tree_add_item(st, hf_final_flag, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
/* length */
|
|
|
|
proto_tree_add_item(st, hf_length, next_tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
|
|
|
|
switch(code)
|
|
|
|
{
|
|
|
|
case BTOBEX_CODE_VALS_CONNECT:
|
|
|
|
proto_tree_add_item(st, hf_version, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
proto_tree_add_item(st, hf_flags, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
proto_tree_add_item(st, hf_max_pkt_len, next_tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case BTOBEX_CODE_VALS_PUT:
|
|
|
|
case BTOBEX_CODE_VALS_GET:
|
|
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " %s", (final_flag == 0x80) ? "final" : "continue");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case BTOBEX_CODE_VALS_SET_PATH:
|
|
|
|
proto_tree_add_item(st, hf_flags, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(st, hf_set_path_flags_0, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
proto_tree_add_item(st, hf_set_path_flags_1, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
proto_tree_add_item(st, hf_constants, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
break;
|
|
|
|
|
|
|
|
case BTOBEX_CODE_VALS_DISCONNECT:
|
|
|
|
case BTOBEX_CODE_VALS_ABORT:
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
{
|
|
|
|
guint8 response_opcode = last_opcode[(pinfo->p2p_dir + 1) & 0x01];
|
|
|
|
|
|
|
|
if (response_opcode == BTOBEX_CODE_VALS_CONNECT) {
|
|
|
|
proto_tree_add_item(st, hf_version, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
proto_tree_add_item(st, hf_flags, next_tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
proto_tree_add_item(st, hf_max_pkt_len, next_tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
|
|
offset += 2;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
dissect_headers(st, next_tvb, offset, pinfo);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* packet fragment */
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "%s Obex fragment",
|
|
|
|
(pinfo->p2p_dir==P2P_DIR_SENT) ? "Sent" : "Rcvd");
|
|
|
|
|
|
|
|
call_dissector(data_handle, next_tvb, pinfo, tree);
|
|
|
|
}
|
|
|
|
|
|
|
|
pinfo->fragmented = save_fragmented;
|
2010-05-19 12:44:57 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_register_btobex(void)
|
|
|
|
{
|
2012-03-12 14:38:59 +00:00
|
|
|
static hf_register_info hf[] = {
|
|
|
|
{ &hf_opcode,
|
|
|
|
{ "Opcode", "btobex.opcode",
|
|
|
|
FT_UINT8, BASE_HEX|BASE_EXT_STRING, &code_vals_ext, BTOBEX_CODE_VALS_MASK,
|
|
|
|
"Request Opcode", HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_response_code,
|
|
|
|
{ "Response Code", "btobex.resp_code",
|
|
|
|
FT_UINT8, BASE_HEX|BASE_EXT_STRING, &code_vals_ext, BTOBEX_CODE_VALS_MASK,
|
|
|
|
NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_final_flag,
|
|
|
|
{ "Final Flag", "btobex.final_flag",
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x80,
|
|
|
|
NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_length,
|
|
|
|
{ "Packet Length", "btobex.pkt_len",
|
|
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
|
|
NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_version,
|
|
|
|
{ "Version", "btobex.version",
|
|
|
|
FT_UINT8, BASE_HEX, VALS(version_vals), 0x00,
|
|
|
|
"Obex Protocol Version", HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_flags,
|
|
|
|
{ "Flags", "btobex.flags",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, 0x00,
|
|
|
|
NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_constants,
|
|
|
|
{ "Constants", "btobex.constants",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, 0x00,
|
|
|
|
NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_max_pkt_len,
|
|
|
|
{ "Max. Packet Length", "btobex.max_pkt_len",
|
|
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
|
|
NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_set_path_flags_0,
|
|
|
|
{ "Go back one folder (../) first", "btobex.set_path_flags_0",
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x01,
|
|
|
|
NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_set_path_flags_1,
|
|
|
|
{ "Do not create folder, if not existing", "btobex.set_path_flags_1",
|
|
|
|
FT_BOOLEAN, 8, NULL, 0x02,
|
|
|
|
NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_hdr_id,
|
|
|
|
{ "Header Id", "btobex.hdr_id",
|
|
|
|
FT_UINT8, BASE_HEX|BASE_EXT_STRING, &header_id_vals_ext, 0x00,
|
|
|
|
NULL, HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_hdr_length,
|
|
|
|
{ "Length", "btobex.pkt_hdr_len",
|
|
|
|
FT_UINT16, BASE_DEC, NULL, 0,
|
|
|
|
"Header Length", HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_hdr_val_unicode,
|
|
|
|
{ "Value", "btobex.pkt_hdr_val_uc",
|
|
|
|
FT_STRING, BASE_NONE, NULL, 0,
|
|
|
|
"Unicode Value", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_hdr_val_byte_seq,
|
|
|
|
{ "Value", "btobex.hdr_val_byte_seq",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"Byte Value", HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_hdr_val_byte,
|
|
|
|
{ "Value", "btobex.hdr_val_byte",
|
|
|
|
FT_UINT8, BASE_HEX, NULL, 0,
|
|
|
|
"Byte Sequence Value", HFILL}
|
|
|
|
},
|
|
|
|
{ &hf_hdr_val_long,
|
|
|
|
{ "Value", "btobex.hdr_val_long",
|
|
|
|
FT_UINT32, BASE_DEC, NULL, 0,
|
|
|
|
"4-byte Value", HFILL}
|
|
|
|
},
|
|
|
|
|
|
|
|
/* for fragmentation */
|
|
|
|
{ &hf_btobex_fragment_overlap,
|
|
|
|
{ "Fragment overlap", "btobex.fragment.overlap", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
|
|
"Fragment overlaps with other fragments", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_btobex_fragment_overlap_conflict,
|
|
|
|
{ "Conflicting data in fragment overlap", "btobex.fragment.overlap.conflict", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
|
|
"Overlapping fragments contained conflicting data", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_btobex_fragment_multiple_tails,
|
|
|
|
{ "Multiple tail fragments found", "btobex.fragment.multipletails", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
|
|
"Several tails were found when defragmenting the packet", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_btobex_fragment_too_long_fragment,
|
|
|
|
{ "Fragment too long", "btobex.fragment.toolongfragment", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
|
|
"Fragment contained data past end of packet", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_btobex_fragment_error,
|
|
|
|
{ "Defragmentation error", "btobex.fragment.error", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
|
|
|
"Defragmentation error due to illegal fragments", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_btobex_fragment_count,
|
|
|
|
{ "Fragment count", "btobex.fragment.count", FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
|
|
NULL, HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_btobex_fragment,
|
|
|
|
{ "OBEX Fragment", "btobex.fragment", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
|
|
|
"btobex Fragment", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_btobex_fragments,
|
|
|
|
{ "OBEX Fragments", "btobex.fragments", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
|
|
"btobex Fragments", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_btobex_reassembled_in,
|
|
|
|
{ "Reassembled OBEX in frame", "btobex.reassembled_in", FT_FRAMENUM, BASE_NONE, NULL, 0x0,
|
|
|
|
"This OBEX frame is reassembled in this frame", HFILL }
|
|
|
|
},
|
|
|
|
{ &hf_btobex_reassembled_length,
|
|
|
|
{ "Reassembled OBEX length", "btobex.reassembled.length", FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
|
|
"The total length of the reassembled payload", HFILL }
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Setup protocol subtree array */
|
|
|
|
static gint *ett[] = {
|
|
|
|
&ett_btobex,
|
|
|
|
&ett_btobex_hdrs,
|
|
|
|
&ett_btobex_hdr,
|
|
|
|
&ett_btobex_fragment,
|
|
|
|
&ett_btobex_fragments
|
|
|
|
};
|
|
|
|
|
|
|
|
proto_btobex = proto_register_protocol("Bluetooth OBEX Protocol", "OBEX", "btobex");
|
|
|
|
|
|
|
|
register_dissector("btobex", dissect_btobex, proto_btobex);
|
|
|
|
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
|
|
proto_register_field_array(proto_btobex, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
|
|
|
|
register_init_routine(&defragment_init);
|
2010-05-19 12:44:57 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void
|
|
|
|
proto_reg_handoff_btobex(void)
|
|
|
|
{
|
2012-03-12 14:38:59 +00:00
|
|
|
dissector_handle_t btobex_handle;
|
|
|
|
|
|
|
|
btobex_handle = find_dissector("btobex");
|
|
|
|
|
|
|
|
/* register in rfcomm and l2cap the profiles/services this dissector should handle */
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_OPP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_FTP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_BPP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_BPP_STATUS_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_BIP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_BIP_RESPONDER_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_BIP_AUTO_ARCH_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_BIP_REF_OBJ_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_PBAP_PCE_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_PBAP_PSE_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_PBAP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_MAP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_MAP_ACCESS_SRV_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btrfcomm.service", BTSDP_MAP_NOIYFY_SRV_SERVICE_UUID, btobex_handle);
|
|
|
|
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_OPP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_FTP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_BPP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_BPP_STATUS_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_BIP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_BIP_RESPONDER_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_BIP_AUTO_ARCH_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_BIP_REF_OBJ_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_PBAP_PCE_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_PBAP_PSE_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_PBAP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_MAP_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_MAP_ACCESS_SRV_SERVICE_UUID, btobex_handle);
|
|
|
|
dissector_add_uint("btl2cap.service", BTSDP_MAP_NOIYFY_SRV_SERVICE_UUID, btobex_handle);
|
|
|
|
|
|
|
|
xml_handle = find_dissector("xml");
|
|
|
|
data_handle = find_dissector("data");
|
2010-05-19 12:44:57 +00:00
|
|
|
}
|
|
|
|
|