forked from osmocom/wireshark
From Allan M. Madsen:
Initial implementation of Bluetooth OBEX dissector. Work in progress. svn path=/trunk/; revision=32862
This commit is contained in:
Kovarththanan Rajaratnam
parent
427acccd3f
commit
9d568f7f9c
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@ -372,6 +372,7 @@ set(DISSECTOR_SRC
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dissectors/packet-bthci_evt.c
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dissectors/packet-bthci_sco.c
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dissectors/packet-btl2cap.c
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dissectors/packet-btobex.c
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dissectors/packet-btrfcomm.c
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dissectors/packet-btsdp.c
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dissectors/packet-bvlc.c
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@ -276,6 +276,7 @@ DISSECTOR_SRC = \
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packet-bthci_evt.c \
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packet-bthci_sco.c \
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packet-btl2cap.c \
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packet-btobex.c \
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packet-btrfcomm.c \
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packet-btsdp.c \
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packet-bvlc.c \
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@ -0,0 +1,765 @@
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/* packet-btobex.c
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* Routines for the Bluetooth OBEX dissection
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*
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* Allan M. Madsen 2010
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*
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* $Id: packet-btobex.c 32860 2010-05-18 06:09:52Z krj $
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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 <string.h>
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#include <epan/packet.h>
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#include <epan/value_string.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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/* 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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static int hf_data = -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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static int hf_btobex_reassembled_in = -1;
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static int hf_btobex_reassembled_length = -1;
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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 = NULL;
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static GHashTable *reassembled_table = NULL;
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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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&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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static guint8 last_opcode[2] = {1,1};
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static dissector_handle_t xml_handle=NULL;
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static dissector_handle_t data_handle=NULL;
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typedef struct _ext_value_string {
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guint8 value[16];
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const gchar *strptr;
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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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static const true_false_string true_false = {
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"True",
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"False"
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};
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static const value_string code_vals[] = {
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{ 0x00, "Connect" },
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{ 0x01, "Disconnect" },
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{ 0x02, "Put" },
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{ 0x03, "Get"},
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{ 0x05, "Set Path" },
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{ 0x10, "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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{ 0x7F, "Abort" },
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{ 0, NULL }
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};
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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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{ 0xC4, "Time" },
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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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static void defragment_init(void)
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{
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if( fragment_table == NULL)
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{
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fragment_table_init(&fragment_table);
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reassembled_table_init(&reassembled_table);
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}
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}
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static int is_ascii_str(const guint8 *str, int length)
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{
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int i;
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if( (length < 1) || (str[length-1] != '\0') )
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return 0;
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for(i=0; i<length-1; i++)
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{
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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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if(i<(length-1))
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return 0;
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return 1;
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}
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static int display_unicode_string(tvbuff_t *tvb, proto_tree *tree, int offset, char **data)
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{
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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 ((character = 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))
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{
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*str = '\0';
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}
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proto_tree_add_string(tree, hf_hdr_val_unicode, tvb, offset, len, str);
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if (data)
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*data = str;
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return offset+len;
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}
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static int
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dissect_headers(proto_tree *tree, tvbuff_t *tvb, int offset, packet_info *pinfo)
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{
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proto_tree *hdrs_tree=NULL;
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proto_item *hdrs=NULL;
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proto_tree *hdr_tree=NULL;
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proto_item *hdr=NULL;
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proto_item *handle_item;
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gint item_length = -1;
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guint8 hdr_id, i;
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const guint8 *ptr;
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if(tvb_length_remaining(tvb, offset)>0)
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{
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hdrs = proto_tree_add_text(tree, tvb, offset, item_length, "Headers");
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hdrs_tree=proto_item_add_subtree(hdrs, ett_btobex_hdrs);
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}
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else
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{
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return offset;
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}
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while(tvb_length_remaining(tvb, offset)>0)
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{
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hdr_id = tvb_get_guint8(tvb, offset);
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switch(0xC0 & hdr_id)
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{
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case 0x00:
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item_length = tvb_get_ntohs(tvb, offset+1);
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break;
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case 0x40: /* byte sequence */
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item_length = tvb_get_ntohs(tvb, offset+1);
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break;
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case 0x80: /* 1 byte */
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item_length = 2;
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break;
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case 0xc0: /* 4 bytes */
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item_length = 5;
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break;
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}
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hdr = proto_tree_add_text(hdrs_tree, tvb, offset, item_length, "%s", val_to_str(hdr_id, header_id_vals, "Unknown"));
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hdr_tree=proto_item_add_subtree(hdr, ett_btobex_hdr);
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proto_tree_add_item(hdr_tree, hf_hdr_id, tvb, offset, 1, FALSE);
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offset++;
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switch(0xC0 & hdr_id)
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{
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||||
case 0x00: /* null terminated unicode */
|
||||
{
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char *str;
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proto_tree_add_item(hdr_tree, hf_hdr_length, tvb, offset, 2, FALSE);
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offset += 2;
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if( (item_length - 3) > 0 )
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{
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display_unicode_string(tvb, hdr_tree, offset, &str);
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proto_item_append_text(hdr_tree, " (\"%s\")", str);
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||||
if (check_col(pinfo->cinfo, COL_INFO)) {
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col_append_fstr(pinfo->cinfo, COL_INFO, " \"%s\"", str);
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||||
}
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||||
}
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||||
else
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||||
{
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proto_item_append_text(hdr_tree, " (\"\")", str);
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||||
if (check_col(pinfo->cinfo, COL_INFO)) {
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col_append_fstr(pinfo->cinfo, COL_INFO, " \"\"");
|
||||
}
|
||||
}
|
||||
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||||
offset += item_length - 3;
|
||||
}
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||||
break;
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||||
case 0x40: /* byte sequence */
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||||
proto_tree_add_item(hdr_tree, hf_hdr_length, tvb, offset, 2, FALSE);
|
||||
offset += 2;
|
||||
|
||||
handle_item = proto_tree_add_item(hdr_tree, hf_hdr_val_byte_seq, tvb, offset, item_length - 3, FALSE);
|
||||
|
||||
if( ((hdr_id == 0x46) || (hdr_id == 0x4a)) && (item_length == 19) ) /* target or who */
|
||||
{
|
||||
ptr = tvb_get_ptr(tvb, offset, item_length - 3);
|
||||
for( i=0; target_vals[i].strptr != NULL; i++)
|
||||
{
|
||||
if( memcmp(ptr, 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);
|
||||
|
||||
if (check_col(pinfo->cinfo, COL_INFO)) {
|
||||
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(tvb, offset, -1, -1);
|
||||
|
||||
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_ptr(tvb, offset,item_length - 3));
|
||||
|
||||
if (check_col(pinfo->cinfo, COL_INFO)) {
|
||||
col_append_fstr(pinfo->cinfo, COL_INFO, " \"%s\"", tvb_get_ptr(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, FALSE);
|
||||
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, FALSE);
|
||||
offset += 4;
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return offset;
|
||||
}
|
||||
|
||||
static void
|
||||
dissect_btobex(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
||||
{
|
||||
proto_item *ti;
|
||||
proto_tree *st;
|
||||
guint8 code;
|
||||
proto_tree *msg_tree=NULL;
|
||||
proto_item *msg=NULL;
|
||||
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);
|
||||
|
||||
if(frag_msg != NULL) /* last fragment */
|
||||
complete = 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(tvb, offset, -1, -1);
|
||||
}
|
||||
|
||||
if( complete )
|
||||
{
|
||||
/* fully dissectable packet ready */
|
||||
|
||||
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
||||
col_set_str(pinfo->cinfo, COL_PROTOCOL, "OBEX");
|
||||
|
||||
ti = proto_tree_add_item(tree, proto_btobex, next_tvb, 0, -1, FALSE);
|
||||
st = proto_item_add_subtree(ti, ett_btobex);
|
||||
|
||||
/* op/response code */
|
||||
code = tvb_get_guint8(next_tvb, offset) & 0x7f;
|
||||
|
||||
if (check_col(pinfo->cinfo, COL_INFO)) {
|
||||
col_add_fstr(pinfo->cinfo, COL_INFO, "%s %s",
|
||||
pinfo->p2p_dir==P2P_DIR_SENT?"Sent":"Rcvd",
|
||||
val_to_str(code, code_vals, "Unknown"));
|
||||
}
|
||||
|
||||
if( (code < 0x10) || (code == 0x7f))
|
||||
{
|
||||
proto_tree_add_item(st, hf_opcode, next_tvb, offset, 1, FALSE);
|
||||
last_opcode[pinfo->p2p_dir] = code;
|
||||
}
|
||||
else
|
||||
{
|
||||
proto_tree_add_item(st, hf_response_code, next_tvb, offset, 1, FALSE);
|
||||
}
|
||||
proto_tree_add_item(st, hf_final_flag, next_tvb, offset, 1, FALSE);
|
||||
offset++;
|
||||
|
||||
/* length */
|
||||
proto_tree_add_item(st, hf_length, next_tvb, offset, 2, FALSE);
|
||||
offset += 2;
|
||||
|
||||
switch(code)
|
||||
{
|
||||
case 0: /* connect */
|
||||
proto_tree_add_item(st, hf_version, next_tvb, offset, 1, FALSE);
|
||||
offset++;
|
||||
|
||||
proto_tree_add_item(st, hf_flags, next_tvb, offset, 1, FALSE);
|
||||
offset++;
|
||||
|
||||
proto_tree_add_item(st, hf_max_pkt_len, next_tvb, offset, 2, FALSE);
|
||||
offset += 2;
|
||||
break;
|
||||
|
||||
case 2: /* put */
|
||||
case 3: /* get */
|
||||
if (check_col(pinfo->cinfo, COL_INFO)) {
|
||||
col_append_fstr(pinfo->cinfo, COL_INFO, " %s",
|
||||
(tvb_get_guint8(next_tvb, offset) & 0x80)==0x80?"final":"continue");
|
||||
}
|
||||
break;
|
||||
|
||||
case 5: /* set path */
|
||||
proto_tree_add_item(st, hf_flags, next_tvb, offset, 1, FALSE);
|
||||
proto_tree_add_item(st, hf_set_path_flags_0, next_tvb, offset, 1, FALSE);
|
||||
proto_tree_add_item(st, hf_set_path_flags_1, next_tvb, offset, 1, FALSE);
|
||||
offset++;
|
||||
|
||||
proto_tree_add_item(st, hf_constants, next_tvb, offset, 1, FALSE);
|
||||
offset++;
|
||||
break;
|
||||
|
||||
case 1: /* disconnect */
|
||||
case 127: /* abort */
|
||||
break;
|
||||
|
||||
default:
|
||||
{
|
||||
guint8 response_opcode = last_opcode[(pinfo->p2p_dir + 1) & 0x01];
|
||||
|
||||
if( response_opcode == 0 ) /* connect response */
|
||||
{
|
||||
proto_tree_add_item(st, hf_version, next_tvb, offset, 1, FALSE);
|
||||
offset++;
|
||||
|
||||
proto_tree_add_item(st, hf_flags, next_tvb, offset, 1, FALSE);
|
||||
offset++;
|
||||
|
||||
proto_tree_add_item(st, hf_max_pkt_len, next_tvb, offset, 2, FALSE);
|
||||
offset += 2;
|
||||
|
||||
pinfo->private_data = &proto_btobex;
|
||||
}
|
||||
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
offset = dissect_headers(st, next_tvb, offset, pinfo);
|
||||
}
|
||||
else
|
||||
{
|
||||
/* packet fragment */
|
||||
if (check_col(pinfo->cinfo, COL_INFO)) {
|
||||
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;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
proto_register_btobex(void)
|
||||
{
|
||||
static hf_register_info hf[] = {
|
||||
{&hf_opcode,
|
||||
{"Opcode", "btobex.opcode",
|
||||
FT_UINT8, BASE_HEX, VALS(code_vals), 0x7F,
|
||||
"Request Opcode", HFILL}
|
||||
},
|
||||
{&hf_response_code,
|
||||
{"Response Code", "btobex.resp_code",
|
||||
FT_UINT8, BASE_HEX, VALS(code_vals), 0x7F,
|
||||
"Response Code", HFILL}
|
||||
},
|
||||
{&hf_final_flag,
|
||||
{"Final Flag", "btobex.final_flag",
|
||||
FT_BOOLEAN, BASE_HEX, TFS(&true_false), 0x80,
|
||||
"Final Flag", HFILL}
|
||||
},
|
||||
{&hf_length,
|
||||
{"Packet Length", "btobex.pkt_len",
|
||||
FT_UINT16, BASE_DEC, NULL, 0,
|
||||
"Packet Length", HFILL}
|
||||
},
|
||||
{&hf_version,
|
||||
{"Version", "btobex.version",
|
||||
FT_UINT8, BASE_HEX, VALS(version_vals), 0x00,
|
||||
"Obex Version", HFILL}
|
||||
},
|
||||
{&hf_flags,
|
||||
{"Flags", "btobex.flags",
|
||||
FT_UINT8, BASE_HEX, NULL, 0x00,
|
||||
"Flags", HFILL}
|
||||
},
|
||||
{&hf_constants,
|
||||
{"Constants", "btobex.constants",
|
||||
FT_UINT8, BASE_HEX, NULL, 0x00,
|
||||
"Constants", HFILL}
|
||||
},
|
||||
{&hf_max_pkt_len,
|
||||
{"Max. Packet Length", "btobex.max_pkt_len",
|
||||
FT_UINT16, BASE_DEC, NULL, 0,
|
||||
"Maximum Packet Length", HFILL}
|
||||
},
|
||||
{&hf_set_path_flags_0,
|
||||
{"Go back one folder (../) first", "btobex.set_path_flags_0",
|
||||
FT_BOOLEAN, 8, TFS(&true_false), 0x01,
|
||||
"Go back one folder (../) first", HFILL}
|
||||
},
|
||||
{&hf_set_path_flags_1,
|
||||
{"Do not create folder, if not existing", "btobex.set_path_flags_1",
|
||||
FT_BOOLEAN, 8, TFS(&true_false), 0x02,
|
||||
"Do not create folder, if not existing", HFILL}
|
||||
},
|
||||
{&hf_hdr_id,
|
||||
{"Header Id", "btobex.hdr_id",
|
||||
FT_UINT8, BASE_HEX, VALS(header_id_vals), 0x00,
|
||||
"Header Id", 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}
|
||||
},
|
||||
{&hf_data,
|
||||
{"Obex Data", "btobex.data",
|
||||
FT_NONE, BASE_NONE, NULL, 0,
|
||||
"Obex Data", 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,
|
||||
{ "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", "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));
|
||||
|
||||
defragment_init();
|
||||
}
|
||||
|
||||
void
|
||||
proto_reg_handoff_btobex(void)
|
||||
{
|
||||
xml_handle = find_dissector("xml");
|
||||
data_handle = find_dissector("data");
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue