diff options
| author | krj <krj@f5534014-38df-0310-8fa8-9805f1628bb7> | 2010-05-18 07:32:04 +0000 |
|---|---|---|
| committer | krj <krj@f5534014-38df-0310-8fa8-9805f1628bb7> | 2010-05-18 07:32:04 +0000 |
| commit | 5d3656d4214de29d4771eac5e3daab1f0ed79e99 (patch) | |
| tree | 0a305975f36a982f0e72c1911ebba06d91105c13 /epan/dissectors/packet-btobex.c | |
| parent | 6fb012b06458981ca638bebb91b42c8dba38fbf0 (diff) | |
From Allan M. Madsen:
Initial implementation of Bluetooth OBEX dissector. Work in progress.
git-svn-id: http://anonsvn.wireshark.org/wireshark/trunk@32862 f5534014-38df-0310-8fa8-9805f1628bb7
Diffstat (limited to 'epan/dissectors/packet-btobex.c')
| -rw-r--r-- | epan/dissectors/packet-btobex.c | 765 |
1 files changed, 765 insertions, 0 deletions
diff --git a/epan/dissectors/packet-btobex.c b/epan/dissectors/packet-btobex.c new file mode 100644 index 0000000000..492098edc8 --- /dev/null +++ b/epan/dissectors/packet-btobex.c @@ -0,0 +1,765 @@ +/* packet-btobex.c
+ * Routines for the Bluetooth OBEX dissection
+ *
+ * Allan M. Madsen 2010
+ *
+ * $Id: packet-btobex.c 32860 2010-05-18 06:09:52Z krj $
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <glib.h>
+#include <string.h>
+
+#include <epan/packet.h>
+#include <epan/value_string.h>
+#include <epan/emem.h>
+#include <epan/reassemble.h>
+#include <packet-btl2cap.h>
+
+/* Initialize the protocol and registered fields */
+static int proto_btobex = -1;
+static int hf_opcode = -1;
+static int hf_response_code = -1;
+static int hf_final_flag = -1;
+static int hf_length = -1;
+static int hf_version = -1;
+static int hf_flags = -1;
+static int hf_constants = -1;
+static int hf_max_pkt_len = -1;
+static int hf_set_path_flags_0 = -1;
+static int hf_set_path_flags_1 = -1;
+static int hf_hdr_id = -1;
+static int hf_hdr_length = -1;
+static int hf_hdr_val_unicode = -1;
+static int hf_hdr_val_byte_seq = -1;
+static int hf_hdr_val_byte = -1;
+static int hf_hdr_val_long = -1;
+static int hf_data = -1;
+
+/* ************************************************************************* */
+/* Header values for reassembly */
+/* ************************************************************************* */
+static int hf_btobex_fragments = -1;
+static int hf_btobex_fragment = -1;
+static int hf_btobex_fragment_overlap = -1;
+static int hf_btobex_fragment_overlap_conflict = -1;
+static int hf_btobex_fragment_multiple_tails = -1;
+static int hf_btobex_fragment_too_long_fragment = -1;
+static int hf_btobex_fragment_error = -1;
+static int hf_btobex_reassembled_in = -1;
+static int hf_btobex_reassembled_length = -1;
+static gint ett_btobex_fragment = -1;
+static gint ett_btobex_fragments = -1;
+
+static GHashTable *fragment_table = NULL;
+static GHashTable *reassembled_table = NULL;
+
+static const fragment_items btobex_frag_items = {
+ &ett_btobex_fragment,
+ &ett_btobex_fragments,
+ &hf_btobex_fragments,
+ &hf_btobex_fragment,
+ &hf_btobex_fragment_overlap,
+ &hf_btobex_fragment_overlap_conflict,
+ &hf_btobex_fragment_multiple_tails,
+ &hf_btobex_fragment_too_long_fragment,
+ &hf_btobex_fragment_error,
+ &hf_btobex_reassembled_in,
+ &hf_btobex_reassembled_length,
+ "fragments"
+};
+
+/* Initialize the subtree pointers */
+static gint ett_btobex = -1;
+static gint ett_btobex_hdrs = -1;
+static gint ett_btobex_hdr = -1;
+
+static guint8 last_opcode[2] = {1,1};
+static dissector_handle_t xml_handle=NULL;
+static dissector_handle_t data_handle=NULL;
+
+typedef struct _ext_value_string {
+ guint8 value[16];
+ const gchar *strptr;
+} ext_value_string;
+
+static const ext_value_string target_vals[] = {
+ { 0xF9, 0xEC, 0x7B, 0xC4, 0x95, 0x3C, 0x11, 0xD2, 0x98, 0x4E, 0x52, 0x54, 0x00, 0xDC, 0x9E, 0x09, "Folder Browsing" },
+ { 0x79, 0x61, 0x35, 0xf0, 0xf0, 0xc5, 0x11, 0xd8, 0x09, 0x66, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66, "Phone Book Access" },
+ { 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0x02, 0xEE, 0x00, 0x00, 0x02, "SyncML" },
+ { 0xE3, 0x3D, 0x95, 0x45, 0x83, 0x74, 0x4A, 0xD7, 0x9E, 0xC5, 0xC1, 0x6B, 0xE3, 0x1E, 0xDE, 0x8E, "Basic Imaging Push" },
+ { 0x8E, 0xE9, 0xB3, 0xD0, 0x46, 0x08, 0x11, 0xD5, 0x84, 0x1A, 0x00, 0x02, 0xA5, 0x32, 0x5B, 0x4E, "Basic Imaging Pull" },
+ { 0x92, 0x35, 0x33, 0x50, 0x46, 0x08, 0x11, 0xD5, 0x84, 0x1A, 0x00, 0x02, 0xA5, 0x32, 0x5B, 0x4E, "Basic Imaging Advanced Printing" },
+ { 0x94, 0x01, 0x26, 0xC0, 0x46, 0x08, 0x11, 0xD5, 0x84, 0x1A, 0x00, 0x02, 0xA5, 0x32, 0x5B, 0x4E, "Basic Imaging Automativ Archive" },
+ { 0x94, 0x7E, 0x74, 0x20, 0x46, 0x08, 0x11, 0xD5, 0x84, 0x1A, 0x00, 0x02, 0xA5, 0x32, 0x5B, 0x4E, "Basic Imaging Remote Camera" },
+ { 0x94, 0xC7, 0xCD, 0x20, 0x46, 0x08, 0x11, 0xD5, 0x84, 0x1A, 0x00, 0x02, 0xA5, 0x32, 0x5B, 0x4E, "Basic Imaging Remote Display" },
+ { 0x8E, 0x61, 0xF9, 0x5D, 0x1A, 0x79, 0x11, 0xD4, 0x8E, 0xA4, 0x00, 0x80, 0x5F, 0x9B, 0x98, 0x34, "Basic Imaging Referenced Objects" },
+ { 0x8E, 0x61, 0xF9, 0x5D, 0x1A, 0x79, 0x11, 0xD4, 0x8E, 0xA4, 0x00, 0x80, 0x5F, 0x9B, 0x98, 0x34, "Basic Imaging Archived Objects" },
+ { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, NULL },
+};
+
+static const value_string version_vals[] = {
+ { 0x10, "1.0" },
+ { 0x11, "1.1" },
+ { 0x12, "1.2" },
+ { 0x13, "1.3" },
+ { 0x20, "2.0" },
+ { 0x21, "2.1" },
+ { 0, NULL }
+};
+
+static const true_false_string true_false = {
+ "True",
+ "False"
+};
+
+static const value_string code_vals[] = {
+ { 0x00, "Connect" },
+ { 0x01, "Disconnect" },
+ { 0x02, "Put" },
+ { 0x03, "Get"},
+ { 0x05, "Set Path" },
+ { 0x10, "Continue" },
+ { 0x20, "Success" },
+ { 0x21, "Created" },
+ { 0x22, "Accepted" },
+ { 0x23, "Non-Authoritative Information" },
+ { 0x24, "No Content" },
+ { 0x25, "Reset Content" },
+ { 0x26, "Partial Content" },
+ { 0x30, "Multiple Choices" },
+ { 0x31, "Moved Permanently" },
+ { 0x32, "Moved Temporarily" },
+ { 0x33, "See Other" },
+ { 0x34, "Not Modified" },
+ { 0x35, "Use Proxy" },
+ { 0x40, "Bad Request" },
+ { 0x41, "Unauthorised" },
+ { 0x42, "Payment Required" },
+ { 0x43, "Forbidden" },
+ { 0x44, "Not Found" },
+ { 0x45, "Method Not Allowed" },
+ { 0x46, "Not Acceptable" },
+ { 0x47, "Proxy Authentication Required" },
+ { 0x48, "Request Timeout" },
+ { 0x49, "Conflict" },
+ { 0x4a, "Gone" },
+ { 0x4b, "Length Required" },
+ { 0x4c, "Precondition Failed" },
+ { 0x4d, "Requested Entity Too Large" },
+ { 0x4e, "Requested URL Too Large" },
+ { 0x4f, "Unsupported Media Type" },
+ { 0x50, "Internal Server Error" },
+ { 0x51, "Not Implemented" },
+ { 0x52, "Bad Gateway" },
+ { 0x53, "Service Unavailable" },
+ { 0x54, "Gateway Timeout" },
+ { 0x55, "HTTP Version Not Supported" },
+ { 0x60, "Database Full" },
+ { 0x61, "Database Locked" },
+ { 0x7F, "Abort" },
+ { 0, NULL }
+};
+
+static const value_string header_id_vals[] = {
+ { 0x01, "Name" },
+ { 0x05, "Description" },
+ { 0x42, "Type" },
+ { 0x44, "Time (ISO8601)" },
+ { 0x46, "Target" },
+ { 0x47, "HTTP" },
+ { 0x48, "Body" },
+ { 0x49, "End Of Body" },
+ { 0x4a, "Who" },
+ { 0x4c, "App. Parameters" },
+ { 0x4d, "Auth. Challenge" },
+ { 0x4e, "Auth. Response" },
+ { 0x4f, "Object Class" },
+ { 0xc0, "Count" },
+ { 0xc3, "Length" },
+ { 0xC4, "Time" },
+ { 0xcb, "Connection Id" },
+ { 0x30, "User Defined" },
+ { 0x31, "User Defined" },
+ { 0x32, "User Defined" },
+ { 0x33, "User Defined" },
+ { 0x34, "User Defined" },
+ { 0x35, "User Defined" },
+ { 0x36, "User Defined" },
+ { 0x37, "User Defined" },
+ { 0x38, "User Defined" },
+ { 0x39, "User Defined" },
+ { 0x3a, "User Defined" },
+ { 0x3b, "User Defined" },
+ { 0x3c, "User Defined" },
+ { 0x3d, "User Defined" },
+ { 0x3e, "User Defined" },
+ { 0x3f, "User Defined" },
+ { 0, NULL }
+};
+
+static void defragment_init(void)
+{
+ if( fragment_table == NULL)
+ {
+ fragment_table_init(&fragment_table);
+ reassembled_table_init(&reassembled_table);
+ }
+}
+
+static int is_ascii_str(const guint8 *str, int length)
+{
+ int i;
+
+ if( (length < 1) || (str[length-1] != '\0') )
+ return 0;
+
+ for(i=0; i<length-1; i++)
+ {
+ if( (str[i] < 0x20) && (str[i] != 0x0a) ) /* not strict ascii */
+ break;
+ }
+
+ if(i<(length-1))
+ return 0;
+
+ return 1;
+}
+
+static int display_unicode_string(tvbuff_t *tvb, proto_tree *tree, int offset, char **data)
+{
+ char *str, *p;
+ int len;
+ int charoffset;
+ guint16 character;
+
+ /* display a unicode string from the tree and return new offset */
+ /*
+ * Get the length of the string.
+ */
+ len = 0;
+ while ((character = tvb_get_ntohs(tvb, offset + len)) != '\0')
+ len += 2;
+ len += 2; /* count the '\0' too */
+
+ /*
+ * Allocate a buffer for the string; "len" is the length in
+ * bytes, not the length in characters.
+ */
+ str = ep_alloc(len/2);
+
+ /* - this assumes the string is just ISO 8859-1 */
+ charoffset = offset;
+ p = str;
+ while ((character = tvb_get_ntohs(tvb, charoffset)) != '\0') {
+ *p++ = (char) character;
+ charoffset += 2;
+ }
+ *p = '\0';
+
+ 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;
+}
+
+
+static int
+dissect_headers(proto_tree *tree, tvbuff_t *tvb, int offset, packet_info *pinfo)
+{
+ proto_tree *hdrs_tree=NULL;
+ proto_item *hdrs=NULL;
+ proto_tree *hdr_tree=NULL;
+ proto_item *hdr=NULL;
+ proto_item *handle_item;
+ gint item_length = -1;
+ guint8 hdr_id, i;
+ const guint8 *ptr;
+
+ if(tvb_length_remaining(tvb, offset)>0)
+ {
+ 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:
+ 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(hdr_id, header_id_vals, "Unknown"));
+ hdr_tree=proto_item_add_subtree(hdr, ett_btobex_hdr);
+
+ proto_tree_add_item(hdr_tree, hf_hdr_id, tvb, offset, 1, FALSE);
+
+ offset++;
+
+ switch(0xC0 & hdr_id)
+ {
+ case 0x00: /* null terminated unicode */
+ {
+ char *str;
+
+ proto_tree_add_item(hdr_tree, hf_hdr_length, tvb, offset, 2, FALSE);
+ offset += 2;
+
+ if( (item_length - 3) > 0 )
+ {
+ display_unicode_string(tvb, hdr_tree, offset, &str);
+
+ proto_item_append_text(hdr_tree, " (\"%s\")", str);
+
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_append_fstr(pinfo->cinfo, COL_INFO, " \"%s\"", str);
+ }
+ }
+ else
+ {
+ proto_item_append_text(hdr_tree, " (\"\")", str);
+
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_append_fstr(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, 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");
+}
+
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