epan/dissectors/packet-bthci_sco.c

   1 /* packet-bthci_sco.c
   2  * Routines for the Bluetooth SCO dissection
   3  * Copyright 2002, Christoph Scholz <scholz@cs.uni-bonn.de>
   4  *
   5  * Refactored for wireshark checkin
   6  *   Ronnie Sahlberg 2006
   7  *
   8  * $Id$
   9  *
  10  * Wireshark - Network traffic analyzer
  11  * By Gerald Combs <gerald@wireshark.org>
  12  * Copyright 1998 Gerald Combs
  13  *
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License
  16  * as published by the Free Software Foundation; either version 2
  17  * of the License, or (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  27  */
  28
  29 #include "config.h"
  30
  31 #include <epan/packet.h>
  32
  33 #include "packet-bluetooth-hci.h"
  34
  35 /* Initialize the protocol and registered fields */
  36 static int proto_bthci_sco = -1;
  37 static int hf_bthci_sco_chandle = -1;
  38 static int hf_bthci_sco_length = -1;
  39 static int hf_bthci_sco_data = -1;
  40
  41 /* Initialize the subtree pointers */
  42 static gint ett_bthci_sco = -1;
  43
  44 void proto_register_bthci_sco(void);
  45 void proto_reg_handoff_bthci_sco(void);
  46
  47 /* Code to actually dissect the packets */
  48 static gint
  49 dissect_bthci_sco(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
  50 {
  51     proto_item *ti;
  52     proto_tree *bthci_sco_tree;
  53     gint        offset = 0;
  54
  55     ti = proto_tree_add_item(tree, proto_bthci_sco, tvb, offset, -1, ENC_NA);
  56     bthci_sco_tree = proto_item_add_subtree(ti, ett_bthci_sco);
  57
  58     switch (pinfo->p2p_dir) {
  59         case P2P_DIR_SENT:
  60             col_set_str(pinfo->cinfo, COL_INFO, "Sent ");
  61             break;
  62         case P2P_DIR_RECV:
  63             col_set_str(pinfo->cinfo, COL_INFO, "Rcvd ");
  64             break;
  65         default:
  66             col_add_fstr(pinfo->cinfo, COL_INFO, "Unknown direction %d ",
  67                 pinfo->p2p_dir);
  68             break;
  69     }
  70
  71     proto_tree_add_item(bthci_sco_tree, hf_bthci_sco_chandle, tvb, offset, 2, ENC_LITTLE_ENDIAN);
  72     offset += 2;
  73
  74     proto_tree_add_item(bthci_sco_tree, hf_bthci_sco_length, tvb, offset, 1, ENC_LITTLE_ENDIAN);
  75     offset++;
  76
  77     proto_tree_add_item(bthci_sco_tree, hf_bthci_sco_data, tvb, offset, -1, ENC_NA);
  78
  79     return tvb_length(tvb);
  80 }
  81
  82
  83 void
  84 proto_register_bthci_sco(void)
  85 {
  86     static hf_register_info hf[] = {
  87         { &hf_bthci_sco_chandle,
  88             { "Connection Handle",           "bthci_sco.chandle",
  89             FT_UINT16, BASE_HEX, NULL, 0x0FFF,
  90             NULL, HFILL }
  91         },
  92         { &hf_bthci_sco_length,
  93             { "Data Total Length",           "bthci_sco.length",
  94             FT_UINT8, BASE_DEC, NULL, 0x0,
  95             NULL, HFILL }
  96         },
  97         { &hf_bthci_sco_data,
  98             { "Data",                        "bthci_sco.data",
  99             FT_NONE, BASE_NONE, NULL, 0x0,
 100             NULL, HFILL }
 101         },
 102     };
 103
 104     /* Setup protocol subtree array */
 105     static gint *ett[] = {
 106       &ett_bthci_sco
 107     };
 108
 109     /* Register the protocol name and description */
 110     proto_bthci_sco = proto_register_protocol("Bluetooth HCI SCO Packet", "HCI_SCO", "bthci_sco");
 111     new_register_dissector("bthci_sco", dissect_bthci_sco, proto_bthci_sco);
 112
 113     /* Required function calls to register the header fields and subtrees used */
 114     proto_register_field_array(proto_bthci_sco, hf, array_length(hf));
 115     proto_register_subtree_array(ett, array_length(ett));
 116 }
 117
 118
 119 void
 120 proto_reg_handoff_bthci_sco(void)
 121 {
 122     dissector_handle_t bthci_sco_handle;
 123
 124     bthci_sco_handle = find_dissector("bthci_sco");
 125     dissector_add_uint("hci_h4.type", HCI_H4_TYPE_SCO, bthci_sco_handle);
 126     dissector_add_uint("hci_h1.type", BTHCI_CHANNEL_SCO, bthci_sco_handle);
 127 }
 128
 129 /*
 130  * Editor modelines  -  http://www.wireshark.org/tools/modelines.html
 131  *
 132  * Local variables:
 133  * c-basic-offset: 4
 134  * tab-width: 8
 135  * indent-tabs-mode: nil
 136  * End:
 137  *
 138  * vi: set shiftwidth=4 tabstop=8 expandtab:
 139  * :indentSize=4:tabSize=8:noTabs=true:
 140  */