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wireshark/epan/dissectors/packet-packetlogger.c

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/* packet-packetlogger.c
* Routines for Apple's PacketLogger Types
*
* Copyright 2009, Stig Bjorlykke <stig@bjorlykke.org>
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include <epan/packet.h>
#include <wiretap/wtap.h>
#include "packet-bluetooth.h"
void proto_register_packetlogger(void);
void proto_reg_handoff_packetlogger(void);
#define PNAME "PacketLogger"
#define PSNAME "PKTLOG"
#define PFNAME "packetlogger"
static int proto_packetlogger = -1;
static int hf_type = -1;
static int hf_info = -1;
static gint ett_packetlogger = -1;
static dissector_handle_t packetlogger_handle;
static dissector_table_t hci_h1_table;
#define PKT_HCI_COMMAND 0x00
#define PKT_HCI_EVENT 0x01
#define PKT_SENT_ACL_DATA 0x02
#define PKT_RECV_ACL_DATA 0x03
#define PKT_LMP_SEND 0x0A
#define PKT_LMP_RECV 0x0B
#define PKT_KERNEL 0xF8
#define PKT_KERNEL_DEBUG 0xF9
#define PKT_ERROR 0xFA
#define PKT_POWER 0xFB
#define PKT_NOTE 0xFC
#define PKT_NEW_CONTROLLER 0xFE
static const value_string type_vals[] = {
{ PKT_HCI_COMMAND, "HCI Command" },
{ PKT_HCI_EVENT, "HCI Event" },
{ PKT_SENT_ACL_DATA, "Sent ACL Data" },
{ PKT_RECV_ACL_DATA, "Recv ACL Data" },
{ PKT_LMP_SEND, "Sent LMP Data" },
{ PKT_LMP_RECV, "Recv LMP Data" },
{ PKT_KERNEL, "Kernel" },
{ PKT_KERNEL_DEBUG, "Kernel Debug" },
{ PKT_ERROR, "Error" },
{ PKT_POWER, "Power" },
{ PKT_NOTE, "Note" },
{ PKT_NEW_CONTROLLER, "New Controller" },
{ 0, NULL }
};
static int dissect_packetlogger(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree, void *data)
{
proto_tree *packetlogger_tree = NULL;
tvbuff_t *next_tvb;
proto_item *ti = NULL;
guint8 pl_type;
gint len;
bluetooth_data_t *bluetooth_data;
struct bthci_phdr bthci;
bluetooth_data = (bluetooth_data_t *) data;
col_set_str (pinfo->cinfo, COL_PROTOCOL, PSNAME);
col_clear (pinfo->cinfo, COL_INFO);
ti = proto_tree_add_item (tree, proto_packetlogger, tvb, 0, -1, ENC_NA);
packetlogger_tree = proto_item_add_subtree (ti, ett_packetlogger);
pl_type = tvb_get_guint8 (tvb, 0);
proto_tree_add_item (packetlogger_tree, hf_type, tvb, 0, 1, ENC_BIG_ENDIAN);
proto_item_append_text (ti, " %s", val_to_str (pl_type, type_vals, "Unknown 0x%02x"));
len = tvb_reported_length_remaining (tvb, 1);
next_tvb = tvb_new_subset_remaining (tvb, 1);
if (pl_type <= PKT_RECV_ACL_DATA) {
/* HCI H1 packages */
switch (pl_type) {
case PKT_HCI_COMMAND:
bthci.channel = BTHCI_CHANNEL_COMMAND;
bthci.sent = P2P_DIR_SENT;
pinfo->p2p_dir = P2P_DIR_SENT;
break;
case PKT_HCI_EVENT:
bthci.channel = BTHCI_CHANNEL_EVENT;
bthci.sent = P2P_DIR_RECV;
pinfo->p2p_dir = P2P_DIR_RECV;
break;
case PKT_SENT_ACL_DATA:
bthci.channel = BTHCI_CHANNEL_ACL;
bthci.sent = P2P_DIR_SENT;
pinfo->p2p_dir = P2P_DIR_SENT;
break;
case PKT_RECV_ACL_DATA:
bthci.channel = BTHCI_CHANNEL_ACL;
bthci.sent = P2P_DIR_RECV;
pinfo->p2p_dir = P2P_DIR_RECV;
break;
default:
bthci.channel = pl_type;
bthci.sent = P2P_DIR_UNKNOWN;
pinfo->p2p_dir = P2P_DIR_UNKNOWN;
break;
}
bluetooth_data->previous_protocol_data.bthci = &bthci;
proto_item_set_len (ti, 1);
col_add_fstr (pinfo->cinfo, COL_INFO, "%s", val_to_str(pl_type, type_vals, "Unknown 0x%02x"));
if (!dissector_try_uint_new(hci_h1_table, bthci.channel,
next_tvb, pinfo, tree, TRUE, bluetooth_data)) {
call_data_dissector(next_tvb, pinfo, tree);
}
} else {
/* PacketLogger data */
switch (pl_type) {
case PKT_KERNEL:
case PKT_KERNEL_DEBUG:
case PKT_ERROR:
case PKT_POWER:
case PKT_NOTE:
case PKT_NEW_CONTROLLER:
proto_tree_add_item (packetlogger_tree, hf_info, next_tvb, 0, len, ENC_ASCII|ENC_NA);
col_add_fstr (pinfo->cinfo, COL_INFO, "%s", tvb_format_stringzpad_wsp (next_tvb, 0, len));
break;
default:
call_data_dissector(next_tvb, pinfo, tree);
col_add_fstr (pinfo->cinfo, COL_INFO, "Unknown 0x%02x", pl_type);
break;
}
}
return tvb_captured_length(tvb);
}
void proto_register_packetlogger (void)
{
static hf_register_info hf[] = {
{ &hf_type,
{ "Type", "packetlogger.type", FT_UINT8, BASE_HEX, VALS(type_vals), 0x0, NULL, HFILL } },
{ &hf_info,
{ "Info", "packetlogger.info", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
};
static gint *ett[] = {
&ett_packetlogger
};
proto_packetlogger = proto_register_protocol (PNAME, PSNAME, PFNAME);
packetlogger_handle = register_dissector (PFNAME, dissect_packetlogger, proto_packetlogger);
proto_register_field_array (proto_packetlogger, hf, array_length (hf));
proto_register_subtree_array (ett, array_length (ett));
}
void proto_reg_handoff_packetlogger (void)
{
hci_h1_table = find_dissector_table("hci_h1.type");
dissector_add_uint ("bluetooth.encap", WTAP_ENCAP_PACKETLOGGER, packetlogger_handle);
}
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
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