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/* packet-btmesh.h
* Structures for determining the dissection context for Bluetooth mesh.
*
* Copyright 2019, Piotr Winiarczyk <wino45@gmail.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __PACKET_BTMESH_H__
#define __PACKET_BTMESH_H__
#include <epan/packet.h>
#define BTMESH_NONCE_TYPE_NETWORK 0x00
#define BTMESH_NONCE_TYPE_APPLICATION 0x01
#define BTMESH_NONCE_TYPE_DEVICE 0x02
#define BTMESH_NONCE_TYPE_PROXY 0x03
#define BTMESH_ADDRESS_UNASSIGNED 0x00
#define BTMESH_ADDRESS_UNICAST 0x01
#define BTMESH_ADDRESS_VIRTUAL 0x02
#define BTMESH_ADDRESS_GROUP 0x03
typedef enum {
E_BTMESH_TR_UNKNOWN = 0,
E_BTMESH_TR_ADV,
E_BTMESH_TR_PB_ADV,
E_BTMESH_TR_PROXY
} btle_mesh_tr_t;
typedef enum {
E_BTMESH_PROXY_SIDE_UNKNOWN = 0,
E_BTMESH_PROXY_SIDE_SERVER,
E_BTMESH_PROXY_SIDE_CLIENT,
E_BTMESH_PROXY_SIDE_LAST
} btle_mesh_proxy_side_t;
typedef struct {
btle_mesh_tr_t transport;
gboolean fragmented;
guint segment_index;
} btle_mesh_transport_ctx_t;
typedef struct {
guint32 interface_id;
guint32 adapter_id;
guint16 chandle;
guint16 bt_uuid;
guint32 access_address;
btle_mesh_proxy_side_t proxy_side;
} btle_mesh_proxy_ctx_t;
typedef struct {
/* Network Layer */
guint32 src;
guint32 seq;
guint8 seq_src_buf[5];
guint8 ivindex_buf[4];
guint8 net_nonce_type;
guint32 net_key_iv_index_hash;
/* Transport layer */
guint32 dst;
guint8 dst_buf[2];
gint32 label_uuid_idx;
guint32 seg; /* Segmentation */
guint8 aid;
guint8 app_nonce_type;
guint32 seqzero;
int transmic_size;
} network_decryption_ctx_t;
tvbuff_t *btmesh_network_find_key_and_decrypt(tvbuff_t *tvb, packet_info *pinfo, guint8 **decrypted_data, int *enc_data_len, network_decryption_ctx_t *dec_ctx);
#endif /* __PACKET_BTMESH_H__ */
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 4
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* vi: set shiftwidth=4 tabstop=8 expandtab:
* :indentSize=4:tabSize=8:noTabs=true:
*/
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