epan/dissectors/packet-btmesh.h

   1 /* packet-btmesh.h
   2  * Structures for determining the dissection context for Bluetooth mesh.
   3  *
   4  * Copyright 2019, Piotr Winiarczyk <wino45@gmail.com>
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * SPDX-License-Identifier: GPL-2.0-or-later
  11  */
  12 #ifndef __PACKET_BTMESH_H__
  13 #define __PACKET_BTMESH_H__
  14
  15 #include <epan/packet.h>
  16
  17 #define BTMESH_NONCE_TYPE_NETWORK     0x00
  18 #define BTMESH_NONCE_TYPE_APPLICATION 0x01
  19 #define BTMESH_NONCE_TYPE_DEVICE      0x02
  20 #define BTMESH_NONCE_TYPE_PROXY       0x03
  21
  22 #define BTMESH_ADDRESS_UNASSIGNED     0x00
  23 #define BTMESH_ADDRESS_UNICAST        0x01
  24 #define BTMESH_ADDRESS_VIRTUAL        0x02
  25 #define BTMESH_ADDRESS_GROUP          0x03
  26
  27 typedef enum {
  28     E_BTMESH_TR_UNKNOWN = 0,
  29     E_BTMESH_TR_ADV,
  30     E_BTMESH_TR_PB_ADV,
  31     E_BTMESH_TR_PROXY
  32 } btle_mesh_tr_t;
  33
  34 typedef enum {
  35     E_BTMESH_PROXY_SIDE_UNKNOWN = 0,
  36     E_BTMESH_PROXY_SIDE_SERVER,
  37     E_BTMESH_PROXY_SIDE_CLIENT,
  38     E_BTMESH_PROXY_SIDE_LAST
  39 } btle_mesh_proxy_side_t;
  40
  41 typedef struct {
  42     btle_mesh_tr_t transport;
  43     gboolean fragmented;
  44     guint segment_index;
  45 } btle_mesh_transport_ctx_t;
  46
  47 typedef struct {
  48     guint32 interface_id;
  49     guint32 adapter_id;
  50     guint16 chandle;
  51     guint16 bt_uuid;
  52     guint32 access_address;
  53     btle_mesh_proxy_side_t proxy_side;
  54 } btle_mesh_proxy_ctx_t;
  55
  56 typedef struct {
  57     /* Network Layer */
  58     guint32 src;
  59     guint32 seq;
  60     guint8 seq_src_buf[5];
  61     guint8 ivindex_buf[4];
  62     guint8 net_nonce_type;
  63     guint32 net_key_iv_index_hash;
  64
  65     /* Transport layer */
  66     guint32 dst;
  67     guint8 dst_buf[2];
  68     gint32 label_uuid_idx;
  69     guint32 seg; /* Segmentation */
  70     guint8 aid;
  71     guint8 app_nonce_type;
  72     guint32 seqzero;
  73     int transmic_size;
  74 } network_decryption_ctx_t;
  75
  76 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);
  77
  78 #endif /* __PACKET_BTMESH_H__ */
  79
  80 /*
  81  * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
  82  *
  83  * Local variables:
  84  * c-basic-offset: 4
  85  * tab-width: 8
  86  * indent-tabs-mode: nil
  87  * End:
  88  *
  89  * vi: set shiftwidth=4 tabstop=8 expandtab:
  90  * :indentSize=4:tabSize=8:noTabs=true:
  91  */