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wireshark/epan/dissectors/packet-btmesh-proxy.c

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/* packet-btmesh-proxy.c
* Routines for Bluetooth mesh Proxy PDU dissection
*
* 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
*
* Ref: Mesh Profile v1.0
* https://www.bluetooth.com/specifications/mesh-specifications
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/reassemble.h>
#include <epan/tvbuff-int.h>
#include <epan/expert.h>
#include <wsutil/wsgcrypt.h>
#include "packet-btmesh.h"
#define PROXY_COMPLETE_MESSAGE 0x00
#define PROXY_FIRST_SEGMENT 0x01
#define PROXY_CONTINUATION_SEGMENT 0x02
#define PROXY_LAST_SEGMENT 0x03
#define PROXY_PDU_NETWORK 0x00
#define PROXY_PDU_MESH_BEACON 0x01
#define PROXY_PDU_CONFIGURATION 0x02
#define PROXY_PDU_PROVISIONING 0x03
#define PROXY_SET_FILTER_TYPE 0x00
#define PROXY_ADD_ADDRESSES_TO_FILTER 0x01
#define PROXY_REMOVE_ADDRESSES_FROM_FILTER 0x02
#define PROXY_FILTER_STATUS 0x03
#define UNICAST_ADDRESS_MASK 0x8000
void proto_register_btmesh_proxy(void);
void proto_reg_handoff_btmesh_proxy(void);
static int proto_btmesh_proxy = -1;
static int hf_btmesh_proxy_type = -1;
static int hf_btmesh_proxy_sar = -1;
static int hf_btmesh_proxy_data = -1;
static int hf_btmesh_proxy_data_fragment = -1;
static int hf_btmesh_proxy_fragments = -1;
static int hf_btmesh_proxy_fragment = -1;
static int hf_btmesh_proxy_fragment_overlap = -1;
static int hf_btmesh_proxy_fragment_overlap_conflict = -1;
static int hf_btmesh_proxy_fragment_multiple_tails = -1;
static int hf_btmesh_proxy_fragment_too_long_fragment = -1;
static int hf_btmesh_proxy_fragment_error = -1;
static int hf_btmesh_proxy_fragment_count = -1;
static int hf_btmesh_proxy_reassembled_length = -1;
static int hf_btmesh_proxy_ivi = -1;
static int hf_btmesh_proxy_nid = -1;
static int hf_btmesh_proxy_ctl = -1;
static int hf_btmesh_proxy_ttl = -1;
static int hf_btmesh_proxy_seq = -1;
static int hf_btmesh_proxy_src = -1;
static int hf_btmesh_proxy_dst = -1;
static int hf_btmesh_proxy_transport_pdu = -1;
static int hf_btmesh_proxy_netmic = -1;
static int hf_btmesh_proxy_control_opcode = -1;
static int hf_btmesh_proxy_control_parameters = -1;
static int hf_btmesh_proxy_control_filter_type = -1;
static int hf_btmesh_proxy_control_list_size = -1;
static int hf_btmesh_proxy_control_list_item = -1;
static int ett_btmesh_proxy = -1;
static int ett_btmesh_proxy_network_pdu = -1;
static int ett_btmesh_proxy_transport_pdu = -1;
static int ett_btmesh_proxy_fragments = -1;
static int ett_btmesh_proxy_fragment = -1;
static expert_field ei_btmesh_proxy_unknown_opcode = EI_INIT;
static expert_field ei_btmesh_proxy_unknown_payload = EI_INIT;
static expert_field ei_btmesh_proxy_wrong_ctl = EI_INIT;
static expert_field ei_btmesh_proxy_wrong_ttl = EI_INIT;
static expert_field ei_btmesh_proxy_wrong_dst = EI_INIT;
static expert_field ei_btmesh_proxy_unknown_filter_type = EI_INIT;
static expert_field ei_btmesh_proxy_wrong_address_type = EI_INIT;
static dissector_handle_t btmesh_handle;
static dissector_handle_t btmesh_provisioning_handle;
static dissector_handle_t btmesh_beacon_handle;
static wmem_tree_t *connection_info_tree;
static wmem_allocator_t *pool;
static const value_string btmesh_proxy_type[] = {
{ 0, "Network PDU" },
{ 1, "Mesh Beacon" },
{ 2, "Proxy Configuration" },
{ 3, "Provisioning PDU" },
{ 0, NULL }
};
static const value_string btmesh_proxy_sar[] = {
{ 0, "Data field contains a complete message" },
{ 1, "Data field contains the first segment of a message" },
{ 2, "Data field contains a continuation segment of a message" },
{ 3, "Data field contains the last segment of a message" },
{ 0, NULL }
};
static const value_string btmesh_proxy_ctl_vals[] = {
{ 0, "Unknown Message" },
{ 1, "Proxy Message" },
{ 0, NULL }
};
static const value_string btmesh_proxy_control_opcode[] = {
{ 0, "Set Filter Type" },
{ 1, "Add Addresses To Filter" },
{ 2, "Remove Addresses From Filter" },
{ 3, "Filter Status" },
{ 0, NULL }
};
static const value_string btmesh_proxy_control_filter_type[] = {
{ 0, "White list filter" },
{ 1, "Black list filter" },
{ 0, NULL }
};
static const fragment_items btmesh_proxy_frag_items = {
&ett_btmesh_proxy_fragments,
&ett_btmesh_proxy_fragment,
&hf_btmesh_proxy_fragments,
&hf_btmesh_proxy_fragment,
&hf_btmesh_proxy_fragment_overlap,
&hf_btmesh_proxy_fragment_overlap_conflict,
&hf_btmesh_proxy_fragment_multiple_tails,
&hf_btmesh_proxy_fragment_too_long_fragment,
&hf_btmesh_proxy_fragment_error,
&hf_btmesh_proxy_fragment_count,
NULL,
&hf_btmesh_proxy_reassembled_length,
/* Reassembled data field */
NULL,
"fragments"
};
static reassembly_table proxy_reassembly_table;
static guint32 sequence_counter[E_BTMESH_PROXY_SIDE_LAST];
static guint32 fragment_counter[E_BTMESH_PROXY_SIDE_LAST];
static gboolean first_pass;
#if GCRYPT_VERSION_NUMBER >= 0x010600 /* 1.6.0 */
static gint
dissect_btmesh_proxy_configuration_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
gint32 enc_data_len = 0;
guint8 *decrypted_data = NULL;
tvbuff_t *de_obf_tvb;
tvbuff_t *de_cry_tvb;
proto_tree *sub_tree, *cntrl_sub_tree;
guint32 net_mic_size, seq, src, dst, opcode, ttl, bd_address;
guint32 filter_type, list_size;
guint32 offset = 0;
guint32 decry_off = 0;
network_decryption_ctx_t *dec_ctx;
proto_tree_add_item(tree, hf_btmesh_proxy_data, tvb, 0, tvb_reported_length(tvb), ENC_NA);
dec_ctx = wmem_new(pinfo->pool, network_decryption_ctx_t);
dec_ctx->net_nonce_type = BTMESH_NONCE_TYPE_PROXY;
de_obf_tvb = btmesh_network_find_key_and_decrypt(tvb, pinfo, &decrypted_data, &enc_data_len, dec_ctx);
if (de_obf_tvb) {
sub_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_btmesh_proxy_network_pdu, NULL, "Proxy Network PDU");
proto_tree_add_item(sub_tree, hf_btmesh_proxy_ivi, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sub_tree, hf_btmesh_proxy_nid, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
add_new_data_source(pinfo, de_obf_tvb, "Deobfuscated data");
/* CTL 1 bit Network Control*/
proto_tree_add_item_ret_uint(sub_tree, hf_btmesh_proxy_ctl, de_obf_tvb, 0, 1, ENC_BIG_ENDIAN, &net_mic_size);
if (net_mic_size != 1) {
proto_tree_add_expert(sub_tree, pinfo, &ei_btmesh_proxy_wrong_ctl, de_obf_tvb, 0, 1);
}
net_mic_size = (net_mic_size + 1) * 4;
/* The TTL field is a 7-bit field */
proto_tree_add_item_ret_uint(sub_tree, hf_btmesh_proxy_ttl, de_obf_tvb, 0, 1, ENC_BIG_ENDIAN, &ttl);
if (ttl != 0) {
proto_tree_add_expert(sub_tree, pinfo, &ei_btmesh_proxy_wrong_ttl, de_obf_tvb, 0, 1);
}
/* SEQ field is a 24-bit integer */
proto_tree_add_item_ret_uint(sub_tree, hf_btmesh_proxy_seq, de_obf_tvb, 1, 3, ENC_BIG_ENDIAN, &seq);
/* SRC field is a 16-bit value */
proto_tree_add_item_ret_uint(sub_tree, hf_btmesh_proxy_src, de_obf_tvb, 4, 2, ENC_BIG_ENDIAN, &src);
if (src & UNICAST_ADDRESS_MASK ) {
proto_tree_add_expert(sub_tree, pinfo, &ei_btmesh_proxy_wrong_address_type, de_obf_tvb, 4, 2);
}
offset += 6;
de_cry_tvb = tvb_new_child_real_data(tvb, decrypted_data, enc_data_len, enc_data_len);
add_new_data_source(pinfo, de_cry_tvb, "Decrypted data");
proto_tree_add_item_ret_uint(sub_tree, hf_btmesh_proxy_dst, de_cry_tvb, decry_off, 2, ENC_BIG_ENDIAN, &dst);
if (dst != 0) {
proto_tree_add_expert(sub_tree, pinfo, &ei_btmesh_proxy_wrong_dst, de_cry_tvb, decry_off, 2);
}
decry_off += 2;
/* TransportPDU */
proto_tree_add_item(sub_tree, hf_btmesh_proxy_transport_pdu, de_cry_tvb, decry_off, enc_data_len - 2, ENC_NA);
offset += enc_data_len;
proto_tree_add_item(sub_tree, hf_btmesh_proxy_netmic, tvb, offset, net_mic_size, ENC_BIG_ENDIAN);
offset += net_mic_size;
cntrl_sub_tree = proto_tree_add_subtree(tree, de_cry_tvb, decry_off, -1, ett_btmesh_proxy_transport_pdu, NULL, "Proxy Transport PDU");
/* Opcode */
proto_tree_add_item_ret_uint(cntrl_sub_tree, hf_btmesh_proxy_control_opcode, de_cry_tvb, decry_off, 1, ENC_BIG_ENDIAN, &opcode);
decry_off += 1;
/* Parameters */
switch(opcode) {
case PROXY_SET_FILTER_TYPE:
proto_tree_add_item_ret_uint(cntrl_sub_tree, hf_btmesh_proxy_control_filter_type, de_cry_tvb, decry_off, 1, ENC_BIG_ENDIAN, &filter_type);
if (filter_type > 1) {
proto_tree_add_expert(cntrl_sub_tree, pinfo, &ei_btmesh_proxy_unknown_filter_type, de_cry_tvb, decry_off, 1);
}
decry_off += 1;
break;
case PROXY_ADD_ADDRESSES_TO_FILTER:
while (decry_off <= (guint32)enc_data_len - 1) {
proto_tree_add_item_ret_uint(cntrl_sub_tree, hf_btmesh_proxy_control_list_item, de_cry_tvb, decry_off, 2, ENC_BIG_ENDIAN, &bd_address);
if (bd_address == 0 ) {
proto_tree_add_expert(cntrl_sub_tree, pinfo, &ei_btmesh_proxy_wrong_address_type, de_cry_tvb, decry_off, 2);
}
decry_off += 2;
}
break;
case PROXY_REMOVE_ADDRESSES_FROM_FILTER:
while (decry_off <= (guint32)enc_data_len - 1) {
proto_tree_add_item_ret_uint(cntrl_sub_tree, hf_btmesh_proxy_control_list_item, de_cry_tvb, decry_off, 2, ENC_BIG_ENDIAN, &bd_address);
if (bd_address == 0 ) {
proto_tree_add_expert(cntrl_sub_tree, pinfo, &ei_btmesh_proxy_wrong_address_type, de_cry_tvb, decry_off, 2);
}
decry_off += 2;
}
break;
case PROXY_FILTER_STATUS:
proto_tree_add_item_ret_uint(cntrl_sub_tree, hf_btmesh_proxy_control_filter_type, de_cry_tvb, decry_off, 1, ENC_BIG_ENDIAN, &filter_type);
if (filter_type > 1) {
proto_tree_add_expert(cntrl_sub_tree, pinfo, &ei_btmesh_proxy_unknown_filter_type, de_cry_tvb, decry_off, 1);
}
decry_off += 1;
proto_tree_add_item_ret_uint(cntrl_sub_tree, hf_btmesh_proxy_control_list_size, de_cry_tvb, decry_off, 2, ENC_BIG_ENDIAN, &list_size);
decry_off += 2;
break;
default:
proto_tree_add_expert(cntrl_sub_tree, pinfo, &ei_btmesh_proxy_unknown_opcode, de_cry_tvb, decry_off -1 , 1);
proto_tree_add_item(cntrl_sub_tree, hf_btmesh_proxy_control_parameters, de_cry_tvb, decry_off, enc_data_len - 3, ENC_NA);
decry_off += enc_data_len - 3;
}
/* Still some octets left */
if (offset - net_mic_size != decry_off + 7) {
proto_tree_add_expert(cntrl_sub_tree, pinfo, &ei_btmesh_proxy_unknown_payload, de_cry_tvb, decry_off, -1);
}
}
return offset;
}
#else /* GCRYPT_VERSION_NUMBER >= 0x010600 */
static gint
dissect_btmesh_proxy_configuration_msg(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void *data _U_)
{
proto_tree_add_item(tree, hf_btmesh_proxy_data, tvb, 0, tvb_reported_length(tvb), ENC_NA);
return tvb_reported_length(tvb);
}
#endif/* GCRYPT_VERSION_NUMBER >= 0x010600 */
static gint
dissect_btmesh_proxy_msg(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *proxy_data)
{
proto_item *item;
proto_tree *sub_tree;
tvbuff_t *next_tvb = NULL;
fragment_head *fd_head = NULL;
guint32 *sequence_counter_ptr;
void *storage;
btle_mesh_transport_ctx_t tr_ctx;
guint offset = 0;
btle_mesh_proxy_ctx_t *proxy_ctx = NULL;
DISSECTOR_ASSERT(proxy_data);
proxy_ctx = (btle_mesh_proxy_ctx_t *)proxy_data;
DISSECTOR_ASSERT(proxy_ctx->proxy_side < E_BTMESH_PROXY_SIDE_LAST);
if (pinfo->fd->visited && first_pass) {
first_pass=FALSE;
sequence_counter[proxy_ctx->proxy_side] = 0;
fragment_counter[proxy_ctx->proxy_side] = 0;
}
col_set_str(pinfo->cinfo, COL_PROTOCOL, "BT Mesh Proxy");
item = proto_tree_add_item(tree, proto_btmesh_proxy, tvb, offset, -1, ENC_NA);
sub_tree = proto_item_add_subtree(item, ett_btmesh_proxy);
proto_tree_add_item(sub_tree, hf_btmesh_proxy_sar, tvb, offset, 1, ENC_NA);
proto_tree_add_item(sub_tree, hf_btmesh_proxy_type, tvb, offset, 1, ENC_NA);
guint8 proxy_sar = (tvb_get_guint8(tvb, offset) & 0xC0 ) >> 6;
guint8 proxy_type = tvb_get_guint8(tvb, offset) & 0x3F;
offset += 1;
guint32 length = tvb_reported_length(tvb) - offset;
gboolean packetReassembledOrComplete = FALSE;
gboolean packetComplete = FALSE;
col_set_str(pinfo->cinfo, COL_INFO, val_to_str_const(proxy_type, btmesh_proxy_type, "Unknown Proxy PDU"));
switch (proxy_sar){
case PROXY_COMPLETE_MESSAGE:
packetReassembledOrComplete = TRUE;
packetComplete = TRUE;
next_tvb = tvb_new_subset_length_caplen(tvb, offset, -1, tvb_captured_length(tvb) - offset);
col_append_str(pinfo->cinfo, COL_INFO," (Complete)");
break;
case PROXY_FIRST_SEGMENT:
proto_tree_add_item(sub_tree, hf_btmesh_proxy_data_fragment, tvb, offset, length, ENC_NA);
if (!pinfo->fd->visited) {
sequence_counter[proxy_ctx->proxy_side]++;
fragment_counter[proxy_ctx->proxy_side]=0;
fd_head = fragment_add_seq(&proxy_reassembly_table,
tvb, offset, pinfo,
sequence_counter[proxy_ctx->proxy_side], NULL,
fragment_counter[proxy_ctx->proxy_side],
tvb_captured_length_remaining(tvb, offset),
TRUE, 0);
fragment_counter[proxy_ctx->proxy_side]++;
} else {
sequence_counter[proxy_ctx->proxy_side]++;
}
col_append_str(pinfo->cinfo, COL_INFO," (First Segment)");
break;
case PROXY_CONTINUATION_SEGMENT:
proto_tree_add_item(sub_tree, hf_btmesh_proxy_data_fragment, tvb, offset, length, ENC_NA);
if (!pinfo->fd->visited) {
fd_head = fragment_add_seq(&proxy_reassembly_table,
tvb, offset, pinfo,
sequence_counter[proxy_ctx->proxy_side], NULL,
fragment_counter[proxy_ctx->proxy_side],
tvb_captured_length_remaining(tvb, offset),
TRUE, 0);
fragment_counter[proxy_ctx->proxy_side]++;
}
col_append_str(pinfo->cinfo, COL_INFO," (Continuation Segment)");
break;
case PROXY_LAST_SEGMENT:
proto_tree_add_item(sub_tree, hf_btmesh_proxy_data_fragment, tvb, offset, length, ENC_NA);
if (!pinfo->fd->visited) {
fragment_add_seq(&proxy_reassembly_table,
tvb, offset, pinfo,
sequence_counter[proxy_ctx->proxy_side], NULL,
fragment_counter[proxy_ctx->proxy_side],
tvb_captured_length_remaining(tvb, offset),
FALSE, 0);
fragment_counter[proxy_ctx->proxy_side]++;
//add mapping "pinfo->num" -> "sequence_counter"
storage = wmem_alloc0(pool, sizeof(sequence_counter[proxy_ctx->proxy_side]));
*((guint32 *)storage) = sequence_counter[proxy_ctx->proxy_side];
wmem_tree_insert32(connection_info_tree, pinfo->num, storage);
fd_head = fragment_get(&proxy_reassembly_table, pinfo, sequence_counter[proxy_ctx->proxy_side], NULL);
}
packetReassembledOrComplete = TRUE;
col_append_str(pinfo->cinfo, COL_INFO," (Last Segment)");
break;
//No default since this is 2 bit value
}
if (packetReassembledOrComplete && pinfo->fd->visited) {
if (next_tvb == NULL) {
sequence_counter_ptr = (guint32 *)wmem_tree_lookup32(connection_info_tree, pinfo->num);
if (sequence_counter_ptr != NULL) {
fd_head = fragment_get(&proxy_reassembly_table, pinfo, *sequence_counter_ptr, NULL);
}
if (fd_head) {
next_tvb = process_reassembled_data(tvb, offset, pinfo,
"Reassembled Message", fd_head, &btmesh_proxy_frag_items,
NULL, sub_tree);
col_append_str(pinfo->cinfo, COL_INFO, " (Message Reassembled)");
}
}
if (next_tvb){
offset = 0;
tr_ctx.transport = E_BTMESH_TR_PROXY;
if (packetComplete) {
tr_ctx.fragmented = FALSE;
} else {
tr_ctx.fragmented = TRUE;
}
tr_ctx.segment_index = 0;
switch(proxy_type) {
case PROXY_PDU_NETWORK:
if (btmesh_handle) {
call_dissector(btmesh_handle, next_tvb, pinfo, proto_tree_get_root(tree));
} else {
proto_tree_add_item(sub_tree, hf_btmesh_proxy_data, next_tvb, offset, length, ENC_NA);
}
break;
case PROXY_PDU_MESH_BEACON:
if (btmesh_beacon_handle) {
call_dissector_with_data(btmesh_beacon_handle, next_tvb, pinfo, proto_tree_get_root(tree), &tr_ctx);
} else {
proto_tree_add_item(sub_tree, hf_btmesh_proxy_data, next_tvb, offset, length, ENC_NA);
}
break;
case PROXY_PDU_CONFIGURATION:
dissect_btmesh_proxy_configuration_msg(next_tvb, pinfo, sub_tree, NULL);
break;
case PROXY_PDU_PROVISIONING:
if (btmesh_provisioning_handle) {
call_dissector_with_data(btmesh_provisioning_handle, next_tvb, pinfo, proto_tree_get_root(tree), &tr_ctx);
} else {
proto_tree_add_item(sub_tree, hf_btmesh_proxy_data, next_tvb, offset, length, ENC_NA);
}
break;
//Default is not needed
}
}
}
return tvb_reported_length(tvb);
}
static void
proxy_init_routine(void)
{
reassembly_table_register(&proxy_reassembly_table, &addresses_reassembly_table_functions);
for (int i=0; i< E_BTMESH_PROXY_SIDE_LAST; i++ ){
sequence_counter[i] = 0;
fragment_counter[i] = 0;
}
first_pass = TRUE;
pool = wmem_allocator_new(WMEM_ALLOCATOR_SIMPLE);
}
static void
proxy_cleanup_dissector(void)
{
wmem_destroy_allocator(pool);
pool = NULL;
}
void
proto_register_btmesh_proxy(void)
{
static hf_register_info hf[] = {
{ &hf_btmesh_proxy_type,
{ "Type", "btmproxy.type",
FT_UINT8, BASE_DEC, VALS(btmesh_proxy_type), 0x3F,
NULL, HFILL }
},
{ &hf_btmesh_proxy_sar,
{ "SAR", "btmproxy.sar",
FT_UINT8, BASE_DEC, VALS(btmesh_proxy_sar), 0xC0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_data,
{ "Data", "btmproxy.data",
FT_BYTES, BASE_NONE, NULL, 0x00,
NULL, HFILL }
},
{ &hf_btmesh_proxy_data_fragment,
{ "Data Fragment", "btmproxy.data_fragment",
FT_BYTES, BASE_NONE, NULL, 0x00,
NULL, HFILL }
},
//Proxy Payload Reassembly
{ &hf_btmesh_proxy_fragments,
{ "Reassembled Proxy Payload Fragments", "btmproxy.fragments",
FT_NONE, BASE_NONE, NULL, 0x0,
"Proxy Payload Fragments", HFILL }
},
{ &hf_btmesh_proxy_fragment,
{ "Proxy Payload Fragment", "btmproxy.fragment",
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_fragment_overlap,
{ "Fragment overlap", "btmproxy.fragment.overlap",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"Fragment overlaps with other fragments", HFILL }
},
{ &hf_btmesh_proxy_fragment_overlap_conflict,
{ "Conflicting data in fragment overlap", "btmproxy.fragment.overlap.conflict",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"Overlapping fragments contained conflicting data", HFILL }
},
{ &hf_btmesh_proxy_fragment_multiple_tails,
{ "Multiple tail fragments found", "btmproxy.fragment.multipletails",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"Several tails were found when defragmenting the packet", HFILL }
},
{ &hf_btmesh_proxy_fragment_too_long_fragment,
{ "Fragment too long", "btmproxy.fragment.toolongfragment",
FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"Fragment contained data past end of packet", HFILL }
},
{ &hf_btmesh_proxy_fragment_error,
{ "Defragmentation error", "btmproxy.fragment.error",
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
"Defragmentation error due to illegal fragments", HFILL }
},
{ &hf_btmesh_proxy_fragment_count,
{ "Fragment count", "btmproxy.fragment.count",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_reassembled_length,
{ "Reassembled Proxy Payload length", "btmproxy.reassembled.length",
FT_UINT32, BASE_DEC, NULL, 0x0,
"The total length of the reassembled payload", HFILL }
},
{ &hf_btmesh_proxy_ivi,
{ "IVI", "btmproxy.ivi",
FT_UINT8, BASE_DEC, NULL, 0x80,
NULL, HFILL }
},
{ &hf_btmesh_proxy_nid,
{ "NID", "btmproxy.nid",
FT_UINT8, BASE_DEC, NULL, 0x7f,
NULL, HFILL }
},
{ &hf_btmesh_proxy_ctl,
{ "CTL", "btmproxy.ctl",
FT_UINT8, BASE_DEC, VALS(btmesh_proxy_ctl_vals), 0x80,
NULL, HFILL }
},
{ &hf_btmesh_proxy_ttl,
{ "TTL", "btmproxy.ttl",
FT_UINT8, BASE_DEC, NULL, 0x7f,
NULL, HFILL }
},
{ &hf_btmesh_proxy_seq,
{ "SEQ", "btmproxy.seq",
FT_UINT24, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_src,
{ "SRC", "btmproxy.src",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_dst,
{ "DST", "btmproxy.dst",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_transport_pdu,
{ "Proxy Transport PDU", "btmproxy.transport_pdu",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_netmic,
{ "ProxyNetMIC", "btmproxy.netmic",
FT_UINT64, BASE_HEX, NULL, 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_control_opcode,
{ "Opcode", "btmproxy.control.opcode",
FT_UINT8, BASE_DEC, VALS(btmesh_proxy_control_opcode), 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_control_parameters,
{ "Proxy Control Parameters", "btmproxy.control.parameters",
FT_BYTES, BASE_NONE, NULL, 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_control_filter_type,
{ "Filter Type", "btmproxy.control.filter_type",
FT_UINT8, BASE_DEC, VALS(btmesh_proxy_control_filter_type), 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_control_list_size,
{ "List Size", "btmproxy.control.list_size",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_btmesh_proxy_control_list_item,
{ "List Item", "btmproxy.control.list_item",
FT_UINT16, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
};
static gint *ett[] = {
&ett_btmesh_proxy,
&ett_btmesh_proxy_network_pdu,
&ett_btmesh_proxy_transport_pdu,
&ett_btmesh_proxy_fragments,
&ett_btmesh_proxy_fragment,
};
static ei_register_info ei[] = {
{ &ei_btmesh_proxy_unknown_opcode,{ "btmproxy.unknown_opcode", PI_PROTOCOL, PI_ERROR, "Unknown Opcode", EXPFILL } },
{ &ei_btmesh_proxy_unknown_payload,{ "btmproxy.unknown_payload", PI_PROTOCOL, PI_ERROR, "Unknown Payload", EXPFILL } },
{ &ei_btmesh_proxy_wrong_ctl,{ "btmproxy.wrong_ctl", PI_PROTOCOL, PI_ERROR, "Wrong CTL value", EXPFILL } },
{ &ei_btmesh_proxy_wrong_ttl,{ "btmproxy.wrong_ttl", PI_PROTOCOL, PI_ERROR, "Wrong TTL value", EXPFILL } },
{ &ei_btmesh_proxy_wrong_dst,{ "btmproxy.wrong_dst", PI_PROTOCOL, PI_ERROR, "Wrong DST value", EXPFILL } },
{ &ei_btmesh_proxy_unknown_filter_type,{ "btmproxy.unknown_filter_type", PI_PROTOCOL, PI_ERROR, "Unknown Filter Type", EXPFILL } },
{ &ei_btmesh_proxy_wrong_address_type,{ "btmproxy.wrong_address_type", PI_PROTOCOL, PI_ERROR, "Wrong Address Type", EXPFILL } },
};
expert_module_t* expert_btmesh_proxy;
proto_btmesh_proxy = proto_register_protocol("Bluetooth Mesh Proxy", "BT Mesh proxy", "btmproxy");
proto_register_field_array(proto_btmesh_proxy, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_btmesh_proxy = expert_register_protocol(proto_btmesh_proxy);
expert_register_field_array(expert_btmesh_proxy, ei, array_length(ei));
prefs_register_protocol_subtree("Bluetooth", proto_btmesh_proxy, NULL);
register_dissector("btmesh.proxy", dissect_btmesh_proxy_msg, proto_btmesh_proxy);
connection_info_tree = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
register_init_routine(proxy_init_routine);
register_cleanup_routine(proxy_cleanup_dissector);
}
void
proto_reg_handoff_btmesh_proxy(void)
{
btmesh_handle = find_dissector("btmesh.msg");
btmesh_provisioning_handle = find_dissector("btmesh.provisioning");
btmesh_beacon_handle = find_dissector("btmesh.beacon");
}
/*
* Editor modelines
*
* 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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