 | 1 | initial version |
Here is answer to what's happening but not a solution to the problem. Sorry.
epan/dissectors/packet-bthci_evt.c is expecting an extra chunk of data:
static gint
dissect_bthci_evt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
...
/* Reject the packet if data is NULL */
if (data == NULL)
return 0;
When it's normally called (epan/dissectors/packet-hci_usb.c) that data is provided:
case 1:
call_dissector_with_data(bthci_evt_handle, next_tvb, pinfo, tree, bluetooth_data);
break;
The Wireshark Lua (wslua) does not support the extra parameter when calling a dissector.
From the WSDG:
11.6.1.3. dissector:call(tvb, pinfo, tree) Calls a dissector against a given packet (or part of it).
Arguments
tvb - The buffer to dissect.
pinfo - The packet info.
tree - The tree on which to add the protocol items.
Returns - Number of bytes dissected. Note that some dissectors always return number of bytes in incoming buffer, so be aware.
And the call in wslua (epan/wslua/wslua_dissector.c):
WSLUA_METHOD Dissector_call(lua_State* L) {
/* Calls a dissector against a given packet (or part of it). */
#define WSLUA_ARG_Dissector_call_TVB 2 /* The buffer to dissect. */
#define WSLUA_ARG_Dissector_call_PINFO 3 /* The packet info. */
#define WSLUA_ARG_Dissector_call_TREE 4 /* The tree on which to add the protocol items. */
Dissector volatile d = checkDissector(L,1);
Tvb tvb = checkTvb(L,WSLUA_ARG_Dissector_call_TVB);
Pinfo pinfo = checkPinfo(L,WSLUA_ARG_Dissector_call_PINFO);
TreeItem ti = checkTreeItem(L,WSLUA_ARG_Dissector_call_TREE);
const char *volatile error = NULL;
int len = 0;
if (! ( d && tvb && pinfo) ) return 0;
TRY {
len = call_dissector(d, tvb->ws_tvb, pinfo->ws_pinfo, ti->tree);
...
| | 2 | No.2 Revision |
Here is answer to what's happening but not a solution to the problem. Sorry.
epan/dissectors/packet-bthci_evt.c is expecting an extra chunk of data:
static gint
dissect_bthci_evt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
...
/* Reject the packet if data is NULL */
if (data == NULL)
return 0;
When it's normally called (epan/dissectors/packet-hci_usb.c) that data is provided:
case 1:call_dissector_with_data(bthci_evt_handle, next_tvb, pinfo, tree, bluetooth_data);break;
The Wireshark Lua (wslua) does not support the extra parameter when calling a dissector.
From the WSDG:
11.6.1.3. dissector:call(tvb, pinfo, tree) Calls a dissector against a given packet (or part of it).
Arguments
tvb - The buffer to dissect.
pinfo - The packet info.
tree - The tree on which to add the protocol items.
Returns - Number of bytes dissected. Note that some dissectors always return number of bytes in incoming buffer, so be aware.
And the call in wslua (epan/wslua/wslua_dissector.c):
WSLUA_METHOD Dissector_call(lua_State* L) {
/* Calls a dissector against a given packet (or part of it). */
#define WSLUA_ARG_Dissector_call_TVB 2 /* The buffer to dissect. */
#define WSLUA_ARG_Dissector_call_PINFO 3 /* The packet info. */
#define WSLUA_ARG_Dissector_call_TREE 4 /* The tree on which to add the protocol items. */
Dissector volatile d = checkDissector(L,1);
Tvb tvb = checkTvb(L,WSLUA_ARG_Dissector_call_TVB);
Pinfo pinfo = checkPinfo(L,WSLUA_ARG_Dissector_call_PINFO);
TreeItem ti = checkTreeItem(L,WSLUA_ARG_Dissector_call_TREE);
const char *volatile error = NULL;
int len = 0;
if (! ( d && tvb && pinfo) ) return 0;
TRY {
len = call_dissector(d, tvb->ws_tvb, pinfo->ws_pinfo, ti->tree);
...
| | 3 | No.3 Revision |
Here is answer to what's happening but not a solution to the problem. Sorry.
epan/dissectors/packet-bthci_evt.c is expecting an extra chunk of data:
static gint
dissect_bthci_evt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
...
/* Reject the packet if data is NULL */
if (data == NULL)
return 0;
When it's normally called (epan/dissectors/packet-hci_usb.c) that data is provided:
case 1:
call_dissector_with_data(bthci_evt_handle, next_tvb, pinfo, tree, bluetooth_data);
break;
The Wireshark Lua (wslua) does not support the extra parameter when calling a dissector.
From the WSDG:
11.6.1.3. dissector:call(tvb, pinfo, tree) Calls a dissector against a given packet (or part of it).
Arguments
tvb - The buffer to dissect.
pinfo - The packet info.
tree - The tree on which to add the protocol items.
Returns - Number of bytes dissected. Note that some dissectors always return number of bytes in incoming buffer, so be aware.
And the call in wslua (epan/wslua/wslua_dissector.c):
WSLUA_METHOD Dissector_call(lua_State* L) {
/* Calls a dissector against a given packet (or part of it). */
#define WSLUA_ARG_Dissector_call_TVB 2 /* The buffer to dissect. */
#define WSLUA_ARG_Dissector_call_PINFO 3 /* The packet info. */
#define WSLUA_ARG_Dissector_call_TREE 4 /* The tree on which to add the protocol items. */
Dissector volatile d = checkDissector(L,1);
Tvb tvb = checkTvb(L,WSLUA_ARG_Dissector_call_TVB);
Pinfo pinfo = checkPinfo(L,WSLUA_ARG_Dissector_call_PINFO);
TreeItem ti = checkTreeItem(L,WSLUA_ARG_Dissector_call_TREE);
const char *volatile error = NULL;
int len = 0;
if (! ( d && tvb && pinfo) ) return 0;
TRY {
len = call_dissector(d, tvb->ws_tvb, pinfo->ws_pinfo, ti->tree);
...
Sample capture (btsnoop_hci_20210205_105229.log) with the Bluetooth HCI H4 protocol attached to 17236: [Tshark] - Missing bluetooth protocol details