osmith
/
wireshark
forked from osmocom/wireshark
1
0
Fork 0
Code Pull Requests Releases Wiki Activity

Add FIND dissector

This commit is contained in:
Roman-Koshelev 2021-03-21 18:13:30 +03:00 committed by Wireshark GitLab Utility
parent bedd1a8aee
commit ecad065809
1 changed files with 85 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

85
epan/dissectors/packet-arinc615a.c
View File

@ -78,6 +78,31 @@ static int hf_a615a_designation = -1;
static int hf_a615a_user_data = -1;
static int hf_a615a_file_type = -1;
#define FIND_PORT 1001
static int proto_find = -1;
static gint ett_find = -1;
static int hf_find_opcode = -1;
static int hf_find_target_hardware_identifier = -1;
static int hf_find_target_type_name = -1;
static int hf_find_target_position = -1;
static int hf_find_literal_name = -1;
static int hf_find_manufacturer_code = -1;
static int hf_find_packet_terminator = -1;
static dissector_handle_t find_handle;
#define FIND_IRQ 1
#define FIND_IAN 2
static const value_string find_opcode_vals[] = {
{ FIND_IRQ, "Information ReQuest (IRQ)" },
{ FIND_IAN, "Information ANswer (IAN)" },
{ 0, NULL }
};
static void dissect_a615a_LCL(ptvcursor_t *ptvc, packet_info *pinfo _U_)
{
guint32 th_count, pn_count;
@ -312,6 +337,34 @@ static gboolean dissect_a615a_heur(tvbuff_t *tvb, packet_info *pinfo, proto_tree
return FALSE;
}
static int dissect_find(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
col_set_str(pinfo->cinfo, COL_PROTOCOL, "FIND");
proto_item *ti = proto_tree_add_item(tree, proto_find, tvb, 0, -1, ENC_NA);
proto_tree *find_tree = proto_item_add_subtree(ti, ett_find);
ptvcursor_t *ptvc = ptvcursor_new(find_tree, tvb, 0);
guint32 opcode;
ptvcursor_add_ret_uint(ptvc, hf_find_opcode, 2, ENC_BIG_ENDIAN, &opcode);
col_append_fstr(pinfo->cinfo, COL_INFO, ", %s", val_to_str(opcode, find_opcode_vals, "Unknown (0x%04x)"));
if (opcode == FIND_IAN) {
ptvcursor_add(ptvc, hf_find_target_hardware_identifier, -1, ENC_ASCII | ENC_NA);
ptvcursor_add(ptvc, hf_find_target_type_name, -1, ENC_ASCII | ENC_NA);
ptvcursor_add(ptvc, hf_find_target_position, -1, ENC_ASCII | ENC_NA);
ptvcursor_add(ptvc, hf_find_literal_name, -1, ENC_ASCII | ENC_NA);
ptvcursor_add(ptvc, hf_find_manufacturer_code, -1, ENC_ASCII | ENC_NA);
} else {
ptvcursor_advance(ptvc, 1);
}
ptvcursor_add(ptvc, hf_find_packet_terminator, 1, ENC_NA);
ptvcursor_free(ptvc);
return tvb_captured_length(tvb);
}
void proto_register_a615a(void)
{
static hf_register_info hf[] = {
@ -380,12 +433,44 @@ void proto_register_a615a(void)
proto_a615a = proto_register_protocol("Arinc 615a Protocol", "A615a", "a615a");
proto_register_field_array(proto_a615a, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
static hf_register_info hf_find[] = {
{&hf_find_opcode,
{"Opcode", "find.opcode", FT_UINT16, BASE_DEC, VALS(find_opcode_vals), 0x0,
"FIND Opcode", HFILL}},
{&hf_find_target_hardware_identifier,
{"Target Hardware Identifier", "find.target_hardware_identifier", FT_STRINGZ,
BASE_NONE, NULL, 0x0, "FIND Target Hardware Identifier", HFILL}},
{&hf_find_target_type_name,
{"Target Type Name", "find.target_type_name", FT_STRINGZ, BASE_NONE, NULL, 0x0,
"FIND Target Type Name", HFILL}},
{&hf_find_target_position,
{"Target Position", "find.target_position", FT_STRINGZ, BASE_NONE, NULL, 0x0,
"FIND Target Position", HFILL}},
{&hf_find_literal_name,
{"Literal Name", "find.literal_name", FT_STRINGZ, BASE_NONE, NULL, 0x0,
"FIND Literal Name", HFILL}},
{&hf_find_manufacturer_code,
{"Manufacturer Code", "find.manufacturer_code", FT_STRINGZ, BASE_NONE, NULL, 0x0,
"FIND Manufacturer Code", HFILL}},
{&hf_find_packet_terminator,
{"Packet terminator", "find.packet_terminator", FT_UINT8, BASE_HEX, NULL, 0x0,
"FIND Packet terminator", HFILL}}
};
static gint *etts_find[] = {&ett_find};
proto_find = proto_register_protocol("Find Identification of Network Devices", "FIND", "find");
proto_register_field_array(proto_find, hf_find, array_length(hf_find));
proto_register_subtree_array(etts_find, array_length(etts_find));
find_handle = register_dissector("find", dissect_find, proto_find);
}
void proto_reg_handoff_a615a(void)
{
heur_dissector_add("tftp", dissect_a615a_heur, "Arinc 615a Protocol", "a615a", proto_a615a,
HEURISTIC_ENABLE);
dissector_add_uint_with_preference("udp.port", FIND_PORT, find_handle);
}
/*