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|
/* packet-ubdp.c
* Routines for the disassembly of the "Ubiquiti Discovery Protocol (UBDP)"
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "config.h"
#include <epan/packet.h>
#include <epan/expert.h>
#define UB_TLV_TYPE 0
#define UB_TLV_LENGTH 1
#define UB_HW_ADDR 1
#define UB_HW_IP_ADDR 2
#define UB_FIRMWARE_FULL 3
#define UB_HW_IP_ADDR_2 4
#define UB_HW_ADDR_2 5
#define UB_USERNAME 6
#define UB_SALT 7
#define UB_RND_CHALLENGE 8
#define UB_CHALLENGE 9
#define UB_UPTIME 10
#define UB_HOSTNAME 11
#define UB_PRODUCT 12
#define UB_ESSID 13
#define UB_WLAN_MODE 14
#define UB_WEBUI 15
#define UB_SYSTEM_ID 16
#define UB_SEQ_NUM 18
#define UB_HW_ADDR_3 19
#define UB_TYPE 20
#define UB_MODEL 21
#define UB_FIRMWARE 22
#define UB_DEFAULT 23
#define UB_LOCATING 24
#define UB_DHCP_CLIENT 25
#define UB_DHCP_CLIENT_BOUND 26
#define UB_PLATFORM_VERS 27
#define UB_SSHD_PORT 28
void proto_register_ubdp(void);
void proto_reg_handoff_ubdp(void);
static int proto_ubdp;
static int hf_ubdp_version;
static int hf_ubdp_command;
static int hf_ubdp_size;
static int hf_ubdp_type;
static int hf_ubdp_len;
static int hf_ubdp_mac;
static int hf_ubdp_ip;
static int hf_ubdp_firmware_full;
static int hf_ubdp_username;
static int hf_ubdp_salt;
static int hf_ubdp_rnd_challenge;
static int hf_ubdp_challenge;
static int hf_ubdp_uptime;
static int hf_ubdp_hostname;
static int hf_ubdp_product;
static int hf_ubdp_ssid;
static int hf_ubdp_wlan_mode;
static int hf_ubdp_webui;
static int hf_ubdp_system_id;
static int hf_ubdp_seq_num;
static int hf_ubdp_model;
static int hf_ubdp_firmware;
static int hf_ubdp_default;
static int hf_ubdp_locating;
static int hf_ubdp_dhcp_client;
static int hf_ubdp_dhcp_client_bound;
static int hf_ubdp_platform_vers;
static int hf_ubdp_sshd_port;
static int hf_ubdp_generic;
static int ett_ubdp;
static int ett_ubdp_tlv;
static expert_field ei_ubdp_bad_version;
static expert_field ei_ubdp_unexpected_len;
static dissector_handle_t ubdp_handle;
/* Format Identifier */
static const value_string type_vals[] = {
{ UB_HW_ADDR, "MAC Address" },
{ UB_HW_IP_ADDR, "MAC and IP Address" },
{ UB_FIRMWARE_FULL, "Firmware Detailed" },
{ UB_HW_IP_ADDR_2, "IP Address" },
{ UB_HW_ADDR_2, "MAC Address" },
{ UB_USERNAME, "Username" },
{ UB_SALT, "Salt" },
{ UB_RND_CHALLENGE, "Random Challenge" },
{ UB_CHALLENGE, "Challenge" },
{ UB_UPTIME, "Uptime" },
{ UB_HOSTNAME, "Hostname" },
{ UB_PRODUCT, "Product" },
{ UB_ESSID, "ESSID" },
{ UB_WLAN_MODE, "WLAN Mode" },
{ UB_WEBUI, "Web-UI" },
{ UB_SYSTEM_ID, "System ID" },
{ UB_SEQ_NUM, "Counter" },
{ UB_HW_ADDR_3, "MAC Address" },
{ UB_TYPE, "Model Type" },
{ UB_MODEL, "Model" },
{ UB_FIRMWARE, "Firmware" },
{ UB_DEFAULT, "Default" },
{ UB_LOCATING, "Locating" },
{ UB_DHCP_CLIENT, "DHCP-Client" },
{ UB_DHCP_CLIENT_BOUND, "DHCP-Client Bound" },
{ UB_PLATFORM_VERS, "Platform Version"},
{ UB_SSHD_PORT, "SSHD Port"},
{ 0, NULL }
};
static const string_string ubiquiti_vals[] = {
{"UP4", "UP4: UniFi Phone-X"},
{"UP5", "UP5: UniFi Phone"},
{"UP5c", "UP5c: UniFi Phone"},
{"UP5t", "UP5t: UniFi Phone-Pro"},
{"UP5tc", "UP5tc: UniFi Phone-Pro"},
{"UP7", "UP7: UniFi Phone-Executive"},
{"UP7c", "UP7c: UniFi Phone-Executive"},
{"N2N", "N2N: NanoStation M2"},
{"p2N", "p2N: PicoStation M2"},
{"P6E", "P6E: mFi mPower Pro"},
{"US8P150", "US8P150: UniFi Switch 8 POE-150W"},
{"US16P150","US16P150: UniFi Switch 16 POE-150W"},
{"US24", "US24: UniFi Switch 24"},
{"US24P250","US24P250: UniFi Switch 24 POE-250W"},
{"US24P500","US24P500: UniFi Switch 24 POE-500W"},
{"US48", "US48: UniFi Switch 48"},
{"US48P500","US48P500: UniFi Switch 48 POE-500W"},
{"US48P750","US48P750: UniFi Switch 48 POE-750W"},
{"UGW3", "UGW3: UniFi Security Gateway"},
{"UGW4", "UGW4: UniFi Security Gateway-Pro"},
{"BZ2", "BZ2: UniFi AP"},
{"BZ2LR", "BZ2LR: UniFi AP-LR"},
{"U2O", "U2O: UniFi AP-Outdoor"},
{"U2HSR", "U2HSR: UniFi AP-Outdoor+"},
{"U2IW", "U2IW: UniFi AP-In Wall"},
{"U5O", "U5O: UniFi AP-Outdoor 5G"},
{"U7E", "U7E: UniFi AP-AC"},
{"U7Ev2", "U7Ev2: UniFi AP-AC v2"},
{"U7EDU", "U7EDU: UniFi AP-AC-EDU"},
{"U7HD", "U7HD: UniFi AP-AC-HD"},
{"U7LR", "U7LR: UniFi AP-AC-LR"},
{"U7LT", "U7LT: UniFi AP-AC-Lite"},
{"U7MSH", "U7MSH: UniFi AP-AC-Mesh"},
{"U7MP", "U7MP: UniFi AP-AC-Mesh-Pro"},
{"U7O", "U7O: UniFi AP-AC Outdoor"},
{"U7P", "U7P: UniFi AP-Pro"},
{"U7PG2", "U7PG2: UniFi AP-AC-Pro Gen2"},
{NULL, NULL}
};
static int
dissect_ubdp(tvbuff_t *ubdp_tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_tree *ubdp_tree, *tlv_tree;
proto_item *ubdp_item, *tlv_item;
uint32_t ubdp_length;
uint32_t ubdp_type;
uint32_t version;
int offset = 0;
char *uValue;
const char *uModel;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "UBDP");
col_set_str(pinfo->cinfo, COL_INFO, "UBDP");
ubdp_item = proto_tree_add_item(tree, proto_ubdp, ubdp_tvb, 0, -1, ENC_NA);
ubdp_tree = proto_item_add_subtree(ubdp_item, ett_ubdp);
proto_tree_add_item_ret_uint(ubdp_tree, hf_ubdp_version, ubdp_tvb, offset, 1, ENC_BIG_ENDIAN, &version);
proto_tree_add_item(ubdp_tree, hf_ubdp_command, ubdp_tvb, offset + 1, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(ubdp_tree, hf_ubdp_size, ubdp_tvb, offset + 2, 2, ENC_BIG_ENDIAN);
offset+=4;
if (version != 1 && version != 2){
expert_add_info(pinfo, ubdp_item, &ei_ubdp_bad_version);
return tvb_captured_length(ubdp_tvb);
}
while(tvb_reported_length_remaining(ubdp_tvb, offset) != 0){
tlv_tree = proto_tree_add_subtree(ubdp_tree, ubdp_tvb, offset + UB_TLV_TYPE, -1, ett_ubdp_tlv, &tlv_item, "");
proto_tree_add_item_ret_uint(tlv_tree, hf_ubdp_type, ubdp_tvb, offset + UB_TLV_TYPE, 1, ENC_BIG_ENDIAN, &ubdp_type);
proto_item_set_text(tlv_tree, "%s", val_to_str_const(ubdp_type, type_vals, "Unknown type"));
proto_tree_add_item_ret_uint(tlv_tree, hf_ubdp_len, ubdp_tvb, offset + UB_TLV_LENGTH, 2, ENC_BIG_ENDIAN, &ubdp_length);
offset += 3;
switch(ubdp_type){
case UB_HW_ADDR:
case UB_HW_ADDR_2:
case UB_HW_ADDR_3:
if(ubdp_length == 6){
proto_tree_add_item(tlv_tree, hf_ubdp_mac, ubdp_tvb, offset, ubdp_length, ENC_NA);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
case UB_HW_IP_ADDR:
case UB_HW_IP_ADDR_2:
if(ubdp_length == 10){ // UB_HW_IP_ADDR
proto_tree_add_item(tlv_tree, hf_ubdp_mac, ubdp_tvb, offset, 6, ENC_NA);
proto_tree_add_item(tlv_tree, hf_ubdp_ip, ubdp_tvb, offset + 6, 4, ENC_NA);
}else if(ubdp_length == 4){ // UB_HW_IP_ADDR_2
proto_tree_add_item(tlv_tree, hf_ubdp_ip, ubdp_tvb, offset, 4, ENC_NA);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
case UB_FIRMWARE_FULL:
proto_tree_add_item(tlv_tree, hf_ubdp_firmware_full, ubdp_tvb, offset, ubdp_length, ENC_ASCII);
break;
case UB_USERNAME:
proto_tree_add_item(tlv_tree, hf_ubdp_username, ubdp_tvb, offset, ubdp_length, ENC_ASCII);
break;
case UB_SALT:
proto_tree_add_item(tlv_tree, hf_ubdp_salt, ubdp_tvb, offset, ubdp_length, ENC_NA);
break;
case UB_RND_CHALLENGE:
proto_tree_add_item(tlv_tree, hf_ubdp_rnd_challenge, ubdp_tvb, offset, ubdp_length, ENC_NA);
break;
case UB_CHALLENGE:
proto_tree_add_item(tlv_tree, hf_ubdp_challenge, ubdp_tvb, offset, ubdp_length, ENC_NA);
break;
case UB_UPTIME:
if(ubdp_length == 4){
proto_tree_add_item(tlv_tree, hf_ubdp_uptime, ubdp_tvb, offset, ubdp_length, ENC_NA);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
case UB_HOSTNAME:
proto_tree_add_item(tlv_tree, hf_ubdp_hostname, ubdp_tvb, offset, ubdp_length, ENC_UTF_8);
break;
case UB_PRODUCT:
uValue = tvb_get_string_enc(pinfo->pool, ubdp_tvb, offset, ubdp_length, ENC_ASCII);
uModel = try_str_to_str(uValue, ubiquiti_vals);
proto_tree_add_string(tlv_tree, hf_ubdp_product, ubdp_tvb, offset, ubdp_length, uModel ? uModel : uValue);
break;
case UB_ESSID:
proto_tree_add_item(tlv_tree, hf_ubdp_ssid, ubdp_tvb, offset, ubdp_length, ENC_ASCII);
break;
case UB_WLAN_MODE:
if(ubdp_length == 1){
proto_tree_add_item(tlv_tree, hf_ubdp_wlan_mode, ubdp_tvb, offset, ubdp_length, ENC_NA);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
case UB_WEBUI:
proto_tree_add_item(tlv_tree, hf_ubdp_webui, ubdp_tvb, offset, ubdp_length, ENC_UTF_8);
break;
case UB_SYSTEM_ID:
if(ubdp_length == 2){
proto_tree_add_item(tlv_tree, hf_ubdp_system_id, ubdp_tvb, offset, ubdp_length, ENC_BIG_ENDIAN);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
case UB_SEQ_NUM:
if(ubdp_length == 4){
proto_tree_add_item(tlv_tree, hf_ubdp_seq_num, ubdp_tvb, offset, ubdp_length, ENC_NA);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
case UB_TYPE:
uValue = tvb_get_string_enc(pinfo->pool, ubdp_tvb, offset, ubdp_length, ENC_ASCII);
uModel = try_str_to_str(uValue, ubiquiti_vals);
proto_tree_add_string(tlv_tree, hf_ubdp_model, ubdp_tvb, offset, ubdp_length, uModel ? uModel : uValue);
break;
case UB_MODEL:
uValue = tvb_get_string_enc(pinfo->pool, ubdp_tvb, offset, ubdp_length, ENC_ASCII);
uModel = try_str_to_str(uValue, ubiquiti_vals);
proto_tree_add_string(tlv_tree, hf_ubdp_model, ubdp_tvb, offset, ubdp_length, uModel ? uModel : uValue);
break;
case UB_FIRMWARE:
proto_tree_add_item(tlv_tree, hf_ubdp_firmware, ubdp_tvb, offset, ubdp_length, ENC_ASCII);
break;
case UB_DEFAULT:
if(ubdp_length == 1 || ubdp_length == 4){
proto_tree_add_item(tlv_tree, hf_ubdp_default, ubdp_tvb, offset, ubdp_length, ENC_NA);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
case UB_LOCATING:
if(ubdp_length == 1 || ubdp_length == 4){
proto_tree_add_item(tlv_tree, hf_ubdp_locating, ubdp_tvb, offset, ubdp_length, ENC_NA);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
case UB_DHCP_CLIENT:
if(ubdp_length == 1){
proto_tree_add_item(tlv_tree, hf_ubdp_dhcp_client, ubdp_tvb, offset, ubdp_length, ENC_NA);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
case UB_DHCP_CLIENT_BOUND:
if(ubdp_length == 1){
proto_tree_add_item(tlv_tree, hf_ubdp_dhcp_client_bound, ubdp_tvb, offset, ubdp_length, ENC_NA);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
case UB_PLATFORM_VERS:
proto_tree_add_item(tlv_tree, hf_ubdp_platform_vers, ubdp_tvb, offset, ubdp_length, ENC_ASCII);
break;
case UB_SSHD_PORT:
if(ubdp_length == 2){
proto_tree_add_item(tlv_tree, hf_ubdp_dhcp_client_bound, ubdp_tvb, offset, ubdp_length, ENC_NA);
}else{
expert_add_info(pinfo, tlv_item, &ei_ubdp_unexpected_len);
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
}
break;
default:
proto_tree_add_item(tlv_tree, hf_ubdp_generic, ubdp_tvb, offset, ubdp_length, ENC_NA);
break;
}
proto_item_set_len(tlv_item, ubdp_length + 3);
offset += ubdp_length;
}
return tvb_captured_length(ubdp_tvb);
}
void
proto_register_ubdp(void)
{
static hf_register_info hf[] = {
{ &hf_ubdp_version, {"Version", "ubdp.version", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_command, {"Command", "ubdp.command", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_size, {"Data Bytes","ubdp.size",FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_type, {"Type","ubdp.type",FT_UINT8, BASE_DEC, VALS(type_vals), 0x0, NULL, HFILL }},
{ &hf_ubdp_len, {"Length","ubdp.len",FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_mac, {"MAC","ubdp.mac",FT_ETHER, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_ip, {"IP","ubdp.ip",FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_firmware_full, {"Firmware Path","ubdp.firmware_full",FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_username, {"Username", "ubdp.username", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_salt, {"Salt", "ubdp.salt", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_rnd_challenge, {"Random Challenge", "ubdp.rnd_challenge", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_challenge, {"Challenge", "ubdp.challenge", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_uptime, {"Uptime","ubdp.uptime",FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_hostname, {"Hostname","ubdp.hostname",FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_product, {"Product","ubdp.product",FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_ssid, {"SSID","ubdp.ssid",FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_wlan_mode, {"Wireless Mode","ubdp.wlan_mode",FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_webui, {"Web-UI", "ubdp.web_ui", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_seq_num, {"Counter","ubdp.seq_num",FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_model, {"Model","ubdp.model",FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_system_id, {"System ID","ubdp.system_id",FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_firmware, {"Version","ubdp.firmware",FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_default, {"Default", "ubdp.default", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_locating, {"Locating", "ubdp.locating", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_dhcp_client, {"DHCP-Client", "ubdp.dhcp_client", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_dhcp_client_bound, {"DHCP-Client Bound", "ubdp.dhcp_client_bound", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_platform_vers, {"Platform Version","ubdp.platform_vers",FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_sshd_port, {"SSHD Port","ubdp.sshd_port", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL }},
{ &hf_ubdp_generic, {"Unknown Field","ubdp.unk",FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }}
};
static int *ett[] = {
&ett_ubdp,
&ett_ubdp_tlv
};
static ei_register_info ei[] = {
{ &ei_ubdp_bad_version, { "ubdp.bad-version-detected", PI_PROTOCOL, PI_WARN, "Bad Version Detected", EXPFILL }},
{ &ei_ubdp_unexpected_len, { "ubdp.bad-field-length-detected", PI_PROTOCOL, PI_WARN, "Bad Length Field Detected", EXPFILL }},
};
expert_module_t* expert_ubdp;
proto_ubdp = proto_register_protocol("Ubiquiti Discovery Protocol", "UBDP", "ubdp");
proto_register_field_array(proto_ubdp, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_ubdp = expert_register_protocol(proto_ubdp);
expert_register_field_array(expert_ubdp, ei, array_length(ei));
ubdp_handle = register_dissector("ubdp", dissect_ubdp, proto_ubdp);
}
void
proto_reg_handoff_ubdp(void)
{
dissector_add_for_decode_as_with_preference("udp.port", ubdp_handle);
}
/*
* 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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