/* packet-asphodel.c * Routines for Asphodel dissection * Copyright 2018, Greg Schwendimann * Copyright 2020, Jeffrey Nichols * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1998 Gerald Combs * * SPDX-License-Identifier: BSD-2-Clause */ /* * Asphodel: https://bitbucket.org/suprocktech/asphodel */ #include #include #include #include "packet-tcp.h" void proto_reg_handoff_asphodel(void); void proto_register_asphodel(void); // useful #defines copied from asphodel_protocol.h and asphodel_tcp.c #define ASPHODEL_PROTOCOL_TYPE_RF_POWER 0x01 #define ASPHODEL_PROTOCOL_TYPE_RADIO 0x02 #define ASPHODEL_PROTOCOL_TYPE_REMOTE 0x04 #define ASPHODEL_PROTOCOL_TYPE_BOOTLOADER 0x08 #define ASPHODEL_TCP_MSG_TYPE_DEVICE_CMD 0x00 #define ASPHODEL_TCP_MSG_TYPE_DEVICE_STREAM 0x01 #define ASPHODEL_TCP_MSG_TYPE_REMOTE_CMD 0x02 #define ASPHODEL_TCP_MSG_TYPE_REMOTE_STREAM 0x03 #define ASPHODEL_TCP_MSG_TYPE_REMOTE_NOTIFY 0x06 #define ASPHODEL_CMD_REPLY_ERROR 0xFF static const value_string asphodel_type_vals[] = { { ASPHODEL_TCP_MSG_TYPE_DEVICE_CMD, "DEVICE_CMD" }, { ASPHODEL_TCP_MSG_TYPE_DEVICE_STREAM, "DEVICE_STREAM" }, { ASPHODEL_TCP_MSG_TYPE_REMOTE_CMD, "REMOTE_CMD" }, { ASPHODEL_TCP_MSG_TYPE_REMOTE_STREAM, "REMOTE_STREAM" }, { ASPHODEL_TCP_MSG_TYPE_REMOTE_NOTIFY, "REMOTE_NOTIFY" }, { 0, NULL } }; static const value_string asphodel_cmd_vals[] = { { 0x00, "GET_PROTOCOL_VERSION" }, { 0x01, "GET_BOARD_INFO" }, { 0x02, "GET_USER_TAG_LOCATIONS" }, { 0x03, "GET_BUILD_INFO" }, { 0x04, "GET_BUILD_DATE" }, { 0x05, "GET_CHIP_FAMILY" }, { 0x06, "GET_CHIP_MODEL" }, { 0x07, "GET_CHIP_ID" }, { 0x08, "GET_NVM_SIZE" }, { 0x09, "ERASE_NVM" }, { 0x0A, "WRITE_NVM" }, { 0x0B, "READ_NVM" }, { 0x0C, "FLUSH" }, { 0x0D, "RESET" }, { 0x0E, "GET_BOOTLOADER_INFO" }, { 0x0F, "BOOTLOADER_JUMP" }, { 0x10, "GET_RGB_COUNT" }, { 0x11, "GET_RGB_VALUES" }, { 0x12, "SET_RGB" }, { 0x13, "SET_RGB_INSTANT" }, { 0x14, "GET_LED_COUNT" }, { 0x15, "GET_LED_VALUE" }, { 0x16, "SET_LED" }, { 0x17, "SET_LED_INSTANT" }, { 0x20, "GET_STREAM_COUNT_AND_ID" }, { 0x21, "GET_STREAM_CHANNELS" }, { 0x22, "GET_STREAM_FORMAT" }, { 0x23, "ENABLE_STREAM" }, { 0x24, "WARM_UP_STREAM" }, { 0x25, "GET_STREAM_STATUS" }, { 0x26, "GET_STREAM_RATE_INFO" }, { 0x30, "GET_CHANNEL_COUNT" }, { 0x31, "GET_CHANNEL_NAME" }, { 0x32, "GET_CHANNEL_INFO" }, { 0x33, "GET_CHANNEL_COEFFICIENTS" }, { 0x34, "GET_CHANNEL_CHUNK" }, { 0x35, "CHANNEL_SPECIFIC" }, { 0x36, "GET_CHANNEL_CALIBRATION" }, { 0x40, "GET_SUPPLY_COUNT" }, { 0x41, "GET_SUPPLY_NAME" }, { 0x42, "GET_SUPPLY_INFO" }, { 0x43, "CHECK_SUPPLY" }, { 0x50, "GET_CTRL_VAR_COUNT" }, { 0x51, "GET_CTRL_VAR_NAME" }, { 0x52, "GET_CTRL_VAR_INFO" }, { 0x53, "GET_CTRL_VAR" }, { 0x54, "SET_CTRL_VAR" }, { 0x60, "GET_SETTING_COUNT" }, { 0x61, "GET_SETTING_NAME" }, { 0x62, "GET_SETTING_INFO" }, { 0x63, "GET_SETTING_DEFAULT" }, { 0x64, "GET_CUSTOM_ENUM_COUNTS" }, { 0x65, "GET_CUSTOM_ENUM_VALUE_NAME" }, { 0x66, "GET_SETTING_CATEGORY_COUNT" }, { 0x67, "GET_SETTING_CATEGORY_NAME" }, { 0x68, "GET_SETTING_CATERORY_SETTINGS" }, { 0x70, "SET_DEVICE_MODE" }, { 0x71, "GET_DEVICE_MODE" }, { 0x80, "ENABLE_RF_POWER" }, { 0x81, "GET_RF_POWER_STATUS" }, { 0x82, "GET_RF_POWER_CTRL_VARS" }, { 0x83, "RESET_RF_POWER_TIMEOUT" }, { 0x90, "STOP_RADIO" }, { 0x91, "START_RADIO_SCAN" }, { 0x92, "GET_RADIO_SCAN_RESULTS" }, { 0x93, "CONNECT_RADIO" }, { 0x94, "GET_RADIO_STATUS" }, { 0x95, "GET_RADIO_CTRL_VARS" }, { 0x96, "GET_RADIO_DEFAULT_SERIAL" }, { 0x97, "START_RADIO_SCAN_BOOT" }, { 0x98, "CONNECT_RADIO_BOOT" }, { 0x99, "GET_RADIO_EXTRA_SCAN_RESULTS" }, { 0x9A, "STOP_REMOTE" }, { 0x9B, "RESTART_REMOTE" }, { 0x9C, "GET_REMOTE_STATUS" }, { 0x9D, "RESTART_REMOTE_APP" }, { 0x9E, "RESTART_REMOTE_BOOT" }, { 0x9F, "GET_RADIO_SCAN_POWER" }, { 0xA0, "BOOTLOADER_START_PROGRAM" }, { 0xA1, "GET_BOOTLOADER_PAGE_INFO" }, { 0xA2, "GET_BOOTLOADER_BLOCK_SIZES" }, { 0xA3, "START_BOOTLOADER_PAGE" }, { 0xA4, "WRITE_BOOTLOADER_CODE_BLOCK" }, { 0xA5, "FINISH_BOOTLOADER_PAGE" }, { 0xA6, "VERIFY_BOOTLOADER_PAGE" }, { 0xE0, "GET_GPIO_PORT_COUNT" }, { 0xE1, "GET_GPIO_PORT_NAME" }, { 0xE2, "GET_GPIO_PORT_INFO" }, { 0xE3, "GET_GPIO_PORT_VALUES" }, { 0xE4, "SET_GPIO_PORT_MODES" }, { 0xE5, "DISABLE_GPIO_PORT_OVERRIDES" }, { 0xE6, "GET_BUS_COUNTS" }, { 0xE7, "SET_SPI_CS_MODE" }, { 0xE8, "DO_SPI_TRANSFER" }, { 0xE9, "DO_I2C_WRITE" }, { 0xEA, "DO_I2C_READ" }, { 0xEB, "DO_I2C_WRITE_READ" }, { 0xEC, "DO_RADIO_FIXED_TEST" }, { 0xED, "DO_RADIO_SWEEP_TEST" }, { 0xF0, "GET_INFO_REGION_COUNT" }, { 0xF1, "GET_INFO_REGION_NAME" }, { 0xF2, "GET_INFO_REGION" }, { 0xF3, "GET_STACK_INFO" }, { 0xFC, "ECHO_RAW" }, { 0xFD, "ECHO_TRANSACTION" }, { 0xFE, "ECHO_PARAMS" }, { 0xFF, "REPLY_ERROR" }, { 0, NULL } }; static const value_string asphodel_err_vals[] = { { 0x01, "ERROR_CODE_UNSPECIFIED" }, { 0x02, "ERROR_CODE_MALFORMED_COMMAND" }, { 0x03, "ERROR_CODE_UNIMPLEMENTED_COMMAND" }, { 0x04, "ERROR_CODE_BAD_CMD_LENGTH" }, { 0x05, "ERROR_CODE_BAD_ADDRESS" }, { 0x06, "ERROR_CODE_BAD_INDEX" }, { 0x07, "ERROR_CODE_INVALID_DATA" }, { 0x08, "ERROR_CODE_UNSUPPORTED" }, { 0x09, "ERROR_CODE_BAD_STATE" }, { 0x0A, "ERROR_CODE_I2C_ERROR" }, { 0x0B, "ERROR_CODE_INCOMPLETE" }, { 0, NULL } }; static const true_false_string notify_connect_disconnect = { "Connect", "Disconnect" }; static int proto_asphodel = -1; // asphodel inquiry fields static int hf_asphodel_version = -1; static int hf_asphodel_identifier = -1; // asphodel response fields static int hf_asphodel_tcp_version = -1; static int hf_asphodel_connected = -1; static int hf_asphodel_max_incoming_param_length = -1; static int hf_asphodel_max_outgoing_param_length = -1; static int hf_asphodel_stream_packet_length = -1; static int hf_asphodel_protocol_type = -1; static int hf_asphodel_protocol_type_rf_power = -1; static int hf_asphodel_protocol_type_radio = -1; static int hf_asphodel_protocol_type_remote = -1; static int hf_asphodel_protocol_type_bootloader = -1; static int hf_asphodel_serial_number = -1; static int hf_asphodel_board_rev = -1; static int hf_asphodel_board_type = -1; static int hf_asphodel_build_info = -1; static int hf_asphodel_build_date = -1; static int hf_asphodel_user_tag1 = -1; static int hf_asphodel_user_tag2 = -1; static int hf_asphodel_remote_max_incoming_param_length = -1; static int hf_asphodel_remote_max_outgoing_param_length = -1; static int hf_asphodel_remote_stream_packet_length = -1; // asphodel tcp fields static int hf_asphodel_length = -1; static int hf_asphodel_type = -1; static int hf_asphodel_seq = -1; static int hf_asphodel_cmd = -1; static int hf_asphodel_err_code = -1; static int hf_asphodel_params = -1; static int hf_asphodel_stream_data = -1; static int hf_asphodel_notify = -1; static int hf_asphodel_notify_serial = -1; static gint ett_asphodel = -1; static gint ett_asphodel_protocol_type = -1; static expert_field ei_asphodel_bad_param_length = EI_INIT; static expert_field ei_asphodel_bad_length = EI_INIT; static expert_field ei_asphodel_cmd_error = EI_INIT; static expert_field ei_asphodel_unknown_type = EI_INIT; static dissector_handle_t asphodel_inquiry_handle; static dissector_handle_t asphodel_response_handle; static dissector_handle_t asphodel_tcp_handle; static void asphodel_fmt_version(gchar *result, guint32 version) { guint8 major = version >> 8; guint8 minor = (version >> 4) & 0x0F; guint8 subminor = version & 0x0F; snprintf(result, ITEM_LABEL_LENGTH, "%d.%d.%d", major, minor, subminor); } static int dissect_asphodel_tcp_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { proto_item *ti; proto_tree *asphodel_tree; guint32 length; ti = proto_tree_add_item(tree, proto_asphodel, tvb, 0, -1, ENC_NA); asphodel_tree = proto_item_add_subtree(ti, ett_asphodel); proto_tree_add_item_ret_uint(asphodel_tree, hf_asphodel_length, tvb, 0, 2, ENC_BIG_ENDIAN, &length); if (length == 0) { proto_item_set_text(ti, "Asphodel No Op"); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ", ", "No op"); } else { guint32 type; proto_tree_add_item_ret_uint(asphodel_tree, hf_asphodel_type, tvb, 2, 1, ENC_NA, &type); // handle the text switch (type) { case ASPHODEL_TCP_MSG_TYPE_DEVICE_CMD: proto_item_set_text(ti, "Asphodel Command"); break; case ASPHODEL_TCP_MSG_TYPE_REMOTE_CMD: proto_item_set_text(ti, "Asphodel Remote Command"); break; case ASPHODEL_TCP_MSG_TYPE_DEVICE_STREAM: proto_item_set_text(ti, "Asphodel Stream Data"); break; case ASPHODEL_TCP_MSG_TYPE_REMOTE_STREAM: proto_item_set_text(ti, "Asphodel Remote Stream Data"); break; case ASPHODEL_TCP_MSG_TYPE_REMOTE_NOTIFY: proto_item_set_text(ti, "Asphodel Notify"); break; default: // keep the default "Asphodel" item text break; } switch (type) { case ASPHODEL_TCP_MSG_TYPE_DEVICE_CMD: case ASPHODEL_TCP_MSG_TYPE_REMOTE_CMD: if (length >= 3) { guint32 cmd; proto_tree_add_item(asphodel_tree, hf_asphodel_seq, tvb, 3, 1, ENC_NA); proto_tree_add_item_ret_uint(asphodel_tree, hf_asphodel_cmd, tvb, 4, 1, ENC_NA, &cmd); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ", ", "%s", val_to_str(cmd, asphodel_cmd_vals, "Unknown type (0x%02x)")); if (cmd == ASPHODEL_CMD_REPLY_ERROR) { if (length >= 4) { proto_tree_add_item(asphodel_tree, hf_asphodel_err_code, tvb, 5, 1, ENC_NA); if (length >= 5) { proto_tree_add_item(asphodel_tree, hf_asphodel_params, tvb, 6, -1, ENC_NA); } } else { // not long enough expert_add_info(pinfo, ti, &ei_asphodel_bad_length); } // add a note that it's an error response expert_add_info(pinfo, ti, &ei_asphodel_cmd_error); } else { // normal command response if (length >= 4) { proto_tree_add_item(asphodel_tree, hf_asphodel_params, tvb, 5, -1, ENC_NA); } } } else { // not long enough expert_add_info(pinfo, ti, &ei_asphodel_bad_length); } break; case ASPHODEL_TCP_MSG_TYPE_DEVICE_STREAM: case ASPHODEL_TCP_MSG_TYPE_REMOTE_STREAM: if (length > 1) { proto_tree_add_item(asphodel_tree, hf_asphodel_stream_data, tvb, 3, -1, ENC_NA); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ", ", "Stream(%d)", length - 1); } else { // not long enough expert_add_info(pinfo, ti, &ei_asphodel_bad_length); } break; case ASPHODEL_TCP_MSG_TYPE_REMOTE_NOTIFY: if (length == 1) // disconnect { ti = proto_tree_add_boolean(asphodel_tree, hf_asphodel_notify, tvb, 2, 1, 0); proto_item_set_generated(ti); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ", ", "Notify Disconnect"); } else if (length == 6) // connect { proto_tree *protocol_type_tree; ti = proto_tree_add_boolean(asphodel_tree, hf_asphodel_notify, tvb, 2, 1, 1); proto_item_set_generated(ti); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ", ", "Notify Connect"); proto_tree_add_item(asphodel_tree, hf_asphodel_notify_serial, tvb, 3, 4, ENC_BIG_ENDIAN); // protocol type ti = proto_tree_add_item(asphodel_tree, hf_asphodel_protocol_type, tvb, 7, 1, ENC_NA); protocol_type_tree = proto_item_add_subtree(ti, ett_asphodel_protocol_type); proto_tree_add_item(protocol_type_tree, hf_asphodel_protocol_type_rf_power, tvb, 7, 1, ENC_NA); proto_tree_add_item(protocol_type_tree, hf_asphodel_protocol_type_radio, tvb, 7, 1, ENC_NA); proto_tree_add_item(protocol_type_tree, hf_asphodel_protocol_type_remote, tvb, 7, 1, ENC_NA); proto_tree_add_item(protocol_type_tree, hf_asphodel_protocol_type_bootloader, tvb, 7, 1, ENC_NA); } else { expert_add_info(pinfo, ti, &ei_asphodel_bad_length); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ", ", "Notify"); } break; default: // unknown message type expert_add_info(pinfo, ti, &ei_asphodel_unknown_type); col_append_sep_fstr(pinfo->cinfo, COL_INFO, ", ", "Unknown(%02x)", type); break; } } return tvb_captured_length(tvb); } static guint get_asphodel_tcp_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_) { return ((guint)tvb_get_ntohs(tvb, offset)) + 2; } static int dissect_asphodel_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) { col_set_str(pinfo->cinfo, COL_PROTOCOL, "Asphodel"); col_clear(pinfo->cinfo, COL_INFO); tcp_dissect_pdus(tvb, pinfo, tree, TRUE, 2, get_asphodel_tcp_pdu_len, dissect_asphodel_tcp_pdu, data); return tvb_reported_length(tvb); } static int dissect_asphodel_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { proto_item *ti; proto_tree *asphodel_tree; proto_tree *protocol_type_tree; conversation_t *conversation; guint offset; guint len; guint protocol_type; guint16 incoming_cmd_buffer_size; guint16 outgoing_cmd_buffer_size; guint16 remote_incoming_cmd_buffer_size; guint16 remote_outgoing_cmd_buffer_size; guint8 *serial_number; col_set_str(pinfo->cinfo, COL_PROTOCOL, "Asphodel"); ti = proto_tree_add_item(tree, proto_asphodel, tvb, 0, -1, ENC_NA); asphodel_tree = proto_item_add_subtree(ti, ett_asphodel); proto_item_set_text(ti, "Asphodel Response"); if (tvb_captured_length(tvb) < 16) { // too short return 0; } proto_tree_add_item(asphodel_tree, hf_asphodel_tcp_version, tvb, 0, 1, ENC_NA); proto_tree_add_item(asphodel_tree, hf_asphodel_connected, tvb, 1, 1, ENC_NA); incoming_cmd_buffer_size = tvb_get_ntohs(tvb, 2); ti = proto_tree_add_uint(asphodel_tree, hf_asphodel_max_incoming_param_length, tvb, 2, 2, incoming_cmd_buffer_size - 2); if (incoming_cmd_buffer_size <= 2) { expert_add_info(pinfo, ti, &ei_asphodel_bad_param_length); } outgoing_cmd_buffer_size = tvb_get_ntohs(tvb, 4); ti = proto_tree_add_uint(asphodel_tree, hf_asphodel_max_outgoing_param_length, tvb, 4, 2, outgoing_cmd_buffer_size - 2); if (outgoing_cmd_buffer_size <= 2) { expert_add_info(pinfo, ti, &ei_asphodel_bad_param_length); } proto_tree_add_item(asphodel_tree, hf_asphodel_stream_packet_length, tvb, 6, 2, ENC_BIG_ENDIAN); ti = proto_tree_add_item_ret_uint(asphodel_tree, hf_asphodel_protocol_type, tvb, 8, 1, ENC_NA, &protocol_type); protocol_type_tree = proto_item_add_subtree(ti, ett_asphodel_protocol_type); proto_tree_add_item(protocol_type_tree, hf_asphodel_protocol_type_rf_power, tvb, 8, 1, ENC_NA); proto_tree_add_item(protocol_type_tree, hf_asphodel_protocol_type_radio, tvb, 8, 1, ENC_NA); proto_tree_add_item(protocol_type_tree, hf_asphodel_protocol_type_remote, tvb, 8, 1, ENC_NA); proto_tree_add_item(protocol_type_tree, hf_asphodel_protocol_type_bootloader, tvb, 8, 1, ENC_NA); offset = 9; len = tvb_strsize(tvb, offset); proto_tree_add_item(asphodel_tree, hf_asphodel_serial_number, tvb, offset, len, ENC_UTF_8 | ENC_NA); serial_number = tvb_get_string_enc(pinfo->pool, tvb, offset, len, ENC_UTF_8); col_add_fstr(pinfo->cinfo, COL_INFO, "Asphodel Response (%s)", serial_number); offset += len; proto_tree_add_item(asphodel_tree, hf_asphodel_board_rev, tvb, offset, 1, ENC_NA); offset += 1; len = tvb_strsize(tvb, offset); proto_tree_add_item(asphodel_tree, hf_asphodel_board_type, tvb, offset, len, ENC_UTF_8 | ENC_NA); offset += len; len = tvb_strsize(tvb, offset); proto_tree_add_item(asphodel_tree, hf_asphodel_build_info, tvb, offset, len, ENC_UTF_8 | ENC_NA); offset += len; len = tvb_strsize(tvb, offset); proto_tree_add_item(asphodel_tree, hf_asphodel_build_date, tvb, offset, len, ENC_UTF_8 | ENC_NA); offset += len; len = tvb_strsize(tvb, offset); proto_tree_add_item(asphodel_tree, hf_asphodel_user_tag1, tvb, offset, len, ENC_UTF_8 | ENC_NA); offset += len; len = tvb_strsize(tvb, offset); proto_tree_add_item(asphodel_tree, hf_asphodel_user_tag2, tvb, offset, len, ENC_UTF_8 | ENC_NA); offset += len; if (protocol_type & ASPHODEL_PROTOCOL_TYPE_RADIO) { remote_incoming_cmd_buffer_size = tvb_get_ntohs(tvb, 2); ti = proto_tree_add_uint(asphodel_tree, hf_asphodel_remote_max_incoming_param_length, tvb, offset, 2, remote_incoming_cmd_buffer_size - 2); if (remote_incoming_cmd_buffer_size <= 2) { expert_add_info(pinfo, ti, &ei_asphodel_bad_param_length); } remote_outgoing_cmd_buffer_size = tvb_get_ntohs(tvb, 4); ti = proto_tree_add_uint(asphodel_tree, hf_asphodel_remote_max_outgoing_param_length, tvb, offset + 2, 2, remote_outgoing_cmd_buffer_size - 2); if (remote_outgoing_cmd_buffer_size <= 2) { expert_add_info(pinfo, ti, &ei_asphodel_bad_param_length); } proto_tree_add_item(asphodel_tree, hf_asphodel_remote_stream_packet_length, tvb, offset + 4, 2, ENC_BIG_ENDIAN); } conversation = find_conversation(pinfo->num, &pinfo->src, 0, CONVERSATION_UDP, pinfo->srcport, 0, NO_ADDR_B | NO_PORT_B); if (!conversation) { conversation = conversation_new(pinfo->num, &pinfo->src, 0, CONVERSATION_TCP, pinfo->srcport, 0, NO_ADDR2 | NO_PORT2); conversation_set_dissector(conversation, asphodel_tcp_handle); } return tvb_reported_length(tvb); } static int dissect_asphodel_inquiry(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_) { proto_item *ti; proto_tree *asphodel_tree; conversation_t *conversation; col_set_str(pinfo->cinfo, COL_PROTOCOL, "Asphodel"); col_set_str(pinfo->cinfo, COL_INFO, "Asphodel Inquiry"); if (tree != NULL) { ti = proto_tree_add_item(tree, proto_asphodel, tvb, 0, -1, ENC_NA); asphodel_tree = proto_item_add_subtree(ti, ett_asphodel); proto_item_set_text(ti, "Asphodel Inquiry"); if (tvb_captured_length(tvb) >= 2) { proto_tree_add_item(asphodel_tree, hf_asphodel_version, tvb, 0, 2, ENC_BIG_ENDIAN); if (tvb_captured_length(tvb) > 2) { proto_tree_add_item(asphodel_tree, hf_asphodel_identifier, tvb, 2, -1, ENC_UTF_8 | ENC_NA); } } } conversation = find_conversation(pinfo->num, &pinfo->src, 0, CONVERSATION_UDP, pinfo->srcport, 0, NO_ADDR_B | NO_PORT_B); if (!conversation) { conversation = conversation_new(pinfo->num, &pinfo->src, 0, CONVERSATION_UDP, pinfo->srcport, 0, NO_ADDR2 | NO_PORT2); conversation_set_dissector(conversation, asphodel_response_handle); } return tvb_reported_length(tvb); } static gboolean dissect_asphodel_heur_udp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data) { if (tvb_captured_length(tvb) < 11) { return FALSE; } if (tvb_memeql(tvb, 2, (const guint8*)"Asphodel", 9) != 0) { return FALSE; } dissect_asphodel_inquiry(tvb, pinfo, tree, data); return TRUE; } void proto_register_asphodel(void) { expert_module_t *expert_asphodel; static hf_register_info hf[] = { { &hf_asphodel_version, { "Version", "asphodel.version", FT_UINT16, BASE_CUSTOM, CF_FUNC(asphodel_fmt_version), 0x0, NULL, HFILL } }, { &hf_asphodel_identifier, { "Identifier", "asphodel.identifier", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_tcp_version, { "TCP Version", "asphodel.tcp_version", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_connected, { "Connected", "asphodel.connected", FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_max_incoming_param_length, { "Max Incoming Param Length", "asphodel.max_incoming_param_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_max_outgoing_param_length, { "Max Outgoing Param Length", "asphodel.max_outgoing_param_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_stream_packet_length, { "Stream Packet Length", "asphodel.stream_packet_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_protocol_type, { "Protocol Type", "asphodel.protocol_type", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_protocol_type_rf_power, { "RF Power", "asphodel.protocol_type.rf_power", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), ASPHODEL_PROTOCOL_TYPE_RF_POWER, NULL, HFILL } }, { &hf_asphodel_protocol_type_radio, { "Radio", "asphodel.protocol_type.radio", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), ASPHODEL_PROTOCOL_TYPE_RADIO, NULL, HFILL } }, { &hf_asphodel_protocol_type_remote, { "Remote", "asphodel.protocol_type.remote", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), ASPHODEL_PROTOCOL_TYPE_REMOTE, NULL, HFILL } }, { &hf_asphodel_protocol_type_bootloader, { "Bootloader", "asphodel.protocol_type.bootloader", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), ASPHODEL_PROTOCOL_TYPE_BOOTLOADER, NULL, HFILL } }, { &hf_asphodel_serial_number, { "Serial Number", "asphodel.serial_number", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_board_rev, { "Board Rev", "asphodel.board_rev", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_board_type, { "Board Type", "asphodel.board_type", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_build_info, { "Build Info", "asphodel.build_info", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_build_date, { "Build Date", "asphodel.build_date", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_user_tag1, { "User Tag 1", "asphodel.user_tag1", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_user_tag2, { "User Tag 2", "asphodel.user_tag2", FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_remote_max_incoming_param_length, { "Remote Max Incoming Param Length", "asphodel.remote_max_incoming_param_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_remote_max_outgoing_param_length, { "Remote Max Outgoing Param Length", "asphodel.remote_max_outgoing_param_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_remote_stream_packet_length, { "Remote Stream Packet Length", "asphodel.remote_stream_packet_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_length, { "Length", "asphodel.length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_type, { "Type", "asphodel.type", FT_UINT8, BASE_HEX, VALS(asphodel_type_vals), 0x0, NULL, HFILL } }, { &hf_asphodel_seq, { "Sequence", "asphodel.seq", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_cmd, { "Command", "asphodel.cmd", FT_UINT8, BASE_HEX, VALS(asphodel_cmd_vals), 0x0, NULL, HFILL } }, { &hf_asphodel_err_code, { "Error Code", "asphodel.err_code", FT_UINT8, BASE_HEX, VALS(asphodel_err_vals), 0x0, NULL, HFILL } }, { &hf_asphodel_params, { "Command Parameter Data", "asphodel.params", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_stream_data, { "Stream Data", "asphodel.stream_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_asphodel_notify, { "Notify", "asphodel.notify", FT_BOOLEAN, BASE_NONE, TFS(¬ify_connect_disconnect), 0x0, NULL, HFILL } }, { &hf_asphodel_notify_serial, { "Notify Serial Number", "asphodel.notify_serial", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, }; static gint *ett[] = { &ett_asphodel, &ett_asphodel_protocol_type, }; static ei_register_info ei[] = { { &ei_asphodel_bad_param_length, { "asphodel.bad_param_length", PI_PROTOCOL, PI_WARN, "Bad parameter length", EXPFILL } }, { &ei_asphodel_bad_length, { "asphodel.bad_cmd_length", PI_PROTOCOL, PI_WARN, "Bad length", EXPFILL } }, { &ei_asphodel_cmd_error, { "asphodel.cmd_error", PI_RESPONSE_CODE, PI_NOTE, "Command error response", EXPFILL } }, { &ei_asphodel_unknown_type, { "asphodel.unknown_type", PI_PROTOCOL, PI_WARN, "Unknown message type", EXPFILL } }, }; /* Register the protocol name and description */ proto_asphodel = proto_register_protocol("Asphodel", "Asphodel", "asphodel"); /* Register the dissectors */ asphodel_inquiry_handle = register_dissector("asphodel_inquiry", dissect_asphodel_inquiry, proto_asphodel); asphodel_response_handle = register_dissector("asphodel_response", dissect_asphodel_response, proto_asphodel); asphodel_tcp_handle = register_dissector("asphodel_tcp", dissect_asphodel_tcp, proto_asphodel); /* Required function calls to register the header fields and subtrees */ proto_register_field_array(proto_asphodel, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); /* Required function calls to register expert items */ expert_asphodel = expert_register_protocol(proto_asphodel); expert_register_field_array(expert_asphodel, ei, array_length(ei)); } void proto_reg_handoff_asphodel(void) { heur_dissector_add("udp", dissect_asphodel_heur_udp, "Asphodel over UDP", "asphodel_inquiry", proto_asphodel, HEURISTIC_ENABLE); dissector_add_for_decode_as("udp.port", asphodel_response_handle); dissector_add_for_decode_as("tcp.port", asphodel_tcp_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: */