/* packet-iso10681.c

 * ISO 10681-2 ISO FlexRay TP

 * By Dr. Lars Voelker <lars.voelker@technica-engineering.de>

 * Copyright 2021-2023 Dr. Lars Voelker

 *

 * Wireshark - Network traffic analyzer

 * By Gerald Combs <gerald@wireshark.org>

 * Copyright 1998 Gerald Combs

 *

 * SPDX-License-Identifier: GPL-2.0-or-later

 *

 * Also see packet-iso15765.c / packet-iso15765.h

 */

#include "config.h"

#include <epan/packet.h>

#include <epan/prefs.h>

#include <epan/decode_as.h>

#include <epan/reassemble.h>

#include <epan/expert.h>

#include <epan/proto_data.h>

#include "packet-iso10681.h"

#include "packet-flexray.h"

void proto_register_iso10681(void);

void proto_reg_handoff_iso10681(void);

/* StartFrame or StartFrameAck */

#define ISO10681_TYPE_MASK                  0xF0

#define ISO10681_TYPE_START_FRAME           4

#define ISO10681_TYPE_CONSECUTIVE_FRAME_1   5

#define ISO10681_TYPE_CONSECUTIVE_FRAME_2   6

#define ISO10681_TYPE_CONSECUTIVE_FRAME_EOB 7

#define ISO10681_TYPE_FLOW_CONTROL          8

#define ISO10681_TYPE_LAST_FRAME            9

#define ISO10681_TYPE_PART2_MASK            0x0F

#define ISO10681_FLOW_STATUS_CTS            3

#define ISO10681_FLOW_STATUS_ACK_RETRY      4

#define ISO10681_FLOW_STATUS_WAIT           5

#define ISO10681_FLOW_STATUS_ABORT          6

#define ISO10681_FLOW_STATUS_OVERFLOW       7

typedef struct iso10681_identifier {

    uint32_t id;

    uint32_t seq;

    uint16_t frag_id;

    bool last;

} iso10681_identifier_t;

typedef struct iso10681_frame {

    uint32_t seq;

    uint32_t offset;

    uint32_t len;

    bool error;

    bool complete;

    uint16_t last_frag_id;

    uint8_t  frag_id_high[16];

} iso10681_frame_t;

static const value_string iso10681_message_types[] = {

    {ISO10681_TYPE_START_FRAME,           "Start Frame"},

    {ISO10681_TYPE_CONSECUTIVE_FRAME_1,   "Consecutive Frame 1"},

    {ISO10681_TYPE_CONSECUTIVE_FRAME_2,   "Consecutive Frame 2"},

    {ISO10681_TYPE_CONSECUTIVE_FRAME_EOB, "Consecutive Frame EOB"},

    {ISO10681_TYPE_FLOW_CONTROL,          "Flow Control"},

    {ISO10681_TYPE_LAST_FRAME,            "Last Frame"},

    {0, NULL}

};

static const value_string iso10681_flow_status_values[] = {

    {ISO10681_FLOW_STATUS_CTS,            "Continue to Send"},

    {ISO10681_FLOW_STATUS_ACK_RETRY,      "Ack/Retry"},

    {ISO10681_FLOW_STATUS_WAIT,           "Wait"},

    {ISO10681_FLOW_STATUS_ABORT,          "Abort"},

    {ISO10681_FLOW_STATUS_OVERFLOW,       "Overflow"},

    {0, NULL}

};

static const value_string iso10681_start_type2_values[] = {

    {0,      "Unacknowledged"},

    {1,      "Acknowledged"},

    {0, NULL}

};

static const value_string iso10681_fc_bc_scexp_values[] = {

    {0,      "0 cycles"},

    {1,      "1 cycle"},

    {2,      "3 cycles"},

    {3,      "7 cycles"},

    {4,      "15 cycles"},

    {5,      "31 cycles"},

    {6,      "63 cycles"},

    {7,      "127 cycles"},

    {0, NULL}

};

static const value_string iso10681_fc_ack_values[] = {

    {0,      "Acknowledge"},

    {1,      "Retry Request"},

    {0, NULL}

};

static int hf_iso10681_target_address;

static int hf_iso10681_source_address;

static int hf_iso10681_type;

static int hf_iso10681_type2;

static int hf_iso10681_frame_payload_length;

static int hf_iso10681_message_length;

static int hf_iso10681_sequence_number;

static int hf_iso10681_fc_flow_status;

static int hf_iso10681_fc_bandwidth_control;

static int hf_iso10681_fc_bc_separation_cycle_exp;

static int hf_iso10681_fc_bc_max_num_pdu_per_cycle;

static int hf_iso10681_fc_buffer_size;

static int hf_iso10681_fc_ack;

static int hf_iso10681_fc_byte_position;

static int ett_iso10681;

static int ett_iso10681_bandwidth_control;

static expert_field ei_iso10681_message_type_bad;

static int proto_iso10681;

static dissector_handle_t iso10681_handle_flexray;

static dissector_table_t subdissector_table;

static range_t   *iso10681_flexray_ids;

static bool       iso10681_spread_over_multiple_cycles = true;

static reassembly_table iso10681_reassembly_table;

static wmem_map_t *iso10681_frame_table;

static wmem_map_t *iso10681_seq_table;

static uint32_t    next_seqnum;

static int hf_iso10681_fragments;

static int hf_iso10681_fragment;

static int hf_iso10681_fragment_overlap;

static int hf_iso10681_fragment_overlap_conflicts;

static int hf_iso10681_fragment_multiple_tails;

static int hf_iso10681_fragment_too_long_fragment;

static int hf_iso10681_fragment_error;

static int hf_iso10681_fragment_count;

static int hf_iso10681_reassembled_in;

static int hf_iso10681_reassembled_length;

static int ett_iso10681_fragment;

static int ett_iso10681_fragments;

static const fragment_items iso10681_frag_items = {

    /* Fragment subtrees */

    &ett_iso10681_fragment,

    &ett_iso10681_fragments,

    /* Fragment fields */

    &hf_iso10681_fragments,

    &hf_iso10681_fragment,

    &hf_iso10681_fragment_overlap,

    &hf_iso10681_fragment_overlap_conflicts,

    &hf_iso10681_fragment_multiple_tails,

    &hf_iso10681_fragment_too_long_fragment,

    &hf_iso10681_fragment_error,

    &hf_iso10681_fragment_count,

    /* Reassembled in field */

    &hf_iso10681_reassembled_in,

    /* Reassembled length field */

    &hf_iso10681_reassembled_length,

    /* Reassembled data field */

    NULL,

    "ISO10681 fragments"

};

static uint32_t

iso10681_seqnum(uint32_t frame_id, bool new_seqnum) {

    uint32_t  *ret;

    ret = (uint32_t *)wmem_map_lookup(iso10681_seq_table, GUINT_TO_POINTER(frame_id));

    if (ret == NULL) {

        ret = wmem_new0(wmem_file_scope(), uint32_t);

        *ret = next_seqnum++;

        wmem_map_insert(iso10681_seq_table, GUINT_TO_POINTER(frame_id), ret);

    } else {

        if (new_seqnum) {

            (*ret) = next_seqnum++;

        }

    }

    return *ret;

}

static int

dissect_iso10681(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, uint32_t frame_id, uint32_t frame_length _U_) {

    proto_tree *iso10681_tree;

    proto_item *ti;

    proto_item *ti_type;

    uint32_t    type;

    uint32_t    offset;

    iso10681_identifier_t* iso10681_info;

    bool        fragmented = false;

    uint32_t    seqnum = 0;

    uint32_t    data_length = 0;

    uint32_t    full_len = 0;

    uint32_t    target_addr = 0;

    uint32_t    source_addr = 0;

    tvbuff_t*   next_tvb = NULL;

    bool        complete = false;

    col_set_str(pinfo->cinfo, COL_PROTOCOL, "ISO10681");

    col_clear(pinfo->cinfo, COL_INFO);

    iso10681_info = (iso10681_identifier_t *)p_get_proto_data(wmem_file_scope(), pinfo, proto_iso10681, 0);

    if (!iso10681_info) {

        iso10681_info = wmem_new0(wmem_file_scope(), iso10681_identifier_t);

        iso10681_info->id = frame_id;

        iso10681_info->last = false;

        p_add_proto_data(wmem_file_scope(), pinfo, proto_iso10681, 0, iso10681_info);

    }

    ti = proto_tree_add_item(tree, proto_iso10681, tvb, 0, -1, ENC_NA);

    iso10681_tree = proto_item_add_subtree(ti, ett_iso10681);

    proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_target_address, tvb, 0, 2, ENC_BIG_ENDIAN, &target_addr);

    proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_source_address, tvb, 2, 2, ENC_BIG_ENDIAN, &source_addr);

    offset = 4;

    ti_type = proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_type, tvb, offset, 1, ENC_BIG_ENDIAN, &type);

    col_add_str(pinfo->cinfo, COL_INFO, val_to_str(pinfo->pool, type, iso10681_message_types, "Unknown (0x%02x)"));

    switch (type) {

        case ISO10681_TYPE_START_FRAME: {

            uint32_t type2_value;

            proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_type2, tvb, offset, 1, ENC_BIG_ENDIAN, &type2_value);

            col_append_fstr(pinfo->cinfo, COL_INFO, " %s", val_to_str(pinfo->pool, type2_value, iso10681_start_type2_values, "Unknown (0x%x)"));

            proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_frame_payload_length, tvb, offset + 1, 1, ENC_BIG_ENDIAN, &data_length);

            proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN, &full_len);

            offset += 4;

            fragmented = true;

            seqnum = 0;

            if (!(pinfo->fd->visited)) {

                iso10681_frame_t *iso10681_frame = wmem_new0(wmem_file_scope(), iso10681_frame_t);

                iso10681_frame->seq = iso10681_info->seq = iso10681_seqnum(frame_id, true);

                iso10681_frame->len = full_len;

                wmem_map_insert(iso10681_frame_table, GUINT_TO_POINTER(iso10681_info->seq), iso10681_frame);

            }

            col_append_fstr(pinfo->cinfo, COL_INFO, " (Segment Length: %d, Total Len: %d)", data_length, full_len);

            break;

        }

        case ISO10681_TYPE_CONSECUTIVE_FRAME_1:

        case ISO10681_TYPE_CONSECUTIVE_FRAME_2:

        case ISO10681_TYPE_CONSECUTIVE_FRAME_EOB: {

            proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_sequence_number, tvb, offset, 1, ENC_BIG_ENDIAN, &seqnum);

            proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_frame_payload_length, tvb, offset + 1, 1, ENC_BIG_ENDIAN, &data_length);

            offset += 2;

            fragmented = true;

            if (!(pinfo->fd->visited)) {

                iso10681_info->seq = iso10681_seqnum(frame_id, false);

            }

            col_append_fstr(pinfo->cinfo, COL_INFO, " (Segment Length: %d, Sequence Number: %d)", data_length, seqnum);

            break;

        }

        case ISO10681_TYPE_LAST_FRAME: {

            proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_frame_payload_length, tvb, offset + 1, 1, ENC_BIG_ENDIAN, &data_length);

            proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_message_length, tvb, offset + 2, 2, ENC_BIG_ENDIAN, &full_len);

            offset += 4;

            fragmented = true;

            if (!(pinfo->fd->visited)) {

                iso10681_info->seq = iso10681_seqnum(frame_id, false);

            }

            col_append_fstr(pinfo->cinfo, COL_INFO, " (Segment Length: %d, Total Len: %d)", data_length, full_len);

            break;

        }

        case ISO10681_TYPE_FLOW_CONTROL: {

            unsigned flow_status = 0;

            proto_tree_add_item_ret_uint(iso10681_tree, hf_iso10681_fc_flow_status, tvb, offset, 1, ENC_BIG_ENDIAN, &flow_status);

            switch (flow_status) {

            case ISO10681_FLOW_STATUS_CTS: {

                static int * const bandwidth_control[] = {

                    &hf_iso10681_fc_bc_max_num_pdu_per_cycle,

                    &hf_iso10681_fc_bc_separation_cycle_exp,

                    NULL

                };

                proto_tree_add_bitmask(iso10681_tree, tvb, offset + 1, hf_iso10681_fc_bandwidth_control, ett_iso10681_bandwidth_control,

                                       bandwidth_control, ENC_BIG_ENDIAN);

                proto_tree_add_item(iso10681_tree, hf_iso10681_fc_buffer_size, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

                break;

            }

            case ISO10681_FLOW_STATUS_ACK_RETRY:

                proto_tree_add_item(iso10681_tree, hf_iso10681_fc_ack, tvb, offset + 1, 1, ENC_BIG_ENDIAN);

                proto_tree_add_item(iso10681_tree, hf_iso10681_fc_byte_position, tvb, offset + 2, 2, ENC_BIG_ENDIAN);

                break;

            }

            col_append_fstr(pinfo->cinfo, COL_INFO, " (Flow Status: %s)", val_to_str(pinfo->pool, flow_status, iso10681_flow_status_values, "unknown (0x%x)"));

            break;

        }

        default:

            expert_add_info_format(pinfo, ti_type, &ei_iso10681_message_type_bad, "Bad Message Type value %u", type);

            return offset;

    }

    /* show data */

    if (data_length > 0) {

        col_append_fstr(pinfo->cinfo, COL_INFO, "  %s", tvb_bytes_to_str_punct(pinfo->pool, tvb, offset, data_length, ' '));

    }

    if (fragmented) {

        tvbuff_t *new_tvb = NULL;

        iso10681_frame_t *iso10681_frame;

        uint16_t frag_id = seqnum;

        /* Get frame information */

        iso10681_frame = (iso10681_frame_t *)wmem_map_lookup(iso10681_frame_table, GUINT_TO_POINTER(iso10681_info->seq));

        if (iso10681_frame != NULL) {

            if (type == ISO10681_TYPE_LAST_FRAME) {

                frag_id = iso10681_frame->last_frag_id + 1;

            }

            if (!(pinfo->fd->visited)) {

                DISSECTOR_ASSERT(frag_id < 16);

                uint16_t tmp = iso10681_frame->frag_id_high[frag_id]++;

                /* Make sure that we assert on using more than 4096 (16*255) segments.*/

                DISSECTOR_ASSERT(iso10681_frame->frag_id_high[frag_id] != 0);

                frag_id += tmp * 16;

                /* Save the frag_id for subsequent dissection */

                iso10681_info->frag_id = frag_id;

            }

            if (!iso10681_frame->error) {

                bool           save_fragmented = pinfo->fragmented;

                uint32_t       len = data_length;

                fragment_head *frag_msg;

                /* Check if it's the last packet */

                if (!(pinfo->fd->visited)) {

                    /* Update the last_frag_id */

                    if (frag_id > iso10681_frame->last_frag_id) {

                        iso10681_frame->last_frag_id = frag_id;

                    }

                    iso10681_frame->offset += len;

                    if (iso10681_frame->offset >= iso10681_frame->len) {

                        iso10681_info->last = true;

                        iso10681_frame->complete = true;

                        len -= (iso10681_frame->offset - iso10681_frame->len);

                    }

                }

                pinfo->fragmented = true;

                /* Add fragment to fragment table */

                frag_msg = fragment_add_seq_check(&iso10681_reassembly_table, tvb, offset, pinfo, iso10681_info->seq, NULL,

                                                  iso10681_info->frag_id, len, !iso10681_info->last);

                new_tvb = process_reassembled_data(tvb, offset, pinfo, "Reassembled Message", frag_msg, &iso10681_frag_items, NULL,

                                                   iso10681_tree);

                if (frag_msg && frag_msg->reassembled_in != pinfo->num) {

                    col_append_frame_number(pinfo, COL_INFO, " [Reassembled in #%u]", frag_msg->reassembled_in);

                }

                pinfo->fragmented = save_fragmented;

            }

            if (new_tvb) {

                /* This is a complete TVB to dissect */

                next_tvb = new_tvb;

                complete = true;

            } else {

                next_tvb = tvb_new_subset_length(tvb, offset, data_length);

            }

        }

    }

    if (next_tvb) {

        iso10681_info_t iso10681data;

        iso10681data.id = frame_id;

        iso10681data.len = frame_length;

        iso10681data.target_address = target_addr;

        iso10681data.source_address = source_addr;

        if (!complete || !dissector_try_payload_with_data(subdissector_table, next_tvb, pinfo, tree, true, &iso10681data)) {

            call_data_dissector(next_tvb, pinfo, tree);

        }

    }

    return tvb_captured_length(tvb);

}

static int

dissect_iso10681_flexray(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data) {

    DISSECTOR_ASSERT(data);

    flexray_info_t *flexray_info = (flexray_info_t *)data;

    uint32_t id = flexray_flexrayinfo_to_flexrayid(flexray_info);

    if (iso10681_spread_over_multiple_cycles) {

        /* masking out the cycle */

        id |= FLEXRAY_ID_CYCLE_MASK;

    }

    return dissect_iso10681(tvb, pinfo, tree, id, tvb_captured_length(tvb));

}

void

proto_register_iso10681(void) {

    module_t *iso10681_module;

    static hf_register_info hf[] = {

        { &hf_iso10681_source_address, {

            "Source Address", "iso10681.source_address", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } },

        { &hf_iso10681_target_address, {

            "Target Address", "iso10681.target_address", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } },

        { &hf_iso10681_type, {

            "Type", "iso10681.type", FT_UINT8, BASE_HEX, VALS(iso10681_message_types), ISO10681_TYPE_MASK, NULL, HFILL } },

        { &hf_iso10681_type2, {

            "Type Ack", "iso10681.type_ack", FT_UINT8, BASE_HEX, VALS(iso10681_start_type2_values), ISO10681_TYPE_PART2_MASK, NULL, HFILL } },

        { &hf_iso10681_frame_payload_length, {

            "Frame Payload Length", "iso10681.frame_payload_length", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },

        { &hf_iso10681_message_length, {

            "Message Length", "iso10681.message_length", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } },

        { &hf_iso10681_sequence_number, {

            "Sequence Number", "iso10681.sequence_number", FT_UINT8, BASE_DEC, NULL, ISO10681_TYPE_PART2_MASK, NULL, HFILL } },

        { &hf_iso10681_fc_flow_status, {

            "Flow Status", "iso10681.flow_status", FT_UINT8, BASE_DEC, VALS(iso10681_flow_status_values), ISO10681_TYPE_PART2_MASK, NULL, HFILL } },

        { &hf_iso10681_fc_bandwidth_control, {

            "Bandwidth Control", "iso10681.bandwidth_control", FT_UINT8, BASE_DEC, NULL, 0, NULL, HFILL } },

        { &hf_iso10681_fc_bc_separation_cycle_exp, {

            "Separation Cycle Exp", "iso10681.bandwidth_control.separation_cycle_exp", FT_UINT8, BASE_DEC, VALS(iso10681_fc_bc_scexp_values), 0x07, NULL, HFILL } },

        { &hf_iso10681_fc_bc_max_num_pdu_per_cycle, {

            "Max Number of PDUs per Cycle", "iso10681.bandwidth_control.max_number_pdus_per_cycle", FT_UINT8, BASE_DEC, NULL, 0xF8, NULL, HFILL } },

        { &hf_iso10681_fc_buffer_size, {

            "Buffer Size", "iso10681.buffer_size", FT_UINT16, BASE_DEC, NULL, 0, NULL, HFILL } },

        { &hf_iso10681_fc_ack, {

            "Ack", "iso10681.ack", FT_UINT8, BASE_HEX, VALS(iso10681_fc_ack_values), 0, NULL, HFILL } },

        { &hf_iso10681_fc_byte_position, {

            "Byte Position", "iso10681.byte_position", FT_UINT16, BASE_HEX, NULL, 0, NULL, HFILL } },

        { &hf_iso10681_fragments, {

            "Message fragments", "iso10681.fragments", FT_NONE, BASE_NONE, NULL, 0x00, NULL, HFILL } },

        { &hf_iso10681_fragment, {

            "Message fragment", "iso10681.fragment", FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL } },

        { &hf_iso10681_fragment_overlap, {

            "Message fragment overlap", "iso10681.fragment.overlap", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } },

        { &hf_iso10681_fragment_overlap_conflicts, {

            "Message fragment overlapping with conflicting data", "iso10681.fragment.overlap.conflicts", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } },

        { &hf_iso10681_fragment_multiple_tails, {

            "Message has multiple tail fragments", "iso10681.fragment.multiple_tails", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } },

        { &hf_iso10681_fragment_too_long_fragment, {

            "Message fragment too long", "iso10681.fragment.too_long_fragment", FT_BOOLEAN, BASE_NONE, NULL, 0x00, NULL, HFILL } },

        { &hf_iso10681_fragment_error, {

            "Message defragmentation error", "iso10681.fragment.error", FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL } },

        { &hf_iso10681_fragment_count, {

            "Message fragment count", "iso10681.fragment.count", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL } },

        { &hf_iso10681_reassembled_in, {

            "Reassembled in", "iso10681.reassembled.in", FT_FRAMENUM, BASE_NONE, NULL, 0x00, NULL, HFILL } },

        { &hf_iso10681_reassembled_length, {

            "Reassembled length", "iso10681.reassembled.length", FT_UINT32, BASE_DEC, NULL, 0x00, NULL, HFILL } },

    };

    /* Setup protocol subtree array */

    static int *ett[] = {

        &ett_iso10681,

        &ett_iso10681_bandwidth_control,

        &ett_iso10681_fragment,

        &ett_iso10681_fragments,

    };

    static ei_register_info ei[] = {

        {

            &ei_iso10681_message_type_bad, { "iso10681.message_type.bad", PI_MALFORMED, PI_ERROR, "Bad Message Type value", EXPFILL }

        },

    };

    expert_module_t* expert_iso10681;

    proto_iso10681 = proto_register_protocol("ISO10681 Protocol", "ISO 10681", "iso10681");

    iso10681_handle_flexray = register_dissector("iso10681", dissect_iso10681_flexray, proto_iso10681);

    /* Register configuration options */

    iso10681_module = prefs_register_protocol(proto_iso10681, proto_reg_handoff_iso10681);

    prefs_register_range_preference(iso10681_module, "flexray.flexrayids", "FlexRay IDs",

        "FlexRay IDs (combined) - 4bit Bus-ID (0 any), 4bit Channel, 16bit Frame-ID, 8bit Cycle (0xff any)",

        &iso10681_flexray_ids, 0xffffffff);

    prefs_register_bool_preference(iso10681_module, "spread_over_cycles", "Ignore Cycle when matching",

        "TP frames are spread over multiple cycles. Cycle is ignored for matching.",

        &iso10681_spread_over_multiple_cycles);

    proto_register_field_array(proto_iso10681, hf, array_length(hf));

    proto_register_subtree_array(ett, array_length(ett));

    expert_iso10681 = expert_register_protocol(proto_iso10681);

    expert_register_field_array(expert_iso10681, ei, array_length(ei));

    iso10681_seq_table = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(), g_direct_hash, g_direct_equal);

    iso10681_frame_table = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(), g_direct_hash, g_direct_equal);

    reassembly_table_register(&iso10681_reassembly_table, &addresses_reassembly_table_functions);

    subdissector_table = register_decode_as_next_proto(proto_iso10681, "iso10681.subdissector", "ISO10681 next level dissector", NULL);

}

void

proto_reg_handoff_iso10681(void) {

    static bool initialized = false;

    if (!initialized) {

        dissector_add_for_decode_as("flexray.subdissector", iso10681_handle_flexray);

        initialized = true;

    } else {

        dissector_delete_all("flexray.combined_id", iso10681_handle_flexray);

    }

    dissector_add_uint_range("flexray.combined_id", iso10681_flexray_ids, iso10681_handle_flexray);

}

/*

 * 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:

 */