/* packet-gsm_osmux.c

 * Routines for packet dissection of Osmux voice/signalling multiplex protocol

 * Copyright 2016-2024 sysmocom s.f.m.c. GmbH <info@sysmocom.de>

 * Written by Daniel Willmann <dwillmann@sysmocom.de>,

 *            Pau Espin Pedrol <pespin@sysmocom.de>

 *

 * Wireshark - Network traffic analyzer

 * By Gerald Combs <gerald@wireshark.org>

 * Copyright 1998 Gerald Combs

 *

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

 */

 /* FIXME: I didn't find a way yet to reliably differentiate between streams

  * using same IPs+PORTs+CID over time. That means: if a recording session is

  * long enough, a call may have allocated a CID which was already used by

  * someone else in the past, and wireshark will handle those two calls as the

  * same stream. This is bad specially for statistics such as jitter.

  */

#include "config.h"

#include <string.h>

#include <epan/conversation.h>

#include <epan/packet.h>

#include <epan/stats_tree.h>

#include <epan/tap.h>

#include <epan/to_str.h>

#include <epan/strutil.h>

/* un-comment the following as well as this line in conversation.c, to enable debug printing */

/* #define DEBUG_CONVERSATION */

#include "conversation_debug.h"

void proto_register_osmux(void);

void proto_reg_handoff_osmux(void);

#define OSMUX_FT_SIGNAL 0x00

#define OSMUX_FT_AMR 0x01

#define OSMUX_FT_DUMMY 0x02

static const value_string osmux_ft_vals[] =

{

    {OSMUX_FT_SIGNAL, "Signalling"},

    {OSMUX_FT_AMR, "AMR"},

    {OSMUX_FT_DUMMY, "Dummy"},

    {0, NULL}

};

#define AMR_FT_0    0

#define AMR_FT_1    1

#define AMR_FT_2    2

#define AMR_FT_3    3

#define AMR_FT_4    4

#define AMR_FT_5    5

#define AMR_FT_6    6

#define AMR_FT_7    7

#define AMR_FT_SID  8

#define AMR_FT_MAX  9

static const value_string amr_ft_names[] =

{

    {AMR_FT_0, "AMR 4.75"},

    {AMR_FT_1, "AMR 5.15"},

    {AMR_FT_2, "AMR 5.90"},

    {AMR_FT_3, "AMR 6.70"},

    {AMR_FT_4, "AMR 7.40"},

    {AMR_FT_5, "AMR 7.95"},

    {AMR_FT_6, "AMR 10.2"},

    {AMR_FT_7, "AMR 12.2"},

    {AMR_FT_SID, "AMR SID"},

    {0, NULL}

};

static uint8_t amr_ft_bytes[AMR_FT_MAX] = {12, 13, 15, 17, 19, 20, 26, 31, 5};

#define OSMUX_AMR_HEADER_LEN 4

/* Initialize the protocol and registered fields */

static dissector_handle_t osmux_handle;

static int proto_osmux;

static int osmux_tap;

static int hf_osmux_stream_id;

static int hf_osmux_ft_ctr;

static int hf_osmux_rtp_m;

static int hf_osmux_ft;

static int hf_osmux_ctr;

static int hf_osmux_amr_f;

static int hf_osmux_amr_q;

static int hf_osmux_seq;

static int hf_osmux_circuit_id;

static int hf_osmux_amr_ft_cmr;

static int hf_osmux_amr_ft;

static int hf_osmux_amr_cmr;

static int hf_osmux_amr_data;

/* Initialize the subtree pointers */

static int ett_osmux;

static int ett_osmux_ft_ctr;

static int ett_osmux_amr_ft_cmr;

/* Stream handling */

static wmem_map_t *osmux_stream_hash;

static uint32_t osmux_next_stream_id;

struct osmux_stream_key {

    address src;

    address dst;

    port_type ptype;

    uint32_t srcport;

    uint32_t destport;

    uint32_t cid;

};

struct osmux_stats_tree {

    int node_id;

    bool amr_received;

    uint32_t last_seq;

    uint32_t prev_seq;

    nstime_t prev_ts;

    double jitter;

};

struct osmux_stream {

    struct osmux_stream_key *key;

    struct osmux_stats_tree stats;

    uint32_t id;

};

/* Tap structure of Osmux header */

struct osmux_hdr {

    bool rtp_m;

    uint8_t ft;

    uint8_t ctr;

    bool amr_f;

    bool amr_q;

    uint8_t seq;

    uint8_t circuit_id;

    uint8_t amr_cmr;

    uint8_t amr_ft;

    bool is_old_dummy;

    struct osmux_stream *stream;

};

/* Code to calculate AMR payload size */

static uint8_t

amr_ft_to_bytes(uint8_t amr_ft)

{

    if (amr_ft >= AMR_FT_MAX) /* malformed packet ? */

        return 0;

    return amr_ft_bytes[amr_ft];

}

/*

 * Hash Functions

 */

static int

osmux_equal(const void *v, const void *w)

{

    const struct osmux_stream_key *v1 = (const struct osmux_stream_key *)v;

    const struct osmux_stream_key *v2 = (const struct osmux_stream_key *)w;

    if (v1->ptype != v2->ptype)

        return 0; /* different types of port */

    if (v1->srcport == v2->srcport &&

        v1->destport == v2->destport &&

        addresses_equal(&v1->src, &v2->src) &&

        addresses_equal(&v1->dst, &v2->dst) &&

        v1->cid == v2->cid) {

        return 1;

    }

    return 0;

}

static unsigned

osmux_hash (const void *v)

{

    const struct osmux_stream_key *key = (const struct osmux_stream_key *)v;

    unsigned hash_val;

    address tmp_addr;

    hash_val = 0;

    tmp_addr.len  = 4;

    hash_val = add_address_to_hash(hash_val, &key->src);

    tmp_addr.data = &key->srcport;

    hash_val = add_address_to_hash(hash_val, &tmp_addr);

    hash_val = add_address_to_hash(hash_val, &key->dst);

    tmp_addr.data = &key->destport;

    hash_val = add_address_to_hash(hash_val, &tmp_addr);

    tmp_addr.data = &key->cid;

    hash_val = add_address_to_hash(hash_val, &tmp_addr);

    hash_val += ( hash_val << 3 );

    hash_val ^= ( hash_val >> 11 );

    hash_val += ( hash_val << 15 );

    return hash_val;

}

static char* stream_str(struct osmux_stream *stream, packet_info* pinfo)

{

    char *ip_str, *ip2_str, *str;

    ip_str = address_to_str(NULL, &stream->key->src);

    ip2_str = address_to_str(NULL, &stream->key->dst);

    str = wmem_strdup_printf(pinfo->pool, "%u ([%s:%u->%s:%u]:%u)", stream->id,

                ip_str, stream->key->srcport, ip2_str, stream->key->destport,

                stream->key->cid);

    wmem_free(NULL, ip_str);

    wmem_free(NULL, ip2_str);

    return str;

}

static struct osmux_stream *

get_stream(packet_info *pinfo, uint32_t cid)

{

    struct osmux_stream_key key, *new_key;

    struct osmux_stream *stream;

    copy_address_shallow(&key.src, &pinfo->src);

    copy_address_shallow(&key.dst, &pinfo->dst);

    key.ptype = pinfo->ptype;

    key.srcport = pinfo->srcport;

    key.destport = pinfo->destport;

    key.cid = cid;

    stream = (struct osmux_stream *) wmem_map_lookup(osmux_stream_hash, &key);

    if (!stream) {

        new_key = wmem_new(wmem_file_scope(), struct osmux_stream_key);

        *new_key = key;

        copy_address_wmem(wmem_file_scope(), &new_key->src, &key.src);

        copy_address_wmem(wmem_file_scope(), &new_key->dst, &key.dst);

        stream = wmem_new0(wmem_file_scope(), struct osmux_stream);

        stream->key = new_key;

        stream->id = osmux_next_stream_id;

        osmux_next_stream_id++;

        wmem_map_insert(osmux_stream_hash, new_key, stream);

    }

    return stream;

}

static void finish_process_pkt(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, struct osmux_hdr *osmuxh)

{

    proto_item* ti;

    osmuxh->stream = get_stream(pinfo, osmuxh->circuit_id);

    ti = proto_tree_add_uint(tree, hf_osmux_stream_id, tvb, 0, 0, osmuxh->stream->id);

    proto_item_set_generated(ti);

    tap_queue_packet(osmux_tap, pinfo, osmuxh);

}

/* Code to actually dissect the packets */

static int

dissect_osmux(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)

{

    static int * const ft_ctr_fields[] = {

        &hf_osmux_rtp_m,

        &hf_osmux_ft,

        &hf_osmux_ctr,

        &hf_osmux_amr_f,

        &hf_osmux_amr_q,

        NULL

    };

    static int * const amr_ft_cmr_fields[] = {

        &hf_osmux_amr_ft,

        &hf_osmux_amr_cmr,

        NULL

    };

    unsigned offset = 0;

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

    col_clear(pinfo->cinfo, COL_INFO);

    while (tvb_reported_length_remaining(tvb, offset) >= 2) {

        struct osmux_hdr *osmuxh;

        proto_item *ti;

        proto_tree *osmux_tree = NULL;

        uint8_t ft_ctr;

        uint64_t amr_ft_cmr;

        uint8_t i;

        uint32_t size, temp;

        osmuxh = wmem_new0(pinfo->pool, struct osmux_hdr);

        ft_ctr = tvb_get_uint8(tvb, offset);

        osmuxh->rtp_m = ft_ctr >> 7;

        osmuxh->ft = (ft_ctr >> 5) & 0x3;

        osmuxh->ctr = (ft_ctr >> 2) & 0x7;

        osmuxh->amr_q = !!(ft_ctr & 0x02);

        osmuxh->amr_f = !!(ft_ctr & 0x01);

        col_append_sep_str(pinfo->cinfo, COL_INFO, ", ", "Osmux ");

        col_append_fstr(pinfo->cinfo, COL_INFO, "%s ",

                        val_to_str(pinfo->pool, osmuxh->ft, osmux_ft_vals,

                                   "unknown 0x%02x"));

        if (osmuxh->rtp_m)

            col_append_str(pinfo->cinfo, COL_INFO, "(M) ");

        ti = proto_tree_add_protocol_format(tree, proto_osmux, tvb, offset, -1,

                "Osmux type %s frame",

                val_to_str(pinfo->pool, osmuxh->ft, osmux_ft_vals, "unknown 0x%02x"));

        osmux_tree = proto_item_add_subtree(ti, ett_osmux);

        proto_tree_add_bitmask(osmux_tree, tvb, offset, hf_osmux_ft_ctr,

               ett_osmux_ft_ctr, ft_ctr_fields, ENC_BIG_ENDIAN);

         offset++;

        /* Old versions of the protocol used to send dummy packets of only 2 bytes (control + cid):_*/

        if (ft_ctr == 0x23 && tvb_reported_length_remaining(tvb, offset - 1) == 2) {

            osmuxh->is_old_dummy = true;

            proto_tree_add_item_ret_uint(osmux_tree, hf_osmux_circuit_id, tvb, offset, 1, ENC_BIG_ENDIAN, &temp);

            osmuxh->circuit_id = (uint8_t)temp;

            col_append_fstr(pinfo->cinfo, COL_INFO, "Old Dummy (CID %u)", osmuxh->circuit_id);

            finish_process_pkt(tvb,  pinfo, tree, osmuxh);

            return tvb_reported_length(tvb);

        }

        proto_tree_add_item_ret_uint(osmux_tree, hf_osmux_seq, tvb, offset, 1, ENC_BIG_ENDIAN, &temp);

        osmuxh->seq = (uint8_t)temp;

        offset++;

        proto_tree_add_item_ret_uint(osmux_tree, hf_osmux_circuit_id, tvb, offset, 1, ENC_BIG_ENDIAN, &temp);

        osmuxh->circuit_id = (uint8_t)temp;

        offset++;

        col_append_fstr(pinfo->cinfo, COL_INFO, "(CID %u) ", osmuxh->circuit_id);

        proto_tree_add_bitmask_ret_uint64(osmux_tree, tvb, offset, hf_osmux_amr_ft_cmr,

                ett_osmux_amr_ft_cmr, amr_ft_cmr_fields, ENC_BIG_ENDIAN, &amr_ft_cmr);

        offset++;

        osmuxh->amr_ft = (uint32_t)(amr_ft_cmr & 0xf0) >> 4;

        osmuxh->amr_cmr = (uint32_t)amr_ft_cmr & 0x0f;

        size = amr_ft_to_bytes(osmuxh->amr_ft);

        for (i = 0; i < osmuxh->ctr + 1; i++) {

            proto_tree_add_item(osmux_tree, hf_osmux_amr_data, tvb, offset, size, ENC_NA);

            offset += size;

        }

        finish_process_pkt(tvb,  pinfo, tree, osmuxh);

    }

    return tvb_reported_length(tvb);

}

/* Statistics */

static const char *st_str_total_pkts = "Osmux Total Packets";

static const char *st_str_conn = "Osmux Streams";

static const char *st_str_pkts = "Count: Osmux Packets";

static const char *st_str_amr = "Count: AMR frames";

static const char *st_str_rtp_m = "Field: RTP Marker (M)";

static const char *st_str_seq_rep = "SeqNum Analysis: Consecutive Repeated";

static const char *st_str_seq_lost = "SeqNum Analysis: Lost";

static const char *st_str_seq_ord = "SeqNum Analysis: In Order";

static const char *st_str_seq_ooo = "SeqNum Analysis: Out Of Order";

static const char *st_str_jit_rtt = "Jitter Analysis: Relative Transmit Time [ms]";

static const char *st_str_jit_rtt_abs = "Jitter Analysis: Relative Transmit Time (abs) [ms]";

static const char *st_str_jit_jit = "Jitter Analysis: Jitter [ms]";

static int st_osmux_stats = -1;

static int st_osmux_stats_conn = -1;

static void stream_hash_clean_stats(void *key _U_, void *value, void *user_data _U_) {

    struct osmux_stream *stream = (struct osmux_stream *)value;

    memset(&stream->stats, 0, sizeof(struct osmux_stats_tree));

}

static void osmux_stats_tree_init(stats_tree *st)

{

    wmem_map_foreach(osmux_stream_hash, stream_hash_clean_stats, NULL);

    st_osmux_stats = stats_tree_create_node(st, st_str_total_pkts, 0, STAT_DT_INT, true);

    st_osmux_stats_conn = stats_tree_create_node(st, st_str_conn, st_osmux_stats, STAT_DT_INT, true);

}

static tap_packet_status osmux_stats_tree_packet(stats_tree *st,

        packet_info *pinfo, epan_dissect_t *edt _U_, const void *p _U_, tap_flags_t flags _U_)

{

    char* stream_name;

    char* ft_name;

    const struct osmux_hdr *osmuxh = (const struct osmux_hdr*) p;

    struct osmux_stream *stream = osmuxh->stream;

    stream_name = stream_str(stream, pinfo);

    tick_stat_node(st, st_str_total_pkts, 0, true);

    if (!stream->stats.node_id) {

        tick_stat_node(st, st_str_conn, st_osmux_stats, true);

        stream->stats.node_id = stats_tree_create_node(st, stream_name, st_osmux_stats_conn, STAT_DT_INT, true);

    }

    tick_stat_node(st, stream_name, st_osmux_stats_conn, true);

    tick_stat_node(st, st_str_pkts, stream->stats.node_id, true);

    ft_name = wmem_strdup_printf(pinfo->pool, "Field: FT: %s", osmuxh->is_old_dummy ? "Old Dummy" : osmux_ft_vals[osmuxh->ft].strptr);

    tick_stat_node(st, ft_name, stream->stats.node_id, true);

    if (osmuxh->ft == OSMUX_FT_AMR && !osmuxh->is_old_dummy) {

        increase_stat_node(st, st_str_amr, stream->stats.node_id, true, osmuxh->ctr+1);

        avg_stat_node_add_value_notick(st, st_str_amr, stream->stats.node_id, true, osmuxh->ctr+1);

        increase_stat_node(st, st_str_rtp_m, stream->stats.node_id, true, osmuxh->rtp_m);

        avg_stat_node_add_value_notick(st, st_str_rtp_m, stream->stats.node_id, true, osmuxh->rtp_m);

        /* Calculate relative transmit time */

        if ((stream->stats.prev_ts.secs == 0 && stream->stats.prev_ts.nsecs == 0) || osmuxh->rtp_m) {

            avg_stat_node_add_value_int(st, st_str_jit_rtt, stream->stats.node_id, true, 0);

            avg_stat_node_add_value_int(st, st_str_jit_rtt_abs, stream->stats.node_id, true, 0);

            avg_stat_node_add_value_int(st, st_str_jit_jit, stream->stats.node_id, true, 0);

            stream->stats.jitter = 0;

        } else {

            nstime_t diff_rx;

            int32_t diff_rx_ms, diff_tx_ms, Dij;

            uint32_t abs_Dij;

            nstime_delta(&diff_rx, &pinfo->abs_ts, &stream->stats.prev_ts);

            diff_rx_ms = (uint32_t) nstime_to_msec(&diff_rx);

            diff_tx_ms = (osmuxh->seq - stream->stats.prev_seq)*(osmuxh->ctr+1)*20; /* SAMPLE RATE is 20msec/AMRframe */

            Dij = diff_rx_ms - diff_tx_ms;

            abs_Dij = Dij * ( Dij >= 0 ? 1 : -1 );

            stream->stats.jitter = stream->stats.jitter + ((double) abs_Dij - stream->stats.jitter)/16.0;

            avg_stat_node_add_value_int(st, st_str_jit_rtt, stream->stats.node_id, true, Dij);

            avg_stat_node_add_value_int(st, st_str_jit_rtt_abs, stream->stats.node_id, true, abs_Dij);

            avg_stat_node_add_value_int(st, st_str_jit_jit, stream->stats.node_id, true, (int) stream->stats.jitter);

        }

        stream->stats.prev_ts = pinfo->abs_ts;

        stream->stats.prev_seq = osmuxh->seq;

        /* Check sequence numbers */

        if (!stream->stats.amr_received || (stream->stats.last_seq + 1) % 256 == osmuxh->seq ) {

            /* normal case */

            tick_stat_node(st, st_str_seq_ord, stream->stats.node_id, true);

            stream->stats.last_seq = osmuxh->seq;

            stream->stats.amr_received = true;

        } else if (stream->stats.last_seq == osmuxh->seq) {

            /* Last packet is repeated */

            tick_stat_node(st, st_str_seq_rep, stream->stats.node_id, true);

        } else if ((stream->stats.last_seq + 1) % 256 < osmuxh->seq) {

            /* Normal packet loss */

            increase_stat_node(st, st_str_seq_lost, stream->stats.node_id, true, osmuxh->seq - stream->stats.last_seq - 1);

            stream->stats.last_seq = osmuxh->seq;

        } else if (stream->stats.last_seq - osmuxh->seq > 0x008F) {

            /* If last_Seq is a lot higher, a wraparound occurred with packet loss */

            increase_stat_node(st, st_str_seq_lost, stream->stats.node_id, true, 255 - stream->stats.last_seq + osmuxh->seq);

            stream->stats.last_seq = osmuxh->seq;

        } else if (stream->stats.last_seq > osmuxh->seq || osmuxh->seq - stream->stats.last_seq > 0x008F) {

            /* Out of order packet */

            tick_stat_node(st, st_str_seq_ooo, stream->stats.node_id, true);

            increase_stat_node(st, st_str_seq_lost, stream->stats.node_id, true, -1);

        }

    }

    return TAP_PACKET_REDRAW;

}

/* Set up an Osmux conversation. Called from MGCP/SDP dissector to set

 * appropriate dissector for the set up MGW endpoint. */

void

osmux_add_address(packet_info *pinfo, address *addr, int port, int other_port, uint32_t setup_frame_number)

{

    address null_addr;

    conversation_t* p_conv;

    /*

     * If this isn't the first time this packet has been processed,

     * we've already done this work, so we don't need to do it

     * again.

     */

    if (pinfo->fd->visited)

        return;

    clear_address(&null_addr);

    /*

     * Check if the ip address and port combination is not

     * already registered as a conversation.

     */

    p_conv = find_conversation(setup_frame_number, addr, &null_addr, CONVERSATION_UDP, port, other_port,

                               NO_ADDR_B | (!other_port ? NO_PORT_B : 0));

    /*

     * If not, create a new conversation.

     */

    if (!p_conv || p_conv->setup_frame != setup_frame_number) {

        /* XXX - If setup_frame_number < pinfo->num, creating this conversation

         * can mean that the dissection is different on later passes.

         */

        p_conv = conversation_new(setup_frame_number, addr, &null_addr, CONVERSATION_UDP,

                                  (uint32_t)port, (uint32_t)other_port,

                                  NO_ADDR2 | (!other_port ? NO_PORT2 : 0));

    }

    conversation_set_dissector(p_conv, osmux_handle);

}

void proto_register_osmux(void)

{

    static hf_register_info hf[] = {

        {&hf_osmux_stream_id,

         {"OSmux Stream ID", "osmux.stream_id",

          FT_UINT32, BASE_DEC, NULL, 0x00,

          "ID for a specific OSMUX flow", HFILL}

        },

        {&hf_osmux_ft_ctr,

         {"FTCTRByte", "osmux.ft_ctr",

          FT_UINT8, BASE_DEC, NULL, 0x00,

          "Byte with Fieldtype, Counter", HFILL}

        },

        {&hf_osmux_rtp_m,

         {"RTP Marker", "osmux.rtp_m",

          FT_BOOLEAN, 8, NULL, 0x80,

          "Type of data in packet", HFILL}

         },

        {&hf_osmux_ft,

         {"FieldType", "osmux.ft",

          FT_UINT8, BASE_DEC, VALS(osmux_ft_vals), 0x60,

          "Type of data in packet", HFILL}

         },

        {&hf_osmux_ctr,

         {"CTR", "osmux.ctr",

          FT_UINT8, BASE_HEX, NULL, 0x1c,

          "Number of AMR packets inside", HFILL}

         },

        {&hf_osmux_amr_q,

         {"AMR f", "osmux.amr_f",

          FT_BOOLEAN, 8, NULL, 0x02,

          "AMR f parameter", HFILL}

         },

        {&hf_osmux_amr_f,

         {"AMR q", "osmux.amr_q",

          FT_BOOLEAN, 8, NULL, 0x01,

          "AMR q parameter", HFILL}

         },

        {&hf_osmux_seq,

         {"Seq", "osmux.seq",

          FT_UINT8, BASE_HEX, NULL, 0x0,

          "Sequence number", HFILL}

         },

        {&hf_osmux_circuit_id,

         {"Circuit ID", "osmux.circuit_id",

          FT_UINT8, BASE_HEX, NULL, 0x0,

          NULL, HFILL}

         },

        {&hf_osmux_amr_ft_cmr,

         {"AMR info", "osmux.amr_ft_cmr",

          FT_UINT8, BASE_DEC, NULL, 0x00,

          "Byte with AMR params ft and cmr", HFILL}

        },

        {&hf_osmux_amr_ft,

         {"AMR ft", "osmux.amr_ft",

          FT_UINT8, BASE_HEX,VALS(amr_ft_names), 0xf0,

          "AMR parameter ft", HFILL}

         },

        {&hf_osmux_amr_cmr,

         {"AMR cmr", "osmux.amr_cmr",

          FT_UINT8, BASE_HEX, NULL, 0x0f,

          "AMR parameter cmr", HFILL}

         },

        {&hf_osmux_amr_data,

         {"AMR data", "osmux.amr_data",

          FT_BYTES, BASE_NONE, NULL, 0x00,

          "AMR voice data", HFILL}

         },

    };

    static int *ett[] = {

        &ett_osmux,

        &ett_osmux_ft_ctr,

        &ett_osmux_amr_ft_cmr,

    };

    proto_osmux = proto_register_protocol("GSM multiplexing for AMR", "GSM Osmux", "osmux");

    proto_register_field_array(proto_osmux, hf, array_length(hf));

    proto_register_subtree_array(ett, array_length(ett));

    osmux_stream_hash = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(),

                                             osmux_hash, osmux_equal);

    osmux_handle = register_dissector("osmux", dissect_osmux, proto_osmux);

    osmux_tap = register_tap("osmux");

}

void proto_reg_handoff_osmux(void)

{

    dissector_add_for_decode_as_with_preference("udp.port", osmux_handle);

    stats_tree_register("osmux", "osmux", "Osmux" STATS_TREE_MENU_SEPARATOR "osmux", 0,

            osmux_stats_tree_packet, osmux_stats_tree_init, NULL);

}

/*

 * 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:

 */