/* packet-alcap.c
 * Routines for ALCAP (Q.2630.3) dissection
 * AAL type 2 signalling protocol - Capability set 3
 * 10/2003
 *
 * Copyright 2003, Michael Lum <mlum [AT] telostech.com>
 * In association with Telos Technology Inc.
 *
 * Copyright 2005, Luis E. Garcia Ontanon <luis.ontanon [AT] gmail.com>
 *
 * 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/prefs.h>
#include <epan/expert.h>
#include <wsutil/str_util.h>
#include "packet-alcap.h"
#include "packet-mtp3.h"
#include "packet-isup.h"

void proto_register_alcap(void);
void proto_reg_handoff_alcap(void);

#define ALCAP_MSG_HEADER_LEN     6
#define ALCAP_PARM_HEADER_LEN    3
#define FIELD_NSAP_ADDRESS_LEN  20

static const value_string msg_type_strings[] = {
    {  1,   "Block confirm (BLC)" },
    {  2,   "Block request (BLO)" },
    {  3,   "Confusion (CFN)" },
    {  4,   "Establish confirm (ECF)" },
    {  5,   "Establish request (ERQ)" },
    {  6,   "Release confirm (RLC)" },
    {  7,   "Release request (REL)" },
    {  8,   "Reset confirm (RSC)" },
    {  9,   "Reset request (RES)" },
    { 10,   "Unblock confirm (UBC)" },
    { 11,   "Unblock request (UBL)" },
    { 12,   "Modify Ack (MOA)" },
    { 13,   "Modify Reject (MOR)" },
    { 14,   "Modify Request (MOD)" },
    { 0, NULL }
};
static value_string_ext msg_type_strings_ext = VALUE_STRING_EXT_INIT(msg_type_strings);

static const value_string send_notification[] = {
    { 0, "Do Not Send Notification"},
    { 1, "Send Notification" },
    { 0, NULL }
};

static const value_string instruction_indicator[] = {
    { 0, "Pass On Message or Parameter"},
    { 1, "Discard Parameter" },
    { 2, "Discard Message" },
    { 3, "Release Connection" },
    { 0, NULL }
};

static const value_string msg_parm_strings[] = {
    {  1,  "Cause (CAU)" },
    {  2,  "Connection element identifier (CEID)" },
    {  3,  "Destination E.164 service endpoint address (DESEA)" },
    {  4,  "Destination NSAP service endpoint address (DNSEA)" },
    {  5,  "Link characteristics (ALC)" },
    {  6,  "Originating signalling association identifier (OSAID)" },
    {  7,  "Served user generated reference (SUGR)" },
    {  8,  "Served user transport (SUT)" },
    {  9,  "Service specific information (audio) (SSIA)" },
    { 10,  "Service specific information (multirate) (SSIM)" },
    { 11,  "Service specific information (SAR-assured) (SSISA)" },
    { 12,  "Service specific information (SAR-unassured) (SSISU)" },
    { 13,  "Test connection identifier (TCI)" },
    { 14,  "Modify Support for Link Characteristics (MSLC)" },
    { 15,  "Modify Support for Service Specific Information (MSSSI)" },
    { 16,  "Path Type (PT)" },
    { 17,  "Preferred Link Characteristics (PLC)" },
    { 18,  "Preferred Service Specific Information - Audio Extended (PSSIAE)" },
    { 19,  "Preferred Service Specific Information - Multirate Extended (PSSIME)" },
    { 20,  "Served User Correlation ID (SUCI)" },
    { 21,  "Origination NSAP Service Endpoint Address (ONSEA)" },
    { 22,  "Service Specific Information - Audio Extended (SSIAE)" },
    { 23,  "Service Specific Information - Multirate Extended (SSIME)" },
    { 24,  "Automatic Congestion Control (ACC)" },
    { 25,  "Connection Priority (CP)" },
    { 26,  "Hop Counter (HC)" },
    { 27,  "Origination E.164 Service Endpoint Address (OESEA)" },
    { 28,  "Preferred Transfer Capability - FBW (PFBW)" },
    { 29,  "Preferred Transfer Capability - VBWS (PVBWS)" },
    { 30,  "Preferred Transfer Capability - VBWT (PVBWT)" },
    { 31,  "TAR Controlled Connection (TCC)" },
    { 32,  "Transfer Capability (FBW)" },
    { 33,  "Transfer Capability (VBWS)" },
    { 34,  "Transfer Capability (VBWT)" },
    { 35,  "Transfer Capability Support (TCS)" },
    { 0, NULL },
};


static const value_string enabled_disabled[] = {
    {0, "disabled" },
    {1, "enabled" },
    {0,NULL}
};

static const value_string alaw_ulaw[] = {
    {0, "A-Law" },
    {1, "u-Law" },
    {0,NULL}
};

static const value_string cause_coding_vals[] = {
    {0, "ITU (Q.850 - Q.2610)"},
    {1, "ISO/IEC"},
    {2, "National"},
    {3, "Private"},
    {0,NULL}
};


static const value_string cause_values_itu[] = {
    { 1, "Unallocated (unassigned) number"},
    { 3, "No route to destination"},
    { 31, "Normal, unspecified"},
    { 34, "No circuit/channel available"},
    { 38, "Network out of order"},
    { 41, "Temporary failure"},
    { 42, "Switching equipment congestion"},
    { 44, "Requested circuit/channel not available"},
    { 47, "Resource unavailable, unspecified"},
    { 93, "AAL parameters cannot be supported"},
    { 95, "Invalid message, unspecified"},
    { 96, "Mandatory information element is missing"},
    { 97, "Message type non-existent or not implemented"},
    { 99, "Information element/parameter non-existent or not implemented"},
    { 100, "Invalid information element contents"},
    { 102, "Recovery on timer expiry"},
    { 110, "Message with unrecognized parameter, discarded"},
    { 111, "Protocol error, unspecified"},
    { 0, NULL }
};

static const value_string audio_profile_type[] = {
    { 0, "From I.366.2" },
    { 1, "From Organization" },
    { 2, "Custom" },
    { 3, "Reserved" },
    { 0, NULL }
};

static const value_string congestion_level[] = {
    { 0, "Spare" },
    { 1, "Congestion Level 1 exceeded" },
    { 2, "Congestion Level 2 exceeded" },
    { 0, NULL }
};

static const value_string connection_priority[] = {
    { 0, "Level 1 (Highest)" },
    { 1, "Level 2" },
    { 2, "Level 3" },
    { 3, "Level 4" },
    { 4, "Level 5 (Lowest)" },
    { 5, "Reserved" },
    { 6, "Reserved" },
    { 7, "Reserved" },
    { 0, NULL }
};

static const char *alcap_proto_name = "AAL type 2 signalling protocol (Q.2630)";
static const char *alcap_proto_name_short = "ALCAP";

static const value_string all_paths_vals[] = {
    { 0, "All Paths in association" },
    { 0, NULL }
};

static const value_string all_cids_vals[] = {
    { 0, "All CIDs in the Path" },
    { 0, NULL }
};

/* Initialize the subtree pointers */
static gint ett_alcap = -1;
static gint ett_leg = -1;
static gint ett_compat = -1;
static gint ett_cau_diag = -1;

/* Initialize the protocol and registered fields */
static int proto_alcap = -1;

static int hf_alcap_dsaid = -1;
static int hf_alcap_msg_id = -1;
static int hf_alcap_compat = -1;
static int hf_alcap_compat_pass_on_sni = -1;
static int hf_alcap_compat_pass_on_ii = -1;
static int hf_alcap_compat_general_sni = -1;
static int hf_alcap_compat_general_ii = -1;

static int hf_alcap_param_id = -1;
static int hf_alcap_param_len = -1;

static int hf_alcap_unknown = -1;

static int hf_alcap_cau_coding = -1;
static int hf_alcap_cau_value_itu = -1;
static int hf_alcap_cau_value_non_itu = -1;
static int hf_alcap_cau_diag = -1;
static int hf_alcap_cau_diag_len = -1;
static int hf_alcap_cau_diag_msg = -1;
static int hf_alcap_cau_diag_param_id = -1;
static int hf_alcap_cau_diag_field_num = -1;

static int hf_alcap_ceid_pathid = -1;
static int hf_alcap_ceid_cid = -1;

static int hf_alcap_dnsea = -1;

static int hf_alcap_alc_max_br_fw = -1;
static int hf_alcap_alc_max_br_bw = -1;
static int hf_alcap_alc_avg_br_fw = -1;
static int hf_alcap_alc_avg_br_bw = -1;
static int hf_alcap_alc_max_sdu_fw = -1;
static int hf_alcap_alc_max_sdu_bw = -1;
static int hf_alcap_alc_avg_sdu_fw = -1;
static int hf_alcap_alc_avg_sdu_bw = -1;

static int hf_alcap_osaid = -1;

static int hf_alcap_sugr = -1;

static int hf_alcap_sut_len = -1;
static int hf_alcap_sut = -1;

static int hf_alcap_ssia_pr_type = -1;
static int hf_alcap_ssia_pr_id = -1;
static int hf_alcap_ssia_frm = -1;
static int hf_alcap_ssia_cmd = -1;
static int hf_alcap_ssia_mfr2 = -1;
static int hf_alcap_ssia_mfr1 = -1;
static int hf_alcap_ssia_dtmf = -1;
static int hf_alcap_ssia_cas = -1;
static int hf_alcap_ssia_fax = -1;
static int hf_alcap_ssia_pcm = -1;
static int hf_alcap_ssia_max_len = -1;
static int hf_alcap_ssia_oui = -1;

static int hf_alcap_ssim_frm = -1;
static int hf_alcap_ssim_mult = -1;
static int hf_alcap_ssim_max = -1;

static int hf_alcap_ssisa_max_sssar_fw = -1;
static int hf_alcap_ssisa_max_sssar_bw = -1;
static int hf_alcap_ssisa_max_sscop_sdu_fw = -1;
static int hf_alcap_ssisa_max_sscop_sdu_bw = -1;
static int hf_alcap_ssisa_max_sscop_uu_fw = -1;
static int hf_alcap_ssisa_max_sscop_uu_bw = -1;

static int hf_alcap_ssisu_max_sssar_fw = -1;
static int hf_alcap_ssisu_max_sssar_bw = -1;
static int hf_alcap_ssisu_ted = -1;

static int hf_alcap_pt = -1;

static int hf_alcap_plc_max_br_fw = -1;
static int hf_alcap_plc_max_br_bw = -1;
static int hf_alcap_plc_avg_br_fw = -1;
static int hf_alcap_plc_avg_br_bw = -1;
static int hf_alcap_plc_max_sdu_fw = -1;
static int hf_alcap_plc_max_sdu_bw = -1;
static int hf_alcap_plc_avg_sdu_fw = -1;
static int hf_alcap_plc_avg_sdu_bw = -1;

static int hf_alcap_pssiae_pr_type = -1;
static int hf_alcap_pssiae_pr_id = -1;
static int hf_alcap_pssiae_lb = -1;
static int hf_alcap_pssiae_rc = -1;
static int hf_alcap_pssiae_syn = -1;
static int hf_alcap_pssiae_frm = -1;
static int hf_alcap_pssiae_cmd = -1;
static int hf_alcap_pssiae_mfr2 = -1;
static int hf_alcap_pssiae_mfr1 = -1;
static int hf_alcap_pssiae_dtmf = -1;
static int hf_alcap_pssiae_cas = -1;
static int hf_alcap_pssiae_fax = -1;
static int hf_alcap_pssiae_pcm = -1;
static int hf_alcap_pssiae_max_len = -1;
static int hf_alcap_pssiae_oui = -1;

static int hf_alcap_pssime_frm = -1;
static int hf_alcap_pssime_lb = -1;
static int hf_alcap_pssime_mult = -1;
static int hf_alcap_pssime_max = -1;

static int hf_alcap_suci = -1;

static int hf_alcap_onsea = -1;

static int hf_alcap_ssiae_pr_type = -1;
static int hf_alcap_ssiae_pr_id = -1;
static int hf_alcap_ssiae_lb = -1;
static int hf_alcap_ssiae_rc = -1;
static int hf_alcap_ssiae_syn = -1;
static int hf_alcap_ssiae_frm = -1;
static int hf_alcap_ssiae_cmd = -1;
static int hf_alcap_ssiae_mfr2 = -1;
static int hf_alcap_ssiae_mfr1 = -1;
static int hf_alcap_ssiae_dtmf = -1;
static int hf_alcap_ssiae_cas = -1;
static int hf_alcap_ssiae_fax = -1;
static int hf_alcap_ssiae_pcm = -1;
static int hf_alcap_ssiae_max_len = -1;
static int hf_alcap_ssiae_oui = -1;

static int hf_alcap_ssime_frm = -1;
static int hf_alcap_ssime_lb = -1;
static int hf_alcap_ssime_mult = -1;
static int hf_alcap_ssime_max = -1;

static int hf_alcap_acc_level = -1;

static int hf_alcap_cp = -1;

static int hf_alcap_hc = -1;

static int hf_alcap_pfbw_br_fw = -1;
static int hf_alcap_pfbw_br_bw = -1;
static int hf_alcap_pfbw_bucket_fw = -1;
static int hf_alcap_pfbw_bucket_bw = -1;
static int hf_alcap_pfbw_size_fw = -1;
static int hf_alcap_pfbw_size_bw = -1;

static int hf_alcap_pvbws_br_fw = -1;
static int hf_alcap_pvbws_br_bw = -1;
static int hf_alcap_pvbws_bucket_fw = -1;
static int hf_alcap_pvbws_bucket_bw = -1;
static int hf_alcap_pvbws_size_fw = -1;
static int hf_alcap_pvbws_size_bw = -1;
static int hf_alcap_pvbws_stt = -1;

static int hf_alcap_pvbwt_peak_br_fw = -1;
static int hf_alcap_pvbwt_peak_br_bw = -1;
static int hf_alcap_pvbwt_peak_bucket_fw = -1;
static int hf_alcap_pvbwt_peak_bucket_bw = -1;
static int hf_alcap_pvbwt_sust_br_fw = -1;
static int hf_alcap_pvbwt_sust_br_bw = -1;
static int hf_alcap_pvbwt_sust_bucket_fw = -1;
static int hf_alcap_pvbwt_sust_bucket_bw = -1;
static int hf_alcap_pvbwt_size_fw = -1;
static int hf_alcap_pvbwt_size_bw = -1;

static int hf_alcap_fbw_br_fw = -1;
static int hf_alcap_fbw_br_bw = -1;
static int hf_alcap_fbw_bucket_fw = -1;
static int hf_alcap_fbw_bucket_bw = -1;
static int hf_alcap_fbw_size_fw = -1;
static int hf_alcap_fbw_size_bw = -1;

static int hf_alcap_vbws_br_fw = -1;
static int hf_alcap_vbws_br_bw = -1;
static int hf_alcap_vbws_bucket_fw = -1;
static int hf_alcap_vbws_bucket_bw = -1;
static int hf_alcap_vbws_size_fw = -1;
static int hf_alcap_vbws_size_bw = -1;
static int hf_alcap_vbws_stt = -1;

static int hf_alcap_vbwt_peak_br_fw = -1;
static int hf_alcap_vbwt_peak_br_bw = -1;
static int hf_alcap_vbwt_peak_bucket_fw = -1;
static int hf_alcap_vbwt_peak_bucket_bw = -1;
static int hf_alcap_vbwt_sust_br_fw = -1;
static int hf_alcap_vbwt_sust_br_bw = -1;
static int hf_alcap_vbwt_sust_bucket_fw = -1;
static int hf_alcap_vbwt_sust_bucket_bw = -1;
static int hf_alcap_vbwt_size_fw = -1;
static int hf_alcap_vbwt_size_bw = -1;


static int hf_alcap_leg_osaid = -1;
static int hf_alcap_leg_dsaid = -1;
static int hf_alcap_leg_pathid = -1;
static int hf_alcap_leg_cid = -1;
static int hf_alcap_leg_sugr = -1;
static int hf_alcap_leg_dnsea = -1;
static int hf_alcap_leg_onsea = -1;
static int hf_alcap_leg_frame = -1;
static int hf_alcap_leg_release_cause = -1;

static expert_field ei_alcap_parameter_field_bad_length = EI_INIT;
static expert_field ei_alcap_undecoded = EI_INIT;
static expert_field ei_alcap_release_cause_not31 = EI_INIT;
static expert_field ei_alcap_abnormal_release = EI_INIT;
static expert_field ei_alcap_response = EI_INIT;

static dissector_handle_t alcap_handle = NULL;

static gboolean keep_persistent_info = TRUE;

static wmem_tree_t* legs_by_dsaid = NULL;
static wmem_tree_t* legs_by_osaid = NULL;
static wmem_tree_t* legs_by_bearer = NULL;

static const gchar* dissect_fields_unknown(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    proto_item* pi = proto_tree_add_item(tree,hf_alcap_unknown,tvb,offset,len,ENC_NA);
    expert_add_info(pinfo, pi, &ei_alcap_undecoded);
    return NULL;
}

static const gchar* dissect_fields_cau(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info) {
    /*
     * Q.2630.1 -> 7.3.1 Cause
     *
     * 7.4.16 Cause Value
     * 7.4.17 Diagnostics
     */

    guint coding;
    const gchar* ret_str;
    proto_item* pi;

    if (len < 2) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    msg_info->release_cause = tvb_get_guint8(tvb, offset+1) & 0x7f;

    coding = tvb_get_guint8(tvb, offset) & 0x3;

    proto_tree_add_item(tree, hf_alcap_cau_coding, tvb, offset, 1, ENC_BIG_ENDIAN);

    if (coding == 0) {
        pi = proto_tree_add_item(tree, hf_alcap_cau_value_itu, tvb, offset+1, 1, ENC_BIG_ENDIAN);

        if ( msg_info->release_cause && msg_info->release_cause != 31 )
            expert_add_info(pinfo, pi, &ei_alcap_abnormal_release);

        ret_str = val_to_str(msg_info->release_cause, cause_values_itu, "Unknown(%u)");
    } else {
        proto_tree_add_item(tree, hf_alcap_cau_value_non_itu, tvb, offset+1 , 1, ENC_BIG_ENDIAN);
        ret_str = wmem_strdup_printf(wmem_packet_scope(), "%u", msg_info->release_cause);
    }

    if (!tree) return ret_str;

    offset += 2;

    if (len > 2)  {
        int diag_len = tvb_get_guint8(tvb,offset);

        pi = proto_tree_add_item(tree,hf_alcap_cau_diag, tvb, offset,len-2,ENC_NA);
        tree = proto_item_add_subtree(pi,ett_cau_diag);

        proto_tree_add_item(tree, hf_alcap_cau_diag_len, tvb, offset, 1, ENC_BIG_ENDIAN);

        if (diag_len) {
            switch (msg_info->release_cause) {
                case 97:
                case 99:
                case 110:
                    proto_tree_add_item(tree, hf_alcap_cau_diag_msg, tvb, ++offset, 1, ENC_BIG_ENDIAN);

                    while(diag_len >= 2) {
                        proto_tree_add_item(tree, hf_alcap_cau_diag_param_id, tvb, ++offset, 1, ENC_BIG_ENDIAN);
                        proto_tree_add_item(tree, hf_alcap_cau_diag_field_num, tvb, ++offset, 1, ENC_BIG_ENDIAN);
                        diag_len -= 2;
                    }
                    break;
                default:
                    /* XXX - TODO Q.2610 */
                    proto_tree_add_expert(tree, pinfo, &ei_alcap_undecoded, tvb, offset, diag_len);
                    break;
            }
        }
    }
    return ret_str;
}

static const gchar* dissect_fields_ceid(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info) {
    /*
     * Q.2630.1 -> 7.3.2 Connection Element Identifier
     *
     * 7.4.3 Path Identifier
     * 7.4.4 Channel Identifier
     */
    if (len != 5) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item_ret_uint(tree, hf_alcap_ceid_pathid, tvb, offset, 4, ENC_BIG_ENDIAN, &msg_info->pathid);

    msg_info->cid = tvb_get_guint8(tvb,offset+4);

    if (msg_info->pathid == 0) {
        return "Path: 0 (All Paths)";
    }

    proto_tree_add_item(tree,hf_alcap_ceid_cid,tvb,offset+4,1,ENC_BIG_ENDIAN);

    if (msg_info->cid == 0) {
        return wmem_strdup_printf(wmem_packet_scope(), "Path: %u CID: 0 (Every CID)",msg_info->pathid);
    } else {
        return wmem_strdup_printf(wmem_packet_scope(), "Path: %u CID: %u",msg_info->pathid,msg_info->cid);
    }
}

static const gchar* dissect_fields_desea(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.1 -> 7.3.3 Destination E.164 service endpoint address
     *
     * 7.4.13 Nature of Address
     * 7.4.14 E.164 Address
     */
    e164_info_t* e164;

    if (len < 2) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    e164 = wmem_new(wmem_packet_scope(), e164_info_t);

    e164->e164_number_type = CALLED_PARTY_NUMBER;
    e164->nature_of_address = tvb_get_guint8(tvb,offset) & 0x7f;
    /*
     * XXX - section 7.4.14 "E.164 address" of Q.2630.3 seems to
     * indicate that this is BCD, not ASCII.
     */
    e164->E164_number_str = (gchar*)tvb_get_string_enc(wmem_packet_scope(),tvb,offset+1,len,ENC_ASCII|ENC_NA);
    e164->E164_number_length = len-1;

    dissect_e164_number(tvb, tree, offset-1, len, *e164);

    return NULL;
}

static const gchar* dissect_fields_oesea(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.3 -> 7.3.23 Origination E.164 service endpoint address
     *
     * 7.4.13 Nature of Address
     * 7.4.14 E.164 Address
     */
    e164_info_t* e164;

    if (len < 2) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    e164 = wmem_new(wmem_packet_scope(), e164_info_t);

    e164->e164_number_type = CALLING_PARTY_NUMBER;
    e164->nature_of_address = tvb_get_guint8(tvb,offset) & 0x7f;
    /*
     * XXX - section 7.4.14 "E.164 address" of Q.2630.3 seems to
     * indicate that this is BCD, not ASCII.
     */
    e164->E164_number_str = (gchar*)tvb_get_string_enc(wmem_packet_scope(),tvb,offset+1,len,ENC_ASCII|ENC_NA);
    e164->E164_number_length = len-1;

    dissect_e164_number(tvb, tree, offset-1, len, *e164);

    return NULL;
}

static const gchar* dissect_fields_dnsea(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info) {
    /*
     * Q.2630.1 -> 7.3.4 Destination NSAP service endpoint address
     *
     * 7.4.15 NSAP Address
     */

    if (len < 1) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    msg_info->dest_nsap = tvb_bytes_to_str(wmem_packet_scope(), tvb,offset,20);

    proto_tree_add_item(tree, hf_alcap_dnsea, tvb, offset, 20, ENC_NA);
    dissect_nsap(tvb, offset,20, tree);

    return NULL;
}

static const gchar* dissect_fields_onsea(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info) {
    /*
     * Q.2630.3 -> 7.3.24 Origination NSAP service endpoint address
     *
     * 7.4.15 NSAP Address
     */

    if (len < 1) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    msg_info->orig_nsap = tvb_bytes_to_str(wmem_packet_scope(), tvb,offset,20);

    proto_tree_add_item(tree, hf_alcap_onsea, tvb, offset, 20, ENC_NA);
    dissect_nsap(tvb, offset,20, tree);

    return NULL;
}

static const gchar* dissect_fields_alc(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.1 -> 7.3.5 Link characteristics
     *
     * 7.4.11 CPS-SDU Bit Rate -> Maximum CPS-SDU Bit Rate
     * 7.4.11 CPS-SDU Bit Rate -> Average CPS-SDU Bit Rate
     * 7.4.12 CPS-SDU Size -> Maximum CPS-SDU Size
     * 7.4.12 CPS-SDU Size -> Average CPS-SDU Size
     */

    if (len != 12) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree, hf_alcap_alc_max_br_fw, tvb, offset+0, 2, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_alc_max_br_bw, tvb, offset+2, 2, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_alc_avg_br_fw, tvb, offset+4, 2, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_alc_avg_br_bw, tvb, offset+6, 2, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_alc_max_sdu_fw, tvb, offset+8, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_alc_max_sdu_bw, tvb, offset+9, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_alc_avg_sdu_fw, tvb, offset+10, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_alc_avg_sdu_bw, tvb, offset+11, 1, ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_plc(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.2 -> 7.3.19 Preferred Link characteristics
     *
     * 7.4.11 CPS-SDU Bit Rate -> Maximum CPS-SDU Bit Rate
     * 7.4.11 CPS-SDU Bit Rate -> Average CPS-SDU Bit Rate
     * 7.4.12 CPS-SDU Size -> Maximum CPS-SDU Size
     * 7.4.12 CPS-SDU Size -> Average CPS-SDU Size
     */

    if (len != 12) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree, hf_alcap_plc_max_br_fw, tvb, offset+0, 2, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_plc_max_br_bw, tvb, offset+2, 2, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_plc_avg_br_fw, tvb, offset+4, 2, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_plc_avg_br_bw, tvb, offset+6, 2, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_plc_max_sdu_fw, tvb, offset+8, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_plc_max_sdu_bw, tvb, offset+9, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_plc_avg_sdu_fw, tvb, offset+10, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_plc_avg_sdu_bw, tvb, offset+11, 1, ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_osaid(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info) {
    /*
     * Q.2630.1 -> 7.3.6 Originating signalling association identifier
     *
     * 7.4.2 Signalling Association Identifier -> Originating Signalling Association
     */
    if (len != 4) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    msg_info->osaid = tvb_get_ntohl(tvb,offset);

    proto_tree_add_item(tree, hf_alcap_osaid, tvb, offset, 4, ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_sugr(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info) {
    /*
     * Q.2630.1 -> 7.3.7 Served user generated reference
     *
     * 7.4.10 Served User Generated Reference
     */
    if (len != 4) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    msg_info->sugr = tvb_get_ntohl(tvb,offset);

    proto_tree_add_item(tree, hf_alcap_sugr, tvb, offset, 4, ENC_NA);

    return NULL;
}

static const gchar* dissect_fields_suci(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.2 -> 7.3.22 Served user correlation ID
     *
     * 7.4.22 Served user correlation ID
     */
    if (len != 4) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree, hf_alcap_suci, tvb, offset, len, ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_ssia(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.2 -> 7.3.9 Service specific information (Audio)
     *
     * 7.4.5 Organizational Unique Identifier
     */
    if (len != 8) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree, hf_alcap_ssia_pr_type, tvb, offset+0,1,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_ssia_pr_id, tvb, offset+2,1,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_ssia_frm, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssia_cmd, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssia_mfr2, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssia_mfr1, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssia_dtmf, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssia_cas, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssia_fax, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssia_pcm, tvb, offset+3,1,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_ssia_max_len, tvb, offset+4,2,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_ssia_oui, tvb, offset+5,3,ENC_NA);

    return NULL;
}

static const gchar* dissect_fields_ssim(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.1 -> 7.3.10 Service specific information (Multirate)
     *
     * 7.4.7 Multirate Service
     */
    if (len != 3) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_ssim_frm,tvb,offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssim_mult,tvb,offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssim_max,tvb,offset+1,2,ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_ssisa(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.1 -> 7.3.11 Service specific information (SAR-assured)
     *
     * 7.4.8 Segmentation and Reassembly (Assured Data Transfer)
     */
    if (len != 14) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_ssisa_max_sssar_fw,tvb,offset,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssisa_max_sssar_bw,tvb,offset+3,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssisa_max_sscop_sdu_fw,tvb,offset+6,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssisa_max_sscop_sdu_bw,tvb,offset+8,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssisa_max_sscop_uu_fw,tvb,offset+10,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssisa_max_sscop_uu_bw,tvb,offset+12,2,ENC_BIG_ENDIAN);

    proto_tree_add_expert_format(tree,pinfo,&ei_alcap_undecoded,tvb,offset,14,"Not yet decoded: Q.2630.1 7.4.8");

    return NULL;
}

static const gchar* dissect_fields_ssisu(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.1 -> 7.3.12 Service specific information (SAR-unassured)
     *
     * 7.4.9 Segmentation and Reassembly (Unassured Data Transfer)
     */
    if (len != 7) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_ssisu_max_sssar_fw,tvb,offset,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssisu_max_sssar_bw,tvb,offset+3,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssisu_ted,tvb,offset+6,1,ENC_BIG_ENDIAN);
    proto_tree_add_expert_format(tree,pinfo,&ei_alcap_undecoded,tvb,offset,7,"Not yet decoded: Q.2630.1 7.4.9");

    return NULL;
}

static const gchar* dissect_fields_none(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * used for parameters that have no fields, just checks if len==0
     *
     * Q.2630.1 -> 7.3.13 Test connection indicator
     * Q.2630.2 -> 7.3.20 Modify support for link characteristics
     * Q.2630.2 -> 7.3.21 Modify support for service specific information
     * Q.2630.3 -> 7.3.35 Transfer capability support
     *
     */
    if (len != 0) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    return NULL;
}

static const gchar* dissect_fields_ssiae(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.2 -> 7.3.15 Service specific information (Audio Extended)
     *
     * 7.4.19 Audio extended service
     * 7.4.5 Organizational unique identifier
     */
    if (len != 8) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree, hf_alcap_ssiae_pr_type, tvb, offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssiae_lb, tvb, offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssiae_rc, tvb, offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssiae_syn, tvb, offset,1,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_ssiae_pr_id, tvb, offset+1,1,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_ssiae_frm, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssiae_cmd, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssiae_mfr2, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssiae_mfr1, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssiae_dtmf, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssiae_cas, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssiae_fax, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_ssiae_pcm, tvb, offset+3,1,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_ssiae_max_len, tvb, offset+4,2,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_ssiae_oui, tvb, offset+5,3,ENC_NA);

    return NULL;
}

static const gchar* dissect_fields_pssiae(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.2 -> 7.3.17 Preferred service specific information (Audio Extended)
     *
     * 7.4.19 Audio extended service
     * 7.4.5 Organizational unique identifier
     */
    if (len != 8) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree, hf_alcap_pssiae_pr_type, tvb, offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_pssiae_lb, tvb, offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_pssiae_rc, tvb, offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_pssiae_syn, tvb, offset,1,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_pssiae_pr_id, tvb, offset+1,1,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_pssiae_frm, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_pssiae_cmd, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_pssiae_mfr2, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_pssiae_mfr1, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_pssiae_dtmf, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_pssiae_cas, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_pssiae_fax, tvb, offset+3,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_pssiae_pcm, tvb, offset+3,1,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_pssiae_max_len, tvb, offset+4,2,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_alcap_pssiae_oui, tvb, offset+5,3,ENC_NA);

    return NULL;
}

static const gchar* dissect_fields_ssime(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.2 -> 7.3.16 Service specific information (Multirate Extended)
     *
     * 7.4.20 Multirate extended service
     */
    if (len != 3) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_ssime_frm,tvb,offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssime_lb,tvb,offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssime_mult,tvb,offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_ssime_max,tvb,offset+1,2,ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_pssime(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.2 -> 7.3.18 Preferred service specific information (Multirate Extended)
     *
     * 7.4.20 Multirate extended service
     */
    if (len != 3) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_pssime_frm,tvb,offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pssime_lb,tvb,offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pssime_mult,tvb,offset,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pssime_max,tvb,offset+1,2,ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_acc(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.3 -> 7.3.25 Automatic congestion control
     *
     * 7.4.23 AAL type 2 Node Automatic Congestion Level
     */
    if (len != 1) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_acc_level,tvb,offset,len,ENC_BIG_ENDIAN);
    return NULL;
}


static const gchar* dissect_fields_cp(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.3 -> 7.3.26 Connection Priority
     *
     * 7.4.24 Priority
     */
    if (len != 1) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_cp,tvb,offset,len,ENC_BIG_ENDIAN);
    return NULL;
}

static const gchar* dissect_fields_pt(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.2 -> 7.3.14 Path Type
     *
     * 7.4.21 AAL Type 2 Path QoS Codepoint
     */
    if (len != 1) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_pt,tvb,offset,len,ENC_BIG_ENDIAN);
    return NULL;
}


static const gchar* dissect_fields_hc(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.3 -> 7.3.27 Hop counter
     *
     * 7.4.25 AAL type 2 Hop Counter
     */
    if (len != 1) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_hc,tvb,offset,len,ENC_BIG_ENDIAN);
    return NULL;
}


static const gchar* dissect_fields_fbw(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.3 -> 7.3.32 Fixed bandwidth transfer capability
     *
     * 7.4.26 CPS Bit rate -> Peak CPS bit rate
     * 7.4.27 CPS Token Bucket Size -> CPS token bucket size associated with Peak CPS bit rate
     * 7.4.28 Maximum allowed CPS packet size
     */
    if (len != 12) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_fbw_br_fw,tvb,offset,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_fbw_br_bw,tvb,offset+3,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_fbw_bucket_fw,tvb,offset+6,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_fbw_bucket_bw,tvb,offset+8,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_fbw_size_fw,tvb,offset+10,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_fbw_size_bw,tvb,offset+11,1,ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_pfbw(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.3 -> 7.3.29 Preferred fixed bandwidth transfer capability
     *
     * 7.4.26 CPS Bit rate -> Peak CPS bit rate
     * 7.4.27 CPS Token Bucket Size -> CPS token bucket size associated with Peak CPS bit rate
     * 7.4.28 Maximum allowed CPS packet size
     */
    if (len != 12) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_pfbw_br_fw,tvb,offset,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pfbw_br_bw,tvb,offset+3,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pfbw_bucket_fw,tvb,offset+6,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pfbw_bucket_bw,tvb,offset+8,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pfbw_size_fw,tvb,offset+10,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pfbw_size_bw,tvb,offset+11,1,ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_vbws(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.3 -> 7.3.33 Variable bandwidth stringent transfer capability
     *
     * 7.4.26 CPS Bit rate -> Peak CPS bit rate
     * 7.4.27 CPS Token Bucket Size -> CPS token bucket size associated with Peak CPS bit rate
     * 7.4.28 Maximum allowed CPS packet size
     * 7.4.29 Source Traffic Type
     */
    if (len != 13) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_vbws_br_fw,tvb,offset,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbws_br_bw,tvb,offset+3,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbws_bucket_fw,tvb,offset+6,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbws_bucket_bw,tvb,offset+8,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbws_size_fw,tvb,offset+10,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbws_size_bw,tvb,offset+11,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbws_size_bw,tvb,offset+11,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbws_stt,tvb,offset+12,1,ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_pvbws(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.3 -> 7.3.30 Preferred variable bandwidth stringent transfer capability
     *
     * 7.4.26 CPS Bit rate -> Peak CPS bit rate
     * 7.4.27 CPS Token Bucket Size -> CPS token bucket size associated with Peak CPS bit rate
     * 7.4.28 Maximum allowed CPS packet size
     * 7.4.29 Source Traffic Type
     */
    if (len != 13) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_pvbws_br_fw,tvb,offset,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbws_br_bw,tvb,offset+3,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbws_bucket_fw,tvb,offset+6,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbws_bucket_bw,tvb,offset+8,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbws_size_fw,tvb,offset+10,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbws_size_bw,tvb,offset+11,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbws_size_bw,tvb,offset+11,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbws_stt,tvb,offset+12,1,ENC_BIG_ENDIAN);

    return NULL;
}


static const gchar* dissect_fields_pvbwt(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.3 -> 7.3.31 Preferred variable bandwidth tolerant transfer capability
     *
     * 7.4.26 CPS Bit rate -> Peak CPS bit rate
     * 7.4.27 CPS Token Bucket Size -> CPS token bucket size associated with Peak CPS bit rate
     * 7.4.26 CPS Bit rate -> Sustainable CPS bit rate
     * 7.4.27 CPS Token Bucket Size -> CPS token bucket size associated with Sustainable CPS bit rate
     * 7.4.28 Maximum allowed CPS packet size
     */

    if (len != 22) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_pvbwt_peak_br_fw,tvb,offset,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbwt_peak_br_bw,tvb,offset+3,3,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree,hf_alcap_pvbwt_peak_bucket_fw,tvb,offset+6,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbwt_peak_bucket_bw,tvb,offset+8,2,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree,hf_alcap_pvbwt_sust_br_fw,tvb,offset+10,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbwt_sust_br_bw,tvb,offset+13,3,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree,hf_alcap_pvbwt_sust_bucket_fw,tvb,offset+16,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbwt_sust_bucket_bw,tvb,offset+18,2,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree,hf_alcap_pvbwt_size_fw,tvb,offset+20,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_pvbwt_size_bw,tvb,offset+21,1,ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_vbwt(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.3 -> 7.3.34 Variable bandwidth tolerant transfer capability
     *
     * 7.4.26 CPS Bit rate -> Peak CPS bit rate
     * 7.4.27 CPS Token Bucket Size -> CPS token bucket size associated with Peak CPS bit rate
     * 7.4.26 CPS Bit rate -> Sustainable CPS bit rate
     * 7.4.27 CPS Token Bucket Size -> CPS token bucket size associated with Sustainable CPS bit rate
     * 7.4.28 Maximum allowed CPS packet size
     */
    if (len != 22) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    proto_tree_add_item(tree,hf_alcap_vbwt_peak_br_fw,tvb,offset,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbwt_peak_br_bw,tvb,offset+3,3,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree,hf_alcap_vbwt_peak_bucket_fw,tvb,offset+6,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbwt_peak_bucket_bw,tvb,offset+8,2,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree,hf_alcap_vbwt_sust_br_fw,tvb,offset+10,3,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbwt_sust_br_bw,tvb,offset+13,3,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree,hf_alcap_vbwt_sust_bucket_fw,tvb,offset+16,2,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbwt_sust_bucket_bw,tvb,offset+18,2,ENC_BIG_ENDIAN);

    proto_tree_add_item(tree,hf_alcap_vbwt_size_fw,tvb,offset+20,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(tree,hf_alcap_vbwt_size_bw,tvb,offset+21,1,ENC_BIG_ENDIAN);

    return NULL;
}

static const gchar* dissect_fields_sut(packet_info* pinfo, tvbuff_t *tvb, proto_tree *tree, int offset, int len, alcap_message_info_t* msg_info _U_) {
    /*
     * Q.2630.1 -> 7.3.8 Served user transport
     *
     * 7.4.18 Served User Transport
     */
    guint sut_len;

    if (len < 2) {
        proto_tree_add_expert(tree, pinfo, &ei_alcap_parameter_field_bad_length, tvb, offset, len);
        return NULL;
    }

    sut_len = tvb_get_guint8(tvb,offset);

    proto_tree_add_item(tree, hf_alcap_sut_len, tvb, offset, 1, ENC_BIG_ENDIAN);
    proto_tree_add_item(tree, hf_alcap_sut, tvb, offset, sut_len, ENC_NA);

    return NULL;
}

typedef const gchar* (*alcap_parameter_dissector_t) (packet_info* pinfo, tvbuff_t*, proto_tree*, int, int, alcap_message_info_t*);

typedef struct _alcap_param_info_t {
    gint ett;
    const gchar* name;
    alcap_parameter_dissector_t dissect_fields;
    gboolean run_wo_tree;
} alcap_param_info_t;

static alcap_param_info_t param_infos[]  = {
    {-1, "Unknown", dissect_fields_unknown, FALSE},
    {-1, "CAU",     dissect_fields_cau,     TRUE},
    {-1, "CEID",    dissect_fields_ceid,    TRUE},
    {-1, "DESEA",   dissect_fields_desea,   FALSE},
    {-1, "DNSEA",   dissect_fields_dnsea,   TRUE},
    {-1, "ALC",     dissect_fields_alc,     FALSE},
    {-1, "OSAID",   dissect_fields_osaid,   TRUE},
    {-1, "SUGR",    dissect_fields_sugr,    TRUE},
    {-1, "SUT",     dissect_fields_sut,     FALSE},
    {-1, "SSIA",    dissect_fields_ssia,    FALSE},
    {-1, "SSIM",    dissect_fields_ssim,    FALSE},
    {-1, "SSISA",   dissect_fields_ssisa,   FALSE},
    {-1, "SSISU",   dissect_fields_ssisu,   FALSE},
    {-1, "TCI",     dissect_fields_none,    FALSE},
    {-1, "MSLC",    dissect_fields_none,    FALSE},
    {-1, "MSSSI",   dissect_fields_none,    FALSE},
    {-1, "PT",      dissect_fields_pt,      FALSE},
    {-1, "PLC",     dissect_fields_plc,     FALSE},
    {-1, "PSSIAE",  dissect_fields_pssiae,  FALSE},
    {-1, "PSSIME",  dissect_fields_pssime,  FALSE},
    {-1, "SUCI",    dissect_fields_suci,    FALSE},
    {-1, "ONSEA",   dissect_fields_onsea,   TRUE},
    {-1, "SSIAE",   dissect_fields_ssiae,   FALSE},
    {-1, "SSIME",   dissect_fields_ssime,   FALSE},
    {-1, "ACC",     dissect_fields_acc,     FALSE},
    {-1, "CP",      dissect_fields_cp,      FALSE},
    {-1, "HC",      dissect_fields_hc,      FALSE},
    {-1, "OESEA",   dissect_fields_oesea,   FALSE},
    {-1, "PFBW",    dissect_fields_pfbw,    FALSE},
    {-1, "PVBWS",   dissect_fields_pvbws,   FALSE},
    {-1, "PVBWT",   dissect_fields_pvbwt,   FALSE},
    {-1, "TTC",     dissect_fields_none,    FALSE},
    {-1, "FBW",     dissect_fields_fbw,     FALSE},
    {-1, "VBWS",    dissect_fields_vbws,    FALSE},
    {-1, "VBWT",    dissect_fields_vbwt,    FALSE},
    {-1, "TCS",     dissect_fields_none,    FALSE}
};

#define GET_PARAM_INFO(id) ( array_length(param_infos) <= id ? &(param_infos[0]) : &(param_infos[id]) )

static void alcap_leg_tree(proto_tree* tree, tvbuff_t* tvb, packet_info *pinfo, const alcap_leg_info_t* leg) {
    proto_item* pi;

    tree = proto_tree_add_subtree(tree,tvb,0,0,ett_leg,NULL,"[ALCAP Leg Info]");

    if (leg->dsaid) {
        pi = proto_tree_add_uint(tree,hf_alcap_leg_dsaid,tvb,0,0,leg->dsaid);
        PROTO_ITEM_SET_GENERATED(pi);
    }

    if (leg->osaid) {
        pi = proto_tree_add_uint(tree,hf_alcap_leg_osaid,tvb,0,0,leg->osaid);
        PROTO_ITEM_SET_GENERATED(pi);
    }

    if (leg->pathid) {
        pi = proto_tree_add_uint(tree,hf_alcap_leg_pathid,tvb,0,0,leg->pathid);
        PROTO_ITEM_SET_GENERATED(pi);
    }

    if (leg->cid) {
        pi = proto_tree_add_uint(tree,hf_alcap_leg_cid,tvb,0,0,leg->cid);
        PROTO_ITEM_SET_GENERATED(pi);
    }

    if (leg->sugr) {
        pi = proto_tree_add_uint(tree,hf_alcap_leg_sugr,tvb,0,0,leg->sugr);
        PROTO_ITEM_SET_GENERATED(pi);
    }

    if (leg->orig_nsap) {
        pi = proto_tree_add_string(tree,hf_alcap_leg_onsea,tvb,0,0,leg->orig_nsap);
        PROTO_ITEM_SET_GENERATED(pi);
    }

    if (leg->dest_nsap) {
        pi = proto_tree_add_string(tree,hf_alcap_leg_dnsea,tvb,0,0,leg->dest_nsap);
        PROTO_ITEM_SET_GENERATED(pi);
    }

    if(leg->release_cause) {
        pi = proto_tree_add_uint(tree,hf_alcap_leg_release_cause,tvb,0,0,leg->release_cause);
        PROTO_ITEM_SET_GENERATED(pi);
        if (leg->release_cause && leg->release_cause != 31)
            expert_add_info(pinfo, pi, &ei_alcap_release_cause_not31);
    }

    if(leg->msgs) {
        alcap_msg_data_t* msg = leg->msgs;
        proto_item* pi_local;
        proto_tree* tree_local = proto_tree_add_subtree(tree,tvb,0,0,ett_leg,&pi_local,"[Messages in this leg]");

        do {
            pi_local = proto_tree_add_uint(tree_local,hf_alcap_leg_frame,tvb,0,0,msg->framenum);
            proto_item_set_text(pi_local,"%s in frame %u",
                                val_to_str_ext_const(msg->msg_type,&msg_type_strings_ext,"Unknown message"),
                                msg->framenum);
            PROTO_ITEM_SET_GENERATED(pi_local);
        } while (( msg = msg->next));

    }

}


extern void alcap_tree_from_bearer_key(proto_tree* tree, tvbuff_t* tvb, packet_info *pinfo, const  gchar* key) {
    alcap_leg_info_t* leg = (alcap_leg_info_t*)wmem_tree_lookup_string(legs_by_bearer,key,0);

    if (leg) {
        alcap_leg_tree(tree,tvb,pinfo,leg);
    }
}

#define GET_MSG_TYPE(id) ( array_length(msg_types) <= id ? &(msg_types[0]) : &(msg_types[id]) )

static int dissect_alcap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_) {
    proto_tree *alcap_tree = NULL;
    alcap_message_info_t* msg_info = wmem_new0(wmem_packet_scope(), alcap_message_info_t);
    int len = tvb_reported_length(tvb);
    int offset;
    proto_item* pi;
    proto_tree* compat_tree;

    col_set_str(pinfo->cinfo, COL_PROTOCOL, alcap_proto_name_short);

    if (tree) {
        proto_item *alcap_item = proto_tree_add_item(tree, proto_alcap, tvb, 0, -1, ENC_NA);
        alcap_tree = proto_item_add_subtree(alcap_item, ett_alcap);
    }

    proto_tree_add_item(alcap_tree,hf_alcap_dsaid,tvb,0,4,ENC_BIG_ENDIAN);
    pi = proto_tree_add_item(alcap_tree,hf_alcap_msg_id,tvb,4,1,ENC_BIG_ENDIAN);

    msg_info->dsaid = tvb_get_ntohl(tvb, 0);
    msg_info->msg_type = tvb_get_guint8(tvb, 4);

    expert_add_info(pinfo, pi, &ei_alcap_response);

    col_set_str(pinfo->cinfo, COL_INFO, val_to_str_const(msg_info->msg_type, msg_type_strings, "Unknown Message"));

    pi = proto_tree_add_item(alcap_tree,hf_alcap_compat,tvb,5,1,ENC_NA);
    compat_tree = proto_item_add_subtree(pi,ett_compat);
    proto_tree_add_item(compat_tree,hf_alcap_compat_pass_on_sni,tvb,5,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(compat_tree,hf_alcap_compat_pass_on_ii,tvb,5,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(compat_tree,hf_alcap_compat_general_sni,tvb,5,1,ENC_BIG_ENDIAN);
    proto_tree_add_item(compat_tree,hf_alcap_compat_general_ii,tvb,5,1,ENC_BIG_ENDIAN);

    len -= ALCAP_MSG_HEADER_LEN;
    offset = ALCAP_MSG_HEADER_LEN;

    while(len > 0) {
        guint param_id = tvb_get_guint8(tvb,offset);
        guint param_len = tvb_get_guint8(tvb,offset+2);
        const alcap_param_info_t* param_info = GET_PARAM_INFO(param_id);
        proto_tree* param_tree;
        const gchar* colinfo_str = NULL;

        pi = proto_tree_add_item(alcap_tree,hf_alcap_param_id,tvb,offset,1,ENC_BIG_ENDIAN);
        param_tree = proto_item_add_subtree(pi,param_info->ett);

        pi = proto_tree_add_item(param_tree,hf_alcap_compat,tvb,offset+1,1,ENC_NA);
        compat_tree = proto_item_add_subtree(pi,ett_compat);
        proto_tree_add_item(compat_tree,hf_alcap_compat_pass_on_sni,tvb,offset+1,1,ENC_BIG_ENDIAN);
        proto_tree_add_item(compat_tree,hf_alcap_compat_pass_on_ii,tvb,offset+1,1,ENC_BIG_ENDIAN);
        proto_tree_add_item(compat_tree,hf_alcap_compat_general_sni,tvb,offset+1,1,ENC_BIG_ENDIAN);
        proto_tree_add_item(compat_tree,hf_alcap_compat_general_ii,tvb,offset+1,1,ENC_BIG_ENDIAN);

        proto_tree_add_item(param_tree,hf_alcap_param_len,tvb,offset+2,1,ENC_BIG_ENDIAN);

        if ( alcap_tree || param_info->run_wo_tree )
            colinfo_str = param_info->dissect_fields(pinfo,tvb,param_tree,offset+3,param_len,msg_info);

        col_append_fstr(pinfo->cinfo, COL_INFO, " %s",colinfo_str);

        len -= 3 + param_len;
        offset += 3 + param_len;
    }

    if (keep_persistent_info) {
        alcap_leg_info_t* leg = NULL;
        switch (msg_info->msg_type) {
            case 5: /* ERQ */
                if( ! ( leg = (alcap_leg_info_t*)wmem_tree_lookup32(legs_by_osaid,msg_info->osaid) )) {
                    leg = wmem_new(wmem_file_scope(), alcap_leg_info_t);

                    leg->dsaid = 0;
                    leg->osaid = msg_info->osaid;
                    leg->pathid = msg_info->pathid;
                    leg->cid = msg_info->cid;
                    leg->sugr = msg_info->sugr;
                    leg->orig_nsap = NULL;
                    leg->dest_nsap = NULL;

                    if (msg_info->orig_nsap) {
                        gchar* key = wmem_strdup_printf(wmem_file_scope(), "%s:%.8X",msg_info->orig_nsap,leg->sugr);
                        ascii_strdown_inplace(key);

                        leg->orig_nsap = wmem_strdup(wmem_file_scope(), msg_info->orig_nsap);

                        if (!wmem_tree_lookup_string(legs_by_bearer,key,0)) {
                            wmem_tree_insert_string(legs_by_bearer,key,leg,0);
                        }
                    }

                    if (msg_info->dest_nsap) {
                        gchar* key = wmem_strdup_printf(wmem_file_scope(), "%s:%.8X",msg_info->dest_nsap,leg->sugr);
                        ascii_strdown_inplace(key);

                        leg->dest_nsap = wmem_strdup(wmem_file_scope(), msg_info->dest_nsap);

                        if (!wmem_tree_lookup_string(legs_by_bearer,key,0)) {
                            wmem_tree_insert_string(legs_by_bearer,key,leg,0);
                        }
                    }

                    leg->msgs = NULL;
                    leg->release_cause = 0;

                    wmem_tree_insert32(legs_by_osaid,leg->osaid,leg);
                }
                break;
            case 4: /* ECF */
                if(( leg = (alcap_leg_info_t *)wmem_tree_lookup32(legs_by_osaid,msg_info->dsaid) )) {
                    leg->dsaid = msg_info->osaid;
                    wmem_tree_insert32(legs_by_dsaid,leg->dsaid,leg);
                }
                break;
            case 6: /* RLC */
            case 12:  /* MOA */
            case 13: /* MOR */
            case 14: /* MOD */
                if( ( leg = (alcap_leg_info_t *)wmem_tree_lookup32(legs_by_osaid,msg_info->dsaid) )
                    || ( leg = (alcap_leg_info_t *)wmem_tree_lookup32(legs_by_dsaid,msg_info->dsaid) ) ) {

                    if(msg_info->release_cause)
                        leg->release_cause =  msg_info->release_cause;

                }
                break;
            case 7: /* REL */
                leg = (alcap_leg_info_t *)wmem_tree_lookup32(legs_by_osaid,msg_info->dsaid);

                if(leg) {
                    leg->release_cause =  msg_info->release_cause;
                } else if (( leg = (alcap_leg_info_t *)wmem_tree_lookup32(legs_by_dsaid,msg_info->dsaid) )) {
                    leg->release_cause =  msg_info->release_cause;
                }
                    break;
            default:
                break;
        }

        if (leg != NULL && ( (! leg->msgs) || leg->msgs->last->framenum < pinfo->num ) ) {
            alcap_msg_data_t* msg = wmem_new(wmem_file_scope(), alcap_msg_data_t);
            msg->msg_type = msg_info->msg_type;
            msg->framenum = pinfo->num;
            msg->next = NULL;
            msg->last = NULL;

            if (leg->msgs) {
                leg->msgs->last->next = msg;
            } else {
                leg->msgs = msg;
            }

            leg->msgs->last = msg;

        }

        if (tree && leg) alcap_leg_tree(alcap_tree,tvb,pinfo,leg);
    }
    return tvb_captured_length(tvb);
}

void
proto_register_alcap(void)
{
    module_t *alcap_module;
    expert_module_t *expert_alcap;

    static hf_register_info hf[] = {
    { &hf_alcap_dsaid,
      { "DSAID", "alcap.dsaid",
        FT_UINT32, BASE_HEX, NULL, 0,
        "Destination Service Association ID", HFILL }
    },
    { &hf_alcap_msg_id,
      { "Message Type", "alcap.msg_type",
        FT_UINT8, BASE_DEC | BASE_EXT_STRING, &msg_type_strings_ext, 0,
        NULL, HFILL }
    },
    { &hf_alcap_compat,
      { "Message Compatibility", "alcap.compat",
        FT_BYTES, BASE_NONE, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_compat_pass_on_sni,
      { "Pass-On SNI", "alcap.compat.pass.sni",
        FT_UINT8, BASE_DEC, VALS(send_notification), 0x40,
        "Send Notification Indicator", HFILL }
    },
    { &hf_alcap_compat_pass_on_ii,
      { "Pass-On II", "alcap.compat.pass.ii",
        FT_UINT8, BASE_DEC, VALS(instruction_indicator), 0x30,
        "Instruction Indicator", HFILL }
    },
    { &hf_alcap_compat_general_sni,
      { "General SNI", "alcap.compat.general.sni",
        FT_UINT8, BASE_DEC, VALS(send_notification), 0x04,
        "Send Notification Indicator", HFILL }
    },
    { &hf_alcap_compat_general_ii,
      { "General II", "alcap.compat.general.ii",
        FT_UINT8, BASE_DEC, VALS(instruction_indicator), 0x03,
        "Instruction Indicator", HFILL }
    },

    { &hf_alcap_unknown,
      { "Unknown Field Data", "alcap.unknown.field",
        FT_BYTES, BASE_NONE, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_param_id,
      { "Parameter", "alcap.param",
        FT_UINT8, BASE_DEC, VALS(msg_parm_strings), 0,
        "Parameter Id", HFILL }
    },
    { &hf_alcap_param_len,
      { "Length", "alcap.param.len",
        FT_UINT8, BASE_DEC, NULL, 0,
        "Parameter Length", HFILL }
    },

    { &hf_alcap_cau_coding,
      { "Cause Coding", "alcap.cau.coding",
        FT_UINT8, BASE_DEC, VALS(cause_coding_vals), 0x03,
        NULL, HFILL }
    },
    { &hf_alcap_cau_value_itu,
      { "Cause Value (ITU)", "alcap.cau.value",
        FT_UINT8, BASE_DEC, VALS(cause_values_itu), 0x7f,
        NULL, HFILL }
    },
    { &hf_alcap_cau_value_non_itu,
      { "Cause Value (Other)", "alcap.cau.value",
        FT_UINT8, BASE_DEC, NULL, 0x7f,
        NULL, HFILL }
    },
    { &hf_alcap_cau_diag,
      { "Diagnostic", "alcap.cau.diag",
        FT_BYTES, BASE_NONE, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_cau_diag_len,
      { "Length", "alcap.cau.diag.len",
        FT_UINT8, BASE_DEC, NULL, 0,
        "Diagnostics Length", HFILL }
    },
    { &hf_alcap_cau_diag_msg,
      { "Message Identifier", "alcap.cau.diag.msg",
        FT_UINT8, BASE_DEC | BASE_EXT_STRING, &msg_type_strings_ext, 0,
        NULL, HFILL }
    },
    { &hf_alcap_cau_diag_param_id,
      { "Parameter Identifier", "alcap.cau.diag.param",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_cau_diag_field_num,
      { "Field Number", "alcap.cau.diag.field_num",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_ceid_pathid,
      { "Path ID", "alcap.ceid.pathid",
        FT_UINT32, BASE_DEC|BASE_SPECIAL_VALS, VALS(all_paths_vals), 0,
        NULL, HFILL }
    },
    { &hf_alcap_ceid_cid,
      { "CID", "alcap.ceid.cid",
        FT_UINT8, BASE_DEC|BASE_SPECIAL_VALS, VALS(all_cids_vals), 0,
        NULL, HFILL }
    },

    { &hf_alcap_dnsea,
      { "Address", "alcap.dnsea.addr",
        FT_BYTES, BASE_NONE, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_alc_max_br_fw,
      { "Maximum Forward Bit Rate", "alcap.alc.bitrate.max.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_alc_max_br_bw,
      { "Maximum Backwards Bit Rate", "alcap.alc.bitrate.max.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_alc_avg_br_fw,
      { "Average Forward Bit Rate", "alcap.alc.bitrate.avg.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_alc_avg_br_bw,
      { "Average Backwards Bit Rate", "alcap.alc.bitrate.avg.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_alc_max_sdu_fw,
      { "Maximum Forward CPS SDU Size", "alcap.alc.sdusize.max.fw",
        FT_UINT8, BASE_DEC, NULL, 0x7f,
        NULL, HFILL }
    },
    { &hf_alcap_alc_max_sdu_bw,
      { "Maximum Backwards CPS SDU Size", "alcap.alc.sdusize.max.bw",
        FT_UINT8, BASE_DEC, NULL, 0x7f,
        NULL, HFILL }
    },
    { &hf_alcap_alc_avg_sdu_fw,
      { "Average Forward CPS SDU Size", "alcap.alc.sdusize.avg.fw",
        FT_UINT8, BASE_DEC, NULL, 0x7f,
        NULL, HFILL }
    },
    { &hf_alcap_alc_avg_sdu_bw,
      { "Average Backwards CPS SDU Size", "alcap.alc.sdusize.avg.bw",
        FT_UINT8, BASE_DEC, NULL, 0x7f,
        NULL, HFILL }
    },

    { &hf_alcap_osaid,
      { "OSAID", "alcap.osaid",
        FT_UINT32, BASE_HEX, NULL, 0,
        "Originating Service Association ID", HFILL }
    },

    { &hf_alcap_sugr,
      { "SUGR", "alcap.sugr",
        FT_BYTES, BASE_NONE, NULL, 0,
        "Served User Generated Reference", HFILL }
    },

    { &hf_alcap_sut_len,
      { "SUT Length", "alcap.sut.sut_len",
        FT_UINT8, BASE_HEX, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_sut,
      { "SUT", "alcap.sut.transport",
        FT_BYTES, BASE_NONE, NULL, 0,
        "Served User Transport", HFILL }
    },

    { &hf_alcap_ssia_pr_type,
      { "Profile Type", "alcap.ssia.profile.type",
        FT_UINT8, BASE_DEC, VALS(audio_profile_type), 0xc0,
        "I.366.2 Profile Type", HFILL }
    },
    { &hf_alcap_ssia_pr_id,
      { "Profile Id", "alcap.ssia.profile.id",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssia_frm,
      { "Frame Mode", "alcap.ssia.frm",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x80,
        NULL, HFILL }
    },
    { &hf_alcap_ssia_cmd,
      { "Circuit Mode", "alcap.ssia.cmd",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x40,
        NULL, HFILL }
    },
    { &hf_alcap_ssia_mfr2,
      { "Multi-Frequency R2", "alcap.ssia.mfr2",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x20,
        NULL, HFILL }
    },
    { &hf_alcap_ssia_mfr1,
      { "Multi-Frequency R1", "alcap.ssia.mfr1",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x10,
        NULL, HFILL }
    },
    { &hf_alcap_ssia_dtmf,
      { "DTMF", "alcap.ssia.dtmf",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x08,
        NULL, HFILL }
    },
    { &hf_alcap_ssia_cas,
      { "CAS", "alcap.ssia.cas",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x04,
        "Channel Associated Signalling", HFILL }
    },
    { &hf_alcap_ssia_fax,
      { "Fax", "alcap.ssia.fax",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x02,
        "Facsimile", HFILL }
    },
    { &hf_alcap_ssia_pcm,
      { "PCM Mode", "alcap.ssia.pcm",
        FT_UINT8, BASE_DEC, VALS(alaw_ulaw), 0x01,
        NULL, HFILL }
    },
    { &hf_alcap_ssia_max_len,
      { "Max Len of FM Data", "alcap.ssia.max_fmdata_len",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssia_oui,
      { "OUI", "alcap.ssia.oui",
        FT_BYTES, BASE_NONE, NULL, 0,
        "Organizational Unique Identifier", HFILL }
    },

    { &hf_alcap_ssim_frm,
      { "Frame Mode", "alcap.ssim.frm",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x80,
        NULL, HFILL }
    },
    { &hf_alcap_ssim_mult,
      { "Multiplier", "alcap.ssim.mult",
        FT_UINT8, BASE_DEC, NULL, 0x1f,
        NULL, HFILL }
    },
    { &hf_alcap_ssim_max,
      { "Max Len", "alcap.ssim.max",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_ssisa_max_sssar_fw,
      { "Maximum Len of SSSAR-SDU Forward", "alcap.ssisa.sssar.max_len.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssisa_max_sssar_bw,
      { "Maximum Len of SSSAR-SDU Backwards", "alcap.ssisa.sssar.max_len.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssisa_max_sscop_sdu_fw,
      { "Maximum Len of SSSAR-SDU Forward", "alcap.ssisa.sscop.max_sdu_len.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssisa_max_sscop_sdu_bw,
      { "Maximum Len of SSSAR-SDU Backwards", "alcap.ssisa.sscop.max_sdu_len.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssisa_max_sscop_uu_fw,
      { "Maximum Len of SSSAR-SDU Forward", "alcap.ssisa.sscop.max_uu_len.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssisa_max_sscop_uu_bw,
      { "Maximum Len of SSSAR-SDU Backwards", "alcap.ssisa.sscop.max_uu_len.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_ssisu_max_sssar_fw,
      { "Maximum Len of SSSAR-SDU Forward", "alcap.ssisu.sssar.max_len.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssisu_max_sssar_bw,
      { "Maximum Len of SSSAR-SDU Backwards", "alcap.ssisu.sssar.max_len.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssisu_ted,
      { "Transmission Error Detection", "alcap.ssisu.ted",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x80,
        NULL, HFILL }
    },

    { &hf_alcap_pt,
      { "QoS Codepoint", "alcap.pt.codepoint",
        FT_UINT8, BASE_DEC, NULL, 0x0,
        NULL, HFILL }
    },

    { &hf_alcap_plc_max_br_fw,
      { "Maximum Forward Bit Rate", "alcap.plc.bitrate.max.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_plc_max_br_bw,
      { "Maximum Backwards Bit Rate", "alcap.plc.bitrate.max.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_plc_avg_br_fw,
      { "Average Forward Bit Rate", "alcap.plc.bitrate.avg.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_plc_avg_br_bw,
      { "Average Backwards Bit Rate", "alcap.plc.bitrate.avg.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_plc_max_sdu_fw,
      { "Maximum Forward CPS SDU Size", "alcap.plc.sdusize.max.fw",
        FT_UINT8, BASE_DEC, NULL, 0x7f,
        NULL, HFILL }
    },
    { &hf_alcap_plc_max_sdu_bw,
      { "Maximum Backwards CPS SDU Size", "alcap.plc.sdusize.max.bw",
        FT_UINT8, BASE_DEC, NULL, 0x7f,
        NULL, HFILL }
    },
    { &hf_alcap_plc_avg_sdu_fw,
      { "Maximum Forward CPS SDU Size", "alcap.plc.sdusize.max.fw",
        FT_UINT8, BASE_DEC, NULL, 0x7f,
        NULL, HFILL }
    },
    { &hf_alcap_plc_avg_sdu_bw,
      { "Maximum Backwards CPS SDU Size", "alcap.plc.sdusize.max.bw",
        FT_UINT8, BASE_DEC, NULL, 0x7f,
        NULL, HFILL }
    },

    { &hf_alcap_pssiae_pr_type,
      { "Profile Type", "alcap.pssiae.profile.type",
        FT_UINT8, BASE_DEC, VALS(audio_profile_type), 0xc0,
        "I.366.2 Profile Type", HFILL }
    },
    { &hf_alcap_pssiae_pr_id,
      { "Profile Id", "alcap.pssiae.profile.id",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pssiae_lb,
      { "Loopback", "alcap.pssiae.lb",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0xc0,
        NULL, HFILL }
    },
    { &hf_alcap_pssiae_rc,
      { "Rate Control", "alcap.pssiae.rc",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0xc0,
        NULL, HFILL }
    },
    { &hf_alcap_pssiae_syn,
      { "Synchronization", "alcap.pssiae.syn",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0xc0,
        "Transport of synchronization of change in SSCS operation", HFILL }
    },
    { &hf_alcap_pssiae_frm,
      { "Frame Mode", "alcap.pssiae.frm",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x80,
        NULL, HFILL }
    },
    { &hf_alcap_pssiae_cmd,
      { "Circuit Mode", "alcap.pssiae.cmd",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x40,
        NULL, HFILL }
    },
    { &hf_alcap_pssiae_mfr2,
      { "Multi-Frequency R2", "alcap.pssiae.mfr2",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x20,
        NULL, HFILL }
    },
    { &hf_alcap_pssiae_mfr1,
      { "Multi-Frequency R1", "alcap.pssiae.mfr1",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x10,
        NULL, HFILL }
    },
    { &hf_alcap_pssiae_dtmf,
      { "DTMF", "alcap.pssiae.dtmf",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x08,
        NULL, HFILL }
    },
    { &hf_alcap_pssiae_cas,
      { "CAS", "alcap.pssiae.cas",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x04,
        "Channel Associated Signalling", HFILL }
    },
    { &hf_alcap_pssiae_fax,
      { "Fax", "alcap.pssiae.fax",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x02,
        "Facsimile", HFILL }
    },
    { &hf_alcap_pssiae_pcm,
      { "PCM Mode", "alcap.pssiae.pcm",
        FT_UINT8, BASE_DEC, VALS(alaw_ulaw), 0x01,
        NULL, HFILL }
    },
    { &hf_alcap_pssiae_max_len,
      { "Max Len of FM Data", "alcap.pssiae.max_fmdata_len",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pssiae_oui,
      { "OUI", "alcap.pssiae.oui",
        FT_BYTES, BASE_NONE, NULL, 0,
        "Organizational Unique Identifier", HFILL }
    },

    { &hf_alcap_pssime_frm,
      { "Frame Mode", "alcap.pssime.frm",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x80,
        NULL, HFILL }
    },
    { &hf_alcap_pssime_lb,
      { "Loopback", "alcap.pssime.lb",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x40,
        NULL, HFILL }
    },
    { &hf_alcap_pssime_mult,
      { "Multiplier", "alcap.pssime.mult",
        FT_UINT8, BASE_DEC, NULL, 0x1f,
        NULL, HFILL }
    },
    { &hf_alcap_pssime_max,
      { "Max Len", "alcap.pssime.max",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_suci,
      { "SUCI", "alcap.suci",
        FT_UINT8, BASE_HEX, NULL, 0,
        "Served User Correlation Id", HFILL }
    },

    { &hf_alcap_onsea,
      { "Address", "alcap.onsea.addr",
        FT_BYTES, BASE_NONE, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_ssiae_pr_type,
      { "Profile Type", "alcap.ssiae.profile.type",
        FT_UINT8, BASE_DEC, VALS(audio_profile_type), 0xc0,
        "I.366.2 Profile Type", HFILL }
    },
    { &hf_alcap_ssiae_lb,
      { "Loopback", "alcap.ssiae.lb",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0xc0,
        NULL, HFILL }
    },
    { &hf_alcap_ssiae_rc,
      { "Rate Control", "alcap.ssiae.rc",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0xc0,
        NULL, HFILL }
    },
    { &hf_alcap_ssiae_syn,
      { "Synchronization", "alcap.ssiae.syn",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0xc0,
        "Transport of synchronization of change in SSCS operation", HFILL }
    },
    { &hf_alcap_ssiae_pr_id,
      { "Profile Id", "alcap.ssiae.profile.id",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssiae_frm,
      { "Frame Mode", "alcap.ssiae.frm",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x80,
        NULL, HFILL }
    },
    { &hf_alcap_ssiae_cmd,
      { "Circuit Mode", "alcap.ssiae.cmd",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x40,
        NULL, HFILL }
    },
    { &hf_alcap_ssiae_mfr2,
      { "Multi-Frequency R2", "alcap.ssiae.mfr2",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x20,
        NULL, HFILL }
    },
    { &hf_alcap_ssiae_mfr1,
      { "Multi-Frequency R1", "alcap.ssiae.mfr1",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x10,
        NULL, HFILL }
    },
    { &hf_alcap_ssiae_dtmf,
      { "DTMF", "alcap.ssiae.dtmf",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x08,
        NULL, HFILL }
    },
    { &hf_alcap_ssiae_cas,
      { "CAS", "alcap.ssiae.cas",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x04,
        "Channel Associated Signalling", HFILL }
    },
    { &hf_alcap_ssiae_fax,
      { "Fax", "alcap.ssiae.fax",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x02,
        "Facsimile", HFILL }
    },
    { &hf_alcap_ssiae_pcm,
      { "PCM Mode", "alcap.ssiae.pcm",
        FT_UINT8, BASE_DEC, VALS(alaw_ulaw), 0x01,
        NULL, HFILL }
    },
    { &hf_alcap_ssiae_max_len,
      { "Max Len of FM Data", "alcap.ssiae.max_fmdata_len",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_ssiae_oui,
      { "OUI", "alcap.ssiae.oui",
        FT_BYTES, BASE_NONE, NULL, 0,
        "Organizational Unique Identifier", HFILL }
    },

    { &hf_alcap_ssime_frm,
      { "Frame Mode", "alcap.ssime.frm",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x80,
        NULL, HFILL }
    },
    { &hf_alcap_ssime_lb,
      { "Loopback", "alcap.ssime.lb",
        FT_UINT8, BASE_DEC, VALS(enabled_disabled), 0x40,
        NULL, HFILL }
    },
    { &hf_alcap_ssime_mult,
      { "Multiplier", "alcap.ssime.mult",
        FT_UINT8, BASE_DEC, NULL, 0x1f,
        NULL, HFILL }
    },
    { &hf_alcap_ssime_max,
      { "Max Len", "alcap.ssime.max",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_acc_level,
      { "Congestion Level", "alcap.acc.level",
        FT_UINT8, BASE_DEC, VALS(congestion_level), 0,
        NULL, HFILL }
    },

    { &hf_alcap_cp,
      { "Level", "alcap.cp.level",
        FT_UINT8, BASE_DEC, VALS(connection_priority), 0x07,
        NULL, HFILL }
    },

    { &hf_alcap_hc,
      { "Codepoint", "alcap.hc.codepoint",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_pfbw_br_fw,
      { "CPS Forward Bitrate", "alcap.pfbw.bitrate.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pfbw_br_bw,
      { "CPS Backwards Bitrate", "alcap.pfbw.bitrate.bw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pfbw_bucket_fw,
      { "Forward CPS Bucket Size", "alcap.pfbw.bucket_size.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pfbw_bucket_bw,
      { "Backwards CPS Bucket Size", "alcap.pfbw.bucket_size.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pfbw_size_fw,
      { "Forward CPS Packet Size", "alcap.pfbw.max_size.fw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pfbw_size_bw,
      { "Backwards CPS Packet Size", "alcap.pfbw.max_size.bw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_pvbws_br_fw,
      { "Peak CPS Forward Bitrate", "alcap.pvbws.bitrate.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbws_br_bw,
      { "Peak CPS Backwards Bitrate", "alcap.pvbws.bitrate.bw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbws_bucket_fw,
      { "Peak Forward CPS Bucket Size", "alcap.pvbws.bucket_size.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbws_bucket_bw,
      { "Peak Backwards CPS Bucket Size", "alcap.pvbws.bucket_size.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbws_size_fw,
      { "Forward CPS Packet Size", "alcap.pvbws.max_size.fw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbws_size_bw,
      { "Backwards CPS Packet Size", "alcap.pvbws.max_size.bw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbws_stt,
      { "Source Traffic Type", "alcap.pvbws.stt",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_pvbwt_peak_br_fw,
      { "Peak CPS Forward Bitrate", "alcap.pvbwt.bitrate.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbwt_peak_br_bw,
      { "Peak CPS Backwards Bitrate", "alcap.pvbwt.bitrate.bw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbwt_peak_bucket_fw,
      { "Peak Forward CPS Bucket Size", "alcap.pvbwt.bucket_size.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbwt_peak_bucket_bw,
      { "Peak Backwards CPS Bucket Size", "alcap.pvbwt.bucket_size.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbwt_sust_br_fw,
      { "Sustainable CPS Forward Bitrate", "alcap.pvbwt.bitrate.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbwt_sust_br_bw,
      { "Sustainable CPS Backwards Bitrate", "alcap.pvbwt.bitrate.bw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbwt_sust_bucket_fw,
      { "Sustainable Forward CPS Bucket Size", "alcap.pvbwt.bucket_size.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbwt_sust_bucket_bw,
      { "Sustainable Backwards CPS Bucket Size", "alcap.pvbwt.bucket_size.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbwt_size_fw,
      { "Forward CPS Packet Size", "alcap.pvbwt.max_size.fw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_pvbwt_size_bw,
      { "Backwards CPS Packet Size", "alcap.pvbwt.max_size.bw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_fbw_br_fw,
      { "CPS Forward Bitrate", "alcap.fbw.bitrate.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_fbw_br_bw,
      { "CPS Backwards Bitrate", "alcap.fbw.bitrate.bw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_fbw_bucket_fw,
      { "Forward CPS Bucket Size", "alcap.fbw.bucket_size.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_fbw_bucket_bw,
      { "Backwards CPS Bucket Size", "alcap.fbw.bucket_size.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_fbw_size_fw,
      { "Forward CPS Packet Size", "alcap.fbw.max_size.fw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_fbw_size_bw,
      { "Backwards CPS Packet Size", "alcap.fbw.max_size.bw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_vbws_br_fw,
      { "CPS Forward Bitrate", "alcap.vbws.bitrate.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbws_br_bw,
      { "CPS Backwards Bitrate", "alcap.vbws.bitrate.bw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbws_bucket_fw,
      { "Forward CPS Bucket Size", "alcap.vbws.bucket_size.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbws_bucket_bw,
      { "Backwards CPS Bucket Size", "alcap.vbws.bucket_size.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbws_size_fw,
      { "Forward CPS Packet Size", "alcap.vbws.max_size.fw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbws_size_bw,
      { "Backwards CPS Packet Size", "alcap.vbws.max_size.bw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbws_stt,
      { "Source Traffic Type", "alcap.vbws.stt",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_vbwt_peak_br_fw,
      { "Peak CPS Forward Bitrate", "alcap.vbwt.bitrate.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbwt_peak_br_bw,
      { "Peak CPS Backwards Bitrate", "alcap.vbwt.bitrate.bw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbwt_peak_bucket_fw,
      { "Peak Forward CPS Bucket Size", "alcap.vbwt.bucket_size.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbwt_peak_bucket_bw,
      { "Peak Backwards CPS Bucket Size", "alcap.vbwt.bucket_size.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbwt_sust_br_fw,
      { "Sustainable CPS Forward Bitrate", "alcap.vbwt.bitrate.fw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbwt_sust_br_bw,
      { "Sustainable CPS Backwards Bitrate", "alcap.vbwt.bitrate.bw",
        FT_UINT24, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbwt_sust_bucket_fw,
      { "Sustainable Forward CPS Bucket Size", "alcap.vbwt.bucket_size.fw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbwt_sust_bucket_bw,
      { "Sustainable Backwards CPS Bucket Size", "alcap.vbwt.bucket_size.bw",
        FT_UINT16, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbwt_size_fw,
      { "Forward CPS Packet Size", "alcap.vbwt.max_size.fw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_vbwt_size_bw,
      { "Backwards CPS Packet Size", "alcap.vbwt.max_size.bw",
        FT_UINT8, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },

    { &hf_alcap_leg_osaid,
      { "Leg's ERQ OSA id", "alcap.leg.osaid",
        FT_UINT32, BASE_HEX, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_leg_dsaid,
      { "Leg's ECF OSA id", "alcap.leg.dsaid",
        FT_UINT32, BASE_HEX, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_leg_pathid,
      { "Leg's path id", "alcap.leg.pathid",
        FT_UINT32, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_leg_cid,
      { "Leg's channel id", "alcap.leg.cid",
        FT_UINT32, BASE_DEC, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_leg_sugr,
      { "Leg's SUGR", "alcap.leg.sugr",
        FT_UINT32, BASE_HEX, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_leg_dnsea,
      { "Leg's destination NSAP", "alcap.leg.dnsea",
        FT_STRING, BASE_NONE, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_leg_onsea,
      { "Leg's originating NSAP", "alcap.leg.onsea",
        FT_STRING, BASE_NONE, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_leg_frame,
      { "a message of this leg", "alcap.leg.msg",
        FT_FRAMENUM, BASE_NONE, NULL, 0,
        NULL, HFILL }
    },
    { &hf_alcap_leg_release_cause,
      { "Leg's cause value in REL", "alcap.leg.cause",
        FT_UINT8, BASE_DEC, VALS(cause_values_itu), 0,
        NULL, HFILL }
    },

    };

    gint* ett[] = {
        &ett_alcap,
        &ett_leg,
        &ett_compat,
        &ett_cau_diag,
        &param_infos[0].ett,
        &param_infos[1].ett,
        &param_infos[2].ett,
        &param_infos[3].ett,
        &param_infos[4].ett,
        &param_infos[5].ett,
        &param_infos[6].ett,
        &param_infos[7].ett,
        &param_infos[8].ett,
        &param_infos[9].ett,
        &param_infos[10].ett,
        &param_infos[11].ett,
        &param_infos[12].ett,
        &param_infos[13].ett,
        &param_infos[14].ett,
        &param_infos[15].ett,
        &param_infos[16].ett,
        &param_infos[17].ett,
        &param_infos[18].ett,
        &param_infos[19].ett,
        &param_infos[20].ett,
        &param_infos[21].ett,
        &param_infos[22].ett,
        &param_infos[23].ett,
        &param_infos[24].ett,
        &param_infos[25].ett,
        &param_infos[26].ett,
        &param_infos[27].ett,
        &param_infos[28].ett,
        &param_infos[29].ett,
        &param_infos[30].ett,
        &param_infos[31].ett,
        &param_infos[32].ett,
        &param_infos[33].ett,
        &param_infos[34].ett,
        &param_infos[35].ett,
    };

    static ei_register_info ei[] = {
        { &ei_alcap_parameter_field_bad_length, { "alcap.parameter_field_bad_length", PI_MALFORMED, PI_WARN, "Wrong length for parameter fields", EXPFILL }},
        { &ei_alcap_undecoded, { "alcap.undecoded", PI_UNDECODED, PI_WARN, "Undecoded", EXPFILL }},
        { &ei_alcap_release_cause_not31, { "alcap.leg.cause.not31", PI_RESPONSE_CODE, PI_WARN, "Leg Release cause != 31", EXPFILL }},
        { &ei_alcap_abnormal_release, { "alcap.abnormal_release", PI_RESPONSE_CODE, PI_WARN, "Abnormal Release", EXPFILL }},
        { &ei_alcap_response, { "alcap.response", PI_RESPONSE_CODE, PI_NOTE, " ", EXPFILL }},
    };

    proto_alcap = proto_register_protocol(alcap_proto_name, alcap_proto_name_short, "alcap");

    alcap_handle = register_dissector("alcap", dissect_alcap, proto_alcap);

    proto_register_field_array(proto_alcap, hf, array_length(hf));
    proto_register_subtree_array(ett, array_length(ett));
    expert_alcap = expert_register_protocol(proto_alcap);
    expert_register_field_array(expert_alcap, ei, array_length(ei));

    alcap_module = prefs_register_protocol(proto_alcap, NULL);

    prefs_register_bool_preference(alcap_module, "leg_info",
                                   "Keep Leg Information",
                                   "Whether persistent call leg information is to be kept",
                                   &keep_persistent_info);

    legs_by_dsaid  = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
    legs_by_osaid  = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
    legs_by_bearer = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
}


void
proto_reg_handoff_alcap(void)
{
    dissector_add_uint("mtp3.service_indicator", MTP_SI_AAL2, alcap_handle);
}

/*
 * Editor modelines  -  http://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:
 */
