forked from osmocom/wireshark
811 lines
18 KiB
C
811 lines
18 KiB
C
![]() |
/* packet-gsm_ss.c
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* Routines for GSM Supplementary Services dissection
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*
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* NOTE:
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* Routines are shared by GSM MAP/GSM A dissectors.
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* This file provides SHARED routines and is NOT a
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* standalone dissector.
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*
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* Copyright 2004, Michael Lum <mlum [AT] telostech.com>
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* In association with Telos Technology Inc.
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*
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* Title 3GPP Other
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*
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* Reference [1]
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* Mobile radio Layer 3 supplementary service specification;
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* Formats and coding
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* (3GPP TS 24.080 version 4.3.0 Release 4)
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*
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* Michael Lum <mlum [AT] telostech.com>,
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* Created (2004).
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*
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* $Id: packet-gsm_ss.c,v 1.1 2004/03/19 07:54:57 guy Exp $
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1998 Gerald Combs
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*
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* Copied from packet-gsm_map.c (where "WHATEVER_FILE_YOU_USED"
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* is a dissector file; if you just copied this from README.developer,
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* don't bother with the "Copied from" - you don't even need to put
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* in a "Copied from" if you copied an existing dissector, especially
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* if the bulk of the code in the new dissector is your code)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "epan/packet.h"
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#include "tap.h"
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#include "asn1.h"
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#include "packet-tcap.h"
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#include "packet-gsm_ss.h"
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const value_string gsm_ss_opr_code_strings[] = {
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{ 10, "RegisterSS" },
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{ 11, "EraseSS" },
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{ 12, "ActivateSS" },
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{ 13, "DeactivateSS" },
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{ 14, "InterrogateSS" },
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{ 16, "NotifySS" },
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{ 17, "RegisterPassword" },
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{ 18, "GetPassword" },
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{ 19, "ProcessUnstructuredSS-Data" },
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{ 38, "ForwardCheckSS-Indication" },
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{ 59, "ProcessUnstructuredSS-Request" },
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{ 60, "UnstructuredSS-Request" },
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{ 61, "UnstructuredSS-Notify" },
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{ 77, "EraseCC-Entry" },
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{ 119, "AccessRegisterCCEntry" },
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{ 120, "ForwardCUG-Info" },
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{ 121, "SplitMPTY" },
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{ 122, "RetrieveMPTY" },
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{ 123, "HoldMPTY" },
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{ 124, "BuildMPTY" },
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{ 125, "ForwardChargeAdvice" },
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{ 126, "ExplicitCT" },
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{ 0, NULL }
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};
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/* never initialize in field array */
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static int hf_null = -1;
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#define HF_NULL &hf_null
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gint gsm_ss_ett_sequence = -1;
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gint gsm_ss_ett_param = -1;
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/* GENERIC HELPER FUNCTIONS */
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static gchar *
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my_match_strval(guint32 val, const value_string *vs, gint *idx)
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{
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gint i = 0;
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while (vs[i].strptr) {
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if (vs[i].value == val)
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{
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*idx = i;
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return(vs[i].strptr);
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}
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i++;
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}
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*idx = -1;
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return(NULL);
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}
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/* PARAMETER dissection */
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static void
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param_ssCode(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field)
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{
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guint saved_offset;
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gint32 value;
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gchar *str = NULL;
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hf_field = hf_field;
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saved_offset = asn1->offset;
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asn1_int32_value_decode(asn1, len, &value);
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switch (value)
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{
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case 0x00:
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str = "allSS - all SS";
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break;
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case 0x10:
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str = "allLineIdentificationSS - all line identification SS";
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break;
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case 0x11:
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str = "clip - calling line identification presentation";
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break;
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case 0x12:
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str = "clir - calling line identification restriction";
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break;
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case 0x13:
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str = "colp - connected line identification presentation";
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break;
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case 0x14:
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str = "colr - connected line identification restriction";
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break;
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case 0x15:
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str = "mci - malicious call identification";
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break;
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case 0x18:
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str = "allNameIdentificationSS - all name indentification SS";
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break;
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case 0x19:
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str = "cnap - calling name presentation";
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break;
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case 0x20:
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str = "allForwardingSS - all forwarding SS";
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break;
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case 0x21:
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str = "cfu - call forwarding unconditional";
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break;
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case 0x28:
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str = "allCondForwardingSS - all conditional forwarding SS";
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break;
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case 0x29:
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str = "cfb - call forwarding busy";
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break;
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case 0x2a:
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str = "cfnry - call forwarding on no reply";
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break;
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case 0x2b:
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str = "cfnrc - call forwarding on mobile subscriber not reachable";
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break;
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case 0x24:
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str = "cd - call deflection";
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break;
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case 0x30:
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str = "allCallOfferingSS - all call offering SS includes also all forwarding SS";
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break;
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case 0x31:
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str = "ect - explicit call transfer";
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break;
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case 0x32:
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str = "mah - mobile access hunting";
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break;
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case 0x40:
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str = "allCallCompletionSS - all Call completion SS";
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break;
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case 0x41:
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str = "cw - call waiting";
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break;
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case 0x42:
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str = "hold - call hold";
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break;
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case 0x43:
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str = "ccbs-A - completion of call to busy subscribers, originating side";
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break;
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case 0x44:
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str = "ccbs-B - completion of call to busy subscribers, destination side";
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break;
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case 0x45:
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str = "mc - multicall";
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break;
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case 0x50:
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str = "allMultiPartySS - all multiparty SS";
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break;
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case 0x51:
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str = "multiPTY - multiparty";
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break;
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case 0x60:
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str = "allCommunityOfInterestSS - all community of interest SS";
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break;
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case 0x61:
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str = "cug - closed user group";
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break;
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case 0x70:
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str = "allChargingSS - all charging SS";
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break;
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case 0x71:
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str = "aoci - advice of charge information";
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break;
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case 0x72:
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str = "aocc - advice of charge charging";
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break;
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case 0x80:
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str = "allAdditionalInfoTransferSS - all additional information transfer SS";
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break;
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case 0x81:
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str = "uus1 - UUS1 user-to-user signalling";
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break;
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case 0x82:
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str = "uus2 - UUS2 user-to-user signalling";
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break;
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case 0x83:
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str = "uus3 - UUS3 user-to-user signalling";
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break;
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case 0x90:
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str = "allBarringSS - all barring SS";
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break;
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case 0x91:
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str = "barringOfOutgoingCalls";
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break;
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case 0x92:
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str = "baoc - barring of all outgoing calls";
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break;
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case 0x93:
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str = "boic - barring of outgoing international calls";
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break;
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case 0x94:
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str = "boicExHC - barring of outgoing international calls except those directed to the home PLMN";
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break;
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case 0x99:
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str = "barringOfIncomingCalls";
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break;
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case 0x9a:
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str = "baic - barring of all incoming calls";
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break;
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case 0x9b:
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str = "bicRoam - barring of incoming calls when roaming outside home PLMN Country";
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break;
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case 0xf0:
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str = "allPLMN-specificSS";
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break;
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case 0xa0:
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str = "allCallPrioritySS - all call priority SS";
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break;
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case 0xa1:
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str = "emlpp - enhanced Multilevel Precedence Pre-emption (EMLPP) service";
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break;
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case 0xb0:
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str = "allLCSPrivacyException - all LCS Privacy Exception Classes";
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break;
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case 0xb1:
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str = "universal - allow location by any LCS client";
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break;
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case 0xb2:
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str = "callrelated - allow location by any value added LCS client to which a call is established from the target MS";
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break;
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case 0xb3:
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str = "callunrelated - allow location by designated external value added LCS clients";
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break;
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case 0xb4:
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str = "plmnoperator - allow location by designated PLMN operator LCS clients";
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break;
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case 0xc0:
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str = "allMOLR-SS - all Mobile Originating Location Request Classes";
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break;
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case 0xc1:
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str = "basicSelfLocation - allow an MS to request its own location";
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break;
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case 0xc2:
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str = "autonomousSelfLocation - allow an MS to perform self location without interaction with the PLMN for a predetermined period of time";
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break;
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case 0xc3:
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str = "transferToThirdParty - allow an MS to request transfer of its location to another LCS client";
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break;
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default:
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/*
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* XXX
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*/
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str = "reserved for future use";
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break;
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}
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proto_tree_add_text(tree, asn1->tvb, saved_offset, len, str);
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}
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/*
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* See GSM 03.11
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*/
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static void
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param_ssStatus(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field)
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{
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guint saved_offset;
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gint32 value;
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char bigbuf[1024];
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hf_field = hf_field;
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saved_offset = asn1->offset;
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asn1_int32_value_decode(asn1, len, &value);
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other_decode_bitfield_value(bigbuf, value, 0xf0, 8);
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proto_tree_add_text(tree, asn1->tvb,
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saved_offset, 1,
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"%s : Unused",
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bigbuf);
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/*
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* Q bit is valid only if A bit is "Active"
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*/
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other_decode_bitfield_value(bigbuf, value, 0x08, 8);
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proto_tree_add_text(tree, asn1->tvb,
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saved_offset, 1,
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"%s : Q bit: %s",
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bigbuf,
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(value & 0x01) ?
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((value & 0x08) ? "Quiescent" : "Operative") : "N/A");
|
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|
|
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other_decode_bitfield_value(bigbuf, value, 0x04, 8);
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proto_tree_add_text(tree, asn1->tvb,
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saved_offset, 1,
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"%s : P bit: %sProvisioned",
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bigbuf,
|
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(value & 0x04) ? "" : "Not ");
|
||
|
|
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other_decode_bitfield_value(bigbuf, value, 0x02, 8);
|
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proto_tree_add_text(tree, asn1->tvb,
|
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saved_offset, 1,
|
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"%s : R bit: %sRegistered",
|
||
|
bigbuf,
|
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(value & 0x02) ? "" : "Not ");
|
||
|
|
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other_decode_bitfield_value(bigbuf, value, 0x01, 8);
|
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|
proto_tree_add_text(tree, asn1->tvb,
|
||
|
saved_offset, 1,
|
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|
"%s : A bit: %sActive",
|
||
|
bigbuf,
|
||
|
(value & 0x01) ? "" : "Not ");
|
||
|
}
|
||
|
|
||
|
|
||
|
typedef enum
|
||
|
{
|
||
|
GSM_SS_P_SS_CODE, /* SS-Code */
|
||
|
GSM_SS_P_SS_STATUS, /* SS-Status */
|
||
|
GSM_SS_P_NONE /* NONE */
|
||
|
}
|
||
|
param_idx_t;
|
||
|
|
||
|
#define NUM_PARAM_1 (GSM_SS_P_NONE+1)
|
||
|
static gint ett_param_1[NUM_PARAM_1];
|
||
|
static void (*param_1_fcn[])(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field) = {
|
||
|
param_ssCode, /* SS-Code */
|
||
|
param_ssStatus, /* SS-Status */
|
||
|
NULL /* NONE */
|
||
|
};
|
||
|
|
||
|
static int *param_1_hf[] = {
|
||
|
HF_NULL, /* SS-Code */
|
||
|
HF_NULL, /* SS-Status */
|
||
|
NULL /* NONE */
|
||
|
};
|
||
|
|
||
|
#define GSM_SS_START_SUBTREE(_Gtree, _Gsaved_offset, _Gtag, _Gstr1, _Gett, _Gdef_len_p, _Glen_p, _Gsubtree_p) \
|
||
|
{ \
|
||
|
guint _len_offset; \
|
||
|
proto_item *_item; \
|
||
|
\
|
||
|
_len_offset = asn1->offset; \
|
||
|
asn1_length_decode(asn1, _Gdef_len_p, _Glen_p); \
|
||
|
\
|
||
|
_item = \
|
||
|
proto_tree_add_text(_Gtree, asn1->tvb, _Gsaved_offset, -1, _Gstr1); \
|
||
|
\
|
||
|
_Gsubtree_p = proto_item_add_subtree(_item, _Gett); \
|
||
|
\
|
||
|
proto_tree_add_text(_Gsubtree_p, asn1->tvb, \
|
||
|
_Gsaved_offset, _len_offset - _Gsaved_offset, "Tag: 0x%02x", _Gtag); \
|
||
|
\
|
||
|
if (*_Gdef_len_p) \
|
||
|
{ \
|
||
|
proto_tree_add_text(_Gsubtree_p, asn1->tvb, \
|
||
|
_len_offset, asn1->offset - _len_offset, "Length: %d", *_Glen_p); \
|
||
|
} \
|
||
|
else \
|
||
|
{ \
|
||
|
proto_tree_add_text(_Gsubtree_p, asn1->tvb, \
|
||
|
_len_offset, asn1->offset - _len_offset, "Length: Indefinite"); \
|
||
|
\
|
||
|
*_Glen_p = tcap_find_eoc(asn1); \
|
||
|
} \
|
||
|
\
|
||
|
proto_item_set_len(_item, (asn1->offset - _Gsaved_offset) + *_Glen_p + \
|
||
|
(*_Gdef_len_p ? 0 : TCAP_EOC_LEN)); \
|
||
|
}
|
||
|
|
||
|
|
||
|
#define GSM_SS_PARAM_DISPLAY(Gtree, Goffset, Gtag, Ga1, Ga2) \
|
||
|
{ \
|
||
|
gint _ett_param_idx; \
|
||
|
guint _len; \
|
||
|
void (*_param_fcn)(ASN1_SCK *asn1, proto_tree *tree, guint len, int hf_field) = NULL; \
|
||
|
int *_param_hf = NULL; \
|
||
|
proto_tree *_subtree; \
|
||
|
gboolean _def_len; \
|
||
|
\
|
||
|
if (Ga1 == GSM_SS_P_NONE) \
|
||
|
{ \
|
||
|
_ett_param_idx = gsm_ss_ett_param; \
|
||
|
_param_fcn = NULL; \
|
||
|
_param_hf = HF_NULL; \
|
||
|
} \
|
||
|
else \
|
||
|
{ \
|
||
|
_ett_param_idx = ett_param_1[Ga1]; \
|
||
|
_param_fcn = param_1_fcn[Ga1]; \
|
||
|
_param_hf = param_1_hf[Ga1]; \
|
||
|
} \
|
||
|
\
|
||
|
GSM_SS_START_SUBTREE(Gtree, Goffset, Gtag, Ga2, _ett_param_idx, &_def_len, &_len, _subtree); \
|
||
|
\
|
||
|
if (_len > 0) \
|
||
|
{ \
|
||
|
if (Ga1 == GSM_SS_P_NONE || _param_fcn == NULL) \
|
||
|
{ \
|
||
|
proto_tree_add_text(_subtree, asn1->tvb, \
|
||
|
asn1->offset, _len, "Parameter Data"); \
|
||
|
\
|
||
|
asn1->offset += _len; \
|
||
|
} \
|
||
|
else \
|
||
|
{ \
|
||
|
(*_param_fcn)(asn1, _subtree, _len, *_param_hf); \
|
||
|
} \
|
||
|
} \
|
||
|
\
|
||
|
if (!_def_len) \
|
||
|
{ \
|
||
|
guint _saved_offset; \
|
||
|
\
|
||
|
_saved_offset = asn1->offset; \
|
||
|
asn1_eoc_decode(asn1, -1); \
|
||
|
\
|
||
|
proto_tree_add_text(Gtree, asn1->tvb, \
|
||
|
_saved_offset, asn1->offset - _saved_offset, "End of Contents"); \
|
||
|
} \
|
||
|
}
|
||
|
|
||
|
|
||
|
static void
|
||
|
op_generic_ss(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
|
||
|
{
|
||
|
guint orig_offset, saved_offset, len_offset;
|
||
|
guint tag, len;
|
||
|
gboolean def_len = FALSE;
|
||
|
proto_item *item;
|
||
|
proto_tree *subtree;
|
||
|
|
||
|
orig_offset = asn1->offset;
|
||
|
|
||
|
while ((tvb_length_remaining(asn1->tvb, asn1->offset) > 0) &&
|
||
|
(!tcap_check_tag(asn1, 0)))
|
||
|
{
|
||
|
if ((exp_len != 0) &&
|
||
|
((asn1->offset - orig_offset) >= exp_len))
|
||
|
{
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
saved_offset = asn1->offset;
|
||
|
asn1_id_decode1(asn1, &tag);
|
||
|
|
||
|
if (TCAP_CONSTRUCTOR(tag))
|
||
|
{
|
||
|
GSM_SS_START_SUBTREE(tree, saved_offset, tag, "Sequence",
|
||
|
gsm_ss_ett_sequence,
|
||
|
&def_len, &len, subtree);
|
||
|
|
||
|
op_generic_ss(asn1, subtree, len);
|
||
|
|
||
|
if (!def_len)
|
||
|
{
|
||
|
saved_offset = asn1->offset;
|
||
|
asn1_eoc_decode(asn1, -1);
|
||
|
|
||
|
proto_tree_add_text(subtree, asn1->tvb,
|
||
|
saved_offset, asn1->offset - saved_offset, "End of Contents");
|
||
|
}
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
len_offset = asn1->offset;
|
||
|
asn1_length_decode(asn1, &def_len, &len);
|
||
|
|
||
|
if (!def_len)
|
||
|
{
|
||
|
proto_tree_add_text(tree, asn1->tvb,
|
||
|
saved_offset, len_offset - saved_offset,
|
||
|
"Tag: 0x%02x", tag);
|
||
|
|
||
|
proto_tree_add_text(tree, asn1->tvb,
|
||
|
len_offset, asn1->offset - len_offset, "Length: Indefinite");
|
||
|
|
||
|
len = tcap_find_eoc(asn1);
|
||
|
|
||
|
op_generic_ss(asn1, tree, len);
|
||
|
|
||
|
saved_offset = asn1->offset;
|
||
|
asn1_eoc_decode(asn1, -1);
|
||
|
|
||
|
proto_tree_add_text(tree, asn1->tvb,
|
||
|
saved_offset, asn1->offset - saved_offset, "End of Contents");
|
||
|
continue;
|
||
|
}
|
||
|
|
||
|
item =
|
||
|
proto_tree_add_text(tree, asn1->tvb,
|
||
|
saved_offset, (asn1->offset - saved_offset) + len, "Parameter");
|
||
|
|
||
|
subtree = proto_item_add_subtree(item, gsm_ss_ett_param);
|
||
|
|
||
|
proto_tree_add_text(subtree, asn1->tvb,
|
||
|
saved_offset, len_offset - saved_offset,
|
||
|
"Tag: 0x%02x", tag);
|
||
|
|
||
|
proto_tree_add_text(subtree, asn1->tvb,
|
||
|
len_offset, asn1->offset - len_offset, "Length: %d", len);
|
||
|
|
||
|
if (len > 0)
|
||
|
{
|
||
|
proto_tree_add_text(subtree, asn1->tvb,
|
||
|
asn1->offset, len, "Parameter Data");
|
||
|
|
||
|
asn1->offset += len;
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
op_interrogate_ss(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
|
||
|
{
|
||
|
guint saved_offset, start_offset;
|
||
|
guint tag, len;
|
||
|
gboolean def_len = FALSE;
|
||
|
proto_tree *subtree;
|
||
|
|
||
|
exp_len = exp_len;
|
||
|
|
||
|
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
|
||
|
|
||
|
saved_offset = asn1->offset;
|
||
|
asn1_id_decode1(asn1, &tag);
|
||
|
|
||
|
if (TCAP_CONSTRUCTOR(tag) == FALSE)
|
||
|
{
|
||
|
/*
|
||
|
* Hmmm, unexpected
|
||
|
*/
|
||
|
return;
|
||
|
}
|
||
|
|
||
|
GSM_SS_START_SUBTREE(tree, saved_offset, tag, "Sequence",
|
||
|
gsm_ss_ett_sequence,
|
||
|
&def_len, &len, subtree);
|
||
|
|
||
|
start_offset = asn1->offset;
|
||
|
|
||
|
saved_offset = asn1->offset;
|
||
|
asn1_id_decode1(asn1, &tag);
|
||
|
|
||
|
GSM_SS_PARAM_DISPLAY(subtree, saved_offset, tag, GSM_SS_P_SS_CODE, "SS-Code");
|
||
|
|
||
|
op_generic_ss(asn1, subtree, len - (asn1->offset - start_offset));
|
||
|
|
||
|
if (!def_len)
|
||
|
{
|
||
|
saved_offset = asn1->offset;
|
||
|
asn1_eoc_decode(asn1, -1);
|
||
|
|
||
|
proto_tree_add_text(subtree, asn1->tvb,
|
||
|
saved_offset, asn1->offset - saved_offset, "End of Contents");
|
||
|
}
|
||
|
}
|
||
|
|
||
|
static void
|
||
|
op_interrogate_ss_rr(ASN1_SCK *asn1, proto_tree *tree, guint exp_len)
|
||
|
{
|
||
|
guint saved_offset;
|
||
|
guint tag;
|
||
|
|
||
|
exp_len = exp_len;
|
||
|
|
||
|
if (tvb_length_remaining(asn1->tvb, asn1->offset) <= 0) return;
|
||
|
|
||
|
saved_offset = asn1->offset;
|
||
|
asn1_id_decode1(asn1, &tag);
|
||
|
|
||
|
switch (tag)
|
||
|
{
|
||
|
case 0x80: /* SS-Status */
|
||
|
GSM_SS_PARAM_DISPLAY(tree, saved_offset, tag, GSM_SS_P_SS_STATUS, "SS-Status");
|
||
|
return;
|
||
|
|
||
|
case 0x82: /* BasicServiceGroupList */
|
||
|
/* FALLTHRU */
|
||
|
case 0x83: /* ForwardingFeatureList */
|
||
|
/* FALLTHRU */
|
||
|
|
||
|
case 0x84: /* GenericServiceInfo */
|
||
|
/*
|
||
|
* XXX
|
||
|
* needs implementing, let "generic" parameter dissector handle it for now
|
||
|
*/
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
/* do nothing - unexpected tag */
|
||
|
break;
|
||
|
}
|
||
|
|
||
|
op_generic_ss(asn1, tree, 0);
|
||
|
}
|
||
|
|
||
|
#define GSM_SS_NUM_OP (sizeof(gsm_ss_opr_code_strings)/sizeof(value_string))
|
||
|
static void (*op_fcn[])(ASN1_SCK *asn1, proto_tree *tree, guint exp_len) = {
|
||
|
NULL, /* RegisterSS */
|
||
|
NULL, /* EraseSS */
|
||
|
NULL, /* ActivateSS */
|
||
|
NULL, /* DeactivateSS */
|
||
|
op_interrogate_ss, /* InterrogateSS */
|
||
|
NULL, /* NotifySS */
|
||
|
NULL, /* RegisterPassword */
|
||
|
NULL, /* GetPassword */
|
||
|
NULL, /* ProcessUnstructuredSS-Data */
|
||
|
NULL, /* ForwardCheckSS-Indication */
|
||
|
NULL, /* ProcessUnstructuredSS-Request */
|
||
|
NULL, /* UnstructuredSS-Request */
|
||
|
NULL, /* UnstructuredSS-Notify */
|
||
|
NULL, /* EraseCC-Entry */
|
||
|
NULL, /* AccessRegisterCCEntry */
|
||
|
NULL, /* ForwardCUG-Info */
|
||
|
NULL, /* SplitMPTY */
|
||
|
NULL, /* RetrieveMPTY */
|
||
|
NULL, /* HoldMPTY */
|
||
|
NULL, /* BuildMPTY */
|
||
|
NULL, /* ForwardChargeAdvice */
|
||
|
NULL, /* ExplicitCT */
|
||
|
|
||
|
NULL /* NONE */
|
||
|
};
|
||
|
|
||
|
static void (*op_fcn_rr[])(ASN1_SCK *asn1, proto_tree *tree, guint exp_len) = {
|
||
|
NULL, /* RegisterSS */
|
||
|
NULL, /* EraseSS */
|
||
|
NULL, /* ActivateSS */
|
||
|
NULL, /* DeactivateSS */
|
||
|
op_interrogate_ss_rr, /* InterrogateSS */
|
||
|
NULL, /* NotifySS */
|
||
|
NULL, /* RegisterPassword */
|
||
|
NULL, /* GetPassword */
|
||
|
NULL, /* ProcessUnstructuredSS-Data */
|
||
|
NULL, /* ForwardCheckSS-Indication */
|
||
|
NULL, /* ProcessUnstructuredSS-Request */
|
||
|
NULL, /* UnstructuredSS-Request */
|
||
|
NULL, /* UnstructuredSS-Notify */
|
||
|
NULL, /* EraseCC-Entry */
|
||
|
NULL, /* AccessRegisterCCEntry */
|
||
|
NULL, /* ForwardCUG-Info */
|
||
|
NULL, /* SplitMPTY */
|
||
|
NULL, /* RetrieveMPTY */
|
||
|
NULL, /* HoldMPTY */
|
||
|
NULL, /* BuildMPTY */
|
||
|
NULL, /* ForwardChargeAdvice */
|
||
|
NULL, /* ExplicitCT */
|
||
|
|
||
|
NULL /* NONE */
|
||
|
};
|
||
|
|
||
|
void
|
||
|
gsm_ss_dissect(ASN1_SCK *asn1, proto_tree *tree, guint exp_len,
|
||
|
guint opr_code, guint comp_type_tag)
|
||
|
{
|
||
|
void (*dissect_fcn)(ASN1_SCK *asn1, proto_tree *tree, guint exp_len);
|
||
|
gchar *str;
|
||
|
gint op_idx;
|
||
|
|
||
|
|
||
|
dissect_fcn = NULL;
|
||
|
|
||
|
str = my_match_strval(opr_code, gsm_ss_opr_code_strings, &op_idx);
|
||
|
|
||
|
if (str != NULL)
|
||
|
{
|
||
|
switch (comp_type_tag)
|
||
|
{
|
||
|
case TCAP_COMP_INVOKE:
|
||
|
dissect_fcn = op_fcn[op_idx];
|
||
|
break;
|
||
|
|
||
|
case TCAP_COMP_RRL:
|
||
|
dissect_fcn = op_fcn_rr[op_idx];
|
||
|
break;
|
||
|
|
||
|
case TCAP_COMP_RE:
|
||
|
/* XXX */
|
||
|
break;
|
||
|
|
||
|
default:
|
||
|
/*
|
||
|
* no parameters should be present in the component types
|
||
|
* ignore
|
||
|
*/
|
||
|
return;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if (dissect_fcn == NULL)
|
||
|
{
|
||
|
op_generic_ss(asn1, tree, exp_len);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
(*dissect_fcn)(asn1, tree, exp_len);
|
||
|
}
|
||
|
}
|