cse2410spring2014_team4

/* packet-inap-template.c

 * Routines for INAP

 * Copyright 2004, Tim Endean <endeant@hotmail.com>

 * Built from the gsm-map dissector Copyright 2004, Anders Broman <anders.broman@ericsson.com>

 *

 * $Id$

 * Wireshark - Network traffic analyzer

 * By Gerald Combs <gerald@wireshark.org>

 * Copyright 1998 Gerald Combs

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version 2

 * of the License, or (at your option) any later version.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

 * References: ETSI 300 374

 * ITU Q.1218

 */

#include "config.h"

#include <glib.h>

#include <epan/packet.h>

#include <epan/prefs.h>

#include <epan/oids.h>

#include <epan/expert.h>

#include <epan/asn1.h>

#include "packet-ber.h"

#include "packet-inap.h"

#include "packet-q931.h"

#include "packet-e164.h"

#include "packet-isup.h"

#include "packet-tcap.h"

#include "packet-dap.h"

#include "packet-dsp.h"

#define PNAME  "Intelligent Network Application Protocol"

#define PSNAME "INAP"

#define PFNAME "inap"

void proto_register_inap(void);

void proto_reg_handoff_inap(void);

/* Initialize the protocol and registered fields */

static int proto_inap = -1;

/* include constants */

#include "packet-inap-val.h"

#include "packet-inap-hf.c"

#define MAX_SSN 254

static range_t *global_ssn_range;

static dissector_handle_t        inap_handle;

static dissector_handle_t        data_handle;

/* Global variables */

static guint32 opcode=0;

static guint32 errorCode=0;

static const char *obj_id = NULL;

static int inap_opcode_type;

#define INAP_OPCODE_INVOKE        1

#define INAP_OPCODE_RETURN_RESULT 2

#define INAP_OPCODE_RETURN_ERROR  3

#define INAP_OPCODE_REJECT        4

/* Initialize the subtree pointers */

static gint ett_inap = -1;

static gint ett_inapisup_parameter = -1;

static gint ett_inap_HighLayerCompatibility = -1;

#include "packet-inap-ett.c"

static expert_field ei_inap_unknown_invokeData = EI_INIT;

static expert_field ei_inap_unknown_returnResultData = EI_INIT;

static expert_field ei_inap_unknown_returnErrorData = EI_INIT;

#include "packet-inap-table.c"

const value_string inap_general_problem_strings[] = {

{0,"General Problem Unrecognized Component"},

{1,"General Problem Mistyped Component"},

{3,"General Problem Badly Structured Component"},

{0, NULL}

};

/* Forvard declarations */

static int dissect_invokeData(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);

static int dissect_returnResultData(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_);

static int dissect_returnErrorData(proto_tree *tree, tvbuff_t *tvb, int offset, asn1_ctx_t *actx);

#include "packet-inap-fn.c"

/*

TC-Invokable OPERATION ::=

  {activateServiceFiltering | activityTest | analysedInformation |

   analyseInformation | applyCharging | applyChargingReport |

   assistRequestInstructions | callGap | callInformationReport |

   callInformationRequest | cancel | cancelStatusReportRequest |

   collectedInformation | collectInformation | connect | connectToResource |

   continue | disconnectForwardConnection | establishTemporaryConnection |

   eventNotificationCharging | eventReportBCSM | furnishChargingInformation |

   holdCallInNetwork | initialDP | initiateCallAttempt | oAnswer |

   oCalledPartyBusy | oDisconnect | oMidCall | oNoAnswer |

   originationAttemptAuthorized | releaseCall | requestCurrentStatusReport |

   requestEveryStatusChangeReport | requestFirstStatusMatchReport |

   requestNotificationChargingEvent | requestReportBCSMEvent | resetTimer |

   routeSelectFailure | selectFacility | selectRoute | sendChargingInformation

   | serviceFilteringResponse | statusReport | tAnswer | tBusy | tDisconnect |

   termAttemptAuthorized | tMidCall | tNoAnswer | playAnnouncement |

   promptAndCollectUserInformation}

*/

#include "packet-inap-table2.c"

static guint8 inap_pdu_type = 0;

static guint8 inap_pdu_size = 0;

static void

dissect_inap(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree)

{

    proto_item                *item=NULL;

    proto_tree                *tree=NULL;

        int                                offset = 0;

        asn1_ctx_t asn1_ctx;

        asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);

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

    /* create display subtree for the protocol */

    if(parent_tree){

       item = proto_tree_add_item(parent_tree, proto_inap, tvb, 0, -1, ENC_NA);

       tree = proto_item_add_subtree(item, ett_inap);

    }

        inap_pdu_type = tvb_get_guint8(tvb, offset)&0x0f;

        /* Get the length and add 2 */

        inap_pdu_size = tvb_get_guint8(tvb, offset+1)+2;

        opcode = 0;

    dissect_inap_ROS(TRUE, tvb, offset, &asn1_ctx, tree, -1);

}

/*--- proto_reg_handoff_inap ---------------------------------------*/

static void range_delete_callback(guint32 ssn)

{

    if (ssn) {

        delete_itu_tcap_subdissector(ssn, inap_handle);

    }

}

static void range_add_callback(guint32 ssn)

{

    if (ssn) {

        add_itu_tcap_subdissector(ssn, inap_handle);

    }

}

void proto_reg_handoff_inap(void) {

    static gboolean inap_prefs_initialized = FALSE;

    static range_t *ssn_range;

    if (!inap_prefs_initialized) {

            inap_prefs_initialized = TRUE;

            inap_handle = find_dissector("inap");

                data_handle = find_dissector("data");

            oid_add_from_string("Core-INAP-CS1-Codes","0.4.0.1.1.0.3.0");

                oid_add_from_string("iso(1) identified-organization(3) icd-ecma(12) member-company(2) 1107 oen(3) inap(3) extensions(2)","1.3.12.2.1107.3.3.2");

                oid_add_from_string("alcatel(1006)","1.3.12.2.1006.64");

                oid_add_from_string("Siemens (1107)","1.3.12.2.1107");

                oid_add_from_string("iso(1) member-body(2) gb(826) national(0) ericsson(1249) inDomain(51) inNetwork(1) inNetworkcapabilitySet1plus(1) ","1.2.826.0.1249.51.1.1");

    }

    else {

            range_foreach(ssn_range, range_delete_callback);

            g_free(ssn_range);

    }

    ssn_range = range_copy(global_ssn_range);

    range_foreach(ssn_range, range_add_callback);

}

void proto_register_inap(void) {

        module_t *inap_module;

  /* List of fields */

  static hf_register_info hf[] = {

#include "packet-inap-hfarr.c"

  };

  /* List of subtrees */

  static gint *ett[] = {

    &ett_inap,

        &ett_inapisup_parameter,

        &ett_inap_HighLayerCompatibility,

#include "packet-inap-ettarr.c"

  };

  static ei_register_info ei[] = {

     { &ei_inap_unknown_invokeData, { "inap.unknown.invokeData", PI_MALFORMED, PI_WARN, "Unknown invokeData", EXPFILL }},

     { &ei_inap_unknown_returnResultData, { "inap.unknown.returnResultData", PI_MALFORMED, PI_WARN, "Unknown returnResultData", EXPFILL }},

     { &ei_inap_unknown_returnErrorData, { "inap.unknown.returnErrorData", PI_MALFORMED, PI_WARN, "Unknown returnResultData", EXPFILL }},

  };

  expert_module_t* expert_inap;

  /* Register protocol */

  proto_inap = proto_register_protocol(PNAME, PSNAME, PFNAME);

  register_dissector("inap", dissect_inap, proto_inap);

  /* Register fields and subtrees */

  proto_register_field_array(proto_inap, hf, array_length(hf));

  proto_register_subtree_array(ett, array_length(ett));

  expert_inap = expert_register_protocol(proto_inap);

  expert_register_field_array(expert_inap, ei, array_length(ei));

  /* Set default SSNs */

  range_convert_str(&global_ssn_range, "106,241", MAX_SSN);

  inap_module = prefs_register_protocol(proto_inap, proto_reg_handoff_inap);

  prefs_register_obsolete_preference(inap_module, "tcap.itu_ssn");

  prefs_register_obsolete_preference(inap_module, "tcap.itu_ssn1");

  prefs_register_range_preference(inap_module, "ssn", "TCAP SSNs",

                                  "TCAP Subsystem numbers used for INAP",

                                  &global_ssn_range, MAX_SSN);

}