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wireshark/epan/dissectors/asn1/camel/packet-camel-template.c

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/* packet-camel-template.c
* Routines for Camel
* Copyright 2004, Tim Endean <endeant@hotmail.com>
* Copyright 2005, Olivier Jacques <olivier.jacques@hp.com>
* Copyright 2005, Javier Acuna <javier.acuna@sixbell.com>
* Updated to ETSI TS 129 078 V6.4.0 (2004-3GPP TS 29.078 version 6.4.0 Release 6 1 12)
* Copyright 2005-2010, Anders Broman <anders.broman@ericsson.com>
* Updated to 3GPP TS 29.078 version 7.3.0 Release 7 (2006-06)
* Built from the gsm-map dissector Copyright 2004, Anders Broman <anders.broman@ericsson.com>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
* References: ETSI 300 374
*/
/*
* Indentation logic: this file is indented with 2 spaces indentation.
* there are no tabs.
*/
#include "config.h"
#include <stdlib.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/oids.h>
#include <epan/tap.h>
#include <epan/srt_table.h>
#include <epan/stat_tap_ui.h>
#include <epan/asn1.h>
#include <epan/expert.h>
#include <wsutil/strtoi.h>
#include "packet-ber.h"
#include "packet-camel.h"
#include "packet-q931.h"
#include "packet-e164.h"
#include "packet-isup.h"
#include "packet-gsm_map.h"
#include "packet-gsm_a_common.h"
#include "packet-inap.h"
#include "packet-tcap.h"
#define PNAME "Camel"
#define PSNAME "CAMEL"
#define PFNAME "camel"
/* Initialize the protocol and registered fields */
static int proto_camel = -1;
int date_format = 1; /*assume european date format */
int camel_tap = -1;
/* Global variables */
static guint32 opcode=0;
static guint32 errorCode=0;
static guint32 camel_ver = 0;
/* When several Camel components are received in a single TCAP message,
we have to use several buffers for the stored parameters
because else this data are erased during TAP dissector call */
#define MAX_CAMEL_INSTANCE 10
static int camelsrt_global_current=0;
static struct camelsrt_info_t camelsrt_global_info[MAX_CAMEL_INSTANCE];
/* ROSE context */
static rose_ctx_t camel_rose_ctx;
static int hf_digit = -1;
static int hf_camel_extension_code_local = -1;
static int hf_camel_error_code_local = -1;
static int hf_camel_cause_indicator = -1;
static int hf_camel_PDPTypeNumber_etsi = -1;
static int hf_camel_PDPTypeNumber_ietf = -1;
static int hf_camel_PDPAddress_IPv4 = -1;
static int hf_camel_PDPAddress_IPv6 = -1;
static int hf_camel_cellGlobalIdOrServiceAreaIdFixedLength = -1;
static int hf_camel_RP_Cause = -1;
static int hf_camel_CAMEL_AChBillingChargingCharacteristics = -1;
static int hf_camel_CAMEL_FCIBillingChargingCharacteristics = -1;
static int hf_camel_CAMEL_FCIGPRSBillingChargingCharacteristics = -1;
static int hf_camel_CAMEL_FCISMSBillingChargingCharacteristics = -1;
static int hf_camel_CAMEL_SCIBillingChargingCharacteristics = -1;
static int hf_camel_CAMEL_SCIGPRSBillingChargingCharacteristics = -1;
static int hf_camel_CAMEL_CallResult = -1;
/* Used by persistent data */
static int hf_camelsrt_SessionId=-1;
static int hf_camelsrt_RequestNumber=-1;
static int hf_camelsrt_Duplicate=-1;
static int hf_camelsrt_RequestFrame=-1;
static int hf_camelsrt_ResponseFrame=-1;
static int hf_camelsrt_DeltaTime=-1;
static int hf_camelsrt_SessionTime=-1;
static int hf_camelsrt_DeltaTime31=-1;
static int hf_camelsrt_DeltaTime75=-1;
static int hf_camelsrt_DeltaTime65=-1;
static int hf_camelsrt_DeltaTime22=-1;
static int hf_camelsrt_DeltaTime35=-1;
static int hf_camelsrt_DeltaTime80=-1;
#include "packet-camel-hf.c"
static struct camelsrt_info_t * gp_camelsrt_info;
/* Forward declarations */
static int dissect_invokeData(proto_tree *tree, tvbuff_t *tvb, int offset,asn1_ctx_t *actx);
static int dissect_returnResultData(proto_tree *tree, tvbuff_t *tvb, int offset,asn1_ctx_t *actx);
static int dissect_returnErrorData(proto_tree *tree, tvbuff_t *tvb, int offset,asn1_ctx_t *actx);
static int dissect_camel_CAMEL_AChBillingChargingCharacteristics(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_);
static int dissect_camel_CAMEL_AChBillingChargingCharacteristicsV2(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_);
static int dissect_camel_CAMEL_CallResult(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_);
static int dissect_camel_EstablishTemporaryConnectionArgV2(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_);
static int dissect_camel_SpecializedResourceReportArgV23(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_);
/* XXX - can we get rid of these and always do the SRT work? */
static gboolean gcamel_PersistentSRT=FALSE;
static gboolean gcamel_DisplaySRT=FALSE;
gboolean gcamel_StatSRT=FALSE;
/* Initialize the subtree pointers */
static gint ett_camel = -1;
static gint ett_camelisup_parameter = -1;
static gint ett_camel_AccessPointName = -1;
static gint ett_camel_pdptypenumber = -1;
static gint ett_camel_cause = -1;
static gint ett_camel_RPcause = -1;
static gint ett_camel_stat = -1;
static gint ett_camel_calledpartybcdnumber = -1;
static gint ett_camel_callingpartynumber = -1;
static gint ett_camel_originalcalledpartyid = -1;
static gint ett_camel_redirectingpartyid = -1;
static gint ett_camel_locationnumber = -1;
static gint ett_camel_additionalcallingpartynumber = -1;
static gint ett_camel_calledAddressValue = -1;
static gint ett_camel_callingAddressValue = -1;
static gint ett_camel_assistingSSPIPRoutingAddress = -1;
static gint ett_camel_correlationID = -1;
static gint ett_camel_dTMFDigitsCompleted = -1;
static gint ett_camel_dTMFDigitsTimeOut = -1;
static gint ett_camel_number = -1;
static gint ett_camel_digitsResponse = -1;
#include "packet-camel-ett.c"
static expert_field ei_camel_unknown_invokeData = EI_INIT;
static expert_field ei_camel_unknown_returnResultData = EI_INIT;
static expert_field ei_camel_unknown_returnErrorData = EI_INIT;
/* Preference settings default */
#define MAX_SSN 254
static range_t *global_ssn_range;
static dissector_handle_t camel_handle;
static dissector_handle_t camel_v1_handle;
static dissector_handle_t camel_v2_handle;
static dissector_handle_t camel_v3_handle;
static dissector_handle_t camel_v4_handle;
/* Global variables */
static guint8 PDPTypeOrganization;
static guint8 PDPTypeNumber;
const char *camel_obj_id = NULL;
gboolean is_ExtensionField =FALSE;
/* Global hash tables*/
static wmem_map_t *srt_calls = NULL;
static guint32 camelsrt_global_SessionId=1;
static int camel_opcode_type;
#define CAMEL_OPCODE_INVOKE 1
#define CAMEL_OPCODE_RETURN_RESULT 2
#define CAMEL_OPCODE_RETURN_ERROR 3
#define CAMEL_OPCODE_REJECT 4
static const value_string camel_Component_vals[] = {
{ 1, "invoke" },
{ 2, "returnResultLast" },
{ 3, "returnError" },
{ 4, "reject" },
{ 0, NULL }
};
const value_string camelSRTtype_naming[]= {
{ CAMELSRT_SESSION, "TCAP_Session" },
{ CAMELSRT_VOICE_INITIALDP, "InialDP/Continue" },
{ CAMELSRT_VOICE_ACR1, "Slice1_ACR/ACH" },
{ CAMELSRT_VOICE_ACR2, "Slice2_ACR/ACH" },
{ CAMELSRT_VOICE_ACR3, "Slice3_ACR/ACH" },
{ CAMELSRT_VOICE_DISC, "EvtRepBSCM/Release" },
{ CAMELSRT_SMS_INITIALDP, "InitialDP/ContinueSMS" },
{ CAMELSRT_GPRS_INITIALDP, "InitialDP/ContinueGPRS" },
{ CAMELSRT_GPRS_REPORT, "EvtRepGPRS/ContinueGPRS" },
{ 0,NULL}
};
#define EUROPEAN_DATE 1
#define AMERICAN_DATE 2
#define CAMEL_DATE_AND_TIME_LEN 20 /* 2*5 + 4 + 5 + 1 (HH:MM:SS;mm/dd/yyyy) */
static const enum_val_t date_options[] = {
{ "european", "DD/MM/YYYY", EUROPEAN_DATE },
{ "american", "MM/DD/YYYY", AMERICAN_DATE },
{ NULL, NULL, 0 }
};
static const value_string digit_value[] = {
{ 0, "0"},
{ 1, "1"},
{ 2, "2"},
{ 3, "3"},
{ 4, "4"},
{ 5, "5"},
{ 6, "6"},
{ 7, "7"},
{ 8, "8"},
{ 9, "9"},
{ 10, "spare"},
{ 11, "spare"},
{ 12, "spare"},
{ 13, "spare"},
{ 0, NULL}
};
#if 0
static const value_string camel_nature_of_addr_indicator_values[] = {
{ 0x00, "unknown" },
{ 0x01, "International Number" },
{ 0x02, "National Significant Number" },
{ 0x03, "Network Specific Number" },
{ 0x04, "Subscriber Number" },
{ 0x05, "Reserved" },
{ 0x06, "Abbreviated Number" },
{ 0x07, "Reserved for extension" },
{ 0, NULL }
};
static const value_string camel_number_plan_values[] = {
{ 0x00, "unknown" },
{ 0x01, "ISDN/Telephony Numbering (Rec ITU-T E.164)" },
{ 0x02, "spare" },
{ 0x03, "Data Numbering (ITU-T Rec. X.121)" },
{ 0x04, "Telex Numbering (ITU-T Rec. F.69)" },
{ 0x05, "spare" },
{ 0x06, "Land Mobile Numbering (ITU-T Rec. E.212)" },
{ 0x07, "spare" },
{ 0x08, "National Numbering" },
{ 0x09, "Private Numbering" },
{ 0x0f, "Reserved for extension" },
{ 0, NULL }
};
#endif
/* End includes from old" packet-camel.c */
static const value_string camel_RP_Cause_values[] = {
{ 1, "Unassigned (unallocated) number" },
{ 8, "Operator determined barring" },
{ 10, "Call barred" },
{ 11, "Reserved" },
{ 21, "Short message transfer rejected" },
{ 27, "Destination out of order" },
{ 28, "Unidentified subscriber" },
{ 29, "Facility Rejected" },
{ 30, "Unknown subscriber" },
{ 38, "Network out of order" },
{ 41, "Temporary failure" },
{ 42, "Congestion" },
{ 47, "Resources unavailable, unspecified" },
{ 50, "Requested facility not subscribed" },
{ 69, "Requested facility not implemented" },
{ 81, "Invalid short message transfer reference value" },
{ 95, "Semantically incorrect message" },
{ 96, "Invalid mandatory information" },
{ 97, " Message Type non-existent or not implemented" },
{ 98, "Message not compatible with short message protocol state" },
{ 99, "Information element non existent or not implemented" },
{ 111, "Protocol error, unspecified" },
{ 127, "Interworking, unspecified" },
{ 22,"Memory capacity exceeded" },
{ 0, NULL }
};
static const value_string camel_holdTreatmentIndicator_values[] = {
{ 0x01, "acceptHoldRequest" },
{ 0x02, "rejectHoldRequest" },
{ 0, NULL }
};
static const value_string camel_cwTreatmentIndicator_values[] = {
{ 0x01, "acceptCw" },
{ 0x02, "rejectCw" },
{ 0, NULL }
};
static const value_string camel_ectTreatmentIndicator_values[] = {
{ 0x01, "acceptEctRequest" },
{ 0x02, "rejectEctRequest" },
{ 0, NULL }
};
#include "packet-camel-val.h"
#include "packet-camel-table.c"
/*
* DEBUG fonctions
*/
#undef DEBUG_CAMELSRT
/* #define DEBUG_CAMELSRT */
#ifdef DEBUG_CAMELSRT
#include <stdio.h>
#include <stdarg.h>
static guint debug_level = 99;
static void dbg(guint level, char *fmt, ...) {
va_list ap;
if (level > debug_level) return;
va_start(ap,fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
}
#endif
static void
camelstat_init(struct register_srt* srt _U_, GArray* srt_array)
{
srt_stat_table *camel_srt_table;
gchar* tmp_str;
guint32 i;
camel_srt_table = init_srt_table("CAMEL Commands", NULL, srt_array, NB_CAMELSRT_CATEGORY, NULL, NULL, NULL);
for (i = 0; i < NB_CAMELSRT_CATEGORY; i++)
{
tmp_str = val_to_str_wmem(NULL,i,camelSRTtype_naming,"Unknown (%d)");
init_srt_table_row(camel_srt_table, i, tmp_str);
wmem_free(NULL, tmp_str);
}
}
static tap_packet_status
camelstat_packet(void *pcamel, packet_info *pinfo, epan_dissect_t *edt _U_, const void *psi)
{
guint idx = 0;
srt_stat_table *camel_srt_table;
const struct camelsrt_info_t * pi=(const struct camelsrt_info_t *)psi;
srt_data_t *data = (srt_data_t *)pcamel;
int i;
for (i=1; i<NB_CAMELSRT_CATEGORY; i++) {
if ( pi->bool_msginfo[i] &&
pi->msginfo[i].is_delta_time
&& pi->msginfo[i].request_available
&& !pi->msginfo[i].is_duplicate )
{
camel_srt_table = g_array_index(data->srt_array, srt_stat_table*, idx);
add_srt_table_data(camel_srt_table, i, &pi->msginfo[i].req_time, pinfo);
}
} /* category */
return TAP_PACKET_REDRAW;
}
static char camel_number_to_char(int number)
{
if (number < 10)
return (char) (number + 48 ); /* this is ASCII specific */
else
return (char) (number + 55 );
}
/*
* 24.011 8.2.5.4
*/
static guint8
dissect_RP_cause_ie(tvbuff_t *tvb, guint32 offset, _U_ guint len,
proto_tree *tree, int hf_cause_value, guint8 *cause_value)
{
guint8 oct;
guint32 curr_offset;
curr_offset = offset;
oct = tvb_get_guint8(tvb, curr_offset);
*cause_value = oct & 0x7f;
proto_tree_add_uint(tree, hf_cause_value, tvb, curr_offset, 1, oct);
curr_offset++;
if ((oct & 0x80)) {
oct = tvb_get_guint8(tvb, curr_offset);
proto_tree_add_uint_format(tree, hf_cause_value,
tvb, curr_offset, 1, oct,
"Diagnostic : %u", oct);
curr_offset++;
}
return(curr_offset - offset);
}
static int dissect_camel_InitialDPArgExtensionV2(gboolean implicit_tag _U_, tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_);
#include "packet-camel-fn.c"
#include "packet-camel-table2.c"
/*
* Functions needed for Hash-Table
*/
/* compare 2 keys */
static gint
camelsrt_call_equal(gconstpointer k1, gconstpointer k2)
{
const struct camelsrt_call_info_key_t *key1 = (const struct camelsrt_call_info_key_t *) k1;
const struct camelsrt_call_info_key_t *key2 = (const struct camelsrt_call_info_key_t *) k2;
return (key1->SessionIdKey == key2->SessionIdKey) ;
}
/* calculate a hash key */
static guint
camelsrt_call_hash(gconstpointer k)
{
const struct camelsrt_call_info_key_t *key = (const struct camelsrt_call_info_key_t *) k;
return key->SessionIdKey;
}
/*
* Find the dialog by Key and Time
*/
static struct camelsrt_call_t *
find_camelsrt_call(struct camelsrt_call_info_key_t *p_camelsrt_call_key)
{
struct camelsrt_call_t *p_camelsrt_call = NULL;
p_camelsrt_call = (struct camelsrt_call_t *)wmem_map_lookup(srt_calls, p_camelsrt_call_key);
#ifdef DEBUG_CAMELSRT
if(p_camelsrt_call) {
dbg(10,"D%d ", p_camelsrt_call->session_id);
} else {
dbg(23,"Not in hash ");
}
#endif
return p_camelsrt_call;
}
/*
* Initialize the data per call for the Service Response Time Statistics
* Data are linked to a Camel operation in a TCAP transaction
*/
static void
raz_camelsrt_call (struct camelsrt_call_t *p_camelsrt_call)
{
memset(p_camelsrt_call,0,sizeof(struct camelsrt_call_t));
}
/*
* New record to create, to identify a new transaction
*/
static struct camelsrt_call_t *
new_camelsrt_call(struct camelsrt_call_info_key_t *p_camelsrt_call_key)
{
struct camelsrt_call_info_key_t *p_new_camelsrt_call_key;
struct camelsrt_call_t *p_new_camelsrt_call = NULL;
/* Register the transaction in the hash table
with the tcap transaction Id as main Key
Once created, this entry will be updated later */
p_new_camelsrt_call_key = wmem_new(wmem_file_scope(), struct camelsrt_call_info_key_t);
p_new_camelsrt_call_key->SessionIdKey = p_camelsrt_call_key->SessionIdKey;
p_new_camelsrt_call = wmem_new(wmem_file_scope(), struct camelsrt_call_t);
raz_camelsrt_call(p_new_camelsrt_call);
p_new_camelsrt_call->session_id = camelsrt_global_SessionId++;
#ifdef DEBUG_CAMELSRT
dbg(10,"D%d ", p_new_camelsrt_call->session_id);
#endif
/* store it */
wmem_map_insert(srt_calls, p_new_camelsrt_call_key, p_new_camelsrt_call);
return p_new_camelsrt_call;
}
/*
* Routine called when the TAP is initialized.
* so hash table are (re)created
*/
static void
camelsrt_init_routine(void)
{
/* Reset the session counter */
camelsrt_global_SessionId=1;
/* The Display of SRT is enable
* 1) For wireshark only if Persistent Stat is enable
* 2) For Tshark, if the SRT CLI tap is registered
*/
gcamel_DisplaySRT=gcamel_PersistentSRT || gcamel_StatSRT;
}
/*
* Update a record with the data of the Request
*/
static void
update_camelsrt_call(struct camelsrt_call_t *p_camelsrt_call, packet_info *pinfo,
guint msg_category)
{
p_camelsrt_call->category[msg_category].req_num = pinfo->num;
p_camelsrt_call->category[msg_category].rsp_num = 0;
p_camelsrt_call->category[msg_category].responded = FALSE;
p_camelsrt_call->category[msg_category].req_time = pinfo->abs_ts;
}
/*
* Update the Camel session info, and close the session.
* Then remove the associated context, if we do not have persistentSRT enable
*/
static void
camelsrt_close_call_matching(packet_info *pinfo,
struct camelsrt_info_t *p_camelsrt_info)
{
struct camelsrt_call_t *p_camelsrt_call;
struct camelsrt_call_info_key_t camelsrt_call_key;
nstime_t delta;
p_camelsrt_info->bool_msginfo[CAMELSRT_SESSION]=TRUE;
#ifdef DEBUG_CAMELSRT
dbg(10,"\n Session end #%u\n", pinfo->num);
#endif
/* look only for matching request, if matching conversation is available. */
camelsrt_call_key.SessionIdKey = p_camelsrt_info->tcap_session_id;
#ifdef DEBUG_CAMELSRT
dbg(11,"Search key %lu ",camelsrt_call_key.SessionIdKey);
#endif
p_camelsrt_call = find_camelsrt_call(&camelsrt_call_key);
if(p_camelsrt_call) {
#ifdef DEBUG_CAMELSRT
dbg(12,"Found ");
#endif
/* Calculate Service Response Time */
nstime_delta(&delta, &pinfo->abs_ts, &p_camelsrt_call->category[CAMELSRT_SESSION].req_time);
p_camelsrt_call->category[CAMELSRT_SESSION].responded = TRUE;
p_camelsrt_info->msginfo[CAMELSRT_SESSION].request_available = TRUE;
p_camelsrt_info->msginfo[CAMELSRT_SESSION].is_delta_time = TRUE;
p_camelsrt_info->msginfo[CAMELSRT_SESSION].delta_time = delta; /* give it to tap */
p_camelsrt_info->msginfo[CAMELSRT_SESSION].req_time = p_camelsrt_call->category[CAMELSRT_SESSION].req_time;
if ( !gcamel_PersistentSRT ) {
wmem_map_remove(srt_calls, &camelsrt_call_key);
#ifdef DEBUG_CAMELSRT
dbg(20,"remove hash ");
#endif
} else {
#ifdef DEBUG_CAMELSRT
dbg(20,"keep hash ");
#endif
}
} /* call reference found */
}
/*
* Callback function for the TCAP dissector
* This callback function is used to inform the camel layer, that the session
* has been Closed or Aborted by a TCAP message without Camel component
* So, we can close the context for camel session, and update the stats.
*/
static void
camelsrt_tcap_matching(tvbuff_t *tvb _U_, packet_info *pinfo,
proto_tree *tree _U_,
struct tcaphash_context_t *p_tcap_context)
{
struct camelsrt_info_t *p_camelsrt_info;
#ifdef DEBUG_CAMELSRT
dbg(11,"Camel_CallBack ");
#endif
p_camelsrt_info=camelsrt_razinfo();
p_camelsrt_info->tcap_context=p_tcap_context;
if (p_tcap_context) {
#ifdef DEBUG_CAMELSRT
dbg(11,"Close TCAP ");
#endif
p_camelsrt_info->tcap_session_id = p_tcap_context->session_id;
camelsrt_close_call_matching(pinfo, p_camelsrt_info);
tap_queue_packet(camel_tap, pinfo, p_camelsrt_info);
}
}
/*
* Create the record identifiying the Camel session
* As the Tcap session id given by the TCAP dissector is uniq, it will be
* used as main key.
*/
static void
camelsrt_begin_call_matching(packet_info *pinfo,
struct camelsrt_info_t *p_camelsrt_info)
{
struct camelsrt_call_t *p_camelsrt_call;
struct camelsrt_call_info_key_t camelsrt_call_key;
p_camelsrt_info->bool_msginfo[CAMELSRT_SESSION]=TRUE;
/* prepare the key data */
camelsrt_call_key.SessionIdKey = p_camelsrt_info->tcap_session_id;
/* look up the request */
#ifdef DEBUG_CAMELSRT
dbg(10,"\n Session begin #%u\n", pinfo->num);
dbg(11,"Search key %lu ",camelsrt_call_key.SessionIdKey);
#endif
p_camelsrt_call = (struct camelsrt_call_t *)wmem_map_lookup(srt_calls, &camelsrt_call_key);
if (p_camelsrt_call) {
/* We have seen this request before -> do nothing */
#ifdef DEBUG_CAMELSRT
dbg(22,"Already seen ");
#endif
} else { /* p_camelsrt_call has not been found */
#ifdef DEBUG_CAMELSRT
dbg(10,"New key %lu ",camelsrt_call_key.SessionIdKey);
#endif
p_camelsrt_call = new_camelsrt_call(&camelsrt_call_key);
p_camelsrt_call->tcap_context=(struct tcaphash_context_t *)p_camelsrt_info->tcap_context;
update_camelsrt_call(p_camelsrt_call, pinfo,CAMELSRT_SESSION);
#ifdef DEBUG_CAMELSRT
dbg(11,"Update Callback ");
#endif
p_camelsrt_call->tcap_context->callback=camelsrt_tcap_matching;
}
}
/*
* Register the request, and try to find the response
*
*/
static void
camelsrt_request_call_matching(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree,
struct camelsrt_info_t *p_camelsrt_info,
guint srt_type )
{
struct camelsrt_call_t *p_camelsrt_call;
struct camelsrt_call_info_key_t camelsrt_call_key;
proto_item *ti, *hidden_item;
#ifdef DEBUG_CAMELSRT
dbg(10,"\n %s #%u\n", val_to_str_const(srt_type, camelSRTtype_naming, "Unk"),pinfo->num);
#endif
/* look only for matching request, if matching conversation is available. */
camelsrt_call_key.SessionIdKey = p_camelsrt_info->tcap_session_id;
#ifdef DEBUG_CAMELSRT
dbg(11,"Search key %lu ", camelsrt_call_key.SessionIdKey);
#endif
p_camelsrt_call = find_camelsrt_call(&camelsrt_call_key);
if(p_camelsrt_call) {
#ifdef DEBUG_CAMELSRT
dbg(12,"Found ");
#endif
if (gcamel_DisplaySRT)
proto_tree_add_uint(tree, hf_camelsrt_SessionId, tvb, 0,0, p_camelsrt_call->session_id);
/* Hmm.. As there are several slices ApplyChargingReport/ApplyCharging
* we will prepare the measurement for 3 slices with 3 categories */
if (srt_type==CAMELSRT_VOICE_ACR1) {
if (p_camelsrt_call->category[CAMELSRT_VOICE_ACR1].req_num == 0) {
srt_type=CAMELSRT_VOICE_ACR1;
} else if ( (p_camelsrt_call->category[CAMELSRT_VOICE_ACR2].req_num == 0)
&& (p_camelsrt_call->category[CAMELSRT_VOICE_ACR1].rsp_num != 0)
&& (p_camelsrt_call->category[CAMELSRT_VOICE_ACR1].rsp_num < pinfo->num) ) {
srt_type=CAMELSRT_VOICE_ACR2;
} else if ( (p_camelsrt_call->category[CAMELSRT_VOICE_ACR3].req_num == 0)
&& (p_camelsrt_call->category[CAMELSRT_VOICE_ACR2].rsp_num != 0)
&& (p_camelsrt_call->category[CAMELSRT_VOICE_ACR2].rsp_num < pinfo->num) ) {
srt_type=CAMELSRT_VOICE_ACR3;
} else if (p_camelsrt_call->category[CAMELSRT_VOICE_ACR1].rsp_num != 0
&& p_camelsrt_call->category[CAMELSRT_VOICE_ACR1].rsp_num > pinfo->num) {
srt_type=CAMELSRT_VOICE_ACR1;
} else if ( p_camelsrt_call->category[CAMELSRT_VOICE_ACR2].rsp_num != 0
&& p_camelsrt_call->category[CAMELSRT_VOICE_ACR2].rsp_num > pinfo->num) {
srt_type=CAMELSRT_VOICE_ACR2;
} else if (p_camelsrt_call->category[CAMELSRT_VOICE_ACR1].rsp_num != 0
&& p_camelsrt_call->category[CAMELSRT_VOICE_ACR3].rsp_num > pinfo->num) {
srt_type=CAMELSRT_VOICE_ACR3;
}
#ifdef DEBUG_CAMELSRT
dbg(70,"Request ACR %u ",srt_type);
dbg(70,"ACR1 %u %u",p_camelsrt_call->category[CAMELSRT_VOICE_ACR1].req_num, p_camelsrt_call->category[CAMELSRT_VOICE_ACR1].rsp_num);
dbg(70,"ACR2 %u %u",p_camelsrt_call->category[CAMELSRT_VOICE_ACR2].req_num, p_camelsrt_call->category[CAMELSRT_VOICE_ACR2].rsp_num);
dbg(70,"ACR3 %u %u",p_camelsrt_call->category[CAMELSRT_VOICE_ACR3].req_num, p_camelsrt_call->category[CAMELSRT_VOICE_ACR3].rsp_num);
#endif
} /* not ACR */
p_camelsrt_info->bool_msginfo[srt_type]=TRUE;
if (p_camelsrt_call->category[srt_type].req_num == 0) {
/* We have not yet seen a request to that call, so this must be the first request
remember its frame number. */
#ifdef DEBUG_CAMELSRT
dbg(5,"Set reqlink #%u ", pinfo->num);
#endif
update_camelsrt_call(p_camelsrt_call, pinfo, srt_type);
} else {
/* We have seen a request to this call - but was it *this* request? */
if (p_camelsrt_call->category[srt_type].req_num != pinfo->num) {
if (srt_type!=CAMELSRT_VOICE_DISC) {
/* No, so it's a duplicate request. Mark it as such. */
#ifdef DEBUG_CAMELSRT
dbg(21,"Display_duplicate with req %d ", p_camelsrt_call->category[srt_type].req_num);
#endif
p_camelsrt_info->msginfo[srt_type].is_duplicate = TRUE;
if (gcamel_DisplaySRT){
hidden_item = proto_tree_add_uint(tree, hf_camelsrt_Duplicate, tvb, 0,0, 77);
proto_item_set_hidden(hidden_item);
}
} else {
/* Ignore duplicate frame */
if (pinfo->num > p_camelsrt_call->category[srt_type].req_num) {
p_camelsrt_call->category[srt_type].req_num = pinfo->num;
#ifdef DEBUG_CAMELSRT
dbg(5,"DISC Set reqlink #%u ", pinfo->num);
#endif
update_camelsrt_call(p_camelsrt_call, pinfo, srt_type);
} /* greater frame */
} /* DISC */
} /* req_num already seen */
} /* req_num != 0 */
/* add link to response frame, if available */
if ( gcamel_DisplaySRT &&
(p_camelsrt_call->category[srt_type].rsp_num != 0) &&
(p_camelsrt_call->category[srt_type].req_num != 0) &&
(p_camelsrt_call->category[srt_type].req_num == pinfo->num) ) {
#ifdef DEBUG_CAMELSRT
dbg(20,"Display_framersplink %d ",p_camelsrt_call->category[srt_type].rsp_num);
#endif
ti = proto_tree_add_uint_format(tree, hf_camelsrt_RequestFrame, tvb, 0, 0,
p_camelsrt_call->category[srt_type].rsp_num,
"Linked response %s in frame %u",
val_to_str_const(srt_type, camelSRTtype_naming, "Unk"),
p_camelsrt_call->category[srt_type].rsp_num);
proto_item_set_generated(ti);
} /* frame valid */
} /* call reference */
}
/*
* Display the delta time between two messages in a field corresponding
* to the category (hf_camelsrt_DeltaTimexx).
*/
static void
camelsrt_display_DeltaTime(proto_tree *tree, tvbuff_t *tvb, nstime_t *value_ptr,
guint category)
{
proto_item *ti;
if ( gcamel_DisplaySRT ) {
switch(category) {
case CAMELSRT_VOICE_INITIALDP:
ti = proto_tree_add_time(tree, hf_camelsrt_DeltaTime31, tvb, 0, 0, value_ptr);
proto_item_set_generated(ti);
break;
case CAMELSRT_VOICE_ACR1:
case CAMELSRT_VOICE_ACR2:
case CAMELSRT_VOICE_ACR3:
ti = proto_tree_add_time(tree, hf_camelsrt_DeltaTime22, tvb, 0, 0, value_ptr);
proto_item_set_generated(ti);
break;
case CAMELSRT_VOICE_DISC:
ti = proto_tree_add_time(tree, hf_camelsrt_DeltaTime35, tvb, 0, 0, value_ptr);
proto_item_set_generated(ti);
break;
case CAMELSRT_GPRS_INITIALDP:
ti = proto_tree_add_time(tree, hf_camelsrt_DeltaTime75, tvb, 0, 0, value_ptr);
proto_item_set_generated(ti);
break;
case CAMELSRT_GPRS_REPORT:
ti = proto_tree_add_time(tree, hf_camelsrt_DeltaTime80, tvb, 0, 0, value_ptr);
proto_item_set_generated(ti);
break;
case CAMELSRT_SMS_INITIALDP:
ti = proto_tree_add_time(tree, hf_camelsrt_DeltaTime65, tvb, 0, 0, value_ptr);
proto_item_set_generated(ti);
break;
default:
break;
}
}
}
/*
* Check if the received message is a response to a previous request
* registered is the camel session context.
*/
static void
camelsrt_report_call_matching(tvbuff_t *tvb, packet_info *pinfo,
proto_tree *tree,
struct camelsrt_info_t *p_camelsrt_info,
guint srt_type)
{
struct camelsrt_call_t *p_camelsrt_call;
struct camelsrt_call_info_key_t camelsrt_call_key;
nstime_t delta;
proto_item *ti, *hidden_item;
#ifdef DEBUG_CAMELSRT
dbg(10,"\n %s #%u\n", val_to_str_const(srt_type, camelSRTtype_naming, "Unk"),pinfo->num);
#endif
camelsrt_call_key.SessionIdKey = p_camelsrt_info->tcap_session_id;
/* look only for matching request, if matching conversation is available. */
#ifdef DEBUG_CAMELSRT
dbg(11,"Search key %lu ",camelsrt_call_key.SessionIdKey);
#endif
p_camelsrt_call = find_camelsrt_call(&camelsrt_call_key);
if(p_camelsrt_call) {
#ifdef DEBUG_CAMELSRT
dbg(12,"Found, req=%d ",p_camelsrt_call->category[srt_type].req_num);
#endif
if ( gcamel_DisplaySRT )
proto_tree_add_uint(tree, hf_camelsrt_SessionId, tvb, 0,0, p_camelsrt_call->session_id);
if (srt_type==CAMELSRT_VOICE_ACR1) {
if (p_camelsrt_call->category[CAMELSRT_VOICE_ACR3].req_num != 0
&& p_camelsrt_call->category[CAMELSRT_VOICE_ACR3].req_num < pinfo->num) {
srt_type=CAMELSRT_VOICE_ACR1;
} else if ( p_camelsrt_call->category[CAMELSRT_VOICE_ACR2].req_num != 0
&& p_camelsrt_call->category[CAMELSRT_VOICE_ACR2].req_num < pinfo->num) {
srt_type=CAMELSRT_VOICE_ACR2;
} else if (p_camelsrt_call->category[CAMELSRT_VOICE_ACR1].req_num != 0
&& p_camelsrt_call->category[CAMELSRT_VOICE_ACR1].req_num < pinfo->num) {
srt_type=CAMELSRT_VOICE_ACR1;
}
#ifdef DEBUG_CAMELSRT
dbg(70,"Report ACR %u ",srt_type);
#endif
} /* not ACR */
p_camelsrt_info->bool_msginfo[srt_type]=TRUE;
if (p_camelsrt_call->category[srt_type].rsp_num == 0) {
if ( (p_camelsrt_call->category[srt_type].req_num != 0)
&& (pinfo->num > p_camelsrt_call->category[srt_type].req_num) ){
/* We have not yet seen a response to that call, so this must be the first response;
remember its frame number only if response comes after request */
#ifdef DEBUG_CAMELSRT
dbg(14,"Set reslink #%d req %u ",pinfo->num, p_camelsrt_call->category[srt_type].req_num);
#endif
p_camelsrt_call->category[srt_type].rsp_num = pinfo->num;
} else {
#ifdef DEBUG_CAMELSRT
dbg(2,"badreslink #%u req %u ",pinfo->num, p_camelsrt_call->category[srt_type].req_num);
#endif
} /* req_num != 0 */
} else { /* rsp_num != 0 */
/* We have seen a response to this call - but was it *this* response? */
if (p_camelsrt_call->category[srt_type].rsp_num != pinfo->num) {
/* No, so it's a duplicate response. Mark it as such. */
#ifdef DEBUG_CAMELSRT
dbg(21,"Display_duplicate rsp=%d ", p_camelsrt_call->category[srt_type].rsp_num);
#endif
p_camelsrt_info->msginfo[srt_type].is_duplicate = TRUE;
if ( gcamel_DisplaySRT ){
hidden_item = proto_tree_add_uint(tree, hf_camelsrt_Duplicate, tvb, 0,0, 77);
proto_item_set_hidden(hidden_item);
}
}
} /* rsp_num != 0 */
if ( (p_camelsrt_call->category[srt_type].req_num != 0) &&
(p_camelsrt_call->category[srt_type].rsp_num != 0) &&
(p_camelsrt_call->category[srt_type].rsp_num == pinfo->num) ) {
p_camelsrt_call->category[srt_type].responded = TRUE;
p_camelsrt_info->msginfo[srt_type].request_available = TRUE;
#ifdef DEBUG_CAMELSRT
dbg(20,"Display_frameReqlink %d ",p_camelsrt_call->category[srt_type].req_num);
#endif
/* Indicate the frame to which this is a reply. */
if ( gcamel_DisplaySRT ) {
ti = proto_tree_add_uint_format(tree, hf_camelsrt_ResponseFrame, tvb, 0, 0,
p_camelsrt_call->category[srt_type].req_num,
"Linked request %s in frame %u",
val_to_str_const(srt_type, camelSRTtype_naming, "Unk"),
p_camelsrt_call->category[srt_type].req_num);
proto_item_set_generated(ti);
}
/* Calculate Service Response Time */
nstime_delta(&delta, &pinfo->abs_ts, &p_camelsrt_call->category[srt_type].req_time);
p_camelsrt_info->msginfo[srt_type].is_delta_time = TRUE;
p_camelsrt_info->msginfo[srt_type].delta_time = delta; /* give it to tap */
p_camelsrt_info->msginfo[srt_type].req_time = p_camelsrt_call->category[srt_type].req_time;
/* display Service Response Time and make it filterable */
camelsrt_display_DeltaTime(tree, tvb, &delta, srt_type);
} /*req_num != 0 && not duplicate */
} /* call reference found */
}
/*
* Service Response Time analyze, called just after the camel dissector
* According to the camel operation, we
* - open/close a context for the camel session
* - look for a request, or look for the corresponding response
*/
void
camelsrt_call_matching(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
struct camelsrt_info_t *p_camelsrt_info)
{
#ifdef DEBUG_CAMELSRT
dbg(10,"tcap_session #%d ", p_camelsrt_info->tcap_session_id);
#endif
switch (p_camelsrt_info->opcode) {
case 0: /*InitialDP*/
camelsrt_begin_call_matching(pinfo, p_camelsrt_info);
camelsrt_request_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_VOICE_INITIALDP);
break;
case 60: /*InitialDPSMS*/
camelsrt_begin_call_matching(pinfo, p_camelsrt_info);
camelsrt_request_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_SMS_INITIALDP);
break;
case 78: /*InitialDPGPRS*/
camelsrt_begin_call_matching(pinfo, p_camelsrt_info);
camelsrt_request_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_GPRS_INITIALDP);
break;
case 23: /*RequestReportBCSMEvent*/
break;
case 63: /*RequestReportSMSEvent*/
break;
case 81: /*RequestReportGPRSEvent*/
break;
case 24: /*EventReportBCSMEvent*/
camelsrt_request_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_VOICE_DISC );
break;
case 64: /*EventReportSMS*/
/* Session has been explicity closed without TC_END */
camelsrt_close_call_matching(pinfo, p_camelsrt_info);
tcapsrt_close((struct tcaphash_context_t *)p_camelsrt_info->tcap_context, pinfo);
break;
case 80: /*EventReportGPRS*/
camelsrt_begin_call_matching(pinfo, p_camelsrt_info);
camelsrt_request_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_GPRS_REPORT);
break;
case 35: /*ApplyCharging*/
camelsrt_report_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_VOICE_ACR1 );
break;
case 71: /*ApplyChargingGPRS*/
break;
case 36: /*ApplyChargingReport*/
camelsrt_request_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_VOICE_ACR1 );
break;
case 72: /*ApplyChargingReportGPRS*/
break;
case 31: /*Continue*/
camelsrt_report_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_VOICE_INITIALDP);
break;
case 65: /*ContinueSMS*/
camelsrt_report_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_SMS_INITIALDP);
break;
case 75: /*ContinueGPRS*/
camelsrt_report_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_GPRS_INITIALDP);
camelsrt_report_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_GPRS_REPORT);
break;
case 22: /*ReleaseCall*/
camelsrt_report_call_matching(tvb, pinfo, tree, p_camelsrt_info,
CAMELSRT_VOICE_DISC);
/* Session has been closed by Network */
camelsrt_close_call_matching(pinfo, p_camelsrt_info);
break;
case 66: /*ReleaseSMS*/
/* Session has been closed by Network */
camelsrt_close_call_matching(pinfo, p_camelsrt_info);
tcapsrt_close((struct tcaphash_context_t *)p_camelsrt_info->tcap_context,pinfo);
break;
case 79: /*ReleaseGPRS*/
/* Session has been closed by Network */
camelsrt_close_call_matching(pinfo, p_camelsrt_info);
break;
} /* switch opcode */
}
/*
* Initialize the Message Info used by the main dissector
* Data are linked to a TCAP transaction
*/
struct camelsrt_info_t *
camelsrt_razinfo(void)
{
struct camelsrt_info_t *p_camelsrt_info ;
/* Global buffer for packet extraction */
camelsrt_global_current++;
if(camelsrt_global_current==MAX_CAMEL_INSTANCE){
camelsrt_global_current=0;
}
p_camelsrt_info=&camelsrt_global_info[camelsrt_global_current];
memset(p_camelsrt_info,0,sizeof(struct camelsrt_info_t));
p_camelsrt_info->opcode=255;
return p_camelsrt_info;
}
static guint8 camel_pdu_type = 0;
static guint8 camel_pdu_size = 0;
static int
dissect_camel_camelPDU(gboolean implicit_tag _U_, tvbuff_t *tvb, int offset, asn1_ctx_t *actx _U_,proto_tree *tree,
int hf_index, struct tcap_private_t * p_private_tcap) {
opcode = 0;
if (p_private_tcap != NULL){
gp_camelsrt_info->tcap_context=p_private_tcap->context;
if (p_private_tcap->context)
gp_camelsrt_info->tcap_session_id = ( (struct tcaphash_context_t *) (p_private_tcap->context))->session_id;
}
camel_pdu_type = tvb_get_guint8(tvb, offset)&0x0f;
/* Get the length and add 2 */
camel_pdu_size = tvb_get_guint8(tvb, offset+1)+2;
/* Populate the info column with PDU type*/
col_add_str(actx->pinfo->cinfo, COL_INFO, val_to_str(camel_pdu_type, camel_Component_vals, "Unknown Camel (%u)"));
col_append_str(actx->pinfo->cinfo, COL_INFO, " ");
is_ExtensionField =FALSE;
offset = dissect_camel_ROS(TRUE, tvb, offset, actx, tree, hf_index);
return offset;
}
static int
dissect_camel_all(int version, const char* col_protocol, const char* suffix,
tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data)
{
proto_item *item;
proto_tree *tree = NULL, *stat_tree = NULL;
struct tcap_private_t * p_private_tcap = (struct tcap_private_t*)data;
asn1_ctx_t asn1_ctx;
asn1_ctx_init(&asn1_ctx, ASN1_ENC_BER, TRUE, pinfo);
col_set_str(pinfo->cinfo, COL_PROTOCOL, col_protocol);
camel_ver = version;
/* create display subtree for the protocol */
if(parent_tree){
item = proto_tree_add_item(parent_tree, proto_camel, tvb, 0, -1, ENC_NA);
tree = proto_item_add_subtree(item, ett_camel);
proto_item_append_text(item, "%s", suffix);
}
/* camelsrt reset counter, and initialise global pointer
to store service response time related data */
gp_camelsrt_info=camelsrt_razinfo();
dissect_camel_camelPDU(FALSE, tvb, 0, &asn1_ctx , tree, -1, p_private_tcap);
/* If a Tcap context is associated to this transaction */
if (gp_camelsrt_info->tcap_context ) {
if (gcamel_DisplaySRT && tree) {
stat_tree = proto_tree_add_subtree(tree, tvb, 0, 0, ett_camel_stat, NULL, "Stat");
}
camelsrt_call_matching(tvb, pinfo, stat_tree, gp_camelsrt_info);
tap_queue_packet(camel_tap, pinfo, gp_camelsrt_info);
}
return tvb_captured_length(tvb);
}
static int
dissect_camel_v1(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data)
{
return dissect_camel_all(1, "Camel-v1", "-V1", tvb, pinfo, parent_tree, data);
}
static int
dissect_camel_v2(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data)
{
return dissect_camel_all(2, "Camel-v2", "-V2", tvb, pinfo, parent_tree, data);
}
static int
dissect_camel_v3(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data)
{
return dissect_camel_all(3, "Camel-v3", "-V3", tvb, pinfo, parent_tree, data);
}
static int
dissect_camel_v4(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data)
{
return dissect_camel_all(4, "Camel-v4", "-V4", tvb, pinfo, parent_tree, data);
}
static int
dissect_camel(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void* data)
{
return dissect_camel_all(4, "Camel", "", tvb, pinfo, parent_tree, data);
}
/* TAP STAT INFO */
typedef enum
{
MESSAGE_TYPE_COLUMN = 0,
COUNT_COLUMN
} camel_stat_columns;
static stat_tap_table_item camel_stat_fields[] = {{TABLE_ITEM_STRING, TAP_ALIGN_LEFT, "Message Type or Reason", "%-25s"}, {TABLE_ITEM_UINT, TAP_ALIGN_RIGHT, "Count", "%d"}};
static void camel_stat_init(stat_tap_table_ui* new_stat)
{
const char *table_name = "CAMEL Message Counters";
int num_fields = sizeof(camel_stat_fields)/sizeof(stat_tap_table_item);
stat_tap_table *table;
int i;
stat_tap_table_item_type items[sizeof(camel_stat_fields)/sizeof(stat_tap_table_item)];
table = stat_tap_find_table(new_stat, table_name);
if (table) {
if (new_stat->stat_tap_reset_table_cb) {
new_stat->stat_tap_reset_table_cb(table);
}
return;
}
table = stat_tap_init_table(table_name, num_fields, 0, NULL);
stat_tap_add_table(new_stat, table);
items[MESSAGE_TYPE_COLUMN].type = TABLE_ITEM_STRING;
items[COUNT_COLUMN].type = TABLE_ITEM_UINT;
items[COUNT_COLUMN].value.uint_value = 0;
/* Add a row for each value type */
for (i = 0; i < camel_MAX_NUM_OPR_CODES; i++)
{
const char *ocs = try_val_to_str(i, camel_opr_code_strings);
char *col_str;
if (ocs) {
col_str = ws_strdup_printf("Request %s", ocs);
} else {
col_str = ws_strdup_printf("Unknown op code %d", i);
}
items[MESSAGE_TYPE_COLUMN].value.string_value = col_str;
stat_tap_init_table_row(table, i, num_fields, items);
}
}
static tap_packet_status
camel_stat_packet(void *tapdata, packet_info *pinfo _U_, epan_dissect_t *edt _U_, const void *csi_ptr)
{
stat_data_t* stat_data = (stat_data_t*)tapdata;
const struct camelsrt_info_t *csi = (const struct camelsrt_info_t *) csi_ptr;
stat_tap_table* table;
stat_tap_table_item_type* msg_data;
table = g_array_index(stat_data->stat_tap_data->tables, stat_tap_table*, 0);
if (csi->opcode >= table->num_elements)
return TAP_PACKET_DONT_REDRAW;
msg_data = stat_tap_get_field_data(table, csi->opcode, COUNT_COLUMN);
msg_data->value.uint_value++;
stat_tap_set_field_data(table, csi->opcode, COUNT_COLUMN, msg_data);
return TAP_PACKET_REDRAW;
}
static void
camel_stat_reset(stat_tap_table* table)
{
guint element;
stat_tap_table_item_type* item_data;
for (element = 0; element < table->num_elements; element++)
{
item_data = stat_tap_get_field_data(table, element, COUNT_COLUMN);
item_data->value.uint_value = 0;
stat_tap_set_field_data(table, element, COUNT_COLUMN, item_data);
}
}
static void
camel_stat_free_table_item(stat_tap_table* table _U_, guint row _U_, guint column, stat_tap_table_item_type* field_data)
{
if (column != MESSAGE_TYPE_COLUMN) return;
g_free((char*)field_data->value.string_value);
}
/*--- proto_reg_handoff_camel ---------------------------------------*/
static void range_delete_callback(guint32 ssn, gpointer ptr _U_)
{
if (ssn) {
delete_itu_tcap_subdissector(ssn, camel_handle);
}
}
static void range_add_callback(guint32 ssn, gpointer ptr _U_)
{
if (ssn) {
add_itu_tcap_subdissector(ssn, camel_handle);
}
}
void proto_reg_handoff_camel(void) {
static gboolean camel_prefs_initialized = FALSE;
static range_t *ssn_range;
if (!camel_prefs_initialized) {
camel_prefs_initialized = TRUE;
register_ber_oid_dissector_handle("0.4.0.0.1.0.50.0",camel_v1_handle, proto_camel, "CAP-v1-gsmSSF-to-gsmSCF-AC" );
register_ber_oid_dissector_handle("0.4.0.0.1.0.50.1",camel_v2_handle, proto_camel, "CAP-v2-gsmSSF-to-gsmSCF-AC" );
register_ber_oid_dissector_handle("0.4.0.0.1.0.51.1",camel_v2_handle, proto_camel, "CAP-v2-assist-gsmSSF-to-gsmSCF-AC" );
register_ber_oid_dissector_handle("0.4.0.0.1.0.52.1",camel_v2_handle, proto_camel, "CAP-v2-gsmSRF-to-gsmSCF-AC" );
/* CAMEL Phase 3 Application Context Names */
register_ber_oid_dissector_handle("0.4.0.0.1.21.3.4", camel_v3_handle, proto_camel, "capssf-scfGenericAC");
register_ber_oid_dissector_handle("0.4.0.0.1.21.3.6", camel_v3_handle, proto_camel, "capssf-scfAssistHandoffAC");
register_ber_oid_dissector_handle("0.4.0.0.1.20.3.14", camel_v3_handle, proto_camel, "gsmSRF-gsmSCF-ac");
register_ber_oid_dissector_handle("0.4.0.0.1.21.3.50", camel_v3_handle, proto_camel, "cap3-gprssf-scfAC");
register_ber_oid_dissector_handle("0.4.0.0.1.21.3.51", camel_v3_handle, proto_camel, "cap3-gsmscf-gprsssfAC");
register_ber_oid_dissector_handle("0.4.0.0.1.21.3.61", camel_v3_handle, proto_camel, "cap3-sms-AC");
/* CAMEL Phase 4 Application Context Names */
register_ber_oid_dissector_handle("0.4.0.0.1.23.3.4", camel_v4_handle, proto_camel, "capssf-scfGenericAC");
register_ber_oid_dissector_handle("0.4.0.0.1.23.3.6", camel_v4_handle, proto_camel, "capssf-scfAssistHandoffAC");
register_ber_oid_dissector_handle("0.4.0.0.1.23.3.8", camel_v4_handle, proto_camel, "capscf-ssfGenericAC");
register_ber_oid_dissector_handle("0.4.0.0.1.22.3.14", camel_v4_handle, proto_camel, "gsmSRF-gsmSCF-ac");
register_ber_oid_dissector_handle("0.4.0.0.1.23.3.61", camel_v4_handle, proto_camel, "cap4-sms-AC");
#include "packet-camel-dis-tab.c"
} else {
range_foreach(ssn_range, range_delete_callback, NULL);
wmem_free(wmem_epan_scope(), ssn_range);
}
ssn_range = range_copy(wmem_epan_scope(), global_ssn_range);
range_foreach(ssn_range, range_add_callback, NULL);
}
void proto_register_camel(void) {
module_t *camel_module;
/* List of fields */
static hf_register_info hf[] = {
{ &hf_camel_extension_code_local,
{ "local", "camel.extension_code_local",
FT_INT32, BASE_DEC, NULL, 0,
"Extension local code", HFILL }},
{ &hf_camel_error_code_local,
{ "local", "camel.error_code_local",
FT_INT32, BASE_DEC, VALS(camel_err_code_string_vals), 0,
"ERROR code", HFILL }},
{ &hf_camel_cause_indicator, /* Currently not enabled */
{ "Cause indicator", "camel.cause_indicator",
FT_UINT8, BASE_DEC|BASE_EXT_STRING, &q850_cause_code_vals_ext, 0x7f,
NULL, HFILL }},
{ &hf_digit,
{ "Digit Value", "camel.digit_value",
FT_UINT8, BASE_DEC, VALS(digit_value), 0, NULL, HFILL }},
{ &hf_camel_PDPTypeNumber_etsi,
{ "ETSI defined PDP Type Value", "camel.PDPTypeNumber_etsi",
FT_UINT8, BASE_HEX, VALS(gsm_map_etsi_defined_pdp_vals), 0,
NULL, HFILL }},
{ &hf_camel_PDPTypeNumber_ietf,
{ "IETF defined PDP Type Value", "camel.PDPTypeNumber_ietf",
FT_UINT8, BASE_HEX, VALS(gsm_map_ietf_defined_pdp_vals), 0,
NULL, HFILL }},
{ &hf_camel_PDPAddress_IPv4,
{ "PDPAddress IPv4", "camel.PDPAddress_IPv4",
FT_IPv4, BASE_NONE, NULL, 0,
"IPAddress IPv4", HFILL }},
{ &hf_camel_PDPAddress_IPv6,
{ "PDPAddress IPv6", "camel.PDPAddress_IPv6",
FT_IPv6, BASE_NONE, NULL, 0,
"IPAddress IPv6", HFILL }},
{ &hf_camel_cellGlobalIdOrServiceAreaIdFixedLength,
{ "CellGlobalIdOrServiceAreaIdFixedLength", "camel.CellGlobalIdOrServiceAreaIdFixedLength",
FT_BYTES, BASE_NONE, NULL, 0,
"LocationInformationGPRS/CellGlobalIdOrServiceAreaIdOrLAI", HFILL }},
{ &hf_camel_RP_Cause,
{ "RP Cause", "camel.RP_Cause",
FT_UINT8, BASE_DEC, VALS(camel_RP_Cause_values), 0x7F,
"RP Cause Value", HFILL }},
{ &hf_camel_CAMEL_AChBillingChargingCharacteristics,
{ "CAMEL-AChBillingChargingCharacteristics", "camel.CAMEL_AChBillingChargingCharacteristics",
FT_UINT32, BASE_DEC, VALS(camel_CAMEL_AChBillingChargingCharacteristics_vals), 0,
NULL, HFILL }},
{ &hf_camel_CAMEL_FCIBillingChargingCharacteristics,
{ "CAMEL-FCIBillingChargingCharacteristics", "camel.CAMEL_FCIBillingChargingCharacteristics",
FT_UINT32, BASE_DEC, VALS(camel_CAMEL_FCIBillingChargingCharacteristics_vals), 0,
NULL, HFILL }},
{ &hf_camel_CAMEL_FCIGPRSBillingChargingCharacteristics,
{ "CAMEL-FCIGPRSBillingChargingCharacteristics", "camel.CAMEL_FCIGPRSBillingChargingCharacteristics",
FT_UINT32, BASE_DEC, NULL, 0,
NULL, HFILL }},
{ &hf_camel_CAMEL_FCISMSBillingChargingCharacteristics,
{ "CAMEL-FCISMSBillingChargingCharacteristics", "camel.CAMEL_FCISMSBillingChargingCharacteristics",
FT_UINT32, BASE_DEC, VALS(camel_CAMEL_FCISMSBillingChargingCharacteristics_vals), 0,
NULL, HFILL }},
{ &hf_camel_CAMEL_SCIBillingChargingCharacteristics,
{ "CAMEL-SCIBillingChargingCharacteristics", "camel.CAMEL_SCIBillingChargingCharacteristics",
FT_UINT32, BASE_DEC, VALS(camel_CAMEL_SCIBillingChargingCharacteristics_vals), 0,
NULL, HFILL }},
{ &hf_camel_CAMEL_SCIGPRSBillingChargingCharacteristics,
{ "CAMEL-SCIGPRSBillingChargingCharacteristics", "camel.CAMEL_SCIGPRSBillingChargingCharacteristics",
FT_UINT32, BASE_DEC, NULL, 0,
"CAMEL-FSCIGPRSBillingChargingCharacteristics", HFILL }},
{ &hf_camel_CAMEL_CallResult,
{ "CAMEL-CAMEL_CallResult", "camel.CAMEL_CallResult",
FT_UINT32, BASE_DEC, VALS(camel_CAMEL_CallResult_vals), 0,
"CAMEL-CallResult", HFILL }},
/* Camel Service Response Time */
{ &hf_camelsrt_SessionId,
{ "Session Id",
"camel.srt.session_id",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_camelsrt_RequestNumber,
{ "Request Number",
"camel.srt.request_number",
FT_UINT64, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_camelsrt_Duplicate,
{ "Request Duplicate",
"camel.srt.duplicate",
FT_UINT32, BASE_DEC, NULL, 0x0,
NULL, HFILL }
},
{ &hf_camelsrt_RequestFrame,
{ "Requested Frame",
"camel.srt.reqframe",
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
"SRT Request Frame", HFILL }
},
{ &hf_camelsrt_ResponseFrame,
{ "Response Frame",
"camel.srt.rspframe",
FT_FRAMENUM, BASE_NONE, NULL, 0x0,
"SRT Response Frame", HFILL }
},
{ &hf_camelsrt_DeltaTime,
{ "Service Response Time",
"camel.srt.deltatime",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,
"DeltaTime between Request and Response", HFILL }
},
{ &hf_camelsrt_SessionTime,
{ "Session duration",
"camel.srt.sessiontime",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,
"Duration of the TCAP session", HFILL }
},
{ &hf_camelsrt_DeltaTime31,
{ "Service Response Time",
"camel.srt.deltatime31",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,
"DeltaTime between InitialDP and Continue", HFILL }
},
{ &hf_camelsrt_DeltaTime65,
{ "Service Response Time",
"camel.srt.deltatime65",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,
"DeltaTime between InitialDPSMS and ContinueSMS", HFILL }
},
{ &hf_camelsrt_DeltaTime75,
{ "Service Response Time",
"camel.srt.deltatime75",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,
"DeltaTime between InitialDPGPRS and ContinueGPRS", HFILL }
},
{ &hf_camelsrt_DeltaTime35,
{ "Service Response Time",
"camel.srt.deltatime35",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,
"DeltaTime between ApplyChargingReport and ApplyCharging", HFILL }
},
{ &hf_camelsrt_DeltaTime22,
{ "Service Response Time",
"camel.srt.deltatime22",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,
"DeltaTime between EventReport(Disconnect) and Release Call", HFILL }
},
{ &hf_camelsrt_DeltaTime80,
{ "Service Response Time",
"camel.srt.deltatime80",
FT_RELATIVE_TIME, BASE_NONE, NULL, 0x0,
"DeltaTime between EventReportGPRS and ContinueGPRS", HFILL }
},
#ifdef REMOVED
#endif
#include "packet-camel-hfarr.c"
};
/* List of subtrees */
static gint *ett[] = {
&ett_camel,
&ett_camelisup_parameter,
&ett_camel_AccessPointName,
&ett_camel_pdptypenumber,
&ett_camel_cause,
&ett_camel_RPcause,
&ett_camel_stat,
&ett_camel_calledpartybcdnumber,
&ett_camel_callingpartynumber,
&ett_camel_originalcalledpartyid,
&ett_camel_redirectingpartyid,
&ett_camel_locationnumber,
&ett_camel_additionalcallingpartynumber,
&ett_camel_calledAddressValue,
&ett_camel_callingAddressValue,
&ett_camel_assistingSSPIPRoutingAddress,
&ett_camel_correlationID,
&ett_camel_dTMFDigitsCompleted,
&ett_camel_dTMFDigitsTimeOut,
&ett_camel_number,
&ett_camel_digitsResponse,
#include "packet-camel-ettarr.c"
};
static ei_register_info ei[] = {
{ &ei_camel_unknown_invokeData, { "camel.unknown.invokeData", PI_MALFORMED, PI_WARN, "Unknown invokeData", EXPFILL }},
{ &ei_camel_unknown_returnResultData, { "camel.unknown.returnResultData", PI_MALFORMED, PI_WARN, "Unknown returnResultData", EXPFILL }},
{ &ei_camel_unknown_returnErrorData, { "camel.unknown.returnErrorData", PI_MALFORMED, PI_WARN, "Unknown returnResultData", EXPFILL }},
};
expert_module_t* expert_camel;
static tap_param camel_stat_params[] = {
{ PARAM_FILTER, "filter", "Filter", NULL, TRUE }
};
static stat_tap_table_ui camel_stat_table = {
REGISTER_STAT_GROUP_TELEPHONY_GSM,
"CAMEL Messages and Response Status",
PSNAME,
"camel,counter",
camel_stat_init,
camel_stat_packet,
camel_stat_reset,
camel_stat_free_table_item,
NULL,
sizeof(camel_stat_fields)/sizeof(stat_tap_table_item), camel_stat_fields,
sizeof(camel_stat_params)/sizeof(tap_param), camel_stat_params,
NULL,
0
};
/* Register protocol */
proto_camel = proto_register_protocol(PNAME, PSNAME, PFNAME);
camel_handle = register_dissector("camel", dissect_camel, proto_camel);
camel_v1_handle = register_dissector("camel-v1", dissect_camel_v1, proto_camel);
camel_v2_handle = register_dissector("camel-v2", dissect_camel_v2, proto_camel);
camel_v3_handle = register_dissector("camel-v3", dissect_camel_v3, proto_camel);
camel_v4_handle = register_dissector("camel-v4", dissect_camel_v4, proto_camel);
proto_register_field_array(proto_camel, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_camel = expert_register_protocol(proto_camel);
expert_register_field_array(expert_camel, ei, array_length(ei));
rose_ctx_init(&camel_rose_ctx);
/* Register dissector tables */
camel_rose_ctx.arg_local_dissector_table = register_dissector_table("camel.ros.local.arg",
"CAMEL Operation Argument (local opcode)", proto_camel,
FT_UINT32, BASE_HEX);
camel_rose_ctx.res_local_dissector_table = register_dissector_table("camel.ros.local.res",
"CAMEL Operation Result (local opcode)", proto_camel,
FT_UINT32, BASE_HEX);
camel_rose_ctx.err_local_dissector_table = register_dissector_table("camel.ros.local.err",
"CAMEL Error (local opcode)", proto_camel,
FT_UINT32, BASE_HEX);
/* Register our configuration options, particularly our SSNs */
/* Set default SSNs */
range_convert_str(wmem_epan_scope(), &global_ssn_range, "146", MAX_SSN);
camel_module = prefs_register_protocol(proto_camel, proto_reg_handoff_camel);
prefs_register_enum_preference(camel_module, "date.format", "Date Format",
"The date format: (DD/MM) or (MM/DD)",
&date_format, date_options, FALSE);
prefs_register_range_preference(camel_module, "tcap.ssn",
"TCAP SSNs",
"TCAP Subsystem numbers used for Camel",
&global_ssn_range, MAX_SSN);
prefs_register_obsolete_preference(camel_module, "srt");
prefs_register_bool_preference(camel_module, "persistentsrt",
"Persistent stats for SRT",
"Statistics for Response Time",
&gcamel_PersistentSRT);
/* Routine for statistic */
register_init_routine(&camelsrt_init_routine);
/* create new hash-table for SRT */
srt_calls = wmem_map_new_autoreset(wmem_epan_scope(), wmem_file_scope(), camelsrt_call_hash, camelsrt_call_equal);
camel_tap=register_tap(PSNAME);
register_srt_table(proto_camel, PSNAME, 1, camelstat_packet, camelstat_init, NULL);
register_stat_tap_table_ui(&camel_stat_table);
}
/*
* Editor modelines
*
* Local Variables:
* c-basic-offset: 2
* tab-width: 8
* indent-tabs-mode: nil
* End:
*
* ex: set shiftwidth=2 tabstop=8 expandtab:
* :indentSize=2:tabSize=8:noTabs=true:
*/
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