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From Michail Koreshkov: 

Added option "ANSI MAP" in Preferences menu, that ansi_map protocol dissector can parse packets with non-standart SSN.

svn path=/trunk/; revision=18358
This commit is contained in:
Anders Broman 2006-06-06 18:39:49 +00:00
parent 65aadc0d79
commit 41dc49bc3e
1 changed files with 64 additions and 20 deletions
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84
epan/dissectors/packet-ansi_map.c
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@ -110,6 +110,7 @@
#include <string.h>
#include "epan/packet.h"
#include <epan/prefs.h>
#include <epan/asn1.h>
#include <epan/tap.h>
#include <epan/emem.h>
@ -118,6 +119,15 @@
#include "packet-ansi_map.h"
#include "packet-tcap.h"
/* Preferenc settings default */
#define MAX_SSN 254
static range_t *global_ssn_range;
static range_t *ssn_range;
dissector_handle_t ansi_map_handle;
/* PROTOTYPES/FORWARDS */
static gboolean dissect_ansi_param(ASN1_SCK *asn1, proto_tree *tree);
@ -11481,7 +11491,7 @@ param_can_type(ASN1_SCK *asn1, proto_tree *tree, guint len, gchar *add_string _U
case 0: str = "Not used"; break;
case 1: str = "Serving System Option. The serving system may discontinue a call or service in progress at its option."; break;
case 2: str = "Report In Call. The serving system shall continue to provide service when a call or service is in progress and just report its incidence."; break;
case 3: str = "Discontinue. The serving system shall discontinue any call or service in progress, regardless of the MS’s qualification, profile or authentication."; break;
case 3: str = "Discontinue. The serving system shall discontinue any call or service in progress, regardless of the MS's qualification, profile or authentication."; break;
default:
if ((value >= 4) && (value <= 223)) { str = "Reserved, treat as Serving System Option"; }
else { str = "Reserved for protocol extension, treat as Serving System Option"; }
@ -13015,6 +13025,48 @@ dissect_ansi_map(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
}
}
/*--- proto_reg_handoff_ansi_map ---------------------------------------*/
static void range_delete_callback(guint32 ssn)
{
if (ssn) {
delete_ansi_tcap_subdissector(ssn , ansi_map_handle);
add_itu_tcap_subdissector(ssn , ansi_map_handle);
}
}
static void range_add_callback(guint32 ssn)
{
if (ssn) {
add_ansi_tcap_subdissector(ssn , ansi_map_handle);
}
}
void
proto_reg_handoff_ansi_map(void)
{
static int ansi_map_prefs_initialized = FALSE;
data_handle = find_dissector("data");
if(!ansi_map_prefs_initialized)
{
ansi_map_prefs_initialized = TRUE;
ansi_map_handle = create_dissector_handle(dissect_ansi_map, proto_ansi_map);
}
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);
}
/* Register the protocol with Wireshark */
void
@ -13022,6 +13074,7 @@ proto_register_ansi_map(void)
{
guint i;
gint last_offset;
module_t *ansi_map_module;
/* Setup list of header fields */
static hf_register_info hf[] =
@ -13139,26 +13192,17 @@ proto_register_ansi_map(void)
proto_register_subtree_array(ett, array_length(ett));
ansi_map_tap = register_tap("ansi_map");
range_convert_str(&global_ssn_range, "5-14", MAX_SSN);
ssn_range = range_empty();
ansi_map_module = prefs_register_protocol(proto_ansi_map, proto_reg_handoff_ansi_map);
prefs_register_range_preference(ansi_map_module, "map.ssn", "GSM MAP SSNs",
"GSM MAP SSNs to decode as ANSI MAP",
&global_ssn_range, MAX_SSN);
}
void
proto_reg_handoff_ansi_map(void)
{
dissector_handle_t ansi_map_handle;
ansi_map_handle = create_dissector_handle(dissect_ansi_map, proto_ansi_map);
add_ansi_tcap_subdissector(5, ansi_map_handle);
add_ansi_tcap_subdissector(6, ansi_map_handle);
add_ansi_tcap_subdissector(7, ansi_map_handle);
add_ansi_tcap_subdissector(8, ansi_map_handle);
add_ansi_tcap_subdissector(9 , ansi_map_handle);
add_ansi_tcap_subdissector(10 , ansi_map_handle);
add_ansi_tcap_subdissector(11 , ansi_map_handle);
add_ansi_tcap_subdissector(12 , ansi_map_handle);
add_ansi_tcap_subdissector(13 , ansi_map_handle);
add_ansi_tcap_subdissector(14 , ansi_map_handle);
data_handle = find_dissector("data");
}