PATCH
| Newsgroups | gmane.network.ethereal.devel |
|---|---|
| Message-ID | <[email protected]> |
Hi! I had one problem with decode SS7 packets, when message contains non-standard SSN (SubSystem number) in parameter "Called Party address" (SCCP layer). Our system uses SSN=238 for interaction with SMS Center. I added option "ANSI MAP" in Preferences menu, that ansi_map protocol dissector can parse packets with non-standart SSN. Best regards, Michail Koreshkov ZTE Corp. Technical support engineer __________________________________________ www.zte.ru _______________________________________________ Ethereal-dev mailing list [email protected] http://www.ethereal.com/mailman/listinfo/ethereal-dev
pakcet-ansi_map.diff
(text/plain, 3 KB)
--- ../ethereal-0.99.0/epan/dissectors/packet-ansi_map.c Mon Apr 17 18:46:42 2006
+++ ./epan/dissectors/packet-ansi_map.c Thu Jun 1 16:31:48 2006
@@ -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);
@@ -13016,10 +13026,53 @@
}
+/*--- 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 Ethereal */
void
proto_register_ansi_map(void)
{
+
+ module_t *ansi_map_module;
guint i;
gint last_offset;
@@ -13139,26 +13192,17 @@
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();
-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);
+ 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);
+}
+
- 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");
-}