wireshakrk: add patch to display HSL debug messages in log
diff --git a/wireshark/gsm_ipa-hsl.patch b/wireshark/gsm_ipa-hsl.patch
new file mode 100644
index 0000000..969dcdc
--- /dev/null
+++ b/wireshark/gsm_ipa-hsl.patch
@@ -0,0 +1,63 @@
+Index: wireshark/epan/dissectors/packet-gsm_ipa.c
+===================================================================
+--- wireshark.orig/epan/dissectors/packet-gsm_ipa.c
++++ wireshark/epan/dissectors/packet-gsm_ipa.c
+@@ -39,6 +39,7 @@
+
+ static int hf_ipa_data_len = -1;
+ static int hf_ipa_protocol = -1;
++static int hf_ipa_hsl_debug = -1;
+
+ static int hf_ipaccess_msgtype = -1;
+ static int hf_ipaccess_attr_tag = -1;
+@@ -70,6 +71,7 @@
+ #define AIP_SCCP 0xfd
+ #define ABISIP_IPACCESS 0xfe
+ #define ABISIP_OML 0xff
++#define HSL_DEBUG 0xdd
+
+ static const value_string ipa_protocol_vals[] = {
+ { 0x00, "RSL" },
+@@ -77,6 +79,7 @@
+ { 0xfd, "SCCP" },
+ { 0xfe, "IPA" },
+ { 0xff, "OML" },
++ { 0xdd, "HSL Debug" },
+ { 0, NULL }
+ };
+
+@@ -184,7 +187,7 @@
+
+ while ((remaining = tvb_reported_length_remaining(tvb, offset)) > 0) {
+ proto_item *ti;
+- proto_tree *ipa_tree;
++ proto_tree *ipa_tree = NULL;
+ guint16 len, msg_type;
+ tvbuff_t *next_tvb;
+
+@@ -238,6 +241,13 @@
+ /* hand this off to the standard MGCP dissector */
+ call_dissector(sub_handles[SUB_MGCP], next_tvb, pinfo, tree);
+ break;
++ case HSL_DEBUG:
++ if (tree) {
++ proto_tree_add_item(ipa_tree, hf_ipa_hsl_debug, next_tvb, 0, len, FALSE);
++ proto_tree_add_item(tree, hf_ipa_hsl_debug, next_tvb, 0, len, FALSE);
++ }
++ col_append_fstr(pinfo->cinfo, COL_INFO, "%s ", tvb_get_stringz(next_tvb, 0, NULL));
++ break;
+ default:
+ if (msg_type < ABISIP_RSL_MAX) {
+ /* hand this off to the standard A-bis RSL dissector */
+@@ -262,6 +272,11 @@
+ FT_UINT8, BASE_HEX, VALS(ipa_protocol_vals), 0x0,
+ "The IPA Sub-Protocol", HFILL}
+ },
++ {&hf_ipa_hsl_debug,
++ {"Debug Message", "ipa.hsl_debug",
++ FT_STRING, BASE_NONE, NULL, 0,
++ NULL, HFILL}
++ },
+ };
+ static hf_register_info hf_ipa[] = {
+ {&hf_ipaccess_msgtype,