add a dissector for the nameservice resource

Signed-off-by: Klaus Kurzmann <mok@fluxnetz.de>

4 files changed, 105 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 4c7ff29..54b3c34 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,8 @@ OBJECTS:=src/packet-isi.o \
 	src/isi-ss.o \
 	src/isi-gss.o \
 	src/isi-sms.o \
-	src/isi-mtc.o
+	src/isi-mtc.o \
+	src/isi-nameservice.o
 
 all: isi.so
 
diff --git a/src/isi-nameservice.c b/src/isi-nameservice.c
new file mode 100644
index 0000000..5af9fb8
--- /dev/null
+++ b/src/isi-nameservice.c
@@ -0,0 +1,92 @@
+/* isi-nameservice.c
+ * Dissector for ISI's Name Service resource
+ * Copyright 2011, Klaus Kurzmann <mok@fluxnetz.de>
+ * 
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+
+#include <glib.h>
+#include <epan/prefs.h>
+#include <epan/packet.h>
+
+#include "packet-isi.h"
+#include "isi-nameservice.h"
+
+static const value_string isi_nameservice_id[] = {
+	{0x01, "PNS_NAME_QUERY_REQ"},
+	{0x02, "PNS_NAME_QUERY_RESP"},
+	{0x03, "PNS_NAME_ADD_IND"},
+	{0x04, "PNS_NAME_REMOVE_IND"},
+	{0x05, "PNS_NAME_ADD_REQ"},
+	{0x06, "PNS_NAME_ADD_RESP"},
+	{0x07, "PNS_NAME_REMOVE_REQ"},
+	{0x08, "PNS_NAME_REMOVE_RESP"},
+	{0x00, NULL}
+};
+
+static dissector_handle_t isi_nameservice_handle;
+static void dissect_isi_nameservice(tvbuff_t *tvb, packet_info *pinfo, proto_item *tree);
+
+static guint32 hf_isi_nameservice_cmd = -1;
+
+
+void proto_reg_handoff_isi_nameservice(void) {
+	static gboolean initialized=FALSE;
+
+	if(!initialized) {
+		isi_nameservice_handle = create_dissector_handle(dissect_isi_nameservice, proto_isi);
+		dissector_add("isi.resource", 0xdb, isi_nameservice_handle);
+	}
+}
+
+void proto_register_isi_nameservice(void) {
+	static hf_register_info hf[] = {
+		{ &hf_isi_nameservice_cmd,
+			{ "Command", "isi.nameservice.cmd", FT_UINT8, BASE_HEX, isi_nameservice_id, 0x0, "Command", HFILL }}
+	};
+
+	proto_register_field_array(proto_isi, hf, array_length(hf));
+	register_dissector("isi.nameservice", dissect_isi_nameservice, proto_isi);
+}
+
+
+static void dissect_isi_nameservice(tvbuff_t *tvb, packet_info *pinfo, proto_item *isitree) {
+	proto_item *item = NULL;
+	proto_tree *tree = NULL;
+	guint8 cmd, code;
+
+	if(isitree) {
+		item = proto_tree_add_text(isitree, tvb, 0, -1, "Payload");
+		tree = proto_item_add_subtree(item, ett_isi_msg);
+
+		proto_tree_add_item(tree, hf_isi_nameservice_cmd, tvb, 0, 1, FALSE);
+		cmd = tvb_get_guint8(tvb, 0);
+
+		switch (cmd) {
+			case 0x05: /* PNS_NAME_ADD_REQ */
+				col_set_str(pinfo->cinfo, COL_INFO, "Nameservice Add ");
+				break;
+
+			default:
+				col_set_str(pinfo->cinfo, COL_INFO, "unknown Nameservice packet");
+				expert_add_info_format(pinfo, item, PI_PROTOCOL, PI_WARN, "unsupported packet");
+				break;
+		}
+	}
+}
+
diff --git a/src/isi-nameservice.h b/src/isi-nameservice.h
new file mode 100644
index 0000000..843496d
--- /dev/null
+++ b/src/isi-nameservice.h
@@ -0,0 +1,9 @@
+
+#ifndef _ISI_NAMESERVICE_H
+#define _ISI_NAMESERVICE_H
+
+void proto_reg_handoff_isi_nameservice(void);
+void proto_register_isi_nameservice(void);
+
+#endif
+
diff --git a/src/packet-isi.c b/src/packet-isi.c
index b57549b..6a5e47c 100644
--- a/src/packet-isi.c
+++ b/src/packet-isi.c
@@ -335,6 +335,7 @@ void proto_reg_handoff_isi(void) {
 		proto_reg_handoff_isi_gss();
 		proto_reg_handoff_isi_sms();
 		proto_reg_handoff_isi_mtc();
+		proto_reg_handoff_isi_nameservice();
 
 #ifdef ISI_USB
 		heur_dissector_add("usb.bulk", dissect_usb_isi, proto_isi);
@@ -397,6 +398,7 @@ void proto_register_isi(void) {
 	proto_register_isi_gss();
 	proto_register_isi_sms();
 	proto_register_isi_mtc();
+	proto_register_isi_nameservice();
 }
 
 /* The dissector itself */