Wireshark · Ethereal-dev: [Ethereal-dev] Patch for packet-gre.c

["packet steve" <packetsteve@xxxxxxxxxxx>]

Patch (diff -u) for packet-gre.c to faciltate filtering on GRE key.

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--- Orig_packet-gre.c	2004-09-23 07:28:00.924411526 -0500
+++ packet-gre.c	2004-09-23 07:27:21.253886067 -0500
@@ -47,6 +47,7 @@

static int proto_gre = -1;
static int hf_gre_proto = -1;
+static int hf_gre_key = -1;

static gint ett_gre = -1;
static gint ett_gre_flags = -1;
@@ -204,8 +205,7 @@
    }
    else {
      if (tree) {
-	proto_tree_add_text(gre_tree, tvb, offset, 4,
-			    "Key: %u", tvb_get_ntohl(tvb, offset));
+		proto_tree_add_uint(gre_tree, hf_gre_key, tvb, offset,4, 
tvb_get_ntohl(tvb,offset));
      }
      offset += 4;
    }
@@ -360,6 +360,11 @@
			{ "Protocol Type", "gre.proto", FT_UINT16, BASE_HEX, VALS(typevals), 0x0,
				"The protocol that is GRE encapsulated", HFILL }
		},
+		{ &hf_gre_key,
+			{ "GRE Key", "gre.key", FT_UINT32, BASE_HEX, NULL, 0x0,
+				"", HFILL }
+		},
+
	};
	static gint *ett[] = {
		&ett_gre,