1 files changed, 124 insertions, 0 deletions
diff --git a/epan/dissectors/packet-pw-common.c b/epan/dissectors/packet-pw-common.c
new file mode 100644
index 00000000..a8a855d2
--- /dev/null
+++ b/epan/dissectors/packet-pw-common.c
@@ -0,0 +1,124 @@
+/* packet-pw-common.c
+ * Common functions and objects for PWE3 dissectors.
+ * Copyright 2009, Artem Tamazov <artem.tamazov@tellabs.com>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1998 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include <wsutil/str_util.h>
+#include "packet-pw-common.h"
+
+void proto_register_pw_padding(void);
+
+static const char string_ok[] = "Ok";
+
+const value_string
+pwc_vals_cw_l_bit[] = {
+	{ 0x0,	string_ok },
+	{ 0x1,	"Attachment Circuit Fault" },
+	{ 0,	NULL }
+};
+
+
+const value_string
+pwc_vals_cw_r_bit[] = {
+	{ 0x0,	string_ok },
+	{ 0x1,	"Packet Loss State" },
+	{ 0,	NULL }
+};
+
+const value_string
+pwc_vals_cw_frag[] = {
+	{ 0x0,	"Unfragmented" },
+	{ 0x1,	"First fragment" },
+	{ 0x2,	"Last fragment" },
+	{ 0x3,	"Intermediate fragment" },
+	{ 0,	NULL }
+};
+
+
+void pwc_item_append_cw(proto_item* item, const guint32 cw, const gboolean append_text)
+{
+	if (item != NULL)
+	{
+		if (append_text)
+		{
+			proto_item_append_text(item, ", CW");
+		}
+		proto_item_append_text(item, ": 0x%.8" PRIx32, cw);
+	}
+	return;
+}
+
+
+void pwc_item_append_text_n_items(proto_item* item, const int n, const char * const item_text)
+{
+	if (item != NULL)
+	{
+		if (n >=0)
+		{
+			proto_item_append_text(item, ", %d %s%s", n, item_text, plurality(n,"","s"));
+		}
+	}
+	return;
+}
+
+
+static gint proto_pw_padding = -1;
+static gint ett_pw_common = -1;
+static int hf_padding_len = -1;
+
+static
+int dissect_pw_padding(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree, void* data _U_)
+{
+	gint size;
+	proto_item* item;
+	proto_tree* tree_p;
+	size = tvb_reported_length_remaining(tvb, 0);
+	item = proto_tree_add_item(tree, proto_pw_padding, tvb, 0, -1, ENC_NA);
+	pwc_item_append_text_n_items(item,size,"byte");
+	tree_p = proto_item_add_subtree(item, ett_pw_common);
+
+	call_data_dissector(tvb, pinfo, tree_p);
+	item = proto_tree_add_int(tree_p, hf_padding_len, tvb, 0, 0, size);
+	proto_item_set_hidden(item); /*allow filtering*/
+
+	return tvb_captured_length(tvb);
+}
+
+void proto_register_pw_padding(void)
+{
+	static hf_register_info hfpadding[] = {
+		{&hf_padding_len	,{"Length"			,"pw.padding.len"
+					,FT_INT32	,BASE_DEC	,NULL		,0
+					,NULL						,HFILL }}
+	};
+	static gint *ett_array[] = {
+		&ett_pw_common
+	};
+	proto_pw_padding = proto_register_protocol("Pseudowire Padding","PW Padding","pw.padding");
+	proto_register_field_array(proto_pw_padding, hfpadding, array_length(hfpadding));
+	proto_register_subtree_array(ett_array, array_length(ett_array));
+	register_dissector("pw_padding", dissect_pw_padding, proto_pw_padding);
+}
+
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 8
+ * tab-width: 8
+ * indent-tabs-mode: t
+ * End:
+ *
+ * vi: set shiftwidth=8 tabstop=8 noexpandtab:
+ * :indentSize=8:tabSize=8:noTabs=false:
+ */