Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 185 insertions, 0 deletions

diff --git a/plugins/epan/wimax/msg_dsc.c b/plugins/epan/wimax/msg_dsc.c
new file mode 100644
index 00000000..8f681965
--- /dev/null
+++ b/plugins/epan/wimax/msg_dsc.c
@@ -0,0 +1,185 @@
+/* msg_dsc.c
+ * WiMax MAC Management DSC-REQ/RSP/ACK Messages decoder
+ *
+ * Copyright (c) 2007 by Intel Corporation.
+ *
+ * Author: Lu Pan <lu.pan@intel.com>
+ *
+ * Wireshark - Network traffic analyzer
+ * By Gerald Combs <gerald@wireshark.org>
+ * Copyright 1999 Gerald Combs
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+/* Include files */
+
+#include "config.h"
+
+/*
+#define DEBUG
+*/
+
+#include <epan/packet.h>
+#include "wimax_mac.h"
+#include "wimax_utils.h"
+
+void proto_register_mac_mgmt_msg_dsc(void);
+void proto_reg_handoff_mac_mgmt_msg_dsc(void);
+
+static dissector_handle_t dsc_req_handle;
+static dissector_handle_t dsc_rsp_handle;
+static dissector_handle_t dsc_ack_handle;
+
+static gint proto_mac_mgmt_msg_dsc_decoder = -1;
+static gint ett_mac_mgmt_msg_dsc_req_decoder = -1;
+static gint ett_mac_mgmt_msg_dsc_rsp_decoder = -1;
+static gint ett_mac_mgmt_msg_dsc_ack_decoder = -1;
+
+/* fix fields */
+static gint hf_dsc_transaction_id = -1;
+static gint hf_dsc_confirmation_code = -1;
+
+
+static int dissect_mac_mgmt_msg_dsc_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
+{
+	guint offset = 0;
+	proto_item *dsc_item;
+	proto_tree *dsc_tree;
+
+	{	/* we are being asked for details */
+
+		/* display MAC message type */
+		dsc_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsc_decoder, tvb, offset, -1,
+							  "Dynamic Service Change Request (DSC-REQ)");
+		/* add MAC DSx subtree */
+		dsc_tree = proto_item_add_subtree(dsc_item, ett_mac_mgmt_msg_dsc_req_decoder);
+		/* Decode and display the Uplink Channel Descriptor (UCD) */
+		/* display the Transaction ID */
+		proto_tree_add_item(dsc_tree, hf_dsc_transaction_id, tvb, offset, 2, ENC_BIG_ENDIAN);
+		/* move to next field */
+		offset += 2;
+		/* process DSC REQ message TLV Encode Information */
+		wimax_common_tlv_encoding_decoder(tvb_new_subset_remaining(tvb, offset), pinfo, dsc_tree);
+	}
+	return tvb_captured_length(tvb);
+}
+
+static int dissect_mac_mgmt_msg_dsc_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
+{
+	guint offset = 0;
+	proto_item *dsc_item;
+	proto_tree *dsc_tree;
+
+	{	/* we are being asked for details */
+		/* display MAC message type */
+		dsc_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsc_decoder, tvb, offset, -1,
+							"Dynamic Service Change Response (DSC-RSP)");
+		/* add MAC DSx subtree */
+		dsc_tree = proto_item_add_subtree(dsc_item, ett_mac_mgmt_msg_dsc_rsp_decoder);
+		/* Decode and display the Uplink Channel Descriptor (UCD) */
+		/* display the Transaction ID */
+		proto_tree_add_item(dsc_tree, hf_dsc_transaction_id, tvb, offset, 2, ENC_BIG_ENDIAN);
+		/* move to next field */
+		offset += 2;
+		/* display the Confirmation Code */
+		proto_tree_add_item(dsc_tree, hf_dsc_confirmation_code, tvb, offset, 1, ENC_BIG_ENDIAN);
+		/* move to next field */
+		offset++;
+		/* process DSC RSP message TLV Encode Information */
+		wimax_common_tlv_encoding_decoder(tvb_new_subset_remaining(tvb, offset), pinfo, dsc_tree);
+	}
+	return tvb_captured_length(tvb);
+}
+
+static int dissect_mac_mgmt_msg_dsc_ack_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
+{
+	guint offset = 0;
+	proto_item *dsc_item;
+	proto_tree *dsc_tree;
+
+	{	/* we are being asked for details */
+		/* display MAC message type */
+		dsc_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsc_decoder, tvb, offset, -1,
+							  "Dynamic Service Change Acknowledge (DSC-ACK)");
+		/* add MAC DSx subtree */
+		dsc_tree = proto_item_add_subtree(dsc_item, ett_mac_mgmt_msg_dsc_ack_decoder);
+		/* Decode and display the Uplink Channel Descriptor (UCD) */
+		/* display the Transaction ID */
+		proto_tree_add_item(dsc_tree, hf_dsc_transaction_id, tvb, offset, 2, ENC_BIG_ENDIAN);
+		/* move to next field */
+		offset += 2;
+		/* display the Confirmation Code */
+		proto_tree_add_item(dsc_tree, hf_dsc_confirmation_code, tvb, offset, 1, ENC_BIG_ENDIAN);
+		/* move to next field */
+		offset++;
+		/* process DSC ACK message TLV Encode Information */
+		wimax_common_tlv_encoding_decoder(tvb_new_subset_remaining(tvb, offset), pinfo, dsc_tree);
+	}
+	return tvb_captured_length(tvb);
+}
+
+/* Register Wimax Mac Payload Protocol and Dissector */
+void proto_register_mac_mgmt_msg_dsc(void)
+{
+	/* DSx display */
+	static hf_register_info hf[] =
+	{
+		{
+			&hf_dsc_confirmation_code,
+			{
+				"Confirmation code", "wmx.dsc.confirmation_code",
+				FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
+			}
+		},
+		{
+			&hf_dsc_transaction_id,
+			{
+				"Transaction ID", "wmx.dsc.transaction_id",
+				FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL
+			}
+		}
+	};
+
+	/* Setup protocol subtree array */
+	static gint *ett[] =
+		{
+			&ett_mac_mgmt_msg_dsc_req_decoder,
+			&ett_mac_mgmt_msg_dsc_rsp_decoder,
+			&ett_mac_mgmt_msg_dsc_ack_decoder
+		};
+
+	proto_mac_mgmt_msg_dsc_decoder = proto_register_protocol (
+		"WiMax DSC Messages", /* name       */
+		"WiMax DSC",     /* short name */
+		"wmx.dsc"        /* abbrev     */
+		);
+
+	proto_register_field_array(proto_mac_mgmt_msg_dsc_decoder, hf, array_length(hf));
+	proto_register_subtree_array(ett, array_length(ett));
+
+	dsc_req_handle = register_dissector("mac_mgmt_msg_dsc_req_handler", dissect_mac_mgmt_msg_dsc_req_decoder, proto_mac_mgmt_msg_dsc_decoder);
+	dsc_rsp_handle = register_dissector("mac_mgmt_msg_dsc_rsp_handler", dissect_mac_mgmt_msg_dsc_rsp_decoder, proto_mac_mgmt_msg_dsc_decoder);
+	dsc_ack_handle = register_dissector("mac_mgmt_msg_dsc_ack_handler", dissect_mac_mgmt_msg_dsc_ack_decoder, proto_mac_mgmt_msg_dsc_decoder);
+}
+
+void
+proto_reg_handoff_mac_mgmt_msg_dsc(void)
+{
+	dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_DSC_REQ, dsc_req_handle);
+	dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_DSC_RSP, dsc_rsp_handle);
+	dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_DSC_ACK, dsc_ack_handle);
+}
+
+/*
+ * 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:
+ */