From a491fec183044f6065b8d92a3775f5130049b636 Mon Sep 17 00:00:00 2001 From: Gerald Combs Date: Fri, 25 May 2007 23:40:42 +0000 Subject: From Mike Harvey: Support for WiMAX and the WiMAX M2M encapsulation protocol. Add support for WiMAX and M2M to various makefiles and installer files. Add basic support for M2M to randpkt. svn path=/trunk/; revision=21945 --- plugins/wimax/msg_dsc.c | 250 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 250 insertions(+) create mode 100644 plugins/wimax/msg_dsc.c (limited to 'plugins/wimax/msg_dsc.c') diff --git a/plugins/wimax/msg_dsc.c b/plugins/wimax/msg_dsc.c new file mode 100644 index 0000000000..2a8c1eb970 --- /dev/null +++ b/plugins/wimax/msg_dsc.c @@ -0,0 +1,250 @@ +/* msg_dsc.c + * WiMax MAC Management DSC-REQ/RSP/ACK Messages decoder + * + * Copyright (c) 2007 by Intel Corporation. + * + * Author: Lu Pan + * + * $Id$ + * + * Wireshark - Network traffic analyzer + * By Gerald Combs + * Copyright 1999 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* Include files */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +/* +#define DEBUG +*/ + +#include +#include +#include "wimax_tlv.h" +#include "wimax_mac.h" +#include "wimax_utils.h" + +extern gint proto_mac_mgmt_msg_dsa_decoder; + +/* forward reference */ +void proto_register_mac_mgmt_msg_dsc(void); +void dissect_mac_mgmt_msg_dsc_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); +void dissect_mac_mgmt_msg_dsc_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); +void dissect_mac_mgmt_msg_dsc_ack_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); + +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; + +/* 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 +}; + +static gchar *dsc_msgs[] = +{ + "Dynamic Service Change Request (DSC-REQ)", + "Dynamic Service Change Response (DSC-RSP)", + "Dynamic Service Change Acknowledge (DSC-ACK)" +}; + +/* fix fields */ +static gint hf_dsc_req_message_type = -1; +static gint hf_dsc_transaction_id = -1; +static gint hf_dsc_rsp_message_type = -1; +static gint hf_dsc_confirmation_code = -1; +static gint hf_dsc_ack_message_type = -1; + +/* DSx display */ +static hf_register_info hf[] = +{ + { + &hf_dsc_ack_message_type, + { + "MAC Management Message Type", "wimax.macmgtmsgtype.dsc_ack", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_dsc_req_message_type, + { + "MAC Management Message Type", "wimax.macmgtmsgtype.dsc_req", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_dsc_rsp_message_type, + { + "MAC Management Message Type", "wimax.macmgtmsgtype.dsc_rsp", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_dsc_confirmation_code, + { + "Confirmation code", "wimax.dsc.confirmation_code", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_dsc_transaction_id, + { + "Transaction ID", "wimax.dsc.transaction_id", + FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL + } + } +}; + +/* Register Wimax Mac Payload Protocol and Dissector */ +void proto_register_mac_mgmt_msg_dsc(void) +{ + if (proto_mac_mgmt_msg_dsc_decoder == -1) + { + proto_mac_mgmt_msg_dsc_decoder = proto_mac_mgmt_msg_dsa_decoder; + + proto_register_field_array(proto_mac_mgmt_msg_dsc_decoder, hf, array_length(hf)); + proto_register_subtree_array(ett, array_length(ett)); + } +} + +void dissect_mac_mgmt_msg_dsc_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + guint offset = 0; + guint tvb_len, payload_type; + guint dsc_transaction_id; + proto_item *dsc_item = NULL; + proto_tree *dsc_tree = NULL; + + if(tree) + { /* we are being asked for details */ + /* get the message type */ + payload_type = tvb_get_guint8(tvb, offset); + /* ensure the message type is DSC REQ/RSP/ACK */ + if(payload_type != MAC_MGMT_MSG_DSC_REQ) + return; + /* Get the tvb length */ + tvb_len = tvb_length(tvb); + /* display MAC message type */ + dsc_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsc_decoder, tvb, offset, tvb_len, "%s (%u bytes)", dsc_msgs[payload_type - MAC_MGMT_MSG_DSC_REQ], tvb_len); + /* 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 Message Type */ + proto_tree_add_item(dsc_tree, hf_dsc_req_message_type, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* get the Configuration Change Count */ + dsc_transaction_id = tvb_get_ntohs(tvb, offset); + /* display the Transaction ID */ + proto_tree_add_item(dsc_tree, hf_dsc_transaction_id, tvb, offset, 2, FALSE); + /* move to next field */ + offset += 2; + /* process DSC REQ message TLV Encode Information */ + wimax_common_tlv_encoding_decoder(tvb_new_subset(tvb, offset, (tvb_len - offset), (tvb_len - offset)), pinfo, dsc_tree); + } +} + +void dissect_mac_mgmt_msg_dsc_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + guint offset = 0; + guint tvb_len, payload_type; + guint dsc_transaction_id; + proto_item *dsc_item = NULL; + proto_tree *dsc_tree = NULL; + + if(tree) + { /* we are being asked for details */ + /* get the message type */ + payload_type = tvb_get_guint8(tvb, offset); + /* ensure the message type is DSC REQ/RSP/ACK */ + if(payload_type != MAC_MGMT_MSG_DSC_RSP) + return; + /* Get the tvb length */ + tvb_len = tvb_length(tvb); + /* display MAC message type */ + dsc_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsc_decoder, tvb, offset, tvb_len, "%s (%u bytes)", dsc_msgs[payload_type - MAC_MGMT_MSG_DSC_REQ], tvb_len); + /* 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 Message Type */ + proto_tree_add_item(dsc_tree, hf_dsc_rsp_message_type, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* get the Configuration Change Count */ + dsc_transaction_id = tvb_get_ntohs(tvb, offset); + /* display the Transaction ID */ + proto_tree_add_item(dsc_tree, hf_dsc_transaction_id, tvb, offset, 2, FALSE); + /* move to next field */ + offset += 2; + /* display the Confirmation Code */ + proto_tree_add_item(dsc_tree, hf_dsc_confirmation_code, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* process DSC RSP message TLV Encode Information */ + wimax_common_tlv_encoding_decoder(tvb_new_subset(tvb, offset, (tvb_len - offset), (tvb_len - offset)), pinfo, dsc_tree); + } +} + +void dissect_mac_mgmt_msg_dsc_ack_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + guint offset = 0; + guint tvb_len, payload_type; + guint dsc_transaction_id; + proto_item *dsc_item = NULL; + proto_tree *dsc_tree = NULL; + + if(tree) + { /* we are being asked for details */ + /* get the message type */ + payload_type = tvb_get_guint8(tvb, offset); + /* ensure the message type is DSC REQ/RSP/ACK */ + if((payload_type < MAC_MGMT_MSG_DSC_REQ) || (payload_type > MAC_MGMT_MSG_DSC_ACK)) + return; + /* Get the tvb length */ + tvb_len = tvb_length(tvb); + /* display MAC message type */ + dsc_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dsc_decoder, tvb, offset, tvb_len, "%s (%u bytes)", dsc_msgs[payload_type - MAC_MGMT_MSG_DSC_REQ], tvb_len); + /* 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 Message Type */ + proto_tree_add_item(dsc_tree, hf_dsc_ack_message_type, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* get the Configuration Change Count */ + dsc_transaction_id = tvb_get_ntohs(tvb, offset); + /* display the Transaction ID */ + proto_tree_add_item(dsc_tree, hf_dsc_transaction_id, tvb, offset, 2, FALSE); + /* move to next field */ + offset += 2; + /* display the Confirmation Code */ + proto_tree_add_item(dsc_tree, hf_dsc_confirmation_code, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* process DSC ACK message TLV Encode Information */ + wimax_common_tlv_encoding_decoder(tvb_new_subset(tvb, offset, (tvb_len - offset), (tvb_len - offset)), pinfo, dsc_tree); + } +} + -- cgit v1.2.3