2007-05-25 23:40:42 +00:00
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/* msg_reg_rsp.c
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* WiMax MAC Management REG-RSP Message decoder
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*
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* Copyright (c) 2007 by Intel Corporation.
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*
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* Author: John R. Underwood <junderx@yahoo.com>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1999 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* Include files */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#define WIMAX_16E_2005
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#define FRAG_LAST 0x1
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2007-05-27 18:33:13 +00:00
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#include <glib.h>
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2007-05-25 23:40:42 +00:00
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#include <epan/packet.h>
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#include "wimax_tlv.h"
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#include "wimax_mac.h"
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#include "wimax_utils.h"
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extern gint proto_mac_mgmt_msg_reg_req_decoder;
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extern gboolean include_cor2_changes;
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extern gint man_ofdma;
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extern void dissect_extended_tlv(proto_tree *reg_req_tree, gint tlv_type, tvbuff_t *tvb, guint tlv_offset, guint tlv_len, packet_info *pinfo, guint offset, gint proto_registry);
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extern void dissect_mac_mgmt_msg_dsc_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static gint proto_mac_mgmt_msg_reg_rsp_decoder = -1;
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static gint ett_mac_mgmt_msg_reg_rsp_decoder = -1;
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static gint ett_reg_rsp_message_tree = -1;
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/* NCT messages */
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/* REG-RSP fields */
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static gint hf_reg_rsp_message_type = -1;
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static gint hf_reg_rsp_status = -1;
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static gint hf_tlv_type = -1;
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static gint hf_tlv_value = -1;
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static gint hf_reg_rsp_secondary_mgmt_cid = -1;
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static gint hf_reg_invalid_tlv = -1;
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static gint hf_reg_rsp_new_cid_after_ho = -1;
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static gint hf_reg_rsp_service_flow_id = -1;
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static gint hf_reg_rsp_system_resource_retain_time = -1;
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2008-06-20 10:17:13 +00:00
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static gint hf_reg_total_provisioned_sf = -1;
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2007-05-25 23:40:42 +00:00
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/* STRING RESOURCES */
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static const value_string vals_reg_rsp_status [] = {
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{0, "OK"},
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{1, "Message authentication failure"},
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{0, NULL}
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};
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/* Decode REG-RSP messages. */
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void dissect_mac_mgmt_msg_reg_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
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{
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guint offset = 0;
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guint tlv_offset;
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guint tvb_len, payload_type;
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proto_item *reg_rsp_item = NULL;
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proto_tree *reg_rsp_tree = NULL;
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proto_item *tlv_item = NULL;
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proto_tree *tlv_tree = NULL;
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proto_tree *sub_tree = NULL;
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gboolean hmac_found = FALSE;
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tlv_info_t tlv_info;
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gint tlv_type;
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guint tlv_len;
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guint this_offset = 0;
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tlv_info_t sub_tlv_info;
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gint sub_tlv_type;
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gint sub_tlv_len;
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guint sub_tlv_offset;
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/* Ensure the right payload type */
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payload_type = tvb_get_guint8(tvb, offset);
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if (payload_type != MAC_MGMT_MSG_REG_RSP)
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{
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return;
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}
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if (tree)
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{ /* we are being asked for details */
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2007-05-27 18:33:13 +00:00
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/* Get the tvb reported length */
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tvb_len = tvb_reported_length(tvb);
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2007-05-25 23:40:42 +00:00
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/* display MAC payload type REG-RSP */
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reg_rsp_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, offset, tvb_len, "MAC Management Message, REG-RSP (7)");
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/* add MAC REG-RSP subtree */
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reg_rsp_tree = proto_item_add_subtree(reg_rsp_item, ett_mac_mgmt_msg_reg_rsp_decoder);
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/* display the Message Type */
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proto_tree_add_item(reg_rsp_tree, hf_reg_rsp_message_type, tvb, offset, 1, FALSE);
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proto_tree_add_item(reg_rsp_tree, hf_reg_rsp_status, tvb, offset + 1, 1, FALSE);
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offset += 2;
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while (offset < tvb_len)
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{
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/* Get the TLV data. */
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init_tlv_info(&tlv_info, tvb, offset);
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/* get the TLV type */
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tlv_type = get_tlv_type(&tlv_info);
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/* get the TLV length */
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tlv_len = get_tlv_length(&tlv_info);
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if (tlv_type == -1 || tlv_len > MAX_TLV_LEN || tlv_len < 1)
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{ /* invalid tlv info */
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2009-01-08 07:36:11 +00:00
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if (check_col(pinfo->cinfo, COL_INFO))
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2007-05-25 23:40:42 +00:00
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{
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col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "REG-RSP TLV error");
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}
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proto_tree_add_item(reg_rsp_tree, hf_reg_invalid_tlv, tvb, offset, (tvb_len - offset), FALSE);
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break;
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}
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/* get the offset to the TLV data */
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tlv_offset = offset + get_tlv_value_offset(&tlv_info);
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switch (tlv_type) {
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case REG_ARQ_PARAMETERS:
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case REG_SS_MGMT_SUPPORT:
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case REG_IP_MGMT_MODE:
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case REG_IP_VERSION:
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case REG_UL_TRANSPORT_CIDS_SUPPORTED:
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case REG_IP_PHS_SDU_ENCAP:
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case REG_MAX_CLASSIFIERS_SUPPORTED:
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case REG_PHS_SUPPORT:
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case REG_ARQ_SUPPORT:
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case REG_DSX_FLOW_CONTROL:
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case REG_MCA_FLOW_CONTROL:
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case REG_MCAST_POLLING_CIDS:
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case REG_NUM_DL_TRANS_CID:
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case REG_MAC_ADDRESS:
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#ifdef WIMAX_16E_2005
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case REG_TLV_T_20_MAX_MAC_DATA_PER_FRAME_SUPPORT:
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case REG_TLV_T_21_PACKING_SUPPORT:
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case REG_TLV_T_22_MAC_EXTENDED_RTPS_SUPPORT:
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case REG_TLV_T_23_MAX_NUM_BURSTS_TRANSMITTED_CONCURRENTLY_TO_THE_MS:
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case REG_TLV_T_26_METHOD_FOR_ALLOCATING_IP_ADDR_SECONDARY_MGMNT_CONNECTION:
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case REG_TLV_T_27_HANDOVER_SUPPORTED:
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case REG_TLV_T_29_HO_PROCESS_OPTIMIZATION_MS_TIMER:
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case REG_TLV_T_31_MOBILITY_FEATURES_SUPPORTED:
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case REG_TLV_T_40_ARQ_ACK_TYPE:
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case REG_TLV_T_41_MS_HO_CONNECTIONS_PARAM_PROCESSING_TIME:
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case REG_TLV_T_42_MS_HO_TEK_PROCESSING_TIME:
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case REG_TLV_T_43_MAC_HEADER_AND_EXTENDED_SUBHEADER_SUPPORT:
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2008-06-20 15:55:32 +00:00
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case REG_POWER_SAVING_CLASS_CAPABILITY:
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#endif
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2007-05-25 23:40:42 +00:00
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dissect_extended_tlv(reg_rsp_tree, tlv_type, tvb, tlv_offset, tlv_len, pinfo, offset, proto_mac_mgmt_msg_reg_rsp_decoder);
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break;
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case REG_RSP_SECONDARY_MGMT_CID:
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tlv_tree = add_tlv_subtree(&tlv_info, ett_reg_rsp_message_tree, reg_rsp_tree, hf_reg_rsp_secondary_mgmt_cid, tvb, tlv_offset, tlv_len, FALSE);
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proto_tree_add_item(tlv_tree, hf_reg_rsp_secondary_mgmt_cid, tvb, tlv_offset, tlv_len, FALSE);
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break;
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2008-06-20 10:17:13 +00:00
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case REG_RSP_TLV_T_36_TOTAL_PROVISIONED_SERVICE_FLOW_DSAs:
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tlv_tree = add_tlv_subtree(&tlv_info, ett_reg_rsp_message_tree, reg_rsp_tree, hf_reg_total_provisioned_sf, tvb, tlv_offset, tlv_len, FALSE);
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proto_tree_add_item(tlv_tree, hf_reg_total_provisioned_sf, tvb, tlv_offset, tlv_len, FALSE);
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break;
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2007-05-25 23:40:42 +00:00
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case REG_RSP_TLV_T_24_CID_UPDATE_ENCODINGS:
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/* Display CID update encodings */
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/* add subtree */
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sub_tree = add_protocol_subtree(&tlv_info, ett_reg_rsp_message_tree, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, tlv_offset, tlv_len, "CID update encodings (%u byte(s))", tlv_len);
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/* Use a local copy of tlv_offset */
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this_offset = tlv_offset;
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while(this_offset < tlv_len) {
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/* Get the sub TLV data. */
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init_tlv_info(&sub_tlv_info, tvb, this_offset);
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/* get the sub TLV type */
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sub_tlv_type = get_tlv_type(&sub_tlv_info);
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/* get the TLV length */
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sub_tlv_len = get_tlv_length(&sub_tlv_info);
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if (tlv_type == -1 || sub_tlv_len > MAX_TLV_LEN || sub_tlv_len < 1)
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{ /* invalid tlv info */
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2009-01-08 07:36:11 +00:00
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if (check_col(pinfo->cinfo, COL_INFO))
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2007-05-25 23:40:42 +00:00
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{
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col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "REG-RSP TLV error");
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}
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proto_tree_add_item(reg_rsp_tree, hf_reg_invalid_tlv, tvb, offset, (tvb_len - offset), FALSE);
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break;
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}
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/* get the offset to the sub TLV data */
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sub_tlv_offset = this_offset + get_tlv_value_offset(&sub_tlv_info);
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switch (sub_tlv_type) {
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case REG_RSP_TLV_T_24_1_CID_UPDATE_ENCODINGS_NEW_CID:
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tlv_tree = add_tlv_subtree(&sub_tlv_info, ett_reg_rsp_message_tree, sub_tree, hf_reg_rsp_new_cid_after_ho, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
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proto_tree_add_item(tlv_tree, hf_reg_rsp_new_cid_after_ho, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
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break;
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case REG_RSP_TLV_T_24_2_CID_UPDATE_ENCODINGS_SFID:
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tlv_tree = add_tlv_subtree(&sub_tlv_info, ett_reg_rsp_message_tree, sub_tree, hf_reg_rsp_service_flow_id, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
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proto_tree_add_item(tlv_tree, hf_reg_rsp_service_flow_id, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
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break;
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case REG_RSP_TLV_T_24_3_CID_UPDATE_ENCODINGS_CONNECTION_INFO:
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tlv_tree = add_protocol_subtree(&sub_tlv_info, ett_reg_rsp_message_tree, sub_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, sub_tlv_offset, sub_tlv_len, "CID Update Encodings Connection Info (%u byte(s))", tlv_len);
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/* Decode the DSC_RSP subTLV's */
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dissect_mac_mgmt_msg_dsc_rsp_decoder(tvb_new_subset(tvb, sub_tlv_offset, sub_tlv_len, sub_tlv_len), pinfo, tlv_tree);
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break;
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default:
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tlv_tree = add_tlv_subtree(&sub_tlv_info, ett_reg_rsp_message_tree, sub_tree, hf_tlv_type, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
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proto_tree_add_item(tlv_tree, hf_tlv_type, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
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break;
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}
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this_offset = sub_tlv_len + sub_tlv_offset;
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}
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break;
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case REG_RSP_TLV_T_28_HO_SYSTEM_RESOURCE_RETAIN_TIME:
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tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, tlv_offset, tlv_len, "System Resource Retain Time (%u byte(s))", tlv_len);
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tlv_item = proto_tree_add_item(tlv_tree, hf_reg_rsp_system_resource_retain_time, tvb, tlv_offset, tlv_len, FALSE);
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if (include_cor2_changes) {
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proto_item_append_text(tlv_item, " (in units of 100 milliseconds)");
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} else {
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proto_item_append_text(tlv_item, " (multiple of 100 milliseconds)");
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}
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2008-04-24 21:51:14 +00:00
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break;
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2007-05-25 23:40:42 +00:00
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case DSx_UPLINK_FLOW:
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/* display Uplink Service Flow Encodings info */
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/* add subtree */
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tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, tlv_offset, tlv_len, "Uplink Service Flow Encodings (%u byte(s))", tlv_len);
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/* decode and display the DL Service Flow Encodings */
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wimax_service_flow_encodings_decoder(tvb_new_subset(tvb, tlv_offset, tlv_len, tlv_len), pinfo, tlv_tree);
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break;
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case DSx_DOWNLINK_FLOW:
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/* display Downlink Service Flow Encodings info */
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/* add subtree */
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tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, tlv_offset, tlv_len, "Downlink Service Flow Encodings (%u byte(s))", tlv_len);
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/* decode and display the DL Service Flow Encodings */
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wimax_service_flow_encodings_decoder(tvb_new_subset(tvb, tlv_offset, tlv_len, tlv_len), pinfo, tlv_tree);
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break;
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case HMAC_TUPLE: /* Table 348d */
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/* decode and display the HMAC Tuple */
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tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, tlv_offset, tlv_len, "HMAC Tuple (%u byte(s))", tlv_len);
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wimax_hmac_tuple_decoder(tlv_tree, tvb, offset+2, tlv_len);
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hmac_found = TRUE;
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break;
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case CMAC_TUPLE: /* Table 348b */
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/* decode and display the CMAC Tuple */
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tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, tlv_offset, tlv_len, "CMAC Tuple (%u byte(s))", tlv_len);
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wimax_cmac_tuple_decoder(tlv_tree, tvb, offset+2, tlv_len);
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break;
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case SHORT_HMAC_TUPLE:
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case SHORT_HMAC_TUPLE_COR2:
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if ((!include_cor2_changes && (tlv_type == SHORT_HMAC_TUPLE)) ||
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(include_cor2_changes && (tlv_type == SHORT_HMAC_TUPLE_COR2))) {
|
|
|
|
/* decode and display the Short HMAC Tuple */
|
|
|
|
tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, tlv_offset, tlv_len, "Short HMAC Tuple (%u byte(s))", tlv_len);
|
|
|
|
wimax_short_hmac_tuple_decoder(tlv_tree, tvb, tlv_offset, tlv_len);
|
|
|
|
} else {
|
|
|
|
/* Unknown TLV Type */
|
|
|
|
tlv_tree = add_tlv_subtree(&tlv_info, ett_reg_rsp_message_tree, reg_rsp_tree, hf_tlv_type, tvb, tlv_offset, tlv_len, FALSE);
|
|
|
|
proto_tree_add_item(tlv_tree, hf_tlv_type, tvb, tlv_offset, tlv_len, FALSE);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case VENDOR_SPECIFIC_INFO:
|
|
|
|
case VENDOR_ID_ENCODING:
|
|
|
|
case MAC_VERSION_ENCODING:
|
|
|
|
wimax_common_tlv_encoding_decoder(tvb_new_subset(tvb, offset, (tvb_len - offset), (tvb_len - offset)), pinfo, reg_rsp_tree);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
tlv_tree = add_tlv_subtree(&tlv_info, ett_reg_rsp_message_tree, reg_rsp_tree, hf_tlv_type, tvb, tlv_offset, tlv_len, FALSE);
|
|
|
|
proto_tree_add_item(tlv_tree, hf_tlv_type, tvb, tlv_offset, tlv_len, FALSE);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
offset = tlv_len + tlv_offset;
|
|
|
|
} /* end of TLV process while loop */
|
|
|
|
if (!hmac_found)
|
|
|
|
proto_item_append_text(reg_rsp_tree, " (HMAC Tuple is missing !)");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2009-08-04 19:01:34 +00:00
|
|
|
/* Register Wimax Mac Payload Protocol and Dissector */
|
|
|
|
void proto_register_mac_mgmt_msg_reg_rsp(void)
|
|
|
|
{
|
|
|
|
/* REG-RSP fields display */
|
|
|
|
static hf_register_info hf[] =
|
|
|
|
{
|
|
|
|
{
|
|
|
|
&hf_reg_rsp_message_type,
|
|
|
|
{
|
|
|
|
"MAC Management Message Type", "wmx.macmgtmsgtype.reg_rsp",
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_reg_invalid_tlv,
|
|
|
|
{
|
|
|
|
"Invalid TLV", "wmx.reg_rsp.invalid_tlv",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_reg_rsp_new_cid_after_ho,
|
|
|
|
{
|
|
|
|
"New CID after handover to new BS", "wmx.reg_rsp.new_cid_after_ho",
|
|
|
|
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_reg_rsp_status,
|
|
|
|
{
|
|
|
|
"Response", "wmx.reg_rsp.response",
|
|
|
|
FT_UINT8, BASE_HEX, VALS(vals_reg_rsp_status), 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_reg_rsp_secondary_mgmt_cid,
|
|
|
|
{
|
|
|
|
"Secondary Management CID", "wmx.reg_rsp.secondary_mgmt_cid",
|
|
|
|
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_reg_total_provisioned_sf,
|
|
|
|
{
|
|
|
|
"Total Number of Provisional Service Flow", "wmx.reg_rsp.total_provisional_sf",
|
|
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_reg_rsp_service_flow_id,
|
|
|
|
{
|
|
|
|
"Service flow ID", "wmx.reg_rsp.service_flow_id",
|
|
|
|
FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_reg_rsp_system_resource_retain_time,
|
|
|
|
{
|
|
|
|
"System Resource Retain Time", "wmx.reg_rsp.system_resource_retain_time",
|
|
|
|
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_tlv_type,
|
|
|
|
{
|
|
|
|
"Unknown TLV Type", "wmx.reg_rsp.unknown_tlv_type",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL
|
|
|
|
}
|
|
|
|
},
|
|
|
|
{
|
|
|
|
&hf_tlv_value,
|
|
|
|
{
|
|
|
|
"Value", "wmx.reg_rsp.tlv_value",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0x00, NULL, HFILL
|
|
|
|
}
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Setup protocol subtree array */
|
|
|
|
static gint *ett[] =
|
|
|
|
{
|
|
|
|
&ett_mac_mgmt_msg_reg_rsp_decoder,
|
|
|
|
&ett_reg_rsp_message_tree
|
|
|
|
};
|
|
|
|
|
|
|
|
proto_mac_mgmt_msg_reg_rsp_decoder = proto_mac_mgmt_msg_reg_req_decoder;
|
|
|
|
|
|
|
|
proto_register_field_array(proto_mac_mgmt_msg_reg_rsp_decoder, hf, array_length(hf));
|
|
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
}
|