01844e151a
the number of bytes in the packet or subset of the packet is the reported length, tvb_length() just gives you the amount of that data that was actually captured. Include <glib.h>, not <gmodule.h>, even in plugins. Fix the version numbers in the rc files. svn path=/trunk/; revision=21960
2820 lines
86 KiB
C
2820 lines
86 KiB
C
/* msg_dlmap.c
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* WiMax MAC Management DL-MAP 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: Mike Harvey <michael.harvey@intel.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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#include "moduleinfo.h"
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/prefs.h>
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#include "crc.h"
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#include "wimax_bits.h"
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extern gint proto_wimax;
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extern gboolean include_cor2_changes;
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#define MAC_MGMT_MSG_DLMAP 2
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#define XBIT(var, bits, desc) \
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do { \
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var = BIT_BITS(bit, bufptr, bits); \
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proto_tree_add_text(tree, tvb, BITHI(bit, bits), desc ": %d", var); \
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bit += bits; \
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} while(0)
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#define VBIT(var, bits, hf) \
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do { \
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var = BIT_BITS(bit, bufptr, bits); \
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proto_tree_add_uint(tree, hf, tvb, BITHI(bit,bits), var); \
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bit += bits; \
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} while(0)
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#define XNIB(var, nibs, desc) \
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do { \
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var = NIB_NIBS(nib, bufptr, nibs); \
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proto_tree_add_text(tree, tvb, NIBHI(nib, nibs), desc ": %d", var); \
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nib += nibs; \
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} while(0)
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gint harq = 0; /* 1 if HARQ enabled (TODO) */
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gint fusc = 0; /* 1 if current zone permutation is FUSC or optional FUSC (TODO) */
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gint tusc = 0; /* 1 if current zone permutation is AMC, TUSC1 or TUSC2 (TODO) */
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gint ir_type = 0; /* reduced AAS map (TODO) */
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gint RCID_Type = 0;
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gint N_layer = 0;
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gint STC_Zone_Dedicated_Pilots = 0;
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gint STC_Zone_Matrix = 0;
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gint INC_CID = 0;
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gint sub_dl_ul_map = 0;
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extern gint man_ofdma;
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/* forward reference */
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void dissect_mac_mgmt_msg_dlmap_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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gint proto_mac_mgmt_msg_dlmap_decoder = -1;
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static gint ett_dlmap = -1;
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static gint ett_dlmap_ie = -1;
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static gint ett_dlmap_c_ie = -1;
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static gint ett_109x = -1; /* SUB-DL-UL-MAP */
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static gint ett_109x_dl = -1;
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static gint ett_109x_ul = -1;
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static gint ett_275_phy = -1;
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static gint ett_275_1 = -1;
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static gint ett_277 = -1;
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static gint ett_277b = -1;
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static gint ett_278 = -1;
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static gint ett_279 = -1;
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static gint ett_280 = -1;
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static gint ett_281 = -1;
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static gint ett_282 = -1;
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static gint ett_283 = -1;
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static gint ett_284 = -1;
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static gint ett_285 = -1;
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static gint ett_286 = -1;
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static gint ett_286a = -1;
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static gint ett_286b = -1;
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static gint ett_286c = -1;
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static gint ett_286d = -1;
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static gint ett_286e = -1;
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static gint ett_286f = -1;
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static gint ett_286g = -1;
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static gint ett_286h = -1;
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static gint ett_286i = -1;
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static gint ett_286j = -1;
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static gint ett_286k = -1;
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static gint ett_286l = -1;
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static gint ett_286m = -1;
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static gint ett_286n = -1;
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static gint ett_286o = -1;
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static gint ett_286p = -1;
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static gint ett_286q = -1;
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static gint ett_286r = -1;
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static gint ett_286s = -1;
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static gint ett_286t = -1;
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static gint ett_286u = -1;
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static gint ett_286v = -1;
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static gint ett_286w = -1;
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static gint ett_286x = -1;
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static gint ett_286y = -1;
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static gint ett_286z = -1;
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static gint ett_305 = -1;
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static gint ett_305_dl = -1;
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static gint ett_308a = -1;
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/* Setup protocol subtree array */
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static gint *ett[] =
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{
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&ett_dlmap,
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&ett_dlmap_ie,
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&ett_dlmap_c_ie,
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&ett_109x,
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&ett_109x_dl,
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&ett_109x_ul,
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&ett_275_phy,
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&ett_275_1,
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&ett_277,
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&ett_277b,
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&ett_278,
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&ett_279,
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&ett_280,
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&ett_281,
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&ett_282,
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&ett_283,
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&ett_284,
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&ett_285,
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&ett_286,
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&ett_286a,
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&ett_286b,
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&ett_286c,
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&ett_286d,
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&ett_286e,
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&ett_286f,
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&ett_286g,
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&ett_286h,
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&ett_286i,
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&ett_286j,
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&ett_286k,
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&ett_286l,
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&ett_286m,
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&ett_286n,
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&ett_286o,
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&ett_286p,
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&ett_286q,
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&ett_286r,
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&ett_286s,
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&ett_286t,
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&ett_286u,
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&ett_286v,
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&ett_286w,
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&ett_286x,
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&ett_286y,
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&ett_286z,
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&ett_305,
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&ett_305_dl,
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&ett_308a,
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};
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#define DCD_DOWNLINK_BURST_PROFILE 1
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#define DCD_BS_EIRP 2
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#define DCD_FRAME_DURATION 3
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#define DCD_PHY_TYPE 4
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#define DCD_POWER_ADJUSTMENT 5
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#define DCD_CHANNEL_NR 6
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#define DCD_TTG 7
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#define DCD_RTG 8
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#define DCD_RSS 9
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#define DCD_CHANNEL_SWITCH_FRAME_NR 10
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#define DCD_FREQUENCY 12
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#define DCD_BS_ID 13
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#define DCD_FRAME_DURATION_CODE 14
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#define DCD_FRAME_NR 15
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#define DCD_SIZE_CQICH_ID 16
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#define DCD_H_ARQ_ACK_DELAY 17
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#define DCD_MAC_VERSION 148
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#define DCD_RESTART_COUNT 154
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#define DCD_BURST_FREQUENCY 1
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#define DCD_BURST_FEC_CODE_TYPE 150
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#define DCD_BURST_DIUC_EXIT_THRESHOLD 151
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#define DCD_BURST_DIUC_ENTRY_THRESHOLD 152
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#define DCD_BURST_TCS_ENABLE 153
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#define DCD_TLV_T_541_TYPE_FUNCTION_ACTION 1
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#define DCD_TLV_T542_TRIGGER_VALUE 2
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#define DCD_TLV_T_543_TRIGGER_AVERAGING_DURATION 3
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#define DCD_TLV_T_19_PERMUTATION_TYPE_FOR_BROADCAST_REGION_IN_HARQ_ZONE 19
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#define DCD_TLV_T_20_MAXIMUM_RETRANSMISSION 20
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#define DCD_TLV_T_21_DEFAULT_RSSI_AND_CINR_AVERAGING_PARAMETER 21
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#define DCD_TLV_T_22_DL_AMC_ALLOCATED_PHYSICAL_BANDS_BITMAP 22
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#define DCD_TLV_T_31_H_ADD_THRESHOLD 31
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#define DCD_TLV_T_32_H_DELETE_THRESHOLD 32
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#define DCD_TLV_T_33_ASR 33
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#define DCD_TLV_T_34_DL_REGION_DEFINITION 34
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#define DCD_TLV_T_35_PAGING_GROUP_ID 35
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#define DCD_TLV_T_36_TUSC1_PERMUTATION_ACTIVE_SUBCHANNELS_BITMAP 36
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#define DCD_TLV_T_37_TUSC2_PERMUTATION_ACTIVE_SUBCHANNELS_BITMAP 37
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#define DCD_TLV_T_45_PAGING_INTERVAL_LENGTH 45
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#define DCD_TLV_T_50_HO_TYPE_SUPPORT 50
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#define DCD_TLV_T_51_HYSTERSIS_MARGIN 51
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#define DCD_TLV_T_52_TIME_TO_TRIGGER_DURATION 52
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#define DCD_TLV_T_54_TRIGGER 54
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#define DCD_TLV_T_153_DOWNLINK_BURST_PROFILE_FOR_MULTIPLE_FEC_TYPES 153
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#define DL_MAP_NCT_PMP 0
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#define DL_MAP_NCT_DM 1
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#define DL_MAP_NCT_PTP 2
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/* NCT messages */
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static const value_string nct_msgs[] =
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{
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{ DL_MAP_NCT_PMP, "PMP" },
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{ DL_MAP_NCT_PMP, "DM" },
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{ DL_MAP_NCT_PMP, "PTP" },
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{ 0, NULL }
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};
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/* Repetition Coding Indications */
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static const value_string rep_msgs[] =
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{
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{ 0, "No Repetition Coding" },
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{ 1, "Repetition Coding of 2 Used" },
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{ 2, "Repetition Coding of 4 Used" },
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{ 3, "Repetition Coding of 6 Used" },
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{ 0, NULL }
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};
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/* DL Frame Prefix Coding Indications */
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static const value_string boost_msgs[] =
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{
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{ 0, "Normal (not boosted)" },
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{ 1, "+6dB" },
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{ 2, "-6dB" },
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{ 3, "+9dB" },
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{ 4, "+3dB" },
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{ 5, "-3dB" },
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{ 6, "-9dB" },
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{ 7, "-12dB" },
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{ 0, NULL }
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};
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/* dl-map fields */
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static gint hf_dlmap_message_type = -1;
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static gint hf_dlmap_phy_fdur = -1;
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static gint hf_dlmap_phy_fnum = -1;
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static gint hf_dlmap_fch_expected = -1;
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static gint hf_dlmap_dcd = -1;
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static gint hf_dlmap_bsid = -1;
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static gint hf_dlmap_ofdma_sym = -1;
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static gint hf_dlmap_ie = -1;
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static gint hf_dlmap_ie_diuc = -1;
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static gint hf_dlmap_ie_ncid = -1;
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static gint hf_dlmap_ie_cid = -1;
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static gint hf_dlmap_ie_offsym = -1;
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static gint hf_dlmap_ie_offsub = -1;
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static gint hf_dlmap_ie_boosting = -1;
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static gint hf_dlmap_ie_numsym = -1;
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static gint hf_dlmap_ie_numsub = -1;
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static gint hf_dlmap_ie_rep = -1;
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static gint hf_dlmap_ie_offsym2 = -1;
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static gint hf_dlmap_ie_offsub2 = -1;
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static gint hf_dlmap_ie_boosting2 = -1;
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static gint hf_dlmap_ie_numsym2 = -1;
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static gint hf_dlmap_ie_numsub2 = -1;
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static gint hf_dlmap_ie_rep2 = -1;
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static gint hf_dlmap_xie_diuc = -1;
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static gint hf_dlmap_xie_len = -1;
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static gint hf_dlmapc_compr = -1;
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static gint hf_dlmapc_ulmap = -1;
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static gint hf_dlmapc_rsv = -1;
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static gint hf_dlmapc_len = -1;
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static gint hf_dlmapc_sync = -1;
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static gint hf_dlmapc_opid = -1;
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static gint hf_dlmapc_secid = -1;
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static gint hf_dlmapc_count = -1;
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static gint hf_109x_cmi = -1;
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static gint hf_109x_len = -1;
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static gint hf_109x_rcid = -1;
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static gint hf_109x_haoi = -1;
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static gint hf_109x_dl = -1;
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static gint hf_109x_ul = -1;
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static gint hf_109x_dlie = -1;
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static gint hf_109x_symofs = -1;
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static gint hf_109x_subofs = -1;
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static gint hf_109x_rsv = -1;
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static gint hf_308a_cmi = -1;
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static gint hf_308a_ulmap = -1;
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static gint hf_308a_type = -1;
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static gint hf_308a_mult = -1;
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static gint hf_308a_rsv = -1;
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static gint hf_mac_header_compress_dlmap_crc = -1;
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/* DL-MAP fields display */
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static hf_register_info hf[] =
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{
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{
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&hf_dlmap_message_type,
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{
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"MAC Management Message Type", "wimax.macmgtmsgtype.dlmap",
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_dlmap_bsid,
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{
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"Base Station ID", "wimax.dlmap.bsid",
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FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_dlmap_dcd,
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{
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"DCD Count", "wimax.dlmap.dcd",
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_dlmap_fch_expected,
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{
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"FCH Expected", "wimax.dlmap.fch_expected",
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FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_dlmap_ie,
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{
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"DL-MAP IE", "wimax.dlmap.ie",
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_dlmap_ie_boosting,
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{
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"Boosting", "wimax.dlmap.ie.boosting",
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FT_UINT32, BASE_DEC, VALS(boost_msgs), 0x00038000, "", HFILL
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}
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},
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{
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&hf_dlmap_ie_boosting2,
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{
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"Boosting", "wimax.dlmap.ie.boosting",
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FT_UINT32, BASE_DEC, VALS(boost_msgs), 0x0000E000, "", HFILL
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}
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},
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{
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&hf_dlmap_ie_cid,
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{
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"CID", "wimax.dlmap.ie.cid",
|
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FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL
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}
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},
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{
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&hf_dlmap_ie_diuc,
|
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{
|
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"DIUC", "wimax.dlmap.ie.diuc",
|
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
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&hf_dlmap_ie_ncid,
|
|
{
|
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"N_CID", "wimax.dlmap.ie.ncid",
|
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FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
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{
|
|
&hf_dlmap_ie_numsub,
|
|
{
|
|
"Number of Subchannels", "wimax.dlmap.ie.numsub",
|
|
FT_UINT32, BASE_DEC, NULL, 0x000000FC, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_ie_numsym,
|
|
{
|
|
"Number of OFDMA Symbols", "wimax.dlmap.ie.numsym",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00007F00, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_ie_numsub2,
|
|
{
|
|
"Number of Subchannels", "wimax.dlmap.ie.numsub",
|
|
FT_UINT32, BASE_DEC, NULL, 0x000000FC, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_ie_numsym2,
|
|
{
|
|
"Number of OFDMA Symbols", "wimax.dlmap.ie.numsym",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00001F00, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_ie_offsub,
|
|
{
|
|
"Subchannel Offset", "wimax.dlmap.ie.offsub",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00FC0000, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_ie_offsym,
|
|
{
|
|
"OFDMA Symbol Offset", "wimax.dlmap.ie.offsym",
|
|
FT_UINT32, BASE_DEC, NULL, 0xFF000000, "", HFILL
|
|
}
|
|
},
|
|
/* alt ie format */
|
|
{
|
|
&hf_dlmap_ie_offsub2,
|
|
{
|
|
"Subchannel Offset", "wimax.dlmap.ie.offsub",
|
|
FT_UINT32, BASE_DEC, NULL, 0x00FF0000, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_ie_offsym2,
|
|
{
|
|
"OFDMA Symbol Offset", "wimax.dlmap.ie.offsym",
|
|
FT_UINT32, BASE_DEC, NULL, 0xFF000000, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_ie_rep,
|
|
{
|
|
"Repetition Coding Indication", "wimax.dlmap.ie.rep",
|
|
FT_UINT32, BASE_DEC, VALS(rep_msgs), 0x00000003, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_ie_rep2,
|
|
{
|
|
"Repetition Coding Indication", "wimax.dlmap.ie.rep",
|
|
FT_UINT32, BASE_DEC, VALS(rep_msgs), 0x00000003, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_ofdma_sym,
|
|
{
|
|
"Num OFDMA Symbols", "wimax.dlmap.ofdma_sym",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_phy_fdur,
|
|
{
|
|
"Frame Duration Code", "wimax.dlmap.phy_fdur",
|
|
FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_phy_fnum,
|
|
{
|
|
"Frame Number", "wimax.dlmap.phy_fnum",
|
|
FT_UINT24, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmapc_compr,
|
|
{
|
|
"Compressed map indicator", "wimax.dlmapc.compr",
|
|
FT_UINT16, BASE_DEC, NULL, 0xe000, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmapc_count,
|
|
{
|
|
"DL IE Count", "wimax.dlmapc.count",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmapc_len,
|
|
{
|
|
"Map message length", "wimax.dlmapc.len",
|
|
FT_UINT16, BASE_DEC, NULL, 0x07FF, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmapc_opid,
|
|
{
|
|
"Operator ID", "wimax.dlmapc.opid",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmapc_rsv,
|
|
{
|
|
"Reserved", "wimax.dlmapc.rsv",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0800, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmapc_secid,
|
|
{
|
|
"Sector ID", "wimax.dlmapc.secid",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmapc_sync,
|
|
{
|
|
"PHY Synchronization Field", "wimax.dlmapc.sync",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmapc_ulmap,
|
|
{
|
|
"UL-MAP appended", "wimax.dlmapc.ulmap",
|
|
FT_UINT16, BASE_DEC, NULL, 0x1000, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_xie_diuc,
|
|
{
|
|
"Extended DIUC", "wimax.dlmapc.xie_diuc",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_dlmap_xie_len,
|
|
{
|
|
"Length", "wimax.dlmapc.xie_len",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_109x_cmi,
|
|
{
|
|
"SUB-DL-UL-MAP map indicator", "wimax.dlul.cmi",
|
|
FT_UINT16, BASE_DEC, NULL, 0xE000, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_109x_dl,
|
|
{
|
|
"DL HARQ ACK offset", "wimax.dlul.dl",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_109x_dlie,
|
|
{
|
|
"DL IE Count", "wimax.dlul.dlie",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_109x_haoi,
|
|
{
|
|
"HARQ ACK offset indicator", "wimax.dlul.haoi",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0001, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_109x_len,
|
|
{
|
|
"Map message length - The length is limited to 735 bytes at most", "wimax.dlul.len",
|
|
FT_UINT16, BASE_DEC, NULL, 0x1FF8, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_109x_rcid,
|
|
{
|
|
"RCID_Type", "wimax.dlul.rcid",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0006, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_109x_subofs,
|
|
{
|
|
"Subchannel offset", "wimax.dlul.subofs",
|
|
FT_UINT8, BASE_DEC, NULL, 0xFE, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_109x_symofs,
|
|
{
|
|
"OFDMA Symbol offset of subsequent sub-bursts "
|
|
"in this Sub-DL-UL-MAP message with reference to "
|
|
"the start of UL sub-frame.", "wimax.dlul.symofs",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_109x_rsv,
|
|
{
|
|
"Reserved", "wimax.dlul.rsv",
|
|
FT_UINT8, BASE_DEC, NULL, 0x01, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_109x_ul,
|
|
{
|
|
"UL HARQ ACK offset", "wimax.dlul.ul",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_308a_cmi,
|
|
{
|
|
"Compressed map indicator", "wimax.dlmap.reduced_aas_private.cmi",
|
|
FT_UINT8, BASE_DEC, NULL, 0xe0, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_308a_mult,
|
|
{
|
|
"Multiple IE", "wimax.dlmap.reduced_aas_private.mult",
|
|
FT_UINT8, BASE_DEC, NULL, 0x02, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_308a_rsv,
|
|
{
|
|
"Reserved", "wimax.dlmap.reduced_aas_private.rsv",
|
|
FT_UINT8, BASE_DEC, NULL, 0x01, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_308a_type,
|
|
{
|
|
"Compressed Map Type", "wimax.dlmap.reduced_aas_private.type",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0d, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_308a_ulmap,
|
|
{
|
|
"UL-MAP appended", "wimax.dlmap.reduced_aas_private.ulmap",
|
|
FT_UINT8, BASE_DEC, NULL, 0x10, "", HFILL
|
|
}
|
|
},
|
|
{
|
|
&hf_mac_header_compress_dlmap_crc,
|
|
{
|
|
"CRC", "wimax.compress_dlmap_crc",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0, "", HFILL
|
|
}
|
|
}
|
|
};
|
|
|
|
/********************************************************************
|
|
* DL-MAP Miscellaneous IEs and TLVs
|
|
*******************************************************************/
|
|
|
|
gint RCID_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb, gint RCID_Type)
|
|
{
|
|
/* RCID_IE 8.4.5.3 and 8.4.5.3.20.1 */
|
|
/* offset of IE in bits, length is variable */
|
|
gint bit = offset;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint Prefix = 0;
|
|
gint cid = 0;
|
|
|
|
if (RCID_Type == 0)
|
|
length = 16;
|
|
else {
|
|
Prefix = BIT_BIT(bit, bufptr);
|
|
if (Prefix == 1) length = 12;
|
|
else if (RCID_Type == 1) length = 12;
|
|
else if (RCID_Type == 2) length = 8;
|
|
else if (RCID_Type == 3) length = 4;
|
|
}
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, BITHI(bit, length), "RCID_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286j);
|
|
|
|
if (RCID_Type == 0) {
|
|
XBIT(cid, 16, "CID");
|
|
} else {
|
|
proto_tree_add_text(tree, tvb, BITHI(bit,1), "Prefix: %d", Prefix);
|
|
bit++;
|
|
|
|
if (Prefix == 1) {
|
|
/* RCID 11 */
|
|
XBIT(cid, 11, "CID11");
|
|
} else {
|
|
if (RCID_Type == 1) {
|
|
/* RCID 11 */
|
|
XBIT(cid, 11, "CID11");
|
|
} else if (RCID_Type == 2) {
|
|
/* RCID 7 */
|
|
XBIT(cid, 7, "CID7");
|
|
} else if (RCID_Type == 3) {
|
|
/* RCID 3 */
|
|
XBIT(cid, 3, "CID3");
|
|
}
|
|
}
|
|
}
|
|
|
|
proto_item_append_text(ti, " (CID = %d)", cid);
|
|
|
|
return length; /* return length in bits */
|
|
}
|
|
|
|
/********************************************************************
|
|
* DL-MAP Extended-2 HARQ sub-burst IEs (8.4.5.3.21)
|
|
*******************************************************************/
|
|
|
|
gint Dedicated_DL_Control_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* 8.4.5.3.20 */
|
|
/* offset of IE in nibbles, length is variable */
|
|
gint nib;
|
|
gint nibble;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint len;
|
|
|
|
nib = offset;
|
|
|
|
length = NIB_NIBBLE(nib, bufptr); /* length in nibbles */
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(nib, length+1), "Dedicated_DL_Control_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286i);
|
|
|
|
proto_tree_add_text(tree, tvb, NIBHI(nib,1), "Length: %d", length);
|
|
nib++;
|
|
nibble = NIB_NIBBLE(nib, bufptr);
|
|
proto_tree_add_text(tree, tvb, NIBHI(nib,1), "Control Header: %d", nibble);
|
|
nib++;
|
|
if ((nibble & 1) == 1) {
|
|
nibble = NIB_NIBBLE(nib, bufptr);
|
|
proto_tree_add_text(tree, tvb, NIBHI(nib,1), "Num SDMA Layers: %d", (nibble >> 2) & 0x3);
|
|
/* Bit padding */
|
|
if ((nib*4)+2 < (offset+length)*4) {
|
|
len = ((offset + length - nib) * 4) - 2;
|
|
proto_tree_add_text(tree, tvb, BITHI(nib*4, len), "Reserved bits");
|
|
}
|
|
} else {
|
|
/* Nibble padding */
|
|
if (nib < offset+length) {
|
|
len = (offset + length) - nib;
|
|
proto_tree_add_text(tree, tvb, NIBHI(nib,len), "Reserved bits");
|
|
}
|
|
}
|
|
return (length + 1);
|
|
}
|
|
|
|
gint Dedicated_MIMO_DL_Control_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* offset of IE in bits, length is variable */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint mci, cqi, cmi, matrix = 0, pad, CQICH_num, mimo_mode;
|
|
gint j;
|
|
|
|
bit = offset;
|
|
|
|
/* 8.4.5.3.21 table 286t */
|
|
ti = proto_tree_add_text(diuc_tree, tvb, BITHI(bit, 1), "Dedicated MIMO DL Control IE");
|
|
tree = proto_item_add_subtree(ti, ett_286t);
|
|
|
|
XBIT(length, 5, "Length (nibbles)");
|
|
XBIT(mci, 1, "Control Header (MIMO Control Info)");
|
|
XBIT(cqi, 1, "Control Header (CQI Control Info)");
|
|
XBIT(cmi, 1, "Control Header (Closed MIMO Control Info)");
|
|
XBIT(N_layer, 2, "N_layer");
|
|
|
|
/* MIMO Control Info */
|
|
if (mci == 1) {
|
|
XBIT(matrix, 2, "Matrix");
|
|
if (STC_Zone_Dedicated_Pilots == 1) {
|
|
XBIT(data, 2, "Num_Beamformed_Streams");
|
|
}
|
|
}
|
|
|
|
/* CQICH Control Info */
|
|
if (cqi == 1) {
|
|
CQICH_num = 0;
|
|
XBIT(data, 3, "Period");
|
|
XBIT(data, 3, "Frame Offset");
|
|
XBIT(data, 4, "Duration");
|
|
for (j = 0; j < N_layer; j++) {
|
|
XBIT(data, 6, "Allocation Index");
|
|
}
|
|
XBIT(CQICH_num, 2, "CQICH_Num");
|
|
for (j = 0; j < CQICH_num; j++) {
|
|
XBIT(data, 3, "Feedback type");
|
|
XBIT(data, 6, "Allocation index");
|
|
}
|
|
}
|
|
|
|
/* Closed MIMO Control Info */
|
|
if (cmi == 1) {
|
|
if (mci == 1) {
|
|
mimo_mode = matrix;
|
|
} else {
|
|
mimo_mode = STC_Zone_Matrix;
|
|
}
|
|
if (mimo_mode == 0 || mimo_mode == 1) {
|
|
XBIT(data, 3, "Antenna Grouping Index");
|
|
} else if (mimo_mode == 2) {
|
|
XBIT(data, 2, "Num_stream");
|
|
XBIT(data, 3, "Antenna Selection Index");
|
|
} else if (mimo_mode == 3) {
|
|
XBIT(data, 2, "Num_stream");
|
|
XBIT(data, 6, "Codebook Precoding Index");
|
|
}
|
|
}
|
|
|
|
/* padding to nibble */
|
|
pad = BIT_PADDING(bit,4);
|
|
if(pad){
|
|
proto_tree_add_text(tree, tvb, BITHI(bit,pad), "Padding: %d bits", pad);
|
|
bit += pad;
|
|
}
|
|
|
|
return (bit - offset);
|
|
}
|
|
|
|
gint DL_HARQ_Chase_sub_burst_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* 8.4.5.3.21 DL_HARQ_Chase_sub_burst_IE */
|
|
/* offset of IE in nibbles, length is variable */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint nsub, ddci, dur, sbi, res, diuc, rci, ind, per, ofs;
|
|
gint j;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
/* 8.4.5.3.21 table 286m */
|
|
ti = proto_tree_add_text(diuc_tree, tvb, BITHI(bit, 4), "DL_HARQ_Chase_sub_burst_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286m);
|
|
|
|
XBIT(nsub, 4, "N sub burst[ISI]");
|
|
XBIT(data, 4, "N ACK channel");
|
|
|
|
for (j = 0; j < nsub; j++) {
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type);
|
|
XBIT(dur, 10, "Duration");
|
|
XBIT(sbi, 1, "Sub-Burst DIUC Indicator");
|
|
XBIT(res, 1, "Reserved");
|
|
|
|
if (sbi == 1) {
|
|
XBIT(diuc, 4, "DIUC");
|
|
XBIT(rci, 2, "Repetition Coding Indication");
|
|
XBIT(res, 2, "Reserved");
|
|
}
|
|
|
|
XBIT(data, 4, "ACID");
|
|
XBIT(data, 1, "AI_SN");
|
|
XBIT(data, 1, "ACK disable");
|
|
XBIT(ddci, 2, "Dedicated DL Control Indicator");
|
|
|
|
if ((ddci & 1) == 1) {
|
|
XBIT(dur, 4, "Duration (d)");
|
|
if (dur != 0) {
|
|
XBIT(ind, 6, "Allocation Index");
|
|
XBIT(per, 3, "Period (p)");
|
|
XBIT(ofs, 3, "Frame offset");
|
|
}
|
|
}
|
|
|
|
if ((ddci & 2) == 2) {
|
|
bit += Dedicated_DL_Control_IE(tree, bufptr, BIT_TO_NIB(bit), length, tvb) * 4;
|
|
}
|
|
}
|
|
|
|
proto_tree_add_text(tree, tvb, BITHI(bit,4), "(DL HARQ Chase sub-burst IE)");
|
|
return (BIT_TO_NIB(bit) - offset);
|
|
}
|
|
|
|
gint DL_HARQ_IR_CTC_sub_burst_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* offset of IE in nibbles, length is variable */
|
|
gint bit;
|
|
guint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
proto_item *generic_item = NULL;
|
|
gint nsub, ddci, dur, ind, per, ofs;
|
|
gint j;
|
|
guint32 calculated_crc;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
/* 8.4.5.3.21 table 286n */
|
|
ti = proto_tree_add_text(diuc_tree, tvb, BITHI(bit, 4), "DL HARQ IR CTC sub-burst IE");
|
|
tree = proto_item_add_subtree(ti, ett_286n);
|
|
|
|
XBIT(nsub, 4, "N sub burst[ISI]");
|
|
XBIT(data, 4, "N ACK channel");
|
|
|
|
nsub += 1;
|
|
for (j = 0; j < nsub; j++) {
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type);
|
|
|
|
XBIT(data, 4, "N(EP)");
|
|
XBIT(data, 4, "N(SCH)");
|
|
XBIT(data, 2, "SPID");
|
|
XBIT(data, 4, "ACID");
|
|
XBIT(data, 1, "AI_SN");
|
|
XBIT(data, 1, "ACK disable");
|
|
XBIT(data, 2, "Reserved");
|
|
XBIT(ddci, 2, "Dedicated DL Control Indicator");
|
|
|
|
if ((ddci & 1) == 1) {
|
|
XBIT(dur, 4, "Duration (d)");
|
|
|
|
if (dur != 0) {
|
|
XBIT(ind, 6, "Allocation Index");
|
|
XBIT(per, 3, "Period (p)");
|
|
XBIT(ofs, 3, "Frame offset");
|
|
}
|
|
}
|
|
if ((ddci & 2) == 2) {
|
|
bit += Dedicated_DL_Control_IE(tree, bufptr, BIT_TO_NIB(bit), length, tvb);
|
|
}
|
|
}
|
|
|
|
if (include_cor2_changes)
|
|
{
|
|
/* CRC-16 is always appended */
|
|
data = BIT_BITS(bit, bufptr, 16);
|
|
generic_item = proto_tree_add_text(tree, tvb, BITHI(bit,16), "CRC-16: 0x%04x",data);
|
|
/* calculate the CRC */
|
|
calculated_crc = wimax_mac_calc_crc16((guint8 *)tvb_get_ptr(tvb, 0, BIT_TO_BYTE(bit)), BIT_TO_BYTE(bit));
|
|
if (data != calculated_crc)
|
|
{
|
|
proto_item_append_text(generic_item, " - incorrect! (should be: 0x%x)", calculated_crc);
|
|
}
|
|
bit += 16;
|
|
}
|
|
|
|
return (BIT_TO_NIB(bit) - offset);
|
|
}
|
|
|
|
gint DL_HARQ_IR_CC_sub_burst_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* offset of IE in nibbles, length is variable */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
proto_item *generic_item = NULL;
|
|
gint nsub, sbdi, ddci, dur, ind, per, ofs;
|
|
gint j;
|
|
guint16 calculated_crc;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
/* 8.4.5.3.21 table 286o */
|
|
ti = proto_tree_add_text(diuc_tree, tvb, BITHI(bit, 4), "DL HARQ IR CC sub-burst IE");
|
|
tree = proto_item_add_subtree(ti, ett_286o);
|
|
|
|
XBIT(nsub, 4, "N sub burst[ISI]");
|
|
XBIT(data, 4, "N ACK channel");
|
|
|
|
nsub += 1;
|
|
for (j = 0; j < nsub; j++) {
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type) / 4;
|
|
|
|
XBIT(data, 10, "Duration");
|
|
XBIT(sbdi, 1, "Sub-Burst DIUC Indicator");
|
|
XBIT(data, 1, "Reserved");
|
|
|
|
if (sbdi) {
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
XBIT(data, 2, "Reserved");
|
|
}
|
|
|
|
XBIT(data, 4, "ACID");
|
|
XBIT(data, 1, "AI_SN");
|
|
XBIT(data, 2, "SPID");
|
|
XBIT(data, 1, "ACK disable");
|
|
XBIT(ddci, 2, "Dedicated DL Control Indicator");
|
|
XBIT(data, 2, "Reserved");
|
|
|
|
if (ddci & 1) {
|
|
XBIT(dur, 4, "Duration (d)");
|
|
|
|
if (dur != 0) {
|
|
XBIT(ind, 6, "Allocation Index");
|
|
XBIT(per, 3, "Period (p)");
|
|
XBIT(ofs, 3, "Frame offset");
|
|
}
|
|
}
|
|
if ((ddci & 2) == 2) {
|
|
bit += Dedicated_DL_Control_IE(tree, bufptr, BIT_TO_NIB(bit), length, tvb);
|
|
}
|
|
}
|
|
|
|
if (include_cor2_changes)
|
|
{
|
|
/* CRC-16 is always appended */
|
|
data = BIT_BITS(bit, bufptr, 16);
|
|
generic_item = proto_tree_add_text(tree, tvb, BITHI(bit,16), "CRC-16: 0x%04x",data);
|
|
/* calculate the CRC */
|
|
calculated_crc = wimax_mac_calc_crc16((guint8 *)tvb_get_ptr(tvb, 0, BIT_TO_BYTE(bit)), BIT_TO_BYTE(bit));
|
|
if (data != calculated_crc)
|
|
{
|
|
proto_item_append_text(generic_item, " - incorrect! (should be: 0x%x)", calculated_crc);
|
|
}
|
|
bit += 16;
|
|
}
|
|
|
|
return (BIT_TO_NIB(bit) - offset);
|
|
}
|
|
|
|
gint MIMO_DL_Chase_HARQ_sub_burst_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* offset of IE in nibbles, length is variable */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
proto_item *generic_item = NULL;
|
|
gint nsub, mui, dci, akd;
|
|
gint i, j;
|
|
guint16 calculated_crc;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
/* 8.4.5.3.21 table 286p */
|
|
ti = proto_tree_add_text(diuc_tree, tvb, BITHI(bit, 1), "MIMO DL Chase HARQ sub-burst IE");
|
|
tree = proto_item_add_subtree(ti, ett_286p);
|
|
|
|
XBIT(nsub, 4, "N sub burst[ISI]");
|
|
XBIT(data, 6, "N ACK channel");
|
|
|
|
nsub += 1;
|
|
for (j = 0; j < nsub; j++) {
|
|
XBIT(mui, 1, "MU Indicator");
|
|
XBIT(dci, 1, "Dedicated MIMO DL Control Indicator");
|
|
XBIT(akd, 1, "ACK Disable");
|
|
if (mui == 0) {
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type);
|
|
}
|
|
if (dci == 1) {
|
|
bit += Dedicated_MIMO_DL_Control_IE(tree, bufptr, bit, length, tvb);
|
|
}
|
|
XBIT(data, 10, "Duration");
|
|
for (i = 0; i < N_layer; i++) {
|
|
if (mui == 1) {
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type);
|
|
}
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
if (akd == 0) {
|
|
XBIT(data, 4, "ACID");
|
|
XBIT(data, 1, "AI_SN");
|
|
}
|
|
}
|
|
}
|
|
/* Padding to nibble */
|
|
data = BIT_PADDING(bit, 4);
|
|
if (data) {
|
|
proto_tree_add_text(tree, tvb, BITHI(bit,data), "Padding: %d bits", data);
|
|
bit += data;
|
|
}
|
|
|
|
if (include_cor2_changes)
|
|
{
|
|
/* CRC-16 is always appended */
|
|
data = BIT_BITS(bit, bufptr, 16);
|
|
generic_item = proto_tree_add_text(tree, tvb, BITHI(bit,16), "CRC-16: 0x%04x",data);
|
|
/* calculate the CRC */
|
|
calculated_crc = wimax_mac_calc_crc16((guint8 *)tvb_get_ptr(tvb, 0, BIT_TO_BYTE(bit)), BIT_TO_BYTE(bit));
|
|
if (data != calculated_crc)
|
|
{
|
|
proto_item_append_text(generic_item, " - incorrect! (should be: 0x%x)", calculated_crc);
|
|
}
|
|
bit += 16;
|
|
}
|
|
|
|
return (BIT_TO_NIB(bit) - offset);
|
|
}
|
|
|
|
gint MIMO_DL_IR_HARQ_sub_burst_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* offset of IE in nibbles, length is variable */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
proto_item *generic_item = NULL;
|
|
gint nsub, mui, dci, akd;
|
|
gint i, j;
|
|
guint16 calculated_crc;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
/* 8.4.5.3.21 table 286q */
|
|
ti = proto_tree_add_text(diuc_tree, tvb, BITHI(bit, 4), "MIMO DL IR HARQ sub-burst IE");
|
|
tree = proto_item_add_subtree(ti, ett_286q);
|
|
|
|
XBIT(nsub, 4, "N sub burst[ISI]");
|
|
XBIT(data, 6, "N ACK channel");
|
|
|
|
nsub += 1;
|
|
for (j = 0; j < nsub; j++) {
|
|
XBIT(mui, 1, "MU Indicator");
|
|
XBIT(dci, 1, "Dedicated MIMO DL Control Indicator");
|
|
XBIT(akd, 1, "ACK Disable");
|
|
if (mui == 0) {
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type);
|
|
}
|
|
if (dci == 1) {
|
|
bit += Dedicated_MIMO_DL_Control_IE(tree, bufptr, bit, length, tvb);
|
|
}
|
|
XBIT(data, 4, "N(SCH)");
|
|
for (i = 0; i < N_layer; i++) {
|
|
if (mui == 1) {
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type);
|
|
}
|
|
XBIT(data, 4, "N(EP)");
|
|
if (akd) {
|
|
XBIT(data, 2, "SPID");
|
|
XBIT(data, 4, "ACID");
|
|
XBIT(data, 1, "AI_SN");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (include_cor2_changes)
|
|
{
|
|
/* CRC-16 is always appended */
|
|
data = BIT_BITS(bit, bufptr, 16);
|
|
generic_item = proto_tree_add_text(tree, tvb, BITHI(bit,16), "CRC-16: 0x%04x",data);
|
|
/* calculate the CRC */
|
|
calculated_crc = wimax_mac_calc_crc16((guint8 *)tvb_get_ptr(tvb, 0, BIT_TO_BYTE(bit)), BIT_TO_BYTE(bit));
|
|
if (data != calculated_crc)
|
|
{
|
|
proto_item_append_text(generic_item, " - incorrect! (should be: 0x%x)", calculated_crc);
|
|
}
|
|
bit += 16;
|
|
}
|
|
|
|
return (BIT_TO_NIB(bit) - offset);
|
|
}
|
|
|
|
gint MIMO_DL_IR_HARQ_for_CC_sub_burst_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* offset of IE in nibbles, length is variable */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
proto_item *generic_item = NULL;
|
|
gint nsub, mui, dci, akd;
|
|
gint i, j;
|
|
guint16 calculated_crc;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
/* 8.4.5.3.21 table 286r */
|
|
ti = proto_tree_add_text(diuc_tree, tvb, BITHI(bit, 1), "MIMO DL IR HARQ for CC sub-burst IE");
|
|
tree = proto_item_add_subtree(ti, ett_286r);
|
|
|
|
XBIT(nsub, 4, "N sub burst[ISI]");
|
|
XBIT(data, 6, "N ACK channel");
|
|
|
|
nsub += 1;
|
|
for (j = 0; j < nsub; j++) {
|
|
XBIT(mui, 1, "MU Indicator");
|
|
XBIT(dci, 1, "Dedicated MIMO DL Control Indicator");
|
|
XBIT(akd, 1, "ACK Disable");
|
|
if (mui == 0) {
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type);
|
|
}
|
|
if (dci == 1) {
|
|
bit += Dedicated_MIMO_DL_Control_IE(tree, bufptr, bit, length, tvb);
|
|
}
|
|
XBIT(data, 10, "Duration");
|
|
for (i = 0; i < N_layer; i++) {
|
|
if (mui == 1) {
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type);
|
|
}
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
if (akd == 0) {
|
|
XBIT(data, 4, "ACID");
|
|
XBIT(data, 1, "AI_SN");
|
|
XBIT(data, 2, "SPID");
|
|
}
|
|
}
|
|
}
|
|
|
|
if (include_cor2_changes)
|
|
{
|
|
/* CRC-16 is always appended */
|
|
data = BIT_BITS(bit, bufptr, 16);
|
|
generic_item = proto_tree_add_text(tree, tvb, BITHI(bit,16), "CRC-16: 0x%04x",data);
|
|
/* calculate the CRC */
|
|
calculated_crc = wimax_mac_calc_crc16((guint8 *)tvb_get_ptr(tvb, 0, BIT_TO_BYTE(bit)), BIT_TO_BYTE(bit));
|
|
if (data != calculated_crc)
|
|
{
|
|
proto_item_append_text(generic_item, " - incorrect! (should be: 0x%x)", calculated_crc);
|
|
}
|
|
bit += 16;
|
|
}
|
|
|
|
return (BIT_TO_NIB(bit) - offset);
|
|
}
|
|
|
|
gint MIMO_DL_STC_HARQ_sub_burst_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* offset of IE in nibbles, length is variable */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
proto_item *generic_item = NULL;
|
|
gint nsub, sbi, txc, akd, dmci;
|
|
gint j;
|
|
guint16 calculated_crc;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
/* 8.4.5.3.21 table 286s */
|
|
ti = proto_tree_add_text(diuc_tree, tvb, BITHI(bit, 1), "MIMO DL STC HARQ sub-burst IE");
|
|
tree = proto_item_add_subtree(ti, ett_286s);
|
|
|
|
XBIT(nsub, 4, "N sub burst[ISI]");
|
|
XBIT(data, 6, "N ACK channel");
|
|
|
|
nsub += 1;
|
|
for (j = 0; j < nsub; j++) {
|
|
XBIT(txc, 2, "TX Count");
|
|
XBIT(data, 10, "Duration");
|
|
XBIT(sbi, 1, "Sub-burst offset indication");
|
|
XBIT(data, 3, "Reserved");
|
|
if (sbi == 1) {
|
|
XBIT(data, 8, "Sub-burst offset");
|
|
}
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type);
|
|
XBIT(akd, 1, "ACK Disable");
|
|
if (txc == 0) {
|
|
XBIT(dmci, 1, "Dedicated MIMO DL Control Indicator");
|
|
if (dmci == 1) {
|
|
bit += Dedicated_MIMO_DL_Control_IE(tree, bufptr, bit, length, tvb);
|
|
}
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 2, "Repetition coding Indication");
|
|
}
|
|
if (akd == 0) {
|
|
XBIT(data, 4, "ACID");
|
|
}
|
|
}
|
|
|
|
if (include_cor2_changes)
|
|
{
|
|
/* CRC-16 is always appended */
|
|
data = BIT_BITS(bit, bufptr, 16);
|
|
generic_item = proto_tree_add_text(tree, tvb, BITHI(bit,16), "CRC-16: 0x%04x",data);
|
|
/* calculate the CRC */
|
|
calculated_crc = wimax_mac_calc_crc16((guint8 *)tvb_get_ptr(tvb, 0, BIT_TO_BYTE(bit)), BIT_TO_BYTE(bit));
|
|
if (data != calculated_crc)
|
|
{
|
|
proto_item_append_text(generic_item, " - incorrect! (should be: 0x%x)", calculated_crc);
|
|
}
|
|
bit += 16;
|
|
}
|
|
|
|
return (BIT_TO_NIB(bit) - offset);
|
|
}
|
|
|
|
/********************************************************************
|
|
* DL-MAP Extended-2 IEs
|
|
*******************************************************************/
|
|
|
|
gint MBS_MAP_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 0 */
|
|
/* 8.4.5.3.12 MBS_MAP_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint mde, dci, s3i;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "MBS_MAP_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286a);
|
|
|
|
XBIT(data, 4, "Extended-2 DIUC");
|
|
XBIT(data, 8, "Length");
|
|
|
|
XBIT(data, 7, "MBS Zone identifier");
|
|
XBIT(mde, 1, "Macro diversity enhanced");
|
|
if (mde == 1)
|
|
{
|
|
XBIT(data, 2, "Permutation");
|
|
XBIT(data, 5, "DL_PermBase");
|
|
XBIT(data, 2, "PRBS_ID");
|
|
XBIT(data, 7, "OFDMA_Symbol_Offset");
|
|
XBIT(dci, 1, "DIUC_change_indication");
|
|
XBIT(data, 3, "Reserved");
|
|
if (dci == 1) {
|
|
XBIT(data, 3, "Reserved");
|
|
XBIT(data, 3, "Boosting");
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 6, "No. Subchannels");
|
|
XBIT(data, 6, "No. OFDMA Symbols");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
}
|
|
} else {
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 16, "CID");
|
|
XBIT(data, 8, "OFDMA Symbols Offset");
|
|
XBIT(data, 6, "Subchannel offset");
|
|
XBIT(data, 3, "Boosting");
|
|
XBIT(s3i, 1, "SLC_3_indication");
|
|
XBIT(data, 6, "No. OFDMA Symbols");
|
|
XBIT(data, 6, "No. Subchannels");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
if (s3i == 1) {
|
|
XBIT(data, 8, "Next MBS_MAP_IE frame offset");
|
|
}
|
|
}
|
|
data = BIT_PADDING(bit, 4);
|
|
if (data) {
|
|
proto_tree_add_text(tree, tvb, BITHI(bit,data), "Padding: %d bits", data);
|
|
bit += data;
|
|
}
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint HO_Anchor_Active_DL_MAP_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 1 */
|
|
/* 8.4.5.3.14 [2] HO_Anchor_Active_DL-MAP_IE TODO 1.1 */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "HO_Anchor_Active_DL_MAP_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286c);
|
|
|
|
XNIB(data, 1, "Extended-2 DIUC");
|
|
XNIB(data, 2, "Length");
|
|
proto_tree_add_text(diuc_tree, tvb, NIBHI(nib, length-3), "(not implemented)");
|
|
return nib;
|
|
}
|
|
|
|
gint HO_Active_Anchor_DL_MAP_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 2 */
|
|
/* 8.4.5.3.15 HO_Active_Anchor_DL_MAP_IE TODO 1.1 */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "HO_Active_Anchor_DL_MAP_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286d);
|
|
|
|
XNIB(data, 1, "Extended-2 DIUC");
|
|
XNIB(data, 2, "Length");
|
|
proto_tree_add_text(diuc_tree, tvb, NIBHI(nib, length-3), "(not implemented)");
|
|
return nib;
|
|
}
|
|
|
|
gint HO_CID_Translation_MAP_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 3 */
|
|
/* 8.4.5.3.16 HO_CID_Translation_MAP_IE TODO 1.1 */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "CID_Translation_MAP_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286e);
|
|
|
|
XNIB(data, 1, "Extended-2 DIUC");
|
|
XNIB(data, 2, "Length");
|
|
proto_tree_add_text(diuc_tree, tvb, NIBHI(nib, length-3), "(not implemented)");
|
|
return nib;
|
|
}
|
|
|
|
gint MIMO_in_another_BS_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 4 */
|
|
/* 8.4.5.3.17 [2] MIMO_in_another_BS_IE (not implemented)*/
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "MIMO_in_another_BS_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286f);
|
|
|
|
XNIB(data, 1, "Extended-2 DIUC");
|
|
XNIB(data, 2, "Length");
|
|
proto_tree_add_text(diuc_tree, tvb, NIBHI(nib, length-3), "(not implemented)");
|
|
return nib;
|
|
}
|
|
|
|
gint Macro_MIMO_DL_Basic_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* dl-map extended-2 ie = 5 */
|
|
/* 8.4.5.3.18 [2] Macro-MIMO_DL_Basic_IE (not implemented) */
|
|
/* offset of tlv in nibbles, length of tlv in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "Macro_MIMO_DL_Basic_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286g);
|
|
|
|
XNIB(data, 1, "Extended-2 DIUC");
|
|
XNIB(data, 2, "Length");
|
|
proto_tree_add_text(diuc_tree, tvb, NIBHI(nib, length-3), "(not implemented)");
|
|
return nib;
|
|
}
|
|
|
|
gint Skip_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 6 */
|
|
/* 8.4.5.3.20.2 Skip_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "Skip_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286k);
|
|
|
|
XBIT(data, 4, "Extended-2 DIUC");
|
|
XBIT(data, 8, "Length");
|
|
|
|
XBIT(data, 1, "Mode");
|
|
XBIT(data, 7, "Reserved");
|
|
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint HARQ_DL_MAP_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 7 */
|
|
/* 8.4.5.3.21 [2] HARQ_DL_MAP_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint len, lastbit, rui, mode;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "HARQ_DL_MAP_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286l);
|
|
|
|
XBIT(data, 4, "Extended-2 DIUC");
|
|
XBIT(len, 8, "Length");
|
|
|
|
XBIT(RCID_Type, 2, "RCID_Type");
|
|
XBIT(data, 2, "Reserved");
|
|
|
|
/* while data remains */
|
|
length = NIB_TO_BIT(length);
|
|
/* Subtract extra nibble to be sure to stop in time. */
|
|
lastbit = bit + BYTE_TO_BIT(len) - 14 - 4;
|
|
while (bit < lastbit) {
|
|
XBIT(data, 3, "Boosting");
|
|
XBIT(rui, 1, "Region_ID use indicator");
|
|
|
|
if (rui == 0) {
|
|
XBIT(data, 8, "OFDMA symbol offset");
|
|
XBIT(data, 7, "Subchannel offset");
|
|
XBIT(data, 7, "Number of OFDMA symbols");
|
|
XBIT(data, 7, "Number of subchannels");
|
|
if (include_cor2_changes)
|
|
{
|
|
XBIT(data, 1, "Rectangular Sub-Burst Indicator"); /* Implemented: "Rectangular Sub-Burst Indicator" field added */
|
|
XBIT(data, 2, "Reserved"); /* and "Reserved" field resized from 3 bits to 2 bits */
|
|
}
|
|
else
|
|
{
|
|
XBIT(data, 3, "Reserved");
|
|
}
|
|
} else {
|
|
XBIT(data, 8, "Region_ID");
|
|
}
|
|
XBIT(mode, 4, "Mode");
|
|
XBIT(data, 8, "Sub-burst IE Length");
|
|
|
|
/* 8.4.5.3.21 */
|
|
/* length of these are variable, each returns length in nibbles */
|
|
if (mode == 0) {
|
|
bit += 4*DL_HARQ_Chase_sub_burst_IE(diuc_tree, bufptr, BIT_TO_NIB(bit), length, tvb);
|
|
} else if (mode == 1) {
|
|
bit += 4*DL_HARQ_IR_CTC_sub_burst_IE(diuc_tree, bufptr, BIT_TO_NIB(bit), length, tvb);
|
|
} else if (mode == 2) {
|
|
bit += 4*DL_HARQ_IR_CC_sub_burst_IE(diuc_tree, bufptr, BIT_TO_NIB(bit), length, tvb);
|
|
} else if (mode == 3) {
|
|
bit += 4*MIMO_DL_Chase_HARQ_sub_burst_IE(diuc_tree, bufptr, BIT_TO_NIB(bit), length, tvb);
|
|
} else if (mode == 4) {
|
|
bit += 4*MIMO_DL_IR_HARQ_sub_burst_IE(diuc_tree, bufptr, BIT_TO_NIB(bit), length, tvb);
|
|
} else if (mode == 5) {
|
|
bit += 4*MIMO_DL_IR_HARQ_for_CC_sub_burst_IE(diuc_tree, bufptr, BIT_TO_NIB(bit), length, tvb);
|
|
} else if (mode == 6) {
|
|
bit += 4*MIMO_DL_STC_HARQ_sub_burst_IE(diuc_tree, bufptr, BIT_TO_NIB(bit), length, tvb);
|
|
} else {
|
|
proto_tree_add_text(diuc_tree, tvb, BITHI(bit,1), "(reserved Mode)");
|
|
break; /* cannot continue */
|
|
}
|
|
}
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint HARQ_ACK_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 8 */
|
|
/* 8.4.5.3.22 HARQ_ACK IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint data;
|
|
gint nib;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "HARQ_ACK_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286u);
|
|
|
|
XNIB(data, 1, "Extended-2 DIUC");
|
|
XNIB(data, 2, "Length");
|
|
|
|
proto_tree_add_text(diuc_tree, tvb, NIBHI(nib,length-3), "(bitmap data)");
|
|
|
|
return nib;
|
|
}
|
|
|
|
gint Enhanced_DL_MAP_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 9 */
|
|
/* 8.4.5.3.23 Enhanced DL MAP IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint numass, n_cid;
|
|
gint i, n;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "Enhanced_DL-MAP_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286v);
|
|
|
|
XBIT(data, 4, "Extended-2 DIUC");
|
|
XBIT(data, 8, "Length");
|
|
|
|
XBIT(numass, 4, "Num_Assignment");
|
|
for (i = 0; i < numass; i++) {
|
|
if (INC_CID == 1) {
|
|
XBIT(n_cid, 8, "N_CID");
|
|
for (n = 0; n < n_cid; n++) {
|
|
XBIT(data, 16, "CID");
|
|
}
|
|
}
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 3, "Boosting");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
XBIT(data, 8, "Region_ID");
|
|
XBIT(data, 3, "Reserved");
|
|
}
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint Closed_loop_MIMO_DL_Enhanced_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 0xA */
|
|
/* 8.4.5.3.24 Closed-loop MIMO DL Enhanced IE (not implemented) */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "CL_MIMO_DL_Enhanced_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286w);
|
|
|
|
XNIB(data, 1, "Extended-2 DIUC");
|
|
XNIB(data, 2, "Length");
|
|
proto_tree_add_text(diuc_tree, tvb, NIBHI(nib, length-3), "(not implemented)");
|
|
return nib;
|
|
}
|
|
|
|
gint AAS_SDMA_DL_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended-2 IE = 0xE */
|
|
/* 8.4.5.3.26 AAS_SDMA_DL_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint num_region, num_users, pilot_pattern, encoding_mode, ackch_alloc, cqich_alloc;
|
|
gint aas_preamble = 1;
|
|
gint zone_permut = 0; /* TODO */
|
|
gint i, j;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "AAS_SDMA_DL_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286y);
|
|
|
|
XBIT(data, 4, "Extended-2 DIUC");
|
|
XBIT(data, 8, "Length");
|
|
|
|
XBIT(RCID_Type, 2, "RCID_Type");
|
|
XBIT(num_region, 4, "Num_Burst_Region");
|
|
XBIT(data, 2, "Reserved");
|
|
for (i = 0; i < num_region; i++) {
|
|
XBIT(data, 8, "OFDMA Symbol Offset");
|
|
if (zone_permut == 0) {
|
|
XBIT(data, 8, "Subchannel offset");
|
|
XBIT(data, 5, "No. OFDMA triple symbols");
|
|
XBIT(data, 6, "No. subchannels");
|
|
} else {
|
|
XBIT(data, 6, "Subchannel offset");
|
|
XBIT(data, 7, "No. OFDMA triple symbols");
|
|
XBIT(data, 6, "No. subchannels");
|
|
}
|
|
XBIT(num_users, 3, "Number of Users");
|
|
XBIT(data, 2, "Reserved");
|
|
for (j = 0; j < num_users; j++) {
|
|
bit += RCID_IE(tree, bufptr, bit, length, tvb, RCID_Type);
|
|
XBIT(encoding_mode, 2, "Encoding Mode");
|
|
XBIT(cqich_alloc, 1, "CQICH Allocation");
|
|
XBIT(ackch_alloc, 1, "ACKCH Allocation");
|
|
XBIT(pilot_pattern, 1, "Pilot Pattern Modifier");
|
|
if (aas_preamble) {
|
|
XBIT(data, 4, "Preamble Modifier Index");
|
|
}
|
|
if (pilot_pattern) {
|
|
XBIT(data, 2, "Pilot Pattern");
|
|
XBIT(data, 1, "Reserved");
|
|
} else {
|
|
XBIT(data, 3, "Reserved");
|
|
}
|
|
if (encoding_mode == 0x0) {
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
XBIT(data, 2, "Reserved");
|
|
}
|
|
if (encoding_mode == 0x1) {
|
|
if (ackch_alloc) {
|
|
XBIT(data, 5, "ACK CH Index");
|
|
} else {
|
|
XBIT(data, 1, "Reserved");
|
|
}
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
XBIT(data, 4, "ACID");
|
|
XBIT(data, 1, "AI_SN");
|
|
}
|
|
if (encoding_mode == 0x2) {
|
|
if (ackch_alloc) {
|
|
XBIT(data, 5, "ACK CH Index");
|
|
} else {
|
|
XBIT(data, 1, "Reserved");
|
|
}
|
|
XBIT(data, 4, "N(EP)");
|
|
XBIT(data, 4, "N(SCH)");
|
|
XBIT(data, 2, "SPID");
|
|
XBIT(data, 4, "ACID");
|
|
XBIT(data, 1, "AI_SN");
|
|
}
|
|
if (encoding_mode == 0x3) {
|
|
if (ackch_alloc) {
|
|
XBIT(data, 5, "ACK CH Index");
|
|
XBIT(data, 2, "Reserved");
|
|
} else {
|
|
XBIT(data, 3, "Reserved");
|
|
}
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
XBIT(data, 2, "SPID");
|
|
XBIT(data, 4, "ACID");
|
|
XBIT(data, 1, "AI_SN");
|
|
}
|
|
if (cqich_alloc) {
|
|
XBIT(data, 6, "Allocation Index");
|
|
XBIT(data, 3, "Period (p)");
|
|
XBIT(data, 3, "Frame offset");
|
|
XBIT(data, 4, "Duration (d)");
|
|
}
|
|
}
|
|
}
|
|
data = BIT_PADDING(bit,4);
|
|
/* Should this be an optional field? Or do we want it, even if it has a length of zero? */
|
|
proto_tree_add_text(tree, tvb, BITHI(bit,data), "Padding: %d bits", data);
|
|
bit += data;
|
|
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
|
|
|
|
/********************************************************************
|
|
* DL-MAP Extended IEs
|
|
*******************************************************************/
|
|
|
|
gint Channel_Measurement_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 0 */
|
|
/* 8.4.5.3.5 [1] Channel_Measurement_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "Channel_Measurement_IE");
|
|
tree = proto_item_add_subtree(ti, ett_280);
|
|
|
|
XNIB(data, 1, "Extended DIUC");
|
|
XNIB(data, 1, "Length");
|
|
|
|
XNIB(data, 2, "Channel Nr");
|
|
XNIB(data, 2, "OFDMA Symbol Offset");
|
|
data = NIB_WORD(nib, bufptr);
|
|
proto_tree_add_text(tree, tvb, NIBHI(nib,4), "CID: %d", data);
|
|
nib += 4;
|
|
return nib;
|
|
}
|
|
|
|
gint STC_Zone_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 1 */
|
|
/* 8.4.5.3.4 STC_Zone_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
/* set globals: STC_Zone_Dedicated_Pilots, STC_Zone_Matrix
|
|
* used in 8.4.5.3.21.1 Dedicated MIMO Control IE 286t */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "STC_Zone_IE");
|
|
tree = proto_item_add_subtree(ti, ett_279);
|
|
|
|
XBIT(data, 4, "Extended DIUC");
|
|
XBIT(data, 4, "Length");
|
|
|
|
XBIT(data, 8, "OFDMA Symbol Offset");
|
|
XBIT(data, 2, "Permutations");
|
|
XBIT(data, 1, "Use All SC indicator");
|
|
XBIT(data, 2, "STC");
|
|
XBIT(STC_Zone_Matrix, 2, "Matrix indicator");
|
|
XBIT(data, 5, "DL_PermBase");
|
|
XBIT(data, 2, "PRBS_ID");
|
|
XBIT(data, 2, "AMC type");
|
|
XBIT(data, 1, "Midamble Presence");
|
|
XBIT(data, 1, "Midamble Boosting");
|
|
XBIT(data, 1, "2/3 antenna select");
|
|
XBIT(STC_Zone_Dedicated_Pilots, 1, "Dedicated Pilots");
|
|
XBIT(data, 4, "Reserved");
|
|
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint AAS_DL_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 2 */
|
|
/* 8.4.5.3.3 AAS_DL_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "AAS_DL_IE");
|
|
tree = proto_item_add_subtree(ti, ett_278);
|
|
|
|
XBIT(data, 4, "Extended DIUC");
|
|
XBIT(data, 4, "Length");
|
|
|
|
XBIT(data, 8, "OFDMA Symbol Offset");
|
|
XBIT(data, 3, "Permutation");
|
|
XBIT(data, 6, "DL_PermBase");
|
|
XBIT(data, 2, "Downlink_preamble_config");
|
|
XBIT(data, 1, "Preamble type");
|
|
XBIT(data, 2, "PRBS_ID");
|
|
XBIT(data, 1, "Diversity Map");
|
|
XBIT(data, 1, "Reserved");
|
|
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint Data_location_in_another_BS_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 3 */
|
|
/* 8.4.5.3.6 Data_location_in_another_BS_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "Data location in another BS IE");
|
|
tree = proto_item_add_subtree(ti, ett_281);
|
|
|
|
XBIT(data, 4, "Extended DIUC");
|
|
XBIT(data, 4, "Length");
|
|
|
|
XBIT(data, 2, "Segment");
|
|
XBIT(data, 6, "Used subchannels");
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 3, "Frame Advance");
|
|
XBIT(data, 1, "Reserved");
|
|
XBIT(data, 8, "OFDMA Symbol Offset");
|
|
XBIT(data, 6, "Subchannel Offset");
|
|
XBIT(data, 3, "Boosting");
|
|
XBIT(data, 7, "Preamble Index");
|
|
XBIT(data, 8, "No. OFDMA Symbols");
|
|
XBIT(data, 6, "No. Subchannels");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
XBIT(data, 16, "CID");
|
|
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint CID_Switch_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 4 */
|
|
/* 8.4.5.3.7 [1] CID_Switch_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
INC_CID = INC_CID ? 0 : 1;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "CID_Switch_IE");
|
|
proto_item_append_text(ti, " (INC_CID = %d)",INC_CID);
|
|
tree = proto_item_add_subtree(ti, ett_282);
|
|
|
|
XNIB(data, 1, "Extended DIUC");
|
|
XNIB(data, 1, "Length");
|
|
|
|
return nib;
|
|
}
|
|
|
|
gint MIMO_DL_Basic_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 5 */
|
|
/* 8.4.5.3.8 MIMO_DL_Basic_IE (not implemented) */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "MIMO_DL_Basic_IE");
|
|
tree = proto_item_add_subtree(ti, ett_283);
|
|
|
|
XNIB(data, 1, "Extended-2 DIUC");
|
|
XNIB(data, 2, "Length");
|
|
proto_tree_add_text(diuc_tree, tvb, NIBHI(nib, length-2), "(not implemented)");
|
|
return nib;
|
|
}
|
|
|
|
gint MIMO_DL_Enhanced_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 6 */
|
|
/* 8.4.5.3.9 MIMO_DL_Enhanced_IE (not implemented) */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "MIMO_DL_Enhanced_IE");
|
|
tree = proto_item_add_subtree(ti, ett_284);
|
|
|
|
XNIB(data, 1, "Extended-2 DIUC");
|
|
XNIB(data, 2, "Length");
|
|
proto_tree_add_text(diuc_tree, tvb, NIBHI(nib, length-2), "(not implemented)");
|
|
return nib;
|
|
}
|
|
|
|
gint HARQ_Map_Pointer_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 7 */
|
|
/* 8.4.5.3.10 [2] HARQ_Map_Pointer_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint length_in_bits, rep, map, diuc, slots, idle, sleep, mask_len;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "HARQ_Map_Pointer_IE");
|
|
tree = proto_item_add_subtree(ti, ett_285);
|
|
|
|
XBIT(data, 4, "Extended DIUC");
|
|
XBIT(data, 4, "Length");
|
|
|
|
length_in_bits = NIB_TO_BIT(length-1);
|
|
while (bit < length_in_bits) {
|
|
XBIT(diuc, 4, "DIUC");
|
|
XBIT(slots, 8, "No. Slots");
|
|
XBIT(rep, 2, "Repetition Coding Indication");
|
|
XBIT(map, 2, "Map Version");
|
|
if (map == 2) {
|
|
XBIT(idle, 1, "Idle users");
|
|
XBIT(sleep, 1, "Sleep users");
|
|
XBIT(mask_len, 2, "CID Mask Length");
|
|
if (mask_len == 0) {
|
|
/* 12 bits */
|
|
proto_tree_add_text(diuc_tree, tvb, BITHI(bit,12), "CID Mask: 12 bits");
|
|
bit += 12;
|
|
} else if (mask_len == 1) {
|
|
/* 20 bits */
|
|
proto_tree_add_text(diuc_tree, tvb, BITHI(bit,20), "CID Mask: 20 bits");
|
|
bit += 20;
|
|
} else if (mask_len == 2) {
|
|
/* 36 bits */
|
|
proto_tree_add_text(diuc_tree, tvb, BITHI(bit,36), "CID Mask: 36 bits");
|
|
bit += 36;
|
|
} else if (mask_len == 3) {
|
|
/* 52 bits */
|
|
proto_tree_add_text(diuc_tree, tvb, BITHI(bit,52), "CID Mask: 52 bits");
|
|
bit += 52;
|
|
}
|
|
}
|
|
}
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint PHYMOD_DL_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 8 */
|
|
/* 8.4.5.3.11 PHYMOD_DL_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint pmt;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "PHYMOD_DL_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286);
|
|
|
|
XBIT(data, 4, "Extended DIUC");
|
|
XBIT(data, 4, "Length");
|
|
|
|
XBIT(pmt, 1, "Preamble Modifier Type");
|
|
if (pmt == 0) {
|
|
XBIT(data, 4, "Preamble frequency shift index");
|
|
} else {
|
|
XBIT(data, 4, "Preamble Time Shift Index");
|
|
}
|
|
XBIT(data, 1, "Pilot Pattern Modifier");
|
|
XBIT(data, 2, "Pilot Pattern Index");
|
|
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint Broadcast_Control_Pointer_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 0xA */
|
|
/* 8.4.5.3.25 Broadcast Control Pointer IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint skip;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "Broadcast Control Pointer IE");
|
|
tree = proto_item_add_subtree(ti, ett_286x);
|
|
|
|
XBIT(data, 4, "Extended DIUC");
|
|
XBIT(data, 4, "Length");
|
|
|
|
XBIT(data, 7, "DCD_UCD Transmission Frame");
|
|
XBIT(skip, 1, "Skip Broadcast_System_Update");
|
|
if (skip == 0) {
|
|
XBIT(data, 1, "Broadcast_System_Update_Type");
|
|
XBIT(data, 7, "Broadcast_System_Update_Transmission_Frame");
|
|
}
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint DL_PUSC_Burst_Allocation_in_Other_Segment_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 0xB */
|
|
/* 8.4.5.3.13 DL PUSC Burst Allocation in Other Segment IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "DL_PUSC_Burst_Allocation_in_Other_Segment_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286b);
|
|
|
|
XBIT(data, 4, "Extended DIUC");
|
|
XBIT(data, 4, "Length");
|
|
|
|
XBIT(data, 16, "CID");
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 2, "Segment");
|
|
XBIT(data, 3, "Boosting");
|
|
XBIT(data, 5, "IDcell");
|
|
XBIT(data, 5, "DL_PermBase");
|
|
XBIT(data, 2, "PRBS_ID");
|
|
XBIT(data, 2, "Repetition coding indication");
|
|
XBIT(data, 6, "Used Subchannels");
|
|
XBIT(data, 8, "OFDMA symbol offset");
|
|
XBIT(data, 1, "Reserved");
|
|
XBIT(data, 7, "# OFDMA symbols");
|
|
XBIT(data, 6, "Subchannel offset");
|
|
XBIT(data, 6, "# subchannels");
|
|
XBIT(data, 7, "Reserved");
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint PUSC_ASCA_Alloc_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 0xC */
|
|
/* 8.4.5.3.27 PUSC_ASCA_Alloc_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint bit;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
bit = NIB_TO_BIT(offset);
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "PUSC_ASCA_Alloc_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286z);
|
|
|
|
XBIT(data, 4, "Extended DIUC");
|
|
XBIT(data, 4, "Length");
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 12, "Short Basic CID");
|
|
XBIT(data, 8, "OFDMA Symbol offset");
|
|
XBIT(data, 6, "Subchannel offset");
|
|
XBIT(data, 7, "# OFDMA Symbols");
|
|
XBIT(data, 6, "# Symbols");
|
|
XBIT(data, 2, "Repetition Coding Information");
|
|
XBIT(data, 4, "Permutation ID");
|
|
XBIT(data, 7, "Reserved");
|
|
|
|
return BIT_TO_NIB(bit);
|
|
}
|
|
|
|
gint UL_interference_and_noise_level_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* DL-MAP Extended IE = 0xF */
|
|
/* 8.4.5.3.19 UL_interference_and_noise_level_IE */
|
|
/* offset of TLV in nibbles, length of TLV in nibbles */
|
|
gint nib;
|
|
gint data;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
gint bitmap;
|
|
|
|
nib = offset;
|
|
|
|
ti = proto_tree_add_text(diuc_tree, tvb, NIBHI(offset, length), "UL_interference_and_noise_level_IE");
|
|
tree = proto_item_add_subtree(ti, ett_286h);
|
|
|
|
XNIB(data, 1, "Extended DIUC");
|
|
XNIB(data, 1, "Length");
|
|
|
|
XNIB(bitmap, 1, "Bitmap");
|
|
|
|
if (bitmap & 0x01) {
|
|
XNIB(data, 2, "CQI/ACK/Periodic Ranging region NI");
|
|
}
|
|
if (bitmap & 0x02) {
|
|
XNIB(data, 2, "PUSC region NI");
|
|
}
|
|
if (bitmap & 0x04) {
|
|
XNIB(data, 2, "Optional PUSC region NI");
|
|
}
|
|
if (bitmap & 0x08) {
|
|
XNIB(data, 2, "AMC region NI");
|
|
}
|
|
if (bitmap & 0x10) {
|
|
XNIB(data, 2, "AAS region NI");
|
|
}
|
|
if (bitmap & 0x20) {
|
|
XNIB(data, 2, "Periodic Ranging region NI");
|
|
}
|
|
if (bitmap & 0x40) {
|
|
XNIB(data, 2, "Sounding region NI");
|
|
}
|
|
if (bitmap & 0x80) {
|
|
XNIB(data, 2, "MIMO region NI");
|
|
}
|
|
|
|
return nib;
|
|
}
|
|
|
|
/********************************************************************
|
|
* DL-MAP Plugin
|
|
*******************************************************************/
|
|
|
|
extern gint wimax_decode_ulmapc(proto_tree *base_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb);
|
|
|
|
/* Register Wimax Mac Payload Protocol and Dissector */
|
|
void proto_register_mac_mgmt_msg_dlmap(void)
|
|
{
|
|
if (proto_mac_mgmt_msg_dlmap_decoder == -1)
|
|
{
|
|
proto_mac_mgmt_msg_dlmap_decoder = proto_register_protocol (
|
|
"WiMax DLMAP/ULMAP Messages", /* name */
|
|
"WiMax DLMAP/ULMAP (map)", /* short name */
|
|
"map" /* abbrev */
|
|
);
|
|
|
|
proto_register_field_array(proto_mac_mgmt_msg_dlmap_decoder, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
}
|
|
|
|
gint dissect_dlmap_ie(proto_tree *ie_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb)
|
|
{
|
|
/* decode a single DL-MAP IE and return the
|
|
* length of the IE in nibbles
|
|
* offset = start of IE (nibbles)
|
|
* length = total length of bufptr (nibbles) */
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
|
|
gint nibble = offset;
|
|
gint diuc;
|
|
gint ext2_diuc;
|
|
gint len;
|
|
gint ext_diuc;
|
|
|
|
gint alt_format = 0;
|
|
guint data = 0;
|
|
gint i;
|
|
gint papr = 0;
|
|
gint ie_len = 9;
|
|
|
|
gint n_cid;
|
|
|
|
/* 8.4.5.3 DL-MAP IE format - table 275 */
|
|
diuc = NIB_NIBBLE(nibble, bufptr);
|
|
if (diuc == 14)
|
|
{
|
|
/* 8.4.5.3.2.2 [2] Extended-2 DIUC dependent IE table 277b */
|
|
ext2_diuc = NIB_NIBBLE(1+nibble, bufptr);
|
|
len = NIB_BYTE(1+nibble+1, bufptr);
|
|
|
|
ti = proto_tree_add_uint(ie_tree, hf_dlmap_ie_diuc, tvb, NIBHI(nibble, 1+3+len*2), diuc);
|
|
proto_item_append_text(ti, " (Extended-2)");
|
|
tree = proto_item_add_subtree(ti, ett_277b);
|
|
nibble++;
|
|
|
|
len = 3 + BYTE_TO_NIB(len);
|
|
|
|
/* table 277c [2] */
|
|
switch (ext2_diuc)
|
|
{
|
|
case 0x00:
|
|
/* 8.4.5.3.12 MBS_MAP_IE */
|
|
nibble = MBS_MAP_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x01:
|
|
/* 8.4.5.3.14 HO_Anchor_Active_DL-MAP_IE */
|
|
nibble = HO_Anchor_Active_DL_MAP_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x02:
|
|
/* 8.4.5.3.15 HO_Active_Anchor_DL_MAP_IE */
|
|
nibble = HO_Active_Anchor_DL_MAP_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x03:
|
|
/* 8.4.5.3.16 HO_CID_Translation_MAP_IE */
|
|
nibble = HO_CID_Translation_MAP_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x04:
|
|
/* 8.4.5.3.17 MIMO_in_another_BS_IE */
|
|
nibble = MIMO_in_another_BS_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x05:
|
|
/* 8.4.5.3.18 Macro-MIMO_DL_Basic_IE */
|
|
nibble = Macro_MIMO_DL_Basic_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x06:
|
|
/* 8.4.5.3.20.2 Skip_IE */
|
|
nibble = Skip_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x07:
|
|
/* 8.4.5.3.21 HARQ_DL_MAP_IE */
|
|
nibble += HARQ_DL_MAP_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x08:
|
|
/* 8.4.5.3.22 HARQ_ACK IE */
|
|
nibble = HARQ_ACK_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x09:
|
|
/* 8.4.5.3.23 Enhanced DL MAP IE */
|
|
nibble = Enhanced_DL_MAP_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x0a:
|
|
/* 8.4.5.3.24 Closed-loop MIMO DL Enhanced IE */
|
|
nibble = Closed_loop_MIMO_DL_Enhanced_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x0b:
|
|
nibble = MIMO_DL_Basic_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x0c:
|
|
nibble = MIMO_DL_Enhanced_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
|
|
case 0x0e:
|
|
nibble = AAS_SDMA_DL_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(tree, tvb, NIBHI(nibble,len), "(reserved Extended-2 DIUC: %d)", ext2_diuc);
|
|
nibble += len;
|
|
break;
|
|
|
|
}
|
|
}
|
|
else if (diuc == 15)
|
|
{
|
|
/* 8.4.5.3.2.1 [1] Extended DIUC dependent IE - table 277 */
|
|
ext_diuc = NIB_NIBBLE(1+nibble, bufptr);
|
|
len = NIB_NIBBLE(1+nibble+1, bufptr);
|
|
|
|
ti = proto_tree_add_uint(ie_tree, hf_dlmap_ie_diuc, tvb, NIBHI(nibble, 1+2+len*2), diuc);
|
|
proto_item_append_text(ti, " (Extended)");
|
|
tree = proto_item_add_subtree(ti, ett_277);
|
|
nibble++;
|
|
|
|
len = 2 + BYTE_TO_NIB(len);
|
|
|
|
/* TODO 8.4.5.3.27 PUSC_ASCA_IE -- unspecified ExtDIUC? */
|
|
|
|
/* 8.4.5.3.2.1 table 277a */
|
|
switch (ext_diuc)
|
|
{
|
|
case 0x00:
|
|
/* 8.4.5.3.? Channel_Measurement_IE */
|
|
nibble = Channel_Measurement_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x01:
|
|
/* 8.4.5.3.4 STC_Zone_IE */
|
|
nibble = STC_Zone_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x02:
|
|
/* 8.4.5.3.3 AAS_DL_IE */
|
|
nibble = AAS_DL_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x03:
|
|
/* 8.4.5.3.6 Data_location_in_another_BS_IE */
|
|
nibble = Data_location_in_another_BS_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x04:
|
|
/* 8.4.5.3.7 CID_Switch_IE */
|
|
nibble = CID_Switch_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x07:
|
|
/* 8.4.5.3.10 HARQ_Map_Pointer_IE */
|
|
nibble = HARQ_Map_Pointer_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x08:
|
|
/* 8.4.5.3.11 PHYMOD_DL_IE */
|
|
nibble = PHYMOD_DL_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
|
|
case 0x0b:
|
|
/* 8.4.5.3.13 DL PUSC Burst Allocation in Other Segment IE */
|
|
nibble = DL_PUSC_Burst_Allocation_in_Other_Segment_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
case 0x0c:
|
|
nibble = PUSC_ASCA_Alloc_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
|
|
case 0x0f:
|
|
/* 8.4.5.3.19 UL_interference_and_noise_level_IE */
|
|
nibble = UL_interference_and_noise_level_IE(tree, bufptr, nibble, len, tvb);
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(tree, tvb, NIBHI(nibble,len), "(reserved Extended DIUC: %d)", ext_diuc);
|
|
nibble += len;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* Downlink IE */
|
|
alt_format = 0;
|
|
data = 0;
|
|
papr = 0;
|
|
ie_len = 9;
|
|
|
|
/* TODO: alt_format = 1 if (Permutation == 0x11) and (AMC type is 2x3 or 1x6) */
|
|
|
|
/* precalculate IE len for correct highlighting */
|
|
if (INC_CID && !sub_dl_ul_map) {
|
|
ie_len += 2 + (NIB_BYTE(nibble+1, bufptr) * 4);
|
|
}
|
|
|
|
/* DL-MAP_IE */
|
|
ti = proto_tree_add_uint(ie_tree, hf_dlmap_ie_diuc, tvb, NIBHI(nibble, ie_len), diuc);
|
|
tree = proto_item_add_subtree(ti, ett_275_1);
|
|
nibble += 1;
|
|
|
|
if (diuc == 13) {
|
|
/* 8.4.5.3.1 [1] Gap/PAPR Reduction */
|
|
papr = 1;
|
|
proto_item_append_text(ti, " (Gap/PAPR Reduction)");
|
|
}
|
|
|
|
|
|
if (INC_CID)
|
|
{
|
|
n_cid = NIB_BYTE(nibble, bufptr);
|
|
proto_tree_add_item(tree, hf_dlmap_ie_ncid, tvb, NIBHI(nibble,2), FALSE);
|
|
nibble += 2;
|
|
|
|
for (i = 0; i < n_cid; i++)
|
|
{
|
|
if (sub_dl_ul_map) {
|
|
/* RCID_IE 8.4.5.3 and 8.4.5.3.20.1, only part of SUB-DL-UL-MAP */
|
|
/* RCID_Type comes from 6.3.2.3.43.2 [2] Format_configuration_IE in Compact_DL-MAP_IE */
|
|
nibble += RCID_IE(tree, bufptr, nibble*4, length, tvb, RCID_Type) / 4;
|
|
} else {
|
|
proto_tree_add_item(tree, hf_dlmap_ie_cid, tvb, NIBHI(nibble,4), FALSE);
|
|
nibble += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
data = NIB_LONG(nibble, bufptr);
|
|
if (alt_format) {
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_offsym2, tvb, NIBHI(nibble, 8), data);
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_offsub2, tvb, NIBHI(nibble, 8), data);
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_boosting2, tvb, NIBHI(nibble, 8), data);
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_numsym2, tvb, NIBHI(nibble, 8), data);
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_numsub2, tvb, NIBHI(nibble, 8), data);
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_rep2, tvb, NIBHI(nibble, 8), data);
|
|
} else {
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_offsym, tvb, NIBHI(nibble, 8), data);
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_offsub, tvb, NIBHI(nibble, 8), data);
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_boosting, tvb, NIBHI(nibble, 8), data);
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_numsym, tvb, NIBHI(nibble, 8), data);
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_numsub, tvb, NIBHI(nibble, 8), data);
|
|
proto_tree_add_uint(tree, hf_dlmap_ie_rep, tvb, NIBHI(nibble, 8), data);
|
|
}
|
|
nibble += 8;
|
|
}
|
|
|
|
/* length in nibbles */
|
|
return (nibble - offset);
|
|
}
|
|
|
|
|
|
void dissect_mac_mgmt_msg_dlmap_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *base_tree)
|
|
{
|
|
/* 6.3.2.3.2 [2] DL-MAP table 16 */
|
|
guint offset = 0;
|
|
gint length, nib, pad;
|
|
proto_item *ti = NULL;
|
|
proto_tree *dlmap_tree = NULL;
|
|
proto_tree *ie_tree = NULL;
|
|
proto_tree *phy_tree = NULL;
|
|
gint tvb_len = tvb_reported_length(tvb);
|
|
const guint8 *bufptr = tvb_get_ptr(tvb, offset, tvb_len);
|
|
|
|
UNREFERENCED_PARAMETER(pinfo);
|
|
|
|
INC_CID = 0;
|
|
|
|
/* add protocol */
|
|
ti = proto_tree_add_protocol_format(base_tree, proto_mac_mgmt_msg_dlmap_decoder, tvb, offset, tvb_len, "DL-MAP (%u bytes)", tvb_len);
|
|
dlmap_tree = proto_item_add_subtree(ti, ett_dlmap);
|
|
|
|
/* Decode and display the DL-MAP */
|
|
proto_tree_add_item(dlmap_tree, hf_dlmap_message_type, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
/* PHY Synchronization Field 8.4.5.1 */
|
|
{
|
|
ti = proto_tree_add_text(dlmap_tree, tvb, offset, 4, "Phy Synchronization Field");
|
|
phy_tree = proto_item_add_subtree(ti, ett_275_phy);
|
|
proto_tree_add_item(phy_tree, hf_dlmap_phy_fdur, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
proto_tree_add_item(phy_tree, hf_dlmap_phy_fnum, tvb, offset, 3, FALSE);
|
|
offset += 3;
|
|
}
|
|
proto_tree_add_item(dlmap_tree, hf_dlmap_dcd, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
proto_tree_add_item(dlmap_tree, hf_dlmap_bsid, tvb, offset, 6, FALSE);
|
|
offset += 6;
|
|
proto_tree_add_item(dlmap_tree, hf_dlmap_ofdma_sym, tvb, offset, 1, FALSE);
|
|
offset++;
|
|
|
|
/* DL-MAP IEs */
|
|
length = tvb_len - offset; /* remaining length in bytes */
|
|
ti = proto_tree_add_text(dlmap_tree, tvb, offset, length, "DL-MAP IEs (%d bytes)", length);
|
|
ie_tree = proto_item_add_subtree(ti, ett_dlmap_ie);
|
|
|
|
length = BYTE_TO_NIB(length); /* convert length to nibbles */
|
|
|
|
nib = BYTE_TO_NIB(offset);
|
|
while (nib < ((tvb_len*2)-1)) {
|
|
nib += dissect_dlmap_ie(ie_tree, bufptr, nib, tvb_len * 2, tvb);
|
|
}
|
|
pad = NIB_PADDING(nib);
|
|
if (pad) {
|
|
proto_tree_add_text(dlmap_tree, tvb, NIBHI(nib,1), "Padding nibble");
|
|
nib++;
|
|
}
|
|
}
|
|
|
|
gint wimax_decode_dlmapc(tvbuff_t *tvb, packet_info *pinfo, proto_tree *base_tree)
|
|
{
|
|
/* 8.4.5.6.1 [2] Compressed DL-MAP */
|
|
/* decode a compressed dl-map and return the length in bytes; */
|
|
/* if there is a compressed ul-map, also decode that and include in the length */
|
|
guint offset = 0;
|
|
proto_item *ti = NULL;
|
|
proto_item *generic_item = NULL;
|
|
proto_tree *tree = NULL;
|
|
proto_tree *ie_tree = NULL;
|
|
gint ulmap_appended;
|
|
guint length, lennib, pad;
|
|
guint mac_len, dl_ie_count;
|
|
guint tvb_len = tvb_reported_length(tvb);
|
|
const guint8 * bufptr = tvb_get_ptr(tvb, offset, tvb_len);
|
|
guint nib = 0;
|
|
guint32 mac_crc, calculated_crc;
|
|
|
|
/* update the info column */
|
|
if (check_col(pinfo->cinfo, COL_INFO))
|
|
{
|
|
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "Compressed DL-MAP");
|
|
}
|
|
|
|
INC_CID = 0;
|
|
|
|
length = tvb_get_ntohs(tvb, offset) & 0x07FF; /* compressed map length is 11 bits */
|
|
mac_len = length;
|
|
lennib = BYTE_TO_NIB(length);
|
|
|
|
ulmap_appended = (tvb_get_guint8(tvb, offset) >> 4) & 1; /* UL MAP appended? */
|
|
|
|
/* display MAC Compressed DL-MAP and create subtree */
|
|
ti = proto_tree_add_protocol_format(base_tree, proto_mac_mgmt_msg_dlmap_decoder, tvb, offset, length, "Compressed DL-MAP (%u bytes)", length);
|
|
tree = proto_item_add_subtree(ti, ett_305);
|
|
|
|
/* decode dlmap fields */
|
|
proto_tree_add_item(tree, hf_dlmapc_compr, tvb, offset, 2, FALSE);
|
|
proto_tree_add_item(tree, hf_dlmapc_ulmap, tvb, offset, 2, FALSE);
|
|
proto_tree_add_item(tree, hf_dlmapc_rsv, tvb, offset, 2, FALSE);
|
|
proto_tree_add_item(tree, hf_dlmapc_len, tvb, offset, 2, FALSE);
|
|
proto_tree_add_item(tree, hf_dlmapc_sync, tvb, offset+2, 4, FALSE); /* PHY Synchronization (8.4.5.1) */
|
|
proto_tree_add_item(tree, hf_dlmap_dcd, tvb, offset+6, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_dlmapc_opid, tvb, offset+7, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_dlmapc_secid, tvb, offset+8, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_dlmap_ofdma_sym, tvb, offset+9, 1, FALSE); /* 2005 */
|
|
proto_tree_add_item(tree, hf_dlmapc_count, tvb, offset+10,1, FALSE);
|
|
dl_ie_count = tvb_get_guint8(tvb, offset + 10);
|
|
offset += 11;
|
|
nib = BYTE_TO_NIB(offset);
|
|
|
|
/* DL-MAP IEs */
|
|
length -= 15; /* remaining length in bytes (11 bytes above + CRC at end) */
|
|
if (dl_ie_count) {
|
|
ti = proto_tree_add_text(tree, tvb, offset, length, "DL-MAP IEs (%d bytes)", length);
|
|
ie_tree = proto_item_add_subtree(ti, ett_dlmap_ie);
|
|
|
|
length = BYTE_TO_NIB(mac_len - sizeof(mac_crc) - 1); /* convert length to nibbles */
|
|
|
|
while (nib < length) {
|
|
nib += dissect_dlmap_ie(ie_tree, bufptr, nib, tvb_len * 2, tvb);
|
|
}
|
|
pad = NIB_PADDING(nib);
|
|
if (pad) {
|
|
proto_tree_add_text(tree, tvb, NIBHI(nib,1), "Padding nibble");
|
|
nib++;
|
|
}
|
|
}
|
|
|
|
if (ulmap_appended) {
|
|
/* subtract 8 from lennib (CRC) */
|
|
nib += wimax_decode_ulmapc(base_tree, bufptr, nib, lennib - 8, tvb);
|
|
}
|
|
|
|
/* CRC is always appended */
|
|
/* check the length */
|
|
if (MIN(tvb_len, tvb_reported_length(tvb)) >= mac_len)
|
|
{ /* get the CRC */
|
|
mac_crc = tvb_get_ntohl(tvb, mac_len - sizeof(mac_crc));
|
|
/* calculate the CRC */
|
|
calculated_crc = wimax_mac_calc_crc32((guint8 *)tvb_get_ptr(tvb, 0, mac_len - sizeof(mac_crc)), mac_len - sizeof(mac_crc));
|
|
/* display the CRC */
|
|
generic_item = proto_tree_add_item(base_tree, hf_mac_header_compress_dlmap_crc, tvb, mac_len - sizeof(mac_crc), sizeof(mac_crc), FALSE);
|
|
if (mac_crc != calculated_crc)
|
|
{
|
|
proto_item_append_text(generic_item, " - incorrect! (should be: 0x%x)", calculated_crc);
|
|
}
|
|
}
|
|
else
|
|
{ /* display error message */
|
|
proto_tree_add_protocol_format(base_tree, proto_mac_mgmt_msg_dlmap_decoder, tvb, 0, tvb_len, "CRC missing - the frame is too short (%u bytes)", tvb_len);
|
|
}
|
|
|
|
return mac_len;
|
|
}
|
|
|
|
extern gint dissect_ulmap_ie(proto_tree *ie_tree,
|
|
const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb);
|
|
extern gint wimax_decode_ulmap_reduced_aas(proto_tree *ie_tree,
|
|
const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb);
|
|
|
|
gint wimax_decode_sub_dl_ul_map(tvbuff_t *tvb, packet_info *pinfo, proto_tree *base_tree)
|
|
{
|
|
/* decode a SUB-DL-UL-MAP message 6.3.2.3.60 and return the length in bytes */
|
|
/* first three bits are 0x7, which following a compressed DL map indicates this message */
|
|
guint offset = 0;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
proto_tree *ie_tree = NULL;
|
|
proto_item *generic_item = NULL;
|
|
gint data;
|
|
gint i, numie;
|
|
guint16 calculated_crc;
|
|
|
|
gint length = tvb_reported_length(tvb);
|
|
const guint8 * bufptr = tvb_get_ptr(tvb, offset, length);
|
|
gint nib = 0;
|
|
gint lennib = BYTE_TO_NIB(length);
|
|
|
|
UNREFERENCED_PARAMETER(pinfo);
|
|
|
|
sub_dl_ul_map = 1; /* set flag */
|
|
|
|
ti = proto_tree_add_text(base_tree, tvb, NIBHI(nib,lennib-nib), "SUB-DL-UL-MAP");
|
|
tree = proto_item_add_subtree(ti, ett_109x);
|
|
|
|
data = NIB_WORD(nib,bufptr);
|
|
proto_tree_add_uint(tree, hf_109x_cmi, tvb, NIBHI(nib,4), data);
|
|
proto_tree_add_uint(tree, hf_109x_len, tvb, NIBHI(nib,4), data);
|
|
proto_tree_add_uint(tree, hf_109x_rcid, tvb, NIBHI(nib,4), data);
|
|
proto_tree_add_uint(tree, hf_109x_haoi, tvb, NIBHI(nib,4), data);
|
|
nib += 4;
|
|
|
|
/* HARQ ACK offset indicator */
|
|
if (data & 1) {
|
|
data = NIB_BYTE(nib,bufptr);
|
|
proto_tree_add_uint(tree, hf_109x_dl, tvb, NIBHI(nib,2), data);
|
|
nib += 2;
|
|
data = NIB_BYTE(nib,bufptr);
|
|
proto_tree_add_uint(tree, hf_109x_ul, tvb, NIBHI(nib,2), data);
|
|
nib += 2;
|
|
}
|
|
|
|
numie = NIB_BYTE(nib,bufptr);
|
|
proto_tree_add_uint(tree, hf_109x_dlie, tvb, NIBHI(nib,2), numie);
|
|
nib += 2;
|
|
|
|
/* DL-MAP IEs */
|
|
ti = proto_tree_add_text(tree, tvb, NIBHI(nib,1), "DL-MAP IEs");
|
|
ie_tree = proto_item_add_subtree(ti, ett_109x_dl);
|
|
for (i = 0; i < numie; i++) {
|
|
nib += dissect_dlmap_ie(ie_tree, bufptr, nib, lennib - nib, tvb);
|
|
}
|
|
|
|
data = NIB_BYTE(nib,bufptr);
|
|
proto_tree_add_uint(tree, hf_109x_symofs, tvb, NIBHI(nib,2), data);
|
|
nib += 2;
|
|
data = NIB_BYTE(nib,bufptr);
|
|
proto_tree_add_uint(tree, hf_109x_subofs, tvb, NIBHI(nib,2), data);
|
|
proto_tree_add_uint(tree, hf_109x_rsv, tvb, NIBHI(nib,2), data);
|
|
nib += 2;
|
|
|
|
/* UL-MAP IEs */
|
|
ti = proto_tree_add_text(tree, tvb, NIBHI(nib,lennib-nib), "UL-MAP IEs");
|
|
ie_tree = proto_item_add_subtree(ti, ett_109x_ul);
|
|
for ( ; nib < lennib - 1; ) {
|
|
nib += dissect_ulmap_ie(ie_tree, bufptr, nib, lennib - nib, tvb);
|
|
}
|
|
|
|
/* padding */
|
|
if (nib & 1) {
|
|
proto_tree_add_text(tree, tvb, NIBHI(nib,1), "Padding Nibble");
|
|
nib++;
|
|
}
|
|
|
|
/* CRC-16 is always appended */
|
|
data = NIB_WORD(nib, bufptr);
|
|
generic_item = proto_tree_add_text(tree, tvb, NIBHI(nib,4), "CRC-16: 0x%04x",data);
|
|
/* calculate the CRC */
|
|
calculated_crc = wimax_mac_calc_crc16((guint8 *)tvb_get_ptr(tvb, 0, NIB_TO_BYTE(nib)), NIB_TO_BYTE(nib));
|
|
if (data != calculated_crc)
|
|
{
|
|
proto_item_append_text(generic_item, " - incorrect! (should be: 0x%x)", calculated_crc);
|
|
}
|
|
nib += 4;
|
|
|
|
|
|
sub_dl_ul_map = 0; /* clear flag */
|
|
/* return length */
|
|
return length;
|
|
}
|
|
|
|
gint wimax_decode_dlmap_reduced_aas(tvbuff_t *tvb, packet_info *pinfo, proto_tree *base_tree)
|
|
{
|
|
/* 8.4.5.8.1 [2] Reduced AAS private DL-MAP */
|
|
/* if there is an appended UL-MAP, also decode that */
|
|
guint offset = 0;
|
|
proto_item *ti = NULL;
|
|
proto_tree *tree = NULL;
|
|
proto_item *generic_item = NULL;
|
|
gint ulmap_appended;
|
|
gint length;
|
|
gint tvb_len = tvb_reported_length(tvb);
|
|
const guint8 * bufptr = tvb_get_ptr(tvb, offset, tvb_len);
|
|
gint bit = 0;
|
|
guint data, pad, mult;
|
|
gint numie = 1;
|
|
gint i;
|
|
guint16 calculated_crc;
|
|
gint smcs,cidi,dcdi,phyi,cqci;
|
|
|
|
UNREFERENCED_PARAMETER(pinfo);
|
|
length = tvb_len;
|
|
|
|
/* display MAC Reduced_AAS_Private_DL-MAP and create subtree */
|
|
ti = proto_tree_add_protocol_format(base_tree, proto_mac_mgmt_msg_dlmap_decoder, tvb, offset, length, "Reduced_AAS_Private_DL-MAP");
|
|
tree = proto_item_add_subtree(ti, ett_308a);
|
|
|
|
VBIT(data, 3, hf_308a_cmi);
|
|
VBIT(ulmap_appended, 1, hf_308a_ulmap);
|
|
VBIT(data, 2, hf_308a_type);
|
|
VBIT(mult, 1, hf_308a_mult);
|
|
VBIT(data, 1, hf_308a_rsv);
|
|
|
|
if (mult) {
|
|
XBIT(numie, 8, "NUM IE");
|
|
}
|
|
|
|
for (i = 0; i < numie; i++) {
|
|
XBIT(data, 2, "Periodicity");
|
|
XBIT(cidi, 1, "CID Included");
|
|
XBIT(dcdi, 1, "DCD Count Included");
|
|
XBIT(phyi, 1, "PHY modification included");
|
|
XBIT(cqci, 1, "CQICH control indicator");
|
|
XBIT(data, 2, "Encoding Mode");
|
|
XBIT(smcs, 1, "Separate MCS Enabled");
|
|
|
|
if (smcs) {
|
|
XBIT(data,10, "Duration");
|
|
XBIT(data, 4, "DIUC");
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
}
|
|
if (cidi) {
|
|
XBIT(data,16, "CID");
|
|
}
|
|
if (cqci) {
|
|
XBIT(data, 6, "Allocation Index");
|
|
XBIT(data, 3, "Report Period");
|
|
XBIT(data, 3, "Frame Offset");
|
|
XBIT(data, 4, "Report Duration");
|
|
XBIT(data, 2, "CQI Measurement Type");
|
|
XBIT(data, 2, "Reserved");
|
|
}
|
|
if (dcdi) {
|
|
XBIT(data, 8, "DCD Count");
|
|
}
|
|
if (phyi) {
|
|
XBIT(data, 1, "Preamble Select");
|
|
XBIT(data, 4, "Preamble Shift Index");
|
|
XBIT(data, 1, "Pilot Pattern Modifier");
|
|
XBIT(data, 2, "Pilot Pattern Index");
|
|
}
|
|
XBIT(data, 3, "DL Frame Offset");
|
|
if (fusc) {
|
|
XBIT(data, 8, "Zone Symbol Offset");
|
|
}
|
|
XBIT(data, 8, "OFDMA Symbol Offset");
|
|
if (tusc) {
|
|
XBIT(data, 8, "Subchannel Offset");
|
|
XBIT(data, 5, "No. OFDMA triple symbol");
|
|
XBIT(data, 6, "No. subchannels");
|
|
} else {
|
|
XBIT(data, 6, "Subchannel Offset");
|
|
XBIT(data, 7, "No. OFDMA symbols");
|
|
XBIT(data, 6, "No. subchannels");
|
|
}
|
|
XBIT(data, 4, "DIUC/N(EP)");
|
|
if (harq) {
|
|
XBIT(data, 1, "DL HARQ ACK bitmap");
|
|
XBIT(data, 6, "ACK Allocation Index");
|
|
XBIT(data, 4, "ACID");
|
|
XBIT(data, 1, "AI_SN");
|
|
if (ir_type) {
|
|
XBIT(data, 4, "N(SCH)");
|
|
XBIT(data, 2, "SPID");
|
|
XBIT(data, 2, "Reserved");
|
|
}
|
|
}
|
|
XBIT(data, 2, "Repetition Coding Indication");
|
|
if (ulmap_appended) {
|
|
/* offset and length are in bits */
|
|
bit += wimax_decode_ulmap_reduced_aas(tree, bufptr, offset, length*8, tvb);
|
|
}
|
|
XBIT(data, 3, "Reserved");
|
|
}
|
|
|
|
/* padding */
|
|
pad = BIT_PADDING(bit,8);
|
|
if (pad) {
|
|
proto_tree_add_text(tree, tvb, BITHI(bit,pad), "Padding: %d bits",pad);
|
|
bit += pad;
|
|
}
|
|
|
|
/* CRC-16 is always appended */
|
|
data = BIT_BITS(bit, bufptr, 16);
|
|
generic_item = proto_tree_add_text(tree, tvb, BITHI(bit,16), "CRC-16: 0x%04x",data);
|
|
/* calculate the CRC */
|
|
calculated_crc = wimax_mac_calc_crc16((guint8 *)tvb_get_ptr(tvb, 0, BIT_TO_BYTE(bit)), BIT_TO_BYTE(bit));
|
|
if (data != calculated_crc)
|
|
{
|
|
proto_item_append_text(generic_item, " - incorrect! (should be: 0x%x)", calculated_crc);
|
|
}
|
|
bit += 16;
|
|
|
|
return BIT_TO_BYTE(bit) - offset;
|
|
}
|