/* msg_dlmap.c
* WiMax MAC Management DL-MAP Message decoder
*
* Copyright (c) 2007 by Intel Corporation.
*
* Author: Mike Harvey <michael.harvey@intel.com>
*
* $Id: msg_dlmap.c 23804 2007-12-08 01:22:22Z gerald $
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1999 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/* Include files */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "moduleinfo.h"
#include <glib.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include "crc.h"
#include "wimax_bits.h"
extern gint proto_wimax;
extern gboolean include_cor2_changes;
#define MAC_MGMT_MSG_DLMAP 2
#define XBIT(var, bits, desc) \
do { \
var = BIT_BITS(bit, bufptr, bits); \
proto_tree_add_text(tree, tvb, BITHI(bit, bits), desc ": %d", var); \
bit += bits; \
} while(0)
#define VBIT(var, bits, hf) \
do { \
var = BIT_BITS(bit, bufptr, bits); \
proto_tree_add_uint(tree, hf, tvb, BITHI(bit,bits), var); \
bit += bits; \
} while(0)
#define XNIB(var, nibs, desc) \
do { \
var = NIB_NIBS(nib, bufptr, nibs); \
proto_tree_add_text(tree, tvb, NIBHI(nib, nibs), desc ": %d", var); \
nib += nibs; \
} while(0)
gint harq = 0; /* 1 if HARQ enabled (TODO) */
gint fusc = 0; /* 1 if current zone permutation is FUSC or optional FUSC (TODO) */
gint tusc = 0; /* 1 if current zone permutation is AMC, TUSC1 or TUSC2 (TODO) */
gint ir_type = 0; /* reduced AAS map (TODO) */
gint RCID_Type = 0;
gint N_layer = 0;
gint STC_Zone_Dedicated_Pilots = 0;
gint STC_Zone_Matrix = 0;
gint INC_CID = 0;
gint sub_dl_ul_map = 0;
extern gint man_ofdma;
/* forward reference */
void dissect_mac_mgmt_msg_dlmap_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
gint proto_mac_mgmt_msg_dlmap_decoder = -1;
static gint ett_dlmap = -1;
static gint ett_dlmap_ie = -1;
static gint ett_dlmap_c_ie = -1;
static gint ett_109x = -1; /* SUB-DL-UL-MAP */
static gint ett_109x_dl = -1;
static gint ett_109x_ul = -1;
static gint ett_275_phy = -1;
static gint ett_275_1 = -1;
static gint ett_277 = -1;
static gint ett_277b = -1;
static gint ett_278 = -1;
static gint ett_279 = -1;
static gint ett_280 = -1;
static gint ett_281 = -1;
static gint ett_282 = -1;
static gint ett_283 = -1;
static gint ett_284 = -1;
static gint ett_285 = -1;
static gint ett_286 = -1;
static gint ett_286a = -1;
static gint ett_286b = -1;
static gint ett_286c = -1;
static gint ett_286d = -1;
static gint ett_286e = -1;
static gint ett_286f = -1;
static gint ett_286g = -1;
static gint ett_286h = -1;
static gint ett_286i = -1;
static gint ett_286j = -1;
static gint ett_286k = -1;
static gint ett_286l = -1;
static gint ett_286m = -1;
static gint ett_286n = -1;
static gint ett_286o = -1;
static gint ett_286p = -1;
static gint ett_286q = -1;
static gint ett_286r = -1;
static gint ett_286s = -1;
static gint ett_286t = -1;
static gint ett_286u = -1;
static gint ett_286v = -1;
static gint ett_286w = -1;
static gint ett_286x = -1;
static gint ett_286y = -1;
static gint ett_286z = -1;
static gint ett_305 = -1;
static gint ett_305_dl = -1;
static gint ett_308a = -1;
/* Setup protocol subtree array */
static gint *ett[] =
{
&ett_dlmap,
&ett_dlmap_ie,
&ett_dlmap_c_ie,
&ett_109x,
&ett_109x_dl,
&ett_109x_ul,
&ett_275_phy,
&ett_275_1,
&ett_277,
&ett_277b,
&ett_278,
&ett_279,
&ett_280,
&ett_281,
&ett_282,
&ett_283,
&ett_284,
&ett_285,
&ett_286,
&ett_286a,
&ett_286b,
&ett_286c,
&ett_286d,
&ett_286e,
&ett_286f,
&ett_286g,
&ett_286h,
&ett_286i,
&ett_286j,
&ett_286k,
&ett_286l,
&ett_286m,
&ett_286n,
&ett_286o,
&ett_286p,
&ett_286q,
&ett_286r,
&ett_286s,
&ett_286t,
&ett_286u,
&ett_286v,
&ett_286w,
&ett_286x,
&ett_286y,
&ett_286z,
&ett_305,
&ett_305_dl,
&ett_308a,
};
#define DCD_DOWNLINK_BURST_PROFILE 1
#define DCD_BS_EIRP 2
#define DCD_FRAME_DURATION 3
#define DCD_PHY_TYPE 4
#define DCD_POWER_ADJUSTMENT 5
#define DCD_CHANNEL_NR 6
#define DCD_TTG 7
#define DCD_RTG 8
#define DCD_RSS 9
#define DCD_CHANNEL_SWITCH_FRAME_NR 10
#define DCD_FREQUENCY 12
#define DCD_BS_ID 13
#define DCD_FRAME_DURATION_CODE 14
#define DCD_FRAME_NR 15
#define DCD_SIZE_CQICH_ID 16
#define DCD_H_ARQ_ACK_DELAY 17
#define DCD_MAC_VERSION 148
#define DCD_RESTART_COUNT 154
#define DCD_BURST_FREQUENCY 1
#define DCD_BURST_FEC_CODE_TYPE 150
#define DCD_BURST_DIUC_EXIT_THRESHOLD 151
#define DCD_BURST_DIUC_ENTRY_THRESHOLD 152
#define DCD_BURST_TCS_ENABLE 153
#define DCD_TLV_T_541_TYPE_FUNCTION_ACTION 1
#define DCD_TLV_T542_TRIGGER_VALUE 2
#define DCD_TLV_T_543_TRIGGER_AVERAGING_DURATION 3
#define DCD_TLV_T_19_PERMUTATION_TYPE_FOR_BROADCAST_REGION_IN_HARQ_ZONE 19
#define DCD_TLV_T_20_MAXIMUM_RETRANSMISSION 20
#define DCD_TLV_T_21_DEFAULT_RSSI_AND_CINR_AVERAGING_PARAMETER 21
#define DCD_TLV_T_22_DL_AMC_ALLOCATED_PHYSICAL_BANDS_BITMAP 22
#define DCD_TLV_T_31_H_ADD_THRESHOLD 31
#define DCD_TLV_T_32_H_DELETE_THRESHOLD 32
#define DCD_TLV_T_33_ASR 33
#define DCD_TLV_T_34_DL_REGION_DEFINITION 34
#define DCD_TLV_T_35_PAGING_GROUP_ID 35
#define DCD_TLV_T_36_TUSC1_PERMUTATION_ACTIVE_SUBCHANNELS_BITMAP 36
#define DCD_TLV_T_37_TUSC2_PERMUTATION_ACTIVE_SUBCHANNELS_BITMAP 37
#define DCD_TLV_T_45_PAGING_INTERVAL_LENGTH 45
#define DCD_TLV_T_50_HO_TYPE_SUPPORT 50
#define DCD_TLV_T_51_HYSTERSIS_MARGIN 51
#define DCD_TLV_T_52_TIME_TO_TRIGGER_DURATION 52
#define DCD_TLV_T_54_TRIGGER 54
#define DCD_TLV_T_153_DOWNLINK_BURST_PROFILE_FOR_MULTIPLE_FEC_TYPES 153
#define DL_MAP_NCT_PMP 0
#define DL_MAP_NCT_DM 1
#define DL_MAP_NCT_PTP 2
/* NCT messages */
static const value_string nct_msgs[] =
{
{ DL_MAP_NCT_PMP, "PMP" },
{ DL_MAP_NCT_PMP, "DM" },
{ DL_MAP_NCT_PMP, "PTP" },
{ 0, NULL }
};
/* Repetition Coding Indications */
static const value_string rep_msgs[] =
{
{ 0, "No Repetition Coding" },
{ 1, "Repetition Coding of 2 Used" },
{ 2, "Repetition Coding of 4 Used" },
{ 3, "Repetition Coding of 6 Used" },
{ 0, NULL }
};
/* DL Frame Prefix Coding Indications */
static const value_string boost_msgs[] =
{
{ 0, "Normal (not boosted)" },
{ 1, "+6dB" },
{ 2, "-6dB" },
{ 3, "+9dB" },
{ 4, "+3dB" },
{ 5, "-3dB" },
{ 6, "-9dB" },
{ 7, "-12dB" },
{ 0, NULL }
};
/* dl-map fields */
static gint hf_dlmap_message_type = -1;
static gint hf_dlmap_phy_fdur = -1;
static gint hf_dlmap_phy_fnum = -1;
static gint hf_dlmap_fch_expected = -1;
static gint hf_dlmap_dcd = -1;
static gint hf_dlmap_bsid = -1;
static gint hf_dlmap_ofdma_sym = -1;
static gint hf_dlmap_ie = -1;
static gint hf_dlmap_ie_diuc = -1;
static gint hf_dlmap_ie_ncid = -1;
static gint hf_dlmap_ie_cid = -1;
static gint hf_dlmap_ie_offsym = -1;
static gint hf_dlmap_ie_offsub = -1;
static gint hf_dlmap_ie_boosting = -1;
static gint hf_dlmap_ie_numsym = -1;
static gint hf_dlmap_ie_numsub = -1;
static gint hf_dlmap_ie_rep = -1;
static gint hf_dlmap_ie_offsym2 = -1;
static gint hf_dlmap_ie_offsub2 = -1;
static gint hf_dlmap_ie_boosting2 = -1;
static gint hf_dlmap_ie_numsym2 = -1;
static gint hf_dlmap_ie_numsub2 = -1;
static gint hf_dlmap_ie_rep2 = -1;
static gint hf_dlmap_xie_diuc = -1;
static gint hf_dlmap_xie_len = -1;
static gint hf_dlmapc_compr = -1;
static gint hf_dlmapc_ulmap = -1;
static gint hf_dlmapc_rsv = -1;
static gint hf_dlmapc_len = -1;
static gint hf_dlmapc_sync = -1;
static gint hf_dlmapc_opid = -1;
static gint hf_dlmapc_secid = -1;
static gint hf_dlmapc_count = -1;
static gint hf_109x_cmi = -1;
static gint hf_109x_len = -1;
static gint hf_109x_rcid = -1;
static gint hf_109x_haoi = -1;
static gint hf_109x_dl = -1;
static gint hf_109x_ul = -1;
static gint hf_109x_dlie = -1;
static gint hf_109x_symofs = -1;
static gint hf_109x_subofs = -1;
static gint hf_109x_rsv = -1;
static gint hf_308a_cmi = -1;
static gint hf_308a_ulmap = -1;
static gint hf_308a_type = -1;
static gint hf_308a_mult = -1;
static gint hf_308a_rsv = -1;
static gint hf_mac_header_compress_dlmap_crc = -1;
/* DL-MAP fields display */
static hf_register_info hf[] =
{
{
&hf_dlmap_message_type,
{
"MAC Management Message Type", "wmx.macmgtmsgtype.dlmap",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmap_bsid,
{
"Base Station ID", "wmx.dlmap.bsid",
FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmap_dcd,
{
"DCD Count", "wmx.dlmap.dcd",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmap_fch_expected,
{
"FCH Expected", "wmx.dlmap.fch_expected",
FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmap_ie,
{
"DL-MAP IE", "wmx.dlmap.ie",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmap_ie_boosting,
{
"Boosting", "wmx.dlmap.ie.boosting",
FT_UINT32, BASE_DEC, VALS(boost_msgs), 0x00038000, "", HFILL
}
},
{
&hf_dlmap_ie_boosting2,
{
"Boosting", "wmx.dlmap.ie.boosting",
FT_UINT32, BASE_DEC, VALS(boost_msgs), 0x0000E000, "", HFILL
}
},
{
&hf_dlmap_ie_cid,
{
"CID", "wmx.dlmap.ie.cid",
FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmap_ie_diuc,
{
"DIUC", "wmx.dlmap.ie.diuc",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmap_ie_ncid,
{
"N_CID", "wmx.dlmap.ie.ncid",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmap_ie_numsub,
{
"Number of Subchannels", "wmx.dlmap.ie.numsub",
FT_UINT32, BASE_DEC, NULL, 0x000000FC, "", HFILL
}
},
{
&hf_dlmap_ie_numsym,
{
"Number of OFDMA Symbols", "wmx.dlmap.ie.numsym",
FT_UINT32, BASE_DEC, NULL, 0x00007F00, "", HFILL
}
},
{
&hf_dlmap_ie_numsub2,
{
"Number of Subchannels", "wmx.dlmap.ie.numsub",
FT_UINT32, BASE_DEC, NULL, 0x000000FC, "", HFILL
}
},
{
&hf_dlmap_ie_numsym2,
{
"Number of OFDMA Symbols", "wmx.dlmap.ie.numsym",
FT_UINT32, BASE_DEC, NULL, 0x00001F00, "", HFILL
}
},
{
&hf_dlmap_ie_offsub,
{
"Subchannel Offset", "wmx.dlmap.ie.offsub",
FT_UINT32, BASE_DEC, NULL, 0x00FC0000, "", HFILL
}
},
{
&hf_dlmap_ie_offsym,
{
"OFDMA Symbol Offset", "wmx.dlmap.ie.offsym",
FT_UINT32, BASE_DEC, NULL, 0xFF000000, "", HFILL
}
},
/* alt ie format */
{
&hf_dlmap_ie_offsub2,
{
"Subchannel Offset", "wmx.dlmap.ie.offsub",
FT_UINT32, BASE_DEC, NULL, 0x00FF0000, "", HFILL
}
},
{
&hf_dlmap_ie_offsym2,
{
"OFDMA Symbol Offset", "wmx.dlmap.ie.offsym",
FT_UINT32, BASE_DEC, NULL, 0xFF000000, "", HFILL
}
},
{
&hf_dlmap_ie_rep,
{
"Repetition Coding Indication", "wmx.dlmap.ie.rep",
FT_UINT32, BASE_DEC, VALS(rep_msgs), 0x00000003, "", HFILL
}
},
{
&hf_dlmap_ie_rep2,
{
"Repetition Coding Indication", "wmx.dlmap.ie.rep",
FT_UINT32, BASE_DEC, VALS(rep_msgs), 0x00000003, "", HFILL
}
},
{
&hf_dlmap_ofdma_sym,
{
"Num OFDMA Symbols", "wmx.dlmap.ofdma_sym",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmap_phy_fdur,
{
"Frame Duration Code", "wmx.dlmap.phy_fdur",
FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL
}
},
{
&hf_dlmap_phy_fnum,
{
"Frame Number", "wmx.dlmap.phy_fnum",
FT_UINT24, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmapc_compr,
{
"Compressed map indicator", "wmx.dlmapc.compr",
FT_UINT16, BASE_DEC, NULL, 0xe000, "", HFILL
}
},
{
&hf_dlmapc_count,
{
"DL IE Count", "wmx.dlmapc.count",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmapc_len,
{
"Map message length", "wmx.dlmapc.len",
FT_UINT16, BASE_DEC, NULL, 0x07FF, "", HFILL
}
},
{
&hf_dlmapc_opid,
{
"Operator ID", "wmx.dlmapc.opid",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmapc_rsv,
{
"Reserved", "wmx.dlmapc.rsv",
FT_UINT16, BASE_DEC, NULL, 0x0800, "", HFILL
}
},
{
&hf_dlmapc_secid,
{
"Sector ID", "wmx.dlmapc.secid",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmapc_sync,
{
"PHY Synchronization Field", "wmx.dlmapc.sync",
FT_UINT32, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmapc_ulmap,
{
"UL-MAP appended", "wmx.dlmapc.ulmap",
FT_UINT16, BASE_DEC, NULL, 0x1000, "", HFILL
}
},
{
&hf_dlmap_xie_diuc,
{
"Extended DIUC", "wmx.dlmapc.xie_diuc",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dlmap_xie_len,
{
"Length", "wmx.dlmapc.xie_len",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_109x_cmi,
{
"SUB-DL-UL-MAP map indicator", "wmx.dlul.cmi",
FT_UINT16, BASE_DEC, NULL, 0xE000, "", HFILL
}
},
{
&hf_109x_dl,
{
"DL HARQ ACK offset", "wmx.dlul.dl",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_109x_dlie,
{
"DL IE Count", "wmx.dlul.dlie",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_109x_haoi,
{
"HARQ ACK offset indicator", "wmx.dlul.haoi",
FT_UINT16, BASE_DEC, NULL, 0x0001, "", HFILL
}
},
{
&hf_109x_len,
{
"Map message length - The length is limited to 735 bytes at most", "wmx.dlul.len",
FT_UINT16, BASE_DEC, NULL, 0x1FF8, "", HFILL
}
},
{
&hf_109x_rcid,
{
"RCID_Type", "wmx.dlul.rcid",
FT_UINT16, BASE_DEC, NULL, 0x0006, "", HFILL
}
},
{
&hf_109x_subofs,
{
"Subchannel offset", "wmx.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.", "wmx.dlul.symofs",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_109x_rsv,
{
"Reserved", "wmx.dlul.rsv",
FT_UINT8, BASE_DEC, NULL, 0x01, "", HFILL
}
},
{
&hf_109x_ul,
{
"UL HARQ ACK offset", "wmx.dlul.ul",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_308a_cmi,
{
"Compressed map indicator", "wmx.dlmap.reduced_aas_private.cmi",
FT_UINT8, BASE_DEC, NULL, 0xe0, "", HFILL
}
},
{
&hf_308a_mult,
{
"Multiple IE", "wmx.dlmap.reduced_aas_private.mult",
FT_UINT8, BASE_DEC, NULL, 0x02, "", HFILL
}
},
{
&hf_308a_rsv,
{
"Reserved", "wmx.dlmap.reduced_aas_private.rsv",
FT_UINT8, BASE_DEC, NULL, 0x01, "", HFILL
}
},
{
&hf_308a_type,
{
"Compressed Map Type", "wmx.dlmap.reduced_aas_private.type",
FT_UINT8, BASE_DEC, NULL, 0x0d, "", HFILL
}
},
{
&hf_308a_ulmap,
{
"UL-MAP appended", "wmx.dlmap.reduced_aas_private.ulmap",
FT_UINT8, BASE_DEC, NULL, 0x10, "", HFILL
}
},
{
&hf_mac_header_compress_dlmap_crc,
{
"CRC", "wmx.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 */
"wmx.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);
/* XXX This should be removed, and regular tvb accessors should be used instead. */
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);
/* XXX This should be removed, and regular tvb accessors should be used instead. */
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);
/* XXX This should be removed, and regular tvb accessors should be used instead. */
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);
/* XXX This should be removed, and regular tvb accessors should be used instead. */
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;
}
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