/* msg_dlmap.c * WiMax MAC Management DL-MAP Message decoder * * Copyright (c) 2007 by Intel Corporation. * * Author: Mike Harvey * * $Id$ * * Wireshark - Network traffic analyzer * By Gerald Combs * Copyright 1999 Gerald Combs * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Include files */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include #include #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; 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; #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 Miscellaneous IEs and TLVs *******************************************************************/ gint RCID_IE(proto_tree *diuc_tree, const guint8 *bufptr, gint offset, gint length, tvbuff_t *tvb, gint RCID_Type_lcl) { /* 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_lcl == 0) length = 16; else { Prefix = BIT_BIT(bit, bufptr); if (Prefix == 1) length = 12; else if (RCID_Type_lcl == 1) length = 12; else if (RCID_Type_lcl == 2) length = 8; else if (RCID_Type_lcl == 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_lcl == 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_lcl == 1) { /* RCID 11 */ XBIT(cid, 11, "CID11"); } else if (RCID_Type_lcl == 2) { /* RCID 7 */ XBIT(cid, 7, "CID7"); } else if (RCID_Type_lcl == 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, length), "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"); nsub += 1; 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(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(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(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(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(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(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, sub_len, pad; 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(sub_len, 8, "Sub-burst IE Length"); /* 8.4.5.3.21 */ /* length of these are variable, each returns length in nibbles */ if (mode == 0) { DL_HARQ_Chase_sub_burst_IE(tree, bufptr, BIT_TO_NIB(bit), length, tvb); } else if (mode == 1) { DL_HARQ_IR_CTC_sub_burst_IE(tree, bufptr, BIT_TO_NIB(bit), length, tvb); } else if (mode == 2) { DL_HARQ_IR_CC_sub_burst_IE(tree, bufptr, BIT_TO_NIB(bit), length, tvb); } else if (mode == 3) { MIMO_DL_Chase_HARQ_sub_burst_IE(tree, bufptr, BIT_TO_NIB(bit), length, tvb); } else if (mode == 4) { MIMO_DL_IR_HARQ_sub_burst_IE(tree, bufptr, BIT_TO_NIB(bit), length, tvb); } else if (mode == 5) { MIMO_DL_IR_HARQ_for_CC_sub_burst_IE(tree, bufptr, BIT_TO_NIB(bit), length, tvb); } else if (mode == 6) { MIMO_DL_STC_HARQ_sub_burst_IE(tree, bufptr, BIT_TO_NIB(bit), length, tvb); } else { proto_tree_add_text(tree, tvb, BITHI(bit,1), "(reserved Mode)"); break; /* cannot continue */ } bit += NIB_TO_BIT(sub_len); } pad = NIB_TO_BIT(offset) + length - bit; if (pad) { proto_tree_add_text(tree, tvb, BITHI(bit,pad), "Padding: %d bits",pad); bit += pad; } 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, 2, "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); 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_uint(tree, hf_dlmap_ie_ncid, tvb, NIBHI(nibble, 2), n_cid); 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 { data = NIB_WORD(nibble, bufptr); proto_tree_add_uint(tree, hf_dlmap_ie_cid, tvb, NIBHI(nibble, 4), data); 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 */ 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 (dl_ie_count--) { 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(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(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(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; } /* Register Wimax Mac Payload Protocol and Dissector */ void proto_register_mac_mgmt_msg_dlmap(void) { /* 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, NULL, HFILL } }, { &hf_dlmap_bsid, { "Base Station ID", "wmx.dlmap.bsid", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } }, { &hf_dlmap_dcd, { "DCD Count", "wmx.dlmap.dcd", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmap_fch_expected, { "FCH Expected", "wmx.dlmap.fch_expected", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmap_ie, { "DL-MAP IE", "wmx.dlmap.ie", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmap_ie_boosting, { "Boosting", "wmx.dlmap.ie.boosting", FT_UINT32, BASE_DEC, VALS(boost_msgs), 0x00038000, NULL, HFILL } }, { &hf_dlmap_ie_boosting2, { "Boosting", "wmx.dlmap.ie.boosting", FT_UINT32, BASE_DEC, VALS(boost_msgs), 0x0000E000, NULL, HFILL } }, { &hf_dlmap_ie_cid, { "CID", "wmx.dlmap.ie.cid", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmap_ie_diuc, { "DIUC", "wmx.dlmap.ie.diuc", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmap_ie_ncid, { "N_CID", "wmx.dlmap.ie.ncid", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmap_ie_numsub, { "Number of Subchannels", "wmx.dlmap.ie.numsub", FT_UINT32, BASE_DEC, NULL, 0x000000FC, NULL, HFILL } }, { &hf_dlmap_ie_numsym, { "Number of OFDMA Symbols", "wmx.dlmap.ie.numsym", FT_UINT32, BASE_DEC, NULL, 0x00007F00, NULL, HFILL } }, { &hf_dlmap_ie_numsub2, { "Number of Subchannels", "wmx.dlmap.ie.numsub", FT_UINT32, BASE_DEC, NULL, 0x000000FC, NULL, HFILL } }, { &hf_dlmap_ie_numsym2, { "Number of OFDMA Symbols", "wmx.dlmap.ie.numsym", FT_UINT32, BASE_DEC, NULL, 0x00001F00, NULL, HFILL } }, { &hf_dlmap_ie_offsub, { "Subchannel Offset", "wmx.dlmap.ie.offsub", FT_UINT32, BASE_DEC, NULL, 0x00FC0000, NULL, HFILL } }, { &hf_dlmap_ie_offsym, { "OFDMA Symbol Offset", "wmx.dlmap.ie.offsym", FT_UINT32, BASE_DEC, NULL, 0xFF000000, NULL, HFILL } }, /* alt ie format */ { &hf_dlmap_ie_offsub2, { "Subchannel Offset", "wmx.dlmap.ie.offsub", FT_UINT32, BASE_DEC, NULL, 0x00FF0000, NULL, HFILL } }, { &hf_dlmap_ie_offsym2, { "OFDMA Symbol Offset", "wmx.dlmap.ie.offsym", FT_UINT32, BASE_DEC, NULL, 0xFF000000, NULL, HFILL } }, { &hf_dlmap_ie_rep, { "Repetition Coding Indication", "wmx.dlmap.ie.rep", FT_UINT32, BASE_DEC, VALS(rep_msgs), 0x00000003, NULL, HFILL } }, { &hf_dlmap_ie_rep2, { "Repetition Coding Indication", "wmx.dlmap.ie.rep", FT_UINT32, BASE_DEC, VALS(rep_msgs), 0x00000003, NULL, HFILL } }, { &hf_dlmap_ofdma_sym, { "Num OFDMA Symbols", "wmx.dlmap.ofdma_sym", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmap_phy_fdur, { "Frame Duration Code", "wmx.dlmap.phy_fdur", FT_UINT8, BASE_HEX, NULL, 0x00, NULL, HFILL } }, { &hf_dlmap_phy_fnum, { "Frame Number", "wmx.dlmap.phy_fnum", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmapc_compr, { "Compressed map indicator", "wmx.dlmapc.compr", FT_UINT16, BASE_DEC, NULL, 0xe000, NULL, HFILL } }, { &hf_dlmapc_count, { "DL IE Count", "wmx.dlmapc.count", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmapc_len, { "Map message length", "wmx.dlmapc.len", FT_UINT16, BASE_DEC, NULL, 0x07FF, NULL, HFILL } }, { &hf_dlmapc_opid, { "Operator ID", "wmx.dlmapc.opid", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmapc_rsv, { "Reserved", "wmx.dlmapc.rsv", FT_UINT16, BASE_DEC, NULL, 0x0800, NULL, HFILL } }, { &hf_dlmapc_secid, { "Sector ID", "wmx.dlmapc.secid", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmapc_sync, { "PHY Synchronization Field", "wmx.dlmapc.sync", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmapc_ulmap, { "UL-MAP appended", "wmx.dlmapc.ulmap", FT_UINT16, BASE_DEC, NULL, 0x1000, NULL, HFILL } }, { &hf_dlmap_xie_diuc, { "Extended DIUC", "wmx.dlmapc.xie_diuc", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_dlmap_xie_len, { "Length", "wmx.dlmapc.xie_len", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_109x_cmi, { "SUB-DL-UL-MAP map indicator", "wmx.dlul.cmi", FT_UINT16, BASE_DEC, NULL, 0xE000, NULL, HFILL } }, { &hf_109x_dl, { "DL HARQ ACK offset", "wmx.dlul.dl", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_109x_dlie, { "DL IE Count", "wmx.dlul.dlie", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_109x_haoi, { "HARQ ACK offset indicator", "wmx.dlul.haoi", FT_UINT16, BASE_DEC, NULL, 0x0001, NULL, 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, NULL, HFILL } }, { &hf_109x_rcid, { "RCID_Type", "wmx.dlul.rcid", FT_UINT16, BASE_DEC, NULL, 0x0006, NULL, HFILL } }, { &hf_109x_subofs, { "Subchannel offset", "wmx.dlul.subofs", FT_UINT8, BASE_DEC, NULL, 0xFE, NULL, 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, NULL, HFILL } }, { &hf_109x_rsv, { "Reserved", "wmx.dlul.rsv", FT_UINT8, BASE_DEC, NULL, 0x01, NULL, HFILL } }, { &hf_109x_ul, { "UL HARQ ACK offset", "wmx.dlul.ul", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_308a_cmi, { "Compressed map indicator", "wmx.dlmap.reduced_aas_private.cmi", FT_UINT8, BASE_DEC, NULL, 0xe0, NULL, HFILL } }, { &hf_308a_mult, { "Multiple IE", "wmx.dlmap.reduced_aas_private.mult", FT_UINT8, BASE_DEC, NULL, 0x02, NULL, HFILL } }, { &hf_308a_rsv, { "Reserved", "wmx.dlmap.reduced_aas_private.rsv", FT_UINT8, BASE_DEC, NULL, 0x01, NULL, HFILL } }, { &hf_308a_type, { "Compressed Map Type", "wmx.dlmap.reduced_aas_private.type", FT_UINT8, BASE_DEC, NULL, 0x0d, NULL, HFILL } }, { &hf_308a_ulmap, { "UL-MAP appended", "wmx.dlmap.reduced_aas_private.ulmap", FT_UINT8, BASE_DEC, NULL, 0x10, NULL, HFILL } }, { &hf_mac_header_compress_dlmap_crc, { "CRC", "wmx.compress_dlmap_crc", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } } }; /* 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, }; 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)); }