/* Decode RNG-RSP messages. */
void dissect_mac_mgmt_msg_rng_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
proto_item *ranging_status_item = NULL;
proto_item *dl_freq_override_item = NULL;
proto_item *ss_mac_address_item = NULL;
proto_item *frame_number_item = NULL;
proto_item *opportunity_number_item = NULL;
guint offset = 0;
guint tlv_offset;
guint tvb_len, payload_type;
proto_item *rng_rsp_item = NULL;
proto_item *tlv_item = NULL;
proto_tree *rng_rsp_tree = NULL;
proto_tree *sub_tree = NULL;
proto_tree *tlv_tree = NULL;
tlv_info_t tlv_info;
gint tlv_type;
guint tlv_len;
guint this_offset = 0;
tlv_info_t sub_tlv_info;
gint sub_tlv_type;
gint sub_tlv_len;
guint sub_tlv_offset;
float timing_adjust;
float power_level_adjust;
gint offset_freq_adjust;
/* Ensure the right payload type */
payload_type = tvb_get_guint8(tvb, offset);
if(payload_type != MAC_MGMT_MSG_RNG_RSP)
{
return;
}
if (tree)
{ /* we are being asked for details */
/* Get the tvb reported length */
tvb_len = tvb_reported_length(tvb);
/* display MAC payload type RNG-RSP */
rng_rsp_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, offset, tvb_len, "MAC Management Message, RNG-RSP (5)");
/* add MAC RNG-RSP subtree */
rng_rsp_tree = proto_item_add_subtree(rng_rsp_item, ett_mac_mgmt_msg_rng_rsp_decoder);
/* display the Message Type */
proto_tree_add_item(rng_rsp_tree, hf_rng_rsp_message_type, tvb, offset, 1, FALSE);
proto_tree_add_item(rng_rsp_tree, hf_rng_req_reserved, tvb, 1, 1, FALSE);
offset += 2;
while(offset < tvb_len)
{
/* Get the TLV data. */
init_tlv_info(&tlv_info, tvb, offset);
/* get the TLV type */
tlv_type = get_tlv_type(&tlv_info);
/* get the TLV length */
tlv_len = get_tlv_length(&tlv_info);
if(tlv_type == -1 || tlv_len > MAX_TLV_LEN || tlv_len < 1)
{ /* invalid tlv info */
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "RNG-RSP TLV error");
proto_tree_add_item(rng_rsp_tree, hf_rng_invalid_tlv, tvb, offset, (tvb_len - offset), FALSE);
break;
}
/* get the offset to the TLV data */
tlv_offset = offset + get_tlv_value_offset(&tlv_info);
switch (tlv_type) {
case RNG_RSP_TIMING_ADJUST: {
sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, tlv_offset, tlv_len, "Timing Adjust (%u byte(s))", tlv_len);
timing_adjust = (float)(gint32)tvb_get_ntohl(tvb, tlv_offset) / 4;
tlv_item = proto_tree_add_float_format_value(sub_tree, hf_rng_rsp_timing_adjust, tvb,
tlv_offset, 4, timing_adjust, " %.2f modulation symbols", timing_adjust);
if ((timing_adjust < -2) || (timing_adjust > 2))
proto_item_append_text(tlv_item, " (during periodic ranging shall not exceed +- 2)");
break;
}
case RNG_RSP_POWER_LEVEL_ADJUST: {
sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, tlv_offset, tlv_len, "Power Level Adjust (%u byte(s))", tlv_len);
power_level_adjust = (float)(gint8)tvb_get_guint8(tvb, tlv_offset) / 4;
proto_tree_add_float_format_value(sub_tree, hf_rng_rsp_power_level_adjust, tvb, tlv_offset, 1,
power_level_adjust, " %.2f dB", power_level_adjust);
break;
}
case RNG_RSP_OFFSET_FREQ_ADJUST: {
sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, tlv_offset, tlv_len, "Offset Frequency Adjust (%u byte(s))", tlv_len);
offset_freq_adjust = tvb_get_ntohl(tvb, tlv_offset);
proto_tree_add_int_format_value(sub_tree, hf_rng_rsp_offset_freq_adjust, tvb, tlv_offset, 4,
offset_freq_adjust, " %d Hz", offset_freq_adjust);
break;
}
case RNG_RSP_RANGING_STATUS:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_ranging_status, tvb, tlv_offset, 1, FALSE);
ranging_status_item = proto_tree_add_item(sub_tree, hf_rng_rsp_ranging_status, tvb, tlv_offset, 1, FALSE);
break;
case RNG_RSP_DL_FREQ_OVERRIDE: {
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_dl_freq_override, tvb, tlv_offset, 4, FALSE);
dl_freq_override_item = proto_tree_add_item(sub_tree, hf_rng_rsp_dl_freq_override, tvb, tlv_offset, 4, FALSE);
proto_item_append_text(dl_freq_override_item, " kHz");
break;
}
case RNG_RSP_UL_CHANNEL_ID_OVERRIDE:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_ul_chan_id_override, tvb, tlv_offset, 1, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ul_chan_id_override, tvb, tlv_offset, 1, FALSE);
break;
case RNG_RSP_DL_OPERATIONAL_BURST_PROFILE:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_dl_operational_burst_profile, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_dl_operational_burst_profile_diuc, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_dl_operational_burst_profile_ccc, tvb, tlv_offset, 2, FALSE);
break;
case RNG_RSP_SS_MAC_ADDRESS:
if (tlv_len == 6)
{
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_ss_mac_address, tvb, tlv_offset, 6, FALSE);
ss_mac_address_item = proto_tree_add_item(sub_tree, hf_rng_rsp_ss_mac_address, tvb, tlv_offset, 6, FALSE);
} else {
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_invalid_tlv, tvb, tlv_offset, tlv_len, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ss_mac_address, tvb, tlv_offset, 6, FALSE);
}
break;
case RNG_RSP_BASIC_CID:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_basic_cid, tvb, tlv_offset, 1, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_basic_cid, tvb, tlv_offset, 2, FALSE);
break;
case RNG_RSP_PRIMARY_MGMT_CID:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_primary_mgmt_cid, tvb, tlv_offset, 1, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_primary_mgmt_cid, tvb, tlv_offset, 2, FALSE);
break;
case RNG_RSP_AAS_BROADCAST_PERMISSION:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_broadcast, tvb, tlv_offset, 1, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_broadcast, tvb, tlv_offset, 1, FALSE);
break;
case RNG_RSP_FRAME_NUMBER:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_frame_number, tvb, tlv_offset, 3, FALSE);
frame_number_item = proto_tree_add_item(sub_tree, hf_rng_rsp_frame_number, tvb, tlv_offset, 3, FALSE);
break;
case RNG_RSP_OPPORTUNITY_NUMBER:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_opportunity_number, tvb, tlv_offset, 1, FALSE);
opportunity_number_item = proto_tree_add_item(sub_tree, hf_rng_rsp_opportunity_number, tvb, tlv_offset, 1, FALSE);
if (tvb_get_ntohl(tvb, tlv_offset) == 0)
proto_item_append_text(opportunity_number_item, " (may not be 0!)");
break;
case RNG_RSP_SERVICE_LEVEL_PREDICTION:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_service_level_prediction, tvb, tlv_offset, 1, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_service_level_prediction, tvb, tlv_offset, 1, FALSE);
break;
case RNG_RSP_RESOURCE_RETAIN_FLAG:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_resource_retain_flag, tvb, tlv_offset, 1, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_resource_retain_flag, tvb, tlv_offset, 1, FALSE);
break;
case RNG_RSP_HO_PROCESS_OPTIMIZATION:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_ho_process_optimization, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_0, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_1_2, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_3, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_4, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_5, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_6, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_7, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_8, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_9, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_10, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_11, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_12, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_13, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_14, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_process_optimization_15, tvb, tlv_offset, 2, FALSE);
break;
case RNG_RSP_SBC_RSP_ENCODINGS:
sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, tlv_offset, tlv_len, "SBC-RSP Encodings (%u byte(s))", tlv_len);
dissect_mac_mgmt_msg_sbc_rsp_decoder(tvb_new_subset(tvb, tlv_offset, tlv_len, tlv_len), pinfo, sub_tree);
break;
case RNG_RSP_REG_RSP_ENCODINGS:
sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, tlv_offset, tlv_len, "REG-RSP Encodings (%u byte(s))", tlv_len);
dissect_mac_mgmt_msg_reg_rsp_decoder(tvb_new_subset(tvb, tlv_offset, tlv_len, tlv_len), pinfo, sub_tree);
break;
/* Implemented message encoding 33 (Table 367 in IEEE 802.16e-2007) */
case RNG_RSP_DL_OP_BURST_PROFILE_OFDMA:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_dl_op_burst_profile_ofdma, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_least_robust_diuc, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_repetition_coding_indication, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_config_change_count_of_dcd, tvb, tlv_offset, 2, FALSE);
break;
case RNG_RSP_HO_ID:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_ho_id, tvb, tlv_offset, 1, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ho_id, tvb, tlv_offset, 1, FALSE);
break;
case RNG_RSP_LOCATION_UPDATE_RESPONSE:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_location_update_response, tvb, tlv_offset, 1, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_location_update_response, tvb, tlv_offset, 1, FALSE);
break;
case RNG_RSP_PAGING_INFORMATION:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_paging_information, tvb, tlv_offset, 5, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_paging_cycle, tvb, tlv_offset, 2, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_paging_offset, tvb, tlv_offset+2, 1, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_paging_group_id, tvb, tlv_offset+3, 2, FALSE);
break;
case RNG_RSP_POWER_SAVING_CLASS_PARAMETERS:
sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, tlv_offset, tlv_len, "Power Saving Class Parameters (%u byte(s))", tlv_len);
dissect_power_saving_class(sub_tree, tlv_type, tvb, tlv_len, pinfo, tlv_offset);
break;
case RNG_RSP_SA_CHALLENGE_TUPLE:
/* Display SA Challenge Tuple header */
sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, tlv_offset, tlv_len, "SA Challenge Tuple (%u byte(s))", tlv_len);
/* add subtree */
/* Use a local copy of tlv_offset */
this_offset = tlv_offset;
while(this_offset < tlv_len) {
/* Get the sub TLV data. */
init_tlv_info(&sub_tlv_info, tvb, this_offset);
/* get the sub TLV type */
sub_tlv_type = get_tlv_type(&sub_tlv_info);
/* get the TLV length */
sub_tlv_len = get_tlv_length(&sub_tlv_info);
if(tlv_type == -1 || sub_tlv_len > MAX_TLV_LEN || sub_tlv_len < 1)
{ /* invalid tlv info */
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "RNG-RSP TLV error");
proto_tree_add_item(rng_rsp_tree, hf_rng_invalid_tlv, tvb, tlv_offset, (tvb_len - offset), FALSE);
break;
}
/* get the offset to the sub TLV data */
sub_tlv_offset = this_offset + get_tlv_value_offset(&sub_tlv_info);
switch (sub_tlv_type) {
case RNG_RSP_SA_CHALLENGE_BS_RANDOM:
tlv_tree = add_tlv_subtree(&sub_tlv_info, ett_rng_rsp_message_tree, sub_tree, hf_rng_rsp_bs_random, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_rng_rsp_bs_random, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
break;
case RNG_RSP_SA_CHALLENGE_AKID:
tlv_tree = add_tlv_subtree(&sub_tlv_info, ett_rng_rsp_message_tree, sub_tree, hf_rng_rsp_akid, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_rng_rsp_akid, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
break;
default:
tlv_tree = add_tlv_subtree(&sub_tlv_info, ett_rng_rsp_message_tree, sub_tree, hf_tlv_type, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
proto_tree_add_item(tlv_tree, hf_tlv_type, tvb, sub_tlv_offset, sub_tlv_len, FALSE);
break;
}
this_offset = sub_tlv_len + sub_tlv_offset;
}
break;
case DSx_UPLINK_FLOW:
/* display Uplink Service Flow Encodings info */
/* add subtree */
sub_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_rng_rsp_decoder, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, tlv_offset, tlv_len, "Uplink QOS Parameters (%u bytes)", tlv_len);
/* decode and display the DL Service Flow Encodings */
wimax_service_flow_encodings_decoder(tvb_new_subset(tvb, tlv_offset, tlv_len, tlv_len), pinfo, sub_tree);
break;
case DSx_DOWNLINK_FLOW:
/* display Downlink Service Flow Encodings info */
/* add subtree */
sub_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_rng_rsp_decoder, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, tlv_offset, tlv_len, "Downlink QOS Parameters (%u bytes)", tlv_len);
/* decode and display the DL Service Flow Encodings */
wimax_service_flow_encodings_decoder(tvb_new_subset(tvb, tlv_offset, tlv_len, tlv_len), pinfo, sub_tree);
break;
case RNG_RSP_RANGING_CODE_ATTRIBUTES:
/* case SHORT_HMAC_TUPLE: */
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_rng_rsp_ranging_subchan, tvb, tlv_offset, 4, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_time_symbol_reference, tvb, tlv_offset, 4, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_subchannel_reference, tvb, tlv_offset, 4, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_ranging_code_index, tvb, tlv_offset, 4, FALSE);
proto_tree_add_item(sub_tree, hf_rng_rsp_frame_number2, tvb, tlv_offset, 4, FALSE);
break;
case SHORT_HMAC_TUPLE_COR2:
if (include_cor2_changes) {
sub_tree = add_protocol_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, proto_mac_mgmt_msg_rng_rsp_decoder, tvb, tlv_offset, tlv_len, "Short HMAC Tuple (%u byte(s))", tlv_len);
wimax_short_hmac_tuple_decoder(sub_tree, tvb, tlv_offset, tvb_len - offset);
} else {
/* Unknown TLV type */
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_tlv_type, tvb, tlv_offset, 1, FALSE);
proto_tree_add_item(sub_tree, hf_tlv_type, tvb, tlv_offset, tlv_len, FALSE);
}
break;
default:
sub_tree = add_tlv_subtree(&tlv_info, ett_rng_rsp_message_tree, rng_rsp_tree, hf_tlv_type, tvb, tlv_offset, 1, FALSE);
proto_tree_add_item(sub_tree, hf_tlv_type, tvb, tlv_offset, tlv_len, FALSE);
break;
}
offset = tlv_len + tlv_offset;
} /* end of TLV process while loop */
if (ranging_status_item && dl_freq_override_item)
proto_item_append_text(ranging_status_item, " (shall be set to 2 because Downlink Frequency Override is present)");
if (ss_mac_address_item && frame_number_item) {
proto_item_append_text(frame_number_item, " (mutually exclusive with SS MAC Address!)");
proto_item_append_text(ss_mac_address_item, " (mutually exclusive with Frame Number!)");
}
if (ss_mac_address_item && opportunity_number_item) {
proto_item_append_text(opportunity_number_item, " (mutually exclusive with SS MAC Address!)");
proto_item_append_text(ss_mac_address_item, " (mutually exclusive with Initial Ranging Opportunity Number!)");
}
if (!ranging_status_item)
proto_item_append_text(rng_rsp_tree, " (Ranging status is missing!)");
}
}
/* Decode REG-RSP messages. */
static void dissect_mac_mgmt_msg_reg_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint offset = 0;
guint tlv_offset;
guint tvb_len;
proto_item *reg_rsp_item;
proto_tree *reg_rsp_tree;
proto_item *tlv_item = NULL;
proto_tree *tlv_tree = NULL;
proto_tree *sub_tree = NULL;
gboolean hmac_found = FALSE;
tlv_info_t tlv_info;
gint tlv_type;
guint tlv_len;
guint this_offset = 0;
tlv_info_t sub_tlv_info;
gint sub_tlv_type;
gint sub_tlv_len;
guint sub_tlv_offset;
{ /* we are being asked for details */
/* Get the tvb reported length */
tvb_len = tvb_reported_length(tvb);
/* display MAC payload type REG-RSP */
reg_rsp_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, offset, tvb_len, "MAC Management Message, REG-RSP");
/* add MAC REG-RSP subtree */
reg_rsp_tree = proto_item_add_subtree(reg_rsp_item, ett_mac_mgmt_msg_reg_rsp_decoder);
proto_tree_add_item(reg_rsp_tree, hf_reg_rsp_status, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
while (offset < tvb_len)
{
/* Get the TLV data. */
init_tlv_info(&tlv_info, tvb, offset);
/* get the TLV type */
tlv_type = get_tlv_type(&tlv_info);
/* get the TLV length */
tlv_len = get_tlv_length(&tlv_info);
if (tlv_type == -1 || tlv_len > MAX_TLV_LEN || tlv_len < 1)
{ /* invalid tlv info */
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "REG-RSP TLV error");
proto_tree_add_item(reg_rsp_tree, hf_reg_invalid_tlv, tvb, offset, (tvb_len - offset), ENC_NA);
break;
}
/* get the offset to the TLV data */
tlv_offset = offset + get_tlv_value_offset(&tlv_info);
switch (tlv_type) {
case REG_ARQ_PARAMETERS:
case REG_SS_MGMT_SUPPORT:
case REG_IP_MGMT_MODE:
case REG_IP_VERSION:
case REG_UL_TRANSPORT_CIDS_SUPPORTED:
case REG_IP_PHS_SDU_ENCAP:
case REG_MAX_CLASSIFIERS_SUPPORTED:
case REG_PHS_SUPPORT:
case REG_ARQ_SUPPORT:
case REG_DSX_FLOW_CONTROL:
case REG_MCA_FLOW_CONTROL:
case REG_MCAST_POLLING_CIDS:
case REG_NUM_DL_TRANS_CID:
case REG_MAC_ADDRESS:
#ifdef WIMAX_16E_2005
case REG_TLV_T_20_MAX_MAC_DATA_PER_FRAME_SUPPORT:
case REG_TLV_T_21_PACKING_SUPPORT:
case REG_TLV_T_22_MAC_EXTENDED_RTPS_SUPPORT:
case REG_TLV_T_23_MAX_NUM_BURSTS_TRANSMITTED_CONCURRENTLY_TO_THE_MS:
case REG_TLV_T_26_METHOD_FOR_ALLOCATING_IP_ADDR_SECONDARY_MGMNT_CONNECTION:
case REG_TLV_T_27_HANDOVER_SUPPORTED:
case REG_TLV_T_29_HO_PROCESS_OPTIMIZATION_MS_TIMER:
case REG_TLV_T_31_MOBILITY_FEATURES_SUPPORTED:
case REG_TLV_T_40_ARQ_ACK_TYPE:
case REG_TLV_T_41_MS_HO_CONNECTIONS_PARAM_PROCESSING_TIME:
case REG_TLV_T_42_MS_HO_TEK_PROCESSING_TIME:
case REG_TLV_T_43_MAC_HEADER_AND_EXTENDED_SUBHEADER_SUPPORT:
case REG_POWER_SAVING_CLASS_CAPABILITY:
#endif
dissect_extended_tlv(reg_rsp_tree, tlv_type, tvb, tlv_offset, tlv_len, pinfo, offset, proto_mac_mgmt_msg_reg_rsp_decoder);
break;
case REG_RSP_SECONDARY_MGMT_CID:
add_tlv_subtree(&tlv_info, reg_rsp_tree, hf_reg_rsp_secondary_mgmt_cid, tvb, offset, ENC_BIG_ENDIAN);
break;
case REG_RSP_TLV_T_36_TOTAL_PROVISIONED_SERVICE_FLOW_DSAs:
add_tlv_subtree(&tlv_info, reg_rsp_tree, hf_reg_total_provisioned_sf, tvb, offset, ENC_BIG_ENDIAN);
break;
case REG_RSP_TLV_T_24_CID_UPDATE_ENCODINGS:
/* Display CID update encodings */
/* add subtree */
sub_tree = add_protocol_subtree(&tlv_info, ett_reg_rsp_message_tree, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, offset, tlv_len, "CID update encodings");
/* Use a local copy of tlv_offset */
this_offset = tlv_offset;
while(this_offset < tlv_len) {
/* Get the sub TLV data. */
init_tlv_info(&sub_tlv_info, tvb, this_offset);
/* get the sub TLV type */
sub_tlv_type = get_tlv_type(&sub_tlv_info);
/* get the TLV length */
sub_tlv_len = get_tlv_length(&sub_tlv_info);
if (tlv_type == -1 || sub_tlv_len > MAX_TLV_LEN || sub_tlv_len < 1)
{ /* invalid tlv info */
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "REG-RSP TLV error");
proto_tree_add_item(reg_rsp_tree, hf_reg_invalid_tlv, tvb, offset, (tvb_len - offset), ENC_NA);
break;
}
/* get the offset to the sub TLV data */
sub_tlv_offset = this_offset + get_tlv_value_offset(&sub_tlv_info);
switch (sub_tlv_type) {
case REG_RSP_TLV_T_24_1_CID_UPDATE_ENCODINGS_NEW_CID:
add_tlv_subtree(&sub_tlv_info, sub_tree, hf_reg_rsp_new_cid_after_ho, tvb, this_offset, ENC_BIG_ENDIAN);
break;
case REG_RSP_TLV_T_24_2_CID_UPDATE_ENCODINGS_SFID:
add_tlv_subtree(&sub_tlv_info, sub_tree, hf_reg_rsp_service_flow_id, tvb, this_offset, ENC_BIG_ENDIAN);
break;
case REG_RSP_TLV_T_24_3_CID_UPDATE_ENCODINGS_CONNECTION_INFO:
tlv_tree = add_protocol_subtree(&sub_tlv_info, ett_reg_rsp_message_tree, sub_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, this_offset, sub_tlv_len, "CID Update Encodings Connection Info");
/* Decode the DSC_RSP subTLV's */
call_dissector(dsc_rsp_handle, tvb_new_subset_length(tvb, sub_tlv_offset, sub_tlv_len), pinfo, tlv_tree);
break;
default:
add_tlv_subtree(&sub_tlv_info, sub_tree, hf_tlv_type, tvb, this_offset, ENC_NA);
break;
}
this_offset = sub_tlv_len + sub_tlv_offset;
}
break;
case REG_RSP_TLV_T_28_HO_SYSTEM_RESOURCE_RETAIN_TIME:
tlv_item = add_tlv_subtree(&tlv_info, reg_rsp_tree, hf_reg_rsp_system_resource_retain_time, tvb, offset, ENC_BIG_ENDIAN);
if (include_cor2_changes) {
proto_item_append_text(tlv_item, " (in units of 100 milliseconds)");
} else {
proto_item_append_text(tlv_item, " (multiple of 100 milliseconds)");
}
break;
case DSx_UPLINK_FLOW:
/* display Uplink Service Flow Encodings info */
/* add subtree */
tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, offset, tlv_len, "Uplink Service Flow Encodings");
/* decode and display the DL Service Flow Encodings */
wimax_service_flow_encodings_decoder(tvb_new_subset_length(tvb, tlv_offset, tlv_len), pinfo, tlv_tree);
break;
case DSx_DOWNLINK_FLOW:
/* display Downlink Service Flow Encodings info */
/* add subtree */
tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, offset, tlv_len, "Downlink Service Flow Encodings");
/* decode and display the DL Service Flow Encodings */
wimax_service_flow_encodings_decoder(tvb_new_subset_length(tvb, tlv_offset, tlv_len), pinfo, tlv_tree);
break;
case HMAC_TUPLE: /* Table 348d */
/* decode and display the HMAC Tuple */
tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, offset, tlv_len, "HMAC Tuple");
wimax_hmac_tuple_decoder(tlv_tree, tvb, offset+2, tlv_len);
hmac_found = TRUE;
break;
case CMAC_TUPLE: /* Table 348b */
/* decode and display the CMAC Tuple */
tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, offset, tlv_len, "CMAC Tuple");
wimax_cmac_tuple_decoder(tlv_tree, tvb, offset+2, tlv_len);
break;
case SHORT_HMAC_TUPLE:
case SHORT_HMAC_TUPLE_COR2:
if ((!include_cor2_changes && (tlv_type == SHORT_HMAC_TUPLE)) ||
(include_cor2_changes && (tlv_type == SHORT_HMAC_TUPLE_COR2))) {
/* decode and display the Short HMAC Tuple */
tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_reg_rsp_decoder, reg_rsp_tree, proto_mac_mgmt_msg_reg_rsp_decoder, tvb, offset, tlv_len, "Short HMAC Tuple");
wimax_short_hmac_tuple_decoder(tlv_tree, tvb, tlv_offset, tlv_len);
} else {
/* Unknown TLV Type */
add_tlv_subtree(&tlv_info, reg_rsp_tree, hf_tlv_type, tvb, offset, ENC_NA);
}
break;
case VENDOR_SPECIFIC_INFO:
case VENDOR_ID_ENCODING:
case MAC_VERSION_ENCODING:
wimax_common_tlv_encoding_decoder(tvb_new_subset_length(tvb, offset, (tvb_len - offset)), pinfo, reg_rsp_tree);
break;
default:
add_tlv_subtree(&tlv_info, reg_rsp_tree, hf_tlv_type, tvb, offset, ENC_NA);
break;
}
offset = tlv_len + tlv_offset;
} /* end of TLV process while loop */
if (!hmac_found)
proto_item_append_text(reg_rsp_tree, " (HMAC Tuple is missing !)");
}
}
