?? plugins-wimax-msg_dcd.c
字號:
{
&hf_dcd_tlv_t_50_ho_type_support,
{
"HO Type Support", "wimax.dcd.ho_type_support",
FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL
}
},
{
&hf_dcd_tlv_t_50_ho_type_support_fbss_ho,
{
"FBSS HO", "wimax.dcd.ho_type_support.fbss_ho",
FT_UINT8, BASE_HEX, VALS(tfs_support), 0x20, "", HFILL
}
},
{
&hf_dcd_tlv_t_50_ho_type_support_ho,
{
"HO", "wimax.dcd.ho_type_support.ho",
FT_UINT8, BASE_HEX, VALS(tfs_support), 0x80, "", HFILL
}
},
{
&hf_dcd_tlv_t_50_ho_type_support_mdho,
{
"MDHO", "wimax.dcd.ho_type_support.mdho",
FT_UINT8, BASE_HEX, VALS(tfs_support), 0x40, "", HFILL
}
},
{
&hf_dcd_tlv_t_50_ho_type_support_reserved,
{
"Reserved", "wimax.dcd.ho_type_support.reserved",
FT_UINT8, BASE_HEX, NULL, 0x1f, "", HFILL
}
},
{
&hf_dcd_tlv_t_51_hysteresis_margin,
{
"Hysteresis Margin", "wimax.dcd.hysteresis_margin",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dcd_invalid_tlv,
{
"Invalid TLV", "wimax.dcd.invalid_tlv",
FT_BYTES, BASE_HEX, NULL, 0, "", HFILL
}
},
{
&hf_dcd_mac_version,
{
"MAC Version", "wimax.dcd.mac_version",
FT_UINT8, BASE_DEC, VALS(vals_dcd_mac_version), 0x00, "", HFILL
}
},
{
&hf_dcd_tlv_t_20_maximum_retransmission,
{
"Maximum Retransmission", "wimax.dcd.maximum_retransmission",
FT_UINT8, BASE_DEC, NULL, 0x00, "", HFILL
}
},
{
&hf_dcd_tlv_t_60_noise_interference,
{
"Noise and Interference", "wimax.dcd.noise_interference",
FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL
}
},
{
&hf_dcd_tlv_t_35_paging_group_id,
{
"Paging Group ID", "wimax.dcd.paging_group_id",
FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL
}
},
{
&hf_dcd_tlv_t_36_tusc1_permutation_active_subchannels_bitmap,
{
"TUSC1 permutation active subchannels bitmap", "wimax.dcd.tusc1",
FT_UINT16, BASE_HEX, NULL, 0xFF80, "", HFILL
}
},
{
&hf_dcd_tlv_t_37_tusc2_permutation_active_subchannels_bitmap,
{
"TUSC2 permutation active subchannels bitmap", "wimax.dcd.tusc2",
FT_UINT16, BASE_HEX, NULL, 0xFFF8, "", HFILL
}
},
{
&hf_dcd_tlv_t_45_paging_interval_length,
{
"Paging Interval Length", "wimax.dcd.paging_interval_length",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dcd_tlv_t_19_permutation_type_for_broadcast_regions_in_harq_zone,
{
"Permutation Type for Broadcast Region in HARQ Zone", "wimax.dcd.permutation_type_broadcast_region_in_harq_zone",
FT_UINT8, BASE_DEC, VALS(vals_dcd_permutation_type), 0x00, "", HFILL
}
},
{
&hf_dcd_phy_type,
{
"PHY Type", "wimax.dcd.phy_type",
FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL
}
},
{
&hf_dcd_power_adjustment,
{
"Power Adjustment Rule", "wimax.dcd.power_adjustment",
FT_UINT8, BASE_HEX, VALS(vals_dcd_power_adjustmnt), 0x00, "", HFILL
}
},
#ifdef WIMAX_16D_2004
{
&hf_dcd_rss,
{
"RSS (IR, max)", "wimax.dcd.rss",
FT_INT16, BASE_DEC, NULL, 0x00, "", HFILL
}
},
#endif
{
&hf_dcd_rtg,
{
"RTG", "wimax.dcd.rtg",
FT_UINT8, BASE_HEX, NULL, 0x00, "", HFILL
}
},
#ifdef WIMAX_16D_2004
{
&hf_dcd_size_cqich_id,
{
"Size of CQICH-ID Field", "wimax.dcd.size_cqich_id",
FT_UINT8, BASE_DEC, VALS(vals_dcd_size_of_cqich_id), 0x00, "", HFILL
}
},
#endif
{
&hf_dcd_channel_switch_frame_nr,
{
"Channel Switch Frame Number", "wimax.dcd.switch_frame",
FT_UINT24, BASE_DEC, NULL, 0x00, "", HFILL
}
},
{
&hf_dcd_tlv_t_52_time_to_trigger_duration,
{
"Time to Trigger Duration", "wimax.dcd.time_trigger_duration",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dcd_tlv_t_543_trigger_averaging_duration,
{
"Trigger Averaging Duration", "wimax.dcd.trigger_averaging_duration",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dcd_tlv_t_542_trigger_value,
{
"Trigger Value", "wimax.dcd.trigger_value",
FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL
}
},
{
&hf_dcd_ttg,
{
"TTG", "wimax.dcd.ttg",
FT_UINT16, BASE_HEX, NULL, 0x00, "", HFILL
}
},
{
&hf_dcd_tlv_t_541_type_function_action,
{
"Type/Function/Action", "wimax.dcd.type_function_action",
FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL
}
},
{
&hf_dcd_tlv_t_541_action,
{
"Action", "wimax.dcd.type_function_action.action",
FT_UINT8, BASE_HEX, VALS(vals_dcd_action), 0x7, "", HFILL
}
},
{
&hf_dcd_tlv_t_541_function,
{
"Function", "wimax.dcd.type_function_action.function",
FT_UINT8, BASE_HEX, VALS(vals_dcd_function), 0x38, "", HFILL
}
},
{
&hf_dcd_tlv_t_541_type,
{
"Type", "wimax.dcd.type_function_action.type",
FT_UINT8, BASE_HEX, VALS(vals_dcd_type), 0xC0, "", HFILL
}
},
{
&hf_dcd_unknown_type,
{
"Unknown DCD Type", "wimax.dcd.unknown_tlv_value",
FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL
}
}
};
/* Register Wimax Mac Payload Protocol and Dissector */
void proto_register_mac_mgmt_msg_dcd(void)
{
if (proto_mac_mgmt_msg_dcd_decoder == -1)
{
proto_mac_mgmt_msg_dcd_decoder = proto_register_protocol (
"WiMax DCD/UCD Messages", /* name */
"WiMax DCD/UCD (cd)", /* short name */
"cd" /* abbrev */
);
proto_register_field_array(proto_mac_mgmt_msg_dcd_decoder, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
}
/* WiMax MAC Management DCD message (table 15) dissector */
void dissect_mac_mgmt_msg_dcd_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint offset = 0;
guint tvb_len, payload_type, length;
guint configChangeCount;
gint tlv_type, tlv_len, tlv_offset, tlv_value_offset;
guint dl_burst_diuc, dl_num_regions;
proto_item *dcd_item = NULL;
proto_tree *dcd_tree = NULL;
proto_item *tlv_item = NULL;
proto_tree *tlv_tree = NULL;
proto_tree *sub_tree = NULL;
tlv_info_t tlv_info;
/* Ensure the right payload type */
payload_type = tvb_get_guint8(tvb, offset);
if(payload_type != MAC_MGMT_MSG_DCD)
{
return;
}
if(tree)
{ /* we are being asked for details */
/* Get the tvb reported length */
tvb_len = tvb_reported_length(tvb);
/* display MAC payload type DCD */
dcd_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, tvb_len, "Downlink Channel Descriptor (DCD) (%u bytes)", tvb_len);
/* add MAC DCD subtree */
dcd_tree = proto_item_add_subtree(dcd_item, ett_mac_mgmt_msg_dcd_decoder);
/* Decode and display the Downlink Channel Descriptor (DCD) */
/* display the Message Type */
proto_tree_add_item(dcd_tree, hf_dcd_message_type, tvb, offset, 1, FALSE);
/* set the offset for the Downlink Channel ID */
offset++;
/* display the Downlink Channel ID */
proto_tree_add_item(dcd_tree, hf_dcd_downlink_channel_id, tvb, offset, 1, FALSE);
/* set the offset for the Configuration Change Count */
offset++;
/* get the Configuration Change Count */
configChangeCount = tvb_get_guint8(tvb, offset);
/* display the Configuration Change Count */
proto_tree_add_item(dcd_tree, hf_dcd_config_change_count, tvb, offset, 1, FALSE);
/* set the offset for the TLV Encoded info */
offset++;
/* process the DCD TLV Encoded information (table 358) */
while(offset < tvb_len)
{
/* get the TLV information */
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 */
if(pinfo->cinfo)
{
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "DCD TLV error");
}
proto_tree_add_item(dcd_tree, hf_dcd_invalid_tlv, tvb, offset, (tvb_len - offset), FALSE);
break;
}
/* get the TLV value offset */
tlv_value_offset = get_tlv_value_offset(&tlv_info);
#ifdef DEBUG /* for debug only */
tlv_item = proto_tree_add_protocol_format(dcd_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, (tlv_len + tlv_value_offset), "DCD Type: %u (%u bytes, offset=%u, tvb_len=%u)", tlv_type, tlv_len, offset, tvb_len);
#endif
/* update the offset */
offset += tlv_value_offset;
/* process DCD TLVs */
switch (tlv_type)
{
case DCD_DOWNLINK_BURST_PROFILE:
{ /* Downlink Burst Profile TLV (table 363)*/
/* get the DIUC */
dl_burst_diuc = (tvb_get_guint8(tvb, offset) & 0x0F);
/* display TLV info */
/* add TLV subtree */
tlv_tree = add_protocol_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, dcd_tree, proto_mac_mgmt_msg_dcd_decoder, tvb, offset, tlv_len, "Downlink_Burst_Profile (DIUC=%u) (%u bytes)", (dl_burst_diuc+1), tlv_len);
/* detail display */
proto_tree_add_item(tlv_tree, hf_dcd_dl_burst_profile_rsv, tvb, offset, 1, FALSE);
proto_tree_add_item(tlv_tree, hf_dcd_dl_burst_profile_diuc, tvb, offset, 1, FALSE);
/* process subTLVs */
for (tlv_offset = 1; tlv_offset < tlv_len; )
{ /* get the TLV information */
init_tlv_info(&tlv_info, tvb, (offset+tlv_offset));
/* get the TLV type */
tlv_type = get_tlv_type(&tlv_info);
/* get the TLV length */
length = get_tlv_length(&tlv_info);
if(tlv_type == -1 || length > MAX_TLV_LEN || length < 1)
{ /* invalid tlv info */
if(pinfo->cinfo)
{
col_append_sep_str(pinfo->cinfo, COL_INFO, NULL, "DL Burst Profile TLV error");
}
proto_tree_add_item(tlv_tree, hf_dcd_invalid_tlv, tvb, offset, (tlv_len - offset - tlv_offset), FALSE);
break;
}
/* update the offset */
tlv_offset += get_tlv_value_offset(&tlv_info);
switch (tlv_type)
{
case DCD_BURST_FREQUENCY:
{
sub_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, tlv_tree, hf_dcd_burst_freq, tvb, (offset+tlv_offset), 1, FALSE);
tlv_item = proto_tree_add_item(sub_tree, hf_dcd_burst_freq, tvb, (offset+tlv_offset), 1, FALSE);
proto_item_append_text(tlv_item, " kHz");
break;
}
case DCD_BURST_FEC_CODE_TYPE:
{
sub_tree = add_tlv_subtree(&tlv_info, ett_mac_mgmt_msg_dcd_decoder, tlv_tree, hf_dcd_burst_fec, tvb, (offset+tlv_offset), 1, FALSE);
proto_tree_add_item(sub_tree, hf_dcd_burst_fec, tvb, (offset+tlv_offset), 1, FALSE);
break;
}
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