diff options
Diffstat (limited to 'plugins/wimax/msg_aas_beam.c')
| -rw-r--r-- | plugins/wimax/msg_aas_beam.c | 371 |
1 files changed, 371 insertions, 0 deletions
diff --git a/plugins/wimax/msg_aas_beam.c b/plugins/wimax/msg_aas_beam.c new file mode 100644 index 0000000000..5df7384b0d --- /dev/null +++ b/plugins/wimax/msg_aas_beam.c @@ -0,0 +1,371 @@ +/* msg_aas_beam.c + * WiMax MAC Management AAS-BEAM-SELECT/REQ/RSP Messages decoders + * + * Copyright (c) 2007 by Intel Corporation. + * + * Author: Lu Pan + * + * $Id$ + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1999 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#define OFDM /* disable it if not supporting OFDM */ + +/* Include files */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gmodule.h> +#include <epan/packet.h> +#include "wimax_mac.h" + +extern gint proto_mac_mgmt_msg_aas_fbck_decoder; + +#define AAS_BEAM_SELECT_AAS_BEAM_INDEX_MASK 0xFC +#define AAS_BEAM_SELECT_RESERVED_MASK 0x03 +#define AAS_BEAM_FEEDBACK_REQUEST_NUMBER_MASK 0xE0 +#define AAS_BEAM_MEASUREMENT_REPORT_TYPE_MASK 0x18 +#define AAS_BEAM_RESOLUTION_PARAMETER_MASK 0x07 + +#define AAS_BEAM_BEAM_BIT_MASK_MASK 0xF0 +#define AAS_BEAM_RESERVED_MASK 0x0F + +/* forward reference */ +void proto_register_mac_mgmt_msg_aas_beam(void); +void dissect_mac_mgmt_msg_aas_beam_select_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); +#ifdef OFDM +static void dissect_mac_mgmt_msg_aas_beam_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); +static void dissect_mac_mgmt_msg_aas_beam_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); +#endif + +static gint proto_mac_mgmt_msg_aas_beam_decoder = -1; +static gint ett_mac_mgmt_msg_aas_beam_select_decoder = -1; +static gint ett_mac_mgmt_msg_aas_beam_req_decoder = -1; +static gint ett_mac_mgmt_msg_aas_beam_rsp_decoder = -1; + +/* Setup protocol subtree array */ +static gint *ett[] = +{ + &ett_mac_mgmt_msg_aas_beam_select_decoder, + &ett_mac_mgmt_msg_aas_beam_req_decoder, + &ett_mac_mgmt_msg_aas_beam_rsp_decoder, +}; + +#ifdef OFDM +static const value_string vals_report_types[] = +{ + {0, "BEAM_REP_IE"}, + {0, NULL} +}; + +static const value_string vals_resolution_parameter[] = +{ + {0, "report every 4th subcarrier"}, + {1, "report every 8th subcarrier"}, + {2, "report every 16th subcarrier"}, + {3, "report every 32nd subcarrier"}, + {4, "report every 64th subcarrier"}, + {0, NULL} +}; +#endif + +/* fix fields */ +static gint hf_aas_beam_message_type = -1; +static gint hf_aas_beam_unknown_type = -1; +static gint hf_aas_beam_select_index = -1; +static gint hf_aas_beam_select_reserved = -1; +#ifdef OFDM +static gint hf_aas_beam_frame_number = -1; +static gint hf_aas_beam_feedback_request_number = -1; +static gint hf_aas_beam_measurement_report_type = -1; +static gint hf_aas_beam_resolution_parameter = -1; +static gint hf_aas_beam_beam_bit_mask = -1; +static int hf_aas_beam_freq_value_re = -1; +static int hf_aas_beam_freq_value_im = -1; +static int hf_aas_beam_rssi_value = -1; +static int hf_aas_beam_cinr_value = -1; +#endif + +/* AAS-BEAM display */ +static hf_register_info hf_aas_beam[] = +{ + { + &hf_aas_beam_message_type, + { + "MAC Management Message Type", "wimax.macmgtmsgtype.aas_beam", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_aas_beam_select_index, + { + "AAS Beam Index", "wimax.aas_beam.aas_beam_index", + FT_UINT8, BASE_DEC, NULL, AAS_BEAM_SELECT_AAS_BEAM_INDEX_MASK, "", HFILL + } + }, + { + &hf_aas_beam_beam_bit_mask, + { + "Beam Bit Mask", "wimax.aas_beam.beam_bit_mask", + FT_UINT8, BASE_HEX, NULL, AAS_BEAM_BEAM_BIT_MASK_MASK, "", HFILL + } + }, +#ifdef OFDM + { + &hf_aas_beam_cinr_value, + { + "CINR Mean Value", "wimax.aas_beam.cinr_mean_value", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_aas_beam_feedback_request_number, + { + "Feedback Request Number", "wimax.aas_beam.feedback_request_number", + FT_UINT8, BASE_DEC, NULL, AAS_BEAM_FEEDBACK_REQUEST_NUMBER_MASK, "", HFILL + } + }, + { + &hf_aas_beam_frame_number, + { + "Frame Number", "wimax.aas_beam.frame_number", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_aas_beam_freq_value_im, + { + "Frequency Value (imaginary part)", "wimax.aas_beam.freq_value_im", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_aas_beam_freq_value_re, + { + "Frequency Value (real part)", "wimax.aas_beam.freq_value_re", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_aas_beam_measurement_report_type, + { + "Measurement Report Type", "wimax.aas_beam.measurement_report_type", + FT_UINT8, BASE_DEC, VALS(vals_report_types), AAS_BEAM_MEASUREMENT_REPORT_TYPE_MASK, "", HFILL + } + }, + { + &hf_aas_beam_select_reserved, + { + "Reserved", "wimax.aas_beam.reserved", + FT_UINT8, BASE_HEX, NULL, AAS_BEAM_SELECT_RESERVED_MASK, "", HFILL + } + }, + { + &hf_aas_beam_resolution_parameter, + { + "Resolution Parameter", "wimax.aas_beam.resolution_parameter", + FT_UINT8, BASE_DEC, VALS(vals_resolution_parameter), AAS_BEAM_RESOLUTION_PARAMETER_MASK, "", HFILL + } + }, + { + &hf_aas_beam_rssi_value, + { + "RSSI Mean Value", "wimax.aas_beam.rssi_mean_value", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, +#endif + { + &hf_aas_beam_unknown_type, + { + "Unknown TLV type", "wimax.aas_beam.unknown_type", + FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL + } + } +}; + +/* Register Wimax Mac Payload Protocol and Dissector */ +void proto_register_mac_mgmt_msg_aas_beam(void) +{ + if (proto_mac_mgmt_msg_aas_beam_decoder == -1) + { + proto_mac_mgmt_msg_aas_beam_decoder = proto_mac_mgmt_msg_aas_fbck_decoder; + + proto_register_field_array(proto_mac_mgmt_msg_aas_beam_decoder, hf_aas_beam, array_length(hf_aas_beam)); + proto_register_subtree_array(ett, array_length(ett)); + } + register_dissector("mac_mgmt_msg_aas_beam_select_handler", dissect_mac_mgmt_msg_aas_beam_select_decoder, -1); +#ifdef OFDM + register_dissector("mac_mgmt_msg_aas_beam_req_handler", dissect_mac_mgmt_msg_aas_beam_req_decoder, -1); + register_dissector("mac_mgmt_msg_aas_beam_rsp_handler", dissect_mac_mgmt_msg_aas_beam_rsp_decoder, -1); +#endif +} + +void dissect_mac_mgmt_msg_aas_beam_select_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + guint offset = 0; + guint tvb_len, payload_type; + proto_item *aas_beam_item = NULL; + proto_tree *aas_beam_tree = NULL; + + if(tree) + { /* we are being asked for details */ + /* get the message type */ + payload_type = tvb_get_guint8(tvb, offset); + /* ensure the message type is AAS-BEAM-SELECT */ + if(payload_type != MAC_MGMT_MSG_AAS_BEAM_SELECT) + return; + /* Get the tvb length */ + tvb_len = tvb_length(tvb); + /* display MAC message type */ + aas_beam_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_beam_decoder, tvb, offset, tvb_len, "AAS Beam Select (AAS-BEAM-SELECT) (%u bytes)", tvb_len); + /* add subtree */ + aas_beam_tree = proto_item_add_subtree(aas_beam_item, ett_mac_mgmt_msg_aas_beam_select_decoder); + /* Display the AAS-BEAM-SELECT message type */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_message_type, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* Decode and display the AAS-BEAM-SELECT message body */ + /* display the AAS Beam Index */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_index, tvb, offset, 1, FALSE); + /* display the reserved fields */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_reserved, tvb, offset, 1, FALSE); + } +} + +#ifdef OFDM +static void dissect_mac_mgmt_msg_aas_beam_req_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + guint offset = 0; + guint tvb_len, payload_type; + proto_item *aas_beam_item = NULL; + proto_tree *aas_beam_tree = NULL; + + if(tree) + { /* we are being asked for details */ + /* get the message type */ + payload_type = tvb_get_guint8(tvb, offset); + /* ensure the message type is AAS-BEAM-REQ */ + if(payload_type != MAC_MGMT_MSG_AAS_BEAM_REQ) + return; + /* Get the tvb length */ + tvb_len = tvb_length(tvb); + /* display MAC message type */ + aas_beam_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_beam_decoder, tvb, offset, tvb_len, "AAS Beam Request (AAS-BEAM-REQ) (%u bytes)", tvb_len); + /* add subtree */ + aas_beam_tree = proto_item_add_subtree(aas_beam_item, ett_mac_mgmt_msg_aas_beam_req_decoder); + /* Display the AAS-BEAM-REQ message type */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_message_type, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* Decode and display the AAS-BEAM-REQ message body */ + /* display the Frame Number */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_frame_number, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* display the Feedback Request Number */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_feedback_request_number, tvb, offset, 1, FALSE); + /* display the Measurement Report Type */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_measurement_report_type, tvb, offset, 1, FALSE); + /* display the Resolution Parameter */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_resolution_parameter, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* display the Beam Bit mask */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_beam_bit_mask, tvb, offset, 1, FALSE); + /* display the reserved fields */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_reserved, tvb, offset, 1, FALSE); + } +} + +static void dissect_mac_mgmt_msg_aas_beam_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + guint offset = 0; + guint tvb_len, payload_type, report_type; + guint number_of_frequencies, index; + proto_item *aas_beam_item = NULL; + proto_tree *aas_beam_tree = NULL; + + if(tree) + { /* we are being asked for details */ + /* get the message type */ + payload_type = tvb_get_guint8(tvb, offset); + /* ensure the message type is AAS-BEAM-RSP */ + if(payload_type != MAC_MGMT_MSG_AAS_BEAM_RSP) + return; + /* Get the tvb length */ + tvb_len = tvb_length(tvb); + /* display MAC message type */ + aas_beam_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_beam_decoder, tvb, offset, tvb_len, "AAS Beam Response (AAS-BEAM-RSP) (%u bytes)", tvb_len); + /* add subtree */ + aas_beam_tree = proto_item_add_subtree(aas_beam_item, ett_mac_mgmt_msg_aas_beam_req_decoder); + /* Display the AAS-BEAM-RSP message type */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_message_type, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* Decode and display the AAS-BEAM-RSP message body */ + /* display the Frame Number */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_frame_number, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* get the Measurement Report Type */ + report_type = tvb_get_guint8(tvb, offset); + /* display the Feedback Request Number */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_feedback_request_number, tvb, offset, 1, FALSE); + /* display the Measurement Report Type */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_measurement_report_type, tvb, offset, 1, FALSE); + /* display the Resolution Parameter */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_resolution_parameter, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* display the Beam Bit mask */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_beam_bit_mask, tvb, offset, 1, FALSE); + /* display the reserved fields */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_reserved, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* check the Measurement Report Type */ + if((report_type & AAS_BEAM_MEASUREMENT_REPORT_TYPE_MASK) == 0) + { + /* calculate the total number of frequencies */ + number_of_frequencies = (tvb_len - offset) / 2 - 1; + /* display the frequency */ + for(index = 0; index < number_of_frequencies; index++) + { /* display the Frequency Value (real part) */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_freq_value_re, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* display the Frequency Value (imaginary part) */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_freq_value_im, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + } + } + /* display the RSSI Mean Value */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_rssi_value, tvb, offset, 1, FALSE); + /* move to next field */ + offset++; + /* display the CINR Mean Value */ + proto_tree_add_item(aas_beam_tree, hf_aas_beam_cinr_value, tvb, offset, 1, FALSE); + } +} +#endif |