/* 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 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #define OFDM /* disable it if not supporting OFDM */ /* Include files */ #include "config.h" #include #include #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 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; #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_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 static void dissect_mac_mgmt_msg_aas_beam_select_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree) { guint offset = 0; proto_item *aas_beam_item; proto_tree *aas_beam_tree; { /* we are being asked for details */ /* display MAC message type */ aas_beam_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_beam_decoder, tvb, offset, -1, "AAS Beam Select (AAS-BEAM-SELECT)"); /* add subtree */ aas_beam_tree = proto_item_add_subtree(aas_beam_item, ett_mac_mgmt_msg_aas_beam_select_decoder); /* 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, ENC_BIG_ENDIAN); /* display the reserved fields */ proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); } } #ifdef OFDM static void dissect_mac_mgmt_msg_aas_beam_req_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree) { guint offset = 0; proto_item *aas_beam_item; proto_tree *aas_beam_tree; { /* we are being asked for details */ /* display MAC message type */ aas_beam_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_beam_decoder, tvb, offset, -1, "AAS Beam Request (AAS-BEAM-REQ)"); /* add subtree */ aas_beam_tree = proto_item_add_subtree(aas_beam_item, ett_mac_mgmt_msg_aas_beam_req_decoder); /* 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, ENC_BIG_ENDIAN); /* 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, ENC_BIG_ENDIAN); /* display the Measurement Report Type */ proto_tree_add_item(aas_beam_tree, hf_aas_beam_measurement_report_type, tvb, offset, 1, ENC_BIG_ENDIAN); /* display the Resolution Parameter */ proto_tree_add_item(aas_beam_tree, hf_aas_beam_resolution_parameter, tvb, offset, 1, ENC_BIG_ENDIAN); /* 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, ENC_BIG_ENDIAN); /* display the reserved fields */ proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); } } static void dissect_mac_mgmt_msg_aas_beam_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree) { guint offset = 0; guint tvb_len, report_type; guint number_of_frequencies, indx; proto_item *aas_beam_item; proto_tree *aas_beam_tree; { /* we are being asked for details */ /* Get the tvb reported length */ tvb_len = tvb_reported_length(tvb); /* display MAC message type */ aas_beam_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_beam_decoder, tvb, offset, -1, "AAS Beam Response (AAS-BEAM-RSP)"); /* add subtree */ aas_beam_tree = proto_item_add_subtree(aas_beam_item, ett_mac_mgmt_msg_aas_beam_rsp_decoder); /* 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, ENC_BIG_ENDIAN); /* 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, ENC_BIG_ENDIAN); /* display the Measurement Report Type */ proto_tree_add_item(aas_beam_tree, hf_aas_beam_measurement_report_type, tvb, offset, 1, ENC_BIG_ENDIAN); /* display the Resolution Parameter */ proto_tree_add_item(aas_beam_tree, hf_aas_beam_resolution_parameter, tvb, offset, 1, ENC_BIG_ENDIAN); /* 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, ENC_BIG_ENDIAN); /* display the reserved fields */ proto_tree_add_item(aas_beam_tree, hf_aas_beam_select_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); /* 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(indx = 0; indx < number_of_frequencies; indx++) { /* display the Frequency Value (real part) */ proto_tree_add_item(aas_beam_tree, hf_aas_beam_freq_value_re, tvb, offset, 1, ENC_BIG_ENDIAN); /* 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, ENC_BIG_ENDIAN); /* 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, ENC_BIG_ENDIAN); /* 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, ENC_BIG_ENDIAN); } } #endif /* Register Wimax Mac Payload Protocol and Dissector */ void proto_register_mac_mgmt_msg_aas_beam(void) { /* AAS-BEAM display */ static hf_register_info hf_aas_beam[] = { { &hf_aas_beam_select_index, { "AAS Beam Index", "wmx.aas_beam.aas_beam_index", FT_UINT8, BASE_DEC, NULL, AAS_BEAM_SELECT_AAS_BEAM_INDEX_MASK, NULL, HFILL } }, { &hf_aas_beam_beam_bit_mask, { "Beam Bit Mask", "wmx.aas_beam.beam_bit_mask", FT_UINT8, BASE_HEX, NULL, AAS_BEAM_BEAM_BIT_MASK_MASK, NULL, HFILL } }, #ifdef OFDM { &hf_aas_beam_cinr_value, { "CINR Mean Value", "wmx.aas_beam.cinr_mean_value", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_aas_beam_feedback_request_number, { "Feedback Request Number", "wmx.aas_beam.feedback_request_number", FT_UINT8, BASE_DEC, NULL, AAS_BEAM_FEEDBACK_REQUEST_NUMBER_MASK, NULL, HFILL } }, { &hf_aas_beam_frame_number, { "Frame Number", "wmx.aas_beam.frame_number", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_aas_beam_freq_value_im, { "Frequency Value (imaginary part)", "wmx.aas_beam.freq_value_im", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_aas_beam_freq_value_re, { "Frequency Value (real part)", "wmx.aas_beam.freq_value_re", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, { &hf_aas_beam_measurement_report_type, { "Measurement Report Type", "wmx.aas_beam.measurement_report_type", FT_UINT8, BASE_DEC, VALS(vals_report_types), AAS_BEAM_MEASUREMENT_REPORT_TYPE_MASK, NULL, HFILL } }, { &hf_aas_beam_select_reserved, { "Reserved", "wmx.aas_beam.reserved", FT_UINT8, BASE_HEX, NULL, AAS_BEAM_SELECT_RESERVED_MASK, NULL, HFILL } }, { &hf_aas_beam_resolution_parameter, { "Resolution Parameter", "wmx.aas_beam.resolution_parameter", FT_UINT8, BASE_DEC, VALS(vals_resolution_parameter), AAS_BEAM_RESOLUTION_PARAMETER_MASK, NULL, HFILL } }, { &hf_aas_beam_rssi_value, { "RSSI Mean Value", "wmx.aas_beam.rssi_mean_value", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } }, #endif #if 0 { &hf_aas_beam_unknown_type, { "Unknown TLV type", "wmx.aas_beam.unknown_type", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } } #endif }; /* 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, }; proto_mac_mgmt_msg_aas_beam_decoder = proto_register_protocol ( "WiMax AAS-BEAM Messages", /* name */ "WiMax AAS-BEAM", /* short name */ "wmx.aas_beam" /* abbrev */ ); 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 proto_reg_handoff_mac_mgmt_msg_aas_beam(void) { dissector_handle_t aas_handle; aas_handle = create_dissector_handle(dissect_mac_mgmt_msg_aas_beam_select_decoder, proto_mac_mgmt_msg_aas_beam_decoder); dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_AAS_BEAM_SELECT, aas_handle); }