diff options
Diffstat (limited to 'plugins/epan/wimax/msg_aas_fbck.c')
| -rw-r--r-- | plugins/epan/wimax/msg_aas_fbck.c | 361 |
1 files changed, 361 insertions, 0 deletions
diff --git a/plugins/epan/wimax/msg_aas_fbck.c b/plugins/epan/wimax/msg_aas_fbck.c new file mode 100644 index 0000000000..311e608b48 --- /dev/null +++ b/plugins/epan/wimax/msg_aas_fbck.c @@ -0,0 +1,361 @@ +/* msg_aas_beam.c + * WiMax MAC Management AAS-BEAM-SELECT/REQ/RSP Messages decoders + * + * Copyright (c) 2007 by Intel Corporation. + * + * Author: Lu Pan <lu.pan@intel.com> + * + * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +/* Include files */ + +#include "config.h" + +#include <epan/packet.h> +#include "wimax_mac.h" + +#define OFDMA_AAS_FBCK_REQ_NUMBER_OF_FRAME_MASK 0xFE +#define OFDMA_AAS_FBCK_REQ_DATA_TYPE_MASK 0x01 +#define OFDMA_AAS_FBCK_REQ_FB_REQ_COUNTER_MASK 0xE0 +#define OFDMA_AAS_FBCK_REQ_FB_REQ_RESOLUTION_MASK 0x18 +#define OFDMA_AAS_FBCK_REQ_FB_REQ_RESERVED_MASK 0x07 + +#define OFDMA_AAS_FBCK_REQ_FB_RSP_RESERVED_MASK 0xC0 +#define OFDMA_AAS_FBCK_RSP_DATA_TYPE_MASK 0x20 +#define OFDMA_AAS_FBCK_REQ_FB_RSP_COUNTER_MASK 0x1C +#define OFDMA_AAS_FBCK_REQ_FB_RSP_RESOLUTION_MASK 0x03 + +void proto_register_mac_mgmt_msg_aas_fbck(void); +void proto_reg_handoff_mac_mgmt_msg_aas(void); + +static gint proto_mac_mgmt_msg_aas_fbck_decoder = -1; +static gint ett_mac_mgmt_msg_aas_fbck_req_decoder = -1; +static gint ett_mac_mgmt_msg_aas_fbck_rsp_decoder = -1; + +static const value_string vals_data_types[] = +{ + {0, "measure on downlink preamble only"}, + {1, "measure on downlink data (for this SS) only"}, + {0, NULL} +}; + +static const value_string vals_resolutions_0[] = +{ + {0, "32 subcarriers"}, + {1, "64 subcarriers"}, + {2, "128 subcarriers"}, + {3, "256 subcarriers"}, + {0, NULL} +}; + +static const value_string vals_resolutions_1[] = +{ + {0, "1 subcarrier"}, + {1, "4 subcarriers"}, + {2, "8 subcarriers"}, + {3, "16 subcarriers"}, + {0, NULL} +}; + +/* fix fields */ +/* static int hf_aas_fbck_unknown_type = -1; */ +static int hf_aas_fbck_frame_number = -1; +static int hf_aas_fbck_number_of_frames = -1; +static int hf_aas_fbck_req_data_type = -1; +static int hf_aas_fbck_rsp_data_type = -1; +static int hf_aas_fbck_req_counter = -1; +static int hf_aas_fbck_rsp_counter = -1; +static int hf_aas_fbck_req_resolution_0 = -1; +static int hf_aas_fbck_rsp_resolution_0 = -1; +static int hf_aas_fbck_req_resolution_1 = -1; +static int hf_aas_fbck_rsp_resolution_1 = -1; +static int hf_aas_fbck_req_reserved = -1; +static int hf_aas_fbck_rsp_reserved = -1; +static int hf_aas_fbck_freq_value_re = -1; +static int hf_aas_fbck_freq_value_im = -1; +static int hf_aas_fbck_rssi_value = -1; +static int hf_aas_fbck_cinr_value = -1; + + +static int dissect_mac_mgmt_msg_aas_fbck_req_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_) +{ + guint offset = 0; + guint data_type; + proto_item *aas_fbck_item; + proto_tree *aas_fbck_tree; + + { /* we are being asked for details */ + + /* display MAC message type */ + aas_fbck_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_fbck_decoder, tvb, offset, -1, "AAS Channel Feedback Request (AAS-FBCK-REQ)"); + /* add subtree */ + aas_fbck_tree = proto_item_add_subtree(aas_fbck_item, ett_mac_mgmt_msg_aas_fbck_req_decoder); + /* Display the AAS-FBCK-REQ message type */ + + /* Decode and display the AAS-FBCK-REQ message body */ + /* display the Frame Number */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_frame_number, tvb, offset, 1, ENC_BIG_ENDIAN); + /* move to next field */ + offset++; + /* get the data type */ + data_type = tvb_get_guint8(tvb, offset); + /* display the number of Frames */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_number_of_frames, tvb, offset, 1, ENC_BIG_ENDIAN); + /* display the Data Type */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_req_data_type, tvb, offset, 1, ENC_BIG_ENDIAN); + /* move to next field */ + offset++; + /* display the Feedback Request Counter */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_req_counter, tvb, offset, 1, ENC_BIG_ENDIAN); + /* display the Frequency Measurement Resolution */ + if(data_type & OFDMA_AAS_FBCK_REQ_DATA_TYPE_MASK) + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_req_resolution_1, tvb, offset, 1, ENC_BIG_ENDIAN); + else + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_req_resolution_0, tvb, offset, 1, ENC_BIG_ENDIAN); + /* display the reserved fields */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_req_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); + } + return tvb_captured_length(tvb); +} + +static int dissect_mac_mgmt_msg_aas_fbck_rsp_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, void* data _U_) +{ + guint offset = 0; + guint tvb_len, data_type; + proto_item *aas_fbck_item; + proto_tree *aas_fbck_tree; + + { /* we are being asked for details */ + + /* Get the tvb reported length */ + tvb_len = tvb_reported_length(tvb); + /* display MAC message type */ + aas_fbck_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_aas_fbck_decoder, tvb, offset, -1, "AAS Channel Feedback Response (AAS-FBCK-RSP)"); + /* add subtree */ + aas_fbck_tree = proto_item_add_subtree(aas_fbck_item, ett_mac_mgmt_msg_aas_fbck_rsp_decoder); + /* Display the AAS-FBCK-RSP message type */ + + /* get the data type */ + data_type = tvb_get_guint8(tvb, offset); + /* Decode and display the AAS-FBCK-RSP message body */ + /* display the reserved fields */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_rsp_reserved, tvb, offset, 1, ENC_BIG_ENDIAN); + /* display the Data Type */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_rsp_data_type, tvb, offset, 1, ENC_BIG_ENDIAN); + /* display the Feedback Request Counter */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_rsp_counter, tvb, offset, 1, ENC_BIG_ENDIAN); + /* display the Frequency Measurement Resolution */ + if(data_type & OFDMA_AAS_FBCK_RSP_DATA_TYPE_MASK) + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_rsp_resolution_1, tvb, offset, 1, ENC_BIG_ENDIAN); + else + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_rsp_resolution_0, tvb, offset, 1, ENC_BIG_ENDIAN); + /* move to next field */ + offset++; + for(; offset < (tvb_len - 2); ) + { + /* display the Frequency Value (real part) */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_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_fbck_tree, hf_aas_fbck_freq_value_im, tvb, offset, 1, ENC_BIG_ENDIAN); + /* move to next field */ + offset++; + } + /* display the RSSI Mean Value */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_rssi_value, tvb, offset, 1, ENC_BIG_ENDIAN); + /* move to next field */ + offset++; + /* display the CINR Mean Value */ + proto_tree_add_item(aas_fbck_tree, hf_aas_fbck_cinr_value, tvb, offset, 1, ENC_BIG_ENDIAN); + } + return tvb_captured_length(tvb); +} + +/* Register Wimax Mac Payload Protocol and Dissector */ +void proto_register_mac_mgmt_msg_aas_fbck(void) +{ + /* AAS-FBCK display */ + static hf_register_info hf_aas_fbck[] = + { + { + &hf_aas_fbck_cinr_value, + { + "CINR Mean Value", "wmx.aas_fbck.cinr_mean_value", + FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL + } + }, + { + &hf_aas_fbck_req_counter, + { + "Feedback Request Counter", "wmx.aas_fbck.counter", + FT_UINT8, BASE_DEC, NULL, OFDMA_AAS_FBCK_REQ_FB_REQ_COUNTER_MASK, NULL, HFILL + } + }, + { + &hf_aas_fbck_frame_number, + { + "Frame Number", "wmx.aas_fbck.frame_number", + FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL + } + }, + { + &hf_aas_fbck_freq_value_re, + { + "Frequency Value (real part)", "wmx.aas_fbck.freq_value_re", + FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL + } + }, + { + &hf_aas_fbck_freq_value_im, + { + "Frequency Value (imaginary part)", "wmx.aas_fbck.freq_value_im", + FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL + } + }, + { + &hf_aas_fbck_number_of_frames, + { + "Number Of Frames", "wmx.aas_fbck.number_of_frames", + FT_UINT8, BASE_DEC, NULL, OFDMA_AAS_FBCK_REQ_NUMBER_OF_FRAME_MASK, NULL, HFILL + } + }, + { + &hf_aas_fbck_req_resolution_0, + { + "Frequency Measurement Resolution", "wmx.aas_fbck.resolution", + FT_UINT8, BASE_DEC, VALS(vals_resolutions_0), OFDMA_AAS_FBCK_REQ_FB_REQ_RESOLUTION_MASK, NULL, HFILL + } + }, + { + &hf_aas_fbck_req_resolution_1, + { + "Frequency Measurement Resolution", "wmx.aas_fbck.resolution", + FT_UINT8, BASE_DEC, VALS(vals_resolutions_1), OFDMA_AAS_FBCK_REQ_FB_REQ_RESOLUTION_MASK, NULL, HFILL + } + }, + { + &hf_aas_fbck_rssi_value, + { + "RSSI Mean Value", "wmx.aas_fbck.rssi_mean_value", + FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL + } + }, +#if 0 + { + &hf_aas_fbck_unknown_type, + { + "Unknown TLV type", "wmx.aas_fbck.unknown_type", + FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL + } + }, +#endif + { + &hf_aas_fbck_req_data_type, + { + "Measurement Data Type", "wmx.aas_fbck_req.data_type", + FT_UINT8, BASE_DEC, VALS(vals_data_types), OFDMA_AAS_FBCK_REQ_DATA_TYPE_MASK, NULL, HFILL + } + }, + { + &hf_aas_fbck_req_reserved, + { + "Reserved", "wmx.aas_fbck_req.reserved", + FT_UINT8, BASE_HEX, NULL, OFDMA_AAS_FBCK_REQ_FB_REQ_RESERVED_MASK, NULL, HFILL + } + }, + { + &hf_aas_fbck_rsp_counter, + { + "Feedback Request Counter", "wmx.aas_fbck_rsp.counter", + FT_UINT8, BASE_DEC, NULL, OFDMA_AAS_FBCK_REQ_FB_RSP_COUNTER_MASK, NULL, HFILL + } + }, + { + &hf_aas_fbck_rsp_data_type, + { + "Measurement Data Type", "wmx.aas_fbck_rsp.data_type", + FT_UINT8, BASE_DEC, VALS(vals_data_types), OFDMA_AAS_FBCK_RSP_DATA_TYPE_MASK, NULL, HFILL + } + }, + { + &hf_aas_fbck_rsp_reserved, + { + "Reserved", "wmx.aas_fbck_rsp.reserved", + FT_UINT8, BASE_HEX, NULL, OFDMA_AAS_FBCK_REQ_FB_RSP_RESERVED_MASK, NULL, HFILL + } + }, + { + &hf_aas_fbck_rsp_resolution_0, + { + "Frequency Measurement Resolution", "wmx.aas_fbck_rsp.resolution", + FT_UINT8, BASE_DEC, VALS(vals_resolutions_0), OFDMA_AAS_FBCK_REQ_FB_RSP_RESOLUTION_MASK, NULL, HFILL + } + }, + { + &hf_aas_fbck_rsp_resolution_1, + { + "Frequency Measurement Resolution", "wmx.aas_fbck_rsp.resolution", + FT_UINT8, BASE_DEC, VALS(vals_resolutions_1), OFDMA_AAS_FBCK_REQ_FB_RSP_RESOLUTION_MASK, NULL, HFILL + } + } + }; + + /* Setup protocol subtree array */ + static gint *ett[] = + { + &ett_mac_mgmt_msg_aas_fbck_req_decoder, + &ett_mac_mgmt_msg_aas_fbck_rsp_decoder, + }; + + proto_mac_mgmt_msg_aas_fbck_decoder = proto_register_protocol ( + "WiMax AAS-FEEDBACK Messages", /* name */ + "WiMax AAS-FEEDBACK (aas)", /* short name */ + "wmx.aas" /* abbrev */ + ); + + proto_register_field_array(proto_mac_mgmt_msg_aas_fbck_decoder, hf_aas_fbck, array_length(hf_aas_fbck)); + proto_register_subtree_array(ett, array_length(ett)); +} + +void +proto_reg_handoff_mac_mgmt_msg_aas(void) +{ + dissector_handle_t aas_handle; + + aas_handle = create_dissector_handle(dissect_mac_mgmt_msg_aas_fbck_req_decoder, proto_mac_mgmt_msg_aas_fbck_decoder); + dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_AAS_FBCK_REQ, aas_handle); + + aas_handle = create_dissector_handle(dissect_mac_mgmt_msg_aas_fbck_rsp_decoder, proto_mac_mgmt_msg_aas_fbck_decoder); + dissector_add_uint("wmx.mgmtmsg", MAC_MGMT_MSG_AAS_FBCK_RSP, aas_handle); +} + +/* + * Editor modelines - http://www.wireshark.org/tools/modelines.html + * + * Local variables: + * c-basic-offset: 8 + * tab-width: 8 + * indent-tabs-mode: t + * End: + * + * vi: set shiftwidth=8 tabstop=8 noexpandtab: + * :indentSize=8:tabSize=8:noTabs=false: + */ |