/* msg_prc_lt_ctrl.c * WiMax MAC Management PRC-LT-CTRL Message decoders * * Copyright (c) 2007 by Intel Corporation. * * Author: John R. Underwood * * $Id$ * * 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ /* Include files */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include "moduleinfo.h" #include #include #include #include "crc.h" #include "wimax_tlv.h" #include "wimax_mac.h" extern gint man_ofdma; /* Forward reference */ void dissect_mac_mgmt_msg_prc_lt_ctrl_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); static gint proto_mac_mgmt_msg_prc_lt_ctrl_decoder = -1; static gint ett_mac_mgmt_msg_prc_lt_ctrl_decoder = -1; /* Setup protocol subtree array */ static gint *ett[] = { &ett_mac_mgmt_msg_prc_lt_ctrl_decoder, }; /* PRC-LT-CTRL fields */ static gint hf_prc_lt_ctrl_message_type = -1; static gint hf_prc_lt_ctrl_precoding = -1; static gint hf_prc_lt_ctrl_precoding_delay = -1; static gint hf_prc_lt_ctrl_invalid_tlv = -1; static const value_string vals_turn_on[] = { {0, "Turn off"}, {1, "Turn on"}, {0, NULL} }; /* PRC-LT-CTRL fields display */ static hf_register_info hf[] = { { &hf_prc_lt_ctrl_message_type, { "MAC Management Message Type", "wmx.macmgtmsgtype.prc_lt_ctrl", FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL } }, { &hf_prc_lt_ctrl_invalid_tlv, { "Invalid TLV", "wmx.prc_lt_ctrl.invalid_tlv", FT_BYTES, BASE_HEX, NULL, 0, "", HFILL } }, { &hf_prc_lt_ctrl_precoding, { "Setup/Tear-down long-term precoding with feedback", "wimax.prc_lt_ctrl.precoding", FT_UINT8, BASE_DEC, VALS(&vals_turn_on), 0x80, "", HFILL } }, { &hf_prc_lt_ctrl_precoding_delay, { "BS precoding application delay", "wimax.prc_lt_ctrl.precoding_delay", FT_UINT8, BASE_DEC, NULL, 0x60, "", HFILL } } }; /* Register Wimax Mac Payload Protocol and Dissector */ void proto_register_mac_mgmt_msg_prc_lt_ctrl(void) { if (proto_mac_mgmt_msg_prc_lt_ctrl_decoder == -1) { proto_mac_mgmt_msg_prc_lt_ctrl_decoder = proto_register_protocol ( "WiMax PRC-LT-CTRL Message", /* name */ "WiMax PRC-LT-CTRL (prc)", /* short name */ "wmx.prc" /* abbrev */ ); proto_register_field_array(proto_mac_mgmt_msg_prc_lt_ctrl_decoder, hf, array_length(hf)); proto_register_subtree_array(ett, array_length(ett)); } } /* Decode PRC-LT-CTRL messages. */ void dissect_mac_mgmt_msg_prc_lt_ctrl_decoder(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree) { guint offset = 0; guint tvb_len, payload_type; proto_item *prc_lt_ctrl_item = NULL; proto_tree *prc_lt_ctrl_tree = NULL; /* Ensure the right payload type */ payload_type = tvb_get_guint8(tvb, 0); if(payload_type != MAC_MGMT_MSG_PRC_LT_CTRL) { return; } if (tree) { /* we are being asked for details */ /* Get the tvb reported length */ tvb_len = tvb_reported_length(tvb); /* display MAC payload type PRC-LT-CTRL */ prc_lt_ctrl_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_prc_lt_ctrl_decoder, tvb, 0, tvb_len, "MAC Management Message, PRC-LT-CTRL (65)"); /* add MAC PRC-LT-CTRL subtree */ prc_lt_ctrl_tree = proto_item_add_subtree(prc_lt_ctrl_item, ett_mac_mgmt_msg_prc_lt_ctrl_decoder); /* display the Message Type */ proto_tree_add_item(prc_lt_ctrl_tree, hf_prc_lt_ctrl_message_type, tvb, offset, 1, FALSE); offset ++; /* display whether to Setup or Tear-down the * long-term MIMO precoding delay */ proto_tree_add_item(prc_lt_ctrl_tree, hf_prc_lt_ctrl_precoding, tvb, offset, 1, FALSE); /* display the Precoding Delay */ proto_tree_add_item(prc_lt_ctrl_tree, hf_prc_lt_ctrl_precoding_delay, tvb, offset, 1, FALSE); } }