diff options
Diffstat (limited to 'plugins/wimax/msg_clk_cmp.c')
| -rw-r--r-- | plugins/wimax/msg_clk_cmp.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/plugins/wimax/msg_clk_cmp.c b/plugins/wimax/msg_clk_cmp.c new file mode 100644 index 0000000000..8b2b2e047c --- /dev/null +++ b/plugins/wimax/msg_clk_cmp.c @@ -0,0 +1,169 @@ +/* msg_clk_cmp.c + * WiMax MAC Management CLK_CMP Message decoders + * + * Copyright (c) 2007 by Intel Corporation. + * + * Author: Lu Pan <lu.pan@intel.com> + * + * $Id$ + * + * 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. + */ + +/* Include files */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <gmodule.h> +#include <epan/packet.h> +#include <epan/prefs.h> +#include "wimax_mac.h" + +/* Forward reference */ +void dissect_mac_mgmt_msg_clk_cmp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); + +static gint proto_mac_mgmt_msg_clk_cmp_decoder = -1; + +static gint ett_mac_mgmt_msg_clk_cmp_decoder = -1; + +/* Setup protocol subtree array */ +static gint *ett[] = +{ + &ett_mac_mgmt_msg_clk_cmp_decoder, +}; + +/* CLK_CMP fields */ +static gint hf_clk_cmp_message_type = -1; +static gint hf_clk_cmp_clock_count = -1; +static gint hf_clk_cmp_clock_id = -1; +static gint hf_clk_cmp_seq_number = -1; +static gint hf_clk_cmp_comparision_value = -1; +static gint hf_clk_cmp_invalid_tlv = -1; + +/* CLK_CMP fields display */ +static hf_register_info hf_clk_cmp[] = +{ + { + &hf_clk_cmp_message_type, + { + "MAC Management Message Type", "wimax.macmgtmsgtype.clk_cmp", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_clk_cmp_clock_count, + { + "Clock Count", "wimax.clk_cmp.clock_count", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_clk_cmp_clock_id, + { + "Clock ID", "wimax.clk_cmp.clock_id", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_clk_cmp_comparision_value, + { + "Comparision Value", "wimax.clk_cmp.comparision_value", + FT_INT8, BASE_DEC, NULL, 0x0, "", HFILL + } + }, + { + &hf_clk_cmp_invalid_tlv, + { + "Invalid TLV", "wimax.clk_cmp.invalid_tlv", + FT_BYTES, BASE_HEX, NULL, 0, "", HFILL + } + }, + { + &hf_clk_cmp_seq_number, + { + "Sequence Number", "wimax.clk_cmp.seq_number", + FT_UINT8, BASE_DEC, NULL, 0x0, "", HFILL + } + } +}; + + +/* Register Wimax Mac Payload Protocol and Dissector */ +void proto_register_mac_mgmt_msg_clk_cmp(void) +{ + if (proto_mac_mgmt_msg_clk_cmp_decoder == -1) { + proto_mac_mgmt_msg_clk_cmp_decoder = proto_register_protocol ( + "WiMax CLK-CMP Message", /* name */ + "WiMax CLK-CMP (clk)", /* short name */ + "clk" /* abbrev */ + ); + + proto_register_field_array(proto_mac_mgmt_msg_clk_cmp_decoder, hf_clk_cmp, array_length(hf_clk_cmp)); + proto_register_subtree_array(ett, array_length(ett)); + } +} + +/* Decode CLK_CMP messages. */ +void dissect_mac_mgmt_msg_clk_cmp_decoder(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree) +{ + guint offset = 0; + guint i; + guint clock_count; + guint tvb_len, payload_type; + proto_item *clk_cmp_item = NULL; + proto_tree *clk_cmp_tree = NULL; + + /* Ensure the right payload type */ + payload_type = tvb_get_guint8(tvb, 0); + if(payload_type != MAC_MGMT_MSG_CLK_CMP) + { + return; + } + + if (tree) + { /* we are being asked for details */ + /* Get the tvb length */ + tvb_len = tvb_length(tvb); + /* display MAC payload type CLK_CMP */ + clk_cmp_item = proto_tree_add_protocol_format(tree, proto_mac_mgmt_msg_clk_cmp_decoder, tvb, offset, tvb_len, "Clock Comparision (CLK-CMP) (%u bytes)", tvb_len); + /* add MAC CLK_CMP subtree */ + clk_cmp_tree = proto_item_add_subtree(clk_cmp_item, ett_mac_mgmt_msg_clk_cmp_decoder); + /* display the Message Type */ + proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_message_type, tvb, offset, 1, FALSE); + /* set the offset for clock count */ + offset ++; + /* get the clock count */ + clock_count = tvb_get_guint8(tvb, offset); + /* display the clock count */ + proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_clock_count, tvb, offset, 1, FALSE); + /* set the offset for clock comparision */ + offset++; + for (i = 0; i < clock_count; i++ ) + { /* display the Clock ID */ + proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_clock_id, tvb, offset++, 1, FALSE); + /* display the sequence number */ + proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_seq_number, tvb, offset++, 1, FALSE); + /* display the comparision value */ + proto_tree_add_item(clk_cmp_tree, hf_clk_cmp_comparision_value, tvb, offset++, 1, FALSE); + } + } +} + |