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wireshark/epan/dissectors/packet-homeplug.c

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/* packet-homeplug.c
* Routines for homeplug dissection
*
* Copyright 2006, Sebastien Tandel <sebastien[AT]tandel.be>
* Copyright 2009, Luca Ceresoli <luca[AT]lucaceresoli.net>
*
* $Id$
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 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.
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <glib.h>
#include <epan/packet.h>
#include <epan/etypes.h>
#include <epan/proto.h>
#include <epan/ptvcursor.h>
static int proto_homeplug = -1;
static int hf_homeplug_mctrl = -1;
static int hf_homeplug_mctrl_reserved = -1;
static int hf_homeplug_mctrl_ne = -1;
static int hf_homeplug_mehdr = -1;
static int hf_homeplug_mehdr_mev = -1;
static int hf_homeplug_mehdr_metype = -1;
static int hf_homeplug_melen = -1;
static int hf_homeplug_mme = -1;
/* Request Channel Estimation */
static int hf_homeplug_rce = -1;
static int hf_homeplug_rce_cev = -1;
static int hf_homeplug_rce_rsvd = -1;
/* Channel Estimation Response */
static int hf_homeplug_cer = -1;
static int hf_homeplug_cer_cerv = -1;
static int hf_homeplug_cer_rsvd1 = -1;
static int hf_homeplug_cer_rxtmi = -1;
static int hf_homeplug_cer_vt = -1;
static int hf_homeplug_cer_rate = -1;
static int hf_homeplug_cer_bp = -1;
static int hf_homeplug_cer_mod = -1;
static int hf_homeplug_cer_vt11 = -1;
static int hf_homeplug_cer_rsvd2 = -1;
static int hf_homeplug_cer_nbdas = -1;
static int hf_homeplug_cer_bda = -1;
/* Vendor Specific */
static int hf_homeplug_vs = -1;
static int hf_homeplug_vs_oui = -1;
static int hf_homeplug_vs_vd = -1;
/* Set Network Encryption Key */
static int hf_homeplug_snk = -1;
static int hf_homeplug_snk_eks = -1;
static int hf_homeplug_snk_nek = -1;
/* Request Parameters and Statistics */
static int hf_homeplug_rps = -1;
/* Parameters and Statistics Response */
static int hf_homeplug_psr = -1;
static int hf_homeplug_psr_txack = -1;
static int hf_homeplug_psr_txnack = -1;
static int hf_homeplug_psr_txfail = -1;
static int hf_homeplug_psr_txcloss = -1;
static int hf_homeplug_psr_txcoll = -1;
static int hf_homeplug_psr_txca3lat = -1;
static int hf_homeplug_psr_txca2lat = -1;
static int hf_homeplug_psr_txca1lat = -1;
static int hf_homeplug_psr_txca0lat = -1;
static int hf_homeplug_psr_rxbp40 = -1;
/* Set Local Parameters */
static int hf_homeplug_slp = -1;
static int hf_homeplug_slp_ma = -1;
/* Network Statistics */
static int hf_homeplug_ns = -1;
static int hf_homeplug_ns_extended = -1;
/* Basic */
static int hf_homeplug_ns_netw_ctrl_ac = -1;
static int hf_homeplug_ns_netw_ctrl_icid = -1;
static int hf_homeplug_ns_bytes40_robo = -1;
static int hf_homeplug_ns_fails_robo = -1;
static int hf_homeplug_ns_drops_robo = -1;
static int hf_homeplug_ns_netw_da = -1;
static int hf_homeplug_ns_bytes40 = -1;
static int hf_homeplug_ns_fails = -1;
static int hf_homeplug_ns_drops = -1;
/* Extended */
static int hf_homeplug_ns_tx_bfr_state = -1;
static int hf_homeplug_ns_buf_in_use = -1;
static int hf_homeplug_ns_prio = -1;
static int hf_homeplug_ns_msdu_len = -1;
static int hf_homeplug_ns_seqn = -1;
static int hf_homeplug_ns_toneidx = -1;
/* Bridging Characteristics Network */
static int hf_homeplug_bcn = -1;
static int hf_homeplug_bcn_network = -1;
static int hf_homeplug_bcn_return = -1;
static int hf_homeplug_bcn_rsvd = -1;
static int hf_homeplug_bcn_fbn = -1;
static int hf_homeplug_bcn_brda = -1;
static int hf_homeplug_bcn_bp_das = -1;
static int hf_homeplug_bcn_bp_da = -1;
/* Bridging Characteristics Local */
static int hf_homeplug_bcl = -1;
static int hf_homeplug_bcl_network = -1;
static int hf_homeplug_bcl_return = -1;
static int hf_homeplug_bcl_rsvd = -1;
static int hf_homeplug_bcl_hprox_das= -1;
static int hf_homeplug_bcl_hpbda = -1;
/* Set Transmit Characteristics */
static int hf_homeplug_stc = -1;
static int hf_homeplug_stc_lco = -1;
static int hf_homeplug_stc_encf = -1;
static int hf_homeplug_stc_txprio = -1;
static int hf_homeplug_stc_rexp = -1;
static int hf_homeplug_stc_txcf = -1;
static int hf_homeplug_stc_cftop = -1;
static int hf_homeplug_stc_rsvd1 = -1;
static int hf_homeplug_stc_retry = -1;
static int hf_homeplug_stc_rsvd2 = -1;
static int hf_homeplug_stc_dder = -1;
static int hf_homeplug_stc_dur = -1;
static int hf_homeplug_stc_ebp = -1;
static int hf_homeplug_stc_dees = -1;
static int hf_homeplug_stc_txeks = -1;
static int hf_homeplug_data = -1;
static gint ett_homeplug = -1;
static gint ett_homeplug_mctrl = -1;
static gint ett_homeplug_mehdr = -1;
static gint ett_homeplug_rce = -1;
static gint ett_homeplug_cer = -1;
static gint ett_homeplug_vs = -1;
static gint ett_homeplug_snk = -1;
static gint ett_homeplug_rps = -1;
static gint ett_homeplug_psr = -1;
static gint ett_homeplug_slp = -1;
static gint ett_homeplug_ns = -1;
static gint ett_homeplug_tone = -1;
static gint ett_homeplug_tx_bfr_state = -1;
static gint ett_homeplug_bridge = -1;
static gint ett_homeplug_bcn = -1;
static gint ett_homeplug_bcl = -1;
static gint ett_homeplug_stc = -1;
static guint8 homeplug_ne = 0;
static guint8 homeplug_melen = 0;
static guint8 homeplug_metype = 0;
static guint32 homeplug_offset = 0;
/* METYPE Values */
#define HOMEPLUG_MME_RCE 0x00
#define HOMEPLUG_MME_CER 0x01
#define HOMEPLUG_MME_VS 0x02
#define HOMEPLUG_MME_RBA 0x03
#define HOMEPLUG_MME_SNK 0x04
#define HOMEPLUG_MME_MWR 0x05
#define HOMEPLUG_MME_CNK 0x06
#define HOMEPLUG_MME_RPS 0x07
#define HOMEPLUG_MME_PSR 0x08
#define HOMEPLUG_MME_SLP 0x19
#define HOMEPLUG_MME_NS 0x1A
#define HOMEPLUG_MME_RES 0x1B
#define HOMEPLUG_MME_PS 0x1C
#define HOMEPLUG_MME_SLO 0x1D
#define HOMEPLUG_MME_BC 0x1E
#define HOMEPLUG_MME_STC 0x1F
static const value_string homeplug_metype_vals[] = {
{ HOMEPLUG_MME_RCE, "Request Channel Estimation" },
{ HOMEPLUG_MME_CER, "Channel Estimation Response" },
{ HOMEPLUG_MME_VS , "Vendor Specific" },
{ HOMEPLUG_MME_RBA, "Replace Bridge Address" },
{ HOMEPLUG_MME_SNK, "Set Network Encryption Key" },
{ HOMEPLUG_MME_MWR, "Multicast With Response" },
{ HOMEPLUG_MME_CNK, "Confirm Network Encryption Key" },
{ HOMEPLUG_MME_RPS, "Request Parameters and Statistics" },
{ HOMEPLUG_MME_PSR, "Parameters and Statistics Response" },
{ HOMEPLUG_MME_SLP, "Set Local Parameters" },
{ HOMEPLUG_MME_NS , "Network Statistics" },
{ HOMEPLUG_MME_RES, "Reserved" },
{ HOMEPLUG_MME_PS , "Performance Statistics" },
{ HOMEPLUG_MME_SLO, "Set Local Overrides" },
{ HOMEPLUG_MME_BC , "Bridging Characteristics" },
{ HOMEPLUG_MME_STC, "Set Transmit Characteristics" },
{ 0, NULL }
};
/* Bit mask Operation */
#define HOMEPLUG_MCTRL_RSVD 0x80
#define HOMEPLUG_MCTRL_NE 0x7F
#define HOMEPLUG_MEHDR_MEV 0xE0
#define HOMEPLUG_MEHDR_METYPE 0x1F
#define HOMEPLUG_NS_AC 0x80
#define HOMEPLUG_NS_ICID 0x7F
#define HOMEPLUG_NS_BUF_IN_USE 0x80
#define HOMEPLUG_NS_PRIO 0x60
#define HOMEPLUG_NS_MSDU_LEN 0x1F
#define HOMEPLUG_NS_SEQN 0xF0
#define HOMEPLUG_NS_TONEIDX 0x0F
/* string values in function of AC */
static const true_false_string homeplug_ns_ac_vals = {
"(from host) Return basic network statistics",
"(from host) Clear basic network statistics"
};
/* string values in function of BUF_IN_USE */
static const true_false_string homeplug_ns_buf_in_use_vals = {
"Buffer is in use",
"Buffer is available"
};
#define HOMEPLUG_RCE_CEV 0xF0
#define HOMEPLUG_RCE_RSVD 0x0F
#define HOMEPLUG_CER_CERV 0xF0
#define HOMEPLUG_CER_RSVD 0x0FE0
#define HOMEPLUG_CER_RXTMI 0x1F
#define HOMEPLUG_CER_RATE 0x80
#define HOMEPLUG_CER_BP 0x40
#define HOMEPLUG_CER_VT11 0x0F
#define HOMEPLUG_CER_RSVD2 0x80
#define HOMEPLUG_CER_NBDAS 0x7F
#define HOMEPLUG_BC_NETWORK 0x80
#define HOMEPLUG_BC_RETURN 0x40
#define HOMEPLUG_BCL_RSVD 0x3F
#define HOMEPLUG_BCN_RSVD 0x30
#define HOMEPLUG_BCN_FBN 0x0F
/* string values in function of BC_NETWORK */
static const true_false_string homeplug_bc_network_vals = {
"Network bridge information",
"Local bridge information"
};
/* string values in function of BC_RETURN */
static const true_false_string homeplug_bc_return_vals = {
"Return bridging characteristics",
"Set bridging characteristics"
};
#define HOMEPLUG_STC_LCO 0x80
#define HOMEPLUG_STC_ENCF 0x40
#define HOMEPLUG_STC_TXPRIO 0x30
#define HOMEPLUG_STC_REXP 0x08
#define HOMEPLUG_STC_TXCF 0x04
#define HOMEPLUG_STC_CFTOP 0x02
#define HOMEPLUG_STC_RSVD1 0x01
#define HOMEPLUG_STC_RETRY 0xC0
#define HOMEPLUG_STC_RSVD2 0x30
#define HOMEPLUG_STC_DDER 0x08
#define HOMEPLUG_STC_DUR 0x04
#define HOMEPLUG_STC_EBP 0x02
#define HOMEPLUG_STC_DEES 0x01
/* string values in function of CFTOP */
static const true_false_string homeplug_stc_cftop_vals = {
"CA2",
"CA3"
};
/* string values in function of RETRY */
static const value_string homeplug_stc_retry_vals[] = {
{ 0, "No retries"},
{ 1, "One retry only"},
{ 2, "Normal retries based on specification"},
{ 3, "Reserved"},
{ 0, NULL}
};
/* Length of Network Statistics Response defines whether it is the Basic or
* the Extended Response */
#define HOMEPLUG_NS_BASIC_LEN 187
#define HOMEPLUG_NS_EXT_LEN 199
/* IC_ID Values */
#define HOMEPLUG_NS_ICID5130A1 0x00
#define HOMEPLUG_NS_ICID51X1USB 0x01
#define HOMEPLUG_NS_ICID51X1PHY 0x02
#define HOMEPLUG_NS_ICID51X1HOST 0x03
#define HOMEPLUG_NS_ICID5130A2 0x04
#define HOMEPLUG_NS_ICID_RSVD_MIN 0x05
#define HOMEPLUG_NS_ICID_RSVD_MAX 0x7F
/* string values in function of IC_ID values */
static const range_string homeplug_ns_icid_vals[] = {
{ HOMEPLUG_NS_ICID5130A1, HOMEPLUG_NS_ICID5130A1, "INT5130A1" },
{ HOMEPLUG_NS_ICID51X1USB, HOMEPLUG_NS_ICID51X1USB, "INT51X1 (USB Option)" },
{ HOMEPLUG_NS_ICID51X1PHY, HOMEPLUG_NS_ICID51X1PHY, "INT51X1 (PHY Option)" },
{ HOMEPLUG_NS_ICID51X1HOST, HOMEPLUG_NS_ICID51X1HOST, "INT51X1 (Host/DTE Option)" },
{ HOMEPLUG_NS_ICID5130A2, HOMEPLUG_NS_ICID5130A2, "INT5130A2" },
{ HOMEPLUG_NS_ICID_RSVD_MIN, HOMEPLUG_NS_ICID_RSVD_MAX, "Reserved"},
{ 0, 0, NULL }
};
/* Modulation Method Bit Mask */
#define HOMEPLUG_CER_MOD_MASK 0x30
/* Modulation Method Values */
#define HOMEPLUG_CER_MOD_ROBO 0x00
#define HOMEPLUG_CER_MOD_DBPSK 0x01
#define HOMEPLUG_CER_MOD_DQPSK 0x02
#define HOMEPLUG_CER_MOD_RSVD 0x03
/* string values in function of Modulation Method Values */
static const value_string homeplug_cer_mod_vals[] = {
{ HOMEPLUG_CER_MOD_ROBO, "ROBO Modulation"},
{ HOMEPLUG_CER_MOD_DBPSK, "DBPSK Modulation"},
{ HOMEPLUG_CER_MOD_DQPSK, "DQPSK Modulation"},
{ HOMEPLUG_CER_MOD_RSVD, "Reserved"},
{ 0, NULL}
};
/* Constants used by various MMEs */
#define HOMEPLUG_ADDR_INEXISTANT G_GINT64_CONSTANT(010000000000U)
/* string values in function of TXPRIO */
static const value_string homeplug_txprio_vals[] = {
{ 0, "CA0"},
{ 1, "CA1"},
{ 2, "CA2"},
{ 3, "CA3"},
{ 0, NULL}
};
#define HOMEPLUG_MCTRL_LEN 1
#define HOMEPLUG_MEHDR_LEN 1
#define HOMEPLUG_MELEN_LEN 1
void
proto_register_homeplug(void)
{
static hf_register_info hf[] = {
/* MAC Control Field */
{ &hf_homeplug_mctrl,
{ "MAC Control Field", "homeplug.mctrl",
FT_NONE, BASE_NONE, NULL, 0x0, "MAC Control Field", HFILL }
},
{ &hf_homeplug_mctrl_reserved,
{ "Reserved", "homeplug.mctrl.rsvd",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_MCTRL_RSVD, "Reserved", HFILL }
},
{ &hf_homeplug_mctrl_ne,
{ "Number of MAC Data Entries", "homeplug.mctrl.ne",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_MCTRL_NE, "Number of MAC Data Entries", HFILL }
},
/* MAC Entry Header */
{ &hf_homeplug_mehdr,
{ "MAC Management Entry Header", "homeplug.mehdr",
FT_NONE, BASE_NONE, NULL, 0x0, "MAC Management Entry Header", HFILL }
},
{ &hf_homeplug_mehdr_mev,
{ "MAC Entry Version", "homeplug.mehdr.mev",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_MEHDR_MEV, "MAC Entry Version", HFILL }
},
{ &hf_homeplug_mehdr_metype,
{ "MAC Entry Type", "homeplug.mehdr.metype",
FT_UINT8, BASE_HEX, VALS(homeplug_metype_vals), HOMEPLUG_MEHDR_METYPE, "MAC Entry Type", HFILL }
},
/* MAC Entry Len */
{ &hf_homeplug_melen,
{ "MAC Management Entry Length", "homeplug.melen",
FT_UINT8, BASE_DEC, NULL, 0x0, "MAC Management Entry Length", HFILL }
},
/* MAC Management Entry */
{ &hf_homeplug_mme,
{ "MAC Management Entry Data", "homeplug.mmentry",
FT_UINT8, BASE_DEC, NULL, 0x0, "MAC Management Entry Data", HFILL }
},
/* Request Channel Estimation */
{ &hf_homeplug_rce,
{ "Request Channel Estimation", "homeplug.rce",
FT_NONE, BASE_NONE, NULL, 0x0, "Request Channel Estimation", HFILL }
},
{ &hf_homeplug_rce_cev,
{ "Channel Estimation Version", "homeplug.rce.cev",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_RCE_CEV, "Channel Estimation Version", HFILL }
},
{ &hf_homeplug_rce_rsvd,
{ "Reserved", "homeplug.rce.rsvd",
FT_NONE, BASE_NONE, NULL, HOMEPLUG_RCE_RSVD, "Reserved", HFILL }
},
/* Channel Estimation Response */
{ &hf_homeplug_cer,
{ "Channel Estimation Response", "homeplug.cer",
FT_NONE, BASE_NONE, NULL, 0x0, "Channel Estimation Response", HFILL }
},
{ &hf_homeplug_cer_cerv,
{ "Channel Estimation Response Version", "homeplug.cer.cerv",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_CER_CERV, "Channel Estimation Response Version", HFILL }
},
{ &hf_homeplug_cer_rsvd1,
{ "Reserved", "homeplug.cer.rsvd1",
FT_NONE, BASE_NONE, NULL, HOMEPLUG_CER_RSVD, "Reserved", HFILL }
},
{ &hf_homeplug_cer_rxtmi,
{ "Receive Tone Map Index", "homeplug.cer.rxtmi",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_CER_RXTMI, "Receive Tone Map Index", HFILL }
},
/* TODO must append vt[79-0] */
{ &hf_homeplug_cer_vt,
{"Valid Tone Flags", "homeplug.cer.vt",
FT_UINT8, BASE_HEX, NULL, 0x0, "Valid Tone Flags", HFILL }
},
{ &hf_homeplug_cer_rate,
{ "FEC Rate", "homeplug.cer.rate",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_CER_RATE, "FEC Rate", HFILL }
},
{ &hf_homeplug_cer_bp,
{ "Bridge Proxy", "homeplug.cer.bp",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_CER_BP, "Bridge Proxy", HFILL }
},
{ &hf_homeplug_cer_mod,
{ "Modulation Method", "homeplug.cer.mod",
FT_UINT8, BASE_DEC, VALS(homeplug_cer_mod_vals), HOMEPLUG_CER_MOD_MASK,
"Modulation Method", HFILL }
},
{ &hf_homeplug_cer_vt11,
{ "Valid Tone Flags [83-80]", "homeplug.cer.vt11",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_CER_VT11, "Valid Tone Flags [83-80]", HFILL }
},
{ &hf_homeplug_cer_rsvd2,
{ "Reserved", "homeplug.cer.rsvd2",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_CER_RSVD2, "Reserved", HFILL }
},
{ &hf_homeplug_cer_nbdas,
{ "Number Bridged Destination Addresses", "homeplug.cer.nbdas",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_CER_NBDAS, "Number Bridged Destination Addresses", HFILL }
},
{ &hf_homeplug_cer_bda,
{ "Bridged Destination Address", "homeplug.cer.bda",
FT_ETHER, BASE_NONE, NULL, 0x0, "Bridged Destination Address", HFILL }
},
/* Vendor Specific */
{ &hf_homeplug_vs,
{ "Vendor Specific", "homeplug.vs",
FT_NONE, BASE_NONE, NULL, 0x0, "Vendor Specific", HFILL }
},
{ &hf_homeplug_vs_oui,
{ "OUI", "homeplug.vs.oui",
FT_BYTES, BASE_NONE, NULL, 0x0,
"Should be an IEEE assigned Organizationally Unique Identifier", HFILL }
},
{ &hf_homeplug_vs_vd,
{ "Vendor Defined", "homeplug.vs.vd",
FT_BYTES, BASE_NONE, NULL, 0x0, "Vendor Defined", HFILL }
},
/* Set Network Encryption Key */
{ &hf_homeplug_snk,
{ "Set Network Encryption Key", "homeplug.snk",
FT_NONE, BASE_NONE, NULL, 0x0, "Set Network Encryption Key", HFILL }
},
{ &hf_homeplug_snk_eks,
{ "Encryption Key Select", "homeplug.snk.eks",
FT_UINT8, BASE_DEC, NULL, 0x0, "Encryption Key Select", HFILL }
},
{ &hf_homeplug_snk_nek,
{ "Network Encryption Key", "homeplug.snk.nek",
FT_BYTES, BASE_NONE, NULL, 0x0, "Network Encryption Key", HFILL }
},
/* Request Parameters and Statistics */
{ &hf_homeplug_rps,
{ "Request Parameters and Statistics", "homeplug.rps",
FT_NONE, BASE_NONE, NULL, 0x0, "Request Parameters and Statistics", HFILL }
},
/* Parameters and Statistics Response */
{ &hf_homeplug_psr,
{ "Parameters and Statistics Response", "homeplug.psr",
FT_NONE, BASE_NONE, NULL, 0x0, "Parameters and Statistics Response", HFILL }
},
{ &hf_homeplug_psr_txack,
{ "Transmit ACK Counter", "homeplug.psr.txack",
FT_UINT16, BASE_DEC, NULL, 0x0, "Transmit ACK Counter", HFILL }
},
{ &hf_homeplug_psr_txnack,
{ "Transmit NACK Counter", "homeplug.psr.txnack",
FT_UINT16, BASE_DEC, NULL, 0x0, "Transmit NACK Counter", HFILL }
},
{ &hf_homeplug_psr_txfail,
{ "Transmit FAIL Counter", "homeplug.psr.txfail",
FT_UINT16, BASE_DEC, NULL, 0x0, "Transmit FAIL Counter", HFILL }
},
{ &hf_homeplug_psr_txcloss,
{ "Transmit Contention Loss Counter", "homeplug.psr.txcloss",
FT_UINT16, BASE_DEC, NULL, 0x0, "Transmit Contention Loss Counter", HFILL }
},
{ &hf_homeplug_psr_txcoll,
{ "Transmit Collision Counter", "homeplug.psr.txcoll",
FT_UINT16, BASE_DEC, NULL, 0x0, "Transmit Collision Counter", HFILL }
},
{ &hf_homeplug_psr_txca3lat,
{ "Transmit CA3 Latency Counter", "homeplug.psr.txca3lat",
FT_UINT16, BASE_DEC, NULL, 0x0, "Transmit CA3 Latency Counter", HFILL }
},
{ &hf_homeplug_psr_txca2lat,
{ "Transmit CA2 Latency Counter", "homeplug.psr.txca2lat",
FT_UINT16, BASE_DEC, NULL, 0x0, "Transmit CA2 Latency Counter", HFILL }
},
{ &hf_homeplug_psr_txca1lat,
{ "Transmit CA1 Latency Counter", "homeplug.psr.txca1lat",
FT_UINT16, BASE_DEC, NULL, 0x0, "Transmit CA1 Latency Counter", HFILL }
},
{ &hf_homeplug_psr_txca0lat,
{ "Transmit CA0 Latency Counter", "homeplug.psr.txca0lat",
FT_UINT16, BASE_DEC, NULL, 0x0, "Transmit CA0 Latency Counter", HFILL }
},
{ &hf_homeplug_psr_rxbp40,
{ "Receive Cumulative Bytes per 40-symbol", "homeplug.psr.rxbp40",
FT_UINT32, BASE_DEC, NULL, 0x0, "Receive Cumulative Bytes per 40-symbol", HFILL }
},
/* Set Local Parameters */
{ &hf_homeplug_slp,
{ "Set Local Parameters", "homeplug.slp",
FT_NONE, BASE_NONE, NULL, 0x0, "Set Local Parameters", HFILL }
},
{ &hf_homeplug_slp_ma,
{ "MAC Address", "homeplug.slp.ma",
FT_ETHER, BASE_NONE, NULL, 0x0, "MAC Address", HFILL }
},
/* Network Statistics */
{ &hf_homeplug_ns,
{ "Network Statistics", "homeplug.ns",
FT_NONE, BASE_NONE, NULL, 0x0, "Network Statistics", HFILL }
},
{ &hf_homeplug_ns_extended,
{ "Network Statistics is Extended", "homeplug.ns.extended",
FT_BOOLEAN, 8, NULL, 0x0, "Network Statistics is Extended (MELEN >= 199)", HFILL }
},
{ &hf_homeplug_ns_netw_ctrl_ac,
{ "Action Control", "homeplug.ns.ac",
FT_BOOLEAN, 8, TFS(&homeplug_ns_ac_vals), HOMEPLUG_NS_AC, "Action Control", HFILL }
},
{ &hf_homeplug_ns_netw_ctrl_icid,
{ "IC_ID", "homeplug.ns.icid",
FT_UINT8, BASE_HEX|BASE_RANGE_STRING, RVALS(homeplug_ns_icid_vals), HOMEPLUG_NS_ICID, "IC_ID", HFILL }
},
{ &hf_homeplug_ns_bytes40_robo,
{ "Bytes in 40 symbols in ROBO", "homeplug.ns.bytes40_robo",
FT_UINT16, BASE_DEC, NULL, 0x0, "Bytes in 40 symbols in ROBO", HFILL }
},
{ &hf_homeplug_ns_fails_robo,
{ "Fails Received in ROBO", "homeplug.ns.fails_robo",
FT_UINT16, BASE_DEC, NULL, 0x0, "Fails Received in ROBO", HFILL }
},
{ &hf_homeplug_ns_drops_robo,
{ "Frame Drops in ROBO", "homeplug.ns.drops_robo",
FT_UINT16, BASE_DEC, NULL, 0x0, "Frame Drops in ROBO", HFILL }
},
{ &hf_homeplug_ns_netw_da,
{ "Address of Network DA", "homeplug.ns.netw_da",
FT_ETHER, BASE_NONE, NULL, 0x0, "Address of Network DA", HFILL }
},
{ &hf_homeplug_ns_bytes40,
{ "Bytes in 40 symbols", "homeplug.ns.bytes40",
FT_UINT16, BASE_DEC, NULL, 0x0, "Bytes in 40 symbols", HFILL }
},
{ &hf_homeplug_ns_fails,
{ "Fails Received", "homeplug.ns.fails",
FT_UINT16, BASE_DEC, NULL, 0x0, "Fails Received", HFILL }
},
{ &hf_homeplug_ns_drops,
{ "Frame Drops", "homeplug.ns.drops",
FT_UINT16, BASE_DEC, NULL, 0x0, "Frame Drops", HFILL }
},
/* ... Extended */
{ &hf_homeplug_ns_tx_bfr_state,
{ "Transmit Buffer State", "homeplug.ns.tx_bfr_state",
FT_NONE, BASE_NONE, NULL, 0x0, "Transmit Buffer State", HFILL }
},
{ &hf_homeplug_ns_buf_in_use,
{ "Buffer in use", "homeplug.ns.buf_in_use",
FT_BOOLEAN, 8, TFS(&homeplug_ns_buf_in_use_vals), HOMEPLUG_NS_BUF_IN_USE,
"Buffer in use (1) or Available (0)", HFILL }
},
{ &hf_homeplug_ns_prio,
{ "Priority", "homeplug.ns.prio",
FT_UINT8, BASE_DEC, VALS(homeplug_txprio_vals), HOMEPLUG_NS_PRIO,
"Priority", HFILL }
},
{ &hf_homeplug_ns_msdu_len,
{ "MSDU Length", "homeplug.ns.msdu_len",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_NS_MSDU_LEN, "MSDU Length", HFILL }
},
{ &hf_homeplug_ns_seqn,
{ "Sequence Number", "homeplug.ns.seqn",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_NS_SEQN, "Sequence Number", HFILL }
},
{ &hf_homeplug_ns_toneidx,
{ "Transmit tone map index", "homeplug.ns.toneidx",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_NS_TONEIDX,
"Maps to the 16 statistics occurring earlier in this MME", HFILL }
},
/* Bridging Characteristics Network */
{ &hf_homeplug_bcn,
{ "Bridging Characteristics Network", "homeplug.bcn",
FT_NONE, BASE_NONE, NULL, 0x0, "Bridging Characteristics Network", HFILL }
},
{ &hf_homeplug_bcn_network,
{ "Network", "homeplug.bcn.network",
FT_BOOLEAN, 8, TFS(&homeplug_bc_network_vals), HOMEPLUG_BC_NETWORK,
"Local (0) or Network Bridge (1) Information", HFILL }
},
{ &hf_homeplug_bcn_return,
{ "Return/Set", "homeplug.bcn.return",
FT_BOOLEAN, 8, TFS(&homeplug_bc_return_vals), HOMEPLUG_BC_RETURN,
"From host: Return (1) or set bridging characteristics (0)", HFILL }
},
{ &hf_homeplug_bcn_rsvd,
{ "Reserved", "homeplug.bcn.rsvd",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_BCN_RSVD, "Reserved", HFILL }
},
{ &hf_homeplug_bcn_fbn,
{ "First Bridge Number", "homeplug.bcn.fbn",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_BCN_FBN, "First Bridge Number", HFILL }
},
{ &hf_homeplug_bcn_brda,
{ "Address of Bridge", "homeplug.bcn.brda",
FT_ETHER, BASE_HEX, NULL, 0x0, "Address of Bridge", HFILL }
},
{ &hf_homeplug_bcn_bp_das,
{ "Number of bridge proxied DAs", "homeplug.bcn.bp_das",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Number of bridge proxied DAs supported", HFILL }
},
{ &hf_homeplug_bcn_bp_da,
{ "Bridged DA", "homeplug.bcn.bp_da",
FT_ETHER, BASE_NONE, NULL, 0x0, "Bridged Destination Address", HFILL }
},
/* Bridging Characteristics Local */
{ &hf_homeplug_bcl,
{ "Bridging Characteristics Local", "homeplug.bcl",
FT_NONE, BASE_NONE, NULL, 0x0, "Bridging Characteristics Local", HFILL }
},
{ &hf_homeplug_bcl_network,
{ "Network/Local", "homeplug.bcl.network",
FT_BOOLEAN, 8, TFS(&homeplug_bc_network_vals), HOMEPLUG_BC_NETWORK,
"Local (0) or Network Bridge (1) Information", HFILL }
},
{ &hf_homeplug_bcl_return,
{ "Return/Set", "homeplug.bcl.return",
FT_BOOLEAN, 8, TFS(&homeplug_bc_return_vals), HOMEPLUG_BC_RETURN,
"From host: Return (1) or set bridging characteristics (0)", HFILL }
},
{ &hf_homeplug_bcl_rsvd,
{ "Reserved", "homeplug.bcl.rsvd",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_BCL_RSVD, "Reserved", HFILL }
},
{ &hf_homeplug_bcl_hprox_das,
{ "Number of host proxied DAs", "homeplug.bcl.hprox_das",
FT_UINT8, BASE_DEC, NULL, 0x0,
"Number of host proxied DAs supported by the bridge application", HFILL }
},
{ &hf_homeplug_bcl_hpbda,
{ "Host Proxied DA", "homeplug.bcl.hpbda",
FT_ETHER, BASE_NONE, NULL, 0x0, "Host Proxied Bridged Destination Address", HFILL }
},
/* Set Transmit Characteristics */
{ &hf_homeplug_stc,
{ "Set Transmit Characteristics", "homeplug.stc",
FT_NONE, BASE_NONE, NULL, 0x0, "Set Transmit Characteristics", HFILL }
},
{ &hf_homeplug_stc_lco,
{ "Local Consumption Only", "homeplug.stc.lco",
FT_BOOLEAN, 8, NULL, HOMEPLUG_STC_LCO,
"Do not transmit subsequent frames to medium", HFILL }
},
{ &hf_homeplug_stc_encf,
{ "Encryption Flag", "homeplug.stc.encf",
FT_BOOLEAN, 8, NULL, HOMEPLUG_STC_ENCF, "Encrypt subsequent frames", HFILL }
},
{ &hf_homeplug_stc_txprio,
{ "Transmit Priority", "homeplug.stc.txprio",
FT_UINT8, BASE_DEC, VALS(homeplug_txprio_vals), HOMEPLUG_STC_TXPRIO,
"Transmit Priority", HFILL }
},
{ &hf_homeplug_stc_rexp,
{ "Response Expected", "homeplug.stc.rexp",
FT_BOOLEAN, 8, NULL, HOMEPLUG_STC_REXP,
"Mark subsequent frames to receive response", HFILL }
},
{ &hf_homeplug_stc_txcf,
{ "Transmit Contention Free", "homeplug.stc.txcf",
FT_BOOLEAN, 8, NULL, HOMEPLUG_STC_TXCF,
"Mark subsequently transmitted frames as contention free", HFILL }
},
{ &hf_homeplug_stc_cftop,
{ "Contention Free Transmit Override Priority", "homeplug.stc.cftop",
FT_BOOLEAN, 8, TFS(&homeplug_stc_cftop_vals), HOMEPLUG_STC_CFTOP,
"Transmit subsequent contention free frames with CA2/CA3 priority", HFILL }
},
{ &hf_homeplug_stc_rsvd1,
{ "Reserved", "homeplug.stc.rsvd1",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_STC_RSVD1, "Reserved", HFILL }
},
{ &hf_homeplug_stc_retry,
{ "Retry Control", "homeplug.stc.retry",
FT_UINT8, BASE_DEC, VALS(homeplug_stc_retry_vals), HOMEPLUG_STC_RETRY,
"Retry Control", HFILL }
},
{ &hf_homeplug_stc_rsvd2,
{ "Reserved", "homeplug.stc.rsvd2",
FT_UINT8, BASE_DEC, NULL, HOMEPLUG_STC_RSVD2, "Reserved", HFILL }
},
{ &hf_homeplug_stc_dder,
{ "Disable Default Encryption Receive", "homeplug.stc.dder",
FT_BOOLEAN, 8, NULL, HOMEPLUG_STC_DDER, "Disable Default Encryption Receive", HFILL }
},
{ &hf_homeplug_stc_dur,
{ "Disable Unencrypted Receive", "homeplug.stc.dur",
FT_BOOLEAN, 8, NULL, HOMEPLUG_STC_DUR, "Disable Unencrypted Receive", HFILL }
},
{ &hf_homeplug_stc_ebp,
{ "INT51X1 (Host/DTE Option) Enable Backpressure", "homeplug.stc.ebp",
FT_BOOLEAN, 8, NULL, HOMEPLUG_STC_EBP,
"INT51X1 (Host/DTE Option) Enable Backpressure", HFILL }
},
{ &hf_homeplug_stc_dees,
{ "Disable EEPROM Save", "homeplug.stc.dees",
FT_BOOLEAN, 8, NULL, HOMEPLUG_STC_DEES, "Disable EEPROM Save", HFILL }
},
{ &hf_homeplug_stc_txeks,
{ "EKS to be used for encryption", "homeplug.stc.txeks",
FT_UINT8, BASE_DEC, NULL, 0x0, "EKS to be used for encryption", HFILL }
},
/* Undecoded data */
{ &hf_homeplug_data,
{ "Data", "homeplug.data",
FT_BYTES, BASE_NONE, NULL, 0x0, "Data", HFILL }
}
};
/* Setup protocol subtree array */
static gint *ett[] = {
&ett_homeplug,
&ett_homeplug_mctrl,
&ett_homeplug_mehdr,
&ett_homeplug_rce,
&ett_homeplug_cer,
&ett_homeplug_vs,
&ett_homeplug_snk,
&ett_homeplug_rps,
&ett_homeplug_psr,
&ett_homeplug_slp,
&ett_homeplug_ns,
&ett_homeplug_tx_bfr_state,
&ett_homeplug_tone,
&ett_homeplug_bcn,
&ett_homeplug_bridge,
&ett_homeplug_bcl,
&ett_homeplug_stc
};
proto_homeplug = proto_register_protocol("HomePlug protocol", "HomePlug", "homeplug");
proto_register_field_array(proto_homeplug, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
}
/* Dissection of MCTRL */
static void dissect_homeplug_mctrl(ptvcursor_t * cursor)
{
proto_item * it = NULL;
if (!ptvcursor_tree(cursor))
return;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_mctrl, 1, FALSE);
/* Extract Number Of MAC Data Entries */
homeplug_ne = tvb_get_guint8(ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor)) & HOMEPLUG_MCTRL_NE;
ptvcursor_push_subtree(cursor, it, ett_homeplug_mctrl);
ptvcursor_add_no_advance(cursor, hf_homeplug_mctrl_reserved, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_mctrl_ne, 1, FALSE);
ptvcursor_pop_subtree(cursor);
}
/* Dissection of MEHDR */
static void dissect_homeplug_mehdr(ptvcursor_t * cursor)
{
proto_item * it = NULL;
if (!ptvcursor_tree(cursor))
return;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_mehdr, 1, FALSE);
homeplug_metype = tvb_get_guint8(ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor)) & HOMEPLUG_MEHDR_METYPE;
ptvcursor_push_subtree(cursor, it, ett_homeplug_mehdr);
ptvcursor_add_no_advance(cursor, hf_homeplug_mehdr_mev, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_mehdr_metype, 1, FALSE);
ptvcursor_pop_subtree(cursor);
}
/* dissection of MELEN */
static void dissect_homeplug_melen(ptvcursor_t * cursor)
{
if (!ptvcursor_tree(cursor))
return;
homeplug_melen = tvb_get_guint8(ptvcursor_tvbuff(cursor), ptvcursor_current_offset(cursor));
ptvcursor_add(cursor, hf_homeplug_melen, 1, FALSE);
}
/* Dissection of Request Channel Estimation MME */
static void dissect_homeplug_rce(ptvcursor_t * cursor)
{
proto_item * it = NULL;
if (!ptvcursor_tree(cursor))
return;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_rce, homeplug_melen, FALSE);
ptvcursor_push_subtree(cursor, it, ett_homeplug_rce);
ptvcursor_add_no_advance(cursor, hf_homeplug_rce_cev, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_rce_rsvd, 1, FALSE);
ptvcursor_pop_subtree(cursor);
}
/* Dissection of Channel Estimation Response MME */
static void dissect_homeplug_cer(ptvcursor_t * cursor)
{
proto_item * it = NULL;
guint8 iTone = 0;
guint8 BP = 0;
guint8 iNBDA = 0;
if (!ptvcursor_tree(cursor))
return;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_cer_cerv, homeplug_melen, FALSE);
ptvcursor_push_subtree(cursor, it, ett_homeplug_cer);
ptvcursor_add_no_advance(cursor, hf_homeplug_cer_cerv, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_cer_rsvd1, 2, FALSE);
ptvcursor_add(cursor, hf_homeplug_cer_rxtmi, 1, FALSE);
for (;iTone < 10; iTone++) {
ptvcursor_add(cursor, hf_homeplug_cer_vt, 1, FALSE);
}
ptvcursor_add_no_advance(cursor, hf_homeplug_cer_rate, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_cer_bp, 1, FALSE);
BP = tvb_get_guint8(ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor)) & HOMEPLUG_CER_BP;
ptvcursor_add_no_advance(cursor, hf_homeplug_cer_mod, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_cer_vt11, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_cer_rsvd2, 1, FALSE);
if (BP) {
iNBDA = tvb_get_guint8(ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor)) & HOMEPLUG_CER_NBDAS;
ptvcursor_add(cursor, hf_homeplug_cer_nbdas, 1, FALSE);
/* TODO : Check on iNBDA! INT51X1 up to 16 dba. But up to 32 for INT51X1 (Host/DTE) */
for (;iNBDA > 0; iNBDA--) {
ptvcursor_add(cursor, hf_homeplug_cer_bda, 6, FALSE);
}
}
ptvcursor_pop_subtree(cursor);
}
/* Dissection of the Vendor Specific MME */
static void dissect_homeplug_vs(ptvcursor_t * cursor)
{
proto_item * it = NULL;
if (!ptvcursor_tree(cursor))
return;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_vs, homeplug_melen, FALSE);
ptvcursor_push_subtree(cursor, it, ett_homeplug_vs);
ptvcursor_add(cursor, hf_homeplug_vs_oui, 3, FALSE);
if (homeplug_melen > 3)
ptvcursor_add(cursor, hf_homeplug_vs_vd, homeplug_melen - 3, FALSE);
ptvcursor_pop_subtree(cursor);
}
/* Dissection of Request Parameters and Statistics MME */
static void dissect_homeplug_rps(ptvcursor_t * cursor)
{
if (!ptvcursor_tree(cursor))
return;
ptvcursor_add(cursor, hf_homeplug_rps, homeplug_melen, FALSE);
}
/* Dissection of Set Network Encryption Key MME */
static void dissect_homeplug_snk(ptvcursor_t * cursor)
{
proto_item * it = NULL;
if (!ptvcursor_tree(cursor))
return;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_snk, homeplug_melen, FALSE);
ptvcursor_push_subtree(cursor, it, ett_homeplug_snk);
ptvcursor_add(cursor, hf_homeplug_snk_eks, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_snk_nek, 8, FALSE);
ptvcursor_pop_subtree(cursor);
}
/* Dissection of Parameters and Statistics Response MME */
static void dissect_homeplug_psr(ptvcursor_t * cursor)
{
proto_item * it = NULL;
if (!ptvcursor_tree(cursor))
return;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_psr, homeplug_melen, FALSE);
ptvcursor_push_subtree(cursor, it, ett_homeplug_psr);
ptvcursor_add(cursor, hf_homeplug_psr_txack, 2, FALSE);
ptvcursor_add(cursor, hf_homeplug_psr_txnack, 2, FALSE);
ptvcursor_add(cursor, hf_homeplug_psr_txfail, 2, FALSE);
ptvcursor_add(cursor, hf_homeplug_psr_txcloss, 2, FALSE);
ptvcursor_add(cursor, hf_homeplug_psr_txcoll, 2, FALSE);
ptvcursor_add(cursor, hf_homeplug_psr_txca3lat, 2, FALSE);
ptvcursor_add(cursor, hf_homeplug_psr_txca2lat, 2, FALSE);
ptvcursor_add(cursor, hf_homeplug_psr_txca1lat, 2, FALSE);
ptvcursor_add(cursor, hf_homeplug_psr_txca0lat, 2, FALSE);
ptvcursor_add(cursor, hf_homeplug_psr_rxbp40, 4, FALSE);
ptvcursor_pop_subtree(cursor);
}
/* Dissection of the Set Local Parameters MME */
static void dissect_homeplug_slp(ptvcursor_t * cursor)
{
proto_item * it = NULL;
if (!ptvcursor_tree(cursor))
return;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_slp, homeplug_melen, FALSE);
ptvcursor_push_subtree(cursor, it, ett_homeplug_slp);
ptvcursor_add(cursor, hf_homeplug_slp_ma, 6, FALSE);
ptvcursor_pop_subtree(cursor);
}
/* Dissection of the Network Statistics MME */
static void dissect_homeplug_ns(ptvcursor_t * cursor, packet_info * pinfo)
{
guint8 iTone = 0;
guint8 i_buffer = 0;
guint16 ns_bytes40 = 0;
guint64 newt_da = 0;
gboolean extended = (homeplug_melen >= HOMEPLUG_NS_EXT_LEN);
proto_item * ti;
/* Append Basic/Extender specifier to info column */
if (check_col(pinfo->cinfo, COL_INFO))
col_append_str(pinfo->cinfo, COL_INFO, extended ? " Extended" : " Basic");
if (!ptvcursor_tree(cursor))
return;
ptvcursor_add_with_subtree(cursor, hf_homeplug_ns, homeplug_melen, FALSE,
ett_homeplug_ns);
ti = proto_tree_add_boolean(ptvcursor_tree(cursor), hf_homeplug_ns_extended,
ptvcursor_tvbuff(cursor), 0, 0, extended);
PROTO_ITEM_SET_GENERATED(ti);
ptvcursor_add_no_advance(cursor, hf_homeplug_ns_netw_ctrl_ac, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_ns_netw_ctrl_icid, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_ns_bytes40_robo, 2, TRUE);
ns_bytes40 = tvb_get_letohs(ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor));
proto_tree_add_text(ptvcursor_tree(cursor), ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor), 2, "MHz : %.3f", (float)(ns_bytes40)/42);
ptvcursor_advance(cursor, 2);
ptvcursor_add(cursor, hf_homeplug_ns_fails_robo, 2, TRUE);
ptvcursor_add(cursor, hf_homeplug_ns_drops_robo, 2, TRUE);
while (iTone < 15) {
newt_da = ((gint64)tvb_get_ntoh24(ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor))) << 24;
newt_da |= tvb_get_ntoh24(ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor)+3);
if (newt_da != HOMEPLUG_ADDR_INEXISTANT) {
ptvcursor_add_text_with_subtree(cursor, SUBTREE_UNDEFINED_LENGTH,
ett_homeplug_tone, "Tone Map #%d", iTone+1);
ptvcursor_add(cursor, hf_homeplug_ns_netw_da, 6, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_ns_bytes40, 2, TRUE);
ns_bytes40 = tvb_get_letohs(ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor));
proto_tree_add_text(ptvcursor_tree(cursor), ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor), 2, "MHz : %.3f", (float)(ns_bytes40)/42);
ptvcursor_advance(cursor, 2);
ptvcursor_add(cursor, hf_homeplug_ns_fails, 2, TRUE);
ptvcursor_add(cursor, hf_homeplug_ns_drops, 2, TRUE);
ptvcursor_pop_subtree(cursor);
} else {
proto_tree_add_text(ptvcursor_tree(cursor), ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor), 12, "Tone Map #%d does not exist", iTone+1);
}
iTone++;
}
if (extended) {
while (i_buffer < 6) {
ptvcursor_add_text_with_subtree(cursor, SUBTREE_UNDEFINED_LENGTH,
ett_homeplug_tx_bfr_state, "TX_BFR_%d_STATE", i_buffer);
ptvcursor_add_no_advance(cursor, hf_homeplug_ns_buf_in_use, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_ns_prio, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_ns_msdu_len, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_ns_seqn, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_ns_toneidx, 1, FALSE);
ptvcursor_pop_subtree(cursor);
i_buffer++;
}
}
ptvcursor_pop_subtree(cursor);
}
/* Dissection of the Bridging Characteristics Network MME */
static void dissect_homeplug_bcn(ptvcursor_t * cursor)
{
proto_item * it = NULL;
guint8 i_bridge = 0;
guint8 num_das;
guint8 i_da;
guint8 fbn;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_bcn, homeplug_melen, FALSE);
ptvcursor_push_subtree(cursor, it, ett_homeplug_bcn);
ptvcursor_add_no_advance(cursor, hf_homeplug_bcn_network, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_bcn_return, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_bcn_rsvd, 1, FALSE);
fbn = tvb_get_guint8(ptvcursor_tvbuff(cursor), ptvcursor_current_offset(cursor))
& HOMEPLUG_BCN_FBN;
ptvcursor_add(cursor, hf_homeplug_bcn_fbn, 1, FALSE);
while (i_bridge < 2) {
ptvcursor_add_text_with_subtree(cursor, SUBTREE_UNDEFINED_LENGTH,
ett_homeplug_bridge, "Bridge #%d", fbn + i_bridge);
ptvcursor_add(cursor, hf_homeplug_bcn_brda, 6, FALSE);
num_das = tvb_get_guint8(ptvcursor_tvbuff(cursor), ptvcursor_current_offset(cursor));
ptvcursor_add(cursor, hf_homeplug_bcn_bp_das, 1, FALSE);
for (i_da = 0; i_da < num_das; i_da++) {
ptvcursor_add(cursor, hf_homeplug_bcn_bp_da, 6, FALSE);
}
ptvcursor_pop_subtree(cursor);
i_bridge++;
}
ptvcursor_pop_subtree(cursor);
}
/* Dissection of the Bridging Characteristics Local MME */
static void dissect_homeplug_bcl(ptvcursor_t * cursor)
{
proto_item * it = NULL;
guint8 num_das;
guint8 i_da = 0;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_bcl, homeplug_melen, FALSE);
ptvcursor_push_subtree(cursor, it, ett_homeplug_bcl);
ptvcursor_add_no_advance(cursor, hf_homeplug_bcl_network, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_bcl_return, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_bcl_rsvd, 1, FALSE);
num_das = tvb_get_guint8(ptvcursor_tvbuff(cursor), ptvcursor_current_offset(cursor));
ptvcursor_add(cursor, hf_homeplug_bcl_hprox_das, 1, FALSE);
while (i_da < num_das) {
it = ptvcursor_add(cursor, hf_homeplug_bcl_hpbda, 6, FALSE);
i_da++;
}
ptvcursor_pop_subtree(cursor);
}
/* Dissection of the Bridging Characteristics MME */
static void dissect_homeplug_bc(ptvcursor_t * cursor, packet_info * pinfo)
{
gboolean network;
if (!ptvcursor_tree(cursor))
return;
network = tvb_get_guint8(ptvcursor_tvbuff(cursor), ptvcursor_current_offset(cursor))
& HOMEPLUG_BC_NETWORK;
/* Append Network/Local specifier to info column */
if (check_col(pinfo->cinfo, COL_INFO))
col_append_str(pinfo->cinfo, COL_INFO, network ? " Network" : " Local");
/* Call specific dissector */
if (network)
dissect_homeplug_bcn(cursor);
else
dissect_homeplug_bcl(cursor);
}
/* Dissection of the Set Transmit Characteristics MME */
static void dissect_homeplug_stc(ptvcursor_t * cursor)
{
proto_item * it = NULL;
if (!ptvcursor_tree(cursor))
return;
it = ptvcursor_add_no_advance(cursor, hf_homeplug_stc, homeplug_melen, FALSE);
ptvcursor_push_subtree(cursor, it, ett_homeplug_stc);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_lco, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_encf, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_txprio, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_rexp, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_txcf, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_cftop, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_stc_rsvd1, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_retry, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_rsvd2, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_dder, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_dur, 1, FALSE);
ptvcursor_add_no_advance(cursor, hf_homeplug_stc_ebp, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_stc_dees, 1, FALSE);
ptvcursor_add(cursor, hf_homeplug_stc_txeks, 1, FALSE);
ptvcursor_pop_subtree(cursor);
return;
}
/* Dissection of unknown tags */
static void dissect_homeplug_unknown(ptvcursor_t * cursor)
{
ptvcursor_add(cursor, hf_homeplug_data, homeplug_melen, FALSE);
}
static void dissect_homeplug_mme(ptvcursor_t * cursor, packet_info * pinfo)
{
if (check_col(pinfo->cinfo, COL_INFO)) {
col_append_sep_str(pinfo->cinfo, COL_INFO, ", ",
val_to_str(homeplug_metype, homeplug_metype_vals, "Unknown 0x%x"));
}
switch(homeplug_metype) {
case HOMEPLUG_MME_RCE:
dissect_homeplug_rce(cursor);
break;
case HOMEPLUG_MME_CER:
dissect_homeplug_cer(cursor);
break;
case HOMEPLUG_MME_VS:
dissect_homeplug_vs(cursor);
break;
case HOMEPLUG_MME_SNK:
dissect_homeplug_snk(cursor);
break;
case HOMEPLUG_MME_RPS:
dissect_homeplug_rps(cursor);
break;
case HOMEPLUG_MME_PSR:
dissect_homeplug_psr(cursor);
break;
case HOMEPLUG_MME_SLP:
dissect_homeplug_slp(cursor);
break;
case HOMEPLUG_MME_NS:
dissect_homeplug_ns(cursor, pinfo);
break;
case HOMEPLUG_MME_BC:
dissect_homeplug_bc(cursor, pinfo);
break;
case HOMEPLUG_MME_STC:
dissect_homeplug_stc(cursor);
break;
default:
dissect_homeplug_unknown(cursor);
break;
}
}
#define TVB_LEN_GREATEST 1
#define TVB_LEN_UNDEF 0
#define TVB_LEN_SHORTEST -1
static int check_tvb_length(ptvcursor_t *cursor, const gint length)
{
if (!cursor)
return TVB_LEN_UNDEF;
if (tvb_reported_length_remaining(ptvcursor_tvbuff(cursor),
ptvcursor_current_offset(cursor)) < length)
return TVB_LEN_SHORTEST;
return TVB_LEN_GREATEST;
}
static void
dissect_homeplug(tvbuff_t * tvb, packet_info * pinfo, proto_tree * tree)
{
proto_item * it= NULL;
proto_tree * homeplug_tree= NULL;
ptvcursor_t * cursor= NULL;
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "HomePlug");
/* Clear out stuff in the info column */
if (check_col(pinfo->cinfo, COL_INFO)) {
col_clear(pinfo->cinfo, COL_INFO);
col_set_str(pinfo->cinfo, COL_INFO, "MAC Management");
}
homeplug_offset = 0;
if (tree) {
it = proto_tree_add_item(tree, proto_homeplug, tvb, homeplug_offset, -1, FALSE);
homeplug_tree = proto_item_add_subtree(it, ett_homeplug);
cursor = ptvcursor_new(homeplug_tree, tvb, 0);
}
/* We do not have enough data to read mctrl field stop the dissection */
if (check_tvb_length(cursor, HOMEPLUG_MCTRL_LEN) != TVB_LEN_SHORTEST) {
dissect_homeplug_mctrl(cursor);
/** homeplug_ne indicates the number of MME entries. This field is fetched
* from MCTRL.
*/
if ((homeplug_ne > 0) && check_col(pinfo->cinfo, COL_INFO)) {
col_clear(pinfo->cinfo, COL_INFO);
}
for (; homeplug_ne > 0; homeplug_ne--) {
/* Check we have enough data in tvb to read MEHDR */
if (check_tvb_length(cursor, HOMEPLUG_MEHDR_LEN) == TVB_LEN_SHORTEST)
break;
dissect_homeplug_mehdr(cursor);
/* Check we have enough data in tvb to read MELEN */
if (check_tvb_length(cursor, HOMEPLUG_MELEN_LEN) == TVB_LEN_SHORTEST)
break;
dissect_homeplug_melen(cursor);
dissect_homeplug_mme(cursor, pinfo);
}
}
if (cursor)
ptvcursor_free(cursor);
}
void
proto_reg_handoff_homeplug(void)
{
dissector_handle_t homeplug_handle;
homeplug_handle = create_dissector_handle(dissect_homeplug, proto_homeplug);
dissector_add("ethertype", ETHERTYPE_HOMEPLUG, homeplug_handle);
}
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