--- /dev/null
+/* packet-homeplug.c
+ * Routines for homeplug dissection
+ *
+ * Copyright 2006, Sebastien Tandel <sebastien[AT]tandel.be>
+ *
+ * $Id: packet-sccp.c 20220 2006-12-26 22:27:46Z morriss $
+ *
+ * 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/prefs.h>
+
+#include <epan/etypes.h>
+
+#include <epan/proto.h>
+#include <epan/ptvcursor.h>
+
+
+
+/* METYPE Values */
+#define HOMEPLUG_MME_RCE 0x00
+#define HOMEPLUG_MME_CER 0x01
+#define HOMEPLUG_MME_RPS 0x07
+#define HOMEPLUG_MME_PSR 0x08
+#define HOMEPLUG_MME_NS 0x1A
+
+/* 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_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
+
+
+/* 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
+
+/* forward reference */
+void proto_reg_handoff_homeplug();
+
+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;
+ /* 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;
+ /* Network Statistics */
+ /* Basic */
+ static int hf_homeplug_ns = -1;
+ static int hf_homeplug_ns_netw_ctrl_ac = -1;
+ static int hf_homeplug_ns_netw_ctrl_icid = -1;
+ static int hf_homeplug_ns_netw_ctrl_icid_rsvd= -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;
+ /* array of 15 elements */
+/* static int hf_homeplug_ns_bytes40_1 = -1;
+ static int hf_homeplug_ns_bytes40_1 */
+ /* Extended */
+ /* array of 6 elements */
+/* static int hf_homeplug_ns_tx_bfr_0_state = -1;*/
+
+static gint ett_homeplug = -1;
+static gint ett_homeplug_mctrl = -1;
+static gint ett_homeplug_mehdr = -1;
+/* for a later use */
+/* static gint ett_homeplug_mme = -1; */
+static gint ett_homeplug_rce = -1;
+static gint ett_homeplug_cer = -1;
+static gint ett_homeplug_rps = -1;
+static gint ett_homeplug_psr = -1;
+static gint ett_homeplug_ns = -1;
+static gint ett_homeplug_tone = -1;
+
+static guint8 homeplug_ne = 0;
+static guint8 homeplug_melen = 0;
+static guint8 homeplug_metype = 0;
+
+static guint32 homeplug_offset = 0;
+
+/* 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_RSVD1 0x05
+#define HOMEPLUG_NS_ICID_RSVD2 0x06
+#define HOMEPLUG_NS_ICID_RSVD3 0x07
+/* ICID Bit Mask */
+#define HOMEPLUG_NS_ICID_MASK 0x07
+#define HOMEPLUG_NS_ICID_RSVD_MASK 0x78
+/* string values in function of IC_ID values */
+static const value_string homeplug_ns_icid_vals[] = {
+ { HOMEPLUG_NS_ICID5130A1, "INT5130A1" },
+ { HOMEPLUG_NS_ICID51X1USB, "INT51X1 (USB Option)" },
+ { HOMEPLUG_NS_ICID51X1PHY, "INT51X1 (PHY Option)" },
+ { HOMEPLUG_NS_ICID51X1HOST, "INT51X1 (Host/DTE Option)" },
+ { HOMEPLUG_NS_ICID5130A2, "INT5130A2" },
+ { HOMEPLUG_NS_ICID_RSVD1, "Reserved"},
+ { HOMEPLUG_NS_ICID_RSVD2, "Reserved"},
+ { HOMEPLUG_NS_ICID_RSVD3, "Reserved"},
+ { 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}
+};
+
+#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_UINT8, BASE_DEC, NULL, 0x0, "MAC Control Field", HFILL }
+ },
+
+ { &hf_homeplug_mctrl_reserved,
+ { "Reserved", "homeplug.mctrl.rsvd",
+ FT_NONE, 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_DEC, 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, NULL, 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_DEC, 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_DEC, NULL, HOMEPLUG_RCE_RSVD, "Reserved", HFILL }
+ },
+
+ /* Channel Estimation Response */
+ { &hf_homeplug_cer,
+ { "Channel Estimation Response", "homeplug.cer",
+ FT_NONE, BASE_DEC, 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_DEC, 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_HEX, NULL, 0x0, "Bridged Destination Address", HFILL }
+ },
+
+ /* Request Parameters and Statistics */
+ { &hf_homeplug_rps,
+ { "Request Parameters and Statistics", "homeplug.rps",
+ FT_NONE, BASE_DEC, NULL, 0x0, "Request Parameters and Statistics", HFILL }
+ },
+
+ /* Parameters and Statistics Response */
+ { &hf_homeplug_psr,
+ { "Parameters and Statistics Response", "homeplug.psr",
+ FT_NONE, BASE_DEC, 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 }
+ },
+
+ /* Network Statistics Basic */
+ { &hf_homeplug_ns,
+ { "Network Statistics Basic", "homeplug.ns",
+ FT_NONE, BASE_DEC, NULL, 0x0, "Network Statistics Basic", HFILL }
+ },
+
+ { &hf_homeplug_ns_netw_ctrl_ac,
+ { "Action Control", "homeplug.ns.ac",
+ FT_BOOLEAN, BASE_DEC, NULL, HOMEPLUG_NS_AC, "Action Control", HFILL }
+ },
+
+ { &hf_homeplug_ns_netw_ctrl_icid,
+ { "IC_ID", "homeplug.ns.icid",
+ FT_UINT8, BASE_HEX, VALS(&homeplug_ns_icid_vals), HOMEPLUG_NS_ICID_MASK, "IC_ID", HFILL }
+ },
+
+ { &hf_homeplug_ns_netw_ctrl_icid_rsvd,
+ { "IC_ID Reserved", "homeplug.ns.icid",
+ FT_NONE, BASE_DEC, NULL, 0x0, "IC_ID Reserved", 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 }
+ },
+
+ /* TODO NETW_DA1 ... */
+ { &hf_homeplug_ns_netw_da,
+ { "Address of Network DA", "homeplug.ns.netw_da",
+ FT_ETHER, BASE_HEX, 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 }
+ }
+
+ /* TODO Network Statistics Extended */
+ };
+
+ /* Setup protocol subtree array */
+ static gint *ett[] = {
+ &ett_homeplug,
+ &ett_homeplug_mctrl,
+ &ett_homeplug_mehdr,
+ &ett_homeplug_rce,
+ &ett_homeplug_cer,
+ &ett_homeplug_rps,
+ &ett_homeplug_psr,
+ &ett_homeplug_ns,
+ &ett_homeplug_tone,
+ };
+
+ proto_homeplug = proto_register_protocol(
+ "HomePlug protocol", /* Name */
+ "HomePlug", /* Short Name */
+ "homeplug" /* Abbrev */
+ );
+
+ 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_tree *initial_tree = NULL;
+ proto_tree *additional_tree = NULL;
+ proto_item *it = NULL;
+
+ if (!cursor || !ptvcursor_tree(cursor))
+ return;
+
+ initial_tree = ptvcursor_tree(cursor);
+
+ it = ptvcursor_add_no_advance(cursor, hf_homeplug_mctrl, 1, FALSE);
+ homeplug_ne = tvb_get_guint8(ptvcursor_tvbuff(cursor),
+ ptvcursor_current_offset(cursor))
+ & HOMEPLUG_MCTRL_NE;
+
+ additional_tree = proto_item_add_subtree(it, ett_homeplug_mctrl);
+ ptvcursor_set_tree(cursor, additional_tree);
+ ptvcursor_add_no_advance(cursor, hf_homeplug_mctrl_reserved, 1, FALSE);
+ ptvcursor_add(cursor, hf_homeplug_mctrl_ne, 1, FALSE);
+
+ ptvcursor_set_tree(cursor, initial_tree);
+}
+
+/* Dissection of MEHDR */
+static void dissect_homeplug_mehdr(ptvcursor_t * cursor)
+{
+ proto_tree *initial_tree = NULL;
+ proto_tree *additional_tree = NULL;
+ proto_item *it = NULL;
+
+ if (!cursor || !ptvcursor_tree(cursor))
+ return;
+
+ initial_tree = ptvcursor_tree(cursor);
+
+ it = ptvcursor_add_no_advance(cursor, hf_homeplug_mehdr, 0, FALSE);
+ homeplug_metype = tvb_get_guint8(ptvcursor_tvbuff(cursor),
+ ptvcursor_current_offset(cursor))
+ & HOMEPLUG_MEHDR_METYPE;
+
+ additional_tree = proto_item_add_subtree(it, ett_homeplug_mehdr);
+ ptvcursor_set_tree(cursor, additional_tree);
+ ptvcursor_add_no_advance(cursor, hf_homeplug_mehdr_mev, 1, FALSE);
+ ptvcursor_add(cursor, hf_homeplug_mehdr_metype, 1, FALSE);
+
+ ptvcursor_set_tree(cursor, initial_tree);
+}
+
+
+/* dissection of MELEN */
+static void dissect_homeplug_melen(ptvcursor_t *cursor)
+{
+ if (!cursor || !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_tree *initial_tree = NULL;
+ proto_tree *additional_tree = NULL;
+ proto_item *it = NULL;
+
+ if (!cursor || !ptvcursor_tree(cursor))
+ return;
+
+ initial_tree = ptvcursor_tree(cursor);
+
+ it = ptvcursor_add_no_advance(cursor, hf_homeplug_rce, homeplug_melen, FALSE);
+
+ additional_tree = proto_item_add_subtree(it , ett_homeplug_rce);
+ ptvcursor_set_tree(cursor, additional_tree);
+ ptvcursor_add_no_advance(cursor, hf_homeplug_rce_cev, 1, FALSE);
+ ptvcursor_add(cursor, hf_homeplug_rce_rsvd, 1, FALSE);
+
+ ptvcursor_set_tree(cursor, initial_tree);
+}
+
+/* Dissection of Channel Estimation Response MME */
+static void dissect_homeplug_cer(ptvcursor_t *cursor)
+{
+ proto_tree *initial_tree = NULL;
+ proto_tree *additional_tree = NULL;
+ proto_item *it = NULL;
+ guint8 iTone;
+ guint8 BP = 0;
+ guint8 iNBDA = 0;
+
+ if (!cursor || !ptvcursor_tree(cursor))
+ return;
+
+ initial_tree = ptvcursor_tree(cursor);
+
+ it = ptvcursor_add_no_advance(cursor, hf_homeplug_cer_cerv, homeplug_melen, FALSE);
+
+ additional_tree = proto_item_add_subtree(it, ett_homeplug_cer);
+ ptvcursor_set_tree(cursor, additional_tree);
+ 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 = 0; 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_set_tree(cursor, initial_tree);
+}
+
+
+/* Dissection of Request Parameters and Statistics MME */
+static void dissect_homeplug_rps(ptvcursor_t *cursor)
+{
+ if (!cursor || !ptvcursor_tree(cursor))
+ return;
+
+ ptvcursor_add(cursor, hf_homeplug_rps, 4, FALSE);
+}
+
+/* Dissection of Parameters and Statistics Response MME */
+static void dissect_homeplug_psr(ptvcursor_t *cursor)
+{
+ proto_tree *initial_tree = NULL;
+ proto_tree *additional_tree = NULL;
+ proto_item *it = NULL;
+
+ if (!cursor || !ptvcursor_tree(cursor))
+ return;
+
+ initial_tree = ptvcursor_tree(cursor);
+
+ it = ptvcursor_add_no_advance(cursor, hf_homeplug_psr, homeplug_melen, FALSE);
+
+ additional_tree = proto_item_add_subtree(it, ett_homeplug_psr);
+ ptvcursor_set_tree(cursor, additional_tree);
+ 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_set_tree(cursor, initial_tree);
+}
+
+/* Dissection of the Network Statistic MME */
+static void dissect_homeplug_ns(ptvcursor_t *cursor)
+{
+ proto_item *it = NULL;
+ proto_tree *additional_tree = NULL, *tree_tone = NULL;
+ proto_tree *initial_tree = NULL;
+ guint8 homeplug_ns_icid_rsvd = 0;
+ guint8 iTone = 0;
+ guint16 ns_bytes40 = 0;
+ guint64 newt_da = 0;
+#define NEWT_DA_INEXISTANT G_GINT64_CONSTANT(010000000000U)
+
+ if (!cursor || !ptvcursor_tree(cursor))
+ return;
+
+ initial_tree = ptvcursor_tree(cursor);
+
+ /* TODO : test length of the MME : differentiation of NS Basic and Extended */
+ it = ptvcursor_add_no_advance(cursor, hf_homeplug_ns, homeplug_melen, FALSE);
+
+ additional_tree = proto_item_add_subtree(it, ett_homeplug_ns);
+ ptvcursor_set_tree(cursor, additional_tree);
+ ptvcursor_add_no_advance(cursor, hf_homeplug_ns_netw_ctrl_ac, 1, FALSE);
+ homeplug_ns_icid_rsvd = tvb_get_guint8(ptvcursor_tvbuff(cursor),
+ ptvcursor_current_offset(cursor))
+ & HOMEPLUG_NS_ICID_RSVD_MASK;
+
+ if (homeplug_ns_icid_rsvd)
+ ptvcursor_add(cursor, hf_homeplug_ns_netw_ctrl_icid_rsvd, 1, FALSE);
+ else
+ 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));
+ it = proto_tree_add_text(additional_tree, 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 != NEWT_DA_INEXISTANT) {
+ it = proto_tree_add_text(additional_tree, ptvcursor_tvbuff(cursor),
+ ptvcursor_current_offset(cursor), 12,
+ "Tone Map #%d", iTone+1);
+
+ tree_tone = proto_item_add_subtree(it, ett_homeplug_tone);
+ ptvcursor_set_tree(cursor, tree_tone);
+
+ 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));
+ it = 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);
+ } else
+ it = proto_tree_add_text(additional_tree, ptvcursor_tvbuff(cursor),
+ ptvcursor_current_offset(cursor), 12,
+ "Tone Map #%d does not exist", iTone+1);
+
+ iTone++;
+ }
+
+ ptvcursor_set_tree(cursor, initial_tree);
+}
+
+static void dissect_homeplug_mme(ptvcursor_t *cursor, packet_info *pinfo)
+{
+ switch(homeplug_metype) {
+ case HOMEPLUG_MME_RCE:
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_set_str(pinfo->cinfo, COL_INFO, "Request Channel Estimation");
+ }
+ dissect_homeplug_rce(cursor);
+ break;
+
+ case HOMEPLUG_MME_CER:
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_set_str(pinfo->cinfo, COL_INFO, "Channel Estimation Response");
+ }
+ dissect_homeplug_cer(cursor);
+ break;
+
+ case HOMEPLUG_MME_RPS:
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_set_str(pinfo->cinfo, COL_INFO, "Request Parameters and Statistics");
+ }
+ dissect_homeplug_rps(cursor);
+ break;
+
+ case HOMEPLUG_MME_PSR:
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_set_str(pinfo->cinfo, COL_INFO, "Parameters and Statistics Response");
+ }
+ dissect_homeplug_psr(cursor);
+ break;
+
+ case HOMEPLUG_MME_NS:
+ if (check_col(pinfo->cinfo, COL_INFO)) {
+ col_clear(pinfo->cinfo, COL_INFO);
+ col_set_str(pinfo->cinfo, COL_INFO, "Network Statistics");
+ }
+ dissect_homeplug_ns(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.
+ */
+ 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);
+}
+
+static dissector_handle_t homeplug_handle;
+
+void
+proto_reg_handoff_homeplug(void)
+{
+ static gboolean initialised = FALSE;
+
+ if (!initialised) {
+ homeplug_handle = create_dissector_handle(dissect_homeplug, proto_homeplug);
+ dissector_add("ethertype", ETHERTYPE_HOMEPLUG, homeplug_handle);
+ initialised = TRUE;
+ }
+}
git.samba.org / obnox / wireshark / wip.git / commitdiff