2012-04-09 14:53:42 +00:00
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/* packet-oipf.c
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* Dissector for Open IPTV Forum protocols
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* Copyright 2012, Martin Kaiser <martin@kaiser.cx>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* This dissector supports the CI+ Content and Service Protection Gateway
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(CSPG-CI+) as defined in in Open IPTV Forum Specification Volume 7 V2.1
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http://www.openiptvforum.org/release_2.html */
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <glib.h>
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#include <epan/packet.h>
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static int proto_oipf_ciplus = -1;
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static gint ett_oipf_ciplus = -1;
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static int hf_oipf_ciplus_cmd_id = -1;
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static int hf_oipf_ciplus_ca_sys_id = -1;
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static int hf_oipf_ciplus_trx_id = -1;
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static int hf_oipf_ciplus_send_datatype_nbr = -1;
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static int hf_oipf_ciplus_dat_id = -1;
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static int hf_oipf_ciplus_dat_len = -1;
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static int hf_oipf_ciplus_data = -1;
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2012-04-24 14:37:18 +00:00
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/* the application id for this protocol in the CI+ SAS resource
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2012-04-09 14:53:42 +00:00
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this is actually a 64bit hex number, we can't use a 64bit number as a key
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for the dissector table directly, we have to process it as a string
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(the string must not be a local variable as glib stores a pointer to
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it in the hash table) */
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static gchar *sas_app_id_str_oipf = "0x0108113101190000";
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2012-04-24 14:37:18 +00:00
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2012-04-09 14:53:42 +00:00
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static const value_string oipf_ciplus_cmd_id[] = {
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{ 0x01, "send_msg" },
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{ 0x02, "reply_msg" },
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{ 0x03, "parental_control_info" },
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{ 0x04, "rights_info" },
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{ 0x05, "system_info" },
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{ 0, NULL }
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};
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static const value_string oipf_ciplus_dat_id[] = {
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{ 0x01, "oipf_ca_vendor_specific_information" },
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{ 0x02, "oipf_country_code" },
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{ 0x03, "oipf_parental_control_url" },
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{ 0x04, "oipf_rating_type" },
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{ 0x05, "oipf_rating_value" },
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{ 0x06, "oipf_rights_issuer_url" },
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{ 0x07, "oipf_access_status" },
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{ 0x08, "oipf_status" },
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{ 0, NULL }
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};
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static int
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dissect_oipf_ciplus(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree)
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{
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2012-04-24 14:37:18 +00:00
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gint msg_len;
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2012-04-09 14:53:42 +00:00
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proto_item *ti;
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proto_tree *oipf_ciplus_tree = NULL;
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2012-04-24 14:37:18 +00:00
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guint offset = 0;
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guint8 i, send_datatype_nbr;
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guint16 dat_len;
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2012-04-09 14:53:42 +00:00
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/* an OIPF CI+ message minimally contains command_id (1 byte),
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ca sys id (2 bytes), transaction id (4 bytes) and
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number of sent datatypes (1 byte) */
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msg_len = tvb_reported_length(tvb);
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if (msg_len < 8)
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return 0;
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if (tree) {
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ti = proto_tree_add_text(tree, tvb, 0, msg_len, "Open IPTV Forum CSPG-CI+");
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oipf_ciplus_tree = proto_item_add_subtree(ti, ett_oipf_ciplus);
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}
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proto_tree_add_item(oipf_ciplus_tree, hf_oipf_ciplus_cmd_id,
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tvb, offset, 1, ENC_BIG_ENDIAN);
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offset++;
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proto_tree_add_item(oipf_ciplus_tree, hf_oipf_ciplus_ca_sys_id,
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tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(oipf_ciplus_tree, hf_oipf_ciplus_trx_id,
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tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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send_datatype_nbr = tvb_get_guint8(tvb, offset);
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proto_tree_add_item(oipf_ciplus_tree, hf_oipf_ciplus_send_datatype_nbr,
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tvb, offset, 1, ENC_BIG_ENDIAN);
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offset++;
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for (i=0; i<send_datatype_nbr; i++) {
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proto_tree_add_item(oipf_ciplus_tree, hf_oipf_ciplus_dat_id,
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tvb, offset, 1, ENC_BIG_ENDIAN);
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offset++;
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dat_len = tvb_get_ntohs(tvb, offset);
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proto_tree_add_item(oipf_ciplus_tree, hf_oipf_ciplus_dat_len,
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tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(oipf_ciplus_tree, hf_oipf_ciplus_data,
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tvb, offset, dat_len, ENC_BIG_ENDIAN);
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offset += dat_len;
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}
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return offset;
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}
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void
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proto_register_oipf(void)
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{
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static gint *ett[] = {
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&ett_oipf_ciplus
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};
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static hf_register_info hf[] = {
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{ &hf_oipf_ciplus_cmd_id,
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{ "Command ID", "oipf.ciplus.cmd_id", FT_UINT8, BASE_HEX,
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VALS(oipf_ciplus_cmd_id), 0, NULL, HFILL } },
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{ &hf_oipf_ciplus_ca_sys_id,
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{ "CA system ID", "oipf.ciplus.ca_system_id", FT_UINT16, BASE_HEX,
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NULL, 0, NULL, HFILL } },
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{ &hf_oipf_ciplus_trx_id,
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{ "Transaction ID", "oipf.ciplus.transaction_id",
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FT_UINT32, BASE_HEX, NULL, 0, NULL, HFILL } },
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{ &hf_oipf_ciplus_send_datatype_nbr,
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{ "Number of data items", "oipf.ciplus.num_items", FT_UINT8,
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BASE_DEC, NULL, 0, NULL, HFILL } },
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{ &hf_oipf_ciplus_dat_id,
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{ "Datatype ID", "oipf.ciplus.datatype_id", FT_UINT8, BASE_HEX,
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VALS(oipf_ciplus_dat_id), 0, NULL, HFILL } },
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{ &hf_oipf_ciplus_dat_len,
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{ "Datatype length", "oipf.ciplus.datatype_len", FT_UINT16,
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BASE_DEC, NULL, 0, NULL, HFILL } },
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{ &hf_oipf_ciplus_data,
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{ "Data", "oipf.ciplus.data", FT_BYTES, BASE_NONE,
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NULL, 0, NULL, HFILL } }
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};
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proto_oipf_ciplus = proto_register_protocol(
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"Open IPTV Forum CSPG-CI+", "OIPF CI+", "oipf.ciplus");
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proto_register_field_array(proto_oipf_ciplus, hf, array_length(hf));
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proto_register_subtree_array(ett, array_length(ett));
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}
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void
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proto_reg_handoff_oipf(void)
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{
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2012-07-24 22:57:25 +00:00
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dissector_handle_t oipf_ciplus_handle;
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oipf_ciplus_handle =
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new_create_dissector_handle(dissect_oipf_ciplus, proto_oipf_ciplus);
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2012-04-09 14:53:42 +00:00
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dissector_add_string("dvb-ci.sas.app_id_str",
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sas_app_id_str_oipf, oipf_ciplus_handle);
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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