forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
Cast away some implicit 64-bit-to-32-bit conversion errors due to use of sizeof. Cast away some implicit 64-bit-to-32-bit conversion errors due to use of strtol() and strtoul(). Change some data types to avoid those implicit conversion warnings. When assigning a constant to a float, make sure the constant isn't a double, by appending "f" to the constant. Constify a bunch of variables, parameters, and return values to eliminate warnings due to strings being given const qualifiers. Cast away those warnings in some cases where an API we don't control forces us to do so. Enable a bunch of additional warnings by default. Note why at least some of the other warnings aren't enabled. randpkt.c and text2pcap.c are used to build programs, so they don't need to be in EXTRA_DIST. If the user specifies --enable-warnings-as-errors, add -Werror *even if the user specified --enable-extra-gcc-flags; assume they know what they're doing and are willing to have the compile fail due to the extra GCC warnings being treated as errors. svn path=/trunk/; revision=46748
194 lines
6.3 KiB
C
194 lines
6.3 KiB
C
/* 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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#include "config.h"
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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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/* the application id for this protocol in the CI+ SAS resource
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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 const gchar sas_app_id_str_oipf[] = "0x0108113101190000";
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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, void *data _U_)
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{
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gint msg_len;
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proto_item *ti;
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proto_tree *oipf_ciplus_tree = NULL;
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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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/* 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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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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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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