forked from osmocom/wireshark
268841f3e0
This patch introduces new APIs to allow dissectors to have a preference for a (TCP) port, but the underlying data is actually part of Decode As functionality. For now the APIs are intentionally separate from the regular APIs that register a dissector within a dissector table. It may be possible to eventually combine the two so that all dissectors that register with a dissector table have an opportunity to "automatically" have a preference to adjust the "table value" through the preferences dialog. The tcp.port dissector table was used as the guinea pig. This will eventually be expanded to other dissector tables as well (most notably UDP ports). Some dissectors that "shared" a TCP/UDP port preference were also converted. It also removed the need for some preference callback functions (mostly when the callback function was the proto_reg_handoff function) so there is cleanup around that. Dissectors that has a port preference whose default was 0 were switched to using the dissector_add_for_decode_as_with_preference API rather than dissector_add_uint_with_preference Also added comments for TCP ports used that aren't IANA registered. Change-Id: I99604f95d426ad345f4b494598d94178b886eb67 Reviewed-on: https://code.wireshark.org/review/17724 Reviewed-by: Michael Mann <mmann78@netscape.net>
387 lines
17 KiB
C
387 lines
17 KiB
C
/* packet-ipdr.c
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*
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* Routines for IP Detail Record (IPDR) dissection.
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*
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* Original dissection based off of a Lua script found at
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* https://bitbucket.org/abn/ipdr-dissector/overview
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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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/expert.h>
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#include "packet-tcp.h"
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void proto_register_ipdr(void);
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void proto_reg_handoff_ipdr(void);
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static int proto_ipdr = -1;
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static int hf_ipdr_version = -1;
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static int hf_ipdr_message_id = -1;
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static int hf_ipdr_session_id = -1;
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static int hf_ipdr_message_flags = -1;
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static int hf_ipdr_message_len = -1;
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static int hf_ipdr_initiator_id = -1;
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static int hf_ipdr_initiator_port = -1;
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static int hf_ipdr_capabilities = -1;
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static int hf_ipdr_keepalive_interval = -1;
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static int hf_ipdr_vendor_id = -1;
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static int hf_ipdr_timestamp = -1;
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static int hf_ipdr_error_code = -1;
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static int hf_ipdr_description = -1;
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static int hf_ipdr_exporter_boot_time = -1;
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static int hf_ipdr_first_record_sequence_number = -1;
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static int hf_ipdr_dropped_record_count = -1;
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static int hf_ipdr_reason_code = -1;
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static int hf_ipdr_reason_info = -1;
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static int hf_ipdr_request_id = -1;
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static int hf_ipdr_config_id = -1;
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static int hf_ipdr_flags = -1;
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static int hf_ipdr_primary = -1;
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static int hf_ipdr_ack_time_interval = -1;
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static int hf_ipdr_ack_sequence_interval = -1;
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static int hf_ipdr_template_id = -1;
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static int hf_ipdr_document_id = -1;
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static int hf_ipdr_sequence_num = -1;
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static int hf_ipdr_request_number = -1;
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static int hf_ipdr_data_record = -1;
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static gint ett_ipdr = -1;
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static expert_field ei_ipdr_message_id = EI_INIT;
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#define IPDR_PORT 4737
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#define IPDR_HEADER_LEN 8
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enum
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{
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IPDR_FLOW_START = 0x01,
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IPDR_FLOW_STOP = 0x03,
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IPDR_CONNECT = 0x05,
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IPDR_CONNECT_RESPONSE = 0x06,
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IPDR_DISCONNECT = 0x07,
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IPDR_SESSION_START = 0x08,
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IPDR_SESSION_STOP = 0x09,
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IPDR_TEMPLATE_DATA = 0x10,
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IPDR_FINAL_TEMPLATE_DATA_ACK = 0x13,
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IPDR_GET_SESSIONS = 0x14,
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IPDR_GET_SESSIONS_RESPONSE = 0x15,
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IPDR_GET_TEMPLATES = 0x16,
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IPDR_GET_TEMPLATES_RESPONSE = 0x17,
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IPDR_MODIFY_TEMPLATE = 0x1A,
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IPDR_MODIFY_TEMPLATE_RESPONSE = 0x1B,
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IPDR_START_NEGOTIATION = 0x1D,
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IPDR_START_NEGOTIATION_REJECT = 0x1E,
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IPDR_DATA = 0x20,
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IPDR_DATA_ACK = 0x21,
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IPDR_ERROR = 0x23,
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IPDR_REQUEST = 0x30,
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IPDR_RESPONSE = 0x31,
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IPDR_KEEP_ALIVE = 0x40
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};
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static const value_string ipdr_message_type_vals[] = {
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{ IPDR_FLOW_START, "FLOW_START" },
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{ IPDR_FLOW_STOP, "FLOW_STOP" },
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{ IPDR_CONNECT, "CONNECT" },
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{ IPDR_CONNECT_RESPONSE, "CONNECT_RESPONSE" },
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{ IPDR_DISCONNECT, "DISCONNECT" },
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{ IPDR_SESSION_START, "SESSION_START" },
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{ IPDR_SESSION_STOP, "SESSION_STOP" },
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{ IPDR_TEMPLATE_DATA, "TEMPLATE_DATA" },
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{ IPDR_FINAL_TEMPLATE_DATA_ACK, "FINAL_TEMPLATE_DATA_ACK" },
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{ IPDR_GET_SESSIONS, "GET_SESSIONS" },
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{ IPDR_GET_SESSIONS_RESPONSE, "GET_SESSIONS_RESPONSE" },
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{ IPDR_GET_TEMPLATES, "GET_TEMPLATES" },
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{ IPDR_GET_TEMPLATES_RESPONSE, "GET_TEMPLATES_RESPONSE" },
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{ IPDR_MODIFY_TEMPLATE, "MODIFY_TEMPLATE" },
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{ IPDR_MODIFY_TEMPLATE_RESPONSE,"MODIFY_TEMPLATE_RESPONSE" },
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{ IPDR_START_NEGOTIATION, "START_NEGOTIATION" },
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{ IPDR_START_NEGOTIATION_REJECT,"START_NEGOTIATION_REJECT" },
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{ IPDR_DATA, "DATA" },
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{ IPDR_DATA_ACK, "DATA_ACK" },
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{ IPDR_ERROR, "ERROR" },
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{ IPDR_REQUEST, "REQUEST" },
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{ IPDR_RESPONSE, "RESPONSE" },
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{ IPDR_KEEP_ALIVE, "KEEP_ALIVE" },
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{ 0, NULL }
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};
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static int
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dissect_ipdr_message(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
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{
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proto_item *ti, *type_item;
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proto_tree *ipdr_tree;
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int offset = 0;
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guint32 message_len, message_type;
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ti = proto_tree_add_item(tree, proto_ipdr, tvb, 0, -1, ENC_NA);
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ipdr_tree = proto_item_add_subtree(ti, ett_ipdr);
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proto_tree_add_item(ipdr_tree, hf_ipdr_version, tvb, offset, 1, ENC_NA);
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offset++;
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type_item = proto_tree_add_item_ret_uint(ipdr_tree, hf_ipdr_message_id, tvb, offset, 1, ENC_NA, &message_type);
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col_append_sep_str(pinfo->cinfo, COL_INFO, ", ", val_to_str(message_type, ipdr_message_type_vals, "Unknown (0x%02x)"));
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offset++;
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proto_tree_add_item(ipdr_tree, hf_ipdr_session_id, tvb, offset, 1, ENC_NA);
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offset++;
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proto_tree_add_item(ipdr_tree, hf_ipdr_message_flags, tvb, offset, 1, ENC_NA);
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offset++;
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proto_tree_add_item_ret_uint(ipdr_tree, hf_ipdr_message_len, tvb, offset, 4, ENC_BIG_ENDIAN, &message_len);
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offset += 4;
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switch(message_type)
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{
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case IPDR_FLOW_START:
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case IPDR_DISCONNECT:
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case IPDR_FINAL_TEMPLATE_DATA_ACK:
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case IPDR_START_NEGOTIATION:
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case IPDR_START_NEGOTIATION_REJECT:
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case IPDR_KEEP_ALIVE:
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/* No additional fields */
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break;
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case IPDR_FLOW_STOP:
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proto_tree_add_item(ipdr_tree, hf_ipdr_reason_code, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_reason_info, tvb, offset, -1, ENC_ASCII|ENC_NA);
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break;
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case IPDR_CONNECT:
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proto_tree_add_item(ipdr_tree, hf_ipdr_initiator_id, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ipdr_tree, hf_ipdr_initiator_port, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_capabilities, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ipdr_tree, hf_ipdr_keepalive_interval, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ipdr_tree, hf_ipdr_vendor_id, tvb, offset, 4, ENC_ASCII|ENC_BIG_ENDIAN);
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break;
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case IPDR_CONNECT_RESPONSE:
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proto_tree_add_item(ipdr_tree, hf_ipdr_capabilities, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ipdr_tree, hf_ipdr_keepalive_interval, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ipdr_tree, hf_ipdr_vendor_id, tvb, offset, 4, ENC_ASCII|ENC_BIG_ENDIAN);
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break;
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case IPDR_SESSION_START:
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proto_tree_add_item(ipdr_tree, hf_ipdr_exporter_boot_time, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ipdr_tree, hf_ipdr_first_record_sequence_number, tvb, offset, 8, ENC_BIG_ENDIAN);
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offset += 8;
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proto_tree_add_item(ipdr_tree, hf_ipdr_dropped_record_count, tvb, offset, 8, ENC_BIG_ENDIAN);
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offset += 8;
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proto_tree_add_item(ipdr_tree, hf_ipdr_primary, tvb, offset, 1, ENC_NA);
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offset++;
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proto_tree_add_item(ipdr_tree, hf_ipdr_ack_time_interval, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ipdr_tree, hf_ipdr_ack_sequence_interval, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ipdr_tree, hf_ipdr_document_id, tvb, offset, 16, ENC_NA);
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break;
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case IPDR_SESSION_STOP:
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proto_tree_add_item(ipdr_tree, hf_ipdr_reason_code, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_reason_info, tvb, offset, -1, ENC_ASCII|ENC_NA);
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break;
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case IPDR_TEMPLATE_DATA:
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proto_tree_add_item(ipdr_tree, hf_ipdr_config_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_flags, tvb, offset, 1, ENC_NA);
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break;
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case IPDR_GET_SESSIONS:
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proto_tree_add_item(ipdr_tree, hf_ipdr_request_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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break;
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case IPDR_GET_SESSIONS_RESPONSE:
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proto_tree_add_item(ipdr_tree, hf_ipdr_request_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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break;
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case IPDR_GET_TEMPLATES:
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proto_tree_add_item(ipdr_tree, hf_ipdr_request_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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break;
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case IPDR_GET_TEMPLATES_RESPONSE:
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proto_tree_add_item(ipdr_tree, hf_ipdr_request_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_config_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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break;
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case IPDR_MODIFY_TEMPLATE:
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proto_tree_add_item(ipdr_tree, hf_ipdr_config_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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break;
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case IPDR_MODIFY_TEMPLATE_RESPONSE:
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proto_tree_add_item(ipdr_tree, hf_ipdr_config_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_flags, tvb, offset, 1, ENC_NA);
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offset++;
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break;
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case IPDR_DATA:
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proto_tree_add_item(ipdr_tree, hf_ipdr_template_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_config_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_flags, tvb, offset, 1, ENC_NA);
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offset++;
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proto_tree_add_item(ipdr_tree, hf_ipdr_sequence_num, tvb, offset, 8, ENC_BIG_ENDIAN);
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offset += 8;
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proto_tree_add_item(ipdr_tree, hf_ipdr_data_record, tvb, offset, -1, ENC_NA);
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break;
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case IPDR_DATA_ACK:
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proto_tree_add_item(ipdr_tree, hf_ipdr_config_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_sequence_num, tvb, offset, 8, ENC_BIG_ENDIAN);
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break;
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case IPDR_ERROR:
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proto_tree_add_item(ipdr_tree, hf_ipdr_timestamp, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(ipdr_tree, hf_ipdr_error_code, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_description, tvb, offset, -1, ENC_ASCII|ENC_NA);
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break;
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case IPDR_REQUEST:
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proto_tree_add_item(ipdr_tree, hf_ipdr_template_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_config_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_flags, tvb, offset, 1, ENC_NA);
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offset++;
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proto_tree_add_item(ipdr_tree, hf_ipdr_request_number, tvb, offset, 8, ENC_BIG_ENDIAN);
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offset += 8;
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proto_tree_add_item(ipdr_tree, hf_ipdr_data_record, tvb, offset, -1, ENC_NA);
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break;
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case IPDR_RESPONSE:
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proto_tree_add_item(ipdr_tree, hf_ipdr_template_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_config_id, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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proto_tree_add_item(ipdr_tree, hf_ipdr_flags, tvb, offset, 1, ENC_NA);
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offset++;
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proto_tree_add_item(ipdr_tree, hf_ipdr_request_number, tvb, offset, 8, ENC_BIG_ENDIAN);
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offset += 8;
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proto_tree_add_item(ipdr_tree, hf_ipdr_data_record, tvb, offset, -1, ENC_NA);
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break;
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default:
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expert_add_info(pinfo, type_item, &ei_ipdr_message_id);
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break;
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}
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return tvb_captured_length(tvb);
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}
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static guint
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get_ipdr_message_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_)
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{
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return (guint)tvb_get_ntohl(tvb, offset+4);
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}
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static int
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dissect_ipdr(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
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{
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if (tvb_reported_length(tvb) < 1)
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return 0;
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if (tvb_get_guint8(tvb, 0) != 2) /* Only version 2 supported */
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return 0;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "IPDR/SP");
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col_clear(pinfo->cinfo, COL_INFO);
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tcp_dissect_pdus(tvb, pinfo, tree, TRUE, IPDR_HEADER_LEN,
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get_ipdr_message_len, dissect_ipdr_message, data);
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return tvb_captured_length(tvb);
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}
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void
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proto_register_ipdr(void)
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{
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static hf_register_info hf[] = {
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{ &hf_ipdr_version, { "Version", "ipdr.version", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_message_id, { "Message id", "ipdr.message_id", FT_UINT8, BASE_DEC, VALS(ipdr_message_type_vals), 0x0, NULL, HFILL } },
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{ &hf_ipdr_session_id, { "Session id", "ipdr.session_id", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_message_flags, { "Message flags", "ipdr.message_flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_message_len, { "Message length", "ipdr.message_len", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_initiator_id, { "Initiator id", "ipdr.initiator_id", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_initiator_port, { "Initiator port", "ipdr.initiator_port", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_capabilities, { "Capabilities", "ipdr.capabilities", FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_keepalive_interval, { "Keep-alive interval", "ipdr.keepalive_interval", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_vendor_id, { "Vendor id", "ipdr.vendor_id", FT_UINT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_timestamp, { "Timestamp", "ipdr.timestamp", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_error_code, { "Error code", "ipdr.error_code", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_description, { "Description", "ipdr.description", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_exporter_boot_time, { "Exporter boot time", "ipdr.exporter_boot_time", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_first_record_sequence_number, { "First record sequence number", "ipdr.first_record_sequence_number", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_dropped_record_count, { "Dropped record count", "ipdr.dropped_record_count", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_reason_code, { "Reason code", "ipdr.reason_code", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_reason_info, { "Reason info", "ipdr.reason_info", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_request_id, { "Request id", "ipdr.request_id", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_config_id, { "Config id", "ipdr.config_id", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_flags, { "Flags", "ipdr.flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_primary, { "Primary", "ipdr.primary", FT_BOOLEAN, 8, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_ipdr_ack_time_interval, { "ACK time interval", "ipdr.ack_time_interval", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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|
{ &hf_ipdr_ack_sequence_interval, { "ACK sequence interval", "ipdr.ack_sequence_interval", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_template_id, { "Template id", "ipdr.template_id", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_document_id, { "Document id", "ipdr.document_id", FT_GUID, BASE_NONE, NULL, 0x0, NULL, HFILL } },
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{ &hf_ipdr_sequence_num, { "Sequence number", "ipdr.sequence_num", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_ipdr_request_number, { "Request number", "ipdr.request_number", FT_UINT64, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
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{ &hf_ipdr_data_record, { "Data record", "ipdr.data_record", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
};
|
|
|
|
static gint *ett[] = {
|
|
&ett_ipdr
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_ipdr_message_id, { "ipdr.message_id.unknown", PI_PROTOCOL, PI_WARN, "Unknown message ID", EXPFILL }},
|
|
};
|
|
|
|
expert_module_t* expert_ipdr;
|
|
|
|
proto_ipdr = proto_register_protocol("IPDR", "IPDR/SP", "ipdr");
|
|
|
|
proto_register_field_array(proto_ipdr, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_ipdr = expert_register_protocol(proto_ipdr);
|
|
expert_register_field_array(expert_ipdr, ei, array_length(ei));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_ipdr(void)
|
|
{
|
|
dissector_handle_t ipdr_handle;
|
|
|
|
ipdr_handle = create_dissector_handle(dissect_ipdr, proto_ipdr);
|
|
dissector_add_uint_with_preference("tcp.port", IPDR_PORT, ipdr_handle);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - http://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|