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wireshark/epan/dissectors/packet-dtn.c

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/* packet-dtn.c
* Copyright 2006-2007 The MITRE Corporation.
* All Rights Reserved.
* Approved for Public Release; Distribution Unlimited.
* Tracking Number 07-0090.
*
* The US Government will not be charged any license fee and/or royalties
* related to this software. Neither name of The MITRE Corporation; nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Specification reference:
* RFC 5050
* http://tools.ietf.org/html/rfc5050
*/
/*
* Modifications were made to this file under designation MFS-33289-1 and
* are Copyright 2015 United States Government as represented by NASA
* Marshall Space Flight Center. All Rights Reserved.
*
* Released under the GNU GPL with NASA legal approval granted 2016-06-10.
*
* The subject software is provided "AS IS" WITHOUT ANY WARRANTY of any kind,
* either expressed, implied or statutory and this agreement does not,
* in any manner, constitute an endorsement by government agency of any
* results, designs or products resulting from use of the subject software.
* See the Agreement for the specific language governing permissions and
* limitations.
*/
#include "config.h"
#include <stdio.h>
#include <epan/packet.h>
#include <epan/prefs.h>
#include <epan/reassemble.h>
#include <epan/expert.h>
#include "packet-dtn.h"
#include "packet-tcp.h"
static int dissect_admin_record(proto_tree *primary_tree, tvbuff_t *tvb, packet_info *pinfo,
int offset, int payload_length, gboolean* success);
/* For Reassembling TCP Convergence Layer segments */
static reassembly_table msg_reassembly_table;
static const char magic[] = {'d', 't', 'n', '!'};
static int proto_bundle = -1;
static int proto_tcp_conv = -1;
static int hf_bundle_pdu_version = -1;
/* TCP Convergence Header Variables */
static int hf_tcp_convergence_pkt_type = -1;
static int hf_contact_hdr_version = -1;
static int hf_contact_hdr_flags = -1;
static int hf_contact_hdr_keep_alive = -1;
static int hf_contact_hdr_flags_ack_req = -1;
static int hf_contact_hdr_flags_frag_enable = -1;
static int hf_contact_hdr_flags_nak = -1;
static int hf_contact_hdr_magic = -1;
static int hf_contact_hdr_local_eid_length = -1;
static int hf_contact_hdr_local_eid = -1;
/* TCP Convergence Data Header Variables */
static int hf_tcp_convergence_data_procflags = -1;
static int hf_tcp_convergence_data_procflags_start = -1;
static int hf_tcp_convergence_data_procflags_end = -1;
static int hf_tcp_convergence_data_segment_length = -1;
/* TCP Convergence Ack Variables */
static int hf_tcp_convergence_ack_length = -1;
/* TCP Convergence Shutdown Header Variables */
static int hf_tcp_convergence_shutdown_flags = -1;
static int hf_tcp_convergence_shutdown_flags_reason = -1;
static int hf_tcp_convergence_shutdown_flags_delay = -1;
static int hf_tcp_convergence_shutdown_reason = -1;
static int hf_tcp_convergence_shutdown_delay = -1;
/*TCP Convergence Layer Reassembly boilerplate*/
static int hf_msg_fragments = -1;
static int hf_msg_fragment = -1;
static int hf_msg_fragment_overlap = -1;
static int hf_msg_fragment_overlap_conflicts = -1;
static int hf_msg_fragment_multiple_tails = -1;
static int hf_msg_fragment_too_long_fragment = -1;
static int hf_msg_fragment_error = -1;
static int hf_msg_fragment_count = -1;
static int hf_msg_reassembled_in = -1;
static int hf_msg_reassembled_length = -1;
/* Primary Header Processing Flag Variables */
static int hf_bundle_procflags = -1;
static int hf_bundle_procflags_fragment = -1;
static int hf_bundle_procflags_admin = -1;
static int hf_bundle_procflags_dont_fragment = -1;
static int hf_bundle_procflags_cust_xfer_req = -1;
static int hf_bundle_procflags_dest_singleton = -1;
static int hf_bundle_procflags_application_ack = -1;
/* Additions for Version 5 */
static int hf_bundle_control_flags = -1;
static int hf_bundle_procflags_general = -1;
static int hf_bundle_procflags_cos = -1;
static int hf_bundle_procflags_status = -1;
/* Primary Header COS Flag Variables */
static int hf_bundle_cosflags = -1;
static int hf_bundle_cosflags_priority = -1;
/* Primary Header Status Report Request Flag Variables */
static int hf_bundle_srrflags = -1;
static int hf_bundle_srrflags_report_receipt = -1;
static int hf_bundle_srrflags_report_cust_accept = -1;
static int hf_bundle_srrflags_report_forward = -1;
static int hf_bundle_srrflags_report_delivery = -1;
static int hf_bundle_srrflags_report_deletion = -1;
static int hf_bundle_srrflags_report_ack = -1;
/* Primary Header Fields*/
static int hf_bundle_primary_header_len = -1;
static int hf_bundle_primary_dictionary_len = -1;
static int hf_bundle_primary_timestamp = -1;
static int hf_bundle_primary_fragment_offset = -1;
static int hf_bundle_primary_total_adu_len = -1;
static int hf_bundle_primary_timestamp_seq_num64 = -1;
static int hf_bundle_primary_timestamp_seq_num32 = -1;
static int hf_bundle_dest_scheme_offset_u16 = -1;
static int hf_bundle_dest_scheme_offset_i32 = -1;
static int hf_bundle_dest_ssp_offset_u16 = -1;
static int hf_bundle_dest_ssp_offset_i32 = -1;
static int hf_bundle_source_scheme_offset_u16 = -1;
static int hf_bundle_source_scheme_offset_i32 = -1;
static int hf_bundle_source_ssp_offset_u16 = -1;
static int hf_bundle_source_ssp_offset_i32 = -1;
static int hf_bundle_report_scheme_offset_u16 = -1;
static int hf_bundle_report_scheme_offset_i32 = -1;
static int hf_bundle_report_ssp_offset_u16 = -1;
static int hf_bundle_report_ssp_offset_i32 = -1;
static int hf_bundle_cust_scheme_offset_u16 = -1;
static int hf_bundle_cust_scheme_offset_i32 = -1;
static int hf_bundle_cust_ssp_offset_u16 = -1;
static int hf_bundle_cust_ssp_offset_i32 = -1;
/* Dictionary EIDs */
static int hf_bundle_dest_scheme = -1;
static int hf_bundle_dest_ssp = -1;
static int hf_bundle_source_scheme = -1;
static int hf_bundle_source_ssp = -1;
static int hf_bundle_report_scheme = -1;
static int hf_bundle_report_ssp = -1;
static int hf_bundle_custodian_scheme = -1;
static int hf_bundle_custodian_ssp = -1;
/* Remaining Primary Header Fields */
static int hf_bundle_creation_timestamp = -1;
static int hf_bundle_lifetime = -1;
static int hf_bundle_lifetime_sdnv = -1;
/* Secondary Header Processing Flag Variables */
static int hf_bundle_payload_length = -1;
static int hf_bundle_payload_header_type = -1;
static int hf_bundle_payload_data = -1;
static int hf_bundle_payload_flags = -1;
static int hf_bundle_payload_flags_replicate_hdr = -1;
static int hf_bundle_payload_flags_xmit_report = -1;
static int hf_bundle_payload_flags_discard_on_fail = -1;
static int hf_bundle_payload_flags_last_header = -1;
/* Block Processing Control Flag Variables (Version 5) */
static int hf_block_control_flags = -1;
static int hf_block_control_flags_sdnv = -1;
static int hf_block_control_replicate = -1;
static int hf_block_control_transmit_status = -1;
static int hf_block_control_delete_bundle = -1;
static int hf_block_control_last_block = -1;
static int hf_block_control_discard_block = -1;
static int hf_block_control_not_processed = -1;
static int hf_block_control_eid_reference = -1;
static int hf_block_control_block_length = -1;
static int hf_block_control_block_cteb_custody_id = -1;
static int hf_block_control_block_cteb_creator_custodian_eid = -1;
/* Non-Primary Block Type Code Variable */
static int hf_bundle_block_type_code = -1;
static int hf_bundle_unprocessed_block_data = -1;
/* ECOS Flag Variables */
static int hf_ecos_flags = -1;
static int hf_ecos_flags_critical = -1;
static int hf_ecos_flags_streaming = -1;
static int hf_ecos_flags_flowlabel = -1;
static int hf_ecos_flags_reliable = -1;
static int hf_ecos_flow_label = -1;
static int hf_ecos_ordinal = -1;
/* Administrative Record Variables */
static int hf_bundle_admin_record_type = -1;
static int hf_bundle_admin_record_fragment = -1;
static int hf_bundle_admin_statflags = -1;
static int hf_bundle_admin_rcvd = -1;
static int hf_bundle_admin_accepted = -1;
static int hf_bundle_admin_forwarded = -1;
static int hf_bundle_admin_delivered = -1;
static int hf_bundle_admin_deleted = -1;
static int hf_bundle_admin_acked = -1;
static int hf_bundle_admin_fragment_offset = -1;
static int hf_bundle_admin_fragment_length = -1;
static int hf_bundle_admin_timestamp_seq_num64 = -1;
static int hf_bundle_admin_timestamp_seq_num32 = -1;
static int hf_bundle_admin_endpoint_length = -1;
static int hf_bundle_admin_endpoint_id = -1;
static int hf_bundle_admin_receipt_time = -1;
static int hf_bundle_admin_accept_time = -1;
static int hf_bundle_admin_forward_time = -1;
static int hf_bundle_admin_delivery_time = -1;
static int hf_bundle_admin_delete_time = -1;
static int hf_bundle_admin_ack_time = -1;
static int hf_bundle_admin_timestamp_copy = -1;
static int hf_bundle_admin_signal_time = -1;
static int hf_bundle_status_report_reason_code = -1;
static int hf_bundle_custody_trf_succ_flg = -1;
static int hf_bundle_custody_signal_reason = -1;
static int hf_bundle_custody_id_range_start = -1;
static int hf_bundle_custody_id_range_end = -1;
/* Tree Node Variables */
static gint ett_bundle = -1;
static gint ett_conv_flags = -1;
static gint ett_shutdown_flags = -1;
static gint ett_bundle_hdr = -1;
static gint ett_primary_hdr = -1;
static gint ett_proc_flags = -1;
static gint ett_gen_flags = -1;
static gint ett_cos_flags = -1;
static gint ett_srr_flags = -1;
static gint ett_dictionary = -1;
static gint ett_payload_hdr = -1;
static gint ett_payload_flags = -1;
static gint ett_block_flags = -1;
static gint ett_contact_hdr_flags = -1;
static gint ett_admin_record = -1;
static gint ett_admin_rec_status = -1;
static gint ett_metadata_hdr = -1;
static gint ett_tcp_conv = -1;
static gint ett_tcp_conv_hdr = -1;
static gint ett_msg_fragment = -1;
static gint ett_msg_fragments = -1;
static expert_field ei_bundle_payload_length = EI_INIT;
static expert_field ei_bundle_control_flags_length = EI_INIT;
static expert_field ei_bundle_block_control_flags = EI_INIT;
static expert_field ei_bundle_sdnv_length = EI_INIT;
static expert_field ei_bundle_timestamp_seq_num = EI_INIT;
static expert_field ei_bundle_offset_error = EI_INIT;
static expert_field ei_block_control_block_cteb_invalid = EI_INIT;
static expert_field ei_block_control_block_cteb_valid = EI_INIT;
static expert_field ei_tcp_convergence_data_flags = EI_INIT;
static expert_field ei_tcp_convergence_segment_length = EI_INIT;
static expert_field ei_tcp_convergence_ack_length = EI_INIT;
static dissector_handle_t bundle_handle;
#define BUNDLE_PORT 4556
static guint bundle_udp_port = BUNDLE_PORT;
typedef struct dictionary_data {
int bundle_header_dict_length;
int dest_scheme_offset;
int dst_scheme_pos;
int dst_scheme_len;
int source_scheme_offset;
int src_scheme_pos;
int src_scheme_len;
int report_scheme_offset;
int rpt_scheme_pos;
int rpt_scheme_len;
int cust_scheme_offset;
int cust_scheme_pos;
int cust_scheme_len;
int dest_ssp_offset;
int dst_ssp_len;
int source_ssp_offset;
int src_ssp_len;
int report_ssp_offset;
int rpt_ssp_len;
int cust_ssp_offset;
int cust_ssp_len;
} dictionary_data_t;
static const value_string packet_type_vals[] = {
{((TCP_CONVERGENCE_DATA_SEGMENT>>4) & 0x0F), "Data"},
{((TCP_CONVERGENCE_ACK_SEGMENT>>4) & 0x0F), "Ack"},
{((TCP_CONVERGENCE_REFUSE_BUNDLE>>4) & 0x0F), "Refuse Bundle"},
{((TCP_CONVERGENCE_KEEP_ALIVE>>4) & 0x0F), "Keep Alive"},
{((TCP_CONVERGENCE_SHUTDOWN>>4) & 0x0F), "Shutdown"},
{0, NULL}
};
static const value_string admin_record_type_vals[] = {
{ADMIN_REC_TYPE_STATUS_REPORT, "Bundle Status Report"},
{ADMIN_REC_TYPE_CUSTODY_SIGNAL, "Custody Signal"},
{ADMIN_REC_TYPE_AGGREGATE_CUSTODY_SIGNAL, "Aggregate Custody Signal"},
{ADMIN_REC_TYPE_ANNOUNCE_BUNDLE, "Announce Record (Contact)"},
{0, NULL}
};
static const value_string custody_signal_reason_codes[] = {
{0x0, "No Additional Information"},
{0x3, "Redundant Reception"},
{0x4, "Depleted Storage"},
{0x5, "Destination Endpoint ID Unintelligible"},
{0x6, "No Known Route to Destination"},
{0x7, "No Timely Contact with Next Node on Route"},
{0x8, "Header Unintelligible"},
{0, NULL}
};
static const value_string status_report_reason_codes[] = {
{0x0, "No Additional Information"},
{0x1, "Lifetime Expired"},
{0x2, "Forwarded over Unidirectional Link"},
{0x3, "Transmission Cancelled"},
{0x4, "Depleted Storage"},
{0x5, "Destination Endpoint ID Unintelligible"},
{0x6, "No Known Route to Destination"},
{0x7, "No Timely Contact with Next Node on Route"},
{0x8, "Header Unintelligible"},
{0, NULL}
};
static const value_string bundle_block_type_codes[] = {
{0x01, "Bundle Payload Block"},
{0x02, "Bundle Authentication Block"},
{0x03, "Payload Integrity Block"},
{0x04, "Payload Confidentiality Block"},
{0x05, "Previous-Hop Insertion Block"},
{0x08, "Metadata Extension Block"},
{0x09, "Extension Security Block"},
{0x0a, "Custody Transfer Enhancement Block"},
{0x13, "Extended Class of Service Block"},
{0, NULL}
};
static const value_string cosflags_priority_vals[] = {
{0x00, "Bulk"},
{0x01, "Normal"},
{0x02, "Expedited"},
{0x03, "Invalid (Reserved)"},
{0, NULL}
};
/*
* SDNV has a zero in high-order bit position of last byte. The high-order
* bit of all preceding bytes is set to one. This returns the numeric value
* in an integer and sets the value of the second argument to the number of
* bytes used to code the SDNV. A -1 is returned if the evaluation fails
* (value exceeds maximum for signed integer). 0 is an acceptable value.
*/
#define SDNV_MASK 0x7f
static const fragment_items msg_frag_items = {
/*Fragment subtrees*/
&ett_msg_fragment,
&ett_msg_fragments,
/*Fragment Fields*/
&hf_msg_fragments,
&hf_msg_fragment,
&hf_msg_fragment_overlap,
&hf_msg_fragment_overlap_conflicts,
&hf_msg_fragment_multiple_tails,
&hf_msg_fragment_too_long_fragment,
&hf_msg_fragment_error,
&hf_msg_fragment_count,
/*Reassembled in field*/
&hf_msg_reassembled_in,
/*Reassembled length field*/
&hf_msg_reassembled_length,
/* Reassembled data field */
NULL,
/*Tag*/
"Message fragments"
};
/*
* Adds the result of 2 SDNVs to tree: First SDNV is seconds, next is nanoseconds.
* Returns bytes in both SDNVs or 0 if something goes wrong.
*/
static int
add_dtn_time_to_tree(proto_tree *tree, tvbuff_t *tvb, int offset, int hf_dtn_time)
{
nstime_t dtn_time;
int sdnv_length, sdnv2_length;
int sdnv_value;
int orig_offset;
orig_offset = offset;
sdnv_value = evaluate_sdnv(tvb, offset, &sdnv_length);
if (sdnv_value < 0) {
return 0;
}
dtn_time.secs = (time_t)(sdnv_value + 946684800);
offset += sdnv_length;
dtn_time.nsecs = evaluate_sdnv(tvb, offset, &sdnv2_length);
if (dtn_time.nsecs < 0) {
return 0;
}
proto_tree_add_time(tree, hf_dtn_time, tvb, orig_offset, sdnv_length + sdnv2_length, &dtn_time);
return (sdnv_length + sdnv2_length);
}
/*
* Adds the result of SDNV which is a time since 2000 to tree.
* Returns bytes in SDNV or 0 if something goes wrong.
*/
static int
add_sdnv_time_to_tree(proto_tree *tree, tvbuff_t *tvb, int offset, int hf_sdnv_time)
{
nstime_t dtn_time;
int sdnv_length;
int sdnv_value;
sdnv_value = evaluate_sdnv(tvb, offset, &sdnv_length);
if (sdnv_value < 0) {
return 0;
}
dtn_time.secs = (time_t)(sdnv_value + 946684800);
dtn_time.nsecs = 0;
proto_tree_add_time(tree, hf_sdnv_time, tvb, offset, sdnv_length, &dtn_time);
return sdnv_length;
}
static int
add_sdnv_to_tree(proto_tree *tree, tvbuff_t *tvb, packet_info* pinfo, int offset, int hf_sdnv)
{
proto_item *ti;
int sdnv_length;
int sdnv_value;
sdnv_value = evaluate_sdnv(tvb, offset, &sdnv_length);
ti = proto_tree_add_int(tree, hf_sdnv, tvb, offset, sdnv_length, sdnv_value);
if (sdnv_value < 0) {
expert_add_info(pinfo, ti, &ei_bundle_sdnv_length);
return 0;
}
return sdnv_length;
}
/*
* Pull out stuff from the dictionary
*/
static int
dissect_dictionary(packet_info *pinfo, proto_tree *tree, tvbuff_t *tvb, int offset, dictionary_data_t* dict_data,
guint8 pri_hdr_procflags, gchar **bundle_custodian, int creation_timestamp, int timestamp_sequence)
{
proto_tree *dict_tree;
const gchar* col_text;
col_text = col_get_text(pinfo->cinfo, COL_INFO);
dict_tree = proto_tree_add_subtree(tree, tvb, offset, dict_data->bundle_header_dict_length, ett_dictionary, NULL, "Dictionary");
/*
* If the dictionary length is 0, then the CBHE block compression method is applied. (RFC6260)
* So the scheme offset is the node number and the ssp offset is the service number.
* If destination scheme offset is 2 and destination ssp offset is 1, then the EID is
* ipn:2.1
*/
if (dict_data->bundle_header_dict_length == 0)
{
const gchar *src_node, *dst_node;
/*
* Destination info
*/
if (dict_data->dest_scheme_offset == 0 && dict_data->dest_ssp_offset == 0)
{
proto_tree_add_string(dict_tree, hf_bundle_dest_scheme, tvb, 0, 0, DTN_SCHEME_STR);
proto_tree_add_string(dict_tree, hf_bundle_dest_ssp, tvb, dict_data->dst_scheme_pos,
dict_data->dst_scheme_len + dict_data->dst_ssp_len, "none");
dst_node = "dtn:none";
}
else
{
proto_tree_add_string(dict_tree, hf_bundle_dest_scheme, tvb, 0, 0, IPN_SCHEME_STR);
proto_tree_add_string(dict_tree, hf_bundle_dest_ssp, tvb, dict_data->dst_scheme_pos,
dict_data->dst_scheme_len + dict_data->dst_ssp_len,
wmem_strdup_printf(wmem_packet_scope(), "%d.%d",dict_data->dest_scheme_offset,dict_data->dest_ssp_offset));
dst_node = wmem_strdup_printf(wmem_packet_scope(), "%s:%d.%d", IPN_SCHEME_STR,
dict_data->dest_scheme_offset, dict_data->dest_ssp_offset);
}
/*
* Source info
*/
if (dict_data->source_scheme_offset == 0 && dict_data->source_ssp_offset == 0)
{
proto_tree_add_string(dict_tree, hf_bundle_source_scheme, tvb, 0, 0, DTN_SCHEME_STR);
proto_tree_add_string(dict_tree, hf_bundle_source_ssp, tvb, dict_data->src_scheme_pos,
dict_data->src_scheme_len + dict_data->src_ssp_len, "none");
src_node = "dtn:none";
}
else
{
proto_tree_add_string(dict_tree, hf_bundle_source_scheme, tvb, 0, 0, IPN_SCHEME_STR);
proto_tree_add_string(dict_tree, hf_bundle_source_ssp, tvb, dict_data->src_scheme_pos,
dict_data->src_scheme_len + dict_data->src_ssp_len,
wmem_strdup_printf(wmem_packet_scope(), "%d.%d", dict_data->source_scheme_offset, dict_data->source_ssp_offset));
src_node = wmem_strdup_printf(wmem_packet_scope(), "%s:%d.%d", IPN_SCHEME_STR,
dict_data->source_scheme_offset, dict_data->source_ssp_offset);
}
/*
* Report to info
*/
if (dict_data->report_scheme_offset == 0 && dict_data->report_ssp_offset == 0)
{
proto_tree_add_string(dict_tree, hf_bundle_report_scheme, tvb, 0, 0, DTN_SCHEME_STR);
proto_tree_add_string(dict_tree, hf_bundle_report_ssp, tvb, dict_data->rpt_scheme_pos,
dict_data->rpt_scheme_len + dict_data->rpt_ssp_len, "none");
}
else
{
proto_tree_add_string(dict_tree, hf_bundle_report_scheme, tvb, 0, 0, IPN_SCHEME_STR);
proto_tree_add_string(dict_tree, hf_bundle_report_ssp, tvb, dict_data->rpt_scheme_pos,
dict_data->rpt_scheme_len + dict_data->rpt_ssp_len,
wmem_strdup_printf(wmem_packet_scope(), "%d.%d", dict_data->report_scheme_offset, dict_data->report_ssp_offset));
}
/*
* Custodian info
*/
if (dict_data->cust_scheme_offset == 0 && dict_data->cust_ssp_offset == 0)
{
proto_tree_add_string(dict_tree, hf_bundle_custodian_scheme, tvb, 0, 0, DTN_SCHEME_STR);
proto_tree_add_string(dict_tree, hf_bundle_custodian_ssp, tvb, dict_data->cust_scheme_pos,
dict_data->cust_scheme_len + dict_data->cust_ssp_len, "none");
}
else
{
proto_tree_add_string(dict_tree, hf_bundle_custodian_scheme, tvb, 0, 0, IPN_SCHEME_STR);
proto_tree_add_string(dict_tree, hf_bundle_custodian_ssp, tvb, dict_data->cust_scheme_pos,
dict_data->cust_scheme_len + dict_data->cust_ssp_len,
wmem_strdup_printf(wmem_packet_scope(), "%d.%d", dict_data->cust_scheme_offset, dict_data->cust_ssp_offset));
}
/* remember custodian, for use in checking cteb validity */
col_set_writable(pinfo->cinfo, COL_INFO, TRUE);
col_clear_fence(pinfo->cinfo, COL_INFO);
if (col_text && strstr(col_text, " > ")) {
if (! strstr(col_text, "[multiple]")) {
col_append_str(pinfo->cinfo, COL_INFO, ", [multiple]");
}
} else {
col_clear(pinfo->cinfo, COL_INFO);
col_add_fstr(pinfo->cinfo, COL_INFO, "%s > %s %d.%d", src_node, dst_node, creation_timestamp, timestamp_sequence);
}
col_set_fence(pinfo->cinfo, COL_INFO);
*bundle_custodian = wmem_strdup_printf(wmem_packet_scope(), "%s:%d.%d", IPN_SCHEME_STR,
dict_data->cust_scheme_offset, dict_data->cust_ssp_offset);
}
/*
* This pointer can be made to address outside the packet boundaries so we
* need to check for improperly formatted strings (no null termination).
*/
else
{
/*
* Destination info
*/
proto_tree_add_item(dict_tree, hf_bundle_dest_scheme,
tvb, offset + dict_data->dest_scheme_offset, -1, ENC_ASCII|ENC_NA);
proto_tree_add_item(dict_tree, hf_bundle_dest_ssp,
tvb, offset + dict_data->dest_ssp_offset, -1, ENC_ASCII|ENC_NA);
/*
* Source info
*/
proto_tree_add_item(dict_tree, hf_bundle_source_scheme,
tvb, offset + dict_data->source_scheme_offset, -1, ENC_ASCII|ENC_NA);
proto_tree_add_item(dict_tree, hf_bundle_source_ssp,
tvb, offset + dict_data->source_ssp_offset, -1, ENC_ASCII|ENC_NA);
/*
* Report to info
*/
proto_tree_add_item(dict_tree, hf_bundle_report_scheme,
tvb, offset + dict_data->report_scheme_offset, -1, ENC_ASCII|ENC_NA);
proto_tree_add_item(dict_tree, hf_bundle_report_ssp,
tvb, offset + dict_data->report_ssp_offset, -1, ENC_ASCII|ENC_NA);
/*
* Custodian info
*/
proto_tree_add_item(dict_tree, hf_bundle_custodian_scheme, tvb, offset + dict_data->cust_scheme_offset, -1, ENC_ASCII|ENC_NA);
proto_tree_add_item(dict_tree, hf_bundle_custodian_ssp, tvb, offset + dict_data->cust_ssp_offset, -1, ENC_ASCII|ENC_NA);
/*
* Add Source/Destination to INFO Field
*/
col_set_writable(pinfo->cinfo, COL_INFO, TRUE);
col_clear_fence(pinfo->cinfo, COL_INFO);
if (col_text && strstr(col_text, " > "))
col_append_str(pinfo->cinfo, COL_INFO, ", [multiple]");
else {
col_clear(pinfo->cinfo, COL_INFO);
col_add_fstr(pinfo->cinfo, COL_INFO, "%s:%s > %s:%s %d.%d",
tvb_get_stringz_enc(wmem_packet_scope(), tvb, offset + dict_data->source_scheme_offset, NULL, ENC_ASCII),
tvb_get_stringz_enc(wmem_packet_scope(), tvb, offset + dict_data->source_ssp_offset, NULL, ENC_ASCII),
tvb_get_stringz_enc(wmem_packet_scope(), tvb, offset + dict_data->dest_scheme_offset, NULL, ENC_ASCII),
tvb_get_stringz_enc(wmem_packet_scope(), tvb, offset + dict_data->dest_ssp_offset, NULL, ENC_ASCII),
creation_timestamp, timestamp_sequence);
}
col_set_fence(pinfo->cinfo, COL_INFO);
/* remember custodian, for use in checking cteb validity */
*bundle_custodian = wmem_strdup_printf(wmem_packet_scope(),
"%s:%s",
tvb_get_stringz_enc(wmem_packet_scope(),
tvb, offset + dict_data->cust_scheme_offset,
NULL, ENC_ASCII),
tvb_get_stringz_enc(wmem_packet_scope(),
tvb, offset + dict_data->cust_ssp_offset,
NULL, ENC_ASCII));
}
offset += dict_data->bundle_header_dict_length; /*Skip over dictionary*/
/*
* Do this only if Fragment Flag is set
*/
if (pri_hdr_procflags & BUNDLE_PROCFLAGS_FRAG_MASK) {
int sdnv_length;
sdnv_length = add_sdnv_to_tree(tree, tvb, pinfo, offset, hf_bundle_primary_fragment_offset);
if (sdnv_length < 0) {
return 0;
}
offset += sdnv_length;
sdnv_length = add_sdnv_to_tree(tree, tvb, pinfo, offset, hf_bundle_primary_total_adu_len);
if (sdnv_length < 0) {
return 0;
}
offset += sdnv_length;
}
return offset;
}
/*
* This routine returns 0 if header decoding fails, otherwise the length of the primary
* header, starting right after version number.
*/
static int
dissect_version_4_primary_header(packet_info *pinfo, proto_tree *primary_tree, tvbuff_t *tvb,
guint8* pri_hdr_procflags, gchar **bundle_custodian)
{
int bundle_header_length;
int offset = 1; /* Version Number already displayed */
int sdnv_length;
dictionary_data_t dict_data;
proto_item *ti;
proto_tree *srr_flag_tree, *proc_flag_tree, *cos_flag_tree;
/* Primary Header Processing Flags */
*pri_hdr_procflags = tvb_get_guint8(tvb, offset);
ti = proto_tree_add_item(primary_tree, hf_bundle_procflags, tvb,
offset, 1, ENC_BIG_ENDIAN);
proc_flag_tree = proto_item_add_subtree(ti, ett_proc_flags);
proto_tree_add_item(proc_flag_tree, hf_bundle_procflags_fragment,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(proc_flag_tree, hf_bundle_procflags_admin,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(proc_flag_tree, hf_bundle_procflags_dont_fragment,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(proc_flag_tree, hf_bundle_procflags_cust_xfer_req,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(proc_flag_tree, hf_bundle_procflags_dest_singleton,
tvb, offset, 1, ENC_BIG_ENDIAN);
/* Primary Header COS Flags */
++offset;
ti = proto_tree_add_item(primary_tree, hf_bundle_cosflags, tvb,
offset, 1, ENC_BIG_ENDIAN);
cos_flag_tree = proto_item_add_subtree(ti, ett_cos_flags);
proto_tree_add_item(cos_flag_tree, hf_bundle_cosflags_priority,
tvb, offset, 1, ENC_BIG_ENDIAN);
/* Status Report Request Flags */
++offset;
ti = proto_tree_add_item(primary_tree, hf_bundle_srrflags, tvb,
offset, 1, ENC_BIG_ENDIAN);
srr_flag_tree = proto_item_add_subtree(ti, ett_srr_flags);
proto_tree_add_item(srr_flag_tree, hf_bundle_srrflags_report_receipt,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(srr_flag_tree, hf_bundle_srrflags_report_cust_accept,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(srr_flag_tree, hf_bundle_srrflags_report_forward,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(srr_flag_tree, hf_bundle_srrflags_report_delivery,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(srr_flag_tree, hf_bundle_srrflags_report_deletion,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(srr_flag_tree, hf_bundle_srrflags_report_ack,
tvb, offset, 1, ENC_BIG_ENDIAN);
++offset;
bundle_header_length = evaluate_sdnv(tvb, offset, &sdnv_length);
ti = proto_tree_add_int(primary_tree, hf_bundle_primary_header_len, tvb, offset, sdnv_length,
bundle_header_length);
if (bundle_header_length < 0) {
expert_add_info_format(pinfo, ti, &ei_bundle_sdnv_length, "Bundle Header Length Error");
return 0;
}
offset += sdnv_length;
/* Ensure all fields have been initialized */
memset(&dict_data, 0, sizeof(dict_data));
/*
* Pick up offsets into dictionary (8 of them)
*/
dict_data.dest_scheme_offset = tvb_get_ntohs(tvb, offset);
dict_data.dst_scheme_pos = offset;
dict_data.dst_scheme_len = 2;
proto_tree_add_item(primary_tree, hf_bundle_dest_scheme_offset_u16,
tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
dict_data.dest_ssp_offset = tvb_get_ntohs(tvb, offset);
dict_data.dst_ssp_len = 2;
proto_tree_add_item(primary_tree, hf_bundle_dest_ssp_offset_u16,
tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
dict_data.source_scheme_offset = tvb_get_ntohs(tvb, offset);
dict_data.src_scheme_pos = offset;
dict_data.src_scheme_len = 2;
proto_tree_add_item(primary_tree, hf_bundle_source_scheme_offset_u16,
tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
dict_data.source_ssp_offset = tvb_get_ntohs(tvb, offset);
dict_data.src_ssp_len = 2;
proto_tree_add_item(primary_tree, hf_bundle_source_ssp_offset_u16,
tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
dict_data.report_scheme_offset = tvb_get_ntohs(tvb, offset);
dict_data.rpt_scheme_pos = offset;
dict_data.rpt_scheme_len = 2;
proto_tree_add_item(primary_tree, hf_bundle_report_scheme_offset_u16,
tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
dict_data.report_ssp_offset = tvb_get_ntohs(tvb, offset);
dict_data.rpt_ssp_len = 2;
proto_tree_add_item(primary_tree, hf_bundle_report_ssp_offset_u16,
tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
dict_data.cust_scheme_offset = tvb_get_ntohs(tvb, offset);
dict_data.cust_scheme_pos = offset;
dict_data.cust_scheme_len = 2;
proto_tree_add_item(primary_tree, hf_bundle_cust_scheme_offset_u16,
tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
dict_data.cust_ssp_offset = tvb_get_ntohs(tvb, offset);
dict_data.cust_ssp_len = 2;
proto_tree_add_item(primary_tree, hf_bundle_cust_ssp_offset_u16,
tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
proto_tree_add_item(primary_tree, hf_bundle_creation_timestamp,
tvb, offset, 8, ENC_BIG_ENDIAN);
offset += 8;
proto_tree_add_item(primary_tree, hf_bundle_lifetime, tvb, offset, 4, ENC_BIG_ENDIAN);
offset += 4;
dict_data.bundle_header_dict_length = evaluate_sdnv(tvb, offset, &sdnv_length);
ti = proto_tree_add_int(primary_tree, hf_bundle_primary_dictionary_len, tvb, offset, sdnv_length,
dict_data.bundle_header_dict_length);
if (dict_data.bundle_header_dict_length < 0) {
expert_add_info_format(pinfo, ti, &ei_bundle_sdnv_length, "Dictionary Header Length Error");
return 0;
}
offset += sdnv_length;
offset = dissect_dictionary(pinfo, primary_tree, tvb, offset, &dict_data, *pri_hdr_procflags, bundle_custodian, 0, 0);
return offset;
}
/*
* This routine returns 0 if header decoding fails, otherwise the length of the primary
* header, starting right after version number.
*/
static int
dissect_version_5_and_6_primary_header(packet_info *pinfo,
proto_tree *primary_tree, tvbuff_t *tvb,
guint8* pri_hdr_procflags, gchar **bundle_custodian)
{
guint64 bundle_processing_control_flags;
guint8 cosflags;
int bundle_header_length;
int offset = 1; /* Version Number already displayed */
int sdnv_length;
dictionary_data_t dict_data;
int timestamp_sequence;
int creation_timestamp;
guint8 srrflags;
proto_item *ti;
proto_item *ti_dst_scheme_offset, *ti_dst_ssp_offset;
proto_item *ti_src_scheme_offset, *ti_src_ssp_offset;
proto_item *ti_cust_scheme_offset, *ti_cust_ssp_offset;
proto_item *ti_rprt_scheme_offset, *ti_rprt_ssp_offset;
proto_tree *gen_flag_tree, *srr_flag_tree, *proc_flag_tree, *cos_flag_tree;
static const int * pri_flags[] = {
&hf_bundle_procflags_fragment,
&hf_bundle_procflags_admin,
&hf_bundle_procflags_dont_fragment,
&hf_bundle_procflags_cust_xfer_req,
&hf_bundle_procflags_dest_singleton,
&hf_bundle_procflags_application_ack,
NULL
};
static const int * srr_flags[] = {
&hf_bundle_srrflags_report_receipt,
&hf_bundle_srrflags_report_cust_accept,
&hf_bundle_srrflags_report_forward,
&hf_bundle_srrflags_report_delivery,
&hf_bundle_srrflags_report_deletion,
NULL
};
bundle_processing_control_flags = evaluate_sdnv_64(tvb, offset, &sdnv_length);
/* Primary Header Processing Flags */
*pri_hdr_procflags = (guint8) (bundle_processing_control_flags & 0x7f);
if (sdnv_length < 1 || sdnv_length > 8) {
expert_add_info_format(pinfo, primary_tree, &ei_bundle_control_flags_length,
"Wrong bundle control flag length: %d", sdnv_length);
return 0;
}
ti = proto_tree_add_item(primary_tree, hf_bundle_control_flags, tvb,
offset, sdnv_length, ENC_BIG_ENDIAN);
proc_flag_tree = proto_item_add_subtree(ti, ett_proc_flags);
ti = proto_tree_add_uint(proc_flag_tree, hf_bundle_procflags_general, tvb, offset,
sdnv_length, *pri_hdr_procflags);
gen_flag_tree = proto_item_add_subtree(ti, ett_gen_flags);
/* With the variability of sdnv_length, proto_tree_add_bitmask_value
can't be used */
proto_tree_add_bitmask_list_value(gen_flag_tree, tvb, offset, sdnv_length, pri_flags, *pri_hdr_procflags);
/* Primary Header COS Flags */
cosflags = (guint8) ((bundle_processing_control_flags >> 7) & 0x7f);
ti = proto_tree_add_uint(proc_flag_tree, hf_bundle_procflags_cos, tvb, offset,
sdnv_length, cosflags);
cos_flag_tree = proto_item_add_subtree(ti, ett_cos_flags);
proto_tree_add_uint(cos_flag_tree, hf_bundle_cosflags_priority, tvb, offset,
sdnv_length, cosflags);
/* Status Report Request Flags */
srrflags = (guint8) ((bundle_processing_control_flags >> 14) & 0x7f);
ti = proto_tree_add_uint(proc_flag_tree, hf_bundle_procflags_status, tvb, offset,
sdnv_length, srrflags);
srr_flag_tree = proto_item_add_subtree(ti, ett_srr_flags);
proto_tree_add_bitmask_list_value(srr_flag_tree, tvb, offset, sdnv_length, srr_flags, srrflags);
offset += sdnv_length;
/* -- hdr_length -- */
bundle_header_length = evaluate_sdnv(tvb, offset, &sdnv_length);
ti = proto_tree_add_int(primary_tree, hf_bundle_primary_header_len, tvb, offset, sdnv_length,
bundle_header_length);
if (bundle_header_length < 0) {
expert_add_info_format(pinfo, ti, &ei_bundle_sdnv_length, "Bundle Header Length Error");
return 0;
}
offset += sdnv_length;
/*
* Pick up offsets into dictionary (8 of them). Do rough sanity check that SDNV
* hasn't told us to access way past the Primary Header.
*/
/* Ensure all fields have been initialized */
memset(&dict_data, 0, sizeof(dict_data));
/* -- dest_scheme -- */
dict_data.dest_scheme_offset = evaluate_sdnv(tvb, offset, &sdnv_length);
dict_data.dst_scheme_pos = offset;
dict_data.dst_scheme_len = sdnv_length;
ti_dst_scheme_offset = proto_tree_add_int(primary_tree, hf_bundle_dest_scheme_offset_i32, tvb, offset, sdnv_length,
dict_data.dest_scheme_offset);
offset += sdnv_length;
/* -- dest_ssp -- */
dict_data.dest_ssp_offset = evaluate_sdnv(tvb, offset, &sdnv_length);
dict_data.dst_ssp_len = sdnv_length;
ti_dst_ssp_offset = proto_tree_add_int(primary_tree, hf_bundle_dest_ssp_offset_i32, tvb, offset, sdnv_length,
dict_data.dest_ssp_offset);
offset += sdnv_length;
/* -- source_scheme -- */
dict_data.source_scheme_offset = evaluate_sdnv(tvb, offset, &sdnv_length);
dict_data.src_scheme_pos = offset;
dict_data.src_scheme_len = sdnv_length;
ti_src_scheme_offset = proto_tree_add_int(primary_tree, hf_bundle_source_scheme_offset_i32, tvb, offset, sdnv_length,
dict_data.source_scheme_offset);
offset += sdnv_length;
/* -- source_ssp -- */
dict_data.source_ssp_offset = evaluate_sdnv(tvb, offset, &sdnv_length);
dict_data.src_ssp_len = sdnv_length;
ti_src_ssp_offset = proto_tree_add_int(primary_tree, hf_bundle_source_ssp_offset_i32, tvb, offset, sdnv_length,
dict_data.source_ssp_offset);
offset += sdnv_length;
/* -- report_scheme -- */
dict_data.report_scheme_offset = evaluate_sdnv(tvb, offset, &sdnv_length);
dict_data.rpt_scheme_pos = offset;
dict_data.rpt_scheme_len = sdnv_length;
ti_rprt_scheme_offset = proto_tree_add_int(primary_tree, hf_bundle_report_scheme_offset_i32, tvb, offset,
sdnv_length, dict_data.report_scheme_offset);
offset += sdnv_length;
/* -- report_ssp -- */
dict_data.report_ssp_offset = evaluate_sdnv(tvb, offset, &sdnv_length);
dict_data.rpt_ssp_len = sdnv_length;
ti_rprt_ssp_offset = proto_tree_add_int(primary_tree, hf_bundle_report_ssp_offset_i32, tvb, offset, sdnv_length,
dict_data.report_ssp_offset);
offset += sdnv_length;
/* -- cust_scheme -- */
dict_data.cust_scheme_offset = evaluate_sdnv(tvb, offset, &sdnv_length);
dict_data.cust_scheme_pos = offset;
dict_data.cust_scheme_len = sdnv_length;
ti_cust_scheme_offset = proto_tree_add_int(primary_tree, hf_bundle_cust_scheme_offset_i32, tvb, offset, sdnv_length,
dict_data.cust_scheme_offset);
offset += sdnv_length;
/* -- cust_ssp -- */
dict_data.cust_ssp_offset = evaluate_sdnv(tvb, offset, &sdnv_length);
dict_data.cust_ssp_len = sdnv_length;
ti_cust_ssp_offset = proto_tree_add_int(primary_tree, hf_bundle_cust_ssp_offset_i32, tvb, offset, sdnv_length,
dict_data.cust_ssp_offset);
offset += sdnv_length;
creation_timestamp = evaluate_sdnv(tvb, offset, &sdnv_length);
sdnv_length = add_sdnv_time_to_tree(primary_tree, tvb, offset, hf_bundle_primary_timestamp);
if (sdnv_length == 0)
return 0;
offset += sdnv_length;
/* -- timestamp_sequence -- */
timestamp_sequence = evaluate_sdnv(tvb, offset, &sdnv_length);
if (timestamp_sequence < 0) {
gint64 ts_seq = evaluate_sdnv_64(tvb, offset, &sdnv_length);
ti = proto_tree_add_int64(primary_tree, hf_bundle_primary_timestamp_seq_num64,
tvb, offset, sdnv_length, ts_seq);
if (ts_seq < 0) {
expert_add_info(pinfo, ti, &ei_bundle_timestamp_seq_num);
}
}
else {
proto_tree_add_int(primary_tree, hf_bundle_primary_timestamp_seq_num32,
tvb, offset, sdnv_length, timestamp_sequence);
}
offset += sdnv_length;
/* -- lifetime -- */
sdnv_length = add_sdnv_to_tree(primary_tree, tvb, pinfo, offset, hf_bundle_lifetime_sdnv);
offset += sdnv_length;
/* -- dict_length -- */
dict_data.bundle_header_dict_length = evaluate_sdnv(tvb, offset, &sdnv_length);
ti = proto_tree_add_int(primary_tree, hf_bundle_primary_dictionary_len, tvb, offset, sdnv_length,
dict_data.bundle_header_dict_length);
if (dict_data.bundle_header_dict_length < 0) {
expert_add_info_format(pinfo, ti, &ei_bundle_sdnv_length, "Dictionary Header Length Error");
return 0;
}
offset += sdnv_length;
if ((dict_data.dest_scheme_offset < 0) ||
(dict_data.bundle_header_dict_length > 0 && (dict_data.dest_scheme_offset > bundle_header_length))) {
expert_add_info_format(pinfo, ti_dst_scheme_offset, &ei_bundle_offset_error, "Destination Scheme Offset Error");
}
if ((dict_data.dest_ssp_offset < 0) ||
(dict_data.bundle_header_dict_length > 0 && (dict_data.dest_ssp_offset > bundle_header_length))) {
expert_add_info_format(pinfo, ti_dst_ssp_offset, &ei_bundle_offset_error, "Destination SSP Offset Error");
}
if ((dict_data.source_scheme_offset < 0) ||
(dict_data.bundle_header_dict_length > 0 && (dict_data.source_scheme_offset > bundle_header_length))) {
expert_add_info_format(pinfo, ti_src_scheme_offset, &ei_bundle_offset_error, "Source Scheme Offset Error");
}
if ((dict_data.source_ssp_offset < 0) ||
(dict_data.bundle_header_dict_length > 0 && (dict_data.source_ssp_offset > bundle_header_length))) {
expert_add_info_format(pinfo, ti_src_ssp_offset, &ei_bundle_offset_error, "Source SSP Offset Error");
}
if ((dict_data.report_scheme_offset < 0) ||
(dict_data.bundle_header_dict_length > 0 && (dict_data.report_scheme_offset > bundle_header_length))) {
expert_add_info_format(pinfo, ti_rprt_scheme_offset, &ei_bundle_offset_error, "Report Scheme Offset Error");
}
if ((dict_data.report_ssp_offset < 0) ||
(dict_data.bundle_header_dict_length > 0 && (dict_data.report_ssp_offset > bundle_header_length))) {
expert_add_info_format(pinfo, ti_rprt_ssp_offset, &ei_bundle_offset_error, "Report SSP Offset Error");
}
if ((dict_data.cust_scheme_offset < 0) ||
(dict_data.bundle_header_dict_length > 0 && (dict_data.cust_scheme_offset > bundle_header_length))) {
expert_add_info_format(pinfo, ti_cust_scheme_offset, &ei_bundle_offset_error, "Custodian Scheme Offset Error");
}
if ((dict_data.cust_ssp_offset < 0) ||
(dict_data.bundle_header_dict_length > 0 && (dict_data.cust_ssp_offset > bundle_header_length))) {
expert_add_info_format(pinfo, ti_cust_ssp_offset, &ei_bundle_offset_error, "Custodian SSP Offset Error");
}
offset = dissect_dictionary(pinfo, primary_tree, tvb, offset, &dict_data, *pri_hdr_procflags, bundle_custodian,
creation_timestamp, timestamp_sequence);
return offset;
}
/*
* offset is where the header starts.
* Return new offset, and set lastheader if failure.
*/
static int
dissect_payload_header(proto_tree *tree, tvbuff_t *tvb, packet_info *pinfo, int offset, guint8 version,
guint8 pri_hdr_procflags, gboolean *lastheader)
{
proto_item *payload_block, *payload_item, *ti;
proto_tree *payload_block_tree, *payload_tree;
int sdnv_length, payload_length;
payload_block_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_payload_hdr, &payload_block, "Payload Block");
payload_tree = proto_tree_add_subtree(payload_block_tree, tvb, offset, -1, ett_payload_hdr, &payload_item, "Payload Header");
proto_tree_add_uint(payload_tree, hf_bundle_payload_header_type, tvb, offset, 1, 1);
++offset;
/* Add tree for processing flags */
/* This is really a SDNV but there are only 7 bits defined so leave it this way*/
if (version == 4) {
static const gint *flags[] = {
&hf_bundle_payload_flags_replicate_hdr,
&hf_bundle_payload_flags_xmit_report,
&hf_bundle_payload_flags_discard_on_fail,
&hf_bundle_payload_flags_last_header,
NULL
};
guint8 procflags;
procflags = tvb_get_guint8(tvb, offset);
if (procflags & HEADER_PROCFLAGS_LAST_HEADER) {
*lastheader = TRUE;
}
else {
*lastheader = FALSE;
}
proto_tree_add_bitmask(payload_tree, tvb, offset, hf_bundle_payload_flags,
ett_payload_flags, flags, ENC_BIG_ENDIAN);
++offset;
}
else { /*Bundle Protocol Version 5*/
int control_flags;
proto_item *block_flag_item;
proto_tree *block_flag_tree;
control_flags = evaluate_sdnv(tvb, offset, &sdnv_length);
if (control_flags & BLOCK_CONTROL_LAST_BLOCK) {
*lastheader = TRUE;
}
else {
*lastheader = FALSE;
}
block_flag_item = proto_tree_add_item(payload_tree, hf_block_control_flags, tvb,
offset, sdnv_length, ENC_BIG_ENDIAN);
block_flag_tree = proto_item_add_subtree(block_flag_item, ett_block_flags);
proto_tree_add_item(block_flag_tree, hf_block_control_replicate,
tvb, offset, sdnv_length, ENC_BIG_ENDIAN);
proto_tree_add_item(block_flag_tree, hf_block_control_transmit_status,
tvb, offset, sdnv_length, ENC_BIG_ENDIAN);
proto_tree_add_item(block_flag_tree, hf_block_control_delete_bundle,
tvb, offset, sdnv_length, ENC_BIG_ENDIAN);
proto_tree_add_item(block_flag_tree, hf_block_control_last_block,
tvb, offset, sdnv_length, ENC_BIG_ENDIAN);
proto_tree_add_item(block_flag_tree, hf_block_control_discard_block,
tvb, offset, sdnv_length, ENC_BIG_ENDIAN);
proto_tree_add_item(block_flag_tree, hf_block_control_not_processed,
tvb, offset, sdnv_length, ENC_BIG_ENDIAN);
proto_tree_add_item(block_flag_tree, hf_block_control_eid_reference,
tvb, offset, sdnv_length, ENC_BIG_ENDIAN);
offset += sdnv_length;
}
payload_length = evaluate_sdnv(tvb, offset, &sdnv_length);
ti = proto_tree_add_int(payload_tree, hf_bundle_payload_length, tvb, offset, sdnv_length, payload_length);
if (payload_length < 0) {
expert_add_info(pinfo, ti, &ei_bundle_payload_length);
/* Force quiting */
*lastheader = TRUE;
return offset;
}
proto_item_set_len(payload_item, 2 + sdnv_length);
proto_item_set_len(payload_block, 2 + sdnv_length + payload_length);
offset += sdnv_length;
if (pri_hdr_procflags & BUNDLE_PROCFLAGS_ADMIN_MASK) {
gboolean success = FALSE;
/*
* XXXX - Have not allowed for admin record spanning multiple segments!
*/
offset = dissect_admin_record(payload_block_tree, tvb, pinfo, offset, payload_length, &success);
if (!success) {
/* Force quiting */
*lastheader = TRUE;
return offset;
}
} else {
proto_tree_add_string(payload_block_tree, hf_bundle_payload_data, tvb, offset, payload_length,
wmem_strdup_printf(wmem_packet_scope(), "<%d bytes>",payload_length));
offset += payload_length;
}
return offset;
}
/*
* Return the offset after the Administrative Record or set success = FALSE if analysis fails.
*/
static int
dissect_admin_record(proto_tree *primary_tree, tvbuff_t *tvb, packet_info *pinfo,
int offset, int payload_length, gboolean* success)
{
proto_item *admin_record_item;
proto_tree *admin_record_tree;
proto_item *timestamp_sequence_item;
guint8 record_type;
guint8 status;
int start_offset = offset;
int sdnv_length;
int timestamp_sequence;
int endpoint_length;
*success = FALSE;
admin_record_tree = proto_tree_add_subtree(primary_tree, tvb, offset, -1,
ett_admin_record, &admin_record_item, "Administrative Record");
record_type = tvb_get_guint8(tvb, offset);
proto_tree_add_item(admin_record_tree, hf_bundle_admin_record_type, tvb, offset, 1, ENC_BIG_ENDIAN);
switch ((record_type >> 4) & 0xf)
{
case ADMIN_REC_TYPE_STATUS_REPORT:
{
proto_item *status_flag_item;
proto_tree *status_flag_tree;
proto_tree_add_item(admin_record_tree, hf_bundle_admin_record_fragment, tvb, offset, 1, ENC_NA);
++offset;
/* Decode Bundle Status Report Flags */
status = tvb_get_guint8(tvb, offset);
status_flag_item = proto_tree_add_item(admin_record_tree,
hf_bundle_admin_statflags, tvb, offset, 1, ENC_BIG_ENDIAN);
status_flag_tree = proto_item_add_subtree(status_flag_item,
ett_admin_rec_status);
proto_tree_add_item(status_flag_tree, hf_bundle_admin_rcvd,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(status_flag_tree, hf_bundle_admin_accepted,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(status_flag_tree, hf_bundle_admin_forwarded,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(status_flag_tree, hf_bundle_admin_delivered,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(status_flag_tree, hf_bundle_admin_deleted,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(status_flag_tree, hf_bundle_admin_acked,
tvb, offset, 1, ENC_BIG_ENDIAN);
++offset;
proto_tree_add_item(admin_record_tree, hf_bundle_status_report_reason_code, tvb, offset, 1, ENC_BIG_ENDIAN);
++offset;
if (record_type & ADMIN_REC_FLAGS_FRAGMENT) {
sdnv_length = add_sdnv_to_tree(admin_record_tree, tvb, pinfo, offset, hf_bundle_admin_fragment_offset);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
sdnv_length = add_sdnv_to_tree(admin_record_tree, tvb, pinfo, offset, hf_bundle_admin_fragment_length);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
}
if (status & ADMIN_STATUS_FLAGS_RECEIVED) {
sdnv_length = add_dtn_time_to_tree(admin_record_tree, tvb, offset, hf_bundle_admin_receipt_time);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
}
if (status & ADMIN_STATUS_FLAGS_ACCEPTED) {
sdnv_length = add_dtn_time_to_tree(admin_record_tree, tvb, offset, hf_bundle_admin_accept_time);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
}
if (status & ADMIN_STATUS_FLAGS_FORWARDED) {
sdnv_length = add_dtn_time_to_tree(admin_record_tree, tvb, offset, hf_bundle_admin_forward_time);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
}
if (status & ADMIN_STATUS_FLAGS_DELIVERED) {
sdnv_length = add_dtn_time_to_tree(admin_record_tree, tvb, offset, hf_bundle_admin_delivery_time);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
}
if (status & ADMIN_STATUS_FLAGS_DELETED) {
sdnv_length = add_dtn_time_to_tree(admin_record_tree, tvb, offset, hf_bundle_admin_delete_time);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
}
if (status & ADMIN_STATUS_FLAGS_ACKNOWLEDGED) {
sdnv_length = add_dtn_time_to_tree(admin_record_tree, tvb, offset, hf_bundle_admin_ack_time);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
}
/* Get 2 SDNVs for Creation Timestamp */
sdnv_length = add_sdnv_time_to_tree(admin_record_tree, tvb, offset, hf_bundle_admin_timestamp_copy);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
timestamp_sequence = evaluate_sdnv(tvb, offset, &sdnv_length);
if (timestamp_sequence < 0) {
gint64 ts_seq = evaluate_sdnv_64(tvb, offset, &sdnv_length);
timestamp_sequence_item = proto_tree_add_int64(admin_record_tree, hf_bundle_admin_timestamp_seq_num64,
tvb, offset, sdnv_length, ts_seq);
if (ts_seq < 0) {
expert_add_info(pinfo, timestamp_sequence_item, &ei_bundle_timestamp_seq_num);
return offset;
}
}
else {
proto_tree_add_int(admin_record_tree, hf_bundle_admin_timestamp_seq_num32,
tvb, offset, sdnv_length, timestamp_sequence);
}
offset += sdnv_length;
endpoint_length = evaluate_sdnv(tvb, offset, &sdnv_length);
if (endpoint_length < 0) {
return offset;
}
proto_tree_add_int(admin_record_tree, hf_bundle_admin_endpoint_length, tvb, offset, sdnv_length, endpoint_length);
offset += sdnv_length;
/*
* Endpoint name may not be null terminated. This routine is supposed
* to add the null at the end of the string buffer.
*/
proto_tree_add_item(admin_record_tree, hf_bundle_admin_endpoint_id, tvb, offset, endpoint_length, ENC_NA|ENC_ASCII);
offset += endpoint_length;
break;
} /* case ADMIN_REC_TYPE_STATUS_REPORT */
case ADMIN_REC_TYPE_CUSTODY_SIGNAL:
{
proto_tree_add_item(admin_record_tree, hf_bundle_admin_record_fragment, tvb, offset, 1, ENC_NA);
++offset;
proto_tree_add_item(admin_record_tree, hf_bundle_custody_trf_succ_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(admin_record_tree, hf_bundle_custody_signal_reason, tvb, offset, 1, ENC_BIG_ENDIAN);
++offset;
if (record_type & ADMIN_REC_FLAGS_FRAGMENT) {
sdnv_length = add_sdnv_to_tree(admin_record_tree, tvb, pinfo, offset, hf_bundle_admin_fragment_offset);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
sdnv_length = add_sdnv_to_tree(admin_record_tree, tvb, pinfo, offset, hf_bundle_admin_fragment_length);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
}
/* Signal Time */
sdnv_length = add_dtn_time_to_tree(admin_record_tree, tvb, offset, hf_bundle_admin_signal_time);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
/* Timestamp copy */
sdnv_length = add_sdnv_time_to_tree(admin_record_tree, tvb, offset, hf_bundle_admin_timestamp_copy);
if (sdnv_length <= 0) {
return offset;
}
offset += sdnv_length;
timestamp_sequence = evaluate_sdnv(tvb, offset, &sdnv_length);
if (timestamp_sequence < 0) {
gint64 ts_seq = evaluate_sdnv_64(tvb, offset, &sdnv_length);
timestamp_sequence_item = proto_tree_add_int64(admin_record_tree, hf_bundle_admin_timestamp_seq_num64,
tvb, offset, sdnv_length, ts_seq);
if (ts_seq < 0) {
expert_add_info(pinfo, timestamp_sequence_item, &ei_bundle_timestamp_seq_num);
return offset;
}
}
else {
proto_tree_add_int(admin_record_tree, hf_bundle_admin_timestamp_seq_num32,
tvb, offset, sdnv_length, timestamp_sequence);
}
offset += sdnv_length;
endpoint_length = evaluate_sdnv(tvb, offset, &sdnv_length);
if (endpoint_length < 0) {
return 0;
}
proto_tree_add_int(admin_record_tree, hf_bundle_admin_endpoint_length, tvb, offset, sdnv_length, endpoint_length);
offset += sdnv_length;
proto_tree_add_item(admin_record_tree, hf_bundle_admin_endpoint_id, tvb, offset, endpoint_length, ENC_NA|ENC_ASCII);
offset += endpoint_length;
break;
} /* case ADMIN_REC_TYPE_CUSTODY_SIGNAL */
case ADMIN_REC_TYPE_AGGREGATE_CUSTODY_SIGNAL:
{
proto_item *ti;
int payload_bytes_processed = 0;
int right_edge = -1;
int fill_start;
int fill_length = -1;
int sdnv_length_start = -1;
int sdnv_length_gap = -1;
int sdnv_length_length = -1;
proto_tree_add_item(admin_record_tree, hf_bundle_admin_record_fragment, tvb, offset, 1, ENC_NA);
++offset;
++payload_bytes_processed;
proto_tree_add_item(admin_record_tree, hf_bundle_custody_trf_succ_flg, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(admin_record_tree, hf_bundle_custody_signal_reason, tvb, offset, 1, ENC_BIG_ENDIAN);
++offset;
++payload_bytes_processed;
/* process the first fill */
fill_start = evaluate_sdnv(tvb, offset, &sdnv_length_start);
ti = proto_tree_add_int(admin_record_tree, hf_bundle_custody_id_range_start, tvb, offset, sdnv_length_start, fill_start);
if (fill_start < 0 || sdnv_length_start < 0) {
expert_add_info_format(pinfo, ti, &ei_bundle_sdnv_length, "ACS: Unable to process CTEB Custody ID Range start SDNV");
return offset;
}
fill_length = evaluate_sdnv(tvb, offset + sdnv_length_start, &sdnv_length_length);
ti = proto_tree_add_int(admin_record_tree, hf_bundle_custody_id_range_end, tvb, offset,
sdnv_length_start + sdnv_length_length, fill_start + fill_length - 1);
if (fill_length < 0 || sdnv_length_length < 0) {
expert_add_info_format(pinfo, ti, &ei_bundle_sdnv_length, "ACS: Unable to process CTEB Custody ID Range length SDNV");
return offset;
}
right_edge = fill_start + fill_length;
offset += sdnv_length_start + sdnv_length_length;
payload_bytes_processed += sdnv_length_start + sdnv_length_length;
/* now attempt to consume all the rest of the data in the
* payload as additional fills */
while (payload_bytes_processed < payload_length) {
int fill_gap;
fill_gap = evaluate_sdnv(tvb, offset, &sdnv_length_gap);
ti = proto_tree_add_int(admin_record_tree, hf_bundle_custody_id_range_start, tvb, offset, sdnv_length_gap, fill_gap);
if (fill_gap < 0 || sdnv_length_gap < 0) {
expert_add_info_format(pinfo, ti, &ei_bundle_sdnv_length, "ACS: Unable to process CTEB Custody ID Range gap SDNV");
return offset;
}
fill_length = evaluate_sdnv(tvb, offset + sdnv_length_gap, &sdnv_length_length);
ti = proto_tree_add_int(admin_record_tree, hf_bundle_custody_id_range_end, tvb, offset,
sdnv_length_gap + sdnv_length_length, right_edge + fill_gap + fill_length - 1);
if (fill_length < 0 || sdnv_length_length < 0) {
expert_add_info_format(pinfo, ti, &ei_bundle_sdnv_length, "ACS: Unable to process CTEB Custody ID Range length SDNV");
return offset;
}
right_edge += fill_gap + fill_length;
offset += sdnv_length_gap + sdnv_length_length;
payload_bytes_processed += sdnv_length_gap + sdnv_length_length;
}
if (payload_bytes_processed > payload_length) {
expert_add_info_format(pinfo, ti, &ei_bundle_offset_error, "ACS: CTEB Custody ID Range data extends past payload length");
return offset;
}
break;
} /* case ADMIN_REC_TYPE_AGGREGATE_CUSTODY_SIGNAL */
case ADMIN_REC_TYPE_ANNOUNCE_BUNDLE:
default:
offset++;
break;
} /* End Switch */
proto_item_set_len(admin_record_item, offset - start_offset);
*success = TRUE;
return offset;
}
static int
display_extension_block(proto_tree *tree, tvbuff_t *tvb, packet_info *pinfo, int offset, gchar *bundle_custodian, gboolean *lastheader)
{
proto_item *block_item, *ti, *block_flag_replicate_item, *block_flag_eid_reference_item;
proto_tree *block_tree;
int sdnv_length;
int block_length;
int block_overhead;
guint8 type;
unsigned int control_flags;
proto_tree *block_flag_tree;
proto_item *block_flag_item;
type = tvb_get_guint8(tvb, offset);
block_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_metadata_hdr, &block_item, "Extension Block");
proto_tree_add_item(block_tree, hf_bundle_block_type_code, tvb, offset, 1, ENC_BIG_ENDIAN);
++offset;
block_overhead = 1;
control_flags = (unsigned int)evaluate_sdnv(tvb, offset, &sdnv_length);
if (control_flags & BLOCK_CONTROL_LAST_BLOCK) {
*lastheader = TRUE;
} else {
*lastheader = FALSE;
}
block_flag_item = proto_tree_add_uint(block_tree, hf_block_control_flags_sdnv, tvb,
offset, sdnv_length, control_flags);
block_flag_tree = proto_item_add_subtree(block_flag_item, ett_block_flags);
block_flag_replicate_item = proto_tree_add_boolean(block_flag_tree, hf_block_control_replicate,
tvb, offset, sdnv_length, control_flags);
proto_tree_add_boolean(block_flag_tree, hf_block_control_transmit_status,
tvb, offset, sdnv_length, control_flags);
proto_tree_add_boolean(block_flag_tree, hf_block_control_delete_bundle,
tvb, offset, sdnv_length, control_flags);
proto_tree_add_boolean(block_flag_tree, hf_block_control_last_block,
tvb, offset, sdnv_length, control_flags);
proto_tree_add_boolean(block_flag_tree, hf_block_control_discard_block,
tvb, offset, sdnv_length, control_flags);
proto_tree_add_boolean(block_flag_tree, hf_block_control_not_processed,
tvb, offset, sdnv_length, control_flags);
block_flag_eid_reference_item = proto_tree_add_boolean(block_flag_tree, hf_block_control_eid_reference,
tvb, offset, sdnv_length, control_flags);
offset += sdnv_length;
block_overhead += sdnv_length;
/* TODO: if this block has EID references, add them to display tree */
if (control_flags & BLOCK_CONTROL_EID_REFERENCE) {
int i;
int num_eid_ref;
num_eid_ref = evaluate_sdnv(tvb, offset, &sdnv_length);
offset += sdnv_length;
block_overhead += sdnv_length;
for (i = 0; i < num_eid_ref; i++)
{
evaluate_sdnv(tvb, offset, &sdnv_length);
offset += sdnv_length;
block_overhead += sdnv_length;
evaluate_sdnv(tvb, offset, &sdnv_length);
offset += sdnv_length;
block_overhead += sdnv_length;
}
}
block_length = evaluate_sdnv(tvb, offset, &sdnv_length);
ti = proto_tree_add_int(block_tree, hf_block_control_block_length, tvb, offset, sdnv_length, block_length);
if (block_length < 0) {
expert_add_info_format(pinfo, ti, &ei_bundle_offset_error, "Metadata Block Length Error");
/* Force quitting */
*lastheader = TRUE;
return offset;
}
offset += sdnv_length;
block_overhead += sdnv_length;
/* now we have enough info to know total length of metadata block */
proto_item_set_len(block_item, block_overhead + block_length);
switch (type)
{
case BUNDLE_BLOCK_TYPE_AUTHENTICATION:
case BUNDLE_BLOCK_TYPE_INTEGRITY:
case BUNDLE_BLOCK_TYPE_CONFIDENTIALITY:
case BUNDLE_BLOCK_TYPE_PREVIOUS_HOP_INSERT:
case BUNDLE_BLOCK_TYPE_METADATA_EXTENSION:
case BUNDLE_BLOCK_TYPE_EXTENSION_SECURITY:
{
proto_tree_add_string(block_tree, hf_bundle_unprocessed_block_data, tvb, offset, block_length, "Block data");
/* not yet dissected, skip past data */
offset += block_length;
break;
}
case BUNDLE_BLOCK_TYPE_CUSTODY_TRANSFER:
{
int custody_id;
const guint8 *cteb_creator_custodian_eid;
int cteb_creator_custodian_eid_length;
/* check requirements for Block Processing Control Flags */
if ((control_flags & BLOCK_CONTROL_REPLICATE) != 0) {
expert_add_info_format(pinfo, block_flag_replicate_item, &ei_bundle_block_control_flags, "ERROR: Replicate must be clear for CTEB");
}
if ((control_flags & BLOCK_CONTROL_EID_REFERENCE) != 0) {
expert_add_info_format(pinfo, block_flag_eid_reference_item, &ei_bundle_block_control_flags, "ERROR: EID-Reference must be clear for CTEB");
}
/* there are two elements in a CTEB, first is the custody ID */
custody_id = evaluate_sdnv(tvb, offset, &sdnv_length);
proto_tree_add_int(block_tree, hf_block_control_block_cteb_custody_id, tvb, offset, sdnv_length, custody_id);
offset += sdnv_length;
/* and second is the creator custodian EID */
cteb_creator_custodian_eid_length = block_length - sdnv_length;
ti = proto_tree_add_item_ret_string(block_tree, hf_block_control_block_cteb_creator_custodian_eid, tvb, offset,
cteb_creator_custodian_eid_length, ENC_ASCII, wmem_packet_scope(), &cteb_creator_custodian_eid);
/* also check if CTEB is valid, i.e. custodians match */
if (bundle_custodian == NULL) {
expert_add_info_format(pinfo, ti, &ei_block_control_block_cteb_invalid,
"CTEB Is NOT Valid (Bundle Custodian NULL)");
}
else if (strlen(cteb_creator_custodian_eid) != strlen(bundle_custodian)) {
expert_add_info_format(pinfo, ti, &ei_block_control_block_cteb_invalid,
"CTEB Is NOT Valid (Bundle Custodian [%s] != CTEB Custodian [%s])",
bundle_custodian, cteb_creator_custodian_eid);
}
else if (memcmp(cteb_creator_custodian_eid, bundle_custodian, strlen(bundle_custodian)) != 0) {
expert_add_info_format(pinfo, ti, &ei_block_control_block_cteb_invalid,
"CTEB Is NOT Valid (Bundle Custodian [%s] != CTEB Custodian [%s])",
bundle_custodian, cteb_creator_custodian_eid);
}
else {
expert_add_info(pinfo, ti, &ei_block_control_block_cteb_valid);
}
offset += cteb_creator_custodian_eid_length;
break;
}
case BUNDLE_BLOCK_TYPE_EXTENDED_COS:
{
int flags;
static const int * ecos_flags_fields[] = {
&hf_ecos_flags_critical,
&hf_ecos_flags_streaming,
&hf_ecos_flags_flowlabel,
&hf_ecos_flags_reliable,
NULL
};
/* check requirements for Block Processing Control Flags */
if ((control_flags & BLOCK_CONTROL_REPLICATE) == 0) {
expert_add_info_format(pinfo, block_flag_replicate_item, &ei_bundle_block_control_flags, "ERROR: Replicate must be set for ECOS");
}
if ((control_flags & BLOCK_CONTROL_EID_REFERENCE) != 0) {
expert_add_info_format(pinfo, block_flag_eid_reference_item, &ei_bundle_block_control_flags, "ERROR: EID-Reference must be clear for ECOS");
}
/* flags byte */
flags = (int)tvb_get_guint8(tvb, offset);
proto_tree_add_bitmask(block_tree, tvb, offset, hf_ecos_flags, ett_block_flags, ecos_flags_fields, ENC_BIG_ENDIAN);
offset += 1;
/* ordinal byte */
proto_tree_add_item(block_tree, hf_ecos_ordinal, tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
/* optional flow label sdnv */
if ((flags & ECOS_FLAGS_FLOWLABEL) != 0) {
int flow_label;
flow_label = evaluate_sdnv(tvb, offset, &sdnv_length);
ti = proto_tree_add_int(block_tree, hf_ecos_flow_label, tvb, offset, sdnv_length, flow_label);
if (flow_label < 0) {
expert_add_info_format(pinfo, ti, &ei_bundle_sdnv_length, "ECOS Flow Label Error");
/* Force quitting */
*lastheader = TRUE;
return offset;
}
offset += sdnv_length;
}
break;
}
default:
{
proto_tree_add_string(block_tree, hf_bundle_unprocessed_block_data, tvb, offset, block_length, "Block data");
/* unknown bundle type, skip past data */
offset += block_length;
break;
}
}
return offset;
}
/*3rd arg is number of bytes in field (returned)*/
int
evaluate_sdnv(tvbuff_t *tvb, int offset, int *bytecount)
{
int value = 0;
guint8 curbyte;
*bytecount = 0;
if (!tvb_bytes_exist(tvb, offset, 1)) {
return -1;
}
/*
* Get 1st byte and continue to get them while high-order bit is 1
*/
while ((curbyte = tvb_get_guint8(tvb, offset)) & ~SDNV_MASK) {
if (*bytecount >= (int) sizeof(int)) {
*bytecount = 0;
return -1;
}
value = value << 7;
value |= (curbyte & SDNV_MASK);
++offset;
++*bytecount;
if (!tvb_bytes_exist(tvb, offset, 1)) {
return -1;
}
}
/*
* Add in the byte whose high-order bit is 0 (last one)
*/
value = value << 7;
value |= (curbyte & SDNV_MASK);
++*bytecount;
return value;
}
/* Special Function to evaluate 64 bit SDNVs */
/*3rd arg is number of bytes in field (returned)*/
gint64
evaluate_sdnv_64(tvbuff_t *tvb, int offset, int *bytecount)
{
gint64 value = 0;
guint8 curbyte;
*bytecount = 0;
if (!tvb_bytes_exist(tvb, offset, 1)) {
return -1;
}
/*
* Get 1st byte and continue to get them while high-order bit is 1
*/
while ((curbyte = tvb_get_guint8(tvb, offset)) & ~SDNV_MASK) {
if (*bytecount >= (int) sizeof(gint64)) {
*bytecount = 0;
return -1;
}
value = value << 7;
value |= (curbyte & SDNV_MASK);
++offset;
++*bytecount;
if (!tvb_bytes_exist(tvb, offset, 1)) {
return -1;
}
}
/*
* Add in the byte whose high-order bit is 0 (last one)
*/
value = value << 7;
value |= (curbyte & SDNV_MASK);
++*bytecount;
return value;
}
/* Special Function to evaluate 32 bit unsigned SDNVs with error indication
* bytecount returns the number bytes consumed
* value returns the actual value
*
* result is TRUE (1) on success else FALSE (0)
*/
int
evaluate_sdnv32(tvbuff_t *tvb, int offset, int *bytecount, guint32 *value)
{
int result;
int num_bits_in_value;
guint8 curbyte;
guint8 high_bit;
*value = 0;
*bytecount = 0;
result = FALSE;
num_bits_in_value = 0;
if (tvb_bytes_exist(tvb, offset, 1)) {
/*
* Get 1st byte and continue to get them while high-order bit is 1
*/
result = TRUE;
/* Determine number of non-zero bits in first SDNV byte */
/* technically 0x80 0x80 ... 0x81 is a valid inefficient representation of "1" */
while ((0 == num_bits_in_value) && ((curbyte = tvb_get_guint8(tvb, offset)) & ~SDNV_MASK)) {
if (!tvb_bytes_exist(tvb, offset, 1)) {
result = FALSE;
break;
} else {
num_bits_in_value = 7;
high_bit = 0x40;
while ((num_bits_in_value > 0) && (!(curbyte & high_bit))) {
--num_bits_in_value;
high_bit = high_bit >> 1;
}
*value |= (curbyte & SDNV_MASK);
++offset;
++*bytecount;
}
}
/* Process additional bytes that have the high order bit set */
while (result && ((curbyte = tvb_get_guint8(tvb, offset)) & ~SDNV_MASK)) {
/* Since the high order bit is set there must be 7 low order bits after this byte */
if (!tvb_bytes_exist(tvb, offset, 1) || ((num_bits_in_value + 7) > (32 - 7))) {
result = FALSE;
} else {
*value = *value << 7;
*value |= (curbyte & SDNV_MASK);
++offset;
++*bytecount;
}
}
if (result) {
/*
* Add in the byte whose high-order bit is 0 (last one)
*/
*value = *value << 7;
*value |= (curbyte & SDNV_MASK);
++*bytecount;
} else {
*bytecount = 0;
}
}
return result;
}
/* Special Function to evaluate 64 bit unsigned SDNVs with error indication
* bytecount returns the number bytes consumed or zero on error
* value returns the actual value
*
* result is TRUE (1) on success else FALSE (0)
*/
int
evaluate_sdnv64(tvbuff_t *tvb, int offset, int *bytecount, guint64 *value)
{
int result;
int num_bits_in_value;
guint8 curbyte;
guint8 high_bit;
*value = 0;
*bytecount = 0;
result = FALSE;
num_bits_in_value = 0;
if (tvb_bytes_exist(tvb, offset, 1)) {
/*
* Get 1st byte and continue to get them while high-order bit is 1
*/
result = TRUE;
/* Determine number of non-zero bits in first SDNV byte */
/* technically 0x80 0x80 ... 0x81 is a valid inefficient representation of "1" */
while ((0 == num_bits_in_value) && ((curbyte = tvb_get_guint8(tvb, offset)) & ~SDNV_MASK)) {
if (!tvb_bytes_exist(tvb, offset, 1)) {
result = FALSE;
break;
} else {
num_bits_in_value = 7;
high_bit = 0x40;
while ((num_bits_in_value > 0) && (!(curbyte & high_bit))) {
--num_bits_in_value;
high_bit = high_bit >> 1;
}
*value |= (curbyte & SDNV_MASK);
++offset;
++*bytecount;
}
}
/* Process additional bytes that have the high order bit set */
while (result && ((curbyte = tvb_get_guint8(tvb, offset)) & ~SDNV_MASK)) {
/* Since the high order bit is set there must be 7 low order bits after this byte */
if (!tvb_bytes_exist(tvb, offset, 1) || ((num_bits_in_value + 7) > (64 - 7))) {
result = FALSE;
} else {
*value = *value << 7;
*value |= (curbyte & SDNV_MASK);
++offset;
++*bytecount;
}
}
if (result) {
/*
* Add in the byte whose high-order bit is 0 (last one)
*/
*value = *value << 7;
*value |= (curbyte & SDNV_MASK);
++*bytecount;
} else {
*bytecount = 0;
}
}
return result;
}
static guint
get_dtn_contact_header_len(packet_info *pinfo _U_, tvbuff_t *tvb,
int offset, void *data _U_)
{
int len, bytecount;
/* get length from sdnv */
len = evaluate_sdnv(tvb, offset+8, &bytecount);
if (len < 0)
return 0;
return len+bytecount+8;
}
static int
dissect_dtn_contact_header(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
{
proto_item *ti;
proto_tree *conv_proto_tree, *conv_tree, *conv_flag_tree;
int eid_length, sdnv_length;
int offset = 0;
col_set_str(pinfo->cinfo, COL_PROTOCOL, "TCPCL");
col_clear(pinfo->cinfo,COL_INFO); /* Clear out stuff in the info column */
col_add_str(pinfo->cinfo, COL_INFO, "Contact Header");
ti = proto_tree_add_item(tree, proto_tcp_conv, tvb, offset, -1, ENC_NA);
conv_proto_tree = proto_item_add_subtree(ti, ett_tcp_conv);
conv_tree = proto_tree_add_subtree(conv_proto_tree, tvb, offset, -1, ett_tcp_conv, NULL, "Contact Header");
proto_tree_add_item(conv_tree, hf_contact_hdr_magic, tvb, offset, 4, ENC_NA|ENC_ASCII);
offset += 4;
proto_tree_add_item(conv_tree, hf_contact_hdr_version, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
/* Subtree to expand the bits in the Contact Header Flags */
ti = proto_tree_add_item(conv_tree, hf_contact_hdr_flags, tvb, offset, 1, ENC_BIG_ENDIAN);
conv_flag_tree = proto_item_add_subtree(ti, ett_contact_hdr_flags);
proto_tree_add_item(conv_flag_tree, hf_contact_hdr_flags_ack_req, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(conv_flag_tree, hf_contact_hdr_flags_frag_enable, tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(conv_flag_tree, hf_contact_hdr_flags_nak, tvb, offset, 1, ENC_BIG_ENDIAN);
offset++;
proto_tree_add_item(conv_tree, hf_contact_hdr_keep_alive, tvb, offset, 2, ENC_BIG_ENDIAN);
offset += 2;
/*
* New format Contact header has length field followed by Bundle Header.
*/
eid_length = evaluate_sdnv(tvb, offset, &sdnv_length);
ti = proto_tree_add_int(tree, hf_contact_hdr_local_eid_length, tvb, offset, sdnv_length, eid_length);
if (eid_length < 0) {
expert_add_info(pinfo, ti, &ei_bundle_sdnv_length);
return offset;
}
proto_tree_add_item(conv_tree, hf_contact_hdr_local_eid, tvb, sdnv_length + offset, eid_length, ENC_NA|ENC_ASCII);
return tvb_captured_length(tvb);
}
static guint
get_tcpcl_pdu_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset, void *data _U_)
{
int len, bytecount;
guint8 conv_hdr = tvb_get_guint8(tvb, offset);
switch (conv_hdr & TCP_CONVERGENCE_TYPE_MASK)
{
case TCP_CONVERGENCE_DATA_SEGMENT:
/* get length from sdnv */
len = evaluate_sdnv(tvb, offset+1, &bytecount);
if (len < 0)
return 0;
return len+bytecount+1;
case TCP_CONVERGENCE_ACK_SEGMENT:
/* get length from sdnv */
len = evaluate_sdnv(tvb, offset+1, &bytecount);
if (len < 0)
return 0;
return bytecount+1;
case TCP_CONVERGENCE_KEEP_ALIVE:
case TCP_CONVERGENCE_REFUSE_BUNDLE:
/* always 1 byte */
return 1;
case TCP_CONVERGENCE_SHUTDOWN:
len = 1;
if (conv_hdr & TCP_CONVERGENCE_SHUTDOWN_REASON) {
len += 1;
}
if (conv_hdr & TCP_CONVERGENCE_SHUTDOWN_DELAY) {
len += 2;
}
return len;
}
/* This probably isn't a TCPCL/Bundle packet, so just stop dissection */
return -1;
}
static int
dissect_tcpcl_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data)
{
guint8 conv_hdr;
int offset = 0;
int sdnv_length, segment_length, convergence_hdr_size;
proto_item *ci, *sub_item;
proto_tree *conv_proto_tree, *conv_tree, *sub_tree;
fragment_head *frag_msg;
tvbuff_t *new_tvb;
gboolean more_frags;
int processed_length = 0;
const gchar* col_text;
gboolean bundle_in_col_info;
static guint32 frag_id = 0;
static guint32 last_frame = 0;
static int last_raw_offset = 0;
if (last_frame != pinfo->fd->num || tvb_raw_offset(tvb) < last_raw_offset)
frag_id = 0;
last_frame = pinfo->fd->num;
last_raw_offset = tvb_raw_offset(tvb);
col_set_str(pinfo->cinfo, COL_PROTOCOL, "TCPCL");
col_clear(pinfo->cinfo,COL_INFO); /* Clear out stuff in the info column */
col_text = col_get_text(pinfo->cinfo, COL_INFO);
bundle_in_col_info = (col_text && strstr(col_text, " > "));
ci = proto_tree_add_item(tree, proto_tcp_conv, tvb, offset, -1, ENC_NA);
conv_proto_tree = proto_item_add_subtree(ci, ett_tcp_conv);
conv_tree = proto_tree_add_subtree(conv_proto_tree, tvb, 0, -1, ett_tcp_conv_hdr, NULL, "TCP Convergence Header");
conv_hdr = tvb_get_guint8(tvb, offset);
proto_tree_add_item(conv_tree, hf_tcp_convergence_pkt_type, tvb, offset, 1, ENC_BIG_ENDIAN);
col_add_str(pinfo->cinfo, COL_INFO, val_to_str_const((conv_hdr>>4)&0xF, packet_type_vals, "Unknown"));
switch (conv_hdr & TCP_CONVERGENCE_TYPE_MASK)
{
case TCP_CONVERGENCE_DATA_SEGMENT:
sub_item = proto_tree_add_item(conv_tree, hf_tcp_convergence_data_procflags, tvb,
offset, 1, ENC_BIG_ENDIAN);
sub_tree = proto_item_add_subtree(sub_item, ett_conv_flags);
proto_tree_add_item(sub_tree, hf_tcp_convergence_data_procflags_start,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sub_tree, hf_tcp_convergence_data_procflags_end,
tvb, offset, 1, ENC_BIG_ENDIAN);
/* Only Start and End flags (bits 0 & 1) are valid in Data Segment */
if ((conv_hdr & ~(TCP_CONVERGENCE_TYPE_MASK | TCP_CONVERGENCE_DATA_FLAGS)) != 0) {
expert_add_info(pinfo, sub_item, &ei_tcp_convergence_data_flags);
}
segment_length = evaluate_sdnv(tvb, 1, &sdnv_length);
sub_item = proto_tree_add_int(conv_tree, hf_tcp_convergence_data_segment_length, tvb, 1, sdnv_length, segment_length);
if (segment_length < 0) {
expert_add_info(pinfo, sub_item, &ei_tcp_convergence_segment_length);
return 1;
}
convergence_hdr_size = sdnv_length + 1;
/*
* 1/11/2006 - If I got here, I should have a complete convergence layer
* "segment" beginning at frame_offset. However that might not be a
* complete bundle. Or there might be a complete bundle plus one or more
* additional convergence layer headers.
*/
new_tvb = NULL;
sub_tree = NULL;
if ((conv_hdr & TCP_CONVERGENCE_DATA_END_FLAG) == TCP_CONVERGENCE_DATA_END_FLAG) {
more_frags = FALSE;
}
else {
more_frags = TRUE;
}
frag_msg = fragment_add_seq_next(&msg_reassembly_table,
tvb, offset + convergence_hdr_size,
pinfo, frag_id, data,
segment_length, more_frags);
if (!more_frags) ++frag_id;
processed_length = convergence_hdr_size + segment_length;
if (frag_msg && !more_frags) {
int save_fd_head_layer = frag_msg->reas_in_layer_num;
frag_msg->reas_in_layer_num = pinfo->curr_layer_num;
sub_item = proto_tree_add_item(tree, proto_bundle, tvb, offset, -1, ENC_NA);
sub_tree = proto_item_add_subtree(sub_item, ett_bundle);
new_tvb = process_reassembled_data(tvb, offset + convergence_hdr_size,
pinfo, "Reassembled DTN", frag_msg,
&msg_frag_items, NULL, sub_tree);
frag_msg->reas_in_layer_num = save_fd_head_layer;
}
if (new_tvb) {
if (0 == call_dissector_with_data(bundle_handle, new_tvb, pinfo, sub_tree, data)) {
/*Couldn't parse bundle, treat as raw data */
call_data_dissector(new_tvb, pinfo, sub_tree);
return tvb_captured_length(tvb);
}
}
else {
/*
* If there are 2 segments, the second of which is very short, this
* gets displayed instead of the usual Source EID/Destination EID in
* the Bundle Dissection frame. If these statements are left out entirely,
* nothing is displayed, i.e., there seems to be no way to get the
* Source/Destination in the 2-segment case. I'll leave it in because I
* think it is informative in the multi-segment case although confusing in the
* 2-segment case.
*/
col_add_str(pinfo->cinfo, COL_INFO, "[Bundle TCPCL Segment]");
}
break;
case TCP_CONVERGENCE_ACK_SEGMENT:
if (bundle_in_col_info) {
if (!strstr(col_text, ", TCPL ACK")) {
col_add_str(pinfo->cinfo, COL_INFO, ", TCPL ACK Segment(s)");
}
} else {
col_set_str(pinfo->cinfo, COL_INFO, "TCPL ACK Segment(s)");
}
segment_length = evaluate_sdnv(tvb, offset+1, &sdnv_length);
sub_item = proto_tree_add_int(conv_tree, hf_tcp_convergence_ack_length, tvb, offset+1, sdnv_length, segment_length);
if (segment_length < 0) {
expert_add_info(pinfo, sub_item, &ei_tcp_convergence_ack_length);
processed_length = tvb_captured_length(tvb);
} else {
processed_length = sdnv_length + 1;
}
break;
case TCP_CONVERGENCE_KEEP_ALIVE:
if (bundle_in_col_info) {
if (!strstr(col_text, ", TCPL KEEPALIVE")) {
col_add_str(pinfo->cinfo, COL_INFO, ", TCPL KEEPALIVE Segment");
}
} else {
col_set_str(pinfo->cinfo, COL_INFO, "TCPL KEEPALIVE Sgement");
}
/*No valid flags in Keep Alive*/
processed_length = 1;
break;
case TCP_CONVERGENCE_SHUTDOWN:
if (bundle_in_col_info) {
if (!strstr(col_text, ", TCPL SHUTDOWN")) {
col_add_str(pinfo->cinfo, COL_INFO, ", TCPL SHUTDOWN Segment");
}
} else {
col_set_str(pinfo->cinfo, COL_INFO, "TCPL SHUTDOWN Sgement");
}
/* Add tree for Shutdown Flags */
sub_item = proto_tree_add_item(conv_tree, hf_tcp_convergence_shutdown_flags, tvb,
offset, 1, ENC_BIG_ENDIAN);
sub_tree = proto_item_add_subtree(sub_item, ett_shutdown_flags);
proto_tree_add_item(sub_tree, hf_tcp_convergence_shutdown_flags_reason,
tvb, offset, 1, ENC_BIG_ENDIAN);
proto_tree_add_item(sub_tree, hf_tcp_convergence_shutdown_flags_delay,
tvb, offset, 1, ENC_BIG_ENDIAN);
offset += 1;
if (conv_hdr & TCP_CONVERGENCE_SHUTDOWN_REASON) {
proto_tree_add_item(conv_tree,
hf_tcp_convergence_shutdown_reason, tvb,
offset, 1, ENC_BIG_ENDIAN);
offset += 1;
}
if (conv_hdr & TCP_CONVERGENCE_SHUTDOWN_DELAY) {
proto_tree_add_item(conv_tree,
hf_tcp_convergence_shutdown_delay, tvb,
offset, 2, ENC_BIG_ENDIAN);
}
break;
case TCP_CONVERGENCE_REFUSE_BUNDLE:
if (bundle_in_col_info) {
if (!strstr(col_text, ", TCPL REFUSE")) {
col_add_str(pinfo->cinfo, COL_INFO, ", TCPL REFUSE_BUNDLE Segment");
}
} else {
col_set_str(pinfo->cinfo, COL_INFO, "TCPL REFUSE_BUNDLE Sgement");
}
/*No valid flags*/
processed_length = tvb_captured_length(tvb);
break;
}
return processed_length;
}
static int
dissect_tcpcl(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
{
guint8 conv_hdr;
int offset, bytecount;
int processed_length;
/* Make sure we have a convergence header byte */
if (!tvb_bytes_exist(tvb, 0, 1))
return 0;
conv_hdr = tvb_get_guint8(tvb, 0);
switch (conv_hdr & TCP_CONVERGENCE_TYPE_MASK)
{
case TCP_CONVERGENCE_DATA_SEGMENT:
case TCP_CONVERGENCE_ACK_SEGMENT:
/* ensure sdnv */
offset = 1;
bytecount = 1;
if (!tvb_bytes_exist(tvb, offset, 1)) {
pinfo->desegment_offset = 0;
pinfo->desegment_len = DESEGMENT_ONE_MORE_SEGMENT;
return 0;
}
while (tvb_get_guint8(tvb, offset) & ~SDNV_MASK) {
if (bytecount > (int)sizeof(int)) {
/* invalid length field */
return 0;
}
bytecount++;
offset++;
if (!tvb_bytes_exist(tvb, offset, 1)) {
pinfo->desegment_offset = 0;
pinfo->desegment_len = DESEGMENT_ONE_MORE_SEGMENT;
return 0;
}
}
break;
case TCP_CONVERGENCE_KEEP_ALIVE:
case TCP_CONVERGENCE_REFUSE_BUNDLE:
/* always 1 byte */
break;
case TCP_CONVERGENCE_SHUTDOWN:
if ((conv_hdr &
~(TCP_CONVERGENCE_TYPE_MASK | TCP_CONVERGENCE_SHUTDOWN_FLAGS)) != 0) {
/* Not for us */
return 0;
}
break;
default:
if (conv_hdr == (guint8)magic[0]) {
if (!tvb_bytes_exist(tvb, 0, 4) || tvb_memeql(tvb, 0, magic, 4)) {
/* Not for us */
return 0;
}
tcp_dissect_pdus(tvb, pinfo, tree, TRUE, 8, get_dtn_contact_header_len, dissect_dtn_contact_header, data);
return tvb_captured_length(tvb);
}
/* Not for us */
return 0;
};
processed_length = get_tcpcl_pdu_len(pinfo, tvb, 0, data);
tcp_dissect_pdus(tvb, pinfo, tree, TRUE, 1, get_tcpcl_pdu_len, dissect_tcpcl_pdu, data);
return processed_length;
}
static int
dissect_bundle(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
{
proto_item *ti, *ti_bundle_protocol;
proto_tree *bundle_tree, *primary_tree;
int primary_header_size;
gboolean lastheader = FALSE;
int offset = 0;
guint8 version, pri_hdr_procflags;
/* Custodian from Primary Block, used to validate CTEB */
gchar *bundle_custodian = NULL;
version = tvb_get_guint8(tvb, offset); /* Primary Header Version */
if ((version != 4) && (version != 5) && (version != 6)) {
return 0;
}
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Bundle");
/* Clear out stuff in the info column */
col_clear(pinfo->cinfo,COL_INFO);
ti_bundle_protocol = proto_tree_add_item(tree, proto_bundle, tvb, offset, -1, ENC_NA);
bundle_tree = proto_item_add_subtree(ti_bundle_protocol, ett_bundle);
primary_tree = proto_tree_add_subtree(bundle_tree, tvb, offset, -1, ett_primary_hdr, &ti, "Primary Bundle Header");
proto_tree_add_item(primary_tree, hf_bundle_pdu_version, tvb, offset, 1, ENC_BIG_ENDIAN);
if (version == 4) {
primary_header_size = dissect_version_4_primary_header(pinfo, primary_tree, tvb,
&pri_hdr_procflags, &bundle_custodian);
}
else {
primary_header_size = dissect_version_5_and_6_primary_header(pinfo, primary_tree, tvb,
&pri_hdr_procflags, &bundle_custodian);
}
if (primary_header_size == 0) { /*Couldn't parse primary header*/
col_add_str(pinfo->cinfo, COL_INFO, "Protocol Error");
return(0); /*Give up*/
}
proto_item_set_len(ti, primary_header_size);
offset = primary_header_size;
/*
* Done with primary header; decode the remaining headers
*/
while (lastheader == FALSE) {
guint8 next_header_type;
next_header_type = tvb_get_guint8(tvb, offset);
if (next_header_type == BUNDLE_BLOCK_TYPE_PAYLOAD) {
/*
* Returns payload size or 0 if can't parse payload
*/
offset = dissect_payload_header(bundle_tree, tvb, pinfo, offset, version, pri_hdr_procflags, &lastheader);
}
else { /*Assume anything else is a Metadata Block*/
offset = display_extension_block(bundle_tree, tvb, pinfo, offset, bundle_custodian, &lastheader);
}
}
proto_item_set_len(ti_bundle_protocol, offset);
return(offset);
}
static void
bundle_defragment_init(void) {
reassembly_table_init(&msg_reassembly_table,
&addresses_reassembly_table_functions);
}
static void
bundle_defragment_cleanup(void) {
reassembly_table_destroy(&msg_reassembly_table);
}
void proto_reg_handoff_bundle(void);
void proto_register_bundle(void);
void
proto_register_bundle(void)
{
static hf_register_info hf[] = {
{&hf_bundle_pdu_version,
{"Bundle Version", "bundle.version",
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_msg_fragments,
{"Message Fragments", "bundle.msg.fragments",
FT_NONE, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_msg_fragment,
{"Message Fragment", "bundle.msg.fragment",
FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_msg_fragment_overlap,
{"Message fragment overlap", "bundle.msg.fragment.overlap",
FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_msg_fragment_overlap_conflicts,
{"Message fragment overlapping with conflicting data",
"bundle.msg.fragment.overlap.conflicts",
FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_msg_fragment_multiple_tails,
{"Message has multiple tails", "bundle.msg.fragment.multiple_tails",
FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_msg_fragment_too_long_fragment,
{"Message fragment too long", "bundle.msg.fragment.too_long_fragment",
FT_BOOLEAN, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_msg_fragment_error,
{"Message defragmentation error", "bundle.msg.fragment.error",
FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_msg_fragment_count,
{"Message fragment count", "bundle.msg.fragment.count",
FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_msg_reassembled_in,
{"Reassembled in", "bundle.msg.reassembled.in",
FT_FRAMENUM, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_msg_reassembled_length,
{"Reassembled DTN length", "bundle.msg.reassembled.length",
FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_procflags,
{"Primary Header Processing Flags", "bundle.primary.proc.flag",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_procflags_fragment,
{"Bundle is a Fragment", "bundle.primary.proc.frag",
FT_BOOLEAN, 8, NULL, BUNDLE_PROCFLAGS_FRAG_MASK, NULL, HFILL}
},
{&hf_bundle_procflags_admin,
{"Administrative Record", "bundle.primary.proc.admin",
FT_BOOLEAN, 8, NULL, BUNDLE_PROCFLAGS_ADMIN_MASK, NULL, HFILL}
},
{&hf_bundle_procflags_dont_fragment,
{"Do Not Fragment Bundle", "bundle.primary.proc.dontfrag",
FT_BOOLEAN, 8, NULL, BUNDLE_PROCFLAGS_DONTFRAG_MASK, NULL, HFILL}
},
{&hf_bundle_procflags_cust_xfer_req,
{"Request Custody Transfer", "bundle.primary.proc.xferreq",
FT_BOOLEAN, 8, NULL, BUNDLE_PROCFLAGS_XFERREQ_MASK, NULL, HFILL}
},
{&hf_bundle_procflags_dest_singleton,
{"Destination is Singleton", "bundle.primary.proc.single",
FT_BOOLEAN, 8, NULL, BUNDLE_PROCFLAGS_SINGLETON_MASK, NULL, HFILL}
},
{&hf_bundle_procflags_application_ack,
{"Request Acknowledgement by Application", "bundle.primary.proc.ack",
FT_BOOLEAN, 8, NULL, BUNDLE_PROCFLAGS_APP_ACK_MASK, NULL, HFILL}
},
{&hf_bundle_control_flags,
{"Bundle Processing Control Flags", "bundle.primary.proc.flag",
FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_procflags_general,
{"General Flags", "bundle.primary.proc.gen",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_procflags_cos,
{"Class of Service Flags", "bundle.primary.proc.cos",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_procflags_status,
{"Status Report Flags", "bundle.primary.proc.status",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_cosflags,
{"Primary Header COS Flags", "bundle.primary.cos.flags",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_cosflags_priority,
{"Priority", "bundle.primary.cos.priority",
FT_UINT8, BASE_DEC, VALS(cosflags_priority_vals), BUNDLE_COSFLAGS_PRIORITY_MASK, NULL, HFILL}
},
{&hf_bundle_srrflags,
{"Primary Header Report Request Flags", "bundle.primary.srr.flag",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_srrflags_report_receipt,
{"Request Reception Report", "bundle.primary.srr.report",
FT_BOOLEAN, 8, NULL, BUNDLE_SRRFLAGS_REPORT_MASK, NULL, HFILL}
},
{&hf_bundle_srrflags_report_cust_accept,
{"Request Report of Custody Acceptance", "bundle.primary.srr.custaccept",
FT_BOOLEAN, 8, NULL, BUNDLE_SRRFLAGS_CUSTODY_MASK, NULL, HFILL}
},
{&hf_bundle_srrflags_report_forward,
{"Request Report of Bundle Forwarding", "bundle.primary.srr.forward",
FT_BOOLEAN, 8, NULL, BUNDLE_SRRFLAGS_FORWARD_MASK, NULL, HFILL}
},
{&hf_bundle_srrflags_report_delivery,
{"Request Report of Bundle Delivery", "bundle.primary.srr.delivery",
FT_BOOLEAN, 8, NULL, BUNDLE_SRRFLAGS_DELIVERY_MASK, NULL, HFILL}
},
{&hf_bundle_srrflags_report_deletion,
{"Request Report of Bundle Deletion", "bundle.primary.srr.delete",
FT_BOOLEAN, 8, NULL, BUNDLE_SRRFLAGS_DELETION_MASK, NULL, HFILL}
},
{&hf_bundle_srrflags_report_ack,
{"Request Report of Application Ack", "bundle.primary.srr.ack",
FT_BOOLEAN, 8, NULL, BUNDLE_SRRFLAGS_ACK_MASK, NULL, HFILL}
},
{&hf_bundle_primary_header_len,
{"Bundle Header Length", "bundle.primary.len",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_primary_dictionary_len,
{"Dictionary Length", "bundle.primary.dictionary_len",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_primary_fragment_offset,
{"Fragment Offset", "bundle.primary.fragment_offset",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_primary_total_adu_len,
{"Total Application Data Unit Length", "bundle.primary.total_adu_len",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_primary_timestamp_seq_num64,
{"Timestamp Sequence Number", "bundle.primary.timestamp_seq_num",
FT_INT64, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_primary_timestamp_seq_num32,
{"Timestamp Sequence Number", "bundle.primary.timestamp_seq_num",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_primary_timestamp,
{"Timestamp", "bundle.primary.timestamp",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_dest_scheme_offset_u16,
{"Destination Scheme Offset", "bundle.primary.destschemeoff",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_dest_scheme_offset_i32,
{"Destination Scheme Offset", "bundle.primary.destschemeoff",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_dest_ssp_offset_u16,
{"Destination SSP Offset", "bundle.primary.destssspoff",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_dest_ssp_offset_i32,
{"Destination SSP Offset", "bundle.primary.destssspoff",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_source_scheme_offset_u16,
{"Source Scheme Offset", "bundle.primary.srcschemeoff",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_source_scheme_offset_i32,
{"Source Scheme Offset", "bundle.primary.srcschemeoff",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_source_ssp_offset_u16,
{"Source SSP Offset", "bundle.primary.srcsspoff",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_source_ssp_offset_i32,
{"Source SSP Offset", "bundle.primary.srcsspoff",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_report_scheme_offset_u16,
{"Report Scheme Offset", "bundle.primary.rptschemeoff",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_report_scheme_offset_i32,
{"Report Scheme Offset", "bundle.primary.rptschemeoff",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_report_ssp_offset_u16,
{"Report SSP Offset", "bundle.primary.rptsspoff",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_report_ssp_offset_i32,
{"Report SSP Offset", "bundle.primary.rptsspoff",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_cust_scheme_offset_u16,
{"Custodian Scheme Offset", "bundle.primary.custschemeoff",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_cust_scheme_offset_i32,
{"Custodian Scheme Offset", "bundle.primary.custschemeoff",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_cust_ssp_offset_u16,
{"Custodian SSP Offset", "bundle.primary.custsspoff",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_cust_ssp_offset_i32,
{"Custodian SSP Offset", "bundle.primary.custsspoff",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_dest_scheme,
{"Destination Scheme", "bundle.primary.destination_scheme",
FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_dest_ssp,
{"Destination", "bundle.primary.destination",
FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_source_scheme,
{"Source Scheme", "bundle.primary.source_scheme",
FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_source_ssp,
{"Source", "bundle.primary.source",
FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_report_scheme,
{"Report Scheme", "bundle.primary.report_scheme",
FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_report_ssp,
{"Report", "bundle.primary.report",
FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_custodian_scheme,
{"Custodian Scheme", "bundle.primary.custodian_scheme",
FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_custodian_ssp,
{"Custodian", "bundle.primary.custodian",
FT_STRINGZ, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_creation_timestamp,
{"Creation Timestamp", "bundle.primary.creation_timestamp",
FT_UINT64, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_lifetime,
{"Lifetime", "bundle.primary.lifetime",
FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_lifetime_sdnv,
{"Lifetime", "bundle.primary.lifetime",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_payload_length,
{"Payload Length", "bundle.payload.length",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_payload_flags,
{"Payload Header Processing Flags", "bundle.payload.proc.flag",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_payload_header_type,
{"Header Type", "bundle.payload.proc.header_type",
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_payload_data,
{"Payload Data", "bundle.payload.data",
FT_STRINGZPAD, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_payload_flags_replicate_hdr,
{"Replicate Header in Every Fragment", "bundle.payload.proc.replicate",
FT_BOOLEAN, 8, NULL, PAYLOAD_PROCFLAGS_REPLICATE_MASK, NULL, HFILL}
},
{&hf_bundle_payload_flags_xmit_report,
{"Report if Can't Process Header", "bundle.payload.proc.report",
FT_BOOLEAN, 8, NULL, PAYLOAD_PROCFLAGS_XMIT_STATUS, NULL, HFILL}
},
{&hf_bundle_payload_flags_discard_on_fail,
{"Discard if Can't Process Header", "bundle.payload.proc.discard",
FT_BOOLEAN, 8, NULL, PAYLOAD_PROCFLAGS_DISCARD_FAILURE, NULL, HFILL}
},
{&hf_bundle_payload_flags_last_header,
{"Last Header", "bundle.payload.proc.lastheader",
FT_BOOLEAN, 8, NULL, PAYLOAD_PROCFLAGS_LAST_HEADER, NULL, HFILL}
},
{&hf_bundle_admin_record_type,
{"Administrative Record Type", "bundle.admin.record_type",
FT_UINT8, BASE_DEC, VALS(admin_record_type_vals), 0xF0, NULL, HFILL}
},
{&hf_bundle_admin_record_fragment,
{"Administrative Record for Fragment", "bundle.admin.record_fragment",
FT_BOOLEAN, 8, TFS(&tfs_yes_no), ADMIN_REC_FLAGS_FRAGMENT, NULL, HFILL}
},
{&hf_bundle_admin_statflags,
{"Administrative Record Status Flags", "bundle.admin.status.flag",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_rcvd,
{"Reporting Node Received Bundle", "bundle.admin.status.rcvd",
FT_BOOLEAN, 8, NULL, ADMIN_STATUS_FLAGS_RECEIVED, NULL, HFILL}
},
{&hf_bundle_admin_accepted,
{"Reporting Node Accepted Custody", "bundle.admin.status.accept",
FT_BOOLEAN, 8, NULL, ADMIN_STATUS_FLAGS_ACCEPTED, NULL, HFILL}
},
{&hf_bundle_admin_forwarded,
{"Reporting Node Forwarded Bundle", "bundle.admin.status.forward",
FT_BOOLEAN, 8, NULL, ADMIN_STATUS_FLAGS_FORWARDED, NULL, HFILL}
},
{&hf_bundle_admin_delivered,
{"Reporting Node Delivered Bundle", "bundle.admin.status.delivered",
FT_BOOLEAN, 8, NULL, ADMIN_STATUS_FLAGS_DELIVERED, NULL, HFILL}
},
{&hf_bundle_admin_deleted,
{"Reporting Node Deleted Bundle", "bundle.admin.status.delete",
FT_BOOLEAN, 8, NULL, ADMIN_STATUS_FLAGS_DELETED, NULL, HFILL}
},
{&hf_bundle_admin_acked,
{"Acknowledged by Application", "bundle.admin.status.ack",
FT_BOOLEAN, 8, NULL, ADMIN_STATUS_FLAGS_ACKNOWLEDGED, NULL, HFILL}
},
{&hf_bundle_admin_fragment_offset,
{"Fragment Offset", "bundle.admin.fragment_offset",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_fragment_length,
{"Fragment Length", "bundle.admin.fragment_length",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_timestamp_seq_num64,
{"Timestamp Sequence Number", "bundle.admin.timestamp_seq_num",
FT_INT64, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_timestamp_seq_num32,
{"Timestamp Sequence Number", "bundle.admin.timestamp_seq_num",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_endpoint_length,
{"Endpoint Length", "bundle.admin.endpoint_length",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_endpoint_id,
{"Bundle Endpoint ID", "bundle.admin.endpoint_id",
FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_receipt_time,
{"Bundle Received Time", "bundle.admin.status.receipttime",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_accept_time,
{"Bundle Accepted Time", "bundle.admin.status.accepttime",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_forward_time,
{"Bundle Forwarded Time", "bundle.admin.status.forwardtime",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_delivery_time,
{"Bundle Delivered Time", "bundle.admin.status.deliverytime",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_delete_time,
{"Bundle Deleted Time", "bundle.admin.status.deletetime",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_ack_time,
{"Bundle Acknowledged Time", "bundle.admin.status.acktime",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_timestamp_copy,
{"Bundle Creation Timestamp", "bundle.admin.status.timecopy",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_admin_signal_time,
{"Bundle Signal Time", "bundle.admin.signal.time",
FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL, NULL, 0x0, NULL, HFILL}
},
{&hf_block_control_flags,
{"Block Processing Control Flags", "bundle.block.control.flags",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_block_control_flags_sdnv,
{"Block Processing Control Flags", "bundle.block.control.flags",
FT_UINT32, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_block_control_block_length,
{"Block Length", "bundle.block.length",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_block_control_block_cteb_custody_id,
{"CTEB Custody ID", "bundle.block.cteb_custody_id",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_block_control_block_cteb_creator_custodian_eid,
{"CTEB Creator Custodian EID", "bundle.block.cteb_creator_custodian_eid",
FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_block_control_replicate,
{"Replicate Block in Every Fragment", "bundle.block.control.replicate",
FT_BOOLEAN, 8, NULL, BLOCK_CONTROL_REPLICATE, NULL, HFILL}
},
{&hf_block_control_transmit_status,
{"Transmit Status if Block Can't be Processeed", "bundle.block.control.status",
FT_BOOLEAN, 8, NULL, BLOCK_CONTROL_TRANSMIT_STATUS, NULL, HFILL}
},
{&hf_block_control_delete_bundle,
{"Delete Bundle if Block Can't be Processeed", "bundle.block.control.delete",
FT_BOOLEAN, 8, NULL, BLOCK_CONTROL_DELETE_BUNDLE, NULL, HFILL}
},
{&hf_block_control_last_block,
{"Last Block", "bundle.block.control.last",
FT_BOOLEAN, 8, NULL, BLOCK_CONTROL_LAST_BLOCK, NULL, HFILL}
},
{&hf_block_control_discard_block,
{"Discard Block If Can't Process", "bundle.block.control.discard",
FT_BOOLEAN, 8, NULL, BLOCK_CONTROL_DISCARD_BLOCK, NULL, HFILL}
},
{&hf_block_control_not_processed,
{"Block Was Forwarded Without Processing", "bundle.block.control.process",
FT_BOOLEAN, 8, NULL, BLOCK_CONTROL_NOT_PROCESSED, NULL, HFILL}
},
{&hf_block_control_eid_reference,
{"Block Contains an EID-reference Field", "bundle.block.control.eid",
FT_BOOLEAN, 8, NULL, BLOCK_CONTROL_EID_REFERENCE, NULL, HFILL}
},
{&hf_bundle_status_report_reason_code,
{"Status Report Reason Code", "bundle.status_report_reason_code",
FT_UINT8, BASE_DEC, VALS(status_report_reason_codes), 0x0, NULL, HFILL}
},
{&hf_bundle_custody_trf_succ_flg,
{"Custody Transfer Succeeded Flag", "bundle.custody_trf_succ_flg",
FT_BOOLEAN, 8, NULL, 0x80, NULL, HFILL}
},
{&hf_bundle_custody_signal_reason,
{"Custody Signal Reason Code", "bundle.custody_signal_reason_code",
FT_UINT8, BASE_DEC, VALS(custody_signal_reason_codes), ADMIN_REC_CUSTODY_REASON_MASK, NULL, HFILL}
},
{&hf_bundle_custody_id_range_start,
{"CTEB Custody ID Range Start", "bundle.custody_id_range_start",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_custody_id_range_end,
{"CTEB Custody ID Range End", "bundle.custody_id_range_end",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_bundle_block_type_code,
{"Block Type Code", "bundle.block_type_code",
FT_UINT8, BASE_DEC, VALS(bundle_block_type_codes), 0x0, NULL, HFILL}
},
{&hf_bundle_unprocessed_block_data,
{"Block Data", "bundle.block_data",
FT_STRINGZPAD, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_ecos_flags,
{"ECOS Flags", "bundle.block.ecos.flags",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_ecos_flags_critical,
{"Critical", "bundle.block.ecos.flags.critical",
FT_BOOLEAN, 8, NULL, ECOS_FLAGS_CRITICAL, NULL, HFILL}
},
{&hf_ecos_flags_streaming,
{"Streaming", "bundle.block.ecos.flags.streaming",
FT_BOOLEAN, 8, NULL, ECOS_FLAGS_STREAMING, NULL, HFILL}
},
{&hf_ecos_flags_flowlabel,
{"Flow Label", "bundle.block.ecos.flags.flowlabel",
FT_BOOLEAN, 8, NULL, ECOS_FLAGS_FLOWLABEL, NULL, HFILL}
},
{&hf_ecos_flags_reliable,
{"Reliable", "bundle.block.ecos.flags.reliable",
FT_BOOLEAN, 8, NULL, ECOS_FLAGS_RELIABLE, NULL, HFILL}
},
{&hf_ecos_flow_label,
{"ECOS Flow Label", "bundle.block.ecos.flow_label",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_ecos_ordinal,
{"ECOS Ordinal", "bundle.block.ecos.ordinal",
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
};
static hf_register_info hf_tcpcl[] = {
{&hf_tcp_convergence_pkt_type,
{"Pkt Type", "tcpcl.pkt_type",
FT_UINT8, BASE_DEC, VALS(packet_type_vals), 0xF0, NULL, HFILL}
},
{&hf_tcp_convergence_data_procflags,
{"TCP Convergence Data Flags", "tcpcl.data.proc.flag",
FT_UINT8, BASE_HEX, NULL, TCP_CONVERGENCE_DATA_FLAGS, NULL, HFILL}
},
{&hf_tcp_convergence_data_procflags_start,
{"Segment contains start of bundle", "tcpcl.data.proc.start",
FT_BOOLEAN, 8, NULL, TCP_CONVERGENCE_DATA_START_FLAG, NULL, HFILL}
},
{&hf_tcp_convergence_data_procflags_end,
{"Segment contains end of Bundle", "tcpcl.data.proc.end",
FT_BOOLEAN, 8, NULL, TCP_CONVERGENCE_DATA_END_FLAG, NULL, HFILL}
},
{&hf_tcp_convergence_data_segment_length,
{"Segment Length", "tcpcl.data.length",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_tcp_convergence_shutdown_flags,
{"TCP Convergence Shutdown Flags", "tcpcl.shutdown.flags",
FT_UINT8, BASE_HEX, NULL, TCP_CONVERGENCE_SHUTDOWN_FLAGS, NULL, HFILL}
},
{&hf_tcp_convergence_shutdown_flags_reason,
{"Shutdown includes Reason Code", "tcpcl.shutdown.reason.flag",
FT_BOOLEAN, 8, NULL, TCP_CONVERGENCE_SHUTDOWN_REASON, NULL, HFILL}
},
{&hf_tcp_convergence_shutdown_flags_delay,
{"Shutdown includes Reconnection Delay", "tcpcl.shutdown.delay.flag",
FT_BOOLEAN, 8, NULL, TCP_CONVERGENCE_SHUTDOWN_DELAY, NULL, HFILL}
},
{&hf_tcp_convergence_shutdown_reason,
{"Shutdown Reason Code", "tcpcl.shutdown.reason",
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_tcp_convergence_shutdown_delay,
{"Shutdown Reconnection Delay", "tcpcl.shutdown.delay",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_tcp_convergence_ack_length,
{"Ack Length", "tcpcl.ack.length",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_contact_hdr_version,
{"Version", "tcpcl.contact_hdr.version",
FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_contact_hdr_flags,
{"Flags", "tcpcl.contact_hdr.flags",
FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL}
},
{&hf_contact_hdr_flags_ack_req,
{"Bundle Acks Requested", "tcpcl.contact_hdr.flags.ackreq",
FT_BOOLEAN, 8, NULL, TCP_CONV_BUNDLE_ACK_FLAG, NULL, HFILL}
},
{&hf_contact_hdr_flags_frag_enable,
{"Reactive Fragmentation Enabled", "tcpcl.contact_hdr.flags.fragen",
FT_BOOLEAN, 8, NULL, TCP_CONV_REACTIVE_FRAG_FLAG, NULL, HFILL}
},
{&hf_contact_hdr_flags_nak,
{"Support Negative Acknowledgements", "tcpcl.contact_hdr.flags.nak",
FT_BOOLEAN, 8, NULL, TCP_CONV_CONNECTOR_RCVR_FLAG, NULL, HFILL}
},
{&hf_contact_hdr_keep_alive,
{"Keep Alive", "tcpcl.contact_hdr.keep_alive",
FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
{&hf_contact_hdr_magic,
{"Magic", "tcpcl.contact_hdr.magic",
FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_contact_hdr_local_eid,
{"Local EID", "tcpcl.contact_hdr.local_eid",
FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL}
},
{&hf_contact_hdr_local_eid_length,
{"Local EID Length", "tcpcl.contact_hdr.local_eid_length",
FT_INT32, BASE_DEC, NULL, 0x0, NULL, HFILL}
},
};
static gint *ett[] = {
&ett_bundle,
&ett_bundle_hdr,
&ett_primary_hdr,
&ett_proc_flags,
&ett_gen_flags,
&ett_cos_flags,
&ett_srr_flags,
&ett_dictionary,
&ett_payload_hdr,
&ett_payload_flags,
&ett_block_flags,
&ett_contact_hdr_flags,
&ett_conv_flags,
&ett_shutdown_flags,
&ett_admin_record,
&ett_admin_rec_status,
&ett_metadata_hdr
};
static gint *ett_tcpcl[] = {
&ett_tcp_conv,
&ett_tcp_conv_hdr,
&ett_msg_fragment,
&ett_msg_fragments,
};
static ei_register_info ei[] = {
{ &ei_bundle_control_flags_length,
{ "bundle.block.control.flags.length", PI_UNDECODED, PI_WARN, "Wrong bundle control flag length", EXPFILL }
},
{ &ei_bundle_payload_length,
{ "bundle.payload.length.invalid", PI_PROTOCOL, PI_ERROR, "Payload length error", EXPFILL }
},
{ &ei_bundle_sdnv_length,
{ "bundle.sdnv_length_invalid", PI_PROTOCOL, PI_ERROR, "SDNV length error", EXPFILL }
},
{ &ei_bundle_timestamp_seq_num,
{ "bundle.timestamp_seq_num_invalid", PI_PROTOCOL, PI_ERROR, "Timestamp Sequence Number error", EXPFILL }
},
{ &ei_bundle_offset_error,
{ "bundle.offset_error", PI_PROTOCOL, PI_WARN, "Offset field error", EXPFILL }
},
{ &ei_bundle_block_control_flags,
{ "bundle.block.control.flags.error", PI_PROTOCOL, PI_WARN, "Control flag error", EXPFILL }
},
{ &ei_block_control_block_cteb_invalid,
{ "bundle.block.control.cteb_invalid", PI_PROTOCOL, PI_WARN, "CTEB Is Invalid", EXPFILL }
},
{ &ei_block_control_block_cteb_valid,
{ "bundle.block.control.cteb_valid", PI_PROTOCOL, PI_NOTE, "CTEB Is Valid", EXPFILL }
},
};
static ei_register_info ei_tcpcl[] = {
{ &ei_tcp_convergence_data_flags,
{ "tcpcl.data.flags.invalid", PI_PROTOCOL, PI_WARN, "Invalid TCP CL Data Segment Flags", EXPFILL }
},
{ &ei_tcp_convergence_segment_length,
{ "tcpcl.data.length.invalid", PI_PROTOCOL, PI_ERROR, "Invalid Data Length", EXPFILL }
},
{ &ei_tcp_convergence_ack_length,
{ "tcpcl.ack.length.error", PI_PROTOCOL, PI_WARN, "Ack Length: Error", EXPFILL }
},
};
module_t *bundle_module;
expert_module_t *expert_bundle, *expert_tcpcl;
proto_bundle = proto_register_protocol("Bundle Protocol", "Bundle", "bundle");
bundle_handle = register_dissector("bundle", dissect_bundle, proto_bundle);
bundle_module = prefs_register_protocol(proto_bundle, proto_reg_handoff_bundle);
proto_tcp_conv = proto_register_protocol ("DTN TCP Convergence Layer Protocol", "TCPCL", "tcpcl");
prefs_register_uint_preference(bundle_module, "udp.port",
"Bundle Protocol UDP Port",
"UDP Port to Accept Bundle Protocol Connections",
10,
&bundle_udp_port);
proto_register_field_array(proto_bundle, hf, array_length(hf));
proto_register_subtree_array(ett, array_length(ett));
expert_bundle = expert_register_protocol(proto_bundle);
expert_register_field_array(expert_bundle, ei, array_length(ei));
proto_register_field_array(proto_tcp_conv, hf_tcpcl, array_length(hf_tcpcl));
proto_register_subtree_array(ett_tcpcl, array_length(ett_tcpcl));
expert_tcpcl = expert_register_protocol(proto_tcp_conv);
expert_register_field_array(expert_tcpcl, ei_tcpcl, array_length(ei_tcpcl));
register_init_routine(bundle_defragment_init);
register_cleanup_routine(bundle_defragment_cleanup);
}
void
proto_reg_handoff_bundle(void)
{
static dissector_handle_t tcpcl_handle;
static guint udp_port;
static int Initialized = FALSE;
if (!Initialized) {
tcpcl_handle = create_dissector_handle(dissect_tcpcl, proto_bundle);
dissector_add_uint_with_preference("tcp.port", BUNDLE_PORT, tcpcl_handle);
Initialized = TRUE;
}
else {
dissector_delete_uint("udp.port", udp_port, bundle_handle);
}
udp_port = bundle_udp_port;
dissector_add_uint("udp.port", udp_port, bundle_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:
*/
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