1986 lines
68 KiB
C
1986 lines
68 KiB
C
/* packet-cfdp.c
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* Routines for CCSDS File Delivery Protocol (CFDP) dissection
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* Copyright 2013, Juan Antonio Montesinos juan.mondl@gmail.com
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* Slightly updated to allow more in-depth decoding when called
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* with the 'dissect_as_subtree' method and to leverage some
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* of the bitfield display operations: Keith Scott
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* <kscott@mitre.org>.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <stdio.h>
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#include <epan/packet.h>
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#include <epan/expert.h>
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#include "packet-cfdp.h"
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/* The CFDP standard can be found here:
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* http://public.ccsds.org/publications/archive/727x0b4.pdf
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*
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* The Store and Forward Overlay Operations are not included.
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*/
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void proto_register_cfdp(void);
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void proto_reg_handoff_cfdp(void);
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/* Initialize the protocol and registered fields */
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static int proto_cfdp = -1;
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static int hf_cfdp_flags = -1;
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static int hf_cfdp_byte2 = -1;
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static int hf_cfdp_proxy_fault_hdl_overr = -1;
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static int hf_cfdp_proxy_trans_mode = -1;
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static int hf_cfdp_proxy_segment_control_byte = -1;
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static int hf_cfdp_proxy_put_resp = -1;
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static int hf_cfdp_orig_trans_id = -1;
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static int hf_cfdp_remote_stat_rep_req = -1;
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static int hf_cfdp_remote_stat_rep_resp = -1;
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static int hf_cfdp_finish_pdu_flags = -1;
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static int hf_cfdp_remote_suspend_resume_req = -1;
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static int hf_cfdp_remote_suspend_resume_resp = -1;
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static int hf_cfdp_version = -1;
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static int hf_cfdp_pdu_type = -1;
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static int hf_cfdp_direction = -1;
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static int hf_cfdp_trans_mode = -1;
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static int hf_cfdp_crc_flag = -1;
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static int hf_cfdp_res1 = -1;
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static int hf_cfdp_data_length = -1;
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static int hf_cfdp_file_data_pdu = -1;
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static int hf_cfdp_res2 = -1;
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static int hf_cfdp_entid_length = -1;
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static int hf_cfdp_res3 = -1;
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static int hf_cfdp_transeqnum_length = -1;
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static int hf_cfdp_srcid = -1;
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static int hf_cfdp_transeqnum = -1;
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static int hf_cfdp_dstid = -1;
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static int hf_cfdp_file_directive_type = -1;
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static int hf_cfdp_file_data_offset = -1;
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static int hf_cfdp_progress = -1;
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static int hf_cfdp_dir_code_ack = -1;
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static int hf_cfdp_dir_subtype_ack = -1;
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static int hf_cfdp_condition_code = -1;
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static int hf_cfdp_spare_one = -1;
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static int hf_cfdp_spare_one_2 = -1;
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static int hf_cfdp_spare_two = -1;
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static int hf_cfdp_spare_four = -1;
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static int hf_cfdp_spare_five = -1;
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static int hf_cfdp_spare_seven = -1;
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static int hf_cfdp_spare_seven_2 = -1;
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static int hf_cfdp_trans_stat_ack = -1;
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static int hf_cfdp_file_checksum = -1;
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static int hf_cfdp_file_size = -1;
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static int hf_cfdp_end_system_stat = -1;
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static int hf_cfdp_delivery_code = -1;
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static int hf_cfdp_file_stat = -1;
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static int hf_cfdp_segment_control = -1;
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static int hf_cfdp_src_file_name = -1;
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static int hf_cfdp_dst_file_name = -1;
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static int hf_cfdp_first_file_name = -1;
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static int hf_cfdp_second_file_name = -1;
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static int hf_cfdp_nak_st_scope = -1;
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static int hf_cfdp_nak_sp_scope = -1;
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static int hf_cfdp_crc = -1;
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static int hf_cfdp_action_code = -1;
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static int hf_cfdp_status_code_1 = -1;
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static int hf_cfdp_status_code_2 = -1;
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static int hf_cfdp_status_code_3 = -1;
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static int hf_cfdp_status_code_4 = -1;
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static int hf_cfdp_status_code_5 = -1;
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static int hf_cfdp_status_code_6 = -1;
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static int hf_cfdp_status_code_7 = -1;
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static int hf_cfdp_status_code_8 = -1;
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static int hf_cfdp_handler_code = -1;
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static int hf_cfdp_proxy_msg_type = -1;
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static int hf_cfdp_proxy_segment_control = -1;
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static int hf_cfdp_proxy_delivery_code = -1;
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static int hf_cfdp_response_req = -1;
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static int hf_cfdp_directory_name = -1;
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static int hf_cfdp_directory_file_name = -1;
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static int hf_cfdp_listing_resp_code = -1;
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static int hf_cfdp_report_file_name = -1;
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static int hf_cfdp_trans_stat = -1;
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static int hf_cfdp_trans_stat_2 = -1;
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static int hf_cfdp_rep_resp_code = -1;
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static int hf_cfdp_suspension_ind = -1;
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static int hf_cfdp_tlv_len = - 1;
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/* Generated from convert_proto_tree_add_text.pl */
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static int hf_cfdp_filestore_message = -1;
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static int hf_cfdp_entity = -1;
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static int hf_cfdp_message_to_user = -1;
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static int hf_cfdp_flow_label = -1;
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static int hf_cfdp_segment_requests = -1;
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static int hf_cfdp_user_data = -1;
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/* Initialize the subtree pointers */
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static gint ett_cfdp = -1;
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static gint ett_cfdp_header = -1;
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static gint ett_cfdp_flags = -1;
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static gint ett_cfdp_byte2 = -1;
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static gint ett_cfdp_proxy_fault_hdl_overr = -1;
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static gint ett_cfdp_proxy_trans_mode = -1;
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static gint ett_cfdp_proxy_segment_control_byte = -1;
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static gint ett_cfdp_proxy_put_resp = -1;
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static gint ett_cfdp_orig_trans_id = -1;
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static gint ett_cfdp_remote_stat_rep_req = -1;
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static gint ett_cfdp_remote_stat_rep_resp = -1;
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static gint ett_cfdp_file_directive_header = -1;
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static gint ett_cfdp_file_data_header = -1;
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static gint ett_cfdp_finish_pdu_flags = -1;
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static gint ett_cfdp_remote_suspend_resume_req = -1;
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static gint ett_cfdp_remote_suspend_resume_resp = -1;
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static gint ett_cfdp_fault_location = -1;
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static gint ett_cfdp_crc = -1;
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static gint ett_cfdp_filestore_req = -1;
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static gint ett_cfdp_filestore_resp = -1;
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static gint ett_cfdp_msg_to_user = -1;
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static gint ett_cfdp_fault_hdl_overr = -1;
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static gint ett_cfdp_flow_label = -1;
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static gint ett_cfdp_proto = -1;
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static expert_field ei_cfdp_bad_length = EI_INIT;
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static dissector_handle_t cfdp_handle;
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/* Some parameters */
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#define CFDP_HEADER_FIXED_FIELDS_LEN 4
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#define CFDP_APID 2045
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/* Bitmask for the first byte of the Header */
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#define HDR_VERSION_CFDP 0xe0
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#define HDR_TYPE_CFDP 0x10
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#define HDR_DIR 0x08
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#define HDR_TMODE 0x04
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#define HDR_CRCF 0x02
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#define HDR_RES1 0x01
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/* Bitmask for the second byte of the Header */
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#define HDR_RES2 0x80
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#define HDR_LEN_ENT_ID 0x70
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#define HDR_RES3 0x08
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#define HDR_LEN_TSEQ_NUM 0x07
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/* File Directive Codes */
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#define EOF_PDU 4
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#define FINISHED_PDU 5
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#define ACK_PDU 6
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#define METADATA_PDU 7
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#define NAK_PDU 8
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#define PROMPT_PDU 9
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#define KEEP_ALIVE_PDU 12
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/* TLV Types */
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#define FILESTORE_REQ 0
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#define FILESTORE_RESP 1
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#define MSG_TO_USER 2
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#define FAULT_HDL_OVERR 4
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#define FLOW_LABEL 5
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#define FAULT_LOCATION 6
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/* ID for reserved CFDP Messages */
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#define CFDP_MSG_TO_USER 0x63666470
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/* Proxy Operations Message Types */
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#define PROXY_PUT_REQ 0x00
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#define PROXY_MSG_TO_USER 0x01
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#define PROXY_FILESTORE_REQ 0x02
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#define PROXY_FAULT_HDL_OVERR 0x03
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#define PROXY_TRANS_MODE 0x04
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#define PROXY_FLOW_LABEL 0x05
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#define PROXY_SEGMENT_CONTROL 0x06
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#define PROXY_PUT_RESP 0x07
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#define PROXY_FILESTORE_RESP 0x08
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#define PROXY_PUT_CANCEL 0x09
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#define ORIG_TRANS_ID 0x0A
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#define DIRECTORY_LIST_REQ 0x10
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#define DIRECTORY_LIST_RESP 0x11
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#define REMOTE_STAT_REP_REQ 0x20
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#define REMOTE_STAT_REP_RESP 0x21
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#define REMOTE_SUSPEND_REQ 0x30
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#define REMOTE_SUSPEND_RESP 0x31
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#define REMOTE_RESUME_REQ 0x38
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#define REMOTE_RESUME_RESP 0x39
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/* PDU Type */
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static const value_string cfdp_pdu_type[] = {
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{ 0, "File Directive" },
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{ 1, "File Data" },
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{ 0, NULL }
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};
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/* PDU Direction */
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static const value_string cfdp_direction[] = {
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{ 0, "Toward file receiver" },
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{ 1, "Toward file sender" },
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{ 0, NULL }
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};
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/* Transmission mode */
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static const value_string cfdp_trans_mode[] = {
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{ 0, "Acknowledged" },
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{ 1, "Unacknowledged" },
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{ 0, NULL }
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};
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/* CRC */
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static const value_string cfdp_crc_flag[] = {
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{ 0, "CRC not present" },
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{ 1, "CRC present" },
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{ 0, NULL }
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};
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/* File Directive PDU Type */
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static const value_string cfdp_file_directive_type[] = {
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{ 4, "EOF PDU"},
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{ 5, "Finished PDU"},
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{ 6, "ACK PDU"},
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{ 7, "Metadata PDU"},
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{ 8, "NACK PDU"},
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{ 9, "Prompt PDU"},
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{ 12, "Keep Alive PDU"},
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{ 0, NULL}
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};
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/* Condition codes */
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static const value_string cfdp_condition_codes[] = {
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{ 0, "No error"},
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{ 1, "Positive ACK limit reached"},
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{ 2, "Keep alive limit reached"},
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{ 3, "Invalid transmission mode"},
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{ 4, "Filestore rejection"},
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{ 5, "File checksum failure"},
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{ 6, "File size error"},
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{ 7, "NAK limit reached"},
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{ 8, "Inactivity detected"},
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{ 9, "Check limit reached"},
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{ 14, "Suspend.request received"},
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{ 15, "Cancel.request received"},
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{ 0, NULL }
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};
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/* Transaction status */
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static const value_string cfdp_trans_stat_ack[] = {
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{ 0, "Undefined" },
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{ 1, "Active" },
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{ 2, "Terminated" },
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{ 3, "Unrecognized" },
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{ 0, NULL }
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};
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/* End system status */
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static const value_string cfdp_end_system_stat[] = {
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{ 0, "Generated by Waypoint" },
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{ 1, "Generated by End System" },
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{ 0, NULL }
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};
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/* Delivery code */
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static const value_string cfdp_delivery_code[] = {
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{ 0, "Data Complete" },
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{ 1, "Data incomplete" },
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{ 0, NULL }
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};
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/* Filestore operations action code */
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static const value_string cfdp_action_code[] = {
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{ 0, "Create File" },
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{ 1, "Delete File" },
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{ 2, "Rename File" },
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{ 3, "Append File" },
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{ 4, "Replace File" },
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{ 5, "Create Directory" },
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{ 6, "Remove Directory" },
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{ 7, "Deny File (delete if present)" },
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{ 8, "Deny Directory (remove if present)" },
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{ 0, NULL }
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};
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/* Filestore operations status codes */
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static const value_string cfdp_status_code_1[] = {
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{ 0, "Successful" },
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{ 1, "Create not allowed" },
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{ 8, "Not performed" },
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{ 0, NULL }
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};
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static const value_string cfdp_status_code_2[] = {
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{ 0, "Successful" },
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{ 1, "File does not exist" },
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{ 2, "Delete not allowed" },
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{ 8, "Not performed" },
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{ 0, NULL }
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};
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static const value_string cfdp_status_code_3[] = {
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{ 0, "Successful" },
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{ 1, "Old File Name does not exist" },
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{ 2, "New File Name already exists" },
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{ 3, "Rename not allowed" },
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{ 8, "Not performed" },
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{ 0, NULL }
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};
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static const value_string cfdp_status_code_4[] = {
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{ 0, "Successful" },
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{ 1, "File Name 1 does not exist" },
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{ 2, "File Name 2 does not exist" },
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{ 3, "Append not allowed" },
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{ 8, "Not performed" },
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{ 0, NULL }
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};
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static const value_string cfdp_status_code_5[] = {
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{ 0, "Successful" },
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{ 1, "File Name 1 does not exist" },
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{ 2, "File Name 2 does not exist" },
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{ 3, "Replace not allowed" },
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{ 8, "Not performed" },
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{ 0, NULL }
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};
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static const value_string cfdp_status_code_6[] = {
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{ 0, "Successful" },
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{ 1, "Directory cannot be created" },
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{ 8, "Not performed" },
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{ 0, NULL }
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};
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static const value_string cfdp_status_code_7[] = {
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{ 0, "Successful" },
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{ 1, "Directory does not exist" },
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{ 2, "Delete not allowed" },
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{ 8, "Not performed" },
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{ 0, NULL }
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};
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static const value_string cfdp_status_code_8[] = {
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{ 0, "Successful" },
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{ 1, "Delete not allowed" },
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{ 8, "Not performed" },
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{ 0, NULL }
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};
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/* Finished PDU File Status */
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static const value_string cfdp_file_stat[] = {
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{ 0, "Delivery file discarded deliberately" },
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{ 1, "Delivery file discarded due to filestore rejection" },
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{ 2, "Delivery file retained in filestore successfully" },
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{ 3, "Delivery file status unreported" },
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{ 0, NULL }
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};
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/* Segmentation control */
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static const value_string cfdp_segment_control[] = {
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{ 0, "Record boundaries respected" },
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{ 1, "Record boundaries not respected" },
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{ 0, NULL }
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};
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/* Fault handler override Handler code*/
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static const value_string cfdp_handler_codes[] = {
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{ 1, "issue Notice of Cancellation" },
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{ 2, "issue Notice of Suspension" },
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{ 3, "Ignore error" },
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{ 4, "Abandon transaction" },
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{ 0, NULL }
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};
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/* Type of Proxy message */
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static const value_string cfdp_proxy_msg_type[] = {
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{ 0x00, "Proxy Put Request"},
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{ 0x01, "Proxy Message To User"},
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{ 0x02, "Proxy Filestore Request"},
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{ 0x03, "Proxy Fault Handler Override"},
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{ 0x04, "Proxy Transmission Mode"},
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{ 0x05, "Proxy Flow Label"},
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{ 0x06, "Proxy Segmentation Control"},
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{ 0x07, "Proxy Put Response"},
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{ 0x08, "Proxy Filestore Response"},
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{ 0x09, "Proxy Put Cancel"},
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{ 0x0A, "Originating Transaction ID"},
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{ 0x10, "Directory Listing Request"},
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{ 0x11, "Directory Listing Response"},
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{ 0x20, "Remote Status Report Request"},
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{ 0x21, "Remote Status Report Response"},
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{ 0x30, "Remote Suspend Request"},
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{ 0x31, "Remote Suspend Response"},
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{ 0x38, "Remote Resume Request"},
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{ 0x39, "Remote Resume Response"},
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{ 0, NULL }
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};
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static value_string_ext cfdp_proxy_msg_type_ext = VALUE_STRING_EXT_INIT(cfdp_proxy_msg_type);
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/* Prompt PDU Response required */
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static const value_string cfdp_response_req[] = {
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{ 0, "NAK" },
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{ 1, "Keep Alive" },
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{ 0, NULL }
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};
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/* Listing response code */
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static const value_string cfdp_listing_resp_code[] = {
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{ 0, "Successful" },
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{ 1, "Unsuccessful" },
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{ 0, NULL }
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};
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/* Report response code */
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static const value_string cfdp_rep_resp_code[] = {
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{ 0, "Unsuccessful" },
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{ 1, "Successful" },
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{ 0, NULL }
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};
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/* Suspension indication */
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static const value_string cfdp_suspension_ind[] = {
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{ 0, "Not Suspended" },
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{ 1, "Suspended" },
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{ 0, NULL }
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};
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/* File Directive codes */
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static const value_string cfdp_directive_codes[] = {
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{ 0x04, "EOF" },
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{ 0x05, "Finished" },
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{ 0x06, "ACK" },
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{ 0x07, "Metadata" },
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{ 0x08, "NAK" },
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{ 0x09, "Prompt" },
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{ 0x0C, "Keep Alive" },
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{ 0, NULL }
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};
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static int * const cfdp_flags[] = {
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&hf_cfdp_version,
|
|
&hf_cfdp_pdu_type,
|
|
&hf_cfdp_direction,
|
|
&hf_cfdp_trans_mode,
|
|
&hf_cfdp_crc_flag,
|
|
&hf_cfdp_res1,
|
|
NULL
|
|
};
|
|
|
|
static int * const cfdp_byte2[] = {
|
|
&hf_cfdp_res2,
|
|
&hf_cfdp_entid_length,
|
|
&hf_cfdp_res3,
|
|
&hf_cfdp_transeqnum_length,
|
|
NULL
|
|
};
|
|
|
|
static int * const cfdp_proxy_fault_hdl_overr[] = {
|
|
&hf_cfdp_condition_code,
|
|
&hf_cfdp_handler_code,
|
|
NULL
|
|
};
|
|
|
|
static int * const cfdp_proxy_trans_mode [] = {
|
|
&hf_cfdp_spare_seven_2,
|
|
&hf_cfdp_trans_mode,
|
|
NULL
|
|
};
|
|
|
|
static int * const cfdp_proxy_segment_control_byte [] = {
|
|
&hf_cfdp_spare_seven_2,
|
|
&hf_cfdp_proxy_segment_control,
|
|
NULL
|
|
};
|
|
|
|
static int * const cfdp_proxy_put_resp [] = {
|
|
&hf_cfdp_condition_code,
|
|
&hf_cfdp_spare_one,
|
|
&hf_cfdp_condition_code,
|
|
&hf_cfdp_proxy_delivery_code,
|
|
&hf_cfdp_file_stat,
|
|
NULL
|
|
};
|
|
|
|
static int * const cfdp_orig_trans_id[] = {
|
|
&hf_cfdp_res2,
|
|
&hf_cfdp_entid_length,
|
|
&hf_cfdp_res3,
|
|
&hf_cfdp_transeqnum_length,
|
|
NULL
|
|
};
|
|
|
|
static int * const cfdp_remote_stat_rep_req[] = {
|
|
&hf_cfdp_res2,
|
|
&hf_cfdp_entid_length,
|
|
&hf_cfdp_res3,
|
|
&hf_cfdp_transeqnum_length,
|
|
NULL
|
|
};
|
|
|
|
static int * const cfdp_remote_stat_rep_resp[] = {
|
|
&hf_cfdp_trans_stat,
|
|
&hf_cfdp_spare_five,
|
|
&hf_cfdp_rep_resp_code,
|
|
&hf_cfdp_spare_one_2,
|
|
&hf_cfdp_entid_length,
|
|
&hf_cfdp_spare_one,
|
|
&hf_cfdp_transeqnum_length,
|
|
NULL
|
|
};
|
|
|
|
static int * const cfdp_finish_pdu_flags [] = {
|
|
&hf_cfdp_condition_code,
|
|
&hf_cfdp_end_system_stat,
|
|
&hf_cfdp_delivery_code,
|
|
&hf_cfdp_file_stat,
|
|
NULL
|
|
};
|
|
|
|
static int * const cfdp_remote_suspend_resume_req [] = {
|
|
&hf_cfdp_spare_one_2,
|
|
&hf_cfdp_entid_length,
|
|
&hf_cfdp_spare_one,
|
|
&hf_cfdp_transeqnum_length,
|
|
NULL
|
|
};
|
|
|
|
|
|
static int * const cfdp_remote_suspend_resume_resp [] = {
|
|
&hf_cfdp_suspension_ind,
|
|
&hf_cfdp_trans_stat_2,
|
|
&hf_cfdp_spare_five,
|
|
&hf_cfdp_spare_one_2,
|
|
&hf_cfdp_entid_length,
|
|
&hf_cfdp_spare_one,
|
|
&hf_cfdp_transeqnum_length,
|
|
NULL
|
|
};
|
|
|
|
|
|
|
|
/* Dissect the Source Entity ID field */
|
|
static void
|
|
dissect_cfdp_src_entity_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint8 len_ent_id)
|
|
{
|
|
if(len_ent_id > 0 && len_ent_id <= 8){
|
|
proto_tree_add_item(tree, hf_cfdp_srcid, tvb, offset, len_ent_id, ENC_BIG_ENDIAN);
|
|
}
|
|
else{
|
|
proto_tree_add_expert_format(tree, pinfo, &ei_cfdp_bad_length, tvb, offset, 0, "Wrong length for the entity ID");
|
|
}
|
|
}
|
|
|
|
/* Dissect the Destination Entity ID field */
|
|
static void
|
|
dissect_cfdp_dst_entity_id(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint8 len_ent_id)
|
|
{
|
|
if(len_ent_id > 0 && len_ent_id <= 8){
|
|
proto_tree_add_item(tree, hf_cfdp_dstid, tvb, offset, len_ent_id, ENC_BIG_ENDIAN);
|
|
}
|
|
else{
|
|
proto_tree_add_expert_format(tree, pinfo, &ei_cfdp_bad_length, tvb, offset, 0, "Wrong length for the entity ID");
|
|
}
|
|
}
|
|
|
|
/* Dissect the Transaction Sequence Number field */
|
|
static void
|
|
dissect_cfdp_tseq_num(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 offset, guint8 len_tseq_num)
|
|
{
|
|
if(len_tseq_num > 0 && len_tseq_num <= 8){
|
|
proto_tree_add_item(tree, hf_cfdp_transeqnum, tvb, offset, len_tseq_num, ENC_BIG_ENDIAN);
|
|
}
|
|
else{
|
|
proto_tree_add_expert_format(tree, pinfo, &ei_cfdp_bad_length, tvb, offset, 0, "Wrong length for transaction sequence number");
|
|
}
|
|
}
|
|
|
|
/* Dissect the Filestore Request TLV */
|
|
static guint32 dissect_cfdp_filestore_req_tlv(tvbuff_t *tvb, proto_tree *tree, guint32 ext_offset){
|
|
|
|
guint8 tlv_len;
|
|
|
|
guint32 offset = ext_offset;
|
|
|
|
/* Get field length */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
if(tlv_len > 0){
|
|
proto_tree *cfdp_filestore_req_tree;
|
|
guint8 aux_byte;
|
|
|
|
/* Create a TLV subtree */
|
|
cfdp_filestore_req_tree = proto_tree_add_subtree(tree, tvb, offset-2, tlv_len+2,
|
|
ett_cfdp_filestore_req, NULL, "Filestore Request TLV");
|
|
|
|
proto_tree_add_uint(cfdp_filestore_req_tree, hf_cfdp_tlv_len, tvb, offset-1, 1, tlv_len);
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(cfdp_filestore_req_tree, hf_cfdp_action_code, tvb, offset, 1, aux_byte);
|
|
proto_tree_add_uint(cfdp_filestore_req_tree, hf_cfdp_spare_four, tvb, offset, 1, aux_byte);
|
|
offset += 1;
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(cfdp_filestore_req_tree, hf_cfdp_first_file_name, tvb, offset, aux_byte, ENC_ASCII|ENC_NA);
|
|
offset += aux_byte;
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
if(aux_byte > 0){
|
|
proto_tree_add_item(cfdp_filestore_req_tree, hf_cfdp_second_file_name, tvb, offset, aux_byte, ENC_ASCII|ENC_NA);
|
|
offset += aux_byte;
|
|
}
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the Filestore Response TLV */
|
|
static guint32 dissect_cfdp_filestore_resp_tlv(tvbuff_t *tvb, proto_tree *tree, guint32 ext_offset){
|
|
|
|
guint8 tlv_len;
|
|
|
|
guint32 offset = ext_offset;
|
|
|
|
/* Get field length */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
if(tlv_len > 0){
|
|
proto_tree *cfdp_filestore_resp_tree;
|
|
guint8 aux_byte;
|
|
|
|
/* Create a subtree */
|
|
cfdp_filestore_resp_tree = proto_tree_add_subtree(tree, tvb, offset-2, tlv_len+2,
|
|
ett_cfdp_filestore_resp, NULL, "Filestore Response TLV");
|
|
|
|
proto_tree_add_uint(cfdp_filestore_resp_tree, hf_cfdp_tlv_len, tvb, offset-1, 1, tlv_len);
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(cfdp_filestore_resp_tree, hf_cfdp_action_code, tvb, offset, 1, aux_byte);
|
|
switch((aux_byte & 0xF0) >> 4){
|
|
case 0:
|
|
proto_tree_add_uint(cfdp_filestore_resp_tree, hf_cfdp_status_code_1, tvb, offset, 1, aux_byte);
|
|
break;
|
|
case 1:
|
|
proto_tree_add_uint(cfdp_filestore_resp_tree, hf_cfdp_status_code_2, tvb, offset, 1, aux_byte);
|
|
break;
|
|
case 2:
|
|
proto_tree_add_uint(cfdp_filestore_resp_tree, hf_cfdp_status_code_3, tvb, offset, 1, aux_byte);
|
|
break;
|
|
case 3:
|
|
proto_tree_add_uint(cfdp_filestore_resp_tree, hf_cfdp_status_code_4, tvb, offset, 1, aux_byte);
|
|
break;
|
|
case 4:
|
|
proto_tree_add_uint(cfdp_filestore_resp_tree, hf_cfdp_status_code_5, tvb, offset, 1, aux_byte);
|
|
break;
|
|
case 5:
|
|
proto_tree_add_uint(cfdp_filestore_resp_tree, hf_cfdp_status_code_6, tvb, offset, 1, aux_byte);
|
|
break;
|
|
case 6:
|
|
proto_tree_add_uint(cfdp_filestore_resp_tree, hf_cfdp_status_code_7, tvb, offset, 1, aux_byte);
|
|
break;
|
|
case 7: case 8:
|
|
proto_tree_add_uint(cfdp_filestore_resp_tree, hf_cfdp_status_code_8, tvb, offset, 1, aux_byte);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
offset += 1;
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(cfdp_filestore_resp_tree, hf_cfdp_first_file_name, tvb, offset, aux_byte, ENC_ASCII|ENC_NA);
|
|
offset += aux_byte;
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
if(aux_byte > 0){
|
|
proto_tree_add_item(cfdp_filestore_resp_tree, hf_cfdp_second_file_name, tvb, offset, aux_byte, ENC_ASCII|ENC_NA);
|
|
offset += aux_byte;
|
|
}
|
|
|
|
/* Filestore Message */
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
if(aux_byte > 0){
|
|
proto_tree_add_item(cfdp_filestore_resp_tree, hf_cfdp_filestore_message, tvb, offset, tlv_len, ENC_NA);
|
|
offset += aux_byte;
|
|
}
|
|
}
|
|
|
|
return offset+1;
|
|
}
|
|
|
|
/* Dissect the Fault Location TLV */
|
|
static guint32 dissect_cfdp_fault_location_tlv(tvbuff_t *tvb, proto_tree *tree, guint32 ext_offset){
|
|
|
|
guint8 tlv_len;
|
|
|
|
guint32 offset = ext_offset;
|
|
|
|
/* Get field length */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
if(tlv_len > 0){
|
|
proto_tree *cfdp_fault_location_tree;
|
|
|
|
/* Create a subtree */
|
|
cfdp_fault_location_tree = proto_tree_add_subtree(tree, tvb, offset-2, tlv_len+2,
|
|
ett_cfdp_fault_location, NULL, "Fault location TLV");
|
|
|
|
proto_tree_add_uint(cfdp_fault_location_tree, hf_cfdp_tlv_len, tvb, offset-1, 1, tlv_len);
|
|
|
|
proto_tree_add_item(cfdp_fault_location_tree, hf_cfdp_entity, tvb, offset, tlv_len, ENC_NA);
|
|
offset += tlv_len;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the Message to User TLV */
|
|
static guint32 dissect_cfdp_msg_to_user_tlv(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 ext_offset){
|
|
|
|
guint8 aux_byte;
|
|
guint8 tlv_type;
|
|
guint8 tlv_len;
|
|
proto_tree *cfdp_msg_to_user_tree;
|
|
|
|
guint32 offset = ext_offset;
|
|
guint32 msg_to_user_id;
|
|
|
|
guint64 retval;
|
|
|
|
int len_ent_id;
|
|
int len_tseq_num;
|
|
|
|
/* Get tlv len */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
|
|
/* Create a subtree */
|
|
cfdp_msg_to_user_tree = proto_tree_add_subtree(tree, tvb, offset-2, tlv_len+2,
|
|
ett_cfdp_filestore_resp, NULL, "Message To User TLV");
|
|
|
|
proto_tree_add_uint(cfdp_msg_to_user_tree, hf_cfdp_tlv_len, tvb, offset-1, 1, tlv_len);
|
|
|
|
msg_to_user_id = tvb_get_ntohl(tvb, offset);
|
|
/* Proxy operations */
|
|
if(msg_to_user_id == CFDP_MSG_TO_USER){
|
|
offset += 4;
|
|
tlv_type = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(cfdp_msg_to_user_tree, hf_cfdp_proxy_msg_type, tvb, offset, 1, tlv_type);
|
|
offset += 1;
|
|
switch(tlv_type){
|
|
|
|
case PROXY_PUT_REQ:
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
dissect_cfdp_dst_entity_id(tvb, pinfo, cfdp_msg_to_user_tree, offset, tlv_len);
|
|
offset += tlv_len;
|
|
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(cfdp_msg_to_user_tree, hf_cfdp_src_file_name, tvb, offset, tlv_len, ENC_ASCII|ENC_NA);
|
|
offset += tlv_len;
|
|
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(cfdp_msg_to_user_tree, hf_cfdp_dst_file_name, tvb, offset, tlv_len, ENC_ASCII|ENC_NA);
|
|
offset += tlv_len;
|
|
|
|
break;
|
|
|
|
case PROXY_MSG_TO_USER:
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(cfdp_msg_to_user_tree, hf_cfdp_message_to_user, tvb, offset, tlv_len, ENC_NA);
|
|
offset += tlv_len;
|
|
break;
|
|
|
|
case PROXY_FILESTORE_REQ:
|
|
offset = dissect_cfdp_filestore_req_tlv(tvb, cfdp_msg_to_user_tree, offset);
|
|
break;
|
|
|
|
case PROXY_FAULT_HDL_OVERR:
|
|
proto_tree_add_bitmask(cfdp_msg_to_user_tree, tvb, offset,
|
|
hf_cfdp_proxy_fault_hdl_overr,
|
|
ett_cfdp_proxy_fault_hdl_overr,
|
|
cfdp_proxy_fault_hdl_overr,
|
|
ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
break;
|
|
|
|
case PROXY_TRANS_MODE:
|
|
proto_tree_add_bitmask(cfdp_msg_to_user_tree, tvb, offset,
|
|
hf_cfdp_proxy_trans_mode,
|
|
ett_cfdp_proxy_trans_mode,
|
|
cfdp_proxy_trans_mode,
|
|
ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
break;
|
|
|
|
case PROXY_FLOW_LABEL:
|
|
proto_tree_add_item(cfdp_msg_to_user_tree, hf_cfdp_flow_label, tvb, offset, tlv_len, ENC_NA);
|
|
break;
|
|
|
|
case PROXY_SEGMENT_CONTROL:
|
|
proto_tree_add_bitmask(cfdp_msg_to_user_tree, tvb, offset,
|
|
hf_cfdp_proxy_segment_control_byte,
|
|
ett_cfdp_proxy_segment_control_byte,
|
|
cfdp_proxy_segment_control_byte,
|
|
ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
break;
|
|
|
|
case PROXY_PUT_RESP:
|
|
proto_tree_add_bitmask(cfdp_msg_to_user_tree, tvb, offset,
|
|
hf_cfdp_proxy_put_resp,
|
|
ett_cfdp_proxy_put_resp,
|
|
cfdp_proxy_put_resp,
|
|
ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
break;
|
|
|
|
case PROXY_FILESTORE_RESP:
|
|
offset = dissect_cfdp_filestore_req_tlv(tvb, cfdp_msg_to_user_tree, offset);
|
|
break;
|
|
|
|
case PROXY_PUT_CANCEL:
|
|
break;
|
|
|
|
case ORIG_TRANS_ID:
|
|
proto_tree_add_bitmask_ret_uint64(cfdp_msg_to_user_tree, tvb, offset,
|
|
hf_cfdp_orig_trans_id,
|
|
ett_cfdp_orig_trans_id,
|
|
cfdp_orig_trans_id,
|
|
ENC_BIG_ENDIAN,
|
|
&retval);
|
|
offset += 1;
|
|
|
|
len_ent_id = ((retval & HDR_LEN_ENT_ID) >> 4) + 1;
|
|
dissect_cfdp_src_entity_id(tvb, pinfo, cfdp_msg_to_user_tree, offset, len_ent_id);
|
|
offset += len_ent_id;
|
|
|
|
len_tseq_num = (retval & HDR_LEN_TSEQ_NUM) +1;
|
|
dissect_cfdp_tseq_num(tvb, pinfo, cfdp_msg_to_user_tree, offset, len_tseq_num);
|
|
offset += len_tseq_num;
|
|
|
|
break;
|
|
|
|
case DIRECTORY_LIST_REQ:
|
|
/* Directory Name */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(cfdp_msg_to_user_tree, hf_cfdp_directory_name, tvb, offset, tlv_len, ENC_ASCII|ENC_NA);
|
|
offset += tlv_len;
|
|
/* Directory File Name */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(cfdp_msg_to_user_tree, hf_cfdp_directory_file_name, tvb, offset, tlv_len, ENC_ASCII|ENC_NA);
|
|
offset += tlv_len;
|
|
break;
|
|
|
|
case DIRECTORY_LIST_RESP:
|
|
/* Listing Response Code */
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(cfdp_msg_to_user_tree, hf_cfdp_listing_resp_code, tvb, offset, 1, aux_byte);
|
|
offset += 1;
|
|
/* Directory Name */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(cfdp_msg_to_user_tree, hf_cfdp_directory_name, tvb, offset, tlv_len, ENC_ASCII|ENC_NA);
|
|
offset += tlv_len;
|
|
/* Directory File Name */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(cfdp_msg_to_user_tree, hf_cfdp_directory_file_name, tvb, offset, tlv_len, ENC_ASCII|ENC_NA);
|
|
offset += tlv_len;
|
|
break;
|
|
|
|
case REMOTE_STAT_REP_REQ:
|
|
proto_tree_add_bitmask_ret_uint64(cfdp_msg_to_user_tree, tvb, offset,
|
|
hf_cfdp_remote_stat_rep_req,
|
|
ett_cfdp_remote_stat_rep_req,
|
|
cfdp_remote_stat_rep_req,
|
|
ENC_BIG_ENDIAN,
|
|
&retval);
|
|
offset += 1;
|
|
|
|
len_ent_id = ((retval & HDR_LEN_ENT_ID) >> 4) + 1;
|
|
dissect_cfdp_src_entity_id(tvb, pinfo, cfdp_msg_to_user_tree, offset, len_ent_id);
|
|
offset += len_ent_id;
|
|
|
|
len_tseq_num = (retval & HDR_LEN_TSEQ_NUM) +1;
|
|
dissect_cfdp_tseq_num(tvb, pinfo, cfdp_msg_to_user_tree, offset, len_tseq_num);
|
|
offset += len_tseq_num;
|
|
|
|
/* Report File Name */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
proto_tree_add_item(cfdp_msg_to_user_tree, hf_cfdp_report_file_name, tvb, offset, tlv_len, ENC_ASCII|ENC_NA);
|
|
offset += tlv_len;
|
|
break;
|
|
|
|
case REMOTE_STAT_REP_RESP:
|
|
proto_tree_add_bitmask_ret_uint64(cfdp_msg_to_user_tree, tvb, offset,
|
|
hf_cfdp_remote_stat_rep_resp,
|
|
ett_cfdp_remote_stat_rep_resp,
|
|
cfdp_remote_stat_rep_resp,
|
|
ENC_BIG_ENDIAN,
|
|
&retval);
|
|
|
|
len_ent_id = ((retval & (HDR_LEN_ENT_ID<<8)) >> 12) + 1;
|
|
dissect_cfdp_src_entity_id(tvb, pinfo, cfdp_msg_to_user_tree, offset, len_ent_id);
|
|
offset += len_ent_id;
|
|
|
|
len_tseq_num = (retval & HDR_LEN_TSEQ_NUM) +1;
|
|
dissect_cfdp_tseq_num(tvb, pinfo, cfdp_msg_to_user_tree, offset, len_tseq_num);
|
|
offset += len_tseq_num;
|
|
break;
|
|
|
|
case REMOTE_SUSPEND_REQ:
|
|
case REMOTE_RESUME_REQ:
|
|
proto_tree_add_bitmask_ret_uint64(cfdp_msg_to_user_tree, tvb, offset,
|
|
hf_cfdp_remote_suspend_resume_req,
|
|
ett_cfdp_remote_suspend_resume_req,
|
|
cfdp_remote_suspend_resume_req,
|
|
ENC_BIG_ENDIAN,
|
|
&retval);
|
|
|
|
offset += 1;
|
|
|
|
len_ent_id = ((retval & HDR_LEN_ENT_ID) >> 4) + 1;
|
|
dissect_cfdp_src_entity_id(tvb, pinfo, cfdp_msg_to_user_tree, offset, len_ent_id);
|
|
offset += len_ent_id;
|
|
|
|
len_tseq_num = (retval & HDR_LEN_TSEQ_NUM) +1;
|
|
dissect_cfdp_tseq_num(tvb, pinfo, cfdp_msg_to_user_tree, offset, len_tseq_num);
|
|
offset += len_tseq_num;
|
|
break;
|
|
|
|
case REMOTE_SUSPEND_RESP:
|
|
case REMOTE_RESUME_RESP:
|
|
proto_tree_add_bitmask_ret_uint64(cfdp_msg_to_user_tree, tvb, offset,
|
|
hf_cfdp_remote_suspend_resume_resp,
|
|
ett_cfdp_remote_suspend_resume_resp,
|
|
cfdp_remote_suspend_resume_resp,
|
|
ENC_BIG_ENDIAN,
|
|
&retval);
|
|
offset += 2;
|
|
|
|
len_ent_id = ((retval & HDR_LEN_ENT_ID) >> 4) + 1;
|
|
dissect_cfdp_src_entity_id(tvb, pinfo, cfdp_msg_to_user_tree, offset, len_ent_id);
|
|
offset += len_ent_id;
|
|
|
|
len_tseq_num = (retval & HDR_LEN_TSEQ_NUM) +1;
|
|
dissect_cfdp_tseq_num(tvb, pinfo, cfdp_msg_to_user_tree, offset, len_tseq_num);
|
|
offset += len_tseq_num;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}else{
|
|
proto_tree_add_item(cfdp_msg_to_user_tree, hf_cfdp_message_to_user, tvb, offset, tlv_len, ENC_NA);
|
|
offset += tlv_len;
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the Fault Handler Override TLV */
|
|
static guint32 dissect_cfdp_fault_handler_overr_tlv(tvbuff_t *tvb, proto_tree *tree, guint32 ext_offset){
|
|
|
|
guint8 aux_byte, tlv_len;
|
|
proto_tree *cfdp_fault_hdl_overr_tree;
|
|
|
|
guint32 offset = ext_offset;
|
|
|
|
/* Get tlv len */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
|
|
/* Create a subtree */
|
|
cfdp_fault_hdl_overr_tree = proto_tree_add_subtree(tree, tvb, offset-2, tlv_len+2,
|
|
ett_cfdp_fault_hdl_overr, NULL, "Fault Handler Override TLV");
|
|
|
|
proto_tree_add_uint(cfdp_fault_hdl_overr_tree, hf_cfdp_tlv_len, tvb, offset-1, 1, tlv_len);
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(cfdp_fault_hdl_overr_tree, hf_cfdp_condition_code, tvb, offset, 1, aux_byte);
|
|
proto_tree_add_uint(cfdp_fault_hdl_overr_tree, hf_cfdp_handler_code, tvb, offset, 1, aux_byte);
|
|
offset += 1;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the Flow Label TLV */
|
|
static guint32 dissect_cfdp_flow_label_tlv(tvbuff_t *tvb, proto_tree *tree, guint32 ext_offset){
|
|
|
|
guint8 tlv_len;
|
|
proto_tree *cfdp_flow_label_tree;
|
|
|
|
guint32 offset = ext_offset;
|
|
|
|
/* Get tlv len */
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
|
|
/* Create a subtree */
|
|
cfdp_flow_label_tree = proto_tree_add_subtree(tree, tvb, offset-2, tlv_len+2,
|
|
ett_cfdp_flow_label, NULL, "Flow Label TLV");
|
|
|
|
/* It is undefined, so no specific encoding */
|
|
proto_tree_add_item(cfdp_flow_label_tree, hf_cfdp_flow_label, tvb, offset, tlv_len, ENC_NA);
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the End of File PDU */
|
|
static guint32 dissect_cfdp_eof_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 ext_offset, guint ext_packet_len){
|
|
|
|
guint8 aux_byte, tlv_type, tlv_len;
|
|
proto_tree *cfdp_fault_location_tree;
|
|
|
|
guint32 offset = ext_offset;
|
|
guint cfdp_packet_data_length = ext_packet_len;
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_cfdp_condition_code, tvb, offset, 1, aux_byte);
|
|
proto_tree_add_uint(tree, hf_cfdp_spare_four, tvb, offset, 1, aux_byte);
|
|
offset += 1;
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "EOF (%s)", val_to_str_const((aux_byte & 0xF0) >> 4, cfdp_condition_codes, "Reserved Code"));
|
|
|
|
proto_tree_add_checksum(tree, tvb, offset, hf_cfdp_file_checksum, -1, NULL, pinfo, 0, ENC_BIG_ENDIAN, PROTO_CHECKSUM_NO_FLAGS);
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(tree, hf_cfdp_file_size, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
|
|
if(offset < cfdp_packet_data_length){
|
|
tlv_type = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
if(tlv_type == FAULT_LOCATION){
|
|
tlv_len = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
cfdp_fault_location_tree = proto_tree_add_subtree(tree, tvb, offset-2, tlv_len+2,
|
|
ett_cfdp_fault_location, NULL, "Fault location TLV");
|
|
|
|
proto_tree_add_item(cfdp_fault_location_tree, hf_cfdp_entity, tvb, offset, tlv_len, ENC_NA);
|
|
offset += tlv_len;
|
|
}
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the Finished PDU */
|
|
static guint32 dissect_cfdp_finished_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 ext_offset, guint ext_packet_len){
|
|
|
|
guint32 offset = ext_offset;
|
|
guint8 tlv_type;
|
|
guint64 aux_byte;
|
|
|
|
guint cfdp_packet_data_length = offset+ext_packet_len;
|
|
|
|
proto_tree_add_bitmask_ret_uint64(tree, tvb, offset,
|
|
hf_cfdp_finish_pdu_flags,
|
|
ett_cfdp_finish_pdu_flags,
|
|
cfdp_finish_pdu_flags,
|
|
ENC_BIG_ENDIAN,
|
|
&aux_byte);
|
|
offset += 1;
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Finished PDU (%s)", val_to_str_const((aux_byte & 0xF0) >> 4, cfdp_condition_codes, "Reserved Code"));
|
|
|
|
/* Add TLV fields */
|
|
while(offset < cfdp_packet_data_length-1){
|
|
tlv_type = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
switch(tlv_type){
|
|
case 0x00:
|
|
offset += 2;
|
|
break;
|
|
case FILESTORE_RESP:
|
|
offset = dissect_cfdp_filestore_resp_tlv(tvb, tree, offset);
|
|
break;
|
|
|
|
case FAULT_LOCATION:
|
|
offset = dissect_cfdp_fault_location_tlv(tvb, tree, offset);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the ACK PDU */
|
|
static guint32 dissect_cfdp_ack_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 ext_offset){
|
|
|
|
guint8 aux_byte;
|
|
guint32 offset = ext_offset;
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_cfdp_dir_code_ack, tvb, offset, 1, aux_byte);
|
|
proto_tree_add_uint(tree, hf_cfdp_dir_subtype_ack, tvb, offset, 1, aux_byte);
|
|
offset += 1;
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "ACK PDU (%s)", val_to_str_const((aux_byte & 0xF0) >> 4, cfdp_directive_codes, "Unknown PDU"));
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_cfdp_condition_code, tvb, offset, 1, aux_byte);
|
|
proto_tree_add_uint(tree, hf_cfdp_spare_two, tvb, offset, 1, aux_byte);
|
|
proto_tree_add_uint(tree, hf_cfdp_trans_stat_ack, tvb, offset, 1, aux_byte);
|
|
offset += 1;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the Metadata PDU */
|
|
static guint32 dissect_cfdp_metadata_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 ext_offset, guint ext_packet_len){
|
|
|
|
guint8 aux_byte, tlv_type;
|
|
guint cfdp_packet_data_length = ext_packet_len;
|
|
|
|
guint32 offset = ext_offset;
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_cfdp_segment_control, tvb, offset, 1, aux_byte);
|
|
proto_tree_add_uint(tree, hf_cfdp_spare_seven, tvb, offset, 1, aux_byte);
|
|
offset += 1;
|
|
proto_tree_add_item(tree, hf_cfdp_file_size, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
if(aux_byte >0){
|
|
proto_tree_add_item(tree, hf_cfdp_src_file_name, tvb, offset+1, aux_byte, ENC_ASCII|ENC_NA);
|
|
offset += aux_byte+1;
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_item(tree, hf_cfdp_dst_file_name, tvb, offset+1, aux_byte, ENC_ASCII|ENC_NA);
|
|
offset += aux_byte+1;
|
|
}
|
|
/* Add TLV fields */
|
|
while(offset < cfdp_packet_data_length){
|
|
tlv_type = tvb_get_guint8(tvb, offset);
|
|
offset += 1;
|
|
switch(tlv_type){
|
|
case FILESTORE_REQ:
|
|
offset = dissect_cfdp_filestore_req_tlv(tvb, tree, offset);
|
|
break;
|
|
|
|
case MSG_TO_USER:
|
|
offset = dissect_cfdp_msg_to_user_tlv(tvb, pinfo, tree, offset);
|
|
break;
|
|
|
|
case FAULT_HDL_OVERR:
|
|
offset = dissect_cfdp_fault_handler_overr_tlv(tvb, tree, offset);
|
|
break;
|
|
|
|
case FLOW_LABEL:
|
|
offset = dissect_cfdp_flow_label_tlv(tvb, tree, offset);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the NAK PDU */
|
|
static guint32 dissect_cfdp_nak_pdu(tvbuff_t *tvb, proto_tree *tree, guint32 ext_offset, guint ext_packet_len){
|
|
|
|
guint32 offset = ext_offset;
|
|
guint cfdp_packet_data_length = ext_packet_len;
|
|
|
|
proto_tree_add_item(tree, hf_cfdp_nak_st_scope, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
proto_tree_add_item(tree, hf_cfdp_nak_sp_scope, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
proto_tree_add_item(tree, hf_cfdp_segment_requests, tvb, offset, cfdp_packet_data_length-9, ENC_NA);
|
|
offset += cfdp_packet_data_length-9;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the Prompt PDU */
|
|
static guint32 dissect_cfdp_prompt_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, guint32 ext_offset){
|
|
|
|
guint8 aux_byte;
|
|
guint32 offset = ext_offset;
|
|
|
|
aux_byte = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_cfdp_response_req, tvb, offset, 1, aux_byte);
|
|
proto_tree_add_uint(tree, hf_cfdp_spare_seven, tvb, offset, 1, aux_byte);
|
|
offset += 1;
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "Prompt PDU (%s)", val_to_str_const((aux_byte & 0x80) >> 7, cfdp_response_req, "Unknown"));
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Dissect the Keep Alive PDU */
|
|
static guint32 dissect_cfdp_keep_alive_pdu(tvbuff_t *tvb, proto_tree *tree, guint32 ext_offset){
|
|
|
|
guint32 offset = ext_offset;
|
|
|
|
proto_tree_add_item(tree, hf_cfdp_progress, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* Code to actually dissect the packets */
|
|
static int
|
|
dissect_cfdp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
|
|
{
|
|
int offset = 0;
|
|
proto_item *cfdp_packet;
|
|
proto_item *cfdp_tree;
|
|
proto_item *cfdp_header;
|
|
proto_tree *cfdp_header_tree;
|
|
gint cfdp_packet_length;
|
|
gint cfdp_packet_reported_length;
|
|
gint cfdp_packet_header_length;
|
|
gint cfdp_packet_data_length;
|
|
gint length;
|
|
guint8 first_byte;
|
|
guint64 retval;
|
|
gint len_ent_id;
|
|
gint len_tseq_num;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "CFDP");
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
cfdp_packet_reported_length = tvb_reported_length_remaining(tvb, 0);
|
|
cfdp_packet_header_length = (tvb_get_guint8(tvb, 3) & HDR_LEN_TSEQ_NUM) + 1 + 2*(((tvb_get_guint8(tvb, 3) & HDR_LEN_ENT_ID) >>4) +1) + CFDP_HEADER_FIXED_FIELDS_LEN;
|
|
cfdp_packet_length = tvb_get_ntohs(tvb, 1) + cfdp_packet_header_length;
|
|
|
|
/* Min length is size of header plus 2 octets, whereas max length is reported length.
|
|
* If the length field in the CFDP header is outside of these bounds,
|
|
* use the value it violates. Otherwise, use the length field value.
|
|
*/
|
|
if(cfdp_packet_length > cfdp_packet_reported_length)
|
|
length = cfdp_packet_reported_length;
|
|
else if(cfdp_packet_length < cfdp_packet_header_length + 2)
|
|
length = cfdp_packet_header_length + 2;
|
|
else
|
|
length = cfdp_packet_length;
|
|
|
|
/* Build the cfdp tree */
|
|
cfdp_packet = proto_tree_add_item(tree, proto_cfdp, tvb, 0, length, ENC_NA);
|
|
cfdp_tree = proto_item_add_subtree(cfdp_packet, ett_cfdp);
|
|
|
|
cfdp_header_tree = proto_tree_add_subtree(cfdp_tree, tvb, offset, cfdp_packet_header_length,
|
|
ett_cfdp_header, &cfdp_header, "CFDP Header");
|
|
|
|
first_byte = tvb_get_guint8(tvb, offset);
|
|
|
|
/* CRC code is not included in the packet data length */
|
|
cfdp_packet_data_length = tvb_get_ntohs(tvb, 1)-2*((first_byte & HDR_CRCF) >>1);
|
|
|
|
proto_tree_add_bitmask(cfdp_header_tree, tvb, offset,
|
|
hf_cfdp_flags,
|
|
ett_cfdp_flags,
|
|
cfdp_flags,
|
|
ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
|
|
proto_tree_add_item(cfdp_header_tree, hf_cfdp_data_length, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
|
|
proto_tree_add_bitmask_ret_uint64(cfdp_header_tree, tvb, offset,
|
|
hf_cfdp_byte2,
|
|
ett_cfdp_byte2,
|
|
cfdp_byte2,
|
|
ENC_BIG_ENDIAN,
|
|
&retval);
|
|
offset += 1;
|
|
|
|
len_ent_id = ((retval & HDR_LEN_ENT_ID) >> 4) + 1;
|
|
dissect_cfdp_src_entity_id(tvb, pinfo, cfdp_header_tree, offset, len_ent_id);
|
|
offset += len_ent_id;
|
|
|
|
len_tseq_num = (retval & HDR_LEN_TSEQ_NUM) +1;
|
|
dissect_cfdp_tseq_num(tvb, pinfo, cfdp_header_tree, offset, len_tseq_num);
|
|
offset += len_tseq_num;
|
|
|
|
dissect_cfdp_dst_entity_id(tvb, pinfo, cfdp_header_tree, offset, len_ent_id);
|
|
offset += len_ent_id;
|
|
|
|
proto_item_set_end(cfdp_header, tvb, offset);
|
|
|
|
/* Build the File Directive or the File Data tree */
|
|
if(!(first_byte & HDR_TYPE_CFDP))
|
|
{
|
|
proto_item *cfdp_file_directive_header;
|
|
proto_tree *cfdp_file_directive_header_tree;
|
|
guint8 directive_code;
|
|
|
|
cfdp_file_directive_header_tree = proto_tree_add_subtree(cfdp_tree, tvb, offset, cfdp_packet_data_length,
|
|
ett_cfdp_file_directive_header, &cfdp_file_directive_header, "CFDP File Directive");
|
|
|
|
directive_code = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(cfdp_file_directive_header_tree, hf_cfdp_file_directive_type, tvb, offset, 1, directive_code);
|
|
offset += 1;
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "%s PDU", val_to_str(directive_code, cfdp_directive_codes, "Reserved (%d)"));
|
|
|
|
switch(directive_code)
|
|
{
|
|
case EOF_PDU:
|
|
offset = dissect_cfdp_eof_pdu(tvb, pinfo, cfdp_file_directive_header_tree, offset, cfdp_packet_data_length);
|
|
break;
|
|
|
|
case FINISHED_PDU:
|
|
offset = dissect_cfdp_finished_pdu(tvb, pinfo, cfdp_file_directive_header_tree, offset, cfdp_packet_data_length);
|
|
break;
|
|
|
|
case ACK_PDU:
|
|
offset = dissect_cfdp_ack_pdu(tvb, pinfo, cfdp_file_directive_header_tree, offset);
|
|
break;
|
|
|
|
case METADATA_PDU:
|
|
offset = dissect_cfdp_metadata_pdu(tvb, pinfo, cfdp_file_directive_header_tree, offset, cfdp_packet_data_length);
|
|
break;
|
|
|
|
case NAK_PDU:
|
|
offset = dissect_cfdp_nak_pdu(tvb, cfdp_file_directive_header_tree, offset, cfdp_packet_data_length);
|
|
break;
|
|
|
|
case PROMPT_PDU:
|
|
offset = dissect_cfdp_prompt_pdu(tvb, pinfo, cfdp_file_directive_header_tree, offset);
|
|
break;
|
|
|
|
case KEEP_ALIVE_PDU:
|
|
offset = dissect_cfdp_keep_alive_pdu(tvb, cfdp_file_directive_header_tree, offset);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
proto_item_set_end(cfdp_file_directive_header, tvb, offset);
|
|
|
|
}else{
|
|
proto_tree *cfdp_file_data_header_tree;
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "File Data PDU");
|
|
|
|
cfdp_file_data_header_tree = proto_tree_add_subtree(cfdp_tree, tvb, offset, cfdp_packet_data_length,
|
|
ett_cfdp_file_data_header, NULL, "CFDP File Data");
|
|
|
|
proto_tree_add_item(cfdp_file_data_header_tree, hf_cfdp_file_data_offset, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(cfdp_file_data_header_tree, hf_cfdp_user_data, tvb, offset, cfdp_packet_data_length-4, ENC_NA);
|
|
offset += cfdp_packet_data_length-4;
|
|
|
|
}
|
|
if(first_byte & HDR_CRCF){
|
|
proto_item *cfdp_crc;
|
|
proto_tree *cfdp_crc_tree;
|
|
|
|
cfdp_crc_tree = proto_tree_add_subtree(cfdp_tree, tvb, offset, 2, ett_cfdp_crc, &cfdp_crc, "CRC");
|
|
|
|
proto_tree_add_item(cfdp_crc_tree, hf_cfdp_crc, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
|
|
proto_item_set_end(cfdp_crc, tvb, offset);
|
|
}
|
|
/* Give the data dissector any bytes past the CFDP packet length */
|
|
call_data_dissector(tvb_new_subset_remaining(tvb, offset), pinfo, tree);
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
void
|
|
dissect_cfdp_as_subtree(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)
|
|
{
|
|
proto_tree *cfdp_header_tree = NULL;
|
|
proto_tree *cfdp_sub_tree = NULL;
|
|
proto_item *payload_item = NULL;
|
|
proto_tree *cfdp_tree = NULL;
|
|
proto_item *cfdp_header;
|
|
gint cfdp_data_len;
|
|
gint len_ent_id;
|
|
gint len_tseq_num;
|
|
guint64 first_byte;
|
|
guint64 retval;
|
|
|
|
cfdp_tree = proto_tree_add_subtree(tree, tvb, offset, -1, ett_cfdp_proto,
|
|
&payload_item, "Payload Data: CFDP Protocol");
|
|
|
|
cfdp_sub_tree = proto_item_add_subtree(cfdp_tree, ett_cfdp);
|
|
cfdp_header_tree = proto_tree_add_subtree(cfdp_sub_tree, tvb, offset, -1,
|
|
ett_cfdp_header, &cfdp_header, "CFDP Header");
|
|
|
|
proto_tree_add_bitmask_ret_uint64(cfdp_header_tree, tvb, offset,
|
|
hf_cfdp_flags,
|
|
ett_cfdp_flags,
|
|
cfdp_flags,
|
|
ENC_BIG_ENDIAN,
|
|
&first_byte);
|
|
offset += 1;
|
|
|
|
guint cfdp_data_end;
|
|
cfdp_data_len = tvb_get_guint16 (tvb, offset, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(cfdp_header_tree, hf_cfdp_data_length, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
|
|
proto_tree_add_bitmask_ret_uint64(cfdp_header_tree, tvb, offset,
|
|
hf_cfdp_byte2,
|
|
ett_cfdp_byte2,
|
|
cfdp_byte2,
|
|
ENC_BIG_ENDIAN,
|
|
&retval);
|
|
offset += 1;
|
|
|
|
len_ent_id = ((retval & HDR_LEN_ENT_ID) >> 4) + 1;
|
|
dissect_cfdp_src_entity_id(tvb, pinfo, cfdp_header_tree, offset, len_ent_id);
|
|
offset += len_ent_id;
|
|
|
|
len_tseq_num = (retval & HDR_LEN_TSEQ_NUM) +1;
|
|
dissect_cfdp_tseq_num(tvb, pinfo, cfdp_header_tree, offset, len_tseq_num);
|
|
offset += len_tseq_num;
|
|
|
|
dissect_cfdp_dst_entity_id(tvb, pinfo, cfdp_header_tree, offset, len_ent_id);
|
|
offset += len_ent_id;
|
|
|
|
cfdp_data_end = offset+cfdp_data_len;
|
|
|
|
/* Build the File Directive or the File Data tree */
|
|
if(!(first_byte & HDR_TYPE_CFDP))
|
|
{
|
|
proto_item *cfdp_file_directive_header;
|
|
proto_tree *cfdp_file_directive_header_tree;
|
|
guint8 directive_code;
|
|
|
|
cfdp_file_directive_header_tree = proto_tree_add_subtree(cfdp_tree, tvb, offset, cfdp_data_len,
|
|
ett_cfdp_file_directive_header, &cfdp_file_directive_header,
|
|
"CFDP File Directive");
|
|
|
|
directive_code = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(cfdp_file_directive_header_tree, hf_cfdp_file_directive_type, tvb, offset, 1, directive_code);
|
|
offset += 1;
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "%s PDU", val_to_str(directive_code, cfdp_directive_codes, "Reserved (%d)"));
|
|
|
|
switch(directive_code)
|
|
{
|
|
case EOF_PDU:
|
|
offset = dissect_cfdp_eof_pdu(tvb, pinfo, cfdp_file_directive_header_tree, offset, cfdp_data_len);
|
|
break;
|
|
|
|
case FINISHED_PDU:
|
|
offset = dissect_cfdp_finished_pdu(tvb, pinfo, cfdp_file_directive_header_tree, offset, cfdp_data_len);
|
|
break;
|
|
|
|
case ACK_PDU:
|
|
offset = dissect_cfdp_ack_pdu(tvb, pinfo, cfdp_file_directive_header_tree, offset);
|
|
break;
|
|
|
|
case METADATA_PDU:
|
|
offset = dissect_cfdp_metadata_pdu(tvb, pinfo, cfdp_file_directive_header_tree, offset, cfdp_data_len);
|
|
break;
|
|
|
|
case PROMPT_PDU:
|
|
offset = dissect_cfdp_prompt_pdu(tvb, pinfo, cfdp_file_directive_header_tree, offset);
|
|
break;
|
|
|
|
case KEEP_ALIVE_PDU:
|
|
offset = dissect_cfdp_keep_alive_pdu(tvb, cfdp_file_directive_header_tree, offset);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
}else{
|
|
proto_tree *cfdp_file_data_header_tree;
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "File Data PDU");
|
|
|
|
cfdp_file_data_header_tree = proto_tree_add_subtree(cfdp_tree, tvb, offset, cfdp_data_len,
|
|
ett_cfdp_file_data_header, NULL, "CFDP File Data");
|
|
|
|
proto_tree_add_item(cfdp_file_data_header_tree, hf_cfdp_file_data_offset, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
|
|
offset += 4;
|
|
|
|
proto_tree_add_item(cfdp_file_data_header_tree, hf_cfdp_user_data, tvb, offset, cfdp_data_len-4, ENC_NA);
|
|
offset += cfdp_data_len-4;
|
|
|
|
}
|
|
if(first_byte & HDR_CRCF){
|
|
proto_item *cfdp_crc;
|
|
proto_tree *cfdp_crc_tree;
|
|
|
|
cfdp_crc_tree = proto_tree_add_subtree(cfdp_tree, tvb, offset, 2, ett_cfdp_crc, &cfdp_crc, "CRC");
|
|
|
|
proto_tree_add_item(cfdp_crc_tree, hf_cfdp_crc, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
|
|
proto_item_set_end(cfdp_crc, tvb, offset);
|
|
}
|
|
|
|
if ( cfdp_data_end>(guint)offset ) {
|
|
proto_tree_add_string(cfdp_header_tree, hf_cfdp_file_data_pdu, tvb, offset, cfdp_data_len,
|
|
wmem_strdup_printf(pinfo->pool, "<%d bytes>", cfdp_data_len));
|
|
}
|
|
return;
|
|
}
|
|
|
|
void
|
|
proto_register_cfdp(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
|
|
{ &hf_cfdp_flags,
|
|
{ "Flags", "cfdp.flags",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_byte2,
|
|
{ "Byte2", "cfdp.byte2",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_proxy_fault_hdl_overr,
|
|
{ "Proxy Fault HDL Overr", "cfdp.proxy_fault_hdl_overr",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_proxy_trans_mode,
|
|
{ "Proxy Transmission Mode", "cfdp.proxy_trans_mode",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_proxy_segment_control_byte,
|
|
{ "Proxy Segment Control", "cfdp.proxy_segment_control",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_proxy_put_resp,
|
|
{ "Proxy Put Response", "cfdp.proxy_put_response",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_orig_trans_id,
|
|
{ "Originating Transaction ID", "cfdp.orig_trans_id",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_remote_stat_rep_req,
|
|
{ "Remote Status Report Request", "cfdp.remote_status_rep_req",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_remote_stat_rep_resp,
|
|
{ "Remote Status Report Response", "cfdp.remote_status_rep_resp",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_finish_pdu_flags,
|
|
{ "Finish PDU flags", "cfdp.finish_pdu_flags",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_remote_suspend_resume_req,
|
|
{ "Remote Suspend/Resume Request", "cfdp.remote_suspend_resume_req",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_remote_suspend_resume_resp,
|
|
{ "Remote Suspend/Resume Response", "cfdp.remote_suspend_resume_resp",
|
|
FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_version,
|
|
{ "Version", "cfdp.version",
|
|
FT_UINT8, BASE_DEC, NULL, HDR_VERSION_CFDP,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_pdu_type,
|
|
{ "PDU Type", "cfdp.pdu_type",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_pdu_type), HDR_TYPE_CFDP,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_direction,
|
|
{ "Direction", "cfdp.direction",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_direction), HDR_DIR,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_trans_mode,
|
|
{ "Trans. Mode", "cfdp.trans_mode",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_trans_mode), HDR_TMODE,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_crc_flag,
|
|
{ "CRC Flag", "cfdp.crc_flag",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_crc_flag), HDR_CRCF,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_res1,
|
|
{ "Bit reserved 1", "cfdp.res1",
|
|
FT_UINT8, BASE_DEC, NULL, HDR_RES1,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_data_length,
|
|
{ "PDU Data length", "cfdp.data_length",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{&hf_cfdp_file_data_pdu,
|
|
{"CFDP File PDU Data", "cfdp.file_data_pdu",
|
|
FT_STRINGZPAD, BASE_NONE, NULL, 0x0, NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_res2,
|
|
{ "Bit reserved 2", "cfdp.res2",
|
|
FT_UINT8, BASE_DEC, NULL, 0x80,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_entid_length,
|
|
{ "Length of entity IDs", "cfdp.entid_length",
|
|
FT_UINT8, BASE_DEC, NULL, 0x70,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_res3,
|
|
{ "Bit reserved 3", "cfdp.res3",
|
|
FT_UINT8, BASE_DEC, NULL, 0x08,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_transeqnum_length,
|
|
{ "Length of Transaction sequence number", "cfdp.transeqnum_length",
|
|
FT_UINT8, BASE_DEC, NULL, 0x07,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_srcid,
|
|
{ "Source entity ID", "cfdp.srcid",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_transeqnum,
|
|
{ "Transaction sequence number", "cfdp.transeqnum",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_dstid,
|
|
{ "Destination entity ID", "cfdp.dstid",
|
|
FT_UINT64, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_file_directive_type,
|
|
{ "File Directive type", "cfdp.fdtype",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_file_directive_type), 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_file_data_offset,
|
|
{ "Offset", "cfdp.offset",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_progress,
|
|
{ "Progress", "cfdp.progress",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_dir_code_ack,
|
|
{ "PDU acknowledged", "cfdp.dir_code_ack",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_file_directive_type), 0xf0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_dir_subtype_ack,
|
|
{ "Directive subtype code", "cfdp.dir_subtype_ack",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_condition_code,
|
|
{ "Condition Code", "cfdp.condition_code",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_condition_codes), 0xf0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_spare_one,
|
|
{ "Spare", "cfdp.spare_one",
|
|
FT_UINT8, BASE_DEC, NULL, 0x08,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_spare_one_2,
|
|
{ "Spare", "cfdp.spare_one_2",
|
|
FT_UINT8, BASE_DEC, NULL, 0x80,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_spare_two,
|
|
{ "Spare", "cfdp.spare_two",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0c,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_spare_four,
|
|
{ "Spare", "cfdp.spare_four",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_spare_five,
|
|
{ "Spare", "cfdp.spare_five_b",
|
|
FT_UINT16, BASE_DEC, NULL, 0x3E00,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_spare_seven,
|
|
{ "Spare", "cfdp.spare_seven",
|
|
FT_UINT8, BASE_DEC, NULL, 0x7f,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_spare_seven_2,
|
|
{ "Spare", "cfdp.spare_seven_2",
|
|
FT_UINT8, BASE_DEC, NULL, 0xfe,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_trans_stat_ack,
|
|
{ "Transaction status", "cfdp.trans_stat_ack",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_trans_stat_ack), 0x03,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_trans_stat,
|
|
{ "Transaction status B", "cfdp.trans_stat_b",
|
|
FT_UINT16, BASE_DEC, VALS(cfdp_trans_stat_ack), 0xC000,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_trans_stat_2,
|
|
{ "Transaction status", "cfdp.trans_stat_2_b",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_trans_stat_ack), 0x60,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_file_checksum,
|
|
{ "Checksum", "cfdp.checksum",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_file_size,
|
|
{ "File size", "cfdp.file_size",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_end_system_stat,
|
|
{ "End system status", "cfdp.end_system_stat",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_end_system_stat), 0x08,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_delivery_code,
|
|
{ "Delivery code", "cfdp.delivery_code",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_delivery_code), 0x04,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_file_stat,
|
|
{ "File status", "cfdp.file_status",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_file_stat), 0x03,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_segment_control,
|
|
{ "Segmentation control", "cfdp.segment_control",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_segment_control), 0x80,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_tlv_len,
|
|
{ "Length", "cfdp.tlv_length",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_src_file_name,
|
|
{"Source file name", "cfdp.src_file_name", FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_dst_file_name,
|
|
{"Destination file name", "cfdp.dst_file_name", FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_first_file_name,
|
|
{"First file name", "cfdp.first_file_name", FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_second_file_name,
|
|
{"Second file name", "cfdp.second_file_name", FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_nak_st_scope,
|
|
{"Start of scope", "cfdp.nak_st_scope", FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_nak_sp_scope,
|
|
{"End of scope", "cfdp.nak_sp_scope", FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_crc,
|
|
{"CRC", "cfdp.crc", FT_UINT16, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_action_code,
|
|
{"Action code", "cfdp.action_code", FT_UINT8, BASE_DEC, VALS(cfdp_action_code), 0xF0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_status_code_1,
|
|
{"Status code", "cfdp.status_code_1", FT_UINT8, BASE_DEC, VALS(cfdp_status_code_1), 0x0F,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_status_code_2,
|
|
{"Status code", "cfdp.status_code_2", FT_UINT8, BASE_DEC, VALS(cfdp_status_code_2), 0x0F,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_status_code_3,
|
|
{"Status code", "cfdp.status_code_3", FT_UINT8, BASE_DEC, VALS(cfdp_status_code_3), 0x0F,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_status_code_4,
|
|
{"Status code", "cfdp.status_code_4", FT_UINT8, BASE_DEC, VALS(cfdp_status_code_4), 0x0F,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_status_code_5,
|
|
{"Status code", "cfdp.status_code_5", FT_UINT8, BASE_DEC, VALS(cfdp_status_code_5), 0x0F,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_status_code_6,
|
|
{"Status code", "cfdp.status_code_6", FT_UINT8, BASE_DEC, VALS(cfdp_status_code_6), 0x0F,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_status_code_7,
|
|
{"Status code", "cfdp.status_code_7", FT_UINT8, BASE_DEC, VALS(cfdp_status_code_7), 0x0F,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_status_code_8,
|
|
{"Status code", "cfdp.status_code_8", FT_UINT8, BASE_DEC, VALS(cfdp_status_code_8), 0x0F,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_handler_code,
|
|
{ "Handler Code", "cfdp.handler_code",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_handler_codes), 0x0F,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_proxy_msg_type,
|
|
{ "Proxy Message Type", "cfdp.proxy_msg_type",
|
|
FT_UINT8, BASE_DEC | BASE_EXT_STRING, &cfdp_proxy_msg_type_ext, 0x0,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_proxy_segment_control,
|
|
{ "Segmentation control", "cfdp.proxy_segment_control",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_segment_control), 0x01,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_proxy_delivery_code,
|
|
{ "Delivery code", "cfdp.proxy_delivery_code",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_delivery_code), 0x04,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_response_req,
|
|
{ "Response required", "cfdp.response_req",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_response_req), 0x80,
|
|
NULL, HFILL }
|
|
},
|
|
{ &hf_cfdp_directory_name,
|
|
{"Directory Name", "cfdp.directory_name", FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_directory_file_name,
|
|
{"Directory File Name", "cfdp.directory_file_name", FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_listing_resp_code,
|
|
{"Listing Response Code", "cfdp.listing_resp_code",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_listing_resp_code), 0x80,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_report_file_name,
|
|
{"Report File Name", "cfdp.report_file_name", FT_STRING, BASE_NONE, NULL, 0x0,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_rep_resp_code,
|
|
{"Report Response Code", "cfdp.rep_resp_code_b",
|
|
FT_UINT16, BASE_DEC, VALS(cfdp_rep_resp_code), 0x0100,
|
|
NULL, HFILL}
|
|
},
|
|
{ &hf_cfdp_suspension_ind,
|
|
{"Suspension indicator", "cfdp.suspension_ind_b",
|
|
FT_UINT8, BASE_DEC, VALS(cfdp_suspension_ind), 0x80,
|
|
NULL, HFILL}
|
|
},
|
|
|
|
/* Generated from convert_proto_tree_add_text.pl */
|
|
{ &hf_cfdp_filestore_message, { "Filestore Message", "cfdp.filestore_message", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_cfdp_entity, { "Entity", "cfdp.entity", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_cfdp_message_to_user, { "Message to User", "cfdp.message_to_user", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_cfdp_flow_label, { "Flow label", "cfdp.flow_label", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_cfdp_segment_requests, { "Segment requests", "cfdp.segment_requests", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
{ &hf_cfdp_user_data, { "User Data", "cfdp.user_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL }},
|
|
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_cfdp,
|
|
&ett_cfdp_flags,
|
|
&ett_cfdp_byte2,
|
|
&ett_cfdp_proxy_fault_hdl_overr,
|
|
&ett_cfdp_proxy_trans_mode,
|
|
&ett_cfdp_proxy_segment_control_byte,
|
|
&ett_cfdp_proxy_put_resp,
|
|
&ett_cfdp_orig_trans_id,
|
|
&ett_cfdp_remote_suspend_resume_req,
|
|
&ett_cfdp_remote_suspend_resume_resp,
|
|
&ett_cfdp_remote_stat_rep_req,
|
|
&ett_cfdp_remote_stat_rep_resp,
|
|
&ett_cfdp_finish_pdu_flags,
|
|
&ett_cfdp_header,
|
|
&ett_cfdp_file_directive_header,
|
|
&ett_cfdp_file_data_header,
|
|
&ett_cfdp_fault_location,
|
|
&ett_cfdp_crc,
|
|
&ett_cfdp_filestore_req,
|
|
&ett_cfdp_filestore_resp,
|
|
&ett_cfdp_msg_to_user,
|
|
&ett_cfdp_fault_hdl_overr,
|
|
&ett_cfdp_flow_label,
|
|
&ett_cfdp_proto
|
|
};
|
|
|
|
static ei_register_info ei[] = {
|
|
{ &ei_cfdp_bad_length, { "cfdp.bad_length", PI_MALFORMED, PI_ERROR, "Bad length field", EXPFILL }},
|
|
};
|
|
|
|
expert_module_t* expert_cfdp;
|
|
|
|
/* Register the protocol name and description */
|
|
proto_cfdp = proto_register_protocol("CFDP", "CFDP", "cfdp");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_cfdp, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
expert_cfdp = expert_register_protocol(proto_cfdp);
|
|
expert_register_field_array(expert_cfdp, ei, array_length(ei));
|
|
|
|
cfdp_handle = register_dissector("cfdp", dissect_cfdp, proto_cfdp);
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_cfdp(void)
|
|
{
|
|
dissector_add_uint("ccsds.apid", CFDP_APID, cfdp_handle);
|
|
dissector_add_for_decode_as_with_preference("udp.port", cfdp_handle);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - https://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:
|
|
*/
|