forked from osmocom/wireshark
784 lines
20 KiB
C
784 lines
20 KiB
C
/* packet-rx.c
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* Routines for RX packet dissection
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* Copyright 1999, Nathan Neulinger <nneul@umr.edu>
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* Based on routines from tcpdump patches by
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* Ken Hornstein <kenh@cmf.nrl.navy.mil>
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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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* Copied from packet-tftp.c
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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 <epan/packet.h>
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#include "packet-rx.h"
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#include <epan/addr_resolv.h>
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/*
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* See
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*
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* http://web.mit.edu/kolya/afs/rx/rx-spec
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*
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* XXX - is the "Epoch" really a UN*X time? The high-order bit, according
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* to that spec, is a flag bit.
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*/
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void proto_register_rx(void);
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void proto_reg_handoff_rx(void);
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#define UDP_PORT_RX_RANGE "7000-7009,7021"
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static const value_string rx_types[] = {
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{ RX_PACKET_TYPE_DATA, "data" },
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{ RX_PACKET_TYPE_ACK, "ack" },
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{ RX_PACKET_TYPE_BUSY, "busy" },
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{ RX_PACKET_TYPE_ABORT, "abort" },
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{ RX_PACKET_TYPE_ACKALL, "ackall" },
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{ RX_PACKET_TYPE_CHALLENGE, "challenge" },
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{ RX_PACKET_TYPE_RESPONSE, "response" },
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{ RX_PACKET_TYPE_DEBUG, "debug" },
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{ RX_PACKET_TYPE_PARAMS, "params" },
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{ RX_PACKET_TYPE_VERSION, "version" },
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{ 0, NULL },
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};
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static const value_string rx_reason[] = {
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{ RX_ACK_REQUESTED, "Ack Requested" },
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{ RX_ACK_DUPLICATE, "Duplicate Packet" },
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{ RX_ACK_OUT_OF_SEQUENCE, "Out Of Sequence" },
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{ RX_ACK_EXEEDS_WINDOW, "Exceeds Window" },
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{ RX_ACK_NOSPACE, "No Space" },
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{ RX_ACK_PING, "Ping" },
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{ RX_ACK_PING_RESPONSE, "Ping Response" },
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{ RX_ACK_DELAY, "Delay" },
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{ RX_ACK_IDLE, "Idle" },
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{ 0, NULL }
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};
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static const value_string rx_ack_type[] = {
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{ RX_ACK_TYPE_NACK, "NACK" },
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{ RX_ACK_TYPE_ACK, "ACK" },
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{ 0, NULL }
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};
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static int proto_rx = -1;
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static int hf_rx_epoch = -1;
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static int hf_rx_cid = -1;
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static int hf_rx_seq = -1;
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static int hf_rx_serial = -1;
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static int hf_rx_callnumber = -1;
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static int hf_rx_type = -1;
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static int hf_rx_flags = -1;
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static int hf_rx_flags_clientinit = -1;
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static int hf_rx_flags_request_ack = -1;
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static int hf_rx_flags_last_packet = -1;
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static int hf_rx_flags_more_packets = -1;
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static int hf_rx_flags_free_packet = -1;
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static int hf_rx_userstatus = -1;
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static int hf_rx_securityindex = -1;
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static int hf_rx_spare = -1;
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static int hf_rx_serviceid = -1;
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static int hf_rx_bufferspace = -1;
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static int hf_rx_maxskew = -1;
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static int hf_rx_first_packet = -1;
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static int hf_rx_prev_packet = -1;
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static int hf_rx_reason = -1;
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static int hf_rx_numacks = -1;
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static int hf_rx_ack_type = -1;
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static int hf_rx_ack = -1;
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static int hf_rx_challenge = -1;
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static int hf_rx_version = -1;
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static int hf_rx_nonce = -1;
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static int hf_rx_inc_nonce = -1;
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static int hf_rx_min_level = -1;
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static int hf_rx_level = -1;
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static int hf_rx_response = -1;
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static int hf_rx_encrypted = -1;
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static int hf_rx_kvno = -1;
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static int hf_rx_ticket_len = -1;
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static int hf_rx_ticket = -1;
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static int hf_rx_ifmtu = -1;
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static int hf_rx_maxmtu = -1;
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static int hf_rx_rwind = -1;
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static int hf_rx_maxpackets = -1;
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static int hf_rx_abort = -1;
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static int hf_rx_abortcode = -1;
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static gint ett_rx = -1;
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static gint ett_rx_flags = -1;
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static gint ett_rx_ack = -1;
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static gint ett_rx_challenge = -1;
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static gint ett_rx_response = -1;
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static gint ett_rx_encrypted = -1;
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static gint ett_rx_abort = -1;
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static dissector_handle_t afs_handle;
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static int
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dissect_rx_response_encrypted(tvbuff_t *tvb, proto_tree *parent_tree, int offset)
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{
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proto_tree *tree;
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proto_item *item;
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int old_offset=offset;
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int i;
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guint32 callnumber;
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item = proto_tree_add_item(parent_tree, hf_rx_encrypted, tvb, offset, -1, ENC_NA);
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tree = proto_item_add_subtree(item, ett_rx_encrypted);
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/* epoch : 4 bytes */
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proto_tree_add_item(tree, hf_rx_epoch, tvb, offset, 4, ENC_TIME_SECS|ENC_BIG_ENDIAN);
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offset += 4;
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/* cid : 4 bytes */
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proto_tree_add_item(tree, hf_rx_cid, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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/*FIXME don't know how to handle this checksum, skipping it */
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offset += 4;
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/* sequrityindex : 1 byte */
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proto_tree_add_item(tree, hf_rx_securityindex, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 4;
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for (i=0; i<RX_MAXCALLS; i++) {
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/* callnumber : 4 bytes */
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callnumber = tvb_get_ntohl(tvb, offset);
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proto_tree_add_uint(tree, hf_rx_callnumber, tvb,
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offset, 4, callnumber);
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offset += 4;
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}
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/* inc nonce : 4 bytes */
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proto_tree_add_item(tree, hf_rx_inc_nonce, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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/* level : 4 bytes */
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proto_tree_add_item(tree, hf_rx_level, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_item_set_len(item, offset-old_offset);
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return offset;
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}
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static int
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dissect_rx_response(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, int offset, guint32 seq, guint32 callnumber)
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{
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proto_tree *tree;
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proto_item *item;
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guint32 version, tl;
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int old_offset=offset;
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col_add_fstr(pinfo->cinfo, COL_INFO,
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"RESPONSE "
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"Seq: %lu "
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"Call: %lu "
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"Source Port: %s "
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"Destination Port: %s ",
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(unsigned long)seq,
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(unsigned long)callnumber,
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udp_port_to_display(pinfo->pool, pinfo->srcport),
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udp_port_to_display(pinfo->pool, pinfo->destport)
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);
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item = proto_tree_add_item(parent_tree, hf_rx_response, tvb, offset, -1, ENC_NA);
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tree = proto_item_add_subtree(item, ett_rx_response);
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version = tvb_get_ntohl(tvb, offset);
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proto_tree_add_uint(tree, hf_rx_version, tvb,
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offset, 4, version);
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offset += 4;
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if (version==2) {
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/* skip unused */
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offset += 4;
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/* encrypted : struct */
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offset = dissect_rx_response_encrypted(tvb, tree, offset);
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/* kvno */
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proto_tree_add_item(tree, hf_rx_kvno, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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/* ticket_len */
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tl = tvb_get_ntohl(tvb, offset);
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proto_tree_add_uint(tree, hf_rx_ticket_len, tvb,
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offset, 4, tl);
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offset += 4;
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proto_tree_add_item(tree, hf_rx_ticket, tvb, offset, tl, ENC_NA);
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offset += tl;
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}
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proto_item_set_len(item, offset-old_offset);
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return offset;
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}
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static int
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dissect_rx_abort(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, int offset, guint32 seq, guint32 callnumber)
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{
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proto_tree *tree;
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proto_item *item;
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int old_offset=offset;
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col_add_fstr(pinfo->cinfo, COL_INFO,
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"ABORT "
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"Seq: %lu "
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"Call: %lu "
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"Source Port: %s "
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"Destination Port: %s ",
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(unsigned long)seq,
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(unsigned long)callnumber,
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udp_port_to_display(pinfo->pool, pinfo->srcport),
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udp_port_to_display(pinfo->pool, pinfo->destport)
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);
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item = proto_tree_add_item(parent_tree, hf_rx_abort, tvb, offset, -1, ENC_NA);
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tree = proto_item_add_subtree(item, ett_rx_abort);
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/* abort code */
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proto_tree_add_item(tree, hf_rx_abortcode, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_item_set_len(item, offset-old_offset);
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return offset;
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}
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static int
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dissect_rx_challenge(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, int offset, guint32 seq, guint32 callnumber)
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{
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proto_tree *tree;
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proto_item *item;
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guint32 version;
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int old_offset=offset;
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col_add_fstr(pinfo->cinfo, COL_INFO,
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"CHALLENGE "
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"Seq: %lu "
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"Call: %lu "
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"Source Port: %s "
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"Destination Port: %s ",
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(unsigned long)seq,
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(unsigned long)callnumber,
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udp_port_to_display(pinfo->pool, pinfo->srcport),
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udp_port_to_display(pinfo->pool, pinfo->destport)
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);
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item = proto_tree_add_item(parent_tree, hf_rx_challenge, tvb, offset, -1, ENC_NA);
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tree = proto_item_add_subtree(item, ett_rx_challenge);
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version = tvb_get_ntohl(tvb, offset);
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proto_tree_add_uint(tree, hf_rx_version, tvb,
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offset, 4, version);
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offset += 4;
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if (version==2) {
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proto_tree_add_item(tree, hf_rx_nonce, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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proto_tree_add_item(tree, hf_rx_min_level, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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}
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proto_item_set_len(item, offset-old_offset);
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return offset;
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}
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static int
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dissect_rx_acks(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, int offset, guint32 seq, guint32 callnumber)
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{
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proto_tree *tree;
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proto_item *item;
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guint8 num, reason;
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int old_offset = offset;
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item = proto_tree_add_item(parent_tree, hf_rx_ack, tvb, offset, -1, ENC_NA);
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tree = proto_item_add_subtree(item, ett_rx_ack);
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/* bufferspace: 2 bytes*/
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proto_tree_add_item(tree, hf_rx_bufferspace, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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/* maxskew: 2 bytes*/
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proto_tree_add_item(tree, hf_rx_maxskew, tvb, offset, 2, ENC_BIG_ENDIAN);
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offset += 2;
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/* first packet: 4 bytes*/
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proto_tree_add_item(tree, hf_rx_first_packet, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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/* prev packet: 4 bytes*/
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proto_tree_add_item(tree, hf_rx_prev_packet, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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/* serial : 4 bytes */
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proto_tree_add_item(tree, hf_rx_serial, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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/* reason : 1 byte */
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reason = tvb_get_guint8(tvb, offset);
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proto_tree_add_item(tree, hf_rx_reason, tvb, offset, 1, ENC_BIG_ENDIAN);
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offset += 1;
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/* nACKs */
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num = tvb_get_guint8(tvb, offset);
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proto_tree_add_uint(tree, hf_rx_numacks, tvb, offset, 1, num);
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offset += 1;
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while(num--){
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proto_tree_add_item(tree, hf_rx_ack_type, tvb, offset, 1,
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ENC_BIG_ENDIAN);
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offset += 1;
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}
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/* Some implementations add some extra fields.
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* As far as I can see, these first add 3 padding bytes and then
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* up to 4 32-bit values. (0,3,4 have been witnessed)
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*
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* RX as a protocol seems to be completely undefined and seems to lack
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* any sort of documentation other than "read the source of any of the
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* (compatible?) implementations. The OpenAFS source indicates that
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* 3 bytes of padding are written after the acks.
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*/
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if (tvb_reported_length_remaining(tvb, offset)>3) {
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offset += 3; /* guess. some implementations add 3 bytes */
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if (tvb_reported_length_remaining(tvb, offset) >= 4){
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proto_tree_add_item(tree, hf_rx_maxmtu, tvb, offset, 4,
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ENC_BIG_ENDIAN);
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offset += 4;
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}
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if (tvb_reported_length_remaining(tvb, offset) >= 4){
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proto_tree_add_item(tree, hf_rx_ifmtu, tvb, offset, 4,
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ENC_BIG_ENDIAN);
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offset += 4;
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}
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if (tvb_reported_length_remaining(tvb, offset) >= 4){
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proto_tree_add_item(tree, hf_rx_rwind, tvb, offset, 4,
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ENC_BIG_ENDIAN);
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offset += 4;
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}
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if (tvb_reported_length_remaining(tvb, offset) >= 4){
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proto_tree_add_item(tree, hf_rx_maxpackets, tvb, offset, 4,
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ENC_BIG_ENDIAN);
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offset += 4;
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}
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}
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col_add_fstr(pinfo->cinfo, COL_INFO,
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"ACK %s "
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"Seq: %lu "
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"Call: %lu "
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"Source Port: %s "
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"Destination Port: %s ",
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val_to_str(reason, rx_reason, "%d"),
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(unsigned long)seq,
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(unsigned long)callnumber,
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udp_port_to_display(pinfo->pool, pinfo->srcport),
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udp_port_to_display(pinfo->pool, pinfo->destport)
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);
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proto_item_set_len(item, offset-old_offset);
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return offset;
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}
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static int
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dissect_rx_flags(tvbuff_t *tvb, struct rxinfo *rxinfo, proto_tree *parent_tree, int offset)
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{
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static int * const flags[] = {
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&hf_rx_flags_free_packet,
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&hf_rx_flags_more_packets,
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&hf_rx_flags_last_packet,
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&hf_rx_flags_request_ack,
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&hf_rx_flags_clientinit,
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NULL
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};
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rxinfo->flags = tvb_get_guint8(tvb, offset);
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proto_tree_add_bitmask(parent_tree, tvb, offset, hf_rx_flags, ett_rx_flags, flags, ENC_NA);
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offset += 1;
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return offset;
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}
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static int
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dissect_rx(tvbuff_t *tvb, packet_info *pinfo, proto_tree *parent_tree, void *data _U_)
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{
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proto_tree *tree;
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proto_item *item;
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const char *version_type;
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int offset = 0;
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struct rxinfo rxinfo;
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guint8 type;
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nstime_t ts;
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guint32 seq, callnumber;
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guint16 serviceid;
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/* Ensure we have enough data */
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if (tvb_captured_length(tvb) < 28)
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return 0;
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/* Make sure it's a known type */
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type = tvb_get_guint8(tvb, 20);
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if (!try_val_to_str(type, rx_types))
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return 0;
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col_set_str(pinfo->cinfo, COL_PROTOCOL, "RX");
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col_clear(pinfo->cinfo, COL_INFO);
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item = proto_tree_add_protocol_format(parent_tree, proto_rx, tvb,
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offset, 28, "RX Protocol");
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tree = proto_item_add_subtree(item, ett_rx);
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/* epoch : 4 bytes */
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rxinfo.epoch = tvb_get_ntohl(tvb, offset);
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ts.secs = rxinfo.epoch;
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ts.nsecs = 0;
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proto_tree_add_time(tree, hf_rx_epoch, tvb, offset, 4, &ts);
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offset += 4;
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/* cid : 4 bytes */
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rxinfo.cid = tvb_get_ntohl(tvb, offset);
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proto_tree_add_item(tree, hf_rx_cid, tvb, offset, 4, ENC_BIG_ENDIAN);
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offset += 4;
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/* callnumber : 4 bytes */
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callnumber = tvb_get_ntohl(tvb, offset);
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proto_tree_add_uint(tree, hf_rx_callnumber, tvb,
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offset, 4, callnumber);
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offset += 4;
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rxinfo.callnumber = callnumber;
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|
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/* seq : 4 bytes */
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seq = tvb_get_ntohl(tvb, offset);
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proto_tree_add_uint(tree, hf_rx_seq, tvb,
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offset, 4, seq);
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|
offset += 4;
|
|
rxinfo.seq = seq;
|
|
|
|
/* serial : 4 bytes */
|
|
proto_tree_add_item(tree, hf_rx_serial, tvb, offset, 4, ENC_BIG_ENDIAN);
|
|
offset += 4;
|
|
|
|
/* type : 1 byte */
|
|
type = tvb_get_guint8(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_rx_type, tvb,
|
|
offset, 1, type);
|
|
offset += 1;
|
|
rxinfo.type = type;
|
|
|
|
/* flags : 1 byte */
|
|
offset = dissect_rx_flags(tvb, &rxinfo, tree, offset);
|
|
|
|
/* userstatus : 1 byte */
|
|
proto_tree_add_item(tree, hf_rx_userstatus, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
|
|
/* sequrityindex : 1 byte */
|
|
proto_tree_add_item(tree, hf_rx_securityindex, tvb, offset, 1, ENC_BIG_ENDIAN);
|
|
offset += 1;
|
|
|
|
/*
|
|
* How clever: even though the AFS header files indicate that the
|
|
* serviceId is first, it's really encoded _after_ the spare field.
|
|
* I wasted a day figuring that out!
|
|
*/
|
|
|
|
/* spare */
|
|
proto_tree_add_item(tree, hf_rx_spare, tvb, offset, 2, ENC_BIG_ENDIAN);
|
|
offset += 2;
|
|
|
|
/* service id : 2 bytes */
|
|
serviceid = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_uint(tree, hf_rx_serviceid, tvb,
|
|
offset, 2, serviceid);
|
|
offset += 2;
|
|
rxinfo.serviceid = serviceid;
|
|
|
|
switch (type) {
|
|
case RX_PACKET_TYPE_ACK:
|
|
/*dissect_rx_acks(tvb, pinfo, parent_tree, offset,
|
|
can't create it in a parallel tree, then ett search
|
|
won't work */
|
|
dissect_rx_acks(tvb, pinfo, tree, offset,
|
|
seq, callnumber);
|
|
break;
|
|
case RX_PACKET_TYPE_ACKALL:
|
|
/* does not contain any payload */
|
|
col_add_fstr(pinfo->cinfo, COL_INFO,
|
|
"ACKALL "
|
|
"Seq: %lu "
|
|
"Call: %lu "
|
|
"Source Port: %s "
|
|
"Destination Port: %s ",
|
|
(unsigned long)seq,
|
|
(unsigned long)callnumber,
|
|
udp_port_to_display(pinfo->pool, pinfo->srcport),
|
|
udp_port_to_display(pinfo->pool, pinfo->destport)
|
|
);
|
|
break;
|
|
case RX_PACKET_TYPE_VERSION:
|
|
/* does not contain any payload */
|
|
if (rxinfo.cid == 0)
|
|
version_type = "NAT ping";
|
|
else
|
|
version_type = "request";
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO,
|
|
"VERSION %s "
|
|
"Seq: %lu "
|
|
"Call: %lu "
|
|
"Source Port: %s "
|
|
"Destination Port: %s ",
|
|
version_type,
|
|
(unsigned long)seq,
|
|
(unsigned long)callnumber,
|
|
udp_port_to_display(pinfo->pool, pinfo->srcport),
|
|
udp_port_to_display(pinfo->pool, pinfo->destport)
|
|
);
|
|
break;
|
|
case RX_PACKET_TYPE_CHALLENGE:
|
|
dissect_rx_challenge(tvb, pinfo, tree, offset, seq, callnumber);
|
|
break;
|
|
case RX_PACKET_TYPE_RESPONSE:
|
|
dissect_rx_response(tvb, pinfo, tree, offset, seq, callnumber);
|
|
break;
|
|
case RX_PACKET_TYPE_DATA: {
|
|
tvbuff_t *next_tvb;
|
|
|
|
next_tvb = tvb_new_subset_remaining(tvb, offset);
|
|
call_dissector_with_data(afs_handle, next_tvb, pinfo, parent_tree, &rxinfo);
|
|
};
|
|
break;
|
|
case RX_PACKET_TYPE_ABORT:
|
|
dissect_rx_abort(tvb, pinfo, tree, offset, seq, callnumber);
|
|
break;
|
|
}
|
|
|
|
return(tvb_captured_length(tvb));
|
|
}
|
|
|
|
void
|
|
proto_register_rx(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_rx_epoch, {
|
|
"Epoch", "rx.epoch", FT_ABSOLUTE_TIME, ABSOLUTE_TIME_LOCAL,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_cid, {
|
|
"CID", "rx.cid", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_callnumber, {
|
|
"Call Number", "rx.callnumber", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_seq, {
|
|
"Sequence Number", "rx.seq", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_serial, {
|
|
"Serial", "rx.serial", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_type, {
|
|
"Type", "rx.type", FT_UINT8, BASE_DEC,
|
|
VALS(rx_types), 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_flags, {
|
|
"Flags", "rx.flags", FT_UINT8, BASE_HEX,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_flags_clientinit, {
|
|
"Client Initiated", "rx.flags.client_init", FT_BOOLEAN, 8,
|
|
NULL, RX_CLIENT_INITIATED, NULL, HFILL }},
|
|
|
|
{ &hf_rx_flags_request_ack, {
|
|
"Request Ack", "rx.flags.request_ack", FT_BOOLEAN, 8,
|
|
NULL, RX_REQUEST_ACK, NULL, HFILL }},
|
|
|
|
{ &hf_rx_flags_last_packet, {
|
|
"Last Packet", "rx.flags.last_packet", FT_BOOLEAN, 8,
|
|
NULL, RX_LAST_PACKET, NULL, HFILL }},
|
|
|
|
{ &hf_rx_flags_more_packets, {
|
|
"More Packets", "rx.flags.more_packets", FT_BOOLEAN, 8,
|
|
NULL, RX_MORE_PACKETS, NULL, HFILL }},
|
|
|
|
{ &hf_rx_flags_free_packet, {
|
|
"Free Packet", "rx.flags.free_packet", FT_BOOLEAN, 8,
|
|
NULL, RX_FREE_PACKET, NULL, HFILL }},
|
|
|
|
/* XXX - what about RX_SLOW_START_OR_JUMBO? */
|
|
|
|
{ &hf_rx_userstatus, {
|
|
"User Status", "rx.userstatus", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_securityindex, {
|
|
"Security Index", "rx.securityindex", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_spare, {
|
|
"Spare/Checksum", "rx.spare", FT_UINT16, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_serviceid, {
|
|
"Service ID", "rx.serviceid", FT_UINT16, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_bufferspace, {
|
|
"Bufferspace", "rx.bufferspace", FT_UINT16, BASE_DEC,
|
|
NULL, 0, "Number Of Packets Available", HFILL }},
|
|
|
|
{ &hf_rx_maxskew, {
|
|
"Max Skew", "rx.maxskew", FT_UINT16, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_first_packet, {
|
|
"First Packet", "rx.first", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_prev_packet, {
|
|
"Prev Packet", "rx.prev", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Previous Packet", HFILL }},
|
|
|
|
{ &hf_rx_reason, {
|
|
"Reason", "rx.reason", FT_UINT8, BASE_DEC,
|
|
VALS(rx_reason), 0, "Reason For This ACK", HFILL }},
|
|
|
|
{ &hf_rx_numacks, {
|
|
"Num ACKs", "rx.num_acks", FT_UINT8, BASE_DEC,
|
|
NULL, 0, "Number Of ACKs", HFILL }},
|
|
|
|
{ &hf_rx_ack_type, {
|
|
"ACK Type", "rx.ack_type", FT_UINT8, BASE_DEC,
|
|
VALS(rx_ack_type), 0, "Type Of ACKs", HFILL }},
|
|
|
|
{ &hf_rx_ack, {
|
|
"ACK Packet", "rx.ack", FT_NONE, BASE_NONE,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_challenge, {
|
|
"CHALLENGE Packet", "rx.challenge", FT_NONE, BASE_NONE,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_version, {
|
|
"Version", "rx.version", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Version Of Challenge/Response", HFILL }},
|
|
|
|
{ &hf_rx_nonce, {
|
|
"Nonce", "rx.nonce", FT_UINT32, BASE_HEX,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_inc_nonce, {
|
|
"Inc Nonce", "rx.inc_nonce", FT_UINT32, BASE_HEX,
|
|
NULL, 0, "Incremented Nonce", HFILL }},
|
|
|
|
{ &hf_rx_min_level, {
|
|
"Min Level", "rx.min_level", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_level, {
|
|
"Level", "rx.level", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_response, {
|
|
"RESPONSE Packet", "rx.response", FT_NONE, BASE_NONE,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_abort, {
|
|
"ABORT Packet", "rx.abort", FT_NONE, BASE_NONE,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_encrypted, {
|
|
"Encrypted", "rx.encrypted", FT_NONE, BASE_NONE,
|
|
NULL, 0, "Encrypted part of response packet", HFILL }},
|
|
|
|
{ &hf_rx_kvno, {
|
|
"kvno", "rx.kvno", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_ticket_len, {
|
|
"Ticket len", "rx.ticket_len", FT_UINT32, BASE_DEC,
|
|
NULL, 0, "Ticket Length", HFILL }},
|
|
|
|
{ &hf_rx_ticket, {
|
|
"ticket", "rx.ticket", FT_BYTES, BASE_NONE,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_ifmtu, {
|
|
"Interface MTU", "rx.if_mtu", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_maxmtu, {
|
|
"Max MTU", "rx.max_mtu", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_rwind, {
|
|
"rwind", "rx.rwind", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_maxpackets, {
|
|
"Max Packets", "rx.max_packets", FT_UINT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
{ &hf_rx_abortcode, {
|
|
"Abort Code", "rx.abort_code", FT_INT32, BASE_DEC,
|
|
NULL, 0, NULL, HFILL }},
|
|
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_rx,
|
|
&ett_rx_flags,
|
|
&ett_rx_ack,
|
|
&ett_rx_challenge,
|
|
&ett_rx_response,
|
|
&ett_rx_encrypted,
|
|
&ett_rx_abort
|
|
};
|
|
|
|
proto_rx = proto_register_protocol("RX Protocol", "RX", "rx");
|
|
proto_register_field_array(proto_rx, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_rx(void)
|
|
{
|
|
dissector_handle_t rx_handle;
|
|
|
|
/*
|
|
* Get handle for the AFS dissector.
|
|
*/
|
|
afs_handle = find_dissector_add_dependency("afs", proto_rx);
|
|
|
|
rx_handle = create_dissector_handle(dissect_rx, proto_rx);
|
|
dissector_add_uint_range_with_preference("udp.port", UDP_PORT_RX_RANGE, rx_handle);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - https://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* tab-width: 8
|
|
* indent-tabs-mode: t
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
|
|
* :indentSize=8:tabSize=8:noTabs=yes:
|
|
*/
|