forked from the-tcpdump-group/tcpdump
/
print-rsvp.c
2058 lines (1893 loc) · 80.2 KB
/
print-rsvp.c
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/*
* Copyright (c) 1998-2007 The TCPDUMP project
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that: (1) source code
* distributions retain the above copyright notice and this paragraph
* in its entirety, and (2) distributions including binary code include
* the above copyright notice and this paragraph in its entirety in
* the documentation or other materials provided with the distribution.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND
* WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE.
*
* Original code by Hannes Gredler (hannes@gredler.at)
*/
/* \summary: Resource ReSerVation Protocol (RSVP) printer */
/* specification: RFC 2205 */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "netdissect-stdinc.h"
#include "netdissect.h"
#include "extract.h"
#include "addrtoname.h"
#include "ethertype.h"
#include "gmpls.h"
#include "af.h"
#include "signature.h"
/*
* RFC 2205 common header
*
* 0 1 2 3
* +-------------+-------------+-------------+-------------+
* | Vers | Flags| Msg Type | RSVP Checksum |
* +-------------+-------------+-------------+-------------+
* | Send_TTL | (Reserved) | RSVP Length |
* +-------------+-------------+-------------+-------------+
*
*/
struct rsvp_common_header {
nd_uint8_t version_flags;
nd_uint8_t msg_type;
nd_uint16_t checksum;
nd_uint8_t ttl;
nd_byte reserved[1];
nd_uint16_t length;
};
/*
* RFC2205 object header
*
*
* 0 1 2 3
* +-------------+-------------+-------------+-------------+
* | Length (bytes) | Class-Num | C-Type |
* +-------------+-------------+-------------+-------------+
* | |
* // (Object contents) //
* | |
* +-------------+-------------+-------------+-------------+
*/
struct rsvp_object_header {
nd_uint16_t length;
nd_uint8_t class_num;
nd_uint8_t ctype;
};
#define RSVP_VERSION 1
#define RSVP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
#define RSVP_EXTRACT_FLAGS(x) ((x)&0x0f)
#define RSVP_MSGTYPE_PATH 1
#define RSVP_MSGTYPE_RESV 2
#define RSVP_MSGTYPE_PATHERR 3
#define RSVP_MSGTYPE_RESVERR 4
#define RSVP_MSGTYPE_PATHTEAR 5
#define RSVP_MSGTYPE_RESVTEAR 6
#define RSVP_MSGTYPE_RESVCONF 7
#define RSVP_MSGTYPE_BUNDLE 12
#define RSVP_MSGTYPE_ACK 13
#define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */
#define RSVP_MSGTYPE_SREFRESH 15
#define RSVP_MSGTYPE_HELLO 20
static const struct tok rsvp_msg_type_values[] = {
{ RSVP_MSGTYPE_PATH, "Path" },
{ RSVP_MSGTYPE_RESV, "Resv" },
{ RSVP_MSGTYPE_PATHERR, "PathErr" },
{ RSVP_MSGTYPE_RESVERR, "ResvErr" },
{ RSVP_MSGTYPE_PATHTEAR, "PathTear" },
{ RSVP_MSGTYPE_RESVTEAR, "ResvTear" },
{ RSVP_MSGTYPE_RESVCONF, "ResvConf" },
{ RSVP_MSGTYPE_BUNDLE, "Bundle" },
{ RSVP_MSGTYPE_ACK, "Acknowledgement" },
{ RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" },
{ RSVP_MSGTYPE_SREFRESH, "Refresh" },
{ RSVP_MSGTYPE_HELLO, "Hello" },
{ 0, NULL}
};
static const struct tok rsvp_header_flag_values[] = {
{ 0x01, "Refresh reduction capable" }, /* rfc2961 */
{ 0, NULL}
};
static const struct tok rsvp_obj_capability_flag_values[] = {
{ 0x0004, "RecoveryPath Transmit Enabled" },
{ 0x0002, "RecoveryPath Desired" },
{ 0x0001, "RecoveryPath Srefresh Capable" },
{ 0, NULL}
};
#define RSVP_OBJ_SESSION 1 /* rfc2205 */
#define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */
#define RSVP_OBJ_INTEGRITY 4 /* rfc2747 */
#define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */
#define RSVP_OBJ_ERROR_SPEC 6
#define RSVP_OBJ_SCOPE 7
#define RSVP_OBJ_STYLE 8 /* rfc2205 */
#define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */
#define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */
#define RSVP_OBJ_SENDER_TEMPLATE 11
#define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */
#define RSVP_OBJ_ADSPEC 13 /* rfc2215 */
#define RSVP_OBJ_POLICY_DATA 14
#define RSVP_OBJ_CONFIRM 15 /* rfc2205 */
#define RSVP_OBJ_LABEL 16 /* rfc3209 */
#define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */
#define RSVP_OBJ_ERO 20 /* rfc3209 */
#define RSVP_OBJ_RRO 21 /* rfc3209 */
#define RSVP_OBJ_HELLO 22 /* rfc3209 */
#define RSVP_OBJ_MESSAGE_ID 23 /* rfc2961 */
#define RSVP_OBJ_MESSAGE_ID_ACK 24 /* rfc2961 */
#define RSVP_OBJ_MESSAGE_ID_LIST 25 /* rfc2961 */
#define RSVP_OBJ_RECOVERY_LABEL 34 /* rfc3473 */
#define RSVP_OBJ_UPSTREAM_LABEL 35 /* rfc3473 */
#define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */
#define RSVP_OBJ_PROTECTION 37 /* rfc3473 */
#define RSVP_OBJ_S2L 50 /* rfc4875 */
#define RSVP_OBJ_DETOUR 63 /* rfc4090 */
#define RSVP_OBJ_CLASSTYPE 66 /* rfc4124 */
#define RSVP_OBJ_CLASSTYPE_OLD 125 /* draft-ietf-tewg-diff-te-proto-07 */
#define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */
#define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */
#define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */
#define RSVP_OBJ_CAPABILITY 134 /* rfc5063 */
#define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */
#define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */
#define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */
#define RSVP_OBJ_FASTREROUTE 205 /* rfc4090 */
#define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */
#define RSVP_OBJ_GENERALIZED_UNI 229 /* OIF RSVP extensions UNI 1.0 Signaling, Rel. 2 */
#define RSVP_OBJ_CALL_ID 230 /* rfc3474 */
#define RSVP_OBJ_CALL_OPS 236 /* rfc3474 */
static const struct tok rsvp_obj_values[] = {
{ RSVP_OBJ_SESSION, "Session" },
{ RSVP_OBJ_RSVP_HOP, "RSVP Hop" },
{ RSVP_OBJ_INTEGRITY, "Integrity" },
{ RSVP_OBJ_TIME_VALUES, "Time Values" },
{ RSVP_OBJ_ERROR_SPEC, "Error Spec" },
{ RSVP_OBJ_SCOPE, "Scope" },
{ RSVP_OBJ_STYLE, "Style" },
{ RSVP_OBJ_FLOWSPEC, "Flowspec" },
{ RSVP_OBJ_FILTERSPEC, "FilterSpec" },
{ RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" },
{ RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" },
{ RSVP_OBJ_ADSPEC, "Adspec" },
{ RSVP_OBJ_POLICY_DATA, "Policy Data" },
{ RSVP_OBJ_CONFIRM, "Confirm" },
{ RSVP_OBJ_LABEL, "Label" },
{ RSVP_OBJ_LABEL_REQ, "Label Request" },
{ RSVP_OBJ_ERO, "ERO" },
{ RSVP_OBJ_RRO, "RRO" },
{ RSVP_OBJ_HELLO, "Hello" },
{ RSVP_OBJ_MESSAGE_ID, "Message ID" },
{ RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" },
{ RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" },
{ RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" },
{ RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" },
{ RSVP_OBJ_LABEL_SET, "Label Set" },
{ RSVP_OBJ_ACCEPT_LABEL_SET, "Acceptable Label Set" },
{ RSVP_OBJ_DETOUR, "Detour" },
{ RSVP_OBJ_CLASSTYPE, "Class Type" },
{ RSVP_OBJ_CLASSTYPE_OLD, "Class Type (old)" },
{ RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" },
{ RSVP_OBJ_PROPERTIES, "Properties" },
{ RSVP_OBJ_FASTREROUTE, "Fast Re-Route" },
{ RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" },
{ RSVP_OBJ_GENERALIZED_UNI, "Generalized UNI" },
{ RSVP_OBJ_CALL_ID, "Call-ID" },
{ RSVP_OBJ_CALL_OPS, "Call Capability" },
{ RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" },
{ RSVP_OBJ_CAPABILITY, "Capability" },
{ RSVP_OBJ_NOTIFY_REQ, "Notify Request" },
{ RSVP_OBJ_PROTECTION, "Protection" },
{ RSVP_OBJ_ADMIN_STATUS, "Administrative Status" },
{ RSVP_OBJ_S2L, "Sub-LSP to LSP" },
{ 0, NULL}
};
#define RSVP_CTYPE_IPV4 1
#define RSVP_CTYPE_IPV6 2
#define RSVP_CTYPE_TUNNEL_IPV4 7
#define RSVP_CTYPE_TUNNEL_IPV6 8
#define RSVP_CTYPE_UNI_IPV4 11 /* OIF RSVP extensions UNI 1.0 Signaling Rel. 2 */
#define RSVP_CTYPE_1 1
#define RSVP_CTYPE_2 2
#define RSVP_CTYPE_3 3
#define RSVP_CTYPE_4 4
#define RSVP_CTYPE_12 12
#define RSVP_CTYPE_13 13
#define RSVP_CTYPE_14 14
/*
* the ctypes are not globally unique so for
* translating it to strings we build a table based
* on objects offsetted by the ctype
*/
static const struct tok rsvp_ctype_values[] = {
{ 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" },
{ 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" },
{ 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
{ 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
{ 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV4, "IPv4" },
{ 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV6, "IPv6" },
{ 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" },
{ 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" },
{ 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" },
{ 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" },
{ 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" },
{ 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" },
{ 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" },
{ 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" },
{ 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" },
{ 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
{ 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
{ 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
{ 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" },
{ 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" },
{ 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
{ 256*RSVP_OBJ_SESSION+RSVP_CTYPE_UNI_IPV4, "UNI IPv4" },
{ 256*RSVP_OBJ_SESSION+RSVP_CTYPE_13, "IPv4 P2MP LSP Tunnel" },
{ 256*RSVP_OBJ_SESSION+RSVP_CTYPE_14, "IPv6 P2MP LSP Tunnel" },
{ 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" },
{ 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" },
{ 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
{ 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" },
{ 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" },
{ 256*RSVP_OBJ_MESSAGE_ID+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_1, "Message id ack" },
{ 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_2, "Message id nack" },
{ 256*RSVP_OBJ_MESSAGE_ID_LIST+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" },
{ 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" },
{ 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" },
{ 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" },
{ 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" },
{ 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_4, "Generalized Label" },
{ 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "Label" },
{ 256*RSVP_OBJ_LABEL+RSVP_CTYPE_2, "Generalized Label" },
{ 256*RSVP_OBJ_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
{ 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_1, "Label" },
{ 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_2, "Generalized Label" },
{ 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
{ 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_1, "Label" },
{ 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_2, "Generalized Label" },
{ 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
{ 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_1, "Label" },
{ 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_2, "Generalized Label" },
{ 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_3, "Waveband Switching" },
{ 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" },
{ 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" },
{ 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" },
{ 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" },
{ 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" },
{ 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" },
{ 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" },
{ 256*RSVP_OBJ_CAPABILITY+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
{ 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, /* old style*/
{ 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_1, "1" }, /* new style */
{ 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" },
{ 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_ADMIN_STATUS+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_CLASSTYPE+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_CLASSTYPE_OLD+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_LABEL_SET+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_GENERALIZED_UNI+RSVP_CTYPE_1, "1" },
{ 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV4, "IPv4 sub-LSP" },
{ 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV6, "IPv6 sub-LSP" },
{ 0, NULL}
};
struct rsvp_obj_integrity_t {
uint8_t flags;
uint8_t res;
uint8_t key_id[6];
uint8_t sequence[8];
uint8_t digest[16];
};
static const struct tok rsvp_obj_integrity_flag_values[] = {
{ 0x80, "Handshake" },
{ 0, NULL}
};
struct rsvp_obj_frr_t {
uint8_t setup_prio;
uint8_t hold_prio;
uint8_t hop_limit;
uint8_t flags;
uint8_t bandwidth[4];
uint8_t include_any[4];
uint8_t exclude_any[4];
uint8_t include_all[4];
};
#define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f)
#define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80)
#define RSVP_OBJ_CAPABILITY_FLAGS_MASK 0x7
#define RSVP_OBJ_XRO_RES 0
#define RSVP_OBJ_XRO_IPV4 1
#define RSVP_OBJ_XRO_IPV6 2
#define RSVP_OBJ_XRO_LABEL 3
#define RSVP_OBJ_XRO_ASN 32
#define RSVP_OBJ_XRO_MPLS 64
static const struct tok rsvp_obj_xro_values[] = {
{ RSVP_OBJ_XRO_RES, "Reserved" },
{ RSVP_OBJ_XRO_IPV4, "IPv4 prefix" },
{ RSVP_OBJ_XRO_IPV6, "IPv6 prefix" },
{ RSVP_OBJ_XRO_LABEL, "Label" },
{ RSVP_OBJ_XRO_ASN, "Autonomous system number" },
{ RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" },
{ 0, NULL}
};
/* RFC4090 */
static const struct tok rsvp_obj_rro_flag_values[] = {
{ 0x01, "Local protection available" },
{ 0x02, "Local protection in use" },
{ 0x04, "Bandwidth protection" },
{ 0x08, "Node protection" },
{ 0, NULL}
};
/* RFC3209 */
static const struct tok rsvp_obj_rro_label_flag_values[] = {
{ 0x01, "Global" },
{ 0, NULL}
};
static const struct tok rsvp_resstyle_values[] = {
{ 17, "Wildcard Filter" },
{ 10, "Fixed Filter" },
{ 18, "Shared Explicit" },
{ 0, NULL}
};
#define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2
#define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5
static const struct tok rsvp_intserv_service_type_values[] = {
{ 1, "Default/Global Information" },
{ RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" },
{ RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" },
{ 0, NULL}
};
static const struct tok rsvp_intserv_parameter_id_values[] = {
{ 4, "IS hop cnt" },
{ 6, "Path b/w estimate" },
{ 8, "Minimum path latency" },
{ 10, "Composed MTU" },
{ 127, "Token Bucket TSpec" },
{ 130, "Guaranteed Service RSpec" },
{ 133, "End-to-end composed value for C" },
{ 134, "End-to-end composed value for D" },
{ 135, "Since-last-reshaping point composed C" },
{ 136, "Since-last-reshaping point composed D" },
{ 0, NULL}
};
static const struct tok rsvp_session_attribute_flag_values[] = {
{ 0x01, "Local Protection" },
{ 0x02, "Label Recording" },
{ 0x04, "SE Style" },
{ 0x08, "Bandwidth protection" }, /* RFC4090 */
{ 0x10, "Node protection" }, /* RFC4090 */
{ 0, NULL}
};
static const struct tok rsvp_obj_prop_tlv_values[] = {
{ 0x01, "Cos" },
{ 0x02, "Metric 1" },
{ 0x04, "Metric 2" },
{ 0x08, "CCC Status" },
{ 0x10, "Path Type" },
{ 0, NULL}
};
#define RSVP_OBJ_ERROR_SPEC_CODE_ROUTING 24
#define RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY 25
#define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE 28
#define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD 125
static const struct tok rsvp_obj_error_code_values[] = {
{ RSVP_OBJ_ERROR_SPEC_CODE_ROUTING, "Routing Problem" },
{ RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY, "Notify Error" },
{ RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE, "Diffserv TE Error" },
{ RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD, "Diffserv TE Error (Old)" },
{ 0, NULL}
};
static const struct tok rsvp_obj_error_code_routing_values[] = {
{ 1, "Bad EXPLICIT_ROUTE object" },
{ 2, "Bad strict node" },
{ 3, "Bad loose node" },
{ 4, "Bad initial subobject" },
{ 5, "No route available toward destination" },
{ 6, "Unacceptable label value" },
{ 7, "RRO indicated routing loops" },
{ 8, "non-RSVP-capable router in the path" },
{ 9, "MPLS label allocation failure" },
{ 10, "Unsupported L3PID" },
{ 0, NULL}
};
static const struct tok rsvp_obj_error_code_diffserv_te_values[] = {
{ 1, "Unexpected CT object" },
{ 2, "Unsupported CT" },
{ 3, "Invalid CT value" },
{ 4, "CT/setup priority do not form a configured TE-Class" },
{ 5, "CT/holding priority do not form a configured TE-Class" },
{ 6, "CT/setup priority and CT/holding priority do not form a configured TE-Class" },
{ 7, "Inconsistency between signaled PSC and signaled CT" },
{ 8, "Inconsistency between signaled PHBs and signaled CT" },
{ 0, NULL}
};
/* rfc3473 / rfc 3471 */
static const struct tok rsvp_obj_admin_status_flag_values[] = {
{ 0x80000000, "Reflect" },
{ 0x00000004, "Testing" },
{ 0x00000002, "Admin-down" },
{ 0x00000001, "Delete-in-progress" },
{ 0, NULL}
};
/* label set actions - rfc3471 */
#define LABEL_SET_INCLUSIVE_LIST 0
#define LABEL_SET_EXCLUSIVE_LIST 1
#define LABEL_SET_INCLUSIVE_RANGE 2
#define LABEL_SET_EXCLUSIVE_RANGE 3
static const struct tok rsvp_obj_label_set_action_values[] = {
{ LABEL_SET_INCLUSIVE_LIST, "Inclusive list" },
{ LABEL_SET_EXCLUSIVE_LIST, "Exclusive list" },
{ LABEL_SET_INCLUSIVE_RANGE, "Inclusive range" },
{ LABEL_SET_EXCLUSIVE_RANGE, "Exclusive range" },
{ 0, NULL}
};
/* OIF RSVP extensions UNI 1.0 Signaling, release 2 */
#define RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS 1
#define RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS 2
#define RSVP_GEN_UNI_SUBOBJ_DIVERSITY 3
#define RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL 4
#define RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL 5
static const struct tok rsvp_obj_generalized_uni_values[] = {
{ RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS, "Source TNA address" },
{ RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS, "Destination TNA address" },
{ RSVP_GEN_UNI_SUBOBJ_DIVERSITY, "Diversity" },
{ RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL, "Egress label" },
{ RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL, "Service level" },
{ 0, NULL}
};
/*
* this is a dissector for all the intserv defined
* specs as defined per rfc2215
* it is called from various rsvp objects;
* returns the amount of bytes being processed
*/
static u_int
rsvp_intserv_print(netdissect_options *ndo,
const u_char *tptr, u_int obj_tlen)
{
u_int parameter_id,parameter_length;
union {
float f;
uint32_t i;
} bw;
if (obj_tlen < 4)
return 0;
ND_TCHECK_1(tptr);
parameter_id = GET_U_1(tptr);
ND_TCHECK_2(tptr + 2);
parameter_length = GET_BE_U_2(tptr + 2)<<2; /* convert wordcount to bytecount */
ND_PRINT("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]",
tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id),
parameter_id,
parameter_length,
GET_U_1(tptr + 1));
if (obj_tlen < parameter_length+4)
return 0;
switch(parameter_id) { /* parameter_id */
case 4:
/*
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | 4 (e) | (f) | 1 (g) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | IS hop cnt (32-bit unsigned integer) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
if (parameter_length == 4) {
ND_TCHECK_4(tptr + 4);
ND_PRINT("\n\t\tIS hop count: %u", GET_BE_U_4(tptr + 4));
}
break;
case 6:
/*
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | 6 (h) | (i) | 1 (j) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Path b/w estimate (32-bit IEEE floating point number) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
if (parameter_length == 4) {
ND_TCHECK_4(tptr + 4);
bw.i = GET_BE_U_4(tptr + 4);
ND_PRINT("\n\t\tPath b/w estimate: %.10g Mbps", bw.f / 125000);
}
break;
case 8:
/*
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | 8 (k) | (l) | 1 (m) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Minimum path latency (32-bit integer) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
if (parameter_length == 4) {
ND_TCHECK_4(tptr + 4);
ND_PRINT("\n\t\tMinimum path latency: ");
if (GET_BE_U_4(tptr + 4) == 0xffffffff)
ND_PRINT("don't care");
else
ND_PRINT("%u", GET_BE_U_4(tptr + 4));
}
break;
case 10:
/*
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | 10 (n) | (o) | 1 (p) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Composed MTU (32-bit unsigned integer) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
if (parameter_length == 4) {
ND_TCHECK_4(tptr + 4);
ND_PRINT("\n\t\tComposed MTU: %u bytes", GET_BE_U_4(tptr + 4));
}
break;
case 127:
/*
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | 127 (e) | 0 (f) | 5 (g) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Token Bucket Rate [r] (32-bit IEEE floating point number) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Token Bucket Size [b] (32-bit IEEE floating point number) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Peak Data Rate [p] (32-bit IEEE floating point number) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Minimum Policed Unit [m] (32-bit integer) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Maximum Packet Size [M] (32-bit integer) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
if (parameter_length == 20) {
ND_TCHECK_LEN(tptr + 4, 20);
bw.i = GET_BE_U_4(tptr + 4);
ND_PRINT("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f / 125000);
bw.i = GET_BE_U_4(tptr + 8);
ND_PRINT("\n\t\tToken Bucket Size: %.10g bytes", bw.f);
bw.i = GET_BE_U_4(tptr + 12);
ND_PRINT("\n\t\tPeak Data Rate: %.10g Mbps", bw.f / 125000);
ND_PRINT("\n\t\tMinimum Policed Unit: %u bytes",
GET_BE_U_4(tptr + 16));
ND_PRINT("\n\t\tMaximum Packet Size: %u bytes",
GET_BE_U_4(tptr + 20));
}
break;
case 130:
/*
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | 130 (h) | 0 (i) | 2 (j) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Rate [R] (32-bit IEEE floating point number) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | Slack Term [S] (32-bit integer) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
if (parameter_length == 8) {
ND_TCHECK_8(tptr + 4);
bw.i = GET_BE_U_4(tptr + 4);
ND_PRINT("\n\t\tRate: %.10g Mbps", bw.f / 125000);
ND_PRINT("\n\t\tSlack Term: %u", GET_BE_U_4(tptr + 8));
}
break;
case 133:
case 134:
case 135:
case 136:
if (parameter_length == 4) {
ND_TCHECK_4(tptr + 4);
ND_PRINT("\n\t\tValue: %u", GET_BE_U_4(tptr + 4));
}
break;
default:
if (ndo->ndo_vflag <= 1)
print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length);
}
return (parameter_length+4); /* header length 4 bytes */
trunc:
nd_print_trunc(ndo);
return 0;
}
/*
* Clear checksum prior to signature verification.
*/
static void
rsvp_clear_checksum(void *header)
{
struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header;
rsvp_com_header->checksum[0] = 0;
rsvp_com_header->checksum[1] = 0;
}
static int
rsvp_obj_print(netdissect_options *ndo,
const u_char *pptr, u_int plen, const u_char *tptr,
const char *indent, u_int tlen,
const struct rsvp_common_header *rsvp_com_header)
{
const struct rsvp_object_header *rsvp_obj_header;
const u_char *obj_tptr;
union {
const struct rsvp_obj_integrity_t *rsvp_obj_integrity;
const struct rsvp_obj_frr_t *rsvp_obj_frr;
} obj_ptr;
u_short rsvp_obj_len,rsvp_obj_ctype,rsvp_obj_class_num;
u_int obj_tlen,intserv_serv_tlen;
int hexdump;
u_int processed,padbytes,error_code,error_value,i,sigcheck;
union {
float f;
uint32_t i;
} bw;
u_int namelen;
u_int action, subchannel;
while(tlen>=sizeof(struct rsvp_object_header)) {
/* did we capture enough for fully decoding the object header ? */
ND_TCHECK_LEN(tptr, sizeof(struct rsvp_object_header));
rsvp_obj_header = (const struct rsvp_object_header *)tptr;
rsvp_obj_len=GET_BE_U_2(rsvp_obj_header->length);
rsvp_obj_ctype=GET_U_1(rsvp_obj_header->ctype);
if(rsvp_obj_len % 4) {
ND_PRINT("%sERROR: object header size %u not a multiple of 4", indent, rsvp_obj_len);
return -1;
}
if(rsvp_obj_len < sizeof(struct rsvp_object_header)) {
ND_PRINT("%sERROR: object header too short %u < %zu", indent, rsvp_obj_len,
sizeof(struct rsvp_object_header));
return -1;
}
rsvp_obj_class_num = GET_U_1(rsvp_obj_header->class_num);
ND_PRINT("%s%s Object (%u) Flags: [%s",
indent,
tok2str(rsvp_obj_values,
"Unknown",
rsvp_obj_class_num),
rsvp_obj_class_num,
(rsvp_obj_class_num & 0x80) ?
((rsvp_obj_class_num & 0x40) ? "ignore and forward" :
"ignore silently") :
"reject");
ND_PRINT(" if unknown], Class-Type: %s (%u), length: %u",
tok2str(rsvp_ctype_values,
"Unknown",
(rsvp_obj_class_num<<8)+rsvp_obj_ctype),
rsvp_obj_ctype,
rsvp_obj_len);
if(tlen < rsvp_obj_len) {
ND_PRINT("%sERROR: object goes past end of objects TLV", indent);
return -1;
}
obj_tptr=tptr+sizeof(struct rsvp_object_header);
obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header);
/* did we capture enough for fully decoding the object ? */
ND_TCHECK_LEN(tptr, rsvp_obj_len);
hexdump=FALSE;
switch(rsvp_obj_class_num) {
case RSVP_OBJ_SESSION:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
if (obj_tlen < 8)
return -1;
ND_PRINT("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x",
indent,
GET_IPADDR_STRING(obj_tptr),
GET_U_1(obj_tptr + sizeof(nd_ipv4)));
ND_PRINT("%s Flags: [0x%02x], DestPort %u",
indent,
GET_U_1((obj_tptr + 5)),
GET_BE_U_2(obj_tptr + 6));
obj_tlen-=8;
obj_tptr+=8;
break;
case RSVP_CTYPE_IPV6:
if (obj_tlen < 20)
return -1;
ND_PRINT("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x",
indent,
GET_IP6ADDR_STRING(obj_tptr),
GET_U_1(obj_tptr + sizeof(nd_ipv6)));
ND_PRINT("%s Flags: [0x%02x], DestPort %u",
indent,
GET_U_1((obj_tptr + sizeof(nd_ipv6) + 1)),
GET_BE_U_2(obj_tptr + sizeof(nd_ipv6) + 2));
obj_tlen-=20;
obj_tptr+=20;
break;
case RSVP_CTYPE_TUNNEL_IPV6:
if (obj_tlen < 36)
return -1;
ND_PRINT("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
indent,
GET_IP6ADDR_STRING(obj_tptr),
GET_BE_U_2(obj_tptr + 18),
GET_IP6ADDR_STRING(obj_tptr + 20));
obj_tlen-=36;
obj_tptr+=36;
break;
case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */
if (obj_tlen < 26)
return -1;
ND_PRINT("%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
indent,
GET_BE_U_4(obj_tptr),
GET_BE_U_2(obj_tptr + 6),
GET_IP6ADDR_STRING(obj_tptr + 8));
obj_tlen-=26;
obj_tptr+=26;
break;
case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */
if (obj_tlen < 12)
return -1;
ND_PRINT("%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
indent,
GET_IPADDR_STRING(obj_tptr),
GET_BE_U_2(obj_tptr + 6),
GET_IPADDR_STRING(obj_tptr + 8));
obj_tlen-=12;
obj_tptr+=12;
break;
case RSVP_CTYPE_TUNNEL_IPV4:
case RSVP_CTYPE_UNI_IPV4:
if (obj_tlen < 12)
return -1;
ND_PRINT("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s",
indent,
GET_IPADDR_STRING(obj_tptr),
GET_BE_U_2(obj_tptr + 6),
GET_IPADDR_STRING(obj_tptr + 8));
obj_tlen-=12;
obj_tptr+=12;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_CONFIRM:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
if (obj_tlen < sizeof(nd_ipv4))
return -1;
ND_PRINT("%s IPv4 Receiver Address: %s",
indent,
GET_IPADDR_STRING(obj_tptr));
obj_tlen-=sizeof(nd_ipv4);
obj_tptr+=sizeof(nd_ipv4);
break;
case RSVP_CTYPE_IPV6:
if (obj_tlen < sizeof(nd_ipv6))
return -1;
ND_PRINT("%s IPv6 Receiver Address: %s",
indent,
GET_IP6ADDR_STRING(obj_tptr));
obj_tlen-=sizeof(nd_ipv6);
obj_tptr+=sizeof(nd_ipv6);
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_NOTIFY_REQ:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
if (obj_tlen < sizeof(nd_ipv4))
return -1;
ND_PRINT("%s IPv4 Notify Node Address: %s",
indent,
GET_IPADDR_STRING(obj_tptr));
obj_tlen-=sizeof(nd_ipv4);
obj_tptr+=sizeof(nd_ipv4);
break;
case RSVP_CTYPE_IPV6:
if (obj_tlen < sizeof(nd_ipv6))
return-1;
ND_PRINT("%s IPv6 Notify Node Address: %s",
indent,
GET_IP6ADDR_STRING(obj_tptr));
obj_tlen-=sizeof(nd_ipv6);
obj_tptr+=sizeof(nd_ipv6);
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */
case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */
case RSVP_OBJ_RECOVERY_LABEL: /* fall through */
case RSVP_OBJ_LABEL:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
while(obj_tlen >= 4 ) {
ND_PRINT("%s Label: %u", indent, GET_BE_U_4(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
}
break;
case RSVP_CTYPE_2:
if (obj_tlen < 4)
return-1;
ND_PRINT("%s Generalized Label: %u",
indent,
GET_BE_U_4(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
break;
case RSVP_CTYPE_3:
if (obj_tlen < 12)
return-1;
ND_PRINT("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u",
indent,
GET_BE_U_4(obj_tptr),
indent,
GET_BE_U_4(obj_tptr + 4),
GET_BE_U_4(obj_tptr + 8));
obj_tlen-=12;
obj_tptr+=12;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_STYLE:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
return-1;
ND_PRINT("%s Reservation Style: %s, Flags: [0x%02x]",
indent,
tok2str(rsvp_resstyle_values,
"Unknown",
GET_BE_U_3(obj_tptr + 1)),
GET_U_1(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_SENDER_TEMPLATE:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
if (obj_tlen < 8)
return-1;
ND_PRINT("%s Source Address: %s, Source Port: %u",
indent,
GET_IPADDR_STRING(obj_tptr),
GET_BE_U_2(obj_tptr + 6));
obj_tlen-=8;
obj_tptr+=8;
break;
case RSVP_CTYPE_IPV6:
if (obj_tlen < 20)
return-1;
ND_PRINT("%s Source Address: %s, Source Port: %u",
indent,
GET_IP6ADDR_STRING(obj_tptr),
GET_BE_U_2(obj_tptr + 18));
obj_tlen-=20;
obj_tptr+=20;
break;
case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */
if (obj_tlen < 40)
return-1;
ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x"
"%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
indent,
GET_IP6ADDR_STRING(obj_tptr),
GET_BE_U_2(obj_tptr + 18),
indent,
GET_IP6ADDR_STRING(obj_tptr+20),
GET_BE_U_2(obj_tptr + 38));
obj_tlen-=40;
obj_tptr+=40;
break;
case RSVP_CTYPE_TUNNEL_IPV4:
if (obj_tlen < 8)
return-1;
ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x",
indent,
GET_IPADDR_STRING(obj_tptr),
GET_BE_U_2(obj_tptr + 6));
obj_tlen-=8;
obj_tptr+=8;
break;
case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */
if (obj_tlen < 16)
return-1;
ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x"
"%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x",
indent,
GET_IPADDR_STRING(obj_tptr),
GET_BE_U_2(obj_tptr + 6),
indent,
GET_IPADDR_STRING(obj_tptr+8),
GET_BE_U_2(obj_tptr + 12));
obj_tlen-=16;
obj_tptr+=16;
break;
default:
hexdump=TRUE;