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c1db7c9eb7
tcpdump/print-rsvp.c
Guy Harris 9cfe4fc113 Rename AF_INET{6} to AF_IP{6}. 
That matches the descriptiions in the registry, and indicates that they
don't correspond to any AF_ values.
2023-02-20 13:37:07 -08:00

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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"
#define ND_LONGJMP_FROM_TCHECK
#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}
};
/*
* XXX - this assumes a 16-byte digest, which is true for HMAC-MD5, but
* isn't necessarily the case for other hash algorithms.
*
* Unless I've missed something, there's nothing in RFC 2747 to indicate
* the hash algorithm being used, so it's presumably something set up
* out-of-band, or negotiated by other RSVP objects.
*/
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 0x7U
#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;
ND_ICHECK_U(obj_tlen, <, 4);
parameter_id = GET_U_1(tptr);
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));
ND_ICHECK_U(obj_tlen, <, parameter_length + 4);
switch(parameter_id) { /* parameter_id */
case 4:
/*
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | 4 (e) | (f) | 1 (g) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | IS hop cnt (32-bit unsigned integer) |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*/
if (parameter_length == 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) {
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_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_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) {
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) {
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_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 */
invalid:
nd_print_invalid(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)) {
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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))
goto obj_tooshort;
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))
goto obj_tooshort;
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))
goto obj_tooshort;
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))
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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)
goto obj_tooshort;
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;
}
break;
case RSVP_OBJ_LABEL_REQ:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
while(obj_tlen >= 4 ) {
ND_PRINT("%s L3 Protocol ID: %s",
indent,
tok2str(ethertype_values,
"Unknown Protocol (0x%04x)",
GET_BE_U_2(obj_tptr + 2)));
obj_tlen-=4;
obj_tptr+=4;
}
break;
case RSVP_CTYPE_2:
if (obj_tlen < 12)
goto obj_tooshort;
ND_PRINT("%s L3 Protocol ID: %s",
indent,
tok2str(ethertype_values,
"Unknown Protocol (0x%04x)",
GET_BE_U_2(obj_tptr + 2)));
ND_PRINT(",%s merge capability",
((GET_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" );
ND_PRINT("%s Minimum VPI/VCI: %u/%u",
indent,
(GET_BE_U_2(obj_tptr + 4))&0xfff,
(GET_BE_U_2(obj_tptr + 6)) & 0xfff);
ND_PRINT("%s Maximum VPI/VCI: %u/%u",
indent,
(GET_BE_U_2(obj_tptr + 8))&0xfff,
(GET_BE_U_2(obj_tptr + 10)) & 0xfff);
obj_tlen-=12;
obj_tptr+=12;
break;
case RSVP_CTYPE_3:
if (obj_tlen < 12)
goto obj_tooshort;
ND_PRINT("%s L3 Protocol ID: %s",
indent,
tok2str(ethertype_values,
"Unknown Protocol (0x%04x)",
GET_BE_U_2(obj_tptr + 2)));
ND_PRINT("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI",
indent,
(GET_BE_U_4(obj_tptr + 4))&0x7fffff,
(GET_BE_U_4(obj_tptr + 8))&0x7fffff,
(((GET_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "",
(((GET_BE_U_2(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : "");
obj_tlen-=12;
obj_tptr+=12;
break;
case RSVP_CTYPE_4:
if (obj_tlen < 4)
goto obj_tooshort;
ND_PRINT("%s LSP Encoding Type: %s (%u)",
indent,
tok2str(gmpls_encoding_values,
"Unknown",
GET_U_1(obj_tptr)),
GET_U_1(obj_tptr));
ND_PRINT("%s Switching Type: %s (%u), Payload ID: %s (0x%04x)",
indent,
tok2str(gmpls_switch_cap_values,
"Unknown",
GET_U_1((obj_tptr + 1))),
GET_U_1(obj_tptr + 1),
tok2str(gmpls_payload_values,
"Unknown",
GET_BE_U_2(obj_tptr + 2)),
GET_BE_U_2(obj_tptr + 2));
obj_tlen-=4;
obj_tptr+=4;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_RRO:
case RSVP_OBJ_ERO:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
while(obj_tlen >= 4 ) {
u_char length;
ND_TCHECK_4(obj_tptr);
length = GET_U_1(obj_tptr + 1);
ND_PRINT("%s Subobject Type: %s, length %u",
indent,
tok2str(rsvp_obj_xro_values,
"Unknown %u",
RSVP_OBJ_XRO_MASK_SUBOBJ(GET_U_1(obj_tptr))),
length);
if (obj_tlen < length) {
ND_PRINT("%s ERROR: ERO subobject length > object length", indent);
break;
}
if (length == 0) { /* prevent infinite loops */
ND_PRINT("%s ERROR: zero length ERO subtype", indent);
break;
}
switch(RSVP_OBJ_XRO_MASK_SUBOBJ(GET_U_1(obj_tptr))) {
u_char prefix_length;
case RSVP_OBJ_XRO_IPV4:
if (length != 8) {
ND_PRINT(" ERROR: length != 8");
goto invalid;
}
ND_TCHECK_8(obj_tptr);
prefix_length = GET_U_1(obj_tptr + 6);
if (prefix_length != 32) {
ND_PRINT(" ERROR: Prefix length %u != 32",
prefix_length);
goto invalid;
}
ND_PRINT(", %s, %s/%u, Flags: [%s]",
RSVP_OBJ_XRO_MASK_LOOSE(GET_U_1(obj_tptr)) ? "Loose" : "Strict",
GET_IPADDR_STRING(obj_tptr+2),
GET_U_1((obj_tptr + 6)),
bittok2str(rsvp_obj_rro_flag_values,
"none",
GET_U_1((obj_tptr + 7)))); /* rfc3209 says that this field is rsvd. */
break;
case RSVP_OBJ_XRO_LABEL:
if (length != 8) {
ND_PRINT(" ERROR: length != 8");
goto invalid;
}
ND_PRINT(", Flags: [%s] (%#x), Class-Type: %s (%u), %u",
bittok2str(rsvp_obj_rro_label_flag_values,
"none",
GET_U_1((obj_tptr + 2))),
GET_U_1(obj_tptr + 2),
tok2str(rsvp_ctype_values,
"Unknown",
GET_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)),
GET_U_1((obj_tptr + 3)),
GET_BE_U_4(obj_tptr + 4));
}
obj_tlen-=length;
obj_tptr+=length;
}
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_HELLO:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
case RSVP_CTYPE_2:
if (obj_tlen < 8)
goto obj_tooshort;
ND_PRINT("%s Source Instance: 0x%08x, Destination Instance: 0x%08x",
indent,
GET_BE_U_4(obj_tptr),
GET_BE_U_4(obj_tptr + 4));
obj_tlen-=8;
obj_tptr+=8;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_RESTART_CAPABILITY:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 8)
goto obj_tooshort;
ND_PRINT("%s Restart Time: %ums, Recovery Time: %ums",
indent,
GET_BE_U_4(obj_tptr),
GET_BE_U_4(obj_tptr + 4));
obj_tlen-=8;
obj_tptr+=8;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_CAPABILITY:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
goto obj_tooshort;
uint32_t unused_and_flags = GET_BE_U_4(obj_tptr);
if (unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK)
ND_PRINT("%s [reserved=0x%08x must be zero]", indent,
unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK);
ND_PRINT("%s Flags: [%s]",
indent,
bittok2str(rsvp_obj_capability_flag_values,
"none",
(unused_and_flags & RSVP_OBJ_CAPABILITY_FLAGS_MASK)));
obj_tlen-=4;
obj_tptr+=4;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_SESSION_ATTRIBUTE:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_TUNNEL_IPV4:
if (obj_tlen < 4)
goto obj_tooshort;
namelen = GET_U_1(obj_tptr + 3);
if (obj_tlen < 4+namelen)
goto obj_tooshort;
ND_PRINT("%s Session Name: ", indent);
for (i = 0; i < namelen; i++)
fn_print_char(ndo, GET_U_1(obj_tptr + 4 + i));
ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)",
indent,
GET_U_1(obj_tptr),
GET_U_1(obj_tptr + 1),
bittok2str(rsvp_session_attribute_flag_values,
"none",
GET_U_1((obj_tptr + 2))),
GET_U_1(obj_tptr + 2));
obj_tlen-=4+namelen;
obj_tptr+=4+namelen;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_GENERALIZED_UNI:
switch(rsvp_obj_ctype) {
u_int subobj_type,af,subobj_len,total_subobj_len;
case RSVP_CTYPE_1:
if (obj_tlen < 4)
goto obj_tooshort;
/* read variable length subobjects */
total_subobj_len = obj_tlen;
while(total_subobj_len > 0) {
/* If RFC 3476 Section 3.1 defined that a sub-object of the
* GENERALIZED_UNI RSVP object must have the Length field as
* a multiple of 4, instead of the check below it would be
* better to test total_subobj_len only once before the loop.
* So long as it does not define it and this while loop does
* not implement such a requirement, let's accept that within
* each iteration subobj_len may happen to be a multiple of 1
* and test it and total_subobj_len respectively.
*/
ND_ICHECK_U(total_subobj_len, <, 4);
subobj_len = GET_BE_U_2(obj_tptr);
subobj_type = (GET_BE_U_2(obj_tptr + 2))>>8;
af = (GET_BE_U_2(obj_tptr + 2))&0x00FF;
ND_PRINT("%s Subobject Type: %s (%u), AF: %s (%u), length: %u",
indent,
tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type),
subobj_type,
tok2str(af_values, "Unknown", af), af,
subobj_len);
/* In addition to what is explained above, the same spec does not
* explicitly say that the same Length field includes the 4-octet
* sub-object header, but as long as this while loop implements it
* as it does include, let's keep the check below consistent with
* the rest of the code.
*
* XXX - RFC 3476 Section 3.1 says "The contents of these
* sub-objects are described in [8]", where [8] is
* UNI 1.0 Signaling Specification, The Optical
* Internetworking Forum. The URL they give for that
* document is
*
* http://www.oiforum.com/public/UNI_1.0_ia.html
*
* but that doesn't work; the new URL appears to be
*
* https://web.archive.org/web/20160401194747/http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf
*
* and *that* document, in section 12.5.2.3
* "GENERALIZED_UNI Object (Class-Num=11bbbbbb (TBA))",
* says nothing about the length field in general, but
* some of the examples it gives in subsections have
* length field values that clearly includes the length
* of the sub-object header as well as the length of the
* value.
*/
if(subobj_len < 4 || subobj_len > total_subobj_len ||
obj_tlen < subobj_len)
goto invalid;
switch(subobj_type) {
case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS:
case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS:
switch(af) {
case AFNUM_IP:
if (subobj_len < 8)
goto subobj_tooshort;
ND_PRINT("%s UNI IPv4 TNA address: %s",
indent, GET_IPADDR_STRING(obj_tptr + 4));
break;
case AFNUM_IP6:
if (subobj_len < 20)
goto subobj_tooshort;
ND_PRINT("%s UNI IPv6 TNA address: %s",
indent, GET_IP6ADDR_STRING(obj_tptr + 4));
break;
case AFNUM_NSAP:
if (subobj_len) {
/* unless we have a TLV parser lets just hexdump */
hexdump=TRUE;
}
break;
}
break;
case RSVP_GEN_UNI_SUBOBJ_DIVERSITY:
if (subobj_len > 4) {
/* unless we have a TLV parser lets just hexdump */
hexdump=TRUE;
}
break;
case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL:
if (subobj_len < 16) {
goto subobj_tooshort;
}
ND_PRINT("%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u",
indent,
((GET_BE_U_4(obj_tptr + 4))>>31),
((GET_BE_U_4(obj_tptr + 4))&0xFF),
GET_BE_U_4(obj_tptr + 8),
GET_BE_U_4(obj_tptr + 12));
break;
case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL:
if (subobj_len < 8) {
goto subobj_tooshort;
}
ND_PRINT("%s Service level: %u",
indent, (GET_BE_U_4(obj_tptr + 4)) >> 24);
break;
default:
hexdump=TRUE;
break;
}
total_subobj_len-=subobj_len;
obj_tptr+=subobj_len;
obj_tlen+=subobj_len;
}
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_RSVP_HOP:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
case RSVP_CTYPE_IPV4:
if (obj_tlen < 8)
goto obj_tooshort;
ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
indent,
GET_IPADDR_STRING(obj_tptr),
GET_BE_U_4(obj_tptr + 4));
obj_tlen-=8;
obj_tptr+=8;
if (obj_tlen)
hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
break;
case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
case RSVP_CTYPE_IPV6:
if (obj_tlen < 20)
goto obj_tooshort;
ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x",
indent,
GET_IP6ADDR_STRING(obj_tptr),
GET_BE_U_4(obj_tptr + 16));
obj_tlen-=20;
obj_tptr+=20;
hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_TIME_VALUES:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
goto obj_tooshort;
ND_PRINT("%s Refresh Period: %ums",
indent,
GET_BE_U_4(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
break;
default:
hexdump=TRUE;
}
break;
/* those three objects do share the same semantics */
case RSVP_OBJ_SENDER_TSPEC:
case RSVP_OBJ_ADSPEC:
case RSVP_OBJ_FLOWSPEC:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_2:
if (obj_tlen < 4)
goto obj_tooshort;
ND_PRINT("%s Msg-Version: %u, length: %u",
indent,
(GET_U_1(obj_tptr) & 0xf0) >> 4,
GET_BE_U_2(obj_tptr + 2) << 2);
obj_tptr+=4; /* get to the start of the service header */
obj_tlen-=4;
while (obj_tlen >= 4) {
intserv_serv_tlen=GET_BE_U_2(obj_tptr + 2)<<2;
ND_PRINT("%s Service Type: %s (%u), break bit %sset, Service length: %u",
indent,
tok2str(rsvp_intserv_service_type_values,"unknown",GET_U_1((obj_tptr))),
GET_U_1(obj_tptr),
(GET_U_1(obj_tptr + 1)&0x80) ? "" : "not ",
intserv_serv_tlen);
obj_tptr+=4; /* get to the start of the parameter list */
obj_tlen-=4;
while (intserv_serv_tlen>=4) {
processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen);
if (processed == 0)
break;
obj_tlen-=processed;
intserv_serv_tlen-=processed;
obj_tptr+=processed;
}
}
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_FILTERSPEC:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
if (obj_tlen < 8)
goto obj_tooshort;
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)
goto obj_tooshort;
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_3:
if (obj_tlen < 20)
goto obj_tooshort;
ND_PRINT("%s Source Address: %s, Flow Label: %u",
indent,
GET_IP6ADDR_STRING(obj_tptr),
GET_BE_U_3(obj_tptr + 17));
obj_tlen-=20;
obj_tptr+=20;
break;
case RSVP_CTYPE_TUNNEL_IPV6:
if (obj_tlen < 20)
goto obj_tooshort;
ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x",
indent,
GET_IPADDR_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)
goto obj_tooshort;
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)
goto obj_tooshort;
ND_PRINT("%s Source 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)
goto obj_tooshort;
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;
}
break;
case RSVP_OBJ_FASTREROUTE:
/* the differences between c-type 1 and 7 are minor */
obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr;
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1: /* new style */
if (obj_tlen < sizeof(struct rsvp_obj_frr_t))
goto obj_tooshort;
bw.i = GET_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
indent,
obj_ptr.rsvp_obj_frr->setup_prio,
obj_ptr.rsvp_obj_frr->hold_prio,
obj_ptr.rsvp_obj_frr->hop_limit,
bw.f * 8 / 1000000);
ND_PRINT("%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x",
indent,
GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
GET_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any),
GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_all));
obj_tlen-=sizeof(struct rsvp_obj_frr_t);
obj_tptr+=sizeof(struct rsvp_obj_frr_t);
break;
case RSVP_CTYPE_TUNNEL_IPV4: /* old style */
if (obj_tlen < 16)
goto obj_tooshort;
bw.i = GET_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth);
ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps",
indent,
obj_ptr.rsvp_obj_frr->setup_prio,
obj_ptr.rsvp_obj_frr->hold_prio,
obj_ptr.rsvp_obj_frr->hop_limit,
bw.f * 8 / 1000000);
ND_PRINT("%s Include Colors: 0x%08x, Exclude Colors: 0x%08x",
indent,
GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_any),
GET_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any));
obj_tlen-=16;
obj_tptr+=16;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_DETOUR:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_TUNNEL_IPV4:
while(obj_tlen >= 8) {
ND_PRINT("%s PLR-ID: %s, Avoid-Node-ID: %s",
indent,
GET_IPADDR_STRING(obj_tptr),
GET_IPADDR_STRING(obj_tptr + 4));
obj_tlen-=8;
obj_tptr+=8;
}
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_CLASSTYPE:
case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
goto obj_tooshort;
ND_PRINT("%s CT: %u",
indent,
GET_BE_U_4(obj_tptr) & 0x7);
obj_tlen-=4;
obj_tptr+=4;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_ERROR_SPEC:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */
case RSVP_CTYPE_IPV4:
if (obj_tlen < 8)
goto obj_tooshort;
error_code=GET_U_1(obj_tptr + 5);
error_value=GET_BE_U_2(obj_tptr + 6);
ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
indent,
GET_IPADDR_STRING(obj_tptr),
GET_U_1(obj_tptr + 4),
indent,
tok2str(rsvp_obj_error_code_values,"unknown",error_code),
error_code);
switch (error_code) {
case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
ND_PRINT(", Error Value: %s (%u)",
tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
error_value);
break;
case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */
case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD:
ND_PRINT(", Error Value: %s (%u)",
tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value),
error_value);
break;
default:
ND_PRINT(", Unknown Error Value (%u)", error_value);
break;
}
obj_tlen-=8;
obj_tptr+=8;
break;
case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */
case RSVP_CTYPE_IPV6:
if (obj_tlen < 20)
goto obj_tooshort;
error_code=GET_U_1(obj_tptr + 17);
error_value=GET_BE_U_2(obj_tptr + 18);
ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)",
indent,
GET_IP6ADDR_STRING(obj_tptr),
GET_U_1(obj_tptr + 16),
indent,
tok2str(rsvp_obj_error_code_values,"unknown",error_code),
error_code);
switch (error_code) {
case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING:
ND_PRINT(", Error Value: %s (%u)",
tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value),
error_value);
break;
default:
break;
}
obj_tlen-=20;
obj_tptr+=20;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_PROPERTIES:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
goto obj_tooshort;
padbytes = GET_BE_U_2(obj_tptr + 2);
ND_PRINT("%s TLV count: %u, padding bytes: %u",
indent,
GET_BE_U_2(obj_tptr),
padbytes);
obj_tlen-=4;
obj_tptr+=4;
/* loop through as long there is anything longer than the TLV header (2) */
while(obj_tlen >= 2 + padbytes) {
ND_PRINT("%s %s TLV (0x%02x), length: %u", /* length includes header */
indent,
tok2str(rsvp_obj_prop_tlv_values,"unknown",GET_U_1(obj_tptr)),
GET_U_1(obj_tptr),
GET_U_1(obj_tptr + 1));
if (obj_tlen < GET_U_1(obj_tptr + 1))
goto obj_tooshort;
if (GET_U_1(obj_tptr + 1) < 2) {
ND_PRINT("%sERROR: property TLV is too short", indent);
return -1;
}
print_unknown_data(ndo, obj_tptr + 2, "\n\t\t",
GET_U_1(obj_tptr + 1) - 2);
obj_tlen-=GET_U_1(obj_tptr + 1);
obj_tptr+=GET_U_1(obj_tptr + 1);
}
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_MESSAGE_ID: /* fall through */
case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */
case RSVP_OBJ_MESSAGE_ID_LIST:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
case RSVP_CTYPE_2:
if (obj_tlen < 4)
goto obj_tooshort;
ND_PRINT("%s Flags [0x%02x], epoch: %u",
indent,
GET_U_1(obj_tptr),
GET_BE_U_3(obj_tptr + 1));
obj_tlen-=4;
obj_tptr+=4;
/* loop through as long there are no messages left */
while(obj_tlen >= 4) {
ND_PRINT("%s Message-ID 0x%08x (%u)",
indent,
GET_BE_U_4(obj_tptr),
GET_BE_U_4(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
}
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_INTEGRITY:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < sizeof(struct rsvp_obj_integrity_t))
goto obj_tooshort;
obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr;
ND_PRINT("%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]",
indent,
GET_BE_U_2(obj_ptr.rsvp_obj_integrity->key_id),
GET_BE_U_4(obj_ptr.rsvp_obj_integrity->key_id + 2),
GET_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence),
GET_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence + 4),
bittok2str(rsvp_obj_integrity_flag_values,
"none",
obj_ptr.rsvp_obj_integrity->flags));
ND_PRINT("%s MD5-sum 0x%08x%08x%08x%08x ",
indent,
GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest),
GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4),
GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8),
GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12));
sigcheck = signature_verify(ndo, pptr, plen,
obj_ptr.rsvp_obj_integrity->digest,
rsvp_clear_checksum,
rsvp_com_header);
ND_PRINT(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck));
obj_tlen+=sizeof(struct rsvp_obj_integrity_t);
obj_tptr+=sizeof(struct rsvp_obj_integrity_t);
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_ADMIN_STATUS:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
goto obj_tooshort;
ND_PRINT("%s Flags [%s]", indent,
bittok2str(rsvp_obj_admin_status_flag_values, "none",
GET_BE_U_4(obj_tptr)));
obj_tlen-=4;
obj_tptr+=4;
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_LABEL_SET:
switch(rsvp_obj_ctype) {
case RSVP_CTYPE_1:
if (obj_tlen < 4)
goto obj_tooshort;
action = (GET_BE_U_2(obj_tptr)>>8);
ND_PRINT("%s Action: %s (%u), Label type: %u", indent,
tok2str(rsvp_obj_label_set_action_values, "Unknown", action),
action, (GET_BE_U_4(obj_tptr) & 0x7F));
switch (action) {
case LABEL_SET_INCLUSIVE_RANGE:
case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */
/* only a couple of subchannels are expected */
if (obj_tlen < 12)
goto obj_tooshort;
ND_PRINT("%s Start range: %u, End range: %u", indent,
GET_BE_U_4(obj_tptr + 4),
GET_BE_U_4(obj_tptr + 8));
obj_tlen-=12;
obj_tptr+=12;
break;
default:
obj_tlen-=4;
obj_tptr+=4;
subchannel = 1;
while(obj_tlen >= 4 ) {
ND_PRINT("%s Subchannel #%u: %u", indent, subchannel,
GET_BE_U_4(obj_tptr));
obj_tptr+=4;
obj_tlen-=4;
subchannel++;
}
break;
}
break;
default:
hexdump=TRUE;
}
break;
case RSVP_OBJ_S2L:
switch (rsvp_obj_ctype) {
case RSVP_CTYPE_IPV4:
if (obj_tlen < 4)
goto obj_tooshort;
ND_PRINT("%s Sub-LSP destination address: %s",
indent, GET_IPADDR_STRING(obj_tptr));
obj_tlen-=4;
obj_tptr+=4;
break;
case RSVP_CTYPE_IPV6:
if (obj_tlen < 16)
goto obj_tooshort;
ND_PRINT("%s Sub-LSP destination address: %s",
indent, GET_IP6ADDR_STRING(obj_tptr));
obj_tlen-=16;
obj_tptr+=16;
break;
default:
hexdump=TRUE;
}
break;
/*
* FIXME those are the defined objects that lack a decoder
* you are welcome to contribute code ;-)
*/
case RSVP_OBJ_SCOPE:
case RSVP_OBJ_POLICY_DATA:
case RSVP_OBJ_ACCEPT_LABEL_SET:
case RSVP_OBJ_PROTECTION:
default:
if (ndo->ndo_vflag <= 1)
print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */
break;
}
/* do we also want to see a hex dump ? */
if (ndo->ndo_vflag > 1 || hexdump == TRUE)
print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */
rsvp_obj_len - sizeof(struct rsvp_object_header));
tptr+=rsvp_obj_len;
tlen-=rsvp_obj_len;
}
return 0;
subobj_tooshort:
ND_PRINT("%sERROR: sub-object is too short", indent);
return -1;
obj_tooshort:
ND_PRINT("%sERROR: object is too short", indent);
return -1;
invalid:
nd_print_invalid(ndo);
return -1;
}
void
rsvp_print(netdissect_options *ndo,
const u_char *pptr, u_int len)
{
const struct rsvp_common_header *rsvp_com_header;
uint8_t version_flags, msg_type;
const u_char *tptr;
u_short plen, tlen;
ndo->ndo_protocol = "rsvp";
tptr=pptr;
rsvp_com_header = (const struct rsvp_common_header *)pptr;
ND_TCHECK_SIZE(rsvp_com_header);
version_flags = GET_U_1(rsvp_com_header->version_flags);
/*
* Sanity checking of the header.
*/
if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
ND_PRINT("ERROR: RSVP version %u packet not supported",
RSVP_EXTRACT_VERSION(version_flags));
return;
}
msg_type = GET_U_1(rsvp_com_header->msg_type);
/* in non-verbose mode just lets print the basic Message Type*/
if (ndo->ndo_vflag < 1) {
ND_PRINT("RSVPv%u %s Message, length: %u",
RSVP_EXTRACT_VERSION(version_flags),
tok2str(rsvp_msg_type_values, "unknown (%u)",msg_type),
len);
return;
}
/* ok they seem to want to know everything - lets fully decode it */
plen = tlen = GET_BE_U_2(rsvp_com_header->length);
ND_PRINT("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
RSVP_EXTRACT_VERSION(version_flags),
tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
msg_type,
bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
tlen,
GET_U_1(rsvp_com_header->ttl),
GET_BE_U_2(rsvp_com_header->checksum));
if (tlen < sizeof(struct rsvp_common_header)) {
ND_PRINT("ERROR: common header too short %u < %zu", tlen,
sizeof(struct rsvp_common_header));
return;
}
tptr+=sizeof(struct rsvp_common_header);
tlen-=sizeof(struct rsvp_common_header);
switch(msg_type) {
case RSVP_MSGTYPE_BUNDLE:
/*
* Process each submessage in the bundle message.
* Bundle messages may not contain bundle submessages, so we don't
* need to handle bundle submessages specially.
*/
while(tlen > 0) {
const u_char *subpptr=tptr, *subtptr;
u_short subplen, subtlen;
subtptr=subpptr;
rsvp_com_header = (const struct rsvp_common_header *)subpptr;
ND_TCHECK_SIZE(rsvp_com_header);
version_flags = GET_U_1(rsvp_com_header->version_flags);
/*
* Sanity checking of the header.
*/
if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) {
ND_PRINT("ERROR: RSVP version %u packet not supported",
RSVP_EXTRACT_VERSION(version_flags));
return;
}
subplen = subtlen = GET_BE_U_2(rsvp_com_header->length);
msg_type = GET_U_1(rsvp_com_header->msg_type);
ND_PRINT("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x",
RSVP_EXTRACT_VERSION(version_flags),
tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type),
msg_type,
bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)),
subtlen,
GET_U_1(rsvp_com_header->ttl),
GET_BE_U_2(rsvp_com_header->checksum));
if (subtlen < sizeof(struct rsvp_common_header)) {
ND_PRINT("ERROR: common header too short %u < %zu", subtlen,
sizeof(struct rsvp_common_header));
return;
}
if (tlen < subtlen) {
ND_PRINT("ERROR: common header too large %u > %u", subtlen,
tlen);
return;
}
subtptr+=sizeof(struct rsvp_common_header);
subtlen-=sizeof(struct rsvp_common_header);
/*
* Print all objects in the submessage.
*/
if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1)
return;
tptr+=subtlen+sizeof(struct rsvp_common_header);
tlen-=subtlen+sizeof(struct rsvp_common_header);
}
break;
case RSVP_MSGTYPE_PATH:
case RSVP_MSGTYPE_RESV:
case RSVP_MSGTYPE_PATHERR:
case RSVP_MSGTYPE_RESVERR:
case RSVP_MSGTYPE_PATHTEAR:
case RSVP_MSGTYPE_RESVTEAR:
case RSVP_MSGTYPE_RESVCONF:
case RSVP_MSGTYPE_HELLO_OLD:
case RSVP_MSGTYPE_HELLO:
case RSVP_MSGTYPE_ACK:
case RSVP_MSGTYPE_SREFRESH:
/*
* Print all objects in the message.
*/
if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1)
return;
break;
default:
print_unknown_data(ndo, tptr, "\n\t ", tlen);
break;
}
}
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