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/* packet-rsvp.c
* Routines for RSVP packet disassembly
*
* (c) Copyright Ashok Narayanan <ashokn@cisco.com>
*
* $Id: packet-rsvp.c,v 1.80 2003/01/28 23:56:40 guy Exp $
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* Copyright 1998 Gerald Combs
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* NOTES
*
* This module defines routines to disassemble RSVP packets, as defined in
* RFC 2205. All objects from RFC2205 are supported, in IPv4 and IPv6 mode.
* In addition, the Integrated Services traffic specification objects
* defined in RFC2210 are also supported.
*
* IPv6 support is not completely tested
*
* Mar 3, 2000: Added support for MPLS/TE objects, as defined in
* <draft-ietf-mpls-rsvp-lsp-tunnel-04.txt>
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <glib.h>
#ifdef NEED_SNPRINTF_H
# include "snprintf.h"
#endif
#include <epan/tvbuff.h>
#include <epan/packet.h>
#include <prefs.h>
#include "in_cksum.h"
#include "etypes.h"
#include "ipproto.h"
#include "packet-rsvp.h"
#include "packet-ip.h"
#include "packet-frame.h"
static int proto_rsvp = -1;
/*
* The list of tree types
*/
enum {
TT_RSVP,
TT_HDR,
TT_SESSION,
TT_HOP,
TT_HOP_SUBOBJ,
TT_TIME_VALUES,
TT_ERROR,
TT_ERROR_SUBOBJ,
TT_SCOPE,
TT_STYLE,
TT_CONFIRM,
TT_SENDER_TEMPLATE,
TT_FILTER_SPEC,
TT_TSPEC,
TT_TSPEC_SUBTREE,
TT_FLOWSPEC,
TT_FLOWSPEC_SUBTREE,
TT_ADSPEC,
TT_ADSPEC_SUBTREE,
TT_INTEGRITY,
TT_INTEGRITY_FLAGS,
TT_DCLASS,
TT_LSP_TUNNEL_IF_ID,
TT_POLICY,
TT_MESSAGE_ID,
TT_MESSAGE_ID_ACK,
TT_MESSAGE_ID_LIST,
TT_LABEL,
TT_LABEL_REQUEST,
TT_SESSION_ATTRIBUTE,
TT_SESSION_ATTRIBUTE_FLAGS,
TT_HELLO_OBJ,
TT_EXPLICIT_ROUTE,
TT_EXPLICIT_ROUTE_SUBOBJ,
TT_RECORD_ROUTE,
TT_RECORD_ROUTE_SUBOBJ,
TT_RECORD_ROUTE_SUBOBJ_FLAGS,
TT_ADMIN_STATUS,
TT_ADMIN_STATUS_FLAGS,
TT_GEN_UNI,
TT_GEN_UNI_SUBOBJ,
TT_BUNDLE_COMPMSG,
TT_RESTART_CAP,
TT_PROTECTION_INFO,
TT_FAST_REROUTE,
TT_DETOUR,
TT_UNKNOWN_CLASS,
TT_MAX
};
static gint ett_treelist[TT_MAX];
static gint *ett_tree[TT_MAX];
#define TREE(X) ett_treelist[(X)]
/* Should we dissect bundle messages? */
static gboolean rsvp_bundle_dissect = TRUE;
/*
* RSVP message types.
* See
*
* http://www.iana.org/assignments/rsvp-parameters
*/
typedef enum {
RSVP_MSG_PATH=1, /* RFC 2205 */
RSVP_MSG_RESV, /* RFC 2205 */
RSVP_MSG_PERR, /* RFC 2205 */
RSVP_MSG_RERR, /* RFC 2205 */
RSVP_MSG_PTEAR, /* RFC 2205 */
RSVP_MSG_RTEAR, /* RFC 2205 */
RSVP_MSG_CONFIRM, /* XXX - DREQ, RFC 2745? */
/* 9 is DREP, RFC 2745 */
RSVP_MSG_RTEAR_CONFIRM=10, /* from Fred Baker at Cisco */
/* 11 is unassigned */
RSVP_MSG_BUNDLE = 12, /* RFC 2961 */
RSVP_MSG_ACK, /* RFC 2961 */
/* 14 is reserved */
RSVP_MSG_SREFRESH = 15, /* RFC 2961 */
/* 16, 17, 18, 19 not listed */
RSVP_MSG_HELLO = 20 /* RFC 3209 */
/* 25 is Integrity Challenge
RFC 2747, RFC 3097 */
/* 26 is Integrity Response
RFC 2747, RFC 3097 */
/* 66 is DSBM_willing [SBM] */
/* 67 is I_AM_DSBM [SBM] */
/* [SBM] is Subnet Bandwidth
Manager ID from July 1997 */
} rsvp_message_types;
static value_string message_type_vals[] = {
{RSVP_MSG_PATH, "PATH Message. "},
{RSVP_MSG_RESV, "RESV Message. "},
{RSVP_MSG_PERR, "PATH ERROR Message. "},
{RSVP_MSG_RERR, "RESV ERROR Message. "},
{RSVP_MSG_PTEAR, "PATH TEAR Message. "},
{RSVP_MSG_RTEAR, "RESV TEAR Message. "},
{RSVP_MSG_CONFIRM, "CONFIRM Message. "},
{RSVP_MSG_RTEAR_CONFIRM, "RESV TEAR CONFIRM Message. "},
{RSVP_MSG_BUNDLE, "BUNDLE Message. "},
{RSVP_MSG_ACK, "ACK Message. "},
{RSVP_MSG_SREFRESH, "SREFRESH Message. "},
{RSVP_MSG_HELLO, "HELLO Message. "},
{0, NULL}
};
/*
* RSVP classes
*/
#define MAX_RSVP_CLASS 15
enum rsvp_classes {
RSVP_CLASS_NULL=0,
RSVP_CLASS_SESSION,
RSVP_CLASS_HOP=3,
RSVP_CLASS_INTEGRITY,
RSVP_CLASS_TIME_VALUES,
RSVP_CLASS_ERROR,
RSVP_CLASS_SCOPE,
RSVP_CLASS_STYLE,
RSVP_CLASS_FLOWSPEC,
RSVP_CLASS_FILTER_SPEC,
RSVP_CLASS_SENDER_TEMPLATE,
RSVP_CLASS_SENDER_TSPEC,
RSVP_CLASS_ADSPEC,
RSVP_CLASS_POLICY,
RSVP_CLASS_CONFIRM,
RSVP_CLASS_LABEL,
RSVP_CLASS_LABEL_REQUEST=19,
RSVP_CLASS_EXPLICIT_ROUTE,
RSVP_CLASS_RECORD_ROUTE,
RSVP_CLASS_HELLO,
RSVP_CLASS_MESSAGE_ID,
RSVP_CLASS_MESSAGE_ID_ACK,
RSVP_CLASS_MESSAGE_ID_LIST,
RSVP_CLASS_RECOVERY_LABEL = 34,
RSVP_CLASS_UPSTREAM_LABEL,
RSVP_CLASS_LABEL_SET,
RSVP_CLASS_PROTECTION,
RSVP_CLASS_SUGGESTED_LABEL = 129,
RSVP_CLASS_ACCEPTABLE_LABEL_SET,
RSVP_CLASS_RESTART_CAP,
RSVP_CLASS_NOTIFY_REQUEST = 195,
RSVP_CLASS_ADMIN_STATUS,
RSVP_CLASS_SESSION_ATTRIBUTE = 207,
RSVP_CLASS_GENERALIZED_UNI,
RSVP_CLASS_DCLASS = 225,
RSVP_CLASS_LSP_TUNNEL_IF_ID = 227,
RSVP_CLASS_FAST_REROUTE = 228, /* TBD */
RSVP_CLASS_DETOUR = 229 /* TBD */
};
static value_string rsvp_class_vals[] = {
{RSVP_CLASS_NULL, "NULL object"},
{RSVP_CLASS_SESSION, "SESSION object"},
{RSVP_CLASS_HOP, "HOP object"},
{RSVP_CLASS_INTEGRITY, "INTEGRITY object"},
{RSVP_CLASS_TIME_VALUES, "TIME VALUES object"},
{RSVP_CLASS_ERROR, "ERROR object"},
{RSVP_CLASS_SCOPE, "SCOPE object"},
{RSVP_CLASS_STYLE, "STYLE object"},
{RSVP_CLASS_FLOWSPEC, "FLOWSPEC object"},
{RSVP_CLASS_FILTER_SPEC, "FILTER SPEC object"},
{RSVP_CLASS_SENDER_TEMPLATE, "SENDER TEMPLATE object"},
{RSVP_CLASS_SENDER_TSPEC, "SENDER TSPEC object"},
{RSVP_CLASS_ADSPEC, "ADSPEC object"},
{RSVP_CLASS_POLICY, "POLICY object"},
{RSVP_CLASS_CONFIRM, "CONFIRM object"},
{RSVP_CLASS_LABEL, "LABEL object"},
{RSVP_CLASS_LABEL_REQUEST, "LABEL REQUEST object"},
{RSVP_CLASS_EXPLICIT_ROUTE, "EXPLICIT ROUTE object"},
{RSVP_CLASS_RECORD_ROUTE, "RECORD ROUTE object"},
{RSVP_CLASS_SESSION_ATTRIBUTE, "SESSION ATTRIBUTE object"},
{RSVP_CLASS_MESSAGE_ID, "MESSAGE-ID object"},
{RSVP_CLASS_MESSAGE_ID_ACK, "MESSAGE-ID ACK/NACK object"},
{RSVP_CLASS_MESSAGE_ID_LIST, "MESSAGE-ID LIST object"},
{RSVP_CLASS_HELLO, "HELLO object"},
{RSVP_CLASS_RECOVERY_LABEL, "RECOVERY-LABEL object"},
{RSVP_CLASS_UPSTREAM_LABEL, "UPSTREAM-LABEL object"},
{RSVP_CLASS_LABEL_SET, "LABEL-SET object"},
{RSVP_CLASS_PROTECTION, "PROTECTION object"},
{RSVP_CLASS_SUGGESTED_LABEL, "SUGGESTED-LABEL object"},
{RSVP_CLASS_ACCEPTABLE_LABEL_SET, "ACCEPTABLE-LABEL-SET object"},
{RSVP_CLASS_RESTART_CAP, "RESTART-CAPABILITY object"},
{RSVP_CLASS_DCLASS, "DCLASS object"},
{RSVP_CLASS_LSP_TUNNEL_IF_ID, "LSP-TUNNEL INTERFACE-ID object"},
{RSVP_CLASS_NOTIFY_REQUEST, "NOTIFY-REQUEST object"},
{RSVP_CLASS_ADMIN_STATUS, "ADMIN-STATUS object"},
{RSVP_CLASS_GENERALIZED_UNI, "GENERALIZED-UNI object"},
{0, NULL}
};
/*
* RSVP error values
*/
enum rsvp_error_types {
RSVP_ERROR_CONFIRM = 0,
RSVP_ERROR_ADMISSION,
RSVP_ERROR_POLICY,
RSVP_ERROR_NO_PATH,
RSVP_ERROR_NO_SENDER,
RSVP_ERROR_CONFLICT_RESV_STYLE,
RSVP_ERROR_UNKNOWN_RESV_STYLE,
RSVP_ERROR_CONFLICT_DEST_PORTS,
RSVP_ERROR_CONFLICT_SRC_PORTS,
RSVP_ERROR_PREEMPTED=12,
RSVP_ERROR_UNKNOWN_CLASS,
RSVP_ERROR_UNKNOWN_C_TYPE,
RSVP_ERROR_TRAFFIC = 21,
RSVP_ERROR_TRAFFIC_SYSTEM,
RSVP_ERROR_SYSTEM,
RSVP_ERROR_ROUTING,
RSVP_ERROR_NOTIFY
};
static value_string rsvp_error_vals[] = {
{RSVP_ERROR_CONFIRM, "Confirmation"},
{RSVP_ERROR_ADMISSION, "Admission Control Failure "},
{RSVP_ERROR_POLICY, "Policy Control Failure"},
{RSVP_ERROR_NO_PATH, "No PATH information for this RESV message"},
{RSVP_ERROR_NO_SENDER, "No sender information for this RESV message"},
{RSVP_ERROR_CONFLICT_RESV_STYLE, "Conflicting reservation styles"},
{RSVP_ERROR_UNKNOWN_RESV_STYLE, "Unknown reservation style"},
{RSVP_ERROR_CONFLICT_DEST_PORTS, "Conflicting destination ports"},
{RSVP_ERROR_CONFLICT_SRC_PORTS, "Conflicting source ports"},
{RSVP_ERROR_PREEMPTED, "Service preempted"},
{RSVP_ERROR_UNKNOWN_CLASS, "Unknown object class"},
{RSVP_ERROR_UNKNOWN_C_TYPE, "Unknown object C-type"},
{RSVP_ERROR_TRAFFIC, "Traffic Control Error"},
{RSVP_ERROR_TRAFFIC_SYSTEM, "Traffic Control System Error"},
{RSVP_ERROR_SYSTEM, "RSVP System Error"},
{RSVP_ERROR_ROUTING, "Routing Error"},
{RSVP_ERROR_NOTIFY, "RSVP Notify Error"},
{0, NULL}
};
/*
* Defines the reservation style plus style-specific information that
* is not a FLOWSPEC or FILTER_SPEC object, in a RESV message.
*/
#define RSVP_DISTINCT (1 << 3)
#define RSVP_SHARED (2 << 3)
#define RSVP_SHARING_MASK (RSVP_DISTINCT | RSVP_SHARED)
#define RSVP_SCOPE_WILD 1
#define RSVP_SCOPE_EXPLICIT 2
#define RSVP_SCOPE_MASK 0x07
#define RSVP_WF (RSVP_SHARED | RSVP_SCOPE_WILD)
#define RSVP_FF (RSVP_DISTINCT | RSVP_SCOPE_EXPLICIT)
#define RSVP_SE (RSVP_SHARED | RSVP_SCOPE_EXPLICIT)
static value_string style_vals[] = {
{ RSVP_WF, "Wildcard Filter" },
{ RSVP_FF, "Fixed Filter" },
{ RSVP_SE, "Shared-Explicit" },
{ 0, NULL }
};
enum {
RSVP_SESSION_TYPE_IPV4 = 1,
RSVP_SESSION_TYPE_IPV6,
RSVP_SESSION_TYPE_IPV4_LSP = 7,
RSVP_SESSION_TYPE_IPV6_LSP,
RSVP_SESSION_TYPE_IPV4_UNI = 9
};
/*
* Defines a desired QoS, in a RESV message.
*/
enum qos_service_type {
QOS_QUALITATIVE = 128, /* Qualitative service */
QOS_NULL = 6, /* Null service (RFC2997) */
QOS_CONTROLLED_LOAD= 5, /* Controlled Load Service */
QOS_GUARANTEED = 2, /* Guaranteed service */
QOS_TSPEC = 1 /* Traffic specification */
};
static value_string qos_vals[] = {
{ QOS_QUALITATIVE, "Qualitative QoS" },
{ QOS_NULL, "Null-Service QoS" },
{ QOS_CONTROLLED_LOAD, "Controlled-load QoS" },
{ QOS_GUARANTEED, "Guaranteed rate QoS" },
{ QOS_TSPEC, "Traffic specification" },
{ 0, NULL }
};
static value_string svc_vals[] = {
{ 126, "Compression Hint" },
{ 127, "Token bucket" },
{ 128, "Null Service" },
{ 130, "Guaranteed-rate RSpec" },
{ 0, NULL }
};
enum rsvp_spec_types { INTSRV = 2 };
enum intsrv_services {
INTSRV_GENERAL = 1,
INTSRV_GTD = 2,
INTSRV_CLOAD = 5,
INTSRV_NULL = 6,
INTSRV_QUALITATIVE = 128
};
static value_string intsrv_services_str[] = {
{INTSRV_GENERAL, "Default General Parameters"},
{INTSRV_GTD, "Guaranteed Rate"},
{INTSRV_CLOAD, "Controlled Load"},
{INTSRV_NULL, "Null Service"},
{INTSRV_QUALITATIVE, "Null Service"},
{ 0, NULL }
};
#if 0
enum intsrv_field_name {
INTSRV_NON_IS_HOPS = 1, INTSRV_COMPOSED_NON_IS_HOPS,
INTSRV_IS_HOPS, INTSRV_COMPOSED_IS_HOPS,
INTSRV_PATH_BANDWIDTH, INTSRV_MIN_PATH_BANDWIDTH,
INTSRV_IF_LATENCY, INTSRV_PATH_LATENCY,
INTSRV_MTU, INTSRV_COMPOSED_MTU,
INTSRV_TOKEN_BUCKET_TSPEC = 127,
INTSRV_QUALITATIVE_TSPEC = 128,
INTSRV_GTD_RSPEC = 130,
INTSRV_DELAY = 131, /* Gtd Parameter C - Max Delay Bound - bytes */
INTSRV_MAX_JITTER, /* Gtd Parameter D - Max Jitter */
INTSRV_E2E_DELAY, /* Gtd Parameter Ctot */
INTSRV_E2E_MAX_JITTER, /* Gtd Parameter Dtot */
INTSRV_SHP_DELAY, /* Gtd Parameter Csum */
INTSRV_SHP_MAX_JITTER /* Gtd Parameter Dsum */
};
#endif
static value_string adspec_params[] = {
{4, "IS Hop Count"},
{6, "Path b/w estimate"},
{8, "Minimum path latency"},
{10, "Composed MTU"},
{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 }
};
const value_string gmpls_lsp_enc_str[] = {
{ 1, "Packet"},
{ 2, "Ethernet v2/DIX"},
{ 3, "ANSI PDH"},
{ 5, "SONET/SDH"},
{ 7, "Digital Wrapper"},
{ 8, "Lambda (photonic)"},
{ 9, "Fiber"},
{11, "FiberChannel"},
{ 0, NULL }
};
const value_string gmpls_switching_type_str[] = {
{ 1, "Packet-Switch Capable-1 (PSC-1)"},
{ 2, "Packet-Switch Capable-2 (PSC-2)"},
{ 3, "Packet-Switch Capable-3 (PSC-3)"},
{ 4, "Packet-Switch Capable-4 (PSC-4)"},
{ 51, "Layer-2 Switch Capable (L2SC)"},
{100, "Time-Division-Multiplex Capable (TDM)"},
{150, "Lambda-Switch Capable (LSC)"},
{200, "Fiber-Switch Capable (FSC)"},
{ 0, NULL }
};
static const value_string gmpls_gpid_str[] = {
{ 5, "Asynchronous mapping of E3 (SDH)"},
{ 8, "Bit synchronous mapping of E3 (SDH)"},
{ 9, "Byte synchronous mapping of E3 (SDH)"},
{10, "Asynchronous mapping of DS2/T2 (SDH)"},
{11, "Bit synchronous mapping of DS2/T2 (SONET, SDH)"},
{13, "Asynchronous mapping of E1 (SONET, SDH)"},
{14, "Byte synchronous mapping of E1 (SONET, SDH)"},
{15, "Byte synchronous mapping of 31 * DS0 (SONET, SDH)"},
{16, "Asynchronous mapping of DS1/T1 (SONET, SDH)"},
{17, "Bit synchronous mapping of DS1/T1 (SONET, SDH)"},
{18, "Byte synchronous mapping of DS1/T1 (SONET, SDH)"},
{19, "VC-11 in VC-12 (SDH)"},
{22, "DS1 SF Asynchronous (SONET)"},
{23, "DS1 ESF Asynchronous (SONET)"},
{24, "DS3 M23 Asynchronous (SONET)"},
{25, "DS3 C-Bit Parity Asynchronous (SONET)"},
{26, "VT/LOVC (SONET, SDH)"},
{27, "STS SPE/HOVC (SONET, SDH)"},
{28, "POS - No Scrambling, 16 bit CRC (SONET, SDH)"},
{29, "POS - No Scrambling, 32 bit CRC (SONET, SDH)"},
{30, "POS - Scrambling, 16 bit CRC (SONET, SDH)"},
{31, "POS - Scrambling, 32 bit CRC (SONET, SDH)"},
{32, "ATM Mapping (SONET, SDH)"},
{33, "Ethernet (SDH, Lambda, Fiber)"},
{34, "SDH (Lambda, Fiber)"},
{35, "SONET (Lambda, Fiber)"},
{36, "Digital Wrapper (Lambda, Fiber)"},
{37, "Lambda (Fiber)"},
{38, "ETSI PDH (SDH)"},
{39, "ANSI PDH (SONET, SDH)"},
{40, "Link Access Protocol SDH: LAPS - X.85 and X.86 (SONET, SDH)"},
{41, "FDDI (SONET, SDH, Lambda, Fiber)"},
{42, "DQDB: ETSI ETS 300 216 (SONET, SDH)"},
{43, "FiberChannel-3 Services (FiberChannel)"},
{44, "HDLC"},
{45, "Ethernet V2/DIX (only)"},
{46, "Ethernet 802.3 (only)"},
{ 0, NULL },
};
static const value_string gmpls_sonet_signal_type_str[] = {
{ 1, "VT1.5 SPE / VC-11"},
{ 2, "VT2 SPE / VC-12"},
{ 3, "VT3 SPE"},
{ 4, "VT6 SPE / VC-2"},
{ 5, "STS-1 SPE / VC-3"},
{ 6, "STS-3c SPE / VC-4"},
{ 7, "STS-1 / STM-0 (transp)"},
{ 8, "STS-3 / STM-1 (transp)"},
{ 9, "STS-12 / STM-4 (transp)"},
{10, "STS-48 / STM-16 (transp)"},
{11, "STS-192 / STM-64 (transp)"},
{12, "STS-768 / STM-256 (transp)"},
/* Extended non-SONET signal types */
{13, "VTG / TUG-2"},
{14, "TUG-3"},
{15, "STSG-3 / AUG-1"},
{16, "STSG-12 / AUG-4"},
{17, "STSG-48 / AUG-16"},
{18, "STSG-192 / AUG-64"},
{19, "STSG-768 / AUG-256"},
};
static const value_string ouni_guni_diversity_str[] = {
{1, "Node Diverse"},
{2, "Link Diverse"},
{3, "Shared-Risk Link Group Diverse"},
{4, "Shared Path"},
};
/* -------------------- Stuff for MPLS/TE objects -------------------- */
static const value_string proto_vals[] = { {IP_PROTO_ICMP, "ICMP"},
{IP_PROTO_IGMP, "IGMP"},
{IP_PROTO_TCP, "TCP" },
{IP_PROTO_UDP, "UDP" },
{IP_PROTO_OSPF, "OSPF"},
{0, NULL } };
/* Filter keys */
enum rsvp_filter_keys {
/* Message types */
RSVPF_MSG, /* Message type */
/* Shorthand for message types */
RSVPF_PATH,
RSVPF_RESV,
RSVPF_PATHERR,
RSVPF_RESVERR,
RSVPF_PATHTEAR,
RSVPF_RESVTEAR,
RSVPF_RCONFIRM,
RSVPF_JUNK_MSG8,
RSVPF_JUNK_MSG9,
RSVPF_RTEARCONFIRM,
RSVPF_JUNK11,
RSVPF_BUNDLE,
RSVPF_ACK,
RSVPF_JUNK14,
RSVPF_SREFRESH,
RSVPF_JUNK16,
RSVPF_JUNK17,
RSVPF_JUNK18,
RSVPF_JUNK19,
RSVPF_HELLO,
/* Does the message contain an object of this type? */
RSVPF_OBJECT,
/* Object present shorthands */
RSVPF_SESSION,
RSVPF_DUMMY_1,
RSVPF_HOP,
RSVPF_INTEGRITY,
RSVPF_TIME_VALUES,
RSVPF_ERROR,
RSVPF_SCOPE,
RSVPF_STYLE,
RSVPF_FLOWSPEC,
RSVPF_FILTER_SPEC,
RSVPF_SENDER,
RSVPF_TSPEC,
RSVPF_ADSPEC,
RSVPF_POLICY,
RSVPF_CONFIRM,
RSVPF_LABEL,
RSVPF_DUMMY_2,
RSVPF_DUMMY_3,
RSVPF_LABEL_REQUEST,
RSVPF_EXPLICIT_ROUTE,
RSVPF_RECORD_ROUTE,
RSVPF_HELLO_OBJ,
RSVPF_MESSAGE_ID,
RSVPF_MESSAGE_ID_ACK,
RSVPF_MESSAGE_ID_LIST,
RSVPF_RECOVERY_LABEL,
RSVPF_UPSTREAM_LABEL,
RSVPF_LABEL_SET,
RSVPF_PROTECTION,
RSVPF_SUGGESTED_LABEL,
RSVPF_ACCEPTABLE_LABEL_SET,
RSVPF_RESTART_CAP,
RSVPF_SESSION_ATTRIBUTE,
RSVPF_DCLASS,
RSVPF_LSP_TUNNEL_IF_ID,
RSVPF_NOTIFY_REQUEST,
RSVPF_ADMIN_STATUS,
RSVPF_GENERALIZED_UNI,
RSVPF_UNKNOWN_OBJ,
/* Session object */
RSVPF_SESSION_IP,
RSVPF_SESSION_PROTO,
RSVPF_SESSION_PORT,
RSVPF_SESSION_TUNNEL_ID,
RSVPF_SESSION_EXT_TUNNEL_ID,
/* Sender template */
RSVPF_SENDER_IP,
RSVPF_SENDER_PORT,
RSVPF_SENDER_LSP_ID,
/* Sentinel */
RSVPF_MAX
};
static int rsvp_filter[RSVPF_MAX];
static hf_register_info rsvpf_info[] = {
/* Message type number */
{&rsvp_filter[RSVPF_MSG],
{ "Message Type", "rsvp.msg", FT_UINT8, BASE_DEC, VALS(message_type_vals), 0x0,
"", HFILL }},
/* Message type shorthands */
{&rsvp_filter[RSVPF_PATH],
{ "Path Message", "rsvp.path", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_RESV],
{ "Resv Message", "rsvp.resv", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_PATHERR],
{ "Path Error Message", "rsvp.perr", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_RESVERR],
{ "Resv Error Message", "rsvp.rerr", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_PATHTEAR],
{ "Path Tear Message", "rsvp.ptear", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_RESVTEAR],
{ "Resv Tear Message", "rsvp.rtear", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_RCONFIRM],
{ "Resv Confirm Message", "rsvp.resvconf", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_RTEARCONFIRM],
{ "Resv Tear Confirm Message", "rsvp.rtearconf", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_BUNDLE],
{ "Bundle Message", "rsvp.bundle", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_ACK],
{ "Ack Message", "rsvp.ack", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SREFRESH],
{ "Srefresh Message", "rsvp.srefresh", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_HELLO],
{ "HELLO Message", "rsvp.hello", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
"", HFILL }},
/* Object class */
{&rsvp_filter[RSVPF_OBJECT],
{ "Object class", "rsvp.object", FT_UINT8, BASE_DEC, VALS(rsvp_class_vals), 0x0,
"", HFILL }},
/* Object present shorthands */
{&rsvp_filter[RSVPF_SESSION],
{ "SESSION", "rsvp.session", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_HOP],
{ "HOP", "rsvp.hop", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_HELLO_OBJ],
{ "HELLO Request/Ack", "rsvp.hello_obj", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_INTEGRITY],
{ "INTEGRITY", "rsvp.integrity", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_TIME_VALUES],
{ "TIME VALUES", "rsvp.time", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_ERROR],
{ "ERROR", "rsvp.error", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SCOPE],
{ "SCOPE", "rsvp.scope", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_STYLE],
{ "STYLE", "rsvp.style", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_FLOWSPEC],
{ "FLOWSPEC", "rsvp.flowspec", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_FILTER_SPEC],
{ "FILTERSPEC", "rsvp.filter", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SENDER],
{ "SENDER TEMPLATE", "rsvp.sender", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_TSPEC],
{ "SENDER TSPEC", "rsvp.tspec", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_ADSPEC],
{ "ADSPEC", "rsvp.adspec", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_POLICY],
{ "POLICY", "rsvp.policy", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_CONFIRM],
{ "CONFIRM", "rsvp.confirm", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_LABEL],
{ "LABEL", "rsvp.label", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_RECOVERY_LABEL],
{ "RECOVERY LABEL", "rsvp.recovery_label", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_UPSTREAM_LABEL],
{ "UPSTREAM LABEL", "rsvp.upstream_label", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SUGGESTED_LABEL],
{ "SUGGESTED LABEL", "rsvp.suggested_label", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_LABEL_SET],
{ "RESTRICTED LABEL SET", "rsvp.label_set", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_ACCEPTABLE_LABEL_SET],
{ "ACCEPTABLE LABEL SET", "rsvp.acceptable_label_set", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_PROTECTION],
{ "PROTECTION", "rsvp.protection", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_RESTART_CAP],
{ "RESTART CAPABILITY", "rsvp.restart", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_LABEL_REQUEST],
{ "LABEL REQUEST", "rsvp.label_request", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SESSION_ATTRIBUTE],
{ "SESSION ATTRIBUTE", "rsvp.session_attribute", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_EXPLICIT_ROUTE],
{ "EXPLICIT ROUTE", "rsvp.explicit_route", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_RECORD_ROUTE],
{ "RECORD ROUTE", "rsvp.record_route", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_MESSAGE_ID],
{ "MESSAGE-ID", "rsvp.msgid", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_MESSAGE_ID_ACK],
{ "MESSAGE-ID ACK", "rsvp.ack", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_MESSAGE_ID_LIST],
{ "MESSAGE-ID LIST", "rsvp.msgid_list", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_HELLO_OBJ],
{ "HELLO", "rsvp.hello", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_DCLASS],
{ "DCLASS", "rsvp.dclass", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_LSP_TUNNEL_IF_ID],
{ "LSP INTERFACE-ID", "rsvp.lsp_tunnel_if_id", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_ADMIN_STATUS],
{ "ADMIN STATUS", "rsvp.admin_status", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_NOTIFY_REQUEST],
{ "NOTIFY REQUEST", "rsvp.notify_request", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_GENERALIZED_UNI],
{ "GENERALIZED UNI", "rsvp.generalized_uni", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_UNKNOWN_OBJ],
{ "Unknown object", "rsvp.obj_unknown", FT_NONE, BASE_NONE, NULL, 0x0,
"", HFILL }},
/* Session fields */
{&rsvp_filter[RSVPF_SESSION_IP],
{ "Destination address", "rsvp.session.ip", FT_IPv4, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SESSION_PORT],
{ "Port number", "rsvp.session.port", FT_UINT16, BASE_DEC, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SESSION_PROTO],
{ "Protocol", "rsvp.session.proto", FT_UINT8, BASE_DEC, VALS(proto_vals), 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SESSION_TUNNEL_ID],
{ "Tunnel ID", "rsvp.session.tunnel_id", FT_UINT16, BASE_DEC, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SESSION_EXT_TUNNEL_ID],
{ "Extended tunnel ID", "rsvp.session.ext_tunnel_id", FT_UINT32, BASE_DEC, NULL, 0x0,
"", HFILL }},
/* Sender template/Filterspec fields */
{&rsvp_filter[RSVPF_SENDER_IP],
{ "Sender IPv4 address", "rsvp.sender.ip", FT_IPv4, BASE_NONE, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SENDER_PORT],
{ "Sender port number", "rsvp.sender.port", FT_UINT16, BASE_DEC, NULL, 0x0,
"", HFILL }},
{&rsvp_filter[RSVPF_SENDER_LSP_ID],
{ "Sender LSP ID", "rsvp.sender.lsp_id", FT_UINT16, BASE_DEC, NULL, 0x0,
"", HFILL }}
};
static inline int rsvp_class_to_filter_num(int classnum)
{
switch(classnum) {
case RSVP_CLASS_SESSION :
case RSVP_CLASS_HOP :
case RSVP_CLASS_INTEGRITY :
case RSVP_CLASS_TIME_VALUES :
case RSVP_CLASS_ERROR :
case RSVP_CLASS_SCOPE :
case RSVP_CLASS_STYLE :
case RSVP_CLASS_FLOWSPEC :
case RSVP_CLASS_FILTER_SPEC :
case RSVP_CLASS_SENDER_TEMPLATE :
case RSVP_CLASS_SENDER_TSPEC :
case RSVP_CLASS_ADSPEC :
case RSVP_CLASS_POLICY :
case RSVP_CLASS_CONFIRM :
case RSVP_CLASS_LABEL :
case RSVP_CLASS_LABEL_REQUEST :
case RSVP_CLASS_HELLO :
case RSVP_CLASS_EXPLICIT_ROUTE :
case RSVP_CLASS_RECORD_ROUTE :
case RSVP_CLASS_MESSAGE_ID :
case RSVP_CLASS_MESSAGE_ID_ACK :
case RSVP_CLASS_MESSAGE_ID_LIST :
return classnum + RSVPF_OBJECT;
break;
case RSVP_CLASS_RECOVERY_LABEL :
case RSVP_CLASS_UPSTREAM_LABEL :
case RSVP_CLASS_LABEL_SET :
case RSVP_CLASS_PROTECTION :
return RSVPF_RECOVERY_LABEL + (classnum - RSVP_CLASS_RECOVERY_LABEL);
case RSVP_CLASS_SUGGESTED_LABEL :
case RSVP_CLASS_ACCEPTABLE_LABEL_SET :
case RSVP_CLASS_RESTART_CAP :
return RSVPF_SUGGESTED_LABEL + (classnum - RSVP_CLASS_SUGGESTED_LABEL);
case RSVP_CLASS_NOTIFY_REQUEST :
return RSVPF_NOTIFY_REQUEST;
case RSVP_CLASS_ADMIN_STATUS :
return RSVPF_ADMIN_STATUS;
case RSVP_CLASS_SESSION_ATTRIBUTE :
return RSVPF_SESSION_ATTRIBUTE;
case RSVP_CLASS_GENERALIZED_UNI :
return RSVPF_GENERALIZED_UNI;
case RSVP_CLASS_DCLASS :
return RSVPF_DCLASS;
case RSVP_CLASS_LSP_TUNNEL_IF_ID :
return RSVPF_LSP_TUNNEL_IF_ID;
default:
return RSVPF_UNKNOWN_OBJ;
}
}
static void
find_rsvp_session_tempfilt(tvbuff_t *tvb, int hdr_offset, int *session_offp, int *tempfilt_offp)
{
int s_off = 0, t_off = 0;
int len, off;
guint16 obj_length;
if (!tvb_bytes_exist(tvb, hdr_offset+6, 2))
goto done;
len = tvb_get_ntohs(tvb, hdr_offset+6) + hdr_offset;
off = hdr_offset + 8;
for (off = hdr_offset + 8; off < len && tvb_bytes_exist(tvb, off, 3);
off += obj_length) {
obj_length = tvb_get_ntohs(tvb, off);
if (obj_length == 0)
break;
switch(tvb_get_guint8(tvb, off+2)) {
case RSVP_CLASS_SESSION:
s_off = off;
break;
case RSVP_CLASS_SENDER_TEMPLATE:
case RSVP_CLASS_FILTER_SPEC:
t_off = off;
break;
default:
break;
}
}
done:
if (session_offp) *session_offp = s_off;
if (tempfilt_offp) *tempfilt_offp = t_off;
}
static char *summary_session (tvbuff_t *tvb, int offset)
{
static char buf[80];
switch(tvb_get_guint8(tvb, offset+3)) {
case RSVP_SESSION_TYPE_IPV4:
snprintf(buf, 80, "SESSION: IPv4, Destination %s, Protocol %d, Port %d. ",
ip_to_str(tvb_get_ptr(tvb, offset+4, 4)),
tvb_get_guint8(tvb, offset+8),
tvb_get_ntohs(tvb, offset+10));
break;
case RSVP_SESSION_TYPE_IPV4_LSP:
snprintf(buf, 80, "SESSION: IPv4-LSP, Destination %s, Tunnel ID %d, Ext ID %0x. ",
ip_to_str(tvb_get_ptr(tvb, offset+4, 4)),
tvb_get_ntohs(tvb, offset+10),
tvb_get_ntohl(tvb, offset+12));
break;
case RSVP_SESSION_TYPE_IPV4_UNI:
snprintf(buf, 80, "SESSION: IPv4-UNI, Destination %s, Tunnel ID %d, Ext Address %s. ",
ip_to_str(tvb_get_ptr(tvb, offset+4, 4)),
tvb_get_ntohs(tvb, offset+10),
ip_to_str(tvb_get_ptr(tvb, offset+12, 4)));
break;
default:
snprintf(buf, 80, "SESSION: Type %d. ", tvb_get_guint8(tvb, offset+3));
}
return buf;
}
static char *summary_template (tvbuff_t *tvb, int offset)
{
static char buf[80];
char *objtype;
if (tvb_get_guint8(tvb, offset+2) == RSVP_CLASS_FILTER_SPEC)
objtype = "FILTERSPEC";
else
objtype = "SENDER TEMPLATE";
switch(tvb_get_guint8(tvb, offset+3)) {
case 1:
snprintf(buf, 80, "%s: IPv4, Sender %s, Port %d. ", objtype,
ip_to_str(tvb_get_ptr(tvb, offset+4, 4)),
tvb_get_ntohs(tvb, offset+10));
break;
case 7:
snprintf(buf, 80, "%s: IPv4-LSP, Tunnel Source: %s, LSP ID: %d. ", objtype,
ip_to_str(tvb_get_ptr(tvb, offset+4, 4)),
tvb_get_ntohs(tvb, offset+10));
break;
default:
snprintf(buf, 80, "%s: Type %d. ", objtype, tvb_get_guint8(tvb, offset+3));
}
return buf;
}
/*------------------------------------------------------------------------------
* SESSION
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_session (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_SESSION));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_item_set_text(ti, summary_session(tvb, offset));
switch(type) {
case RSVP_SESSION_TYPE_IPV4:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SESSION_IP],
tvb, offset2, 4, FALSE);
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SESSION_PROTO], tvb,
offset2+4, 1, FALSE);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+5, 1,
"Flags: %x",
tvb_get_guint8(tvb, offset2+5));
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SESSION_PORT], tvb,
offset2+6, 2, FALSE);
break;
case RSVP_SESSION_TYPE_IPV6:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 2 - IPv6");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 16,
"Destination address: %s",
ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, offset2, 16)));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+16, 1,
"Protocol: %u",
tvb_get_guint8(tvb, offset2+16));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+17, 1,
"Flags: %x",
tvb_get_guint8(tvb, offset2+17));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+18, 2,
"Destination port: %u",
tvb_get_ntohs(tvb, offset2+18));
break;
case RSVP_SESSION_TYPE_IPV4_LSP:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 7 - IPv4 LSP");
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SESSION_IP],
tvb, offset2, 4, FALSE);
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SESSION_TUNNEL_ID],
tvb, offset2+6, 2, FALSE);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+8, 4,
"Extended Tunnel ID: %u (%s)",
tvb_get_ntohl(tvb, offset2+8),
ip_to_str(tvb_get_ptr(tvb, offset2+8, 4)));
proto_tree_add_item_hidden(rsvp_object_tree,
rsvp_filter[RSVPF_SESSION_EXT_TUNNEL_ID],
tvb, offset2+8, 4, FALSE);
break;
case RSVP_SESSION_TYPE_IPV4_UNI:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 9 - IPv4 UNI");
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SESSION_IP],
tvb, offset2, 4, FALSE);
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SESSION_TUNNEL_ID],
tvb, offset2+6, 2, FALSE);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+8, 4,
"Extended IPv4 Address: %s",
ip_to_str(tvb_get_ptr(tvb, offset2+8, 4)));
proto_tree_add_item_hidden(rsvp_object_tree,
rsvp_filter[RSVPF_SESSION_EXT_TUNNEL_ID],
tvb, offset2+8, 4, FALSE);
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length-4,
"Data (%d bytes)", obj_length-4);
}
}
/*------------------------------------------------------------------------------
* TLVs for HOP, ERROR and other IF_ID extended objects
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_ifid_tlv (proto_tree *ti, proto_tree *rsvp_object_tree,
tvbuff_t *tvb, int offset, int obj_length,
int subtree_type)
{
guint16 tlv_off;
guint16 tlv_type;
guint16 tlv_len;
char *ifindex_name;
proto_tree *rsvp_ifid_subtree, *ti2;
int offset2 = offset + 4;
for (tlv_off = 0; tlv_off < obj_length - 12; ) {
tlv_type = tvb_get_ntohs(tvb, offset+tlv_off);
tlv_len = tvb_get_ntohs(tvb, offset+tlv_off+2);
switch(tlv_type) {
case 1:
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset+tlv_off, 8,
"IPv4 TLV - %s",
ip_to_str(tvb_get_ptr(tvb, offset+tlv_off+4, 4)));
rsvp_ifid_subtree = proto_item_add_subtree(ti2, subtree_type);
proto_tree_add_text(rsvp_ifid_subtree, tvb, offset+tlv_off, 2,
"Type: 1 (IPv4)");
proto_tree_add_text(rsvp_ifid_subtree, tvb, offset+tlv_off+2, 2,
"Length: %u",
tvb_get_ntohs(tvb, offset+tlv_off+2));
proto_tree_add_text(rsvp_ifid_subtree, tvb, offset+tlv_off+4, 4,
"IPv4 address: %s",
ip_to_str(tvb_get_ptr(tvb, offset+tlv_off+4, 4)));
proto_item_append_text(ti, "Data IPv4: %s. ",
ip_to_str(tvb_get_ptr(tvb, offset+tlv_off+4, 4)));
break;
case 3:
ifindex_name = "";
goto ifid_ifindex;
case 4:
ifindex_name = " Forward";
goto ifid_ifindex;
case 5:
ifindex_name = " Reverse";
ifid_ifindex:
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset+tlv_off, 12,
"Interface-Index%s TLV - %s, %d",
ifindex_name,
ip_to_str(tvb_get_ptr(tvb, offset+tlv_off+4, 4)),
tvb_get_ntohl(tvb, offset+tlv_off+8));
rsvp_ifid_subtree = proto_item_add_subtree(ti2, subtree_type);
proto_tree_add_text(rsvp_ifid_subtree, tvb, offset+tlv_off, 2,
"Type: %d (Interface Index%s)", tlv_type, ifindex_name);
proto_tree_add_text(rsvp_ifid_subtree, tvb, offset+tlv_off+2, 2,
"Length: %u",
tvb_get_ntohs(tvb, offset+tlv_off+2));
proto_tree_add_text(rsvp_ifid_subtree, tvb, offset+tlv_off+4, 4,
"IPv4 address: %s",
ip_to_str(tvb_get_ptr(tvb, offset+tlv_off+4, 4)));
proto_tree_add_text(rsvp_ifid_subtree, tvb, offset+tlv_off+8, 4,
"Interface-ID: %d",
tvb_get_ntohl(tvb, offset+tlv_off+8));
proto_item_append_text(ti, "Data If-Index%s: %s, %d. ", ifindex_name,
ip_to_str(tvb_get_ptr(tvb, offset+tlv_off+4, 4)),
tvb_get_ntohl(tvb, offset+tlv_off+8));
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 4,
"Logical interface: %u",
tvb_get_ntohl(tvb, offset2+4));
}
tlv_off += tlv_len;
}
}
/*------------------------------------------------------------------------------
* HOP
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_hop (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree= proto_item_add_subtree(ti, TREE(TT_HOP));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Neighbor address: %s",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 4,
"Logical interface: %u",
tvb_get_ntohl(tvb, offset2+4));
proto_item_set_text(ti, "HOP: IPv4, %s",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
break;
case 2:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 2 - IPv6");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 16,
"Neighbor address: %s",
ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, offset2, 16)));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+16, 4,
"Logical interface: 0x%08x",
tvb_get_ntohl(tvb, offset2+16));
break;
case 3:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 3 - IPv4 IF-ID");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Neighbor address: %s",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 4,
"Logical interface: %u",
tvb_get_ntohl(tvb, offset2+4));
proto_item_set_text(ti, "HOP: IPv4 IF-ID. Control IPv4: %s. ",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
dissect_rsvp_ifid_tlv(ti, rsvp_object_tree, tvb, offset+12, obj_length,
TREE(TT_HOP_SUBOBJ));
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
}
}
/*------------------------------------------------------------------------------
* TIME VALUES
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_time_values (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_TIME_VALUES));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Refresh interval: %u ms (%u seconds)",
tvb_get_ntohl(tvb, offset2),
tvb_get_ntohl(tvb, offset2)/1000);
proto_item_set_text(ti, "TIME VALUES: %d ms",
tvb_get_ntohl(tvb, offset2));
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* ERROR
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_error (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_ERROR));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 1: {
guint8 error_code;
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Error node: %s",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 1,
"Flags: 0x%02x",
tvb_get_guint8(tvb, offset2+4));
error_code = tvb_get_guint8(tvb, offset2+5);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+5, 1,
"Error code: %u - %s", error_code,
val_to_str(error_code, rsvp_error_vals, "Unknown (%d)"));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+6, 2,
"Error value: %u",
tvb_get_ntohs(tvb, offset2+6));
proto_item_set_text(ti, "ERROR: IPv4, Error code: %s, Value: %d, Error Node: %s",
val_to_str(error_code, rsvp_error_vals, "Unknown (%d)"),
tvb_get_ntohs(tvb, offset2+6),
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
break;
}
case 2: {
guint8 error_code;
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 2 - IPv6");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 16,
"Error node: %s",
ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, offset2, 16)));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+16, 1,
"Flags: 0x%02x",
tvb_get_guint8(tvb, offset2+16));
error_code = tvb_get_guint8(tvb, offset2+17);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+17, 1,
"Error code: %u - %s", error_code,
val_to_str(error_code, rsvp_error_vals, "Unknown"));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+18, 2,
"Error value: %u",
tvb_get_ntohs(tvb, offset2+18));
break;
}
case 3:
{
guint8 error_code;
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 3 - IPv4 IF-ID");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Error node: %s",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 1,
"Flags: 0x%02x",
tvb_get_guint8(tvb, offset2+4));
error_code = tvb_get_guint8(tvb, offset2+5);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+5, 1,
"Error code: %u - %s", error_code,
val_to_str(error_code, rsvp_error_vals, "Unknown (%d)"));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+6, 2,
"Error value: %u",
tvb_get_ntohs(tvb, offset2+6));
proto_item_set_text(ti, "ERROR: IPv4 IF-ID, Error code: %s, Value: %d, Control Node: %s. ",
val_to_str(error_code, rsvp_error_vals, "Unknown (%d)"),
tvb_get_ntohs(tvb, offset2+6),
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
dissect_rsvp_ifid_tlv(ti, rsvp_object_tree, tvb, offset+12, obj_length,
TREE(TT_ERROR_SUBOBJ));
break;
}
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
}
}
/*------------------------------------------------------------------------------
* SCOPE
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_scope (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
int mylen;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_SCOPE));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
mylen = obj_length - 4;
switch(type) {
case 1: {
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1 - IPv4");
while (mylen > 0) {
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"IPv4 Address: %s",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
offset2 += 4;
mylen -= 4;
}
break;
}
case 2: {
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 2 - IPv6");
while (mylen > 0) {
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 16,
"IPv6 Address: %s",
ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, offset2, 16)));
offset2 += 16;
mylen -= 16;
}
break;
}
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, mylen,
"Data (%d bytes)", mylen);
}
}
/*------------------------------------------------------------------------------
* STYLE
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_style (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_STYLE));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 1: {
guint32 style;
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"Flags: 0x%02x",
tvb_get_guint8(tvb, offset2));
style = tvb_get_ntoh24(tvb, offset2+1);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+1,
3, "Style: 0x%06X - %s", style,
val_to_str(style, style_vals, "Unknown"));
proto_item_set_text(ti, "STYLE: %s (%d)",
val_to_str(style, style_vals, "Unknown"),
style);
break;
}
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* CONFIRM
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_confirm (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_CONFIRM));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 1: {
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Receiver address: %s",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
proto_item_set_text(ti, "CONFIRM: Receiver %s",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
break;
}
case 2: {
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 2 - IPv6");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 16,
"Receiver address: %s",
ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, offset2, 16)));
break;
}
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
}
}
/*------------------------------------------------------------------------------
* SENDER TEMPLATE and FILTERSPEC
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_template_filter (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
switch(class) {
case RSVP_CLASS_SENDER_TEMPLATE :
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_SENDER_TEMPLATE));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
break;
default:
case RSVP_CLASS_FILTER_SPEC :
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_FILTER_SPEC));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
break;
}
proto_item_set_text(ti, summary_template(tvb, offset));
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SENDER_IP],
tvb, offset2, 4, FALSE);
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SENDER_PORT],
tvb, offset2+6, 2, FALSE);
break;
case 2:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 2 - IPv6");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 16,
"Source address: %s",
ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, offset2, 16)));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+18, 2,
"Source port: %u",
tvb_get_ntohs(tvb, offset2+18));
break;
case 7:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 7 - IPv4 LSP");
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SENDER_IP],
tvb, offset2, 4, FALSE);
proto_tree_add_item(rsvp_object_tree,
rsvp_filter[RSVPF_SENDER_LSP_ID],
tvb, offset2+6, 2, FALSE);
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
}
}
/*------------------------------------------------------------------------------
* SENDER TSPEC
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_tspec (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
int mylen;
proto_tree *tspec_tree, *ti2;
guint8 signal_type;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_TSPEC));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
mylen = obj_length - 4;
switch(type) {
case 2:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1 - Integrated Services");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"Message format version: %u",
tvb_get_guint8(tvb, offset2)>>4);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"Data length: %u words, not including header",
tvb_get_ntohs(tvb, offset2+2));
mylen -= 4;
offset2 += 4;
proto_item_set_text(ti, "SENDER TSPEC: IntServ: ");
while (mylen > 0) {
guint8 service_num;
guint8 param_id;
guint16 param_len;
guint16 param_len_processed;
guint16 length;
service_num = tvb_get_guint8(tvb, offset2);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"Service header: %u - %s",
service_num,
val_to_str(service_num, qos_vals, "Unknown"));
length = tvb_get_ntohs(tvb, offset2+2);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"Length of service %u data: %u words, "
"not including header",
service_num, length);
mylen -= 4;
offset2 += 4;
/* Process all known service headers as a set of parameters */
param_len_processed = 0;
while (param_len_processed < length) {
param_id = tvb_get_guint8(tvb, offset2);
param_len = tvb_get_ntohs(tvb, offset2+2) + 1;
switch(param_id) {
case 127:
/* Token Bucket */
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2, param_len*4,
"Token Bucket TSpec: ");
tspec_tree = proto_item_add_subtree(ti2, TREE(TT_TSPEC_SUBTREE));
proto_tree_add_text(tspec_tree, tvb, offset2, 1,
"Parameter %u - %s",
param_id,
val_to_str(param_id, svc_vals, "Unknown"));
proto_tree_add_text(tspec_tree, tvb, offset2+1, 1,
"Parameter %u flags: 0x%02x",
param_id,
tvb_get_guint8(tvb, offset2+1));
proto_tree_add_text(tspec_tree, tvb, offset2+2, 2,
"Parameter %u data length: %u words, "
"not including header",
param_id,
tvb_get_ntohs(tvb, offset2+2));
proto_tree_add_text(tspec_tree, tvb, offset2+4, 4,
"Token bucket rate: %.10g",
tvb_get_ntohieee_float(tvb, offset2+4));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
"Token bucket size: %.10g",
tvb_get_ntohieee_float(tvb, offset2+8));
proto_tree_add_text(tspec_tree, tvb, offset2+12, 4,
"Peak data rate: %.10g",
tvb_get_ntohieee_float(tvb, offset2+12));
proto_tree_add_text(tspec_tree, tvb, offset2+16, 4,
"Minimum policed unit [m]: %u",
tvb_get_ntohl(tvb, offset2+16));
proto_tree_add_text(tspec_tree, tvb, offset2+20, 4,
"Maximum packet size [M]: %u",
tvb_get_ntohl(tvb, offset2+20));
proto_item_append_text(ti, "Token Bucket, %.10g bytes/sec. ",
tvb_get_ntohieee_float(tvb, offset2+4));
proto_item_append_text(ti2, "Rate=%.10g Burst=%.10g Peak=%.10g m=%u M=%u",
tvb_get_ntohieee_float(tvb, offset2+4),
tvb_get_ntohieee_float(tvb, offset2+8),
tvb_get_ntohieee_float(tvb, offset2+12),
tvb_get_ntohl(tvb, offset2+16),
tvb_get_ntohl(tvb, offset2+20));
break;
case 128:
/* Null Service (RFC2997) */
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2, param_len*4,
"Null Service TSpec: ");
tspec_tree = proto_item_add_subtree(ti2, TREE(TT_TSPEC_SUBTREE));
proto_tree_add_text(tspec_tree, tvb, offset2, 1,
"Parameter %u - %s",
param_id,
val_to_str(param_id, svc_vals, "Unknown"));
proto_tree_add_text(tspec_tree, tvb, offset2+1, 1,
"Parameter %u flags: %x",
param_id,
tvb_get_guint8(tvb, offset2+1));
proto_tree_add_text(tspec_tree, tvb, offset2+2, 2,
"Parameter %u data length: %u words, "
"not including header",
param_id,
tvb_get_ntohs(tvb, offset2+2));
proto_tree_add_text(tspec_tree, tvb, offset2+4, 4,
"Maximum packet size [M]: %u",
tvb_get_ntohl(tvb, offset2+4));
proto_item_append_text(ti, "Null Service. M=%u",
tvb_get_ntohl(tvb, offset2+4));
proto_item_append_text(ti2, "Max pkt size=%u",
tvb_get_ntohl(tvb, offset2+4));
break;
case 126:
/* Compression hint (RFC3006) */
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2, param_len*4,
"Compression Hint: ");
tspec_tree = proto_item_add_subtree(ti2, TREE(TT_TSPEC_SUBTREE));
proto_tree_add_text(tspec_tree, tvb, offset2, 1,
"Parameter %u - %s",
param_id,
val_to_str(param_id, svc_vals, "Unknown"));
proto_tree_add_text(tspec_tree, tvb, offset2+1, 1,
"Parameter %u flags: %x",
param_id,
tvb_get_guint8(tvb, offset2+1));
proto_tree_add_text(tspec_tree, tvb, offset2+2, 2,
"Parameter %u data length: %u words, "
"not including header",
param_id,
tvb_get_ntohs(tvb, offset2+2));
proto_tree_add_text(tspec_tree, tvb, offset2+4, 4,
"Hint: %u",
tvb_get_ntohl(tvb, offset2+4));
proto_tree_add_text(tspec_tree, tvb, offset2+4, 4,
"Compression Factor: %u",
tvb_get_ntohl(tvb, offset2+8));
proto_item_append_text(ti, "Compression Hint. Hint=%u, Factor=%u",
tvb_get_ntohl(tvb, offset2+4),
tvb_get_ntohl(tvb, offset2+8));
proto_item_append_text(ti2, "Hint=%u, Factor=%u",
tvb_get_ntohl(tvb, offset2+4),
tvb_get_ntohl(tvb, offset2+8));
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset2, param_len*4,
"Unknown parameter %d, %d words",
param_id, param_len);
break;
}
param_len_processed += param_len;
offset2 += param_len*4;
}
mylen -= length*4;
}
break;
case 4: /* SONET/SDH Tspec */
proto_item_set_text(ti, "SENDER TSPEC: SONET/SDH: ");
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 4 - SONET/SDH");
signal_type = tvb_get_guint8(tvb, offset2);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"Signal Type: %d - %s", signal_type,
val_to_str(signal_type,
gmpls_sonet_signal_type_str, "Unknown"));
ti2 = proto_tree_add_text(rsvp_object_tree, tvb, offset2+1, 1,
"Requested Concatenation (RCC): %d", tvb_get_guint8(tvb, offset2+1));
tspec_tree = proto_item_add_subtree(ti2, TREE(TT_TSPEC_SUBTREE));
proto_tree_add_text(tspec_tree, tvb, offset2+1, 1,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+1), 0x01, 8,
"Standard contiguous concatenation",
"No standard contiguous concatenation"));
proto_tree_add_text(tspec_tree, tvb, offset2+1, 1,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+1), 0x02, 8,
"Arbitrary contiguous concatenation",
"No arbitrary contiguous concatenation"));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"Number of Contiguous Components (NCC): %d", tvb_get_ntohs(tvb, offset2+2));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 2,
"Number of Virtual Components (NVC): %d", tvb_get_ntohs(tvb, offset2+4));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+6, 2,
"Multiplier (MT): %d", tvb_get_ntohs(tvb, offset2+6));
ti2 = proto_tree_add_text(rsvp_object_tree, tvb, offset2+8, 4,
"Transparency (T): 0x%0x", tvb_get_ntohl(tvb, offset2+8));
tspec_tree = proto_item_add_subtree(ti2, TREE(TT_TSPEC_SUBTREE));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_ntohl(tvb, offset2+8), 0x0001, 32,
"Section/Regenerator Section layer transparency",
"No Section/Regenerator Section layer transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0002, 32,
"Line/Multiplex Section layer transparency",
"No Line/Multiplex Section layer transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0004, 32,
"J0 transparency",
"No J0 transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0008, 32,
"SOH/RSOH DCC transparency",
"No SOH/RSOH DCC transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0010, 32,
"LOH/MSOH DCC transparency",
"No LOH/MSOH DCC transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0020, 32,
"LOH/MSOH Extended DCC transparency",
"No LOH/MSOH Extended DCC transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0040, 32,
"K1/K2 transparency",
"No K1/K2 transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0080, 32,
"E1 transparency",
"No E1 transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0100, 32,
"F1 transparency",
"No F1 transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0200, 32,
"E2 transparency",
"No E2 transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0400, 32,
"B1 transparency",
"No B1 transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0800, 32,
"B2 transparency",
"No B2 transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x1000, 32,
"M0 transparency",
"No M0 transparency"));
proto_tree_add_text(tspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x2000, 32,
"M1 transparency",
"No M1 transparency"));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+12, 4,
"Profile (P): %d", tvb_get_ntohl(tvb, offset2+12));
proto_item_append_text(ti, "Signal [%s], RCC %d, NCC %d, NVC %d, MT %d, Transparency %d, Profile %d",
val_to_str(signal_type, gmpls_sonet_signal_type_str, "Unknown"),
tvb_get_guint8(tvb, offset2+1), tvb_get_ntohs(tvb, offset2+2),
tvb_get_ntohs(tvb, offset2+4), tvb_get_ntohs(tvb, offset2+6),
tvb_get_ntohl(tvb, offset2+8), tvb_get_ntohl(tvb, offset2+12));
break;
default: /* Unknown TSpec */
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* FLOWSPEC
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_flowspec (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
int mylen, signal_type;
proto_tree *flowspec_tree, *ti2;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_FLOWSPEC));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: %u", type);
mylen = obj_length - 4;
switch(type) {
case 2:
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"Message format version: %u",
tvb_get_guint8(tvb, offset2)>>4);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"Data length: %u words, not including header",
tvb_get_ntohs(tvb, offset2+2));
proto_item_set_text(ti, "FLOWSPEC: ");
mylen -= 4;
offset2+= 4;
while (mylen > 0) {
guint8 service_num;
guint16 length;
guint8 param_id;
guint16 param_len;
guint16 param_len_processed;
service_num = tvb_get_guint8(tvb, offset2);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"Service header: %u - %s",
service_num,
val_to_str(service_num, intsrv_services_str, "Unknown"));
length = tvb_get_ntohs(tvb, offset2+2);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"Length of service %u data: %u words, "
"not including header",
service_num,
length);
mylen -= 4;
offset2 += 4;
proto_item_append_text(ti, "%s: ",
val_to_str(service_num, intsrv_services_str,
"Unknown (%d)"));
/* Process all known service headers as a set of parameters */
param_len_processed = 0;
while (param_len_processed < length) {
param_id = tvb_get_guint8(tvb, offset2);
param_len = tvb_get_ntohs(tvb, offset2+2) + 1;
switch(param_id) {
case 127:
/* Token Bucket */
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2, param_len*4,
"Token Bucket: ");
flowspec_tree = proto_item_add_subtree(ti2, TREE(TT_FLOWSPEC_SUBTREE));
proto_tree_add_text(flowspec_tree, tvb, offset2, 1,
"Parameter %u - %s",
param_id,
val_to_str(param_id, svc_vals, "Unknown"));
proto_tree_add_text(flowspec_tree, tvb, offset2+1, 1,
"Parameter %u flags: 0x%02x",
param_id,
tvb_get_guint8(tvb, offset2+1));
proto_tree_add_text(flowspec_tree, tvb, offset2+2, 2,
"Parameter %u data length: %u words, "
"not including header",
param_id,
tvb_get_ntohs(tvb, offset2+2));
proto_tree_add_text(flowspec_tree, tvb, offset2+4, 4,
"Token bucket rate: %.10g",
tvb_get_ntohieee_float(tvb, offset2+4));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
"Token bucket size: %.10g",
tvb_get_ntohieee_float(tvb, offset2+8));
proto_tree_add_text(flowspec_tree, tvb, offset2+12, 4,
"Peak data rate: %.10g",
tvb_get_ntohieee_float(tvb, offset2+12));
proto_tree_add_text(flowspec_tree, tvb, offset2+16, 4,
"Minimum policed unit [m]: %u",
tvb_get_ntohl(tvb, offset2+16));
proto_tree_add_text(flowspec_tree, tvb, offset2+20, 4,
"Maximum packet size [M]: %u",
tvb_get_ntohl(tvb, offset2+20));
proto_item_append_text(ti, "Token Bucket, %.10g bytes/sec. ",
tvb_get_ntohieee_float(tvb, offset2+4));
proto_item_append_text(ti2, "Rate=%.10g Burst=%.10g Peak=%.10g m=%u M=%u",
tvb_get_ntohieee_float(tvb, offset2+4),
tvb_get_ntohieee_float(tvb, offset2+8),
tvb_get_ntohieee_float(tvb, offset2+12),
tvb_get_ntohl(tvb, offset2+16),
tvb_get_ntohl(tvb, offset2+20));
break;
case 130:
/* Guaranteed-rate RSpec */
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2, param_len*4,
"Guaranteed-Rate RSpec: ");
flowspec_tree = proto_item_add_subtree(ti2, TREE(TT_FLOWSPEC_SUBTREE));
proto_tree_add_text(flowspec_tree, tvb, offset2, 1,
"Parameter %u - %s",
param_id,
val_to_str(param_id, svc_vals, "Unknown"));
proto_tree_add_text(flowspec_tree, tvb, offset2+1, 1,
"Parameter %u flags: %x",
param_id,
tvb_get_guint8(tvb, offset2+1));
proto_tree_add_text(flowspec_tree, tvb, offset2+2, 2,
"Parameter %u data length: %u words, "
"not including header",
param_id,
tvb_get_ntohs(tvb, offset2+2));
proto_tree_add_text(flowspec_tree, tvb, offset2+4, 4,
"Rate: %.10g",
tvb_get_ntohieee_float(tvb, offset2+4));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
"Slack term: %u",
tvb_get_ntohl(tvb, offset2+8));
proto_item_append_text(ti, "RSpec, %.10g bytes/sec. ",
tvb_get_ntohieee_float(tvb, offset2+4));
proto_item_append_text(ti2, "R=%.10g, s=%u",
tvb_get_ntohieee_float(tvb, offset2+4),
tvb_get_ntohl(tvb, offset2+8));
break;
case 128:
/* Null Service (RFC2997) */
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2, param_len*4,
"Null Service Flowspec: ");
flowspec_tree = proto_item_add_subtree(ti2, TREE(TT_FLOWSPEC_SUBTREE));
proto_tree_add_text(flowspec_tree, tvb, offset2, 1,
"Parameter %u - %s",
param_id,
val_to_str(param_id, svc_vals, "Unknown"));
proto_tree_add_text(flowspec_tree, tvb, offset2+1, 1,
"Parameter %u flags: %x",
param_id,
tvb_get_guint8(tvb, offset2+1));
proto_tree_add_text(flowspec_tree, tvb, offset2+2, 2,
"Parameter %u data length: %u words, "
"not including header",
param_id,
tvb_get_ntohs(tvb, offset2+2));
proto_tree_add_text(flowspec_tree, tvb, offset2+4, 4,
"Maximum packet size [M]: %u",
tvb_get_ntohl(tvb, offset2+4));
proto_item_append_text(ti, "Null Service. M=%u",
tvb_get_ntohl(tvb, offset2+4));
proto_item_append_text(ti2, "Max pkt size=%u",
tvb_get_ntohl(tvb, offset2+4));
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset2, param_len*4,
"Unknown parameter %d, %d words",
param_id, param_len);
break;
}
param_len_processed += param_len;
offset2 += param_len * 4;
}
/* offset2 += length*4; */
mylen -= length*4;
}
break;
case 4:
proto_item_set_text(ti, "FLOWSPEC: SONET/SDH: ");
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 4 - SONET/SDH");
signal_type = tvb_get_guint8(tvb, offset2);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"Signal Type: %d - %s", signal_type,
val_to_str(signal_type,
gmpls_sonet_signal_type_str, "Unknown"));
ti2 = proto_tree_add_text(rsvp_object_tree, tvb, offset2+1, 1,
"Requested Concatenation (RCC): %d", tvb_get_guint8(tvb, offset2+1));
flowspec_tree = proto_item_add_subtree(ti2, TREE(TT_FLOWSPEC_SUBTREE));
proto_tree_add_text(flowspec_tree, tvb, offset2+1, 1,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+1), 0x01, 8,
"Standard contiguous concatenation",
"No standard contiguous concatenation"));
proto_tree_add_text(flowspec_tree, tvb, offset2+1, 1,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+1), 0x02, 8,
"Arbitrary contiguous concatenation",
"No arbitrary contiguous concatenation"));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"Number of Contiguous Components (NCC): %d", tvb_get_ntohs(tvb, offset2+2));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 2,
"Number of Virtual Components (NVC): %d", tvb_get_ntohs(tvb, offset2+4));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+6, 2,
"Multiplier (MT): %d", tvb_get_ntohs(tvb, offset2+6));
ti2 = proto_tree_add_text(rsvp_object_tree, tvb, offset2+8, 4,
"Transparency (T): 0x%0x", tvb_get_ntohl(tvb, offset2+8));
flowspec_tree = proto_item_add_subtree(ti2, TREE(TT_FLOWSPEC_SUBTREE));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_ntohl(tvb, offset2+8), 0x0001, 32,
"Section/Regenerator Section layer transparency",
"No Section/Regenerator Section layer transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0002, 32,
"Line/Multiplex Section layer transparency",
"No Line/Multiplex Section layer transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0004, 32,
"J0 transparency",
"No J0 transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0008, 32,
"SOH/RSOH DCC transparency",
"No SOH/RSOH DCC transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0010, 32,
"LOH/MSOH DCC transparency",
"No LOH/MSOH DCC transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0020, 32,
"LOH/MSOH Extended DCC transparency",
"No LOH/MSOH Extended DCC transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0040, 32,
"K1/K2 transparency",
"No K1/K2 transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0080, 32,
"E1 transparency",
"No E1 transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0100, 32,
"F1 transparency",
"No F1 transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0200, 32,
"E2 transparency",
"No E2 transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0400, 32,
"B1 transparency",
"No B1 transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x0800, 32,
"B2 transparency",
"No B2 transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x1000, 32,
"M0 transparency",
"No M0 transparency"));
proto_tree_add_text(flowspec_tree, tvb, offset2+8, 4,
decode_boolean_bitfield(tvb_get_guint8(tvb, offset2+8), 0x2000, 32,
"M1 transparency",
"No M1 transparency"));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+12, 4,
"Profile (P): %d", tvb_get_ntohl(tvb, offset2+12));
proto_item_append_text(ti, "Signal [%s], RCC %d, NCC %d, NVC %d, MT %d, Transparency %d, Profile %d",
val_to_str(signal_type, gmpls_sonet_signal_type_str, "Unknown"),
tvb_get_guint8(tvb, offset2+1), tvb_get_ntohs(tvb, offset2+2),
tvb_get_ntohs(tvb, offset2+4), tvb_get_ntohs(tvb, offset2+6),
tvb_get_ntohl(tvb, offset2+8), tvb_get_ntohl(tvb, offset2+12));
break;
default:
break;
}
}
/*------------------------------------------------------------------------------
* ADSPEC
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_adspec (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
int mylen, i;
proto_tree *adspec_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_ADSPEC));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: %u", type);
mylen = obj_length - 4;
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"Message format version: %u",
tvb_get_guint8(tvb, offset2)>>4);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"Data length: %u words, not including header",
tvb_get_ntohs(tvb, offset2+2));
mylen -= 4;
offset2 += 4;
while (mylen > 0) {
guint8 service_num;
guint8 break_bit;
guint16 length;
char *str;
service_num = tvb_get_guint8(tvb, offset2);
str = val_to_str(service_num, intsrv_services_str, "Unknown");
break_bit = tvb_get_guint8(tvb, offset2+1);
length = tvb_get_ntohs(tvb, offset2+2);
ti = proto_tree_add_text(rsvp_object_tree, tvb, offset2,
(length+1)*4,
str);
adspec_tree = proto_item_add_subtree(ti,
TREE(TT_ADSPEC_SUBTREE));
proto_tree_add_text(adspec_tree, tvb, offset2, 1,
"Service header %u - %s",
service_num, str);
proto_tree_add_text(adspec_tree, tvb, offset2+1, 1,
(break_bit&0x80)?
"Break bit set":"Break bit not set");
proto_tree_add_text(adspec_tree, tvb, offset2+2, 2,
"Data length: %u words, not including header",
length);
mylen -= 4;
offset2 += 4;
i = length*4;
while (i > 0) {
guint8 id;
guint16 phdr_length;
id = tvb_get_guint8(tvb, offset2);
phdr_length = tvb_get_ntohs(tvb, offset2+2);
str = match_strval(id, adspec_params);
if (str) {
switch(id) {
case 4:
case 8:
case 10:
case 133:
case 134:
case 135:
case 136:
/* 32-bit unsigned integer */
proto_tree_add_text(adspec_tree, tvb, offset2,
(phdr_length+1)<<2,
"%s - %u (type %u, length %u)",
str,
tvb_get_ntohl(tvb, offset2+4),
id, phdr_length);
break;
case 6:
/* IEEE float */
proto_tree_add_text(adspec_tree, tvb, offset2,
(phdr_length+1)<<2,
"%s - %.10g (type %u, length %u)",
str,
tvb_get_ntohieee_float(tvb, offset2+4),
id, phdr_length);
break;
default:
proto_tree_add_text(adspec_tree, tvb, offset2,
(phdr_length+1)<<2,
"%s (type %u, length %u)",
str,
id, phdr_length);
}
} else {
proto_tree_add_text(adspec_tree, tvb, offset2,
(phdr_length+1)<<2,
"Unknown (type %u, length %u)",
id, phdr_length);
}
offset2 += (phdr_length+1)<<2;
i -= (phdr_length+1)<<2;
mylen -= (phdr_length+1)<<2;
}
}
}
/*------------------------------------------------------------------------------
* INTEGRITY
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_integrity (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
proto_tree *ti2, *rsvp_integ_flags_tree;
int flags;
guint64 sequence_number;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_INTEGRITY));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: %u", type);
flags = tvb_get_guint8(tvb, offset2);
ti2 = proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"Flags: 0x%02x", flags);
rsvp_integ_flags_tree = proto_item_add_subtree(ti2, TREE(TT_INTEGRITY_FLAGS));
proto_tree_add_text(rsvp_integ_flags_tree, tvb, offset2, 1,
decode_boolean_bitfield(flags, 0x01, 8, "Handshake capable", "Handshake not capable"));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 6,
"Key Identifier: %s", tvb_bytes_to_str(tvb, offset2+2, 6));
sequence_number = tvb_get_ntohl(tvb, offset2+8);
sequence_number <<= 32;
sequence_number = tvb_get_ntohl(tvb, offset2+12);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+8, 8,
"Sequence Number: %llu", sequence_number);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+16, obj_length - 20,
"Hash: %s", tvb_bytes_to_str(tvb, offset2+16, obj_length - 20));
}
/*------------------------------------------------------------------------------
* POLICY
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_policy (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_POLICY));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: %u", type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
}
/*------------------------------------------------------------------------------
* LABEL_REQUEST
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_label_request (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_LABEL_REQUEST));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 1: {
unsigned short l3pid = tvb_get_ntohs(tvb, offset2+2);
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"L3PID: %s (0x%04x)",
val_to_str(l3pid, etype_vals, "Unknown"),
l3pid);
proto_item_set_text(ti, "LABEL REQUEST: Basic: L3PID: %s (0x%04x)",
val_to_str(l3pid, etype_vals, "Unknown"),
l3pid);
break;
}
case 2: {
unsigned short l3pid = tvb_get_ntohs(tvb, offset2+2);
unsigned short min_vpi, min_vci, max_vpi, max_vci;
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 2 (Label Request with ATM label Range)");
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"L3PID: %s (0x%04x)",
val_to_str(l3pid, etype_vals, "Unknown"),
l3pid);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 1,
"M: %s Merge in Data Plane",
(tvb_get_guint8(tvb, offset2+4) & 0x80) ?
"1: Can" : "0: Cannot");
min_vpi = tvb_get_ntohs(tvb, offset2+4) & 0x7f;
min_vci = tvb_get_ntohs(tvb, offset2+6);
max_vpi = tvb_get_ntohs(tvb, offset2+8) & 0x7f;
max_vci = tvb_get_ntohs(tvb, offset2+10);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 2,
"Min VPI: %d", min_vpi);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+6, 2,
"Min VCI: %d", min_vci);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+8, 2,
"Max VPI: %d", max_vpi);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+10, 2,
"Max VCI: %d", max_vci);
proto_item_set_text(ti, "LABEL REQUEST: ATM: L3PID: %s (0x%04x). VPI/VCI: Min: %d/%d, Max: %d/%d. %s Merge. ",
val_to_str(l3pid, etype_vals, "Unknown"), l3pid,
min_vpi, min_vci, max_vpi, max_vci,
(tvb_get_guint8(tvb, offset2+4) & 0x80) ? "Can" : "Cannot");
break;
}
case 3: {
guint16 l3pid = tvb_get_ntohs(tvb, offset2+2);
guint32 min_dlci, max_dlci, dlci_len, dlci_len_code;
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 2 (Label Request with ATM label Range)");
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"L3PID: %s (0x%04x)",
val_to_str(l3pid, etype_vals, "Unknown"),
l3pid);
dlci_len_code = (tvb_get_ntohs(tvb, offset2+4) & 0x0180) >> 7;
min_dlci = tvb_get_ntohl(tvb, offset2+4) & 0x7fffff;
max_dlci = tvb_get_ntohl(tvb, offset2+8) & 0x7fffff;
switch(dlci_len_code) {
case 0:
/* 10-bit DLCIs */
dlci_len = 10;
min_dlci &= 0x3ff;
max_dlci &= 0x3ff;
case 2:
dlci_len = 23;
default:
dlci_len = 0;
min_dlci = 0;
max_dlci = 0;
}
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 2,
"DLCI Length: %s (%d)",
dlci_len==10 ? "10 bits" :
dlci_len==23 ? "23 bits" :
"INVALID", dlci_len_code);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+5, 3,
"Min DLCI: %d", min_dlci);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+8, 2,
"Max DLCI: %d", max_dlci);
proto_item_set_text(ti, "LABEL REQUEST: Frame: L3PID: %s (0x%04x). DLCI Len: %s. Min DLCI: %d. Max DLCI: %d",
val_to_str(l3pid, etype_vals, "Unknown"), l3pid,
dlci_len==10 ? "10 bits" :
dlci_len==23 ? "23 bits" :
"INVALID", min_dlci, max_dlci);
break;
}
case 4: {
unsigned short l3pid = tvb_get_ntohs(tvb, offset2+2);
unsigned char lsp_enc = tvb_get_guint8(tvb,offset2);
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 4 (Generalized Label Request)");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"LSP Encoding Type: %s",
val_to_str(lsp_enc, gmpls_lsp_enc_str, "Unknown (%d)"));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+1, 1,
"Switching Type: %s",
val_to_str(tvb_get_guint8(tvb,offset2+1),
gmpls_switching_type_str, "Unknown (%d)"));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 2,
"G-PID: %s (0x%0x)",
val_to_str(l3pid, gmpls_gpid_str,
val_to_str(l3pid, etype_vals,
"Unknown G-PID(0x%04x)")),
l3pid);
proto_item_set_text(ti, "LABEL REQUEST: Generalized: LSP Encoding=%s, "
"Switching Type=%s, G-PID=%s ",
val_to_str(lsp_enc, gmpls_lsp_enc_str, "Unknown (%d)"),
val_to_str(tvb_get_guint8(tvb,offset2+1),
gmpls_switching_type_str, "Unknown (%d)"),
val_to_str(l3pid, gmpls_gpid_str,
val_to_str(l3pid, etype_vals,
"Unknown (0x%04x)")));
break;
}
default: {
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
}
/*------------------------------------------------------------------------------
* LABEL
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_label (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
int mylen, i;
char *name;
name = (class==RSVP_CLASS_SUGGESTED_LABEL ? "SUGGESTED LABEL":
(class==RSVP_CLASS_UPSTREAM_LABEL ? "UPSTREAM LABEL":
"LABEL"));
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_LABEL));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
mylen = obj_length - 4;
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1 (Packet Label)");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Label: %u",
tvb_get_ntohl(tvb, offset2));
proto_item_set_text(ti, "%s: %d", name,
tvb_get_ntohl(tvb, offset2));
break;
case 2:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 2 (Generalized Label)");
proto_item_set_text(ti, "%s: Generalized: ", name);
for (i = 0; i < mylen; i += 4) {
proto_tree_add_text(rsvp_object_tree, tvb, offset2+i, 4,
"Generalized Label: %u",
tvb_get_ntohl(tvb, offset2+i));
if (i < 16) {
proto_item_append_text(ti, "%d%s",
tvb_get_ntohl(tvb, offset2+i),
i+4<mylen?", ":"");
} else if (i == 16) {
proto_item_append_text(ti, "...");
}
}
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, mylen,
"Data (%d bytes)", mylen);
break;
}
}
/*------------------------------------------------------------------------------
* SESSION ATTRIBUTE
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_session_attribute (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
guint8 flags;
guint8 name_len;
proto_tree *ti2, *rsvp_sa_flags_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_SESSION_ATTRIBUTE));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 7:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 7 - IPv4 LSP");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 1,
"Setup priority: %u",
tvb_get_guint8(tvb, offset2));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+1, 1,
"Hold priority: %u",
tvb_get_guint8(tvb, offset2+1));
flags = tvb_get_guint8(tvb, offset2+2);
ti2 = proto_tree_add_text(rsvp_object_tree, tvb, offset2+2, 1,
"Flags: 0x%02x", flags);
rsvp_sa_flags_tree = proto_item_add_subtree(ti2,
TREE(TT_SESSION_ATTRIBUTE_FLAGS));
proto_tree_add_text(rsvp_sa_flags_tree, tvb, offset2+2, 1,
decode_boolean_bitfield(flags, 0x01, 8,
"Local protection desired",
"Local protection not desired"));
proto_tree_add_text(rsvp_sa_flags_tree, tvb, offset2+2, 1,
decode_boolean_bitfield(flags, 0x02, 8,
"Label recording desired",
"Label recording not desired"));
proto_tree_add_text(rsvp_sa_flags_tree, tvb, offset2+2, 1,
decode_boolean_bitfield(flags, 0x04, 8,
"SE style desired",
"SE style not desired"));
proto_tree_add_text(rsvp_sa_flags_tree, tvb, offset2+2, 1,
decode_boolean_bitfield(flags, 0x08, 8,
"Bandwidth protection desired",
"Bandwidth protection not desired"));
proto_tree_add_text(rsvp_sa_flags_tree, tvb, offset2+2, 1,
decode_boolean_bitfield(flags, 0x10, 8,
"Node protection desired",
"Node protection not desired"));
name_len = tvb_get_guint8(tvb, offset2+3);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+3, 1,
"Name length: %u", name_len);
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, name_len,
"Name: %.*s",
name_len,
tvb_get_ptr(tvb, offset2+4, name_len));
proto_item_set_text(ti, "SESSION ATTRIBUTE: SetupPrio %d, HoldPrio %d, %s%s%s%s%s [%s]",
tvb_get_guint8(tvb, offset2),
tvb_get_guint8(tvb, offset2+1),
flags &0x01 ? "Local Protection, " : "",
flags &0x02 ? "Label Recording, " : "",
flags &0x04 ? "SE Style, " : "",
flags &0x08 ? "Bandwidth Protection, " : "",
flags &0x10 ? "Node Protection, " : "",
name_len ? (char*)tvb_format_text(tvb, offset2+4, name_len) : "");
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* EXPLICIT ROUTE AND RECORD ROUTE SUBOBJECTS
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_ero_rro_subobjects (proto_tree *ti, proto_tree *rsvp_object_tree,
tvbuff_t *tvb,
int offset, int obj_length, int class)
{
int i, j, k, l;
proto_tree *ti2, *rsvp_ro_subtree, *rsvp_rro_flags_subtree;
int tree_type;
switch(class) {
case RSVP_CLASS_EXPLICIT_ROUTE:
tree_type = TREE(TT_EXPLICIT_ROUTE_SUBOBJ);
break;
case RSVP_CLASS_RECORD_ROUTE:
tree_type = TREE(TT_RECORD_ROUTE_SUBOBJ);
break;
default:
/* Bail out */
return;
}
for (i=1, l = 0; l < obj_length - 4; i++) {
j = tvb_get_guint8(tvb, offset+l) & 0x7f;
switch(j) {
case 1: /* IPv4 */
k = tvb_get_guint8(tvb, offset+l) & 0x80;
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset+l, 8,
"IPv4 Subobject - %s, %s",
ip_to_str(tvb_get_ptr(tvb, offset+l+2, 4)),
class == RSVP_CLASS_EXPLICIT_ROUTE ?
(k ? "Loose" : "Strict") : "");
rsvp_ro_subtree =
proto_item_add_subtree(ti2, tree_type);
if (class == RSVP_CLASS_EXPLICIT_ROUTE)
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
k ? "Loose Hop " : "Strict Hop");
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
"Type: 1 (IPv4)");
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+1, 1,
"Length: %u",
tvb_get_guint8(tvb, offset+l+1));
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+2, 4,
"IPv4 hop: %s",
ip_to_str(tvb_get_ptr(tvb, offset+l+2, 4)));
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+6, 1,
"Prefix length: %u",
tvb_get_guint8(tvb, offset+l+6));
if (class == RSVP_CLASS_RECORD_ROUTE) {
if (k&0x01) proto_item_append_text(ti2, ", Local Protection Available");
if (k&0x02) proto_item_append_text(ti2, ", Local Protection In Use");
if (k&0x04) proto_item_append_text(ti2, ", Backup BW Avail");
if (k&0x08) proto_item_append_text(ti2, ", Backup is Next-Next-Hop");
ti2 = proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+7, 1,
"Flags: 0x%08x", k);
rsvp_rro_flags_subtree =
proto_item_add_subtree(ti2, TREE(TT_RECORD_ROUTE_SUBOBJ_FLAGS));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+7, 1,
decode_boolean_bitfield(k, 0x01, 8,
"Local Protection Available",
"Local Protection Not Available"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+7, 1,
decode_boolean_bitfield(k, 0x02, 8,
"Local Protection In Use",
"Local Protection Not In Use"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+7, 1,
decode_boolean_bitfield(k, 0x04, 8,
"Bandwidth Protection Available",
"Bandwidth Protection Not Available"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+7, 1,
decode_boolean_bitfield(k, 0x08, 8,
"Node Protection Available",
"Node Protection Not Available"));
}
if (i < 4) {
proto_item_append_text(ti, "IPv4 %s%s",
ip_to_str(tvb_get_ptr(tvb, offset+l+2, 4)),
k ? " [L]":"");
}
break;
case 2: /* IPv6 */
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset+l, 20,
"IPv6 Subobject");
rsvp_ro_subtree =
proto_item_add_subtree(ti2, tree_type);
k = tvb_get_guint8(tvb, offset+l) & 0x80;
if (class == RSVP_CLASS_EXPLICIT_ROUTE)
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
k ? "Loose Hop " : "Strict Hop");
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
"Type: 2 (IPv6)");
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+1, 1,
"Length: %u",
tvb_get_guint8(tvb, offset+l+1));
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+2, 16,
"IPv6 hop: %s",
ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, offset+l+2, 16)));
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+18, 1,
"Prefix length: %u",
tvb_get_guint8(tvb, offset+l+18));
if (class == RSVP_CLASS_RECORD_ROUTE) {
if (k&0x01) proto_item_append_text(ti2, ", Local Protection Available");
if (k&0x02) proto_item_append_text(ti2, ", Local Protection In Use");
if (k&0x04) proto_item_append_text(ti2, ", Backup BW Avail");
if (k&0x08) proto_item_append_text(ti2, ", Backup is Next-Next-Hop");
ti2 = proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+19, 1,
"Flags: 0x%08x", k);
rsvp_rro_flags_subtree =
proto_item_add_subtree(ti2, TREE(TT_RECORD_ROUTE_SUBOBJ_FLAGS));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+19, 1,
decode_boolean_bitfield(k, 0x01, 8,
"Local Protection Available",
"Local Protection Not Available"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+19, 1,
decode_boolean_bitfield(k, 0x02, 8,
"Local Protection In Use",
"Local Protection Not In Use"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+19, 1,
decode_boolean_bitfield(k, 0x04, 8,
"Backup Tunnel Has Bandwidth",
"Backup Tunnel Does Not Have Bandwidth"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+19, 1,
decode_boolean_bitfield(k, 0x08, 8,
"Backup Tunnel Goes To Next-Next-Hop",
"Backup Tunnel Goes To Next-Hop"));
}
if (i < 4) {
proto_item_append_text(ti, "IPv6 [...]%s", k ? " [L]":"");
}
break;
case 3: /* Label */
k = tvb_get_guint8(tvb, offset+l) & 0x80;
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset+l, 8,
"Label Subobject - %d, %s",
tvb_get_ntohl(tvb, offset+l+4),
class == RSVP_CLASS_EXPLICIT_ROUTE ?
(k ? "Loose" : "Strict") : "");
rsvp_ro_subtree =
proto_item_add_subtree(ti2, tree_type);
if (class == RSVP_CLASS_EXPLICIT_ROUTE)
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
k ? "Loose Hop " : "Strict Hop");
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
"Type: 3 (Label)");
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+1, 1,
"Length: %u",
tvb_get_guint8(tvb, offset+l+1));
if (class == RSVP_CLASS_RECORD_ROUTE) {
if (k&0x01) proto_item_append_text(ti2, ", Local Protection Available");
if (k&0x02) proto_item_append_text(ti2, ", Local Protection In Use");
if (k&0x04) proto_item_append_text(ti2, ", Backup BW Avail");
if (k&0x08) proto_item_append_text(ti2, ", Backup is Next-Next-Hop");
ti2 = proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+2, 1,
"Flags: 0x%08x", k);
rsvp_rro_flags_subtree =
proto_item_add_subtree(ti2, TREE(TT_RECORD_ROUTE_SUBOBJ_FLAGS));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+2, 1,
decode_boolean_bitfield(k, 0x01, 8,
"Local Protection Available",
"Local Protection Not Available"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+2, 1,
decode_boolean_bitfield(k, 0x02, 8,
"Local Protection In Use",
"Local Protection Not In Use"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+2, 1,
decode_boolean_bitfield(k, 0x04, 8,
"Backup Tunnel Has Bandwidth",
"Backup Tunnel Does Not Have Bandwidth"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+2, 1,
decode_boolean_bitfield(k, 0x08, 8,
"Backup Tunnel Goes To Next-Next-Hop",
"Backup Tunnel Goes To Next-Hop"));
}
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+3, 1,
"C-Type: %u",
tvb_get_guint8(tvb, offset+l+3));
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+4, 4,
"Label: %d",
tvb_get_ntohl(tvb, offset+l+4));
if (i < 4) {
proto_item_append_text(ti, "Label %d%s",
tvb_get_ntohl(tvb, offset+l+4),
k ? " [L]":"");
}
break;
case 4: /* Unnumbered Interface-ID */
k = tvb_get_guint8(tvb, offset+l) & 0x80;
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset+l, 8,
"Unnumbered Interface-ID - %s, %d, %s",
ip_to_str(tvb_get_ptr(tvb, offset+l+4, 4)),
tvb_get_ntohl(tvb, offset+l+8),
class == RSVP_CLASS_EXPLICIT_ROUTE ?
(k ? "Loose" : "Strict") : "");
rsvp_ro_subtree =
proto_item_add_subtree(ti2, tree_type);
if (class == RSVP_CLASS_EXPLICIT_ROUTE)
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
k ? "Loose Hop " : "Strict Hop");
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
"Type: 4 (Unnumbered Interface-ID)");
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+1, 1,
"Length: %u",
tvb_get_guint8(tvb, offset+l+1));
if (class == RSVP_CLASS_RECORD_ROUTE) {
if (k&0x01) proto_item_append_text(ti2, ", Local Protection Available");
if (k&0x02) proto_item_append_text(ti2, ", Local Protection In Use");
if (k&0x04) proto_item_append_text(ti2, ", Backup BW Avail");
if (k&0x08) proto_item_append_text(ti2, ", Backup is Next-Next-Hop");
ti2 = proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+2, 1,
"Flags: 0x%08x", k);
rsvp_rro_flags_subtree =
proto_item_add_subtree(ti2, TREE(TT_RECORD_ROUTE_SUBOBJ_FLAGS));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+2, 1,
decode_boolean_bitfield(k, 0x01, 8,
"Local Protection Available",
"Local Protection Not Available"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+2, 1,
decode_boolean_bitfield(k, 0x02, 8,
"Local Protection In Use",
"Local Protection Not In Use"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+2, 1,
decode_boolean_bitfield(k, 0x04, 8,
"Backup Tunnel Has Bandwidth",
"Backup Tunnel Does Not Have Bandwidth"));
proto_tree_add_text(rsvp_rro_flags_subtree, tvb, offset+l+2, 1,
decode_boolean_bitfield(k, 0x08, 8,
"Backup Tunnel Goes To Next-Next-Hop",
"Backup Tunnel Goes To Next-Hop"));
}
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+4, 4,
"Router-ID: %s",
ip_to_str(tvb_get_ptr(tvb, offset+l+4, 4)));
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+8, 4,
"Interface-ID: %d",
tvb_get_ntohl(tvb, offset+l+8));
if (i < 4) {
proto_item_append_text(ti, "Unnum %s/%d%s",
ip_to_str(tvb_get_ptr(tvb, offset+l+4, 4)),
tvb_get_ntohl(tvb, offset+l+8),
k ? " [L]":"");
}
break;
case 32: /* AS */
if (class == RSVP_CLASS_RECORD_ROUTE) goto defaultsub;
k = tvb_get_ntohs(tvb, offset+l+2);
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset+l, 4,
"Autonomous System %u",
k);
rsvp_ro_subtree =
proto_item_add_subtree(ti2, tree_type);
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
"Type: 32 (Autonomous System Number)");
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+1, 1,
"Length: %u",
tvb_get_guint8(tvb, offset+l+1));
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+2, 2,
"Autonomous System %u", k);
if (i < 4) {
proto_item_append_text(ti, "AS %d",
tvb_get_ntohs(tvb, offset+l+2));
}
break;
default: /* Unknown subobject */
defaultsub:
k = tvb_get_guint8(tvb, offset+l) & 0x80;
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset+l,
tvb_get_guint8(tvb, offset+l+1),
"Unknown subobject: %d", j);
rsvp_ro_subtree =
proto_item_add_subtree(ti2, tree_type);
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
k ? "Loose Hop " : "Strict Hop");
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l, 1,
"Type: %u (Unknown)", j);
proto_tree_add_text(rsvp_ro_subtree, tvb, offset+l+1, 1,
"Length: %u",
tvb_get_guint8(tvb, offset+l+1));
}
l += tvb_get_guint8(tvb, offset+l+1);
if (l < obj_length - 4) {
if (i < 4)
proto_item_append_text(ti, ", ");
else if (i==4)
proto_item_append_text(ti, "...");
}
}
}
/*------------------------------------------------------------------------------
* EXPLICIT ROUTE OBJECT
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_explicit_route (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
/* int offset2 = offset + 4; */
proto_tree *rsvp_object_tree;
/* int mylen, i, j, k, l; */
/* proto_tree *ti2, *rsvp_ero_subtree; */
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_EXPLICIT_ROUTE));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
/* mylen = obj_length - 4; */
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
proto_item_set_text(ti, "EXPLICIT ROUTE: ");
dissect_rsvp_ero_rro_subobjects(ti, rsvp_object_tree, tvb,
offset + 4, obj_length, class);
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset+4, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* RECORD ROUTE OBJECT
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_record_route (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
/* int offset2 = offset + 4; */
proto_tree *rsvp_object_tree;
/* int mylen, i, j, l; */
/* proto_tree *ti2, *rsvp_rro_subtree; */
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_RECORD_ROUTE));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_item_set_text(ti, "RECORD ROUTE: ");
/* mylen = obj_length - 4; */
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
dissect_rsvp_ero_rro_subobjects(ti, rsvp_object_tree, tvb,
offset + 4, obj_length, class);
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset+4, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* MESSAGE ID
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_message_id (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_MESSAGE_ID));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
proto_tree_add_text(rsvp_object_tree, tvb, offset+4, 1,
"Flags: %d", tvb_get_guint8(tvb, offset+4));
proto_tree_add_text(rsvp_object_tree, tvb, offset+5, 3,
"Epoch: %d", tvb_get_ntoh24(tvb, offset+5));
proto_tree_add_text(rsvp_object_tree, tvb, offset+8, 4,
"Message-ID: %d", tvb_get_ntohl(tvb, offset+8));
proto_item_set_text(ti, "MESSAGE-ID: %d %s",
tvb_get_ntohl(tvb, offset+8),
tvb_get_guint8(tvb, offset+4) & 1 ? "(Ack Desired)" : "");
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* MESSAGE ID ACK
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_message_id_ack (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_MESSAGE_ID_ACK));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
proto_tree_add_text(rsvp_object_tree, tvb, offset+4, 1,
"Flags: %d", tvb_get_guint8(tvb, offset+4));
proto_tree_add_text(rsvp_object_tree, tvb, offset+5, 3,
"Epoch: %d", tvb_get_ntoh24(tvb, offset+5));
proto_tree_add_text(rsvp_object_tree, tvb, offset+8, 4,
"Message-ID: %d", tvb_get_ntohl(tvb, offset+8));
proto_item_set_text(ti, "MESSAGE-ID ACK: %d", tvb_get_ntohl(tvb, offset+8));
break;
case 2:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 2");
proto_tree_add_text(rsvp_object_tree, tvb, offset+4, 1,
"Flags: %d", tvb_get_guint8(tvb, offset+4));
proto_tree_add_text(rsvp_object_tree, tvb, offset+5, 3,
"Epoch: %d", tvb_get_ntoh24(tvb, offset+5));
proto_tree_add_text(rsvp_object_tree, tvb, offset+8, 4,
"Message-ID: %d", tvb_get_ntohl(tvb, offset+8));
proto_item_set_text(ti, "MESSAGE-ID NACK: %d", tvb_get_ntohl(tvb, offset+8));
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* MESSAGE ID LIST
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_message_id_list (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
int mylen;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_MESSAGE_ID_LIST));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
proto_tree_add_text(rsvp_object_tree, tvb, offset+4, 1,
"Flags: %d", tvb_get_guint8(tvb, offset+4));
proto_tree_add_text(rsvp_object_tree, tvb, offset+5, 3,
"Epoch: %d", tvb_get_ntoh24(tvb, offset+5));
for (mylen = 8; mylen < obj_length; mylen += 4)
proto_tree_add_text(rsvp_object_tree, tvb, offset+mylen, 4,
"Message-ID: %d", tvb_get_ntohl(tvb, offset+mylen));
proto_item_set_text(ti, "MESSAGE-ID LIST: %d IDs",
(obj_length - 8)/4);
break;
default:
mylen = obj_length - 4;
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* HELLO
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_hello (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_HELLO_OBJ));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
switch(type) {
case 1:
case 2:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-Type: 1 - HELLO %s object",
type==1 ? "REQUEST" : "ACK");
proto_tree_add_text(rsvp_object_tree, tvb, offset+4, 4,
"Source Instance: 0x%x",tvb_get_ntohl(tvb, offset+4));
proto_tree_add_text(rsvp_object_tree, tvb, offset+8, 4,
"Destination Instance: 0x%x",tvb_get_ntohl(tvb, offset+8));
proto_item_append_text(ti, ": %s. Src Instance: 0x%0x. Dest Instance: 0x%0x. ",
type==1 ? "REQUEST" : "ACK",
tvb_get_ntohl(tvb, offset+4),
tvb_get_ntohl(tvb, offset+8));
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-Type: %d - UNKNOWN", type);
break;
};
}
/*------------------------------------------------------------------------------
* DCLASS
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_dclass (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
int mylen;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_DCLASS));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_item_set_text(ti, "DCLASS: ");
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
for (mylen = 4; mylen < obj_length; mylen += 4) {
proto_tree_add_text(rsvp_object_tree, tvb, offset+mylen+3, 1,
"DSCP: %s",
val_to_str(tvb_get_guint8(tvb, offset+mylen+3),
dscp_vals, "Unknown (%d)"));
proto_item_append_text(ti, "%d%s",
tvb_get_guint8(tvb, offset+mylen+3)>>2,
mylen==obj_length-4 ? "":
mylen<16 ? ", ":
mylen==16 ? ", ..." : "");
}
break;
default:
mylen = obj_length - 4;
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, mylen,
"Data (%d bytes)", mylen);
break;
}
}
/*------------------------------------------------------------------------------
* ADMINISTRATIVE STATUS
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_admin_status (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
proto_tree *ti2, *rsvp_admin_subtree;
int mylen;
guint32 status;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_ADMIN_STATUS));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_item_set_text(ti, "ADMIN STATUS: ");
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
status = tvb_get_ntohl(tvb, offset2);
ti2 = proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Admin Status: 0x%08x", status);
rsvp_admin_subtree =
proto_item_add_subtree(ti2, TREE(TT_ADMIN_STATUS_FLAGS));
proto_tree_add_text(rsvp_admin_subtree, tvb, offset2, 4,
decode_boolean_bitfield(status, 0x80000000, 32,
"R: Reflect",
"R: Do not reflect"));
proto_tree_add_text(rsvp_admin_subtree, tvb, offset2, 4,
decode_boolean_bitfield(status, 0x04, 32,
"T: Testing",
"T: "));
proto_tree_add_text(rsvp_admin_subtree, tvb, offset2, 4,
decode_boolean_bitfield(status, 0x02, 32,
"A: Administratively Down",
"A: "));
proto_tree_add_text(rsvp_admin_subtree, tvb, offset2, 4,
decode_boolean_bitfield(status, 0x01, 32,
"D: Delete In Progress",
"D: "));
proto_item_set_text(ti, "ADMIN-STATUS: %s %s %s %s",
(status & (1<<31)) ? "Reflect" : "",
(status & (1<<2)) ? "Testing" : "",
(status & (1<<1)) ? "Admin-Down" : "",
(status & (1<<0)) ? "Deleting" : "");
break;
default:
mylen = obj_length - 4;
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* LSP TUNNEL INTERFACE ID
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_lsp_tunnel_if_id (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_LSP_TUNNEL_IF_ID));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_item_set_text(ti, "LSP INTERFACE-ID: ");
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Router ID: %s",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 4,
"Interface ID: %u", tvb_get_ntohl(tvb, offset2+4));
proto_item_set_text(ti, "LSP INTERFACE-ID: IPv4, Router-ID %s, Interface-ID %d",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)),
tvb_get_ntohl(tvb, offset2+4));
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* GENERALIZED UNI
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_gen_uni (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
int mylen, i, j, k, l, m;
proto_tree *ti2, *rsvp_gen_uni_subtree;
int s_len, s_class, s_type;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_GEN_UNI));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_item_set_text(ti, "GENERALIZED UNI: ");
mylen = obj_length - 4;
switch(type) {
case 1: {
char *c;
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
for (i=1, l = 0; l < mylen; i++) {
j = tvb_get_guint8(tvb, offset2+l+2);
switch(j) {
case 1:
case 2: /* We do source and destination TNA together */
c = (j==1) ? "Source" : "Destination";
k = tvb_get_guint8(tvb, offset2+l+3);
switch(k) {
case 1:
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2+l, 8,
"%s IPv4 TNA - %s", c,
ip_to_str(tvb_get_ptr(tvb, offset2+l+4, 4)));
rsvp_gen_uni_subtree =
proto_item_add_subtree(ti2, TREE(TT_GEN_UNI_SUBOBJ));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+2, 1,
"Class: %d (%s)", j, c);
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+3, 1,
"Type: 1 (IPv4)");
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l, 2,
"Length: %u",
tvb_get_ntohs(tvb, offset2+l));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+4, 4,
"IPv4 hop: %s",
ip_to_str(tvb_get_ptr(tvb, offset2+l+4, 4)));
if (i < 4) {
proto_item_append_text(ti, "%s IPv4 %s", c,
ip_to_str(tvb_get_ptr(tvb, offset2+l+2, 4)));
}
break;
case 2:
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2+l, 20,
"%s IPv6 TNA", c);
rsvp_gen_uni_subtree =
proto_item_add_subtree(ti2, TREE(TT_GEN_UNI_SUBOBJ));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+2, 1,
"Class: %d (%s)", j, c);
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+3, 1,
"Type: 2 (IPv6)");
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l, 2,
"Length: %u",
tvb_get_ntohs(tvb, offset2+l));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+4, 4,
"Data");
if (i < 4) {
proto_item_append_text(ti, "%s IPv6", c);
}
break;
case 3:
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2+l, tvb_get_ntohs(tvb, offset2+l),
"%s NSAP TNA", c);
rsvp_gen_uni_subtree =
proto_item_add_subtree(ti2, TREE(TT_GEN_UNI_SUBOBJ));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+2, 1,
"Class: %d (%s)", j, c);
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+3, 1,
"Type: 3 (NSAP)");
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l, 2,
"Length: %u",
tvb_get_ntohs(tvb, offset2+l));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+4,
tvb_get_ntohs(tvb, offset2+l)-4,
"Data");
if (i < 4) {
proto_item_append_text(ti, "%s NSAP", c);
}
break;
default:
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2+l, tvb_get_ntohs(tvb, offset2+l),
"%s UNKNOWN TNA", c);
rsvp_gen_uni_subtree =
proto_item_add_subtree(ti2, TREE(TT_GEN_UNI_SUBOBJ));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+2, 1,
"Class: %d (%s)", j, c);
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+3, 1,
"Type: %d (UNKNOWN)", j);
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l, 2,
"Length: %u",
tvb_get_ntohs(tvb, offset2+l));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+4,
tvb_get_ntohs(tvb, offset2+l)-4,
"Data");
if (i < 4) {
proto_item_append_text(ti, "%s UNKNOWN", c);
}
break;
}
break;
case 3: /* Diversity subobject */
k = tvb_get_guint8(tvb, offset2+l+3);
switch(k) {
default:
case 1:
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2+l, tvb_get_ntohs(tvb, offset2+l),
"Diversity Subobject");
rsvp_gen_uni_subtree =
proto_item_add_subtree(ti2, TREE(TT_GEN_UNI_SUBOBJ));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+2, 1,
"Class: %d (Diversity)", j);
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+3, 1,
"Type: %d", tvb_get_guint8(tvb, offset2+l+3));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l, 2,
"Length: %u",
tvb_get_ntohs(tvb, offset2+l));
m = tvb_get_guint8(tvb, offset2+l+4) >> 4;
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+4, 1,
"Diversity: %d - %s", m,
val_to_str(m, ouni_guni_diversity_str, "Unknown"));
s_len = tvb_get_ntohs(tvb, offset2+l+8);
s_class = tvb_get_guint8(tvb, offset2+l+10);
s_type = tvb_get_guint8(tvb, offset2+l+11);
ti2 = proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+8,
s_len, "Session");
dissect_rsvp_session(ti2, tvb, offset2+l+8, s_len, s_class, s_type,
val_to_str(s_class, rsvp_class_vals, "Unknown"));
offset2 += s_len;
s_len = tvb_get_ntohs(tvb, offset2+l+8);
s_class = tvb_get_guint8(tvb, offset2+l+10);
s_type = tvb_get_guint8(tvb, offset2+l+11);
ti2 = proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+8,
s_len, "Template");
dissect_rsvp_template_filter(ti2, tvb, offset2+l+8, s_len, s_class, s_type,
val_to_str(s_class, rsvp_class_vals, "Unknown"));
if (i < 4) {
proto_item_append_text(ti, "Diversity");
}
break;
}
break;
case 4: /* Egress Label */
k = tvb_get_guint8(tvb, offset2+l+3);
switch(k) {
default:
case 1:
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2+l, tvb_get_ntohs(tvb, offset2+l),
"Egress Label Subobject");
rsvp_gen_uni_subtree =
proto_item_add_subtree(ti2, TREE(TT_GEN_UNI_SUBOBJ));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+2, 1,
"Class: %d (Egress Label)", j);
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+3, 1,
"Type: %d", tvb_get_guint8(tvb, offset2+l+3));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l, 2,
"Length: %u",
tvb_get_ntohs(tvb, offset2+l));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+4, 1,
"Direction: %s",
decode_boolean_bitfield(
tvb_get_guint8(tvb, offset2+l+4), 0x80, 8,
"U: 1 - Upstream label/port ID",
"U: 0 - Downstream label/port ID"));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+7, 1,
"Label type: %u", tvb_get_guint8(tvb, offset2+l+7));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+8, 4,
"Logical Port ID: %u", tvb_get_ntohl(tvb, offset2+l+8));
proto_item_append_text(ti2, ": %s, Label type %d, Port ID %d, Label ",
tvb_get_guint8(tvb, offset2+l+4) & 0x80 ?
"Upstream" : "Downstream",
tvb_get_guint8(tvb, offset2+l+7),
tvb_get_ntohl(tvb, offset2+l+8));
for (j=12; j < tvb_get_ntohs(tvb, offset2+l); j+=4) {
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+8, 4,
"Label: %u", tvb_get_ntohl(tvb, offset2+l+j));
proto_item_append_text(ti2, "%u ", tvb_get_ntohl(tvb, offset2+l+j));
}
if (i < 4) {
proto_item_append_text(ti, "Egress Label");
}
break;
}
break;
case 5: /* Service Level */
k = tvb_get_guint8(tvb, offset2+l+3);
switch(k) {
default:
case 1:
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2+l, tvb_get_ntohs(tvb, offset2+l),
"Service Level Subobject");
rsvp_gen_uni_subtree =
proto_item_add_subtree(ti2, TREE(TT_GEN_UNI_SUBOBJ));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+2, 1,
"Class: %d (Egress Label)", j);
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+3, 1,
"Type: %d", tvb_get_guint8(tvb, offset2+l+3));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l, 2,
"Length: %u",
tvb_get_ntohs(tvb, offset2+l));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+4, 1,
"Service Level: %u", tvb_get_guint8(tvb, offset2+l+4));
proto_item_append_text(ti2, ": %u", tvb_get_guint8(tvb, offset2+l+4));
if (i < 4) {
proto_item_append_text(ti, "Service Level %d", tvb_get_guint8(tvb, offset2+l+4));
}
break;
}
break;
default: /* Unknown subobject */
ti2 = proto_tree_add_text(rsvp_object_tree, tvb,
offset2+l,
tvb_get_ntohs(tvb, offset2+l),
"Unknown subobject: %u",
j);
rsvp_gen_uni_subtree =
proto_item_add_subtree(ti2, TREE(TT_GEN_UNI_SUBOBJ));
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l, 1,
"Type: %u (Unknown)", j);
proto_tree_add_text(rsvp_gen_uni_subtree, tvb, offset2+l+1, 1,
"Length: %u",
tvb_get_guint8(tvb, offset2+l+1));
}
l += tvb_get_guint8(tvb, offset2+l+1);
if (l < mylen) {
if (i < 4)
proto_item_append_text(ti, ", ");
else if (i==4)
proto_item_append_text(ti, "...");
}
}
break;
}
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, mylen,
"Data (%d bytes)", mylen);
break;
}
}
/*------------------------------------------------------------------------------
* RESTART CAPABILITY
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_restart_cap (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_RESTART_CAP));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_item_set_text(ti, "RESTART CAPABILITY: ");
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Restart Time: %d ms",
tvb_get_ntohl(tvb, offset2));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 4,
"Recovery Time: %d ms",
tvb_get_ntohl(tvb, offset2+4));
proto_item_append_text(ti, "Restart Time: %d ms. Recovery Time: %d ms.",
tvb_get_ntohl(tvb, offset2), tvb_get_ntohl(tvb, offset2+4));
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* PROTECTION INFORMATION
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_protection_info (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
int offset2 = offset + 4;
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_PROTECTION_INFO));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_item_set_text(ti, "PROTECTION_INFO: ");
switch(type) {
case 1:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1 - IPv4");
proto_tree_add_text(rsvp_object_tree, tvb, offset2, 4,
"Router ID: %s",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)));
proto_tree_add_text(rsvp_object_tree, tvb, offset2+4, 4,
"Interface ID: %u", tvb_get_ntohl(tvb, offset2+4));
proto_item_append_text(ti, "Router-ID %s, Interface-ID %d",
ip_to_str(tvb_get_ptr(tvb, offset2, 4)),
tvb_get_ntohl(tvb, offset2+4));
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* FAST REROUTE
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_fast_reroute (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
proto_tree *rsvp_object_tree;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_FAST_REROUTE));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_item_set_text(ti, "FAST_REROUTE: ");
switch(type) {
case 1:
case 7:
if ((type==1 && obj_length!=24) || (type==7 && obj_length!=20)) {
proto_tree_add_text(rsvp_object_tree, tvb, offset, obj_length,
"<<<Invalid length: cannot decode>>>");
proto_item_append_text(ti, "Invalid length");
break;
}
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: 1");
proto_tree_add_text(rsvp_object_tree, tvb, offset+4, 1,
"Setup Priority: %d", tvb_get_guint8(tvb, offset+4));
proto_tree_add_text(rsvp_object_tree, tvb, offset+5, 1,
"Hold Priority: %d", tvb_get_guint8(tvb, offset+5));
proto_tree_add_text(rsvp_object_tree, tvb, offset+6, 1,
"Hop Limit: %d", tvb_get_guint8(tvb, offset+6));
proto_tree_add_text(rsvp_object_tree, tvb, offset+7, 1,
"Flags: %d", tvb_get_guint8(tvb, offset+7));
proto_tree_add_text(rsvp_object_tree, tvb, offset+8, 4,
"Bandwidth: %.10g", tvb_get_ntohieee_float(tvb, offset+8));
proto_tree_add_text(rsvp_object_tree, tvb, offset+12, 4,
"Exclude-Any: 0x%0x", tvb_get_ntohl(tvb, offset+12));
proto_tree_add_text(rsvp_object_tree, tvb, offset+16, 4,
"Include-Any: 0x%0x", tvb_get_ntohl(tvb, offset+16));
if (type==1) {
proto_tree_add_text(rsvp_object_tree, tvb, offset+20, 4,
"Include-All: 0x%0x", tvb_get_ntohl(tvb, offset+20));
}
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset+4, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* DETOUR
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_detour (proto_tree *ti, tvbuff_t *tvb,
int offset, int obj_length,
int class, int type,
char *type_str)
{
proto_tree *rsvp_object_tree;
int remaining_length, count;
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_DETOUR));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_item_set_text(ti, "FAST_REROUTE: ");
switch(type) {
case 7:
for (remaining_length = obj_length - 4, count = 1;
remaining_length > 0; remaining_length -= 8, count++) {
if (remaining_length < 8) {
proto_tree_add_text(rsvp_object_tree, tvb, offset+remaining_length,
obj_length-remaining_length,
"<<<Invalid length: cannot decode>>>");
proto_item_append_text(ti, "Invalid length");
break;
}
proto_tree_add_text(rsvp_object_tree, tvb, offset+4+remaining_length, 4,
"PLR ID %d: %s", count,
ip_to_str(tvb_get_ptr(tvb, offset+4+remaining_length, 4)));
proto_tree_add_text(rsvp_object_tree, tvb, offset+4+remaining_length, 4,
"Avoid Node ID %d: %s", count,
ip_to_str(tvb_get_ptr(tvb, offset+4+remaining_length, 4)));
}
break;
default:
proto_tree_add_text(rsvp_object_tree, tvb, offset+3, 1,
"C-type: Unknown (%u)",
type);
proto_tree_add_text(rsvp_object_tree, tvb, offset+4, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
}
/*------------------------------------------------------------------------------
* Dissect a single RSVP message in a tree
*------------------------------------------------------------------------------*/
static void
dissect_rsvp_msg_tree(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,
int tree_mode)
{
proto_tree *rsvp_tree = NULL;
proto_tree *rsvp_header_tree;
proto_tree *rsvp_object_tree;
proto_tree *ti;
guint16 cksum, computed_cksum;
vec_t cksum_vec[1];
int offset = 0;
int len;
guint8 ver_flags;
guint8 message_type;
int session_off, tempfilt_off;
int msg_length;
int obj_length;
int offset2;
offset = 0;
len = 0;
ver_flags = tvb_get_guint8(tvb, 0);
msg_length = tvb_get_ntohs(tvb, 6);
message_type = tvb_get_guint8(tvb, 1);
ti = proto_tree_add_item(tree, proto_rsvp, tvb, offset, msg_length,
FALSE);
rsvp_tree = proto_item_add_subtree(ti, tree_mode);
proto_item_append_text(rsvp_tree, ": ");
proto_item_append_text(rsvp_tree, val_to_str(message_type, message_type_vals,
"Unknown (%u). "));
find_rsvp_session_tempfilt(tvb, 0, &session_off, &tempfilt_off);
if (session_off)
proto_item_append_text(rsvp_tree, summary_session(tvb, session_off));
if (tempfilt_off)
proto_item_append_text(rsvp_tree, summary_template(tvb, tempfilt_off));
ti = proto_tree_add_text(rsvp_tree, tvb, offset, 8, "RSVP Header. %s",
val_to_str(message_type, message_type_vals,
"Unknown Message (%u). "));
rsvp_header_tree = proto_item_add_subtree(ti, TREE(TT_HDR));
proto_tree_add_text(rsvp_header_tree, tvb, offset, 1, "RSVP Version: %u",
(ver_flags & 0xf0)>>4);
proto_tree_add_text(rsvp_header_tree, tvb, offset, 1, "Flags: %02x",
ver_flags & 0xf);
proto_tree_add_uint(rsvp_header_tree, rsvp_filter[RSVPF_MSG], tvb,
offset+1, 1, message_type);
switch (RSVPF_MSG + message_type) {
case RSVPF_PATH:
case RSVPF_RESV:
case RSVPF_PATHERR:
case RSVPF_RESVERR:
case RSVPF_PATHTEAR:
case RSVPF_RESVTEAR:
case RSVPF_RCONFIRM:
case RSVPF_RTEARCONFIRM:
case RSVPF_BUNDLE:
case RSVPF_ACK:
case RSVPF_SREFRESH:
case RSVPF_HELLO:
proto_tree_add_boolean_hidden(rsvp_header_tree, rsvp_filter[RSVPF_MSG + message_type], tvb,
offset+1, 1, 1);
break;
default:
proto_tree_add_protocol_format(rsvp_header_tree, proto_malformed, tvb, offset+1, 1,
"Invalid message type: %u", message_type);
return;
}
cksum = tvb_get_ntohs(tvb, offset+2);
if (!pinfo->fragmented && (int) tvb_length(tvb) >= msg_length) {
/* The packet isn't part of a fragmented datagram and isn't
truncated, so we can checksum it. */
cksum_vec[0].ptr = tvb_get_ptr(tvb, 0, msg_length);
cksum_vec[0].len = msg_length;
computed_cksum = in_cksum(&cksum_vec[0], 1);
if (computed_cksum == 0) {
proto_tree_add_text(rsvp_header_tree, tvb, offset+2, 2,
"Message Checksum: 0x%04x (correct)",
cksum);
} else {
proto_tree_add_text(rsvp_header_tree, tvb, offset+2, 2,
"Message Checksum: 0x%04x (incorrect, should be 0x%04x)",
cksum,
in_cksum_shouldbe(cksum, computed_cksum));
}
} else {
proto_tree_add_text(rsvp_header_tree, tvb, offset+2, 2,
"Message Checksum: 0x%04x",
cksum);
}
proto_tree_add_text(rsvp_header_tree, tvb, offset+4, 1,
"Sending TTL: %u",
tvb_get_guint8(tvb, offset+4));
proto_tree_add_text(rsvp_header_tree, tvb, offset+6, 2,
"Message length: %u", msg_length);
offset = 8;
len = 8;
if (message_type == RSVP_MSG_BUNDLE) {
/* Bundle message. Dissect component messages */
if (rsvp_bundle_dissect) {
int len = 8;
while (len < msg_length) {
gint sub_len;
tvbuff_t *tvb_sub;
sub_len = tvb_get_ntohs(tvb, len+6);
tvb_sub = tvb_new_subset(tvb, len, sub_len, sub_len);
dissect_rsvp_msg_tree(tvb_sub, pinfo, rsvp_tree, TREE(TT_BUNDLE_COMPMSG));
len += sub_len;
}
} else {
proto_tree_add_text(rsvp_tree, tvb, offset, msg_length - len,
"Bundle Component Messages Not Dissected");
}
return;
}
while (len < msg_length) {
guint8 class;
guint8 type;
char *type_str;
obj_length = tvb_get_ntohs(tvb, offset);
class = tvb_get_guint8(tvb, offset+2);
type = tvb_get_guint8(tvb, offset+3);
type_str = val_to_str(class, rsvp_class_vals, "Unknown");
proto_tree_add_uint_hidden(rsvp_tree, rsvp_filter[RSVPF_OBJECT], tvb,
offset, obj_length, class);
ti = proto_tree_add_item(rsvp_tree, rsvp_filter[rsvp_class_to_filter_num(class)],
tvb, offset, obj_length, FALSE);
offset2 = offset+4;
switch(class) {
case RSVP_CLASS_SESSION:
dissect_rsvp_session(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_HOP:
dissect_rsvp_hop(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_TIME_VALUES:
dissect_rsvp_time_values(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_ERROR:
dissect_rsvp_error(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_SCOPE:
dissect_rsvp_scope(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_STYLE:
dissect_rsvp_style(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_CONFIRM:
dissect_rsvp_confirm(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_SENDER_TEMPLATE:
case RSVP_CLASS_FILTER_SPEC:
dissect_rsvp_template_filter(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_SENDER_TSPEC:
dissect_rsvp_tspec(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_FLOWSPEC:
dissect_rsvp_flowspec(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_ADSPEC:
dissect_rsvp_adspec(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_INTEGRITY:
dissect_rsvp_integrity(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_POLICY:
dissect_rsvp_policy(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_LABEL_REQUEST:
dissect_rsvp_label_request(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_UPSTREAM_LABEL:
case RSVP_CLASS_SUGGESTED_LABEL:
case RSVP_CLASS_LABEL:
dissect_rsvp_label(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_SESSION_ATTRIBUTE:
dissect_rsvp_session_attribute(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_EXPLICIT_ROUTE:
dissect_rsvp_explicit_route(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_RECORD_ROUTE:
dissect_rsvp_record_route(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_MESSAGE_ID:
dissect_rsvp_message_id(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_MESSAGE_ID_ACK:
dissect_rsvp_message_id_ack(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_MESSAGE_ID_LIST:
dissect_rsvp_message_id_list(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_HELLO:
dissect_rsvp_hello(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_DCLASS:
dissect_rsvp_dclass(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_ADMIN_STATUS:
dissect_rsvp_admin_status(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_LSP_TUNNEL_IF_ID:
dissect_rsvp_lsp_tunnel_if_id(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_GENERALIZED_UNI:
dissect_rsvp_gen_uni(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_RESTART_CAP:
dissect_rsvp_restart_cap(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_PROTECTION:
dissect_rsvp_protection_info(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_FAST_REROUTE:
dissect_rsvp_fast_reroute(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_DETOUR:
dissect_rsvp_detour(ti, tvb, offset, obj_length, class, type, type_str);
break;
case RSVP_CLASS_NULL:
default:
rsvp_object_tree = proto_item_add_subtree(ti, TREE(TT_UNKNOWN_CLASS));
proto_tree_add_text(rsvp_object_tree, tvb, offset, 2,
"Length: %u", obj_length);
proto_tree_add_text(rsvp_object_tree, tvb, offset+2, 1,
"Class number: %u - %s",
class, type_str);
proto_tree_add_text(rsvp_object_tree, tvb, offset2, obj_length - 4,
"Data (%d bytes)", obj_length - 4);
break;
}
if (obj_length == 0)
break;
offset += obj_length;
len += obj_length;
}
}
/*------------------------------------------------------------------------------
* The main loop
*------------------------------------------------------------------------------*/
static void
dissect_rsvp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
{
guint8 ver_flags;
guint8 message_type;
int msg_length;
int session_off, tempfilt_off;
if (check_col(pinfo->cinfo, COL_PROTOCOL))
col_set_str(pinfo->cinfo, COL_PROTOCOL, "RSVP");
if (check_col(pinfo->cinfo, COL_INFO))
col_clear(pinfo->cinfo, COL_INFO);
ver_flags = tvb_get_guint8(tvb, 0);
message_type = tvb_get_guint8(tvb, 1);
msg_length = tvb_get_ntohs(tvb, 6);
if (check_col(pinfo->cinfo, COL_INFO)) {
col_add_str(pinfo->cinfo, COL_INFO,
val_to_str(message_type, message_type_vals, "Unknown (%u). "));
find_rsvp_session_tempfilt(tvb, 0, &session_off, &tempfilt_off);
if (session_off)
col_append_str(pinfo->cinfo, COL_INFO, summary_session(tvb, session_off));
if (tempfilt_off)
col_append_str(pinfo->cinfo, COL_INFO, summary_template(tvb, tempfilt_off));
}
if (check_col(pinfo->cinfo, COL_INFO)) {
col_add_str(pinfo->cinfo, COL_INFO,
val_to_str(message_type, message_type_vals, "Unknown (%u). "));
if (message_type == RSVP_MSG_BUNDLE) {
col_add_str(pinfo->cinfo, COL_INFO,
rsvp_bundle_dissect ?
"Component Messages Dissected" :
"Component Messages Not Dissected");
} else {
find_rsvp_session_tempfilt(tvb, 0, &session_off, &tempfilt_off);
if (session_off)
col_append_str(pinfo->cinfo, COL_INFO, summary_session(tvb, session_off));
if (tempfilt_off)
col_append_str(pinfo->cinfo, COL_INFO, summary_template(tvb, tempfilt_off));
}
}
if (tree) {
dissect_rsvp_msg_tree(tvb, pinfo, tree, TREE(TT_RSVP));
}
}
static void
register_rsvp_prefs (void)
{
module_t *rsvp_module;
rsvp_module = prefs_register_protocol(proto_rsvp, NULL);
prefs_register_bool_preference(
rsvp_module, "process_bundle",
"Dissect sub-messages in BUNDLE message",
"Specifies whether Ethereal should decode and display sub-messages within BUNDLE messages",
&rsvp_bundle_dissect);
}
void
proto_register_rsvp(void)
{
gint i;
/* Build the tree array */
for (i=0; i<TT_MAX; i++)
ett_tree[i] = &(ett_treelist[i]);
proto_rsvp = proto_register_protocol("Resource ReserVation Protocol (RSVP)",
"RSVP", "rsvp");
proto_register_field_array(proto_rsvp, rsvpf_info, array_length(rsvpf_info));
proto_register_subtree_array(ett_tree, array_length(ett_tree));
register_rsvp_prefs();
}
void
proto_reg_handoff_rsvp(void)
{
dissector_handle_t rsvp_handle;
rsvp_handle = create_dissector_handle(dissect_rsvp, proto_rsvp);
dissector_add("ip.proto", IP_PROTO_RSVP, rsvp_handle);
}
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