2210 lines
83 KiB
C
2210 lines
83 KiB
C
/* packet-pce.c
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* Routines for PCE packet disassembly
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*
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* (c) Copyright 2007 Silvia Cristina Tejedor <silviacristina.tejedor@gmail.com>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glib.h>
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#include <epan/packet.h>
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#include <epan/emem.h>
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#include <epan/dissectors/packet-tcp.h>
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#include <epan/prefs.h>
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#include "packet-frame.h"
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/*differents types of objects*/
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#define PCE_OPEN_OBJ 1
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#define PCE_RP_OBJ 2
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#define PCE_NO_PATH_OBJ 3
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#define PCE_END_POINT_OBJ 4
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#define PCE_BANDWIDTH_OBJ 5
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#define PCE_METRIC_OBJ 6
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#define PCE_EXPLICIT_ROUTE_OBJ 7
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#define PCE_RECORD_ROUTE_OBJ 8
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#define PCE_LSPA_OBJ 9
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#define PCE_IRO_OBJ 10
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#define PCE_SVEC_OBJ 11
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#define PCE_NOTIFICATION_OBJ 12
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#define PCE_PCEP_ERROR_OBJ 13
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#define PCE_LOAD_BALANCING_OBJ 14
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#define PCE_CLOSE_OBJ 15
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#define NO_DEFINED_OBJ 16
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#define PCE_XRO_OBJ 17
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/*Subobjects of EXPLICIT ROUTE Object*/
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#define PCE_SUB_IPv4 1
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#define PCE_SUB_IPv6 2
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#define PCE_SUB_LABEL_CONTROL 3
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#define PCE_SUB_UNNUMB_INTERFACE_ID 4
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#define PCE_SUB_SRLG 5
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#define PCE_SUB_AUTONOMOUS_SYS_NUM 32
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#define PCE_SUB_EXRS 33
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#define PCE_SUB_AUTONOMOUS_SYS_NUM_XRO 4
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#define PCE_SUB_UNNUMB_INTERFACE_ID_XRO 3
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/*Possible values of the NI in the NO-PATH object*/
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#define NO_SATISFYING 0
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#define CHAIN_BROKEN 1
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/*Possible values of "Type (T)" in the METRIC object */
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#define NO_DEFINED 0
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#define IGP_METRIC 1
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#define TE_METRIC 2
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#define HOP_COUNTS 3
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/*Possible values of L in the ERO and IRO objects */
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#define STRICT_HOP 0
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#define LOOSE_HOP 1
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/*Possible values of U in the ERO and RRO objects */
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#define DOWNSTREAM_LABEL 0
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#define UPSTREAM_LABEL 1
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/*Possible values of Notification Type */
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#define NOT_REQ_CANCEL 1
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#define PCE_CONGESTION 2
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/*Possible values of Notification Value for NT=1*/
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#define NOTI_PCC_CANCEL_REQ 1
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#define NOTI_PCE_CANCEL_REQ 2
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/*Possible values of Notification Value for NT=2*/
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#define NOTI_PCE_CONGEST 1
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#define NOTI_PCE_NO_CONGEST 2
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/*Possible types of errors */
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#define ESTABLISH_FAILURE 1
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#define CAP_NOT_SUPPORTED 2
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#define UNKNOWN_OBJ 3
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#define NOT_SUPP_OBJ 4
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#define POLICY_VIOLATION 5
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#define MANDATORY_OBJ_MIS 6
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#define SYNCH_PCREQ_MIS 7
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#define UNKNOWN_REQ_REF 8
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#define ATTEMPT_2_SESSION 9
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#define UNRECO_IRO_SUBOBJ 11
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#define UNRECO_EXRS_SUBOBJ 12
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/*Different values of errors type=1*/
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#define RX_MALFORM_PKT 1
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#define NO_OPEN_MSG 2
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#define UNACEP_NO_NEGO_SSESION 3
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#define UNACEP_NEG_SESSION 4
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#define TWO_OPEN_MSG_UNACEP 5
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#define RX_PCEERR_UNACEP_SESSION 6
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#define NO_KEEPALIVE_PCEERR 7
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/*Different values of errors type=3*/
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#define UNRECON_OBJ_CLASS 1
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#define UNRECON_OBJ_TYPE 2
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/*Different values of errors type=4*/
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#define NO_SUPP_OBJ 1
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#define NO_SUPP_TYPE 2
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/*Different values of errors type=5*/
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#define C_METRIC_SET 1
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#define O_OBJ_SET 2
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/*Different values of errors type=6*/
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#define RP_OBJ_MISS 1
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#define RRO_OBJ_MISS 2
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#define END_POINT_OBJ_MISS 3
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/*Different values of Reason in the CLOSE object */
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#define NO_EXP_PROV 1
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#define DEADTIME_PROV 2
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#define RECEP_MALFORM_MSG 3
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/*Different values of Attribute in the XRO object */
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#define ATTR_INTERFACE 0
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#define ATTR_NODE 1
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#define ATTR_SRLG 2
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/*Mask for the flags of HEADER of Messages*/
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#define PCE_HDR_MSG_RESERVED 0x1f
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/*Mask for the type of HEADER of Objects*/
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#define MASK_OBJ_TYPE 0xF0
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/*Mask for the flags of HEADER of Objects*/
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#define PCE_HDR_OBJ_RESERVED 0x0C
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#define PCE_HDR_OBJ_P 0x02
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#define PCE_HDR_OBJ_I 0x01
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/*Mask for the flags of OPEN Object*/
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#define PCE_OPEN_RES 0x1F
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/*Mask for the flags of RP Object*/
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#define PCE_RP_PRI 0x000007
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#define PCE_RP_R 0x000008
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#define PCE_RP_B 0x000010
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#define PCE_RP_O 0x000020
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#define PCE_RP_RESERVED 0xFFFFC0
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/*Mask for the flags of NO PATH Object*/
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#define PCE_NO_PATH_C 0x8000
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/*Mask for the flags of METRIC Object*/
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#define PCE_METRIC_C 0x01
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#define PCE_METRIC_B 0x02
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/*Mask for the flags of LSPA Object*/
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#define PCE_LSPA_L 0x01
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/* Mask to differentiate the value of L and Type (Explicit Object)*/
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#define Mask_L 0x80
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#define Mask_Type 0x7f
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#define TCP_PORT_PPCE 1010
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#define IPv4 1
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#define IPv6 2
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/*Mask for the flags os SVEC Object*/
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#define PCE_SVEC_L 0x000001
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#define PCE_SVEC_N 0x000002
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#define PCE_SVEC_S 0x000004
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/*Mask for the flags of XRO Object*/
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#define PCE_XRO_F 0x0001
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/*Mask for the flags of IPv4, IPv6 and UNnumbered InterfaceID Subobjects of RRO Object*/
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#define PCE_SUB_LPA 0x01
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#define PCE_SUB_LPU 0x02
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/*Mask for the flags of Label SubObject*/
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#define PCE_SUB_LABEL_GL 0x01
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static int proto_pce = -1;
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static gint ett_pce = -1;
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static gint ett_pce_hdr = -1;
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static gint pce_hdr_msg_flags_reserved= -1;
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static gint ett_pce_msg_open = -1;
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static gint ett_pce_msg_keepalive = -1;
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static gint ett_pce_msg_request = -1;
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static gint ett_pce_msg_reply = -1;
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static gint ett_pce_msg_notification = -1;
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static gint ett_pce_msg_error = -1;
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static gint ett_pce_msg_close = -1;
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static gint ett_pce_obj_hdr = -1;
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static gint pce_hdr_obj_flags_reserved= -1;
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static gint pce_hdr_obj_flags_p= -1;
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static gint pce_hdr_obj_flags_i= -1;
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static gint ett_pce_obj_open = -1;
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static gint pce_open_flags_res = -1;
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static gint ett_pce_obj_request_parameters = -1;
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static gint pce_rp_flags_pri = -1;
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static gint pce_rp_flags_r = -1;
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static gint pce_rp_flags_b = -1;
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static gint pce_rp_flags_o = -1;
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static gint pce_rp_flags_reserved = -1;
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static gint ett_pce_obj_no_path = -1;
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static gint pce_no_path_flags_c = -1;
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static gint ett_pce_obj_end_point = -1;
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static gint ett_pce_obj_bandwidth = -1;
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static gint ett_pce_obj_metric = -1;
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static gint pce_metric_flags_c = -1;
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static gint pce_metric_flags_b = -1;
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static gint ett_pce_obj_explicit_route = -1;
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static gint ett_pce_obj_record_route = -1;
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static gint ett_pce_obj_lspa = -1;
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static gint pce_lspa_flags_l= -1;
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static gint ett_pce_obj_iro = -1;
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static gint ett_pce_obj_svec = -1;
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static gint pce_svec_flags_l= -1;
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static gint pce_svec_flags_n= -1;
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static gint pce_svec_flags_s= -1;
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static gint ett_pce_obj_notification = -1;
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static gint ett_pce_obj_error = -1;
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static gint ett_pce_obj_load_balancing = -1;
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static gint ett_pce_obj_close = -1;
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static gint ett_pce_obj_xro = -1;
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static gint pce_xro_flags_f= -1;
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static gint pce_subobj_flags_lpa= -1;
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static gint pce_subobj_flags_lpu= -1;
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static gint pce_subobj_label_flags_gl= -1;
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static dissector_table_t pce_dissector_table;
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static dissector_handle_t data_handle;
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/* PCE message types.*/
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typedef enum {
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PCE_MSG_NO_VALID,
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PCE_MSG_OPEN,
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PCE_MSG_KEEPALIVE,
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PCE_MSG_PATH_COMPUTATION_REQUEST,
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PCE_MSG_PATH_COMPUTATION_REPLY,
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PCE_MSG_NOTIFICATION,
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PCE_MSG_ERROR,
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PCE_MSG_CLOSE
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} pce_message_types;
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static const value_string message_type_vals[] = {
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{PCE_MSG_OPEN, "OPEN MESSAGE" },
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{PCE_MSG_KEEPALIVE, "KEEPALIVE MESSAGE" },
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{PCE_MSG_PATH_COMPUTATION_REQUEST, "PATH COMPUTATION REQUEST MESSAGE" },
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{PCE_MSG_PATH_COMPUTATION_REPLY, "PATH COMPUTATION REPLY MESSAGE" },
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{PCE_MSG_NOTIFICATION, "NOTIFICATION MESSAGE" },
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{PCE_MSG_ERROR, "ERROR MESSAGE" },
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{PCE_MSG_CLOSE, "CLOSE MESSAGE" },
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{0, NULL }
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};
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static const value_string pce_class_vals[] = {
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{PCE_OPEN_OBJ, "OPEN OBJECT" },
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{PCE_RP_OBJ, "RP OBJECT" },
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{PCE_NO_PATH_OBJ, "NO-PATH OBJECT" },
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{PCE_END_POINT_OBJ, "END-POINT OBJECT" },
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{PCE_BANDWIDTH_OBJ, "BANDWIDTH OBJECT" },
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{PCE_METRIC_OBJ, "METRIC OBJECT" },
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{PCE_EXPLICIT_ROUTE_OBJ, "EXPLICIT ROUTE OBJECT (ERO)" },
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{PCE_RECORD_ROUTE_OBJ, "RECORD ROUTE OBJECT (RRO)" },
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{PCE_LSPA_OBJ, "LSPA OBJECT" },
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{PCE_IRO_OBJ, "IRO OBJECT" },
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{PCE_SVEC_OBJ, "SVEC OBJECT" },
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{PCE_NOTIFICATION_OBJ, "NOTIFICATION OBJECT" },
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{PCE_PCEP_ERROR_OBJ, "PCEP ERROR OBJECT" },
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{PCE_LOAD_BALANCING_OBJ, "LOAD BALANCING OBJECT" },
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{PCE_CLOSE_OBJ, "CLOSE OBJECT" },
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{NO_DEFINED_OBJ, "Non Defined OBJECT" },
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{PCE_XRO_OBJ, "EXCLUDE ROUTE OBJECT (XRO)" },
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{0, NULL }
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};
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static const value_string pce_subobj_vals[] = {
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{PCE_SUB_IPv4, "SUBOBJECT IPv4" },
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{PCE_SUB_IPv6, "SUBOBJECT IPv6" },
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{PCE_SUB_LABEL_CONTROL, "SUBOBJECT LABEL" },
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{PCE_SUB_UNNUMB_INTERFACE_ID, "SUBOBJECT UNNUMBERED INTERFACE-ID" },
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{PCE_SUB_SRLG, "SUBOBJECT SRLG" },
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{PCE_SUB_AUTONOMOUS_SYS_NUM, "SUBOBJECT AUTONOMOUS SYSTEM NUMBER" },
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{0, NULL }
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};
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static const value_string pce_subobj_xro_vals[] = {
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{PCE_SUB_IPv4, "SUBOBJECT IPv4" },
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{PCE_SUB_IPv6, "SUBOBJECT IPv6" },
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{PCE_SUB_UNNUMB_INTERFACE_ID_XRO,"SUBOBJECT UNNUMBERED INTERFACE-ID" },
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{PCE_SUB_AUTONOMOUS_SYS_NUM_XRO,"SUBOBJECT AUTONOMOUS SYSTEM NUMBER" },
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{PCE_SUB_SRLG, "SUBOBJECT SRLG" },
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{0, NULL }
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};
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/*In the NO-PATH Object the two different possibilities that NI can have*/
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static const value_string pce_no_path_obj_vals[] = {
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{NO_SATISFYING, "Nature of Issue: No path satisfying the set of constraints could be found (0x0)" },
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{CHAIN_BROKEN, "Nature of Issue: PCE Chain Broken (0x1)" },
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{0, NULL }
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};
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/*Different values of "Type (T)" in the METRIC Obj */
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static const value_string pce_metric_obj_vals[] = {
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{NO_DEFINED, "Type not defined" },
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{IGP_METRIC, "Type: IGP Metric (T=1)" },
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{TE_METRIC, "Type: TE Metric (T=2)" },
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{HOP_COUNTS, "Type: Hop Counts (T=3)" },
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{0, NULL }
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};
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/*Different values for (L) in the ERO and IRO Objs */
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static const value_string pce_route_l_obj_vals[] = {
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{STRICT_HOP, "L=0 Strict Hop in the Explicit Route" },
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{LOOSE_HOP, "L=1 Loose Hop in the Explicit Route" },
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{0, NULL }
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};
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/*Different values of the direction of the label (U) in the ERO and RRO Objs */
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static const value_string pce_route_u_obj_vals[] = {
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{DOWNSTREAM_LABEL, "U=0 S Downstream Label" },
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{UPSTREAM_LABEL, "U=1 Upstream Label" },
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{0, NULL }
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};
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/*Values of Notification type*/
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static const value_string pce_notification_types_vals[] = {
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{NOT_REQ_CANCEL, "Pending Request Cancelled" },
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{PCE_CONGESTION, "PCE Congestion" },
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{0, NULL }
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};
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/*Values of Notification value for Notification Type=1*/
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static const value_string pce_notification_values1_vals[] = {
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{NOTI_PCC_CANCEL_REQ, "PCC Cancels a set of Pending Request (s)" },
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{NOTI_PCE_CANCEL_REQ, "PCE Cancels a set of Pending Request (s)" },
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{0, NULL }
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};
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/*Values of Notification value for Notification Type=2*/
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static const value_string pce_notification_values2_vals[] = {
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{NOTI_PCE_CONGEST, "PCE in Congested State " },
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{NOTI_PCE_NO_CONGEST, "PCE no Longer in Congested state" },
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{0, NULL }
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};
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/*Values of different types of errors*/
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static const value_string pce_error_types_obj_vals[] = {
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{ESTABLISH_FAILURE, "1 PCEP Session Establishment Failure" },
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{CAP_NOT_SUPPORTED, "2 Capability non supported" },
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{UNKNOWN_OBJ, "3 Unknown Object" },
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{NOT_SUPP_OBJ, "4 Not Supported Object" },
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{POLICY_VIOLATION, "5 Policy Violation" },
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{MANDATORY_OBJ_MIS, "6 Mandatory Object Missing" },
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{SYNCH_PCREQ_MIS, "7 Synchronized Path Computation Request Missing" },
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{UNKNOWN_REQ_REF, "8 Unknown Request Reference" },
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{ATTEMPT_2_SESSION, "9 Attempt to Establish a Second PCEP Session" },
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{UNRECO_IRO_SUBOBJ, "11 Unrecognized IRO Subobject" },
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{UNRECO_EXRS_SUBOBJ, "12 Unrecognized EXRS Subobject" },
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{0, NULL }
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};
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static const value_string pce_close_reason_obj_vals[] = {
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{NO_DEFINED, "Reason = 0 no defined" },
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{NO_EXP_PROV, "Reason = 1 No Explanation Provided " },
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{DEADTIME_PROV, "Reason = 2 Deadtime Expired" },
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{RECEP_MALFORM_MSG, "Reason = 3 Reception of a Malformed PCEP Message" },
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{0, NULL }
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};
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static const value_string pce_xro_atribute_obj_vals[] = {
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{ATTR_INTERFACE, "Atribute = 0 Interface" },
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{ATTR_NODE, "Atribute = 1 Node " },
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{ATTR_SRLG, "Atribute = 2 SRLG" },
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{0, NULL }
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};
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/* The PCE filtering keys */
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enum pce_filter_keys{
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PCEF_MSG,
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PCEF_OPEN,
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PCEF_KEEPALIVE,
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PCEF_PATH_COMPUTATION_REQUEST,
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PCEF_PATH_COMPUTATION_REPLY,
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PCEF_NOTIFICATION,
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PCEF_ERROR,
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PCEF_CLOSE,
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PCEF_OBJ_HEADER,
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PCEF_OBJECT,
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PCEF_OBJ_OPEN,
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PCEF_OBJ_RP,
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PCEF_OBJ_NO_PATH,
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PCEF_OBJ_END_POINT,
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PCEF_OBJ_BANDWIDTH,
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PCEF_OBJ_METRIC,
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PCEF_OBJ_EXPLICIT_ROUTE,
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PCEF_OBJ_RECORD_ROUTE,
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PCEF_OBJ_LSPA,
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PCEF_OBJ_IRO,
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PCEF_OBJ_SVEC,
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PCEF_OBJ_NOTIFICATION,
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PCEF_NOTI_TYPE,
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PCEF_NOTI_VAL1,
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PCEF_NOTI_VAL2,
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PCEF_OBJ_PCEP_ERROR,
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PCEF_ERROR_TYPE,
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PCEF_OBJ_LOAD_BALANCING,
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PCEF_OBJ_CLOSE,
|
|
PCEF_OBJ_NO_DEF,
|
|
PCEF_OBJ_XRO,
|
|
PCEF_SUBOBJ,
|
|
PCEF_SUBOBJ_IPv4,
|
|
PCEF_SUBOBJ_IPv6,
|
|
PCEF_SUBOBJ_LABEL_CONTROL,
|
|
PCEF_SUBOBJ_UNNUM_INTERFACEID,
|
|
PCEF_SUBOBJ_AUTONOMOUS_SYS_NUM,
|
|
PCEF_SUBOBJ_SRLG,
|
|
PCEF_SUBOBJ_EXRS,
|
|
PCEF_SUBOBJ_XRO,
|
|
PCEF_SUB_XRO_ATRIB,
|
|
|
|
PCEF_MAX
|
|
|
|
};
|
|
|
|
|
|
/*Registering data structures*/
|
|
|
|
static gint *ett[] = {
|
|
&ett_pce,
|
|
&ett_pce_hdr,
|
|
&ett_pce_msg_open,
|
|
&ett_pce_msg_keepalive,
|
|
&ett_pce_msg_request,
|
|
&ett_pce_msg_reply,
|
|
&ett_pce_msg_notification,
|
|
&ett_pce_msg_error,
|
|
&ett_pce_msg_close,
|
|
&ett_pce_obj_hdr,
|
|
&ett_pce_obj_open,
|
|
&ett_pce_obj_request_parameters,
|
|
&ett_pce_obj_no_path,
|
|
&ett_pce_obj_end_point,
|
|
&ett_pce_obj_bandwidth,
|
|
&ett_pce_obj_metric,
|
|
&ett_pce_obj_explicit_route,
|
|
&ett_pce_obj_record_route,
|
|
&ett_pce_obj_lspa,
|
|
&ett_pce_obj_iro,
|
|
&ett_pce_obj_svec,
|
|
&ett_pce_obj_notification,
|
|
&ett_pce_obj_error,
|
|
&ett_pce_obj_load_balancing,
|
|
&ett_pce_obj_close,
|
|
&ett_pce_obj_xro
|
|
};
|
|
|
|
/*Registering data structures*/
|
|
|
|
static int pce_filter[PCEF_MAX];
|
|
|
|
static hf_register_info pcef_info[] = {
|
|
|
|
/* Message type number */
|
|
{&pce_filter[PCEF_MSG],
|
|
{ "Message Type", "pce.msg", FT_UINT8, BASE_DEC, VALS(message_type_vals), 0x0,
|
|
"", HFILL }},
|
|
{ &pce_hdr_msg_flags_reserved,
|
|
{ "Reserved Flags", "pce.hdr.msg.flags.reserved", FT_BOOLEAN, 8, TFS(&tfs_set_notset), PCE_HDR_MSG_RESERVED,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OPEN],
|
|
{ "Open Message", "pce.msg.open", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_KEEPALIVE],
|
|
{ "Keepalive Message", "pce.msg.keepalive", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_PATH_COMPUTATION_REQUEST],
|
|
{ "Path Computation Request Message", "pce.msg.path.computation.request", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_PATH_COMPUTATION_REPLY],
|
|
{ "Path Computation Reply Mesagge", "pce.msg.path.computation.reply", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_NOTIFICATION],
|
|
{ "Notification Message", "pce.msg.notification", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_ERROR],
|
|
{ "Error Message", "pce.msg.error", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_CLOSE],
|
|
{ "Close Message", "pce.msg.close", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
/*Object header*/
|
|
{ &pce_hdr_obj_flags_reserved,
|
|
{ "Reserved Flags", "pce.hdr.obj.flags.reserved", FT_BOOLEAN, 4, TFS(&tfs_set_notset), PCE_HDR_OBJ_RESERVED,
|
|
"", HFILL }},
|
|
{ &pce_hdr_obj_flags_p,
|
|
{ "Processing-Rule (P)", "pce.hdr.obj.flags.p", FT_BOOLEAN, 4, TFS(&tfs_set_notset), PCE_HDR_OBJ_P,
|
|
"", HFILL }},
|
|
{ &pce_hdr_obj_flags_i,
|
|
{ "Ignore (I)", "pce.hdr.obj.flags.i", FT_BOOLEAN, 4, TFS(&tfs_set_notset), PCE_HDR_OBJ_I,
|
|
"", HFILL }},
|
|
/* Object class */
|
|
{&pce_filter[PCEF_OBJECT],
|
|
{ "Object Class", "pce.object", FT_UINT32, BASE_DEC, VALS(pce_class_vals), 0x0,
|
|
"", HFILL }},
|
|
|
|
/* Object types */
|
|
{&pce_filter[PCEF_OBJ_OPEN],
|
|
{ "PCE OPEN OBJECT Body", "pce.obj.open", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{ &pce_open_flags_res,
|
|
{ "Reserved Flags", "pce.open.flags.res", FT_BOOLEAN, 8, TFS(&tfs_set_notset), PCE_OPEN_RES,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_RP],
|
|
{ "PCE RP OBJECT Body", "pce.obj.rp", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{ &pce_rp_flags_reserved,
|
|
{ "Reserved Flags", "pce.rp.flags.reserved", FT_BOOLEAN, 24, TFS(&tfs_set_notset), PCE_RP_RESERVED,
|
|
"", HFILL }},
|
|
{ &pce_rp_flags_pri,
|
|
{ "Priority (PRI)", "pce.rp.flags.pri", FT_BOOLEAN, 24, TFS(&tfs_on_off), PCE_RP_PRI,
|
|
"", HFILL }},
|
|
{ &pce_rp_flags_r,
|
|
{ "Reoptimization (R)", "pce.rp.flags.r", FT_BOOLEAN, 24, TFS(&tfs_set_notset), PCE_RP_R,
|
|
"", HFILL }},
|
|
{ &pce_rp_flags_b,
|
|
{ "Bi-directional (L)", "pce.rp.flags.b", FT_BOOLEAN, 24, TFS(&tfs_set_notset), PCE_RP_B,
|
|
"", HFILL }},
|
|
{ &pce_rp_flags_o,
|
|
{ "Strict/Loose (L)", "pce.rp.flags.o", FT_BOOLEAN, 24, TFS(&tfs_set_notset), PCE_RP_O,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_NO_PATH],
|
|
{ "PCE NO PATH OBJECT Body", "pce.obj.nopath", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{ &pce_no_path_flags_c,
|
|
{ "C", "pce.no.path.flags.c", FT_BOOLEAN, 16, TFS(&tfs_set_notset), PCE_NO_PATH_C,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_END_POINT],
|
|
{ "PCE END POINT OBJECT Body", "pce.obj.endpoint", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_BANDWIDTH],
|
|
{ "PCE BANDWIDTH OBJECT Body", "pce.obj.bandwidth", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_METRIC],
|
|
{ "PCE METRIC OBJECT Body", "pce.obj.metric", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{ &pce_metric_flags_c,
|
|
{ "Cost (C)", "pce.metric.flags.c", FT_BOOLEAN, 8, TFS(&tfs_set_notset), PCE_METRIC_C,
|
|
"", HFILL }},
|
|
{ &pce_metric_flags_b,
|
|
{ "Bound (B)", "pce.metric.flags.b", FT_BOOLEAN, 8, TFS(&tfs_set_notset), PCE_METRIC_B,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_EXPLICIT_ROUTE],
|
|
{ "PCE EXPLICIT ROUTE OBJECT (ERO) Body", "pce.obj.ero", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_RECORD_ROUTE],
|
|
{ "PCE RECORD ROUTE OBJECT (RRO) Body", "pce.obj.rro", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_LSPA],
|
|
{ "PCE LSPA OBJECT Body", "pce.obj.lspa", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{ &pce_lspa_flags_l,
|
|
{ "Local Protection Desired (L)", "pce.lspa.flags.l", FT_BOOLEAN, 8, TFS(&tfs_set_notset), PCE_LSPA_L,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_IRO],
|
|
{ "PCE IRO OBJECT Body", "pce.obj.iro", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_SVEC],
|
|
{ "PCE SVEC OBJECT Body", "pce.obj.svec", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &pce_svec_flags_l,
|
|
{ "Link diverse (L)", "pce.svec.flags.l", FT_BOOLEAN, 24, TFS(&tfs_set_notset), PCE_SVEC_L,
|
|
"", HFILL }},
|
|
|
|
{ &pce_svec_flags_n,
|
|
{ "Node diverse (N)", "pce.svec.flags.n", FT_BOOLEAN, 24, TFS(&tfs_set_notset), PCE_SVEC_N,
|
|
"", HFILL }},
|
|
|
|
{ &pce_svec_flags_s,
|
|
{ "SRLG diverse (S)", "pce.svec.flags.s", FT_BOOLEAN, 24, TFS(&tfs_set_notset), PCE_SVEC_S,
|
|
"", HFILL }},
|
|
|
|
{&pce_filter[PCEF_OBJ_NOTIFICATION],
|
|
{ "PCE NOTIFICATION OBJECT Body", "pce.obj.notification", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
{&pce_filter[PCEF_NOTI_TYPE],
|
|
{ "Notification Value", "pce.notification.value1", FT_UINT32, BASE_DEC, VALS(pce_notification_types_vals), 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_NOTI_VAL1],
|
|
{ "Notification Type", "pce.notification.type2", FT_UINT32, BASE_DEC, VALS(pce_notification_values1_vals), 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_NOTI_VAL2],
|
|
{ "Notification Type", "pce.notification.type", FT_UINT32, BASE_DEC, VALS(pce_notification_values2_vals), 0x0,
|
|
"", HFILL }},
|
|
|
|
{&pce_filter[PCEF_OBJ_PCEP_ERROR],
|
|
{ "PCE ERROR OBJECT Body", "pce.obj.error", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_ERROR_TYPE],
|
|
{ "Error-Type", "pce.error.type", FT_UINT8, BASE_DEC, VALS(pce_error_types_obj_vals), 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_LOAD_BALANCING],
|
|
{ "PCE LOAD BALANCING OBJECT Body", "pce.obj.load.balancing", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_CLOSE],
|
|
{ "PCE CLOSE OBJECT Body", "pce.obj.close", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_NO_DEF],
|
|
{ "NO DEFINED OBJECT", "pce.obj.no.defined", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_OBJ_XRO],
|
|
{ "PCE EXCLUDE ROUTE OBJECT (XRO) Body", "pce.obj.xro", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
|
|
/*SUbobjects*/
|
|
{&pce_filter[PCEF_SUBOBJ],
|
|
{ "Type", "pce.subobj", FT_UINT8, BASE_DEC, VALS(pce_subobj_vals), 0x0,
|
|
"", HFILL }},
|
|
|
|
{&pce_filter[PCEF_SUBOBJ_IPv4],
|
|
{ "SUBOBJECT: IPv4 Prefix", "pce.subobj.ipv4", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_SUBOBJ_IPv6],
|
|
{ "SUBOBJECT: IPv6 Prefix", "pce.subobj.ipv6", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_SUBOBJ_LABEL_CONTROL],
|
|
{ "SUBOBJECT: Label Control", "pce.subobj.label.control", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_SUBOBJ_UNNUM_INTERFACEID],
|
|
{ "SUBOBJECT: Unnumbered Interface ID", "pce.subobj.unnum.interfaceid", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_SUBOBJ_AUTONOMOUS_SYS_NUM],
|
|
{ "SUBOBJECT: Autonomous System Number", "pce.subobj.auntonomus.sys.num", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_SUBOBJ_SRLG],
|
|
{ "SUBOBJECT: SRLG", "pce.subobj.srlg", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_SUBOBJ_EXRS],
|
|
{ "SUBOBJECT: EXRS", "pce.subobj.exrs", FT_NONE, BASE_NONE, NULL, 0x0,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_SUBOBJ_XRO],
|
|
|
|
{ "Type", "pce.subobj.label", FT_UINT32, BASE_DEC, VALS(pce_subobj_xro_vals), 0x0,
|
|
"", HFILL }},
|
|
{ &pce_xro_flags_f,
|
|
{ "Fail (F)", "pce.xro.flags.f", FT_BOOLEAN, 16, TFS(&tfs_set_notset), PCE_XRO_F,
|
|
"", HFILL }},
|
|
{&pce_filter[PCEF_SUB_XRO_ATRIB],
|
|
{ "Attribute", "pce.xro.sub.atribute", FT_UINT32, BASE_DEC, VALS(pce_xro_atribute_obj_vals), 0x0,
|
|
"", HFILL }},
|
|
|
|
{ &pce_subobj_flags_lpa,
|
|
{ "Local Protection Available", "pce.subobj.flags.lpa", FT_BOOLEAN, 8, TFS(&tfs_set_notset), PCE_SUB_LPA,
|
|
"", HFILL }},
|
|
{ &pce_subobj_flags_lpu,
|
|
{ "Local protection in Use", "pce.subobj.flags.lpu", FT_BOOLEAN, 8, TFS(&tfs_set_notset), PCE_SUB_LPU,
|
|
"", HFILL }},
|
|
{ &pce_subobj_label_flags_gl,
|
|
{ "Global Label", "pce.subobj.label.flags.gl", FT_BOOLEAN, 8, TFS(&tfs_set_notset), PCE_SUB_LABEL_GL,
|
|
"", HFILL }},
|
|
|
|
};
|
|
|
|
|
|
static void
|
|
dissect_pce_tlv(proto_item *ti, proto_tree *pce_obj, tvbuff_t *tvb, int *offset2, gint hdr_obj, gint body_obj_obl, gint obj_length, gint ett_pce_obj, gint *len){
|
|
|
|
proto_tree *tlv;
|
|
guint16 tlv_length = 0;
|
|
guint16 tlv_type;
|
|
int j = 0;
|
|
int m = 0;
|
|
int padding = 0;
|
|
if (obj_length>(hdr_obj+body_obj_obl)){
|
|
|
|
for(j=0; j<(obj_length - (hdr_obj+body_obj_obl)); ){
|
|
m=m+1;
|
|
|
|
tlv_type = tvb_get_ntohs(tvb, *offset2+j);
|
|
tlv_length = tvb_get_ntohs(tvb, *offset2 + j + 2);
|
|
ti = proto_tree_add_text(pce_obj, tvb, *offset2 + j, tlv_length+4, "TLV %u", m);
|
|
tlv = proto_item_add_subtree(ti, ett_pce_obj);
|
|
proto_tree_add_text(tlv, tvb, *offset2 + j, 2, "Type: %u", tlv_type);
|
|
proto_tree_add_text(tlv, tvb, *offset2 + 2 + j, 2, "Length: %u", tlv_length);
|
|
proto_tree_add_text(tlv, tvb, *offset2+4+j, tlv_length, "Data: %s",
|
|
bytestring_to_str(tvb_get_ptr(tvb, (*offset2) + 4 + j, tlv_length), tlv_length, ' '));
|
|
padding = (4 - (tlv_length % 4)) % 4;
|
|
if (padding != 0){
|
|
proto_tree_add_text(tlv, tvb, *offset2+4+j+tlv_length, padding, "Padding: %s",
|
|
bytestring_to_str(tvb_get_ptr(tvb, (*offset2) + 4 + j + tlv_length, padding), padding, ' '));
|
|
|
|
}
|
|
j=(j + tlv_length + 4 + padding);
|
|
}
|
|
|
|
*offset2 = (*offset2) + obj_length - (hdr_obj+body_obj_obl);
|
|
*len = *len + obj_length - hdr_obj;
|
|
|
|
}
|
|
else
|
|
*len = (*len) + body_obj_obl;
|
|
|
|
};
|
|
|
|
/*------------------------------------------------------------------------------
|
|
*SUBOBJECTS
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_subobj_ipv4(proto_item *ti, proto_tree *pce_subobj_tree, tvbuff_t *tvb, int *offset2, int *len, int obj_class, gint ett_pce_obj, guint l_and_or_type, guint length){
|
|
|
|
proto_tree *pce_subobj_ipv4;
|
|
proto_tree *pce_subobj_ipv4_flags;
|
|
guint8 prefix_length;
|
|
guint8 resvd;
|
|
guint l;
|
|
prefix_length = tvb_get_guint8(tvb, *offset2+6);
|
|
resvd = tvb_get_guint8(tvb, *offset2+7);
|
|
|
|
ti = proto_tree_add_item(pce_subobj_tree, pce_filter[PCEF_SUBOBJ_IPv4], tvb, *offset2, length, FALSE);
|
|
pce_subobj_ipv4 = proto_item_add_subtree(ti, ett_pce_obj);
|
|
|
|
switch(obj_class){
|
|
|
|
case PCE_EXPLICIT_ROUTE_OBJ:
|
|
l = (l_and_or_type& Mask_L)>>7;
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2, 1, val_to_str(l, pce_route_l_obj_vals, "Unknown Object (%u). "));
|
|
proto_tree_add_uint(pce_subobj_ipv4, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+2, 4, "IPv4 Address: (%s)", ip_to_str(tvb_get_ptr(tvb, *offset2+2, 4)));
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+6, 1, "Prefix Length: %u", prefix_length);
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+7, 1, "Padding: 0x%02x", resvd);
|
|
break;
|
|
|
|
case PCE_RECORD_ROUTE_OBJ:
|
|
proto_tree_add_uint(pce_subobj_ipv4, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, l_and_or_type);
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+2, 4, "IPv4 Address: (%s)", ip_to_str(tvb_get_ptr(tvb, *offset2+2, 4)));
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+6, 1, "Prefix Length: %u", prefix_length);
|
|
ti = proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+7, 1, "Flags: 0x%02x ", resvd);
|
|
pce_subobj_ipv4_flags = proto_item_add_subtree(ti, ett_pce_obj);
|
|
proto_tree_add_boolean(pce_subobj_ipv4_flags, pce_subobj_flags_lpa, tvb, *offset2+7, 1, resvd);
|
|
proto_tree_add_boolean(pce_subobj_ipv4_flags, pce_subobj_flags_lpu, tvb, *offset2+7, 1, resvd);
|
|
break;
|
|
|
|
case PCE_IRO_OBJ:
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2, 1, "l: %x", (l_and_or_type & 0x80)>>7);
|
|
proto_tree_add_uint(pce_subobj_ipv4, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+2, 4, "IPv4 Address: (%s)", ip_to_str(tvb_get_ptr(tvb, *offset2+2, 4)));
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+6, 1, "Prefix Length: %u", prefix_length);
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+7, 1, "Padding: 0x%02x", resvd);
|
|
break;
|
|
|
|
case PCE_XRO_OBJ:
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2, 1, "X: %x", (l_and_or_type & 0x01)>>7);
|
|
proto_tree_add_uint(pce_subobj_ipv4, pce_filter[PCEF_SUBOBJ_XRO], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2, 1, "Type: %u", (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+2, 4, "IPv4 Address: (%s)", ip_to_str(tvb_get_ptr(tvb, *offset2+2, 4)));
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+6, 1, "Prefix Length: %u", prefix_length);
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2+7, 1, val_to_str(resvd, pce_xro_atribute_obj_vals, "Unknown Atribute (%u). "));
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(pce_subobj_ipv4, tvb, *offset2, 8, "Non defined subobject for this object");
|
|
break;
|
|
}
|
|
|
|
*len = *len + 8;
|
|
*offset2 = *offset2 + 8;
|
|
}
|
|
|
|
static void
|
|
dissect_subobj_ipv6(proto_item *ti, proto_tree *pce_subobj_tree, tvbuff_t *tvb, int *offset2, int *len, int obj_class, gint ett_pce_obj, guint l_and_or_type, guint length){
|
|
|
|
proto_tree *pce_subobj_ipv6;
|
|
proto_tree *pce_subobj_ipv6_flags;
|
|
guint8 prefix_length;
|
|
guint8 resv;
|
|
int l;
|
|
|
|
prefix_length = tvb_get_guint8(tvb, *offset2+18);
|
|
resv = tvb_get_guint8(tvb, *offset2+19);
|
|
ti = proto_tree_add_item(pce_subobj_tree, pce_filter[PCEF_SUBOBJ_IPv6], tvb, *offset2, length, FALSE);
|
|
pce_subobj_ipv6 = proto_item_add_subtree(ti, ett_pce_obj);
|
|
|
|
switch(obj_class){
|
|
case PCE_EXPLICIT_ROUTE_OBJ:
|
|
l = (l_and_or_type& Mask_L)>>7;
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2, 1, val_to_str(l, pce_route_l_obj_vals, "Unknown Object (%u). "));
|
|
proto_tree_add_uint(pce_subobj_ipv6, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+2, 16, "IPv6 Address: %s", ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, *offset2+2, 16)));
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+18, 1, "Prefix Length: %u", prefix_length);
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+19, 1, "Padding: 0x%02x", resv);
|
|
break;
|
|
|
|
case PCE_RECORD_ROUTE_OBJ:
|
|
proto_tree_add_uint(pce_subobj_ipv6, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, l_and_or_type);
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+2, 16, "IPv6 Address: %s", ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, *offset2+2, 16)));
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+18, 1, "Prefix Length: %u", prefix_length);
|
|
ti = proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+19, 1, "Flags: 0x%02x ", resv);
|
|
pce_subobj_ipv6_flags = proto_item_add_subtree(ti, ett_pce_obj);
|
|
proto_tree_add_boolean(pce_subobj_ipv6_flags, pce_subobj_flags_lpa, tvb, *offset2+19, 1, resv);
|
|
proto_tree_add_boolean(pce_subobj_ipv6_flags, pce_subobj_flags_lpu, tvb, *offset2+19, 1, resv);
|
|
break;
|
|
|
|
case PCE_IRO_OBJ:
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2, 1, "l: %x", (l_and_or_type & 0x80)>>7);
|
|
proto_tree_add_uint(pce_subobj_ipv6, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+2, 16, "IPv6 Address: %s", ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, *offset2+2, 16)));
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+18, 1, "Prefix Length: %u", prefix_length);
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+19, 1, "Padding: 0x%02x", resv);
|
|
break;
|
|
|
|
case PCE_XRO_OBJ:
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2, 1, "X: %x", (l_and_or_type & 0x01)>>7);
|
|
proto_tree_add_uint(pce_subobj_ipv6, pce_filter[PCEF_SUBOBJ_XRO], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+2, 16, "IPv6 Address: %s", ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, *offset2+2, 16)));
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+18, 1, "Prefix Length: %u", prefix_length);
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2+19, 1, val_to_str(resv, pce_xro_atribute_obj_vals, "Unknown Atribute (%u). "));
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(pce_subobj_ipv6, tvb, *offset2, 20, "Non defined subobject for this object");
|
|
break;
|
|
}
|
|
|
|
*len = *len + 20;
|
|
*offset2 = *offset2 + 20;
|
|
|
|
}
|
|
|
|
|
|
static void
|
|
dissect_subobj_label_control(proto_item *ti, proto_tree *pce_subobj_tree, tvbuff_t *tvb, int *offset2, int *len, int obj_class, gint ett_pce_obj, guint l_and_or_type, guint length){
|
|
|
|
proto_tree *pce_subobj_label_control;
|
|
proto_tree *pce_subobj_label_flags;
|
|
guint8 u_reserved;
|
|
guint8 c_type;
|
|
int l;
|
|
int u;
|
|
|
|
u_reserved = tvb_get_guint8(tvb, *offset2+2);
|
|
c_type = tvb_get_guint8(tvb, *offset2+3);
|
|
|
|
ti = proto_tree_add_item(pce_subobj_tree, pce_filter[PCEF_SUBOBJ_LABEL_CONTROL], tvb, *offset2, length, FALSE);
|
|
pce_subobj_label_control = proto_item_add_subtree(ti, ett_pce_obj);
|
|
|
|
switch(obj_class){
|
|
|
|
case PCE_EXPLICIT_ROUTE_OBJ:
|
|
l = (l_and_or_type& Mask_L)>>7;
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2, 1, val_to_str(l, pce_route_l_obj_vals, "Unknown Object (%u). "));
|
|
proto_tree_add_uint(pce_subobj_label_control, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2+1, 1, "Length: %u", length);
|
|
u = (u_reserved & 0x80)>>7;
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2+2, 1, val_to_str(u, pce_route_u_obj_vals, "Unknown Object (%u). "));
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2+2, 1, "Reserved: %u", (u_reserved & 0x7f));
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2+3, 1, "C-Type: %u", c_type);
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2+4, length-4, "Label: %s",
|
|
bytestring_to_str(tvb_get_ptr(tvb, *offset2+4, length-4), length-4, ' '));
|
|
break;
|
|
|
|
case PCE_RECORD_ROUTE_OBJ:
|
|
proto_tree_add_uint(pce_subobj_label_control, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, l_and_or_type);
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2+1, 1, "Length: %u", length);
|
|
u = (u_reserved & 0x80)>>7;
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2+2, 1, val_to_str(u, pce_route_u_obj_vals, "Unknown Object (%u). "));
|
|
|
|
ti = proto_tree_add_text(pce_subobj_label_control, tvb, *offset2+2, 1, "Flags: 0x%02x ", (u_reserved & 0x7f));
|
|
pce_subobj_label_flags = proto_item_add_subtree(ti, ett_pce_obj);
|
|
proto_tree_add_boolean(pce_subobj_label_flags, pce_subobj_label_flags_gl, tvb, *offset2+2, 1, (u_reserved & 0x7f));
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2+3, 1, "C-Type: %u", c_type);
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2+4, length-4, "Label: %s",
|
|
bytestring_to_str(tvb_get_ptr(tvb, *offset2+4, length-4), length-4, ' '));
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(pce_subobj_label_control, tvb, *offset2, length, "Non defined subobject for this object");
|
|
break;
|
|
}
|
|
|
|
*len = *len + 8;
|
|
*offset2 = *offset2 + 8;
|
|
}
|
|
|
|
static void
|
|
dissect_subobj_unnumb_interfaceID(proto_item *ti, proto_tree *pce_subobj_tree, tvbuff_t *tvb, int *offset2, int *len, int obj_class, gint ett_pce_obj, guint l_and_or_type, guint length){
|
|
|
|
proto_tree *pce_subobj_unnumb_interfaceID;
|
|
proto_tree *pce_subobj_unnumb_interfaceID_flags;
|
|
guint32 router_ID;
|
|
guint32 interface_ID;
|
|
guint16 reserved_flags;
|
|
int l;
|
|
|
|
reserved_flags = tvb_get_ntohs(tvb, *offset2+2);
|
|
router_ID = tvb_get_ntohl(tvb, *offset2+4);
|
|
interface_ID = tvb_get_ntohl(tvb, *offset2+8);
|
|
|
|
ti = proto_tree_add_item(pce_subobj_tree, pce_filter[PCEF_SUBOBJ_UNNUM_INTERFACEID], tvb, *offset2, length, FALSE);
|
|
pce_subobj_unnumb_interfaceID = proto_item_add_subtree(ti, ett_pce_obj);
|
|
|
|
switch(obj_class){
|
|
|
|
case PCE_EXPLICIT_ROUTE_OBJ:
|
|
l = (l_and_or_type& Mask_L)>>7;
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2, 1, val_to_str(l, pce_route_l_obj_vals, "Unknown Object (%u). "));
|
|
proto_tree_add_uint(pce_subobj_unnumb_interfaceID, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+2, 2, "Reserved: 0x%04x", reserved_flags);
|
|
break;
|
|
|
|
case PCE_RECORD_ROUTE_OBJ:
|
|
proto_tree_add_uint(pce_subobj_unnumb_interfaceID, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, l_and_or_type);
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+1, 1, "Length: %u", length);
|
|
|
|
ti = proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+2, 2, "Flags: 0x%02x ", (reserved_flags & 0xff00)>>8);
|
|
pce_subobj_unnumb_interfaceID_flags = proto_item_add_subtree(ti, ett_pce_obj);
|
|
proto_tree_add_boolean(pce_subobj_unnumb_interfaceID_flags, pce_subobj_flags_lpa, tvb, *offset2+2, 1, (reserved_flags & 0xff00)>>8);
|
|
proto_tree_add_boolean(pce_subobj_unnumb_interfaceID_flags, pce_subobj_flags_lpu, tvb, *offset2+2, 1, (reserved_flags & 0xff00)>>8);
|
|
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+3, 1, "Reserved: 0x%02x", (reserved_flags & 0x00ff));
|
|
break;
|
|
|
|
case PCE_IRO_OBJ:
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2, 1, "l: %x", (l_and_or_type & 0x80)>>7);
|
|
proto_tree_add_uint(pce_subobj_unnumb_interfaceID, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+2, 2, "Reserved: 0x%04x", reserved_flags);
|
|
break;
|
|
|
|
case PCE_XRO_OBJ:
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2, 1, "X: %x", (l_and_or_type & 0x01)>>7);
|
|
proto_tree_add_uint(pce_subobj_unnumb_interfaceID, pce_filter[PCEF_SUBOBJ_XRO], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+2, 1, "Reserved: 0x%02x", (reserved_flags & 0xff00)>>4);
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+3, 1, val_to_str((reserved_flags & 0x00ff), pce_xro_atribute_obj_vals, "Unknown Atribute (%u). "));
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2, 12, "Non defined subobject for this object");
|
|
break;
|
|
}
|
|
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+4, 4, "Router ID: 0x%08x", router_ID);
|
|
proto_tree_add_text(pce_subobj_unnumb_interfaceID, tvb, *offset2+8, 4, "Interface ID: 0x%08x", interface_ID);
|
|
|
|
*offset2 = *offset2 + 12;
|
|
*len = *len + 12;
|
|
|
|
}
|
|
|
|
static void
|
|
dissect_subobj_autonomous_sys_num(proto_item *ti, proto_tree *pce_subobj_tree, tvbuff_t *tvb, int *offset2, int *len, int obj_class, guint ett_pce_obj, guint l_and_or_type, guint length){
|
|
|
|
proto_tree *pce_subobj_autonomous_sys_num;
|
|
guint16 AS_number;
|
|
guint8 reserved;
|
|
guint8 attribute;
|
|
guint16 op_AS_nu_high_oct;
|
|
int l;
|
|
l = (l_and_or_type& Mask_L)>>7;
|
|
|
|
if(obj_class == PCE_XRO_OBJ){
|
|
reserved = tvb_get_guint8(tvb, *offset2+2);
|
|
attribute = tvb_get_guint8(tvb, *offset2+3);
|
|
op_AS_nu_high_oct = tvb_get_ntohs(tvb, *offset2+4);
|
|
AS_number = tvb_get_ntohs(tvb, *offset2+6);
|
|
|
|
ti = proto_tree_add_item(pce_subobj_tree, pce_filter[PCEF_SUBOBJ_AUTONOMOUS_SYS_NUM], tvb, *offset2, length, FALSE);
|
|
pce_subobj_autonomous_sys_num = proto_item_add_subtree(ti, ett_pce_obj);
|
|
proto_tree_add_text(pce_subobj_autonomous_sys_num, tvb, *offset2, 1, "X: %x", (l_and_or_type & 0x01)>>7);
|
|
proto_tree_add_uint(pce_subobj_autonomous_sys_num, pce_filter[PCEF_SUBOBJ_XRO], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_autonomous_sys_num, tvb, *offset2+1, 1, "Length: %u", length);
|
|
|
|
proto_tree_add_text(pce_subobj_autonomous_sys_num, tvb, *offset2+2, 1, "Reserved: 0x%02x", reserved);
|
|
proto_tree_add_text(pce_subobj_autonomous_sys_num, tvb, *offset2+3, 1, val_to_str(attribute, pce_xro_atribute_obj_vals, "Unknown Object (%u)."));
|
|
proto_tree_add_text(pce_subobj_autonomous_sys_num, tvb, *offset2+4, 2, "Optional AS Number High Octets: 0x%04x", AS_number);
|
|
proto_tree_add_text(pce_subobj_autonomous_sys_num, tvb, *offset2+6, 2, "AS Number: 0x%04x", AS_number);
|
|
|
|
*offset2 = *offset2 + 8;
|
|
*len = *len + 8;
|
|
}
|
|
|
|
else{ AS_number = tvb_get_ntohs(tvb, *offset2+2);
|
|
ti = proto_tree_add_item(pce_subobj_tree, pce_filter[PCEF_SUBOBJ_AUTONOMOUS_SYS_NUM], tvb, *offset2, length, FALSE);
|
|
pce_subobj_autonomous_sys_num = proto_item_add_subtree(ti, ett_pce_obj);
|
|
|
|
if(obj_class == PCE_IRO_OBJ)
|
|
proto_tree_add_text(pce_subobj_autonomous_sys_num, tvb, *offset2, 1, "l: %x", (l_and_or_type & 0x80)>>7);
|
|
else
|
|
proto_tree_add_text(pce_subobj_autonomous_sys_num, tvb, *offset2, 1, val_to_str(l, pce_route_l_obj_vals, "Unknown Object (%u). "));
|
|
proto_tree_add_uint(pce_subobj_autonomous_sys_num, pce_filter[PCEF_SUBOBJ], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_autonomous_sys_num, tvb, *offset2+1, 1, "Length: %u", length);
|
|
proto_tree_add_text(pce_subobj_autonomous_sys_num, tvb, *offset2+2, 2, "AS Number: 0x%04x", AS_number);
|
|
|
|
*offset2 = *offset2 + 4;
|
|
*len = *len + 4;
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_subobj_srlg(proto_item *ti, proto_tree *pce_subobj_tree, tvbuff_t *tvb, int *offset2, int *len, guint ett_pce_obj, guint l_and_or_type, guint length){
|
|
|
|
proto_tree *pce_subobj_srlg;
|
|
guint32 srlg_id;
|
|
guint8 reserved;
|
|
guint8 attribute;
|
|
|
|
srlg_id = tvb_get_ntohl(tvb, *offset2+2);
|
|
reserved = tvb_get_guint8(tvb, *offset2+6);
|
|
attribute = tvb_get_guint8(tvb, *offset2+7);
|
|
|
|
ti = proto_tree_add_item(pce_subobj_tree, pce_filter[PCEF_SUBOBJ_SRLG], tvb, *offset2, length, FALSE);
|
|
pce_subobj_srlg = proto_item_add_subtree(ti, ett_pce_obj);
|
|
|
|
proto_tree_add_text(pce_subobj_srlg, tvb, *offset2, 1, "X: %x", (l_and_or_type & 0x01)>>7);
|
|
proto_tree_add_uint(pce_subobj_srlg, pce_filter[PCEF_SUBOBJ_XRO], tvb, *offset2, 1, (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_srlg, tvb, *offset2+1, 1, "Length: %u", length);
|
|
|
|
proto_tree_add_text(pce_subobj_srlg, tvb, *offset2+2, 4, "SRLG ID: 0x%08x", srlg_id);
|
|
proto_tree_add_text(pce_subobj_srlg, tvb, *offset2+6, 1, "Reserved: 0x%02x", reserved);
|
|
proto_tree_add_text(pce_subobj_srlg, tvb, *offset2+7, 1, val_to_str(attribute, pce_xro_atribute_obj_vals, "Unknown Object (%u)."));
|
|
|
|
*offset2 = *offset2 + 8;
|
|
*len = *len + 8;
|
|
|
|
}
|
|
|
|
static void
|
|
dissect_subobj_exrs(proto_item *ti, proto_tree *pce_subobj_tree, tvbuff_t *tvb, int *offset2, int *len, int obj_class, guint ett_pce_obj, guint type_iro, guint l_and_or_type, guint length){
|
|
|
|
proto_tree *pce_subobj_exrs;
|
|
guint16 reserved;
|
|
guint8 l_type;
|
|
guint8 length2;
|
|
guint type_exrs;
|
|
guint offset_exrs = 0;
|
|
guint l;
|
|
|
|
ti = proto_tree_add_item(pce_subobj_tree, pce_filter[PCEF_SUBOBJ_EXRS], tvb, *offset2, length, FALSE);
|
|
pce_subobj_exrs = proto_item_add_subtree(ti, ett_pce_obj);
|
|
|
|
l = (l_and_or_type& Mask_L)>>7;
|
|
proto_tree_add_text(pce_subobj_exrs, tvb, *offset2, 1, val_to_str(l, pce_route_l_obj_vals, "Unknown Object (%u). "));
|
|
proto_tree_add_text(pce_subobj_exrs, tvb, *offset2, 1, "Type: %u", (l_and_or_type & 0x7f));
|
|
proto_tree_add_text(pce_subobj_exrs, tvb, *offset2+1, 1, "Length: %u", length);
|
|
|
|
reserved = tvb_get_ntohs(tvb, *offset2+2);
|
|
proto_tree_add_text(pce_subobj_exrs, tvb, *offset2+2, 2, "Reserved: 0x%04x", reserved);
|
|
|
|
*len = *len + 4;
|
|
*offset2 = *offset2 + 4;
|
|
|
|
while(offset_exrs<length-4){
|
|
|
|
l_type = tvb_get_guint8(tvb, *offset2);
|
|
length2 = tvb_get_guint8(tvb, *offset2+1);
|
|
type_exrs = (l_type & Mask_Type);
|
|
|
|
if(type_iro==PCE_SUB_EXRS){
|
|
obj_class = PCE_XRO_OBJ;}
|
|
|
|
switch(type_exrs) {
|
|
|
|
case PCE_SUB_IPv4:
|
|
dissect_subobj_ipv4(ti, pce_subobj_exrs, tvb, offset2, len, obj_class, ett_pce_obj, l_type, length2);
|
|
break;
|
|
case PCE_SUB_IPv6:
|
|
dissect_subobj_ipv6(ti, pce_subobj_exrs, tvb, offset2, len, obj_class, ett_pce_obj, l_type, length2);
|
|
break;
|
|
case PCE_SUB_UNNUMB_INTERFACE_ID_XRO:
|
|
dissect_subobj_unnumb_interfaceID(ti, pce_subobj_exrs, tvb, offset2, len, obj_class, ett_pce_obj, l_type, length2);
|
|
break;
|
|
case PCE_SUB_AUTONOMOUS_SYS_NUM_XRO:
|
|
dissect_subobj_autonomous_sys_num(ti, pce_subobj_exrs, tvb, offset2, len, obj_class, ett_pce_obj, l_type, length2);
|
|
break;
|
|
case PCE_SUB_SRLG:
|
|
dissect_subobj_srlg(ti, pce_subobj_exrs, tvb, offset2, len, ett_pce_obj, l_type, length2);
|
|
break;
|
|
default:
|
|
ti = proto_tree_add_text(pce_subobj_exrs, tvb, *offset2+2, length-2,
|
|
"Non defined subobject (%d)", type_exrs);
|
|
break;
|
|
|
|
}
|
|
|
|
offset_exrs = offset_exrs + length2;
|
|
|
|
}
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* OPEN OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_open_obj (proto_item *ti, proto_tree *pce_tree, tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
proto_tree *pce_open_obj;
|
|
proto_tree *pce_open_obj_flags;
|
|
guint8 version_flags;
|
|
guint8 keepalive;
|
|
guint8 deadtimer;
|
|
guint8 SID;
|
|
guint hdr_obj=4;
|
|
guint body_obj_obl=4;
|
|
|
|
version_flags = tvb_get_guint8(tvb, *offset2);
|
|
keepalive = tvb_get_guint8(tvb, *offset2+1);
|
|
deadtimer = tvb_get_guint8(tvb, *offset2+2);
|
|
SID = tvb_get_guint8(tvb, *offset2+3);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_OPEN], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_open_obj = proto_item_add_subtree(ti, ett_pce_obj_open);
|
|
|
|
proto_tree_add_text(pce_open_obj, tvb, *offset2, 1, "PCE Version: %u", (version_flags & 0xe0)>>5);
|
|
|
|
ti = proto_tree_add_text(pce_open_obj, tvb, *offset2, 1, "Flags: ");
|
|
pce_open_obj_flags = proto_item_add_subtree(ti, ett_pce_obj_open);
|
|
|
|
proto_tree_add_boolean(pce_open_obj_flags, pce_open_flags_res, tvb, *offset2, 1, version_flags & 0x1f);
|
|
proto_tree_add_text(pce_open_obj, tvb, *offset2+1, 1, "Keepalive: %u", keepalive);
|
|
proto_tree_add_text(pce_open_obj, tvb, *offset2+2, 1, "Deadtime: %u", deadtimer);
|
|
proto_tree_add_text(pce_open_obj, tvb, *offset2+3, 1, "SID: %u", SID);
|
|
|
|
*offset2 = (*offset2) + body_obj_obl;
|
|
|
|
dissect_pce_tlv(ti, pce_open_obj, tvb, offset2, hdr_obj, body_obj_obl, obj_length, ett_pce_obj_open, len);
|
|
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* RP OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_rp_obj(proto_item *ti, proto_tree *pce_tree,
|
|
tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
|
|
proto_tree *pce_rp_obj;
|
|
proto_tree *pce_rp_obj_flags;
|
|
guint8 reserved;
|
|
guint32 flags;
|
|
guint32 requested_id_number;
|
|
guint hdr_obj=4;
|
|
guint body_obj_obl=8;
|
|
|
|
reserved = tvb_get_guint8(tvb, *offset2);
|
|
flags = tvb_get_ntoh24(tvb, *offset2+1);
|
|
requested_id_number = tvb_get_ntohl(tvb, *offset2+4);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_RP], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_rp_obj = proto_item_add_subtree(ti, ett_pce_obj_request_parameters);
|
|
|
|
proto_tree_add_text(pce_rp_obj, tvb, *offset2, 1, "Reserved: 0x%02x", reserved);
|
|
|
|
ti = proto_tree_add_text(pce_rp_obj, tvb, *offset2+1, 3, "Flags: 0x%06x ", flags);
|
|
pce_rp_obj_flags = proto_item_add_subtree(ti, ett_pce_obj_request_parameters);
|
|
|
|
proto_tree_add_boolean(pce_rp_obj_flags, pce_rp_flags_reserved, tvb, *offset2+1, 3, flags);
|
|
proto_tree_add_boolean(pce_rp_obj_flags, pce_rp_flags_o, tvb, *offset2+1, 3, flags);
|
|
proto_tree_add_boolean(pce_rp_obj_flags, pce_rp_flags_b, tvb, *offset2+1, 3, flags);
|
|
proto_tree_add_boolean(pce_rp_obj_flags, pce_rp_flags_r, tvb, *offset2+1, 3, flags);
|
|
proto_tree_add_boolean(pce_rp_obj_flags, pce_rp_flags_pri, tvb, *offset2+1, 3, flags);
|
|
|
|
proto_tree_add_text(pce_rp_obj, tvb, *offset2+4, 4, "Requested ID Number: 0x%08x", requested_id_number);
|
|
*offset2 = (*offset2) + body_obj_obl;
|
|
|
|
dissect_pce_tlv(ti, pce_rp_obj, tvb, offset2, hdr_obj, body_obj_obl, obj_length, ett_pce_obj_request_parameters, len);
|
|
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* NO PATH OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_no_path_obj(proto_item *ti, proto_tree *pce_tree,
|
|
tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
|
|
proto_tree *pce_no_path_obj;
|
|
proto_tree *pce_no_path_obj_flags;
|
|
guint8 ni;
|
|
guint16 flags;
|
|
guint8 reserved;
|
|
guint hdr_obj=4;
|
|
guint body_obj_obl=4;
|
|
|
|
ni = tvb_get_guint8(tvb, *offset2);
|
|
flags = tvb_get_ntohs(tvb, *offset2+1);
|
|
reserved = tvb_get_guint8(tvb, *offset2+3);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_NO_PATH], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_no_path_obj = proto_item_add_subtree(ti, ett_pce_obj_no_path);
|
|
|
|
proto_tree_add_text(pce_no_path_obj, tvb, *offset2, 1, val_to_str(ni, pce_no_path_obj_vals, "Unknown Object (%u). "));
|
|
|
|
ti = proto_tree_add_text(pce_no_path_obj, tvb, *offset2+1, 2, "Flags: 0x%04x", flags);
|
|
pce_no_path_obj_flags = proto_item_add_subtree(ti, ett_pce_obj_no_path);
|
|
|
|
proto_tree_add_boolean(pce_no_path_obj_flags, pce_no_path_flags_c, tvb, *offset2+1, 2, flags);
|
|
proto_tree_add_text(pce_no_path_obj, tvb, *offset2+3, 1, "Reserved: 0x%02x", reserved);
|
|
|
|
*offset2 = (*offset2) + body_obj_obl;
|
|
dissect_pce_tlv(ti, pce_no_path_obj, tvb, offset2, hdr_obj, body_obj_obl, obj_length, ett_pce_obj_no_path, len);
|
|
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* END POINT OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_end_point_obj(proto_item *ti, proto_tree *pce_tree,
|
|
tvbuff_t *tvb, int *offset2, int obj_length, int *len, int type)
|
|
{
|
|
proto_tree *pce_end_point_obj;
|
|
|
|
switch(type)
|
|
{
|
|
case IPv4:{
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_END_POINT], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_end_point_obj = proto_item_add_subtree(ti, ett_pce_obj_end_point);
|
|
|
|
proto_tree_add_text(pce_end_point_obj, tvb, *offset2, 4, "Source IPv4 Address: (%s)", ip_to_str(tvb_get_ptr(tvb, *offset2, 4)));
|
|
proto_tree_add_text(pce_end_point_obj, tvb, *offset2+4, 4, "Destination IPv4 Address: (%s)", ip_to_str(tvb_get_ptr(tvb, *offset2+4, 4)));
|
|
|
|
*len = *len + 8;
|
|
|
|
break;
|
|
|
|
}
|
|
case IPv6:{
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_END_POINT], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_end_point_obj = proto_item_add_subtree(ti, ett_pce_obj_end_point);
|
|
|
|
proto_tree_add_text(pce_end_point_obj, tvb, *offset2, 16, "Source IPv6 Address: %s",
|
|
ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, *offset2, 16)));
|
|
proto_tree_add_text(pce_end_point_obj, tvb, *offset2+16, 16, "Destination IPv6 Address: %s",
|
|
ip6_to_str((const struct e_in6_addr *)tvb_get_ptr(tvb, *offset2+16, 16)));
|
|
|
|
*len = *len + 32;
|
|
|
|
break;
|
|
|
|
}
|
|
default:
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_END_POINT], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_end_point_obj = proto_item_add_subtree(ti, ett_pce_obj_end_point);
|
|
proto_tree_add_text(pce_end_point_obj, tvb, *offset2, 1, "UNKNOWN Type Object (%u)", type);
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* BANDWIDTH OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_bandwidth_obj(proto_item *ti, proto_tree *pce_tree, tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
proto_tree *pce_bandwidth_obj;
|
|
guint32 bandwidth;
|
|
|
|
bandwidth = tvb_get_ntohl(tvb, *offset2);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_BANDWIDTH], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_bandwidth_obj = proto_item_add_subtree(ti, ett_pce_obj_bandwidth);
|
|
proto_tree_add_text(pce_bandwidth_obj, tvb, *offset2, 4, "Bandwidth: 0x%x", bandwidth);
|
|
|
|
*len = *len + 8;
|
|
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* METRIC OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_metric_obj(proto_item *ti, proto_tree *pce_tree,
|
|
tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
|
|
proto_tree *pce_metric_obj;
|
|
proto_tree *pce_metric_obj_flags;
|
|
guint16 reserved;
|
|
guint8 flags;
|
|
guint8 metric_type;
|
|
guint32 metric_value;
|
|
|
|
reserved = tvb_get_ntohs(tvb, *offset2);
|
|
flags = tvb_get_guint8(tvb, *offset2+2);
|
|
metric_type = tvb_get_guint8(tvb, *offset2+3);
|
|
metric_value = tvb_get_ntohl(tvb, *offset2+4);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_METRIC], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_metric_obj = proto_item_add_subtree(ti, ett_pce_obj_metric);
|
|
|
|
proto_tree_add_text(pce_metric_obj, tvb, *offset2, 2, "Reserved: %u", reserved);
|
|
|
|
ti = proto_tree_add_text(pce_metric_obj, tvb, *offset2+2, 1, "Flags: 0x%02x", flags);
|
|
pce_metric_obj_flags = proto_item_add_subtree(ti, ett_pce_obj_metric);
|
|
|
|
proto_tree_add_boolean(pce_metric_obj_flags, pce_metric_flags_c, tvb, *offset2+2, 1, flags);
|
|
proto_tree_add_boolean(pce_metric_obj_flags, pce_metric_flags_b, tvb, *offset2+2, 1, flags);
|
|
proto_tree_add_text(pce_metric_obj, tvb, *offset2+3, 1, val_to_str(metric_type, pce_metric_obj_vals, "Unknown Object (%u). "));
|
|
proto_tree_add_text(pce_metric_obj, tvb, *offset2+4, 4, "Metric Value: 0x%x", metric_value);
|
|
|
|
*len = *len + 8;
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* EXPLICIT ROUTE OBJECT (ERO)
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_explicit_route_obj(proto_item *ti, proto_tree *pce_tree,
|
|
tvbuff_t *tvb, int *offset2, int obj_length, int obj_class, int *len, int *msg_length)
|
|
{
|
|
proto_tree *pce_explicit_route_obj;
|
|
guint8 l_type;
|
|
guint8 length;
|
|
guint type_exp_route;
|
|
guint body_obj_len;
|
|
body_obj_len = obj_length - 4;
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_EXPLICIT_ROUTE], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_explicit_route_obj = proto_item_add_subtree(ti, ett_pce_obj_explicit_route);
|
|
|
|
while(body_obj_len){
|
|
|
|
l_type = tvb_get_guint8(tvb, *offset2);
|
|
length = tvb_get_guint8(tvb, *offset2+1);
|
|
type_exp_route = (l_type & Mask_Type);
|
|
if (body_obj_len <length) {
|
|
proto_tree_add_text(pce_explicit_route_obj, tvb, *offset2, length, "The packet is bad coded!! \nObject Length = %u", body_obj_len);
|
|
body_obj_len = 0;
|
|
*len = *msg_length;
|
|
}
|
|
else{
|
|
body_obj_len = body_obj_len - length;
|
|
|
|
switch(type_exp_route) {
|
|
|
|
case PCE_SUB_IPv4:
|
|
dissect_subobj_ipv4(ti, pce_explicit_route_obj, tvb, offset2, len, obj_class, ett_pce_obj_explicit_route, l_type, length);
|
|
break;
|
|
case PCE_SUB_IPv6:
|
|
dissect_subobj_ipv6(ti, pce_explicit_route_obj, tvb, offset2, len, obj_class, ett_pce_obj_explicit_route, l_type, length);
|
|
break;
|
|
case PCE_SUB_LABEL_CONTROL:
|
|
dissect_subobj_label_control(ti, pce_explicit_route_obj, tvb, offset2, len, obj_class, ett_pce_obj_explicit_route, l_type, length);
|
|
break;
|
|
case PCE_SUB_UNNUMB_INTERFACE_ID:
|
|
dissect_subobj_unnumb_interfaceID(ti, pce_explicit_route_obj, tvb, offset2, len, obj_class, ett_pce_obj_explicit_route, l_type, length);
|
|
break;
|
|
case PCE_SUB_AUTONOMOUS_SYS_NUM:
|
|
dissect_subobj_autonomous_sys_num(ti, pce_explicit_route_obj, tvb, offset2, len, obj_class, ett_pce_obj_explicit_route, l_type, length);
|
|
break;
|
|
default:
|
|
ti = proto_tree_add_text(pce_explicit_route_obj, tvb, *offset2, length, "Non defined subobject (%d)", type_exp_route);
|
|
*offset2 = *offset2 + length;
|
|
break;
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* RECORD ROUTE OBJECT (RRO)
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_record_route_obj(proto_item *ti, proto_tree *pce_tree, tvbuff_t *tvb, int *offset2, int obj_length, int obj_class, int *len, int *msg_length)
|
|
{
|
|
proto_tree *pce_record_route_obj;
|
|
guint8 type;
|
|
guint8 length;
|
|
guint body_obj_len;
|
|
body_obj_len = obj_length - 4;
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_RECORD_ROUTE], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_record_route_obj = proto_item_add_subtree(ti, ett_pce_obj_record_route);
|
|
|
|
while(body_obj_len){
|
|
|
|
type = tvb_get_guint8(tvb, *offset2);
|
|
length = tvb_get_guint8(tvb, *offset2+1);
|
|
|
|
if (body_obj_len <length) {
|
|
proto_tree_add_text(pce_record_route_obj, tvb, *offset2, length, "The packet is bad coded!! \nObject Length = %u", body_obj_len);
|
|
body_obj_len = 0;
|
|
*len = *msg_length;
|
|
}
|
|
else{
|
|
body_obj_len = body_obj_len - length;
|
|
|
|
switch(type) {
|
|
|
|
case PCE_SUB_IPv4:
|
|
dissect_subobj_ipv4(ti, pce_record_route_obj, tvb, offset2, len, obj_class, ett_pce_obj_record_route, type, length);
|
|
break;
|
|
case PCE_SUB_IPv6:
|
|
dissect_subobj_ipv6(ti, pce_record_route_obj, tvb, offset2, len, obj_class, ett_pce_obj_record_route, type, length);
|
|
break;
|
|
case PCE_SUB_LABEL_CONTROL:
|
|
dissect_subobj_label_control(ti, pce_record_route_obj, tvb, offset2, len, obj_class, ett_pce_obj_record_route, type, length);
|
|
break;
|
|
case PCE_SUB_UNNUMB_INTERFACE_ID:
|
|
dissect_subobj_unnumb_interfaceID(ti, pce_record_route_obj, tvb, offset2, len, obj_class, ett_pce_obj_record_route, type, length);
|
|
break;
|
|
|
|
default:
|
|
ti = proto_tree_add_text(pce_record_route_obj, tvb, *offset2, length, "Non defined subobject (%d)", type);
|
|
*offset2 = *offset2 + length;
|
|
break;
|
|
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* LSPA OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_lspa_obj(proto_item *ti, proto_tree *pce_tree, tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
proto_tree *pce_lspa_obj;
|
|
proto_tree *pce_lspa_obj_flags;
|
|
guint32 exclude_any;
|
|
guint32 include_any;
|
|
guint32 include_all;
|
|
guint8 setup_prio;
|
|
guint8 holding_prio;
|
|
guint8 flags;
|
|
guint8 reserved;
|
|
guint hdr_obj=4;
|
|
guint body_obj_obl=16;
|
|
|
|
exclude_any = tvb_get_ntohl(tvb, *offset2);
|
|
include_any = tvb_get_ntohl(tvb, *offset2+4);
|
|
include_all = tvb_get_ntohl(tvb, *offset2+8);
|
|
setup_prio = tvb_get_guint8(tvb, *offset2+12);
|
|
holding_prio = tvb_get_guint8(tvb, *offset2+13);
|
|
flags = tvb_get_guint8(tvb, *offset2+14);
|
|
reserved = tvb_get_guint8(tvb, *offset2+15);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_LSPA], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_lspa_obj = proto_item_add_subtree(ti, ett_pce_obj_lspa);
|
|
|
|
proto_tree_add_text(pce_lspa_obj, tvb, *offset2, 4, "Exclude-Any: 0x%08x", exclude_any);
|
|
proto_tree_add_text(pce_lspa_obj, tvb, *offset2+4, 4, "Include-Any: 0x%08x", include_any);
|
|
proto_tree_add_text(pce_lspa_obj, tvb, *offset2+8, 4, "Include-All: 0x%08x", include_all);
|
|
proto_tree_add_text(pce_lspa_obj, tvb, *offset2+12, 1, "Setup Priority: %u", setup_prio);
|
|
proto_tree_add_text(pce_lspa_obj, tvb, *offset2+13, 1, "Holding Priority: %u", holding_prio);
|
|
|
|
ti = proto_tree_add_text(pce_lspa_obj, tvb, *offset2+14, 1, "Flags: 0x%02x", flags);
|
|
pce_lspa_obj_flags = proto_item_add_subtree(ti, ett_pce_obj_metric);
|
|
|
|
proto_tree_add_boolean(pce_lspa_obj_flags, pce_lspa_flags_l, tvb, *offset2+14, 1, flags);
|
|
proto_tree_add_text(pce_lspa_obj, tvb, *offset2+15, 1, "Reserved: 0x%02x", reserved);
|
|
|
|
/*it's suppose that obj_length is a a valid date. The object can have optional TLV(s)*/
|
|
*offset2 = (*offset2) + body_obj_obl;
|
|
*len = *len + body_obj_obl;
|
|
|
|
dissect_pce_tlv(ti, pce_lspa_obj, tvb, offset2, hdr_obj, body_obj_obl, obj_length, ett_pce_obj_lspa, len);
|
|
|
|
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* INCLUDE ROUTE OBJECT (IRO)
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_iro_obj(proto_item *ti, proto_tree *pce_tree,
|
|
tvbuff_t *tvb, int *offset2, int obj_length, int obj_class, int *len, int *msg_length)
|
|
{
|
|
proto_tree *pce_iro_obj;
|
|
guint8 l_type;
|
|
guint8 length;
|
|
int type_iro;
|
|
guint body_obj_len;
|
|
body_obj_len = obj_length - 4;
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_IRO], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_iro_obj = proto_item_add_subtree(ti, ett_pce_obj_iro);
|
|
|
|
while(body_obj_len){
|
|
|
|
l_type = tvb_get_guint8(tvb, *offset2);
|
|
length = tvb_get_guint8(tvb, *offset2+1);
|
|
type_iro = (l_type & Mask_Type);
|
|
|
|
if (body_obj_len <length) {
|
|
proto_tree_add_text(pce_iro_obj, tvb, *offset2, length, "The packet is bad coded!! \nObject Length = %u", body_obj_len);
|
|
body_obj_len = 0;
|
|
*len = *msg_length;
|
|
}
|
|
else{
|
|
body_obj_len = body_obj_len - length;
|
|
|
|
switch(type_iro) {
|
|
|
|
case PCE_SUB_IPv4:
|
|
dissect_subobj_ipv4(ti, pce_iro_obj, tvb, offset2, len, obj_class, ett_pce_obj_iro, l_type, length);
|
|
break;
|
|
case PCE_SUB_IPv6:
|
|
dissect_subobj_ipv6(ti, pce_iro_obj, tvb, offset2, len, obj_class, ett_pce_obj_iro, l_type, length);
|
|
break;
|
|
case PCE_SUB_UNNUMB_INTERFACE_ID:
|
|
dissect_subobj_unnumb_interfaceID(ti, pce_iro_obj, tvb, offset2, len, obj_class, ett_pce_obj_iro, l_type, length);
|
|
break;
|
|
case PCE_SUB_AUTONOMOUS_SYS_NUM:
|
|
dissect_subobj_autonomous_sys_num(ti, pce_iro_obj, tvb, offset2, len, obj_class, ett_pce_obj_iro, l_type, length);
|
|
break;
|
|
case PCE_SUB_EXRS:
|
|
dissect_subobj_exrs(ti, pce_iro_obj, tvb, offset2, len, obj_class, ett_pce_obj_iro, type_iro, l_type, length);
|
|
break;
|
|
default:
|
|
ti = proto_tree_add_text(pce_iro_obj, tvb, *offset2, length, "Non defined subobject (%d)", type_iro);
|
|
*offset2 = *offset2 + length;
|
|
break;
|
|
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* SVEC OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_svec_obj(proto_item *ti, proto_tree *pce_tree,
|
|
tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
proto_tree *pce_svec_obj;
|
|
proto_tree *pce_svec_flags_obj;
|
|
guint8 reserved;
|
|
guint32 flags;
|
|
int m = 1;
|
|
int i = 0;
|
|
|
|
reserved = tvb_get_guint8(tvb, *offset2);
|
|
flags = tvb_get_ntoh24(tvb, *offset2+1);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_SVEC], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_svec_obj = proto_item_add_subtree(ti, ett_pce_obj_svec);
|
|
|
|
proto_tree_add_text(pce_svec_obj, tvb, *offset2, 1, "Reserved: 0x%02x", reserved);
|
|
|
|
ti = proto_tree_add_text(pce_svec_obj, tvb, *offset2+1, 3, "Flags 0x%06x ", flags);
|
|
pce_svec_flags_obj = proto_item_add_subtree(ti, ett_pce_obj_svec);
|
|
|
|
proto_tree_add_boolean(pce_svec_flags_obj, pce_svec_flags_l, tvb, *offset2 + 1, 3, flags);
|
|
proto_tree_add_boolean(pce_svec_flags_obj, pce_svec_flags_n, tvb, *offset2 + 1, 3, flags);
|
|
proto_tree_add_boolean(pce_svec_flags_obj, pce_svec_flags_s, tvb, *offset2 + 1, 3, flags);
|
|
|
|
for ( i=4 ; i<(obj_length-4) ; ){
|
|
|
|
proto_tree_add_text(pce_svec_obj, tvb, *offset2+i, 4, "Request-ID-Number %u: 0x%s", m,
|
|
bytestring_to_str(tvb_get_ptr(tvb, *offset2+i, 4), 4, ' '));
|
|
|
|
i=i+4;
|
|
}
|
|
*offset2 = *offset2 + obj_length- 4;
|
|
*len = *len + obj_length - 4;
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* NOTIFICATION OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_notification_obj(proto_item *ti, proto_tree *pce_tree, tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
proto_tree *pce_notification_obj;
|
|
guint8 reserved;
|
|
guint8 flags;
|
|
guint8 nt;
|
|
guint8 nv;
|
|
gint hdr_obj=4;
|
|
gint body_obj_obl=4;
|
|
|
|
reserved = tvb_get_guint8(tvb, *offset2);
|
|
flags = tvb_get_guint8(tvb, *offset2+1);
|
|
nt = tvb_get_guint8(tvb, *offset2+2);
|
|
nv = tvb_get_guint8(tvb, *offset2+3);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_NOTIFICATION], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_notification_obj = proto_item_add_subtree(ti, ett_pce_obj_notification);
|
|
|
|
proto_tree_add_text(pce_notification_obj, tvb, *offset2, 1, "Reserved: 0x%02x", reserved);
|
|
proto_tree_add_text(pce_notification_obj, tvb, *offset2+1, 1, "Flags: 0x%02x", flags);
|
|
proto_tree_add_uint(pce_notification_obj, pce_filter[PCEF_NOTI_TYPE], tvb, *offset2+2, 1, nt);
|
|
|
|
switch(nt){
|
|
|
|
case 1:
|
|
proto_tree_add_uint(pce_notification_obj, pce_filter[PCEF_NOTI_VAL1], tvb, *offset2+2, 1, nt);
|
|
break;
|
|
|
|
case 2:
|
|
proto_tree_add_uint(pce_notification_obj, pce_filter[PCEF_NOTI_VAL2], tvb, *offset2+2, 1, nt);
|
|
break;
|
|
default:
|
|
proto_tree_add_text(pce_notification_obj, tvb, *offset2+2, 1, "Notification Type: %u", nt);
|
|
|
|
}
|
|
|
|
/*it's suppose that obj_length is a a valid date. The object can have optional TLV(s)*/
|
|
*offset2 = (*offset2) + body_obj_obl;
|
|
|
|
dissect_pce_tlv(ti, pce_notification_obj, tvb, offset2, hdr_obj, body_obj_obl, obj_length, ett_pce_obj_notification, len);
|
|
|
|
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* ERROR OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_error_obj(proto_item *ti, proto_tree *pce_tree, tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
proto_tree *pce_error_obj;
|
|
proto_tree *pce_error_types_obj;
|
|
guint8 reserved;
|
|
guint8 flags;
|
|
guint8 error_type;
|
|
guint8 error_value;
|
|
gint hdr_obj=4;
|
|
gint body_obj_obl=4;
|
|
|
|
reserved = tvb_get_guint8(tvb, *offset2);
|
|
flags = tvb_get_guint8(tvb, *offset2+1);
|
|
error_type = tvb_get_guint8(tvb, *offset2+2);
|
|
error_value = tvb_get_guint8(tvb, *offset2+3);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_PCEP_ERROR], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_error_obj = proto_item_add_subtree(ti, ett_pce_obj_error);
|
|
|
|
proto_tree_add_text(pce_error_obj, tvb, *offset2, 1, "Reserved: 0x%02x", reserved);
|
|
proto_tree_add_text(pce_error_obj, tvb, *offset2+1, 1, "Flags: 0x%02x", flags);
|
|
|
|
ti = proto_tree_add_uint(pce_error_obj, pce_filter[PCEF_ERROR_TYPE], tvb, *offset2+2, 1, error_type);
|
|
pce_error_types_obj = proto_item_add_subtree(ti, ett_pce_obj_error);
|
|
|
|
switch(error_type){
|
|
case ESTABLISH_FAILURE:
|
|
|
|
switch(error_value){
|
|
case RX_MALFORM_PKT:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u Reception of a Malformed Message ", error_value);
|
|
break;
|
|
case NO_OPEN_MSG:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u No Open Message received before the expiration of the OpenWait Timer ", error_value);
|
|
break;
|
|
case UNACEP_NO_NEGO_SSESION:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u Unacceptable and non Negotiable session characteristics", error_value);
|
|
break;
|
|
case UNACEP_NEG_SESSION:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u Unacceptable but Negotiable session characteristics", error_value);
|
|
break;
|
|
case TWO_OPEN_MSG_UNACEP:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u Reception of a second Open Message with still Unacceptable Session characteristics", error_value);
|
|
break;
|
|
case RX_PCEERR_UNACEP_SESSION:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u Reception of a PCErr message proposing unacceptable session characteristics", error_value);
|
|
break;
|
|
case NO_KEEPALIVE_PCEERR:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u NO Keepalive or PCErr message received before the expiration of the Keepwait timer supported", error_value);
|
|
break;
|
|
default:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1,
|
|
"Error-value: %u Non defined Error-Value", error_value);
|
|
}
|
|
break;
|
|
|
|
case CAP_NOT_SUPPORTED:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-Value: %u ", error_value);
|
|
break;
|
|
|
|
case UNKNOWN_OBJ:
|
|
switch(error_value){
|
|
case UNRECON_OBJ_CLASS:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u Unrecognized object class", error_value);
|
|
break;
|
|
case UNRECON_OBJ_TYPE:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u Unrecognized object type", error_value);
|
|
break;
|
|
default:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1,
|
|
"Error-value: %u Non defined Error-Value", error_value);
|
|
}
|
|
break;
|
|
case NOT_SUPP_OBJ:
|
|
switch(error_value){
|
|
case NO_SUPP_OBJ:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u Not Supported Object Class", error_value);
|
|
break;
|
|
case NO_SUPP_TYPE:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u Not Supported Object Type", error_value);
|
|
break;
|
|
default:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1,
|
|
"Error-value: %u Non defined Error-Value", error_value);
|
|
}
|
|
break;
|
|
case POLICY_VIOLATION:
|
|
switch(error_value){
|
|
case C_METRIC_SET:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u C bit of the METRIC object set (Request Rejected)", error_value);
|
|
break;
|
|
case O_OBJ_SET:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u O bit of the RP object set (Request Rejected)", error_value);
|
|
break;
|
|
default:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1,
|
|
"Error-value: %u Non defined Error-Value", error_value);
|
|
}
|
|
break;
|
|
case MANDATORY_OBJ_MIS:
|
|
switch(error_value){
|
|
case RP_OBJ_MISS:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u RP Object missing", error_value);
|
|
break;
|
|
case RRO_OBJ_MISS:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u RRO Object missing for a reoptimization request (R bit of the RP Object set) when bandwidth is not equal to 0", error_value);
|
|
break;
|
|
case END_POINT_OBJ_MISS:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-value: %u END-POINTS Objects missing", error_value);
|
|
break;
|
|
default:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1,
|
|
"Error-value: %u Non defined Error-Value", error_value);
|
|
}
|
|
break;
|
|
case SYNCH_PCREQ_MIS:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-Value: %u ", error_value);
|
|
break;
|
|
case UNKNOWN_REQ_REF:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-Value: %u ", error_value);
|
|
break;
|
|
case ATTEMPT_2_SESSION:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-Value: %u ", error_value);
|
|
break;
|
|
case UNRECO_IRO_SUBOBJ:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-Value: %u ", error_value);
|
|
break;
|
|
case UNRECO_EXRS_SUBOBJ:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+3, 1, "Error-Value: %u ", error_value);
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_text(pce_error_types_obj, tvb, *offset2+2, 1, "Error-Type: %u Non defined Error-Value", error_type);
|
|
}
|
|
|
|
/*it's suppose that obj_length is a a valid date. The object can have optional TLV(s)*/
|
|
*offset2 = (*offset2) + body_obj_obl;
|
|
|
|
dissect_pce_tlv(ti, pce_error_obj, tvb, offset2, hdr_obj, body_obj_obl, obj_length, ett_pce_obj_error, len);
|
|
}
|
|
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* LOAD-BALANCING OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_balancing_obj(proto_item *ti, proto_tree *pce_tree, tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
proto_tree *pce_load_balancing_obj;
|
|
guint16 reserved;
|
|
guint8 flags;
|
|
guint8 max_LSP;
|
|
guint32 min_bandwidth;
|
|
gint hdr_obj=4;
|
|
gint body_obj_obl=8;
|
|
|
|
reserved = tvb_get_ntohs(tvb, *offset2);
|
|
flags = tvb_get_guint8(tvb, *offset2+2);
|
|
max_LSP = tvb_get_guint8(tvb, *offset2+3);
|
|
min_bandwidth = tvb_get_ntohl(tvb, *offset2+4);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_LOAD_BALANCING], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_load_balancing_obj = proto_item_add_subtree(ti, ett_pce_obj_load_balancing);
|
|
|
|
proto_tree_add_text(pce_load_balancing_obj, tvb, *offset2, 2, "Reserved: 0x%04x", reserved);
|
|
proto_tree_add_text(pce_load_balancing_obj, tvb, *offset2+2, 1, "Flags: 0x%02x", flags);
|
|
proto_tree_add_text(pce_load_balancing_obj, tvb, *offset2+3, 1, "Maximun Number of TE LSPs: 0x%02x", max_LSP);
|
|
proto_tree_add_text(pce_load_balancing_obj, tvb, *offset2+4, 4, "Minimun Bandwidth: 0x%08x", min_bandwidth);
|
|
|
|
/*it's suppose that obj_length is a a valid date. The object can have optional TLV(s)*/
|
|
*offset2 = (*offset2) + body_obj_obl;
|
|
dissect_pce_tlv(ti, pce_load_balancing_obj, tvb, offset2, hdr_obj, body_obj_obl, obj_length, ett_pce_obj_load_balancing, len);
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* CLOSE OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_close_obj(proto_item *ti, proto_tree *pce_tree, tvbuff_t *tvb, int *offset2, int obj_length, int *len)
|
|
{
|
|
proto_tree *pce_close_obj;
|
|
guint16 reserved;
|
|
guint8 flags;
|
|
guint8 reason;
|
|
gint hdr_obj=4;
|
|
gint body_obj_obl=4;
|
|
|
|
reserved = tvb_get_ntohs(tvb, *offset2);
|
|
flags = tvb_get_guint8(tvb, *offset2+2);
|
|
reason = tvb_get_guint8(tvb, *offset2+3);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_CLOSE], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_close_obj = proto_item_add_subtree(ti, ett_pce_obj_close);
|
|
|
|
proto_tree_add_text(pce_close_obj, tvb, *offset2, 2, "Reserved: 0x%04x", reserved);
|
|
proto_tree_add_text(pce_close_obj, tvb, *offset2+2, 1, "Flags: 0x%01x", flags);
|
|
proto_tree_add_text(pce_close_obj, tvb, *offset2+3, 1, val_to_str(reason, pce_close_reason_obj_vals, "Unknown Object (%u). "));
|
|
|
|
/*it's suppose that obj_length is a a valid date. The object can have optional TLV(s)*/
|
|
*offset2 = (*offset2) + body_obj_obl;
|
|
dissect_pce_tlv(ti, pce_close_obj, tvb, offset2, hdr_obj, body_obj_obl, obj_length, ett_pce_obj_load_balancing, len);
|
|
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* XRO OBJECT
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_xro_obj(proto_item *ti, proto_tree *pce_tree, tvbuff_t *tvb, int *offset2, int obj_length, int obj_class, int *len, int *msg_length)
|
|
{
|
|
proto_tree *pce_xro_obj;
|
|
proto_tree *pce_xro_flags_obj;
|
|
guint16 reserved;
|
|
guint16 flags;
|
|
guint8 x_type;
|
|
guint8 length;
|
|
guint type_xro;
|
|
guint body_subobj_len;
|
|
body_subobj_len = obj_length - 8;
|
|
|
|
reserved = tvb_get_ntohs(tvb, *offset2);
|
|
flags = tvb_get_ntohs(tvb, *offset2+2);
|
|
|
|
ti = proto_tree_add_item(pce_tree, pce_filter[PCEF_OBJ_XRO], tvb, *offset2, obj_length-4, FALSE);
|
|
pce_xro_obj = proto_item_add_subtree(ti, ett_pce_obj_xro);
|
|
proto_tree_add_text(pce_xro_obj, tvb, *offset2, 2, "Reserved: 0x%04x", reserved);
|
|
ti = proto_tree_add_text(pce_xro_obj, tvb, *offset2+2, 2, "Flags: 0x%04x ", flags);
|
|
pce_xro_flags_obj = proto_item_add_subtree(ti, ett_pce_obj_xro);
|
|
proto_tree_add_boolean(pce_xro_flags_obj, pce_xro_flags_f, tvb, *offset2 + 2, 2, flags);
|
|
|
|
*len = *len + 4;
|
|
*offset2 = *offset2 + 4;
|
|
|
|
while(body_subobj_len){
|
|
|
|
x_type = tvb_get_guint8(tvb, *offset2);
|
|
length = tvb_get_guint8(tvb, *offset2+1);
|
|
type_xro = (x_type & Mask_Type);
|
|
|
|
if (body_subobj_len <length) {
|
|
proto_tree_add_text(pce_xro_flags_obj, tvb, *offset2, length, "The packet is bad coded!! \nObject Length = %u", body_subobj_len);
|
|
body_subobj_len = 0;
|
|
*len = *msg_length;
|
|
}
|
|
else{
|
|
body_subobj_len = body_subobj_len - length;
|
|
|
|
switch(type_xro) {
|
|
|
|
case PCE_SUB_IPv4:
|
|
dissect_subobj_ipv4(ti, pce_xro_obj, tvb, offset2, len, obj_class, ett_pce_obj_xro, x_type, length);
|
|
break;
|
|
case PCE_SUB_IPv6:
|
|
dissect_subobj_ipv6(ti, pce_xro_obj, tvb, offset2, len, obj_class, ett_pce_obj_xro, x_type, length);
|
|
break;
|
|
case PCE_SUB_UNNUMB_INTERFACE_ID_XRO:
|
|
dissect_subobj_unnumb_interfaceID(ti, pce_xro_obj, tvb, offset2, len, obj_class, ett_pce_obj_xro, x_type, length);
|
|
break;
|
|
case PCE_SUB_AUTONOMOUS_SYS_NUM_XRO:
|
|
dissect_subobj_autonomous_sys_num(ti, pce_xro_obj, tvb, offset2, len, obj_class, ett_pce_obj_xro, x_type, length);
|
|
break;
|
|
case PCE_SUB_SRLG:
|
|
dissect_subobj_srlg(ti, pce_xro_obj, tvb, offset2, len, ett_pce_obj_xro, x_type, length);
|
|
break;
|
|
default:
|
|
ti = proto_tree_add_text(pce_xro_obj, tvb, *offset2-4, length, "Non defined subobject (%d)", type_xro);
|
|
*offset2 = *offset2 + length;
|
|
*len = *len + length;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*------------------------------------------------------------------------------*/
|
|
/* Dissect in Objects */
|
|
/*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_obj_tree(proto_tree *ti, tvbuff_t *tvb, proto_tree *pce_tree, int len, int offset, int msg_length)
|
|
{
|
|
|
|
guint8 obj_class;
|
|
guint8 ot_res_p_i;
|
|
guint16 obj_length;
|
|
int type;
|
|
int offset2;
|
|
proto_tree *pce_object_tree;
|
|
proto_tree *pce_header_obj_flags;
|
|
|
|
while (len < msg_length) {
|
|
|
|
obj_class = tvb_get_guint8(tvb, offset);
|
|
ot_res_p_i = tvb_get_guint8(tvb, offset+1);
|
|
obj_length = tvb_get_ntohs(tvb, offset+2);
|
|
type = (ot_res_p_i & MASK_OBJ_TYPE)>>4;
|
|
|
|
ti = proto_tree_add_text(pce_tree, tvb, offset, 4, "PCE %s Header", val_to_str(obj_class, pce_class_vals, "Unknown Message (%u). "));
|
|
pce_object_tree = proto_item_add_subtree(ti, ett_pce_obj_hdr);
|
|
|
|
proto_tree_add_text(pce_object_tree, tvb, offset+1, 1, "Object Type: %u", type);
|
|
|
|
ti = proto_tree_add_text(pce_object_tree, tvb, offset+1, 1, "Flags");
|
|
pce_header_obj_flags = proto_item_add_subtree(ti, ett_pce_hdr);
|
|
proto_tree_add_boolean(pce_header_obj_flags, pce_hdr_obj_flags_reserved, tvb, offset+1, 1, ot_res_p_i);
|
|
proto_tree_add_boolean(pce_header_obj_flags, pce_hdr_obj_flags_p, tvb, offset+1, 1, ot_res_p_i);
|
|
proto_tree_add_boolean(pce_header_obj_flags, pce_hdr_obj_flags_i, tvb, offset+1, 1, ot_res_p_i);
|
|
|
|
if (obj_length < 4) {
|
|
proto_tree_add_text(pce_object_tree, tvb, offset+2, 2, "Length: %u (bogus, must be >= 4)", obj_length);
|
|
break;
|
|
}
|
|
|
|
proto_tree_add_text(pce_object_tree, tvb, offset+2, 2, "Object Length: %u", obj_length);
|
|
proto_tree_add_uint(pce_object_tree, pce_filter[PCEF_OBJECT], tvb, offset, 1, obj_class);
|
|
|
|
offset2 = offset+4;
|
|
len = len + 4;
|
|
|
|
switch(obj_class) {
|
|
|
|
case PCE_OPEN_OBJ:
|
|
dissect_pce_open_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_RP_OBJ:
|
|
dissect_pce_rp_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_NO_PATH_OBJ:
|
|
dissect_pce_no_path_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_END_POINT_OBJ:
|
|
dissect_pce_end_point_obj(ti, pce_tree, tvb, &offset2, obj_length, &len, type);
|
|
break;
|
|
|
|
case PCE_BANDWIDTH_OBJ:
|
|
dissect_pce_bandwidth_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_METRIC_OBJ:
|
|
dissect_pce_metric_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_EXPLICIT_ROUTE_OBJ:
|
|
dissect_pce_explicit_route_obj(ti, pce_tree, tvb, &offset2, obj_length, obj_class, &len, &msg_length);
|
|
break;
|
|
|
|
case PCE_RECORD_ROUTE_OBJ:
|
|
dissect_pce_record_route_obj(ti, pce_tree, tvb, &offset2, obj_length, obj_class, &len, &msg_length);
|
|
break;
|
|
|
|
case PCE_LSPA_OBJ:
|
|
dissect_pce_lspa_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_IRO_OBJ:
|
|
dissect_pce_iro_obj(ti, pce_tree, tvb, &offset2, obj_length, obj_class, &len, &msg_length);
|
|
break;
|
|
|
|
case PCE_SVEC_OBJ:
|
|
dissect_pce_svec_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_NOTIFICATION_OBJ:
|
|
dissect_pce_notification_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_PCEP_ERROR_OBJ:
|
|
dissect_pce_error_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_LOAD_BALANCING_OBJ:
|
|
dissect_pce_balancing_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_CLOSE_OBJ:
|
|
dissect_pce_close_obj(ti, pce_tree, tvb, &offset2, obj_length, &len);
|
|
break;
|
|
|
|
case PCE_XRO_OBJ:
|
|
dissect_pce_xro_obj(ti, pce_tree, tvb, &offset2, obj_length, obj_class, &len, &msg_length);
|
|
break;
|
|
|
|
default:
|
|
ti = proto_tree_add_text(pce_tree, tvb, offset2, obj_length-4, "PCE Object BODY non defined (%u)", type);
|
|
break;
|
|
|
|
}
|
|
|
|
offset += obj_length;
|
|
}
|
|
}
|
|
|
|
|
|
/*------------------------------------------------------------------------------
|
|
* Dissect a single PCE message in a tree
|
|
*------------------------------------------------------------------------------*/
|
|
static void
|
|
dissect_pce_msg_tree(tvbuff_t *tvb, proto_tree *tree, guint tree_mode, packet_info *pinfo)
|
|
{
|
|
proto_tree *pce_tree = NULL;
|
|
proto_tree *pce_header_tree;
|
|
proto_tree *ti;
|
|
proto_tree *pce_header_msg_flags;
|
|
|
|
int offset = 0;
|
|
int len=0;
|
|
guint8 ver_flags;
|
|
guint8 message_type;
|
|
guint16 msg_length;
|
|
|
|
ver_flags = tvb_get_guint8(tvb, 0);
|
|
message_type = tvb_get_guint8(tvb, 1);
|
|
msg_length = tvb_get_ntohs(tvb, 2);
|
|
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "%s", val_to_str(message_type, message_type_vals, "Unknown Message (%u). "));
|
|
}
|
|
|
|
ti = proto_tree_add_item(tree, proto_pce, tvb, offset, msg_length, FALSE);
|
|
pce_tree = proto_item_add_subtree(ti, tree_mode);
|
|
|
|
proto_item_append_text(pce_tree, ": ");
|
|
proto_item_append_text(pce_tree, "Path Computation Element communication protocol");
|
|
|
|
ti = proto_tree_add_text(pce_tree, tvb, offset, 4, "PCE %s Header", val_to_str(message_type, message_type_vals, "Unknown Message (%u). "));
|
|
|
|
pce_header_tree = proto_item_add_subtree(ti, ett_pce_hdr);
|
|
|
|
proto_tree_add_text(pce_header_tree, tvb, offset, 1, "PCE Version: %x", (ver_flags & 0x20)>>5);
|
|
|
|
ti = proto_tree_add_text(pce_header_tree, tvb, offset, 1, "Flags: ");
|
|
pce_header_msg_flags = proto_item_add_subtree(ti, ett_pce_hdr);
|
|
proto_tree_add_boolean(pce_header_msg_flags, pce_hdr_msg_flags_reserved, tvb, offset, 1, (ver_flags & 0x1f));
|
|
proto_tree_add_uint(pce_header_tree, pce_filter[PCEF_MSG], tvb, offset+1, 1, message_type);
|
|
proto_tree_add_text(pce_header_tree, tvb, offset+2, 2, "Message length: %u", msg_length);
|
|
|
|
switch (PCEF_MSG + message_type) {
|
|
|
|
case PCEF_OPEN:
|
|
case PCEF_KEEPALIVE:
|
|
case PCEF_PATH_COMPUTATION_REQUEST:
|
|
case PCEF_PATH_COMPUTATION_REPLY:
|
|
case PCEF_NOTIFICATION:
|
|
case PCEF_ERROR:
|
|
case PCEF_CLOSE:
|
|
|
|
proto_tree_add_boolean_hidden(pce_header_tree, pce_filter[PCEF_MSG + message_type], tvb, offset+1, 1, 1);
|
|
break;
|
|
|
|
default:
|
|
proto_tree_add_protocol_format(pce_header_tree, proto_malformed, tvb, offset+1, 1, "Invalid message type: %u", message_type);
|
|
return;
|
|
}
|
|
|
|
offset = 4;
|
|
len = 4;
|
|
|
|
dissect_pce_obj_tree(ti, tvb, pce_tree, len, offset, msg_length);
|
|
}
|
|
|
|
|
|
static guint
|
|
get_pce_message_len(packet_info *pinfo _U_, tvbuff_t *tvb, int offset)
|
|
{
|
|
guint16 plen;
|
|
|
|
/* Get the length of the PCE packet.*/
|
|
plen = tvb_get_ntohs(tvb, offset+2);
|
|
|
|
return plen;
|
|
}
|
|
|
|
static void
|
|
dissect_pce_pdu(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
|
|
/* Set up structures needed to add the protocol subtree and manage it */
|
|
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL))
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "PCE");
|
|
|
|
/* Clear out stuff in the info column */
|
|
if(check_col(pinfo->cinfo,COL_INFO))
|
|
col_clear(pinfo->cinfo,COL_INFO);
|
|
|
|
if (tree) {
|
|
dissect_pce_msg_tree(tvb, tree, ett_pce, pinfo);
|
|
}
|
|
|
|
};
|
|
|
|
|
|
static void
|
|
dissect_pce(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
tcp_dissect_pdus(tvb, pinfo, tree, TRUE, 4, get_pce_message_len,
|
|
dissect_pce_pdu);
|
|
}
|
|
|
|
/*Register le protocol with wireshark*/
|
|
void
|
|
proto_register_pce(void){
|
|
|
|
/*Register the protocol name and description*/
|
|
proto_pce = proto_register_protocol (
|
|
"PCE Protocol", /* name*/
|
|
"PCE", /* short name */
|
|
"pce" /* abbrev*/);
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_pce, pcef_info, array_length(pcef_info));
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proto_register_subtree_array(ett, array_length(ett));
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pce_dissector_table = register_dissector_table("pce.proto", "PCE Protocol", FT_UINT8, BASE_DEC);
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}
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/*Dissector Handoff*/
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void
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proto_reg_handoff_pce(void)
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{
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dissector_handle_t pce_handle;
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pce_handle = create_dissector_handle(dissect_pce, proto_pce);
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dissector_add("tcp.port", TCP_PORT_PPCE, pce_handle);
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data_handle = find_dissector("data");
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}
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