/external/tcpdump/print-isoclns.c
C | 1459 lines | 1186 code | 196 blank | 77 comment | 103 complexity | 2cc0b47658d5aeddd0b7e8c84c6e5424 MD5 | raw file
- /*
- * Copyright (c) 1992, 1993, 1994, 1995, 1996
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that: (1) source code distributions
- * retain the above copyright notice and this paragraph in its entirety, (2)
- * distributions including binary code include the above copyright notice and
- * this paragraph in its entirety in the documentation or other materials
- * provided with the distribution, and (3) all advertising materials mentioning
- * features or use of this software display the following acknowledgement:
- * ``This product includes software developed by the University of California,
- * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
- * the University nor the names of its contributors may be used to endorse
- * or promote products derived from this software without specific prior
- * written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Original code by Matt Thomas, Digital Equipment Corporation
- *
- * Extensively modified by Hannes Gredler (hannes@juniper.net) for more
- * complete IS-IS & CLNP support.
- */
- #ifndef lint
- static const char rcsid[] _U_ =
- "@(#) $Header: /tcpdump/master/tcpdump/print-isoclns.c,v 1.133.2.25 2007/03/02 09:20:27 hannes Exp $ (LBL)";
- #endif
- #ifdef HAVE_CONFIG_H
- #include "config.h"
- #endif
- #include <tcpdump-stdinc.h>
- #include <stdio.h>
- #include <string.h>
- #include "interface.h"
- #include "addrtoname.h"
- #include "ethertype.h"
- #include "ether.h"
- #include "nlpid.h"
- #include "extract.h"
- #include "gmpls.h"
- #include "oui.h"
- #define IPV4 1 /* AFI value */
- #define IPV6 2 /* AFI value */
- /*
- * IS-IS is defined in ISO 10589. Look there for protocol definitions.
- */
- #define SYSTEM_ID_LEN ETHER_ADDR_LEN
- #define NODE_ID_LEN SYSTEM_ID_LEN+1
- #define LSP_ID_LEN SYSTEM_ID_LEN+2
- #define ISIS_VERSION 1
- #define ESIS_VERSION 1
- #define CLNP_VERSION 1
- #define ISIS_PDU_TYPE_MASK 0x1F
- #define ESIS_PDU_TYPE_MASK 0x1F
- #define CLNP_PDU_TYPE_MASK 0x1F
- #define CLNP_FLAG_MASK 0xE0
- #define ISIS_LAN_PRIORITY_MASK 0x7F
- #define ISIS_PDU_L1_LAN_IIH 15
- #define ISIS_PDU_L2_LAN_IIH 16
- #define ISIS_PDU_PTP_IIH 17
- #define ISIS_PDU_L1_LSP 18
- #define ISIS_PDU_L2_LSP 20
- #define ISIS_PDU_L1_CSNP 24
- #define ISIS_PDU_L2_CSNP 25
- #define ISIS_PDU_L1_PSNP 26
- #define ISIS_PDU_L2_PSNP 27
- static struct tok isis_pdu_values[] = {
- { ISIS_PDU_L1_LAN_IIH, "L1 Lan IIH"},
- { ISIS_PDU_L2_LAN_IIH, "L2 Lan IIH"},
- { ISIS_PDU_PTP_IIH, "p2p IIH"},
- { ISIS_PDU_L1_LSP, "L1 LSP"},
- { ISIS_PDU_L2_LSP, "L2 LSP"},
- { ISIS_PDU_L1_CSNP, "L1 CSNP"},
- { ISIS_PDU_L2_CSNP, "L2 CSNP"},
- { ISIS_PDU_L1_PSNP, "L1 PSNP"},
- { ISIS_PDU_L2_PSNP, "L2 PSNP"},
- { 0, NULL}
- };
- /*
- * A TLV is a tuple of a type, length and a value and is normally used for
- * encoding information in all sorts of places. This is an enumeration of
- * the well known types.
- *
- * list taken from rfc3359 plus some memory from veterans ;-)
- */
- #define ISIS_TLV_AREA_ADDR 1 /* iso10589 */
- #define ISIS_TLV_IS_REACH 2 /* iso10589 */
- #define ISIS_TLV_ESNEIGH 3 /* iso10589 */
- #define ISIS_TLV_PART_DIS 4 /* iso10589 */
- #define ISIS_TLV_PREFIX_NEIGH 5 /* iso10589 */
- #define ISIS_TLV_ISNEIGH 6 /* iso10589 */
- #define ISIS_TLV_ISNEIGH_VARLEN 7 /* iso10589 */
- #define ISIS_TLV_PADDING 8 /* iso10589 */
- #define ISIS_TLV_LSP 9 /* iso10589 */
- #define ISIS_TLV_AUTH 10 /* iso10589, rfc3567 */
- #define ISIS_TLV_CHECKSUM 12 /* rfc3358 */
- #define ISIS_TLV_CHECKSUM_MINLEN 2
- #define ISIS_TLV_LSP_BUFFERSIZE 14 /* iso10589 rev2 */
- #define ISIS_TLV_LSP_BUFFERSIZE_MINLEN 2
- #define ISIS_TLV_EXT_IS_REACH 22 /* draft-ietf-isis-traffic-05 */
- #define ISIS_TLV_IS_ALIAS_ID 24 /* draft-ietf-isis-ext-lsp-frags-02 */
- #define ISIS_TLV_DECNET_PHASE4 42
- #define ISIS_TLV_LUCENT_PRIVATE 66
- #define ISIS_TLV_INT_IP_REACH 128 /* rfc1195, rfc2966 */
- #define ISIS_TLV_PROTOCOLS 129 /* rfc1195 */
- #define ISIS_TLV_EXT_IP_REACH 130 /* rfc1195, rfc2966 */
- #define ISIS_TLV_IDRP_INFO 131 /* rfc1195 */
- #define ISIS_TLV_IDRP_INFO_MINLEN 1
- #define ISIS_TLV_IPADDR 132 /* rfc1195 */
- #define ISIS_TLV_IPAUTH 133 /* rfc1195 */
- #define ISIS_TLV_TE_ROUTER_ID 134 /* draft-ietf-isis-traffic-05 */
- #define ISIS_TLV_EXTD_IP_REACH 135 /* draft-ietf-isis-traffic-05 */
- #define ISIS_TLV_HOSTNAME 137 /* rfc2763 */
- #define ISIS_TLV_SHARED_RISK_GROUP 138 /* draft-ietf-isis-gmpls-extensions */
- #define ISIS_TLV_NORTEL_PRIVATE1 176
- #define ISIS_TLV_NORTEL_PRIVATE2 177
- #define ISIS_TLV_RESTART_SIGNALING 211 /* rfc3847 */
- #define ISIS_TLV_RESTART_SIGNALING_FLAGLEN 1
- #define ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN 2
- #define ISIS_TLV_MT_IS_REACH 222 /* draft-ietf-isis-wg-multi-topology-05 */
- #define ISIS_TLV_MT_SUPPORTED 229 /* draft-ietf-isis-wg-multi-topology-05 */
- #define ISIS_TLV_MT_SUPPORTED_MINLEN 2
- #define ISIS_TLV_IP6ADDR 232 /* draft-ietf-isis-ipv6-02 */
- #define ISIS_TLV_MT_IP_REACH 235 /* draft-ietf-isis-wg-multi-topology-05 */
- #define ISIS_TLV_IP6_REACH 236 /* draft-ietf-isis-ipv6-02 */
- #define ISIS_TLV_MT_IP6_REACH 237 /* draft-ietf-isis-wg-multi-topology-05 */
- #define ISIS_TLV_PTP_ADJ 240 /* rfc3373 */
- #define ISIS_TLV_IIH_SEQNR 241 /* draft-shen-isis-iih-sequence-00 */
- #define ISIS_TLV_IIH_SEQNR_MINLEN 4
- #define ISIS_TLV_VENDOR_PRIVATE 250 /* draft-ietf-isis-experimental-tlv-01 */
- #define ISIS_TLV_VENDOR_PRIVATE_MINLEN 3
- static struct tok isis_tlv_values[] = {
- { ISIS_TLV_AREA_ADDR, "Area address(es)"},
- { ISIS_TLV_IS_REACH, "IS Reachability"},
- { ISIS_TLV_ESNEIGH, "ES Neighbor(s)"},
- { ISIS_TLV_PART_DIS, "Partition DIS"},
- { ISIS_TLV_PREFIX_NEIGH, "Prefix Neighbors"},
- { ISIS_TLV_ISNEIGH, "IS Neighbor(s)"},
- { ISIS_TLV_ISNEIGH_VARLEN, "IS Neighbor(s) (variable length)"},
- { ISIS_TLV_PADDING, "Padding"},
- { ISIS_TLV_LSP, "LSP entries"},
- { ISIS_TLV_AUTH, "Authentication"},
- { ISIS_TLV_CHECKSUM, "Checksum"},
- { ISIS_TLV_LSP_BUFFERSIZE, "LSP Buffersize"},
- { ISIS_TLV_EXT_IS_REACH, "Extended IS Reachability"},
- { ISIS_TLV_IS_ALIAS_ID, "IS Alias ID"},
- { ISIS_TLV_DECNET_PHASE4, "DECnet Phase IV"},
- { ISIS_TLV_LUCENT_PRIVATE, "Lucent Proprietary"},
- { ISIS_TLV_INT_IP_REACH, "IPv4 Internal Reachability"},
- { ISIS_TLV_PROTOCOLS, "Protocols supported"},
- { ISIS_TLV_EXT_IP_REACH, "IPv4 External Reachability"},
- { ISIS_TLV_IDRP_INFO, "Inter-Domain Information Type"},
- { ISIS_TLV_IPADDR, "IPv4 Interface address(es)"},
- { ISIS_TLV_IPAUTH, "IPv4 authentication (deprecated)"},
- { ISIS_TLV_TE_ROUTER_ID, "Traffic Engineering Router ID"},
- { ISIS_TLV_EXTD_IP_REACH, "Extended IPv4 Reachability"},
- { ISIS_TLV_SHARED_RISK_GROUP, "Shared Risk Link Group"},
- { ISIS_TLV_NORTEL_PRIVATE1, "Nortel Proprietary"},
- { ISIS_TLV_NORTEL_PRIVATE2, "Nortel Proprietary"},
- { ISIS_TLV_HOSTNAME, "Hostname"},
- { ISIS_TLV_RESTART_SIGNALING, "Restart Signaling"},
- { ISIS_TLV_MT_IS_REACH, "Multi Topology IS Reachability"},
- { ISIS_TLV_MT_SUPPORTED, "Multi Topology"},
- { ISIS_TLV_IP6ADDR, "IPv6 Interface address(es)"},
- { ISIS_TLV_MT_IP_REACH, "Multi-Topology IPv4 Reachability"},
- { ISIS_TLV_IP6_REACH, "IPv6 reachability"},
- { ISIS_TLV_MT_IP6_REACH, "Multi-Topology IP6 Reachability"},
- { ISIS_TLV_PTP_ADJ, "Point-to-point Adjacency State"},
- { ISIS_TLV_IIH_SEQNR, "Hello PDU Sequence Number"},
- { ISIS_TLV_VENDOR_PRIVATE, "Vendor Private"},
- { 0, NULL }
- };
- #define ESIS_OPTION_PROTOCOLS 129
- #define ESIS_OPTION_QOS_MAINTENANCE 195 /* iso9542 */
- #define ESIS_OPTION_SECURITY 197 /* iso9542 */
- #define ESIS_OPTION_ES_CONF_TIME 198 /* iso9542 */
- #define ESIS_OPTION_PRIORITY 205 /* iso9542 */
- #define ESIS_OPTION_ADDRESS_MASK 225 /* iso9542 */
- #define ESIS_OPTION_SNPA_MASK 226 /* iso9542 */
- static struct tok esis_option_values[] = {
- { ESIS_OPTION_PROTOCOLS, "Protocols supported"},
- { ESIS_OPTION_QOS_MAINTENANCE, "QoS Maintenance" },
- { ESIS_OPTION_SECURITY, "Security" },
- { ESIS_OPTION_ES_CONF_TIME, "ES Configuration Time" },
- { ESIS_OPTION_PRIORITY, "Priority" },
- { ESIS_OPTION_ADDRESS_MASK, "Addressk Mask" },
- { ESIS_OPTION_SNPA_MASK, "SNPA Mask" },
- { 0, NULL }
- };
- #define CLNP_OPTION_DISCARD_REASON 193
- #define CLNP_OPTION_QOS_MAINTENANCE 195 /* iso8473 */
- #define CLNP_OPTION_SECURITY 197 /* iso8473 */
- #define CLNP_OPTION_SOURCE_ROUTING 200 /* iso8473 */
- #define CLNP_OPTION_ROUTE_RECORDING 203 /* iso8473 */
- #define CLNP_OPTION_PADDING 204 /* iso8473 */
- #define CLNP_OPTION_PRIORITY 205 /* iso8473 */
- static struct tok clnp_option_values[] = {
- { CLNP_OPTION_DISCARD_REASON, "Discard Reason"},
- { CLNP_OPTION_PRIORITY, "Priority"},
- { CLNP_OPTION_QOS_MAINTENANCE, "QoS Maintenance"},
- { CLNP_OPTION_SECURITY, "Security"},
- { CLNP_OPTION_SOURCE_ROUTING, "Source Routing"},
- { CLNP_OPTION_ROUTE_RECORDING, "Route Recording"},
- { CLNP_OPTION_PADDING, "Padding"},
- { 0, NULL }
- };
- static struct tok clnp_option_rfd_class_values[] = {
- { 0x0, "General"},
- { 0x8, "Address"},
- { 0x9, "Source Routeing"},
- { 0xa, "Lifetime"},
- { 0xb, "PDU Discarded"},
- { 0xc, "Reassembly"},
- { 0, NULL }
- };
- static struct tok clnp_option_rfd_general_values[] = {
- { 0x0, "Reason not specified"},
- { 0x1, "Protocol procedure error"},
- { 0x2, "Incorrect checksum"},
- { 0x3, "PDU discarded due to congestion"},
- { 0x4, "Header syntax error (cannot be parsed)"},
- { 0x5, "Segmentation needed but not permitted"},
- { 0x6, "Incomplete PDU received"},
- { 0x7, "Duplicate option"},
- { 0, NULL }
- };
- static struct tok clnp_option_rfd_address_values[] = {
- { 0x0, "Destination address unreachable"},
- { 0x1, "Destination address unknown"},
- { 0, NULL }
- };
- static struct tok clnp_option_rfd_source_routeing_values[] = {
- { 0x0, "Unspecified source routeing error"},
- { 0x1, "Syntax error in source routeing field"},
- { 0x2, "Unknown address in source routeing field"},
- { 0x3, "Path not acceptable"},
- { 0, NULL }
- };
- static struct tok clnp_option_rfd_lifetime_values[] = {
- { 0x0, "Lifetime expired while data unit in transit"},
- { 0x1, "Lifetime expired during reassembly"},
- { 0, NULL }
- };
- static struct tok clnp_option_rfd_pdu_discard_values[] = {
- { 0x0, "Unsupported option not specified"},
- { 0x1, "Unsupported protocol version"},
- { 0x2, "Unsupported security option"},
- { 0x3, "Unsupported source routeing option"},
- { 0x4, "Unsupported recording of route option"},
- { 0, NULL }
- };
- static struct tok clnp_option_rfd_reassembly_values[] = {
- { 0x0, "Reassembly interference"},
- { 0, NULL }
- };
- /* array of 16 error-classes */
- static struct tok *clnp_option_rfd_error_class[] = {
- clnp_option_rfd_general_values,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- NULL,
- clnp_option_rfd_address_values,
- clnp_option_rfd_source_routeing_values,
- clnp_option_rfd_lifetime_values,
- clnp_option_rfd_pdu_discard_values,
- clnp_option_rfd_reassembly_values,
- NULL,
- NULL,
- NULL
- };
- #define CLNP_OPTION_OPTION_QOS_MASK 0x3f
- #define CLNP_OPTION_SCOPE_MASK 0xc0
- #define CLNP_OPTION_SCOPE_SA_SPEC 0x40
- #define CLNP_OPTION_SCOPE_DA_SPEC 0x80
- #define CLNP_OPTION_SCOPE_GLOBAL 0xc0
- static struct tok clnp_option_scope_values[] = {
- { CLNP_OPTION_SCOPE_SA_SPEC, "Source Address Specific"},
- { CLNP_OPTION_SCOPE_DA_SPEC, "Destination Address Specific"},
- { CLNP_OPTION_SCOPE_GLOBAL, "Globally unique"},
- { 0, NULL }
- };
- static struct tok clnp_option_sr_rr_values[] = {
- { 0x0, "partial"},
- { 0x1, "complete"},
- { 0, NULL }
- };
- static struct tok clnp_option_sr_rr_string_values[] = {
- { CLNP_OPTION_SOURCE_ROUTING, "source routing"},
- { CLNP_OPTION_ROUTE_RECORDING, "recording of route in progress"},
- { 0, NULL }
- };
- static struct tok clnp_option_qos_global_values[] = {
- { 0x20, "reserved"},
- { 0x10, "sequencing vs. delay"},
- { 0x08, "congested"},
- { 0x04, "delay vs. cost"},
- { 0x02, "error vs. delay"},
- { 0x01, "error vs. cost"},
- { 0, NULL }
- };
- #define ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP 3 /* draft-ietf-isis-traffic-05 */
- #define ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID 4 /* draft-ietf-isis-gmpls-extensions */
- #define ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID 5 /* draft-ietf-isis-traffic-05 */
- #define ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR 6 /* draft-ietf-isis-traffic-05 */
- #define ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR 8 /* draft-ietf-isis-traffic-05 */
- #define ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW 9 /* draft-ietf-isis-traffic-05 */
- #define ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW 10 /* draft-ietf-isis-traffic-05 */
- #define ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW 11 /* rfc4124 */
- #define ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD 12 /* draft-ietf-tewg-diff-te-proto-06 */
- #define ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC 18 /* draft-ietf-isis-traffic-05 */
- #define ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE 20 /* draft-ietf-isis-gmpls-extensions */
- #define ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR 21 /* draft-ietf-isis-gmpls-extensions */
- #define ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS 22 /* rfc4124 */
- static struct tok isis_ext_is_reach_subtlv_values[] = {
- { ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP, "Administrative groups" },
- { ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID, "Link Local/Remote Identifier" },
- { ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID, "Link Remote Identifier" },
- { ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR, "IPv4 interface address" },
- { ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR, "IPv4 neighbor address" },
- { ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW, "Maximum link bandwidth" },
- { ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW, "Reservable link bandwidth" },
- { ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW, "Unreserved bandwidth" },
- { ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC, "Traffic Engineering Metric" },
- { ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE, "Link Protection Type" },
- { ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR, "Interface Switching Capability" },
- { ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD, "Bandwidth Constraints (old)" },
- { ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS, "Bandwidth Constraints" },
- { 250, "Reserved for cisco specific extensions" },
- { 251, "Reserved for cisco specific extensions" },
- { 252, "Reserved for cisco specific extensions" },
- { 253, "Reserved for cisco specific extensions" },
- { 254, "Reserved for cisco specific extensions" },
- { 255, "Reserved for future expansion" },
- { 0, NULL }
- };
- #define ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32 1 /* draft-ietf-isis-admin-tags-01 */
- #define ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64 2 /* draft-ietf-isis-admin-tags-01 */
- #define ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR 117 /* draft-ietf-isis-wg-multi-topology-05 */
- static struct tok isis_ext_ip_reach_subtlv_values[] = {
- { ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32, "32-Bit Administrative tag" },
- { ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64, "64-Bit Administrative tag" },
- { ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR, "Management Prefix Color" },
- { 0, NULL }
- };
- #define ISIS_SUBTLV_AUTH_SIMPLE 1
- #define ISIS_SUBTLV_AUTH_MD5 54
- #define ISIS_SUBTLV_AUTH_MD5_LEN 16
- #define ISIS_SUBTLV_AUTH_PRIVATE 255
- static struct tok isis_subtlv_auth_values[] = {
- { ISIS_SUBTLV_AUTH_SIMPLE, "simple text password"},
- { ISIS_SUBTLV_AUTH_MD5, "HMAC-MD5 password"},
- { ISIS_SUBTLV_AUTH_PRIVATE, "Routing Domain private password"},
- { 0, NULL }
- };
- #define ISIS_SUBTLV_IDRP_RES 0
- #define ISIS_SUBTLV_IDRP_LOCAL 1
- #define ISIS_SUBTLV_IDRP_ASN 2
- static struct tok isis_subtlv_idrp_values[] = {
- { ISIS_SUBTLV_IDRP_RES, "Reserved"},
- { ISIS_SUBTLV_IDRP_LOCAL, "Routing-Domain Specific"},
- { ISIS_SUBTLV_IDRP_ASN, "AS Number Tag"},
- { 0, NULL}
- };
- #define CLNP_SEGMENT_PART 0x80
- #define CLNP_MORE_SEGMENTS 0x40
- #define CLNP_REQUEST_ER 0x20
- static struct tok clnp_flag_values[] = {
- { CLNP_SEGMENT_PART, "Segmentation permitted"},
- { CLNP_MORE_SEGMENTS, "more Segments"},
- { CLNP_REQUEST_ER, "request Error Report"},
- { 0, NULL}
- };
- #define ISIS_MASK_LSP_OL_BIT(x) ((x)&0x4)
- #define ISIS_MASK_LSP_ISTYPE_BITS(x) ((x)&0x3)
- #define ISIS_MASK_LSP_PARTITION_BIT(x) ((x)&0x80)
- #define ISIS_MASK_LSP_ATT_BITS(x) ((x)&0x78)
- #define ISIS_MASK_LSP_ATT_ERROR_BIT(x) ((x)&0x40)
- #define ISIS_MASK_LSP_ATT_EXPENSE_BIT(x) ((x)&0x20)
- #define ISIS_MASK_LSP_ATT_DELAY_BIT(x) ((x)&0x10)
- #define ISIS_MASK_LSP_ATT_DEFAULT_BIT(x) ((x)&0x8)
- #define ISIS_MASK_MTID(x) ((x)&0x0fff)
- #define ISIS_MASK_MTFLAGS(x) ((x)&0xf000)
- static struct tok isis_mt_flag_values[] = {
- { 0x4000, "sub-TLVs present"},
- { 0x8000, "ATT bit set"},
- { 0, NULL}
- };
- #define ISIS_MASK_TLV_EXTD_IP_UPDOWN(x) ((x)&0x80)
- #define ISIS_MASK_TLV_EXTD_IP_SUBTLV(x) ((x)&0x40)
- #define ISIS_MASK_TLV_EXTD_IP6_IE(x) ((x)&0x40)
- #define ISIS_MASK_TLV_EXTD_IP6_SUBTLV(x) ((x)&0x20)
- #define ISIS_LSP_TLV_METRIC_SUPPORTED(x) ((x)&0x80)
- #define ISIS_LSP_TLV_METRIC_IE(x) ((x)&0x40)
- #define ISIS_LSP_TLV_METRIC_UPDOWN(x) ((x)&0x80)
- #define ISIS_LSP_TLV_METRIC_VALUE(x) ((x)&0x3f)
- #define ISIS_MASK_TLV_SHARED_RISK_GROUP(x) ((x)&0x1)
- static struct tok isis_mt_values[] = {
- { 0, "IPv4 unicast"},
- { 1, "In-Band Management"},
- { 2, "IPv6 unicast"},
- { 3, "Multicast"},
- { 4095, "Development, Experimental or Proprietary"},
- { 0, NULL }
- };
- static struct tok isis_iih_circuit_type_values[] = {
- { 1, "Level 1 only"},
- { 2, "Level 2 only"},
- { 3, "Level 1, Level 2"},
- { 0, NULL}
- };
- #define ISIS_LSP_TYPE_UNUSED0 0
- #define ISIS_LSP_TYPE_LEVEL_1 1
- #define ISIS_LSP_TYPE_UNUSED2 2
- #define ISIS_LSP_TYPE_LEVEL_2 3
- static struct tok isis_lsp_istype_values[] = {
- { ISIS_LSP_TYPE_UNUSED0, "Unused 0x0 (invalid)"},
- { ISIS_LSP_TYPE_LEVEL_1, "L1 IS"},
- { ISIS_LSP_TYPE_UNUSED2, "Unused 0x2 (invalid)"},
- { ISIS_LSP_TYPE_LEVEL_2, "L2 IS"},
- { 0, NULL }
- };
- /*
- * Katz's point to point adjacency TLV uses codes to tell us the state of
- * the remote adjacency. Enumerate them.
- */
- #define ISIS_PTP_ADJ_UP 0
- #define ISIS_PTP_ADJ_INIT 1
- #define ISIS_PTP_ADJ_DOWN 2
- static struct tok isis_ptp_adjancey_values[] = {
- { ISIS_PTP_ADJ_UP, "Up" },
- { ISIS_PTP_ADJ_INIT, "Initializing" },
- { ISIS_PTP_ADJ_DOWN, "Down" },
- { 0, NULL}
- };
- struct isis_tlv_ptp_adj {
- u_int8_t adjacency_state;
- u_int8_t extd_local_circuit_id[4];
- u_int8_t neighbor_sysid[SYSTEM_ID_LEN];
- u_int8_t neighbor_extd_local_circuit_id[4];
- };
- static int osi_cksum(const u_int8_t *, u_int);
- static int clnp_print(const u_int8_t *, u_int);
- static void esis_print(const u_int8_t *, u_int);
- static int isis_print(const u_int8_t *, u_int);
- struct isis_metric_block {
- u_int8_t metric_default;
- u_int8_t metric_delay;
- u_int8_t metric_expense;
- u_int8_t metric_error;
- };
- struct isis_tlv_is_reach {
- struct isis_metric_block isis_metric_block;
- u_int8_t neighbor_nodeid[NODE_ID_LEN];
- };
- struct isis_tlv_es_reach {
- struct isis_metric_block isis_metric_block;
- u_int8_t neighbor_sysid[SYSTEM_ID_LEN];
- };
- struct isis_tlv_ip_reach {
- struct isis_metric_block isis_metric_block;
- u_int8_t prefix[4];
- u_int8_t mask[4];
- };
- static struct tok isis_is_reach_virtual_values[] = {
- { 0, "IsNotVirtual"},
- { 1, "IsVirtual"},
- { 0, NULL }
- };
- static struct tok isis_restart_flag_values[] = {
- { 0x1, "Restart Request"},
- { 0x2, "Restart Acknowledgement"},
- { 0x4, "Suppress adjacency advertisement"},
- { 0, NULL }
- };
- struct isis_common_header {
- u_int8_t nlpid;
- u_int8_t fixed_len;
- u_int8_t version; /* Protocol version */
- u_int8_t id_length;
- u_int8_t pdu_type; /* 3 MSbits are reserved */
- u_int8_t pdu_version; /* Packet format version */
- u_int8_t reserved;
- u_int8_t max_area;
- };
- struct isis_iih_lan_header {
- u_int8_t circuit_type;
- u_int8_t source_id[SYSTEM_ID_LEN];
- u_int8_t holding_time[2];
- u_int8_t pdu_len[2];
- u_int8_t priority;
- u_int8_t lan_id[NODE_ID_LEN];
- };
- struct isis_iih_ptp_header {
- u_int8_t circuit_type;
- u_int8_t source_id[SYSTEM_ID_LEN];
- u_int8_t holding_time[2];
- u_int8_t pdu_len[2];
- u_int8_t circuit_id;
- };
- struct isis_lsp_header {
- u_int8_t pdu_len[2];
- u_int8_t remaining_lifetime[2];
- u_int8_t lsp_id[LSP_ID_LEN];
- u_int8_t sequence_number[4];
- u_int8_t checksum[2];
- u_int8_t typeblock;
- };
- struct isis_csnp_header {
- u_int8_t pdu_len[2];
- u_int8_t source_id[NODE_ID_LEN];
- u_int8_t start_lsp_id[LSP_ID_LEN];
- u_int8_t end_lsp_id[LSP_ID_LEN];
- };
- struct isis_psnp_header {
- u_int8_t pdu_len[2];
- u_int8_t source_id[NODE_ID_LEN];
- };
- struct isis_tlv_lsp {
- u_int8_t remaining_lifetime[2];
- u_int8_t lsp_id[LSP_ID_LEN];
- u_int8_t sequence_number[4];
- u_int8_t checksum[2];
- };
- #define ISIS_COMMON_HEADER_SIZE (sizeof(struct isis_common_header))
- #define ISIS_IIH_LAN_HEADER_SIZE (sizeof(struct isis_iih_lan_header))
- #define ISIS_IIH_PTP_HEADER_SIZE (sizeof(struct isis_iih_ptp_header))
- #define ISIS_LSP_HEADER_SIZE (sizeof(struct isis_lsp_header))
- #define ISIS_CSNP_HEADER_SIZE (sizeof(struct isis_csnp_header))
- #define ISIS_PSNP_HEADER_SIZE (sizeof(struct isis_psnp_header))
- void isoclns_print(const u_int8_t *p, u_int length, u_int caplen)
- {
- const struct isis_common_header *header;
- header = (const struct isis_common_header *)p;
- if (caplen <= 1) { /* enough bytes on the wire ? */
- printf("|OSI");
- return;
- }
- if (eflag)
- printf("OSI NLPID %s (0x%02x): ",
- tok2str(nlpid_values,"Unknown",*p),
- *p);
-
- switch (*p) {
- case NLPID_CLNP:
- if (!clnp_print(p, length))
- print_unknown_data(p,"\n\t",caplen);
- break;
- case NLPID_ESIS:
- esis_print(p, length);
- return;
- case NLPID_ISIS:
- if (!isis_print(p, length))
- print_unknown_data(p,"\n\t",caplen);
- break;
- case NLPID_NULLNS:
- (void)printf("%slength: %u",
- eflag ? "" : ", ",
- length);
- break;
- case NLPID_Q933:
- q933_print(p+1, length-1);
- break;
- case NLPID_IP:
- ip_print(gndo, p+1, length-1);
- break;
- #ifdef INET6
- case NLPID_IP6:
- ip6_print(p+1, length-1);
- break;
- #endif
- case NLPID_PPP:
- ppp_print(p+1, length-1);
- break;
- default:
- if (!eflag)
- printf("OSI NLPID 0x%02x unknown",*p);
- (void)printf("%slength: %u",
- eflag ? "" : ", ",
- length);
- if (caplen > 1)
- print_unknown_data(p,"\n\t",caplen);
- break;
- }
- }
- #define CLNP_PDU_ER 1
- #define CLNP_PDU_DT 28
- #define CLNP_PDU_MD 29
- #define CLNP_PDU_ERQ 30
- #define CLNP_PDU_ERP 31
- static struct tok clnp_pdu_values[] = {
- { CLNP_PDU_ER, "Error Report"},
- { CLNP_PDU_MD, "MD"},
- { CLNP_PDU_DT, "Data"},
- { CLNP_PDU_ERQ, "Echo Request"},
- { CLNP_PDU_ERP, "Echo Response"},
- { 0, NULL }
- };
- struct clnp_header_t {
- u_int8_t nlpid;
- u_int8_t length_indicator;
- u_int8_t version;
- u_int8_t lifetime; /* units of 500ms */
- u_int8_t type;
- u_int8_t segment_length[2];
- u_int8_t cksum[2];
- };
- struct clnp_segment_header_t {
- u_int8_t data_unit_id[2];
- u_int8_t segment_offset[2];
- u_int8_t total_length[2];
- };
- /*
- * clnp_print
- * Decode CLNP packets. Return 0 on error.
- */
- static int clnp_print (const u_int8_t *pptr, u_int length)
- {
- const u_int8_t *optr,*source_address,*dest_address;
- u_int li,tlen,nsap_offset,source_address_length,dest_address_length, clnp_pdu_type, clnp_flags;
- const struct clnp_header_t *clnp_header;
- const struct clnp_segment_header_t *clnp_segment_header;
- u_int8_t rfd_error_major,rfd_error_minor;
- clnp_header = (const struct clnp_header_t *) pptr;
- TCHECK(*clnp_header);
- li = clnp_header->length_indicator;
- optr = pptr;
- if (!eflag)
- printf("CLNP");
- /*
- * Sanity checking of the header.
- */
- if (clnp_header->version != CLNP_VERSION) {
- printf("version %d packet not supported", clnp_header->version);
- return (0);
- }
- /* FIXME further header sanity checking */
- clnp_pdu_type = clnp_header->type & CLNP_PDU_TYPE_MASK;
- clnp_flags = clnp_header->type & CLNP_FLAG_MASK;
- pptr += sizeof(struct clnp_header_t);
- li -= sizeof(struct clnp_header_t);
- dest_address_length = *pptr;
- dest_address = pptr + 1;
- pptr += (1 + dest_address_length);
- li -= (1 + dest_address_length);
- source_address_length = *pptr;
- source_address = pptr +1;
- pptr += (1 + source_address_length);
- li -= (1 + source_address_length);
- if (vflag < 1) {
- printf("%s%s > %s, %s, length %u",
- eflag ? "" : ", ",
- isonsap_string(source_address, source_address_length),
- isonsap_string(dest_address, dest_address_length),
- tok2str(clnp_pdu_values,"unknown (%u)",clnp_pdu_type),
- length);
- return (1);
- }
- printf("%slength %u",eflag ? "" : ", ",length);
- printf("\n\t%s PDU, hlen: %u, v: %u, lifetime: %u.%us, Segment PDU length: %u, checksum: 0x%04x ",
- tok2str(clnp_pdu_values, "unknown (%u)",clnp_pdu_type),
- clnp_header->length_indicator,
- clnp_header->version,
- clnp_header->lifetime/2,
- (clnp_header->lifetime%2)*5,
- EXTRACT_16BITS(clnp_header->segment_length),
- EXTRACT_16BITS(clnp_header->cksum));
- /* do not attempt to verify the checksum if it is zero */
- if (EXTRACT_16BITS(clnp_header->cksum) == 0)
- printf("(unverified)");
- else printf("(%s)", osi_cksum(optr, clnp_header->length_indicator) ? "incorrect" : "correct");
- printf("\n\tFlags [%s]",
- bittok2str(clnp_flag_values,"none",clnp_flags));
- printf("\n\tsource address (length %u): %s\n\tdest address (length %u): %s",
- source_address_length,
- isonsap_string(source_address, source_address_length),
- dest_address_length,
- isonsap_string(dest_address,dest_address_length));
- if (clnp_flags & CLNP_SEGMENT_PART) {
- clnp_segment_header = (const struct clnp_segment_header_t *) pptr;
- TCHECK(*clnp_segment_header);
- printf("\n\tData Unit ID: 0x%04x, Segment Offset: %u, Total PDU Length: %u",
- EXTRACT_16BITS(clnp_segment_header->data_unit_id),
- EXTRACT_16BITS(clnp_segment_header->segment_offset),
- EXTRACT_16BITS(clnp_segment_header->total_length));
- pptr+=sizeof(const struct clnp_segment_header_t);
- li-=sizeof(const struct clnp_segment_header_t);
- }
- /* now walk the options */
- while (li >= 2) {
- u_int op, opli;
- const u_int8_t *tptr;
-
- TCHECK2(*pptr, 2);
- if (li < 2) {
- printf(", bad opts/li");
- return (0);
- }
- op = *pptr++;
- opli = *pptr++;
- li -= 2;
- TCHECK2(*pptr, opli);
- if (opli > li) {
- printf(", opt (%d) too long", op);
- return (0);
- }
- li -= opli;
- tptr = pptr;
- tlen = opli;
-
- printf("\n\t %s Option #%u, length %u, value: ",
- tok2str(clnp_option_values,"Unknown",op),
- op,
- opli);
- switch (op) {
- case CLNP_OPTION_ROUTE_RECORDING: /* those two options share the format */
- case CLNP_OPTION_SOURCE_ROUTING:
- printf("%s %s",
- tok2str(clnp_option_sr_rr_values,"Unknown",*tptr),
- tok2str(clnp_option_sr_rr_string_values,"Unknown Option %u",op));
- nsap_offset=*(tptr+1);
- if (nsap_offset == 0) {
- printf(" Bad NSAP offset (0)");
- break;
- }
- nsap_offset-=1; /* offset to nsap list */
- if (nsap_offset > tlen) {
- printf(" Bad NSAP offset (past end of option)");
- break;
- }
- tptr+=nsap_offset;
- tlen-=nsap_offset;
- while (tlen > 0) {
- source_address_length=*tptr;
- if (tlen < source_address_length+1) {
- printf("\n\t NSAP address goes past end of option");
- break;
- }
- if (source_address_length > 0) {
- source_address=(tptr+1);
- TCHECK2(*source_address, source_address_length);
- printf("\n\t NSAP address (length %u): %s",
- source_address_length,
- isonsap_string(source_address, source_address_length));
- }
- tlen-=source_address_length+1;
- }
- break;
- case CLNP_OPTION_PRIORITY:
- printf("0x%1x", *tptr&0x0f);
- break;
- case CLNP_OPTION_QOS_MAINTENANCE:
- printf("\n\t Format Code: %s",
- tok2str(clnp_option_scope_values,"Reserved",*tptr&CLNP_OPTION_SCOPE_MASK));
- if ((*tptr&CLNP_OPTION_SCOPE_MASK) == CLNP_OPTION_SCOPE_GLOBAL)
- printf("\n\t QoS Flags [%s]",
- bittok2str(clnp_option_qos_global_values,
- "none",
- *tptr&CLNP_OPTION_OPTION_QOS_MASK));
- break;
- case CLNP_OPTION_SECURITY:
- printf("\n\t Format Code: %s, Security-Level %u",
- tok2str(clnp_option_scope_values,"Reserved",*tptr&CLNP_OPTION_SCOPE_MASK),
- *(tptr+1));
- break;
- case CLNP_OPTION_DISCARD_REASON:
- rfd_error_major = (*tptr&0xf0) >> 4;
- rfd_error_minor = *tptr&0x0f;
- printf("\n\t Class: %s Error (0x%01x), %s (0x%01x)",
- tok2str(clnp_option_rfd_class_values,"Unknown",rfd_error_major),
- rfd_error_major,
- tok2str(clnp_option_rfd_error_class[rfd_error_major],"Unknown",rfd_error_minor),
- rfd_error_minor);
- break;
- case CLNP_OPTION_PADDING:
- printf("padding data");
- break;
- /*
- * FIXME those are the defined Options that lack a decoder
- * you are welcome to contribute code ;-)
- */
- default:
- print_unknown_data(tptr,"\n\t ",opli);
- break;
- }
- if (vflag > 1)
- print_unknown_data(pptr,"\n\t ",opli);
- pptr += opli;
- }
- switch (clnp_pdu_type) {
- case CLNP_PDU_ER: /* fall through */
- case CLNP_PDU_ERP:
- TCHECK(*pptr);
- if (*(pptr) == NLPID_CLNP) {
- printf("\n\t-----original packet-----\n\t");
- /* FIXME recursion protection */
- clnp_print(pptr, length-clnp_header->length_indicator);
- break;
- }
- case CLNP_PDU_DT:
- case CLNP_PDU_MD:
- case CLNP_PDU_ERQ:
-
- default:
- /* dump the PDU specific data */
- if (length-(pptr-optr) > 0) {
- printf("\n\t undecoded non-header data, length %u",length-clnp_header->length_indicator);
- print_unknown_data(pptr,"\n\t ",length-(pptr-optr));
- }
- }
- return (1);
- trunc:
- fputs("[|clnp]", stdout);
- return (1);
- }
- #define ESIS_PDU_REDIRECT 6
- #define ESIS_PDU_ESH 2
- #define ESIS_PDU_ISH 4
- static struct tok esis_pdu_values[] = {
- { ESIS_PDU_REDIRECT, "redirect"},
- { ESIS_PDU_ESH, "ESH"},
- { ESIS_PDU_ISH, "ISH"},
- { 0, NULL }
- };
- struct esis_header_t {
- u_int8_t nlpid;
- u_int8_t length_indicator;
- u_int8_t version;
- u_int8_t reserved;
- u_int8_t type;
- u_int8_t holdtime[2];
- u_int8_t cksum[2];
- };
- static void
- esis_print(const u_int8_t *pptr, u_int length)
- {
- const u_int8_t *optr;
- u_int li,esis_pdu_type,source_address_length, source_address_number;
- const struct esis_header_t *esis_header;
- if (!eflag)
- printf("ES-IS");
- if (length <= 2) {
- if (qflag)
- printf("bad pkt!");
- else
- printf("no header at all!");
- return;
- }
- esis_header = (const struct esis_header_t *) pptr;
- TCHECK(*esis_header);
- li = esis_header->length_indicator;
- optr = pptr;
- /*
- * Sanity checking of the header.
- */
- if (esis_header->nlpid != NLPID_ESIS) {
- printf(" nlpid 0x%02x packet not supported", esis_header->nlpid);
- return;
- }
- if (esis_header->version != ESIS_VERSION) {
- printf(" version %d packet not supported", esis_header->version);
- return;
- }
-
- if (li > length) {
- printf(" length indicator(%d) > PDU size (%d)!", li, length);
- return;
- }
- if (li < sizeof(struct esis_header_t) + 2) {
- printf(" length indicator < min PDU size %d:", li);
- while (--length != 0)
- printf("%02X", *pptr++);
- return;
- }
- esis_pdu_type = esis_header->type & ESIS_PDU_TYPE_MASK;
- if (vflag < 1) {
- printf("%s%s, length %u",
- eflag ? "" : ", ",
- tok2str(esis_pdu_values,"unknown type (%u)",esis_pdu_type),
- length);
- return;
- } else
- printf("%slength %u\n\t%s (%u)",
- eflag ? "" : ", ",
- length,
- tok2str(esis_pdu_values,"unknown type: %u", esis_pdu_type),
- esis_pdu_type);
- printf(", v: %u%s", esis_header->version, esis_header->version == ESIS_VERSION ? "" : "unsupported" );
- printf(", checksum: 0x%04x ", EXTRACT_16BITS(esis_header->cksum));
- /* do not attempt to verify the checksum if it is zero */
- if (EXTRACT_16BITS(esis_header->cksum) == 0)
- printf("(unverified)");
- else
- printf("(%s)", osi_cksum(pptr, li) ? "incorrect" : "correct");
- printf(", holding time: %us, length indicator: %u",EXTRACT_16BITS(esis_header->holdtime),li);
- if (vflag > 1)
- print_unknown_data(optr,"\n\t",sizeof(struct esis_header_t));
- pptr += sizeof(struct esis_header_t);
- li -= sizeof(struct esis_header_t);
- switch (esis_pdu_type) {
- case ESIS_PDU_REDIRECT: {
- const u_int8_t *dst, *snpa, *neta;
- u_int dstl, snpal, netal;
- TCHECK(*pptr);
- if (li < 1) {
- printf(", bad redirect/li");
- return;
- }
- dstl = *pptr;
- pptr++;
- li--;
- TCHECK2(*pptr, dstl);
- if (li < dstl) {
- printf(", bad redirect/li");
- return;
- }
- dst = pptr;
- pptr += dstl;
- li -= dstl;
- printf("\n\t %s", isonsap_string(dst,dstl));
- TCHECK(*pptr);
- if (li < 1) {
- printf(", bad redirect/li");
- return;
- }
- snpal = *pptr;
- pptr++;
- li--;
- TCHECK2(*pptr, snpal);
- if (li < snpal) {
- printf(", bad redirect/li");
- return;
- }
- snpa = pptr;
- pptr += snpal;
- li -= snpal;
- TCHECK(*pptr);
- if (li < 1) {
- printf(", bad redirect/li");
- return;
- }
- netal = *pptr;
- pptr++;
- TCHECK2(*pptr, netal);
- if (li < netal) {
- printf(", bad redirect/li");
- return;
- }
- neta = pptr;
- pptr += netal;
- li -= netal;
- if (netal == 0)
- printf("\n\t %s", etheraddr_string(snpa));
- else
- printf("\n\t %s", isonsap_string(neta,netal));
- break;
- }
- case ESIS_PDU_ESH:
- TCHECK(*pptr);
- if (li < 1) {
- printf(", bad esh/li");
- return;
- }
- source_address_number = *pptr;
- pptr++;
- li--;
- printf("\n\t Number of Source Addresses: %u", source_address_number);
-
- while (source_address_number > 0) {
- TCHECK(*pptr);
- if (li < 1) {
- printf(", bad esh/li");
- return;
- }
- source_address_length = *pptr;
- pptr++;
- li--;
- TCHECK2(*pptr, source_address_length);
- if (li < source_address_length) {
- printf(", bad esh/li");
- return;
- }
- printf("\n\t NET (length: %u): %s",
- source_address_length,
- isonsap_string(pptr,source_address_length));
- pptr += source_address_length;
- li -= source_address_length;
- source_address_number--;
- }
- break;
- case ESIS_PDU_ISH: {
- TCHECK(*pptr);
- if (li < 1) {
- printf(", bad ish/li");
- return;
- }
- source_address_length = *pptr;
- pptr++;
- li--;
- TCHECK2(*pptr, source_address_length);
- if (li < source_address_length) {
- printf(", bad ish/li");
- return;
- }
- printf("\n\t NET (length: %u): %s", source_address_length, isonsap_string(pptr, source_address_length));
- pptr += source_address_length;
- li -= source_address_length;
- break;
- }
- default:
- if (vflag <= 1) {
- if (pptr < snapend)
- print_unknown_data(pptr,"\n\t ",snapend-pptr);
- }
- return;
- }
- /* now walk the options */
- while (li >= 2) {
- u_int op, opli;
- const u_int8_t *tptr;
-
- TCHECK2(*pptr, 2);
- if (li < 2) {
- printf(", bad opts/li");
- return;
- }
- op = *pptr++;
- opli = *pptr++;
- li -= 2;
- if (opli > li) {
- printf(", opt (%d) too long", op);
- return;
- }
- li -= opli;
- tptr = pptr;
-
- printf("\n\t %s Option #%u, length %u, value: ",
- tok2str(esis_option_values,"Unknown",op),
- op,
- opli);
- switch (op) {
- case ESIS_OPTION_ES_CONF_TIME:
- TCHECK2(*pptr, 2);
- printf("%us", EXTRACT_16BITS(tptr));
- break;
- case ESIS_OPTION_PROTOCOLS:
- while (opli>0) {
- TCHECK(*pptr);
- printf("%s (0x%02x)",
- tok2str(nlpid_values,
- "unknown",
- *tptr),
- *tptr);
- if (opli>1) /* further NPLIDs ? - put comma */
- printf(", ");
- tptr++;
- opli--;
- }
- break;
- /*
- * FIXME those are the defined Options that lack a decoder
- * you are welcome to contribute code ;-)
- */
- case ESIS_OPTION_QOS_MAINTENANCE:
- case ESIS_OPTION_SECURITY:
- case ESIS_OPTION_PRIORITY:
- case ESIS_OPTION_ADDRESS_MASK:
- case ESIS_OPTION_SNPA_MASK:
- default:
- print_unknown_data(tptr,"\n\t ",opli);
- break;
- }
- if (vflag > 1)
- print_unknown_data(pptr,"\n\t ",opli);
- pptr += opli;
- }
- trunc:
- return;
- }
- /* shared routine for printing system, node and lsp-ids */
- static char *
- isis_print_id(const u_int8_t *cp, int id_len)
- {
- int i;
- static char id[sizeof("xxxx.xxxx.xxxx.yy-zz")];
- char *pos = id;
- for (i = 1; i <= SYSTEM_ID_LEN; i++) {
- snprintf(pos, sizeof(id) - (pos - id), "%02x", *cp++);
- pos += strlen(pos);
- if (i == 2 || i == 4)
- *pos++ = '.';
- }
- if (id_len >= NODE_ID_LEN) {
- snprintf(pos, sizeof(id) - (pos - id), ".%02x", *cp++);
- pos += strlen(pos);
- }
- if (id_len == LSP_ID_LEN)
- snprintf(pos, sizeof(id) - (pos - id), "-%02x", *cp);
- return (id);
- }
- /* print the 4-byte metric block which is common found in the old-style TLVs */
- static int
- isis_print_metric_block (const struct isis_metric_block *isis_metric_block)
- {
- printf(", Default Metric: %d, %s",
- ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_default),
- ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_default) ? "External" : "Internal");
- if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_delay))
- printf("\n\t\t Delay Metric: %d, %s",
- ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_delay),
- ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_delay) ? "External" : "Internal");
- if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_expense))
- printf("\n\t\t Expense Metric: %d, %s",
- ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_expense),
- ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_expense) ? "External" : "Internal");
- if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_error))
- printf("\n\t\t Error Metric: %d, %s",
- ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_error),
- ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_error) ? "External" : "Internal");
- return(1); /* everything is ok */
- }
- static int
- isis_print_tlv_ip_reach (const u_int8_t *cp, const char *ident, int length)
- {
- int prefix_len;
- const struct isis_tlv_ip_reach *tlv_ip_reach;
- tlv_ip_reach = (const struct isis_tlv_ip_reach *)cp;
- while (length > 0) {
- if ((size_t)length < sizeof(*tlv_ip_reach)) {
- printf("short IPv4 Reachability (%d vs %lu)",
- length,
- (unsigned long)sizeof(*tlv_ip_reach));
- return (0);
- }
- if (!TTEST(*tlv_ip_reach))
- return (0);
- prefix_len = mask2plen(EXTRACT_32BITS(tlv_ip_reach->mask));
- if (prefix_len == -1)
- printf("%sIPv4 prefix: %s mask %s",
- ident,
- ipaddr_string((tlv_ip_reach->prefix)),
- ipaddr_string((tlv_ip_reach->mask)));
- else
- printf("%sIPv4 prefix: %15s/%u",
- ident,
- ipaddr_string((tlv_ip_reach->prefix)),
- prefix_len);
- printf(", Distribution: %s, Metric: %u, %s",
- ISIS_LSP_TLV_METRIC_UPDOWN(tlv_ip_reach->isis_metric_block.metric_default) ? "down" : "up",
- ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_default),
- ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_default) ? "External" : "Internal");
- if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_delay))
- printf("%s Delay Metric: %u, %s",
- ident,
- ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_delay),
- ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_delay) ? "External" : "Internal");
-
- if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_expense))
- printf("%s Expense Metric: %u, %s",
- ident,
- ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_expense),
- ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_expense) ? "External" : "Internal");
-
- if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_error))
- printf("%s Error Metric: %u, %s",
- ident,
- ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_error),
- ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_error) ? "External" : "Internal");
- length -= sizeof(struct isis_tlv_ip_reach);
- tlv_ip_reach++;
- }
- return (1);
- }
- /*
- * this is the common IP-REACH subTLV decoder it is called
- * from various EXTD-IP REACH TLVs (135,235,236,237)
- */
- static int
- isis_print_ip_reach_subtlv (const u_int8_t *tptr,int subt,int subl,const char *ident) {
- /* first lets see if we know the subTLVs name*/
- printf("%s%s subTLV #%u, length: %u",
- ident,
- tok2str(isis_ext_ip_reach_subtlv_values,
- "unknown",
- subt),
- subt,
- subl);
- if (!TTEST2(*tptr,subl))
- goto trunctlv;
- switch(subt) {
- case ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR: /* fall through */
- case ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32:
- while (subl >= 4) {
- printf(", 0x%08x (=%u)",
- EXTRACT_32BITS(tptr),
- EXTRACT_32BITS(tptr));
- tptr+=4;
- subl-=4;
- }
- break;
- case ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64:
- while (subl >= 8) {
- printf(", 0x%08x%08x",
- EXTRACT_32BITS(tptr),
- EXTRACT_32BITS(tptr+4));
- tptr+=8;
- subl-=8;
- }
- break;
- default:
- if(!print_unknown_data(tptr,"\n\t\t ",
- subl))
- return(0);
- break;
- }
- return(1);
-
- trunctlv:
- printf("%spacket exceeded snapshot",ident);
- return(0);
- }
- /*
- * this is the common IS-REACH subTLV decoder it is called
- * from isis_print_ext_is_reach()
- */
- static int
- isis_print_is_reach_subtlv (const u_int8_t *tptr,u_int subt,u_int subl,const char *ident) {
- u_int te_class,priority_level;
- union { /* int to float conversion buffer for several subTLVs */
- float f;
- u_int32_t i;
- } bw;
- /* first lets see if we know the subTLVs name*/
- printf("%s%s subTLV #%u, length: %u",
- ident,
- tok2str(isis_ext_is_reach_subtlv_values,
- "unknown",
- subt),
- subt,
- subl);
- if (!TTEST2(*tptr,subl))
- goto trunctlv;
- switch(subt) {
- case ISIS_SUBTLV_EXT_IS_REACH_ADMIN_GROUP:
- case ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID:
- case ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID:
- if (subl >= 4) {
- printf(", 0x%08x", EXTRACT_32BITS(tptr));
- if (subl == 8) /* draft-ietf-isis-gmpls-extensions */
- printf(", 0x%08x", EXTRACT_32BITS(tptr+4));
- }
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR:
- case ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR:
- if (subl >= sizeof(struct in_addr))
- printf(", %s", ipaddr_string(tptr));
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW :
- case ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW:
- if (subl >= 4) {
- bw.i = EXTRACT_32BITS(tptr);
- printf(", %.3f Mbps", bw.f*8/1000000 );
- }
- break;
- case ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW :
- if (subl >= 32) {
- for (te_class = 0; te_class < 8; te_class++) {
- bw.i = EXTRACT_32BITS(tptr);
- printf("%s TE-Class %u: %.3f Mbps",
-