diff options
Diffstat (limited to 'print-rsvp.c')
| -rw-r--r-- | print-rsvp.c | 2069 |
1 files changed, 2069 insertions, 0 deletions
diff --git a/print-rsvp.c b/print-rsvp.c new file mode 100644 index 0000000..23b6d5a --- /dev/null +++ b/print-rsvp.c @@ -0,0 +1,2069 @@ +/* + * Copyright (c) 1998-2007 The TCPDUMP project + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that: (1) source code + * distributions retain the above copyright notice and this paragraph + * in its entirety, and (2) distributions including binary code include + * the above copyright notice and this paragraph in its entirety in + * the documentation or other materials provided with the distribution. + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND + * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT + * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE. + * + * Original code by Hannes Gredler (hannes@gredler.at) + */ + +/* \summary: Resource ReSerVation Protocol (RSVP) printer */ + +/* specification: RFC 2205 */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif + +#include "netdissect-stdinc.h" + +#include "netdissect.h" +#include "extract.h" +#include "addrtoname.h" +#include "ethertype.h" +#include "gmpls.h" +#include "af.h" +#include "signature.h" + + +/* + * RFC 2205 common header + * + * 0 1 2 3 + * +-------------+-------------+-------------+-------------+ + * | Vers | Flags| Msg Type | RSVP Checksum | + * +-------------+-------------+-------------+-------------+ + * | Send_TTL | (Reserved) | RSVP Length | + * +-------------+-------------+-------------+-------------+ + * + */ + +struct rsvp_common_header { + nd_uint8_t version_flags; + nd_uint8_t msg_type; + nd_uint16_t checksum; + nd_uint8_t ttl; + nd_byte reserved[1]; + nd_uint16_t length; +}; + +/* + * RFC2205 object header + * + * + * 0 1 2 3 + * +-------------+-------------+-------------+-------------+ + * | Length (bytes) | Class-Num | C-Type | + * +-------------+-------------+-------------+-------------+ + * | | + * // (Object contents) // + * | | + * +-------------+-------------+-------------+-------------+ + */ + +struct rsvp_object_header { + nd_uint16_t length; + nd_uint8_t class_num; + nd_uint8_t ctype; +}; + +#define RSVP_VERSION 1 +#define RSVP_EXTRACT_VERSION(x) (((x)&0xf0)>>4) +#define RSVP_EXTRACT_FLAGS(x) ((x)&0x0f) + +#define RSVP_MSGTYPE_PATH 1 +#define RSVP_MSGTYPE_RESV 2 +#define RSVP_MSGTYPE_PATHERR 3 +#define RSVP_MSGTYPE_RESVERR 4 +#define RSVP_MSGTYPE_PATHTEAR 5 +#define RSVP_MSGTYPE_RESVTEAR 6 +#define RSVP_MSGTYPE_RESVCONF 7 +#define RSVP_MSGTYPE_BUNDLE 12 +#define RSVP_MSGTYPE_ACK 13 +#define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */ +#define RSVP_MSGTYPE_SREFRESH 15 +#define RSVP_MSGTYPE_HELLO 20 + +static const struct tok rsvp_msg_type_values[] = { + { RSVP_MSGTYPE_PATH, "Path" }, + { RSVP_MSGTYPE_RESV, "Resv" }, + { RSVP_MSGTYPE_PATHERR, "PathErr" }, + { RSVP_MSGTYPE_RESVERR, "ResvErr" }, + { RSVP_MSGTYPE_PATHTEAR, "PathTear" }, + { RSVP_MSGTYPE_RESVTEAR, "ResvTear" }, + { RSVP_MSGTYPE_RESVCONF, "ResvConf" }, + { RSVP_MSGTYPE_BUNDLE, "Bundle" }, + { RSVP_MSGTYPE_ACK, "Acknowledgement" }, + { RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" }, + { RSVP_MSGTYPE_SREFRESH, "Refresh" }, + { RSVP_MSGTYPE_HELLO, "Hello" }, + { 0, NULL} +}; + +static const struct tok rsvp_header_flag_values[] = { + { 0x01, "Refresh reduction capable" }, /* rfc2961 */ + { 0, NULL} +}; + +static const struct tok rsvp_obj_capability_flag_values[] = { + { 0x0004, "RecoveryPath Transmit Enabled" }, + { 0x0002, "RecoveryPath Desired" }, + { 0x0001, "RecoveryPath Srefresh Capable" }, + { 0, NULL} +}; + +#define RSVP_OBJ_SESSION 1 /* rfc2205 */ +#define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */ +#define RSVP_OBJ_INTEGRITY 4 /* rfc2747 */ +#define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */ +#define RSVP_OBJ_ERROR_SPEC 6 +#define RSVP_OBJ_SCOPE 7 +#define RSVP_OBJ_STYLE 8 /* rfc2205 */ +#define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */ +#define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */ +#define RSVP_OBJ_SENDER_TEMPLATE 11 +#define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */ +#define RSVP_OBJ_ADSPEC 13 /* rfc2215 */ +#define RSVP_OBJ_POLICY_DATA 14 +#define RSVP_OBJ_CONFIRM 15 /* rfc2205 */ +#define RSVP_OBJ_LABEL 16 /* rfc3209 */ +#define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */ +#define RSVP_OBJ_ERO 20 /* rfc3209 */ +#define RSVP_OBJ_RRO 21 /* rfc3209 */ +#define RSVP_OBJ_HELLO 22 /* rfc3209 */ +#define RSVP_OBJ_MESSAGE_ID 23 /* rfc2961 */ +#define RSVP_OBJ_MESSAGE_ID_ACK 24 /* rfc2961 */ +#define RSVP_OBJ_MESSAGE_ID_LIST 25 /* rfc2961 */ +#define RSVP_OBJ_RECOVERY_LABEL 34 /* rfc3473 */ +#define RSVP_OBJ_UPSTREAM_LABEL 35 /* rfc3473 */ +#define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */ +#define RSVP_OBJ_PROTECTION 37 /* rfc3473 */ +#define RSVP_OBJ_S2L 50 /* rfc4875 */ +#define RSVP_OBJ_DETOUR 63 /* rfc4090 */ +#define RSVP_OBJ_CLASSTYPE 66 /* rfc4124 */ +#define RSVP_OBJ_CLASSTYPE_OLD 125 /* draft-ietf-tewg-diff-te-proto-07 */ +#define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */ +#define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */ +#define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */ +#define RSVP_OBJ_CAPABILITY 134 /* rfc5063 */ +#define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */ +#define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */ +#define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */ +#define RSVP_OBJ_FASTREROUTE 205 /* rfc4090 */ +#define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */ +#define RSVP_OBJ_GENERALIZED_UNI 229 /* OIF RSVP extensions UNI 1.0 Signaling, Rel. 2 */ +#define RSVP_OBJ_CALL_ID 230 /* rfc3474 */ +#define RSVP_OBJ_CALL_OPS 236 /* rfc3474 */ + +static const struct tok rsvp_obj_values[] = { + { RSVP_OBJ_SESSION, "Session" }, + { RSVP_OBJ_RSVP_HOP, "RSVP Hop" }, + { RSVP_OBJ_INTEGRITY, "Integrity" }, + { RSVP_OBJ_TIME_VALUES, "Time Values" }, + { RSVP_OBJ_ERROR_SPEC, "Error Spec" }, + { RSVP_OBJ_SCOPE, "Scope" }, + { RSVP_OBJ_STYLE, "Style" }, + { RSVP_OBJ_FLOWSPEC, "Flowspec" }, + { RSVP_OBJ_FILTERSPEC, "FilterSpec" }, + { RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" }, + { RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" }, + { RSVP_OBJ_ADSPEC, "Adspec" }, + { RSVP_OBJ_POLICY_DATA, "Policy Data" }, + { RSVP_OBJ_CONFIRM, "Confirm" }, + { RSVP_OBJ_LABEL, "Label" }, + { RSVP_OBJ_LABEL_REQ, "Label Request" }, + { RSVP_OBJ_ERO, "ERO" }, + { RSVP_OBJ_RRO, "RRO" }, + { RSVP_OBJ_HELLO, "Hello" }, + { RSVP_OBJ_MESSAGE_ID, "Message ID" }, + { RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" }, + { RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" }, + { RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" }, + { RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" }, + { RSVP_OBJ_LABEL_SET, "Label Set" }, + { RSVP_OBJ_ACCEPT_LABEL_SET, "Acceptable Label Set" }, + { RSVP_OBJ_DETOUR, "Detour" }, + { RSVP_OBJ_CLASSTYPE, "Class Type" }, + { RSVP_OBJ_CLASSTYPE_OLD, "Class Type (old)" }, + { RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" }, + { RSVP_OBJ_PROPERTIES, "Properties" }, + { RSVP_OBJ_FASTREROUTE, "Fast Re-Route" }, + { RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" }, + { RSVP_OBJ_GENERALIZED_UNI, "Generalized UNI" }, + { RSVP_OBJ_CALL_ID, "Call-ID" }, + { RSVP_OBJ_CALL_OPS, "Call Capability" }, + { RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" }, + { RSVP_OBJ_CAPABILITY, "Capability" }, + { RSVP_OBJ_NOTIFY_REQ, "Notify Request" }, + { RSVP_OBJ_PROTECTION, "Protection" }, + { RSVP_OBJ_ADMIN_STATUS, "Administrative Status" }, + { RSVP_OBJ_S2L, "Sub-LSP to LSP" }, + { 0, NULL} +}; + +#define RSVP_CTYPE_IPV4 1 +#define RSVP_CTYPE_IPV6 2 +#define RSVP_CTYPE_TUNNEL_IPV4 7 +#define RSVP_CTYPE_TUNNEL_IPV6 8 +#define RSVP_CTYPE_UNI_IPV4 11 /* OIF RSVP extensions UNI 1.0 Signaling Rel. 2 */ +#define RSVP_CTYPE_1 1 +#define RSVP_CTYPE_2 2 +#define RSVP_CTYPE_3 3 +#define RSVP_CTYPE_4 4 +#define RSVP_CTYPE_12 12 +#define RSVP_CTYPE_13 13 +#define RSVP_CTYPE_14 14 + +/* + * the ctypes are not globally unique so for + * translating it to strings we build a table based + * on objects offsetted by the ctype + */ + +static const struct tok rsvp_ctype_values[] = { + { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" }, + { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" }, + { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" }, + { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" }, + { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV4, "IPv4" }, + { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV6, "IPv6" }, + { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" }, + { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" }, + { 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" }, + { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" }, + { 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" }, + { 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" }, + { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" }, + { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" }, + { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" }, + { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, + { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" }, + { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" }, + { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" }, + { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" }, + { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, + { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_UNI_IPV4, "UNI IPv4" }, + { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_13, "IPv4 P2MP LSP Tunnel" }, + { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_14, "IPv6 P2MP LSP Tunnel" }, + { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" }, + { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" }, + { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, + { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" }, + { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" }, + { 256*RSVP_OBJ_MESSAGE_ID+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_1, "Message id ack" }, + { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_2, "Message id nack" }, + { 256*RSVP_OBJ_MESSAGE_ID_LIST+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" }, + { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" }, + { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" }, + { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" }, + { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" }, + { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_4, "Generalized Label" }, + { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "Label" }, + { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_2, "Generalized Label" }, + { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_3, "Waveband Switching" }, + { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_1, "Label" }, + { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_2, "Generalized Label" }, + { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_3, "Waveband Switching" }, + { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_1, "Label" }, + { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_2, "Generalized Label" }, + { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_3, "Waveband Switching" }, + { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_1, "Label" }, + { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_2, "Generalized Label" }, + { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_3, "Waveband Switching" }, + { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" }, + { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" }, + { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" }, + { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" }, + { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" }, + { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" }, + { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" }, + { 256*RSVP_OBJ_CAPABILITY+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, + { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, /* old style*/ + { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_1, "1" }, /* new style */ + { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, + { 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_ADMIN_STATUS+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_CLASSTYPE+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_CLASSTYPE_OLD+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_LABEL_SET+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_GENERALIZED_UNI+RSVP_CTYPE_1, "1" }, + { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV4, "IPv4 sub-LSP" }, + { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV6, "IPv6 sub-LSP" }, + { 0, NULL} +}; + +/* + * XXX - this assumes a 16-byte digest, which is true for HMAC-MD5, but + * isn't necessarily the case for other hash algorithms. + * + * Unless I've missed something, there's nothing in RFC 2747 to indicate + * the hash algorithm being used, so it's presumably something set up + * out-of-band, or negotiated by other RSVP objects. + */ +struct rsvp_obj_integrity_t { + uint8_t flags; + uint8_t res; + uint8_t key_id[6]; + uint8_t sequence[8]; + uint8_t digest[16]; +}; + +static const struct tok rsvp_obj_integrity_flag_values[] = { + { 0x80, "Handshake" }, + { 0, NULL} +}; + +struct rsvp_obj_frr_t { + uint8_t setup_prio; + uint8_t hold_prio; + uint8_t hop_limit; + uint8_t flags; + uint8_t bandwidth[4]; + uint8_t include_any[4]; + uint8_t exclude_any[4]; + uint8_t include_all[4]; +}; + + +#define RSVP_OBJ_XRO_MASK_SUBOBJ(x) ((x)&0x7f) +#define RSVP_OBJ_XRO_MASK_LOOSE(x) ((x)&0x80) + +#define RSVP_OBJ_CAPABILITY_FLAGS_MASK 0x7U + +#define RSVP_OBJ_XRO_RES 0 +#define RSVP_OBJ_XRO_IPV4 1 +#define RSVP_OBJ_XRO_IPV6 2 +#define RSVP_OBJ_XRO_LABEL 3 +#define RSVP_OBJ_XRO_ASN 32 +#define RSVP_OBJ_XRO_MPLS 64 + +static const struct tok rsvp_obj_xro_values[] = { + { RSVP_OBJ_XRO_RES, "Reserved" }, + { RSVP_OBJ_XRO_IPV4, "IPv4 prefix" }, + { RSVP_OBJ_XRO_IPV6, "IPv6 prefix" }, + { RSVP_OBJ_XRO_LABEL, "Label" }, + { RSVP_OBJ_XRO_ASN, "Autonomous system number" }, + { RSVP_OBJ_XRO_MPLS, "MPLS label switched path termination" }, + { 0, NULL} +}; + +/* RFC4090 */ +static const struct tok rsvp_obj_rro_flag_values[] = { + { 0x01, "Local protection available" }, + { 0x02, "Local protection in use" }, + { 0x04, "Bandwidth protection" }, + { 0x08, "Node protection" }, + { 0, NULL} +}; + +/* RFC3209 */ +static const struct tok rsvp_obj_rro_label_flag_values[] = { + { 0x01, "Global" }, + { 0, NULL} +}; + +static const struct tok rsvp_resstyle_values[] = { + { 17, "Wildcard Filter" }, + { 10, "Fixed Filter" }, + { 18, "Shared Explicit" }, + { 0, NULL} +}; + +#define RSVP_OBJ_INTSERV_GUARANTEED_SERV 2 +#define RSVP_OBJ_INTSERV_CONTROLLED_LOAD 5 + +static const struct tok rsvp_intserv_service_type_values[] = { + { 1, "Default/Global Information" }, + { RSVP_OBJ_INTSERV_GUARANTEED_SERV, "Guaranteed Service" }, + { RSVP_OBJ_INTSERV_CONTROLLED_LOAD, "Controlled Load" }, + { 0, NULL} +}; + +static const struct tok rsvp_intserv_parameter_id_values[] = { + { 4, "IS hop cnt" }, + { 6, "Path b/w estimate" }, + { 8, "Minimum path latency" }, + { 10, "Composed MTU" }, + { 127, "Token Bucket TSpec" }, + { 130, "Guaranteed Service RSpec" }, + { 133, "End-to-end composed value for C" }, + { 134, "End-to-end composed value for D" }, + { 135, "Since-last-reshaping point composed C" }, + { 136, "Since-last-reshaping point composed D" }, + { 0, NULL} +}; + +static const struct tok rsvp_session_attribute_flag_values[] = { + { 0x01, "Local Protection" }, + { 0x02, "Label Recording" }, + { 0x04, "SE Style" }, + { 0x08, "Bandwidth protection" }, /* RFC4090 */ + { 0x10, "Node protection" }, /* RFC4090 */ + { 0, NULL} +}; + +static const struct tok rsvp_obj_prop_tlv_values[] = { + { 0x01, "Cos" }, + { 0x02, "Metric 1" }, + { 0x04, "Metric 2" }, + { 0x08, "CCC Status" }, + { 0x10, "Path Type" }, + { 0, NULL} +}; + +#define RSVP_OBJ_ERROR_SPEC_CODE_ROUTING 24 +#define RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY 25 +#define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE 28 +#define RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD 125 + +static const struct tok rsvp_obj_error_code_values[] = { + { RSVP_OBJ_ERROR_SPEC_CODE_ROUTING, "Routing Problem" }, + { RSVP_OBJ_ERROR_SPEC_CODE_NOTIFY, "Notify Error" }, + { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE, "Diffserv TE Error" }, + { RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD, "Diffserv TE Error (Old)" }, + { 0, NULL} +}; + +static const struct tok rsvp_obj_error_code_routing_values[] = { + { 1, "Bad EXPLICIT_ROUTE object" }, + { 2, "Bad strict node" }, + { 3, "Bad loose node" }, + { 4, "Bad initial subobject" }, + { 5, "No route available toward destination" }, + { 6, "Unacceptable label value" }, + { 7, "RRO indicated routing loops" }, + { 8, "non-RSVP-capable router in the path" }, + { 9, "MPLS label allocation failure" }, + { 10, "Unsupported L3PID" }, + { 0, NULL} +}; + +static const struct tok rsvp_obj_error_code_diffserv_te_values[] = { + { 1, "Unexpected CT object" }, + { 2, "Unsupported CT" }, + { 3, "Invalid CT value" }, + { 4, "CT/setup priority do not form a configured TE-Class" }, + { 5, "CT/holding priority do not form a configured TE-Class" }, + { 6, "CT/setup priority and CT/holding priority do not form a configured TE-Class" }, + { 7, "Inconsistency between signaled PSC and signaled CT" }, + { 8, "Inconsistency between signaled PHBs and signaled CT" }, + { 0, NULL} +}; + +/* rfc3473 / rfc 3471 */ +static const struct tok rsvp_obj_admin_status_flag_values[] = { + { 0x80000000, "Reflect" }, + { 0x00000004, "Testing" }, + { 0x00000002, "Admin-down" }, + { 0x00000001, "Delete-in-progress" }, + { 0, NULL} +}; + +/* label set actions - rfc3471 */ +#define LABEL_SET_INCLUSIVE_LIST 0 +#define LABEL_SET_EXCLUSIVE_LIST 1 +#define LABEL_SET_INCLUSIVE_RANGE 2 +#define LABEL_SET_EXCLUSIVE_RANGE 3 + +static const struct tok rsvp_obj_label_set_action_values[] = { + { LABEL_SET_INCLUSIVE_LIST, "Inclusive list" }, + { LABEL_SET_EXCLUSIVE_LIST, "Exclusive list" }, + { LABEL_SET_INCLUSIVE_RANGE, "Inclusive range" }, + { LABEL_SET_EXCLUSIVE_RANGE, "Exclusive range" }, + { 0, NULL} +}; + +/* OIF RSVP extensions UNI 1.0 Signaling, release 2 */ +#define RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS 1 +#define RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS 2 +#define RSVP_GEN_UNI_SUBOBJ_DIVERSITY 3 +#define RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL 4 +#define RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL 5 + +static const struct tok rsvp_obj_generalized_uni_values[] = { + { RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS, "Source TNA address" }, + { RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS, "Destination TNA address" }, + { RSVP_GEN_UNI_SUBOBJ_DIVERSITY, "Diversity" }, + { RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL, "Egress label" }, + { RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL, "Service level" }, + { 0, NULL} +}; + +/* + * this is a dissector for all the intserv defined + * specs as defined per rfc2215 + * it is called from various rsvp objects; + * returns the amount of bytes being processed + */ +static u_int +rsvp_intserv_print(netdissect_options *ndo, + const u_char *tptr, u_int obj_tlen) +{ + u_int parameter_id,parameter_length; + union { + float f; + uint32_t i; + } bw; + + if (obj_tlen < 4) + return 0; + parameter_id = GET_U_1(tptr); + parameter_length = GET_BE_U_2(tptr + 2)<<2; /* convert wordcount to bytecount */ + + ND_PRINT("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]", + tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id), + parameter_id, + parameter_length, + GET_U_1(tptr + 1)); + + if (obj_tlen < parameter_length+4) + return 0; + switch(parameter_id) { /* parameter_id */ + + case 4: + /* + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | 4 (e) | (f) | 1 (g) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | IS hop cnt (32-bit unsigned integer) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + if (parameter_length == 4) { + ND_PRINT("\n\t\tIS hop count: %u", GET_BE_U_4(tptr + 4)); + } + break; + + case 6: + /* + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | 6 (h) | (i) | 1 (j) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Path b/w estimate (32-bit IEEE floating point number) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + if (parameter_length == 4) { + bw.i = GET_BE_U_4(tptr + 4); + ND_PRINT("\n\t\tPath b/w estimate: %.10g Mbps", bw.f / 125000); + } + break; + + case 8: + /* + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | 8 (k) | (l) | 1 (m) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Minimum path latency (32-bit integer) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + if (parameter_length == 4) { + ND_PRINT("\n\t\tMinimum path latency: "); + if (GET_BE_U_4(tptr + 4) == 0xffffffff) + ND_PRINT("don't care"); + else + ND_PRINT("%u", GET_BE_U_4(tptr + 4)); + } + break; + + case 10: + + /* + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | 10 (n) | (o) | 1 (p) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Composed MTU (32-bit unsigned integer) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + if (parameter_length == 4) { + ND_PRINT("\n\t\tComposed MTU: %u bytes", GET_BE_U_4(tptr + 4)); + } + break; + case 127: + /* + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | 127 (e) | 0 (f) | 5 (g) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Token Bucket Rate [r] (32-bit IEEE floating point number) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Token Bucket Size [b] (32-bit IEEE floating point number) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Peak Data Rate [p] (32-bit IEEE floating point number) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Minimum Policed Unit [m] (32-bit integer) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Maximum Packet Size [M] (32-bit integer) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + + if (parameter_length == 20) { + ND_TCHECK_LEN(tptr + 4, 20); + bw.i = GET_BE_U_4(tptr + 4); + ND_PRINT("\n\t\tToken Bucket Rate: %.10g Mbps", bw.f / 125000); + bw.i = GET_BE_U_4(tptr + 8); + ND_PRINT("\n\t\tToken Bucket Size: %.10g bytes", bw.f); + bw.i = GET_BE_U_4(tptr + 12); + ND_PRINT("\n\t\tPeak Data Rate: %.10g Mbps", bw.f / 125000); + ND_PRINT("\n\t\tMinimum Policed Unit: %u bytes", + GET_BE_U_4(tptr + 16)); + ND_PRINT("\n\t\tMaximum Packet Size: %u bytes", + GET_BE_U_4(tptr + 20)); + } + break; + + case 130: + /* + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | 130 (h) | 0 (i) | 2 (j) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Rate [R] (32-bit IEEE floating point number) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + * | Slack Term [S] (32-bit integer) | + * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ + */ + + if (parameter_length == 8) { + ND_TCHECK_8(tptr + 4); + bw.i = GET_BE_U_4(tptr + 4); + ND_PRINT("\n\t\tRate: %.10g Mbps", bw.f / 125000); + ND_PRINT("\n\t\tSlack Term: %u", GET_BE_U_4(tptr + 8)); + } + break; + + case 133: + case 134: + case 135: + case 136: + if (parameter_length == 4) { + ND_PRINT("\n\t\tValue: %u", GET_BE_U_4(tptr + 4)); + } + break; + + default: + if (ndo->ndo_vflag <= 1) + print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length); + } + return (parameter_length+4); /* header length 4 bytes */ + +trunc: + nd_print_trunc(ndo); + return 0; +} + +/* + * Clear checksum prior to signature verification. + */ +static void +rsvp_clear_checksum(void *header) +{ + struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header; + + rsvp_com_header->checksum[0] = 0; + rsvp_com_header->checksum[1] = 0; +} + +static int +rsvp_obj_print(netdissect_options *ndo, + const u_char *pptr, u_int plen, const u_char *tptr, + const char *indent, u_int tlen, + const struct rsvp_common_header *rsvp_com_header) +{ + const struct rsvp_object_header *rsvp_obj_header; + const u_char *obj_tptr; + union { + const struct rsvp_obj_integrity_t *rsvp_obj_integrity; + const struct rsvp_obj_frr_t *rsvp_obj_frr; + } obj_ptr; + + u_short rsvp_obj_len,rsvp_obj_ctype,rsvp_obj_class_num; + u_int obj_tlen,intserv_serv_tlen; + int hexdump; + u_int processed,padbytes,error_code,error_value,i,sigcheck; + union { + float f; + uint32_t i; + } bw; + u_int namelen; + + u_int action, subchannel; + + while(tlen>=sizeof(struct rsvp_object_header)) { + /* did we capture enough for fully decoding the object header ? */ + ND_TCHECK_LEN(tptr, sizeof(struct rsvp_object_header)); + + rsvp_obj_header = (const struct rsvp_object_header *)tptr; + rsvp_obj_len=GET_BE_U_2(rsvp_obj_header->length); + rsvp_obj_ctype=GET_U_1(rsvp_obj_header->ctype); + + if(rsvp_obj_len % 4) { + ND_PRINT("%sERROR: object header size %u not a multiple of 4", indent, rsvp_obj_len); + return -1; + } + if(rsvp_obj_len < sizeof(struct rsvp_object_header)) { + ND_PRINT("%sERROR: object header too short %u < %zu", indent, rsvp_obj_len, + sizeof(struct rsvp_object_header)); + return -1; + } + + rsvp_obj_class_num = GET_U_1(rsvp_obj_header->class_num); + ND_PRINT("%s%s Object (%u) Flags: [%s", + indent, + tok2str(rsvp_obj_values, + "Unknown", + rsvp_obj_class_num), + rsvp_obj_class_num, + (rsvp_obj_class_num & 0x80) ? + ((rsvp_obj_class_num & 0x40) ? "ignore and forward" : + "ignore silently") : + "reject"); + + ND_PRINT(" if unknown], Class-Type: %s (%u), length: %u", + tok2str(rsvp_ctype_values, + "Unknown", + (rsvp_obj_class_num<<8)+rsvp_obj_ctype), + rsvp_obj_ctype, + rsvp_obj_len); + + if(tlen < rsvp_obj_len) { + ND_PRINT("%sERROR: object goes past end of objects TLV", indent); + return -1; + } + + obj_tptr=tptr+sizeof(struct rsvp_object_header); + obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header); + + /* did we capture enough for fully decoding the object ? */ + ND_TCHECK_LEN(tptr, rsvp_obj_len); + hexdump=FALSE; + + switch(rsvp_obj_class_num) { + case RSVP_OBJ_SESSION: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_IPV4: + if (obj_tlen < 8) + goto obj_tooshort; + ND_PRINT("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_U_1(obj_tptr + sizeof(nd_ipv4))); + ND_PRINT("%s Flags: [0x%02x], DestPort %u", + indent, + GET_U_1((obj_tptr + 5)), + GET_BE_U_2(obj_tptr + 6)); + obj_tlen-=8; + obj_tptr+=8; + break; + case RSVP_CTYPE_IPV6: + if (obj_tlen < 20) + goto obj_tooshort; + ND_PRINT("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x", + indent, + GET_IP6ADDR_STRING(obj_tptr), + GET_U_1(obj_tptr + sizeof(nd_ipv6))); + ND_PRINT("%s Flags: [0x%02x], DestPort %u", + indent, + GET_U_1((obj_tptr + sizeof(nd_ipv6) + 1)), + GET_BE_U_2(obj_tptr + sizeof(nd_ipv6) + 2)); + obj_tlen-=20; + obj_tptr+=20; + break; + + case RSVP_CTYPE_TUNNEL_IPV6: + if (obj_tlen < 36) + goto obj_tooshort; + ND_PRINT("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s", + indent, + GET_IP6ADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 18), + GET_IP6ADDR_STRING(obj_tptr + 20)); + obj_tlen-=36; + obj_tptr+=36; + break; + + case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */ + if (obj_tlen < 26) + goto obj_tooshort; + ND_PRINT("%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s", + indent, + GET_BE_U_4(obj_tptr), + GET_BE_U_2(obj_tptr + 6), + GET_IP6ADDR_STRING(obj_tptr + 8)); + obj_tlen-=26; + obj_tptr+=26; + break; + case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */ + if (obj_tlen < 12) + goto obj_tooshort; + ND_PRINT("%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 6), + GET_IPADDR_STRING(obj_tptr + 8)); + obj_tlen-=12; + obj_tptr+=12; + break; + case RSVP_CTYPE_TUNNEL_IPV4: + case RSVP_CTYPE_UNI_IPV4: + if (obj_tlen < 12) + goto obj_tooshort; + ND_PRINT("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 6), + GET_IPADDR_STRING(obj_tptr + 8)); + obj_tlen-=12; + obj_tptr+=12; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_CONFIRM: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_IPV4: + if (obj_tlen < sizeof(nd_ipv4)) + goto obj_tooshort; + ND_PRINT("%s IPv4 Receiver Address: %s", + indent, + GET_IPADDR_STRING(obj_tptr)); + obj_tlen-=sizeof(nd_ipv4); + obj_tptr+=sizeof(nd_ipv4); + break; + case RSVP_CTYPE_IPV6: + if (obj_tlen < sizeof(nd_ipv6)) + goto obj_tooshort; + ND_PRINT("%s IPv6 Receiver Address: %s", + indent, + GET_IP6ADDR_STRING(obj_tptr)); + obj_tlen-=sizeof(nd_ipv6); + obj_tptr+=sizeof(nd_ipv6); + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_NOTIFY_REQ: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_IPV4: + if (obj_tlen < sizeof(nd_ipv4)) + goto obj_tooshort; + ND_PRINT("%s IPv4 Notify Node Address: %s", + indent, + GET_IPADDR_STRING(obj_tptr)); + obj_tlen-=sizeof(nd_ipv4); + obj_tptr+=sizeof(nd_ipv4); + break; + case RSVP_CTYPE_IPV6: + if (obj_tlen < sizeof(nd_ipv6)) + goto obj_tooshort; + ND_PRINT("%s IPv6 Notify Node Address: %s", + indent, + GET_IP6ADDR_STRING(obj_tptr)); + obj_tlen-=sizeof(nd_ipv6); + obj_tptr+=sizeof(nd_ipv6); + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */ + case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */ + case RSVP_OBJ_RECOVERY_LABEL: /* fall through */ + case RSVP_OBJ_LABEL: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + while(obj_tlen >= 4 ) { + ND_PRINT("%s Label: %u", indent, GET_BE_U_4(obj_tptr)); + obj_tlen-=4; + obj_tptr+=4; + } + break; + case RSVP_CTYPE_2: + if (obj_tlen < 4) + goto obj_tooshort; + ND_PRINT("%s Generalized Label: %u", + indent, + GET_BE_U_4(obj_tptr)); + obj_tlen-=4; + obj_tptr+=4; + break; + case RSVP_CTYPE_3: + if (obj_tlen < 12) + goto obj_tooshort; + ND_PRINT("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u", + indent, + GET_BE_U_4(obj_tptr), + indent, + GET_BE_U_4(obj_tptr + 4), + GET_BE_U_4(obj_tptr + 8)); + obj_tlen-=12; + obj_tptr+=12; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_STYLE: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + if (obj_tlen < 4) + goto obj_tooshort; + ND_PRINT("%s Reservation Style: %s, Flags: [0x%02x]", + indent, + tok2str(rsvp_resstyle_values, + "Unknown", + GET_BE_U_3(obj_tptr + 1)), + GET_U_1(obj_tptr)); + obj_tlen-=4; + obj_tptr+=4; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_SENDER_TEMPLATE: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_IPV4: + if (obj_tlen < 8) + goto obj_tooshort; + ND_PRINT("%s Source Address: %s, Source Port: %u", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 6)); + obj_tlen-=8; + obj_tptr+=8; + break; + case RSVP_CTYPE_IPV6: + if (obj_tlen < 20) + goto obj_tooshort; + ND_PRINT("%s Source Address: %s, Source Port: %u", + indent, + GET_IP6ADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 18)); + obj_tlen-=20; + obj_tptr+=20; + break; + case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */ + if (obj_tlen < 40) + goto obj_tooshort; + ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x" + "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x", + indent, + GET_IP6ADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 18), + indent, + GET_IP6ADDR_STRING(obj_tptr+20), + GET_BE_U_2(obj_tptr + 38)); + obj_tlen-=40; + obj_tptr+=40; + break; + case RSVP_CTYPE_TUNNEL_IPV4: + if (obj_tlen < 8) + goto obj_tooshort; + ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 6)); + obj_tlen-=8; + obj_tptr+=8; + break; + case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */ + if (obj_tlen < 16) + goto obj_tooshort; + ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x" + "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 6), + indent, + GET_IPADDR_STRING(obj_tptr+8), + GET_BE_U_2(obj_tptr + 12)); + obj_tlen-=16; + obj_tptr+=16; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_LABEL_REQ: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + while(obj_tlen >= 4 ) { + ND_PRINT("%s L3 Protocol ID: %s", + indent, + tok2str(ethertype_values, + "Unknown Protocol (0x%04x)", + GET_BE_U_2(obj_tptr + 2))); + obj_tlen-=4; + obj_tptr+=4; + } + break; + case RSVP_CTYPE_2: + if (obj_tlen < 12) + goto obj_tooshort; + ND_PRINT("%s L3 Protocol ID: %s", + indent, + tok2str(ethertype_values, + "Unknown Protocol (0x%04x)", + GET_BE_U_2(obj_tptr + 2))); + ND_PRINT(",%s merge capability", + ((GET_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" ); + ND_PRINT("%s Minimum VPI/VCI: %u/%u", + indent, + (GET_BE_U_2(obj_tptr + 4))&0xfff, + (GET_BE_U_2(obj_tptr + 6)) & 0xfff); + ND_PRINT("%s Maximum VPI/VCI: %u/%u", + indent, + (GET_BE_U_2(obj_tptr + 8))&0xfff, + (GET_BE_U_2(obj_tptr + 10)) & 0xfff); + obj_tlen-=12; + obj_tptr+=12; + break; + case RSVP_CTYPE_3: + if (obj_tlen < 12) + goto obj_tooshort; + ND_PRINT("%s L3 Protocol ID: %s", + indent, + tok2str(ethertype_values, + "Unknown Protocol (0x%04x)", + GET_BE_U_2(obj_tptr + 2))); + ND_PRINT("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI", + indent, + (GET_BE_U_4(obj_tptr + 4))&0x7fffff, + (GET_BE_U_4(obj_tptr + 8))&0x7fffff, + (((GET_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "", + (((GET_BE_U_2(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : ""); + obj_tlen-=12; + obj_tptr+=12; + break; + case RSVP_CTYPE_4: + if (obj_tlen < 4) + goto obj_tooshort; + ND_PRINT("%s LSP Encoding Type: %s (%u)", + indent, + tok2str(gmpls_encoding_values, + "Unknown", + GET_U_1(obj_tptr)), + GET_U_1(obj_tptr)); + ND_PRINT("%s Switching Type: %s (%u), Payload ID: %s (0x%04x)", + indent, + tok2str(gmpls_switch_cap_values, + "Unknown", + GET_U_1((obj_tptr + 1))), + GET_U_1(obj_tptr + 1), + tok2str(gmpls_payload_values, + "Unknown", + GET_BE_U_2(obj_tptr + 2)), + GET_BE_U_2(obj_tptr + 2)); + obj_tlen-=4; + obj_tptr+=4; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_RRO: + case RSVP_OBJ_ERO: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_IPV4: + while(obj_tlen >= 4 ) { + u_char length; + + ND_TCHECK_4(obj_tptr); + length = GET_U_1(obj_tptr + 1); + ND_PRINT("%s Subobject Type: %s, length %u", + indent, + tok2str(rsvp_obj_xro_values, + "Unknown %u", + RSVP_OBJ_XRO_MASK_SUBOBJ(GET_U_1(obj_tptr))), + length); + if (obj_tlen < length) { + ND_PRINT("%s ERROR: ERO subobject length > object length", indent); + break; + } + + if (length == 0) { /* prevent infinite loops */ + ND_PRINT("%s ERROR: zero length ERO subtype", indent); + break; + } + + switch(RSVP_OBJ_XRO_MASK_SUBOBJ(GET_U_1(obj_tptr))) { + u_char prefix_length; + + case RSVP_OBJ_XRO_IPV4: + if (length != 8) { + ND_PRINT(" ERROR: length != 8"); + goto invalid; + } + ND_TCHECK_8(obj_tptr); + prefix_length = GET_U_1(obj_tptr + 6); + if (prefix_length != 32) { + ND_PRINT(" ERROR: Prefix length %u != 32", + prefix_length); + goto invalid; + } + ND_PRINT(", %s, %s/%u, Flags: [%s]", + RSVP_OBJ_XRO_MASK_LOOSE(GET_U_1(obj_tptr)) ? "Loose" : "Strict", + GET_IPADDR_STRING(obj_tptr+2), + GET_U_1((obj_tptr + 6)), + bittok2str(rsvp_obj_rro_flag_values, + "none", + GET_U_1((obj_tptr + 7)))); /* rfc3209 says that this field is rsvd. */ + break; + case RSVP_OBJ_XRO_LABEL: + if (length != 8) { + ND_PRINT(" ERROR: length != 8"); + goto invalid; + } + ND_TCHECK_8(obj_tptr); + ND_PRINT(", Flags: [%s] (%#x), Class-Type: %s (%u), %u", + bittok2str(rsvp_obj_rro_label_flag_values, + "none", + GET_U_1((obj_tptr + 2))), + GET_U_1(obj_tptr + 2), + tok2str(rsvp_ctype_values, + "Unknown", + GET_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)), + GET_U_1((obj_tptr + 3)), + GET_BE_U_4(obj_tptr + 4)); + } + obj_tlen-=length; + obj_tptr+=length; + } + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_HELLO: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + case RSVP_CTYPE_2: + if (obj_tlen < 8) + goto obj_tooshort; + ND_PRINT("%s Source Instance: 0x%08x, Destination Instance: 0x%08x", + indent, + GET_BE_U_4(obj_tptr), + GET_BE_U_4(obj_tptr + 4)); + obj_tlen-=8; + obj_tptr+=8; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_RESTART_CAPABILITY: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + if (obj_tlen < 8) + goto obj_tooshort; + ND_PRINT("%s Restart Time: %ums, Recovery Time: %ums", + indent, + GET_BE_U_4(obj_tptr), + GET_BE_U_4(obj_tptr + 4)); + obj_tlen-=8; + obj_tptr+=8; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_CAPABILITY: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + if (obj_tlen < 4) + goto obj_tooshort; + uint32_t unused_and_flags = GET_BE_U_4(obj_tptr); + if (unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK) + ND_PRINT("%s [reserved=0x%08x must be zero]", indent, + unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK); + ND_PRINT("%s Flags: [%s]", + indent, + bittok2str(rsvp_obj_capability_flag_values, + "none", + (unused_and_flags & RSVP_OBJ_CAPABILITY_FLAGS_MASK))); + obj_tlen-=4; + obj_tptr+=4; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_SESSION_ATTRIBUTE: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_TUNNEL_IPV4: + if (obj_tlen < 4) + goto obj_tooshort; + namelen = GET_U_1(obj_tptr + 3); + if (obj_tlen < 4+namelen) + goto obj_tooshort; + ND_PRINT("%s Session Name: ", indent); + for (i = 0; i < namelen; i++) + fn_print_char(ndo, GET_U_1(obj_tptr + 4 + i)); + ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)", + indent, + GET_U_1(obj_tptr), + GET_U_1(obj_tptr + 1), + bittok2str(rsvp_session_attribute_flag_values, + "none", + GET_U_1((obj_tptr + 2))), + GET_U_1(obj_tptr + 2)); + obj_tlen-=4+namelen; + obj_tptr+=4+namelen; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_GENERALIZED_UNI: + switch(rsvp_obj_ctype) { + u_int subobj_type,af,subobj_len,total_subobj_len; + + case RSVP_CTYPE_1: + + if (obj_tlen < 4) + goto obj_tooshort; + + /* read variable length subobjects */ + total_subobj_len = obj_tlen; + while(total_subobj_len > 0) { + /* If RFC 3476 Section 3.1 defined that a sub-object of the + * GENERALIZED_UNI RSVP object must have the Length field as + * a multiple of 4, instead of the check below it would be + * better to test total_subobj_len only once before the loop. + * So long as it does not define it and this while loop does + * not implement such a requirement, let's accept that within + * each iteration subobj_len may happen to be a multiple of 1 + * and test it and total_subobj_len respectively. + */ + if (total_subobj_len < 4) + goto invalid; + subobj_len = GET_BE_U_2(obj_tptr); + subobj_type = (GET_BE_U_2(obj_tptr + 2))>>8; + af = (GET_BE_U_2(obj_tptr + 2))&0x00FF; + + ND_PRINT("%s Subobject Type: %s (%u), AF: %s (%u), length: %u", + indent, + tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type), + subobj_type, + tok2str(af_values, "Unknown", af), af, + subobj_len); + + /* In addition to what is explained above, the same spec does not + * explicitly say that the same Length field includes the 4-octet + * sub-object header, but as long as this while loop implements it + * as it does include, let's keep the check below consistent with + * the rest of the code. + * + * XXX - RFC 3476 Section 3.1 says "The contents of these + * sub-objects are described in [8]", where [8] is + * UNI 1.0 Signaling Specification, The Optical + * Internetworking Forum. The URL they give for that + * document is + * + * http://www.oiforum.com/public/UNI_1.0_ia.html + * + * but that doesn't work; the new URL appears to be + * + * https://web.archive.org/web/20160401194747/http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf + * + * and *that* document, in section 12.5.2.3 + * "GENERALIZED_UNI Object (Class-Num=11bbbbbb (TBA))", + * says nothing about the length field in general, but + * some of the examples it gives in subsections have + * length field values that clearly includes the length + * of the sub-object header as well as the length of the + * value. + */ + if(subobj_len < 4 || subobj_len > total_subobj_len || + obj_tlen < subobj_len) + goto invalid; + + switch(subobj_type) { + case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS: + case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS: + + switch(af) { + case AFNUM_INET: + if (subobj_len < 8) + goto subobj_tooshort; + ND_PRINT("%s UNI IPv4 TNA address: %s", + indent, GET_IPADDR_STRING(obj_tptr + 4)); + break; + case AFNUM_INET6: + if (subobj_len < 20) + goto subobj_tooshort; + ND_PRINT("%s UNI IPv6 TNA address: %s", + indent, GET_IP6ADDR_STRING(obj_tptr + 4)); + break; + case AFNUM_NSAP: + if (subobj_len) { + /* unless we have a TLV parser lets just hexdump */ + hexdump=TRUE; + } + break; + } + break; + + case RSVP_GEN_UNI_SUBOBJ_DIVERSITY: + if (subobj_len > 4) { + /* unless we have a TLV parser lets just hexdump */ + hexdump=TRUE; + } + break; + + case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL: + if (subobj_len < 16) { + goto subobj_tooshort; + } + + ND_PRINT("%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u", + indent, + ((GET_BE_U_4(obj_tptr + 4))>>31), + ((GET_BE_U_4(obj_tptr + 4))&0xFF), + GET_BE_U_4(obj_tptr + 8), + GET_BE_U_4(obj_tptr + 12)); + break; + + case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL: + if (subobj_len < 8) { + goto subobj_tooshort; + } + + ND_PRINT("%s Service level: %u", + indent, (GET_BE_U_4(obj_tptr + 4)) >> 24); + break; + + default: + hexdump=TRUE; + break; + } + total_subobj_len-=subobj_len; + obj_tptr+=subobj_len; + obj_tlen+=subobj_len; + } + break; + + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_RSVP_HOP: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */ + case RSVP_CTYPE_IPV4: + if (obj_tlen < 8) + goto obj_tooshort; + ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_4(obj_tptr + 4)); + obj_tlen-=8; + obj_tptr+=8; + if (obj_tlen) + hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */ + break; + case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */ + case RSVP_CTYPE_IPV6: + if (obj_tlen < 20) + goto obj_tooshort; + ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x", + indent, + GET_IP6ADDR_STRING(obj_tptr), + GET_BE_U_4(obj_tptr + 16)); + obj_tlen-=20; + obj_tptr+=20; + hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */ + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_TIME_VALUES: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + if (obj_tlen < 4) + goto obj_tooshort; + ND_PRINT("%s Refresh Period: %ums", + indent, + GET_BE_U_4(obj_tptr)); + obj_tlen-=4; + obj_tptr+=4; + break; + default: + hexdump=TRUE; + } + break; + + /* those three objects do share the same semantics */ + case RSVP_OBJ_SENDER_TSPEC: + case RSVP_OBJ_ADSPEC: + case RSVP_OBJ_FLOWSPEC: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_2: + if (obj_tlen < 4) + goto obj_tooshort; + ND_PRINT("%s Msg-Version: %u, length: %u", + indent, + (GET_U_1(obj_tptr) & 0xf0) >> 4, + GET_BE_U_2(obj_tptr + 2) << 2); + obj_tptr+=4; /* get to the start of the service header */ + obj_tlen-=4; + + while (obj_tlen >= 4) { + intserv_serv_tlen=GET_BE_U_2(obj_tptr + 2)<<2; + ND_PRINT("%s Service Type: %s (%u), break bit %sset, Service length: %u", + indent, + tok2str(rsvp_intserv_service_type_values,"unknown",GET_U_1((obj_tptr))), + GET_U_1(obj_tptr), + (GET_U_1(obj_tptr + 1)&0x80) ? "" : "not ", + intserv_serv_tlen); + + obj_tptr+=4; /* get to the start of the parameter list */ + obj_tlen-=4; + + while (intserv_serv_tlen>=4) { + processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen); + if (processed == 0) + break; + obj_tlen-=processed; + intserv_serv_tlen-=processed; + obj_tptr+=processed; + } + } + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_FILTERSPEC: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_IPV4: + if (obj_tlen < 8) + goto obj_tooshort; + ND_PRINT("%s Source Address: %s, Source Port: %u", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 6)); + obj_tlen-=8; + obj_tptr+=8; + break; + case RSVP_CTYPE_IPV6: + if (obj_tlen < 20) + goto obj_tooshort; + ND_PRINT("%s Source Address: %s, Source Port: %u", + indent, + GET_IP6ADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 18)); + obj_tlen-=20; + obj_tptr+=20; + break; + case RSVP_CTYPE_3: + if (obj_tlen < 20) + goto obj_tooshort; + ND_PRINT("%s Source Address: %s, Flow Label: %u", + indent, + GET_IP6ADDR_STRING(obj_tptr), + GET_BE_U_3(obj_tptr + 17)); + obj_tlen-=20; + obj_tptr+=20; + break; + case RSVP_CTYPE_TUNNEL_IPV6: + if (obj_tlen < 20) + goto obj_tooshort; + ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 18)); + obj_tlen-=20; + obj_tptr+=20; + break; + case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */ + if (obj_tlen < 40) + goto obj_tooshort; + ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x" + "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x", + indent, + GET_IP6ADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 18), + indent, + GET_IP6ADDR_STRING(obj_tptr+20), + GET_BE_U_2(obj_tptr + 38)); + obj_tlen-=40; + obj_tptr+=40; + break; + case RSVP_CTYPE_TUNNEL_IPV4: + if (obj_tlen < 8) + goto obj_tooshort; + ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 6)); + obj_tlen-=8; + obj_tptr+=8; + break; + case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */ + if (obj_tlen < 16) + goto obj_tooshort; + ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x" + "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_BE_U_2(obj_tptr + 6), + indent, + GET_IPADDR_STRING(obj_tptr+8), + GET_BE_U_2(obj_tptr + 12)); + obj_tlen-=16; + obj_tptr+=16; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_FASTREROUTE: + /* the differences between c-type 1 and 7 are minor */ + obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr; + + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: /* new style */ + if (obj_tlen < sizeof(struct rsvp_obj_frr_t)) + goto obj_tooshort; + bw.i = GET_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth); + ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps", + indent, + obj_ptr.rsvp_obj_frr->setup_prio, + obj_ptr.rsvp_obj_frr->hold_prio, + obj_ptr.rsvp_obj_frr->hop_limit, + bw.f * 8 / 1000000); + ND_PRINT("%s Include-any: 0x%08x, Exclude-any: 0x%08x, Include-all: 0x%08x", + indent, + GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_any), + GET_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any), + GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_all)); + obj_tlen-=sizeof(struct rsvp_obj_frr_t); + obj_tptr+=sizeof(struct rsvp_obj_frr_t); + break; + + case RSVP_CTYPE_TUNNEL_IPV4: /* old style */ + if (obj_tlen < 16) + goto obj_tooshort; + bw.i = GET_BE_U_4(obj_ptr.rsvp_obj_frr->bandwidth); + ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps", + indent, + obj_ptr.rsvp_obj_frr->setup_prio, + obj_ptr.rsvp_obj_frr->hold_prio, + obj_ptr.rsvp_obj_frr->hop_limit, + bw.f * 8 / 1000000); + ND_PRINT("%s Include Colors: 0x%08x, Exclude Colors: 0x%08x", + indent, + GET_BE_U_4(obj_ptr.rsvp_obj_frr->include_any), + GET_BE_U_4(obj_ptr.rsvp_obj_frr->exclude_any)); + obj_tlen-=16; + obj_tptr+=16; + break; + + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_DETOUR: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_TUNNEL_IPV4: + while(obj_tlen >= 8) { + ND_PRINT("%s PLR-ID: %s, Avoid-Node-ID: %s", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_IPADDR_STRING(obj_tptr + 4)); + obj_tlen-=8; + obj_tptr+=8; + } + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_CLASSTYPE: + case RSVP_OBJ_CLASSTYPE_OLD: /* fall through */ + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + if (obj_tlen < 4) + goto obj_tooshort; + ND_PRINT("%s CT: %u", + indent, + GET_BE_U_4(obj_tptr) & 0x7); + obj_tlen-=4; + obj_tptr+=4; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_ERROR_SPEC: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */ + case RSVP_CTYPE_IPV4: + if (obj_tlen < 8) + goto obj_tooshort; + error_code=GET_U_1(obj_tptr + 5); + error_value=GET_BE_U_2(obj_tptr + 6); + ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)", + indent, + GET_IPADDR_STRING(obj_tptr), + GET_U_1(obj_tptr + 4), + indent, + tok2str(rsvp_obj_error_code_values,"unknown",error_code), + error_code); + switch (error_code) { + case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING: + ND_PRINT(", Error Value: %s (%u)", + tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value), + error_value); + break; + case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE: /* fall through */ + case RSVP_OBJ_ERROR_SPEC_CODE_DIFFSERV_TE_OLD: + ND_PRINT(", Error Value: %s (%u)", + tok2str(rsvp_obj_error_code_diffserv_te_values,"unknown",error_value), + error_value); + break; + default: + ND_PRINT(", Unknown Error Value (%u)", error_value); + break; + } + obj_tlen-=8; + obj_tptr+=8; + break; + case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */ + case RSVP_CTYPE_IPV6: + if (obj_tlen < 20) + goto obj_tooshort; + error_code=GET_U_1(obj_tptr + 17); + error_value=GET_BE_U_2(obj_tptr + 18); + ND_PRINT("%s Error Node Address: %s, Flags: [0x%02x]%s Error Code: %s (%u)", + indent, + GET_IP6ADDR_STRING(obj_tptr), + GET_U_1(obj_tptr + 16), + indent, + tok2str(rsvp_obj_error_code_values,"unknown",error_code), + error_code); + + switch (error_code) { + case RSVP_OBJ_ERROR_SPEC_CODE_ROUTING: + ND_PRINT(", Error Value: %s (%u)", + tok2str(rsvp_obj_error_code_routing_values,"unknown",error_value), + error_value); + break; + default: + break; + } + obj_tlen-=20; + obj_tptr+=20; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_PROPERTIES: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + if (obj_tlen < 4) + goto obj_tooshort; + padbytes = GET_BE_U_2(obj_tptr + 2); + ND_PRINT("%s TLV count: %u, padding bytes: %u", + indent, + GET_BE_U_2(obj_tptr), + padbytes); + obj_tlen-=4; + obj_tptr+=4; + /* loop through as long there is anything longer than the TLV header (2) */ + while(obj_tlen >= 2 + padbytes) { + ND_PRINT("%s %s TLV (0x%02x), length: %u", /* length includes header */ + indent, + tok2str(rsvp_obj_prop_tlv_values,"unknown",GET_U_1(obj_tptr)), + GET_U_1(obj_tptr), + GET_U_1(obj_tptr + 1)); + if (obj_tlen < GET_U_1(obj_tptr + 1)) + goto obj_tooshort; + if (GET_U_1(obj_tptr + 1) < 2) { + ND_PRINT("%sERROR: property TLV is too short", indent); + return -1; + } + print_unknown_data(ndo, obj_tptr + 2, "\n\t\t", + GET_U_1(obj_tptr + 1) - 2); + obj_tlen-=GET_U_1(obj_tptr + 1); + obj_tptr+=GET_U_1(obj_tptr + 1); + } + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_MESSAGE_ID: /* fall through */ + case RSVP_OBJ_MESSAGE_ID_ACK: /* fall through */ + case RSVP_OBJ_MESSAGE_ID_LIST: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + case RSVP_CTYPE_2: + if (obj_tlen < 4) + goto obj_tooshort; + ND_PRINT("%s Flags [0x%02x], epoch: %u", + indent, + GET_U_1(obj_tptr), + GET_BE_U_3(obj_tptr + 1)); + obj_tlen-=4; + obj_tptr+=4; + /* loop through as long there are no messages left */ + while(obj_tlen >= 4) { + ND_PRINT("%s Message-ID 0x%08x (%u)", + indent, + GET_BE_U_4(obj_tptr), + GET_BE_U_4(obj_tptr)); + obj_tlen-=4; + obj_tptr+=4; + } + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_INTEGRITY: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + if (obj_tlen < sizeof(struct rsvp_obj_integrity_t)) + goto obj_tooshort; + obj_ptr.rsvp_obj_integrity = (const struct rsvp_obj_integrity_t *)obj_tptr; + ND_PRINT("%s Key-ID 0x%04x%08x, Sequence 0x%08x%08x, Flags [%s]", + indent, + GET_BE_U_2(obj_ptr.rsvp_obj_integrity->key_id), + GET_BE_U_4(obj_ptr.rsvp_obj_integrity->key_id + 2), + GET_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence), + GET_BE_U_4(obj_ptr.rsvp_obj_integrity->sequence + 4), + bittok2str(rsvp_obj_integrity_flag_values, + "none", + obj_ptr.rsvp_obj_integrity->flags)); + ND_PRINT("%s MD5-sum 0x%08x%08x%08x%08x ", + indent, + GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest), + GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4), + GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8), + GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12)); + + sigcheck = signature_verify(ndo, pptr, plen, + obj_ptr.rsvp_obj_integrity->digest, + rsvp_clear_checksum, + rsvp_com_header); + ND_PRINT(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck)); + + obj_tlen+=sizeof(struct rsvp_obj_integrity_t); + obj_tptr+=sizeof(struct rsvp_obj_integrity_t); + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_ADMIN_STATUS: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + if (obj_tlen < 4) + goto obj_tooshort; + ND_PRINT("%s Flags [%s]", indent, + bittok2str(rsvp_obj_admin_status_flag_values, "none", + GET_BE_U_4(obj_tptr))); + obj_tlen-=4; + obj_tptr+=4; + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_LABEL_SET: + switch(rsvp_obj_ctype) { + case RSVP_CTYPE_1: + if (obj_tlen < 4) + goto obj_tooshort; + action = (GET_BE_U_2(obj_tptr)>>8); + + ND_PRINT("%s Action: %s (%u), Label type: %u", indent, + tok2str(rsvp_obj_label_set_action_values, "Unknown", action), + action, (GET_BE_U_4(obj_tptr) & 0x7F)); + + switch (action) { + case LABEL_SET_INCLUSIVE_RANGE: + case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */ + + /* only a couple of subchannels are expected */ + if (obj_tlen < 12) + goto obj_tooshort; + ND_PRINT("%s Start range: %u, End range: %u", indent, + GET_BE_U_4(obj_tptr + 4), + GET_BE_U_4(obj_tptr + 8)); + obj_tlen-=12; + obj_tptr+=12; + break; + + default: + obj_tlen-=4; + obj_tptr+=4; + subchannel = 1; + while(obj_tlen >= 4 ) { + ND_PRINT("%s Subchannel #%u: %u", indent, subchannel, + GET_BE_U_4(obj_tptr)); + obj_tptr+=4; + obj_tlen-=4; + subchannel++; + } + break; + } + break; + default: + hexdump=TRUE; + } + break; + + case RSVP_OBJ_S2L: + switch (rsvp_obj_ctype) { + case RSVP_CTYPE_IPV4: + if (obj_tlen < 4) + goto obj_tooshort; + ND_PRINT("%s Sub-LSP destination address: %s", + indent, GET_IPADDR_STRING(obj_tptr)); + + obj_tlen-=4; + obj_tptr+=4; + break; + case RSVP_CTYPE_IPV6: + if (obj_tlen < 16) + goto obj_tooshort; + ND_PRINT("%s Sub-LSP destination address: %s", + indent, GET_IP6ADDR_STRING(obj_tptr)); + + obj_tlen-=16; + obj_tptr+=16; + break; + default: + hexdump=TRUE; + } + break; + + /* + * FIXME those are the defined objects that lack a decoder + * you are welcome to contribute code ;-) + */ + + case RSVP_OBJ_SCOPE: + case RSVP_OBJ_POLICY_DATA: + case RSVP_OBJ_ACCEPT_LABEL_SET: + case RSVP_OBJ_PROTECTION: + default: + if (ndo->ndo_vflag <= 1) + print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */ + break; + } + /* do we also want to see a hex dump ? */ + if (ndo->ndo_vflag > 1 || hexdump == TRUE) + print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */ + rsvp_obj_len - sizeof(struct rsvp_object_header)); + + tptr+=rsvp_obj_len; + tlen-=rsvp_obj_len; + } + return 0; +subobj_tooshort: + ND_PRINT("%sERROR: sub-object is too short", indent); + return -1; +obj_tooshort: + ND_PRINT("%sERROR: object is too short", indent); + return -1; +invalid: + nd_print_invalid(ndo); + return -1; +trunc: + nd_print_trunc(ndo); + return -1; +} + +void +rsvp_print(netdissect_options *ndo, + const u_char *pptr, u_int len) +{ + const struct rsvp_common_header *rsvp_com_header; + uint8_t version_flags, msg_type; + const u_char *tptr; + u_short plen, tlen; + + ndo->ndo_protocol = "rsvp"; + tptr=pptr; + + rsvp_com_header = (const struct rsvp_common_header *)pptr; + ND_TCHECK_SIZE(rsvp_com_header); + version_flags = GET_U_1(rsvp_com_header->version_flags); + + /* + * Sanity checking of the header. + */ + if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) { + ND_PRINT("ERROR: RSVP version %u packet not supported", + RSVP_EXTRACT_VERSION(version_flags)); + return; + } + + msg_type = GET_U_1(rsvp_com_header->msg_type); + + /* in non-verbose mode just lets print the basic Message Type*/ + if (ndo->ndo_vflag < 1) { + ND_PRINT("RSVPv%u %s Message, length: %u", + RSVP_EXTRACT_VERSION(version_flags), + tok2str(rsvp_msg_type_values, "unknown (%u)",msg_type), + len); + return; + } + + /* ok they seem to want to know everything - lets fully decode it */ + + plen = tlen = GET_BE_U_2(rsvp_com_header->length); + + ND_PRINT("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x", + RSVP_EXTRACT_VERSION(version_flags), + tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type), + msg_type, + bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)), + tlen, + GET_U_1(rsvp_com_header->ttl), + GET_BE_U_2(rsvp_com_header->checksum)); + + if (tlen < sizeof(struct rsvp_common_header)) { + ND_PRINT("ERROR: common header too short %u < %zu", tlen, + sizeof(struct rsvp_common_header)); + return; + } + + tptr+=sizeof(struct rsvp_common_header); + tlen-=sizeof(struct rsvp_common_header); + + switch(msg_type) { + + case RSVP_MSGTYPE_BUNDLE: + /* + * Process each submessage in the bundle message. + * Bundle messages may not contain bundle submessages, so we don't + * need to handle bundle submessages specially. + */ + while(tlen > 0) { + const u_char *subpptr=tptr, *subtptr; + u_short subplen, subtlen; + + subtptr=subpptr; + + rsvp_com_header = (const struct rsvp_common_header *)subpptr; + ND_TCHECK_SIZE(rsvp_com_header); + version_flags = GET_U_1(rsvp_com_header->version_flags); + + /* + * Sanity checking of the header. + */ + if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) { + ND_PRINT("ERROR: RSVP version %u packet not supported", + RSVP_EXTRACT_VERSION(version_flags)); + return; + } + + subplen = subtlen = GET_BE_U_2(rsvp_com_header->length); + + msg_type = GET_U_1(rsvp_com_header->msg_type); + ND_PRINT("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x", + RSVP_EXTRACT_VERSION(version_flags), + tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type), + msg_type, + bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)), + subtlen, + GET_U_1(rsvp_com_header->ttl), + GET_BE_U_2(rsvp_com_header->checksum)); + + if (subtlen < sizeof(struct rsvp_common_header)) { + ND_PRINT("ERROR: common header too short %u < %zu", subtlen, + sizeof(struct rsvp_common_header)); + return; + } + + if (tlen < subtlen) { + ND_PRINT("ERROR: common header too large %u > %u", subtlen, + tlen); + return; + } + + subtptr+=sizeof(struct rsvp_common_header); + subtlen-=sizeof(struct rsvp_common_header); + + /* + * Print all objects in the submessage. + */ + if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1) + return; + + tptr+=subtlen+sizeof(struct rsvp_common_header); + tlen-=subtlen+sizeof(struct rsvp_common_header); + } + + break; + + case RSVP_MSGTYPE_PATH: + case RSVP_MSGTYPE_RESV: + case RSVP_MSGTYPE_PATHERR: + case RSVP_MSGTYPE_RESVERR: + case RSVP_MSGTYPE_PATHTEAR: + case RSVP_MSGTYPE_RESVTEAR: + case RSVP_MSGTYPE_RESVCONF: + case RSVP_MSGTYPE_HELLO_OLD: + case RSVP_MSGTYPE_HELLO: + case RSVP_MSGTYPE_ACK: + case RSVP_MSGTYPE_SREFRESH: + /* + * Print all objects in the message. + */ + if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1) + return; + break; + + default: + print_unknown_data(ndo, tptr, "\n\t ", tlen); + break; + } + + return; +trunc: + nd_print_trunc(ndo); +} |