/* * 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 */ #include #include "netdissect-stdinc.h" #define ND_LONGJMP_FROM_TCHECK #include "netdissect.h" #include "extract.h" #include "addrtoname.h" #include "ethertype.h" #include "gmpls.h" #include "af.h" #include "signature.h" /* * RFC 2205 common header * * 0 1 2 3 * +-------------+-------------+-------------+-------------+ * | Vers | Flags| Msg Type | RSVP Checksum | * +-------------+-------------+-------------+-------------+ * | Send_TTL | (Reserved) | RSVP Length | * +-------------+-------------+-------------+-------------+ * */ struct rsvp_common_header { nd_uint8_t version_flags; nd_uint8_t msg_type; nd_uint16_t checksum; nd_uint8_t ttl; nd_byte reserved[1]; nd_uint16_t length; }; /* * RFC2205 object header * * * 0 1 2 3 * +-------------+-------------+-------------+-------------+ * | Length (bytes) | Class-Num | C-Type | * +-------------+-------------+-------------+-------------+ * | | * // (Object contents) // * | | * +-------------+-------------+-------------+-------------+ */ struct rsvp_object_header { nd_uint16_t length; nd_uint8_t class_num; nd_uint8_t ctype; }; #define RSVP_VERSION 1 #define RSVP_EXTRACT_VERSION(x) (((x)&0xf0)>>4) #define RSVP_EXTRACT_FLAGS(x) ((x)&0x0f) #define RSVP_MSGTYPE_PATH 1 #define RSVP_MSGTYPE_RESV 2 #define RSVP_MSGTYPE_PATHERR 3 #define RSVP_MSGTYPE_RESVERR 4 #define RSVP_MSGTYPE_PATHTEAR 5 #define RSVP_MSGTYPE_RESVTEAR 6 #define RSVP_MSGTYPE_RESVCONF 7 #define RSVP_MSGTYPE_BUNDLE 12 #define RSVP_MSGTYPE_ACK 13 #define RSVP_MSGTYPE_HELLO_OLD 14 /* ancient Hellos */ #define RSVP_MSGTYPE_SREFRESH 15 #define RSVP_MSGTYPE_HELLO 20 static const struct tok rsvp_msg_type_values[] = { { RSVP_MSGTYPE_PATH, "Path" }, { RSVP_MSGTYPE_RESV, "Resv" }, { RSVP_MSGTYPE_PATHERR, "PathErr" }, { RSVP_MSGTYPE_RESVERR, "ResvErr" }, { RSVP_MSGTYPE_PATHTEAR, "PathTear" }, { RSVP_MSGTYPE_RESVTEAR, "ResvTear" }, { RSVP_MSGTYPE_RESVCONF, "ResvConf" }, { RSVP_MSGTYPE_BUNDLE, "Bundle" }, { RSVP_MSGTYPE_ACK, "Acknowledgement" }, { RSVP_MSGTYPE_HELLO_OLD, "Hello (Old)" }, { RSVP_MSGTYPE_SREFRESH, "Refresh" }, { RSVP_MSGTYPE_HELLO, "Hello" }, { 0, NULL} }; static const struct tok rsvp_header_flag_values[] = { { 0x01, "Refresh reduction capable" }, /* rfc2961 */ { 0, NULL} }; static const struct tok rsvp_obj_capability_flag_values[] = { { 0x0004, "RecoveryPath Transmit Enabled" }, { 0x0002, "RecoveryPath Desired" }, { 0x0001, "RecoveryPath Srefresh Capable" }, { 0, NULL} }; #define RSVP_OBJ_SESSION 1 /* rfc2205 */ #define RSVP_OBJ_RSVP_HOP 3 /* rfc2205, rfc3473 */ #define RSVP_OBJ_INTEGRITY 4 /* rfc2747 */ #define RSVP_OBJ_TIME_VALUES 5 /* rfc2205 */ #define RSVP_OBJ_ERROR_SPEC 6 #define RSVP_OBJ_SCOPE 7 #define RSVP_OBJ_STYLE 8 /* rfc2205 */ #define RSVP_OBJ_FLOWSPEC 9 /* rfc2215 */ #define RSVP_OBJ_FILTERSPEC 10 /* rfc2215 */ #define RSVP_OBJ_SENDER_TEMPLATE 11 #define RSVP_OBJ_SENDER_TSPEC 12 /* rfc2215 */ #define RSVP_OBJ_ADSPEC 13 /* rfc2215 */ #define RSVP_OBJ_POLICY_DATA 14 #define RSVP_OBJ_CONFIRM 15 /* rfc2205 */ #define RSVP_OBJ_LABEL 16 /* rfc3209 */ #define RSVP_OBJ_LABEL_REQ 19 /* rfc3209 */ #define RSVP_OBJ_ERO 20 /* rfc3209 */ #define RSVP_OBJ_RRO 21 /* rfc3209 */ #define RSVP_OBJ_HELLO 22 /* rfc3209 */ #define RSVP_OBJ_MESSAGE_ID 23 /* rfc2961 */ #define RSVP_OBJ_MESSAGE_ID_ACK 24 /* rfc2961 */ #define RSVP_OBJ_MESSAGE_ID_LIST 25 /* rfc2961 */ #define RSVP_OBJ_RECOVERY_LABEL 34 /* rfc3473 */ #define RSVP_OBJ_UPSTREAM_LABEL 35 /* rfc3473 */ #define RSVP_OBJ_LABEL_SET 36 /* rfc3473 */ #define RSVP_OBJ_PROTECTION 37 /* rfc3473 */ #define RSVP_OBJ_S2L 50 /* rfc4875 */ #define RSVP_OBJ_DETOUR 63 /* rfc4090 */ #define RSVP_OBJ_CLASSTYPE 66 /* rfc4124 */ #define RSVP_OBJ_CLASSTYPE_OLD 125 /* draft-ietf-tewg-diff-te-proto-07 */ #define RSVP_OBJ_SUGGESTED_LABEL 129 /* rfc3473 */ #define RSVP_OBJ_ACCEPT_LABEL_SET 130 /* rfc3473 */ #define RSVP_OBJ_RESTART_CAPABILITY 131 /* rfc3473 */ #define RSVP_OBJ_CAPABILITY 134 /* rfc5063 */ #define RSVP_OBJ_NOTIFY_REQ 195 /* rfc3473 */ #define RSVP_OBJ_ADMIN_STATUS 196 /* rfc3473 */ #define RSVP_OBJ_PROPERTIES 204 /* juniper proprietary */ #define RSVP_OBJ_FASTREROUTE 205 /* rfc4090 */ #define RSVP_OBJ_SESSION_ATTRIBUTE 207 /* rfc3209 */ #define RSVP_OBJ_GENERALIZED_UNI 229 /* OIF RSVP extensions UNI 1.0 Signaling, Rel. 2 */ #define RSVP_OBJ_CALL_ID 230 /* rfc3474 */ #define RSVP_OBJ_CALL_OPS 236 /* rfc3474 */ static const struct tok rsvp_obj_values[] = { { RSVP_OBJ_SESSION, "Session" }, { RSVP_OBJ_RSVP_HOP, "RSVP Hop" }, { RSVP_OBJ_INTEGRITY, "Integrity" }, { RSVP_OBJ_TIME_VALUES, "Time Values" }, { RSVP_OBJ_ERROR_SPEC, "Error Spec" }, { RSVP_OBJ_SCOPE, "Scope" }, { RSVP_OBJ_STYLE, "Style" }, { RSVP_OBJ_FLOWSPEC, "Flowspec" }, { RSVP_OBJ_FILTERSPEC, "FilterSpec" }, { RSVP_OBJ_SENDER_TEMPLATE, "Sender Template" }, { RSVP_OBJ_SENDER_TSPEC, "Sender TSpec" }, { RSVP_OBJ_ADSPEC, "Adspec" }, { RSVP_OBJ_POLICY_DATA, "Policy Data" }, { RSVP_OBJ_CONFIRM, "Confirm" }, { RSVP_OBJ_LABEL, "Label" }, { RSVP_OBJ_LABEL_REQ, "Label Request" }, { RSVP_OBJ_ERO, "ERO" }, { RSVP_OBJ_RRO, "RRO" }, { RSVP_OBJ_HELLO, "Hello" }, { RSVP_OBJ_MESSAGE_ID, "Message ID" }, { RSVP_OBJ_MESSAGE_ID_ACK, "Message ID Ack" }, { RSVP_OBJ_MESSAGE_ID_LIST, "Message ID List" }, { RSVP_OBJ_RECOVERY_LABEL, "Recovery Label" }, { RSVP_OBJ_UPSTREAM_LABEL, "Upstream Label" }, { RSVP_OBJ_LABEL_SET, "Label Set" }, { RSVP_OBJ_ACCEPT_LABEL_SET, "Acceptable Label Set" }, { RSVP_OBJ_DETOUR, "Detour" }, { RSVP_OBJ_CLASSTYPE, "Class Type" }, { RSVP_OBJ_CLASSTYPE_OLD, "Class Type (old)" }, { RSVP_OBJ_SUGGESTED_LABEL, "Suggested Label" }, { RSVP_OBJ_PROPERTIES, "Properties" }, { RSVP_OBJ_FASTREROUTE, "Fast Re-Route" }, { RSVP_OBJ_SESSION_ATTRIBUTE, "Session Attribute" }, { RSVP_OBJ_GENERALIZED_UNI, "Generalized UNI" }, { RSVP_OBJ_CALL_ID, "Call-ID" }, { RSVP_OBJ_CALL_OPS, "Call Capability" }, { RSVP_OBJ_RESTART_CAPABILITY, "Restart Capability" }, { RSVP_OBJ_CAPABILITY, "Capability" }, { RSVP_OBJ_NOTIFY_REQ, "Notify Request" }, { RSVP_OBJ_PROTECTION, "Protection" }, { RSVP_OBJ_ADMIN_STATUS, "Administrative Status" }, { RSVP_OBJ_S2L, "Sub-LSP to LSP" }, { 0, NULL} }; #define RSVP_CTYPE_IPV4 1 #define RSVP_CTYPE_IPV6 2 #define RSVP_CTYPE_TUNNEL_IPV4 7 #define RSVP_CTYPE_TUNNEL_IPV6 8 #define RSVP_CTYPE_UNI_IPV4 11 /* OIF RSVP extensions UNI 1.0 Signaling Rel. 2 */ #define RSVP_CTYPE_1 1 #define RSVP_CTYPE_2 2 #define RSVP_CTYPE_3 3 #define RSVP_CTYPE_4 4 #define RSVP_CTYPE_12 12 #define RSVP_CTYPE_13 13 #define RSVP_CTYPE_14 14 /* * the ctypes are not globally unique so for * translating it to strings we build a table based * on objects offsetted by the ctype */ static const struct tok rsvp_ctype_values[] = { { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV4, "IPv4" }, { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_IPV6, "IPv6" }, { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" }, { 256*RSVP_OBJ_RSVP_HOP+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" }, { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV4, "IPv4" }, { 256*RSVP_OBJ_NOTIFY_REQ+RSVP_CTYPE_IPV6, "IPv6" }, { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV4, "IPv4" }, { 256*RSVP_OBJ_CONFIRM+RSVP_CTYPE_IPV6, "IPv6" }, { 256*RSVP_OBJ_TIME_VALUES+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_1, "obsolete" }, { 256*RSVP_OBJ_FLOWSPEC+RSVP_CTYPE_2, "IntServ" }, { 256*RSVP_OBJ_SENDER_TSPEC+RSVP_CTYPE_2, "IntServ" }, { 256*RSVP_OBJ_ADSPEC+RSVP_CTYPE_2, "IntServ" }, { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV4, "IPv4" }, { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_IPV6, "IPv6" }, { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_3, "IPv6 Flow-label" }, { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" }, { 256*RSVP_OBJ_FILTERSPEC+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" }, { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV4, "IPv4" }, { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_IPV6, "IPv6" }, { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_UNI_IPV4, "UNI IPv4" }, { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_13, "IPv4 P2MP LSP Tunnel" }, { 256*RSVP_OBJ_SESSION+RSVP_CTYPE_14, "IPv6 P2MP LSP Tunnel" }, { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV4, "IPv4" }, { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_IPV6, "IPv6" }, { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_12, "IPv4 P2MP LSP Tunnel" }, { 256*RSVP_OBJ_SENDER_TEMPLATE+RSVP_CTYPE_13, "IPv6 P2MP LSP Tunnel" }, { 256*RSVP_OBJ_MESSAGE_ID+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_1, "Message id ack" }, { 256*RSVP_OBJ_MESSAGE_ID_ACK+RSVP_CTYPE_2, "Message id nack" }, { 256*RSVP_OBJ_MESSAGE_ID_LIST+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_STYLE+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_1, "Hello Request" }, { 256*RSVP_OBJ_HELLO+RSVP_CTYPE_2, "Hello Ack" }, { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_1, "without label range" }, { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_2, "with ATM label range" }, { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_3, "with FR label range" }, { 256*RSVP_OBJ_LABEL_REQ+RSVP_CTYPE_4, "Generalized Label" }, { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_1, "Label" }, { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_2, "Generalized Label" }, { 256*RSVP_OBJ_LABEL+RSVP_CTYPE_3, "Waveband Switching" }, { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_1, "Label" }, { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_2, "Generalized Label" }, { 256*RSVP_OBJ_SUGGESTED_LABEL+RSVP_CTYPE_3, "Waveband Switching" }, { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_1, "Label" }, { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_2, "Generalized Label" }, { 256*RSVP_OBJ_UPSTREAM_LABEL+RSVP_CTYPE_3, "Waveband Switching" }, { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_1, "Label" }, { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_2, "Generalized Label" }, { 256*RSVP_OBJ_RECOVERY_LABEL+RSVP_CTYPE_3, "Waveband Switching" }, { 256*RSVP_OBJ_ERO+RSVP_CTYPE_IPV4, "IPv4" }, { 256*RSVP_OBJ_RRO+RSVP_CTYPE_IPV4, "IPv4" }, { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV4, "IPv4" }, { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_IPV6, "IPv6" }, { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_3, "IPv4 plus opt. TLVs" }, { 256*RSVP_OBJ_ERROR_SPEC+RSVP_CTYPE_4, "IPv6 plus opt. TLVs" }, { 256*RSVP_OBJ_RESTART_CAPABILITY+RSVP_CTYPE_1, "IPv4" }, { 256*RSVP_OBJ_CAPABILITY+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_SESSION_ATTRIBUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, /* old style*/ { 256*RSVP_OBJ_FASTREROUTE+RSVP_CTYPE_1, "1" }, /* new style */ { 256*RSVP_OBJ_DETOUR+RSVP_CTYPE_TUNNEL_IPV4, "Tunnel IPv4" }, { 256*RSVP_OBJ_PROPERTIES+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_ADMIN_STATUS+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_CLASSTYPE+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_CLASSTYPE_OLD+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_LABEL_SET+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_GENERALIZED_UNI+RSVP_CTYPE_1, "1" }, { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV4, "IPv4 sub-LSP" }, { 256*RSVP_OBJ_S2L+RSVP_CTYPE_IPV6, "IPv6 sub-LSP" }, { 0, NULL} }; /* * XXX - this assumes a 16-byte digest, which is true for HMAC-MD5, but * isn't necessarily the case for other hash algorithms. * * Unless I've missed something, there's nothing in RFC 2747 to indicate * the hash algorithm being used, so it's presumably something set up * out-of-band, or negotiated by other RSVP objects. */ struct rsvp_obj_integrity_t { nd_uint8_t flags; nd_uint8_t res; nd_byte key_id[6]; nd_byte sequence[8]; nd_byte digest[16]; }; static const struct tok rsvp_obj_integrity_flag_values[] = { { 0x80, "Handshake" }, { 0, NULL} }; struct rsvp_obj_frr_t { nd_uint8_t setup_prio; nd_uint8_t hold_prio; nd_uint8_t hop_limit; nd_uint8_t flags; nd_float bandwidth; nd_uint32_t include_any; nd_uint32_t exclude_any; nd_uint32_t include_all; }; #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; ND_ICHECK_U(obj_tlen, <, 4); parameter_id = GET_U_1(tptr); parameter_length = GET_BE_U_2(tptr + 2)<<2; /* convert wordcount to bytecount */ ND_PRINT("\n\t Parameter ID: %s (%u), length: %u, Flags: [0x%02x]", tok2str(rsvp_intserv_parameter_id_values,"unknown",parameter_id), parameter_id, parameter_length, GET_U_1(tptr + 1)); ND_ICHECK_U(obj_tlen, <, parameter_length + 4); switch(parameter_id) { /* parameter_id */ case 4: /* * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | 4 (e) | (f) | 1 (g) | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | IS hop cnt (32-bit unsigned integer) | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ if (parameter_length == 4) { ND_PRINT("\n\t\tIS hop count: %u", GET_BE_U_4(tptr + 4)); } break; case 6: /* * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | 6 (h) | (i) | 1 (j) | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ * | Path b/w estimate (32-bit IEEE floating point number) | * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ */ if (parameter_length == 4) { ND_PRINT("\n\t\tPath b/w estimate: %.10g Mbps", GET_BE_F_4(tptr + 4) / 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_PRINT("\n\t\tToken Bucket Rate: %.10g Mbps", GET_BE_F_4(tptr + 4) / 125000); ND_PRINT("\n\t\tToken Bucket Size: %.10g bytes", GET_BE_F_4(tptr + 8)); ND_PRINT("\n\t\tPeak Data Rate: %.10g Mbps", GET_BE_F_4(tptr + 12) / 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_PRINT("\n\t\tRate: %.10g Mbps", GET_BE_F_4(tptr + 4) / 125000); ND_PRINT("\n\t\tSlack Term: %u", GET_BE_U_4(tptr + 8)); } break; case 133: case 134: case 135: case 136: if (parameter_length == 4) { ND_PRINT("\n\t\tValue: %u", GET_BE_U_4(tptr + 4)); } break; default: if (ndo->ndo_vflag <= 1) print_unknown_data(ndo, tptr + 4, "\n\t\t", parameter_length); } return (parameter_length+4); /* header length 4 bytes */ invalid: nd_print_invalid(ndo); return 0; } /* * Clear checksum prior to signature verification. */ static void rsvp_clear_checksum(void *header) { struct rsvp_common_header *rsvp_com_header = (struct rsvp_common_header *) header; rsvp_com_header->checksum[0] = 0; rsvp_com_header->checksum[1] = 0; } static int rsvp_obj_print(netdissect_options *ndo, const u_char *pptr, u_int plen, const u_char *tptr, const char *indent, u_int tlen, const struct rsvp_common_header *rsvp_com_header) { const struct rsvp_object_header *rsvp_obj_header; const u_char *obj_tptr; union { const struct rsvp_obj_integrity_t *rsvp_obj_integrity; const struct rsvp_obj_frr_t *rsvp_obj_frr; } obj_ptr; u_short rsvp_obj_len,rsvp_obj_ctype,rsvp_obj_class_num; u_int obj_tlen,intserv_serv_tlen; int hexdump; u_int processed,padbytes,error_code,error_value,i,sigcheck; u_int namelen; u_int action, subchannel; while(tlen>=sizeof(struct rsvp_object_header)) { rsvp_obj_header = (const struct rsvp_object_header *)tptr; rsvp_obj_len=GET_BE_U_2(rsvp_obj_header->length); rsvp_obj_ctype=GET_U_1(rsvp_obj_header->ctype); if(rsvp_obj_len % 4) { ND_PRINT("%sERROR: object header size %u not a multiple of 4", indent, rsvp_obj_len); return -1; } if(rsvp_obj_len < sizeof(struct rsvp_object_header)) { ND_PRINT("%sERROR: object header too short %u < %zu", indent, rsvp_obj_len, sizeof(struct rsvp_object_header)); return -1; } rsvp_obj_class_num = GET_U_1(rsvp_obj_header->class_num); ND_PRINT("%s%s Object (%u) Flags: [%s", indent, tok2str(rsvp_obj_values, "Unknown", rsvp_obj_class_num), rsvp_obj_class_num, (rsvp_obj_class_num & 0x80) ? ((rsvp_obj_class_num & 0x40) ? "ignore and forward" : "ignore silently") : "reject"); ND_PRINT(" if unknown], Class-Type: %s (%u), length: %u", tok2str(rsvp_ctype_values, "Unknown", (rsvp_obj_class_num<<8)+rsvp_obj_ctype), rsvp_obj_ctype, rsvp_obj_len); if(tlen < rsvp_obj_len) { ND_PRINT("%sERROR: object goes past end of objects TLV", indent); return -1; } obj_tptr=tptr+sizeof(struct rsvp_object_header); obj_tlen=rsvp_obj_len-sizeof(struct rsvp_object_header); /* did we capture enough for fully decoding the object ? */ ND_TCHECK_LEN(tptr, rsvp_obj_len); hexdump=FALSE; switch(rsvp_obj_class_num) { case RSVP_OBJ_SESSION: switch(rsvp_obj_ctype) { case RSVP_CTYPE_IPV4: if (obj_tlen < 8) goto obj_tooshort; ND_PRINT("%s IPv4 DestAddress: %s, Protocol ID: 0x%02x", indent, GET_IPADDR_STRING(obj_tptr), GET_U_1(obj_tptr + sizeof(nd_ipv4))); ND_PRINT("%s Flags: [0x%02x], DestPort %u", indent, GET_U_1((obj_tptr + 5)), GET_BE_U_2(obj_tptr + 6)); obj_tlen-=8; obj_tptr+=8; break; case RSVP_CTYPE_IPV6: if (obj_tlen < 20) goto obj_tooshort; ND_PRINT("%s IPv6 DestAddress: %s, Protocol ID: 0x%02x", indent, GET_IP6ADDR_STRING(obj_tptr), GET_U_1(obj_tptr + sizeof(nd_ipv6))); ND_PRINT("%s Flags: [0x%02x], DestPort %u", indent, GET_U_1((obj_tptr + sizeof(nd_ipv6) + 1)), GET_BE_U_2(obj_tptr + sizeof(nd_ipv6) + 2)); obj_tlen-=20; obj_tptr+=20; break; case RSVP_CTYPE_TUNNEL_IPV6: if (obj_tlen < 36) goto obj_tooshort; ND_PRINT("%s IPv6 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s", indent, GET_IP6ADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 18), GET_IP6ADDR_STRING(obj_tptr + 20)); obj_tlen-=36; obj_tptr+=36; break; case RSVP_CTYPE_14: /* IPv6 p2mp LSP Tunnel */ if (obj_tlen < 26) goto obj_tooshort; ND_PRINT("%s IPv6 P2MP LSP ID: 0x%08x, Tunnel ID: 0x%04x, Extended Tunnel ID: %s", indent, GET_BE_U_4(obj_tptr), GET_BE_U_2(obj_tptr + 6), GET_IP6ADDR_STRING(obj_tptr + 8)); obj_tlen-=26; obj_tptr+=26; break; case RSVP_CTYPE_13: /* IPv4 p2mp LSP Tunnel */ if (obj_tlen < 12) goto obj_tooshort; ND_PRINT("%s IPv4 P2MP LSP ID: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s", indent, GET_IPADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 6), GET_IPADDR_STRING(obj_tptr + 8)); obj_tlen-=12; obj_tptr+=12; break; case RSVP_CTYPE_TUNNEL_IPV4: case RSVP_CTYPE_UNI_IPV4: if (obj_tlen < 12) goto obj_tooshort; ND_PRINT("%s IPv4 Tunnel EndPoint: %s, Tunnel ID: 0x%04x, Extended Tunnel ID: %s", indent, GET_IPADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 6), GET_IPADDR_STRING(obj_tptr + 8)); obj_tlen-=12; obj_tptr+=12; break; default: hexdump=TRUE; } break; case RSVP_OBJ_CONFIRM: switch(rsvp_obj_ctype) { case RSVP_CTYPE_IPV4: if (obj_tlen < sizeof(nd_ipv4)) goto obj_tooshort; ND_PRINT("%s IPv4 Receiver Address: %s", indent, GET_IPADDR_STRING(obj_tptr)); obj_tlen-=sizeof(nd_ipv4); obj_tptr+=sizeof(nd_ipv4); break; case RSVP_CTYPE_IPV6: if (obj_tlen < sizeof(nd_ipv6)) goto obj_tooshort; ND_PRINT("%s IPv6 Receiver Address: %s", indent, GET_IP6ADDR_STRING(obj_tptr)); obj_tlen-=sizeof(nd_ipv6); obj_tptr+=sizeof(nd_ipv6); break; default: hexdump=TRUE; } break; case RSVP_OBJ_NOTIFY_REQ: switch(rsvp_obj_ctype) { case RSVP_CTYPE_IPV4: if (obj_tlen < sizeof(nd_ipv4)) goto obj_tooshort; ND_PRINT("%s IPv4 Notify Node Address: %s", indent, GET_IPADDR_STRING(obj_tptr)); obj_tlen-=sizeof(nd_ipv4); obj_tptr+=sizeof(nd_ipv4); break; case RSVP_CTYPE_IPV6: if (obj_tlen < sizeof(nd_ipv6)) goto obj_tooshort; ND_PRINT("%s IPv6 Notify Node Address: %s", indent, GET_IP6ADDR_STRING(obj_tptr)); obj_tlen-=sizeof(nd_ipv6); obj_tptr+=sizeof(nd_ipv6); break; default: hexdump=TRUE; } break; case RSVP_OBJ_SUGGESTED_LABEL: /* fall through */ case RSVP_OBJ_UPSTREAM_LABEL: /* fall through */ case RSVP_OBJ_RECOVERY_LABEL: /* fall through */ case RSVP_OBJ_LABEL: switch(rsvp_obj_ctype) { case RSVP_CTYPE_1: while(obj_tlen >= 4 ) { ND_PRINT("%s Label: %u", indent, GET_BE_U_4(obj_tptr)); obj_tlen-=4; obj_tptr+=4; } break; case RSVP_CTYPE_2: if (obj_tlen < 4) goto obj_tooshort; ND_PRINT("%s Generalized Label: %u", indent, GET_BE_U_4(obj_tptr)); obj_tlen-=4; obj_tptr+=4; break; case RSVP_CTYPE_3: if (obj_tlen < 12) goto obj_tooshort; ND_PRINT("%s Waveband ID: %u%s Start Label: %u, Stop Label: %u", indent, GET_BE_U_4(obj_tptr), indent, GET_BE_U_4(obj_tptr + 4), GET_BE_U_4(obj_tptr + 8)); obj_tlen-=12; obj_tptr+=12; break; default: hexdump=TRUE; } break; case RSVP_OBJ_STYLE: switch(rsvp_obj_ctype) { case RSVP_CTYPE_1: if (obj_tlen < 4) goto obj_tooshort; ND_PRINT("%s Reservation Style: %s, Flags: [0x%02x]", indent, tok2str(rsvp_resstyle_values, "Unknown", GET_BE_U_3(obj_tptr + 1)), GET_U_1(obj_tptr)); obj_tlen-=4; obj_tptr+=4; break; default: hexdump=TRUE; } break; case RSVP_OBJ_SENDER_TEMPLATE: switch(rsvp_obj_ctype) { case RSVP_CTYPE_IPV4: if (obj_tlen < 8) goto obj_tooshort; ND_PRINT("%s Source Address: %s, Source Port: %u", indent, GET_IPADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 6)); obj_tlen-=8; obj_tptr+=8; break; case RSVP_CTYPE_IPV6: if (obj_tlen < 20) goto obj_tooshort; ND_PRINT("%s Source Address: %s, Source Port: %u", indent, GET_IP6ADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 18)); obj_tlen-=20; obj_tptr+=20; break; case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */ if (obj_tlen < 40) goto obj_tooshort; ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x" "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x", indent, GET_IP6ADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 18), indent, GET_IP6ADDR_STRING(obj_tptr+20), GET_BE_U_2(obj_tptr + 38)); obj_tlen-=40; obj_tptr+=40; break; case RSVP_CTYPE_TUNNEL_IPV4: if (obj_tlen < 8) goto obj_tooshort; ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP-ID: 0x%04x", indent, GET_IPADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 6)); obj_tlen-=8; obj_tptr+=8; break; case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */ if (obj_tlen < 16) goto obj_tooshort; ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x" "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x", indent, GET_IPADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 6), indent, GET_IPADDR_STRING(obj_tptr+8), GET_BE_U_2(obj_tptr + 12)); obj_tlen-=16; obj_tptr+=16; break; default: hexdump=TRUE; } break; case RSVP_OBJ_LABEL_REQ: switch(rsvp_obj_ctype) { case RSVP_CTYPE_1: while(obj_tlen >= 4 ) { ND_PRINT("%s L3 Protocol ID: %s", indent, tok2str(ethertype_values, "Unknown Protocol (0x%04x)", GET_BE_U_2(obj_tptr + 2))); obj_tlen-=4; obj_tptr+=4; } break; case RSVP_CTYPE_2: if (obj_tlen < 12) goto obj_tooshort; ND_PRINT("%s L3 Protocol ID: %s", indent, tok2str(ethertype_values, "Unknown Protocol (0x%04x)", GET_BE_U_2(obj_tptr + 2))); ND_PRINT(",%s merge capability", ((GET_U_1(obj_tptr + 4)) & 0x80) ? "no" : "" ); ND_PRINT("%s Minimum VPI/VCI: %u/%u", indent, (GET_BE_U_2(obj_tptr + 4))&0xfff, (GET_BE_U_2(obj_tptr + 6)) & 0xfff); ND_PRINT("%s Maximum VPI/VCI: %u/%u", indent, (GET_BE_U_2(obj_tptr + 8))&0xfff, (GET_BE_U_2(obj_tptr + 10)) & 0xfff); obj_tlen-=12; obj_tptr+=12; break; case RSVP_CTYPE_3: if (obj_tlen < 12) goto obj_tooshort; ND_PRINT("%s L3 Protocol ID: %s", indent, tok2str(ethertype_values, "Unknown Protocol (0x%04x)", GET_BE_U_2(obj_tptr + 2))); ND_PRINT("%s Minimum/Maximum DLCI: %u/%u, %s%s bit DLCI", indent, (GET_BE_U_4(obj_tptr + 4))&0x7fffff, (GET_BE_U_4(obj_tptr + 8))&0x7fffff, (((GET_BE_U_2(obj_tptr + 4)>>7)&3) == 0 ) ? "10" : "", (((GET_BE_U_2(obj_tptr + 4) >> 7) & 3) == 2 ) ? "23" : ""); obj_tlen-=12; obj_tptr+=12; break; case RSVP_CTYPE_4: if (obj_tlen < 4) goto obj_tooshort; ND_PRINT("%s LSP Encoding Type: %s (%u)", indent, tok2str(gmpls_encoding_values, "Unknown", GET_U_1(obj_tptr)), GET_U_1(obj_tptr)); ND_PRINT("%s Switching Type: %s (%u), Payload ID: %s (0x%04x)", indent, tok2str(gmpls_switch_cap_values, "Unknown", GET_U_1((obj_tptr + 1))), GET_U_1(obj_tptr + 1), tok2str(gmpls_payload_values, "Unknown", GET_BE_U_2(obj_tptr + 2)), GET_BE_U_2(obj_tptr + 2)); obj_tlen-=4; obj_tptr+=4; break; default: hexdump=TRUE; } break; case RSVP_OBJ_RRO: case RSVP_OBJ_ERO: switch(rsvp_obj_ctype) { case RSVP_CTYPE_IPV4: while(obj_tlen >= 4 ) { u_char length; ND_TCHECK_4(obj_tptr); length = GET_U_1(obj_tptr + 1); ND_PRINT("%s Subobject Type: %s, length %u", indent, tok2str(rsvp_obj_xro_values, "Unknown %u", RSVP_OBJ_XRO_MASK_SUBOBJ(GET_U_1(obj_tptr))), length); if (obj_tlen < length) { ND_PRINT("%s ERROR: ERO subobject length > object length", indent); break; } if (length == 0) { /* prevent infinite loops */ ND_PRINT("%s ERROR: zero length ERO subtype", indent); break; } switch(RSVP_OBJ_XRO_MASK_SUBOBJ(GET_U_1(obj_tptr))) { u_char prefix_length; case RSVP_OBJ_XRO_IPV4: if (length != 8) { ND_PRINT(" ERROR: length != 8"); goto invalid; } ND_TCHECK_8(obj_tptr); prefix_length = GET_U_1(obj_tptr + 6); if (prefix_length != 32) { ND_PRINT(" ERROR: Prefix length %u != 32", prefix_length); goto invalid; } ND_PRINT(", %s, %s/%u, Flags: [%s]", RSVP_OBJ_XRO_MASK_LOOSE(GET_U_1(obj_tptr)) ? "Loose" : "Strict", GET_IPADDR_STRING(obj_tptr+2), GET_U_1((obj_tptr + 6)), bittok2str(rsvp_obj_rro_flag_values, "none", GET_U_1((obj_tptr + 7)))); /* rfc3209 says that this field is rsvd. */ break; case RSVP_OBJ_XRO_LABEL: if (length != 8) { ND_PRINT(" ERROR: length != 8"); goto invalid; } ND_PRINT(", Flags: [%s] (%#x), Class-Type: %s (%u), %u", bittok2str(rsvp_obj_rro_label_flag_values, "none", GET_U_1((obj_tptr + 2))), GET_U_1(obj_tptr + 2), tok2str(rsvp_ctype_values, "Unknown", GET_U_1((obj_tptr + 3)) + (256 * RSVP_OBJ_RRO)), GET_U_1((obj_tptr + 3)), GET_BE_U_4(obj_tptr + 4)); } obj_tlen-=length; obj_tptr+=length; } break; default: hexdump=TRUE; } break; case RSVP_OBJ_HELLO: switch(rsvp_obj_ctype) { case RSVP_CTYPE_1: case RSVP_CTYPE_2: if (obj_tlen < 8) goto obj_tooshort; ND_PRINT("%s Source Instance: 0x%08x, Destination Instance: 0x%08x", indent, GET_BE_U_4(obj_tptr), GET_BE_U_4(obj_tptr + 4)); obj_tlen-=8; obj_tptr+=8; break; default: hexdump=TRUE; } break; case RSVP_OBJ_RESTART_CAPABILITY: switch(rsvp_obj_ctype) { case RSVP_CTYPE_1: if (obj_tlen < 8) goto obj_tooshort; ND_PRINT("%s Restart Time: %ums, Recovery Time: %ums", indent, GET_BE_U_4(obj_tptr), GET_BE_U_4(obj_tptr + 4)); obj_tlen-=8; obj_tptr+=8; break; default: hexdump=TRUE; } break; case RSVP_OBJ_CAPABILITY: switch(rsvp_obj_ctype) { case RSVP_CTYPE_1: if (obj_tlen < 4) goto obj_tooshort; uint32_t unused_and_flags = GET_BE_U_4(obj_tptr); if (unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK) ND_PRINT("%s [reserved=0x%08x must be zero]", indent, unused_and_flags & ~RSVP_OBJ_CAPABILITY_FLAGS_MASK); ND_PRINT("%s Flags: [%s]", indent, bittok2str(rsvp_obj_capability_flag_values, "none", (unused_and_flags & RSVP_OBJ_CAPABILITY_FLAGS_MASK))); obj_tlen-=4; obj_tptr+=4; break; default: hexdump=TRUE; } break; case RSVP_OBJ_SESSION_ATTRIBUTE: switch(rsvp_obj_ctype) { case RSVP_CTYPE_TUNNEL_IPV4: if (obj_tlen < 4) goto obj_tooshort; namelen = GET_U_1(obj_tptr + 3); if (obj_tlen < 4+namelen) goto obj_tooshort; ND_PRINT("%s Session Name: ", indent); for (i = 0; i < namelen; i++) fn_print_char(ndo, GET_U_1(obj_tptr + 4 + i)); ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Flags: [%s] (%#x)", indent, GET_U_1(obj_tptr), GET_U_1(obj_tptr + 1), bittok2str(rsvp_session_attribute_flag_values, "none", GET_U_1((obj_tptr + 2))), GET_U_1(obj_tptr + 2)); obj_tlen-=4+namelen; obj_tptr+=4+namelen; break; default: hexdump=TRUE; } break; case RSVP_OBJ_GENERALIZED_UNI: switch(rsvp_obj_ctype) { u_int subobj_type,af,subobj_len,total_subobj_len; case RSVP_CTYPE_1: if (obj_tlen < 4) goto obj_tooshort; /* read variable length subobjects */ total_subobj_len = obj_tlen; while(total_subobj_len != 0) { /* If RFC 3476 Section 3.1 defined that a sub-object of the * GENERALIZED_UNI RSVP object must have the Length field as * a multiple of 4, instead of the check below it would be * better to test total_subobj_len only once before the loop. * So long as it does not define it and this while loop does * not implement such a requirement, let's accept that within * each iteration subobj_len may happen to be a multiple of 1 * and test it and total_subobj_len respectively. */ ND_ICHECK_U(total_subobj_len, <, 4); subobj_len = GET_BE_U_2(obj_tptr); subobj_type = (GET_BE_U_2(obj_tptr + 2))>>8; af = (GET_BE_U_2(obj_tptr + 2))&0x00FF; ND_PRINT("%s Subobject Type: %s (%u), AF: %s (%u), length: %u", indent, tok2str(rsvp_obj_generalized_uni_values, "Unknown", subobj_type), subobj_type, tok2str(af_values, "Unknown", af), af, subobj_len); /* In addition to what is explained above, the same spec does not * explicitly say that the same Length field includes the 4-octet * sub-object header, but as long as this while loop implements it * as it does include, let's keep the check below consistent with * the rest of the code. * * XXX - RFC 3476 Section 3.1 says "The contents of these * sub-objects are described in [8]", where [8] is * UNI 1.0 Signaling Specification, The Optical * Internetworking Forum. The URL they give for that * document is * * http://www.oiforum.com/public/UNI_1.0_ia.html * * but that doesn't work; the new URL appears to be * * https://web.archive.org/web/20160401194747/http://www.oiforum.com/public/documents/OIF-UNI-01.0.pdf * * and *that* document, in section 12.5.2.3 * "GENERALIZED_UNI Object (Class-Num=11bbbbbb (TBA))", * says nothing about the length field in general, but * some of the examples it gives in subsections have * length field values that clearly includes the length * of the sub-object header as well as the length of the * value. */ if(subobj_len < 4 || subobj_len > total_subobj_len || obj_tlen < subobj_len) goto invalid; switch(subobj_type) { case RSVP_GEN_UNI_SUBOBJ_SOURCE_TNA_ADDRESS: case RSVP_GEN_UNI_SUBOBJ_DESTINATION_TNA_ADDRESS: switch(af) { case AFNUM_IP: if (subobj_len < 8) goto subobj_tooshort; ND_PRINT("%s UNI IPv4 TNA address: %s", indent, GET_IPADDR_STRING(obj_tptr + 4)); break; case AFNUM_IP6: if (subobj_len < 20) goto subobj_tooshort; ND_PRINT("%s UNI IPv6 TNA address: %s", indent, GET_IP6ADDR_STRING(obj_tptr + 4)); break; case AFNUM_NSAP: if (subobj_len) { /* unless we have a TLV parser lets just hexdump */ hexdump=TRUE; } break; } break; case RSVP_GEN_UNI_SUBOBJ_DIVERSITY: if (subobj_len > 4) { /* unless we have a TLV parser lets just hexdump */ hexdump=TRUE; } break; case RSVP_GEN_UNI_SUBOBJ_EGRESS_LABEL: if (subobj_len < 16) { goto subobj_tooshort; } ND_PRINT("%s U-bit: %x, Label type: %u, Logical port id: %u, Label: %u", indent, ((GET_BE_U_4(obj_tptr + 4))>>31), ((GET_BE_U_4(obj_tptr + 4))&0xFF), GET_BE_U_4(obj_tptr + 8), GET_BE_U_4(obj_tptr + 12)); break; case RSVP_GEN_UNI_SUBOBJ_SERVICE_LEVEL: if (subobj_len < 8) { goto subobj_tooshort; } ND_PRINT("%s Service level: %u", indent, (GET_BE_U_4(obj_tptr + 4)) >> 24); break; default: hexdump=TRUE; break; } total_subobj_len-=subobj_len; obj_tptr+=subobj_len; obj_tlen+=subobj_len; } break; default: hexdump=TRUE; } break; case RSVP_OBJ_RSVP_HOP: switch(rsvp_obj_ctype) { case RSVP_CTYPE_3: /* fall through - FIXME add TLV parser */ case RSVP_CTYPE_IPV4: if (obj_tlen < 8) goto obj_tooshort; ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x", indent, GET_IPADDR_STRING(obj_tptr), GET_BE_U_4(obj_tptr + 4)); obj_tlen-=8; obj_tptr+=8; if (obj_tlen) hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */ break; case RSVP_CTYPE_4: /* fall through - FIXME add TLV parser */ case RSVP_CTYPE_IPV6: if (obj_tlen < 20) goto obj_tooshort; ND_PRINT("%s Previous/Next Interface: %s, Logical Interface Handle: 0x%08x", indent, GET_IP6ADDR_STRING(obj_tptr), GET_BE_U_4(obj_tptr + 16)); obj_tlen-=20; obj_tptr+=20; hexdump=TRUE; /* unless we have a TLV parser lets just hexdump */ break; default: hexdump=TRUE; } break; case RSVP_OBJ_TIME_VALUES: switch(rsvp_obj_ctype) { case RSVP_CTYPE_1: if (obj_tlen < 4) goto obj_tooshort; ND_PRINT("%s Refresh Period: %ums", indent, GET_BE_U_4(obj_tptr)); obj_tlen-=4; obj_tptr+=4; break; default: hexdump=TRUE; } break; /* those three objects do share the same semantics */ case RSVP_OBJ_SENDER_TSPEC: case RSVP_OBJ_ADSPEC: case RSVP_OBJ_FLOWSPEC: switch(rsvp_obj_ctype) { case RSVP_CTYPE_2: if (obj_tlen < 4) goto obj_tooshort; ND_PRINT("%s Msg-Version: %u, length: %u", indent, (GET_U_1(obj_tptr) & 0xf0) >> 4, GET_BE_U_2(obj_tptr + 2) << 2); obj_tptr+=4; /* get to the start of the service header */ obj_tlen-=4; while (obj_tlen >= 4) { intserv_serv_tlen=GET_BE_U_2(obj_tptr + 2)<<2; ND_PRINT("%s Service Type: %s (%u), break bit %sset, Service length: %u", indent, tok2str(rsvp_intserv_service_type_values,"unknown",GET_U_1((obj_tptr))), GET_U_1(obj_tptr), (GET_U_1(obj_tptr + 1)&0x80) ? "" : "not ", intserv_serv_tlen); obj_tptr+=4; /* get to the start of the parameter list */ obj_tlen-=4; while (intserv_serv_tlen>=4) { processed = rsvp_intserv_print(ndo, obj_tptr, obj_tlen); if (processed == 0) break; obj_tlen-=processed; intserv_serv_tlen-=processed; obj_tptr+=processed; } } break; default: hexdump=TRUE; } break; case RSVP_OBJ_FILTERSPEC: switch(rsvp_obj_ctype) { case RSVP_CTYPE_IPV4: if (obj_tlen < 8) goto obj_tooshort; ND_PRINT("%s Source Address: %s, Source Port: %u", indent, GET_IPADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 6)); obj_tlen-=8; obj_tptr+=8; break; case RSVP_CTYPE_IPV6: if (obj_tlen < 20) goto obj_tooshort; ND_PRINT("%s Source Address: %s, Source Port: %u", indent, GET_IP6ADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 18)); obj_tlen-=20; obj_tptr+=20; break; case RSVP_CTYPE_3: if (obj_tlen < 20) goto obj_tooshort; ND_PRINT("%s Source Address: %s, Flow Label: %u", indent, GET_IP6ADDR_STRING(obj_tptr), GET_BE_U_3(obj_tptr + 17)); obj_tlen-=20; obj_tptr+=20; break; case RSVP_CTYPE_TUNNEL_IPV6: if (obj_tlen < 20) goto obj_tooshort; ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x", indent, GET_IPADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 18)); obj_tlen-=20; obj_tptr+=20; break; case RSVP_CTYPE_13: /* IPv6 p2mp LSP tunnel */ if (obj_tlen < 40) goto obj_tooshort; ND_PRINT("%s IPv6 Tunnel Sender Address: %s, LSP ID: 0x%04x" "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x", indent, GET_IP6ADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 18), indent, GET_IP6ADDR_STRING(obj_tptr+20), GET_BE_U_2(obj_tptr + 38)); obj_tlen-=40; obj_tptr+=40; break; case RSVP_CTYPE_TUNNEL_IPV4: if (obj_tlen < 8) goto obj_tooshort; ND_PRINT("%s Source Address: %s, LSP-ID: 0x%04x", indent, GET_IPADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 6)); obj_tlen-=8; obj_tptr+=8; break; case RSVP_CTYPE_12: /* IPv4 p2mp LSP tunnel */ if (obj_tlen < 16) goto obj_tooshort; ND_PRINT("%s IPv4 Tunnel Sender Address: %s, LSP ID: 0x%04x" "%s Sub-Group Originator ID: %s, Sub-Group ID: 0x%04x", indent, GET_IPADDR_STRING(obj_tptr), GET_BE_U_2(obj_tptr + 6), indent, GET_IPADDR_STRING(obj_tptr+8), GET_BE_U_2(obj_tptr + 12)); obj_tlen-=16; obj_tptr+=16; break; default: hexdump=TRUE; } break; case RSVP_OBJ_FASTREROUTE: /* the differences between c-type 1 and 7 are minor */ obj_ptr.rsvp_obj_frr = (const struct rsvp_obj_frr_t *)obj_tptr; switch(rsvp_obj_ctype) { case RSVP_CTYPE_1: /* new style */ if (obj_tlen < sizeof(struct rsvp_obj_frr_t)) goto obj_tooshort; ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps", indent, GET_U_1(obj_ptr.rsvp_obj_frr->setup_prio), GET_U_1(obj_ptr.rsvp_obj_frr->hold_prio), GET_U_1(obj_ptr.rsvp_obj_frr->hop_limit), GET_BE_F_4(obj_ptr.rsvp_obj_frr->bandwidth) * 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; ND_PRINT("%s Setup Priority: %u, Holding Priority: %u, Hop-limit: %u, Bandwidth: %.10g Mbps", indent, GET_U_1(obj_ptr.rsvp_obj_frr->setup_prio), GET_U_1(obj_ptr.rsvp_obj_frr->hold_prio), GET_U_1(obj_ptr.rsvp_obj_frr->hop_limit), GET_BE_F_4(obj_ptr.rsvp_obj_frr->bandwidth) * 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", GET_U_1(obj_ptr.rsvp_obj_integrity->flags))); ND_PRINT("%s MD5-sum 0x%08x%08x%08x%08x ", indent, GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest), GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 4), GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 8), GET_BE_U_4(obj_ptr.rsvp_obj_integrity->digest + 12)); sigcheck = signature_verify(ndo, pptr, plen, obj_ptr.rsvp_obj_integrity->digest, rsvp_clear_checksum, rsvp_com_header); ND_PRINT(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck)); obj_tlen+=sizeof(struct rsvp_obj_integrity_t); obj_tptr+=sizeof(struct rsvp_obj_integrity_t); break; default: hexdump=TRUE; } break; case RSVP_OBJ_ADMIN_STATUS: switch(rsvp_obj_ctype) { case RSVP_CTYPE_1: if (obj_tlen < 4) goto obj_tooshort; ND_PRINT("%s Flags [%s]", indent, bittok2str(rsvp_obj_admin_status_flag_values, "none", GET_BE_U_4(obj_tptr))); obj_tlen-=4; obj_tptr+=4; break; default: hexdump=TRUE; } break; case RSVP_OBJ_LABEL_SET: switch(rsvp_obj_ctype) { case RSVP_CTYPE_1: if (obj_tlen < 4) goto obj_tooshort; action = (GET_BE_U_2(obj_tptr)>>8); ND_PRINT("%s Action: %s (%u), Label type: %u", indent, tok2str(rsvp_obj_label_set_action_values, "Unknown", action), action, (GET_BE_U_4(obj_tptr) & 0x7F)); switch (action) { case LABEL_SET_INCLUSIVE_RANGE: case LABEL_SET_EXCLUSIVE_RANGE: /* fall through */ /* only a couple of subchannels are expected */ if (obj_tlen < 12) goto obj_tooshort; ND_PRINT("%s Start range: %u, End range: %u", indent, GET_BE_U_4(obj_tptr + 4), GET_BE_U_4(obj_tptr + 8)); obj_tlen-=12; obj_tptr+=12; break; default: obj_tlen-=4; obj_tptr+=4; subchannel = 1; while(obj_tlen >= 4 ) { ND_PRINT("%s Subchannel #%u: %u", indent, subchannel, GET_BE_U_4(obj_tptr)); obj_tptr+=4; obj_tlen-=4; subchannel++; } break; } break; default: hexdump=TRUE; } break; case RSVP_OBJ_S2L: switch (rsvp_obj_ctype) { case RSVP_CTYPE_IPV4: if (obj_tlen < 4) goto obj_tooshort; ND_PRINT("%s Sub-LSP destination address: %s", indent, GET_IPADDR_STRING(obj_tptr)); obj_tlen-=4; obj_tptr+=4; break; case RSVP_CTYPE_IPV6: if (obj_tlen < 16) goto obj_tooshort; ND_PRINT("%s Sub-LSP destination address: %s", indent, GET_IP6ADDR_STRING(obj_tptr)); obj_tlen-=16; obj_tptr+=16; break; default: hexdump=TRUE; } break; /* * FIXME those are the defined objects that lack a decoder * you are welcome to contribute code ;-) */ case RSVP_OBJ_SCOPE: case RSVP_OBJ_POLICY_DATA: case RSVP_OBJ_ACCEPT_LABEL_SET: case RSVP_OBJ_PROTECTION: default: if (ndo->ndo_vflag <= 1) print_unknown_data(ndo, obj_tptr, "\n\t ", obj_tlen); /* FIXME indentation */ break; } /* do we also want to see a hex dump ? */ if (ndo->ndo_vflag > 1 || hexdump == TRUE) print_unknown_data(ndo, tptr + sizeof(struct rsvp_object_header), "\n\t ", /* FIXME indentation */ rsvp_obj_len - sizeof(struct rsvp_object_header)); tptr+=rsvp_obj_len; tlen-=rsvp_obj_len; } return 0; subobj_tooshort: ND_PRINT("%sERROR: sub-object is too short", indent); return -1; obj_tooshort: ND_PRINT("%sERROR: object is too short", indent); return -1; invalid: nd_print_invalid(ndo); return -1; } void rsvp_print(netdissect_options *ndo, const u_char *pptr, u_int len) { const struct rsvp_common_header *rsvp_com_header; uint8_t version_flags, msg_type; const u_char *tptr; u_short plen, tlen; ndo->ndo_protocol = "rsvp"; tptr=pptr; rsvp_com_header = (const struct rsvp_common_header *)pptr; ND_TCHECK_SIZE(rsvp_com_header); version_flags = GET_U_1(rsvp_com_header->version_flags); /* * Sanity checking of the header. */ if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) { ND_PRINT("ERROR: RSVP version %u packet not supported", RSVP_EXTRACT_VERSION(version_flags)); return; } msg_type = GET_U_1(rsvp_com_header->msg_type); /* in non-verbose mode just lets print the basic Message Type*/ if (ndo->ndo_vflag < 1) { ND_PRINT("RSVPv%u %s Message, length: %u", RSVP_EXTRACT_VERSION(version_flags), tok2str(rsvp_msg_type_values, "unknown (%u)",msg_type), len); return; } /* ok they seem to want to know everything - lets fully decode it */ plen = tlen = GET_BE_U_2(rsvp_com_header->length); ND_PRINT("\n\tRSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x", RSVP_EXTRACT_VERSION(version_flags), tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type), msg_type, bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)), tlen, GET_U_1(rsvp_com_header->ttl), GET_BE_U_2(rsvp_com_header->checksum)); if (tlen < sizeof(struct rsvp_common_header)) { ND_PRINT("ERROR: common header too short %u < %zu", tlen, sizeof(struct rsvp_common_header)); return; } tptr+=sizeof(struct rsvp_common_header); tlen-=sizeof(struct rsvp_common_header); switch(msg_type) { case RSVP_MSGTYPE_BUNDLE: /* * Process each submessage in the bundle message. * Bundle messages may not contain bundle submessages, so we don't * need to handle bundle submessages specially. */ while(tlen != 0) { const u_char *subpptr=tptr, *subtptr; u_short subplen, subtlen; subtptr=subpptr; rsvp_com_header = (const struct rsvp_common_header *)subpptr; ND_TCHECK_SIZE(rsvp_com_header); version_flags = GET_U_1(rsvp_com_header->version_flags); /* * Sanity checking of the header. */ if (RSVP_EXTRACT_VERSION(version_flags) != RSVP_VERSION) { ND_PRINT("ERROR: RSVP version %u packet not supported", RSVP_EXTRACT_VERSION(version_flags)); return; } subplen = subtlen = GET_BE_U_2(rsvp_com_header->length); msg_type = GET_U_1(rsvp_com_header->msg_type); ND_PRINT("\n\t RSVPv%u %s Message (%u), Flags: [%s], length: %u, ttl: %u, checksum: 0x%04x", RSVP_EXTRACT_VERSION(version_flags), tok2str(rsvp_msg_type_values, "unknown, type: %u",msg_type), msg_type, bittok2str(rsvp_header_flag_values,"none",RSVP_EXTRACT_FLAGS(version_flags)), subtlen, GET_U_1(rsvp_com_header->ttl), GET_BE_U_2(rsvp_com_header->checksum)); if (subtlen < sizeof(struct rsvp_common_header)) { ND_PRINT("ERROR: common header too short %u < %zu", subtlen, sizeof(struct rsvp_common_header)); return; } if (tlen < subtlen) { ND_PRINT("ERROR: common header too large %u > %u", subtlen, tlen); return; } subtptr+=sizeof(struct rsvp_common_header); subtlen-=sizeof(struct rsvp_common_header); /* * Print all objects in the submessage. */ if (rsvp_obj_print(ndo, subpptr, subplen, subtptr, "\n\t ", subtlen, rsvp_com_header) == -1) return; tptr+=subtlen+sizeof(struct rsvp_common_header); tlen-=subtlen+sizeof(struct rsvp_common_header); } break; case RSVP_MSGTYPE_PATH: case RSVP_MSGTYPE_RESV: case RSVP_MSGTYPE_PATHERR: case RSVP_MSGTYPE_RESVERR: case RSVP_MSGTYPE_PATHTEAR: case RSVP_MSGTYPE_RESVTEAR: case RSVP_MSGTYPE_RESVCONF: case RSVP_MSGTYPE_HELLO_OLD: case RSVP_MSGTYPE_HELLO: case RSVP_MSGTYPE_ACK: case RSVP_MSGTYPE_SREFRESH: /* * Print all objects in the message. */ if (rsvp_obj_print(ndo, pptr, plen, tptr, "\n\t ", tlen, rsvp_com_header) == -1) return; break; default: print_unknown_data(ndo, tptr, "\n\t ", tlen); break; } }