| /* |
| * 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); |
| } |
