f49c5d523a
MFC after: 1 month
890 lines
41 KiB
C
890 lines
41 KiB
C
/*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that: (1) source code
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* distributions retain the above copyright notice and this paragraph
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* in its entirety, and (2) distributions including binary code include
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* the above copyright notice and this paragraph in its entirety in
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* the documentation or other materials provided with the distribution.
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND
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* WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
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* LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE.
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*
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* Original code by Hannes Gredler (hannes@juniper.net)
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*/
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#define NETDISSECT_REWORKED
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <tcpdump-stdinc.h>
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#include "interface.h"
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#include "extract.h"
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#include "addrtoname.h"
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#include "l2vpn.h"
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#include "oui.h"
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/*
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* LSPPING common header
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*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Version Number | Must Be Zero |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Message Type | Reply mode | Return Code | Return Subcode|
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Sender's Handle |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Sequence Number |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | TimeStamp Sent (seconds) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | TimeStamp Sent (microseconds) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | TimeStamp Received (seconds) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | TimeStamp Received (microseconds) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | TLVs ... |
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* . .
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* . .
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* . .
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*/
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struct lspping_common_header {
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uint8_t version[2];
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uint8_t reserved[2];
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uint8_t msg_type;
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uint8_t reply_mode;
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uint8_t return_code;
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uint8_t return_subcode;
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uint8_t sender_handle[4];
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uint8_t seq_number[4];
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uint8_t ts_sent_sec[4];
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uint8_t ts_sent_usec[4];
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uint8_t ts_rcvd_sec[4];
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uint8_t ts_rcvd_usec[4];
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};
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#define LSPPING_VERSION 1
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static const struct tok lspping_msg_type_values[] = {
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{ 1, "MPLS Echo Request"},
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{ 2, "MPLS Echo Reply"},
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{ 0, NULL}
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};
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static const struct tok lspping_reply_mode_values[] = {
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{ 1, "Do not reply"},
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{ 2, "Reply via an IPv4/IPv6 UDP packet"},
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{ 3, "Reply via an IPv4/IPv6 UDP packet with Router Alert"},
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{ 4, "Reply via application level control channel"},
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{ 0, NULL}
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};
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static const struct tok lspping_return_code_values[] = {
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{ 0, "No return code or return code contained in the Error Code TLV"},
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{ 1, "Malformed echo request received"},
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{ 2, "One or more of the TLVs was not understood"},
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{ 3, "Replying router is an egress for the FEC at stack depth"},
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{ 4, "Replying router has no mapping for the FEC at stack depth"},
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{ 5, "Reserved"},
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{ 6, "Reserved"},
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{ 7, "Reserved"},
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{ 8, "Label switched at stack-depth"},
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{ 9, "Label switched but no MPLS forwarding at stack-depth"},
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{ 10, "Mapping for this FEC is not the given label at stack depth"},
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{ 11, "No label entry at stack-depth"},
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{ 12, "Protocol not associated with interface at FEC stack depth"},
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};
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/*
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* LSPPING TLV header
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Type | Length |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Value |
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* . .
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* . .
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* . .
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* | |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_header {
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uint8_t type[2];
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uint8_t length[2];
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};
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#define LSPPING_TLV_TARGET_FEC_STACK 1
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#define LSPPING_TLV_DOWNSTREAM_MAPPING 2
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#define LSPPING_TLV_PAD 3
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#define LSPPING_TLV_VENDOR_ENTERPRISE 5
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#define LSPPING_TLV_VENDOR_ENTERPRISE_LEN 4
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#define LSPPING_TLV_INTERFACE_LABEL_STACK 7
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#define LSPPING_TLV_ERROR_CODE 9
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#define LSPPING_TLV_REPLY_TOS_BYTE 10
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#define LSPPING_TLV_BFD_DISCRIMINATOR 15 /* draft-ietf-bfd-mpls-02 */
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#define LSPPING_TLV_BFD_DISCRIMINATOR_LEN 4
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#define LSPPING_TLV_VENDOR_PRIVATE 0xfc00
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static const struct tok lspping_tlv_values[] = {
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{ LSPPING_TLV_TARGET_FEC_STACK, "Target FEC Stack" },
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{ LSPPING_TLV_DOWNSTREAM_MAPPING, "Downstream Mapping" },
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{ LSPPING_TLV_PAD, "Pad" },
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{ LSPPING_TLV_ERROR_CODE, "Error Code" },
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{ LSPPING_TLV_VENDOR_ENTERPRISE, "Vendor Enterprise Code" },
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{ LSPPING_TLV_INTERFACE_LABEL_STACK, "Interface Label Stack" },
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{ LSPPING_TLV_REPLY_TOS_BYTE, "Reply TOS Byte" },
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{ LSPPING_TLV_BFD_DISCRIMINATOR, "BFD Discriminator" },
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{ LSPPING_TLV_VENDOR_PRIVATE, "Vendor Private Code" },
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{ 0, NULL}
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};
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#define LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4 1
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#define LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6 2
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#define LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4 3
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#define LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6 4
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#define LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4 6
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#define LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6 7
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#define LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT 8
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#define LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID_OLD 9
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#define LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID 10
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#define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4 11
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#define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6 12
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static const struct tok lspping_tlvtargetfec_subtlv_values[] = {
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{ LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4, "LDP IPv4 prefix"},
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{ LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6, "LDP IPv6 prefix"},
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{ LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4, "RSVP IPv4 Session Query"},
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{ LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6, "RSVP IPv6 Session Query"},
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{ 5, "Reserved"},
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{ LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4, "VPN IPv4 prefix"},
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{ LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6, "VPN IPv6 prefix"},
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{ LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT, "L2 VPN endpoint"},
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{ LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID_OLD, "L2 circuit ID (old)"},
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{ LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID, "L2 circuit ID"},
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{ LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4, "BGP labeled IPv4 prefix"},
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{ LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6, "BGP labeled IPv6 prefix"},
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{ 0, NULL}
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};
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/*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | IPv4 prefix |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Prefix Length | Must Be Zero |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t {
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uint8_t prefix [4];
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uint8_t prefix_len;
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};
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/*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | IPv6 prefix |
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* | (16 octets) |
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* | |
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* | |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Prefix Length | Must Be Zero |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t {
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uint8_t prefix [16];
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uint8_t prefix_len;
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};
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/*
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Sender identifier |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | IPv4 prefix |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Prefix Length | Must Be Zero |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t {
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uint8_t sender_id [4];
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uint8_t prefix [4];
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uint8_t prefix_len;
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};
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/*
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Sender identifier |
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* | (16 octets) |
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* | |
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* | |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | IPv6 prefix |
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* | (16 octets) |
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* | |
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* | |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Prefix Length | Must Be Zero |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t {
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uint8_t sender_id [16];
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uint8_t prefix [16];
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uint8_t prefix_len;
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};
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/*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | IPv4 tunnel end point address |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Must Be Zero | Tunnel ID |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Extended Tunnel ID |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | IPv4 tunnel sender address |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Must Be Zero | LSP ID |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t {
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uint8_t tunnel_endpoint [4];
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uint8_t res[2];
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uint8_t tunnel_id[2];
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uint8_t extended_tunnel_id[4];
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uint8_t tunnel_sender [4];
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uint8_t res2[2];
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uint8_t lsp_id [2];
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};
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/*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | IPv6 tunnel end point address |
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* | |
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* | |
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* | |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Must Be Zero | Tunnel ID |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Extended Tunnel ID |
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* | |
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* | |
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* | |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | IPv6 tunnel sender address |
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* | |
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* | |
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* | |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Must Be Zero | LSP ID |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t {
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uint8_t tunnel_endpoint [16];
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uint8_t res[2];
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uint8_t tunnel_id[2];
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uint8_t extended_tunnel_id[16];
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uint8_t tunnel_sender [16];
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uint8_t res2[2];
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uint8_t lsp_id [2];
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};
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/*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Route Distinguisher |
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* | (8 octets) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | IPv4 prefix |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Prefix Length | Must Be Zero |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t {
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uint8_t rd [8];
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uint8_t prefix [4];
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uint8_t prefix_len;
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};
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/*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Route Distinguisher |
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* | (8 octets) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | IPv6 prefix |
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* | (16 octets) |
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* | |
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* | |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Prefix Length | Must Be Zero |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t {
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uint8_t rd [8];
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uint8_t prefix [16];
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uint8_t prefix_len;
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};
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/*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Route Distinguisher |
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* | (8 octets) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Sender's CE ID | Receiver's CE ID |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Encapsulation Type | Must Be Zero |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* 0 1 2 3
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*/
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struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t {
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uint8_t rd [8];
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uint8_t sender_ce_id [2];
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uint8_t receiver_ce_id [2];
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uint8_t encapsulation[2];
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};
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/*
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Remote PE Address |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | VC ID |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Encapsulation Type | Must Be Zero |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_old_t {
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uint8_t remote_pe_address [4];
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uint8_t vc_id [4];
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uint8_t encapsulation[2];
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};
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/*
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Sender's PE Address |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Remote PE Address |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | VC ID |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Encapsulation Type | Must Be Zero |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_t {
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uint8_t sender_pe_address [4];
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uint8_t remote_pe_address [4];
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uint8_t vc_id [4];
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uint8_t encapsulation[2];
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};
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/*
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* 0 1 2 3
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | MTU | Address Type | Resvd (SBZ) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Downstream IP Address (4 or 16 octets) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Downstream Interface Address (4 or 16 octets) |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Hash Key Type | Depth Limit | Multipath Length |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* . .
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* . (Multipath Information) .
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* . .
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | Downstream Label | Protocol |
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
* . .
|
|
* . .
|
|
* . .
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
* | Downstream Label | Protocol |
|
|
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
*/
|
|
struct lspping_tlv_downstream_map_ipv4_t {
|
|
uint8_t mtu [2];
|
|
uint8_t address_type;
|
|
uint8_t res;
|
|
uint8_t downstream_ip[4];
|
|
uint8_t downstream_interface[4];
|
|
};
|
|
|
|
struct lspping_tlv_downstream_map_ipv6_t {
|
|
uint8_t mtu [2];
|
|
uint8_t address_type;
|
|
uint8_t res;
|
|
uint8_t downstream_ip[16];
|
|
uint8_t downstream_interface[16];
|
|
};
|
|
|
|
struct lspping_tlv_downstream_map_info_t {
|
|
uint8_t hash_key_type;
|
|
uint8_t depth_limit;
|
|
uint8_t multipath_length [2];
|
|
};
|
|
|
|
#define LSPPING_AFI_IPV4 1
|
|
#define LSPPING_AFI_UNMB 2
|
|
#define LSPPING_AFI_IPV6 3
|
|
|
|
static const struct tok lspping_tlv_downstream_addr_values[] = {
|
|
{ LSPPING_AFI_IPV4, "IPv4"},
|
|
{ LSPPING_AFI_IPV6, "IPv6"},
|
|
{ LSPPING_AFI_UNMB, "Unnumbered"},
|
|
{ 0, NULL}
|
|
};
|
|
|
|
void
|
|
lspping_print(netdissect_options *ndo,
|
|
register const u_char *pptr, register u_int len) {
|
|
|
|
const struct lspping_common_header *lspping_com_header;
|
|
const struct lspping_tlv_header *lspping_tlv_header;
|
|
const struct lspping_tlv_header *lspping_subtlv_header;
|
|
const u_char *tptr,*tlv_tptr,*subtlv_tptr;
|
|
int tlen,lspping_tlv_len,lspping_tlv_type,tlv_tlen;
|
|
int tlv_hexdump,subtlv_hexdump;
|
|
int lspping_subtlv_len,lspping_subtlv_type;
|
|
struct timeval timestamp;
|
|
|
|
union {
|
|
const struct lspping_tlv_downstream_map_ipv4_t *lspping_tlv_downstream_map_ipv4;
|
|
const struct lspping_tlv_downstream_map_ipv6_t *lspping_tlv_downstream_map_ipv6;
|
|
const struct lspping_tlv_downstream_map_info_t *lspping_tlv_downstream_map_info;
|
|
} tlv_ptr;
|
|
|
|
union {
|
|
const struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t *lspping_tlv_targetfec_subtlv_ldp_ipv4;
|
|
const struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t *lspping_tlv_targetfec_subtlv_ldp_ipv6;
|
|
const struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t *lspping_tlv_targetfec_subtlv_rsvp_ipv4;
|
|
const struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t *lspping_tlv_targetfec_subtlv_rsvp_ipv6;
|
|
const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t *lspping_tlv_targetfec_subtlv_l3vpn_ipv4;
|
|
const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t *lspping_tlv_targetfec_subtlv_l3vpn_ipv6;
|
|
const struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t *lspping_tlv_targetfec_subtlv_l2vpn_endpt;
|
|
const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_old_t *lspping_tlv_targetfec_subtlv_l2vpn_vcid_old;
|
|
const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_t *lspping_tlv_targetfec_subtlv_l2vpn_vcid;
|
|
const struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t *lspping_tlv_targetfec_subtlv_bgp_ipv4;
|
|
const struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t *lspping_tlv_targetfec_subtlv_bgp_ipv6;
|
|
} subtlv_ptr;
|
|
|
|
tptr=pptr;
|
|
lspping_com_header = (const struct lspping_common_header *)pptr;
|
|
ND_TCHECK(*lspping_com_header);
|
|
|
|
/*
|
|
* Sanity checking of the header.
|
|
*/
|
|
if (EXTRACT_16BITS(&lspping_com_header->version[0]) != LSPPING_VERSION) {
|
|
ND_PRINT((ndo, "LSP-PING version %u packet not supported",
|
|
EXTRACT_16BITS(&lspping_com_header->version[0])));
|
|
return;
|
|
}
|
|
|
|
/* in non-verbose mode just lets print the basic Message Type*/
|
|
if (ndo->ndo_vflag < 1) {
|
|
ND_PRINT((ndo, "LSP-PINGv%u, %s, seq %u, length: %u",
|
|
EXTRACT_16BITS(&lspping_com_header->version[0]),
|
|
tok2str(lspping_msg_type_values, "unknown (%u)",lspping_com_header->msg_type),
|
|
EXTRACT_32BITS(lspping_com_header->seq_number),
|
|
len));
|
|
return;
|
|
}
|
|
|
|
/* ok they seem to want to know everything - lets fully decode it */
|
|
|
|
tlen=len;
|
|
|
|
ND_PRINT((ndo, "\n\tLSP-PINGv%u, msg-type: %s (%u), length: %u\n\t reply-mode: %s (%u)",
|
|
EXTRACT_16BITS(&lspping_com_header->version[0]),
|
|
tok2str(lspping_msg_type_values, "unknown",lspping_com_header->msg_type),
|
|
lspping_com_header->msg_type,
|
|
len,
|
|
tok2str(lspping_reply_mode_values, "unknown",lspping_com_header->reply_mode),
|
|
lspping_com_header->reply_mode));
|
|
|
|
/*
|
|
* the following return codes require that the subcode is attached
|
|
* at the end of the translated token output
|
|
*/
|
|
if (lspping_com_header->return_code == 3 ||
|
|
lspping_com_header->return_code == 4 ||
|
|
lspping_com_header->return_code == 8 ||
|
|
lspping_com_header->return_code == 10 ||
|
|
lspping_com_header->return_code == 11 ||
|
|
lspping_com_header->return_code == 12 )
|
|
ND_PRINT((ndo, "\n\t Return Code: %s %u (%u)\n\t Return Subcode: (%u)",
|
|
tok2str(lspping_return_code_values, "unknown",lspping_com_header->return_code),
|
|
lspping_com_header->return_subcode,
|
|
lspping_com_header->return_code,
|
|
lspping_com_header->return_subcode));
|
|
else
|
|
ND_PRINT((ndo, "\n\t Return Code: %s (%u)\n\t Return Subcode: (%u)",
|
|
tok2str(lspping_return_code_values, "unknown",lspping_com_header->return_code),
|
|
lspping_com_header->return_code,
|
|
lspping_com_header->return_subcode));
|
|
|
|
ND_PRINT((ndo, "\n\t Sender Handle: 0x%08x, Sequence: %u",
|
|
EXTRACT_32BITS(lspping_com_header->sender_handle),
|
|
EXTRACT_32BITS(lspping_com_header->seq_number)));
|
|
|
|
timestamp.tv_sec=EXTRACT_32BITS(lspping_com_header->ts_sent_sec);
|
|
timestamp.tv_usec=EXTRACT_32BITS(lspping_com_header->ts_sent_usec);
|
|
ND_PRINT((ndo, "\n\t Sender Timestamp: "));
|
|
ts_print(ndo, ×tamp);
|
|
|
|
timestamp.tv_sec=EXTRACT_32BITS(lspping_com_header->ts_rcvd_sec);
|
|
timestamp.tv_usec=EXTRACT_32BITS(lspping_com_header->ts_rcvd_usec);
|
|
ND_PRINT((ndo, "Receiver Timestamp: "));
|
|
if ((timestamp.tv_sec != 0) && (timestamp.tv_usec != 0))
|
|
ts_print(ndo, ×tamp);
|
|
else
|
|
ND_PRINT((ndo, "no timestamp"));
|
|
|
|
tptr+=sizeof(const struct lspping_common_header);
|
|
tlen-=sizeof(const struct lspping_common_header);
|
|
|
|
while(tlen>(int)sizeof(struct lspping_tlv_header)) {
|
|
|
|
/* did we capture enough for fully decoding the tlv header ? */
|
|
ND_TCHECK2(*tptr, sizeof(struct lspping_tlv_header));
|
|
|
|
lspping_tlv_header = (const struct lspping_tlv_header *)tptr;
|
|
lspping_tlv_type=EXTRACT_16BITS(lspping_tlv_header->type);
|
|
lspping_tlv_len=EXTRACT_16BITS(lspping_tlv_header->length);
|
|
|
|
/* some little sanity checking */
|
|
if (lspping_tlv_type == 0 || lspping_tlv_len == 0)
|
|
return;
|
|
|
|
if(lspping_tlv_len < 4) {
|
|
ND_PRINT((ndo, "\n\t ERROR: TLV %u bogus size %u",lspping_tlv_type,lspping_tlv_len));
|
|
return;
|
|
}
|
|
|
|
ND_PRINT((ndo, "\n\t %s TLV (%u), length: %u",
|
|
tok2str(lspping_tlv_values,
|
|
"Unknown",
|
|
lspping_tlv_type),
|
|
lspping_tlv_type,
|
|
lspping_tlv_len));
|
|
|
|
tlv_tptr=tptr+sizeof(struct lspping_tlv_header);
|
|
tlv_tlen=lspping_tlv_len; /* header not included -> no adjustment */
|
|
|
|
/* did we capture enough for fully decoding the tlv ? */
|
|
ND_TCHECK2(*tptr, lspping_tlv_len);
|
|
tlv_hexdump=FALSE;
|
|
|
|
switch(lspping_tlv_type) {
|
|
case LSPPING_TLV_TARGET_FEC_STACK:
|
|
while(tlv_tlen>(int)sizeof(struct lspping_tlv_header)) {
|
|
|
|
/* did we capture enough for fully decoding the subtlv header ? */
|
|
ND_TCHECK2(*tptr, sizeof(struct lspping_tlv_header));
|
|
subtlv_hexdump=FALSE;
|
|
|
|
lspping_subtlv_header = (const struct lspping_tlv_header *)tlv_tptr;
|
|
lspping_subtlv_type=EXTRACT_16BITS(lspping_subtlv_header->type);
|
|
lspping_subtlv_len=EXTRACT_16BITS(lspping_subtlv_header->length);
|
|
subtlv_tptr=tlv_tptr+sizeof(struct lspping_tlv_header);
|
|
|
|
if (lspping_subtlv_len == 0)
|
|
break;
|
|
|
|
ND_PRINT((ndo, "\n\t %s subTLV (%u), length: %u",
|
|
tok2str(lspping_tlvtargetfec_subtlv_values,
|
|
"Unknown",
|
|
lspping_subtlv_type),
|
|
lspping_subtlv_type,
|
|
lspping_subtlv_len));
|
|
|
|
switch(lspping_subtlv_type) {
|
|
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv4 = \
|
|
(const struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t %s/%u",
|
|
ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv4->prefix),
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv4->prefix_len));
|
|
break;
|
|
|
|
#ifdef INET6
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv6 = \
|
|
(const struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t %s/%u",
|
|
ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv6->prefix),
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv6->prefix_len));
|
|
break;
|
|
#endif
|
|
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv4 = \
|
|
(const struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t %s/%u, sender-id %s",
|
|
ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv4->prefix),
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv4->prefix_len,
|
|
ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv4->sender_id)));
|
|
break;
|
|
|
|
#ifdef INET6
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv6 = \
|
|
(const struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t %s/%u, sender-id %s",
|
|
ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv6->prefix),
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv6->prefix_len,
|
|
ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv6->sender_id)));
|
|
break;
|
|
#endif
|
|
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4 = \
|
|
(const struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t tunnel end-point %s, tunnel sender %s, lsp-id 0x%04x" \
|
|
"\n\t tunnel-id 0x%04x, extended tunnel-id %s",
|
|
ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->tunnel_endpoint),
|
|
ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->tunnel_sender),
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->lsp_id),
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->tunnel_id),
|
|
ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->extended_tunnel_id)));
|
|
break;
|
|
|
|
#ifdef INET6
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6 = \
|
|
(const struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t tunnel end-point %s, tunnel sender %s, lsp-id 0x%04x" \
|
|
"\n\t tunnel-id 0x%04x, extended tunnel-id %s",
|
|
ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->tunnel_endpoint),
|
|
ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->tunnel_sender),
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->lsp_id),
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->tunnel_id),
|
|
ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->extended_tunnel_id)));
|
|
break;
|
|
#endif
|
|
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4 = \
|
|
(const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t RD: %s, %s/%u",
|
|
bgp_vpn_rd_print(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4->rd),
|
|
ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4->prefix),
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4->prefix_len));
|
|
break;
|
|
|
|
#ifdef INET6
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6 = \
|
|
(const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t RD: %s, %s/%u",
|
|
bgp_vpn_rd_print(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6->rd),
|
|
ip6addr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6->prefix),
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6->prefix_len));
|
|
break;
|
|
#endif
|
|
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt = \
|
|
(const struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t RD: %s, Sender CE-ID: %u, Receiver CE-ID: %u" \
|
|
"\n\t Encapsulation Type: %s (%u)",
|
|
bgp_vpn_rd_print(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->rd),
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->sender_ce_id),
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->receiver_ce_id),
|
|
tok2str(l2vpn_encaps_values,
|
|
"unknown",
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->encapsulation)),
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->encapsulation)));
|
|
|
|
break;
|
|
|
|
/* the old L2VPN VCID subTLV does not have support for the sender field */
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID_OLD:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old = \
|
|
(const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_old_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t Remote PE: %s" \
|
|
"\n\t VC-ID: 0x%08x, Encapsulation Type: %s (%u)",
|
|
ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->remote_pe_address),
|
|
EXTRACT_32BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->vc_id),
|
|
tok2str(l2vpn_encaps_values,
|
|
"unknown",
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->encapsulation)),
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->encapsulation)));
|
|
|
|
break;
|
|
|
|
case LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID:
|
|
subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid = \
|
|
(const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_t *)subtlv_tptr;
|
|
ND_PRINT((ndo, "\n\t Sender PE: %s, Remote PE: %s" \
|
|
"\n\t VC-ID: 0x%08x, Encapsulation Type: %s (%u)",
|
|
ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->sender_pe_address),
|
|
ipaddr_string(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->remote_pe_address),
|
|
EXTRACT_32BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->vc_id),
|
|
tok2str(l2vpn_encaps_values,
|
|
"unknown",
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->encapsulation)),
|
|
EXTRACT_16BITS(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->encapsulation)));
|
|
|
|
break;
|
|
|
|
default:
|
|
subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
|
|
break;
|
|
}
|
|
/* do we want to see an additionally subtlv hexdump ? */
|
|
if (ndo->ndo_vflag > 1 || subtlv_hexdump==TRUE)
|
|
print_unknown_data(ndo, tlv_tptr+sizeof(struct lspping_tlv_header), \
|
|
"\n\t ",
|
|
lspping_subtlv_len);
|
|
|
|
tlv_tptr+=lspping_subtlv_len;
|
|
tlv_tlen-=lspping_subtlv_len+sizeof(struct lspping_tlv_header);
|
|
}
|
|
break;
|
|
|
|
case LSPPING_TLV_DOWNSTREAM_MAPPING:
|
|
/* that strange thing with the downstream map TLV is that until now
|
|
* we do not know if its IPv4 or IPv6 , after we found the adress-type
|
|
* lets recast the tlv_tptr and move on */
|
|
|
|
tlv_ptr.lspping_tlv_downstream_map_ipv4= \
|
|
(const struct lspping_tlv_downstream_map_ipv4_t *)tlv_tptr;
|
|
tlv_ptr.lspping_tlv_downstream_map_ipv6= \
|
|
(const struct lspping_tlv_downstream_map_ipv6_t *)tlv_tptr;
|
|
ND_PRINT((ndo, "\n\t MTU: %u, Address-Type: %s (%u)",
|
|
EXTRACT_16BITS(tlv_ptr.lspping_tlv_downstream_map_ipv4->mtu),
|
|
tok2str(lspping_tlv_downstream_addr_values,
|
|
"unknown",
|
|
tlv_ptr.lspping_tlv_downstream_map_ipv4->address_type),
|
|
tlv_ptr.lspping_tlv_downstream_map_ipv4->address_type));
|
|
|
|
switch(tlv_ptr.lspping_tlv_downstream_map_ipv4->address_type) {
|
|
|
|
case LSPPING_AFI_IPV4:
|
|
ND_PRINT((ndo, "\n\t Downstream IP: %s" \
|
|
"\n\t Downstream Interface IP: %s",
|
|
ipaddr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv4->downstream_ip),
|
|
ipaddr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv4->downstream_interface)));
|
|
tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv4_t);
|
|
tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv4_t);
|
|
break;
|
|
#ifdef INET6
|
|
case LSPPING_AFI_IPV6:
|
|
ND_PRINT((ndo, "\n\t Downstream IP: %s" \
|
|
"\n\t Downstream Interface IP: %s",
|
|
ip6addr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv6->downstream_ip),
|
|
ip6addr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv6->downstream_interface)));
|
|
tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv6_t);
|
|
tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv6_t);
|
|
break;
|
|
#endif
|
|
case LSPPING_AFI_UNMB:
|
|
ND_PRINT((ndo, "\n\t Downstream IP: %s" \
|
|
"\n\t Downstream Interface Index: 0x%08x",
|
|
ipaddr_string(ndo, tlv_ptr.lspping_tlv_downstream_map_ipv4->downstream_ip),
|
|
EXTRACT_32BITS(tlv_ptr.lspping_tlv_downstream_map_ipv4->downstream_interface)));
|
|
tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv4_t);
|
|
tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv4_t);
|
|
break;
|
|
|
|
default:
|
|
/* should not happen ! - no error message - tok2str() has barked already */
|
|
break;
|
|
}
|
|
|
|
tlv_ptr.lspping_tlv_downstream_map_info= \
|
|
(const struct lspping_tlv_downstream_map_info_t *)tlv_tptr;
|
|
|
|
/* FIXME add hash-key type, depth limit, multipath processing */
|
|
|
|
|
|
tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_info_t);
|
|
tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_info_t);
|
|
|
|
/* FIXME print downstream labels */
|
|
|
|
|
|
tlv_hexdump=TRUE; /* dump the TLV until code complete */
|
|
|
|
break;
|
|
|
|
case LSPPING_TLV_BFD_DISCRIMINATOR:
|
|
tptr += sizeof(struct lspping_tlv_header);
|
|
ND_TCHECK2(*tptr, LSPPING_TLV_BFD_DISCRIMINATOR_LEN);
|
|
ND_PRINT((ndo, "\n\t BFD Discriminator 0x%08x", EXTRACT_32BITS(tptr)));
|
|
break;
|
|
|
|
case LSPPING_TLV_VENDOR_ENTERPRISE:
|
|
{
|
|
uint32_t vendor_id;
|
|
|
|
ND_TCHECK2(*tptr, LSPPING_TLV_VENDOR_ENTERPRISE_LEN);
|
|
vendor_id = EXTRACT_32BITS(tlv_tptr);
|
|
ND_PRINT((ndo, "\n\t Vendor: %s (0x%04x)",
|
|
tok2str(smi_values, "Unknown", vendor_id),
|
|
vendor_id));
|
|
}
|
|
break;
|
|
|
|
/*
|
|
* FIXME those are the defined TLVs that lack a decoder
|
|
* you are welcome to contribute code ;-)
|
|
*/
|
|
case LSPPING_TLV_PAD:
|
|
case LSPPING_TLV_ERROR_CODE:
|
|
case LSPPING_TLV_VENDOR_PRIVATE:
|
|
|
|
default:
|
|
if (ndo->ndo_vflag <= 1)
|
|
print_unknown_data(ndo, tlv_tptr, "\n\t ", tlv_tlen);
|
|
break;
|
|
}
|
|
/* do we want to see an additionally tlv hexdump ? */
|
|
if (ndo->ndo_vflag > 1 || tlv_hexdump==TRUE)
|
|
print_unknown_data(ndo, tptr+sizeof(struct lspping_tlv_header), "\n\t ",
|
|
lspping_tlv_len);
|
|
|
|
|
|
/* All TLVs are aligned to four octet boundary */
|
|
if (lspping_tlv_len % 4) {
|
|
lspping_tlv_len += (4 - lspping_tlv_len % 4);
|
|
}
|
|
|
|
tptr+=lspping_tlv_len+sizeof(struct lspping_tlv_header);
|
|
tlen-=lspping_tlv_len+sizeof(struct lspping_tlv_header);
|
|
}
|
|
return;
|
|
trunc:
|
|
ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
|
|
}
|
|
/*
|
|
* Local Variables:
|
|
* c-style: whitesmith
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|