2 * Redistribution and use in source and binary forms, with or without
3 * modification, are permitted provided that: (1) source code
4 * distributions retain the above copyright notice and this paragraph
5 * in its entirety, and (2) distributions including binary code include
6 * the above copyright notice and this paragraph in its entirety in
7 * the documentation or other materials provided with the distribution.
8 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND
9 * WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT
10 * LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
11 * FOR A PARTICULAR PURPOSE.
13 * Original code by Hannes Gredler (hannes@juniper.net)
17 static const char rcsid
[] _U_
=
18 "@(#) $Header: /tcpdump/master/tcpdump/print-lspping.c,v 1.20 2008-01-28 14:20:43 hannes Exp $";
25 #include <tcpdump-stdinc.h>
31 #include "interface.h"
33 #include "addrtoname.h"
40 * LSPPING common header
43 * 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
44 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
45 * | Version Number | Must Be Zero |
46 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
47 * | Message Type | Reply mode | Return Code | Return Subcode|
48 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
50 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
52 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
53 * | TimeStamp Sent (seconds) |
54 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
55 * | TimeStamp Sent (microseconds) |
56 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
57 * | TimeStamp Received (seconds) |
58 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
59 * | TimeStamp Received (microseconds) |
60 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
67 struct lspping_common_header
{
73 u_int8_t return_subcode
;
74 u_int8_t sender_handle
[4];
75 u_int8_t seq_number
[4];
76 u_int8_t ts_sent_sec
[4];
77 u_int8_t ts_sent_usec
[4];
78 u_int8_t ts_rcvd_sec
[4];
79 u_int8_t ts_rcvd_usec
[4];
82 #define LSPPING_VERSION 1
84 static const struct tok lspping_msg_type_values
[] = {
85 { 1, "MPLS Echo Request"},
86 { 2, "MPLS Echo Reply"},
90 static const struct tok lspping_reply_mode_values
[] = {
92 { 2, "Reply via an IPv4/IPv6 UDP packet"},
93 { 3, "Reply via an IPv4/IPv6 UDP packet with Router Alert"},
94 { 4, "Reply via application level control channel"},
98 static const struct tok lspping_return_code_values
[] = {
99 { 0, "No return code or return code contained in the Error Code TLV"},
100 { 1, "Malformed echo request received"},
101 { 2, "One or more of the TLVs was not understood"},
102 { 3, "Replying router is an egress for the FEC at stack depth"},
103 { 4, "Replying router has no mapping for the FEC at stack depth"},
107 { 8, "Label switched at stack-depth"},
108 { 9, "Label switched but no MPLS forwarding at stack-depth"},
109 { 10, "Mapping for this FEC is not the given label at stack depth"},
110 { 11, "No label entry at stack-depth"},
111 { 12, "Protocol not associated with interface at FEC stack depth"},
118 * 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
119 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
121 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
127 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
130 struct lspping_tlv_header
{
135 #define LSPPING_TLV_TARGET_FEC_STACK 1
136 #define LSPPING_TLV_DOWNSTREAM_MAPPING 2
137 #define LSPPING_TLV_PAD 3
138 #define LSPPING_TLV_VENDOR_ENTERPRISE 5
139 #define LSPPING_TLV_VENDOR_ENTERPRISE_LEN 4
140 #define LSPPING_TLV_INTERFACE_LABEL_STACK 7
141 #define LSPPING_TLV_ERROR_CODE 9
142 #define LSPPING_TLV_REPLY_TOS_BYTE 10
143 #define LSPPING_TLV_BFD_DISCRIMINATOR 15 /* draft-ietf-bfd-mpls-02 */
144 #define LSPPING_TLV_BFD_DISCRIMINATOR_LEN 4
145 #define LSPPING_TLV_VENDOR_PRIVATE 0xfc00
147 static const struct tok lspping_tlv_values
[] = {
148 { LSPPING_TLV_TARGET_FEC_STACK
, "Target FEC Stack" },
149 { LSPPING_TLV_DOWNSTREAM_MAPPING
, "Downstream Mapping" },
150 { LSPPING_TLV_PAD
, "Pad" },
151 { LSPPING_TLV_ERROR_CODE
, "Error Code" },
152 { LSPPING_TLV_VENDOR_ENTERPRISE
, "Vendor Enterprise Code" },
153 { LSPPING_TLV_INTERFACE_LABEL_STACK
, "Interface Label Stack" },
154 { LSPPING_TLV_REPLY_TOS_BYTE
, "Reply TOS Byte" },
155 { LSPPING_TLV_BFD_DISCRIMINATOR
, "BFD Discriminator" },
156 { LSPPING_TLV_VENDOR_PRIVATE
, "Vendor Private Code" },
160 #define LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4 1
161 #define LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6 2
162 #define LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4 3
163 #define LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6 4
164 #define LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4 6
165 #define LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6 7
166 #define LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT 8
167 #define LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID_OLD 9
168 #define LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID 10
169 #define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4 11
170 #define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6 12
172 static const struct tok lspping_tlvtargetfec_subtlv_values
[] = {
173 { LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4
, "LDP IPv4 prefix"},
174 { LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6
, "LDP IPv6 prefix"},
175 { LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4
, "RSVP IPv4 Session Query"},
176 { LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6
, "RSVP IPv6 Session Query"},
178 { LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4
, "VPN IPv4 prefix"},
179 { LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6
, "VPN IPv6 prefix"},
180 { LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT
, "L2 VPN endpoint"},
181 { LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID_OLD
, "L2 circuit ID (old)"},
182 { LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID
, "L2 circuit ID"},
183 { LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4
, "BGP labeled IPv4 prefix"},
184 { LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6
, "BGP labeled IPv6 prefix"},
190 * 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
191 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
193 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
194 * | Prefix Length | Must Be Zero |
195 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
197 struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t
{
204 * 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
205 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
210 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
211 * | Prefix Length | Must Be Zero |
212 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
214 struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t
{
215 u_int8_t prefix
[16];
220 * 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
221 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
222 * | Sender identifier |
223 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
225 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
226 * | Prefix Length | Must Be Zero |
227 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
229 struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t
{
230 u_int8_t sender_id
[4];
236 * 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
237 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
238 * | Sender identifier |
242 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
247 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
248 * | Prefix Length | Must Be Zero |
249 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
251 struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t
{
252 u_int8_t sender_id
[16];
253 u_int8_t prefix
[16];
259 * 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
260 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
261 * | IPv4 tunnel end point address |
262 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
263 * | Must Be Zero | Tunnel ID |
264 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
265 * | Extended Tunnel ID |
266 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
267 * | IPv4 tunnel sender address |
268 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
269 * | Must Be Zero | LSP ID |
270 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
272 struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t
{
273 u_int8_t tunnel_endpoint
[4];
275 u_int8_t tunnel_id
[2];
276 u_int8_t extended_tunnel_id
[4];
277 u_int8_t tunnel_sender
[4];
284 * 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
285 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
286 * | IPv6 tunnel end point address |
290 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
291 * | Must Be Zero | Tunnel ID |
292 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
293 * | Extended Tunnel ID |
297 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
298 * | IPv6 tunnel sender address |
302 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
303 * | Must Be Zero | LSP ID |
304 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
306 struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t
{
307 u_int8_t tunnel_endpoint
[16];
309 u_int8_t tunnel_id
[2];
310 u_int8_t extended_tunnel_id
[16];
311 u_int8_t tunnel_sender
[16];
318 * 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
319 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
320 * | Route Distinguisher |
322 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
324 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
325 * | Prefix Length | Must Be Zero |
326 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
328 struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t
{
336 * 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
337 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
338 * | Route Distinguisher |
340 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
345 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
346 * | Prefix Length | Must Be Zero |
347 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
349 struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t
{
351 u_int8_t prefix
[16];
357 * 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
358 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
359 * | Route Distinguisher |
361 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
362 * | Sender's CE ID | Receiver's CE ID |
363 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
364 * | Encapsulation Type | Must Be Zero |
365 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
368 struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t
{
370 u_int8_t sender_ce_id
[2];
371 u_int8_t receiver_ce_id
[2];
372 u_int8_t encapsulation
[2];
376 * 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
377 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
378 * | Remote PE Address |
379 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
381 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
382 * | Encapsulation Type | Must Be Zero |
383 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
385 struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_old_t
{
386 u_int8_t remote_pe_address
[4];
388 u_int8_t encapsulation
[2];
392 * 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
393 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
394 * | Sender's PE Address |
395 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
396 * | Remote PE Address |
397 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
399 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
400 * | Encapsulation Type | Must Be Zero |
401 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
403 struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_t
{
404 u_int8_t sender_pe_address
[4];
405 u_int8_t remote_pe_address
[4];
407 u_int8_t encapsulation
[2];
412 * 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
413 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
414 * | MTU | Address Type | Resvd (SBZ) |
415 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
416 * | Downstream IP Address (4 or 16 octets) |
417 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
418 * | Downstream Interface Address (4 or 16 octets) |
419 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
420 * | Hash Key Type | Depth Limit | Multipath Length |
421 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
423 * . (Multipath Information) .
425 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
426 * | Downstream Label | Protocol |
427 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
431 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
432 * | Downstream Label | Protocol |
433 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
435 struct lspping_tlv_downstream_map_ipv4_t
{
437 u_int8_t address_type
;
439 u_int8_t downstream_ip
[4];
440 u_int8_t downstream_interface
[4];
443 struct lspping_tlv_downstream_map_ipv6_t
{
445 u_int8_t address_type
;
447 u_int8_t downstream_ip
[16];
448 u_int8_t downstream_interface
[16];
451 struct lspping_tlv_downstream_map_info_t
{
452 u_int8_t hash_key_type
;
453 u_int8_t depth_limit
;
454 u_int8_t multipath_length
[2];
457 #define LSPPING_AFI_IPV4 1
458 #define LSPPING_AFI_UNMB 2
459 #define LSPPING_AFI_IPV6 3
461 static const struct tok lspping_tlv_downstream_addr_values
[] = {
462 { LSPPING_AFI_IPV4
, "IPv4"},
463 { LSPPING_AFI_IPV6
, "IPv6"},
464 { LSPPING_AFI_UNMB
, "Unnumbered"},
469 lspping_print(register const u_char
*pptr
, register u_int len
) {
471 const struct lspping_common_header
*lspping_com_header
;
472 const struct lspping_tlv_header
*lspping_tlv_header
;
473 const struct lspping_tlv_header
*lspping_subtlv_header
;
474 const u_char
*tptr
,*tlv_tptr
,*subtlv_tptr
;
475 int tlen
,lspping_tlv_len
,lspping_tlv_type
,tlv_tlen
;
476 int tlv_hexdump
,subtlv_hexdump
;
477 int lspping_subtlv_len
,lspping_subtlv_type
;
478 struct timeval timestamp
;
481 const struct lspping_tlv_downstream_map_ipv4_t
*lspping_tlv_downstream_map_ipv4
;
482 const struct lspping_tlv_downstream_map_ipv6_t
*lspping_tlv_downstream_map_ipv6
;
483 const struct lspping_tlv_downstream_map_info_t
*lspping_tlv_downstream_map_info
;
487 const struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t
*lspping_tlv_targetfec_subtlv_ldp_ipv4
;
488 const struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t
*lspping_tlv_targetfec_subtlv_ldp_ipv6
;
489 const struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t
*lspping_tlv_targetfec_subtlv_rsvp_ipv4
;
490 const struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t
*lspping_tlv_targetfec_subtlv_rsvp_ipv6
;
491 const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t
*lspping_tlv_targetfec_subtlv_l3vpn_ipv4
;
492 const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t
*lspping_tlv_targetfec_subtlv_l3vpn_ipv6
;
493 const struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t
*lspping_tlv_targetfec_subtlv_l2vpn_endpt
;
494 const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_old_t
*lspping_tlv_targetfec_subtlv_l2vpn_vcid_old
;
495 const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_t
*lspping_tlv_targetfec_subtlv_l2vpn_vcid
;
496 const struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t
*lspping_tlv_targetfec_subtlv_bgp_ipv4
;
497 const struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t
*lspping_tlv_targetfec_subtlv_bgp_ipv6
;
501 lspping_com_header
= (const struct lspping_common_header
*)pptr
;
502 TCHECK(*lspping_com_header
);
505 * Sanity checking of the header.
507 if (EXTRACT_16BITS(&lspping_com_header
->version
[0]) != LSPPING_VERSION
) {
508 printf("LSP-PING version %u packet not supported",
509 EXTRACT_16BITS(&lspping_com_header
->version
[0]));
513 /* in non-verbose mode just lets print the basic Message Type*/
515 printf("LSP-PINGv%u, %s, seq %u, length: %u",
516 EXTRACT_16BITS(&lspping_com_header
->version
[0]),
517 tok2str(lspping_msg_type_values
, "unknown (%u)",lspping_com_header
->msg_type
),
518 EXTRACT_32BITS(lspping_com_header
->seq_number
),
523 /* ok they seem to want to know everything - lets fully decode it */
527 printf("\n\tLSP-PINGv%u, msg-type: %s (%u), length: %u\n\t reply-mode: %s (%u)",
528 EXTRACT_16BITS(&lspping_com_header
->version
[0]),
529 tok2str(lspping_msg_type_values
, "unknown",lspping_com_header
->msg_type
),
530 lspping_com_header
->msg_type
,
532 tok2str(lspping_reply_mode_values
, "unknown",lspping_com_header
->reply_mode
),
533 lspping_com_header
->reply_mode
);
536 * the following return codes require that the subcode is attached
537 * at the end of the translated token output
539 if (lspping_com_header
->return_code
== 3 ||
540 lspping_com_header
->return_code
== 4 ||
541 lspping_com_header
->return_code
== 8 ||
542 lspping_com_header
->return_code
== 10 ||
543 lspping_com_header
->return_code
== 11 ||
544 lspping_com_header
->return_code
== 12 )
545 printf("\n\t Return Code: %s %u (%u)\n\t Return Subcode: (%u)",
546 tok2str(lspping_return_code_values
, "unknown",lspping_com_header
->return_code
),
547 lspping_com_header
->return_subcode
,
548 lspping_com_header
->return_code
,
549 lspping_com_header
->return_subcode
);
551 printf("\n\t Return Code: %s (%u)\n\t Return Subcode: (%u)",
552 tok2str(lspping_return_code_values
, "unknown",lspping_com_header
->return_code
),
553 lspping_com_header
->return_code
,
554 lspping_com_header
->return_subcode
);
556 printf("\n\t Sender Handle: 0x%08x, Sequence: %u",
557 EXTRACT_32BITS(lspping_com_header
->sender_handle
),
558 EXTRACT_32BITS(lspping_com_header
->seq_number
));
560 timestamp
.tv_sec
=EXTRACT_32BITS(lspping_com_header
->ts_sent_sec
);
561 timestamp
.tv_usec
=EXTRACT_32BITS(lspping_com_header
->ts_sent_usec
);
562 printf("\n\t Sender Timestamp: ");
563 ts_print(×tamp
);
565 timestamp
.tv_sec
=EXTRACT_32BITS(lspping_com_header
->ts_rcvd_sec
);
566 timestamp
.tv_usec
=EXTRACT_32BITS(lspping_com_header
->ts_rcvd_usec
);
567 printf("Receiver Timestamp: ");
568 if ((timestamp
.tv_sec
!= 0) && (timestamp
.tv_usec
!= 0))
569 ts_print(×tamp
);
571 printf("no timestamp");
573 tptr
+=sizeof(const struct lspping_common_header
);
574 tlen
-=sizeof(const struct lspping_common_header
);
576 while(tlen
>(int)sizeof(struct lspping_tlv_header
)) {
578 /* did we capture enough for fully decoding the tlv header ? */
579 if (!TTEST2(*tptr
, sizeof(struct lspping_tlv_header
)))
582 lspping_tlv_header
= (const struct lspping_tlv_header
*)tptr
;
583 lspping_tlv_type
=EXTRACT_16BITS(lspping_tlv_header
->type
);
584 lspping_tlv_len
=EXTRACT_16BITS(lspping_tlv_header
->length
);
586 /* some little sanity checking */
587 if (lspping_tlv_type
== 0 || lspping_tlv_len
== 0)
590 if(lspping_tlv_len
< 4) {
591 printf("\n\t ERROR: TLV %u bogus size %u",lspping_tlv_type
,lspping_tlv_len
);
595 printf("\n\t %s TLV (%u), length: %u",
596 tok2str(lspping_tlv_values
,
602 tlv_tptr
=tptr
+sizeof(struct lspping_tlv_header
);
603 tlv_tlen
=lspping_tlv_len
; /* header not included -> no adjustment */
605 /* did we capture enough for fully decoding the tlv ? */
606 if (!TTEST2(*tptr
, lspping_tlv_len
))
610 switch(lspping_tlv_type
) {
611 case LSPPING_TLV_TARGET_FEC_STACK
:
612 while(tlv_tlen
>(int)sizeof(struct lspping_tlv_header
)) {
614 /* did we capture enough for fully decoding the subtlv header ? */
615 if (!TTEST2(*tptr
, sizeof(struct lspping_tlv_header
)))
617 subtlv_hexdump
=FALSE
;
619 lspping_subtlv_header
= (const struct lspping_tlv_header
*)tlv_tptr
;
620 lspping_subtlv_type
=EXTRACT_16BITS(lspping_subtlv_header
->type
);
621 lspping_subtlv_len
=EXTRACT_16BITS(lspping_subtlv_header
->length
);
622 subtlv_tptr
=tlv_tptr
+sizeof(struct lspping_tlv_header
);
624 if (lspping_subtlv_len
== 0)
627 printf("\n\t %s subTLV (%u), length: %u",
628 tok2str(lspping_tlvtargetfec_subtlv_values
,
630 lspping_subtlv_type
),
634 switch(lspping_subtlv_type
) {
636 case LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4
:
637 subtlv_ptr
.lspping_tlv_targetfec_subtlv_ldp_ipv4
= \
638 (const struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t
*)subtlv_tptr
;
640 ipaddr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_ldp_ipv4
->prefix
),
641 subtlv_ptr
.lspping_tlv_targetfec_subtlv_ldp_ipv4
->prefix_len
);
645 case LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6
:
646 subtlv_ptr
.lspping_tlv_targetfec_subtlv_ldp_ipv6
= \
647 (const struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t
*)subtlv_tptr
;
649 ip6addr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_ldp_ipv6
->prefix
),
650 subtlv_ptr
.lspping_tlv_targetfec_subtlv_ldp_ipv6
->prefix_len
);
654 case LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4
:
655 subtlv_ptr
.lspping_tlv_targetfec_subtlv_bgp_ipv4
= \
656 (const struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t
*)subtlv_tptr
;
657 printf("\n\t %s/%u, sender-id %s",
658 ipaddr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_bgp_ipv4
->prefix
),
659 subtlv_ptr
.lspping_tlv_targetfec_subtlv_bgp_ipv4
->prefix_len
,
660 ipaddr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_bgp_ipv4
->sender_id
));
664 case LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6
:
665 subtlv_ptr
.lspping_tlv_targetfec_subtlv_bgp_ipv6
= \
666 (const struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t
*)subtlv_tptr
;
667 printf("\n\t %s/%u, sender-id %s",
668 ip6addr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_bgp_ipv6
->prefix
),
669 subtlv_ptr
.lspping_tlv_targetfec_subtlv_bgp_ipv6
->prefix_len
,
670 ip6addr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_bgp_ipv6
->sender_id
));
674 case LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4
:
675 subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv4
= \
676 (const struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t
*)subtlv_tptr
;
677 printf("\n\t tunnel end-point %s, tunnel sender %s, lsp-id 0x%04x" \
678 "\n\t tunnel-id 0x%04x, extended tunnel-id %s",
679 ipaddr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv4
->tunnel_endpoint
),
680 ipaddr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv4
->tunnel_sender
),
681 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv4
->lsp_id
),
682 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv4
->tunnel_id
),
683 ipaddr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv4
->extended_tunnel_id
));
687 case LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6
:
688 subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv6
= \
689 (const struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t
*)subtlv_tptr
;
690 printf("\n\t tunnel end-point %s, tunnel sender %s, lsp-id 0x%04x" \
691 "\n\t tunnel-id 0x%04x, extended tunnel-id %s",
692 ip6addr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv6
->tunnel_endpoint
),
693 ip6addr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv6
->tunnel_sender
),
694 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv6
->lsp_id
),
695 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv6
->tunnel_id
),
696 ip6addr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_rsvp_ipv6
->extended_tunnel_id
));
700 case LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4
:
701 subtlv_ptr
.lspping_tlv_targetfec_subtlv_l3vpn_ipv4
= \
702 (const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t
*)subtlv_tptr
;
703 printf("\n\t RD: %s, %s/%u",
704 bgp_vpn_rd_print(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l3vpn_ipv4
->rd
),
705 ipaddr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l3vpn_ipv4
->prefix
),
706 subtlv_ptr
.lspping_tlv_targetfec_subtlv_l3vpn_ipv4
->prefix_len
);
710 case LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6
:
711 subtlv_ptr
.lspping_tlv_targetfec_subtlv_l3vpn_ipv6
= \
712 (const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t
*)subtlv_tptr
;
713 printf("\n\t RD: %s, %s/%u",
714 bgp_vpn_rd_print(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l3vpn_ipv6
->rd
),
715 ip6addr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l3vpn_ipv6
->prefix
),
716 subtlv_ptr
.lspping_tlv_targetfec_subtlv_l3vpn_ipv6
->prefix_len
);
720 case LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT
:
721 subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_endpt
= \
722 (const struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t
*)subtlv_tptr
;
723 printf("\n\t RD: %s, Sender CE-ID: %u, Receiver CE-ID: %u" \
724 "\n\t Encapsulation Type: %s (%u)",
725 bgp_vpn_rd_print(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_endpt
->rd
),
726 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_endpt
->sender_ce_id
),
727 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_endpt
->receiver_ce_id
),
728 tok2str(l2vpn_encaps_values
,
730 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_endpt
->encapsulation
)),
731 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_endpt
->encapsulation
));
735 /* the old L2VPN VCID subTLV does not have support for the sender field */
736 case LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID_OLD
:
737 subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old
= \
738 (const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_old_t
*)subtlv_tptr
;
739 printf("\n\t Remote PE: %s" \
740 "\n\t VC-ID: 0x%08x, Encapsulation Type: %s (%u)",
741 ipaddr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old
->remote_pe_address
),
742 EXTRACT_32BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old
->vc_id
),
743 tok2str(l2vpn_encaps_values
,
745 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old
->encapsulation
)),
746 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old
->encapsulation
));
750 case LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_VCID
:
751 subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid
= \
752 (const struct lspping_tlv_targetfec_subtlv_l2vpn_vcid_t
*)subtlv_tptr
;
753 printf("\n\t Sender PE: %s, Remote PE: %s" \
754 "\n\t VC-ID: 0x%08x, Encapsulation Type: %s (%u)",
755 ipaddr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid
->sender_pe_address
),
756 ipaddr_string(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid
->remote_pe_address
),
757 EXTRACT_32BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid
->vc_id
),
758 tok2str(l2vpn_encaps_values
,
760 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid
->encapsulation
)),
761 EXTRACT_16BITS(subtlv_ptr
.lspping_tlv_targetfec_subtlv_l2vpn_vcid
->encapsulation
));
766 subtlv_hexdump
=TRUE
; /* unknown subTLV just hexdump it */
769 /* do we want to see an additionally subtlv hexdump ? */
770 if (vflag
> 1 || subtlv_hexdump
==TRUE
)
771 print_unknown_data(tlv_tptr
+sizeof(struct lspping_tlv_header
), \
775 tlv_tptr
+=lspping_subtlv_len
;
776 tlv_tlen
-=lspping_subtlv_len
+sizeof(struct lspping_tlv_header
);
780 case LSPPING_TLV_DOWNSTREAM_MAPPING
:
781 /* that strange thing with the downstream map TLV is that until now
782 * we do not know if its IPv4 or IPv6 , after we found the adress-type
783 * lets recast the tlv_tptr and move on */
785 tlv_ptr
.lspping_tlv_downstream_map_ipv4
= \
786 (const struct lspping_tlv_downstream_map_ipv4_t
*)tlv_tptr
;
787 tlv_ptr
.lspping_tlv_downstream_map_ipv6
= \
788 (const struct lspping_tlv_downstream_map_ipv6_t
*)tlv_tptr
;
789 printf("\n\t MTU: %u, Address-Type: %s (%u)",
790 EXTRACT_16BITS(tlv_ptr
.lspping_tlv_downstream_map_ipv4
->mtu
),
791 tok2str(lspping_tlv_downstream_addr_values
,
793 tlv_ptr
.lspping_tlv_downstream_map_ipv4
->address_type
),
794 tlv_ptr
.lspping_tlv_downstream_map_ipv4
->address_type
);
796 switch(tlv_ptr
.lspping_tlv_downstream_map_ipv4
->address_type
) {
798 case LSPPING_AFI_IPV4
:
799 printf("\n\t Downstream IP: %s" \
800 "\n\t Downstream Interface IP: %s",
801 ipaddr_string(tlv_ptr
.lspping_tlv_downstream_map_ipv4
->downstream_ip
),
802 ipaddr_string(tlv_ptr
.lspping_tlv_downstream_map_ipv4
->downstream_interface
));
803 tlv_tptr
+=sizeof(struct lspping_tlv_downstream_map_ipv4_t
);
804 tlv_tlen
-=sizeof(struct lspping_tlv_downstream_map_ipv4_t
);
807 case LSPPING_AFI_IPV6
:
808 printf("\n\t Downstream IP: %s" \
809 "\n\t Downstream Interface IP: %s",
810 ip6addr_string(tlv_ptr
.lspping_tlv_downstream_map_ipv6
->downstream_ip
),
811 ip6addr_string(tlv_ptr
.lspping_tlv_downstream_map_ipv6
->downstream_interface
));
812 tlv_tptr
+=sizeof(struct lspping_tlv_downstream_map_ipv6_t
);
813 tlv_tlen
-=sizeof(struct lspping_tlv_downstream_map_ipv6_t
);
816 case LSPPING_AFI_UNMB
:
817 printf("\n\t Downstream IP: %s" \
818 "\n\t Downstream Interface Index: 0x%08x",
819 ipaddr_string(tlv_ptr
.lspping_tlv_downstream_map_ipv4
->downstream_ip
),
820 EXTRACT_32BITS(tlv_ptr
.lspping_tlv_downstream_map_ipv4
->downstream_interface
));
821 tlv_tptr
+=sizeof(struct lspping_tlv_downstream_map_ipv4_t
);
822 tlv_tlen
-=sizeof(struct lspping_tlv_downstream_map_ipv4_t
);
826 /* should not happen ! - no error message - tok2str() has barked already */
830 tlv_ptr
.lspping_tlv_downstream_map_info
= \
831 (const struct lspping_tlv_downstream_map_info_t
*)tlv_tptr
;
833 /* FIXME add hash-key type, depth limit, multipath processing */
836 tlv_tptr
+=sizeof(struct lspping_tlv_downstream_map_info_t
);
837 tlv_tlen
-=sizeof(struct lspping_tlv_downstream_map_info_t
);
839 /* FIXME print downstream labels */
842 tlv_hexdump
=TRUE
; /* dump the TLV until code complete */
846 case LSPPING_TLV_BFD_DISCRIMINATOR
:
847 tptr
+= sizeof(struct lspping_tlv_header
);
848 if (!TTEST2(*tptr
, LSPPING_TLV_BFD_DISCRIMINATOR_LEN
))
850 printf("\n\t BFD Discriminator 0x%08x", EXTRACT_32BITS(tptr
));
853 case LSPPING_TLV_VENDOR_ENTERPRISE
:
857 if (!TTEST2(*tptr
, LSPPING_TLV_VENDOR_ENTERPRISE_LEN
))
859 vendor_id
= EXTRACT_32BITS(tlv_tptr
);
860 printf("\n\t Vendor: %s (0x%04x)",
861 tok2str(smi_values
, "Unknown", vendor_id
),
867 * FIXME those are the defined TLVs that lack a decoder
868 * you are welcome to contribute code ;-)
870 case LSPPING_TLV_PAD
:
871 case LSPPING_TLV_ERROR_CODE
:
872 case LSPPING_TLV_VENDOR_PRIVATE
:
876 print_unknown_data(tlv_tptr
,"\n\t ",tlv_tlen
);
879 /* do we want to see an additionally tlv hexdump ? */
880 if (vflag
> 1 || tlv_hexdump
==TRUE
)
881 print_unknown_data(tptr
+sizeof(struct lspping_tlv_header
),"\n\t ",
885 /* All TLVs are aligned to four octet boundary */
886 if (lspping_tlv_len
% 4) {
887 lspping_tlv_len
+= (4 - lspping_tlv_len
% 4);
890 tptr
+=lspping_tlv_len
+sizeof(struct lspping_tlv_header
);
891 tlen
-=lspping_tlv_len
+sizeof(struct lspping_tlv_header
);
895 printf("\n\t\t packet exceeded snapshot");