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@gredler.at)
16 /* \summary: MPLS LSP PING printer */
18 /* specification: RFC 4379 */
24 #include "netdissect-stdinc.h"
26 #define ND_LONGJMP_FROM_TCHECK
27 #include "netdissect.h"
29 #include "addrtoname.h"
37 * LSPPING common header
40 * 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
41 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
42 * | Version Number | Must Be Zero |
43 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
44 * | Message Type | Reply mode | Return Code | Return Subcode|
45 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
47 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
49 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
50 * | TimeStamp Sent (seconds) |
51 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
52 * | TimeStamp Sent (microseconds) |
53 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
54 * | TimeStamp Received (seconds) |
55 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
56 * | TimeStamp Received (microseconds) |
57 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
64 struct lspping_common_header {
66 nd_uint16_t global_flags;
68 nd_uint8_t reply_mode;
69 nd_uint8_t return_code;
70 nd_uint8_t return_subcode;
71 nd_uint32_t sender_handle;
72 nd_uint32_t seq_number;
73 struct l_fixedpt ts_sent;
74 struct l_fixedpt ts_rcvd;
77 #define LSPPING_VERSION 1
79 static const struct tok lspping_msg_type_values[] = {
80 { 1, "MPLS Echo Request"},
81 { 2, "MPLS Echo Reply"},
85 static const struct tok lspping_reply_mode_values[] = {
87 { 2, "Reply via an IPv4/IPv6 UDP packet"},
88 { 3, "Reply via an IPv4/IPv6 UDP packet with Router Alert"},
89 { 4, "Reply via application level control channel"},
93 static const struct tok lspping_return_code_values[] = {
94 { 0, "No return code or return code contained in the Error Code TLV"},
95 { 1, "Malformed echo request received"},
96 { 2, "One or more of the TLVs was not understood"},
97 { 3, "Replying router is an egress for the FEC at stack depth"},
98 { 4, "Replying router has no mapping for the FEC at stack depth"},
102 { 8, "Label switched at stack-depth"},
103 { 9, "Label switched but no MPLS forwarding at stack-depth"},
104 { 10, "Mapping for this FEC is not the given label at stack depth"},
105 { 11, "No label entry at stack-depth"},
106 { 12, "Protocol not associated with interface at FEC stack depth"},
107 { 13, "Premature termination of ping due to label stack shrinking to a single label"},
115 * 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
116 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
118 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
124 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
127 struct lspping_tlv_header {
132 #define LSPPING_TLV_TARGET_FEC_STACK 1
133 #define LSPPING_TLV_DOWNSTREAM_MAPPING 2
134 #define LSPPING_TLV_PAD 3
136 #define LSPPING_TLV_VENDOR_ENTERPRISE 5
137 #define LSPPING_TLV_VENDOR_ENTERPRISE_LEN 4
139 #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
165 #define LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4 6
166 #define LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6 7
167 #define LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT 8
168 #define LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW_OLD 9
169 #define LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW 10
170 #define LSPPING_TLV_TARGETFEC_SUBTLV_FEC_129_PW 11
171 #define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4 12
172 #define LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6 13
173 #define LSPPING_TLV_TARGETFEC_SUBTLV_GENERIC_IPV4 14
174 #define LSPPING_TLV_TARGETFEC_SUBTLV_GENERIC_IPV6 15
175 #define LSPPING_TLV_TARGETFEC_SUBTLV_NIL_FEC 16
177 static const struct tok lspping_tlvtargetfec_subtlv_values[] = {
178 { LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4, "LDP IPv4 prefix"},
179 { LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6, "LDP IPv6 prefix"},
180 { LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4, "RSVP IPv4 Session Query"},
181 { LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6, "RSVP IPv6 Session Query"},
183 { LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4, "VPN IPv4 prefix"},
184 { LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6, "VPN IPv6 prefix"},
185 { LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT, "L2 VPN endpoint"},
186 { LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW_OLD, "FEC 128 pseudowire (old)"},
187 { LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW, "FEC 128 pseudowire"},
188 { LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4, "BGP labeled IPv4 prefix"},
189 { LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6, "BGP labeled IPv6 prefix"},
195 * 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
196 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
198 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
199 * | Prefix Length | Must Be Zero |
200 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
202 struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t {
204 nd_uint8_t prefix_len;
209 * 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
210 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
215 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
216 * | Prefix Length | Must Be Zero |
217 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
219 struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t {
221 nd_uint8_t prefix_len;
226 * 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
227 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
228 * | IPv4 tunnel end point address |
229 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
230 * | Must Be Zero | Tunnel ID |
231 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
232 * | Extended Tunnel ID |
233 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
234 * | IPv4 tunnel sender address |
235 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
236 * | Must Be Zero | LSP ID |
237 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
239 struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t {
240 nd_ipv4 tunnel_endpoint;
242 nd_uint16_t tunnel_id;
243 nd_ipv4 extended_tunnel_id;
244 nd_ipv4 tunnel_sender;
251 * 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
252 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
253 * | IPv6 tunnel end point address |
257 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
258 * | Must Be Zero | Tunnel ID |
259 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
260 * | Extended Tunnel ID |
264 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
265 * | IPv6 tunnel sender address |
269 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
270 * | Must Be Zero | LSP ID |
271 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
273 struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t {
274 nd_ipv6 tunnel_endpoint;
276 nd_uint16_t tunnel_id;
277 nd_ipv6 extended_tunnel_id;
278 nd_ipv6 tunnel_sender;
285 * 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
286 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
287 * | Route Distinguisher |
289 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
291 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
292 * | Prefix Length | Must Be Zero |
293 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
295 struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t {
298 nd_uint8_t prefix_len;
303 * 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
304 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
305 * | Route Distinguisher |
307 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
312 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
313 * | Prefix Length | Must Be Zero |
314 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
316 struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t {
319 nd_uint8_t prefix_len;
324 * 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
325 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
326 * | Route Distinguisher |
328 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
329 * | Sender's VE ID | Receiver's VE ID |
330 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
331 * | Encapsulation Type | Must Be Zero |
332 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
335 struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t {
337 nd_uint16_t sender_ve_id;
338 nd_uint16_t receiver_ve_id;
339 nd_uint16_t encapsulation;
343 * 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
344 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
345 * | Remote PE Address |
346 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
348 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
349 * | PW Type | Must Be Zero |
350 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
352 struct lspping_tlv_targetfec_subtlv_fec_128_pw_old {
353 nd_ipv4 remote_pe_address;
359 * 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
360 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
361 * | Sender's PE Address |
362 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
363 * | Remote PE Address |
364 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
366 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
367 * | PW Type | Must Be Zero |
368 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
370 struct lspping_tlv_targetfec_subtlv_fec_128_pw {
371 nd_ipv4 sender_pe_address;
372 nd_ipv4 remote_pe_address;
378 * 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
379 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
381 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
382 * | Prefix Length | Must Be Zero |
383 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
385 struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t {
387 nd_uint8_t prefix_len;
391 * 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
392 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
397 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
398 * | Prefix Length | Must Be Zero |
399 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
401 struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t {
403 nd_uint8_t prefix_len;
408 * 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
409 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
410 * | MTU | Address Type | Resvd (SBZ) |
411 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
412 * | Downstream IP Address (4 or 16 octets) |
413 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
414 * | Downstream Interface Address (4 or 16 octets) |
415 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
416 * | Multipath Type| Depth Limit | Multipath Length |
417 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
419 * . (Multipath Information) .
421 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
422 * | Downstream Label | Protocol |
423 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
427 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
428 * | Downstream Label | Protocol |
429 * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
431 /* Enough to get the address type */
432 struct lspping_tlv_downstream_map_t {
434 nd_uint8_t address_type;
438 struct lspping_tlv_downstream_map_ipv4_t {
440 nd_uint8_t address_type;
442 nd_ipv4 downstream_ip;
443 nd_ipv4 downstream_interface;
446 struct lspping_tlv_downstream_map_ipv4_unmb_t {
448 nd_uint8_t address_type;
450 nd_ipv4 downstream_ip;
451 nd_uint32_t downstream_interface;
454 struct lspping_tlv_downstream_map_ipv6_t {
456 nd_uint8_t address_type;
458 nd_ipv6 downstream_ip;
459 nd_ipv6 downstream_interface;
462 struct lspping_tlv_downstream_map_ipv6_unmb_t {
464 nd_uint8_t address_type;
466 nd_ipv6 downstream_ip;
467 nd_uint32_t downstream_interface;
470 struct lspping_tlv_downstream_map_info_t {
471 nd_uint8_t multipath_type;
472 nd_uint8_t depth_limit;
473 nd_uint16_t multipath_length;
476 #define LSPPING_AFI_IPV4 1
477 #define LSPPING_AFI_IPV4_UNMB 2
478 #define LSPPING_AFI_IPV6 3
479 #define LSPPING_AFI_IPV6_UNMB 4
481 static const struct tok lspping_tlv_downstream_addr_values[] = {
482 { LSPPING_AFI_IPV4, "IPv4"},
483 { LSPPING_AFI_IPV4_UNMB, "Unnumbered IPv4"},
484 { LSPPING_AFI_IPV6, "IPv6"},
485 { LSPPING_AFI_IPV6_UNMB, "IPv6"},
490 lspping_print(netdissect_options *ndo,
491 const u_char *pptr, u_int len)
493 const struct lspping_common_header *lspping_com_header;
494 const struct lspping_tlv_header *lspping_tlv_header;
495 const struct lspping_tlv_header *lspping_subtlv_header;
496 const u_char *tptr,*tlv_tptr,*subtlv_tptr;
497 u_int return_code, return_subcode;
498 u_int tlen,lspping_tlv_len,lspping_tlv_type,tlv_tlen;
499 int tlv_hexdump,subtlv_hexdump;
500 u_int lspping_subtlv_len,lspping_subtlv_type;
501 uint32_t int_part, fraction;
505 const struct lspping_tlv_downstream_map_t *lspping_tlv_downstream_map;
506 const struct lspping_tlv_downstream_map_ipv4_t *lspping_tlv_downstream_map_ipv4;
507 const struct lspping_tlv_downstream_map_ipv4_unmb_t *lspping_tlv_downstream_map_ipv4_unmb;
508 const struct lspping_tlv_downstream_map_ipv6_t *lspping_tlv_downstream_map_ipv6;
509 const struct lspping_tlv_downstream_map_ipv6_unmb_t *lspping_tlv_downstream_map_ipv6_unmb;
510 const struct lspping_tlv_downstream_map_info_t *lspping_tlv_downstream_map_info;
514 const struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t *lspping_tlv_targetfec_subtlv_ldp_ipv4;
515 const struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t *lspping_tlv_targetfec_subtlv_ldp_ipv6;
516 const struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t *lspping_tlv_targetfec_subtlv_rsvp_ipv4;
517 const struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t *lspping_tlv_targetfec_subtlv_rsvp_ipv6;
518 const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t *lspping_tlv_targetfec_subtlv_l3vpn_ipv4;
519 const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t *lspping_tlv_targetfec_subtlv_l3vpn_ipv6;
520 const struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t *lspping_tlv_targetfec_subtlv_l2vpn_endpt;
521 const struct lspping_tlv_targetfec_subtlv_fec_128_pw_old *lspping_tlv_targetfec_subtlv_l2vpn_vcid_old;
522 const struct lspping_tlv_targetfec_subtlv_fec_128_pw *lspping_tlv_targetfec_subtlv_l2vpn_vcid;
523 const struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t *lspping_tlv_targetfec_subtlv_bgp_ipv4;
524 const struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t *lspping_tlv_targetfec_subtlv_bgp_ipv6;
527 ndo->ndo_protocol = "lspping";
529 lspping_com_header = (const struct lspping_common_header *)pptr;
530 if (len < sizeof(struct lspping_common_header))
532 ND_TCHECK_SIZE(lspping_com_header);
535 * Sanity checking of the header.
537 if (GET_BE_U_2(lspping_com_header->version) != LSPPING_VERSION) {
538 ND_PRINT("LSP-PING version %u packet not supported",
539 GET_BE_U_2(lspping_com_header->version));
543 /* in non-verbose mode just lets print the basic Message Type*/
544 if (ndo->ndo_vflag < 1) {
545 ND_PRINT("LSP-PINGv%u, %s, seq %u, length: %u",
546 GET_BE_U_2(lspping_com_header->version),
547 tok2str(lspping_msg_type_values, "unknown (%u)",GET_U_1(lspping_com_header->msg_type)),
548 GET_BE_U_4(lspping_com_header->seq_number),
553 /* ok they seem to want to know everything - lets fully decode it */
557 ND_PRINT("\n\tLSP-PINGv%u, msg-type: %s (%u), length: %u\n\t reply-mode: %s (%u)",
558 GET_BE_U_2(lspping_com_header->version),
559 tok2str(lspping_msg_type_values, "unknown",GET_U_1(lspping_com_header->msg_type)),
560 GET_U_1(lspping_com_header->msg_type),
562 tok2str(lspping_reply_mode_values, "unknown",GET_U_1(lspping_com_header->reply_mode)),
563 GET_U_1(lspping_com_header->reply_mode));
566 * the following return codes require that the subcode is attached
567 * at the end of the translated token output
569 return_code = GET_U_1(lspping_com_header->return_code);
570 return_subcode = GET_U_1(lspping_com_header->return_subcode);
571 if (return_code == 3 ||
577 ND_PRINT("\n\t Return Code: %s %u (%u)\n\t Return Subcode: (%u)",
578 tok2str(lspping_return_code_values, "unknown",return_code),
583 ND_PRINT("\n\t Return Code: %s (%u)\n\t Return Subcode: (%u)",
584 tok2str(lspping_return_code_values, "unknown",return_code),
588 ND_PRINT("\n\t Sender Handle: 0x%08x, Sequence: %u",
589 GET_BE_U_4(lspping_com_header->sender_handle),
590 GET_BE_U_4(lspping_com_header->seq_number));
592 ND_PRINT("\n\t Sender Timestamp: ");
593 p_ntp_time(ndo, &lspping_com_header->ts_sent);
596 int_part=GET_BE_U_4(lspping_com_header->ts_rcvd.int_part);
597 fraction=GET_BE_U_4(lspping_com_header->ts_rcvd.fraction);
598 ND_PRINT("Receiver Timestamp: ");
599 if (! (int_part == 0 && fraction == 0))
600 p_ntp_time(ndo, &lspping_com_header->ts_rcvd);
602 ND_PRINT("no timestamp");
604 tptr+=sizeof(struct lspping_common_header);
605 tlen-=sizeof(struct lspping_common_header);
608 /* Does the TLV go past the end of the packet? */
609 if (tlen < sizeof(struct lspping_tlv_header))
612 lspping_tlv_header = (const struct lspping_tlv_header *)tptr;
613 lspping_tlv_type=GET_BE_U_2(lspping_tlv_header->type);
614 lspping_tlv_len=GET_BE_U_2(lspping_tlv_header->length);
616 ND_PRINT("\n\t %s TLV (%u), length: %u",
617 tok2str(lspping_tlv_values,
623 /* some little sanity checking */
624 if (lspping_tlv_len == 0) {
625 tptr+=sizeof(struct lspping_tlv_header);
626 tlen-=sizeof(struct lspping_tlv_header);
627 continue; /* no value to dissect */
630 tlv_tptr=tptr+sizeof(struct lspping_tlv_header);
631 tlv_tlen=lspping_tlv_len; /* header not included -> no adjustment */
633 /* Does the TLV go past the end of the packet? */
634 if (tlen < lspping_tlv_len+sizeof(struct lspping_tlv_header))
636 /* did we capture enough for fully decoding the tlv ? */
637 ND_TCHECK_LEN(tlv_tptr, lspping_tlv_len);
640 switch(lspping_tlv_type) {
641 case LSPPING_TLV_TARGET_FEC_STACK:
642 while (tlv_tlen != 0) {
643 /* Does the subTLV header go past the end of the TLV? */
644 if (tlv_tlen < sizeof(struct lspping_tlv_header)) {
645 ND_PRINT("\n\t TLV is too short");
649 subtlv_hexdump=FALSE;
651 lspping_subtlv_header = (const struct lspping_tlv_header *)tlv_tptr;
652 lspping_subtlv_type=GET_BE_U_2(lspping_subtlv_header->type);
653 lspping_subtlv_len=GET_BE_U_2(lspping_subtlv_header->length);
654 subtlv_tptr=tlv_tptr+sizeof(struct lspping_tlv_header);
656 /* Does the subTLV go past the end of the TLV? */
657 if (tlv_tlen < lspping_subtlv_len+sizeof(struct lspping_tlv_header)) {
658 ND_PRINT("\n\t TLV is too short");
663 /* Did we capture enough for fully decoding the subTLV? */
664 ND_TCHECK_LEN(subtlv_tptr, lspping_subtlv_len);
666 ND_PRINT("\n\t %s subTLV (%u), length: %u",
667 tok2str(lspping_tlvtargetfec_subtlv_values,
669 lspping_subtlv_type),
673 switch(lspping_subtlv_type) {
675 case LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV4:
676 /* Is the subTLV length correct? */
677 if (lspping_subtlv_len != 5) {
678 ND_PRINT("\n\t invalid subTLV length, should be 5");
679 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
681 subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv4 =
682 (const struct lspping_tlv_targetfec_subtlv_ldp_ipv4_t *)subtlv_tptr;
683 ND_PRINT("\n\t %s/%u",
684 GET_IPADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv4->prefix),
685 GET_U_1(subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv4->prefix_len));
689 case LSPPING_TLV_TARGETFEC_SUBTLV_LDP_IPV6:
690 /* Is the subTLV length correct? */
691 if (lspping_subtlv_len != 17) {
692 ND_PRINT("\n\t invalid subTLV length, should be 17");
693 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
695 subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv6 =
696 (const struct lspping_tlv_targetfec_subtlv_ldp_ipv6_t *)subtlv_tptr;
697 ND_PRINT("\n\t %s/%u",
698 GET_IP6ADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv6->prefix),
699 GET_U_1(subtlv_ptr.lspping_tlv_targetfec_subtlv_ldp_ipv6->prefix_len));
703 case LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV4:
704 /* Is the subTLV length correct? */
705 if (lspping_subtlv_len != 5) {
706 ND_PRINT("\n\t invalid subTLV length, should be 5");
707 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
709 subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv4 =
710 (const struct lspping_tlv_targetfec_subtlv_bgp_ipv4_t *)subtlv_tptr;
711 ND_PRINT("\n\t %s/%u",
712 GET_IPADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv4->prefix),
713 GET_U_1(subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv4->prefix_len));
717 case LSPPING_TLV_TARGETFEC_SUBTLV_BGP_IPV6:
718 /* Is the subTLV length correct? */
719 if (lspping_subtlv_len != 17) {
720 ND_PRINT("\n\t invalid subTLV length, should be 17");
721 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
723 subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv6 =
724 (const struct lspping_tlv_targetfec_subtlv_bgp_ipv6_t *)subtlv_tptr;
725 ND_PRINT("\n\t %s/%u",
726 GET_IP6ADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv6->prefix),
727 GET_U_1(subtlv_ptr.lspping_tlv_targetfec_subtlv_bgp_ipv6->prefix_len));
731 case LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV4:
732 /* Is the subTLV length correct? */
733 if (lspping_subtlv_len != 20) {
734 ND_PRINT("\n\t invalid subTLV length, should be 20");
735 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
737 subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4 =
738 (const struct lspping_tlv_targetfec_subtlv_rsvp_ipv4_t *)subtlv_tptr;
739 ND_PRINT("\n\t tunnel end-point %s, tunnel sender %s, lsp-id 0x%04x"
740 "\n\t tunnel-id 0x%04x, extended tunnel-id %s",
741 GET_IPADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->tunnel_endpoint),
742 GET_IPADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->tunnel_sender),
743 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->lsp_id),
744 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->tunnel_id),
745 GET_IPADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv4->extended_tunnel_id));
749 case LSPPING_TLV_TARGETFEC_SUBTLV_RSVP_IPV6:
750 /* Is the subTLV length correct? */
751 if (lspping_subtlv_len != 56) {
752 ND_PRINT("\n\t invalid subTLV length, should be 56");
753 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
755 subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6 =
756 (const struct lspping_tlv_targetfec_subtlv_rsvp_ipv6_t *)subtlv_tptr;
757 ND_PRINT("\n\t tunnel end-point %s, tunnel sender %s, lsp-id 0x%04x"
758 "\n\t tunnel-id 0x%04x, extended tunnel-id %s",
759 GET_IP6ADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->tunnel_endpoint),
760 GET_IP6ADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->tunnel_sender),
761 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->lsp_id),
762 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->tunnel_id),
763 GET_IP6ADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_rsvp_ipv6->extended_tunnel_id));
767 case LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV4:
768 /* Is the subTLV length correct? */
769 if (lspping_subtlv_len != 13) {
770 ND_PRINT("\n\t invalid subTLV length, should be 13");
771 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
773 subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4 =
774 (const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv4_t *)subtlv_tptr;
775 ND_PRINT("\n\t RD: %s, %s/%u",
776 bgp_vpn_rd_print(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4->rd),
777 GET_IPADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4->prefix),
778 GET_U_1(subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv4->prefix_len));
782 case LSPPING_TLV_TARGETFEC_SUBTLV_L3VPN_IPV6:
783 /* Is the subTLV length correct? */
784 if (lspping_subtlv_len != 25) {
785 ND_PRINT("\n\t invalid subTLV length, should be 25");
786 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
788 subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6 =
789 (const struct lspping_tlv_targetfec_subtlv_l3vpn_ipv6_t *)subtlv_tptr;
790 ND_PRINT("\n\t RD: %s, %s/%u",
791 bgp_vpn_rd_print(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6->rd),
792 GET_IP6ADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6->prefix),
793 GET_U_1(subtlv_ptr.lspping_tlv_targetfec_subtlv_l3vpn_ipv6->prefix_len));
797 case LSPPING_TLV_TARGETFEC_SUBTLV_L2VPN_ENDPT:
798 /* Is the subTLV length correct? */
799 if (lspping_subtlv_len != 14) {
800 ND_PRINT("\n\t invalid subTLV length, should be 14");
801 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
803 subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt =
804 (const struct lspping_tlv_targetfec_subtlv_l2vpn_endpt_t *)subtlv_tptr;
805 ND_PRINT("\n\t RD: %s, Sender VE ID: %u, Receiver VE ID: %u"
806 "\n\t Encapsulation Type: %s (%u)",
807 bgp_vpn_rd_print(ndo, subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->rd),
808 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->sender_ve_id),
809 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->receiver_ve_id),
810 tok2str(mpls_pw_types_values,
812 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->encapsulation)),
813 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_endpt->encapsulation));
817 /* the old L2VPN VCID subTLV does not have support for the sender field */
818 case LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW_OLD:
819 /* Is the subTLV length correct? */
820 if (lspping_subtlv_len != 10) {
821 ND_PRINT("\n\t invalid subTLV length, should be 10");
822 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
824 subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old =
825 (const struct lspping_tlv_targetfec_subtlv_fec_128_pw_old *)subtlv_tptr;
826 ND_PRINT("\n\t Remote PE: %s"
827 "\n\t PW ID: 0x%08x, PW Type: %s (%u)",
828 GET_IPADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->remote_pe_address),
829 GET_BE_U_4(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->pw_id),
830 tok2str(mpls_pw_types_values,
832 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->pw_type)),
833 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid_old->pw_type));
837 case LSPPING_TLV_TARGETFEC_SUBTLV_FEC_128_PW:
838 /* Is the subTLV length correct? */
839 if (lspping_subtlv_len != 14) {
840 ND_PRINT("\n\t invalid subTLV length, should be 14");
841 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
843 subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid =
844 (const struct lspping_tlv_targetfec_subtlv_fec_128_pw *)subtlv_tptr;
845 ND_PRINT("\n\t Sender PE: %s, Remote PE: %s"
846 "\n\t PW ID: 0x%08x, PW Type: %s (%u)",
847 GET_IPADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->sender_pe_address),
848 GET_IPADDR_STRING(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->remote_pe_address),
849 GET_BE_U_4(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->pw_id),
850 tok2str(mpls_pw_types_values,
852 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->pw_type)),
853 GET_BE_U_2(subtlv_ptr.lspping_tlv_targetfec_subtlv_l2vpn_vcid->pw_type));
858 subtlv_hexdump=TRUE; /* unknown subTLV just hexdump it */
861 /* do we want to see an additionally subtlv hexdump ? */
862 if (ndo->ndo_vflag > 1 || subtlv_hexdump==TRUE)
863 print_unknown_data(ndo, tlv_tptr+sizeof(struct lspping_tlv_header),
867 /* All subTLVs are aligned to four octet boundary */
868 if (lspping_subtlv_len % 4) {
869 lspping_subtlv_len += 4 - (lspping_subtlv_len % 4);
870 /* Does the subTLV, including padding, go past the end of the TLV? */
871 if (tlv_tlen < lspping_subtlv_len+sizeof(struct lspping_tlv_header)) {
872 ND_PRINT("\n\t\t TLV is too short");
876 tlv_tptr+=lspping_subtlv_len;
877 tlv_tlen-=lspping_subtlv_len+sizeof(struct lspping_tlv_header);
881 case LSPPING_TLV_DOWNSTREAM_MAPPING:
882 /* Does the header go past the end of the TLV? */
883 if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_t)) {
884 ND_PRINT("\n\t TLV is too short");
888 /* Did we capture enough to get the address family? */
889 ND_TCHECK_LEN(tlv_tptr,
890 sizeof(struct lspping_tlv_downstream_map_t));
892 tlv_ptr.lspping_tlv_downstream_map=
893 (const struct lspping_tlv_downstream_map_t *)tlv_tptr;
895 /* that strange thing with the downstream map TLV is that until now
896 * we do not know if its IPv4 or IPv6 or is unnumbered; after
897 * we find the address-type, we recast the tlv_tptr and move on. */
899 address_type = GET_U_1(tlv_ptr.lspping_tlv_downstream_map->address_type);
900 ND_PRINT("\n\t MTU: %u, Address-Type: %s (%u)",
901 GET_BE_U_2(tlv_ptr.lspping_tlv_downstream_map->mtu),
902 tok2str(lspping_tlv_downstream_addr_values,
907 switch(address_type) {
909 case LSPPING_AFI_IPV4:
910 /* Does the data go past the end of the TLV? */
911 if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_ipv4_t)) {
912 ND_PRINT("\n\t TLV is too short");
916 /* Did we capture enough for this part of the TLV? */
917 ND_TCHECK_LEN(tlv_tptr,
918 sizeof(struct lspping_tlv_downstream_map_ipv4_t));
920 tlv_ptr.lspping_tlv_downstream_map_ipv4=
921 (const struct lspping_tlv_downstream_map_ipv4_t *)tlv_tptr;
922 ND_PRINT("\n\t Downstream IP: %s"
923 "\n\t Downstream Interface IP: %s",
924 GET_IPADDR_STRING(tlv_ptr.lspping_tlv_downstream_map_ipv4->downstream_ip),
925 GET_IPADDR_STRING(tlv_ptr.lspping_tlv_downstream_map_ipv4->downstream_interface));
926 tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv4_t);
927 tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv4_t);
929 case LSPPING_AFI_IPV4_UNMB:
930 /* Does the data go past the end of the TLV? */
931 if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_ipv4_unmb_t)) {
932 ND_PRINT("\n\t TLV is too short");
936 /* Did we capture enough for this part of the TLV? */
937 ND_TCHECK_LEN(tlv_tptr,
938 sizeof(struct lspping_tlv_downstream_map_ipv4_unmb_t));
940 tlv_ptr.lspping_tlv_downstream_map_ipv4_unmb=
941 (const struct lspping_tlv_downstream_map_ipv4_unmb_t *)tlv_tptr;
942 ND_PRINT("\n\t Downstream IP: %s"
943 "\n\t Downstream Interface Index: 0x%08x",
944 GET_IPADDR_STRING(tlv_ptr.lspping_tlv_downstream_map_ipv4_unmb->downstream_ip),
945 GET_BE_U_4(tlv_ptr.lspping_tlv_downstream_map_ipv4_unmb->downstream_interface));
946 tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv4_unmb_t);
947 tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv4_unmb_t);
949 case LSPPING_AFI_IPV6:
950 /* Does the data go past the end of the TLV? */
951 if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_ipv6_t)) {
952 ND_PRINT("\n\t TLV is too short");
956 /* Did we capture enough for this part of the TLV? */
957 ND_TCHECK_LEN(tlv_tptr,
958 sizeof(struct lspping_tlv_downstream_map_ipv6_t));
960 tlv_ptr.lspping_tlv_downstream_map_ipv6=
961 (const struct lspping_tlv_downstream_map_ipv6_t *)tlv_tptr;
962 ND_PRINT("\n\t Downstream IP: %s"
963 "\n\t Downstream Interface IP: %s",
964 GET_IP6ADDR_STRING(tlv_ptr.lspping_tlv_downstream_map_ipv6->downstream_ip),
965 GET_IP6ADDR_STRING(tlv_ptr.lspping_tlv_downstream_map_ipv6->downstream_interface));
966 tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv6_t);
967 tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv6_t);
969 case LSPPING_AFI_IPV6_UNMB:
970 /* Does the data go past the end of the TLV? */
971 if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_ipv6_unmb_t)) {
972 ND_PRINT("\n\t TLV is too short");
976 /* Did we capture enough for this part of the TLV? */
977 ND_TCHECK_LEN(tlv_tptr,
978 sizeof(struct lspping_tlv_downstream_map_ipv6_unmb_t));
980 tlv_ptr.lspping_tlv_downstream_map_ipv6_unmb=
981 (const struct lspping_tlv_downstream_map_ipv6_unmb_t *)tlv_tptr;
982 ND_PRINT("\n\t Downstream IP: %s"
983 "\n\t Downstream Interface Index: 0x%08x",
984 GET_IP6ADDR_STRING(tlv_ptr.lspping_tlv_downstream_map_ipv6_unmb->downstream_ip),
985 GET_BE_U_4(tlv_ptr.lspping_tlv_downstream_map_ipv6_unmb->downstream_interface));
986 tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_ipv6_unmb_t);
987 tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_ipv6_unmb_t);
991 /* should not happen ! - no error message - tok2str() has barked already */
995 /* Does the data go past the end of the TLV? */
996 if (tlv_tlen < sizeof(struct lspping_tlv_downstream_map_info_t)) {
997 ND_PRINT("\n\t TLV is too short");
1001 /* Did we capture enough for this part of the TLV? */
1002 ND_TCHECK_LEN(tlv_tptr,
1003 sizeof(struct lspping_tlv_downstream_map_info_t));
1005 tlv_ptr.lspping_tlv_downstream_map_info=
1006 (const struct lspping_tlv_downstream_map_info_t *)tlv_tptr;
1008 /* FIXME add hash-key type, depth limit, multipath processing */
1010 tlv_tptr+=sizeof(struct lspping_tlv_downstream_map_info_t);
1011 tlv_tlen-=sizeof(struct lspping_tlv_downstream_map_info_t);
1013 /* FIXME print downstream labels */
1015 tlv_hexdump=TRUE; /* dump the TLV until code complete */
1019 case LSPPING_TLV_BFD_DISCRIMINATOR:
1020 if (tlv_tlen < LSPPING_TLV_BFD_DISCRIMINATOR_LEN) {
1021 ND_PRINT("\n\t TLV is too short");
1025 ND_PRINT("\n\t BFD Discriminator 0x%08x", GET_BE_U_4(tlv_tptr));
1029 case LSPPING_TLV_VENDOR_ENTERPRISE:
1033 if (tlv_tlen < LSPPING_TLV_VENDOR_ENTERPRISE_LEN) {
1034 ND_PRINT("\n\t TLV is too short");
1038 vendor_id = GET_BE_U_4(tlv_tptr);
1039 ND_PRINT("\n\t Vendor: %s (0x%04x)",
1040 tok2str(smi_values, "Unknown", vendor_id),
1047 * FIXME those are the defined TLVs that lack a decoder
1048 * you are welcome to contribute code ;-)
1050 case LSPPING_TLV_PAD:
1051 case LSPPING_TLV_ERROR_CODE:
1052 case LSPPING_TLV_VENDOR_PRIVATE:
1055 if (ndo->ndo_vflag <= 1)
1056 print_unknown_data(ndo, tlv_tptr, "\n\t ", tlv_tlen);
1059 /* do we want to see an additionally tlv hexdump ? */
1061 if (ndo->ndo_vflag > 1 || tlv_hexdump==TRUE)
1062 print_unknown_data(ndo, tptr+sizeof(struct lspping_tlv_header), "\n\t ",
1066 /* All TLVs are aligned to four octet boundary */
1067 if (lspping_tlv_len % 4) {
1068 lspping_tlv_len += (4 - lspping_tlv_len % 4);
1069 /* Does the TLV, including padding, go past the end of the packet? */
1070 if (tlen < lspping_tlv_len+sizeof(struct lspping_tlv_header))
1074 tptr+=lspping_tlv_len+sizeof(struct lspping_tlv_header);
1075 tlen-=lspping_tlv_len+sizeof(struct lspping_tlv_header);
1079 ND_PRINT("\n\t\t packet is too short");