xref: /freebsd/contrib/tcpdump/print-lmp.c (revision 3f05af05ace08ae28892ecfd28b000822a5d7ae0)
1 /*
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.
12  *
13  * Support for the Link Management Protocol as per rfc 4204.
14  *
15  * Original code by Hannes Gredler (hannes@juniper.net)
16  * Support for LMP service discovery extensions (defined by UNI 1.0) added
17  * by Manu Pathak (mapathak@cisco.com), May 2005
18  */
19 
20 #define NETDISSECT_REWORKED
21 #ifdef HAVE_CONFIG_H
22 #include "config.h"
23 #endif
24 
25 #include <tcpdump-stdinc.h>
26 
27 #include "interface.h"
28 #include "extract.h"
29 #include "addrtoname.h"
30 #include "gmpls.h"
31 
32 /*
33  * LMP common header
34  *
35  *  0                   1                   2                   3
36  *  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
37  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
38  * | Vers  |      (Reserved)       |    Flags      |    Msg Type   |
39  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
40  * |          LMP Length           |          (Reserved)           |
41  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
42  */
43 
44 struct lmp_common_header {
45     uint8_t version_res[2];
46     uint8_t flags;
47     uint8_t msg_type;
48     uint8_t length[2];
49     uint8_t reserved[2];
50 };
51 
52 #define LMP_VERSION            1
53 #define	LMP_EXTRACT_VERSION(x) (((x)&0xf0)>>4)
54 
55 static const struct tok lmp_header_flag_values[] = {
56     { 0x01, "Control Channel Down"},
57     { 0x02, "LMP restart"},
58     { 0, NULL}
59 };
60 
61 static const struct tok lmp_obj_te_link_flag_values[] = {
62     { 0x01, "Fault Management Supported"},
63     { 0x02, "Link Verification Supported"},
64     { 0, NULL}
65 };
66 
67 static const struct tok lmp_obj_data_link_flag_values[] = {
68     { 0x01, "Data Link Port"},
69     { 0x02, "Allocated for user traffic"},
70     { 0x04, "Failed link"},
71     { 0, NULL}
72 };
73 
74 static const struct tok lmp_obj_channel_status_values[] = {
75     { 1, "Signal Okay"},
76     { 2, "Signal Degraded"},
77     { 3, "Signal Fail"},
78     { 0, NULL}
79 };
80 
81 static const struct tok lmp_obj_begin_verify_flag_values[] = {
82     { 0x0001, "Verify all links"},
83     { 0x0002, "Data link type"},
84     { 0, NULL}
85 };
86 
87 static const struct tok lmp_obj_begin_verify_error_values[] = {
88     { 0x01, "Link Verification Procedure Not supported"},
89     { 0x02, "Unwilling to verify"},
90     { 0x04, "Unsupported verification transport mechanism"},
91     { 0x08, "Link-Id configuration error"},
92     { 0x10, "Unknown object c-type"},
93     { 0, NULL}
94 };
95 
96 static const struct tok lmp_obj_link_summary_error_values[] = {
97     { 0x01, "Unacceptable non-negotiable LINK-SUMMARY parameters"},
98     { 0x02, "Renegotiate LINK-SUMMARY parameters"},
99     { 0x04, "Invalid TE-LINK Object"},
100     { 0x08, "Invalid DATA-LINK Object"},
101     { 0x10, "Unknown TE-LINK Object c-type"},
102     { 0x20, "Unknown DATA-LINK Object c-type"},
103     { 0, NULL}
104 };
105 
106 /* Service Config Supported Protocols Flags */
107 static const struct tok lmp_obj_service_config_sp_flag_values[] = {
108     { 0x01, "RSVP Supported"},
109     { 0x02, "LDP Supported"},
110     { 0, NULL}
111 };
112 
113 /* Service Config Client Port Service Attribute Transparency Flags */
114 static const struct tok lmp_obj_service_config_cpsa_tp_flag_values[] = {
115     { 0x01, "Path/VC Overhead Transparency Supported"},
116     { 0x02, "Line/MS Overhead Transparency Supported"},
117     { 0x04, "Section/RS Overhead Transparency Supported"},
118     { 0, NULL}
119 };
120 
121 /* Service Config Client Port Service Attribute Contiguous Concatenation Types Flags */
122 static const struct tok lmp_obj_service_config_cpsa_cct_flag_values[] = {
123     { 0x01, "Contiguous Concatenation Types Supported"},
124     { 0, NULL}
125 };
126 
127 /* Service Config Network Service Attributes Transparency Flags */
128 static const struct tok lmp_obj_service_config_nsa_transparency_flag_values[] = {
129     { 0x01, "Standard SOH/RSOH Transparency Supported"},
130     { 0x02, "Standard LOH/MSOH Transparency Supported"},
131     { 0, NULL}
132 };
133 
134 /* Service Config Network Service Attributes TCM Monitoring Flags */
135 static const struct tok lmp_obj_service_config_nsa_tcm_flag_values[] = {
136     { 0x01, "Transparent Tandem Connection Monitoring Supported"},
137     { 0, NULL}
138 };
139 
140 /* Network Service Attributes Network Diversity Flags */
141 static const struct tok lmp_obj_service_config_nsa_network_diversity_flag_values[] = {
142     { 0x01, "Node Diversity Supported"},
143     { 0x02, "Link Diversity Supported"},
144     { 0x04, "SRLG Diversity Supported"},
145     { 0, NULL}
146 };
147 
148 #define	LMP_MSGTYPE_CONFIG                 1
149 #define	LMP_MSGTYPE_CONFIG_ACK             2
150 #define	LMP_MSGTYPE_CONFIG_NACK            3
151 #define	LMP_MSGTYPE_HELLO                  4
152 #define	LMP_MSGTYPE_VERIFY_BEGIN           5
153 #define	LMP_MSGTYPE_VERIFY_BEGIN_ACK       6
154 #define	LMP_MSGTYPE_VERIFY_BEGIN_NACK      7
155 #define LMP_MSGTYPE_VERIFY_END             8
156 #define LMP_MSGTYPE_VERIFY_END_ACK         9
157 #define LMP_MSGTYPE_TEST                  10
158 #define LMP_MSGTYPE_TEST_STATUS_SUCCESS   11
159 #define	LMP_MSGTYPE_TEST_STATUS_FAILURE   12
160 #define	LMP_MSGTYPE_TEST_STATUS_ACK       13
161 #define	LMP_MSGTYPE_LINK_SUMMARY          14
162 #define	LMP_MSGTYPE_LINK_SUMMARY_ACK      15
163 #define	LMP_MSGTYPE_LINK_SUMMARY_NACK     16
164 #define	LMP_MSGTYPE_CHANNEL_STATUS        17
165 #define	LMP_MSGTYPE_CHANNEL_STATUS_ACK    18
166 #define	LMP_MSGTYPE_CHANNEL_STATUS_REQ    19
167 #define	LMP_MSGTYPE_CHANNEL_STATUS_RESP   20
168 /* LMP Service Discovery message types defined by UNI 1.0 */
169 #define LMP_MSGTYPE_SERVICE_CONFIG        50
170 #define LMP_MSGTYPE_SERVICE_CONFIG_ACK    51
171 #define LMP_MSGTYPE_SERVICE_CONFIG_NACK   52
172 
173 static const struct tok lmp_msg_type_values[] = {
174     { LMP_MSGTYPE_CONFIG, "Config"},
175     { LMP_MSGTYPE_CONFIG_ACK, "Config ACK"},
176     { LMP_MSGTYPE_CONFIG_NACK, "Config NACK"},
177     { LMP_MSGTYPE_HELLO, "Hello"},
178     { LMP_MSGTYPE_VERIFY_BEGIN, "Begin Verify"},
179     { LMP_MSGTYPE_VERIFY_BEGIN_ACK, "Begin Verify ACK"},
180     { LMP_MSGTYPE_VERIFY_BEGIN_NACK, "Begin Verify NACK"},
181     { LMP_MSGTYPE_VERIFY_END, "End Verify"},
182     { LMP_MSGTYPE_VERIFY_END_ACK, "End Verify ACK"},
183     { LMP_MSGTYPE_TEST, "Test"},
184     { LMP_MSGTYPE_TEST_STATUS_SUCCESS, "Test Status Success"},
185     { LMP_MSGTYPE_TEST_STATUS_FAILURE, "Test Status Failure"},
186     { LMP_MSGTYPE_TEST_STATUS_ACK, "Test Status ACK"},
187     { LMP_MSGTYPE_LINK_SUMMARY, "Link Summary"},
188     { LMP_MSGTYPE_LINK_SUMMARY_ACK, "Link Summary ACK"},
189     { LMP_MSGTYPE_LINK_SUMMARY_NACK, "Link Summary NACK"},
190     { LMP_MSGTYPE_CHANNEL_STATUS, "Channel Status"},
191     { LMP_MSGTYPE_CHANNEL_STATUS_ACK, "Channel Status ACK"},
192     { LMP_MSGTYPE_CHANNEL_STATUS_REQ, "Channel Status Request"},
193     { LMP_MSGTYPE_CHANNEL_STATUS_RESP, "Channel Status Response"},
194     { LMP_MSGTYPE_SERVICE_CONFIG, "Service Config"},
195     { LMP_MSGTYPE_SERVICE_CONFIG_ACK, "Service Config ACK"},
196     { LMP_MSGTYPE_SERVICE_CONFIG_NACK, "Service Config NACK"},
197     { 0, NULL}
198 };
199 
200 /*
201  * LMP object header
202  *
203  *  0                   1                   2                   3
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  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
206  * |N|   C-Type    |     Class     |            Length             |
207  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
208  * |                                                               |
209  * //                       (object contents)                     //
210  * |                                                               |
211  * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
212  */
213 
214 struct lmp_object_header {
215     uint8_t ctype;
216     uint8_t class_num;
217     uint8_t length[2];
218 };
219 
220 #define	LMP_OBJ_CC_ID                 1
221 #define	LMP_OBJ_NODE_ID               2
222 #define	LMP_OBJ_LINK_ID               3
223 #define	LMP_OBJ_INTERFACE_ID          4
224 #define	LMP_OBJ_MESSAGE_ID            5
225 #define	LMP_OBJ_CONFIG                6
226 #define	LMP_OBJ_HELLO                 7
227 #define	LMP_OBJ_VERIFY_BEGIN          8
228 #define LMP_OBJ_VERIFY_BEGIN_ACK      9
229 #define LMP_OBJ_VERIFY_ID            10
230 #define LMP_OBJ_TE_LINK              11
231 #define LMP_OBJ_DATA_LINK            12
232 #define LMP_OBJ_CHANNEL_STATUS       13
233 #define LMP_OBJ_CHANNEL_STATUS_REQ   14
234 #define LMP_OBJ_ERROR_CODE           20
235 
236 #define LMP_OBJ_SERVICE_CONFIG       51 /* defined in UNI 1.0 */
237 
238 static const struct tok lmp_obj_values[] = {
239     { LMP_OBJ_CC_ID, "Control Channel ID" },
240     { LMP_OBJ_NODE_ID, "Node ID" },
241     { LMP_OBJ_LINK_ID, "Link ID" },
242     { LMP_OBJ_INTERFACE_ID, "Interface ID" },
243     { LMP_OBJ_MESSAGE_ID, "Message ID" },
244     { LMP_OBJ_CONFIG, "Configuration" },
245     { LMP_OBJ_HELLO, "Hello" },
246     { LMP_OBJ_VERIFY_BEGIN, "Verify Begin" },
247     { LMP_OBJ_VERIFY_BEGIN_ACK, "Verify Begin ACK" },
248     { LMP_OBJ_VERIFY_ID, "Verify ID" },
249     { LMP_OBJ_TE_LINK, "TE Link" },
250     { LMP_OBJ_DATA_LINK, "Data Link" },
251     { LMP_OBJ_CHANNEL_STATUS, "Channel Status" },
252     { LMP_OBJ_CHANNEL_STATUS_REQ, "Channel Status Request" },
253     { LMP_OBJ_ERROR_CODE, "Error Code" },
254     { LMP_OBJ_SERVICE_CONFIG, "Service Config" },
255 
256     { 0, NULL}
257 };
258 
259 #define INT_SWITCHING_TYPE_SUBOBJ 1
260 #define WAVELENGTH_SUBOBJ         2
261 
262 static const struct tok lmp_data_link_subobj[] = {
263     { INT_SWITCHING_TYPE_SUBOBJ, "Interface Switching Type" },
264     { WAVELENGTH_SUBOBJ        , "Wavelength" },
265     { 0, NULL}
266 };
267 
268 #define	LMP_CTYPE_IPV4       1
269 #define	LMP_CTYPE_IPV6       2
270 
271 #define	LMP_CTYPE_LOC        1
272 #define	LMP_CTYPE_RMT        2
273 #define	LMP_CTYPE_UNMD       3
274 
275 #define	LMP_CTYPE_IPV4_LOC   1
276 #define	LMP_CTYPE_IPV4_RMT   2
277 #define	LMP_CTYPE_IPV6_LOC   3
278 #define	LMP_CTYPE_IPV6_RMT   4
279 #define	LMP_CTYPE_UNMD_LOC   5
280 #define	LMP_CTYPE_UNMD_RMT   6
281 
282 #define	LMP_CTYPE_1          1
283 #define	LMP_CTYPE_2          2
284 
285 #define LMP_CTYPE_HELLO_CONFIG  1
286 #define LMP_CTYPE_HELLO         1
287 
288 #define LMP_CTYPE_BEGIN_VERIFY_ERROR 1
289 #define LMP_CTYPE_LINK_SUMMARY_ERROR 2
290 
291 /* C-Types for Service Config Object */
292 #define LMP_CTYPE_SERVICE_CONFIG_SP                   1
293 #define LMP_CTYPE_SERVICE_CONFIG_CPSA                 2
294 #define LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM     3
295 #define LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY    4
296 
297 /*
298  * Different link types allowed in the Client Port Service Attributes
299  * subobject defined for LMP Service Discovery in the UNI 1.0 spec
300  */
301 #define LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SDH     5 /* UNI 1.0 Sec 9.4.2 */
302 #define LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SONET   6 /* UNI 1.0 Sec 9.4.2 */
303 
304 /*
305  * the ctypes are not globally unique so for
306  * translating it to strings we build a table based
307  * on objects offsetted by the ctype
308  */
309 
310 static const struct tok lmp_ctype_values[] = {
311     { 256*LMP_OBJ_CC_ID+LMP_CTYPE_LOC, "Local" },
312     { 256*LMP_OBJ_CC_ID+LMP_CTYPE_RMT, "Remote" },
313     { 256*LMP_OBJ_NODE_ID+LMP_CTYPE_LOC, "Local" },
314     { 256*LMP_OBJ_NODE_ID+LMP_CTYPE_RMT, "Remote" },
315     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV4_LOC, "IPv4 Local" },
316     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV4_RMT, "IPv4 Remote" },
317     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV6_LOC, "IPv6 Local" },
318     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_IPV6_RMT, "IPv6 Remote" },
319     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_UNMD_LOC, "Unnumbered Local" },
320     { 256*LMP_OBJ_LINK_ID+LMP_CTYPE_UNMD_RMT, "Unnumbered Remote" },
321     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV4_LOC, "IPv4 Local" },
322     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV4_RMT, "IPv4 Remote" },
323     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV6_LOC, "IPv6 Local" },
324     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_IPV6_RMT, "IPv6 Remote" },
325     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_UNMD_LOC, "Unnumbered Local" },
326     { 256*LMP_OBJ_INTERFACE_ID+LMP_CTYPE_UNMD_RMT, "Unnumbered Remote" },
327     { 256*LMP_OBJ_MESSAGE_ID+LMP_CTYPE_1, "1" },
328     { 256*LMP_OBJ_MESSAGE_ID+LMP_CTYPE_2, "2" },
329     { 256*LMP_OBJ_CONFIG+LMP_CTYPE_1, "1" },
330     { 256*LMP_OBJ_HELLO+LMP_CTYPE_1, "1" },
331     { 256*LMP_OBJ_VERIFY_BEGIN+LMP_CTYPE_1, "1" },
332     { 256*LMP_OBJ_VERIFY_BEGIN_ACK+LMP_CTYPE_1, "1" },
333     { 256*LMP_OBJ_VERIFY_ID+LMP_CTYPE_1, "1" },
334     { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_IPV4, "IPv4" },
335     { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_IPV6, "IPv6" },
336     { 256*LMP_OBJ_TE_LINK+LMP_CTYPE_UNMD, "Unnumbered" },
337     { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_IPV4, "IPv4" },
338     { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_IPV6, "IPv6" },
339     { 256*LMP_OBJ_DATA_LINK+LMP_CTYPE_UNMD, "Unnumbered" },
340     { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_IPV4, "IPv4" },
341     { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_IPV6, "IPv6" },
342     { 256*LMP_OBJ_CHANNEL_STATUS+LMP_CTYPE_UNMD, "Unnumbered" },
343     { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_IPV4, "IPv4" },
344     { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_IPV6, "IPv6" },
345     { 256*LMP_OBJ_CHANNEL_STATUS_REQ+LMP_CTYPE_UNMD, "Unnumbered" },
346     { 256*LMP_OBJ_ERROR_CODE+LMP_CTYPE_1, "1" },
347     { 256*LMP_OBJ_ERROR_CODE+LMP_CTYPE_2, "2" },
348     { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_SP, "1" },
349     { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_CPSA, "2" },
350     { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM, "3" },
351     { 256*LMP_OBJ_SERVICE_CONFIG+LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY, "4" },
352     { 0, NULL}
353 };
354 
355 void
356 lmp_print(netdissect_options *ndo,
357           register const u_char *pptr, register u_int len) {
358 
359     const struct lmp_common_header *lmp_com_header;
360     const struct lmp_object_header *lmp_obj_header;
361     const u_char *tptr,*obj_tptr;
362     int tlen,lmp_obj_len,lmp_obj_ctype,obj_tlen;
363     int hexdump;
364     int offset,subobj_type,subobj_len,total_subobj_len;
365     int link_type;
366 
367     union { /* int to float conversion buffer */
368         float f;
369         uint32_t i;
370     } bw;
371 
372     tptr=pptr;
373     lmp_com_header = (const struct lmp_common_header *)pptr;
374     ND_TCHECK(*lmp_com_header);
375 
376     /*
377      * Sanity checking of the header.
378      */
379     if (LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]) != LMP_VERSION) {
380 	ND_PRINT((ndo, "LMP version %u packet not supported",
381                LMP_EXTRACT_VERSION(lmp_com_header->version_res[0])));
382 	return;
383     }
384 
385     /* in non-verbose mode just lets print the basic Message Type*/
386     if (ndo->ndo_vflag < 1) {
387         ND_PRINT((ndo, "LMPv%u %s Message, length: %u",
388                LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]),
389                tok2str(lmp_msg_type_values, "unknown (%u)",lmp_com_header->msg_type),
390                len));
391         return;
392     }
393 
394     /* ok they seem to want to know everything - lets fully decode it */
395 
396     tlen=EXTRACT_16BITS(lmp_com_header->length);
397 
398     ND_PRINT((ndo, "\n\tLMPv%u, msg-type: %s, Flags: [%s], length: %u",
399            LMP_EXTRACT_VERSION(lmp_com_header->version_res[0]),
400            tok2str(lmp_msg_type_values, "unknown, type: %u",lmp_com_header->msg_type),
401            bittok2str(lmp_header_flag_values,"none",lmp_com_header->flags),
402            tlen));
403 
404     tptr+=sizeof(const struct lmp_common_header);
405     tlen-=sizeof(const struct lmp_common_header);
406 
407     while(tlen>0) {
408         /* did we capture enough for fully decoding the object header ? */
409         ND_TCHECK2(*tptr, sizeof(struct lmp_object_header));
410 
411         lmp_obj_header = (const struct lmp_object_header *)tptr;
412         lmp_obj_len=EXTRACT_16BITS(lmp_obj_header->length);
413         lmp_obj_ctype=(lmp_obj_header->ctype)&0x7f;
414 
415         if(lmp_obj_len % 4 || lmp_obj_len < 4)
416             return;
417 
418         ND_PRINT((ndo, "\n\t  %s Object (%u), Class-Type: %s (%u) Flags: [%snegotiable], length: %u",
419                tok2str(lmp_obj_values,
420                        "Unknown",
421                        lmp_obj_header->class_num),
422                lmp_obj_header->class_num,
423                tok2str(lmp_ctype_values,
424                        "Unknown",
425                        ((lmp_obj_header->class_num)<<8)+lmp_obj_ctype),
426                lmp_obj_ctype,
427                (lmp_obj_header->ctype)&0x80 ? "" : "non-",
428                lmp_obj_len));
429 
430         obj_tptr=tptr+sizeof(struct lmp_object_header);
431         obj_tlen=lmp_obj_len-sizeof(struct lmp_object_header);
432 
433         /* did we capture enough for fully decoding the object ? */
434         ND_TCHECK2(*tptr, lmp_obj_len);
435         hexdump=FALSE;
436 
437         switch(lmp_obj_header->class_num) {
438 
439         case LMP_OBJ_CC_ID:
440             switch(lmp_obj_ctype) {
441             case LMP_CTYPE_LOC:
442             case LMP_CTYPE_RMT:
443                 ND_PRINT((ndo, "\n\t    Control Channel ID: %u (0x%08x)",
444                        EXTRACT_32BITS(obj_tptr),
445                        EXTRACT_32BITS(obj_tptr)));
446                 break;
447 
448             default:
449                 hexdump=TRUE;
450             }
451             break;
452 
453         case LMP_OBJ_LINK_ID:
454         case LMP_OBJ_INTERFACE_ID:
455             switch(lmp_obj_ctype) {
456             case LMP_CTYPE_IPV4_LOC:
457             case LMP_CTYPE_IPV4_RMT:
458                 ND_PRINT((ndo, "\n\t    IPv4 Link ID: %s (0x%08x)",
459                        ipaddr_string(ndo, obj_tptr),
460                        EXTRACT_32BITS(obj_tptr)));
461                 break;
462 #ifdef INET6
463             case LMP_CTYPE_IPV6_LOC:
464             case LMP_CTYPE_IPV6_RMT:
465                 ND_PRINT((ndo, "\n\t    IPv6 Link ID: %s (0x%08x)",
466                        ip6addr_string(ndo, obj_tptr),
467                        EXTRACT_32BITS(obj_tptr)));
468                 break;
469 #endif
470             case LMP_CTYPE_UNMD_LOC:
471             case LMP_CTYPE_UNMD_RMT:
472                 ND_PRINT((ndo, "\n\t    Link ID: %u (0x%08x)",
473                        EXTRACT_32BITS(obj_tptr),
474                        EXTRACT_32BITS(obj_tptr)));
475                 break;
476             default:
477                 hexdump=TRUE;
478             }
479             break;
480 
481         case LMP_OBJ_MESSAGE_ID:
482             switch(lmp_obj_ctype) {
483             case LMP_CTYPE_1:
484                 ND_PRINT((ndo, "\n\t    Message ID: %u (0x%08x)",
485                        EXTRACT_32BITS(obj_tptr),
486                        EXTRACT_32BITS(obj_tptr)));
487                 break;
488             case LMP_CTYPE_2:
489                 ND_PRINT((ndo, "\n\t    Message ID Ack: %u (0x%08x)",
490                        EXTRACT_32BITS(obj_tptr),
491                        EXTRACT_32BITS(obj_tptr)));
492                 break;
493             default:
494                 hexdump=TRUE;
495             }
496             break;
497 
498         case LMP_OBJ_NODE_ID:
499             switch(lmp_obj_ctype) {
500             case LMP_CTYPE_LOC:
501             case LMP_CTYPE_RMT:
502                 ND_PRINT((ndo, "\n\t    Node ID: %s (0x%08x)",
503                        ipaddr_string(ndo, obj_tptr),
504                        EXTRACT_32BITS(obj_tptr)));
505                 break;
506 
507             default:
508                 hexdump=TRUE;
509             }
510             break;
511 
512         case LMP_OBJ_CONFIG:
513             switch(lmp_obj_ctype) {
514             case LMP_CTYPE_HELLO_CONFIG:
515                 ND_PRINT((ndo, "\n\t    Hello Interval: %u\n\t    Hello Dead Interval: %u",
516                        EXTRACT_16BITS(obj_tptr),
517                        EXTRACT_16BITS(obj_tptr+2)));
518                 break;
519 
520             default:
521                 hexdump=TRUE;
522             }
523             break;
524 
525         case LMP_OBJ_HELLO:
526             switch(lmp_obj_ctype) {
527 	    case LMP_CTYPE_HELLO:
528                 ND_PRINT((ndo, "\n\t    Tx Seq: %u, Rx Seq: %u",
529                        EXTRACT_32BITS(obj_tptr),
530                        EXTRACT_32BITS(obj_tptr+4)));
531                 break;
532 
533             default:
534                 hexdump=TRUE;
535             }
536             break;
537 
538         case LMP_OBJ_TE_LINK:
539 		ND_PRINT((ndo, "\n\t    Flags: [%s]",
540 		bittok2str(lmp_obj_te_link_flag_values,
541 			"none",
542 			EXTRACT_16BITS(obj_tptr)>>8)));
543 
544 	    switch(lmp_obj_ctype) {
545 	    case LMP_CTYPE_IPV4:
546 		ND_PRINT((ndo, "\n\t    Local Link-ID: %s (0x%08x)"
547 		       "\n\t    Remote Link-ID: %s (0x%08x)",
548                        ipaddr_string(ndo, obj_tptr+4),
549                        EXTRACT_32BITS(obj_tptr+4),
550                        ipaddr_string(ndo, obj_tptr+8),
551                        EXTRACT_32BITS(obj_tptr+8)));
552 		break;
553 
554 #ifdef INET6
555 	    case LMP_CTYPE_IPV6:
556 #endif
557 	    case LMP_CTYPE_UNMD:
558             default:
559                 hexdump=TRUE;
560             }
561             break;
562 
563         case LMP_OBJ_DATA_LINK:
564 		ND_PRINT((ndo, "\n\t    Flags: [%s]",
565 		bittok2str(lmp_obj_data_link_flag_values,
566 			"none",
567 			EXTRACT_16BITS(obj_tptr)>>8)));
568 
569 	    switch(lmp_obj_ctype) {
570 	    case LMP_CTYPE_IPV4:
571 	    case LMP_CTYPE_UNMD:
572                 ND_PRINT((ndo, "\n\t    Local Interface ID: %s (0x%08x)"
573                        "\n\t    Remote Interface ID: %s (0x%08x)",
574                        ipaddr_string(ndo, obj_tptr+4),
575                        EXTRACT_32BITS(obj_tptr+4),
576                        ipaddr_string(ndo, obj_tptr+8),
577                        EXTRACT_32BITS(obj_tptr+8)));
578 
579 		total_subobj_len = lmp_obj_len - 16;
580 		offset = 12;
581 		while (total_subobj_len > 0 && hexdump == FALSE ) {
582 			subobj_type = EXTRACT_16BITS(obj_tptr+offset)>>8;
583 			subobj_len  = EXTRACT_16BITS(obj_tptr+offset)&0x00FF;
584 			ND_PRINT((ndo, "\n\t    Subobject, Type: %s (%u), Length: %u",
585 				tok2str(lmp_data_link_subobj,
586 					"Unknown",
587 					subobj_type),
588 					subobj_type,
589 					subobj_len));
590 			switch(subobj_type) {
591 			case INT_SWITCHING_TYPE_SUBOBJ:
592 				ND_PRINT((ndo, "\n\t      Switching Type: %s (%u)",
593 					tok2str(gmpls_switch_cap_values,
594 						"Unknown",
595 						EXTRACT_16BITS(obj_tptr+offset+2)>>8),
596 					EXTRACT_16BITS(obj_tptr+offset+2)>>8));
597 				ND_PRINT((ndo, "\n\t      Encoding Type: %s (%u)",
598 					tok2str(gmpls_encoding_values,
599 						"Unknown",
600 						EXTRACT_16BITS(obj_tptr+offset+2)&0x00FF),
601 					EXTRACT_16BITS(obj_tptr+offset+2)&0x00FF));
602 				bw.i = EXTRACT_32BITS(obj_tptr+offset+4);
603 				ND_PRINT((ndo, "\n\t      Min Reservable Bandwidth: %.3f Mbps",
604                                        bw.f*8/1000000));
605 				bw.i = EXTRACT_32BITS(obj_tptr+offset+8);
606 				ND_PRINT((ndo, "\n\t      Max Reservable Bandwidth: %.3f Mbps",
607                                        bw.f*8/1000000));
608 				break;
609 			case WAVELENGTH_SUBOBJ:
610 				ND_PRINT((ndo, "\n\t      Wavelength: %u",
611 					EXTRACT_32BITS(obj_tptr+offset+4)));
612 				break;
613 			default:
614 				/* Any Unknown Subobject ==> Exit loop */
615 				hexdump=TRUE;
616 				break;
617 			}
618 			total_subobj_len-=subobj_len;
619 			offset+=subobj_len;
620 		}
621 
622 		break;
623 #ifdef INET6
624 	    case LMP_CTYPE_IPV6:
625 #endif
626             default:
627                 hexdump=TRUE;
628             }
629             break;
630 
631         case LMP_OBJ_VERIFY_BEGIN:
632 	    switch(lmp_obj_ctype) {
633             case LMP_CTYPE_1:
634 		ND_PRINT((ndo, "\n\t    Flags: %s",
635 		bittok2str(lmp_obj_begin_verify_flag_values,
636 			"none",
637 			EXTRACT_16BITS(obj_tptr))));
638 		ND_PRINT((ndo, "\n\t    Verify Interval: %u",
639 			EXTRACT_16BITS(obj_tptr+2)));
640 		ND_PRINT((ndo, "\n\t    Data links: %u",
641 			EXTRACT_32BITS(obj_tptr+4)));
642                 ND_PRINT((ndo, "\n\t    Encoding type: %s",
643 			tok2str(gmpls_encoding_values, "Unknown", *(obj_tptr+8))));
644                 ND_PRINT((ndo, "\n\t    Verify Transport Mechanism: %u (0x%x)%s",
645 			EXTRACT_16BITS(obj_tptr+10),
646 			EXTRACT_16BITS(obj_tptr+10),
647 			EXTRACT_16BITS(obj_tptr+10)&8000 ? " (Payload test messages capable)" : ""));
648                 bw.i = EXTRACT_32BITS(obj_tptr+12);
649 		ND_PRINT((ndo, "\n\t    Transmission Rate: %.3f Mbps",bw.f*8/1000000));
650 		ND_PRINT((ndo, "\n\t    Wavelength: %u",
651 			EXTRACT_32BITS(obj_tptr+16)));
652 		break;
653 
654             default:
655                 hexdump=TRUE;
656             }
657             break;
658 
659         case LMP_OBJ_VERIFY_BEGIN_ACK:
660 	    switch(lmp_obj_ctype) {
661             case LMP_CTYPE_1:
662                 ND_PRINT((ndo, "\n\t    Verify Dead Interval: %u"
663                        "\n\t    Verify Transport Response: %u",
664                        EXTRACT_16BITS(obj_tptr),
665                        EXTRACT_16BITS(obj_tptr+2)));
666                 break;
667 
668             default:
669                 hexdump=TRUE;
670             }
671             break;
672 
673 	case LMP_OBJ_VERIFY_ID:
674 	    switch(lmp_obj_ctype) {
675             case LMP_CTYPE_1:
676                 ND_PRINT((ndo, "\n\t    Verify ID: %u",
677                        EXTRACT_32BITS(obj_tptr)));
678                 break;
679 
680             default:
681                 hexdump=TRUE;
682             }
683             break;
684 
685 	case LMP_OBJ_CHANNEL_STATUS:
686             switch(lmp_obj_ctype) {
687 	    case LMP_CTYPE_IPV4:
688 	    case LMP_CTYPE_UNMD:
689 		offset = 0;
690 		/* Decode pairs: <Interface_ID (4 bytes), Channel_status (4 bytes)> */
691 		while (offset < (lmp_obj_len-(int)sizeof(struct lmp_object_header)) ) {
692 			ND_PRINT((ndo, "\n\t    Interface ID: %s (0x%08x)",
693 			ipaddr_string(ndo, obj_tptr+offset),
694 			EXTRACT_32BITS(obj_tptr+offset)));
695 
696 			ND_PRINT((ndo, "\n\t\t    Active: %s (%u)", 		(EXTRACT_32BITS(obj_tptr+offset+4)>>31) ?
697 						"Allocated" : "Non-allocated",
698 				(EXTRACT_32BITS(obj_tptr+offset+4)>>31)));
699 
700 			ND_PRINT((ndo, "\n\t\t    Direction: %s (%u)", (EXTRACT_32BITS(obj_tptr+offset+4)>>30)&0x1 ?
701 						"Transmit" : "Receive",
702 				(EXTRACT_32BITS(obj_tptr+offset+4)>>30)&0x1));
703 
704 			ND_PRINT((ndo, "\n\t\t    Channel Status: %s (%u)",
705 					tok2str(lmp_obj_channel_status_values,
706 			 		"Unknown",
707 					EXTRACT_32BITS(obj_tptr+offset+4)&0x3FFFFFF),
708 			EXTRACT_32BITS(obj_tptr+offset+4)&0x3FFFFFF));
709 			offset+=8;
710 		}
711                 break;
712 #ifdef INET6
713 	    case LMP_CTYPE_IPV6:
714 #endif
715             default:
716                 hexdump=TRUE;
717             }
718             break;
719 
720 	case LMP_OBJ_CHANNEL_STATUS_REQ:
721             switch(lmp_obj_ctype) {
722 	    case LMP_CTYPE_IPV4:
723 	    case LMP_CTYPE_UNMD:
724 		offset = 0;
725 		while (offset < (lmp_obj_len-(int)sizeof(struct lmp_object_header)) ) {
726 			ND_PRINT((ndo, "\n\t    Interface ID: %s (0x%08x)",
727 			ipaddr_string(ndo, obj_tptr+offset),
728 			EXTRACT_32BITS(obj_tptr+offset)));
729 			offset+=4;
730 		}
731                 break;
732 #ifdef INET6
733 	    case LMP_CTYPE_IPV6:
734 #endif
735 	    default:
736                 hexdump=TRUE;
737             }
738             break;
739 
740         case LMP_OBJ_ERROR_CODE:
741 	    switch(lmp_obj_ctype) {
742             case LMP_CTYPE_BEGIN_VERIFY_ERROR:
743 		ND_PRINT((ndo, "\n\t    Error Code: %s",
744 		bittok2str(lmp_obj_begin_verify_error_values,
745 			"none",
746 			EXTRACT_32BITS(obj_tptr))));
747                 break;
748 
749             case LMP_CTYPE_LINK_SUMMARY_ERROR:
750 		ND_PRINT((ndo, "\n\t    Error Code: %s",
751 		bittok2str(lmp_obj_link_summary_error_values,
752 			"none",
753 			EXTRACT_32BITS(obj_tptr))));
754                 break;
755             default:
756                 hexdump=TRUE;
757             }
758             break;
759 
760 	case LMP_OBJ_SERVICE_CONFIG:
761 	    switch (lmp_obj_ctype) {
762 	    case LMP_CTYPE_SERVICE_CONFIG_SP:
763 
764 		ND_PRINT((ndo, "\n\t Flags: %s",
765 		       bittok2str(lmp_obj_service_config_sp_flag_values,
766 				  "none",
767 				  EXTRACT_16BITS(obj_tptr)>>8)));
768 
769 		ND_PRINT((ndo, "\n\t  UNI Version: %u",
770 		       EXTRACT_16BITS(obj_tptr) & 0x00FF));
771 
772 		break;
773 
774             case LMP_CTYPE_SERVICE_CONFIG_CPSA:
775 
776 		link_type = EXTRACT_16BITS(obj_tptr)>>8;
777 
778 		ND_PRINT((ndo, "\n\t Link Type: %s (%u)",
779 		       tok2str(lmp_sd_service_config_cpsa_link_type_values,
780 			       "Unknown", link_type),
781 		       link_type));
782 
783 		if (link_type == LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SDH) {
784 		    ND_PRINT((ndo, "\n\t Signal Type: %s (%u)",
785 			   tok2str(lmp_sd_service_config_cpsa_signal_type_sdh_values,
786 				   "Unknown",
787 				   EXTRACT_16BITS(obj_tptr) & 0x00FF),
788 			   EXTRACT_16BITS(obj_tptr) & 0x00FF));
789 		}
790 
791 		if (link_type == LMP_SD_SERVICE_CONFIG_CPSA_LINK_TYPE_SONET) {
792 		    ND_PRINT((ndo, "\n\t Signal Type: %s (%u)",
793 			   tok2str(lmp_sd_service_config_cpsa_signal_type_sonet_values,
794 				   "Unknown",
795 				   EXTRACT_16BITS(obj_tptr) & 0x00FF),
796 			   EXTRACT_16BITS(obj_tptr) & 0x00FF));
797 		}
798 
799 		ND_PRINT((ndo, "\n\t Transparency: %s",
800 		       bittok2str(lmp_obj_service_config_cpsa_tp_flag_values,
801 				  "none",
802 				  EXTRACT_16BITS(obj_tptr+2)>>8)));
803 
804 		ND_PRINT((ndo, "\n\t Contiguous Concatenation Types: %s",
805 		       bittok2str(lmp_obj_service_config_cpsa_cct_flag_values,
806 				  "none",
807 				  EXTRACT_16BITS(obj_tptr+2)>>8 & 0x00FF)));
808 
809 		ND_PRINT((ndo, "\n\t Minimum NCC: %u",
810 		       EXTRACT_16BITS(obj_tptr+4)));
811 
812 		ND_PRINT((ndo, "\n\t Maximum NCC: %u",
813 		       EXTRACT_16BITS(obj_tptr+6)));
814 
815 		ND_PRINT((ndo, "\n\t Minimum NVC:%u",
816 		       EXTRACT_16BITS(obj_tptr+8)));
817 
818 		ND_PRINT((ndo, "\n\t Maximum NVC:%u",
819 		       EXTRACT_16BITS(obj_tptr+10)));
820 
821 		ND_PRINT((ndo, "\n\t    Local Interface ID: %s (0x%08x)",
822 		       ipaddr_string(ndo, obj_tptr+12),
823 		       EXTRACT_32BITS(obj_tptr+12)));
824 
825 		break;
826 
827 	    case LMP_CTYPE_SERVICE_CONFIG_TRANSPARENCY_TCM:
828 
829 		ND_PRINT((ndo, "\n\t Transparency Flags: %s",
830 		       bittok2str(
831 			   lmp_obj_service_config_nsa_transparency_flag_values,
832 			   "none",
833 			   EXTRACT_32BITS(obj_tptr))));
834 
835 		ND_PRINT((ndo, "\n\t TCM Monitoring Flags: %s",
836 		       bittok2str(
837 			   lmp_obj_service_config_nsa_tcm_flag_values,
838 			   "none",
839 			   EXTRACT_16BITS(obj_tptr+6) & 0x00FF)));
840 
841 		break;
842 
843 	    case LMP_CTYPE_SERVICE_CONFIG_NETWORK_DIVERSITY:
844 
845 		ND_PRINT((ndo, "\n\t Diversity: Flags: %s",
846 		       bittok2str(
847 			   lmp_obj_service_config_nsa_network_diversity_flag_values,
848 			   "none",
849 			   EXTRACT_16BITS(obj_tptr+2) & 0x00FF)));
850 		break;
851 
852 	    default:
853 		hexdump = TRUE;
854 	    };
855 
856 	break;
857 
858         default:
859             if (ndo->ndo_vflag <= 1)
860                 print_unknown_data(ndo,obj_tptr,"\n\t    ",obj_tlen);
861             break;
862         }
863         /* do we want to see an additionally hexdump ? */
864         if (ndo->ndo_vflag > 1 || hexdump==TRUE)
865             print_unknown_data(ndo,tptr+sizeof(struct lmp_object_header),"\n\t    ",
866                                lmp_obj_len-sizeof(struct lmp_object_header));
867 
868         tptr+=lmp_obj_len;
869         tlen-=lmp_obj_len;
870     }
871     return;
872 trunc:
873     ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
874 }
875 /*
876  * Local Variables:
877  * c-style: whitesmith
878  * c-basic-offset: 8
879  * End:
880  */
881