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1 office 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 * Copyright (c) 2009 Mojatatu Networks, Inc
14 *
15 */
16  
17 #define NETDISSECT_REWORKED
18 #ifdef HAVE_CONFIG_H
19 #include "config.h"
20 #endif
21  
22 #include <tcpdump-stdinc.h>
23  
24 #include "interface.h"
25 #include "extract.h"
26  
27 static const char tstr[] = "[|forces]";
28  
29 /*
30 * RFC5810: Forwarding and Control Element Separation (ForCES) Protocol
31 */
32 #define ForCES_VERS 1
33 #define ForCES_HDRL 24
34 #define ForCES_ALNL 4U
35 #define TLV_HDRL 4
36 #define ILV_HDRL 8
37  
38 #define TOM_RSVD 0x0
39 #define TOM_ASSNSETUP 0x1
40 #define TOM_ASSNTEARD 0x2
41 #define TOM_CONFIG 0x3
42 #define TOM_QUERY 0x4
43 #define TOM_EVENTNOT 0x5
44 #define TOM_PKTREDIR 0x6
45 #define TOM_HEARTBT 0x0F
46 #define TOM_ASSNSETREP 0x11
47 #define TOM_CONFIGREP 0x13
48 #define TOM_QUERYREP 0x14
49  
50 /*
51 * tom_h Flags: resv1(8b):maxtlvs(4b):resv2(2b):mintlv(2b)
52 */
53 #define ZERO_TTLV 0x01
54 #define ZERO_MORE_TTLV 0x02
55 #define ONE_MORE_TTLV 0x04
56 #define ZERO_TLV 0x00
57 #define ONE_TLV 0x10
58 #define TWO_TLV 0x20
59 #define MAX_TLV 0xF0
60  
61 #define TTLV_T1 (ONE_MORE_TTLV|ONE_TLV)
62 #define TTLV_T2 (ONE_MORE_TTLV|MAX_TLV)
63  
64 struct tom_h {
65 uint32_t v;
66 uint16_t flags;
67 uint16_t op_msk;
68 const char *s;
69 int (*print) (netdissect_options *ndo, register const u_char * pptr, register u_int len,
70 uint16_t op_msk, int indent);
71 };
72  
73 enum {
74 TOM_RSV_I,
75 TOM_ASS_I,
76 TOM_AST_I,
77 TOM_CFG_I,
78 TOM_QRY_I,
79 TOM_EVN_I,
80 TOM_RED_I,
81 TOM_HBT_I,
82 TOM_ASR_I,
83 TOM_CNR_I,
84 TOM_QRR_I,
85 _TOM_RSV_MAX
86 };
87 #define TOM_MAX_IND (_TOM_RSV_MAX - 1)
88  
89 static inline int tom_valid(uint8_t tom)
90 {
91 if (tom > 0) {
92 if (tom >= 0x7 && tom <= 0xe)
93 return 0;
94 if (tom == 0x10)
95 return 0;
96 if (tom > 0x14)
97 return 0;
98 return 1;
99 } else
100 return 0;
101 }
102  
103 static inline const char *ForCES_node(uint32_t node)
104 {
105 if (node <= 0x3FFFFFFF)
106 return "FE";
107 if (node >= 0x40000000 && node <= 0x7FFFFFFF)
108 return "CE";
109 if (node >= 0xC0000000 && node <= 0xFFFFFFEF)
110 return "AllMulticast";
111 if (node == 0xFFFFFFFD)
112 return "AllCEsBroadcast";
113 if (node == 0xFFFFFFFE)
114 return "AllFEsBroadcast";
115 if (node == 0xFFFFFFFF)
116 return "AllBroadcast";
117  
118 return "ForCESreserved";
119  
120 }
121  
122 static const struct tok ForCES_ACKs[] = {
123 {0x0, "NoACK"},
124 {0x1, "SuccessACK"},
125 {0x2, "FailureACK"},
126 {0x3, "AlwaysACK"},
127 {0, NULL}
128 };
129  
130 static const struct tok ForCES_EMs[] = {
131 {0x0, "EMReserved"},
132 {0x1, "execute-all-or-none"},
133 {0x2, "execute-until-failure"},
134 {0x3, "continue-execute-on-failure"},
135 {0, NULL}
136 };
137  
138 static const struct tok ForCES_ATs[] = {
139 {0x0, "Standalone"},
140 {0x1, "2PCtransaction"},
141 {0, NULL}
142 };
143  
144 static const struct tok ForCES_TPs[] = {
145 {0x0, "StartofTransaction"},
146 {0x1, "MiddleofTransaction"},
147 {0x2, "EndofTransaction"},
148 {0x3, "abort"},
149 {0, NULL}
150 };
151  
152 /*
153 * Structure of forces header, naked of TLVs.
154 */
155 struct forcesh {
156 uint8_t fm_vrsvd; /* version and reserved */
157 #define ForCES_V(forcesh) ((forcesh)->fm_vrsvd >> 4)
158 uint8_t fm_tom; /* type of message */
159 uint16_t fm_len; /* total length * 4 bytes */
160 #define ForCES_BLN(forcesh) ((uint32_t)(EXTRACT_16BITS(&(forcesh)->fm_len) << 2))
161 uint32_t fm_sid; /* Source ID */
162 #define ForCES_SID(forcesh) EXTRACT_32BITS(&(forcesh)->fm_sid)
163 uint32_t fm_did; /* Destination ID */
164 #define ForCES_DID(forcesh) EXTRACT_32BITS(&(forcesh)->fm_did)
165 uint8_t fm_cor[8]; /* correlator */
166 uint32_t fm_flags; /* flags */
167 #define ForCES_ACK(forcesh) ((EXTRACT_32BITS(&(forcesh)->fm_flags)&0xC0000000) >> 30)
168 #define ForCES_PRI(forcesh) ((EXTRACT_32BITS(&(forcesh)->fm_flags)&0x38000000) >> 27)
169 #define ForCES_RS1(forcesh) ((EXTRACT_32BITS(&(forcesh)->fm_flags)&0x07000000) >> 24)
170 #define ForCES_EM(forcesh) ((EXTRACT_32BITS(&(forcesh)->fm_flags)&0x00C00000) >> 22)
171 #define ForCES_AT(forcesh) ((EXTRACT_32BITS(&(forcesh)->fm_flags)&0x00200000) >> 21)
172 #define ForCES_TP(forcesh) ((EXTRACT_32BITS(&(forcesh)->fm_flags)&0x00180000) >> 19)
173 #define ForCES_RS2(forcesh) ((EXTRACT_32BITS(&(forcesh)->fm_flags)&0x0007FFFF) >> 0)
174 };
175  
176 #define ForCES_HLN_VALID(fhl,tlen) ((tlen) >= ForCES_HDRL && \
177 (fhl) >= ForCES_HDRL && \
178 (fhl) == (tlen))
179  
180 #define F_LFB_RSVD 0x0
181 #define F_LFB_FEO 0x1
182 #define F_LFB_FEPO 0x2
183 static const struct tok ForCES_LFBs[] = {
184 {F_LFB_RSVD, "Invalid TLV"},
185 {F_LFB_FEO, "FEObj LFB"},
186 {F_LFB_FEPO, "FEProtoObj LFB"},
187 {0, NULL}
188 };
189  
190 /* this is defined in RFC5810 section A.2 */
191 /* http://www.iana.org/assignments/forces/forces.xhtml#oper-tlv-types */
192 enum {
193 F_OP_RSV = 0,
194 F_OP_SET = 1,
195 F_OP_SETPROP = 2,
196 F_OP_SETRESP = 3,
197 F_OP_SETPRESP = 4,
198 F_OP_DEL = 5,
199 F_OP_DELRESP = 6,
200 F_OP_GET = 7,
201 F_OP_GETPROP = 8,
202 F_OP_GETRESP = 9,
203 F_OP_GETPRESP = 10,
204 F_OP_REPORT = 11,
205 F_OP_COMMIT = 12,
206 F_OP_RCOMMIT = 13,
207 F_OP_RTRCOMP = 14,
208 _F_OP_MAX
209 };
210 #define F_OP_MAX (_F_OP_MAX - 1)
211  
212 enum {
213 B_OP_SET = 1 << (F_OP_SET - 1),
214 B_OP_SETPROP = 1 << (F_OP_SETPROP - 1),
215 B_OP_SETRESP = 1 << (F_OP_SETRESP - 1),
216 B_OP_SETPRESP = 1 << (F_OP_SETPRESP - 1),
217 B_OP_DEL = 1 << (F_OP_DEL - 1),
218 B_OP_DELRESP = 1 << (F_OP_DELRESP - 1),
219 B_OP_GET = 1 << (F_OP_GET - 1),
220 B_OP_GETPROP = 1 << (F_OP_GETPROP - 1),
221 B_OP_GETRESP = 1 << (F_OP_GETRESP - 1),
222 B_OP_GETPRESP = 1 << (F_OP_GETPRESP - 1),
223 B_OP_REPORT = 1 << (F_OP_REPORT - 1),
224 B_OP_COMMIT = 1 << (F_OP_COMMIT - 1),
225 B_OP_RCOMMIT = 1 << (F_OP_RCOMMIT - 1),
226 B_OP_RTRCOMP = 1 << (F_OP_RTRCOMP - 1),
227 };
228  
229 struct optlv_h {
230 uint16_t flags;
231 uint16_t op_msk;
232 const char *s;
233 int (*print) (netdissect_options *ndo, register const u_char * pptr, register u_int len,
234 uint16_t op_msk, int indent);
235 };
236  
237 static int genoptlv_print(netdissect_options *, register const u_char * pptr, register u_int len,
238 uint16_t op_msk, int indent);
239 static int recpdoptlv_print(netdissect_options *, register const u_char * pptr, register u_int len,
240 uint16_t op_msk, int indent);
241 static int invoptlv_print(netdissect_options *, register const u_char * pptr, register u_int len,
242 uint16_t op_msk, int indent);
243  
244 #define OP_MIN_SIZ 8
245 struct pathdata_h {
246 uint16_t pflags;
247 uint16_t pIDcnt;
248 };
249  
250 #define B_FULLD 0x1
251 #define B_SPARD 0x2
252 #define B_RESTV 0x4
253 #define B_KEYIN 0x8
254 #define B_APPND 0x10
255 #define B_TRNG 0x20
256  
257 static const struct optlv_h OPTLV_msg[F_OP_MAX + 1] = {
258 /* F_OP_RSV */ {ZERO_TTLV, 0, "Invalid OPTLV", invoptlv_print},
259 /* F_OP_SET */ {TTLV_T2, B_FULLD | B_SPARD, " Set", recpdoptlv_print},
260 /* F_OP_SETPROP */
261 {TTLV_T2, B_FULLD | B_SPARD, " SetProp", recpdoptlv_print},
262 /* F_OP_SETRESP */ {TTLV_T2, B_RESTV, " SetResp", recpdoptlv_print},
263 /* F_OP_SETPRESP */ {TTLV_T2, B_RESTV, " SetPropResp", recpdoptlv_print},
264 /* F_OP_DEL */ {ZERO_TTLV, 0, " Del", recpdoptlv_print},
265 /* F_OP_DELRESP */ {TTLV_T2, B_RESTV, " DelResp", recpdoptlv_print},
266 /* F_OP_GET */ {ZERO_TTLV, 0, " Get", recpdoptlv_print},
267 /* F_OP_GETPROP */ {ZERO_TTLV, 0, " GetProp", recpdoptlv_print},
268 /* F_OP_GETRESP */
269 {TTLV_T2, B_FULLD | B_SPARD | B_RESTV, " GetResp", recpdoptlv_print},
270 /* F_OP_GETPRESP */
271 {TTLV_T2, B_FULLD | B_RESTV, " GetPropResp", recpdoptlv_print},
272 /* F_OP_REPORT */
273 {TTLV_T2, B_FULLD | B_SPARD, " Report", recpdoptlv_print},
274 /* F_OP_COMMIT */ {ZERO_TTLV, 0, " Commit", NULL},
275 /* F_OP_RCOMMIT */ {TTLV_T1, B_RESTV, " RCommit", genoptlv_print},
276 /* F_OP_RTRCOMP */ {ZERO_TTLV, 0, " RTRCOMP", NULL},
277 };
278  
279 static inline const struct optlv_h *get_forces_optlv_h(uint16_t opt)
280 {
281 if (opt > F_OP_MAX || opt <= F_OP_RSV)
282 return &OPTLV_msg[F_OP_RSV];
283  
284 return &OPTLV_msg[opt];
285 }
286  
287 #define IND_SIZE 256
288 #define IND_CHR ' '
289 #define IND_PREF '\n'
290 #define IND_SUF 0x0
291 char ind_buf[IND_SIZE];
292  
293 static inline char *indent_pr(int indent, int nlpref)
294 {
295 int i = 0;
296 char *r = ind_buf;
297  
298 if (indent > (IND_SIZE - 1))
299 indent = IND_SIZE - 1;
300  
301 if (nlpref) {
302 r[i] = IND_PREF;
303 i++;
304 indent--;
305 }
306  
307 while (--indent >= 0)
308 r[i++] = IND_CHR;
309  
310 r[i] = IND_SUF;
311 return r;
312 }
313  
314 static inline int op_valid(uint16_t op, uint16_t mask)
315 {
316 int opb = 1 << (op - 1);
317  
318 if (op == 0)
319 return 0;
320 if (opb & mask)
321 return 1;
322 /* I guess we should allow vendor operations? */
323 if (op >= 0x8000)
324 return 1;
325 return 0;
326 }
327  
328 #define F_TLV_RSVD 0x0000
329 #define F_TLV_REDR 0x0001
330 #define F_TLV_ASRS 0x0010
331 #define F_TLV_ASRT 0x0011
332 #define F_TLV_LFBS 0x1000
333 #define F_TLV_PDAT 0x0110
334 #define F_TLV_KEYI 0x0111
335 #define F_TLV_FULD 0x0112
336 #define F_TLV_SPAD 0x0113
337 #define F_TLV_REST 0x0114
338 #define F_TLV_METD 0x0115
339 #define F_TLV_REDD 0x0116
340 #define F_TLV_TRNG 0x0117
341  
342  
343 #define F_TLV_VNST 0x8000
344  
345 static const struct tok ForCES_TLV[] = {
346 {F_TLV_RSVD, "Invalid TLV"},
347 {F_TLV_REDR, "REDIRECT TLV"},
348 {F_TLV_ASRS, "ASResult TLV"},
349 {F_TLV_ASRT, "ASTreason TLV"},
350 {F_TLV_LFBS, "LFBselect TLV"},
351 {F_TLV_PDAT, "PATH-DATA TLV"},
352 {F_TLV_KEYI, "KEYINFO TLV"},
353 {F_TLV_FULD, "FULLDATA TLV"},
354 {F_TLV_SPAD, "SPARSEDATA TLV"},
355 {F_TLV_REST, "RESULT TLV"},
356 {F_TLV_METD, "METADATA TLV"},
357 {F_TLV_REDD, "REDIRECTDATA TLV"},
358 {0, NULL}
359 };
360  
361 #define TLV_HLN 4
362 static inline int ttlv_valid(uint16_t ttlv)
363 {
364 if (ttlv > 0) {
365 if (ttlv == 1 || ttlv == 0x1000)
366 return 1;
367 if (ttlv >= 0x10 && ttlv <= 0x11)
368 return 1;
369 if (ttlv >= 0x110 && ttlv <= 0x116)
370 return 1;
371 if (ttlv >= 0x8000)
372 return 0; /* XXX: */
373 }
374  
375 return 0;
376 }
377  
378 struct forces_ilv {
379 uint32_t type;
380 uint32_t length;
381 };
382  
383 struct forces_tlv {
384 uint16_t type;
385 uint16_t length;
386 };
387  
388 #define F_ALN_LEN(len) ( ((len)+ForCES_ALNL-1) & ~(ForCES_ALNL-1) )
389 #define GET_TOP_TLV(fhdr) ((struct forces_tlv *)((fhdr) + sizeof (struct forcesh)))
390 #define TLV_SET_LEN(len) (F_ALN_LEN(TLV_HDRL) + (len))
391 #define TLV_ALN_LEN(len) F_ALN_LEN(TLV_SET_LEN(len))
392 #define TLV_RDAT_LEN(tlv) ((int)(EXTRACT_16BITS(&(tlv)->length) - TLV_SET_LEN(0))
393 #define TLV_DATA(tlvp) ((void*)(((char*)(tlvp)) + TLV_SET_LEN(0)))
394 #define GO_NXT_TLV(tlv,rlen) ((rlen) -= F_ALN_LEN(EXTRACT_16BITS(&(tlv)->length)), \
395 (struct forces_tlv*)(((char*)(tlv)) \
396 + F_ALN_LEN(EXTRACT_16BITS(&(tlv)->length))))
397 #define ILV_SET_LEN(len) (F_ALN_LEN(ILV_HDRL) + (len))
398 #define ILV_ALN_LEN(len) F_ALN_LEN(ILV_SET_LEN(len))
399 #define ILV_RDAT_LEN(ilv) ((int)(EXTRACT_32BITS(&(ilv)->length)) - ILV_SET_LEN(0))
400 #define ILV_DATA(ilvp) ((void*)(((char*)(ilvp)) + ILV_SET_LEN(0)))
401 #define GO_NXT_ILV(ilv,rlen) ((rlen) -= F_ALN_LEN(EXTRACT_32BITS(&(ilv)->length)), \
402 (struct forces_ilv *)(((char*)(ilv)) \
403 + F_ALN_LEN(EXTRACT_32BITS(&(ilv)->length))))
404 #define INVALID_RLEN 1
405 #define INVALID_STLN 2
406 #define INVALID_LTLN 3
407 #define INVALID_ALEN 4
408  
409 static const struct tok ForCES_TLV_err[] = {
410 {INVALID_RLEN, "Invalid total length"},
411 {INVALID_STLN, "xLV too short"},
412 {INVALID_LTLN, "xLV too long"},
413 {INVALID_ALEN, "data padding missing"},
414 {0, NULL}
415 };
416  
417 static inline u_int tlv_valid(const struct forces_tlv *tlv, u_int rlen)
418 {
419 if (rlen < TLV_HDRL)
420 return INVALID_RLEN;
421 if (EXTRACT_16BITS(&tlv->length) < TLV_HDRL)
422 return INVALID_STLN;
423 if (EXTRACT_16BITS(&tlv->length) > rlen)
424 return INVALID_LTLN;
425 if (rlen < F_ALN_LEN(EXTRACT_16BITS(&tlv->length)))
426 return INVALID_ALEN;
427  
428 return 0;
429 }
430  
431 static inline int ilv_valid(const struct forces_ilv *ilv, u_int rlen)
432 {
433 if (rlen < ILV_HDRL)
434 return INVALID_RLEN;
435 if (EXTRACT_32BITS(&ilv->length) < ILV_HDRL)
436 return INVALID_STLN;
437 if (EXTRACT_32BITS(&ilv->length) > rlen)
438 return INVALID_LTLN;
439 if (rlen < F_ALN_LEN(EXTRACT_32BITS(&ilv->length)))
440 return INVALID_ALEN;
441  
442 return 0;
443 }
444  
445 static int lfbselect_print(netdissect_options *, register const u_char * pptr, register u_int len,
446 uint16_t op_msk, int indent);
447 static int redirect_print(netdissect_options *, register const u_char * pptr, register u_int len,
448 uint16_t op_msk, int indent);
449 static int asrtlv_print(netdissect_options *, register const u_char * pptr, register u_int len,
450 uint16_t op_msk, int indent);
451 static int asttlv_print(netdissect_options *, register const u_char * pptr, register u_int len,
452 uint16_t op_msk, int indent);
453  
454 struct forces_lfbsh {
455 uint32_t class;
456 uint32_t instance;
457 };
458  
459 #define ASSNS_OPS (B_OP_REPORT)
460 #define CFG_OPS (B_OP_SET|B_OP_SETPROP|B_OP_DEL|B_OP_COMMIT|B_OP_RTRCOMP)
461 #define CFG_ROPS (B_OP_SETRESP|B_OP_SETPRESP|B_OP_DELRESP|B_OP_RCOMMIT)
462 #define CFG_QY (B_OP_GET|B_OP_GETPROP)
463 #define CFG_QYR (B_OP_GETRESP|B_OP_GETPRESP)
464 #define CFG_EVN (B_OP_REPORT)
465  
466 static const struct tom_h ForCES_msg[TOM_MAX_IND + 1] = {
467 /* TOM_RSV_I */ {TOM_RSVD, ZERO_TTLV, 0, "Invalid message", NULL},
468 /* TOM_ASS_I */ {TOM_ASSNSETUP, ZERO_MORE_TTLV | TWO_TLV, ASSNS_OPS,
469 "Association Setup", lfbselect_print},
470 /* TOM_AST_I */
471 {TOM_ASSNTEARD, TTLV_T1, 0, "Association TearDown", asttlv_print},
472 /* TOM_CFG_I */ {TOM_CONFIG, TTLV_T2, CFG_OPS, "Config", lfbselect_print},
473 /* TOM_QRY_I */ {TOM_QUERY, TTLV_T2, CFG_QY, "Query", lfbselect_print},
474 /* TOM_EVN_I */ {TOM_EVENTNOT, TTLV_T1, CFG_EVN, "Event Notification",
475 lfbselect_print},
476 /* TOM_RED_I */
477 {TOM_PKTREDIR, TTLV_T2, 0, "Packet Redirect", redirect_print},
478 /* TOM_HBT_I */ {TOM_HEARTBT, ZERO_TTLV, 0, "HeartBeat", NULL},
479 /* TOM_ASR_I */
480 {TOM_ASSNSETREP, TTLV_T1, 0, "Association Response", asrtlv_print},
481 /* TOM_CNR_I */ {TOM_CONFIGREP, TTLV_T2, CFG_ROPS, "Config Response",
482 lfbselect_print},
483 /* TOM_QRR_I */
484 {TOM_QUERYREP, TTLV_T2, CFG_QYR, "Query Response", lfbselect_print},
485 };
486  
487 static inline const struct tom_h *get_forces_tom(uint8_t tom)
488 {
489 int i;
490 for (i = TOM_RSV_I; i <= TOM_MAX_IND; i++) {
491 const struct tom_h *th = &ForCES_msg[i];
492 if (th->v == tom)
493 return th;
494 }
495 return &ForCES_msg[TOM_RSV_I];
496 }
497  
498 struct pdata_ops {
499 uint32_t v;
500 uint16_t flags;
501 uint16_t op_msk;
502 const char *s;
503 int (*print) (netdissect_options *, register const u_char * pptr, register u_int len,
504 uint16_t op_msk, int indent);
505 };
506  
507 enum {
508 PD_RSV_I,
509 PD_SEL_I,
510 PD_FDT_I,
511 PD_SDT_I,
512 PD_RES_I,
513 PD_PDT_I,
514 _PD_RSV_MAX
515 };
516 #define PD_MAX_IND (_TOM_RSV_MAX - 1)
517  
518 static inline int pd_valid(uint16_t pd)
519 {
520 if (pd >= F_TLV_PDAT && pd <= F_TLV_REST)
521 return 1;
522 return 0;
523 }
524  
525 static inline void
526 chk_op_type(netdissect_options *ndo,
527 uint16_t type, uint16_t msk, uint16_t omsk)
528 {
529 if (type != F_TLV_PDAT) {
530 if (msk & B_KEYIN) {
531 if (type != F_TLV_KEYI) {
532 ND_PRINT((ndo, "Based on flags expected KEYINFO TLV!\n"));
533 }
534 } else {
535 if (!(msk & omsk)) {
536 ND_PRINT((ndo, "Illegal DATA encoding for type 0x%x programmed %x got %x \n",
537 type, omsk, msk));
538 }
539 }
540 }
541  
542 }
543  
544 #define F_SELKEY 1
545 #define F_SELTABRANGE 2
546 #define F_TABAPPEND 4
547  
548 struct res_val {
549 uint8_t result;
550 uint8_t resv1;
551 uint16_t resv2;
552 };
553  
554 static int prestlv_print(netdissect_options *, register const u_char * pptr, register u_int len,
555 uint16_t op_msk, int indent);
556 static int pkeyitlv_print(netdissect_options *, register const u_char * pptr, register u_int len,
557 uint16_t op_msk, int indent);
558 static int fdatatlv_print(netdissect_options *, register const u_char * pptr, register u_int len,
559 uint16_t op_msk, int indent);
560 static int sdatatlv_print(netdissect_options *, register const u_char * pptr, register u_int len,
561 uint16_t op_msk, int indent);
562  
563 static const struct pdata_ops ForCES_pdata[PD_MAX_IND + 1] = {
564 /* PD_RSV_I */ {0, 0, 0, "Invalid message", NULL},
565 /* PD_SEL_I */ {F_TLV_KEYI, 0, 0, "KEYINFO TLV", pkeyitlv_print},
566 /* PD_FDT_I */ {F_TLV_FULD, 0, B_FULLD, "FULLDATA TLV", fdatatlv_print},
567 /* PD_SDT_I */ {F_TLV_SPAD, 0, B_SPARD, "SPARSEDATA TLV", sdatatlv_print},
568 /* PD_RES_I */ {F_TLV_REST, 0, B_RESTV, "RESULT TLV", prestlv_print},
569 /* PD_PDT_I */
570 {F_TLV_PDAT, 0, 0, "Inner PATH-DATA TLV", recpdoptlv_print},
571 };
572  
573 static inline const struct pdata_ops *get_forces_pd(uint16_t pd)
574 {
575 int i;
576 for (i = PD_RSV_I + 1; i <= PD_MAX_IND; i++) {
577 const struct pdata_ops *pdo = &ForCES_pdata[i];
578 if (pdo->v == pd)
579 return pdo;
580 }
581 return &ForCES_pdata[TOM_RSV_I];
582 }
583  
584 enum {
585 E_SUCCESS,
586 E_INVALID_HEADER,
587 E_LENGTH_MISMATCH,
588 E_VERSION_MISMATCH,
589 E_INVALID_DESTINATION_PID,
590 E_LFB_UNKNOWN,
591 E_LFB_NOT_FOUND,
592 E_LFB_INSTANCE_ID_NOT_FOUND,
593 E_INVALID_PATH,
594 E_COMPONENT_DOES_NOT_EXIST,
595 E_EXISTS,
596 E_NOT_FOUND,
597 E_READ_ONLY,
598 E_INVALID_ARRAY_CREATION,
599 E_VALUE_OUT_OF_RANGE,
600 E_CONTENTS_TOO_LONG,
601 E_INVALID_PARAMETERS,
602 E_INVALID_MESSAGE_TYPE,
603 E_INVALID_FLAGS,
604 E_INVALID_TLV,
605 E_EVENT_ERROR,
606 E_NOT_SUPPORTED,
607 E_MEMORY_ERROR,
608 E_INTERNAL_ERROR,
609 /* 0x18-0xFE are reserved .. */
610 E_UNSPECIFIED_ERROR = 0XFF
611 };
612  
613 static const struct tok ForCES_errs[] = {
614 {E_SUCCESS, "SUCCESS"},
615 {E_INVALID_HEADER, "INVALID HEADER"},
616 {E_LENGTH_MISMATCH, "LENGTH MISMATCH"},
617 {E_VERSION_MISMATCH, "VERSION MISMATCH"},
618 {E_INVALID_DESTINATION_PID, "INVALID DESTINATION PID"},
619 {E_LFB_UNKNOWN, "LFB UNKNOWN"},
620 {E_LFB_NOT_FOUND, "LFB NOT FOUND"},
621 {E_LFB_INSTANCE_ID_NOT_FOUND, "LFB INSTANCE ID NOT FOUND"},
622 {E_INVALID_PATH, "INVALID PATH"},
623 {E_COMPONENT_DOES_NOT_EXIST, "COMPONENT DOES NOT EXIST"},
624 {E_EXISTS, "EXISTS ALREADY"},
625 {E_NOT_FOUND, "NOT FOUND"},
626 {E_READ_ONLY, "READ ONLY"},
627 {E_INVALID_ARRAY_CREATION, "INVALID ARRAY CREATION"},
628 {E_VALUE_OUT_OF_RANGE, "VALUE OUT OF RANGE"},
629 {E_CONTENTS_TOO_LONG, "CONTENTS TOO LONG"},
630 {E_INVALID_PARAMETERS, "INVALID PARAMETERS"},
631 {E_INVALID_MESSAGE_TYPE, "INVALID MESSAGE TYPE"},
632 {E_INVALID_FLAGS, "INVALID FLAGS"},
633 {E_INVALID_TLV, "INVALID TLV"},
634 {E_EVENT_ERROR, "EVENT ERROR"},
635 {E_NOT_SUPPORTED, "NOT SUPPORTED"},
636 {E_MEMORY_ERROR, "MEMORY ERROR"},
637 {E_INTERNAL_ERROR, "INTERNAL ERROR"},
638 {E_UNSPECIFIED_ERROR, "UNSPECIFIED ERROR"},
639 {0, NULL}
640 };
641  
642 #define RESLEN 4
643  
644 static int
645 prestlv_print(netdissect_options *ndo,
646 register const u_char * pptr, register u_int len,
647 uint16_t op_msk _U_, int indent)
648 {
649 const struct forces_tlv *tlv = (struct forces_tlv *)pptr;
650 register const u_char *tdp = (u_char *) TLV_DATA(tlv);
651 struct res_val *r = (struct res_val *)tdp;
652 u_int dlen;
653  
654 /*
655 * pdatacnt_print() has ensured that len (the TLV length)
656 * >= TLV_HDRL.
657 */
658 dlen = len - TLV_HDRL;
659 if (dlen != RESLEN) {
660 ND_PRINT((ndo, "illegal RESULT-TLV: %d bytes!\n", dlen));
661 return -1;
662 }
663  
664 ND_TCHECK(*r);
665 if (r->result >= 0x18 && r->result <= 0xFE) {
666 ND_PRINT((ndo, "illegal reserved result code: 0x%x!\n", r->result));
667 return -1;
668 }
669  
670 if (ndo->ndo_vflag >= 3) {
671 char *ib = indent_pr(indent, 0);
672 ND_PRINT((ndo, "%s Result: %s (code 0x%x)\n", ib,
673 tok2str(ForCES_errs, NULL, r->result), r->result));
674 }
675 return 0;
676  
677 trunc:
678 ND_PRINT((ndo, "%s", tstr));
679 return -1;
680 }
681  
682 static int
683 fdatatlv_print(netdissect_options *ndo,
684 register const u_char * pptr, register u_int len,
685 uint16_t op_msk _U_, int indent)
686 {
687 const struct forces_tlv *tlv = (struct forces_tlv *)pptr;
688 u_int rlen;
689 register const u_char *tdp = (u_char *) TLV_DATA(tlv);
690 uint16_t type;
691  
692 /*
693 * pdatacnt_print() or pkeyitlv_print() has ensured that len
694 * (the TLV length) >= TLV_HDRL.
695 */
696 rlen = len - TLV_HDRL;
697 ND_TCHECK(*tlv);
698 type = EXTRACT_16BITS(&tlv->type);
699 if (type != F_TLV_FULD) {
700 ND_PRINT((ndo, "Error: expecting FULLDATA!\n"));
701 return -1;
702 }
703  
704 if (ndo->ndo_vflag >= 3) {
705 char *ib = indent_pr(indent + 2, 1);
706 ND_PRINT((ndo, "%s[", &ib[1]));
707 hex_print_with_offset(ndo, ib, tdp, rlen, 0);
708 ND_PRINT((ndo, "\n%s]\n", &ib[1]));
709 }
710 return 0;
711  
712 trunc:
713 ND_PRINT((ndo, "%s", tstr));
714 return -1;
715 }
716  
717 static int
718 sdatailv_print(netdissect_options *ndo,
719 register const u_char * pptr, register u_int len,
720 uint16_t op_msk _U_, int indent)
721 {
722 u_int rlen;
723 const struct forces_ilv *ilv = (struct forces_ilv *)pptr;
724 int invilv;
725  
726 if (len < ILV_HDRL) {
727 ND_PRINT((ndo, "Error: BAD SPARSEDATA-TLV!\n"));
728 return -1;
729 }
730 rlen = len;
731 indent += 1;
732 while (rlen != 0) {
733 #if 0
734 ND_PRINT((ndo, "Jamal - outstanding length <%d>\n", rlen));
735 #endif
736 char *ib = indent_pr(indent, 1);
737 register const u_char *tdp = (u_char *) ILV_DATA(ilv);
738 ND_TCHECK(*ilv);
739 invilv = ilv_valid(ilv, rlen);
740 if (invilv) {
741 ND_PRINT((ndo, "%s[", &ib[1]));
742 hex_print_with_offset(ndo, ib, tdp, rlen, 0);
743 ND_PRINT((ndo, "\n%s]\n", &ib[1]));
744 return -1;
745 }
746 if (ndo->ndo_vflag >= 3) {
747 int ilvl = EXTRACT_32BITS(&ilv->length);
748 ND_PRINT((ndo, "\n%s ILV: type %x length %d\n", &ib[1],
749 EXTRACT_32BITS(&ilv->type), ilvl));
750 hex_print_with_offset(ndo, "\t\t[", tdp, ilvl-ILV_HDRL, 0);
751 }
752  
753 ilv = GO_NXT_ILV(ilv, rlen);
754 }
755  
756 return 0;
757  
758 trunc:
759 ND_PRINT((ndo, "%s", tstr));
760 return -1;
761 }
762  
763 static int
764 sdatatlv_print(netdissect_options *ndo,
765 register const u_char * pptr, register u_int len,
766 uint16_t op_msk, int indent)
767 {
768 const struct forces_tlv *tlv = (struct forces_tlv *)pptr;
769 u_int rlen;
770 register const u_char *tdp = (u_char *) TLV_DATA(tlv);
771 uint16_t type;
772  
773 /*
774 * pdatacnt_print() has ensured that len (the TLV length)
775 * >= TLV_HDRL.
776 */
777 rlen = len - TLV_HDRL;
778 ND_TCHECK(*tlv);
779 type = EXTRACT_16BITS(&tlv->type);
780 if (type != F_TLV_SPAD) {
781 ND_PRINT((ndo, "Error: expecting SPARSEDATA!\n"));
782 return -1;
783 }
784  
785 return sdatailv_print(ndo, tdp, rlen, op_msk, indent);
786  
787 trunc:
788 ND_PRINT((ndo, "%s", tstr));
789 return -1;
790 }
791  
792 static int
793 pkeyitlv_print(netdissect_options *ndo,
794 register const u_char * pptr, register u_int len,
795 uint16_t op_msk, int indent)
796 {
797 const struct forces_tlv *tlv = (struct forces_tlv *)pptr;
798 register const u_char *tdp = (u_char *) TLV_DATA(tlv);
799 register const u_char *dp = tdp + 4;
800 const struct forces_tlv *kdtlv = (struct forces_tlv *)dp;
801 uint32_t id;
802 char *ib = indent_pr(indent, 0);
803 uint16_t type, tll;
804 u_int invtlv;
805  
806 ND_TCHECK(*tdp);
807 id = EXTRACT_32BITS(tdp);
808 ND_PRINT((ndo, "%sKeyinfo: Key 0x%x\n", ib, id));
809 ND_TCHECK(*kdtlv);
810 type = EXTRACT_16BITS(&kdtlv->type);
811 invtlv = tlv_valid(kdtlv, len);
812  
813 if (invtlv) {
814 ND_PRINT((ndo, "%s TLV type 0x%x len %d\n",
815 tok2str(ForCES_TLV_err, NULL, invtlv), type,
816 EXTRACT_16BITS(&kdtlv->length)));
817 return -1;
818 }
819 /*
820 * At this point, tlv_valid() has ensured that the TLV
821 * length is large enough but not too large (it doesn't
822 * go past the end of the containing TLV).
823 */
824 tll = EXTRACT_16BITS(&kdtlv->length);
825 dp = (u_char *) TLV_DATA(kdtlv);
826 return fdatatlv_print(ndo, dp, tll, op_msk, indent);
827  
828 trunc:
829 ND_PRINT((ndo, "%s", tstr));
830 return -1;
831 }
832  
833 #define PTH_DESC_SIZE 12
834  
835 static int
836 pdatacnt_print(netdissect_options *ndo,
837 register const u_char * pptr, register u_int len,
838 uint16_t IDcnt, uint16_t op_msk, int indent)
839 {
840 u_int i;
841 uint32_t id;
842 char *ib = indent_pr(indent, 0);
843  
844 if ((op_msk & B_APPND) && ndo->ndo_vflag >= 3) {
845 ND_PRINT((ndo, "%sTABLE APPEND\n", ib));
846 }
847 for (i = 0; i < IDcnt; i++) {
848 ND_TCHECK2(*pptr, 4);
849 if (len < 4)
850 goto trunc;
851 id = EXTRACT_32BITS(pptr);
852 if (ndo->ndo_vflag >= 3)
853 ND_PRINT((ndo, "%sID#%02u: %d\n", ib, i + 1, id));
854 len -= 4;
855 pptr += 4;
856 }
857  
858 if ((op_msk & B_TRNG) || (op_msk & B_KEYIN)) {
859 if (op_msk & B_TRNG) {
860 uint32_t starti, endi;
861  
862 if (len < PTH_DESC_SIZE) {
863 ND_PRINT((ndo, "pathlength %d with key/range too short %d\n",
864 len, PTH_DESC_SIZE));
865 return -1;
866 }
867  
868 pptr += sizeof(struct forces_tlv);
869 len -= sizeof(struct forces_tlv);
870  
871 starti = EXTRACT_32BITS(pptr);
872 pptr += 4;
873 len -= 4;
874  
875 endi = EXTRACT_32BITS(pptr);
876 pptr += 4;
877 len -= 4;
878  
879 if (ndo->ndo_vflag >= 3)
880 ND_PRINT((ndo, "%sTable range: [%d,%d]\n", ib, starti, endi));
881 }
882  
883 if (op_msk & B_KEYIN) {
884 struct forces_tlv *keytlv;
885 uint16_t tll;
886  
887 if (len < PTH_DESC_SIZE) {
888 ND_PRINT((ndo, "pathlength %d with key/range too short %d\n",
889 len, PTH_DESC_SIZE));
890 return -1;
891 }
892  
893 /* skip keyid */
894 pptr += 4;
895 len -= 4;
896 keytlv = (struct forces_tlv *)pptr;
897 /* skip header */
898 pptr += sizeof(struct forces_tlv);
899 len -= sizeof(struct forces_tlv);
900 /* skip key content */
901 tll = EXTRACT_16BITS(&keytlv->length);
902 if (tll < TLV_HDRL) {
903 ND_PRINT((ndo, "key content length %u < %u\n",
904 tll, TLV_HDRL));
905 return -1;
906 }
907 tll -= TLV_HDRL;
908 if (len < tll) {
909 ND_PRINT((ndo, "key content too short\n"));
910 return -1;
911 }
912 pptr += tll;
913 len -= tll;
914 }
915  
916 }
917  
918 if (len) {
919 const struct forces_tlv *pdtlv = (struct forces_tlv *)pptr;
920 uint16_t type;
921 uint16_t tll;
922 int pad = 0;
923 u_int aln;
924 u_int invtlv;
925  
926 ND_TCHECK(*pdtlv);
927 type = EXTRACT_16BITS(&pdtlv->type);
928 invtlv = tlv_valid(pdtlv, len);
929 if (invtlv) {
930 ND_PRINT((ndo, "%s Outstanding bytes %d for TLV type 0x%x TLV len %d\n",
931 tok2str(ForCES_TLV_err, NULL, invtlv), len, type,
932 EXTRACT_16BITS(&pdtlv->length)));
933 goto pd_err;
934 }
935 /*
936 * At this point, tlv_valid() has ensured that the TLV
937 * length is large enough but not too large (it doesn't
938 * go past the end of the containing TLV).
939 */
940 tll = EXTRACT_16BITS(&pdtlv->length) - TLV_HDRL;
941 aln = F_ALN_LEN(EXTRACT_16BITS(&pdtlv->length));
942 if (aln > EXTRACT_16BITS(&pdtlv->length)) {
943 if (aln > len) {
944 ND_PRINT((ndo,
945 "Invalid padded pathdata TLV type 0x%x len %d missing %d pad bytes\n",
946 type, EXTRACT_16BITS(&pdtlv->length), aln - len));
947 } else {
948 pad = aln - EXTRACT_16BITS(&pdtlv->length);
949 }
950 }
951 if (pd_valid(type)) {
952 const struct pdata_ops *ops = get_forces_pd(type);
953  
954 if (ndo->ndo_vflag >= 3 && ops->v != F_TLV_PDAT) {
955 if (pad)
956 ND_PRINT((ndo, "%s %s (Length %d DataLen %d pad %d Bytes)\n",
957 ib, ops->s, EXTRACT_16BITS(&pdtlv->length), tll, pad));
958 else
959 ND_PRINT((ndo, "%s %s (Length %d DataLen %d Bytes)\n",
960 ib, ops->s, EXTRACT_16BITS(&pdtlv->length), tll));
961 }
962  
963 chk_op_type(ndo, type, op_msk, ops->op_msk);
964  
965 if (ops->print(ndo, (const u_char *)pdtlv,
966 tll + pad + TLV_HDRL, op_msk,
967 indent + 2) == -1)
968 return -1;
969 len -= (TLV_HDRL + pad + tll);
970 } else {
971 ND_PRINT((ndo, "Invalid path data content type 0x%x len %d\n",
972 type, EXTRACT_16BITS(&pdtlv->length)));
973 pd_err:
974 if (EXTRACT_16BITS(&pdtlv->length)) {
975 hex_print_with_offset(ndo, "Bad Data val\n\t [",
976 pptr, len, 0);
977 ND_PRINT((ndo, "]\n"));
978  
979 return -1;
980 }
981 }
982 }
983 return len;
984  
985 trunc:
986 ND_PRINT((ndo, "%s", tstr));
987 return -1;
988 }
989  
990 static int
991 pdata_print(netdissect_options *ndo,
992 register const u_char * pptr, register u_int len,
993 uint16_t op_msk, int indent)
994 {
995 const struct pathdata_h *pdh = (struct pathdata_h *)pptr;
996 char *ib = indent_pr(indent, 0);
997 u_int minsize = 0;
998 int more_pd = 0;
999 uint16_t idcnt = 0;
1000  
1001 ND_TCHECK(*pdh);
1002 if (len < sizeof(struct pathdata_h))
1003 goto trunc;
1004 if (ndo->ndo_vflag >= 3) {
1005 ND_PRINT((ndo, "\n%sPathdata: Flags 0x%x ID count %d\n",
1006 ib, EXTRACT_16BITS(&pdh->pflags), EXTRACT_16BITS(&pdh->pIDcnt)));
1007 }
1008  
1009 if (EXTRACT_16BITS(&pdh->pflags) & F_SELKEY) {
1010 op_msk |= B_KEYIN;
1011 }
1012  
1013 /* Table GET Range operation */
1014 if (EXTRACT_16BITS(&pdh->pflags) & F_SELTABRANGE) {
1015 op_msk |= B_TRNG;
1016 }
1017 /* Table SET append operation */
1018 if (EXTRACT_16BITS(&pdh->pflags) & F_TABAPPEND) {
1019 op_msk |= B_APPND;
1020 }
1021  
1022 pptr += sizeof(struct pathdata_h);
1023 len -= sizeof(struct pathdata_h);
1024 idcnt = EXTRACT_16BITS(&pdh->pIDcnt);
1025 minsize = idcnt * 4;
1026 if (len < minsize) {
1027 ND_PRINT((ndo, "\t\t\ttruncated IDs expected %uB got %uB\n", minsize,
1028 len));
1029 hex_print_with_offset(ndo, "\t\t\tID Data[", pptr, len, 0);
1030 ND_PRINT((ndo, "]\n"));
1031 return -1;
1032 }
1033  
1034 if ((op_msk & B_TRNG) && (op_msk & B_KEYIN)) {
1035 ND_PRINT((ndo, "\t\t\tIllegal to have both Table ranges and keys\n"));
1036 return -1;
1037 }
1038  
1039 more_pd = pdatacnt_print(ndo, pptr, len, idcnt, op_msk, indent);
1040 if (more_pd > 0) {
1041 int consumed = len - more_pd;
1042 pptr += consumed;
1043 len = more_pd;
1044 /* XXX: Argh, recurse some more */
1045 return recpdoptlv_print(ndo, pptr, len, op_msk, indent+1);
1046 } else
1047 return 0;
1048  
1049 trunc:
1050 ND_PRINT((ndo, "%s", tstr));
1051 return -1;
1052 }
1053  
1054 static int
1055 genoptlv_print(netdissect_options *ndo,
1056 register const u_char * pptr, register u_int len,
1057 uint16_t op_msk, int indent)
1058 {
1059 const struct forces_tlv *pdtlv = (struct forces_tlv *)pptr;
1060 uint16_t type;
1061 int tll;
1062 u_int invtlv;
1063 char *ib = indent_pr(indent, 0);
1064  
1065 ND_TCHECK(*pdtlv);
1066 type = EXTRACT_16BITS(&pdtlv->type);
1067 tll = EXTRACT_16BITS(&pdtlv->length) - TLV_HDRL;
1068 invtlv = tlv_valid(pdtlv, len);
1069 ND_PRINT((ndo, "genoptlvprint - %s TLV type 0x%x len %d\n",
1070 tok2str(ForCES_TLV, NULL, type), type, EXTRACT_16BITS(&pdtlv->length)));
1071 if (!invtlv) {
1072 /*
1073 * At this point, tlv_valid() has ensured that the TLV
1074 * length is large enough but not too large (it doesn't
1075 * go past the end of the containing TLV).
1076 */
1077 register const u_char *dp = (u_char *) TLV_DATA(pdtlv);
1078 if (!ttlv_valid(type)) {
1079 ND_PRINT((ndo, "%s TLV type 0x%x len %d\n",
1080 tok2str(ForCES_TLV_err, NULL, invtlv), type,
1081 EXTRACT_16BITS(&pdtlv->length)));
1082 return -1;
1083 }
1084 if (ndo->ndo_vflag >= 3)
1085 ND_PRINT((ndo, "%s%s, length %d (data length %d Bytes)",
1086 ib, tok2str(ForCES_TLV, NULL, type),
1087 EXTRACT_16BITS(&pdtlv->length), tll));
1088  
1089 return pdata_print(ndo, dp, tll, op_msk, indent + 1);
1090 } else {
1091 ND_PRINT((ndo, "\t\t\tInvalid ForCES TLV type=%x", type));
1092 return -1;
1093 }
1094  
1095 trunc:
1096 ND_PRINT((ndo, "%s", tstr));
1097 return -1;
1098 }
1099  
1100 static int
1101 recpdoptlv_print(netdissect_options *ndo,
1102 register const u_char * pptr, register u_int len,
1103 uint16_t op_msk, int indent)
1104 {
1105 const struct forces_tlv *pdtlv = (struct forces_tlv *)pptr;
1106 int tll;
1107 u_int invtlv;
1108 uint16_t type;
1109 register const u_char *dp;
1110 char *ib;
1111  
1112 while (len != 0) {
1113 ND_TCHECK(*pdtlv);
1114 invtlv = tlv_valid(pdtlv, len);
1115 if (invtlv) {
1116 break;
1117 }
1118  
1119 /*
1120 * At this point, tlv_valid() has ensured that the TLV
1121 * length is large enough but not too large (it doesn't
1122 * go past the end of the containing TLV).
1123 */
1124 ib = indent_pr(indent, 0);
1125 type = EXTRACT_16BITS(&pdtlv->type);
1126 dp = (u_char *) TLV_DATA(pdtlv);
1127 tll = EXTRACT_16BITS(&pdtlv->length) - TLV_HDRL;
1128  
1129 if (ndo->ndo_vflag >= 3)
1130 ND_PRINT((ndo, "%s%s, length %d (data encapsulated %d Bytes)",
1131 ib, tok2str(ForCES_TLV, NULL, type),
1132 EXTRACT_16BITS(&pdtlv->length),
1133 EXTRACT_16BITS(&pdtlv->length) - TLV_HDRL));
1134  
1135 if (pdata_print(ndo, dp, tll, op_msk, indent + 1) == -1)
1136 return -1;
1137 pdtlv = GO_NXT_TLV(pdtlv, len);
1138 }
1139  
1140 if (len) {
1141 ND_PRINT((ndo,
1142 "\n\t\tMessy PATHDATA TLV header, type (0x%x)\n\t\texcess of %d Bytes ",
1143 EXTRACT_16BITS(&pdtlv->type), len - EXTRACT_16BITS(&pdtlv->length)));
1144 return -1;
1145 }
1146  
1147 return 0;
1148  
1149 trunc:
1150 ND_PRINT((ndo, "%s", tstr));
1151 return -1;
1152 }
1153  
1154 static int
1155 invoptlv_print(netdissect_options *ndo,
1156 register const u_char * pptr, register u_int len,
1157 uint16_t op_msk _U_, int indent)
1158 {
1159 char *ib = indent_pr(indent, 1);
1160  
1161 if (ndo->ndo_vflag >= 3) {
1162 ND_PRINT((ndo, "%sData[", &ib[1]));
1163 hex_print_with_offset(ndo, ib, pptr, len, 0);
1164 ND_PRINT((ndo, "%s]\n", ib));
1165 }
1166 return -1;
1167 }
1168  
1169 static int
1170 otlv_print(netdissect_options *ndo,
1171 const struct forces_tlv *otlv, uint16_t op_msk _U_, int indent)
1172 {
1173 int rc = 0;
1174 register const u_char *dp = (u_char *) TLV_DATA(otlv);
1175 uint16_t type;
1176 int tll;
1177 char *ib = indent_pr(indent, 0);
1178 const struct optlv_h *ops;
1179  
1180 /*
1181 * lfbselect_print() has ensured that EXTRACT_16BITS(&otlv->length)
1182 * >= TLV_HDRL.
1183 */
1184 ND_TCHECK(*otlv);
1185 type = EXTRACT_16BITS(&otlv->type);
1186 tll = EXTRACT_16BITS(&otlv->length) - TLV_HDRL;
1187 ops = get_forces_optlv_h(type);
1188 if (ndo->ndo_vflag >= 3) {
1189 ND_PRINT((ndo, "%sOper TLV %s(0x%x) length %d\n", ib, ops->s, type,
1190 EXTRACT_16BITS(&otlv->length)));
1191 }
1192 /* rest of ops must at least have 12B {pathinfo} */
1193 if (tll < OP_MIN_SIZ) {
1194 ND_PRINT((ndo, "\t\tOper TLV %s(0x%x) length %d\n", ops->s, type,
1195 EXTRACT_16BITS(&otlv->length)));
1196 ND_PRINT((ndo, "\t\tTruncated data size %d minimum required %d\n", tll,
1197 OP_MIN_SIZ));
1198 return invoptlv_print(ndo, dp, tll, ops->op_msk, indent);
1199  
1200 }
1201  
1202 /* XXX - do anything with ops->flags? */
1203 if(ops->print) {
1204 rc = ops->print(ndo, dp, tll, ops->op_msk, indent + 1);
1205 }
1206 return rc;
1207  
1208 trunc:
1209 ND_PRINT((ndo, "%s", tstr));
1210 return -1;
1211 }
1212  
1213 #define ASTDLN 4
1214 #define ASTMCD 255
1215 static int
1216 asttlv_print(netdissect_options *ndo,
1217 register const u_char * pptr, register u_int len,
1218 uint16_t op_msk _U_, int indent)
1219 {
1220 uint32_t rescode;
1221 u_int dlen;
1222 char *ib = indent_pr(indent, 0);
1223  
1224 /*
1225 * forces_type_print() has ensured that len (the TLV length)
1226 * >= TLV_HDRL.
1227 */
1228 dlen = len - TLV_HDRL;
1229 if (dlen != ASTDLN) {
1230 ND_PRINT((ndo, "illegal ASTresult-TLV: %d bytes!\n", dlen));
1231 return -1;
1232 }
1233 ND_TCHECK2(*pptr, 4);
1234 rescode = EXTRACT_32BITS(pptr);
1235 if (rescode > ASTMCD) {
1236 ND_PRINT((ndo, "illegal ASTresult result code: %d!\n", rescode));
1237 return -1;
1238 }
1239  
1240 if (ndo->ndo_vflag >= 3) {
1241 ND_PRINT((ndo, "Teardown reason:\n%s", ib));
1242 switch (rescode) {
1243 case 0:
1244 ND_PRINT((ndo, "Normal Teardown"));
1245 break;
1246 case 1:
1247 ND_PRINT((ndo, "Loss of Heartbeats"));
1248 break;
1249 case 2:
1250 ND_PRINT((ndo, "Out of bandwidth"));
1251 break;
1252 case 3:
1253 ND_PRINT((ndo, "Out of Memory"));
1254 break;
1255 case 4:
1256 ND_PRINT((ndo, "Application Crash"));
1257 break;
1258 default:
1259 ND_PRINT((ndo, "Unknown Teardown reason"));
1260 break;
1261 }
1262 ND_PRINT((ndo, "(%x)\n%s", rescode, ib));
1263 }
1264 return 0;
1265  
1266 trunc:
1267 ND_PRINT((ndo, "%s", tstr));
1268 return -1;
1269 }
1270  
1271 #define ASRDLN 4
1272 #define ASRMCD 3
1273 static int
1274 asrtlv_print(netdissect_options *ndo,
1275 register const u_char * pptr, register u_int len,
1276 uint16_t op_msk _U_, int indent)
1277 {
1278 uint32_t rescode;
1279 u_int dlen;
1280 char *ib = indent_pr(indent, 0);
1281  
1282 /*
1283 * forces_type_print() has ensured that len (the TLV length)
1284 * >= TLV_HDRL.
1285 */
1286 dlen = len - TLV_HDRL;
1287 if (dlen != ASRDLN) { /* id, instance, oper tlv */
1288 ND_PRINT((ndo, "illegal ASRresult-TLV: %d bytes!\n", dlen));
1289 return -1;
1290 }
1291 ND_TCHECK2(*pptr, 4);
1292 rescode = EXTRACT_32BITS(pptr);
1293  
1294 if (rescode > ASRMCD) {
1295 ND_PRINT((ndo, "illegal ASRresult result code: %d!\n", rescode));
1296 return -1;
1297 }
1298  
1299 if (ndo->ndo_vflag >= 3) {
1300 ND_PRINT((ndo, "\n%s", ib));
1301 switch (rescode) {
1302 case 0:
1303 ND_PRINT((ndo, "Success "));
1304 break;
1305 case 1:
1306 ND_PRINT((ndo, "FE ID invalid "));
1307 break;
1308 case 2:
1309 ND_PRINT((ndo, "permission denied "));
1310 break;
1311 default:
1312 ND_PRINT((ndo, "Unknown "));
1313 break;
1314 }
1315 ND_PRINT((ndo, "(%x)\n%s", rescode, ib));
1316 }
1317 return 0;
1318  
1319 trunc:
1320 ND_PRINT((ndo, "%s", tstr));
1321 return -1;
1322 }
1323  
1324 #if 0
1325 /*
1326 * XXX - not used.
1327 */
1328 static int
1329 gentltlv_print(netdissect_options *ndo,
1330 register const u_char * pptr _U_, register u_int len,
1331 uint16_t op_msk _U_, int indent _U_)
1332 {
1333 u_int dlen = len - TLV_HDRL;
1334  
1335 if (dlen < 4) { /* at least 32 bits must exist */
1336 ND_PRINT((ndo, "truncated TLV: %d bytes missing! ", 4 - dlen));
1337 return -1;
1338 }
1339 return 0;
1340 }
1341 #endif
1342  
1343 #define RD_MIN 8
1344  
1345 static int
1346 print_metailv(netdissect_options *ndo,
1347 register const u_char * pptr, uint16_t op_msk _U_, int indent)
1348 {
1349 u_int rlen;
1350 char *ib = indent_pr(indent, 0);
1351 /* XXX: check header length */
1352 const struct forces_ilv *ilv = (struct forces_ilv *)pptr;
1353  
1354 /*
1355 * print_metatlv() has ensured that len (what remains in the
1356 * ILV) >= ILV_HDRL.
1357 */
1358 rlen = EXTRACT_32BITS(&ilv->length) - ILV_HDRL;
1359 ND_TCHECK(*ilv);
1360 ND_PRINT((ndo, "%sMetaID 0x%x length %d\n", ib, EXTRACT_32BITS(&ilv->type),
1361 EXTRACT_32BITS(&ilv->length)));
1362 if (ndo->ndo_vflag >= 3) {
1363 hex_print_with_offset(ndo, "\t\t[", ILV_DATA(ilv), rlen, 0);
1364 ND_PRINT((ndo, " ]\n"));
1365 }
1366 return 0;
1367  
1368 trunc:
1369 ND_PRINT((ndo, "%s", tstr));
1370 return -1;
1371 }
1372  
1373 static int
1374 print_metatlv(netdissect_options *ndo,
1375 register const u_char * pptr, register u_int len,
1376 uint16_t op_msk _U_, int indent)
1377 {
1378 u_int dlen;
1379 char *ib = indent_pr(indent, 0);
1380 u_int rlen;
1381 const struct forces_ilv *ilv = (struct forces_ilv *)pptr;
1382 int invilv;
1383  
1384 /*
1385 * redirect_print() has ensured that len (what remains in the
1386 * TLV) >= TLV_HDRL.
1387 */
1388 dlen = len - TLV_HDRL;
1389 rlen = dlen;
1390 ND_PRINT((ndo, "\n%s METADATA length %d \n", ib, rlen));
1391 while (rlen != 0) {
1392 ND_TCHECK(*ilv);
1393 invilv = ilv_valid(ilv, rlen);
1394 if (invilv) {
1395 break;
1396 }
1397  
1398 /*
1399 * At this point, ilv_valid() has ensured that the ILV
1400 * length is large enough but not too large (it doesn't
1401 * go past the end of the containing TLV).
1402 */
1403 print_metailv(ndo, (u_char *) ilv, 0, indent + 1);
1404 ilv = GO_NXT_ILV(ilv, rlen);
1405 }
1406  
1407 return 0;
1408  
1409 trunc:
1410 ND_PRINT((ndo, "%s", tstr));
1411 return -1;
1412 }
1413  
1414  
1415 static int
1416 print_reddata(netdissect_options *ndo,
1417 register const u_char * pptr, register u_int len,
1418 uint16_t op_msk _U_, int indent _U_)
1419 {
1420 u_int dlen;
1421 char *ib = indent_pr(indent, 0);
1422 u_int rlen;
1423  
1424 dlen = len - TLV_HDRL;
1425 rlen = dlen;
1426 ND_PRINT((ndo, "\n%s Redirect Data length %d \n", ib, rlen));
1427  
1428 if (ndo->ndo_vflag >= 3) {
1429 ND_PRINT((ndo, "\t\t["));
1430 hex_print_with_offset(ndo, "\n\t\t", pptr, rlen, 0);
1431 ND_PRINT((ndo, "\n\t\t]"));
1432 }
1433  
1434 return 0;
1435 }
1436  
1437 static int
1438 redirect_print(netdissect_options *ndo,
1439 register const u_char * pptr, register u_int len,
1440 uint16_t op_msk _U_, int indent)
1441 {
1442 const struct forces_tlv *tlv = (struct forces_tlv *)pptr;
1443 u_int dlen;
1444 u_int rlen;
1445 u_int invtlv;
1446  
1447 /*
1448 * forces_type_print() has ensured that len (the TLV length)
1449 * >= TLV_HDRL.
1450 */
1451 dlen = len - TLV_HDRL;
1452 if (dlen <= RD_MIN) {
1453 ND_PRINT((ndo, "\n\t\ttruncated Redirect TLV: %d bytes missing! ",
1454 RD_MIN - dlen));
1455 return -1;
1456 }
1457  
1458 rlen = dlen;
1459 indent += 1;
1460 while (rlen != 0) {
1461 ND_TCHECK(*tlv);
1462 invtlv = tlv_valid(tlv, rlen);
1463 if (invtlv) {
1464 ND_PRINT((ndo, "Bad Redirect data\n"));
1465 break;
1466 }
1467  
1468 /*
1469 * At this point, tlv_valid() has ensured that the TLV
1470 * length is large enough but not too large (it doesn't
1471 * go past the end of the containing TLV).
1472 */
1473 if (EXTRACT_16BITS(&tlv->type) == F_TLV_METD) {
1474 print_metatlv(ndo, (u_char *) TLV_DATA(tlv),
1475 EXTRACT_16BITS(&tlv->length), 0, indent);
1476 } else if ((EXTRACT_16BITS(&tlv->type) == F_TLV_REDD)) {
1477 print_reddata(ndo, (u_char *) TLV_DATA(tlv),
1478 EXTRACT_16BITS(&tlv->length), 0, indent);
1479 } else {
1480 ND_PRINT((ndo, "Unknown REDIRECT TLV 0x%x len %d\n",
1481 EXTRACT_16BITS(&tlv->type),
1482 EXTRACT_16BITS(&tlv->length)));
1483 }
1484  
1485 tlv = GO_NXT_TLV(tlv, rlen);
1486 }
1487  
1488 if (rlen) {
1489 ND_PRINT((ndo,
1490 "\n\t\tMessy Redirect TLV header, type (0x%x)\n\t\texcess of %d Bytes ",
1491 EXTRACT_16BITS(&tlv->type),
1492 rlen - EXTRACT_16BITS(&tlv->length)));
1493 return -1;
1494 }
1495  
1496 return 0;
1497  
1498 trunc:
1499 ND_PRINT((ndo, "%s", tstr));
1500 return -1;
1501 }
1502  
1503 #define OP_OFF 8
1504 #define OP_MIN 12
1505  
1506 static int
1507 lfbselect_print(netdissect_options *ndo,
1508 register const u_char * pptr, register u_int len,
1509 uint16_t op_msk, int indent)
1510 {
1511 const struct forces_lfbsh *lfbs;
1512 const struct forces_tlv *otlv;
1513 char *ib = indent_pr(indent, 0);
1514 u_int dlen;
1515 u_int rlen;
1516 u_int invtlv;
1517  
1518 /*
1519 * forces_type_print() has ensured that len (the TLV length)
1520 * >= TLV_HDRL.
1521 */
1522 dlen = len - TLV_HDRL;
1523 if (dlen <= OP_MIN) { /* id, instance, oper tlv header .. */
1524 ND_PRINT((ndo, "\n\t\ttruncated lfb selector: %d bytes missing! ",
1525 OP_MIN - dlen));
1526 return -1;
1527 }
1528  
1529 /*
1530 * At this point, we know that dlen > OP_MIN; OP_OFF < OP_MIN, so
1531 * we also know that it's > OP_OFF.
1532 */
1533 rlen = dlen - OP_OFF;
1534  
1535 lfbs = (const struct forces_lfbsh *)pptr;
1536 ND_TCHECK(*lfbs);
1537 if (ndo->ndo_vflag >= 3) {
1538 ND_PRINT((ndo, "\n%s%s(Classid %x) instance %x\n",
1539 ib, tok2str(ForCES_LFBs, NULL, EXTRACT_32BITS(&lfbs->class)),
1540 EXTRACT_32BITS(&lfbs->class),
1541 EXTRACT_32BITS(&lfbs->instance)));
1542 }
1543  
1544 otlv = (struct forces_tlv *)(lfbs + 1);
1545  
1546 indent += 1;
1547 while (rlen != 0) {
1548 ND_TCHECK(*otlv);
1549 invtlv = tlv_valid(otlv, rlen);
1550 if (invtlv)
1551 break;
1552  
1553 /*
1554 * At this point, tlv_valid() has ensured that the TLV
1555 * length is large enough but not too large (it doesn't
1556 * go past the end of the containing TLV).
1557 */
1558 if (op_valid(EXTRACT_16BITS(&otlv->type), op_msk)) {
1559 otlv_print(ndo, otlv, 0, indent);
1560 } else {
1561 if (ndo->ndo_vflag < 3)
1562 ND_PRINT((ndo, "\n"));
1563 ND_PRINT((ndo,
1564 "\t\tINValid oper-TLV type 0x%x length %d for this ForCES message\n",
1565 EXTRACT_16BITS(&otlv->type), EXTRACT_16BITS(&otlv->length)));
1566 invoptlv_print(ndo, (u_char *)otlv, rlen, 0, indent);
1567 }
1568 otlv = GO_NXT_TLV(otlv, rlen);
1569 }
1570  
1571 if (rlen) {
1572 ND_PRINT((ndo,
1573 "\n\t\tMessy oper TLV header, type (0x%x)\n\t\texcess of %d Bytes ",
1574 EXTRACT_16BITS(&otlv->type), rlen - EXTRACT_16BITS(&otlv->length)));
1575 return -1;
1576 }
1577  
1578 return 0;
1579  
1580 trunc:
1581 ND_PRINT((ndo, "%s", tstr));
1582 return -1;
1583 }
1584  
1585 static int
1586 forces_type_print(netdissect_options *ndo,
1587 register const u_char * pptr, const struct forcesh *fhdr _U_,
1588 register u_int mlen, const struct tom_h *tops)
1589 {
1590 const struct forces_tlv *tltlv;
1591 u_int rlen;
1592 u_int invtlv;
1593 int rc = 0;
1594 int ttlv = 0;
1595  
1596 /*
1597 * forces_print() has already checked that mlen >= ForCES_HDRL
1598 * by calling ForCES_HLN_VALID().
1599 */
1600 rlen = mlen - ForCES_HDRL;
1601  
1602 if (rlen > TLV_HLN) {
1603 if (tops->flags & ZERO_TTLV) {
1604 ND_PRINT((ndo, "<0x%x>Illegal Top level TLV!\n", tops->flags));
1605 return -1;
1606 }
1607 } else {
1608 if (tops->flags & ZERO_MORE_TTLV)
1609 return 0;
1610 if (tops->flags & ONE_MORE_TTLV) {
1611 ND_PRINT((ndo, "\tTop level TLV Data missing!\n"));
1612 return -1;
1613 }
1614 }
1615  
1616 if (tops->flags & ZERO_TTLV) {
1617 return 0;
1618 }
1619  
1620 ttlv = tops->flags >> 4;
1621 tltlv = GET_TOP_TLV(pptr);
1622  
1623 /*XXX: 15 top level tlvs will probably be fine
1624 You are nuts if you send more ;-> */
1625 while (rlen != 0) {
1626 ND_TCHECK(*tltlv);
1627 invtlv = tlv_valid(tltlv, rlen);
1628 if (invtlv)
1629 break;
1630  
1631 /*
1632 * At this point, tlv_valid() has ensured that the TLV
1633 * length is large enough but not too large (it doesn't
1634 * go past the end of the packet).
1635 */
1636 if (!ttlv_valid(EXTRACT_16BITS(&tltlv->type))) {
1637 ND_PRINT((ndo, "\n\tInvalid ForCES Top TLV type=0x%x",
1638 EXTRACT_16BITS(&tltlv->type)));
1639 return -1;
1640 }
1641  
1642 if (ndo->ndo_vflag >= 3)
1643 ND_PRINT((ndo, "\t%s, length %d (data length %d Bytes)",
1644 tok2str(ForCES_TLV, NULL, EXTRACT_16BITS(&tltlv->type)),
1645 EXTRACT_16BITS(&tltlv->length),
1646 EXTRACT_16BITS(&tltlv->length) - TLV_HDRL));
1647  
1648 rc = tops->print(ndo, (u_char *) TLV_DATA(tltlv),
1649 EXTRACT_16BITS(&tltlv->length), tops->op_msk, 9);
1650 if (rc < 0) {
1651 return -1;
1652 }
1653 tltlv = GO_NXT_TLV(tltlv, rlen);
1654 ttlv--;
1655 if (ttlv <= 0)
1656 break;
1657 }
1658 /*
1659 * XXX - if ttlv != 0, does that mean that the packet was too
1660 * short, and didn't have *enough* TLVs in it?
1661 */
1662 if (rlen) {
1663 ND_PRINT((ndo, "\tMess TopTLV header: min %u, total %d advertised %d ",
1664 TLV_HDRL, rlen, EXTRACT_16BITS(&tltlv->length)));
1665 return -1;
1666 }
1667  
1668 return 0;
1669  
1670 trunc:
1671 ND_PRINT((ndo, "%s", tstr));
1672 return -1;
1673 }
1674  
1675 void
1676 forces_print(netdissect_options *ndo,
1677 register const u_char * pptr, register u_int len)
1678 {
1679 const struct forcesh *fhdr;
1680 u_int mlen;
1681 uint32_t flg_raw;
1682 const struct tom_h *tops;
1683 int rc = 0;
1684  
1685 fhdr = (const struct forcesh *)pptr;
1686 ND_TCHECK(*fhdr);
1687 if (!tom_valid(fhdr->fm_tom)) {
1688 ND_PRINT((ndo, "Invalid ForCES message type %d\n", fhdr->fm_tom));
1689 goto error;
1690 }
1691  
1692 mlen = ForCES_BLN(fhdr);
1693  
1694 tops = get_forces_tom(fhdr->fm_tom);
1695 if (tops->v == TOM_RSVD) {
1696 ND_PRINT((ndo, "\n\tUnknown ForCES message type=0x%x", fhdr->fm_tom));
1697 goto error;
1698 }
1699  
1700 ND_PRINT((ndo, "\n\tForCES %s ", tops->s));
1701 if (!ForCES_HLN_VALID(mlen, len)) {
1702 ND_PRINT((ndo,
1703 "Illegal ForCES pkt len - min %u, total recvd %d, advertised %d ",
1704 ForCES_HDRL, len, ForCES_BLN(fhdr)));
1705 goto error;
1706 }
1707  
1708 ND_TCHECK2(*(pptr + 20), 4);
1709 flg_raw = EXTRACT_32BITS(pptr + 20);
1710 if (ndo->ndo_vflag >= 1) {
1711 ND_PRINT((ndo, "\n\tForCES Version %d len %uB flags 0x%08x ",
1712 ForCES_V(fhdr), mlen, flg_raw));
1713 ND_PRINT((ndo,
1714 "\n\tSrcID 0x%x(%s) DstID 0x%x(%s) Correlator 0x%" PRIx64,
1715 ForCES_SID(fhdr), ForCES_node(ForCES_SID(fhdr)),
1716 ForCES_DID(fhdr), ForCES_node(ForCES_DID(fhdr)),
1717 EXTRACT_64BITS(fhdr->fm_cor)));
1718  
1719 }
1720 if (ndo->ndo_vflag >= 2) {
1721 ND_PRINT((ndo,
1722 "\n\tForCES flags:\n\t %s(0x%x), prio=%d, %s(0x%x),\n\t %s(0x%x), %s(0x%x)\n",
1723 tok2str(ForCES_ACKs, "ACKUnknown", ForCES_ACK(fhdr)),
1724 ForCES_ACK(fhdr),
1725 ForCES_PRI(fhdr),
1726 tok2str(ForCES_EMs, "EMUnknown", ForCES_EM(fhdr)),
1727 ForCES_EM(fhdr),
1728 tok2str(ForCES_ATs, "ATUnknown", ForCES_AT(fhdr)),
1729 ForCES_AT(fhdr),
1730 tok2str(ForCES_TPs, "TPUnknown", ForCES_TP(fhdr)),
1731 ForCES_TP(fhdr)));
1732 ND_PRINT((ndo,
1733 "\t Extra flags: rsv(b5-7) 0x%x rsv(b13-31) 0x%x\n",
1734 ForCES_RS1(fhdr), ForCES_RS2(fhdr)));
1735 }
1736 rc = forces_type_print(ndo, pptr, fhdr, mlen, tops);
1737 if (rc < 0) {
1738 error:
1739 hex_print_with_offset(ndo, "\n\t[", pptr, len, 0);
1740 ND_PRINT((ndo, "\n\t]"));
1741 return;
1742 }
1743  
1744 if (ndo->ndo_vflag >= 4) {
1745 ND_PRINT((ndo, "\n\t Raw ForCES message\n\t ["));
1746 hex_print_with_offset(ndo, "\n\t ", pptr, len, 0);
1747 ND_PRINT((ndo, "\n\t ]"));
1748 }
1749 ND_PRINT((ndo, "\n"));
1750 return;
1751  
1752 trunc:
1753 ND_PRINT((ndo, "%s", tstr));
1754 }
1755 /*
1756 * Local Variables:
1757 * c-style: whitesmith
1758 * c-basic-offset: 8
1759 * End:
1760 */