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 * Per draft-ietf-forces-protocol-22 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 enum { 191 F_OP_RSV, 192 F_OP_SET, 193 F_OP_SETPROP, 194 F_OP_SETRESP, 195 F_OP_SETPRESP, 196 F_OP_DEL, 197 F_OP_DELRESP, 198 F_OP_GET, 199 F_OP_GETPROP, 200 F_OP_GETRESP, 201 F_OP_GETPRESP, 202 F_OP_REPORT, 203 F_OP_COMMIT, 204 F_OP_RCOMMIT, 205 F_OP_RTRCOMP, 206 _F_OP_MAX 207 }; 208 209 #define F_OP_MAX (_F_OP_MAX - 1) 210 enum { 211 B_OP_SET = 1 << (F_OP_SET - 1), 212 B_OP_SETPROP = 1 << (F_OP_SETPROP - 1), 213 B_OP_SETRESP = 1 << (F_OP_SETRESP - 1), 214 B_OP_SETPRESP = 1 << (F_OP_SETPRESP - 1), 215 B_OP_DEL = 1 << (F_OP_DEL - 1), 216 B_OP_DELRESP = 1 << (F_OP_DELRESP - 1), 217 B_OP_GET = 1 << (F_OP_GET - 1), 218 B_OP_GETPROP = 1 << (F_OP_GETPROP - 1), 219 B_OP_GETRESP = 1 << (F_OP_GETRESP - 1), 220 B_OP_GETPRESP = 1 << (F_OP_GETPRESP - 1), 221 B_OP_REPORT = 1 << (F_OP_REPORT - 1), 222 B_OP_COMMIT = 1 << (F_OP_COMMIT - 1), 223 B_OP_RCOMMIT = 1 << (F_OP_RCOMMIT - 1), 224 B_OP_RTRCOMP = 1 << (F_OP_RTRCOMP - 1), 225 }; 226 227 struct optlv_h { 228 uint16_t flags; 229 uint16_t op_msk; 230 const char *s; 231 int (*print) (netdissect_options *ndo, register const u_char * pptr, register u_int len, 232 uint16_t op_msk, int indent); 233 }; 234 235 static int genoptlv_print(netdissect_options *, register const u_char * pptr, register u_int len, 236 uint16_t op_msk, int indent); 237 static int recpdoptlv_print(netdissect_options *, register const u_char * pptr, register u_int len, 238 uint16_t op_msk, int indent); 239 static int invoptlv_print(netdissect_options *, register const u_char * pptr, register u_int len, 240 uint16_t op_msk, int indent); 241 242 #define OP_MIN_SIZ 8 243 struct pathdata_h { 244 uint16_t pflags; 245 uint16_t pIDcnt; 246 }; 247 248 #define B_FULLD 0x1 249 #define B_SPARD 0x2 250 #define B_RESTV 0x4 251 #define B_KEYIN 0x8 252 #define B_APPND 0x10 253 #define B_TRNG 0x20 254 255 static const struct optlv_h OPTLV_msg[F_OP_MAX + 1] = { 256 /* F_OP_RSV */ {ZERO_TTLV, 0, "Invalid OPTLV", invoptlv_print}, 257 /* F_OP_SET */ {TTLV_T2, B_FULLD | B_SPARD, " Set", recpdoptlv_print}, 258 /* F_OP_SETPROP */ 259 {TTLV_T2, B_FULLD | B_SPARD, " SetProp", recpdoptlv_print}, 260 /* F_OP_SETRESP */ {TTLV_T2, B_RESTV, " SetResp", recpdoptlv_print}, 261 /* F_OP_SETPRESP */ {TTLV_T2, B_RESTV, " SetPropResp", recpdoptlv_print}, 262 /* F_OP_DEL */ {ZERO_TTLV, 0, " Del", recpdoptlv_print}, 263 /* F_OP_DELRESP */ {TTLV_T2, B_RESTV, " DelResp", recpdoptlv_print}, 264 /* F_OP_GET */ {ZERO_TTLV, 0, " Get", recpdoptlv_print}, 265 /* F_OP_GETPROP */ {ZERO_TTLV, 0, " GetProp", recpdoptlv_print}, 266 /* F_OP_GETRESP */ 267 {TTLV_T2, B_FULLD | B_SPARD | B_RESTV, " GetResp", recpdoptlv_print}, 268 /* F_OP_GETPRESP */ 269 {TTLV_T2, B_FULLD | B_RESTV, " GetPropResp", recpdoptlv_print}, 270 /* F_OP_REPORT */ 271 {TTLV_T2, B_FULLD | B_SPARD, " Report", recpdoptlv_print}, 272 /* F_OP_COMMIT */ {ZERO_TTLV, 0, " Commit", NULL}, 273 /* F_OP_RCOMMIT */ {TTLV_T1, B_RESTV, " RCommit", genoptlv_print}, 274 /* F_OP_RTRCOMP */ {ZERO_TTLV, 0, " RTRCOMP", NULL}, 275 }; 276 277 static inline const struct optlv_h *get_forces_optlv_h(uint16_t opt) 278 { 279 if (opt > F_OP_MAX || opt <= F_OP_RSV) 280 return &OPTLV_msg[F_OP_RSV]; 281 282 return &OPTLV_msg[opt]; 283 } 284 285 #define IND_SIZE 256 286 #define IND_CHR ' ' 287 #define IND_PREF '\n' 288 #define IND_SUF 0x0 289 char ind_buf[IND_SIZE]; 290 291 static inline char *indent_pr(int indent, int nlpref) 292 { 293 int i = 0; 294 char *r = ind_buf; 295 296 if (indent > (IND_SIZE - 1)) 297 indent = IND_SIZE - 1; 298 299 if (nlpref) { 300 r[i] = IND_PREF; 301 i++; 302 indent--; 303 } 304 305 while (--indent >= 0) 306 r[i++] = IND_CHR; 307 308 r[i] = IND_SUF; 309 return r; 310 } 311 312 static inline int op_valid(uint16_t op, uint16_t mask) 313 { 314 int opb = 1 << (op - 1); 315 316 if (op == 0) 317 return 0; 318 if (opb & mask) 319 return 1; 320 /* I guess we should allow vendor operations? */ 321 if (op >= 0x8000) 322 return 1; 323 return 0; 324 } 325 326 #define F_TLV_RSVD 0x0000 327 #define F_TLV_REDR 0x0001 328 #define F_TLV_ASRS 0x0010 329 #define F_TLV_ASRT 0x0011 330 #define F_TLV_LFBS 0x1000 331 #define F_TLV_PDAT 0x0110 332 #define F_TLV_KEYI 0x0111 333 #define F_TLV_FULD 0x0112 334 #define F_TLV_SPAD 0x0113 335 #define F_TLV_REST 0x0114 336 #define F_TLV_METD 0x0115 337 #define F_TLV_REDD 0x0116 338 #define F_TLV_TRNG 0x0117 339 340 341 #define F_TLV_VNST 0x8000 342 343 static const struct tok ForCES_TLV[] = { 344 {F_TLV_RSVD, "Invalid TLV"}, 345 {F_TLV_REDR, "REDIRECT TLV"}, 346 {F_TLV_ASRS, "ASResult TLV"}, 347 {F_TLV_ASRT, "ASTreason TLV"}, 348 {F_TLV_LFBS, "LFBselect TLV"}, 349 {F_TLV_PDAT, "PATH-DATA TLV"}, 350 {F_TLV_KEYI, "KEYINFO TLV"}, 351 {F_TLV_FULD, "FULLDATA TLV"}, 352 {F_TLV_SPAD, "SPARSEDATA TLV"}, 353 {F_TLV_REST, "RESULT TLV"}, 354 {F_TLV_METD, "METADATA TLV"}, 355 {F_TLV_REDD, "REDIRECTDATA TLV"}, 356 {0, NULL} 357 }; 358 359 #define TLV_HLN 4 360 static inline int ttlv_valid(uint16_t ttlv) 361 { 362 if (ttlv > 0) { 363 if (ttlv == 1 || ttlv == 0x1000) 364 return 1; 365 if (ttlv >= 0x10 && ttlv <= 0x11) 366 return 1; 367 if (ttlv >= 0x110 && ttlv <= 0x116) 368 return 1; 369 if (ttlv >= 0x8000) 370 return 0; /* XXX: */ 371 } 372 373 return 0; 374 } 375 376 struct forces_ilv { 377 uint32_t type; 378 uint32_t length; 379 }; 380 381 struct forces_tlv { 382 uint16_t type; 383 uint16_t length; 384 }; 385 386 #define F_ALN_LEN(len) ( ((len)+ForCES_ALNL-1) & ~(ForCES_ALNL-1) ) 387 #define GET_TOP_TLV(fhdr) ((struct forces_tlv *)((fhdr) + sizeof (struct forcesh))) 388 #define TLV_SET_LEN(len) (F_ALN_LEN(TLV_HDRL) + (len)) 389 #define TLV_ALN_LEN(len) F_ALN_LEN(TLV_SET_LEN(len)) 390 #define TLV_RDAT_LEN(tlv) ((int)(EXTRACT_16BITS(&(tlv)->length) - TLV_SET_LEN(0)) 391 #define TLV_DATA(tlvp) ((void*)(((char*)(tlvp)) + TLV_SET_LEN(0))) 392 #define GO_NXT_TLV(tlv,rlen) ((rlen) -= F_ALN_LEN(EXTRACT_16BITS(&(tlv)->length)), \ 393 (struct forces_tlv*)(((char*)(tlv)) \ 394 + F_ALN_LEN(EXTRACT_16BITS(&(tlv)->length)))) 395 #define ILV_SET_LEN(len) (F_ALN_LEN(ILV_HDRL) + (len)) 396 #define ILV_ALN_LEN(len) F_ALN_LEN(ILV_SET_LEN(len)) 397 #define ILV_RDAT_LEN(ilv) ((int)(EXTRACT_32BITS(&(ilv)->length)) - ILV_SET_LEN(0)) 398 #define ILV_DATA(ilvp) ((void*)(((char*)(ilvp)) + ILV_SET_LEN(0))) 399 #define GO_NXT_ILV(ilv,rlen) ((rlen) -= F_ALN_LEN(EXTRACT_32BITS(&(ilv)->length)), \ 400 (struct forces_ilv *)(((char*)(ilv)) \ 401 + F_ALN_LEN(EXTRACT_32BITS(&(ilv)->length)))) 402 #define INVALID_RLEN 1 403 #define INVALID_STLN 2 404 #define INVALID_LTLN 3 405 #define INVALID_ALEN 4 406 407 static const struct tok ForCES_TLV_err[] = { 408 {INVALID_RLEN, "Invalid total length"}, 409 {INVALID_STLN, "xLV too short"}, 410 {INVALID_LTLN, "xLV too long"}, 411 {INVALID_ALEN, "data padding missing"}, 412 {0, NULL} 413 }; 414 415 static inline u_int tlv_valid(const struct forces_tlv *tlv, u_int rlen) 416 { 417 if (rlen < TLV_HDRL) 418 return INVALID_RLEN; 419 if (EXTRACT_16BITS(&tlv->length) < TLV_HDRL) 420 return INVALID_STLN; 421 if (EXTRACT_16BITS(&tlv->length) > rlen) 422 return INVALID_LTLN; 423 if (rlen < F_ALN_LEN(EXTRACT_16BITS(&tlv->length))) 424 return INVALID_ALEN; 425 426 return 0; 427 } 428 429 static inline int ilv_valid(const struct forces_ilv *ilv, u_int rlen) 430 { 431 if (rlen < ILV_HDRL) 432 return INVALID_RLEN; 433 if (EXTRACT_32BITS(&ilv->length) < ILV_HDRL) 434 return INVALID_STLN; 435 if (EXTRACT_32BITS(&ilv->length) > rlen) 436 return INVALID_LTLN; 437 if (rlen < F_ALN_LEN(EXTRACT_32BITS(&ilv->length))) 438 return INVALID_ALEN; 439 440 return 0; 441 } 442 443 static int lfbselect_print(netdissect_options *, register const u_char * pptr, register u_int len, 444 uint16_t op_msk, int indent); 445 static int redirect_print(netdissect_options *, register const u_char * pptr, register u_int len, 446 uint16_t op_msk, int indent); 447 static int asrtlv_print(netdissect_options *, register const u_char * pptr, register u_int len, 448 uint16_t op_msk, int indent); 449 static int asttlv_print(netdissect_options *, register const u_char * pptr, register u_int len, 450 uint16_t op_msk, int indent); 451 452 struct forces_lfbsh { 453 uint32_t class; 454 uint32_t instance; 455 }; 456 457 #define ASSNS_OPS (B_OP_REPORT) 458 #define CFG_OPS (B_OP_SET|B_OP_SETPROP|B_OP_DEL|B_OP_COMMIT|B_OP_RTRCOMP) 459 #define CFG_ROPS (B_OP_SETRESP|B_OP_SETPRESP|B_OP_DELRESP|B_OP_RCOMMIT) 460 #define CFG_QY (B_OP_GET|B_OP_GETPROP) 461 #define CFG_QYR (B_OP_GETRESP|B_OP_GETPRESP) 462 #define CFG_EVN (B_OP_REPORT) 463 464 static const struct tom_h ForCES_msg[TOM_MAX_IND + 1] = { 465 /* TOM_RSV_I */ {TOM_RSVD, ZERO_TTLV, 0, "Invalid message", NULL}, 466 /* TOM_ASS_I */ {TOM_ASSNSETUP, ZERO_MORE_TTLV | TWO_TLV, ASSNS_OPS, 467 "Association Setup", lfbselect_print}, 468 /* TOM_AST_I */ 469 {TOM_ASSNTEARD, TTLV_T1, 0, "Association TearDown", asttlv_print}, 470 /* TOM_CFG_I */ {TOM_CONFIG, TTLV_T2, CFG_OPS, "Config", lfbselect_print}, 471 /* TOM_QRY_I */ {TOM_QUERY, TTLV_T2, CFG_QY, "Query", lfbselect_print}, 472 /* TOM_EVN_I */ {TOM_EVENTNOT, TTLV_T1, CFG_EVN, "Event Notification", 473 lfbselect_print}, 474 /* TOM_RED_I */ 475 {TOM_PKTREDIR, TTLV_T2, 0, "Packet Redirect", redirect_print}, 476 /* TOM_HBT_I */ {TOM_HEARTBT, ZERO_TTLV, 0, "HeartBeat", NULL}, 477 /* TOM_ASR_I */ 478 {TOM_ASSNSETREP, TTLV_T1, 0, "Association Response", asrtlv_print}, 479 /* TOM_CNR_I */ {TOM_CONFIGREP, TTLV_T2, CFG_ROPS, "Config Response", 480 lfbselect_print}, 481 /* TOM_QRR_I */ 482 {TOM_QUERYREP, TTLV_T2, CFG_QYR, "Query Response", lfbselect_print}, 483 }; 484 485 static inline const struct tom_h *get_forces_tom(uint8_t tom) 486 { 487 int i; 488 for (i = TOM_RSV_I; i <= TOM_MAX_IND; i++) { 489 const struct tom_h *th = &ForCES_msg[i]; 490 if (th->v == tom) 491 return th; 492 } 493 return &ForCES_msg[TOM_RSV_I]; 494 } 495 496 struct pdata_ops { 497 uint32_t v; 498 uint16_t flags; 499 uint16_t op_msk; 500 const char *s; 501 int (*print) (netdissect_options *, register const u_char * pptr, register u_int len, 502 uint16_t op_msk, int indent); 503 }; 504 505 enum { 506 PD_RSV_I, 507 PD_SEL_I, 508 PD_FDT_I, 509 PD_SDT_I, 510 PD_RES_I, 511 PD_PDT_I, 512 _PD_RSV_MAX 513 }; 514 #define PD_MAX_IND (_TOM_RSV_MAX - 1) 515 516 static inline int pd_valid(uint16_t pd) 517 { 518 if (pd >= F_TLV_PDAT && pd <= F_TLV_REST) 519 return 1; 520 return 0; 521 } 522 523 static inline void 524 chk_op_type(netdissect_options *ndo, 525 uint16_t type, uint16_t msk, uint16_t omsk) 526 { 527 if (type != F_TLV_PDAT) { 528 if (msk & B_KEYIN) { 529 if (type != F_TLV_KEYI) { 530 ND_PRINT((ndo, "Based on flags expected KEYINFO TLV!\n")); 531 } 532 } else { 533 if (!(msk & omsk)) { 534 ND_PRINT((ndo, "Illegal DATA encoding for type 0x%x programmed %x got %x \n", 535 type, omsk, msk)); 536 } 537 } 538 } 539 540 } 541 542 #define F_SELKEY 1 543 #define F_SELTABRANGE 2 544 #define F_TABAPPEND 4 545 546 struct res_val { 547 uint8_t result; 548 uint8_t resv1; 549 uint16_t resv2; 550 }; 551 552 static int prestlv_print(netdissect_options *, register const u_char * pptr, register u_int len, 553 uint16_t op_msk, int indent); 554 static int pkeyitlv_print(netdissect_options *, register const u_char * pptr, register u_int len, 555 uint16_t op_msk, int indent); 556 static int fdatatlv_print(netdissect_options *, register const u_char * pptr, register u_int len, 557 uint16_t op_msk, int indent); 558 static int sdatatlv_print(netdissect_options *, register const u_char * pptr, register u_int len, 559 uint16_t op_msk, int indent); 560 561 static const struct pdata_ops ForCES_pdata[PD_MAX_IND + 1] = { 562 /* PD_RSV_I */ {0, 0, 0, "Invalid message", NULL}, 563 /* PD_SEL_I */ {F_TLV_KEYI, 0, 0, "KEYINFO TLV", pkeyitlv_print}, 564 /* PD_FDT_I */ {F_TLV_FULD, 0, B_FULLD, "FULLDATA TLV", fdatatlv_print}, 565 /* PD_SDT_I */ {F_TLV_SPAD, 0, B_SPARD, "SPARSEDATA TLV", sdatatlv_print}, 566 /* PD_RES_I */ {F_TLV_REST, 0, B_RESTV, "RESULT TLV", prestlv_print}, 567 /* PD_PDT_I */ 568 {F_TLV_PDAT, 0, 0, "Inner PATH-DATA TLV", recpdoptlv_print}, 569 }; 570 571 static inline const struct pdata_ops *get_forces_pd(uint16_t pd) 572 { 573 int i; 574 for (i = PD_RSV_I + 1; i <= PD_MAX_IND; i++) { 575 const struct pdata_ops *pdo = &ForCES_pdata[i]; 576 if (pdo->v == pd) 577 return pdo; 578 } 579 return &ForCES_pdata[TOM_RSV_I]; 580 } 581 582 enum { 583 E_SUCCESS, 584 E_INVALID_HEADER, 585 E_LENGTH_MISMATCH, 586 E_VERSION_MISMATCH, 587 E_INVALID_DESTINATION_PID, 588 E_LFB_UNKNOWN, 589 E_LFB_NOT_FOUND, 590 E_LFB_INSTANCE_ID_NOT_FOUND, 591 E_INVALID_PATH, 592 E_COMPONENT_DOES_NOT_EXIST, 593 E_EXISTS, 594 E_NOT_FOUND, 595 E_READ_ONLY, 596 E_INVALID_ARRAY_CREATION, 597 E_VALUE_OUT_OF_RANGE, 598 E_CONTENTS_TOO_LONG, 599 E_INVALID_PARAMETERS, 600 E_INVALID_MESSAGE_TYPE, 601 E_INVALID_FLAGS, 602 E_INVALID_TLV, 603 E_EVENT_ERROR, 604 E_NOT_SUPPORTED, 605 E_MEMORY_ERROR, 606 E_INTERNAL_ERROR, 607 /* 0x18-0xFE are reserved .. */ 608 E_UNSPECIFIED_ERROR = 0XFF 609 }; 610 611 static const struct tok ForCES_errs[] = { 612 {E_SUCCESS, "SUCCESS"}, 613 {E_INVALID_HEADER, "INVALID HEADER"}, 614 {E_LENGTH_MISMATCH, "LENGTH MISMATCH"}, 615 {E_VERSION_MISMATCH, "VERSION MISMATCH"}, 616 {E_INVALID_DESTINATION_PID, "INVALID DESTINATION PID"}, 617 {E_LFB_UNKNOWN, "LFB UNKNOWN"}, 618 {E_LFB_NOT_FOUND, "LFB NOT FOUND"}, 619 {E_LFB_INSTANCE_ID_NOT_FOUND, "LFB INSTANCE ID NOT FOUND"}, 620 {E_INVALID_PATH, "INVALID PATH"}, 621 {E_COMPONENT_DOES_NOT_EXIST, "COMPONENT DOES NOT EXIST"}, 622 {E_EXISTS, "EXISTS ALREADY"}, 623 {E_NOT_FOUND, "NOT FOUND"}, 624 {E_READ_ONLY, "READ ONLY"}, 625 {E_INVALID_ARRAY_CREATION, "INVALID ARRAY CREATION"}, 626 {E_VALUE_OUT_OF_RANGE, "VALUE OUT OF RANGE"}, 627 {E_CONTENTS_TOO_LONG, "CONTENTS TOO LONG"}, 628 {E_INVALID_PARAMETERS, "INVALID PARAMETERS"}, 629 {E_INVALID_MESSAGE_TYPE, "INVALID MESSAGE TYPE"}, 630 {E_INVALID_FLAGS, "INVALID FLAGS"}, 631 {E_INVALID_TLV, "INVALID TLV"}, 632 {E_EVENT_ERROR, "EVENT ERROR"}, 633 {E_NOT_SUPPORTED, "NOT SUPPORTED"}, 634 {E_MEMORY_ERROR, "MEMORY ERROR"}, 635 {E_INTERNAL_ERROR, "INTERNAL ERROR"}, 636 {E_UNSPECIFIED_ERROR, "UNSPECIFIED ERROR"}, 637 {0, NULL} 638 }; 639 640 #define RESLEN 4 641 642 static int 643 prestlv_print(netdissect_options *ndo, 644 register const u_char * pptr, register u_int len, 645 uint16_t op_msk _U_, int indent) 646 { 647 const struct forces_tlv *tlv = (struct forces_tlv *)pptr; 648 register const u_char *tdp = (u_char *) TLV_DATA(tlv); 649 struct res_val *r = (struct res_val *)tdp; 650 u_int dlen; 651 652 /* 653 * pdatacnt_print() has ensured that len (the TLV length) 654 * >= TLV_HDRL. 655 */ 656 dlen = len - TLV_HDRL; 657 if (dlen != RESLEN) { 658 ND_PRINT((ndo, "illegal RESULT-TLV: %d bytes!\n", dlen)); 659 return -1; 660 } 661 662 ND_TCHECK(*r); 663 if (r->result >= 0x18 && r->result <= 0xFE) { 664 ND_PRINT((ndo, "illegal reserved result code: 0x%x!\n", r->result)); 665 return -1; 666 } 667 668 if (ndo->ndo_vflag >= 3) { 669 char *ib = indent_pr(indent, 0); 670 ND_PRINT((ndo, "%s Result: %s (code 0x%x)\n", ib, 671 tok2str(ForCES_errs, NULL, r->result), r->result)); 672 } 673 return 0; 674 675 trunc: 676 ND_PRINT((ndo, "%s", tstr)); 677 return -1; 678 } 679 680 static int 681 fdatatlv_print(netdissect_options *ndo, 682 register const u_char * pptr, register u_int len, 683 uint16_t op_msk _U_, int indent) 684 { 685 const struct forces_tlv *tlv = (struct forces_tlv *)pptr; 686 u_int rlen; 687 register const u_char *tdp = (u_char *) TLV_DATA(tlv); 688 uint16_t type; 689 690 /* 691 * pdatacnt_print() or pkeyitlv_print() has ensured that len 692 * (the TLV length) >= TLV_HDRL. 693 */ 694 rlen = len - TLV_HDRL; 695 ND_TCHECK(*tlv); 696 type = EXTRACT_16BITS(&tlv->type); 697 if (type != F_TLV_FULD) { 698 ND_PRINT((ndo, "Error: expecting FULLDATA!\n")); 699 return -1; 700 } 701 702 if (ndo->ndo_vflag >= 3) { 703 char *ib = indent_pr(indent + 2, 1); 704 ND_PRINT((ndo, "%s[", &ib[1])); 705 hex_print_with_offset(ndo, ib, tdp, rlen, 0); 706 ND_PRINT((ndo, "\n%s]\n", &ib[1])); 707 } 708 return 0; 709 710 trunc: 711 ND_PRINT((ndo, "%s", tstr)); 712 return -1; 713 } 714 715 static int 716 sdatailv_print(netdissect_options *ndo, 717 register const u_char * pptr, register u_int len, 718 uint16_t op_msk _U_, int indent) 719 { 720 u_int rlen; 721 const struct forces_ilv *ilv = (struct forces_ilv *)pptr; 722 int invilv; 723 724 if (len < ILV_HDRL) { 725 ND_PRINT((ndo, "Error: BAD SPARSEDATA-TLV!\n")); 726 return -1; 727 } 728 rlen = len; 729 indent += 1; 730 while (rlen != 0) { 731 #if 0 732 ND_PRINT((ndo, "Jamal - outstanding length <%d>\n", rlen)); 733 #endif 734 char *ib = indent_pr(indent, 1); 735 register const u_char *tdp = (u_char *) ILV_DATA(ilv); 736 ND_TCHECK(*ilv); 737 invilv = ilv_valid(ilv, rlen); 738 if (invilv) { 739 ND_PRINT((ndo, "%s[", &ib[1])); 740 hex_print_with_offset(ndo, ib, tdp, rlen, 0); 741 ND_PRINT((ndo, "\n%s]\n", &ib[1])); 742 return -1; 743 } 744 if (ndo->ndo_vflag >= 3) { 745 int ilvl = EXTRACT_32BITS(&ilv->length); 746 ND_PRINT((ndo, "\n%s ILV: type %x length %d\n", &ib[1], 747 EXTRACT_32BITS(&ilv->type), ilvl)); 748 hex_print_with_offset(ndo, "\t\t[", tdp, ilvl-ILV_HDRL, 0); 749 } 750 751 ilv = GO_NXT_ILV(ilv, rlen); 752 } 753 754 return 0; 755 756 trunc: 757 ND_PRINT((ndo, "%s", tstr)); 758 return -1; 759 } 760 761 static int 762 sdatatlv_print(netdissect_options *ndo, 763 register const u_char * pptr, register u_int len, 764 uint16_t op_msk, int indent) 765 { 766 const struct forces_tlv *tlv = (struct forces_tlv *)pptr; 767 u_int rlen; 768 register const u_char *tdp = (u_char *) TLV_DATA(tlv); 769 uint16_t type; 770 771 /* 772 * pdatacnt_print() has ensured that len (the TLV length) 773 * >= TLV_HDRL. 774 */ 775 rlen = len - TLV_HDRL; 776 ND_TCHECK(*tlv); 777 type = EXTRACT_16BITS(&tlv->type); 778 if (type != F_TLV_SPAD) { 779 ND_PRINT((ndo, "Error: expecting SPARSEDATA!\n")); 780 return -1; 781 } 782 783 return sdatailv_print(ndo, tdp, rlen, op_msk, indent); 784 785 trunc: 786 ND_PRINT((ndo, "%s", tstr)); 787 return -1; 788 } 789 790 static int 791 pkeyitlv_print(netdissect_options *ndo, 792 register const u_char * pptr, register u_int len, 793 uint16_t op_msk, int indent) 794 { 795 const struct forces_tlv *tlv = (struct forces_tlv *)pptr; 796 register const u_char *tdp = (u_char *) TLV_DATA(tlv); 797 register const u_char *dp = tdp + 4; 798 const struct forces_tlv *kdtlv = (struct forces_tlv *)dp; 799 uint32_t id; 800 char *ib = indent_pr(indent, 0); 801 uint16_t type, tll; 802 u_int invtlv; 803 804 ND_TCHECK(*tdp); 805 id = EXTRACT_32BITS(tdp); 806 ND_PRINT((ndo, "%sKeyinfo: Key 0x%x\n", ib, id)); 807 ND_TCHECK(*kdtlv); 808 type = EXTRACT_16BITS(&kdtlv->type); 809 invtlv = tlv_valid(kdtlv, len); 810 811 if (invtlv) { 812 ND_PRINT((ndo, "%s TLV type 0x%x len %d\n", 813 tok2str(ForCES_TLV_err, NULL, invtlv), type, 814 EXTRACT_16BITS(&kdtlv->length))); 815 return -1; 816 } 817 /* 818 * At this point, tlv_valid() has ensured that the TLV 819 * length is large enough but not too large (it doesn't 820 * go past the end of the containing TLV). 821 */ 822 tll = EXTRACT_16BITS(&kdtlv->length); 823 dp = (u_char *) TLV_DATA(kdtlv); 824 return fdatatlv_print(ndo, dp, tll, op_msk, indent); 825 826 trunc: 827 ND_PRINT((ndo, "%s", tstr)); 828 return -1; 829 } 830 831 #define PTH_DESC_SIZE 12 832 833 static int 834 pdatacnt_print(netdissect_options *ndo, 835 register const u_char * pptr, register u_int len, 836 uint16_t IDcnt, uint16_t op_msk, int indent) 837 { 838 u_int i; 839 uint32_t id; 840 char *ib = indent_pr(indent, 0); 841 842 if ((op_msk & B_APPND) && ndo->ndo_vflag >= 3) { 843 ND_PRINT((ndo, "%sTABLE APPEND\n", ib)); 844 } 845 for (i = 0; i < IDcnt; i++) { 846 ND_TCHECK2(*pptr, 4); 847 if (len < 4) 848 goto trunc; 849 id = EXTRACT_32BITS(pptr); 850 if (ndo->ndo_vflag >= 3) 851 ND_PRINT((ndo, "%sID#%02u: %d\n", ib, i + 1, id)); 852 len -= 4; 853 pptr += 4; 854 } 855 856 if ((op_msk & B_TRNG) || (op_msk & B_KEYIN)) { 857 if (op_msk & B_TRNG) { 858 uint32_t starti, endi; 859 860 if (len < PTH_DESC_SIZE) { 861 ND_PRINT((ndo, "pathlength %d with key/range too short %d\n", 862 len, PTH_DESC_SIZE)); 863 return -1; 864 } 865 866 pptr += sizeof(struct forces_tlv); 867 len -= sizeof(struct forces_tlv); 868 869 starti = EXTRACT_32BITS(pptr); 870 pptr += 4; 871 len -= 4; 872 873 endi = EXTRACT_32BITS(pptr); 874 pptr += 4; 875 len -= 4; 876 877 if (ndo->ndo_vflag >= 3) 878 ND_PRINT((ndo, "%sTable range: [%d,%d]\n", ib, starti, endi)); 879 } 880 881 if (op_msk & B_KEYIN) { 882 struct forces_tlv *keytlv; 883 uint16_t tll; 884 885 if (len < PTH_DESC_SIZE) { 886 ND_PRINT((ndo, "pathlength %d with key/range too short %d\n", 887 len, PTH_DESC_SIZE)); 888 return -1; 889 } 890 891 /* skip keyid */ 892 pptr += 4; 893 len -= 4; 894 keytlv = (struct forces_tlv *)pptr; 895 /* skip header */ 896 pptr += sizeof(struct forces_tlv); 897 len -= sizeof(struct forces_tlv); 898 /* skip key content */ 899 tll = EXTRACT_16BITS(&keytlv->length); 900 if (tll < TLV_HDRL) { 901 ND_PRINT((ndo, "key content length %u < %u\n", 902 tll, TLV_HDRL)); 903 return -1; 904 } 905 tll -= TLV_HDRL; 906 if (len < tll) { 907 ND_PRINT((ndo, "key content too short\n")); 908 return -1; 909 } 910 pptr += tll; 911 len -= tll; 912 } 913 914 } 915 916 if (len) { 917 const struct forces_tlv *pdtlv = (struct forces_tlv *)pptr; 918 uint16_t type; 919 uint16_t tll; 920 int pad = 0; 921 u_int aln; 922 u_int invtlv; 923 924 ND_TCHECK(*pdtlv); 925 type = EXTRACT_16BITS(&pdtlv->type); 926 invtlv = tlv_valid(pdtlv, len); 927 if (invtlv) { 928 ND_PRINT((ndo, "%s Outstanding bytes %d for TLV type 0x%x TLV len %d\n", 929 tok2str(ForCES_TLV_err, NULL, invtlv), len, type, 930 EXTRACT_16BITS(&pdtlv->length))); 931 goto pd_err; 932 } 933 /* 934 * At this point, tlv_valid() has ensured that the TLV 935 * length is large enough but not too large (it doesn't 936 * go past the end of the containing TLV). 937 */ 938 tll = EXTRACT_16BITS(&pdtlv->length) - TLV_HDRL; 939 aln = F_ALN_LEN(EXTRACT_16BITS(&pdtlv->length)); 940 if (aln > EXTRACT_16BITS(&pdtlv->length)) { 941 if (aln > len) { 942 ND_PRINT((ndo, 943 "Invalid padded pathdata TLV type 0x%x len %d missing %d pad bytes\n", 944 type, EXTRACT_16BITS(&pdtlv->length), aln - len)); 945 } else { 946 pad = aln - EXTRACT_16BITS(&pdtlv->length); 947 } 948 } 949 if (pd_valid(type)) { 950 const struct pdata_ops *ops = get_forces_pd(type); 951 952 if (ndo->ndo_vflag >= 3 && ops->v != F_TLV_PDAT) { 953 if (pad) 954 ND_PRINT((ndo, "%s %s (Length %d DataLen %d pad %d Bytes)\n", 955 ib, ops->s, EXTRACT_16BITS(&pdtlv->length), tll, pad)); 956 else 957 ND_PRINT((ndo, "%s %s (Length %d DataLen %d Bytes)\n", 958 ib, ops->s, EXTRACT_16BITS(&pdtlv->length), tll)); 959 } 960 961 chk_op_type(ndo, type, op_msk, ops->op_msk); 962 963 if (ops->print(ndo, (const u_char *)pdtlv, 964 tll + pad + TLV_HDRL, op_msk, 965 indent + 2) == -1) 966 return -1; 967 len -= (TLV_HDRL + pad + tll); 968 } else { 969 ND_PRINT((ndo, "Invalid path data content type 0x%x len %d\n", 970 type, EXTRACT_16BITS(&pdtlv->length))); 971 pd_err: 972 if (EXTRACT_16BITS(&pdtlv->length)) { 973 hex_print_with_offset(ndo, "Bad Data val\n\t [", 974 pptr, len, 0); 975 ND_PRINT((ndo, "]\n")); 976 977 return -1; 978 } 979 } 980 } 981 return len; 982 983 trunc: 984 ND_PRINT((ndo, "%s", tstr)); 985 return -1; 986 } 987 988 static int 989 pdata_print(netdissect_options *ndo, 990 register const u_char * pptr, register u_int len, 991 uint16_t op_msk, int indent) 992 { 993 const struct pathdata_h *pdh = (struct pathdata_h *)pptr; 994 char *ib = indent_pr(indent, 0); 995 u_int minsize = 0; 996 int more_pd = 0; 997 uint16_t idcnt = 0; 998 999 ND_TCHECK(*pdh); 1000 if (len < sizeof(struct pathdata_h)) 1001 goto trunc; 1002 if (ndo->ndo_vflag >= 3) { 1003 ND_PRINT((ndo, "\n%sPathdata: Flags 0x%x ID count %d\n", 1004 ib, EXTRACT_16BITS(&pdh->pflags), EXTRACT_16BITS(&pdh->pIDcnt))); 1005 } 1006 1007 if (EXTRACT_16BITS(&pdh->pflags) & F_SELKEY) { 1008 op_msk |= B_KEYIN; 1009 } 1010 1011 /* Table GET Range operation */ 1012 if (EXTRACT_16BITS(&pdh->pflags) & F_SELTABRANGE) { 1013 op_msk |= B_TRNG; 1014 } 1015 /* Table SET append operation */ 1016 if (EXTRACT_16BITS(&pdh->pflags) & F_TABAPPEND) { 1017 op_msk |= B_APPND; 1018 } 1019 1020 pptr += sizeof(struct pathdata_h); 1021 len -= sizeof(struct pathdata_h); 1022 idcnt = EXTRACT_16BITS(&pdh->pIDcnt); 1023 minsize = idcnt * 4; 1024 if (len < minsize) { 1025 ND_PRINT((ndo, "\t\t\ttruncated IDs expected %uB got %uB\n", minsize, 1026 len)); 1027 hex_print_with_offset(ndo, "\t\t\tID Data[", pptr, len, 0); 1028 ND_PRINT((ndo, "]\n")); 1029 return -1; 1030 } 1031 1032 if ((op_msk & B_TRNG) && (op_msk & B_KEYIN)) { 1033 ND_PRINT((ndo, "\t\t\tIllegal to have both Table ranges and keys\n")); 1034 return -1; 1035 } 1036 1037 more_pd = pdatacnt_print(ndo, pptr, len, idcnt, op_msk, indent); 1038 if (more_pd > 0) { 1039 int consumed = len - more_pd; 1040 pptr += consumed; 1041 len = more_pd; 1042 /* XXX: Argh, recurse some more */ 1043 return recpdoptlv_print(ndo, pptr, len, op_msk, indent+1); 1044 } else 1045 return 0; 1046 1047 trunc: 1048 ND_PRINT((ndo, "%s", tstr)); 1049 return -1; 1050 } 1051 1052 static int 1053 genoptlv_print(netdissect_options *ndo, 1054 register const u_char * pptr, register u_int len, 1055 uint16_t op_msk, int indent) 1056 { 1057 const struct forces_tlv *pdtlv = (struct forces_tlv *)pptr; 1058 uint16_t type; 1059 int tll; 1060 u_int invtlv; 1061 char *ib = indent_pr(indent, 0); 1062 1063 ND_TCHECK(*pdtlv); 1064 type = EXTRACT_16BITS(&pdtlv->type); 1065 tll = EXTRACT_16BITS(&pdtlv->length) - TLV_HDRL; 1066 invtlv = tlv_valid(pdtlv, len); 1067 ND_PRINT((ndo, "genoptlvprint - %s TLV type 0x%x len %d\n", 1068 tok2str(ForCES_TLV, NULL, type), type, EXTRACT_16BITS(&pdtlv->length))); 1069 if (!invtlv) { 1070 /* 1071 * At this point, tlv_valid() has ensured that the TLV 1072 * length is large enough but not too large (it doesn't 1073 * go past the end of the containing TLV). 1074 */ 1075 register const u_char *dp = (u_char *) TLV_DATA(pdtlv); 1076 if (!ttlv_valid(type)) { 1077 ND_PRINT((ndo, "%s TLV type 0x%x len %d\n", 1078 tok2str(ForCES_TLV_err, NULL, invtlv), type, 1079 EXTRACT_16BITS(&pdtlv->length))); 1080 return -1; 1081 } 1082 if (ndo->ndo_vflag >= 3) 1083 ND_PRINT((ndo, "%s%s, length %d (data length %d Bytes)", 1084 ib, tok2str(ForCES_TLV, NULL, type), 1085 EXTRACT_16BITS(&pdtlv->length), tll)); 1086 1087 return pdata_print(ndo, dp, tll, op_msk, indent + 1); 1088 } else { 1089 ND_PRINT((ndo, "\t\t\tInvalid ForCES TLV type=%x", type)); 1090 return -1; 1091 } 1092 1093 trunc: 1094 ND_PRINT((ndo, "%s", tstr)); 1095 return -1; 1096 } 1097 1098 static int 1099 recpdoptlv_print(netdissect_options *ndo, 1100 register const u_char * pptr, register u_int len, 1101 uint16_t op_msk, int indent) 1102 { 1103 const struct forces_tlv *pdtlv = (struct forces_tlv *)pptr; 1104 int tll; 1105 u_int invtlv; 1106 uint16_t type; 1107 register const u_char *dp; 1108 char *ib; 1109 1110 while (len != 0) { 1111 ND_TCHECK(*pdtlv); 1112 invtlv = tlv_valid(pdtlv, len); 1113 if (invtlv) { 1114 break; 1115 } 1116 1117 /* 1118 * At this point, tlv_valid() has ensured that the TLV 1119 * length is large enough but not too large (it doesn't 1120 * go past the end of the containing TLV). 1121 */ 1122 ib = indent_pr(indent, 0); 1123 type = EXTRACT_16BITS(&pdtlv->type); 1124 dp = (u_char *) TLV_DATA(pdtlv); 1125 tll = EXTRACT_16BITS(&pdtlv->length) - TLV_HDRL; 1126 1127 if (ndo->ndo_vflag >= 3) 1128 ND_PRINT((ndo, "%s%s, length %d (data encapsulated %d Bytes)", 1129 ib, tok2str(ForCES_TLV, NULL, type), 1130 EXTRACT_16BITS(&pdtlv->length), 1131 EXTRACT_16BITS(&pdtlv->length) - TLV_HDRL)); 1132 1133 if (pdata_print(ndo, dp, tll, op_msk, indent + 1) == -1) 1134 return -1; 1135 pdtlv = GO_NXT_TLV(pdtlv, len); 1136 } 1137 1138 if (len) { 1139 ND_PRINT((ndo, 1140 "\n\t\tMessy PATHDATA TLV header, type (0x%x)\n\t\texcess of %d Bytes ", 1141 EXTRACT_16BITS(&pdtlv->type), len - EXTRACT_16BITS(&pdtlv->length))); 1142 return -1; 1143 } 1144 1145 return 0; 1146 1147 trunc: 1148 ND_PRINT((ndo, "%s", tstr)); 1149 return -1; 1150 } 1151 1152 static int 1153 invoptlv_print(netdissect_options *ndo, 1154 register const u_char * pptr, register u_int len, 1155 uint16_t op_msk _U_, int indent) 1156 { 1157 char *ib = indent_pr(indent, 1); 1158 1159 if (ndo->ndo_vflag >= 3) { 1160 ND_PRINT((ndo, "%sData[", &ib[1])); 1161 hex_print_with_offset(ndo, ib, pptr, len, 0); 1162 ND_PRINT((ndo, "%s]\n", ib)); 1163 } 1164 return -1; 1165 } 1166 1167 static int 1168 otlv_print(netdissect_options *ndo, 1169 const struct forces_tlv *otlv, uint16_t op_msk _U_, int indent) 1170 { 1171 int rc = 0; 1172 register const u_char *dp = (u_char *) TLV_DATA(otlv); 1173 uint16_t type; 1174 int tll; 1175 char *ib = indent_pr(indent, 0); 1176 const struct optlv_h *ops; 1177 1178 /* 1179 * lfbselect_print() has ensured that EXTRACT_16BITS(&otlv->length) 1180 * >= TLV_HDRL. 1181 */ 1182 ND_TCHECK(*otlv); 1183 type = EXTRACT_16BITS(&otlv->type); 1184 tll = EXTRACT_16BITS(&otlv->length) - TLV_HDRL; 1185 ops = get_forces_optlv_h(type); 1186 if (ndo->ndo_vflag >= 3) { 1187 ND_PRINT((ndo, "%sOper TLV %s(0x%x) length %d\n", ib, ops->s, type, 1188 EXTRACT_16BITS(&otlv->length))); 1189 } 1190 /* empty TLVs like COMMIT and TRCOMMIT are empty, we stop here .. */ 1191 if (!ops->flags & ZERO_TTLV) { 1192 if (tll != 0) /* instead of "if (tll)" - for readability .. */ 1193 ND_PRINT((ndo, "%s: Illegal - MUST be empty\n", ops->s)); 1194 return rc; 1195 } 1196 /* rest of ops must at least have 12B {pathinfo} */ 1197 if (tll < OP_MIN_SIZ) { 1198 ND_PRINT((ndo, "\t\tOper TLV %s(0x%x) length %d\n", ops->s, type, 1199 EXTRACT_16BITS(&otlv->length))); 1200 ND_PRINT((ndo, "\t\tTruncated data size %d minimum required %d\n", tll, 1201 OP_MIN_SIZ)); 1202 return invoptlv_print(ndo, dp, tll, ops->op_msk, indent); 1203 1204 } 1205 1206 rc = ops->print(ndo, dp, tll, ops->op_msk, indent + 1); 1207 return rc; 1208 1209 trunc: 1210 ND_PRINT((ndo, "%s", tstr)); 1211 return -1; 1212 } 1213 1214 #define ASTDLN 4 1215 #define ASTMCD 255 1216 static int 1217 asttlv_print(netdissect_options *ndo, 1218 register const u_char * pptr, register u_int len, 1219 uint16_t op_msk _U_, int indent) 1220 { 1221 uint32_t rescode; 1222 u_int dlen; 1223 char *ib = indent_pr(indent, 0); 1224 1225 /* 1226 * forces_type_print() has ensured that len (the TLV length) 1227 * >= TLV_HDRL. 1228 */ 1229 dlen = len - TLV_HDRL; 1230 if (dlen != ASTDLN) { 1231 ND_PRINT((ndo, "illegal ASTresult-TLV: %d bytes!\n", dlen)); 1232 return -1; 1233 } 1234 ND_TCHECK2(*pptr, 4); 1235 rescode = EXTRACT_32BITS(pptr); 1236 if (rescode > ASTMCD) { 1237 ND_PRINT((ndo, "illegal ASTresult result code: %d!\n", rescode)); 1238 return -1; 1239 } 1240 1241 if (ndo->ndo_vflag >= 3) { 1242 ND_PRINT((ndo, "Teardown reason:\n%s", ib)); 1243 switch (rescode) { 1244 case 0: 1245 ND_PRINT((ndo, "Normal Teardown")); 1246 break; 1247 case 1: 1248 ND_PRINT((ndo, "Loss of Heartbeats")); 1249 break; 1250 case 2: 1251 ND_PRINT((ndo, "Out of bandwidth")); 1252 break; 1253 case 3: 1254 ND_PRINT((ndo, "Out of Memory")); 1255 break; 1256 case 4: 1257 ND_PRINT((ndo, "Application Crash")); 1258 break; 1259 default: 1260 ND_PRINT((ndo, "Unknown Teardown reason")); 1261 break; 1262 } 1263 ND_PRINT((ndo, "(%x)\n%s", rescode, ib)); 1264 } 1265 return 0; 1266 1267 trunc: 1268 ND_PRINT((ndo, "%s", tstr)); 1269 return -1; 1270 } 1271 1272 #define ASRDLN 4 1273 #define ASRMCD 3 1274 static int 1275 asrtlv_print(netdissect_options *ndo, 1276 register const u_char * pptr, register u_int len, 1277 uint16_t op_msk _U_, int indent) 1278 { 1279 uint32_t rescode; 1280 u_int dlen; 1281 char *ib = indent_pr(indent, 0); 1282 1283 /* 1284 * forces_type_print() has ensured that len (the TLV length) 1285 * >= TLV_HDRL. 1286 */ 1287 dlen = len - TLV_HDRL; 1288 if (dlen != ASRDLN) { /* id, instance, oper tlv */ 1289 ND_PRINT((ndo, "illegal ASRresult-TLV: %d bytes!\n", dlen)); 1290 return -1; 1291 } 1292 ND_TCHECK2(*pptr, 4); 1293 rescode = EXTRACT_32BITS(pptr); 1294 1295 if (rescode > ASRMCD) { 1296 ND_PRINT((ndo, "illegal ASRresult result code: %d!\n", rescode)); 1297 return -1; 1298 } 1299 1300 if (ndo->ndo_vflag >= 3) { 1301 ND_PRINT((ndo, "\n%s", ib)); 1302 switch (rescode) { 1303 case 0: 1304 ND_PRINT((ndo, "Success ")); 1305 break; 1306 case 1: 1307 ND_PRINT((ndo, "FE ID invalid ")); 1308 break; 1309 case 2: 1310 ND_PRINT((ndo, "permission denied ")); 1311 break; 1312 default: 1313 ND_PRINT((ndo, "Unknown ")); 1314 break; 1315 } 1316 ND_PRINT((ndo, "(%x)\n%s", rescode, ib)); 1317 } 1318 return 0; 1319 1320 trunc: 1321 ND_PRINT((ndo, "%s", tstr)); 1322 return -1; 1323 } 1324 1325 #if 0 1326 /* 1327 * XXX - not used. 1328 */ 1329 static int 1330 gentltlv_print(netdissect_options *ndo, 1331 register const u_char * pptr _U_, register u_int len, 1332 uint16_t op_msk _U_, int indent _U_) 1333 { 1334 u_int dlen = len - TLV_HDRL; 1335 1336 if (dlen < 4) { /* at least 32 bits must exist */ 1337 ND_PRINT((ndo, "truncated TLV: %d bytes missing! ", 4 - dlen)); 1338 return -1; 1339 } 1340 return 0; 1341 } 1342 #endif 1343 1344 #define RD_MIN 8 1345 1346 static int 1347 print_metailv(netdissect_options *ndo, 1348 register const u_char * pptr, uint16_t op_msk _U_, int indent) 1349 { 1350 u_int rlen; 1351 char *ib = indent_pr(indent, 0); 1352 /* XXX: check header length */ 1353 const struct forces_ilv *ilv = (struct forces_ilv *)pptr; 1354 1355 /* 1356 * print_metatlv() has ensured that len (what remains in the 1357 * ILV) >= ILV_HDRL. 1358 */ 1359 rlen = EXTRACT_32BITS(&ilv->length) - ILV_HDRL; 1360 ND_TCHECK(*ilv); 1361 ND_PRINT((ndo, "%sMetaID 0x%x length %d\n", ib, EXTRACT_32BITS(&ilv->type), 1362 EXTRACT_32BITS(&ilv->length))); 1363 if (ndo->ndo_vflag >= 3) { 1364 hex_print_with_offset(ndo, "\t\t[", ILV_DATA(ilv), rlen, 0); 1365 ND_PRINT((ndo, " ]\n")); 1366 } 1367 return 0; 1368 1369 trunc: 1370 ND_PRINT((ndo, "%s", tstr)); 1371 return -1; 1372 } 1373 1374 static int 1375 print_metatlv(netdissect_options *ndo, 1376 register const u_char * pptr, register u_int len, 1377 uint16_t op_msk _U_, int indent) 1378 { 1379 u_int dlen; 1380 char *ib = indent_pr(indent, 0); 1381 u_int rlen; 1382 const struct forces_ilv *ilv = (struct forces_ilv *)pptr; 1383 int invilv; 1384 1385 /* 1386 * redirect_print() has ensured that len (what remains in the 1387 * TLV) >= TLV_HDRL. 1388 */ 1389 dlen = len - TLV_HDRL; 1390 rlen = dlen; 1391 ND_PRINT((ndo, "\n%s METADATA length %d \n", ib, rlen)); 1392 while (rlen != 0) { 1393 ND_TCHECK(*ilv); 1394 invilv = ilv_valid(ilv, rlen); 1395 if (invilv) { 1396 break; 1397 } 1398 1399 /* 1400 * At this point, ilv_valid() has ensured that the ILV 1401 * length is large enough but not too large (it doesn't 1402 * go past the end of the containing TLV). 1403 */ 1404 print_metailv(ndo, (u_char *) ilv, 0, indent + 1); 1405 ilv = GO_NXT_ILV(ilv, rlen); 1406 } 1407 1408 return 0; 1409 1410 trunc: 1411 ND_PRINT((ndo, "%s", tstr)); 1412 return -1; 1413 } 1414 1415 1416 static int 1417 print_reddata(netdissect_options *ndo, 1418 register const u_char * pptr, register u_int len, 1419 uint16_t op_msk _U_, int indent _U_) 1420 { 1421 u_int dlen; 1422 char *ib = indent_pr(indent, 0); 1423 u_int rlen; 1424 1425 dlen = len - TLV_HDRL; 1426 rlen = dlen; 1427 ND_PRINT((ndo, "\n%s Redirect Data length %d \n", ib, rlen)); 1428 1429 if (ndo->ndo_vflag >= 3) { 1430 ND_PRINT((ndo, "\t\t[")); 1431 hex_print_with_offset(ndo, "\n\t\t", pptr, rlen, 0); 1432 ND_PRINT((ndo, "\n\t\t]")); 1433 } 1434 1435 return 0; 1436 } 1437 1438 static int 1439 redirect_print(netdissect_options *ndo, 1440 register const u_char * pptr, register u_int len, 1441 uint16_t op_msk _U_, int indent) 1442 { 1443 const struct forces_tlv *tlv = (struct forces_tlv *)pptr; 1444 u_int dlen; 1445 u_int rlen; 1446 u_int invtlv; 1447 1448 /* 1449 * forces_type_print() has ensured that len (the TLV length) 1450 * >= TLV_HDRL. 1451 */ 1452 dlen = len - TLV_HDRL; 1453 if (dlen <= RD_MIN) { 1454 ND_PRINT((ndo, "\n\t\ttruncated Redirect TLV: %d bytes missing! ", 1455 RD_MIN - dlen)); 1456 return -1; 1457 } 1458 1459 rlen = dlen; 1460 indent += 1; 1461 while (rlen != 0) { 1462 ND_TCHECK(*tlv); 1463 invtlv = tlv_valid(tlv, rlen); 1464 if (invtlv) { 1465 ND_PRINT((ndo, "Bad Redirect data\n")); 1466 break; 1467 } 1468 1469 /* 1470 * At this point, tlv_valid() has ensured that the TLV 1471 * length is large enough but not too large (it doesn't 1472 * go past the end of the containing TLV). 1473 */ 1474 if (EXTRACT_16BITS(&tlv->type) == F_TLV_METD) { 1475 print_metatlv(ndo, (u_char *) TLV_DATA(tlv), 1476 EXTRACT_16BITS(&tlv->length), 0, indent); 1477 } else if ((EXTRACT_16BITS(&tlv->type) == F_TLV_REDD)) { 1478 print_reddata(ndo, (u_char *) TLV_DATA(tlv), 1479 EXTRACT_16BITS(&tlv->length), 0, indent); 1480 } else { 1481 ND_PRINT((ndo, "Unknown REDIRECT TLV 0x%x len %d\n", 1482 EXTRACT_16BITS(&tlv->type), 1483 EXTRACT_16BITS(&tlv->length))); 1484 } 1485 1486 tlv = GO_NXT_TLV(tlv, rlen); 1487 } 1488 1489 if (rlen) { 1490 ND_PRINT((ndo, 1491 "\n\t\tMessy Redirect TLV header, type (0x%x)\n\t\texcess of %d Bytes ", 1492 EXTRACT_16BITS(&tlv->type), 1493 rlen - EXTRACT_16BITS(&tlv->length))); 1494 return -1; 1495 } 1496 1497 return 0; 1498 1499 trunc: 1500 ND_PRINT((ndo, "%s", tstr)); 1501 return -1; 1502 } 1503 1504 #define OP_OFF 8 1505 #define OP_MIN 12 1506 1507 static int 1508 lfbselect_print(netdissect_options *ndo, 1509 register const u_char * pptr, register u_int len, 1510 uint16_t op_msk, int indent) 1511 { 1512 const struct forces_lfbsh *lfbs; 1513 const struct forces_tlv *otlv; 1514 char *ib = indent_pr(indent, 0); 1515 u_int dlen; 1516 u_int rlen; 1517 u_int invtlv; 1518 1519 /* 1520 * forces_type_print() has ensured that len (the TLV length) 1521 * >= TLV_HDRL. 1522 */ 1523 dlen = len - TLV_HDRL; 1524 if (dlen <= OP_MIN) { /* id, instance, oper tlv header .. */ 1525 ND_PRINT((ndo, "\n\t\ttruncated lfb selector: %d bytes missing! ", 1526 OP_MIN - dlen)); 1527 return -1; 1528 } 1529 1530 /* 1531 * At this point, we know that dlen > OP_MIN; OP_OFF < OP_MIN, so 1532 * we also know that it's > OP_OFF. 1533 */ 1534 rlen = dlen - OP_OFF; 1535 1536 lfbs = (const struct forces_lfbsh *)pptr; 1537 ND_TCHECK(*lfbs); 1538 if (ndo->ndo_vflag >= 3) { 1539 ND_PRINT((ndo, "\n%s%s(Classid %x) instance %x\n", 1540 ib, tok2str(ForCES_LFBs, NULL, EXTRACT_32BITS(&lfbs->class)), 1541 EXTRACT_32BITS(&lfbs->class), 1542 EXTRACT_32BITS(&lfbs->instance))); 1543 } 1544 1545 otlv = (struct forces_tlv *)(lfbs + 1); 1546 1547 indent += 1; 1548 while (rlen != 0) { 1549 ND_TCHECK(*otlv); 1550 invtlv = tlv_valid(otlv, rlen); 1551 if (invtlv) 1552 break; 1553 1554 /* 1555 * At this point, tlv_valid() has ensured that the TLV 1556 * length is large enough but not too large (it doesn't 1557 * go past the end of the containing TLV). 1558 */ 1559 if (op_valid(EXTRACT_16BITS(&otlv->type), op_msk)) { 1560 otlv_print(ndo, otlv, 0, indent); 1561 } else { 1562 if (ndo->ndo_vflag < 3) 1563 ND_PRINT((ndo, "\n")); 1564 ND_PRINT((ndo, 1565 "\t\tINValid oper-TLV type 0x%x length %d for this ForCES message\n", 1566 EXTRACT_16BITS(&otlv->type), EXTRACT_16BITS(&otlv->length))); 1567 invoptlv_print(ndo, (u_char *)otlv, rlen, 0, indent); 1568 } 1569 otlv = GO_NXT_TLV(otlv, rlen); 1570 } 1571 1572 if (rlen) { 1573 ND_PRINT((ndo, 1574 "\n\t\tMessy oper TLV header, type (0x%x)\n\t\texcess of %d Bytes ", 1575 EXTRACT_16BITS(&otlv->type), rlen - EXTRACT_16BITS(&otlv->length))); 1576 return -1; 1577 } 1578 1579 return 0; 1580 1581 trunc: 1582 ND_PRINT((ndo, "%s", tstr)); 1583 return -1; 1584 } 1585 1586 static int 1587 forces_type_print(netdissect_options *ndo, 1588 register const u_char * pptr, const struct forcesh *fhdr _U_, 1589 register u_int mlen, const struct tom_h *tops) 1590 { 1591 const struct forces_tlv *tltlv; 1592 u_int rlen; 1593 u_int invtlv; 1594 int rc = 0; 1595 int ttlv = 0; 1596 1597 /* 1598 * forces_print() has already checked that mlen >= ForCES_HDRL 1599 * by calling ForCES_HLN_VALID(). 1600 */ 1601 rlen = mlen - ForCES_HDRL; 1602 1603 if (rlen > TLV_HLN) { 1604 if (tops->flags & ZERO_TTLV) { 1605 ND_PRINT((ndo, "<0x%x>Illegal Top level TLV!\n", tops->flags)); 1606 return -1; 1607 } 1608 } else { 1609 if (tops->flags & ZERO_MORE_TTLV) 1610 return 0; 1611 if (tops->flags & ONE_MORE_TTLV) { 1612 ND_PRINT((ndo, "\tTop level TLV Data missing!\n")); 1613 return -1; 1614 } 1615 } 1616 1617 if (tops->flags & ZERO_TTLV) { 1618 return 0; 1619 } 1620 1621 ttlv = tops->flags >> 4; 1622 tltlv = GET_TOP_TLV(pptr); 1623 1624 /*XXX: 15 top level tlvs will probably be fine 1625 You are nuts if you send more ;-> */ 1626 while (rlen != 0) { 1627 ND_TCHECK(*tltlv); 1628 invtlv = tlv_valid(tltlv, rlen); 1629 if (invtlv) 1630 break; 1631 1632 /* 1633 * At this point, tlv_valid() has ensured that the TLV 1634 * length is large enough but not too large (it doesn't 1635 * go past the end of the packet). 1636 */ 1637 if (!ttlv_valid(EXTRACT_16BITS(&tltlv->type))) { 1638 ND_PRINT((ndo, "\n\tInvalid ForCES Top TLV type=0x%x", 1639 EXTRACT_16BITS(&tltlv->type))); 1640 return -1; 1641 } 1642 1643 if (ndo->ndo_vflag >= 3) 1644 ND_PRINT((ndo, "\t%s, length %d (data length %d Bytes)", 1645 tok2str(ForCES_TLV, NULL, EXTRACT_16BITS(&tltlv->type)), 1646 EXTRACT_16BITS(&tltlv->length), 1647 EXTRACT_16BITS(&tltlv->length) - TLV_HDRL)); 1648 1649 rc = tops->print(ndo, (u_char *) TLV_DATA(tltlv), 1650 EXTRACT_16BITS(&tltlv->length), tops->op_msk, 9); 1651 if (rc < 0) { 1652 return -1; 1653 } 1654 tltlv = GO_NXT_TLV(tltlv, rlen); 1655 ttlv--; 1656 if (ttlv <= 0) 1657 break; 1658 } 1659 /* 1660 * XXX - if ttlv != 0, does that mean that the packet was too 1661 * short, and didn't have *enough* TLVs in it? 1662 */ 1663 if (rlen) { 1664 ND_PRINT((ndo, "\tMess TopTLV header: min %u, total %d advertised %d ", 1665 TLV_HDRL, rlen, EXTRACT_16BITS(&tltlv->length))); 1666 return -1; 1667 } 1668 1669 return 0; 1670 1671 trunc: 1672 ND_PRINT((ndo, "%s", tstr)); 1673 return -1; 1674 } 1675 1676 void 1677 forces_print(netdissect_options *ndo, 1678 register const u_char * pptr, register u_int len) 1679 { 1680 const struct forcesh *fhdr; 1681 u_int mlen; 1682 uint32_t flg_raw; 1683 const struct tom_h *tops; 1684 int rc = 0; 1685 1686 fhdr = (const struct forcesh *)pptr; 1687 ND_TCHECK(*fhdr); 1688 if (!tom_valid(fhdr->fm_tom)) { 1689 ND_PRINT((ndo, "Invalid ForCES message type %d\n", fhdr->fm_tom)); 1690 goto error; 1691 } 1692 1693 mlen = ForCES_BLN(fhdr); 1694 1695 tops = get_forces_tom(fhdr->fm_tom); 1696 if (tops->v == TOM_RSVD) { 1697 ND_PRINT((ndo, "\n\tUnknown ForCES message type=0x%x", fhdr->fm_tom)); 1698 goto error; 1699 } 1700 1701 ND_PRINT((ndo, "\n\tForCES %s ", tops->s)); 1702 if (!ForCES_HLN_VALID(mlen, len)) { 1703 ND_PRINT((ndo, 1704 "Illegal ForCES pkt len - min %u, total recvd %d, advertised %d ", 1705 ForCES_HDRL, len, ForCES_BLN(fhdr))); 1706 goto error; 1707 } 1708 1709 ND_TCHECK2(*(pptr + 20), 4); 1710 flg_raw = EXTRACT_32BITS(pptr + 20); 1711 if (ndo->ndo_vflag >= 1) { 1712 ND_PRINT((ndo, "\n\tForCES Version %d len %uB flags 0x%08x ", 1713 ForCES_V(fhdr), mlen, flg_raw)); 1714 ND_PRINT((ndo, 1715 "\n\tSrcID 0x%x(%s) DstID 0x%x(%s) Correlator 0x%" PRIx64, 1716 ForCES_SID(fhdr), ForCES_node(ForCES_SID(fhdr)), 1717 ForCES_DID(fhdr), ForCES_node(ForCES_DID(fhdr)), 1718 EXTRACT_64BITS(fhdr->fm_cor))); 1719 1720 } 1721 if (ndo->ndo_vflag >= 2) { 1722 ND_PRINT((ndo, 1723 "\n\tForCES flags:\n\t %s(0x%x), prio=%d, %s(0x%x),\n\t %s(0x%x), %s(0x%x)\n", 1724 tok2str(ForCES_ACKs, "ACKUnknown", ForCES_ACK(fhdr)), 1725 ForCES_ACK(fhdr), 1726 ForCES_PRI(fhdr), 1727 tok2str(ForCES_EMs, "EMUnknown", ForCES_EM(fhdr)), 1728 ForCES_EM(fhdr), 1729 tok2str(ForCES_ATs, "ATUnknown", ForCES_AT(fhdr)), 1730 ForCES_AT(fhdr), 1731 tok2str(ForCES_TPs, "TPUnknown", ForCES_TP(fhdr)), 1732 ForCES_TP(fhdr))); 1733 ND_PRINT((ndo, 1734 "\t Extra flags: rsv(b5-7) 0x%x rsv(b13-31) 0x%x\n", 1735 ForCES_RS1(fhdr), ForCES_RS2(fhdr))); 1736 } 1737 rc = forces_type_print(ndo, pptr, fhdr, mlen, tops); 1738 if (rc < 0) { 1739 error: 1740 hex_print_with_offset(ndo, "\n\t[", pptr, len, 0); 1741 ND_PRINT((ndo, "\n\t]")); 1742 return; 1743 } 1744 1745 if (ndo->ndo_vflag >= 4) { 1746 ND_PRINT((ndo, "\n\t Raw ForCES message\n\t [")); 1747 hex_print_with_offset(ndo, "\n\t ", pptr, len, 0); 1748 ND_PRINT((ndo, "\n\t ]")); 1749 } 1750 ND_PRINT((ndo, "\n")); 1751 return; 1752 1753 trunc: 1754 ND_PRINT((ndo, "%s", tstr)); 1755 } 1756 /* 1757 * Local Variables: 1758 * c-style: whitesmith 1759 * c-basic-offset: 8 1760 * End: 1761 */ 1762