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 */ 1761
