1 /* 2 * Copyright (c) 1988-1997 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Copyright (c) 1998-2012 Michael Richardson <mcr (at) tcpdump.org> 6 * The TCPDUMP project 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that: (1) source code distributions 10 * retain the above copyright notice and this paragraph in its entirety, (2) 11 * distributions including binary code include the above copyright notice and 12 * this paragraph in its entirety in the documentation or other materials 13 * provided with the distribution, and (3) all advertising materials mentioning 14 * features or use of this software display the following acknowledgement: 15 * ``This product includes software developed by the University of California, 16 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of 17 * the University nor the names of its contributors may be used to endorse 18 * or promote products derived from this software without specific prior 19 * written permission. 20 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED 21 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF 22 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 23 */ 24 25 #ifndef netdissect_h 26 #define netdissect_h 27 28 #ifdef HAVE_OS_PROTO_H 29 #include "os-proto.h" 30 #endif 31 #include <sys/types.h> 32 #include <setjmp.h> 33 #include <time.h> 34 #include "status-exit-codes.h" 35 #include "funcattrs.h" /* for PRINTFLIKE_FUNCPTR() */ 36 #include "diag-control.h" /* for ND_UNREACHABLE */ 37 38 /* 39 * Data types corresponding to multi-byte integral values within data 40 * structures. These are defined as arrays of octets, so that they're 41 * not aligned on their "natural" boundaries, and so that you *must* 42 * use the EXTRACT_ macros to extract them (which you should be doing 43 * *anyway*, so as not to assume a particular byte order or alignment 44 * in your code). 45 * 46 * We even want EXTRACT_U_1 used for 8-bit integral values, so we 47 * define nd_uint8_t and nd_int8_t as arrays as well. 48 */ 49 typedef unsigned char nd_uint8_t[1]; 50 typedef unsigned char nd_uint16_t[2]; 51 typedef unsigned char nd_uint24_t[3]; 52 typedef unsigned char nd_uint32_t[4]; 53 typedef unsigned char nd_uint40_t[5]; 54 typedef unsigned char nd_uint48_t[6]; 55 typedef unsigned char nd_uint56_t[7]; 56 typedef unsigned char nd_uint64_t[8]; 57 58 typedef signed char nd_int8_t[1]; 59 60 /* 61 * "unsigned char" so that sign extension isn't done on the 62 * individual bytes while they're being assembled. Use 63 * GET_S_BE_n() and GET_S_LE_n() macros to extract the value 64 * as a signed integer. 65 */ 66 typedef unsigned char nd_int16_t[2]; 67 typedef unsigned char nd_int24_t[3]; 68 typedef unsigned char nd_int32_t[4]; 69 typedef unsigned char nd_int40_t[5]; 70 typedef unsigned char nd_int48_t[6]; 71 typedef unsigned char nd_int56_t[7]; 72 typedef unsigned char nd_int64_t[8]; 73 74 #define FMAXINT (4294967296.0) /* floating point rep. of MAXINT */ 75 76 /* 77 * Use this for IPv4 addresses and netmasks. 78 * 79 * It's defined as an array of octets, so that it's not guaranteed to 80 * be aligned on its "natural" boundary (in some packet formats, it 81 * *isn't* so aligned). We have separate EXTRACT_ calls for them; 82 * sometimes you want the host-byte-order value, other times you want 83 * the network-byte-order value. 84 * 85 * Don't use EXTRACT_BE_U_4() on them, use EXTRACT_IPV4_TO_HOST_ORDER() 86 * if you want them in host byte order and EXTRACT_IPV4_TO_NETWORK_ORDER() 87 * if you want them in network byte order (which you want with system APIs 88 * that expect network-order IPv4 addresses, such as inet_ntop()). 89 * 90 * If, on your little-endian machine (e.g., an "IBM-compatible PC", no matter 91 * what the OS, or an Intel Mac, no matter what the OS), you get the wrong 92 * answer, and you've used EXTRACT_BE_U_4(), do *N*O*T* "fix" this by using 93 * EXTRACT_LE_U_4(), fix it by using EXTRACT_IPV4_TO_NETWORK_ORDER(), 94 * otherwise you're breaking the result on big-endian machines (e.g., 95 * most PowerPC/Power ISA machines, System/390 and z/Architecture, SPARC, 96 * etc.). 97 * 98 * Yes, people do this; that's why Wireshark has tvb_get_ipv4(), to extract 99 * an IPv4 address from a packet data buffer; it was introduced in reaction 100 * to somebody who *had* done that. 101 */ 102 typedef unsigned char nd_ipv4[4]; 103 104 /* 105 * Use this for IPv6 addresses and netmasks. 106 */ 107 typedef unsigned char nd_ipv6[16]; 108 109 /* 110 * Use this for MAC addresses. 111 */ 112 #define MAC_ADDR_LEN 6U /* length of MAC addresses */ 113 typedef unsigned char nd_mac_addr[MAC_ADDR_LEN]; 114 115 /* 116 * Use this for blobs of bytes; make them arrays of nd_byte. 117 */ 118 typedef unsigned char nd_byte; 119 120 /* 121 * Round up x to a multiple of y; y must be a power of 2. 122 */ 123 #ifndef roundup2 124 #define roundup2(x, y) (((x)+((u_int)((y)-1)))&(~((u_int)((y)-1)))) 125 #endif 126 127 #include <stdarg.h> 128 #include <pcap.h> 129 130 #include "ip.h" /* struct ip for nextproto4_cksum() */ 131 #include "ip6.h" /* struct ip6 for nextproto6_cksum() */ 132 133 #ifndef HAVE_STRLCAT 134 extern size_t strlcat (char *, const char *, size_t); 135 #endif 136 #ifndef HAVE_STRLCPY 137 extern size_t strlcpy (char *, const char *, size_t); 138 #endif 139 140 #ifndef HAVE_STRDUP 141 extern char *strdup (const char *str); 142 #endif 143 144 #ifndef HAVE_STRSEP 145 extern char *strsep(char **, const char *); 146 #endif 147 148 struct tok { 149 u_int v; /* value */ 150 const char *s; /* string */ 151 }; 152 153 /* tok2str is deprecated */ 154 extern const char *tok2str(const struct tok *, const char *, u_int); 155 extern char *bittok2str(const struct tok *, const char *, u_int); 156 extern char *bittok2str_nosep(const struct tok *, const char *, u_int); 157 158 /* Initialize netdissect. */ 159 extern int nd_init(char *, size_t); 160 /* Clean up netdissect. */ 161 extern void nd_cleanup(void); 162 163 /* Do we have libsmi support? */ 164 extern int nd_have_smi_support(void); 165 /* Load an SMI module. */ 166 extern int nd_load_smi_module(const char *, char *, size_t); 167 /* Flag indicating whether an SMI module has been loaded. */ 168 extern int nd_smi_module_loaded; 169 /* Version number of the SMI library, or NULL if we don't have libsmi support. */ 170 extern const char *nd_smi_version_string(void); 171 172 typedef struct netdissect_options netdissect_options; 173 174 #define IF_PRINTER_ARGS (netdissect_options *, const struct pcap_pkthdr *, const u_char *) 175 176 typedef void (*if_printer) IF_PRINTER_ARGS; 177 178 /* 179 * In case the data in a buffer needs to be processed by being decrypted, 180 * decompressed, etc. before it's dissected, we can't process it in place, 181 * we have to allocate a new buffer for the processed data. 182 * 183 * We keep a stack of those buffers; when we allocate a new buffer, we 184 * push the current one onto a stack, and when we're done with the new 185 * buffer, we free the current buffer and pop the previous one off the 186 * stack. 187 * 188 * A buffer has a beginning and end pointer, and a link to the previous 189 * buffer on the stack. 190 * 191 * In other cases, we temporarily adjust the snapshot end to reflect a 192 * packet-length field in the packet data and, when finished dissecting 193 * that part of the packet, restore the old snapshot end. We keep that 194 * on the stack with null buffer pointer, meaning there's nothing to 195 * free. 196 */ 197 struct netdissect_saved_packet_info { 198 u_char *ndspi_buffer; /* pointer to allocated buffer data */ 199 const u_char *ndspi_packetp; /* saved beginning of data */ 200 const u_char *ndspi_snapend; /* saved end of data */ 201 struct netdissect_saved_packet_info *ndspi_prev; /* previous buffer on the stack */ 202 }; 203 204 /* 'val' value(s) for longjmp */ 205 #define ND_TRUNCATED 1 206 207 struct netdissect_options { 208 int ndo_bflag; /* print 4 byte ASes in ASDOT notation */ 209 int ndo_eflag; /* print ethernet header */ 210 int ndo_fflag; /* don't translate "foreign" IP address */ 211 int ndo_gflag; /* don't split IP output into two lines in verbose mode */ 212 int ndo_Kflag; /* don't check IP, TCP or UDP checksums */ 213 int ndo_nflag; /* leave addresses as numbers */ 214 int ndo_Nflag; /* remove domains from printed host names */ 215 int ndo_qflag; /* quick (shorter) output */ 216 int ndo_Sflag; /* print raw TCP sequence numbers */ 217 int ndo_tflag; /* print packet arrival time */ 218 int ndo_uflag; /* Print undecoded NFS handles */ 219 int ndo_vflag; /* verbosity level */ 220 int ndo_xflag; /* print packet in hex */ 221 int ndo_Xflag; /* print packet in hex/ASCII */ 222 int ndo_Aflag; /* print packet only in ASCII observing TAB, 223 * LF, CR and SPACE as graphical chars 224 */ 225 int ndo_Hflag; /* dissect 802.11s draft mesh standard */ 226 const char *ndo_protocol; /* protocol */ 227 jmp_buf ndo_early_end; /* jmp_buf for setjmp()/longjmp() */ 228 void *ndo_last_mem_p; /* pointer to the last allocated memory chunk */ 229 int ndo_packet_number; /* print a packet number in the beginning of line */ 230 int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */ 231 int ndo_tstamp_precision; /* requested time stamp precision */ 232 const char *program_name; /* Name of the program using the library */ 233 234 char *ndo_espsecret; 235 struct sa_list *ndo_sa_list_head; /* used by print-esp.c */ 236 struct sa_list *ndo_sa_default; 237 238 char *ndo_sigsecret; /* Signature verification secret key */ 239 240 int ndo_packettype; /* as specified by -T */ 241 242 int ndo_snaplen; 243 int ndo_ll_hdr_len; /* link-layer header length */ 244 245 /*global pointers to beginning and end of current packet (during printing) */ 246 const u_char *ndo_packetp; 247 const u_char *ndo_snapend; 248 249 /* stack of saved packet boundary and buffer information */ 250 struct netdissect_saved_packet_info *ndo_packet_info_stack; 251 252 /* pointer to the if_printer function */ 253 if_printer ndo_if_printer; 254 255 /* pointer to void function to output stuff */ 256 void (*ndo_default_print)(netdissect_options *, 257 const u_char *bp, u_int length); 258 259 /* pointer to function to do regular output */ 260 int (*ndo_printf)(netdissect_options *, 261 const char *fmt, ...) 262 PRINTFLIKE_FUNCPTR(2, 3); 263 /* pointer to function to output errors */ 264 void NORETURN_FUNCPTR (*ndo_error)(netdissect_options *, 265 status_exit_codes_t status, 266 const char *fmt, ...) 267 PRINTFLIKE_FUNCPTR(3, 4); 268 /* pointer to function to output warnings */ 269 void (*ndo_warning)(netdissect_options *, 270 const char *fmt, ...) 271 PRINTFLIKE_FUNCPTR(2, 3); 272 }; 273 274 extern WARN_UNUSED_RESULT int nd_push_buffer(netdissect_options *, u_char *, const u_char *, const u_int); 275 extern WARN_UNUSED_RESULT int nd_push_snaplen(netdissect_options *, const u_char *, const u_int); 276 extern void nd_change_snaplen(netdissect_options *, const u_char *, const u_int); 277 extern void nd_pop_packet_info(netdissect_options *); 278 extern void nd_pop_all_packet_info(netdissect_options *); 279 280 /* 281 * Report a packet truncation with a longjmp(). 282 */ 283 NORETURN void nd_trunc_longjmp(netdissect_options *ndo); 284 285 #define PT_VAT 1 /* Visual Audio Tool */ 286 #define PT_WB 2 /* distributed White Board */ 287 #define PT_RPC 3 /* Remote Procedure Call */ 288 #define PT_RTP 4 /* Real-Time Applications protocol */ 289 #define PT_RTCP 5 /* Real-Time Applications control protocol */ 290 #define PT_SNMP 6 /* Simple Network Management Protocol */ 291 #define PT_CNFP 7 /* Cisco NetFlow protocol */ 292 #define PT_TFTP 8 /* trivial file transfer protocol */ 293 #define PT_AODV 9 /* Ad-hoc On-demand Distance Vector Protocol */ 294 #define PT_CARP 10 /* Common Address Redundancy Protocol */ 295 #define PT_RADIUS 11 /* RADIUS authentication Protocol */ 296 #define PT_ZMTP1 12 /* ZeroMQ Message Transport Protocol 1.0 */ 297 #define PT_VXLAN 13 /* Virtual eXtensible Local Area Network */ 298 #define PT_PGM 14 /* [UDP-encapsulated] Pragmatic General Multicast */ 299 #define PT_PGM_ZMTP1 15 /* ZMTP/1.0 inside PGM (native or UDP-encapsulated) */ 300 #define PT_LMP 16 /* Link Management Protocol */ 301 #define PT_RESP 17 /* RESP */ 302 #define PT_PTP 18 /* PTP */ 303 #define PT_SOMEIP 19 /* Autosar SOME/IP Protocol */ 304 #define PT_DOMAIN 20 /* Domain Name System (DNS) */ 305 306 #define ND_MIN(a,b) ((a)>(b)?(b):(a)) 307 #define ND_MAX(a,b) ((b)>(a)?(b):(a)) 308 309 /* For source or destination ports tests (UDP, TCP, ...) */ 310 #define IS_SRC_OR_DST_PORT(p) (sport == (p) || dport == (p)) 311 312 /* 313 * Maximum snapshot length. This should be enough to capture the full 314 * packet on most network interfaces. 315 * 316 * 317 * Somewhat arbitrary, but chosen to be: 318 * 319 * 1) big enough for maximum-size Linux loopback packets (65549) 320 * and some USB packets captured with USBPcap: 321 * 322 * https://desowin.org/usbpcap/ 323 * 324 * (> 131072, < 262144) 325 * 326 * and 327 * 328 * 2) small enough not to cause attempts to allocate huge amounts of 329 * memory; some applications might use the snapshot length in a 330 * savefile header to control the size of the buffer they allocate, 331 * so a size of, say, 2^31-1 might not work well. 332 * 333 * XXX - does it need to be bigger still? Note that, for versions of 334 * libpcap with pcap_create()/pcap_activate(), if no -s flag is specified 335 * or -s 0 is specified, we won't set the snapshot length at all, and will 336 * let libpcap choose a snapshot length; newer versions may choose a bigger 337 * value than 262144 for D-Bus, for example. 338 */ 339 #define MAXIMUM_SNAPLEN 262144 340 341 /* 342 * True if "l" bytes from "p" were captured. 343 * 344 * The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure 345 * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows. 346 * 347 * The check is for <= rather than < because "l" might be 0. 348 * 349 * We cast the pointers to uintptr_t to make sure that the compiler 350 * doesn't optimize away any of these tests (which it is allowed to 351 * do, as adding an integer to, or subtracting an integer from, a 352 * pointer assumes that the pointer is a pointer to an element of an 353 * array and that the result of the addition or subtraction yields a 354 * pointer to another member of the array, so that, for example, if 355 * you subtract a positive integer from a pointer, the result is 356 * guaranteed to be less than the original pointer value). See 357 * 358 * https://www.kb.cert.org/vuls/id/162289 359 */ 360 361 /* 362 * Test in two parts to avoid these warnings: 363 * comparison of unsigned expression >= 0 is always true [-Wtype-limits], 364 * comparison is always true due to limited range of data type [-Wtype-limits]. 365 */ 366 #define IS_NOT_NEGATIVE(x) (((x) > 0) || ((x) == 0)) 367 368 #define ND_TTEST_LEN(p, l) \ 369 (IS_NOT_NEGATIVE(l) && \ 370 ((uintptr_t)ndo->ndo_snapend - (l) <= (uintptr_t)ndo->ndo_snapend && \ 371 (uintptr_t)(p) <= (uintptr_t)ndo->ndo_snapend - (l))) 372 373 /* True if "*(p)" was captured */ 374 #define ND_TTEST_SIZE(p) ND_TTEST_LEN(p, sizeof(*(p))) 375 376 /* Bail out if "l" bytes from "p" were not captured */ 377 #ifdef ND_LONGJMP_FROM_TCHECK 378 #define ND_TCHECK_LEN(p, l) \ 379 do { \ 380 if (!ND_TTEST_LEN(p, l)) nd_trunc_longjmp(ndo); \ 381 } while (0) 382 #else 383 #define ND_TCHECK_LEN(p, l) \ 384 do { \ 385 if (!ND_TTEST_LEN(p, l)) goto trunc; \ 386 } while (0) 387 #endif 388 389 /* Bail out if "*(p)" was not captured */ 390 #define ND_TCHECK_SIZE(p) ND_TCHECK_LEN(p, sizeof(*(p))) 391 392 /* 393 * Number of bytes between two pointers. 394 */ 395 #define ND_BYTES_BETWEEN(p1, p2) ((const u_char *)(p1) >= (const u_char *)(p2) ? 0 : ((u_int)(((const u_char *)(p2)) - (const u_char *)(p1)))) 396 397 /* 398 * Number of bytes remaining in the captured data, starting at the 399 * byte pointed to by the argument. 400 */ 401 #define ND_BYTES_AVAILABLE_AFTER(p) ((const u_char *)(p) < ndo->ndo_packetp ? 0 : ND_BYTES_BETWEEN((p), ndo->ndo_snapend)) 402 403 /* 404 * Check (expression_1 operator expression_2) for invalid packet with 405 * a custom message, format %u 406 */ 407 #define ND_ICHECKMSG_U(message, expression_1, operator, expression_2) \ 408 do { \ 409 if ((expression_1) operator (expression_2)) { \ 410 ND_PRINT(" [%s %u %s %u]", (message), (expression_1), (#operator), (expression_2)); \ 411 goto invalid; \ 412 } \ 413 } while (0) 414 415 /* 416 * Check (expression_1 operator expression_2) for invalid packet with 417 * "expression_1" message, format %u 418 */ 419 #define ND_ICHECK_U(expression_1, operator, expression_2) \ 420 ND_ICHECKMSG_U((#expression_1), (expression_1), operator, (expression_2)) 421 422 /* 423 * Check (expression_1 operator expression_2) for invalid packet with 424 * a custom message, format %zu 425 */ 426 #define ND_ICHECKMSG_ZU(message, expression_1, operator, expression_2) \ 427 do { \ 428 if ((expression_1) operator (expression_2)) { \ 429 ND_PRINT(" [%s %u %s %zu]", (message), (expression_1), (#operator), (expression_2)); \ 430 goto invalid; \ 431 } \ 432 } while (0) 433 434 /* 435 * Check (expression_1 operator expression_2) for invalid packet with 436 * "expression_1" message, format %zu 437 */ 438 #define ND_ICHECK_ZU(expression_1, operator, expression_2) \ 439 ND_ICHECKMSG_ZU((#expression_1), (expression_1), operator, (expression_2)) 440 441 #define ND_PRINT(...) (ndo->ndo_printf)(ndo, __VA_ARGS__) 442 #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length) 443 444 extern void ts_print(netdissect_options *, const struct timeval *); 445 extern void signed_relts_print(netdissect_options *, int32_t); 446 extern void unsigned_relts_print(netdissect_options *, uint32_t); 447 448 extern const char *nd_format_time(char *buf, size_t bufsize, 449 const char *format, const struct tm *timeptr); 450 451 extern void fn_print_char(netdissect_options *, u_char); 452 extern void fn_print_str(netdissect_options *, const u_char *); 453 extern u_int nd_printztn(netdissect_options *, const u_char *, u_int, const u_char *); 454 extern int nd_printn(netdissect_options *, const u_char *, u_int, const u_char *); 455 extern void nd_printjn(netdissect_options *, const u_char *, u_int); 456 extern void nd_printjnp(netdissect_options *, const u_char *, u_int); 457 458 /* 459 * Flags for txtproto_print(). 460 */ 461 #define RESP_CODE_SECOND_TOKEN 0x00000001 /* response code is second token in response line */ 462 463 extern void txtproto_print(netdissect_options *, const u_char *, u_int, 464 const char **, u_int); 465 466 #if (defined(__i386__) || defined(_M_IX86) || defined(__X86__) || defined(__x86_64__) || defined(_M_X64)) || \ 467 (defined(__arm__) || defined(_M_ARM) || defined(__aarch64__)) || \ 468 (defined(__m68k__) && (!defined(__mc68000__) && !defined(__mc68010__))) || \ 469 (defined(__ppc__) || defined(__ppc64__) || defined(_M_PPC) || defined(_ARCH_PPC) || defined(_ARCH_PPC64)) || \ 470 (defined(__s390__) || defined(__s390x__) || defined(__zarch__)) || \ 471 defined(__vax__) 472 /* 473 * The processor natively handles unaligned loads, so just use memcpy() 474 * and memcmp(), to enable those optimizations. 475 * 476 * XXX - are those all the x86 tests we need? 477 * XXX - do we need to worry about ARMv1 through ARMv5, which didn't 478 * support unaligned loads, and, if so, do we need to worry about all 479 * of them, or just some of them, e.g. ARMv5? 480 * XXX - are those the only 68k tests we need not to generated 481 * unaligned accesses if the target is the 68000 or 68010? 482 * XXX - are there any tests we don't need, because some definitions are for 483 * compilers that also predefine the GCC symbols? 484 * XXX - do we need to test for both 32-bit and 64-bit versions of those 485 * architectures in all cases? 486 */ 487 #define UNALIGNED_MEMCPY(p, q, l) memcpy((p), (q), (l)) 488 #define UNALIGNED_MEMCMP(p, q, l) memcmp((p), (q), (l)) 489 #else 490 /* 491 * The processor doesn't natively handle unaligned loads, 492 * and the compiler might "helpfully" optimize memcpy() 493 * and memcmp(), when handed pointers that would normally 494 * be properly aligned, into sequences that assume proper 495 * alignment. 496 * 497 * Do copies and compares of possibly-unaligned data by 498 * calling routines that wrap memcpy() and memcmp(), to 499 * prevent that optimization. 500 */ 501 extern void unaligned_memcpy(void *, const void *, size_t); 502 extern int unaligned_memcmp(const void *, const void *, size_t); 503 #define UNALIGNED_MEMCPY(p, q, l) unaligned_memcpy((p), (q), (l)) 504 #define UNALIGNED_MEMCMP(p, q, l) unaligned_memcmp((p), (q), (l)) 505 #endif 506 507 #define PLURAL_SUFFIX(n) \ 508 (((n) != 1) ? "s" : "") 509 510 extern const char *tok2strary_internal(const char **, int, const char *, int); 511 #define tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i) 512 513 struct uint_tokary 514 { 515 u_int uintval; 516 const struct tok *tokary; 517 }; 518 519 extern const struct tok *uint2tokary_internal(const struct uint_tokary[], const size_t, const u_int); 520 #define uint2tokary(a, i) uint2tokary_internal(a, sizeof(a)/sizeof(a[0]), i) 521 522 extern if_printer lookup_printer(int); 523 524 #define ND_DEBUG {printf(" [%s:%d %s] ", __FILE__, __LINE__, __func__); fflush(stdout);} 525 526 /* The DLT printer routines */ 527 528 extern void ap1394_if_print IF_PRINTER_ARGS; 529 extern void arcnet_if_print IF_PRINTER_ARGS; 530 extern void arcnet_linux_if_print IF_PRINTER_ARGS; 531 extern void atm_if_print IF_PRINTER_ARGS; 532 extern void brcm_tag_if_print IF_PRINTER_ARGS; 533 extern void brcm_tag_prepend_if_print IF_PRINTER_ARGS; 534 extern void bt_if_print IF_PRINTER_ARGS; 535 extern void chdlc_if_print IF_PRINTER_ARGS; 536 extern void cip_if_print IF_PRINTER_ARGS; 537 extern void dsa_if_print IF_PRINTER_ARGS; 538 extern void edsa_if_print IF_PRINTER_ARGS; 539 extern void enc_if_print IF_PRINTER_ARGS; 540 extern void ether_if_print IF_PRINTER_ARGS; 541 extern void fddi_if_print IF_PRINTER_ARGS; 542 extern void fr_if_print IF_PRINTER_ARGS; 543 extern void ieee802_11_if_print IF_PRINTER_ARGS; 544 extern void ieee802_11_radio_avs_if_print IF_PRINTER_ARGS; 545 extern void ieee802_11_radio_if_print IF_PRINTER_ARGS; 546 extern void ieee802_15_4_if_print IF_PRINTER_ARGS; 547 extern void ieee802_15_4_tap_if_print IF_PRINTER_ARGS; 548 extern void ipfc_if_print IF_PRINTER_ARGS; 549 extern void ipnet_if_print IF_PRINTER_ARGS; 550 extern void ipoib_if_print IF_PRINTER_ARGS; 551 extern void juniper_atm1_if_print IF_PRINTER_ARGS; 552 extern void juniper_atm2_if_print IF_PRINTER_ARGS; 553 extern void juniper_chdlc_if_print IF_PRINTER_ARGS; 554 extern void juniper_es_if_print IF_PRINTER_ARGS; 555 extern void juniper_ether_if_print IF_PRINTER_ARGS; 556 extern void juniper_frelay_if_print IF_PRINTER_ARGS; 557 extern void juniper_ggsn_if_print IF_PRINTER_ARGS; 558 extern void juniper_mfr_if_print IF_PRINTER_ARGS; 559 extern void juniper_mlfr_if_print IF_PRINTER_ARGS; 560 extern void juniper_mlppp_if_print IF_PRINTER_ARGS; 561 extern void juniper_monitor_if_print IF_PRINTER_ARGS; 562 extern void juniper_ppp_if_print IF_PRINTER_ARGS; 563 extern void juniper_pppoe_atm_if_print IF_PRINTER_ARGS; 564 extern void juniper_pppoe_if_print IF_PRINTER_ARGS; 565 extern void juniper_services_if_print IF_PRINTER_ARGS; 566 extern void ltalk_if_print IF_PRINTER_ARGS; 567 extern void mfr_if_print IF_PRINTER_ARGS; 568 extern void netanalyzer_if_print IF_PRINTER_ARGS; 569 extern void netanalyzer_transparent_if_print IF_PRINTER_ARGS; 570 extern void nflog_if_print IF_PRINTER_ARGS; 571 extern void null_if_print IF_PRINTER_ARGS; 572 extern void pflog_if_print IF_PRINTER_ARGS; 573 extern void pktap_if_print IF_PRINTER_ARGS; 574 extern void ppi_if_print IF_PRINTER_ARGS; 575 extern void ppp_bsdos_if_print IF_PRINTER_ARGS; 576 extern void ppp_hdlc_if_print IF_PRINTER_ARGS; 577 extern void ppp_if_print IF_PRINTER_ARGS; 578 extern void pppoe_if_print IF_PRINTER_ARGS; 579 extern void prism_if_print IF_PRINTER_ARGS; 580 extern void raw_if_print IF_PRINTER_ARGS; 581 extern void sl_bsdos_if_print IF_PRINTER_ARGS; 582 extern void sl_if_print IF_PRINTER_ARGS; 583 extern void sll2_if_print IF_PRINTER_ARGS; 584 extern void sll_if_print IF_PRINTER_ARGS; 585 extern void sunatm_if_print IF_PRINTER_ARGS; 586 extern void symantec_if_print IF_PRINTER_ARGS; 587 extern void token_if_print IF_PRINTER_ARGS; 588 extern void unsupported_if_print IF_PRINTER_ARGS; 589 extern void usb_linux_48_byte_if_print IF_PRINTER_ARGS; 590 extern void usb_linux_64_byte_if_print IF_PRINTER_ARGS; 591 extern void vsock_if_print IF_PRINTER_ARGS; 592 593 /* 594 * Structure passed to some printers to allow them to print 595 * link-layer address information if ndo_eflag isn't set 596 * (because they are for protocols that don't have their 597 * own addresses, so that we'd want to report link-layer 598 * address information). 599 * 600 * This contains a pointer to an address and a pointer to a routine 601 * to which we pass that pointer in order to get a string. 602 */ 603 struct lladdr_info { 604 const char *(*addr_string)(netdissect_options *, const u_char *); 605 const u_char *addr; 606 }; 607 608 /* The printer routines. */ 609 610 extern void aarp_print(netdissect_options *, const u_char *, u_int); 611 extern int ah_print(netdissect_options *, const u_char *); 612 extern void ahcp_print(netdissect_options *, const u_char *, u_int); 613 extern void aodv_print(netdissect_options *, const u_char *, u_int, int); 614 extern void aoe_print(netdissect_options *, const u_char *, const u_int); 615 extern int arista_ethertype_print(netdissect_options *,const u_char *, u_int); 616 extern void arp_print(netdissect_options *, const u_char *, u_int, u_int); 617 extern void ascii_print(netdissect_options *, const u_char *, u_int); 618 extern void atalk_print(netdissect_options *, const u_char *, u_int); 619 extern void atm_print(netdissect_options *, u_int, u_int, u_int, const u_char *, u_int, u_int); 620 extern void babel_print(netdissect_options *, const u_char *, u_int); 621 extern void bcm_li_print(netdissect_options *, const u_char *, u_int); 622 extern void beep_print(netdissect_options *, const u_char *, u_int); 623 extern void bfd_print(netdissect_options *, const u_char *, u_int, u_int); 624 extern void bgp_print(netdissect_options *, const u_char *, u_int); 625 extern const char *bgp_vpn_rd_print(netdissect_options *, const u_char *); 626 extern void bootp_print(netdissect_options *, const u_char *, u_int); 627 extern void calm_fast_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *); 628 extern void carp_print(netdissect_options *, const u_char *, u_int, u_int); 629 extern void cdp_print(netdissect_options *, const u_char *, u_int); 630 extern void cfm_print(netdissect_options *, const u_char *, u_int); 631 extern u_int chdlc_print(netdissect_options *, const u_char *, u_int); 632 extern void cisco_autorp_print(netdissect_options *, const u_char *, u_int); 633 extern void cnfp_print(netdissect_options *, const u_char *); 634 extern void dccp_print(netdissect_options *, const u_char *, const u_char *, u_int); 635 extern void decnet_print(netdissect_options *, const u_char *, u_int, u_int); 636 extern void dhcp6_print(netdissect_options *, const u_char *, u_int); 637 extern int dstopt_process(netdissect_options *, const u_char *); 638 extern void dtp_print(netdissect_options *, const u_char *, u_int); 639 extern void dvmrp_print(netdissect_options *, const u_char *, u_int); 640 extern void eap_print(netdissect_options *, const u_char *, u_int); 641 extern void eapol_print(netdissect_options *, const u_char *); 642 extern void egp_print(netdissect_options *, const u_char *, u_int); 643 extern void eigrp_print(netdissect_options *, const u_char *, u_int); 644 extern void esp_print(netdissect_options *, const u_char *, u_int, const u_char *, u_int, int, u_int); 645 extern u_int ether_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), const u_char *); 646 extern u_int ether_switch_tag_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), u_int); 647 extern int ethertype_print(netdissect_options *, u_short, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *); 648 extern u_int fddi_print(netdissect_options *, const u_char *, u_int, u_int); 649 extern void forces_print(netdissect_options *, const u_char *, u_int); 650 extern u_int fr_print(netdissect_options *, const u_char *, u_int); 651 extern int frag6_print(netdissect_options *, const u_char *, const u_char *); 652 extern void ftp_print(netdissect_options *, const u_char *, u_int); 653 extern void geneve_print(netdissect_options *, const u_char *, u_int); 654 extern void geonet_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *); 655 extern void gre_print(netdissect_options *, const u_char *, u_int); 656 extern int hbhopt_process(netdissect_options *, const u_char *, int *, uint32_t *); 657 extern void hex_and_ascii_print(netdissect_options *, const char *, const u_char *, u_int); 658 extern void hex_print(netdissect_options *, const char *indent, const u_char *cp, u_int); 659 extern void hex_print_with_offset(netdissect_options *, const char *indent, const u_char *cp, u_int, u_int); 660 extern void hncp_print(netdissect_options *, const u_char *, u_int); 661 extern void hsrp_print(netdissect_options *, const u_char *, u_int); 662 extern void http_print(netdissect_options *, const u_char *, u_int); 663 extern void icmp6_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 664 extern void icmp_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 665 extern u_int ieee802_15_4_print(netdissect_options *, const u_char *, u_int); 666 extern u_int ieee802_11_radio_print(netdissect_options *, const u_char *, u_int, u_int); 667 extern void igmp_print(netdissect_options *, const u_char *, u_int); 668 extern void igrp_print(netdissect_options *, const u_char *, u_int); 669 extern void ip6_print(netdissect_options *, const u_char *, u_int); 670 extern void ipN_print(netdissect_options *, const u_char *, u_int); 671 extern void ip_print(netdissect_options *, const u_char *, const u_int); 672 extern void ipcomp_print(netdissect_options *, const u_char *); 673 extern void ipx_netbios_print(netdissect_options *, const u_char *, u_int); 674 extern void ipx_print(netdissect_options *, const u_char *, u_int); 675 extern void isakmp_print(netdissect_options *, const u_char *, u_int, const u_char *); 676 extern void isakmp_rfc3948_print(netdissect_options *, const u_char *, u_int, const u_char *, int, int, u_int); 677 extern void isoclns_print(netdissect_options *, const u_char *, u_int); 678 extern void krb_print(netdissect_options *, const u_char *); 679 extern void l2tp_print(netdissect_options *, const u_char *, u_int); 680 extern void lane_print(netdissect_options *, const u_char *, u_int, u_int); 681 extern void ldp_print(netdissect_options *, const u_char *, u_int); 682 extern void lisp_print(netdissect_options *, const u_char *, u_int); 683 extern u_int llap_print(netdissect_options *, const u_char *, u_int); 684 extern int llc_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *); 685 extern void lldp_print(netdissect_options *, const u_char *, u_int); 686 extern void lmp_print(netdissect_options *, const u_char *, u_int); 687 extern void loopback_print(netdissect_options *, const u_char *, u_int); 688 extern void lspping_print(netdissect_options *, const u_char *, u_int); 689 extern void lwapp_control_print(netdissect_options *, const u_char *, u_int, int); 690 extern void lwapp_data_print(netdissect_options *, const u_char *, u_int); 691 extern void lwres_print(netdissect_options *, const u_char *, u_int); 692 extern void m3ua_print(netdissect_options *, const u_char *, const u_int); 693 extern int macsec_print(netdissect_options *, const u_char **, 694 u_int *, u_int *, u_int *, const struct lladdr_info *, 695 const struct lladdr_info *); 696 extern u_int mfr_print(netdissect_options *, const u_char *, u_int); 697 extern void mobile_print(netdissect_options *, const u_char *, u_int); 698 extern int mobility_print(netdissect_options *, const u_char *, const u_char *); 699 extern void mpcp_print(netdissect_options *, const u_char *, u_int); 700 extern void mpls_print(netdissect_options *, const u_char *, u_int); 701 extern int mptcp_print(netdissect_options *, const u_char *, u_int, u_char); 702 extern void msdp_print(netdissect_options *, const u_char *, u_int); 703 extern void msnlb_print(netdissect_options *, const u_char *); 704 extern void nbt_tcp_print(netdissect_options *, const u_char *, u_int); 705 extern void nbt_udp137_print(netdissect_options *, const u_char *, u_int); 706 extern void nbt_udp138_print(netdissect_options *, const u_char *, u_int); 707 extern void netbeui_print(netdissect_options *, u_short, const u_char *, u_int); 708 extern void nfsreply_print(netdissect_options *, const u_char *, u_int, const u_char *); 709 extern void nfsreply_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *); 710 extern void nfsreq_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *); 711 extern const u_char *fqdn_print(netdissect_options *, const u_char *, const u_char *); 712 extern void domain_print(netdissect_options *, const u_char *, u_int, int, int); 713 extern void nsh_print(netdissect_options *, const u_char *, u_int); 714 extern void ntp_print(netdissect_options *, const u_char *, u_int); 715 extern void oam_print(netdissect_options *, const u_char *, u_int, u_int); 716 extern void olsr_print(netdissect_options *, const u_char *, u_int, int); 717 extern void openflow_print(netdissect_options *, const u_char *, u_int); 718 extern void ospf6_print(netdissect_options *, const u_char *, u_int); 719 extern void ospf_print(netdissect_options *, const u_char *, u_int, const u_char *); 720 extern int ospf_grace_lsa_print(netdissect_options *, const u_char *, u_int); 721 extern int ospf_te_lsa_print(netdissect_options *, const u_char *, u_int); 722 extern void pgm_print(netdissect_options *, const u_char *, u_int, const u_char *); 723 extern void pim_print(netdissect_options *, const u_char *, u_int, const u_char *); 724 extern void pimv1_print(netdissect_options *, const u_char *, u_int); 725 extern u_int ppp_print(netdissect_options *, const u_char *, u_int); 726 extern u_int pppoe_print(netdissect_options *, const u_char *, u_int); 727 extern void pptp_print(netdissect_options *, const u_char *); 728 extern void ptp_print(netdissect_options *, const u_char *, u_int); 729 extern int print_unknown_data(netdissect_options *, const u_char *, const char *, u_int); 730 extern const char *q922_string(netdissect_options *, const u_char *, u_int); 731 extern void q933_print(netdissect_options *, const u_char *, u_int); 732 extern void radius_print(netdissect_options *, const u_char *, u_int); 733 extern void resp_print(netdissect_options *, const u_char *, u_int); 734 extern void rip_print(netdissect_options *, const u_char *, u_int); 735 extern void ripng_print(netdissect_options *, const u_char *, unsigned int); 736 extern void rpki_rtr_print(netdissect_options *, const u_char *, u_int); 737 extern void rsvp_print(netdissect_options *, const u_char *, u_int); 738 extern int rt6_print(netdissect_options *, const u_char *, const u_char *); 739 extern void rtl_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *, const struct lladdr_info *); 740 extern void rtsp_print(netdissect_options *, const u_char *, u_int); 741 extern void rx_print(netdissect_options *, const u_char *, u_int, uint16_t, uint16_t, const u_char *); 742 extern void sctp_print(netdissect_options *, const u_char *, const u_char *, u_int); 743 extern void sflow_print(netdissect_options *, const u_char *, u_int); 744 extern void ssh_print(netdissect_options *, const u_char *, u_int); 745 extern void sip_print(netdissect_options *, const u_char *, u_int); 746 extern void slow_print(netdissect_options *, const u_char *, u_int); 747 extern void smb_tcp_print(netdissect_options *, const u_char *, u_int); 748 extern void smtp_print(netdissect_options *, const u_char *, u_int); 749 extern int snap_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *, u_int); 750 extern void snmp_print(netdissect_options *, const u_char *, u_int); 751 extern void stp_print(netdissect_options *, const u_char *, u_int); 752 extern void sunrpc_print(netdissect_options *, const u_char *, u_int, const u_char *); 753 extern void syslog_print(netdissect_options *, const u_char *, u_int); 754 extern void tcp_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 755 extern void telnet_print(netdissect_options *, const u_char *, u_int); 756 extern void tftp_print(netdissect_options *, const u_char *, u_int); 757 extern void timed_print(netdissect_options *, const u_char *); 758 extern void tipc_print(netdissect_options *, const u_char *, u_int, u_int); 759 extern u_int token_print(netdissect_options *, const u_char *, u_int, u_int); 760 extern void udld_print(netdissect_options *, const u_char *, u_int); 761 extern void udp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, u_int); 762 extern int vjc_print(netdissect_options *, const u_char *, u_short); 763 extern void vqp_print(netdissect_options *, const u_char *, u_int); 764 extern void vrrp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, int); 765 extern void vtp_print(netdissect_options *, const u_char *, const u_int); 766 extern void vxlan_gpe_print(netdissect_options *, const u_char *, u_int); 767 extern void vxlan_print(netdissect_options *, const u_char *, u_int); 768 extern void wb_print(netdissect_options *, const u_char *, u_int); 769 extern void whois_print(netdissect_options *, const u_char *, u_int); 770 extern void zep_print(netdissect_options *, const u_char *, u_int); 771 extern void zephyr_print(netdissect_options *, const u_char *, u_int); 772 extern void zmtp1_print(netdissect_options *, const u_char *, u_int); 773 extern void zmtp1_datagram_print(netdissect_options *, const u_char *, const u_int); 774 extern void someip_print(netdissect_options *, const u_char *, const u_int); 775 776 /* checksum routines */ 777 extern uint16_t verify_crc10_cksum(uint16_t, const u_char *, int); 778 extern uint16_t create_osi_cksum(const uint8_t *, int, int); 779 780 struct cksum_vec { 781 const uint8_t *ptr; 782 int len; 783 }; 784 extern uint16_t in_cksum(const struct cksum_vec *, int); 785 extern uint16_t in_cksum_shouldbe(uint16_t, uint16_t); 786 787 /* IP protocol demuxing routines */ 788 extern void ip_demux_print(netdissect_options *, const u_char *, u_int, u_int, int, u_int, uint8_t, const u_char *); 789 790 extern uint16_t nextproto4_cksum(netdissect_options *, const struct ip *, const uint8_t *, u_int, u_int, uint8_t); 791 792 /* in print-ip6.c */ 793 extern uint16_t nextproto6_cksum(netdissect_options *, const struct ip6_hdr *, const uint8_t *, u_int, u_int, uint8_t); 794 795 /* Utilities */ 796 extern void nd_print_trunc(netdissect_options *); 797 extern void nd_print_protocol(netdissect_options *); 798 extern void nd_print_protocol_caps(netdissect_options *); 799 extern void nd_print_invalid(netdissect_options *); 800 801 extern int mask2plen(uint32_t); 802 extern int mask62plen(const u_char *); 803 804 extern const char *dnnum_string(netdissect_options *, u_short); 805 806 extern int decode_prefix4(netdissect_options *, const u_char *, u_int, char *, size_t); 807 extern int decode_prefix6(netdissect_options *, const u_char *, u_int, char *, size_t); 808 809 extern void esp_decodesecret_print(netdissect_options *); 810 extern int esp_decrypt_buffer_by_ikev2_print(netdissect_options *, int, 811 const u_char spii[8], 812 const u_char spir[8], 813 const u_char *, const u_char *); 814 815 extern void pfsync_if_print IF_PRINTER_ARGS; 816 extern void pfsync_ip_print(netdissect_options *, const u_char *, u_int, const u_char * __unused); 817 818 #endif /* netdissect_h */ 819
Indexes created Fri Jun 12 00:25:51 UTC 2026