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_Kflag; /* don't check IP, TCP or UDP checksums */ 212 int ndo_nflag; /* leave addresses as numbers */ 213 int ndo_Nflag; /* remove domains from printed host names */ 214 int ndo_qflag; /* quick (shorter) output */ 215 int ndo_Sflag; /* print raw TCP sequence numbers */ 216 int ndo_tflag; /* print packet arrival time */ 217 int ndo_uflag; /* Print undecoded NFS handles */ 218 int ndo_vflag; /* verbosity level */ 219 int ndo_xflag; /* print packet in hex */ 220 int ndo_Xflag; /* print packet in hex/ASCII */ 221 int ndo_Aflag; /* print packet only in ASCII observing TAB, 222 * LF, CR and SPACE as graphical chars 223 */ 224 int ndo_Hflag; /* dissect 802.11s draft mesh standard */ 225 const char *ndo_protocol; /* protocol */ 226 jmp_buf ndo_early_end; /* jmp_buf for setjmp()/longjmp() */ 227 void *ndo_last_mem_p; /* pointer to the last allocated memory chunk */ 228 int ndo_packet_number; /* print a packet number in the beginning of line */ 229 int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */ 230 int ndo_tstamp_precision; /* requested time stamp precision */ 231 const char *program_name; /* Name of the program using the library */ 232 233 char *ndo_espsecret; 234 struct sa_list *ndo_sa_list_head; /* used by print-esp.c */ 235 struct sa_list *ndo_sa_default; 236 237 char *ndo_sigsecret; /* Signature verification secret key */ 238 239 int ndo_packettype; /* as specified by -T */ 240 241 int ndo_snaplen; 242 int ndo_ll_hdr_len; /* link-layer header length */ 243 244 /*global pointers to beginning and end of current packet (during printing) */ 245 const u_char *ndo_packetp; 246 const u_char *ndo_snapend; 247 248 /* stack of saved packet boundary and buffer information */ 249 struct netdissect_saved_packet_info *ndo_packet_info_stack; 250 251 /* pointer to the if_printer function */ 252 if_printer ndo_if_printer; 253 254 /* pointer to void function to output stuff */ 255 void (*ndo_default_print)(netdissect_options *, 256 const u_char *bp, u_int length); 257 258 /* pointer to function to do regular output */ 259 int (*ndo_printf)(netdissect_options *, 260 const char *fmt, ...) 261 PRINTFLIKE_FUNCPTR(2, 3); 262 /* pointer to function to output errors */ 263 void NORETURN_FUNCPTR (*ndo_error)(netdissect_options *, 264 status_exit_codes_t status, 265 const char *fmt, ...) 266 PRINTFLIKE_FUNCPTR(3, 4); 267 /* pointer to function to output warnings */ 268 void (*ndo_warning)(netdissect_options *, 269 const char *fmt, ...) 270 PRINTFLIKE_FUNCPTR(2, 3); 271 }; 272 273 extern WARN_UNUSED_RESULT int nd_push_buffer(netdissect_options *, u_char *, const u_char *, const u_int); 274 extern WARN_UNUSED_RESULT int nd_push_snaplen(netdissect_options *, const u_char *, const u_int); 275 extern void nd_change_snaplen(netdissect_options *, const u_char *, const u_int); 276 extern void nd_pop_packet_info(netdissect_options *); 277 extern void nd_pop_all_packet_info(netdissect_options *); 278 279 /* 280 * Report a packet truncation with a longjmp(). 281 */ 282 NORETURN void nd_trunc_longjmp(netdissect_options *ndo); 283 284 #define PT_VAT 1 /* Visual Audio Tool */ 285 #define PT_WB 2 /* distributed White Board */ 286 #define PT_RPC 3 /* Remote Procedure Call */ 287 #define PT_RTP 4 /* Real-Time Applications protocol */ 288 #define PT_RTCP 5 /* Real-Time Applications control protocol */ 289 #define PT_SNMP 6 /* Simple Network Management Protocol */ 290 #define PT_CNFP 7 /* Cisco NetFlow protocol */ 291 #define PT_TFTP 8 /* trivial file transfer protocol */ 292 #define PT_AODV 9 /* Ad-hoc On-demand Distance Vector Protocol */ 293 #define PT_CARP 10 /* Common Address Redundancy Protocol */ 294 #define PT_RADIUS 11 /* RADIUS authentication Protocol */ 295 #define PT_ZMTP1 12 /* ZeroMQ Message Transport Protocol 1.0 */ 296 #define PT_VXLAN 13 /* Virtual eXtensible Local Area Network */ 297 #define PT_PGM 14 /* [UDP-encapsulated] Pragmatic General Multicast */ 298 #define PT_PGM_ZMTP1 15 /* ZMTP/1.0 inside PGM (native or UDP-encapsulated) */ 299 #define PT_LMP 16 /* Link Management Protocol */ 300 #define PT_RESP 17 /* RESP */ 301 #define PT_PTP 18 /* PTP */ 302 #define PT_SOMEIP 19 /* Autosar SOME/IP Protocol */ 303 #define PT_DOMAIN 20 /* Domain Name System (DNS) */ 304 305 #define ND_MIN(a,b) ((a)>(b)?(b):(a)) 306 #define ND_MAX(a,b) ((b)>(a)?(b):(a)) 307 308 /* For source or destination ports tests (UDP, TCP, ...) */ 309 #define IS_SRC_OR_DST_PORT(p) (sport == (p) || dport == (p)) 310 311 /* 312 * Maximum snapshot length. This should be enough to capture the full 313 * packet on most network interfaces. 314 * 315 * 316 * Somewhat arbitrary, but chosen to be: 317 * 318 * 1) big enough for maximum-size Linux loopback packets (65549) 319 * and some USB packets captured with USBPcap: 320 * 321 * https://desowin.org/usbpcap/ 322 * 323 * (> 131072, < 262144) 324 * 325 * and 326 * 327 * 2) small enough not to cause attempts to allocate huge amounts of 328 * memory; some applications might use the snapshot length in a 329 * savefile header to control the size of the buffer they allocate, 330 * so a size of, say, 2^31-1 might not work well. 331 * 332 * XXX - does it need to be bigger still? Note that, for versions of 333 * libpcap with pcap_create()/pcap_activate(), if no -s flag is specified 334 * or -s 0 is specified, we won't set the snapshot length at all, and will 335 * let libpcap choose a snapshot length; newer versions may choose a bigger 336 * value than 262144 for D-Bus, for example. 337 */ 338 #define MAXIMUM_SNAPLEN 262144 339 340 /* 341 * True if "l" bytes from "p" were captured. 342 * 343 * The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure 344 * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows. 345 * 346 * The check is for <= rather than < because "l" might be 0. 347 * 348 * We cast the pointers to uintptr_t to make sure that the compiler 349 * doesn't optimize away any of these tests (which it is allowed to 350 * do, as adding an integer to, or subtracting an integer from, a 351 * pointer assumes that the pointer is a pointer to an element of an 352 * array and that the result of the addition or subtraction yields a 353 * pointer to another member of the array, so that, for example, if 354 * you subtract a positive integer from a pointer, the result is 355 * guaranteed to be less than the original pointer value). See 356 * 357 * https://www.kb.cert.org/vuls/id/162289 358 */ 359 360 /* 361 * Test in two parts to avoid these warnings: 362 * comparison of unsigned expression >= 0 is always true [-Wtype-limits], 363 * comparison is always true due to limited range of data type [-Wtype-limits]. 364 */ 365 #define IS_NOT_NEGATIVE(x) (((x) > 0) || ((x) == 0)) 366 367 #define ND_TTEST_LEN(p, l) \ 368 (IS_NOT_NEGATIVE(l) && \ 369 ((uintptr_t)ndo->ndo_snapend - (l) <= (uintptr_t)ndo->ndo_snapend && \ 370 (uintptr_t)(p) <= (uintptr_t)ndo->ndo_snapend - (l))) 371 372 /* True if "*(p)" was captured */ 373 #define ND_TTEST_SIZE(p) ND_TTEST_LEN(p, sizeof(*(p))) 374 375 /* Bail out if "l" bytes from "p" were not captured */ 376 #ifdef ND_LONGJMP_FROM_TCHECK 377 #define ND_TCHECK_LEN(p, l) if (!ND_TTEST_LEN(p, l)) nd_trunc_longjmp(ndo) 378 #else 379 #define ND_TCHECK_LEN(p, l) if (!ND_TTEST_LEN(p, l)) goto trunc 380 #endif 381 382 /* Bail out if "*(p)" was not captured */ 383 #define ND_TCHECK_SIZE(p) ND_TCHECK_LEN(p, sizeof(*(p))) 384 385 /* 386 * Number of bytes between two pointers. 387 */ 388 #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)))) 389 390 /* 391 * Number of bytes remaining in the captured data, starting at the 392 * byte pointed to by the argument. 393 */ 394 #define ND_BYTES_AVAILABLE_AFTER(p) ((const u_char *)(p) < ndo->ndo_packetp ? 0 : ND_BYTES_BETWEEN((p), ndo->ndo_snapend)) 395 396 /* 397 * Check (expression_1 operator expression_2) for invalid packet with 398 * a custom message, format %u 399 */ 400 #define ND_ICHECKMSG_U(message, expression_1, operator, expression_2) \ 401 if ((expression_1) operator (expression_2)) { \ 402 ND_PRINT(" [%s %u %s %u]", (message), (expression_1), (#operator), (expression_2)); \ 403 goto invalid; \ 404 } 405 406 /* 407 * Check (expression_1 operator expression_2) for invalid packet with 408 * "expression_1" message, format %u 409 */ 410 #define ND_ICHECK_U(expression_1, operator, expression_2) \ 411 ND_ICHECKMSG_U((#expression_1), (expression_1), operator, (expression_2)) 412 413 /* 414 * Check (expression_1 operator expression_2) for invalid packet with 415 * a custom message, format %zu 416 */ 417 #define ND_ICHECKMSG_ZU(message, expression_1, operator, expression_2) \ 418 if ((expression_1) operator (expression_2)) { \ 419 ND_PRINT(" [%s %u %s %zu]", (message), (expression_1), (#operator), (expression_2)); \ 420 goto invalid; \ 421 } 422 423 /* 424 * Check (expression_1 operator expression_2) for invalid packet with 425 * "expression_1" message, format %zu 426 */ 427 #define ND_ICHECK_ZU(expression_1, operator, expression_2) \ 428 ND_ICHECKMSG_ZU((#expression_1), (expression_1), operator, (expression_2)) 429 430 #define ND_PRINT(...) (ndo->ndo_printf)(ndo, __VA_ARGS__) 431 #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length) 432 433 extern void ts_print(netdissect_options *, const struct timeval *); 434 extern void signed_relts_print(netdissect_options *, int32_t); 435 extern void unsigned_relts_print(netdissect_options *, uint32_t); 436 437 extern const char *nd_format_time(char *buf, size_t bufsize, 438 const char *format, const struct tm *timeptr); 439 440 extern void fn_print_char(netdissect_options *, u_char); 441 extern void fn_print_str(netdissect_options *, const u_char *); 442 extern u_int nd_printztn(netdissect_options *, const u_char *, u_int, const u_char *); 443 extern int nd_printn(netdissect_options *, const u_char *, u_int, const u_char *); 444 extern void nd_printjn(netdissect_options *, const u_char *, u_int); 445 extern void nd_printjnp(netdissect_options *, const u_char *, u_int); 446 447 /* 448 * Flags for txtproto_print(). 449 */ 450 #define RESP_CODE_SECOND_TOKEN 0x00000001 /* response code is second token in response line */ 451 452 extern void txtproto_print(netdissect_options *, const u_char *, u_int, 453 const char **, u_int); 454 455 #if (defined(__i386__) || defined(_M_IX86) || defined(__X86__) || defined(__x86_64__) || defined(_M_X64)) || \ 456 (defined(__arm__) || defined(_M_ARM) || defined(__aarch64__)) || \ 457 (defined(__m68k__) && (!defined(__mc68000__) && !defined(__mc68010__))) || \ 458 (defined(__ppc__) || defined(__ppc64__) || defined(_M_PPC) || defined(_ARCH_PPC) || defined(_ARCH_PPC64)) || \ 459 (defined(__s390__) || defined(__s390x__) || defined(__zarch__)) || \ 460 defined(__vax__) 461 /* 462 * The processor natively handles unaligned loads, so just use memcpy() 463 * and memcmp(), to enable those optimizations. 464 * 465 * XXX - are those all the x86 tests we need? 466 * XXX - do we need to worry about ARMv1 through ARMv5, which didn't 467 * support unaligned loads, and, if so, do we need to worry about all 468 * of them, or just some of them, e.g. ARMv5? 469 * XXX - are those the only 68k tests we need not to generated 470 * unaligned accesses if the target is the 68000 or 68010? 471 * XXX - are there any tests we don't need, because some definitions are for 472 * compilers that also predefine the GCC symbols? 473 * XXX - do we need to test for both 32-bit and 64-bit versions of those 474 * architectures in all cases? 475 */ 476 #define UNALIGNED_MEMCPY(p, q, l) memcpy((p), (q), (l)) 477 #define UNALIGNED_MEMCMP(p, q, l) memcmp((p), (q), (l)) 478 #else 479 /* 480 * The processor doesn't natively handle unaligned loads, 481 * and the compiler might "helpfully" optimize memcpy() 482 * and memcmp(), when handed pointers that would normally 483 * be properly aligned, into sequences that assume proper 484 * alignment. 485 * 486 * Do copies and compares of possibly-unaligned data by 487 * calling routines that wrap memcpy() and memcmp(), to 488 * prevent that optimization. 489 */ 490 extern void unaligned_memcpy(void *, const void *, size_t); 491 extern int unaligned_memcmp(const void *, const void *, size_t); 492 #define UNALIGNED_MEMCPY(p, q, l) unaligned_memcpy((p), (q), (l)) 493 #define UNALIGNED_MEMCMP(p, q, l) unaligned_memcmp((p), (q), (l)) 494 #endif 495 496 #define PLURAL_SUFFIX(n) \ 497 (((n) != 1) ? "s" : "") 498 499 extern const char *tok2strary_internal(const char **, int, const char *, int); 500 #define tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i) 501 502 struct uint_tokary 503 { 504 u_int uintval; 505 const struct tok *tokary; 506 }; 507 508 extern const struct tok *uint2tokary_internal(const struct uint_tokary[], const size_t, const u_int); 509 #define uint2tokary(a, i) uint2tokary_internal(a, sizeof(a)/sizeof(a[0]), i) 510 511 extern if_printer lookup_printer(int); 512 513 #define ND_DEBUG {printf(" [%s:%d %s] ", __FILE__, __LINE__, __func__); fflush(stdout);} 514 515 /* The DLT printer routines */ 516 517 extern void ap1394_if_print IF_PRINTER_ARGS; 518 extern void arcnet_if_print IF_PRINTER_ARGS; 519 extern void arcnet_linux_if_print IF_PRINTER_ARGS; 520 extern void atm_if_print IF_PRINTER_ARGS; 521 extern void brcm_tag_if_print IF_PRINTER_ARGS; 522 extern void brcm_tag_prepend_if_print IF_PRINTER_ARGS; 523 extern void bt_if_print IF_PRINTER_ARGS; 524 extern void chdlc_if_print IF_PRINTER_ARGS; 525 extern void cip_if_print IF_PRINTER_ARGS; 526 extern void dsa_if_print IF_PRINTER_ARGS; 527 extern void edsa_if_print IF_PRINTER_ARGS; 528 extern void enc_if_print IF_PRINTER_ARGS; 529 extern void ether_if_print IF_PRINTER_ARGS; 530 extern void fddi_if_print IF_PRINTER_ARGS; 531 extern void fr_if_print IF_PRINTER_ARGS; 532 extern void ieee802_11_if_print IF_PRINTER_ARGS; 533 extern void ieee802_11_radio_avs_if_print IF_PRINTER_ARGS; 534 extern void ieee802_11_radio_if_print IF_PRINTER_ARGS; 535 extern void ieee802_15_4_if_print IF_PRINTER_ARGS; 536 extern void ieee802_15_4_tap_if_print IF_PRINTER_ARGS; 537 extern void ipfc_if_print IF_PRINTER_ARGS; 538 extern void ipnet_if_print IF_PRINTER_ARGS; 539 extern void ipoib_if_print IF_PRINTER_ARGS; 540 extern void juniper_atm1_if_print IF_PRINTER_ARGS; 541 extern void juniper_atm2_if_print IF_PRINTER_ARGS; 542 extern void juniper_chdlc_if_print IF_PRINTER_ARGS; 543 extern void juniper_es_if_print IF_PRINTER_ARGS; 544 extern void juniper_ether_if_print IF_PRINTER_ARGS; 545 extern void juniper_frelay_if_print IF_PRINTER_ARGS; 546 extern void juniper_ggsn_if_print IF_PRINTER_ARGS; 547 extern void juniper_mfr_if_print IF_PRINTER_ARGS; 548 extern void juniper_mlfr_if_print IF_PRINTER_ARGS; 549 extern void juniper_mlppp_if_print IF_PRINTER_ARGS; 550 extern void juniper_monitor_if_print IF_PRINTER_ARGS; 551 extern void juniper_ppp_if_print IF_PRINTER_ARGS; 552 extern void juniper_pppoe_atm_if_print IF_PRINTER_ARGS; 553 extern void juniper_pppoe_if_print IF_PRINTER_ARGS; 554 extern void juniper_services_if_print IF_PRINTER_ARGS; 555 extern void ltalk_if_print IF_PRINTER_ARGS; 556 extern void mfr_if_print IF_PRINTER_ARGS; 557 extern void netanalyzer_if_print IF_PRINTER_ARGS; 558 extern void netanalyzer_transparent_if_print IF_PRINTER_ARGS; 559 extern void nflog_if_print IF_PRINTER_ARGS; 560 extern void null_if_print IF_PRINTER_ARGS; 561 extern void pflog_if_print IF_PRINTER_ARGS; 562 extern void pktap_if_print IF_PRINTER_ARGS; 563 extern void ppi_if_print IF_PRINTER_ARGS; 564 extern void ppp_bsdos_if_print IF_PRINTER_ARGS; 565 extern void ppp_hdlc_if_print IF_PRINTER_ARGS; 566 extern void ppp_if_print IF_PRINTER_ARGS; 567 extern void pppoe_if_print IF_PRINTER_ARGS; 568 extern void prism_if_print IF_PRINTER_ARGS; 569 extern void raw_if_print IF_PRINTER_ARGS; 570 extern void sl_bsdos_if_print IF_PRINTER_ARGS; 571 extern void sl_if_print IF_PRINTER_ARGS; 572 extern void sll2_if_print IF_PRINTER_ARGS; 573 extern void sll_if_print IF_PRINTER_ARGS; 574 extern void sunatm_if_print IF_PRINTER_ARGS; 575 extern void symantec_if_print IF_PRINTER_ARGS; 576 extern void token_if_print IF_PRINTER_ARGS; 577 extern void unsupported_if_print IF_PRINTER_ARGS; 578 extern void usb_linux_48_byte_if_print IF_PRINTER_ARGS; 579 extern void usb_linux_64_byte_if_print IF_PRINTER_ARGS; 580 extern void vsock_if_print IF_PRINTER_ARGS; 581 582 /* 583 * Structure passed to some printers to allow them to print 584 * link-layer address information if ndo_eflag isn't set 585 * (because they are for protocols that don't have their 586 * own addresses, so that we'd want to report link-layer 587 * address information). 588 * 589 * This contains a pointer to an address and a pointer to a routine 590 * to which we pass that pointer in order to get a string. 591 */ 592 struct lladdr_info { 593 const char *(*addr_string)(netdissect_options *, const u_char *); 594 const u_char *addr; 595 }; 596 597 /* The printer routines. */ 598 599 extern void aarp_print(netdissect_options *, const u_char *, u_int); 600 extern int ah_print(netdissect_options *, const u_char *); 601 extern void ahcp_print(netdissect_options *, const u_char *, u_int); 602 extern void aodv_print(netdissect_options *, const u_char *, u_int, int); 603 extern void aoe_print(netdissect_options *, const u_char *, const u_int); 604 extern int arista_ethertype_print(netdissect_options *,const u_char *, u_int); 605 extern void arp_print(netdissect_options *, const u_char *, u_int, u_int); 606 extern void ascii_print(netdissect_options *, const u_char *, u_int); 607 extern void atalk_print(netdissect_options *, const u_char *, u_int); 608 extern void atm_print(netdissect_options *, u_int, u_int, u_int, const u_char *, u_int, u_int); 609 extern void babel_print(netdissect_options *, const u_char *, u_int); 610 extern void bcm_li_print(netdissect_options *, const u_char *, u_int); 611 extern void beep_print(netdissect_options *, const u_char *, u_int); 612 extern void bfd_print(netdissect_options *, const u_char *, u_int, u_int); 613 extern void bgp_print(netdissect_options *, const u_char *, u_int); 614 extern const char *bgp_vpn_rd_print(netdissect_options *, const u_char *); 615 extern void bootp_print(netdissect_options *, const u_char *, u_int); 616 extern void calm_fast_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *); 617 extern void carp_print(netdissect_options *, const u_char *, u_int, u_int); 618 extern void cdp_print(netdissect_options *, const u_char *, u_int); 619 extern void cfm_print(netdissect_options *, const u_char *, u_int); 620 extern u_int chdlc_print(netdissect_options *, const u_char *, u_int); 621 extern void cisco_autorp_print(netdissect_options *, const u_char *, u_int); 622 extern void cnfp_print(netdissect_options *, const u_char *); 623 extern void dccp_print(netdissect_options *, const u_char *, const u_char *, u_int); 624 extern void decnet_print(netdissect_options *, const u_char *, u_int, u_int); 625 extern void dhcp6_print(netdissect_options *, const u_char *, u_int); 626 extern int dstopt_process(netdissect_options *, const u_char *); 627 extern void dtp_print(netdissect_options *, const u_char *, u_int); 628 extern void dvmrp_print(netdissect_options *, const u_char *, u_int); 629 extern void eap_print(netdissect_options *, const u_char *, u_int); 630 extern void eapol_print(netdissect_options *, const u_char *); 631 extern void egp_print(netdissect_options *, const u_char *, u_int); 632 extern void eigrp_print(netdissect_options *, const u_char *, u_int); 633 extern void esp_print(netdissect_options *, const u_char *, u_int, const u_char *, u_int, int, u_int); 634 extern u_int ether_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), const u_char *); 635 extern u_int ether_switch_tag_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), u_int); 636 extern int ethertype_print(netdissect_options *, u_short, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *); 637 extern u_int fddi_print(netdissect_options *, const u_char *, u_int, u_int); 638 extern void forces_print(netdissect_options *, const u_char *, u_int); 639 extern u_int fr_print(netdissect_options *, const u_char *, u_int); 640 extern int frag6_print(netdissect_options *, const u_char *, const u_char *); 641 extern void ftp_print(netdissect_options *, const u_char *, u_int); 642 extern void geneve_print(netdissect_options *, const u_char *, u_int); 643 extern void geonet_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *); 644 extern void gre_print(netdissect_options *, const u_char *, u_int); 645 extern int hbhopt_process(netdissect_options *, const u_char *, int *, uint32_t *); 646 extern void hex_and_ascii_print(netdissect_options *, const char *, const u_char *, u_int); 647 extern void hex_print(netdissect_options *, const char *ident, const u_char *cp, u_int); 648 extern void hex_print_with_offset(netdissect_options *, const char *ident, const u_char *cp, u_int, u_int); 649 extern void hncp_print(netdissect_options *, const u_char *, u_int); 650 extern void hsrp_print(netdissect_options *, const u_char *, u_int); 651 extern void http_print(netdissect_options *, const u_char *, u_int); 652 extern void icmp6_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 653 extern void icmp_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 654 extern u_int ieee802_15_4_print(netdissect_options *, const u_char *, u_int); 655 extern u_int ieee802_11_radio_print(netdissect_options *, const u_char *, u_int, u_int); 656 extern void igmp_print(netdissect_options *, const u_char *, u_int); 657 extern void igrp_print(netdissect_options *, const u_char *, u_int); 658 extern void ip6_print(netdissect_options *, const u_char *, u_int); 659 extern void ipN_print(netdissect_options *, const u_char *, u_int); 660 extern void ip_print(netdissect_options *, const u_char *, const u_int); 661 extern void ipcomp_print(netdissect_options *, const u_char *); 662 extern void ipx_netbios_print(netdissect_options *, const u_char *, u_int); 663 extern void ipx_print(netdissect_options *, const u_char *, u_int); 664 extern void isakmp_print(netdissect_options *, const u_char *, u_int, const u_char *); 665 extern void isakmp_rfc3948_print(netdissect_options *, const u_char *, u_int, const u_char *, int, int, u_int); 666 extern void isoclns_print(netdissect_options *, const u_char *, u_int); 667 extern void krb_print(netdissect_options *, const u_char *); 668 extern void l2tp_print(netdissect_options *, const u_char *, u_int); 669 extern void lane_print(netdissect_options *, const u_char *, u_int, u_int); 670 extern void ldp_print(netdissect_options *, const u_char *, u_int); 671 extern void lisp_print(netdissect_options *, const u_char *, u_int); 672 extern u_int llap_print(netdissect_options *, const u_char *, u_int); 673 extern int llc_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *); 674 extern void lldp_print(netdissect_options *, const u_char *, u_int); 675 extern void lmp_print(netdissect_options *, const u_char *, u_int); 676 extern void loopback_print(netdissect_options *, const u_char *, u_int); 677 extern void lspping_print(netdissect_options *, const u_char *, u_int); 678 extern void lwapp_control_print(netdissect_options *, const u_char *, u_int, int); 679 extern void lwapp_data_print(netdissect_options *, const u_char *, u_int); 680 extern void lwres_print(netdissect_options *, const u_char *, u_int); 681 extern void m3ua_print(netdissect_options *, const u_char *, const u_int); 682 extern int macsec_print(netdissect_options *, const u_char **, 683 u_int *, u_int *, u_int *, const struct lladdr_info *, 684 const struct lladdr_info *); 685 extern u_int mfr_print(netdissect_options *, const u_char *, u_int); 686 extern void mobile_print(netdissect_options *, const u_char *, u_int); 687 extern int mobility_print(netdissect_options *, const u_char *, const u_char *); 688 extern void mpcp_print(netdissect_options *, const u_char *, u_int); 689 extern void mpls_print(netdissect_options *, const u_char *, u_int); 690 extern int mptcp_print(netdissect_options *, const u_char *, u_int, u_char); 691 extern void msdp_print(netdissect_options *, const u_char *, u_int); 692 extern void msnlb_print(netdissect_options *, const u_char *); 693 extern void nbt_tcp_print(netdissect_options *, const u_char *, u_int); 694 extern void nbt_udp137_print(netdissect_options *, const u_char *, u_int); 695 extern void nbt_udp138_print(netdissect_options *, const u_char *, u_int); 696 extern void netbeui_print(netdissect_options *, u_short, const u_char *, u_int); 697 extern void nfsreply_print(netdissect_options *, const u_char *, u_int, const u_char *); 698 extern void nfsreply_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *); 699 extern void nfsreq_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *); 700 extern const u_char *fqdn_print(netdissect_options *, const u_char *, const u_char *); 701 extern void domain_print(netdissect_options *, const u_char *, u_int, int, int); 702 extern void nsh_print(netdissect_options *, const u_char *, u_int); 703 extern void ntp_print(netdissect_options *, const u_char *, u_int); 704 extern void oam_print(netdissect_options *, const u_char *, u_int, u_int); 705 extern void olsr_print(netdissect_options *, const u_char *, u_int, int); 706 extern void openflow_print(netdissect_options *, const u_char *, u_int); 707 extern void ospf6_print(netdissect_options *, const u_char *, u_int); 708 extern void ospf_print(netdissect_options *, const u_char *, u_int, const u_char *); 709 extern int ospf_grace_lsa_print(netdissect_options *, const u_char *, u_int); 710 extern int ospf_te_lsa_print(netdissect_options *, const u_char *, u_int); 711 extern void otv_print(netdissect_options *, const u_char *, u_int); 712 extern void pgm_print(netdissect_options *, const u_char *, u_int, const u_char *); 713 extern void pim_print(netdissect_options *, const u_char *, u_int, const u_char *); 714 extern void pimv1_print(netdissect_options *, const u_char *, u_int); 715 extern u_int ppp_print(netdissect_options *, const u_char *, u_int); 716 extern u_int pppoe_print(netdissect_options *, const u_char *, u_int); 717 extern void pptp_print(netdissect_options *, const u_char *); 718 extern void ptp_print(netdissect_options *, const u_char *, u_int); 719 extern int print_unknown_data(netdissect_options *, const u_char *, const char *, u_int); 720 extern const char *q922_string(netdissect_options *, const u_char *, u_int); 721 extern void q933_print(netdissect_options *, const u_char *, u_int); 722 extern void radius_print(netdissect_options *, const u_char *, u_int); 723 extern void resp_print(netdissect_options *, const u_char *, u_int); 724 extern void rip_print(netdissect_options *, const u_char *, u_int); 725 extern void ripng_print(netdissect_options *, const u_char *, unsigned int); 726 extern void rpki_rtr_print(netdissect_options *, const u_char *, u_int); 727 extern void rsvp_print(netdissect_options *, const u_char *, u_int); 728 extern int rt6_print(netdissect_options *, const u_char *, const u_char *); 729 extern void rtl_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *, const struct lladdr_info *); 730 extern void rtsp_print(netdissect_options *, const u_char *, u_int); 731 extern void rx_print(netdissect_options *, const u_char *, u_int, uint16_t, uint16_t, const u_char *); 732 extern void sctp_print(netdissect_options *, const u_char *, const u_char *, u_int); 733 extern void sflow_print(netdissect_options *, const u_char *, u_int); 734 extern void ssh_print(netdissect_options *, const u_char *, u_int); 735 extern void sip_print(netdissect_options *, const u_char *, u_int); 736 extern void slow_print(netdissect_options *, const u_char *, u_int); 737 extern void smb_tcp_print(netdissect_options *, const u_char *, u_int); 738 extern void smtp_print(netdissect_options *, const u_char *, u_int); 739 extern int snap_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *, u_int); 740 extern void snmp_print(netdissect_options *, const u_char *, u_int); 741 extern void stp_print(netdissect_options *, const u_char *, u_int); 742 extern void sunrpc_print(netdissect_options *, const u_char *, u_int, const u_char *); 743 extern void syslog_print(netdissect_options *, const u_char *, u_int); 744 extern void tcp_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 745 extern void telnet_print(netdissect_options *, const u_char *, u_int); 746 extern void tftp_print(netdissect_options *, const u_char *, u_int); 747 extern void timed_print(netdissect_options *, const u_char *); 748 extern void tipc_print(netdissect_options *, const u_char *, u_int, u_int); 749 extern u_int token_print(netdissect_options *, const u_char *, u_int, u_int); 750 extern void udld_print(netdissect_options *, const u_char *, u_int); 751 extern void udp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, u_int); 752 extern int vjc_print(netdissect_options *, const u_char *, u_short); 753 extern void vqp_print(netdissect_options *, const u_char *, u_int); 754 extern void vrrp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, int); 755 extern void vtp_print(netdissect_options *, const u_char *, const u_int); 756 extern void vxlan_gpe_print(netdissect_options *, const u_char *, u_int); 757 extern void vxlan_print(netdissect_options *, const u_char *, u_int); 758 extern void wb_print(netdissect_options *, const u_char *, u_int); 759 extern void whois_print(netdissect_options *, const u_char *, u_int); 760 extern void zep_print(netdissect_options *, const u_char *, u_int); 761 extern void zephyr_print(netdissect_options *, const u_char *, u_int); 762 extern void zmtp1_print(netdissect_options *, const u_char *, u_int); 763 extern void zmtp1_datagram_print(netdissect_options *, const u_char *, const u_int); 764 extern void someip_print(netdissect_options *, const u_char *, const u_int); 765 766 /* checksum routines */ 767 extern uint16_t verify_crc10_cksum(uint16_t, const u_char *, int); 768 extern uint16_t create_osi_cksum(const uint8_t *, int, int); 769 770 struct cksum_vec { 771 const uint8_t *ptr; 772 int len; 773 }; 774 extern uint16_t in_cksum(const struct cksum_vec *, int); 775 extern uint16_t in_cksum_shouldbe(uint16_t, uint16_t); 776 777 /* IP protocol demuxing routines */ 778 extern void ip_demux_print(netdissect_options *, const u_char *, u_int, u_int, int, u_int, uint8_t, const u_char *); 779 780 extern uint16_t nextproto4_cksum(netdissect_options *, const struct ip *, const uint8_t *, u_int, u_int, uint8_t); 781 782 /* in print-ip6.c */ 783 extern uint16_t nextproto6_cksum(netdissect_options *, const struct ip6_hdr *, const uint8_t *, u_int, u_int, uint8_t); 784 785 /* Utilities */ 786 extern void nd_print_trunc(netdissect_options *); 787 extern void nd_print_protocol(netdissect_options *); 788 extern void nd_print_protocol_caps(netdissect_options *); 789 extern void nd_print_invalid(netdissect_options *); 790 791 extern int mask2plen(uint32_t); 792 extern int mask62plen(const u_char *); 793 794 extern const char *dnnum_string(netdissect_options *, u_short); 795 796 extern int decode_prefix4(netdissect_options *, const u_char *, u_int, char *, size_t); 797 extern int decode_prefix6(netdissect_options *, const u_char *, u_int, char *, size_t); 798 799 extern void esp_decodesecret_print(netdissect_options *); 800 extern int esp_decrypt_buffer_by_ikev2_print(netdissect_options *, int, 801 const u_char spii[8], 802 const u_char spir[8], 803 const u_char *, const u_char *); 804 805 extern void pfsync_if_print IF_PRINTER_ARGS; 806 extern void pfsync_ip_print(netdissect_options *, const u_char *, u_int, const u_char * __unused); 807 808 #endif /* netdissect_h */ 809
Indexes created Tue Feb 24 01:34:59 UTC 2026