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@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 "status-exit-codes.h" 34#include "funcattrs.h" /* for PRINTFLIKE_FUNCPTR() */ 35#include "diag-control.h" /* for ND_UNREACHABLE */ 36 37/* 38 * Data types corresponding to multi-byte integral values within data 39 * structures. These are defined as arrays of octets, so that they're 40 * not aligned on their "natural" boundaries, and so that you *must* 41 * use the EXTRACT_ macros to extract them (which you should be doing 42 * *anyway*, so as not to assume a particular byte order or alignment 43 * in your code). 44 * 45 * We even want EXTRACT_U_1 used for 8-bit integral values, so we 46 * define nd_uint8_t and nd_int8_t as arrays as well. 47 */ 48typedef unsigned char nd_uint8_t[1]; 49typedef unsigned char nd_uint16_t[2]; 50typedef unsigned char nd_uint24_t[3]; 51typedef unsigned char nd_uint32_t[4]; 52typedef unsigned char nd_uint40_t[5]; 53typedef unsigned char nd_uint48_t[6]; 54typedef unsigned char nd_uint56_t[7]; 55typedef unsigned char nd_uint64_t[8]; 56 57typedef signed char nd_int8_t[1]; 58 59/* 60 * "unsigned char" so that sign extension isn't done on the 61 * individual bytes while they're being assembled. 62 */ 63typedef unsigned char nd_int32_t[4]; 64typedef unsigned char nd_int64_t[8]; 65 66#define FMAXINT (4294967296.0) /* floating point rep. of MAXINT */ 67 68/* 69 * Use this for IPv4 addresses and netmasks. 70 * 71 * It's defined as an array of octets, so that it's not guaranteed to 72 * be aligned on its "natural" boundary (in some packet formats, it 73 * *isn't* so aligned). We have separate EXTRACT_ calls for them; 74 * sometimes you want the host-byte-order value, other times you want 75 * the network-byte-order value. 76 * 77 * Don't use EXTRACT_BE_U_4() on them, use EXTRACT_IPV4_TO_HOST_ORDER() 78 * if you want them in host byte order and EXTRACT_IPV4_TO_NETWORK_ORDER() 79 * if you want them in network byte order (which you want with system APIs 80 * that expect network-order IPv4 addresses, such as inet_ntop()). 81 * 82 * If, on your little-endian machine (e.g., an "IBM-compatible PC", no matter 83 * what the OS, or an Intel Mac, no matter what the OS), you get the wrong 84 * answer, and you've used EXTRACT_BE_U_4(), do *N*O*T* "fix" this by using 85 * EXTRACT_LE_U_4(), fix it by using EXTRACT_IPV4_TO_NETWORK_ORDER(), 86 * otherwise you're breaking the result on big-endian machines (e.g., 87 * most PowerPC/Power ISA machines, System/390 and z/Architecture, SPARC, 88 * etc.). 89 * 90 * Yes, people do this; that's why Wireshark has tvb_get_ipv4(), to extract 91 * an IPv4 address from a packet data buffer; it was introduced in reaction 92 * to somebody who *had* done that. 93 */ 94typedef unsigned char nd_ipv4[4]; 95 96/* 97 * Use this for IPv6 addresses and netmasks. 98 */ 99typedef unsigned char nd_ipv6[16]; 100 101/* 102 * Use this for MAC addresses. 103 */ 104#define MAC_ADDR_LEN 6U /* length of MAC addresses */ 105typedef unsigned char nd_mac_addr[MAC_ADDR_LEN]; 106 107/* 108 * Use this for blobs of bytes; make them arrays of nd_byte. 109 */ 110typedef unsigned char nd_byte; 111 112/* 113 * Round up x to a multiple of y; y must be a power of 2. 114 */ 115#ifndef roundup2 116#define roundup2(x, y) (((x)+((u_int)((y)-1)))&(~((u_int)((y)-1)))) 117#endif 118 119#include <stdarg.h> 120#include <pcap.h> 121 122#include "ip.h" /* struct ip for nextproto4_cksum() */ 123#include "ip6.h" /* struct ip6 for nextproto6_cksum() */ 124 125#ifndef HAVE_STRLCAT 126extern size_t strlcat (char *, const char *, size_t); 127#endif 128#ifndef HAVE_STRLCPY 129extern size_t strlcpy (char *, const char *, size_t); 130#endif 131 132#ifndef HAVE_STRDUP 133extern char *strdup (const char *str); 134#endif 135 136#ifndef HAVE_STRSEP 137extern char *strsep(char **, const char *); 138#endif 139 140struct tok { 141 u_int v; /* value */ 142 const char *s; /* string */ 143}; 144 145/* tok2str is deprecated */ 146extern const char *tok2str(const struct tok *, const char *, u_int); 147extern char *bittok2str(const struct tok *, const char *, u_int); 148extern char *bittok2str_nosep(const struct tok *, const char *, u_int); 149 150/* Initialize netdissect. */ 151extern int nd_init(char *, size_t); 152/* Clean up netdissect. */ 153extern void nd_cleanup(void); 154 155/* Do we have libsmi support? */ 156extern int nd_have_smi_support(void); 157/* Load an SMI module. */ 158extern int nd_load_smi_module(const char *, char *, size_t); 159/* Flag indicating whether an SMI module has been loaded. */ 160extern int nd_smi_module_loaded; 161/* Version number of the SMI library, or NULL if we don't have libsmi support. */ 162extern const char *nd_smi_version_string(void); 163 164typedef struct netdissect_options netdissect_options; 165 166#define IF_PRINTER_ARGS (netdissect_options *, const struct pcap_pkthdr *, const u_char *) 167 168typedef void (*if_printer) IF_PRINTER_ARGS; 169 170/* 171 * In case the data in a buffer needs to be processed by being decrypted, 172 * decompressed, etc. before it's dissected, we can't process it in place, 173 * we have to allocate a new buffer for the processed data. 174 * 175 * We keep a stack of those buffers; when we allocate a new buffer, we 176 * push the current one onto a stack, and when we're done with the new 177 * buffer, we free the current buffer and pop the previous one off the 178 * stack. 179 * 180 * A buffer has a beginning and end pointer, and a link to the previous 181 * buffer on the stack. 182 * 183 * In other cases, we temporarily adjust the snapshot end to reflect a 184 * packet-length field in the packet data and, when finished dissecting 185 * that part of the packet, restore the old snapshot end. We keep that 186 * on the stack with null buffer pointer, meaning there's nothing to 187 * free. 188 */ 189struct netdissect_saved_packet_info { 190 u_char *ndspi_buffer; /* pointer to allocated buffer data */ 191 const u_char *ndspi_packetp; /* saved beginning of data */ 192 const u_char *ndspi_snapend; /* saved end of data */ 193 struct netdissect_saved_packet_info *ndspi_prev; /* previous buffer on the stack */ 194}; 195 196/* 'val' value(s) for longjmp */ 197#define ND_TRUNCATED 1 198 199struct netdissect_options { 200 int ndo_bflag; /* print 4 byte ASes in ASDOT notation */ 201 int ndo_eflag; /* print ethernet header */ 202 int ndo_fflag; /* don't translate "foreign" IP address */ 203 int ndo_Kflag; /* don't check IP, TCP or UDP checksums */ 204 int ndo_nflag; /* leave addresses as numbers */ 205 int ndo_Nflag; /* remove domains from printed host names */ 206 int ndo_qflag; /* quick (shorter) output */ 207 int ndo_Sflag; /* print raw TCP sequence numbers */ 208 int ndo_tflag; /* print packet arrival time */ 209 int ndo_uflag; /* Print undecoded NFS handles */ 210 int ndo_vflag; /* verbosity level */ 211 int ndo_xflag; /* print packet in hex */ 212 int ndo_Xflag; /* print packet in hex/ASCII */ 213 int ndo_Aflag; /* print packet only in ASCII observing TAB, 214 * LF, CR and SPACE as graphical chars 215 */ 216 int ndo_Hflag; /* dissect 802.11s draft mesh standard */ 217 const char *ndo_protocol; /* protocol */ 218 jmp_buf ndo_early_end; /* jmp_buf for setjmp()/longjmp() */ 219 void *ndo_last_mem_p; /* pointer to the last allocated memory chunk */ 220 int ndo_packet_number; /* print a packet number in the beginning of line */ 221 int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */ 222 int ndo_tstamp_precision; /* requested time stamp precision */ 223 const char *program_name; /* Name of the program using the library */ 224 225 char *ndo_espsecret; 226 struct sa_list *ndo_sa_list_head; /* used by print-esp.c */ 227 struct sa_list *ndo_sa_default; 228 229 char *ndo_sigsecret; /* Signature verification secret key */ 230 231 int ndo_packettype; /* as specified by -T */ 232 233 int ndo_snaplen; 234 int ndo_ll_hdr_len; /* link-layer header length */ 235 236 /*global pointers to beginning and end of current packet (during printing) */ 237 const u_char *ndo_packetp; 238 const u_char *ndo_snapend; 239 240 /* stack of saved packet boundary and buffer information */ 241 struct netdissect_saved_packet_info *ndo_packet_info_stack; 242 243 /* pointer to the if_printer function */ 244 if_printer ndo_if_printer; 245 246 /* pointer to void function to output stuff */ 247 void (*ndo_default_print)(netdissect_options *, 248 const u_char *bp, u_int length); 249 250 /* pointer to function to do regular output */ 251 int (*ndo_printf)(netdissect_options *, 252 const char *fmt, ...) 253 PRINTFLIKE_FUNCPTR(2, 3); 254 /* pointer to function to output errors */ 255 void NORETURN_FUNCPTR (*ndo_error)(netdissect_options *, 256 status_exit_codes_t status, 257 const char *fmt, ...) 258 PRINTFLIKE_FUNCPTR(3, 4); 259 /* pointer to function to output warnings */ 260 void (*ndo_warning)(netdissect_options *, 261 const char *fmt, ...) 262 PRINTFLIKE_FUNCPTR(2, 3); 263}; 264 265extern WARN_UNUSED_RESULT int nd_push_buffer(netdissect_options *, u_char *, const u_char *, const u_int); 266extern WARN_UNUSED_RESULT int nd_push_snaplen(netdissect_options *, const u_char *, const u_int); 267extern void nd_change_snaplen(netdissect_options *, const u_char *, const u_int); 268extern void nd_pop_packet_info(netdissect_options *); 269extern void nd_pop_all_packet_info(netdissect_options *); 270 271static inline NORETURN void 272nd_trunc_longjmp(netdissect_options *ndo) 273{ 274 longjmp(ndo->ndo_early_end, ND_TRUNCATED); 275#ifdef _AIX 276 /* 277 * In AIX <setjmp.h> decorates longjmp() with "#pragma leaves", which tells 278 * XL C that the function is noreturn, but GCC remains unaware of that and 279 * yields a "'noreturn' function does return" warning. 280 */ 281 ND_UNREACHABLE 282#endif /* _AIX */ 283} 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) if (!ND_TTEST_LEN(p, l)) nd_trunc_longjmp(ndo) 379#else 380#define ND_TCHECK_LEN(p, l) if (!ND_TTEST_LEN(p, l)) goto trunc 381#endif 382 383/* Bail out if "*(p)" was not captured */ 384#define ND_TCHECK_SIZE(p) ND_TCHECK_LEN(p, sizeof(*(p))) 385 386/* 387 * Number of bytes between two pointers. 388 */ 389#define ND_BYTES_BETWEEN(p1, p2) ((u_int)(((const uint8_t *)(p1)) - (const uint8_t *)(p2))) 390 391/* 392 * Number of bytes remaining in the captured data, starting at the 393 * byte pointed to by the argument. 394 */ 395#define ND_BYTES_AVAILABLE_AFTER(p) ND_BYTES_BETWEEN(ndo->ndo_snapend, (p)) 396 397/* Check length < minimum for invalid packet with a custom message, format %u */ 398#define ND_LCHECKMSG_U(length, minimum, what) \ 399if ((length) < (minimum)) { \ 400ND_PRINT(" [%s %u < %u]", (what), (length), (minimum)); \ 401goto invalid; \ 402} 403 404/* Check length < minimum for invalid packet with #length message, format %u */ 405#define ND_LCHECK_U(length, minimum) \ 406ND_LCHECKMSG_U((length), (minimum), (#length)) 407 408/* Check length < minimum for invalid packet with a custom message, format %zu */ 409#define ND_LCHECKMSG_ZU(length, minimum, what) \ 410if ((length) < (minimum)) { \ 411ND_PRINT(" [%s %u < %zu]", (what), (length), (minimum)); \ 412goto invalid; \ 413} 414 415/* Check length < minimum for invalid packet with #length message, format %zu */ 416#define ND_LCHECK_ZU(length, minimum) \ 417ND_LCHECKMSG_ZU((length), (minimum), (#length)) 418 419#define ND_PRINT(...) (ndo->ndo_printf)(ndo, __VA_ARGS__) 420#define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length) 421 422extern void ts_print(netdissect_options *, const struct timeval *); 423extern void signed_relts_print(netdissect_options *, int32_t); 424extern void unsigned_relts_print(netdissect_options *, uint32_t); 425 426extern const char *nd_format_time(char *buf, size_t bufsize, 427 const char *format, const struct tm *timeptr); 428 429extern void fn_print_char(netdissect_options *, u_char); 430extern void fn_print_str(netdissect_options *, const u_char *); 431extern u_int nd_printztn(netdissect_options *, const u_char *, u_int, const u_char *); 432extern int nd_printn(netdissect_options *, const u_char *, u_int, const u_char *); 433extern void nd_printjnp(netdissect_options *, const u_char *, u_int); 434 435/* 436 * Flags for txtproto_print(). 437 */ 438#define RESP_CODE_SECOND_TOKEN 0x00000001 /* response code is second token in response line */ 439 440extern void txtproto_print(netdissect_options *, const u_char *, u_int, 441 const char **, u_int); 442 443#if (defined(__i386__) || defined(_M_IX86) || defined(__X86__) || defined(__x86_64__) || defined(_M_X64)) || \ 444 (defined(__arm__) || defined(_M_ARM) || defined(__aarch64__)) || \ 445 (defined(__m68k__) && (!defined(__mc68000__) && !defined(__mc68010__))) || \ 446 (defined(__ppc__) || defined(__ppc64__) || defined(_M_PPC) || defined(_ARCH_PPC) || defined(_ARCH_PPC64)) || \ 447 (defined(__s390__) || defined(__s390x__) || defined(__zarch__)) || \ 448 defined(__vax__) 449/* 450 * The processor natively handles unaligned loads, so just use memcpy() 451 * and memcmp(), to enable those optimizations. 452 * 453 * XXX - are those all the x86 tests we need? 454 * XXX - do we need to worry about ARMv1 through ARMv5, which didn't 455 * support unaligned loads, and, if so, do we need to worry about all 456 * of them, or just some of them, e.g. ARMv5? 457 * XXX - are those the only 68k tests we need not to generated 458 * unaligned accesses if the target is the 68000 or 68010? 459 * XXX - are there any tests we don't need, because some definitions are for 460 * compilers that also predefine the GCC symbols? 461 * XXX - do we need to test for both 32-bit and 64-bit versions of those 462 * architectures in all cases? 463 */ 464#define UNALIGNED_MEMCPY(p, q, l) memcpy((p), (q), (l)) 465#define UNALIGNED_MEMCMP(p, q, l) memcmp((p), (q), (l)) 466#else 467/* 468 * The processor doesn't natively handle unaligned loads, 469 * and the compiler might "helpfully" optimize memcpy() 470 * and memcmp(), when handed pointers that would normally 471 * be properly aligned, into sequences that assume proper 472 * alignment. 473 * 474 * Do copies and compares of possibly-unaligned data by 475 * calling routines that wrap memcpy() and memcmp(), to 476 * prevent that optimization. 477 */ 478extern void unaligned_memcpy(void *, const void *, size_t); 479extern int unaligned_memcmp(const void *, const void *, size_t); 480#define UNALIGNED_MEMCPY(p, q, l) unaligned_memcpy((p), (q), (l)) 481#define UNALIGNED_MEMCMP(p, q, l) unaligned_memcmp((p), (q), (l)) 482#endif 483 484#define PLURAL_SUFFIX(n) \ 485 (((n) != 1) ? "s" : "") 486 487extern const char *tok2strary_internal(const char **, int, const char *, int); 488#define tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i) 489 490struct uint_tokary 491{ 492 u_int uintval; 493 const struct tok *tokary; 494}; 495 496extern const struct tok *uint2tokary_internal(const struct uint_tokary[], const size_t, const u_int); 497#define uint2tokary(a, i) uint2tokary_internal(a, sizeof(a)/sizeof(a[0]), i) 498 499extern if_printer lookup_printer(int); 500 501#define ND_DEBUG {printf(" [%s:%d %s] ", __FILE__, __LINE__, __func__); fflush(stdout);} 502 503/* The DLT printer routines */ 504 505extern void ap1394_if_print IF_PRINTER_ARGS; 506extern void arcnet_if_print IF_PRINTER_ARGS; 507extern void arcnet_linux_if_print IF_PRINTER_ARGS; 508extern void atm_if_print IF_PRINTER_ARGS; 509extern void brcm_tag_if_print IF_PRINTER_ARGS; 510extern void brcm_tag_prepend_if_print IF_PRINTER_ARGS; 511extern void bt_if_print IF_PRINTER_ARGS; 512extern void chdlc_if_print IF_PRINTER_ARGS; 513extern void cip_if_print IF_PRINTER_ARGS; 514extern void dsa_if_print IF_PRINTER_ARGS; 515extern void edsa_if_print IF_PRINTER_ARGS; 516extern void enc_if_print IF_PRINTER_ARGS; 517extern void ether_if_print IF_PRINTER_ARGS; 518extern void fddi_if_print IF_PRINTER_ARGS; 519extern void fr_if_print IF_PRINTER_ARGS; 520extern void ieee802_11_if_print IF_PRINTER_ARGS; 521extern void ieee802_11_radio_avs_if_print IF_PRINTER_ARGS; 522extern void ieee802_11_radio_if_print IF_PRINTER_ARGS; 523extern void ieee802_15_4_if_print IF_PRINTER_ARGS; 524extern void ieee802_15_4_tap_if_print IF_PRINTER_ARGS; 525extern void ipfc_if_print IF_PRINTER_ARGS; 526extern void ipnet_if_print IF_PRINTER_ARGS; 527extern void ipoib_if_print IF_PRINTER_ARGS; 528extern void juniper_atm1_if_print IF_PRINTER_ARGS; 529extern void juniper_atm2_if_print IF_PRINTER_ARGS; 530extern void juniper_chdlc_if_print IF_PRINTER_ARGS; 531extern void juniper_es_if_print IF_PRINTER_ARGS; 532extern void juniper_ether_if_print IF_PRINTER_ARGS; 533extern void juniper_frelay_if_print IF_PRINTER_ARGS; 534extern void juniper_ggsn_if_print IF_PRINTER_ARGS; 535extern void juniper_mfr_if_print IF_PRINTER_ARGS; 536extern void juniper_mlfr_if_print IF_PRINTER_ARGS; 537extern void juniper_mlppp_if_print IF_PRINTER_ARGS; 538extern void juniper_monitor_if_print IF_PRINTER_ARGS; 539extern void juniper_ppp_if_print IF_PRINTER_ARGS; 540extern void juniper_pppoe_atm_if_print IF_PRINTER_ARGS; 541extern void juniper_pppoe_if_print IF_PRINTER_ARGS; 542extern void juniper_services_if_print IF_PRINTER_ARGS; 543extern void ltalk_if_print IF_PRINTER_ARGS; 544extern void mfr_if_print IF_PRINTER_ARGS; 545extern void netanalyzer_if_print IF_PRINTER_ARGS; 546extern void netanalyzer_transparent_if_print IF_PRINTER_ARGS; 547extern void nflog_if_print IF_PRINTER_ARGS; 548extern void null_if_print IF_PRINTER_ARGS; 549extern void pflog_if_print IF_PRINTER_ARGS; 550extern void pktap_if_print IF_PRINTER_ARGS; 551extern void ppi_if_print IF_PRINTER_ARGS; 552extern void ppp_bsdos_if_print IF_PRINTER_ARGS; 553extern void ppp_hdlc_if_print IF_PRINTER_ARGS; 554extern void ppp_if_print IF_PRINTER_ARGS; 555extern void pppoe_if_print IF_PRINTER_ARGS; 556extern void prism_if_print IF_PRINTER_ARGS; 557extern void raw_if_print IF_PRINTER_ARGS; 558extern void sl_bsdos_if_print IF_PRINTER_ARGS; 559extern void sl_if_print IF_PRINTER_ARGS; 560extern void sll2_if_print IF_PRINTER_ARGS; 561extern void sll_if_print IF_PRINTER_ARGS; 562extern void sunatm_if_print IF_PRINTER_ARGS; 563extern void symantec_if_print IF_PRINTER_ARGS; 564extern void token_if_print IF_PRINTER_ARGS; 565extern void unsupported_if_print IF_PRINTER_ARGS; 566extern void usb_linux_48_byte_if_print IF_PRINTER_ARGS; 567extern void usb_linux_64_byte_if_print IF_PRINTER_ARGS; 568extern void vsock_if_print IF_PRINTER_ARGS; 569 570/* 571 * Structure passed to some printers to allow them to print 572 * link-layer address information if ndo_eflag isn't set 573 * (because they are for protocols that don't have their 574 * own addresses, so that we'd want to report link-layer 575 * address information). 576 * 577 * This contains a pointer to an address and a pointer to a routine 578 * to which we pass that pointer in order to get a string. 579 */ 580struct lladdr_info { 581 const char *(*addr_string)(netdissect_options *, const u_char *); 582 const u_char *addr; 583}; 584 585/* The printer routines. */ 586 587extern void aarp_print(netdissect_options *, const u_char *, u_int); 588extern int ah_print(netdissect_options *, const u_char *); 589extern void ahcp_print(netdissect_options *, const u_char *, u_int); 590extern void aodv_print(netdissect_options *, const u_char *, u_int, int); 591extern void aoe_print(netdissect_options *, const u_char *, const u_int); 592extern int arista_ethertype_print(netdissect_options *,const u_char *, u_int); 593extern void arp_print(netdissect_options *, const u_char *, u_int, u_int); 594extern void ascii_print(netdissect_options *, const u_char *, u_int); 595extern void atalk_print(netdissect_options *, const u_char *, u_int); 596extern void atm_print(netdissect_options *, u_int, u_int, u_int, const u_char *, u_int, u_int); 597extern void babel_print(netdissect_options *, const u_char *, u_int); 598extern void bcm_li_print(netdissect_options *, const u_char *, u_int); 599extern void beep_print(netdissect_options *, const u_char *, u_int); 600extern void bfd_print(netdissect_options *, const u_char *, u_int, u_int); 601extern void bgp_print(netdissect_options *, const u_char *, u_int); 602extern const char *bgp_vpn_rd_print(netdissect_options *, const u_char *); 603extern void bootp_print(netdissect_options *, const u_char *, u_int); 604extern void calm_fast_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *); 605extern void carp_print(netdissect_options *, const u_char *, u_int, u_int); 606extern void cdp_print(netdissect_options *, const u_char *, u_int); 607extern void cfm_print(netdissect_options *, const u_char *, u_int); 608extern u_int chdlc_print(netdissect_options *, const u_char *, u_int); 609extern void cisco_autorp_print(netdissect_options *, const u_char *, u_int); 610extern void cnfp_print(netdissect_options *, const u_char *); 611extern void dccp_print(netdissect_options *, const u_char *, const u_char *, u_int); 612extern void decnet_print(netdissect_options *, const u_char *, u_int, u_int); 613extern void dhcp6_print(netdissect_options *, const u_char *, u_int); 614extern int dstopt_process(netdissect_options *, const u_char *); 615extern void dtp_print(netdissect_options *, const u_char *, u_int); 616extern void dvmrp_print(netdissect_options *, const u_char *, u_int); 617extern void eap_print(netdissect_options *, const u_char *, u_int); 618extern void eapol_print(netdissect_options *, const u_char *); 619extern void egp_print(netdissect_options *, const u_char *, u_int); 620extern void eigrp_print(netdissect_options *, const u_char *, u_int); 621extern void esp_print(netdissect_options *, const u_char *, u_int, const u_char *, u_int, int, u_int); 622extern u_int ether_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), const u_char *); 623extern u_int ether_switch_tag_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), u_int); 624extern int ethertype_print(netdissect_options *, u_short, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *); 625extern u_int fddi_print(netdissect_options *, const u_char *, u_int, u_int); 626extern void forces_print(netdissect_options *, const u_char *, u_int); 627extern u_int fr_print(netdissect_options *, const u_char *, u_int); 628extern int frag6_print(netdissect_options *, const u_char *, const u_char *); 629extern void ftp_print(netdissect_options *, const u_char *, u_int); 630extern void geneve_print(netdissect_options *, const u_char *, u_int); 631extern void geonet_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *); 632extern void gre_print(netdissect_options *, const u_char *, u_int); 633extern int hbhopt_process(netdissect_options *, const u_char *, int *, uint32_t *); 634extern void hex_and_ascii_print(netdissect_options *, const char *, const u_char *, u_int); 635extern void hex_print(netdissect_options *, const char *ident, const u_char *cp, u_int); 636extern void hex_print_with_offset(netdissect_options *, const char *ident, const u_char *cp, u_int, u_int); 637extern void hncp_print(netdissect_options *, const u_char *, u_int); 638extern void hsrp_print(netdissect_options *, const u_char *, u_int); 639extern void http_print(netdissect_options *, const u_char *, u_int); 640extern void icmp6_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 641extern void icmp_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 642extern u_int ieee802_15_4_print(netdissect_options *, const u_char *, u_int); 643extern u_int ieee802_11_radio_print(netdissect_options *, const u_char *, u_int, u_int); 644extern void igmp_print(netdissect_options *, const u_char *, u_int); 645extern void igrp_print(netdissect_options *, const u_char *, u_int); 646extern void ip6_print(netdissect_options *, const u_char *, u_int); 647extern void ipN_print(netdissect_options *, const u_char *, u_int); 648extern void ip_print(netdissect_options *, const u_char *, u_int); 649extern void ipcomp_print(netdissect_options *, const u_char *); 650extern void ipx_netbios_print(netdissect_options *, const u_char *, u_int); 651extern void ipx_print(netdissect_options *, const u_char *, u_int); 652extern void isakmp_print(netdissect_options *, const u_char *, u_int, const u_char *); 653extern void isakmp_rfc3948_print(netdissect_options *, const u_char *, u_int, const u_char *, int, int, u_int); 654extern void isoclns_print(netdissect_options *, const u_char *, u_int); 655extern void krb_print(netdissect_options *, const u_char *); 656extern void l2tp_print(netdissect_options *, const u_char *, u_int); 657extern void lane_print(netdissect_options *, const u_char *, u_int, u_int); 658extern void ldp_print(netdissect_options *, const u_char *, u_int); 659extern void lisp_print(netdissect_options *, const u_char *, u_int); 660extern u_int llap_print(netdissect_options *, const u_char *, u_int); 661extern int llc_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *); 662extern void lldp_print(netdissect_options *, const u_char *, u_int); 663extern void lmp_print(netdissect_options *, const u_char *, u_int); 664extern void loopback_print(netdissect_options *, const u_char *, u_int); 665extern void lspping_print(netdissect_options *, const u_char *, u_int); 666extern void lwapp_control_print(netdissect_options *, const u_char *, u_int, int); 667extern void lwapp_data_print(netdissect_options *, const u_char *, u_int); 668extern void lwres_print(netdissect_options *, const u_char *, u_int); 669extern void m3ua_print(netdissect_options *, const u_char *, const u_int); 670extern int macsec_print(netdissect_options *, const u_char **, 671 u_int *, u_int *, u_int *, const struct lladdr_info *, 672 const struct lladdr_info *); 673extern u_int mfr_print(netdissect_options *, const u_char *, u_int); 674extern void mobile_print(netdissect_options *, const u_char *, u_int); 675extern int mobility_print(netdissect_options *, const u_char *, const u_char *); 676extern void mpcp_print(netdissect_options *, const u_char *, u_int); 677extern void mpls_print(netdissect_options *, const u_char *, u_int); 678extern int mptcp_print(netdissect_options *, const u_char *, u_int, u_char); 679extern void msdp_print(netdissect_options *, const u_char *, u_int); 680extern void msnlb_print(netdissect_options *, const u_char *); 681extern void nbt_tcp_print(netdissect_options *, const u_char *, u_int); 682extern void nbt_udp137_print(netdissect_options *, const u_char *, u_int); 683extern void nbt_udp138_print(netdissect_options *, const u_char *, u_int); 684extern void netbeui_print(netdissect_options *, u_short, const u_char *, u_int); 685extern void nfsreply_print(netdissect_options *, const u_char *, u_int, const u_char *); 686extern void nfsreply_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *); 687extern void nfsreq_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *); 688extern const u_char *fqdn_print(netdissect_options *, const u_char *, const u_char *); 689extern void domain_print(netdissect_options *, const u_char *, u_int, int, int); 690extern void nsh_print(netdissect_options *, const u_char *, u_int); 691extern void ntp_print(netdissect_options *, const u_char *, u_int); 692extern void oam_print(netdissect_options *, const u_char *, u_int, u_int); 693extern void olsr_print(netdissect_options *, const u_char *, u_int, int); 694extern void openflow_print(netdissect_options *, const u_char *, u_int); 695extern void ospf6_print(netdissect_options *, const u_char *, u_int); 696extern void ospf_print(netdissect_options *, const u_char *, u_int, const u_char *); 697extern int ospf_grace_lsa_print(netdissect_options *, const u_char *, u_int); 698extern int ospf_te_lsa_print(netdissect_options *, const u_char *, u_int); 699extern void otv_print(netdissect_options *, const u_char *, u_int); 700extern void pfsync_ip_print(netdissect_options *, const u_char *, u_int); 701extern void pfsync_if_print(netdissect_options *, const struct pcap_pkthdr *, const u_char *); 702extern void pgm_print(netdissect_options *, const u_char *, u_int, const u_char *); 703extern void pim_print(netdissect_options *, const u_char *, u_int, const u_char *); 704extern void pimv1_print(netdissect_options *, const u_char *, u_int); 705extern u_int ppp_print(netdissect_options *, const u_char *, u_int); 706extern u_int pppoe_print(netdissect_options *, const u_char *, u_int); 707extern void pptp_print(netdissect_options *, const u_char *); 708extern void ptp_print(netdissect_options *, const u_char *, u_int); 709extern int print_unknown_data(netdissect_options *, const u_char *, const char *, u_int); 710extern const char *q922_string(netdissect_options *, const u_char *, u_int); 711extern void q933_print(netdissect_options *, const u_char *, u_int); 712extern void radius_print(netdissect_options *, const u_char *, u_int); 713extern void resp_print(netdissect_options *, const u_char *, u_int); 714extern void rip_print(netdissect_options *, const u_char *, u_int); 715extern void ripng_print(netdissect_options *, const u_char *, unsigned int); 716extern void rpki_rtr_print(netdissect_options *, const u_char *, u_int); 717extern void rsvp_print(netdissect_options *, const u_char *, u_int); 718extern int rt6_print(netdissect_options *, const u_char *, const u_char *); 719extern void rtl_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *, const struct lladdr_info *); 720extern void rtsp_print(netdissect_options *, const u_char *, u_int); 721extern void rx_print(netdissect_options *, const u_char *, u_int, uint16_t, uint16_t, const u_char *); 722extern void sctp_print(netdissect_options *, const u_char *, const u_char *, u_int); 723extern void sflow_print(netdissect_options *, const u_char *, u_int); 724extern void ssh_print(netdissect_options *, const u_char *, u_int); 725extern void sip_print(netdissect_options *, const u_char *, u_int); 726extern void slow_print(netdissect_options *, const u_char *, u_int); 727extern void smb_tcp_print(netdissect_options *, const u_char *, u_int); 728extern void smtp_print(netdissect_options *, const u_char *, u_int); 729extern int snap_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *, u_int); 730extern void snmp_print(netdissect_options *, const u_char *, u_int); 731extern void stp_print(netdissect_options *, const u_char *, u_int); 732extern void sunrpc_print(netdissect_options *, const u_char *, u_int, const u_char *); 733extern void syslog_print(netdissect_options *, const u_char *, u_int); 734extern void tcp_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 735extern void telnet_print(netdissect_options *, const u_char *, u_int); 736extern void tftp_print(netdissect_options *, const u_char *, u_int); 737extern void timed_print(netdissect_options *, const u_char *); 738extern void tipc_print(netdissect_options *, const u_char *, u_int, u_int); 739extern u_int token_print(netdissect_options *, const u_char *, u_int, u_int); 740extern void udld_print(netdissect_options *, const u_char *, u_int); 741extern void udp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, u_int); 742extern int vjc_print(netdissect_options *, const u_char *, u_short); 743extern void vqp_print(netdissect_options *, const u_char *, u_int); 744extern void vrrp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, int); 745extern void vtp_print(netdissect_options *, const u_char *, const u_int); 746extern void vxlan_gpe_print(netdissect_options *, const u_char *, u_int); 747extern void vxlan_print(netdissect_options *, const u_char *, u_int); 748extern void wb_print(netdissect_options *, const u_char *, u_int); 749extern void whois_print(netdissect_options *, const u_char *, u_int); 750extern void zep_print(netdissect_options *, const u_char *, u_int); 751extern void zephyr_print(netdissect_options *, const u_char *, u_int); 752extern void zmtp1_print(netdissect_options *, const u_char *, u_int); 753extern void zmtp1_datagram_print(netdissect_options *, const u_char *, const u_int); 754extern void someip_print(netdissect_options *, const u_char *, const u_int); 755 756/* checksum routines */ 757extern void init_checksum(void); 758extern uint16_t verify_crc10_cksum(uint16_t, const u_char *, int); 759extern uint16_t create_osi_cksum(const uint8_t *, int, int); 760 761struct cksum_vec { 762 const uint8_t *ptr; 763 int len; 764}; 765extern uint16_t in_cksum(const struct cksum_vec *, int); 766extern uint16_t in_cksum_shouldbe(uint16_t, uint16_t); 767 768/* IP protocol demuxing routines */ 769extern void ip_demux_print(netdissect_options *, const u_char *, u_int, u_int, int, u_int, uint8_t, const u_char *); 770 771extern uint16_t nextproto4_cksum(netdissect_options *, const struct ip *, const uint8_t *, u_int, u_int, uint8_t); 772 773/* in print-ip6.c */ 774extern uint16_t nextproto6_cksum(netdissect_options *, const struct ip6_hdr *, const uint8_t *, u_int, u_int, uint8_t); 775 776/* Utilities */ 777extern void nd_print_trunc(netdissect_options *); 778extern void nd_print_protocol(netdissect_options *); 779extern void nd_print_protocol_caps(netdissect_options *); 780extern void nd_print_invalid(netdissect_options *); 781 782extern int mask2plen(uint32_t); 783extern int mask62plen(const u_char *); 784 785extern const char *dnnum_string(netdissect_options *, u_short); 786 787extern int decode_prefix4(netdissect_options *, const u_char *, u_int, char *, size_t); 788extern int decode_prefix6(netdissect_options *, const u_char *, u_int, char *, size_t); 789 790extern void esp_decodesecret_print(netdissect_options *); 791extern int esp_decrypt_buffer_by_ikev2_print(netdissect_options *, int, 792 const u_char spii[8], 793 const u_char spir[8], 794 const u_char *, const u_char *); 795 796#endif /* netdissect_h */ 797