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 35 /* 36 * Data types corresponding to multi-byte integral values within data 37 * structures. These are defined as arrays of octets, so that they're 38 * not aligned on their "natural" boundaries, and so that you *must* 39 * use the EXTRACT_ macros to extract them (which you should be doing 40 * *anyway*, so as not to assume a particular byte order or alignment 41 * in your code). 42 * 43 * We even want EXTRACT_U_1 used for 8-bit integral values, so we 44 * define nd_uint8_t and nd_int8_t as arrays as well. 45 */ 46 typedef unsigned char nd_uint8_t[1]; 47 typedef unsigned char nd_uint16_t[2]; 48 typedef unsigned char nd_uint24_t[3]; 49 typedef unsigned char nd_uint32_t[4]; 50 typedef unsigned char nd_uint40_t[5]; 51 typedef unsigned char nd_uint48_t[6]; 52 typedef unsigned char nd_uint56_t[7]; 53 typedef unsigned char nd_uint64_t[8]; 54 55 typedef signed char nd_int8_t[1]; 56 57 /* 58 * "unsigned char" so that sign extension isn't done on the 59 * individual bytes while they're being assembled. 60 */ 61 typedef unsigned char nd_int32_t[4]; 62 typedef unsigned char nd_int64_t[8]; 63 64 #define FMAXINT (4294967296.0) /* floating point rep. of MAXINT */ 65 66 /* 67 * Use this for IPv4 addresses and netmasks. 68 * 69 * It's defined as an array of octets, so that it's not guaranteed to 70 * be aligned on its "natural" boundary (in some packet formats, it 71 * *isn't* so aligned). We have separate EXTRACT_ calls for them; 72 * sometimes you want the host-byte-order value, other times you want 73 * the network-byte-order value. 74 * 75 * Don't use EXTRACT_BE_U_4() on them, use EXTRACT_IPV4_TO_HOST_ORDER() 76 * if you want them in host byte order and EXTRACT_IPV4_TO_NETWORK_ORDER() 77 * if you want them in network byte order (which you want with system APIs 78 * that expect network-order IPv4 addresses, such as inet_ntop()). 79 * 80 * If, on your little-endian machine (e.g., an "IBM-compatible PC", no matter 81 * what the OS, or an Intel Mac, no matter what the OS), you get the wrong 82 * answer, and you've used EXTRACT_BE_U_4(), do *N*O*T* "fix" this by using 83 * EXTRACT_LE_U_4(), fix it by using EXTRACT_IPV4_TO_NETWORK_ORDER(), 84 * otherwise you're breaking the result on big-endian machines (e.g., 85 * most PowerPC/Power ISA machines, System/390 and z/Architecture, SPARC, 86 * etc.). 87 * 88 * Yes, people do this; that's why Wireshark has tvb_get_ipv4(), to extract 89 * an IPv4 address from a packet data buffer; it was introduced in reaction 90 * to somebody who *had* done that. 91 */ 92 typedef unsigned char nd_ipv4[4]; 93 94 /* 95 * Use this for IPv6 addresses and netmasks. 96 */ 97 typedef unsigned char nd_ipv6[16]; 98 99 /* 100 * Use this for MAC addresses. 101 */ 102 #define MAC_ADDR_LEN 6U /* length of MAC addresses */ 103 typedef unsigned char nd_mac_addr[MAC_ADDR_LEN]; 104 105 /* 106 * Use this for blobs of bytes; make them arrays of nd_byte. 107 */ 108 typedef unsigned char nd_byte; 109 110 /* 111 * Round up x to a multiple of y; y must be a power of 2. 112 */ 113 #ifndef roundup2 114 #define roundup2(x, y) (((x)+((u_int)((y)-1)))&(~((u_int)((y)-1)))) 115 #endif 116 117 #include <stdarg.h> 118 #include <pcap.h> 119 120 #include "ip.h" /* struct ip for nextproto4_cksum() */ 121 #include "ip6.h" /* struct ip6 for nextproto6_cksum() */ 122 123 #ifndef HAVE_STRLCAT 124 extern size_t strlcat (char *, const char *, size_t); 125 #endif 126 #ifndef HAVE_STRLCPY 127 extern size_t strlcpy (char *, const char *, size_t); 128 #endif 129 130 #ifndef HAVE_STRDUP 131 extern char *strdup (const char *str); 132 #endif 133 134 #ifndef HAVE_STRSEP 135 extern char *strsep(char **, const char *); 136 #endif 137 138 struct tok { 139 u_int v; /* value */ 140 const char *s; /* string */ 141 }; 142 143 extern const char *tok2strbuf(const struct tok *, const char *, u_int, 144 char *buf, size_t bufsize); 145 146 /* tok2str is deprecated */ 147 extern const char *tok2str(const struct tok *, const char *, u_int); 148 extern char *bittok2str(const struct tok *, const char *, u_int); 149 extern char *bittok2str_nosep(const struct tok *, const char *, u_int); 150 151 /* Initialize netdissect. */ 152 extern int nd_init(char *, size_t); 153 /* Clean up netdissect. */ 154 extern void nd_cleanup(void); 155 156 /* Do we have libsmi support? */ 157 extern int nd_have_smi_support(void); 158 /* Load an SMI module. */ 159 extern int nd_load_smi_module(const char *, char *, size_t); 160 /* Flag indicating whether an SMI module has been loaded. */ 161 extern int nd_smi_module_loaded; 162 /* Version number of the SMI library, or NULL if we don't have libsmi support. */ 163 extern const char *nd_smi_version_string(void); 164 165 typedef struct netdissect_options netdissect_options; 166 167 #define IF_PRINTER_ARGS (netdissect_options *, const struct pcap_pkthdr *, const u_char *) 168 169 typedef void (*if_printer) IF_PRINTER_ARGS; 170 171 /* 172 * In case the data in a buffer needs to be processed by being decrypted, 173 * decompressed, etc. before it's dissected, we can't process it in place, 174 * we have to allocate a new buffer for the processed data. 175 * 176 * We keep a stack of those buffers; when we allocate a new buffer, we 177 * push the current one onto a stack, and when we're done with the new 178 * buffer, we free the current buffer and pop the previous one off the 179 * stack. 180 * 181 * A buffer has a beginnning and end pointer, and a link to the previous 182 * buffer on the stack. 183 * 184 * In other cases, we temporarily adjust the snapshot end to reflect a 185 * packet-length field in the packet data and, when finished dissecting 186 * that part of the packet, restore the old snapshot end. We keep that 187 * on the stack with null buffer pointer, meaning there's nothing to 188 * free. 189 */ 190 struct netdissect_saved_packet_info { 191 u_char *ndspi_buffer; /* pointer to allocated buffer data */ 192 const u_char *ndspi_packetp; /* saved beginning of data */ 193 const u_char *ndspi_snapend; /* saved end of data */ 194 struct netdissect_saved_packet_info *ndspi_prev; /* previous buffer on the stack */ 195 }; 196 197 /* 'val' value(s) for longjmp */ 198 #define ND_TRUNCATED 1 199 200 struct netdissect_options { 201 int ndo_bflag; /* print 4 byte ASes in ASDOT notation */ 202 int ndo_eflag; /* print ethernet header */ 203 int ndo_fflag; /* don't translate "foreign" IP address */ 204 int ndo_Kflag; /* don't check IP, TCP or UDP checksums */ 205 int ndo_nflag; /* leave addresses as numbers */ 206 int ndo_Nflag; /* remove domains from printed host names */ 207 int ndo_qflag; /* quick (shorter) output */ 208 int ndo_Sflag; /* print raw TCP sequence numbers */ 209 int ndo_tflag; /* print packet arrival time */ 210 int ndo_uflag; /* Print undecoded NFS handles */ 211 int ndo_vflag; /* verbosity level */ 212 int ndo_xflag; /* print packet in hex */ 213 int ndo_Xflag; /* print packet in hex/ASCII */ 214 int ndo_Aflag; /* print packet only in ASCII observing TAB, 215 * LF, CR and SPACE as graphical chars 216 */ 217 int ndo_Hflag; /* dissect 802.11s draft mesh standard */ 218 const char *ndo_protocol; /* protocol */ 219 jmp_buf ndo_early_end; /* jmp_buf for setjmp()/longjmp() */ 220 void *ndo_last_mem_p; /* pointer to the last allocated memory chunk */ 221 int ndo_packet_number; /* print a packet number in the beginning of line */ 222 int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */ 223 int ndo_tstamp_precision; /* requested time stamp precision */ 224 const char *program_name; /* Name of the program using the library */ 225 226 char *ndo_espsecret; 227 struct sa_list *ndo_sa_list_head; /* used by print-esp.c */ 228 struct sa_list *ndo_sa_default; 229 230 char *ndo_sigsecret; /* Signature verification secret key */ 231 232 int ndo_packettype; /* as specified by -T */ 233 234 int ndo_snaplen; 235 int ndo_ll_hdr_len; /* link-layer header length */ 236 237 /*global pointers to beginning and end of current packet (during printing) */ 238 const u_char *ndo_packetp; 239 const u_char *ndo_snapend; 240 241 /* stack of saved packet boundary and buffer information */ 242 struct netdissect_saved_packet_info *ndo_packet_info_stack; 243 244 /* pointer to the if_printer function */ 245 if_printer ndo_if_printer; 246 247 /* pointer to void function to output stuff */ 248 void (*ndo_default_print)(netdissect_options *, 249 const u_char *bp, u_int length); 250 251 /* pointer to function to do regular output */ 252 int (*ndo_printf)(netdissect_options *, 253 const char *fmt, ...) 254 PRINTFLIKE_FUNCPTR(2, 3); 255 /* pointer to function to output errors */ 256 void NORETURN_FUNCPTR (*ndo_error)(netdissect_options *, 257 status_exit_codes_t status, 258 const char *fmt, ...) 259 PRINTFLIKE_FUNCPTR(3, 4); 260 /* pointer to function to output warnings */ 261 void (*ndo_warning)(netdissect_options *, 262 const char *fmt, ...) 263 PRINTFLIKE_FUNCPTR(2, 3); 264 }; 265 266 extern int nd_push_buffer(netdissect_options *, u_char *, const u_char *, 267 const u_char *); 268 extern int nd_push_snapend(netdissect_options *, const u_char *); 269 extern void nd_change_snapend(netdissect_options *, const u_char *); 270 extern void nd_pop_packet_info(netdissect_options *); 271 extern void nd_pop_all_packet_info(netdissect_options *); 272 273 #define PT_VAT 1 /* Visual Audio Tool */ 274 #define PT_WB 2 /* distributed White Board */ 275 #define PT_RPC 3 /* Remote Procedure Call */ 276 #define PT_RTP 4 /* Real-Time Applications protocol */ 277 #define PT_RTCP 5 /* Real-Time Applications control protocol */ 278 #define PT_SNMP 6 /* Simple Network Management Protocol */ 279 #define PT_CNFP 7 /* Cisco NetFlow protocol */ 280 #define PT_TFTP 8 /* trivial file transfer protocol */ 281 #define PT_AODV 9 /* Ad-hoc On-demand Distance Vector Protocol */ 282 #define PT_CARP 10 /* Common Address Redundancy Protocol */ 283 #define PT_RADIUS 11 /* RADIUS authentication Protocol */ 284 #define PT_ZMTP1 12 /* ZeroMQ Message Transport Protocol 1.0 */ 285 #define PT_VXLAN 13 /* Virtual eXtensible Local Area Network */ 286 #define PT_PGM 14 /* [UDP-encapsulated] Pragmatic General Multicast */ 287 #define PT_PGM_ZMTP1 15 /* ZMTP/1.0 inside PGM (native or UDP-encapsulated) */ 288 #define PT_LMP 16 /* Link Management Protocol */ 289 #define PT_RESP 17 /* RESP */ 290 #define PT_PTP 18 /* PTP */ 291 #define PT_SOMEIP 19 /* Autosar SOME/IP Protocol */ 292 #define PT_DOMAIN 20 /* Domain Name System (DNS) */ 293 294 #define ND_MIN(a,b) ((a)>(b)?(b):(a)) 295 #define ND_MAX(a,b) ((b)>(a)?(b):(a)) 296 297 /* For source or destination ports tests (UDP, TCP, ...) */ 298 #define IS_SRC_OR_DST_PORT(p) (sport == (p) || dport == (p)) 299 300 /* 301 * Maximum snapshot length. This should be enough to capture the full 302 * packet on most network interfaces. 303 * 304 * 305 * Somewhat arbitrary, but chosen to be: 306 * 307 * 1) big enough for maximum-size Linux loopback packets (65549) 308 * and some USB packets captured with USBPcap: 309 * 310 * https://desowin.org/usbpcap/ 311 * 312 * (> 131072, < 262144) 313 * 314 * and 315 * 316 * 2) small enough not to cause attempts to allocate huge amounts of 317 * memory; some applications might use the snapshot length in a 318 * savefile header to control the size of the buffer they allocate, 319 * so a size of, say, 2^31-1 might not work well. 320 * 321 * XXX - does it need to be bigger still? Note that, for versions of 322 * libpcap with pcap_create()/pcap_activate(), if no -s flag is specified 323 * or -s 0 is specified, we won't set the snapshot length at all, and will 324 * let libpcap choose a snapshot length; newer versions may choose a bigger 325 * value than 262144 for D-Bus, for example. 326 */ 327 #define MAXIMUM_SNAPLEN 262144 328 329 /* 330 * True if "l" bytes from "p" were captured. 331 * 332 * The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure 333 * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows. 334 * 335 * The check is for <= rather than < because "l" might be 0. 336 * 337 * We cast the pointers to uintptr_t to make sure that the compiler 338 * doesn't optimize away any of these tests (which it is allowed to 339 * do, as adding an integer to, or subtracting an integer from, a 340 * pointer assumes that the pointer is a pointer to an element of an 341 * array and that the result of the addition or subtraction yields a 342 * pointer to another member of the array, so that, for example, if 343 * you subtract a positive integer from a pointer, the result is 344 * guaranteed to be less than the original pointer value). See 345 * 346 * https://www.kb.cert.org/vuls/id/162289 347 */ 348 349 /* 350 * Test in two parts to avoid these warnings: 351 * comparison of unsigned expression >= 0 is always true [-Wtype-limits], 352 * comparison is always true due to limited range of data type [-Wtype-limits]. 353 */ 354 #define IS_NOT_NEGATIVE(x) (((x) > 0) || ((x) == 0)) 355 356 #define ND_TTEST_LEN(p, l) \ 357 (IS_NOT_NEGATIVE(l) && \ 358 ((uintptr_t)ndo->ndo_snapend - (l) <= (uintptr_t)ndo->ndo_snapend && \ 359 (uintptr_t)(p) <= (uintptr_t)ndo->ndo_snapend - (l))) 360 361 /* True if "*(p)" was captured */ 362 #define ND_TTEST_SIZE(p) ND_TTEST_LEN(p, sizeof(*(p))) 363 364 /* Bail out if "l" bytes from "p" were not captured */ 365 #ifdef ND_LONGJMP_FROM_TCHECK 366 #define ND_TCHECK_LEN(p, l) if (!ND_TTEST_LEN(p, l)) nd_trunc_longjmp(ndo) 367 #else 368 #define ND_TCHECK_LEN(p, l) if (!ND_TTEST_LEN(p, l)) goto trunc 369 #endif 370 371 /* Bail out if "*(p)" was not captured */ 372 #define ND_TCHECK_SIZE(p) ND_TCHECK_LEN(p, sizeof(*(p))) 373 374 /* 375 * Number of bytes between two pointers. 376 */ 377 #define ND_BYTES_BETWEEN(p1, p2) ((u_int)(((const uint8_t *)(p1)) - (const uint8_t *)(p2))) 378 379 /* 380 * Number of bytes remaining in the captured data, starting at the 381 * byte pointed to by the argument. 382 */ 383 #define ND_BYTES_AVAILABLE_AFTER(p) ND_BYTES_BETWEEN(ndo->ndo_snapend, (p)) 384 385 #define ND_PRINT(...) (ndo->ndo_printf)(ndo, __VA_ARGS__) 386 #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length) 387 388 extern void ts_print(netdissect_options *, const struct timeval *); 389 extern void signed_relts_print(netdissect_options *, int32_t); 390 extern void unsigned_relts_print(netdissect_options *, uint32_t); 391 392 extern void fn_print_char(netdissect_options *, u_char); 393 extern void fn_print_str(netdissect_options *, const u_char *); 394 extern u_int nd_printztn(netdissect_options *, const u_char *, u_int, const u_char *); 395 extern int nd_printn(netdissect_options *, const u_char *, u_int, const u_char *); 396 extern void nd_printjnp(netdissect_options *, const u_char *, u_int); 397 398 /* 399 * Flags for txtproto_print(). 400 */ 401 #define RESP_CODE_SECOND_TOKEN 0x00000001 /* response code is second token in response line */ 402 403 extern void txtproto_print(netdissect_options *, const u_char *, u_int, 404 const char **, u_int); 405 406 #if (defined(__i386__) || defined(_M_IX86) || defined(__X86__) || defined(__x86_64__) || defined(_M_X64)) || \ 407 (defined(__arm__) || defined(_M_ARM) || defined(__aarch64__)) || \ 408 (defined(__m68k__) && (!defined(__mc68000__) && !defined(__mc68010__))) || \ 409 (defined(__ppc__) || defined(__ppc64__) || defined(_M_PPC) || defined(_ARCH_PPC) || defined(_ARCH_PPC64)) || \ 410 (defined(__s390__) || defined(__s390x__) || defined(__zarch__)) || \ 411 defined(__vax__) 412 /* 413 * The procesor natively handles unaligned loads, so just use memcpy() 414 * and memcmp(), to enable those optimizations. 415 * 416 * XXX - are those all the x86 tests we need? 417 * XXX - do we need to worry about ARMv1 through ARMv5, which didn't 418 * support unaligned loads, and, if so, do we need to worry about all 419 * of them, or just some of them, e.g. ARMv5? 420 * XXX - are those the only 68k tests we need not to generated 421 * unaligned accesses if the target is the 68000 or 68010? 422 * XXX - are there any tests we don't need, because some definitions are for 423 * compilers that also predefine the GCC symbols? 424 * XXX - do we need to test for both 32-bit and 64-bit versions of those 425 * architectures in all cases? 426 */ 427 #define UNALIGNED_MEMCPY(p, q, l) memcpy((p), (q), (l)) 428 #define UNALIGNED_MEMCMP(p, q, l) memcmp((p), (q), (l)) 429 #else 430 /* 431 * The processor doesn't natively handle unaligned loads, 432 * and the compiler might "helpfully" optimize memcpy() 433 * and memcmp(), when handed pointers that would normally 434 * be properly aligned, into sequences that assume proper 435 * alignment. 436 * 437 * Do copies and compares of possibly-unaligned data by 438 * calling routines that wrap memcpy() and memcmp(), to 439 * prevent that optimization. 440 */ 441 extern void unaligned_memcpy(void *, const void *, size_t); 442 extern int unaligned_memcmp(const void *, const void *, size_t); 443 #define UNALIGNED_MEMCPY(p, q, l) unaligned_memcpy((p), (q), (l)) 444 #define UNALIGNED_MEMCMP(p, q, l) unaligned_memcmp((p), (q), (l)) 445 #endif 446 447 #define PLURAL_SUFFIX(n) \ 448 (((n) != 1) ? "s" : "") 449 450 extern const char *tok2strary_internal(const char **, int, const char *, int); 451 #define tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i) 452 453 struct uint_tokary 454 { 455 u_int uintval; 456 const struct tok *tokary; 457 }; 458 459 extern const struct tok *uint2tokary_internal(const struct uint_tokary[], const size_t, const u_int); 460 #define uint2tokary(a, i) uint2tokary_internal(a, sizeof(a)/sizeof(a[0]), i) 461 462 extern if_printer lookup_printer(int); 463 464 #define ND_DEBUG {printf(" [%s:%d %s] ", __FILE__, __LINE__, __func__); fflush(stdout);} 465 466 /* The DLT printer routines */ 467 468 extern void ap1394_if_print IF_PRINTER_ARGS; 469 extern void arcnet_if_print IF_PRINTER_ARGS; 470 extern void arcnet_linux_if_print IF_PRINTER_ARGS; 471 extern void atm_if_print IF_PRINTER_ARGS; 472 extern void bt_if_print IF_PRINTER_ARGS; 473 extern void brcm_tag_if_print IF_PRINTER_ARGS; 474 extern void brcm_tag_prepend_if_print IF_PRINTER_ARGS; 475 extern void chdlc_if_print IF_PRINTER_ARGS; 476 extern void cip_if_print IF_PRINTER_ARGS; 477 extern void dsa_if_print IF_PRINTER_ARGS; 478 extern void edsa_if_print IF_PRINTER_ARGS; 479 extern void enc_if_print IF_PRINTER_ARGS; 480 extern void ether_if_print IF_PRINTER_ARGS; 481 extern void fddi_if_print IF_PRINTER_ARGS; 482 extern void fr_if_print IF_PRINTER_ARGS; 483 extern void ieee802_11_if_print IF_PRINTER_ARGS; 484 extern void ieee802_11_radio_avs_if_print IF_PRINTER_ARGS; 485 extern void ieee802_11_radio_if_print IF_PRINTER_ARGS; 486 extern void ieee802_15_4_if_print IF_PRINTER_ARGS; 487 extern void ieee802_15_4_tap_if_print IF_PRINTER_ARGS; 488 extern void ipfc_if_print IF_PRINTER_ARGS; 489 extern void ipoib_if_print IF_PRINTER_ARGS; 490 extern void ipnet_if_print IF_PRINTER_ARGS; 491 extern void juniper_atm1_if_print IF_PRINTER_ARGS; 492 extern void juniper_atm2_if_print IF_PRINTER_ARGS; 493 extern void juniper_chdlc_if_print IF_PRINTER_ARGS; 494 extern void juniper_es_if_print IF_PRINTER_ARGS; 495 extern void juniper_ether_if_print IF_PRINTER_ARGS; 496 extern void juniper_frelay_if_print IF_PRINTER_ARGS; 497 extern void juniper_ggsn_if_print IF_PRINTER_ARGS; 498 extern void juniper_mfr_if_print IF_PRINTER_ARGS; 499 extern void juniper_mlfr_if_print IF_PRINTER_ARGS; 500 extern void juniper_mlppp_if_print IF_PRINTER_ARGS; 501 extern void juniper_monitor_if_print IF_PRINTER_ARGS; 502 extern void juniper_ppp_if_print IF_PRINTER_ARGS; 503 extern void juniper_pppoe_atm_if_print IF_PRINTER_ARGS; 504 extern void juniper_pppoe_if_print IF_PRINTER_ARGS; 505 extern void juniper_services_if_print IF_PRINTER_ARGS; 506 extern void ltalk_if_print IF_PRINTER_ARGS; 507 extern void mfr_if_print IF_PRINTER_ARGS; 508 extern void netanalyzer_if_print IF_PRINTER_ARGS; 509 extern void netanalyzer_transparent_if_print IF_PRINTER_ARGS; 510 extern void nflog_if_print IF_PRINTER_ARGS; 511 extern void null_if_print IF_PRINTER_ARGS; 512 extern void pflog_if_print IF_PRINTER_ARGS; 513 extern void pktap_if_print IF_PRINTER_ARGS; 514 extern void ppi_if_print IF_PRINTER_ARGS; 515 extern void ppp_bsdos_if_print IF_PRINTER_ARGS; 516 extern void ppp_hdlc_if_print IF_PRINTER_ARGS; 517 extern void ppp_if_print IF_PRINTER_ARGS; 518 extern void pppoe_if_print IF_PRINTER_ARGS; 519 extern void prism_if_print IF_PRINTER_ARGS; 520 extern void raw_if_print IF_PRINTER_ARGS; 521 extern void sl_bsdos_if_print IF_PRINTER_ARGS; 522 extern void sl_if_print IF_PRINTER_ARGS; 523 extern void sll_if_print IF_PRINTER_ARGS; 524 extern void sll2_if_print IF_PRINTER_ARGS; 525 extern void sunatm_if_print IF_PRINTER_ARGS; 526 extern void symantec_if_print IF_PRINTER_ARGS; 527 extern void token_if_print IF_PRINTER_ARGS; 528 extern void unsupported_if_print IF_PRINTER_ARGS; 529 extern void usb_linux_48_byte_if_print IF_PRINTER_ARGS; 530 extern void usb_linux_64_byte_if_print IF_PRINTER_ARGS; 531 extern void vsock_if_print IF_PRINTER_ARGS; 532 533 /* 534 * Structure passed to some printers to allow them to print 535 * link-layer address information if ndo_eflag isn't set 536 * (because they are for protocols that don't have their 537 * own addresses, so that we'd want to report link-layer 538 * address information). 539 * 540 * This contains a pointer to an address and a pointer to a routine 541 * to which we pass that pointer in order to get a string. 542 */ 543 struct lladdr_info { 544 const char *(*addr_string)(netdissect_options *, const u_char *); 545 const u_char *addr; 546 }; 547 548 /* The printer routines. */ 549 550 extern void aarp_print(netdissect_options *, const u_char *, u_int); 551 extern int ah_print(netdissect_options *, const u_char *); 552 extern void ahcp_print(netdissect_options *, const u_char *, u_int); 553 extern void aodv_print(netdissect_options *, const u_char *, u_int, int); 554 extern void aoe_print(netdissect_options *, const u_char *, const u_int); 555 extern int arista_ethertype_print(netdissect_options *,const u_char *, u_int); 556 extern void arp_print(netdissect_options *, const u_char *, u_int, u_int); 557 extern void ascii_print(netdissect_options *, const u_char *, u_int); 558 extern void atalk_print(netdissect_options *, const u_char *, u_int); 559 extern void atm_print(netdissect_options *, u_int, u_int, u_int, const u_char *, u_int, u_int); 560 extern void babel_print(netdissect_options *, const u_char *, u_int); 561 extern void bcm_li_print(netdissect_options *, const u_char *, u_int); 562 extern void beep_print(netdissect_options *, const u_char *, u_int); 563 extern void bfd_print(netdissect_options *, const u_char *, u_int, u_int); 564 extern void bgp_print(netdissect_options *, const u_char *, u_int); 565 extern const char *bgp_vpn_rd_print(netdissect_options *, const u_char *); 566 extern void bootp_print(netdissect_options *, const u_char *, u_int); 567 extern void calm_fast_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *); 568 extern void carp_print(netdissect_options *, const u_char *, u_int, u_int); 569 extern void cdp_print(netdissect_options *, const u_char *, u_int); 570 extern void cfm_print(netdissect_options *, const u_char *, u_int); 571 extern u_int chdlc_print(netdissect_options *, const u_char *, u_int); 572 extern void cisco_autorp_print(netdissect_options *, const u_char *, u_int); 573 extern void cnfp_print(netdissect_options *, const u_char *); 574 extern void dccp_print(netdissect_options *, const u_char *, const u_char *, u_int); 575 extern void decnet_print(netdissect_options *, const u_char *, u_int, u_int); 576 extern void dhcp6_print(netdissect_options *, const u_char *, u_int); 577 extern int dstopt_process(netdissect_options *, const u_char *); 578 extern void dtp_print(netdissect_options *, const u_char *, u_int); 579 extern void dvmrp_print(netdissect_options *, const u_char *, u_int); 580 extern void eap_print(netdissect_options *, const u_char *, u_int); 581 extern void eapol_print(netdissect_options *, const u_char *); 582 extern void egp_print(netdissect_options *, const u_char *, u_int); 583 extern void eigrp_print(netdissect_options *, const u_char *, u_int); 584 extern void esp_print(netdissect_options *, const u_char *, u_int, const u_char *, u_int, int, u_int); 585 extern u_int ether_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), const u_char *); 586 extern u_int ether_switch_tag_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), u_int); 587 extern int ethertype_print(netdissect_options *, u_short, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *); 588 extern u_int fddi_print(netdissect_options *, const u_char *, u_int, u_int); 589 extern void forces_print(netdissect_options *, const u_char *, u_int); 590 extern u_int fr_print(netdissect_options *, const u_char *, u_int); 591 extern int frag6_print(netdissect_options *, const u_char *, const u_char *); 592 extern void ftp_print(netdissect_options *, const u_char *, u_int); 593 extern void geneve_print(netdissect_options *, const u_char *, u_int); 594 extern void geonet_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *); 595 extern void gre_print(netdissect_options *, const u_char *, u_int); 596 extern int hbhopt_process(netdissect_options *, const u_char *, int *, uint32_t *); 597 extern void hex_and_ascii_print(netdissect_options *, const char *, const u_char *, u_int); 598 extern void hex_print(netdissect_options *, const char *ident, const u_char *cp, u_int); 599 extern void hex_print_with_offset(netdissect_options *, const char *ident, const u_char *cp, u_int, u_int); 600 extern void hncp_print(netdissect_options *, const u_char *, u_int); 601 extern void hsrp_print(netdissect_options *, const u_char *, u_int); 602 extern void http_print(netdissect_options *, const u_char *, u_int); 603 extern void icmp6_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 604 extern void icmp_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 605 extern u_int ieee802_15_4_print(netdissect_options *, const u_char *, u_int); 606 extern u_int ieee802_11_radio_print(netdissect_options *, const u_char *, u_int, u_int); 607 extern void igmp_print(netdissect_options *, const u_char *, u_int); 608 extern void igrp_print(netdissect_options *, const u_char *, u_int); 609 extern void ip6_print(netdissect_options *, const u_char *, u_int); 610 extern void ipN_print(netdissect_options *, const u_char *, u_int); 611 extern void ip_print(netdissect_options *, const u_char *, u_int); 612 extern void ipcomp_print(netdissect_options *, const u_char *); 613 extern void ipx_netbios_print(netdissect_options *, const u_char *, u_int); 614 extern void ipx_print(netdissect_options *, const u_char *, u_int); 615 extern void isakmp_print(netdissect_options *, const u_char *, u_int, const u_char *); 616 extern void isakmp_rfc3948_print(netdissect_options *, const u_char *, u_int, const u_char *, int, int, u_int); 617 extern void isoclns_print(netdissect_options *, const u_char *, u_int); 618 extern void krb_print(netdissect_options *, const u_char *); 619 extern void l2tp_print(netdissect_options *, const u_char *, u_int); 620 extern void lane_print(netdissect_options *, const u_char *, u_int, u_int); 621 extern void ldp_print(netdissect_options *, const u_char *, u_int); 622 extern void lisp_print(netdissect_options *, const u_char *, u_int); 623 extern u_int llap_print(netdissect_options *, const u_char *, u_int); 624 extern int llc_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *); 625 extern void lldp_print(netdissect_options *, const u_char *, u_int); 626 extern void lmp_print(netdissect_options *, const u_char *, u_int); 627 extern void loopback_print(netdissect_options *, const u_char *, u_int); 628 extern void lspping_print(netdissect_options *, const u_char *, u_int); 629 extern void lwapp_control_print(netdissect_options *, const u_char *, u_int, int); 630 extern void lwapp_data_print(netdissect_options *, const u_char *, u_int); 631 extern void lwres_print(netdissect_options *, const u_char *, u_int); 632 extern void m3ua_print(netdissect_options *, const u_char *, const u_int); 633 extern int macsec_print(netdissect_options *, const u_char **, 634 u_int *, u_int *, u_int *, const struct lladdr_info *, 635 const struct lladdr_info *); 636 extern u_int mfr_print(netdissect_options *, const u_char *, u_int); 637 extern void mobile_print(netdissect_options *, const u_char *, u_int); 638 extern int mobility_print(netdissect_options *, const u_char *, const u_char *); 639 extern void mpcp_print(netdissect_options *, const u_char *, u_int); 640 extern void mpls_print(netdissect_options *, const u_char *, u_int); 641 extern int mptcp_print(netdissect_options *, const u_char *, u_int, u_char); 642 extern void msdp_print(netdissect_options *, const u_char *, u_int); 643 extern void msnlb_print(netdissect_options *, const u_char *); 644 extern void nbt_tcp_print(netdissect_options *, const u_char *, u_int); 645 extern void nbt_udp137_print(netdissect_options *, const u_char *, u_int); 646 extern void nbt_udp138_print(netdissect_options *, const u_char *, u_int); 647 extern void netbeui_print(netdissect_options *, u_short, const u_char *, u_int); 648 extern void nfsreply_print(netdissect_options *, const u_char *, u_int, const u_char *); 649 extern void nfsreply_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *); 650 extern void nfsreq_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *); 651 extern const u_char *fqdn_print(netdissect_options *, const u_char *, const u_char *); 652 extern void domain_print(netdissect_options *, const u_char *, u_int, int, int); 653 extern void nsh_print(netdissect_options *, const u_char *, u_int); 654 extern void ntp_print(netdissect_options *, const u_char *, u_int); 655 extern void oam_print(netdissect_options *, const u_char *, u_int, u_int); 656 extern void olsr_print(netdissect_options *, const u_char *, u_int, int); 657 extern void openflow_print(netdissect_options *, const u_char *, u_int); 658 extern void ospf6_print(netdissect_options *, const u_char *, u_int); 659 extern void ospf_print(netdissect_options *, const u_char *, u_int, const u_char *); 660 extern int ospf_grace_lsa_print(netdissect_options *, const u_char *, u_int); 661 extern int ospf_te_lsa_print(netdissect_options *, const u_char *, u_int); 662 extern void otv_print(netdissect_options *, const u_char *, u_int); 663 extern void pgm_print(netdissect_options *, const u_char *, u_int, const u_char *); 664 extern void pim_print(netdissect_options *, const u_char *, u_int, const u_char *); 665 extern void pimv1_print(netdissect_options *, const u_char *, u_int); 666 extern u_int ppp_print(netdissect_options *, const u_char *, u_int); 667 extern u_int pppoe_print(netdissect_options *, const u_char *, u_int); 668 extern void pptp_print(netdissect_options *, const u_char *); 669 extern void ptp_print(netdissect_options *, const u_char *, u_int); 670 extern int print_unknown_data(netdissect_options *, const u_char *, const char *, u_int); 671 extern const char *q922_string(netdissect_options *, const u_char *, u_int); 672 extern void q933_print(netdissect_options *, const u_char *, u_int); 673 extern void radius_print(netdissect_options *, const u_char *, u_int); 674 extern void resp_print(netdissect_options *, const u_char *, u_int); 675 extern void rip_print(netdissect_options *, const u_char *, u_int); 676 extern void ripng_print(netdissect_options *, const u_char *, unsigned int); 677 extern void rpki_rtr_print(netdissect_options *, const u_char *, u_int); 678 extern void rrcp_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *, const struct lladdr_info *); 679 extern void rsvp_print(netdissect_options *, const u_char *, u_int); 680 extern int rt6_print(netdissect_options *, const u_char *, const u_char *); 681 extern void rtsp_print(netdissect_options *, const u_char *, u_int); 682 extern void rx_print(netdissect_options *, const u_char *, u_int, uint16_t, uint16_t, const u_char *); 683 extern void sctp_print(netdissect_options *, const u_char *, const u_char *, u_int); 684 extern void sflow_print(netdissect_options *, const u_char *, u_int); 685 extern void ssh_print(netdissect_options *, const u_char *, u_int); 686 extern void sip_print(netdissect_options *, const u_char *, u_int); 687 extern void slow_print(netdissect_options *, const u_char *, u_int); 688 extern void smb_tcp_print(netdissect_options *, const u_char *, u_int); 689 extern void smtp_print(netdissect_options *, const u_char *, u_int); 690 extern int snap_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *, u_int); 691 extern void snmp_print(netdissect_options *, const u_char *, u_int); 692 extern void stp_print(netdissect_options *, const u_char *, u_int); 693 extern void sunrpc_print(netdissect_options *, const u_char *, u_int, const u_char *); 694 extern void syslog_print(netdissect_options *, const u_char *, u_int); 695 extern void tcp_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 696 extern void telnet_print(netdissect_options *, const u_char *, u_int); 697 extern void tftp_print(netdissect_options *, const u_char *, u_int); 698 extern void timed_print(netdissect_options *, const u_char *); 699 extern void tipc_print(netdissect_options *, const u_char *, u_int, u_int); 700 extern u_int token_print(netdissect_options *, const u_char *, u_int, u_int); 701 extern void udld_print(netdissect_options *, const u_char *, u_int); 702 extern void udp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, u_int); 703 extern int vjc_print(netdissect_options *, const u_char *, u_short); 704 extern void vqp_print(netdissect_options *, const u_char *, u_int); 705 extern void vrrp_print(netdissect_options *, const u_char *, u_int, const u_char *, int); 706 extern void vtp_print(netdissect_options *, const u_char *, const u_int); 707 extern void vxlan_gpe_print(netdissect_options *, const u_char *, u_int); 708 extern void vxlan_print(netdissect_options *, const u_char *, u_int); 709 extern void wb_print(netdissect_options *, const u_char *, u_int); 710 extern void zep_print(netdissect_options *, const u_char *, u_int); 711 extern void zephyr_print(netdissect_options *, const u_char *, u_int); 712 extern void zmtp1_print(netdissect_options *, const u_char *, u_int); 713 extern void zmtp1_datagram_print(netdissect_options *, const u_char *, const u_int); 714 extern void someip_print(netdissect_options *, const u_char *, const u_int); 715 716 /* checksum routines */ 717 extern void init_checksum(void); 718 extern uint16_t verify_crc10_cksum(uint16_t, const u_char *, int); 719 extern uint16_t create_osi_cksum(const uint8_t *, int, int); 720 721 struct cksum_vec { 722 const uint8_t *ptr; 723 int len; 724 }; 725 extern uint16_t in_cksum(const struct cksum_vec *, int); 726 extern uint16_t in_cksum_shouldbe(uint16_t, uint16_t); 727 728 /* IP protocol demuxing routines */ 729 extern void ip_demux_print(netdissect_options *, const u_char *, u_int, u_int, int, u_int, uint8_t, const u_char *); 730 731 extern uint16_t nextproto4_cksum(netdissect_options *, const struct ip *, const uint8_t *, u_int, u_int, uint8_t); 732 733 /* in print-ip6.c */ 734 extern uint16_t nextproto6_cksum(netdissect_options *, const struct ip6_hdr *, const uint8_t *, u_int, u_int, uint8_t); 735 736 /* Utilities */ 737 extern void nd_print_trunc(netdissect_options *); 738 extern void nd_print_protocol(netdissect_options *); 739 extern void nd_print_protocol_caps(netdissect_options *); 740 extern void nd_print_invalid(netdissect_options *); 741 742 extern int mask2plen(uint32_t); 743 extern int mask62plen(const u_char *); 744 745 extern const char *dnnum_string(netdissect_options *, u_short); 746 747 extern int decode_prefix4(netdissect_options *, const u_char *, u_int, char *, size_t); 748 extern int decode_prefix6(netdissect_options *, const u_char *, u_int, char *, size_t); 749 750 extern void esp_decodesecret_print(netdissect_options *); 751 extern int esp_decrypt_buffer_by_ikev2_print(netdissect_options *, int, 752 const u_char spii[8], 753 const u_char spir[8], 754 const u_char *, const u_char *); 755 756 #endif /* netdissect_h */ 757