The Tcpdump Group git mirrors - tcpdump/blob - netdissect.h

   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
  33 #ifndef HAVE___ATTRIBUTE__
  34 #define __attribute__(x)
  35 #endif
  36
  37 /* snprintf et al */
  38
  39 #include <stdarg.h>
  40
  41 #if !defined(HAVE_SNPRINTF)
  42 int snprintf (char *str, size_t sz, const char *format, ...)
  43 #ifdef __ATTRIBUTE___FORMAT_OK
  44      __attribute__((format (printf, 3, 4)))
  45 #endif /* __ATTRIBUTE___FORMAT_OK */
  46      ;
  47 #endif /* !defined(HAVE_SNPRINTF) */
  48
  49 #if !defined(HAVE_VSNPRINTF)
  50 int vsnprintf (char *str, size_t sz, const char *format, va_list ap)
  51 #ifdef __ATTRIBUTE___FORMAT_OK
  52      __attribute__((format (printf, 3, 0)))
  53 #endif /* __ATTRIBUTE___FORMAT_OK */
  54      ;
  55 #endif /* !defined(HAVE_SNPRINTF) */
  56
  57 #ifndef HAVE_STRLCAT
  58 extern size_t strlcat (char *, const char *, size_t);
  59 #endif
  60 #ifndef HAVE_STRLCPY
  61 extern size_t strlcpy (char *, const char *, size_t);
  62 #endif
  63
  64 #ifndef HAVE_STRDUP
  65 extern char *strdup (const char *str);
  66 #endif
  67
  68 #ifndef HAVE_STRSEP
  69 extern char *strsep(char **, const char *);
  70 #endif
  71
  72 struct tok {
  73         int v;                  /* value */
  74         const char *s;          /* string */
  75 };
  76
  77 #define TOKBUFSIZE 128
  78 extern const char *tok2strbuf(const struct tok *, const char *, int,
  79                               char *buf, size_t bufsize);
  80
  81 /* tok2str is deprecated */
  82 extern const char *tok2str(const struct tok *, const char *, int);
  83 extern char *bittok2str(const struct tok *, const char *, int);
  84 extern char *bittok2str_nosep(const struct tok *, const char *, int);
  85
  86
  87 typedef struct netdissect_options netdissect_options;
  88
  89 struct netdissect_options {
  90   int ndo_aflag;                /* translate network and broadcast addresses */
  91   int ndo_bflag;                /* print 4 byte ASes in ASDOT notation */
  92   int ndo_eflag;                /* print ethernet header */
  93   int ndo_fflag;                /* don't translate "foreign" IP address */
  94   int ndo_Kflag;                /* don't check TCP checksums */
  95   int ndo_nflag;                /* leave addresses as numbers */
  96   int ndo_Nflag;                /* remove domains from printed host names */
  97   int ndo_qflag;                /* quick (shorter) output */
  98   int ndo_Rflag;                /* print sequence # field in AH/ESP*/
  99   int ndo_sflag;                /* use the libsmi to translate OIDs */
 100   int ndo_Sflag;                /* print raw TCP sequence numbers */
 101   int ndo_tflag;                /* print packet arrival time */
 102   int ndo_Uflag;                /* "unbuffered" output of dump files */
 103   int ndo_uflag;                /* Print undecoded NFS handles */
 104   int ndo_vflag;                /* verbose */
 105   int ndo_xflag;                /* print packet in hex */
 106   int ndo_Xflag;                /* print packet in hex/ascii */
 107   int ndo_Aflag;                /* print packet only in ascii observing TAB,
 108                                  * LF, CR and SPACE as graphical chars
 109                                  */
 110   int ndo_Bflag;                /* buffer size */
 111   int ndo_Iflag;                /* rfmon (monitor) mode */
 112   int ndo_Oflag;                /* run filter code optimizer */
 113   int ndo_dlt;                  /* if != -1, ask libpcap for the DLT it names*/
 114   int ndo_jflag;                /* packet time stamp source */
 115   int ndo_pflag;                /* don't go promiscuous */
 116
 117   int ndo_Cflag;                /* rotate dump files after this many bytes */
 118   int ndo_Cflag_count;      /* Keep track of which file number we're writing */
 119   int ndo_Gflag;            /* rotate dump files after this many seconds */
 120   int ndo_Gflag_count;      /* number of files created with Gflag rotation */
 121   time_t ndo_Gflag_time;    /* The last time_t the dump file was rotated. */
 122   int ndo_Wflag;          /* recycle output files after this number of files */
 123   int ndo_WflagChars;
 124   int ndo_Hflag;                /* dissect 802.11s draft mesh standard */
 125   int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */
 126   const char *ndo_dltname;
 127
 128   char *ndo_espsecret;
 129   struct sa_list *ndo_sa_list_head;  /* used by print-esp.c */
 130   struct sa_list *ndo_sa_default;
 131
 132   char *ndo_sigsecret;          /* Signature verification secret key */
 133
 134   struct esp_algorithm *ndo_espsecret_xform;   /* cache of decoded  */
 135   char                 *ndo_espsecret_key;
 136
 137   int   ndo_packettype; /* as specified by -T */
 138
 139   char *ndo_program_name;       /*used to generate self-identifying messages */
 140
 141   int32_t ndo_thiszone; /* seconds offset from gmt to local time */
 142
 143   int   ndo_snaplen;
 144
 145   /*global pointers to beginning and end of current packet (during printing) */
 146   const u_char *ndo_packetp;
 147   const u_char *ndo_snapend;
 148
 149   /* bookkeeping for ^T output */
 150   int ndo_infodelay;
 151
 152   /* pointer to void function to output stuff */
 153   void (*ndo_default_print)(netdissect_options *,
 154                       register const u_char *bp, register u_int length);
 155   void (*ndo_info)(netdissect_options *, int verbose);
 156
 157   int  (*ndo_printf)(netdissect_options *,
 158                      const char *fmt, ...)
 159 #ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
 160                      __attribute__ ((format (printf, 2, 3)))
 161 #endif
 162                      ;
 163   void (*ndo_error)(netdissect_options *,
 164                     const char *fmt, ...)
 165 #ifdef __ATTRIBUTE___NORETURN_OK_FOR_FUNCTION_POINTERS
 166                      __attribute__ ((noreturn))
 167 #endif /* __ATTRIBUTE___NORETURN_OK_FOR_FUNCTION_POINTERS */
 168 #ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
 169                      __attribute__ ((format (printf, 2, 3)))
 170 #endif /* __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS */
 171                      ;
 172   void (*ndo_warning)(netdissect_options *,
 173                       const char *fmt, ...)
 174 #ifdef __ATTRIBUTE___FORMAT_OK_FOR_FUNCTION_POINTERS
 175                      __attribute__ ((format (printf, 2, 3)))
 176 #endif
 177                      ;
 178 };
 179
 180 #define PT_VAT          1       /* Visual Audio Tool */
 181 #define PT_WB           2       /* distributed White Board */
 182 #define PT_RPC          3       /* Remote Procedure Call */
 183 #define PT_RTP          4       /* Real-Time Applications protocol */
 184 #define PT_RTCP         5       /* Real-Time Applications control protocol */
 185 #define PT_SNMP         6       /* Simple Network Management Protocol */
 186 #define PT_CNFP         7       /* Cisco NetFlow protocol */
 187 #define PT_TFTP         8       /* trivial file transfer protocol */
 188 #define PT_AODV         9       /* Ad-hoc On-demand Distance Vector Protocol */
 189 #define PT_CARP         10      /* Common Address Redundancy Protocol */
 190 #define PT_RADIUS       11      /* RADIUS authentication Protocol */
 191 #define PT_ZMTP1        12      /* ZeroMQ Message Transport Protocol 1.0 */
 192 #define PT_VXLAN        13      /* Virtual eXtensible Local Area Network */
 193 #define PT_PGM          14      /* [UDP-encapsulated] Pragmatic General Multicast */
 194 #define PT_PGM_ZMTP1    15      /* ZMTP/1.0 inside PGM (native or UDP-encapsulated) */
 195 #define PT_LMP          16      /* Link Management Protocol */
 196
 197 #ifndef min
 198 #define min(a,b) ((a)>(b)?(b):(a))
 199 #endif
 200 #ifndef max
 201 #define max(a,b) ((b)>(a)?(b):(a))
 202 #endif
 203
 204 /*
 205  * Maximum snapshot length.  This should be enough to capture the full
 206  * packet on most network interfaces.
 207  *
 208  * XXX - could it be larger?  If so, should it?  Some applications might
 209  * use the snapshot length in a savefile header to control the size of
 210  * the buffer they allocate, so a size of, say, 2^31-1 might not work
 211  * well.
 212  */
 213 #define MAXIMUM_SNAPLEN 65535
 214
 215 /*
 216  * The default snapshot length is the maximum.
 217  */
 218 #define DEFAULT_SNAPLEN MAXIMUM_SNAPLEN
 219
 220 #define ESRC(ep) ((ep)->ether_shost)
 221 #define EDST(ep) ((ep)->ether_dhost)
 222
 223 #ifndef NTOHL
 224 #define NTOHL(x)        (x) = ntohl(x)
 225 #define NTOHS(x)        (x) = ntohs(x)
 226 #define HTONL(x)        (x) = htonl(x)
 227 #define HTONS(x)        (x) = htons(x)
 228 #endif
 229
 230 /*
 231  * True if "l" bytes of "var" were captured.
 232  *
 233  * The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure
 234  * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows.
 235  *
 236  * The check is for <= rather than < because "l" might be 0.
 237  */
 238 #define ND_TTEST2(var, l) (ndo->ndo_snapend - (l) <= ndo->ndo_snapend && \
 239                         (const u_char *)&(var) <= ndo->ndo_snapend - (l))
 240
 241 /* True if "var" was captured */
 242 #define ND_TTEST(var) ND_TTEST2(var, sizeof(var))
 243
 244 /* Bail if "l" bytes of "var" were not captured */
 245 #define ND_TCHECK2(var, l) if (!ND_TTEST2(var, l)) goto trunc
 246
 247 /* Bail if "var" was not captured */
 248 #define ND_TCHECK(var) ND_TCHECK2(var, sizeof(var))
 249
 250 #define ND_PRINT(STUFF) (*ndo->ndo_printf)STUFF
 251 #define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
 252
 253 #if 0
 254 extern void ts_print(netdissect_options *ipdo,
 255                      const struct timeval *);
 256 extern void relts_print(int);
 257 #endif
 258
 259 extern int fn_print(const u_char *, const u_char *);
 260 extern int fn_printn(const u_char *, u_int, const u_char *);
 261 extern const char *tok2str(const struct tok *, const char *, int);
 262
 263 extern void wrapup(int);
 264
 265 #if 0
 266 extern char *read_infile(netdissect_options *, char *);
 267 extern char *copy_argv(netdissect_options *, char **);
 268 #endif
 269
 270 extern void safeputchar(int);
 271 extern void safeputs(const char *, int);
 272
 273 #define PLURAL_SUFFIX(n) \
 274         (((n) != 1) ? "s" : "")
 275
 276 #if 0
 277 extern const char *isonsap_string(netdissect_options *, const u_char *);
 278 extern const char *protoid_string(netdissect_options *, const u_char *);
 279 extern const char *dnname_string(netdissect_options *, u_short);
 280 extern const char *dnnum_string(netdissect_options *, u_short);
 281 #endif
 282
 283 /* The printer routines. */
 284
 285 #include <pcap.h>
 286
 287 typedef u_int (*if_ndo_printer)(struct netdissect_options *ndo,
 288                                 const struct pcap_pkthdr *, const u_char *);
 289 typedef u_int (*if_printer)(const struct pcap_pkthdr *, const u_char *);
 290
 291 extern if_ndo_printer lookup_ndo_printer(int);
 292 extern if_printer lookup_printer(int);
 293
 294 extern void eap_print(netdissect_options *,const u_char *, u_int);
 295 extern int esp_print(netdissect_options *,
 296                      register const u_char *bp, int len, register const u_char *bp2,
 297                      int *nhdr, int *padlen);
 298 extern void arp_print(netdissect_options *,const u_char *, u_int, u_int);
 299 extern void tipc_print(netdissect_options *, const u_char *, u_int, u_int);
 300 extern void msnlb_print(netdissect_options *, const u_char *);
 301 extern void icmp6_print(netdissect_options *ndo, const u_char *,
 302                         u_int, const u_char *, int);
 303 extern void isakmp_print(netdissect_options *,const u_char *,
 304                          u_int, const u_char *);
 305 extern void isakmp_rfc3948_print(netdissect_options *,const u_char *,
 306                                  u_int, const u_char *);
 307 extern void ip_print(netdissect_options *,const u_char *, u_int);
 308 extern void ip_print_inner(netdissect_options *ndo,
 309                            const u_char *bp, u_int length, u_int nh,
 310                            const u_char *bp2);
 311 extern void rrcp_print(netdissect_options *,const u_char *, u_int);
 312 extern void loopback_print(netdissect_options *, const u_char *, u_int);
 313
 314 extern void ether_print(netdissect_options *,
 315                         const u_char *, u_int, u_int,
 316                         void (*)(netdissect_options *, const u_char *),
 317                         const u_char *);
 318
 319 extern u_int ether_if_print(netdissect_options *,
 320                             const struct pcap_pkthdr *,const u_char *);
 321 extern u_int netanalyzer_if_print(netdissect_options *,
 322                                   const struct pcap_pkthdr *,const u_char *);
 323 extern u_int netanalyzer_transparent_if_print(netdissect_options *,
 324                                               const struct pcap_pkthdr *,
 325                                               const u_char *);
 326
 327 extern int ethertype_print(netdissect_options *,u_short, const u_char *,
 328                              u_int, u_int);
 329
 330 extern int print_unknown_data(netdissect_options *,const u_char *, const char *,int);
 331 extern void hex_print_with_offset(netdissect_options *, const char *ident, const u_char *cp,
 332                                   u_int, u_int);
 333 extern void hex_print(netdissect_options *,const char *ident, const u_char *cp,u_int);
 334
 335 /* stuff that has not yet been rototiled */
 336 extern const u_char * ns_nprint (register const u_char *, register const u_char *);
 337
 338 #if 0
 339 extern void ascii_print(netdissect_options *,u_int);
 340 extern void hex_and_ascii_print_with_offset(netdissect_options *,const char *,
 341                                     u_int, u_int);
 342 extern void hex_and_ascii_print(netdissect_options *,const char *, u_int);
 343 extern void telnet_print(netdissect_options *,const u_char *, u_int);
 344 extern int llc_print(netdissect_options *,
 345                      const u_char *, u_int, u_int, const u_char *,
 346                      const u_char *, u_short *);
 347 extern void aarp_print(netdissect_options *,const u_char *, u_int);
 348 extern void atalk_print(netdissect_options *,const u_char *, u_int);
 349 extern void atm_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
 350 extern void bootp_print(netdissect_options *,const u_char *,
 351                         u_int, u_short, u_short);
 352 extern void bgp_print(netdissect_options *,const u_char *, int);
 353 extern void bxxp_print(netdissect_options *,const u_char *, u_int);
 354 extern void chdlc_if_print(u_char *user, const struct pcap_pkthdr *h,
 355                            register const u_char *p);
 356 extern void chdlc_print(netdissect_options *ndo,
 357                         register const u_char *p, u_int length, u_int caplen);
 358 extern void cisco_autorp_print(netdissect_options *,
 359                                const u_char *, u_int);
 360 extern void cnfp_print(netdissect_options *,const u_char *cp,
 361                        u_int len, const u_char *bp);
 362 extern void decnet_print(netdissect_options *,const u_char *,
 363                          u_int, u_int);
 364 extern void default_print(netdissect_options *,const u_char *, u_int);
 365 extern void dvmrp_print(netdissect_options *,const u_char *, u_int);
 366 extern void egp_print(netdissect_options *,const u_char *, u_int,
 367                       const u_char *);
 368
 369 extern void arcnet_if_print(u_char*,const struct pcap_pkthdr *,const u_char *);
 370 extern void token_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
 371 extern void fddi_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
 372
 373 extern void gre_print(netdissect_options *,const u_char *, u_int);
 374 extern void icmp_print(netdissect_options *,const u_char *, u_int,
 375                        const u_char *);
 376 extern void hsrp_print(netdissect_options *ndo,
 377                        register const u_char *bp, register u_int len);
 378 extern void ieee802_11_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
 379 extern void igmp_print(netdissect_options *,
 380                        register const u_char *, u_int);
 381 extern void igrp_print(netdissect_options *,const u_char *, u_int,
 382                        const u_char *);
 383 extern int nextproto4_cksum(const struct ip *, const u_int8_t *, u_int, u_int);
 384 extern void ipN_print(netdissect_options *,const u_char *, u_int);
 385 extern void ipx_print(netdissect_options *,const u_char *, u_int);
 386 extern void isoclns_print(netdissect_options *,const u_char *,
 387                           u_int, u_int, const u_char *, const u_char *);
 388 extern void krb_print(netdissect_options *,const u_char *, u_int);
 389 extern void llap_print(netdissect_options *,const u_char *, u_int);
 390 extern const char *linkaddr_string(netdissect_options *ndo,
 391                                    const u_char *ep, const unsigned int len);
 392 extern void ltalk_if_print(netdissect_options *ndo,
 393                            u_char *user, const struct pcap_pkthdr *h,
 394                            const u_char *p);
 395 extern void mpls_print(netdissect_options *ndo,
 396                        const u_char *bp, u_int length);
 397 extern void msdp_print(netdissect_options *ndo,
 398                        const unsigned char *sp, u_int length);
 399 extern void nfsreply_print(netdissect_options *,const u_char *,
 400                            u_int, const u_char *);
 401 extern void nfsreq_print(netdissect_options *,const u_char *,
 402                          u_int, const u_char *);
 403 extern void ns_print(netdissect_options *,const u_char *, u_int);
 404 extern void ntp_print(netdissect_options *,const u_char *, u_int);
 405 extern void null_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
 406 extern void ospf_print(netdissect_options *,const u_char *,
 407                        u_int, const u_char *);
 408 extern void pimv1_print(netdissect_options *,const u_char *, u_int);
 409 extern void mobile_print(netdissect_options *,const u_char *, u_int);
 410 extern void pim_print(netdissect_options *,const u_char *, u_int, u_int);
 411 extern void pppoe_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
 412 extern void pppoe_print(netdissect_options *,const u_char *, u_int);
 413 extern void ppp_print(netdissect_options *,
 414                       register const u_char *, u_int);
 415
 416 extern void ppp_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
 417 extern void ppp_hdlc_if_print(u_char *,
 418                               const struct pcap_pkthdr *, const u_char *);
 419 extern void ppp_bsdos_if_print(u_char *,
 420                                const struct pcap_pkthdr *, const u_char *);
 421
 422 extern int vjc_print(netdissect_options *,register const char *,
 423                      register u_int, u_short);
 424
 425 extern void raw_if_print(u_char *,
 426                          const struct pcap_pkthdr *, const u_char *);
 427
 428 extern void rip_print(netdissect_options *,const u_char *, u_int);
 429 extern void rpki_rtr_print(netdissect_options *,const u_char *, u_int);
 430
 431 extern void sctp_print(netdissect_options *ndo,
 432                        const u_char *bp, const u_char *bp2,
 433                        u_int sctpPacketLength);
 434
 435 extern void sl_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
 436
 437 extern void lane_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
 438 extern void cip_if_print(u_char *,const struct pcap_pkthdr *,const u_char *);
 439 extern void sl_bsdos_if_print(u_char *,
 440                               const struct pcap_pkthdr *, const u_char *);
 441 extern void sll_if_print(u_char *,
 442                          const struct pcap_pkthdr *, const u_char *);
 443
 444 extern void snmp_print(netdissect_options *,const u_char *, u_int);
 445 extern void sunrpcrequest_print(netdissect_options *,const u_char *,
 446                                 u_int, const u_char *);
 447 extern void tcp_print(netdissect_options *,const u_char *, u_int,
 448                       const u_char *, int);
 449 extern void tftp_print(netdissect_options *,const u_char *, u_int);
 450 extern void timed_print(netdissect_options *,const u_char *, u_int);
 451 extern void udp_print(netdissect_options *,const u_char *, u_int,
 452                       const u_char *, int);
 453 extern void wb_print(netdissect_options *,const void *, u_int);
 454 extern int ah_print(netdissect_options *,register const u_char *,
 455                     register const u_char *);
 456 extern void esp_print_decodesecret(netdissect_options *ndo);
 457 extern int ipcomp_print(netdissect_options *,register const u_char *,
 458                         register const u_char *, int *);
 459 extern void rx_print(netdissect_options *,register const u_char *,
 460                      int, int, int, u_char *);
 461 extern void netbeui_print(netdissect_options *,u_short,
 462                           const u_char *, int);
 463 extern void ipx_netbios_print(netdissect_options *,const u_char *, u_int);
 464 extern void nbt_tcp_print(netdissect_options *,const u_char *, int);
 465 extern void nbt_udp137_print(netdissect_options *,
 466                              const u_char *data, int);
 467 extern void nbt_udp138_print(netdissect_options *,
 468                              const u_char *data, int);
 469 extern char *smb_errstr(netdissect_options *,int, int);
 470 extern const char *nt_errstr(netdissect_options *, u_int32_t);
 471 extern void print_data(netdissect_options *,const unsigned char *, int);
 472 extern void l2tp_print(netdissect_options *,const u_char *, u_int);
 473 extern void lcp_print(netdissect_options *,const u_char *, u_int);
 474 extern void vrrp_print(netdissect_options *,const u_char *bp,
 475                        u_int len, int ttl);
 476 extern void carp_print(netdissect_options *,const u_char *bp,
 477                        u_int len, int ttl);
 478 extern void cdp_print(netdissect_options *,const u_char *,
 479                       u_int, u_int, const u_char *, const u_char *);
 480 extern void stp_print(netdissect_options *,const u_char *p, u_int length);
 481 extern void radius_print(netdissect_options *,const u_char *, u_int);
 482 extern void lwres_print(netdissect_options *,const u_char *, u_int);
 483 extern void pptp_print(netdissect_options *,const u_char *, u_int);
 484 #endif
 485
 486 extern u_int ipnet_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
 487 extern u_int ppi_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
 488 extern u_int nflog_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
 489 extern u_int ieee802_15_4_if_print(netdissect_options *,const struct pcap_pkthdr *, const u_char *);
 490
 491 #ifdef INET6
 492 extern void ip6_print(netdissect_options *,const u_char *, u_int);
 493 #if 0
 494 extern void ip6_opt_print(netdissect_options *,const u_char *, int);
 495 extern int nextproto6_cksum(const struct ip6_hdr *, const u_int8_t *, u_int, u_int);
 496 extern int hbhopt_print(netdissect_options *,const u_char *);
 497 extern int dstopt_print(netdissect_options *,const u_char *);
 498 extern int frag6_print(netdissect_options *,const u_char *,
 499                        const u_char *);
 500 extern void icmp6_print(netdissect_options *,const u_char *,
 501                         const u_char *);
 502 extern void ripng_print(netdissect_options *,const u_char *, int);
 503 extern int rt6_print(netdissect_options *,const u_char *, const u_char *);
 504 extern void ospf6_print(netdissect_options *,const u_char *, u_int);
 505 extern void dhcp6_print(netdissect_options *,const u_char *,
 506                         u_int, u_int16_t, u_int16_t);
 507
 508 extern void zephyr_print(netdissect_options * ndo,
 509                          const u_char *cp, int length);
 510 #endif /* 0 */
 511
 512 #endif /*INET6*/
 513
 514 #if 0
 515 struct cksum_vec {
 516         const u_int8_t  *ptr;
 517         int             len;
 518 };
 519 extern u_int16_t in_cksum(const struct cksum_vec *, int);
 520 extern u_int16_t in_cksum_shouldbe(u_int16_t, u_int16_t);
 521 #endif
 522
 523 extern void esp_print_decodesecret(netdissect_options *ndo);
 524 extern int esp_print_decrypt_buffer_by_ikev2(netdissect_options *ndo,
 525                                              int initiator,
 526                                              u_char spii[8], u_char spir[8],
 527                                              u_char *buf, u_char *end);
 528
 529
 530 extern void geonet_print(netdissect_options *ndo,const u_char *eth_hdr,const u_char *geo_pck, u_int len);
 531 extern void calm_fast_print(netdissect_options *ndo,const u_char *eth_hdr,const u_char *calm_pck, u_int len);
 532
 533 #endif  /* netdissect_h */