Adding upstream version 4.99.4.upstream/4.99.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 794 insertions, 0 deletions

diff --git a/netdissect.h b/netdissect.h
new file mode 100644
index 0000000..b1074ef
--- /dev/null
+++ b/netdissect.h
@@ -0,0 +1,794 @@
+/*
+ * Copyright (c) 1988-1997
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Copyright (c) 1998-2012  Michael Richardson <mcr@tcpdump.org>
+ *      The TCPDUMP project
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that: (1) source code distributions
+ * retain the above copyright notice and this paragraph in its entirety, (2)
+ * distributions including binary code include the above copyright notice and
+ * this paragraph in its entirety in the documentation or other materials
+ * provided with the distribution, and (3) all advertising materials mentioning
+ * features or use of this software display the following acknowledgement:
+ * ``This product includes software developed by the University of California,
+ * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
+ * the University nor the names of its contributors may be used to endorse
+ * or promote products derived from this software without specific prior
+ * written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef netdissect_h
+#define netdissect_h
+
+#ifdef HAVE_OS_PROTO_H
+#include "os-proto.h"
+#endif
+#include <sys/types.h>
+#include <setjmp.h>
+#include "status-exit-codes.h"
+#include "funcattrs.h" /* for PRINTFLIKE_FUNCPTR() */
+#include "diag-control.h" /* for ND_UNREACHABLE */
+
+/*
+ * Data types corresponding to multi-byte integral values within data
+ * structures.  These are defined as arrays of octets, so that they're
+ * not aligned on their "natural" boundaries, and so that you *must*
+ * use the EXTRACT_ macros to extract them (which you should be doing
+ * *anyway*, so as not to assume a particular byte order or alignment
+ * in your code).
+ *
+ * We even want EXTRACT_U_1 used for 8-bit integral values, so we
+ * define nd_uint8_t and nd_int8_t as arrays as well.
+ */
+typedef unsigned char nd_uint8_t[1];
+typedef unsigned char nd_uint16_t[2];
+typedef unsigned char nd_uint24_t[3];
+typedef unsigned char nd_uint32_t[4];
+typedef unsigned char nd_uint40_t[5];
+typedef unsigned char nd_uint48_t[6];
+typedef unsigned char nd_uint56_t[7];
+typedef unsigned char nd_uint64_t[8];
+
+typedef signed char nd_int8_t[1];
+
+/*
+ * "unsigned char" so that sign extension isn't done on the
+ * individual bytes while they're being assembled.
+ */
+typedef unsigned char nd_int32_t[4];
+typedef unsigned char nd_int64_t[8];
+
+#define	FMAXINT	(4294967296.0)	/* floating point rep. of MAXINT */
+
+/*
+ * Use this for IPv4 addresses and netmasks.
+ *
+ * It's defined as an array of octets, so that it's not guaranteed to
+ * be aligned on its "natural" boundary (in some packet formats, it
+ * *isn't* so aligned).  We have separate EXTRACT_ calls for them;
+ * sometimes you want the host-byte-order value, other times you want
+ * the network-byte-order value.
+ *
+ * Don't use EXTRACT_BE_U_4() on them, use EXTRACT_IPV4_TO_HOST_ORDER()
+ * if you want them in host byte order and EXTRACT_IPV4_TO_NETWORK_ORDER()
+ * if you want them in network byte order (which you want with system APIs
+ * that expect network-order IPv4 addresses, such as inet_ntop()).
+ *
+ * If, on your little-endian machine (e.g., an "IBM-compatible PC", no matter
+ * what the OS, or an Intel Mac, no matter what the OS), you get the wrong
+ * answer, and you've used EXTRACT_BE_U_4(), do *N*O*T* "fix" this by using
+ * EXTRACT_LE_U_4(), fix it by using EXTRACT_IPV4_TO_NETWORK_ORDER(),
+ * otherwise you're breaking the result on big-endian machines (e.g.,
+ * most PowerPC/Power ISA machines, System/390 and z/Architecture, SPARC,
+ * etc.).
+ *
+ * Yes, people do this; that's why Wireshark has tvb_get_ipv4(), to extract
+ * an IPv4 address from a packet data buffer; it was introduced in reaction
+ * to somebody who *had* done that.
+ */
+typedef unsigned char nd_ipv4[4];
+
+/*
+ * Use this for IPv6 addresses and netmasks.
+ */
+typedef unsigned char nd_ipv6[16];
+
+/*
+ * Use this for MAC addresses.
+ */
+#define MAC_ADDR_LEN	6U		/* length of MAC addresses */
+typedef unsigned char nd_mac_addr[MAC_ADDR_LEN];
+
+/*
+ * Use this for blobs of bytes; make them arrays of nd_byte.
+ */
+typedef unsigned char nd_byte;
+
+/*
+ * Round up x to a multiple of y; y must be a power of 2.
+ */
+#ifndef roundup2
+#define	roundup2(x, y)	(((x)+((u_int)((y)-1)))&(~((u_int)((y)-1))))
+#endif
+
+#include <stdarg.h>
+#include <pcap.h>
+
+#include "ip.h" /* struct ip for nextproto4_cksum() */
+#include "ip6.h" /* struct ip6 for nextproto6_cksum() */
+
+#ifndef HAVE_STRLCAT
+extern size_t strlcat (char *, const char *, size_t);
+#endif
+#ifndef HAVE_STRLCPY
+extern size_t strlcpy (char *, const char *, size_t);
+#endif
+
+#ifndef HAVE_STRDUP
+extern char *strdup (const char *str);
+#endif
+
+#ifndef HAVE_STRSEP
+extern char *strsep(char **, const char *);
+#endif
+
+struct tok {
+	u_int v;		/* value */
+	const char *s;		/* string */
+};
+
+/* tok2str is deprecated */
+extern const char *tok2str(const struct tok *, const char *, u_int);
+extern char *bittok2str(const struct tok *, const char *, u_int);
+extern char *bittok2str_nosep(const struct tok *, const char *, u_int);
+
+/* Initialize netdissect. */
+extern int nd_init(char *, size_t);
+/* Clean up netdissect. */
+extern void nd_cleanup(void);
+
+/* Do we have libsmi support? */
+extern int nd_have_smi_support(void);
+/* Load an SMI module. */
+extern int nd_load_smi_module(const char *, char *, size_t);
+/* Flag indicating whether an SMI module has been loaded. */
+extern int nd_smi_module_loaded;
+/* Version number of the SMI library, or NULL if we don't have libsmi support. */
+extern const char *nd_smi_version_string(void);
+
+typedef struct netdissect_options netdissect_options;
+
+#define IF_PRINTER_ARGS (netdissect_options *, const struct pcap_pkthdr *, const u_char *)
+
+typedef void (*if_printer) IF_PRINTER_ARGS;
+
+/*
+ * In case the data in a buffer needs to be processed by being decrypted,
+ * decompressed, etc. before it's dissected, we can't process it in place,
+ * we have to allocate a new buffer for the processed data.
+ *
+ * We keep a stack of those buffers; when we allocate a new buffer, we
+ * push the current one onto a stack, and when we're done with the new
+ * buffer, we free the current buffer and pop the previous one off the
+ * stack.
+ *
+ * A buffer has a beginning and end pointer, and a link to the previous
+ * buffer on the stack.
+ *
+ * In other cases, we temporarily adjust the snapshot end to reflect a
+ * packet-length field in the packet data and, when finished dissecting
+ * that part of the packet, restore the old snapshot end.  We keep that
+ * on the stack with null buffer pointer, meaning there's nothing to
+ * free.
+ */
+struct netdissect_saved_packet_info {
+  u_char *ndspi_buffer;					/* pointer to allocated buffer data */
+  const u_char *ndspi_packetp;				/* saved beginning of data */
+  const u_char *ndspi_snapend;				/* saved end of data */
+  struct netdissect_saved_packet_info *ndspi_prev;	/* previous buffer on the stack */
+};
+
+/* 'val' value(s) for longjmp */
+#define ND_TRUNCATED 1
+
+struct netdissect_options {
+  int ndo_bflag;		/* print 4 byte ASes in ASDOT notation */
+  int ndo_eflag;		/* print ethernet header */
+  int ndo_fflag;		/* don't translate "foreign" IP address */
+  int ndo_Kflag;		/* don't check IP, TCP or UDP checksums */
+  int ndo_nflag;		/* leave addresses as numbers */
+  int ndo_Nflag;		/* remove domains from printed host names */
+  int ndo_qflag;		/* quick (shorter) output */
+  int ndo_Sflag;		/* print raw TCP sequence numbers */
+  int ndo_tflag;		/* print packet arrival time */
+  int ndo_uflag;		/* Print undecoded NFS handles */
+  int ndo_vflag;		/* verbosity level */
+  int ndo_xflag;		/* print packet in hex */
+  int ndo_Xflag;		/* print packet in hex/ASCII */
+  int ndo_Aflag;		/* print packet only in ASCII observing TAB,
+				 * LF, CR and SPACE as graphical chars
+				 */
+  int ndo_Hflag;		/* dissect 802.11s draft mesh standard */
+  const char *ndo_protocol;	/* protocol */
+  jmp_buf ndo_early_end;	/* jmp_buf for setjmp()/longjmp() */
+  void *ndo_last_mem_p;		/* pointer to the last allocated memory chunk */
+  int ndo_packet_number;	/* print a packet number in the beginning of line */
+  int ndo_suppress_default_print; /* don't use default_print() for unknown packet types */
+  int ndo_tstamp_precision;	/* requested time stamp precision */
+  const char *program_name;	/* Name of the program using the library */
+
+  char *ndo_espsecret;
+  struct sa_list *ndo_sa_list_head;  /* used by print-esp.c */
+  struct sa_list *ndo_sa_default;
+
+  char *ndo_sigsecret;		/* Signature verification secret key */
+
+  int   ndo_packettype;	/* as specified by -T */
+
+  int   ndo_snaplen;
+  int   ndo_ll_hdr_len;	/* link-layer header length */
+
+  /*global pointers to beginning and end of current packet (during printing) */
+  const u_char *ndo_packetp;
+  const u_char *ndo_snapend;
+
+  /* stack of saved packet boundary and buffer information */
+  struct netdissect_saved_packet_info *ndo_packet_info_stack;
+
+  /* pointer to the if_printer function */
+  if_printer ndo_if_printer;
+
+  /* pointer to void function to output stuff */
+  void (*ndo_default_print)(netdissect_options *,
+			    const u_char *bp, u_int length);
+
+  /* pointer to function to do regular output */
+  int  (*ndo_printf)(netdissect_options *,
+		     const char *fmt, ...)
+		     PRINTFLIKE_FUNCPTR(2, 3);
+  /* pointer to function to output errors */
+  void NORETURN_FUNCPTR (*ndo_error)(netdissect_options *,
+				     status_exit_codes_t status,
+				     const char *fmt, ...)
+				     PRINTFLIKE_FUNCPTR(3, 4);
+  /* pointer to function to output warnings */
+  void (*ndo_warning)(netdissect_options *,
+		      const char *fmt, ...)
+		      PRINTFLIKE_FUNCPTR(2, 3);
+};
+
+extern WARN_UNUSED_RESULT int nd_push_buffer(netdissect_options *, u_char *, const u_char *, const u_int);
+extern WARN_UNUSED_RESULT int nd_push_snaplen(netdissect_options *, const u_char *, const u_int);
+extern void nd_change_snaplen(netdissect_options *, const u_char *, const u_int);
+extern void nd_pop_packet_info(netdissect_options *);
+extern void nd_pop_all_packet_info(netdissect_options *);
+
+static inline NORETURN void
+nd_trunc_longjmp(netdissect_options *ndo)
+{
+	longjmp(ndo->ndo_early_end, ND_TRUNCATED);
+#ifdef _AIX
+	/*
+	 * In AIX <setjmp.h> decorates longjmp() with "#pragma leaves", which tells
+	 * XL C that the function is noreturn, but GCC remains unaware of that and
+	 * yields a "'noreturn' function does return" warning.
+	 */
+	ND_UNREACHABLE
+#endif /* _AIX */
+}
+
+#define PT_VAT		1	/* Visual Audio Tool */
+#define PT_WB		2	/* distributed White Board */
+#define PT_RPC		3	/* Remote Procedure Call */
+#define PT_RTP		4	/* Real-Time Applications protocol */
+#define PT_RTCP		5	/* Real-Time Applications control protocol */
+#define PT_SNMP		6	/* Simple Network Management Protocol */
+#define PT_CNFP		7	/* Cisco NetFlow protocol */
+#define PT_TFTP		8	/* trivial file transfer protocol */
+#define PT_AODV		9	/* Ad-hoc On-demand Distance Vector Protocol */
+#define PT_CARP		10	/* Common Address Redundancy Protocol */
+#define PT_RADIUS	11	/* RADIUS authentication Protocol */
+#define PT_ZMTP1	12	/* ZeroMQ Message Transport Protocol 1.0 */
+#define PT_VXLAN	13	/* Virtual eXtensible Local Area Network */
+#define PT_PGM		14	/* [UDP-encapsulated] Pragmatic General Multicast */
+#define PT_PGM_ZMTP1	15	/* ZMTP/1.0 inside PGM (native or UDP-encapsulated) */
+#define PT_LMP		16	/* Link Management Protocol */
+#define PT_RESP		17	/* RESP */
+#define PT_PTP		18	/* PTP */
+#define PT_SOMEIP	19	/* Autosar SOME/IP Protocol */
+#define PT_DOMAIN	20	/* Domain Name System (DNS) */
+
+#define ND_MIN(a,b) ((a)>(b)?(b):(a))
+#define ND_MAX(a,b) ((b)>(a)?(b):(a))
+
+/* For source or destination ports tests (UDP, TCP, ...) */
+#define IS_SRC_OR_DST_PORT(p) (sport == (p) || dport == (p))
+
+/*
+ * Maximum snapshot length.  This should be enough to capture the full
+ * packet on most network interfaces.
+ *
+ *
+ * Somewhat arbitrary, but chosen to be:
+ *
+ *    1) big enough for maximum-size Linux loopback packets (65549)
+ *       and some USB packets captured with USBPcap:
+ *
+ *           https://desowin.org/usbpcap/
+ *
+ *       (> 131072, < 262144)
+ *
+ * and
+ *
+ *    2) small enough not to cause attempts to allocate huge amounts of
+ *       memory; some applications might use the snapshot length in a
+ *       savefile header to control the size of the buffer they allocate,
+ *       so a size of, say, 2^31-1 might not work well.
+ *
+ * XXX - does it need to be bigger still?  Note that, for versions of
+ * libpcap with pcap_create()/pcap_activate(), if no -s flag is specified
+ * or -s 0 is specified, we won't set the snapshot length at all, and will
+ * let libpcap choose a snapshot length; newer versions may choose a bigger
+ * value than 262144 for D-Bus, for example.
+ */
+#define MAXIMUM_SNAPLEN	262144
+
+/*
+ * True if "l" bytes from "p" were captured.
+ *
+ * The "ndo->ndo_snapend - (l) <= ndo->ndo_snapend" checks to make sure
+ * "l" isn't so large that "ndo->ndo_snapend - (l)" underflows.
+ *
+ * The check is for <= rather than < because "l" might be 0.
+ *
+ * We cast the pointers to uintptr_t to make sure that the compiler
+ * doesn't optimize away any of these tests (which it is allowed to
+ * do, as adding an integer to, or subtracting an integer from, a
+ * pointer assumes that the pointer is a pointer to an element of an
+ * array and that the result of the addition or subtraction yields a
+ * pointer to another member of the array, so that, for example, if
+ * you subtract a positive integer from a pointer, the result is
+ * guaranteed to be less than the original pointer value). See
+ *
+ *	https://www.kb.cert.org/vuls/id/162289
+ */
+
+/*
+ * Test in two parts to avoid these warnings:
+ * comparison of unsigned expression >= 0 is always true [-Wtype-limits],
+ * comparison is always true due to limited range of data type [-Wtype-limits].
+ */
+#define IS_NOT_NEGATIVE(x) (((x) > 0) || ((x) == 0))
+
+#define ND_TTEST_LEN(p, l) \
+  (IS_NOT_NEGATIVE(l) && \
+	((uintptr_t)ndo->ndo_snapend - (l) <= (uintptr_t)ndo->ndo_snapend && \
+         (uintptr_t)(p) <= (uintptr_t)ndo->ndo_snapend - (l)))
+
+/* True if "*(p)" was captured */
+#define ND_TTEST_SIZE(p) ND_TTEST_LEN(p, sizeof(*(p)))
+
+/* Bail out if "l" bytes from "p" were not captured */
+#ifdef ND_LONGJMP_FROM_TCHECK
+#define ND_TCHECK_LEN(p, l) if (!ND_TTEST_LEN(p, l)) nd_trunc_longjmp(ndo)
+#else
+#define ND_TCHECK_LEN(p, l) if (!ND_TTEST_LEN(p, l)) goto trunc
+#endif
+
+/* Bail out if "*(p)" was not captured */
+#define ND_TCHECK_SIZE(p) ND_TCHECK_LEN(p, sizeof(*(p)))
+
+/*
+ * Number of bytes between two pointers.
+ */
+#define ND_BYTES_BETWEEN(p1, p2) ((u_int)(((const uint8_t *)(p1)) - (const uint8_t *)(p2)))
+
+/*
+ * Number of bytes remaining in the captured data, starting at the
+ * byte pointed to by the argument.
+ */
+#define ND_BYTES_AVAILABLE_AFTER(p) ND_BYTES_BETWEEN(ndo->ndo_snapend, (p))
+
+/* Check length < minimum for invalid packet with a custom message, format %u */
+#define ND_LCHECKMSG_U(length, minimum, what) \
+if ((length) < (minimum)) { \
+ND_PRINT(" [%s %u < %u]", (what), (length), (minimum)); \
+goto invalid; \
+}
+
+/* Check length < minimum for invalid packet with #length message, format %u */
+#define ND_LCHECK_U(length, minimum) \
+ND_LCHECKMSG_U((length), (minimum), (#length))
+
+/* Check length < minimum for invalid packet with a custom message, format %zu */
+#define ND_LCHECKMSG_ZU(length, minimum, what) \
+if ((length) < (minimum)) { \
+ND_PRINT(" [%s %u < %zu]", (what), (length), (minimum)); \
+goto invalid; \
+}
+
+/* Check length < minimum for invalid packet with #length message, format %zu */
+#define ND_LCHECK_ZU(length, minimum) \
+ND_LCHECKMSG_ZU((length), (minimum), (#length))
+
+#define ND_PRINT(...) (ndo->ndo_printf)(ndo, __VA_ARGS__)
+#define ND_DEFAULTPRINT(ap, length) (*ndo->ndo_default_print)(ndo, ap, length)
+
+extern void ts_print(netdissect_options *, const struct timeval *);
+extern void signed_relts_print(netdissect_options *, int32_t);
+extern void unsigned_relts_print(netdissect_options *, uint32_t);
+
+extern const char *nd_format_time(char *buf, size_t bufsize,
+    const char *format, const struct tm *timeptr);
+
+extern void fn_print_char(netdissect_options *, u_char);
+extern void fn_print_str(netdissect_options *, const u_char *);
+extern u_int nd_printztn(netdissect_options *, const u_char *, u_int, const u_char *);
+extern int nd_printn(netdissect_options *, const u_char *, u_int, const u_char *);
+extern void nd_printjnp(netdissect_options *, const u_char *, u_int);
+
+/*
+ * Flags for txtproto_print().
+ */
+#define RESP_CODE_SECOND_TOKEN	0x00000001	/* response code is second token in response line */
+
+extern void txtproto_print(netdissect_options *, const u_char *, u_int,
+			   const char **, u_int);
+
+#if (defined(__i386__) || defined(_M_IX86) || defined(__X86__) || defined(__x86_64__) || defined(_M_X64)) || \
+    (defined(__arm__) || defined(_M_ARM) || defined(__aarch64__)) || \
+    (defined(__m68k__) && (!defined(__mc68000__) && !defined(__mc68010__))) || \
+    (defined(__ppc__) || defined(__ppc64__) || defined(_M_PPC) || defined(_ARCH_PPC) || defined(_ARCH_PPC64)) || \
+    (defined(__s390__) || defined(__s390x__) || defined(__zarch__)) || \
+    defined(__vax__)
+/*
+ * The processor natively handles unaligned loads, so just use memcpy()
+ * and memcmp(), to enable those optimizations.
+ *
+ * XXX - are those all the x86 tests we need?
+ * XXX - do we need to worry about ARMv1 through ARMv5, which didn't
+ * support unaligned loads, and, if so, do we need to worry about all
+ * of them, or just some of them, e.g. ARMv5?
+ * XXX - are those the only 68k tests we need not to generated
+ * unaligned accesses if the target is the 68000 or 68010?
+ * XXX - are there any tests we don't need, because some definitions are for
+ * compilers that also predefine the GCC symbols?
+ * XXX - do we need to test for both 32-bit and 64-bit versions of those
+ * architectures in all cases?
+ */
+#define UNALIGNED_MEMCPY(p, q, l)	memcpy((p), (q), (l))
+#define UNALIGNED_MEMCMP(p, q, l)	memcmp((p), (q), (l))
+#else
+/*
+ * The processor doesn't natively handle unaligned loads,
+ * and the compiler might "helpfully" optimize memcpy()
+ * and memcmp(), when handed pointers that would normally
+ * be properly aligned, into sequences that assume proper
+ * alignment.
+ *
+ * Do copies and compares of possibly-unaligned data by
+ * calling routines that wrap memcpy() and memcmp(), to
+ * prevent that optimization.
+ */
+extern void unaligned_memcpy(void *, const void *, size_t);
+extern int unaligned_memcmp(const void *, const void *, size_t);
+#define UNALIGNED_MEMCPY(p, q, l)	unaligned_memcpy((p), (q), (l))
+#define UNALIGNED_MEMCMP(p, q, l)	unaligned_memcmp((p), (q), (l))
+#endif
+
+#define PLURAL_SUFFIX(n) \
+	(((n) != 1) ? "s" : "")
+
+extern const char *tok2strary_internal(const char **, int, const char *, int);
+#define	tok2strary(a,f,i) tok2strary_internal(a, sizeof(a)/sizeof(a[0]),f,i)
+
+struct uint_tokary
+{
+	u_int uintval;
+	const struct tok *tokary;
+};
+
+extern const struct tok *uint2tokary_internal(const struct uint_tokary[], const size_t, const u_int);
+#define uint2tokary(a, i) uint2tokary_internal(a, sizeof(a)/sizeof(a[0]), i)
+
+extern if_printer lookup_printer(int);
+
+#define ND_DEBUG {printf(" [%s:%d %s] ", __FILE__, __LINE__, __func__); fflush(stdout);}
+
+/* The DLT printer routines */
+
+extern void ap1394_if_print IF_PRINTER_ARGS;
+extern void arcnet_if_print IF_PRINTER_ARGS;
+extern void arcnet_linux_if_print IF_PRINTER_ARGS;
+extern void atm_if_print IF_PRINTER_ARGS;
+extern void brcm_tag_if_print IF_PRINTER_ARGS;
+extern void brcm_tag_prepend_if_print IF_PRINTER_ARGS;
+extern void bt_if_print IF_PRINTER_ARGS;
+extern void chdlc_if_print IF_PRINTER_ARGS;
+extern void cip_if_print IF_PRINTER_ARGS;
+extern void dsa_if_print IF_PRINTER_ARGS;
+extern void edsa_if_print IF_PRINTER_ARGS;
+extern void enc_if_print IF_PRINTER_ARGS;
+extern void ether_if_print IF_PRINTER_ARGS;
+extern void fddi_if_print IF_PRINTER_ARGS;
+extern void fr_if_print IF_PRINTER_ARGS;
+extern void ieee802_11_if_print IF_PRINTER_ARGS;
+extern void ieee802_11_radio_avs_if_print IF_PRINTER_ARGS;
+extern void ieee802_11_radio_if_print IF_PRINTER_ARGS;
+extern void ieee802_15_4_if_print IF_PRINTER_ARGS;
+extern void ieee802_15_4_tap_if_print IF_PRINTER_ARGS;
+extern void ipfc_if_print IF_PRINTER_ARGS;
+extern void ipnet_if_print IF_PRINTER_ARGS;
+extern void ipoib_if_print IF_PRINTER_ARGS;
+extern void juniper_atm1_if_print IF_PRINTER_ARGS;
+extern void juniper_atm2_if_print IF_PRINTER_ARGS;
+extern void juniper_chdlc_if_print IF_PRINTER_ARGS;
+extern void juniper_es_if_print IF_PRINTER_ARGS;
+extern void juniper_ether_if_print IF_PRINTER_ARGS;
+extern void juniper_frelay_if_print IF_PRINTER_ARGS;
+extern void juniper_ggsn_if_print IF_PRINTER_ARGS;
+extern void juniper_mfr_if_print IF_PRINTER_ARGS;
+extern void juniper_mlfr_if_print IF_PRINTER_ARGS;
+extern void juniper_mlppp_if_print IF_PRINTER_ARGS;
+extern void juniper_monitor_if_print IF_PRINTER_ARGS;
+extern void juniper_ppp_if_print IF_PRINTER_ARGS;
+extern void juniper_pppoe_atm_if_print IF_PRINTER_ARGS;
+extern void juniper_pppoe_if_print IF_PRINTER_ARGS;
+extern void juniper_services_if_print IF_PRINTER_ARGS;
+extern void ltalk_if_print IF_PRINTER_ARGS;
+extern void mfr_if_print IF_PRINTER_ARGS;
+extern void netanalyzer_if_print IF_PRINTER_ARGS;
+extern void netanalyzer_transparent_if_print IF_PRINTER_ARGS;
+extern void nflog_if_print IF_PRINTER_ARGS;
+extern void null_if_print IF_PRINTER_ARGS;
+extern void pflog_if_print IF_PRINTER_ARGS;
+extern void pktap_if_print IF_PRINTER_ARGS;
+extern void ppi_if_print IF_PRINTER_ARGS;
+extern void ppp_bsdos_if_print IF_PRINTER_ARGS;
+extern void ppp_hdlc_if_print IF_PRINTER_ARGS;
+extern void ppp_if_print IF_PRINTER_ARGS;
+extern void pppoe_if_print IF_PRINTER_ARGS;
+extern void prism_if_print IF_PRINTER_ARGS;
+extern void raw_if_print IF_PRINTER_ARGS;
+extern void sl_bsdos_if_print IF_PRINTER_ARGS;
+extern void sl_if_print IF_PRINTER_ARGS;
+extern void sll2_if_print IF_PRINTER_ARGS;
+extern void sll_if_print IF_PRINTER_ARGS;
+extern void sunatm_if_print IF_PRINTER_ARGS;
+extern void symantec_if_print IF_PRINTER_ARGS;
+extern void token_if_print IF_PRINTER_ARGS;
+extern void unsupported_if_print IF_PRINTER_ARGS;
+extern void usb_linux_48_byte_if_print IF_PRINTER_ARGS;
+extern void usb_linux_64_byte_if_print IF_PRINTER_ARGS;
+extern void vsock_if_print IF_PRINTER_ARGS;
+
+/*
+ * Structure passed to some printers to allow them to print
+ * link-layer address information if ndo_eflag isn't set
+ * (because they are for protocols that don't have their
+ * own addresses, so that we'd want to report link-layer
+ * address information).
+ *
+ * This contains a pointer to an address and a pointer to a routine
+ * to which we pass that pointer in order to get a string.
+ */
+struct lladdr_info {
+	const char *(*addr_string)(netdissect_options *, const u_char *);
+	const u_char *addr;
+};
+
+/* The printer routines. */
+
+extern void aarp_print(netdissect_options *, const u_char *, u_int);
+extern int ah_print(netdissect_options *, const u_char *);
+extern void ahcp_print(netdissect_options *, const u_char *, u_int);
+extern void aodv_print(netdissect_options *, const u_char *, u_int, int);
+extern void aoe_print(netdissect_options *, const u_char *, const u_int);
+extern int  arista_ethertype_print(netdissect_options *,const u_char *, u_int);
+extern void arp_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void ascii_print(netdissect_options *, const u_char *, u_int);
+extern void atalk_print(netdissect_options *, const u_char *, u_int);
+extern void atm_print(netdissect_options *, u_int, u_int, u_int, const u_char *, u_int, u_int);
+extern void babel_print(netdissect_options *, const u_char *, u_int);
+extern void bcm_li_print(netdissect_options *, const u_char *, u_int);
+extern void beep_print(netdissect_options *, const u_char *, u_int);
+extern void bfd_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void bgp_print(netdissect_options *, const u_char *, u_int);
+extern const char *bgp_vpn_rd_print(netdissect_options *, const u_char *);
+extern void bootp_print(netdissect_options *, const u_char *, u_int);
+extern void calm_fast_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *);
+extern void carp_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void cdp_print(netdissect_options *, const u_char *, u_int);
+extern void cfm_print(netdissect_options *, const u_char *, u_int);
+extern u_int chdlc_print(netdissect_options *, const u_char *, u_int);
+extern void cisco_autorp_print(netdissect_options *, const u_char *, u_int);
+extern void cnfp_print(netdissect_options *, const u_char *);
+extern void dccp_print(netdissect_options *, const u_char *, const u_char *, u_int);
+extern void decnet_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void dhcp6_print(netdissect_options *, const u_char *, u_int);
+extern int dstopt_process(netdissect_options *, const u_char *);
+extern void dtp_print(netdissect_options *, const u_char *, u_int);
+extern void dvmrp_print(netdissect_options *, const u_char *, u_int);
+extern void eap_print(netdissect_options *, const u_char *, u_int);
+extern void eapol_print(netdissect_options *, const u_char *);
+extern void egp_print(netdissect_options *, const u_char *, u_int);
+extern void eigrp_print(netdissect_options *, const u_char *, u_int);
+extern void esp_print(netdissect_options *, const u_char *, u_int, const u_char *, u_int, int, u_int);
+extern u_int ether_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), const u_char *);
+extern u_int ether_switch_tag_print(netdissect_options *, const u_char *, u_int, u_int, void (*)(netdissect_options *, const u_char *), u_int);
+extern int ethertype_print(netdissect_options *, u_short, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *);
+extern u_int fddi_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void forces_print(netdissect_options *, const u_char *, u_int);
+extern u_int fr_print(netdissect_options *, const u_char *, u_int);
+extern int frag6_print(netdissect_options *, const u_char *, const u_char *);
+extern void ftp_print(netdissect_options *, const u_char *, u_int);
+extern void geneve_print(netdissect_options *, const u_char *, u_int);
+extern void geonet_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *);
+extern void gre_print(netdissect_options *, const u_char *, u_int);
+extern int hbhopt_process(netdissect_options *, const u_char *, int *, uint32_t *);
+extern void hex_and_ascii_print(netdissect_options *, const char *, const u_char *, u_int);
+extern void hex_print(netdissect_options *, const char *ident, const u_char *cp, u_int);
+extern void hex_print_with_offset(netdissect_options *, const char *ident, const u_char *cp, u_int, u_int);
+extern void hncp_print(netdissect_options *, const u_char *, u_int);
+extern void hsrp_print(netdissect_options *, const u_char *, u_int);
+extern void http_print(netdissect_options *, const u_char *, u_int);
+extern void icmp6_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
+extern void icmp_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
+extern u_int ieee802_15_4_print(netdissect_options *, const u_char *, u_int);
+extern u_int ieee802_11_radio_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void igmp_print(netdissect_options *, const u_char *, u_int);
+extern void igrp_print(netdissect_options *, const u_char *, u_int);
+extern void ip6_print(netdissect_options *, const u_char *, u_int);
+extern void ipN_print(netdissect_options *, const u_char *, u_int);
+extern void ip_print(netdissect_options *, const u_char *, u_int);
+extern void ipcomp_print(netdissect_options *, const u_char *);
+extern void ipx_netbios_print(netdissect_options *, const u_char *, u_int);
+extern void ipx_print(netdissect_options *, const u_char *, u_int);
+extern void isakmp_print(netdissect_options *, const u_char *, u_int, const u_char *);
+extern void isakmp_rfc3948_print(netdissect_options *, const u_char *, u_int, const u_char *, int, int, u_int);
+extern void isoclns_print(netdissect_options *, const u_char *, u_int);
+extern void krb_print(netdissect_options *, const u_char *);
+extern void l2tp_print(netdissect_options *, const u_char *, u_int);
+extern void lane_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void ldp_print(netdissect_options *, const u_char *, u_int);
+extern void lisp_print(netdissect_options *, const u_char *, u_int);
+extern u_int llap_print(netdissect_options *, const u_char *, u_int);
+extern int llc_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *);
+extern void lldp_print(netdissect_options *, const u_char *, u_int);
+extern void lmp_print(netdissect_options *, const u_char *, u_int);
+extern void loopback_print(netdissect_options *, const u_char *, u_int);
+extern void lspping_print(netdissect_options *, const u_char *, u_int);
+extern void lwapp_control_print(netdissect_options *, const u_char *, u_int, int);
+extern void lwapp_data_print(netdissect_options *, const u_char *, u_int);
+extern void lwres_print(netdissect_options *, const u_char *, u_int);
+extern void m3ua_print(netdissect_options *, const u_char *, const u_int);
+extern int macsec_print(netdissect_options *, const u_char **,
+			 u_int *, u_int *, u_int *, const struct lladdr_info *,
+			 const struct lladdr_info *);
+extern u_int mfr_print(netdissect_options *, const u_char *, u_int);
+extern void mobile_print(netdissect_options *, const u_char *, u_int);
+extern int mobility_print(netdissect_options *, const u_char *, const u_char *);
+extern void mpcp_print(netdissect_options *, const u_char *, u_int);
+extern void mpls_print(netdissect_options *, const u_char *, u_int);
+extern int mptcp_print(netdissect_options *, const u_char *, u_int, u_char);
+extern void msdp_print(netdissect_options *, const u_char *, u_int);
+extern void msnlb_print(netdissect_options *, const u_char *);
+extern void nbt_tcp_print(netdissect_options *, const u_char *, u_int);
+extern void nbt_udp137_print(netdissect_options *, const u_char *, u_int);
+extern void nbt_udp138_print(netdissect_options *, const u_char *, u_int);
+extern void netbeui_print(netdissect_options *, u_short, const u_char *, u_int);
+extern void nfsreply_print(netdissect_options *, const u_char *, u_int, const u_char *);
+extern void nfsreply_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *);
+extern void nfsreq_noaddr_print(netdissect_options *, const u_char *, u_int, const u_char *);
+extern const u_char *fqdn_print(netdissect_options *, const u_char *, const u_char *);
+extern void domain_print(netdissect_options *, const u_char *, u_int, int, int);
+extern void nsh_print(netdissect_options *, const u_char *, u_int);
+extern void ntp_print(netdissect_options *, const u_char *, u_int);
+extern void oam_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void olsr_print(netdissect_options *, const u_char *, u_int, int);
+extern void openflow_print(netdissect_options *, const u_char *, u_int);
+extern void ospf6_print(netdissect_options *, const u_char *, u_int);
+extern void ospf_print(netdissect_options *, const u_char *, u_int, const u_char *);
+extern int ospf_grace_lsa_print(netdissect_options *, const u_char *, u_int);
+extern int ospf_te_lsa_print(netdissect_options *, const u_char *, u_int);
+extern void otv_print(netdissect_options *, const u_char *, u_int);
+extern void pgm_print(netdissect_options *, const u_char *, u_int, const u_char *);
+extern void pim_print(netdissect_options *, const u_char *, u_int, const u_char *);
+extern void pimv1_print(netdissect_options *, const u_char *, u_int);
+extern u_int ppp_print(netdissect_options *, const u_char *, u_int);
+extern u_int pppoe_print(netdissect_options *, const u_char *, u_int);
+extern void pptp_print(netdissect_options *, const u_char *);
+extern void ptp_print(netdissect_options *, const u_char *, u_int);
+extern int print_unknown_data(netdissect_options *, const u_char *, const char *, u_int);
+extern const char *q922_string(netdissect_options *, const u_char *, u_int);
+extern void q933_print(netdissect_options *, const u_char *, u_int);
+extern void radius_print(netdissect_options *, const u_char *, u_int);
+extern void resp_print(netdissect_options *, const u_char *, u_int);
+extern void rip_print(netdissect_options *, const u_char *, u_int);
+extern void ripng_print(netdissect_options *, const u_char *, unsigned int);
+extern void rpki_rtr_print(netdissect_options *, const u_char *, u_int);
+extern void rsvp_print(netdissect_options *, const u_char *, u_int);
+extern int rt6_print(netdissect_options *, const u_char *, const u_char *);
+extern void rtl_print(netdissect_options *, const u_char *, u_int, const struct lladdr_info *, const struct lladdr_info *);
+extern void rtsp_print(netdissect_options *, const u_char *, u_int);
+extern void rx_print(netdissect_options *, const u_char *, u_int, uint16_t, uint16_t, const u_char *);
+extern void sctp_print(netdissect_options *, const u_char *, const u_char *, u_int);
+extern void sflow_print(netdissect_options *, const u_char *, u_int);
+extern void ssh_print(netdissect_options *, const u_char *, u_int);
+extern void sip_print(netdissect_options *, const u_char *, u_int);
+extern void slow_print(netdissect_options *, const u_char *, u_int);
+extern void smb_tcp_print(netdissect_options *, const u_char *, u_int);
+extern void smtp_print(netdissect_options *, const u_char *, u_int);
+extern int snap_print(netdissect_options *, const u_char *, u_int, u_int, const struct lladdr_info *, const struct lladdr_info *, u_int);
+extern void snmp_print(netdissect_options *, const u_char *, u_int);
+extern void stp_print(netdissect_options *, const u_char *, u_int);
+extern void sunrpc_print(netdissect_options *, const u_char *, u_int, const u_char *);
+extern void syslog_print(netdissect_options *, const u_char *, u_int);
+extern void tcp_print(netdissect_options *, const u_char *, u_int, const u_char *, int);
+extern void telnet_print(netdissect_options *, const u_char *, u_int);
+extern void tftp_print(netdissect_options *, const u_char *, u_int);
+extern void timed_print(netdissect_options *, const u_char *);
+extern void tipc_print(netdissect_options *, const u_char *, u_int, u_int);
+extern u_int token_print(netdissect_options *, const u_char *, u_int, u_int);
+extern void udld_print(netdissect_options *, const u_char *, u_int);
+extern void udp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, u_int);
+extern int vjc_print(netdissect_options *, const u_char *, u_short);
+extern void vqp_print(netdissect_options *, const u_char *, u_int);
+extern void vrrp_print(netdissect_options *, const u_char *, u_int, const u_char *, int, int);
+extern void vtp_print(netdissect_options *, const u_char *, const u_int);
+extern void vxlan_gpe_print(netdissect_options *, const u_char *, u_int);
+extern void vxlan_print(netdissect_options *, const u_char *, u_int);
+extern void wb_print(netdissect_options *, const u_char *, u_int);
+extern void whois_print(netdissect_options *, const u_char *, u_int);
+extern void zep_print(netdissect_options *, const u_char *, u_int);
+extern void zephyr_print(netdissect_options *, const u_char *, u_int);
+extern void zmtp1_print(netdissect_options *, const u_char *, u_int);
+extern void zmtp1_datagram_print(netdissect_options *, const u_char *, const u_int);
+extern void someip_print(netdissect_options *, const u_char *, const u_int);
+
+/* checksum routines */
+extern void init_checksum(void);
+extern uint16_t verify_crc10_cksum(uint16_t, const u_char *, int);
+extern uint16_t create_osi_cksum(const uint8_t *, int, int);
+
+struct cksum_vec {
+	const uint8_t	*ptr;
+	int		len;
+};
+extern uint16_t in_cksum(const struct cksum_vec *, int);
+extern uint16_t in_cksum_shouldbe(uint16_t, uint16_t);
+
+/* IP protocol demuxing routines */
+extern void ip_demux_print(netdissect_options *, const u_char *, u_int, u_int, int, u_int, uint8_t, const u_char *);
+
+extern uint16_t nextproto4_cksum(netdissect_options *, const struct ip *, const uint8_t *, u_int, u_int, uint8_t);
+
+/* in print-ip6.c */
+extern uint16_t nextproto6_cksum(netdissect_options *, const struct ip6_hdr *, const uint8_t *, u_int, u_int, uint8_t);
+
+/* Utilities */
+extern void nd_print_trunc(netdissect_options *);
+extern void nd_print_protocol(netdissect_options *);
+extern void nd_print_protocol_caps(netdissect_options *);
+extern void nd_print_invalid(netdissect_options *);
+
+extern int mask2plen(uint32_t);
+extern int mask62plen(const u_char *);
+
+extern const char *dnnum_string(netdissect_options *, u_short);
+
+extern int decode_prefix4(netdissect_options *, const u_char *, u_int, char *, size_t);
+extern int decode_prefix6(netdissect_options *, const u_char *, u_int, char *, size_t);
+
+extern void esp_decodesecret_print(netdissect_options *);
+extern int esp_decrypt_buffer_by_ikev2_print(netdissect_options *, int,
+					     const u_char spii[8],
+					     const u_char spir[8],
+					     const u_char *, const u_char *);
+
+#endif  /* netdissect_h */