freepascal.compiler/packages/pcap/src/pcap.pp

{$IFNDEF FPC_DOTTEDUNITS}
unit Pcap;
{$ENDIF FPC_DOTTEDUNITS}

  { -*- Mode: c; tab-width: 8; indent-tabs-mode: 1; c-basic-offset: 8; -*-  }
  {
   * Copyright (c) 1993, 1994, 1995, 1996, 1997
   *	The Regents of the University of California.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by the Computer Systems
   *	Engineering Group at Lawrence Berkeley Laboratory.
   * 4. Neither the name of the University nor of the Laboratory may be used
   *    to endorse or promote products derived from this software without
   *    specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * $FreeBSD: src/contrib/libpcap/pcap.h,v 1.11 2005/07/11 03:43:25 sam Exp $
   * @(#) $Header: /tcpdump/master/libpcap/pcap.h,v 1.52 2004/12/18 08:52:11 guy Exp $ (LBL)
    }

interface

{$IFDEF FPC_DOTTEDUNITS}
uses
  {$ifdef Unix}
  UnixApi.Types,UnixApi.Base,
  {$endif}
  {$ifdef Windows}
  WinApi.Winsock, WinApi.Windows,
  {$endif}
  System.Types, System.Net.Sockets;
{$ELSE FPC_DOTTEDUNITS}
uses
  {$ifdef UNIX}
  UnixType,BaseUnix,
  {$endif}
  {$ifdef Windows}
  WinSock, Windows,
  {$endif}
  Types, Sockets;
{$ENDIF FPC_DOTTEDUNITS}

{$IFDEF FPC}
  {$PACKRECORDS C}
  {$ifndef NO_SMART_LINK}
    {$smartlink on}
  {$endif}
{$ENDIF}

  const
     {$ifdef unix}
     {$linklib c}
     PCAP_LIB_NAME = 'libpcap';
     {$endif}
     {$ifdef WINDOWS}
     PCAP_LIB_NAME = 'wpcap';
     {$endif}
     PCAP_VERSION_MAJOR = 2;
     PCAP_VERSION_MINOR = 4;
     PCAP_ERRBUF_SIZE = 256;
  { interface is loopback  }
     PCAP_IF_LOOPBACK = $00000001;
  {
   * The first record in the file contains saved values for some
   * of the flags used in the printout phases of tcpdump.
   * Many fields here are 32 bit ints so compilers won't insert unwanted
   * padding; these files need to be interchangeable across architectures.
   *
   * Do not change the layout of this structure, in any way (this includes
   * changes that only affect the length of fields in this structure).
   *
   * Also, do not change the interpretation of any of the members of this
   * structure, in any way (this includes using values other than
   * LINKTYPE_ values, as defined in "savefile.c", in the "linktype"
   * field).
   *
   * Instead:
   *
   *	introduce a new structure for the new format, if the layout
   *	of the structure changed;
   *
   *	send mail to "[email protected]", requesting a new
   *	magic number for your new capture file format, and, when
   *	you get the new magic number, put it in "savefile.c";
   *
   *	use that magic number for save files with the changed file
   *	header;
   *
   *	make the code in "savefile.c" capable of reading files with
   *	the old file header as well as files with the new file header
   *	(using the magic number to determine the header format).
   *
   * Then supply the changes to "[email protected]", so that future
   * versions of libpcap and programs that use it (such as tcpdump) will
   * be able to read your new capture file format.
    }
  { gmt to local correction  }
  { accuracy of timestamps  }
  { max length saved portion of each pkt  }
  { data link type (LINKTYPE_*)  }
  type
     PPLongint = ^PLongint;
     PPcap_File_Header = ^TPcap_File_Header;
     TPcap_File_Header = record
       magic : DWord;
       version_major : Word;
       version_minor : Word;
       thiszone : Longint;
       sigfigs : DWord;
       snaplen : DWord;
       linktype : DWord;
     end;

     PBPF_Insn = ^TBPF_Insn;
     TBPF_Insn = record
       code: Word;
       jt: Byte;
       jf: Byte;
       k: DWord;
     end;

     PBPF_Program = ^TBPF_Program;
     TBPF_Program = record
       bf_len: PtrInt;
       bf_insns: PBPF_Insn;
     end;

     PDirection = ^TDirection;
     TDirection = (D_INOUT, D_IN, D_OUT);
  {
   * Each packet in the dump file is prepended with this generic header.
   * This gets around the problem of different headers for different
   * packet interfaces.
    }
  { time stamp  }
  { length of portion present  }
  { length this packet (off wire)  }
     PPPcap_Pkthdr = ^PPcap_Pkthdr;
     PPcap_Pkthdr = ^TPcap_Pkthdr;
     TPcap_Pkthdr = record
       ts : TTimeVal;
       caplen : DWord;
       len : DWord;
     end;

  {
   * As returned by the pcap_stats()
    }
  { number of packets received  }
  { number of packets dropped  }
  { drops by interface XXX not yet supported  }

     PPcap_Stat = ^TPcap_Stat;
     TPcap_Stat = record
       ps_recv   : DWord;
       ps_drop   : DWord;
       ps_ifdrop : DWord;
       bs_capt   : DWord;
     end;

  {
   * Representation of an interface address.
    }
  { address  }
  { netmask for that address  }
  { broadcast address for that address  }
  { P2P destination address for that address  }

     PPcap_Addr = ^TPcap_Addr;
     TPcap_Addr = record
       next : PPcap_Addr;
       addr : PSockAddr;
       netmask : PSockAddr;
       broadaddr : PSockAddr;
       dstaddr : PSockAddr;
     end;

  {
   * Item in a list of interfaces.
    }
  { name to hand to "pcap_open_live()"  }
  { textual description of interface, or NULL  }
  { PCAP_IF_ interface flags  }
     PPPcap_If = ^PPcap_If;
     PPcap_If = ^TPcap_If;
     TPcap_If = record
       next : PPcap_If;
       name : PAnsiChar;
       description : PAnsiChar;
       addresses : PPcap_Addr;
       flags : DWord;
     end;
     
  { obfuscated C types }
     PPcap = ^TPcap;
     TPcap = record end;

     PPcapDumper = ^TPcapDumper;
     TPcapDumper = record end;

     TPcapHandler = procedure (para1: PAnsiChar; Header: PPcap_Pkthdr; Data: PAnsiChar); cdecl;

  function pcap_lookupdev(ErrBuf: PAnsiChar): PAnsiChar; cdecl; external PCAP_LIB_NAME;

  function pcap_lookupnet(Device: PAnsiChar; NetP: PDword;
                          MaskP: PDword; ErrBuf: PAnsiChar): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_open_live(Device : PAnsiChar; SnapLen: Longint; Promisc: Longint;
                          to_ms: Longint; ebuf: PAnsiChar): PPcap; cdecl; external PCAP_LIB_NAME;

  function pcap_open_dead(LinkType: Longint; SnapLen: Longint): PPcap; cdecl; external PCAP_LIB_NAME;

  function pcap_open_offline(FileName: PAnsiChar; ErrBuf: PAnsiChar): PPcap; cdecl; external PCAP_LIB_NAME;

//  function pcap_fopen_offline(para1:PFILE; para2:PAnsiChar): PPcap; cdecl; external PCAP_LIB_NAME;

  procedure pcap_close(p :PPcap); cdecl; external PCAP_LIB_NAME;

  function pcap_loop(p: PPcap; cnt: Longint; Callback: TPCapHandler; User: PAnsiChar): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_dispatch(p: PPcap; cnt: Longint; Callback: TPCapHandler; User: PAnsiChar): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_next(para1: PPcap; para2:PPcap_Pkthdr): PAnsiChar; cdecl; external PCAP_LIB_NAME;

  function pcap_next_ex(para1: PPcap; para2:PPPcap_Pkthdr; para3:PPAnsiChar): Longint; cdecl; external PCAP_LIB_NAME;

  procedure pcap_breakloop(para1:PPcap); cdecl; external PCAP_LIB_NAME;

  function pcap_stats(para1: PPcap; para2:PPcap_Stat): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_setfilter(para1: PPcap; para2:PBPF_Program): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_setdirection(para1: PPcap; para2:TDirection): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_getnonblock(para1: PPcap; para2:PAnsiChar): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_setnonblock(para1: PPcap; para2: Longint; para3:PAnsiChar): Longint; cdecl; external PCAP_LIB_NAME;

  procedure pcap_perror(para1: PPcap; para2:PAnsiChar); cdecl; external PCAP_LIB_NAME;

  function pcap_inject(para1: PPcap; para2:pointer; para3: TSize): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_sendpacket(para1: PPcap; para2: PAnsiChar; para3:Longint): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_strerror(para1:Longint): PAnsiChar; cdecl; external PCAP_LIB_NAME;

  function pcap_geterr(para1:PPcap): PAnsiChar; cdecl; external PCAP_LIB_NAME;

  function pcap_compile(para1: PPcap; para2:PBPF_Program; para3: PAnsiChar; para4: Longint; para5:DWord): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_compile_nopcap(para1: Longint; para2: Longint; para3:PBPF_Program; para4: PAnsiChar; para5: Longint;
             para6:DWord): Longint; cdecl; external PCAP_LIB_NAME;

  procedure pcap_freecode(para1:PBPF_Program); cdecl; external PCAP_LIB_NAME;

  function pcap_datalink(para1:PPcap): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_list_datalinks(para1: PPcap; para2:PPLongint): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_set_datalink(para1: PPcap; para2:Longint): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_datalink_name_to_val(para1:PAnsiChar): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_datalink_val_to_name(para1:Longint): PAnsiChar; cdecl; external PCAP_LIB_NAME;

  function pcap_datalink_val_to_description(para1:Longint): PAnsiChar; cdecl; external PCAP_LIB_NAME;

  function pcap_snapshot(para1:PPcap): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_is_swapped(para1:PPcap): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_major_version(para1:PPcap): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_minor_version(para1:PPcap): Longint; cdecl; external PCAP_LIB_NAME;

  { XXX  }
//  function pcap_file(para1:PPcap):PFILE; cdecl; external PCAP_LIB_NAME;

  function pcap_fileno(para1:PPcap): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_dump_open(para1: PPcap; para2:PAnsiChar):PPCapDumper; cdecl; external PCAP_LIB_NAME;

//  function pcap_dump_fopen(para1: PPcap; fp:PFILE):PPCapDumper; cdecl; external PCAP_LIB_NAME;

//  function pcap_dump_file(para1:PPCapDumper):PFILE; cdecl; external PCAP_LIB_NAME;

  function pcap_dump_ftell(para1:PPCapDumper): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_dump_flush(para1:PPCapDumper): Longint; cdecl; external PCAP_LIB_NAME;

  procedure pcap_dump_close(para1:PPCapDumper); cdecl; external PCAP_LIB_NAME;

  procedure pcap_dump(para1: PAnsiChar; para2:PPcap_Pkthdr; para3:PAnsiChar); cdecl; external PCAP_LIB_NAME;

  function pcap_findalldevs(para1:PPPcap_If; para2:PAnsiChar): Longint; cdecl; external PCAP_LIB_NAME;

  procedure pcap_freealldevs(para1:PPcap_If); cdecl; external PCAP_LIB_NAME;

  function pcap_lib_version: PAnsiChar; cdecl; external PCAP_LIB_NAME;

  { XXX this guy lives in the bpf tree  }
  function bpf_filter(para1:Pbpf_insn; para2: PAnsiChar; para3:PtrInt; para4:PtrInt):PtrInt; cdecl; external PCAP_LIB_NAME;

  function bpf_validate(f:Pbpf_insn; len:Longint): Longint; cdecl; external PCAP_LIB_NAME;

  function bpf_image(para1:Pbpf_insn; para2:Longint): PAnsiChar; cdecl; external PCAP_LIB_NAME;

  procedure bpf_dump(para1:PBPF_Program; para2:Longint); cdecl; external PCAP_LIB_NAME;

{$ifdef WINDOWS}

  function pcap_setbuff(p: PPcap; dim:Longint): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_setmode(p: PPcap; mode:Longint): Longint; cdecl; external PCAP_LIB_NAME;

  function pcap_setmintocopy(p: PPcap; size:Longint): Longint; cdecl; external PCAP_LIB_NAME;

{$endif}

{$ifdef unix}

  function pcap_get_selectable_fd(para1:PPcap): Longint; cdecl; external PCAP_LIB_NAME;

{$endif}

implementation


end.