ip地址的隐藏

ip地址的隐藏 IPµØÖ?µÄÒþ?Ø Ò???Ç?ÑÔ ??????ÎÄÖ?Òª?éÉÜÈçºÎÔÚ?ÌÐòÖÐʵÏÖIPµØÖ?µÄÒþ?Ø??ÆäʵÕâƪ??Î???ËãÎÒÐ?µÄ??ÆäÖÐ??IPÍ??á???????ÖÎÒÀÁµÃ?ò×Ö???Ê??ÖÆ??Õ?ÌùÁË?Â?À???͵ÄÎÄÕÂ??ÏÈ˵ÉùÐ?Ð????úÂë???Ö?Î??ÁËÍâ?ú?ÌÐòxesÐ?µÄÒ??ö?ÌÐò??ËùÒÔÕâÖ?ÊÇÑ?Ï??ý?ÌÖеÄÒ??ö???úÆ????ÈÈ??ÌÐòÒÑ?,×öºÃÁË???ÍË??ã?ÅÉÏÀ??ú?ó?ÒÒ?Æð??Á?????Í?Ìá?ß?É????ÎÄÖ????ýÏë˵Ã?Ò?ÏÂIPÊý?ݵÄ?á??ºÍ??ËÍ?úÖÆ??Èç?ûÓÐÈË?ÑËü?ÄΪ?ñÒâIP???????ß??ºó?û×Ô?º?? ?????þ??IPÍ??á?? ????ÎÒÃÇÖªµÀ??TCP/IPÍøÂçÊý?ÝÈ???ÊÇÍ??ý?â×?ÔÚIPÊý?Ý?üÖÐÔÚInternetÍøÉÏ??Ë͵Ä??Ò??ÍÊÇ?â×???Á?ÆðÒ??ö?üº?IPÍ?ºÍÊý?ݵÄIPÊý?Ý????Ò??ãÀ?˵??ÍøÂçÈí?þ×ÜÊÇÒÔ?à?ö32Î?×Ö?úÉúIPÍ?????Ê??ØÐëÓÃ???ÓµÄ0Ìî?äIPÍ???IPÍ??üº?ÁË??ÊäIPÊý?Ý?üÖÐ?â×?Êý?ݵÄËùÓÐ?ØÒªÐÅÏ???IPÍ?µÄÊý?Ý?á??ºÍÃèÊöÈçÏÂ?º ?????ÉÔ? ???È(Bit) ÃèÊö ????Version 4 IPÍ?µÄ?æ??ºÅ??Ä?Ç?ÊÇIPv4??×îÐÂÊÇIPv6 ????Header Length 4 IPÍ?µÄ???È??ÈôÃ?ÓÐÌØÊâÑ?Ôñ??IPÍ?×ÜÊÇ20×Ö?Ú?? ????Type of Service 8 ?þÎñÀàÐÍ????ÒåÁËÊý?Ý??ÊäµÄÓÅÏÈ????ÑÓ?Ù??ÍÌÍÂÁ?ºÍ?É??ÐÔµÈÌØÐÔ ????Total Packet Length 16 IP?üµÄ???È??ÈôÃ?ÓÐÌØÊâÑ?Ïî??Ò??ãΪ20×Ö?Ú?? ????Identification 16 IP?ü?êÊ???Ö??úÊ?ÓÃËüÎ?Ò?È???Ã??ö??Ë͵ÄÊý?Ý?? ????Flag 3 IPÊý?Ý?Ö?î?êÖ? ????Fragment Offset 13 IPÊý?Ý?Ö?îÆ?ÒÆ ????Time to Live 8 Êý?Ý??ÔÚÍøÂçÉϵÄ?æ?îÊ??ä??Ã?Í??ýÒ??öÂ?ÓÉÆ????ÃÊýÖµ?õÒ? ????Protocol 8 TCP/IPÐ,ÒéÀàÐÍ???ÈÈç?ºICMPΪ1??IGMPΪ2??TCPΪ6??UDPΪ17µÈ ????Header Checksum 16 Í????ìÑéºÍ ????Source IP Address 32 Ô?IPµØÖ? ????Destination IP Address 32 Ä?µÄIPµØÖ? ????Other ? ÆäËûÑ?Ïî ????Data ? Êý?Ý ????ʵÏÖ×Ô?º??ÒåµÄIPÍ?ÊÇÒ??þ?Ç??ÓÐÒâÒåµÄÊÂÇé???ÈÈç??Í??ý?Ä?äIPÍ?ÀïµÄTOSµÄÓÅÏÈ??ºÍTTL??Äã?ÉÒÔÊ?×Ô?ºµÄÊý?Ý?üÓÐ?üÇ?µÄ??ÊäÄÜÁ?ºÍÊÙÃü??Í??ýÐÞ?ÄIPÍ?ÀïµÄÔ?IPµØÖ??Í?ÉÒÔÒþ?Ø×Ô?º?úÆ?µÄIPµØÖ?µÈµÈ??ÏóÖøÃû?????ÌÐò??ÀáµÎTearDrop???ÍÊÇÍ??ý?ÊÒâÖÆÔìϵÍ???ÄÜ??ÀíµÄ?ÖÆ?IP?ü?øʵÏÖµÄ????ÓÐSYN FlooderºÍUDP Flooder?ÍÊÇÍ??ý?úÉúËæ?úÔ?IPʵÏÖÆÛÆ,µÄ?? ????Èý??ʵÏÖÔ,Àí ????Ò??ãÀ?˵??×Ô??ÒåIPÍ?ÊÇÍ??ýÊ?ÓÃsocketµÄ?âº?Êýsetsockopt()µÄÑ?ÏîIP_HDRINCLÀ?ʵÏÖµÄ?????ÜÕâÔÚunixºÍlinuxÆ?Ì?ÉϺÜÈÝÒ×ʵÏÖ??µ?Òź?µÄÊÇÔÚWindowsÆ?Ì?µÄWinsock1.1ºÍWinsock2.0º?Êý?âÀïsetsockopt()??Ö??ÖIP_HDRINCLÑ?Ïî??ËùÒÔÔÚWindows 9x/NTÀïÊÇÎÞ??Í??ýWinsockº?Êý?âÀ?ʵÏÖIPÍ?×Ô??ÒåµÄ??µ?È??ÉÒÔÍ??ý?àÐ?ÐéÄâÉè??Çý???ÌÐòÀ?ʵÏÖ?????ý?È?Ï??ÔÓ??µ?Windows 2000µÄ?öÏÖ?òÆÆÁËÕâÖÖ?ÖÃæ??Windows2000µÄWinsock2.2º?Êý?âÀïÈ?ÃæÖ??Ösetsockopt()µÄÑ?ÏîIP_HDRINCL??Ê?µÃÎÒÃÇÇáËÉ?Í?ÉÒÔʵÏÖ×Ô??ÒåµÄIPÍ???ʵÏÖ????ÈçÏÂ?º ????ËÄ???úÂë???Ö ????{ ????1. ???ÌÐòÖ?ÄÜÔËÐÐÓÚ Window 2000. ????2. Äã?ØÐëÓÐ Administrator È?ÏÞ. ????3. ?ÌÐòÐèÒªÓõ?Ò??ö button ºÍÒ??ö memo. ????---------------------------------------------------------------------- ????ÔËÐÐ?ÌÐòÇ???Çë?ù?Ý×Ô?ºµÄÐèÒª?Ä?ä SrcIP??SrcPort??DestIPºÍDestPortµÄÖµ ????---------------------------------------------------------------------- ????Èç?ûÄã??????ÒÔÏÂ?úÂë??×îºÃ??ÒªÈ?ÔËÐÐËü?? ????-------------------------------------------------------------- -------- ????} ????unit Unit1; ????interface ????uses ????Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs, ????StdCtrls, OleCtrls, Registry; ????Const ????SrcIP = '123.123.123.1';//??ËÍ??IPµØÖ? ????SrcPort = 1234; //??ËÍ???Ë?Ú ????DestIP = '127.0.0.2'; //Ä?µÄIPµØÖ? ????DestPort = 4321; //Ä?µÄ?Ë?Ú ????Max_Message = 4068; ????Max_Packet = 4096; ????type ????TPacketBuffer = Array[0..Max_Packet-1] of byte; ????TForm1 = class(TForm) ????Button1: TButton; ????Memo1: TMemo; ????procedure Button1Click(Sender: TObject); ????private ????{ Private declarations } ????public ????{ Public declarations } ????procedure SendIt; ????end; ????// IP Í? ????type ????T_IP_Header = record ????ip_verlen : Byte; ????ip_tos : Byte; ????ip_totallength : Word; ????ip_id : Word; ????ip_offset : Word; ????ip_ttl : Byte; ????ip_protocol : Byte; ????ip_checksum : Word; ????ip_srcaddr : LongWord; ????ip_destaddr : LongWord; ????end; ????// UDP Í? ????Type ????T_UDP_Header = record ????src_portno : Word; ????dst_portno : Word; ????udp_length : Word; ????udp_checksum : Word; ????end; ????// Ò?Ð? Winsock 2 µÄÀàÐÍÉùÃ? ????u_char = Char; ????u_short = Word; ????u_int = Integer; ????u_long = Longint; ????SunB = packed record ????s_b1, s_b2, s_b3, s_b4: u_char; ????end; ????SunW = packed record ????s_w1, s_w2: u_short; ????end; ????in_addr = record ????case integer of ????0: (S_un_b: SunB); ????1: (S_un_w: SunW); ????2: (S_addr: u_long); ????end; ????TInAddr = in_addr; ????Sockaddr_in = record ????case Integer of ????0: (sin_family: u_short; ????sin_port: u_short; ????sin_addr: TInAddr; ????sin_zero: array[0..7] of Char); ????1: (sa_family: u_short; ????sa_data: array[0..13] of Char) ????end; ????TSockAddr = Sockaddr_in; ????TSocket = u_int; ????const ????WSADESCRIPTION_LEN = 256; ????WSASYS_STATUS_LEN = 128; ????type ????PWSAData = ^TWSAData; ????WSAData = record // WSDATA ????wVersion: Word; ????wHighVersion: Word; ????szDescription: array[0..WSADESCRIPTION_LEN] of Char; ????szSystemStatus: array[0..WSASYS_STATUS_LEN] of Char; ????iMaxSockets: Word; ????iMaxUdpDg: Word; ????lpVendorInfo: PChar; ????end; ????TWSAData = WSAData; ????//??ÒåÒ?Ð? winsock 2 º?Êý ????function closesocket(s: TSocket): Integer; stdcall; ????function socket(af, Struct, protocol: Integer): TSocket; stdcall; ????function sendto(s: TSocket; var Buf; len, flags: Integer; var addrto: TSockAddr; ????tolen: Integer): Integer; stdcall;{} ????function setsockopt(s: TSocket; level, optname: Integer; optval: PChar; ????optlen: Integer): Integer; stdcall; ????function inet_addr(cp: PChar): u_long; stdcall; {PInAddr;} { TInAddr } ????function htons(hostshort: u_short): u_short; stdcall; ????function WSAGetLastError: Integer; stdcall; ????function WSAStartup(wVersionRequired: word; var WSData: TWSAData): Integer; stdcall; ????function WSACleanup: Integer; stdcall; ????const ????AF_INET = 2; // internetwork: UDP, TCP, etc. ????IP_HDRINCL = 2; // IP Header Include ????SOCK_RAW = 3; // raw-protocol interface ????IPPROTO_IP = 0; // dummy for IP ????IPPROTO_TCP = 6; // tcp ????IPPROTO_UDP = 17; // user datagram protocol ????IPPROTO_RAW = 255; // raw IP packet ????INVALID_SOCKET = TSocket(NOT(0)); ????SOCKET_ERROR = -1; ????var ????Form1: TForm1; ????implementation ????// Import Winsock 2 functions ????const WinSocket = 'WS2_32.DLL'; ????function closesocket; external winsocket name 'closesocket'; ????function socket; external winsocket name 'socket'; ????function sendto; external winsocket name 'sendto'; ????function setsockopt; external winsocket name 'setsockopt'; ????function inet_addr; external winsocket name 'inet_addr'; ????function htons; external winsocket name 'htons'; ????function WSAGetLastError; external winsocket name 'WSAGetLastError'; ????function WSAStartup; external winsocket name 'WSAStartup'; ????function WSACleanup; external winsocket name 'WSACleanup'; ????{$R *.DFM} ????function CheckSum(Var Buffer; Size : integer) : Word; ????type ????TWordArray = Array[0..1] of Word; ????var ????ChkSum : LongWord; ????i : Integer; ????begin ????ChkSum := 0; ????i := 0; ????While Size > 1 do begin ????ChkSum := ChkSum + TWordArray(Buffer)[i]; ????inc(i); ????Size := Size - SizeOf(Word); ????end; ????if Size=1 then ChkSum := ChkSum + Byte(TWordArray(Buffer)[i]); ????ChkSum := (ChkSum shr 16) + (ChkSum and $FFFF); ????ChkSum := ChkSum + (Chksum shr 16); ????Result := Word(ChkSum); ????end; ????procedure BuildHeaders( ????FromIP : String; ????iFromPort : Word; ????ToIP : String; ????iToPort : Word; ????StrMessage : String; ????Var Buf : TPacketBuffer; ????Var remote : TSockAddr; ????Var iTotalSize : Word ????); ????Var ????dwFromIP : LongWord; ????dwToIP : LongWord; ????iIPVersion : Word; ????iIPSize : Word; ????ipHdr : T_IP_Header; ????udpHdr : T_UDP_Header; ????iUdpSize : Word; ????iUdpChecksumSize : Word; ????cksum : Word; ????Ptr : ^Byte; ????procedure IncPtr(Value : Integer); ????begin ????ptr := pointer(integer(ptr) + Value); ????end; ????begin ????// Convert ip address'ss ????dwFromIP := inet_Addr(PChar(FromIP)); ????dwToIP := inet_Addr(PChar(ToIP)); ????// ?õÊ??? IP Í? ????// ????iTotalSize := sizeof(ipHdr) + sizeof(udpHdr) + length(strMessage); ????iIPVersion := 4; ????iIPSize := sizeof(ipHdr) div sizeof(LongWord); ????ipHdr.ip_verlen := (iIPVersion shl 4) or iIPSize; ????ipHdr.ip_tos := 0; // IP type of service ????ipHdr.ip_totallength := htons(iTotalSize); // Total packet len ????ipHdr.ip_id := 0; // Unique identifier: set to 0 ????ipHdr.ip_offset := 0; // Fragment offset field ????ipHdr.ip_ttl := 128; // Time to live ????ipHdr.ip_protocol := $11; // Protocol(UDP) ????ipHdr.ip_checksum := 0 ; // IP checksum ????ipHdr.ip_srcaddr := dwFromIP; // Source address ????ipHdr.ip_destaddr := dwToIP; // Destination address ????// ????// ?õÊ??? UDP Í? ????// ????iUdpSize := sizeof(udpHdr) + length(strMessage); ????udpHdr.src_portno := htons(iFromPort) ; ????udpHdr.dst_portno := htons(iToPort) ; ????udpHdr.udp_length := htons(iUdpSize) ; ????udpHdr.udp_checksum := 0 ; ????iUdpChecksumSize := 0; ????ptr := @buf[0]; ????FillChar(Buf, SizeOf(Buf), 0); ????Move(ipHdr.ip_srcaddr, ptr^, SizeOf(ipHdr.ip_srcaddr)); ????IncPtr(SizeOf(ipHdr.ip_srcaddr)); ????iUdpChecksumSize := iUdpChecksumSize + sizeof(ipHdr.ip_srcaddr); ????Move(ipHdr.ip_destaddr, ptr^, SizeOf(ipHdr.ip_destaddr)); ????IncPtr(SizeOf(ipHdr.ip_destaddr)); ????iUdpChecksumSize := iUdpChecksumSize + sizeof(ipHdr.ip_destaddr); ????IncPtr(1); ????Inc(iUdpChecksumSize); ????Move(ipHdr.ip_protocol, ptr^, sizeof(ipHdr.ip_protocol)); ????IncPtr(sizeof(ipHdr.ip_protocol)); ????iUdpChecksumSize := iUdpChecksumSize + sizeof(ipHdr.ip_protocol); ????Move(udpHdr.udp_length, ptr^, sizeof(udpHdr.udp_length)); ????IncPtr(sizeof(udpHdr.udp_length)); ????iUdpChecksumSize := iUdpChecksumSize + sizeof(udpHdr.udp_length); ????move(udpHdr, ptr^, sizeof(udpHdr)); ????IncPtr(sizeof(udpHdr)); ????iUdpChecksumSize := iUdpCheckSumSize + sizeof(udpHdr); ????Move(StrMessage[1], ptr^, Length(strMessage)); ????IncPtr(Length(StrMessage)); ????iUdpChecksumSize := iUdpChecksumSize + length(strMessage); ????cksum := checksum(buf, iUdpChecksumSize); ????udpHdr.udp_checksum := cksum; ????// ????// ÏÖÔÚ IP ºÍ UDP Í?OKÁË??ÎÒÃÇ?ÉÒÔ?ÑËü??ËÍ?öÈ??? ????// ????FillChar(Buf, SizeOf(Buf), 0); ????Ptr := @Buf[0]; ????Move(ipHdr, ptr^, SizeOf(ipHdr)); IncPtr(SizeOf(ipHdr)); ????Move(udpHdr, ptr^, SizeOf(udpHdr)); IncPtr(SizeOf(udpHdr)); ????Move(StrMessage[1], ptr^, length(StrMessage)); ????remote.sin_family := AF_INET; ????remote.sin_port := htons(iToPort); ????remote.sin_addr.s_addr := dwToIP; ????end; ????procedure TForm1.SendIt; ????Var ????sh : TSocket; ????bOpt : Integer; ????ret : Integer; ????Buf : TPacketBuffer; ????Remote : TSockAddr; ????Local : TSockAddr; ????iTotalSize : Word; ????wsdata : TWSAdata; ????begin ????// Startup Winsock 2 ????ret := WSAStartup($0002, wsdata); ????if ret<>0 then begin ????memo1.lines.add('WSA Startup failed.'); ????exit; ????end; ????with memo1.lines do begin ????add('WSA Startup:'); ????add('Desc.: '+wsData.szDescription); ????add('Status: '+wsData.szSystemStatus); ????end; ????try ????// Create socket ????sh := Socket(AF_INET, SOCK_RAW, IPPROTO_UDP); ????if (sh = INVALID_SOCKET) then begin ????memo1.lines.add('Socket() failed: '+IntToStr(WSAGetLastError)); ????exit; ????end; ????Memo1.lines.add('Socket Handle = '+IntToStr(sh)); ????// Option: Header Include ????bOpt := 1; ????ret := SetSockOpt(sh, IPPROTO_IP, IP_HDRINCL, @bOpt, SizeOf(bOpt)); ????if ret = SOCKET_ERROR then begin ????Memo1.lines.add('setsockopt(IP_HDRINCL) failed: '+IntToStr(WSAGetLastError)); ????exit; ????end; ????// Build the packet ????BuildHeaders( SrcIP, SrcPort, ????DestIP, DestPort, ????'THIS IS A TEST PACKET', ????Buf, Remote, iTotalSize ); ????// Send the packet ????ret := SendTo(sh, buf, iTotalSize, 0, Remote, SizeOf(Remote)); ????if ret = SOCKET_ERROR then ????Memo1.Lines.Add('sendto() failed: '+IntToStr(WSAGetLastError)) ????else ????Memo1.Lines.Add('send '+IntToStr(ret)+' bytes.'); ????// Close socket ????CloseSocket(sh); ????finally ????// Close Winsock 2 ????WSACleanup; ????end; ????end; ????procedure TForm1.Button1Click(Sender: TObject); ????begin ????SendIt; ????end;