有谁知道联众的数据包是怎么截取的？

[张志龙]

谢谢。

[luckyljt123]

帮你UP

[张志龙]

hehe,这个只有联众的人才知道了。呵呵

[yunfeng007]

这是在win2000下截获数据包的代码，把以下内容放在一个模块中就可以了。
'-----------------------------代码开始-------------------------------------------
Declare Function bind Lib "ws2_32.dll" (ByVal s As Long, addr As SOCK_ADDR, ByVal namelen As Long) As Long
Declare Function closesocket Lib "ws2_32.dll" (ByVal s As Long) As Long
Declare Function connect Lib "ws2_32.dll" (ByVal s As Long, name As SOCK_ADDR, ByVal namelen As Integer) As Long
Declare Function inet_addr Lib "ws2_32.dll" (ByVal cp As String) As Long
Declare Function htons Lib "ws2_32.dll" (ByVal hostshort As Integer) As Integer
Declare Function recv Lib "ws2_32.dll" (ByVal s As Long, buffer As Any, ByVal length As Long, ByVal flags As Long) As Long
Declare Function send Lib "ws2_32.dll" (ByVal s As Long, buffer As Any, ByVal length As Long, ByVal flags As Long) As Long
Declare Function shutdown Lib "ws2_32.dll" (ByVal s As Long, ByVal how As Long) As Long
Declare Function ioctlsocket Lib "ws2_32.dll" (ByVal s As Long, ByVal v As Long, ut As Long) As Long
Declare Function socket Lib "ws2_32.dll" (ByVal af As Long, ByVal type_specification As Long, ByVal protocol As Long) As Long
Declare Function WSACancelBlockingCall Lib "ws2_32.dll" () As Long
Declare Function WSACleanup Lib "ws2_32.dll" () As Long
Declare Function WSAGetLastError Lib "ws2_32.dll" () As Long
Declare Function WSAStartup Lib "ws2_32.dll" (ByVal wVersionRequired As Integer, wsData As WSA_DATA) As Long
Declare Function WSASocketA Lib "ws2_32.dll" (ByVal af As Long, ByVal type1 As Long, ByVal protocol As Long, lpProtocolInfo As Long, g As Long, ByVal dwFlags As Long)
Declare Function WSAIoctl Lib "ws2_32.dll" (ByVal s As Long, ByVal dwIoControlCode As Long, lpvInBuffer As Long, ByVal cbInBuffer As Long, lpvOutBuffer As Long, ByVal cbOutBuffer As Long, lpcbBytesReturned As Long, lpOverlapped As Long, lpCompletionRoutine As Long) As Long

Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal length As Long)

Public Declare Sub Sleep Lib "kernel32" (ByVal dwMilliseconds As Long)

Public Const WSADESCRIPTION_LEN = 256
Public Const WSASYS_STATUS_LEN = 128

Type WSA_DATA
wVersion As Integer
wHighVersion As Integer
strDescription(WSADESCRIPTION_LEN + 1) As Byte
strSystemStatus(WSASYS_STATUS_LEN + 1) As Byte
iMaxSockets As Integer
iMaxUdpDg As Integer
lpVendorInfo As Long
End Type

Type IN_ADDR
S_addr As Long
End Type

Type SOCK_ADDR
sin_family As Integer
sin_port As Integer
sin_addr As IN_ADDR
sin_zero(0 To 7) As Byte
End Type


Type IPHeader
lenver As Byte
tos As Byte
len As Integer
ident As Integer
flags As Integer
ttl As Byte
proto As Byte
checksum As Integer
sourceIP As Long
destIP As Long
End Type

Const AF_INET = 2
Const SOCK_RAW = 3
Const IPPROTO_IP = 0
Const IPPROTO_TCP = 6
Const IPPROTO_UDP = 17
Const MAX_PACK_LEN = 65535
Const SOCKET_ERROR = -1&



Private mwsaData As WSA_DATA
Private m_hSocket As Long


Private msaLocalAddr As SOCK_ADDR

Private msaRemoteAddr As SOCK_ADDR


Sub Main()
Dim nResult As Long

nResult = WSAStartup(&H202, mwsaData)
If nResult <> WSANOERROR Then
MsgBox "Error en WSAStartup"
Exit Sub
End If

m_hSocket = socket(AF_INET, SOCK_RAW, IPPROTO_IP)
If (m_hSocket = INVALID_SOCKET) Then
MsgBox "Error in socket"
Exit Sub
End If


msaLocalAddr.sin_family = AF_INET
msaLocalAddr.sin_port = 0
msaLocalAddr.sin_addr.S_addr = inet_addr("192.168.1.125") '这里需要你自己的网卡的IP地址

nResult = bind(m_hSocket, msaLocalAddr, Len(msaLocalAddr))
If (nResult = SOCKET_ERROR) Then
MsgBox "Error in bind"
Exit Sub
End If

Dim InParamBuffer As Long
Dim BytesRet As Long
BytesRet = 0
InParamBuffer = 1


nResult = ioctlsocket(m_hSocket, &H98000001, 1)


If nResult <> 0 Then
MsgBox "ioctlsocket"
Exit Sub
End If


Dim strData As String
Dim nReceived As Long


'截获来的数据放在BUFF里面
Dim Buff(0 To MAX_PACK_LEN) As Byte
Dim IPH As IPHeader

Do Until False '这个例子里，一直获取
DoEvents
nResult = recv(m_hSocket, Buff(0), MAX_PACK_LEN, 0)
If nResult = SOCKET_ERROR Then
MsgBox "Error in RecvData::recv"
Exit Do
End If
CopyMemory IPH, Buff(0), Len(IPH) '为了访问方便
Select Case IPH.proto
Case IPPROTO_TCP
'frmHookTcpip.Text1.SelText = HexIp2DotIp(IPH.sourceIP)
'frmHookTcpip.Text1.SelText = " -----> "
'frmHookTcpip.Text1.SelText = HexIp2DotIp(IPH.destIP)
'frmHookTcpip.Text1.SelText = vbCrLf
Debug.Print HexIp2DotIp(IPH.sourceIP) & " -----> " & HexIp2DotIp(IPH.destIP)
End Select
Loop

nResult = shutdown(m_hSocket, 2)
nResult = closesocket(m_hSocket)
nResult = WSACancelBlockingCall
nResult = WSACleanup
End Sub


Function HexIp2DotIp(ByVal ip As Long) As String
Dim s As String, p1 As String, p2 As String, p3 As String, p4 As String
s = Right("00000000" & Hex(ip), 8)
p1 = Val("&h" & Mid(s, 1, 2))
p2 = Val("&h" & Mid(s, 3, 2))
p3 = Val("&h" & Mid(s, 5, 2))
p4 = Val("&h" & Mid(s, 7, 2))
HexIp2DotIp = p4 & "." & p3 & "." & p2 & "." & p1
End Function
'-----------------------------代码结束-------------------------------------------

[Gelim]

up!

[cooldai]

朋友，请将INVALID_SOCKET\WSANOERROR 常量定义一下，我没办法运行，感谢。

[jlum99]

上面的只是监听.要截取要做很多的工作的

[陈年椰子]

学习！

[高高兴兴的晶晶]

http://www.csdn.net/develop/article/21/21125.shtm
http://www.csdn.net/develop/article/21/21126.shtm


希望对楼主有用。。。

[yinguangbo]

Type IPHeader
lenver As Byte
tos As Byte
len As Integer
ident As Integer
flags As Integer
ttl As Byte
proto As Byte
checksum As Integer
sourceIP As Long
destIP As Long
End Type

能不能把这个结构体的各个参数说明一下，我用了还是截不到可以看的懂的数据

[高高兴兴的晶晶]

估计没那么简单截取的，就算截取到了，应该是加密的，没有用啊。

再问问楼主，研究这个干什么东东用？？

[chriswing]

wpe

[chriswing]

当然是做外挂了

[张志龙]

gz