using namespace std;
void EnableSeLockMemoryPrivilege();
int main()
{
SYSTEM_INFO sysInfo;
ULONG_PTR PageArray = 0;
ULONG_PTR PageArraySize = 1;
PVOID Address = NULL;
BOOL bRet = FALSE;
//调整进程权限
EnableSeLockMemoryPrivilege();
//获取系统信息
GetSystemInfo(&sysInfo);
//输出PageSize
cout << "当前系统的PageSize是：" << sysInfo.dwPageSize << "\n";
//分配一块虚拟内存
Address = VirtualAlloc(NULL, sysInfo.dwPageSize, MEM_RESERVE|MEM_PHYSICAL, PAGE_READWRITE);
if (Address == NULL)
{
cout << "分配虚拟内存失败！\n";
return 0;
}
//分配物理内存
bRet = AllocateUserPhysicalPages(GetCurrentProcess(), &PageArraySize, &PageArray);
if (!bRet) {
cout << "分配虚拟内存失败！\n";
return 0;
}
//cout << "分配的物理内存是：" << PageArray << "\n";
//将物理内存映射到虚拟内存
MapUserPhysicalPages(Address, 1, &PageArray);
//向虚拟内存写入内容
*(int*)Address = 114514;
//解除物理内存映射
MapUserPhysicalPages(Address, 1, NULL);
cout << "写入的内容是整数：114514，写入地址：0x" << Address << "，你可以试试能不能搜索到数据，如果搜到了请修改，后面还会读取一次\n";
system("pause");
//再次将物理内存映射到虚拟内存
MapUserPhysicalPages(Address, 1, &PageArray);
cout << "读取的内容是整数：" << *(int*)Address << "\n";
//释放物理内存
FreeUserPhysicalPages(GetCurrentProcess(), &PageArraySize, &PageArray);
//释放虚拟内存
VirtualFree(Address, 0, MEM_RELEASE);
cout << "测试结束\n";
system("pause");
return 0;
}
void EnableSeLockMemoryPrivilege() {
//调整当前进程权限，使得进程有SeLockMemory的权限
HANDLE hToken;
TOKEN_PRIVILEGES tkp;
memset(&tkp, 0, sizeof(tkp));
// Get a token for this process.
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES | TOKEN_QUERY, &hToken))
{
cout << "OpenProcessToken failed" << endl;
return;
}
// Get the LUID for the lock memory privilege.
LookupPrivilegeValue(NULL, SE_LOCK_MEMORY_NAME, &tkp.Privileges[0].Luid);
tkp.PrivilegeCount = 1; // one privilege to set
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
// Get the lock memory privilege for this process.
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0);
if (GetLastError() != ERROR_SUCCESS)
{
cout << "AdjustTokenPrivileges failed" << endl;
return;
}
}
