| 发表于：2007-08-31 18:05:29 楼主 |
我用c#写了一个读取客户端mac地址的控件,在winform下运行正常,搬到ie里就出现权限错误:
请求“system.security.permissions.registrypermission, mscorlib, version=2.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089”类型的权限已失败。
窗体上只有一个文本框,用来显示mac地址,源代码如下:
using system;
using system.net;
using system.collections.generic;
using system.componentmodel;
using system.drawing;
using system.data;
using system.text;
using system.windows.forms;
using system.runtime.interopservices;
using microsoft.win32;
using system.management;
using system.diagnostics;
using system.text.regularexpressions;
namespace wmactivex
{
[guid（ "d3722706-9591-4449-b8aa-f35ee65fb9b0 ")]
public partial class hardware : usercontrol
{
public hardware（)
{
initializecomponent（);
textbox1.text = getlocalmac（);
}
public static string getlocalmac（)
{
list <string> netcardlist = getnetcardlist（);
list <string> .enumerator enumnetcard = netcardlist.getenumerator（);
string macaddr = string.empty;
while （enumnetcard.movenext（))
{
macaddr = getphysicaladdr（enumnetcard.current);
if （macaddr != string.empty)
{
break;
}
}
return macaddr;
}
public static list <string> getnetcardlist（)
{
list <string> cardlist = new list <string> （);
try
{
//请求“system.security.permissions.registrypermission, mscorlib, version=2.0.0.0, culture=neutral, publickeytoken=b77a5c561934e089”类型的权限已失败。
registrykey regnetcards = registry.localmachine.opensubkey（win32utils.reg_net_cards_key);
if （regnetcards != null)
{
string[] names = regnetcards.getsubkeynames（);
registrykey subkey = null;
foreach （string name in names)
{
subkey = regnetcards.opensubkey（name);
if （subkey != null)
{
object o = subkey.getvalue（ "servicename ");
if （o != null)
{
cardlist.add（o.tostring（));
}
}
}
}
}
catch （exception ex)
{
}
return cardlist;
}
private static string getphysicaladdr（string cardid)
{
string macaddress = string.empty;
uint device = 0;
try
{
string drivename = "\\\\.\\ " + cardid;
device = win32utils.createfile（drivename,
win32utils.generic_read ¦ win32utils.generic_write,
win32utils.file_share_read ¦ win32utils.file_share_write,
0, win32utils.open_existing, 0, 0);
if （device != win32utils.invalid_handle_value)
{
byte[] outbuff = new byte[6];
uint bytrv = 0;
int intbuff = win32utils.permanent_address;
if （0 != win32utils.deviceiocontrol（device, win32utils.ioctl_ndis_query_global_stats,
ref intbuff, 4, outbuff, 6, ref bytrv, 0))
{
string temp = string.empty;
foreach （byte b in outbuff)
{
temp = convert.tostring（b, 16).padleft（2, '0 ');
macaddress += temp;
temp = string.empty;
}
}
}
}
finally
{
if （device != 0)
{
win32utils.closehandle（device);
}
}
return macaddress;
}
}
#region win32utils
public class win32utils
{
public const string reg_net_cards_key = @ "software\microsoft\windows nt\currentversion\networkcards ";
public const uint generic_read = 0x80000000;
public const uint generic_write = 0x40000000;
public const uint file_share_read = 0x00000001;
public const uint file_share_write = 0x00000002;
public const uint open_existing = 3;
public const uint invalid_handle_value = 0xffffffff;
public const uint ioctl_ndis_query_global_stats = 0x00170002;
public const int permanent_address = 0x01010101;
[dllimport（ "kernel32.dll ")]
public static extern int closehandle（uint hobject);
[dllimport（ "kernel32.dll ")]
public static extern int deviceiocontrol（uint hdevice,
uint dwiocontrolcode,
ref int lpinbuffer,
int ninbuffersize,
byte[] lpoutbuffer,
int noutbuffersize,
ref uint lpbytesreturned,
int lpoverlapped);
[dllimport（ "kernel32.dll ")]
public static extern uint createfile（string lpfilename,
uint dwdesiredaccess,
uint dwsharemode,
int lpsecurityattributes,
uint dwcreationdisposition,
uint dwflagsandattributes,
int htemplatefile);
}
#endregion
}
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