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Interop.cs
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Interop.cs
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#pragma warning disable 1573
#pragma warning disable 1574
using System;
using System.Runtime.InteropServices;
using System.Net.NetworkInformation;
using System.Text;
using System.Diagnostics;
using System.ComponentModel;
namespace NativeWifi
{
// TODO: Separate the functions and the structs/enums. Many of the structs/enums should remain public
// (since they're reused in the OOP interfaces) -- the rest (including all P/Invoke function mappings)
// should become internal.
// All structures which native methods rely on should be kept in the Wlan class.
// Only change the layout of those structures if it matches the native API documentation.
// Some structures might have helper properties but adding or changing fields is prohibited.
// This class is not documented since all the documentation resides in the MSDN. The code
// documentation only covers details which concern interop users.
// Some identifier names were modified to correspond to .NET naming conventions
// but otherwise retain their native meaning.
/// <summary>
/// Defines the Native Wifi API through P/Invoke interop.
/// </summary>
/// <remarks>
/// This class is intended for internal use. Use the <see cref="WlanClient"/> class instead.
/// </remarks>
public static class Wlan
{
#region P/Invoke API
/// <summary>
/// Defines various opcodes used to set and query parameters for an interface.
/// </summary>
/// <remarks>
/// Corresponds to the native <c>WLAN_INTF_OPCODE</c> type.
/// </remarks>
public enum WlanIntfOpcode
{
/// <summary>
/// Not used.
/// </summary>
AutoconfStart = 0x000000000,
/// <summary>
/// Opcode used to set or query whether auto config is enabled.
/// </summary>
AutoconfEnabled = 1,
/// <summary>
/// Opcode used to set or query whether background scan is enabled.
/// </summary>
BackgroundScanEnabled,
/// <summary>
/// Opcode used to set or query the media streaming mode of the driver.
/// </summary>
MediaStreamingMode,
/// <summary>
/// Opcode used to set or query the radio state.
/// </summary>
RadioState,
/// <summary>
/// Opcode used to set or query the BSS type of the interface.
/// </summary>
BssType,
/// <summary>
/// Opcode used to query the state of the interface.
/// </summary>
InterfaceState,
/// <summary>
/// Opcode used to query information about the current connection of the interface.
/// </summary>
CurrentConnection,
/// <summary>
/// Opcose used to query the current channel on which the wireless interface is operating.
/// </summary>
ChannelNumber,
/// <summary>
/// Opcode used to query the supported auth/cipher pairs for infrastructure mode.
/// </summary>
SupportedInfrastructureAuthCipherPairs,
/// <summary>
/// Opcode used to query the supported auth/cipher pairs for ad hoc mode.
/// </summary>
SupportedAdhocAuthCipherPairs,
/// <summary>
/// Opcode used to query the list of supported country or region strings.
/// </summary>
SupportedCountryOrRegionStringList,
/// <summary>
/// Opcode used to set or query the current operation mode of the wireless interface.
/// </summary>
CurrentOperationMode,
/// <summary>
/// The opcode used to query whether the miniport/NIC combination supports Federal Information Processing Standards (FIPS) mode. This opcode can only be used in a query operation with the WlanQueryInterface function. FIPS mode is also known as safe mode. This wireless safe mode is different than the operating system safe mode.
/// </summary>
SupportedSafeMode,
/// <summary>
/// The opcode used to query whether the miniport/NIC combination is FIPS certified. This opcode can only be used in a query operation with the WlanQueryInterface function.
/// </summary>
CertifiedSafeMode,
/// <summary>
/// The opcode used to query for Hosted Network support in the device driver associated with the Wireless interface. This opcode can only be used in a query operation with the WlanQueryInterface function.
/// </summary>
HostedNetworkCapable,
/// <summary>
/// The opcode used to query whether Managememt Frame Protection (MFP) is supported in the device driver associated with the Wireless interface. This opcode can only be used in a query operation with the WlanQueryInterface function.
/// </summary>
ManagementFrameProtectionCapable,
/// <summary>
/// Opcode used to query driver statistics.
/// </summary>
Statistics = 0x10000101,
/// <summary>
/// Opcode used to query the received signal strength.
/// </summary>
RSSI,
SecurityStart = 0x20010000,
SecurityEnd = 0x2fffffff,
IhvStart = 0x30000000,
IhvEnd = 0x3fffffff
}
/// <summary>
/// Specifies the origin of automatic configuration (auto config) settings.
/// </summary>
/// <remarks>
/// Corresponds to the native <c>WLAN_OPCODE_VALUE_TYPE</c> type.
/// </remarks>
public enum WlanOpcodeValueType
{
/// <summary>
/// The auto config settings were queried, but the origin of the settings was not determined.
/// </summary>
QueryOnly = 0,
/// <summary>
/// The auto config settings were set by group policy.
/// </summary>
SetByGroupPolicy = 1,
/// <summary>
/// The auto config settings were set by the user.
/// </summary>
SetByUser = 2,
/// <summary>
/// The auto config settings are invalid.
/// </summary>
Invalid = 3
}
public const uint WLAN_CLIENT_VERSION_XP_SP2 = 1;
public const uint WLAN_CLIENT_VERSION_LONGHORN = 2;
[DllImport("wlanapi.dll")]
public static extern int WlanOpenHandle(
[In] UInt32 clientVersion,
[In, Out] IntPtr pReserved,
[Out] out UInt32 negotiatedVersion,
[Out] out IntPtr clientHandle);
[DllImport("wlanapi.dll")]
public static extern int WlanCloseHandle(
[In] IntPtr clientHandle,
[In, Out] IntPtr pReserved);
[DllImport("wlanapi.dll")]
public static extern int WlanEnumInterfaces(
[In] IntPtr clientHandle,
[In, Out] IntPtr pReserved,
[Out] out IntPtr ppInterfaceList);
[DllImport("wlanapi.dll")]
public static extern int WlanQueryInterface(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In] WlanIntfOpcode opCode,
[In, Out] IntPtr pReserved,
[Out] out int dataSize,
[Out] out IntPtr ppData,
[Out] out WlanOpcodeValueType wlanOpcodeValueType);
[DllImport("wlanapi.dll")]
public static extern int WlanSetInterface(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In] WlanIntfOpcode opCode,
[In] uint dataSize,
[In] IntPtr pData,
[In, Out] IntPtr pReserved);
/// <param name="pDot11Ssid">Not supported on Windows XP SP2: must be a <c>null</c> reference.</param>
/// <param name="pIeData">Not supported on Windows XP SP2: must be a <c>null</c> reference.</param>
[DllImport("wlanapi.dll")]
public static extern int WlanScan(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In] IntPtr pDot11Ssid,
[In] IntPtr pIeData,
[In, Out] IntPtr pReserved);
/// <summary>
/// Defines flags passed to <see cref="WlanGetAvailableNetworkList"/>.
/// </summary>
[Flags]
public enum WlanGetAvailableNetworkFlags
{
/// <summary>
/// Include all ad-hoc network profiles in the available network list, including profiles that are not visible.
/// </summary>
IncludeAllAdhocProfiles = 0x00000001,
/// <summary>
/// Include all hidden network profiles in the available network list, including profiles that are not visible.
/// </summary>
IncludeAllManualHiddenProfiles = 0x00000002
}
/// <summary>
/// The header of an array of information about available networks.
/// </summary>
[StructLayout(LayoutKind.Sequential)]
internal struct WlanAvailableNetworkListHeader
{
/// <summary>
/// Contains the number of <see cref="WlanAvailableNetwork"/> items following the header.
/// </summary>
public uint numberOfItems;
/// <summary>
/// The index of the current item. The index of the first item is 0.
/// </summary>
public uint index;
}
/// <summary>
/// Defines the flags which specify characteristics of an available network.
/// </summary>
[Flags]
public enum WlanAvailableNetworkFlags
{
/// <summary>
/// This network is currently connected.
/// </summary>
Connected = 0x00000001,
/// <summary>
/// There is a profile for this network.
/// </summary>
HasProfile = 0x00000002,
/// <summary>
/// The profile is the active console user's per user profile
/// </summary>
ConsoleUserProfile = 0x00000004,
/// <summary>
/// Interworking is supported
/// </summary>
InterworkingSupported = 0x00000008,
/// <summary>
/// Hotspot2 is enabled
/// </summary>
Hotspot2Enabled = 0x00000010,
/// <summary>
/// ANQP is supported
/// </summary>
ANQPSupported = 0x00000020,
/// <summary>
/// Domain network
/// </summary>
Hotspot2Domain = 0x00000040,
/// <summary>
/// Roaming network
/// </summary>
Hotspot2Roaming = 0x00000080,
/// <summary>
/// This network failed to connect
/// </summary>
AutoConnectFailed = 0x00000100,
}
/// <summary>
/// Contains information about an available wireless network.
/// </summary>
[StructLayout(LayoutKind.Sequential, CharSet=CharSet.Unicode)]
public struct WlanAvailableNetwork
{
/// <summary>
/// Contains the profile name associated with the network.
/// If the network doesn't have a profile, this member will be empty.
/// If multiple profiles are associated with the network, there will be multiple entries with the same SSID in the visible network list. Profile names are case-sensitive.
/// </summary>
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)]
public string profileName;
/// <summary>
/// Contains the SSID of the visible wireless network.
/// </summary>
public Dot11Ssid dot11Ssid;
/// <summary>
/// Specifies whether the network is an infrastructure or an ad-hoc one.
/// </summary>
public Dot11BssType dot11BssType;
/// <summary>
/// Indicates the number of BSSIDs in the network.
/// </summary>
public uint numberOfBssids;
/// <summary>
/// Indicates whether the network is connectable.
/// </summary>
public bool networkConnectable;
/// <summary>
/// Indicates why a network cannot be connected to. This member is only valid when <see cref="networkConnectable"/> is <c>false</c>.
/// </summary>
public WlanReasonCode wlanNotConnectableReason;
/// <summary>
/// The number of PHY types supported on available networks.
/// The maximum value of this field is 8. If more than 8 PHY types are supported, <see cref="morePhyTypes"/> must be set to <c>true</c>.
/// </summary>
private uint numberOfPhyTypes;
/// <summary>
/// Contains an array of <see cref="Dot11PhyType"/> values that represent the PHY types supported by the available networks.
/// When <see cref="numberOfPhyTypes"/> is greater than 8, this array contains only the first 8 PHY types.
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 8)]
private Dot11PhyType[] dot11PhyTypes;
/// <summary>
/// Gets the <see cref="Dot11PhyType"/> values that represent the PHY types supported by the available networks.
/// </summary>
public Dot11PhyType[] Dot11PhyTypes
{
get
{
Dot11PhyType[] ret = new Dot11PhyType[numberOfPhyTypes];
Array.Copy(dot11PhyTypes, ret, numberOfPhyTypes);
return ret;
}
}
/// <summary>
/// Specifies if there are more than 8 PHY types supported.
/// When this member is set to <c>true</c>, an application must call <see cref="WlanClient.WlanInterface.GetNetworkBssList"/> to get the complete list of PHY types.
/// <see cref="WlanBssEntry.phyId"/> contains the PHY type for an entry.
/// </summary>
public bool morePhyTypes;
/// <summary>
/// A percentage value that represents the signal quality of the network.
/// This field contains a value between 0 and 100.
/// A value of 0 implies an actual RSSI signal strength of -100 dbm.
/// A value of 100 implies an actual RSSI signal strength of -50 dbm.
/// You can calculate the RSSI signal strength value for values between 1 and 99 using linear interpolation.
/// </summary>
public uint wlanSignalQuality;
/// <summary>
/// Indicates whether security is enabled on the network.
/// </summary>
public bool securityEnabled;
/// <summary>
/// Indicates the default authentication algorithm used to join this network for the first time.
/// </summary>
public Dot11AuthAlgorithm dot11DefaultAuthAlgorithm;
/// <summary>
/// Indicates the default cipher algorithm to be used when joining this network.
/// </summary>
public Dot11CipherAlgorithm dot11DefaultCipherAlgorithm;
/// <summary>
/// Contains various flags specifying characteristics of the available network.
/// </summary>
public WlanAvailableNetworkFlags flags;
/// <summary>
/// Reserved for future use. Must be set to NULL.
/// </summary>
uint reserved;
}
[DllImport("wlanapi.dll")]
public static extern int WlanGetAvailableNetworkList(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In] WlanGetAvailableNetworkFlags flags,
[In, Out] IntPtr reservedPtr,
[Out] out IntPtr availableNetworkListPtr);
[Flags]
public enum WlanProfileFlags
{
/// <remarks>
/// The only option available on Windows XP SP2.
/// </remarks>
AllUser = 0,
GroupPolicy = 1,
User = 2
}
[DllImport("wlanapi.dll")]
public static extern int WlanSetProfile(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In] WlanProfileFlags flags,
[In, MarshalAs(UnmanagedType.LPWStr)] string profileXml,
[In, Optional, MarshalAs(UnmanagedType.LPWStr)] string allUserProfileSecurity,
[In] bool overwrite,
[In] IntPtr pReserved,
[Out] out WlanReasonCode reasonCode);
/// <summary>
/// Defines the access mask of an all-user profile.
/// </summary>
[Flags]
public enum WlanAccess
{
/// <summary>
/// The user can view profile permissions.
/// </summary>
ReadAccess = 0x00020000 | 0x0001,
/// <summary>
/// The user has read access, and the user can also connect to and disconnect from a network using the profile.
/// </summary>
ExecuteAccess = ReadAccess | 0x0020,
/// <summary>
/// The user has execute access and the user can also modify and delete permissions associated with a profile.
/// </summary>
WriteAccess = ReadAccess | ExecuteAccess | 0x0002 | 0x00010000 | 0x00040000
}
/// <param name="flags">Not supported on Windows XP SP2: must be a <c>null</c> reference.</param>
[DllImport("wlanapi.dll")]
public static extern int WlanGetProfile(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In, MarshalAs(UnmanagedType.LPWStr)] string profileName,
[In] IntPtr pReserved,
[Out] out IntPtr profileXml,
[Out, Optional] out WlanProfileFlags flags,
[Out, Optional] out WlanAccess grantedAccess);
[DllImport("wlanapi.dll")]
public static extern int WlanGetProfileList(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In] IntPtr pReserved,
[Out] out IntPtr profileList
);
[DllImport("wlanapi.dll")]
public static extern void WlanFreeMemory(IntPtr pMemory);
[DllImport("wlanapi.dll")]
public static extern int WlanReasonCodeToString(
[In] WlanReasonCode reasonCode,
[In] int bufferSize,
[In, Out] StringBuilder stringBuffer,
IntPtr pReserved
);
/// <summary>
/// Defines the mask which specifies where a notification comes from.
/// </summary>
[Flags]
public enum WlanNotificationSource
{
None = 0,
/// <summary>
/// All notifications, including those generated by the 802.1X module.
/// </summary>
All = 0X0000FFFF,
/// <summary>
/// Notifications generated by the auto configuration module.
/// </summary>
ACM = 0X00000008,
/// <summary>
/// Notifications generated by MSM.
/// </summary>
MSM = 0X00000010,
/// <summary>
/// Notifications generated by the security module.
/// </summary>
Security = 0X00000020,
/// <summary>
/// Notifications generated by independent hardware vendors (IHV).
/// </summary>
IHV = 0X00000040
}
/// <summary>
/// Defines the types of ACM (<see cref="WlanNotificationSource.ACM"/>) notifications.
/// </summary>
/// <remarks>
/// The enumeration identifiers correspond to the native <c>wlan_notification_acm_</c> identifiers.
/// On Windows XP SP2, only the <c>ConnectionComplete</c> and <c>Disconnected</c> notifications are available.
/// </remarks>
public enum WlanNotificationCodeAcm
{
AutoconfEnabled = 1,
AutoconfDisabled,
BackgroundScanEnabled,
BackgroundScanDisabled,
BssTypeChange,
PowerSettingChange,
ScanComplete,
ScanFail,
ConnectionStart,
ConnectionComplete,
ConnectionAttemptFail,
FilterListChange,
InterfaceArrival,
InterfaceRemoval,
ProfileChange,
ProfileNameChange,
ProfilesExhausted,
NetworkNotAvailable,
NetworkAvailable,
Disconnecting,
Disconnected,
AdhocNetworkStateChange,
ProfileUnblocked,
ScreenPowerChange,
ProfileBlocked,
ScanListRefresh,
OperationalStateChange,
}
/// <summary>
/// Defines the types of an MSM (<see cref="WlanNotificationSource.MSM"/>) notifications.
/// </summary>
/// <remarks>
/// The enumeration identifiers correspond to the native <c>wlan_notification_msm_</c> identifiers.
/// </remarks>
public enum WlanNotificationCodeMsm
{
Associating = 1,
Associated,
Authenticating,
Connected,
RoamingStart,
RoamingEnd,
RadioStateChange,
SignalQualityChange,
Disassociating,
Disconnected,
PeerJoin,
PeerLeave,
AdapterRemoval,
AdapterOperationModeChange
}
/// <summary>
/// Contains information provided when registering for WLAN notifications.
/// </summary>
/// <remarks>
/// Corresponds to the native <c>WLAN_NOTIFICATION_DATA</c> type.
/// </remarks>
[StructLayout(LayoutKind.Sequential)]
public struct WlanNotificationData
{
/// <summary>
/// Specifies where the notification comes from.
/// </summary>
/// <remarks>
/// On Windows XP SP2, this field must be set to <see cref="WlanNotificationSource.None"/>, <see cref="WlanNotificationSource.All"/> or <see cref="WlanNotificationSource.ACM"/>.
/// </remarks>
public WlanNotificationSource notificationSource;
/// <summary>
/// Indicates the type of notification. The value of this field indicates what type of associated data will be present in <see cref="dataPtr"/>.
/// </summary>
public int notificationCode;
/// <summary>
/// Indicates which interface the notification is for.
/// </summary>
public Guid interfaceGuid;
/// <summary>
/// Specifies the size of <see cref="dataPtr"/>, in bytes.
/// </summary>
public int dataSize;
/// <summary>
/// Pointer to additional data needed for the notification, as indicated by <see cref="notificationCode"/>.
/// </summary>
public IntPtr dataPtr;
/// <summary>
/// Gets the notification code (in the correct enumeration type) according to the notification source.
/// </summary>
public object NotificationCode
{
get
{
switch (notificationSource)
{
case WlanNotificationSource.MSM:
return (WlanNotificationCodeMsm)notificationCode;
case WlanNotificationSource.ACM:
return (WlanNotificationCodeAcm)notificationCode;
default:
return notificationCode;
}
}
}
}
/// <summary>
/// Defines the callback function which accepts WLAN notifications.
/// </summary>
public delegate void WlanNotificationCallbackDelegate(ref WlanNotificationData notificationData, IntPtr context);
[DllImport("wlanapi.dll")]
public static extern int WlanRegisterNotification(
[In] IntPtr clientHandle,
[In] WlanNotificationSource notifSource,
[In] bool ignoreDuplicate,
[In] WlanNotificationCallbackDelegate funcCallback,
[In] IntPtr callbackContext,
[In] IntPtr reserved,
[Out] out WlanNotificationSource prevNotifSource);
/// <summary>
/// Defines flags which affect connecting to a WLAN network.
/// </summary>
[Flags]
public enum WlanConnectionFlags
{
/// <summary>
/// Connect to the destination network even if the destination is a hidden network. A hidden network does not broadcast its SSID. Do not use this flag if the destination network is an ad-hoc network.
/// <para>If the profile specified by <see cref="WlanConnectionParameters.profile"/> is not <c>null</c>, then this flag is ignored and the nonBroadcast profile element determines whether to connect to a hidden network.</para>
/// </summary>
HiddenNetwork = 0x00000001,
/// <summary>
/// Do not form an ad-hoc network. Only join an ad-hoc network if the network already exists. Do not use this flag if the destination network is an infrastructure network.
/// </summary>
AdhocJoinOnly = 0x00000002,
/// <summary>
/// Ignore the privacy bit when connecting to the network. Ignoring the privacy bit has the effect of ignoring whether packets are encryption and ignoring the method of encryption used. Only use this flag when connecting to an infrastructure network using a temporary profile.
/// </summary>
IgnorePrivacyBit = 0x00000004,
/// <summary>
/// Exempt EAPOL traffic from encryption and decryption. This flag is used when an application must send EAPOL traffic over an infrastructure network that uses Open authentication and WEP encryption. This flag must not be used to connect to networks that require 802.1X authentication. This flag is only valid when <see cref="WlanConnectionParameters.wlanConnectionMode"/> is set to <see cref="WlanConnectionMode.TemporaryProfile"/>. Avoid using this flag whenever possible.
/// </summary>
EapolPassthrough = 0x00000008
}
/// <summary>
/// Specifies the parameters used when using the <see cref="WlanConnect"/> function.
/// </summary>
/// <remarks>
/// Corresponds to the native <c>WLAN_CONNECTION_PARAMETERS</c> type.
/// </remarks>
[StructLayout(LayoutKind.Sequential)]
public struct WlanConnectionParameters
{
/// <summary>
/// Specifies the mode of connection.
/// </summary>
public WlanConnectionMode wlanConnectionMode;
/// <summary>
/// Specifies the profile being used for the connection.
/// The contents of the field depend on the <see cref="wlanConnectionMode"/>:
/// <list type="table">
/// <listheader>
/// <term>Value of <see cref="wlanConnectionMode"/></term>
/// <description>Contents of the profile string</description>
/// </listheader>
/// <item>
/// <term><see cref="WlanConnectionMode.Profile"/></term>
/// <description>The name of the profile used for the connection.</description>
/// </item>
/// <item>
/// <term><see cref="WlanConnectionMode.TemporaryProfile"/></term>
/// <description>The XML representation of the profile used for the connection.</description>
/// </item>
/// <item>
/// <term><see cref="WlanConnectionMode.DiscoverySecure"/>, <see cref="WlanConnectionMode.DiscoveryUnsecure"/> or <see cref="WlanConnectionMode.Auto"/></term>
/// <description><c>null</c></description>
/// </item>
/// </list>
/// </summary>
[MarshalAs(UnmanagedType.LPWStr)]
public string profile;
/// <summary>
/// Pointer to a <see cref="Dot11Ssid"/> structure that specifies the SSID of the network to connect to.
/// This field is optional. When set to <c>null</c>, all SSIDs in the profile will be tried.
/// This field must not be <c>null</c> if <see cref="wlanConnectionMode"/> is set to <see cref="WlanConnectionMode.DiscoverySecure"/> or <see cref="WlanConnectionMode.DiscoveryUnsecure"/>.
/// </summary>
public IntPtr dot11SsidPtr;
/// <summary>
/// Pointer to a <c>Dot11BssidList</c> structure that contains the list of basic service set (BSS) identifiers desired for the connection.
/// </summary>
/// <remarks>
/// On Windows XP SP2, must be set to <c>null</c>.
/// </remarks>
public IntPtr desiredBssidListPtr;
/// <summary>
/// A <see cref="Dot11BssType"/> value that indicates the BSS type of the network. If a profile is provided, this BSS type must be the same as the one in the profile.
/// </summary>
public Dot11BssType dot11BssType;
/// <summary>
/// Specifies ocnnection parameters.
/// </summary>
/// <remarks>
/// On Windows XP SP2, must be set to 0.
/// </remarks>
public WlanConnectionFlags flags;
}
/// <summary>
/// The connection state of an ad hoc network.
/// </summary>
public enum WlanAdhocNetworkState
{
/// <summary>
/// The ad hoc network has been formed, but no client or host is connected to the network.
/// </summary>
Formed = 0,
/// <summary>
/// A client or host is connected to the ad hoc network.
/// </summary>
Connected = 1
}
[DllImport("wlanapi.dll")]
public static extern int WlanConnect(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In] ref WlanConnectionParameters connectionParameters,
IntPtr pReserved);
[DllImport("wlanapi.dll")]
public static extern int WlanDeleteProfile(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In, MarshalAs(UnmanagedType.LPWStr)] string profileName,
IntPtr reservedPtr
);
[DllImport("wlanapi.dll")]
public static extern int WlanGetNetworkBssList(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In] IntPtr dot11SsidInt,
[In] Dot11BssType dot11BssType,
[In] bool securityEnabled,
IntPtr reservedPtr,
[Out] out IntPtr wlanBssList
);
[DllImport("wlanapi.dll")]
public static extern int WlanGetInterfaceCapability(
[In] IntPtr clientHandle,
[In, MarshalAs(UnmanagedType.LPStruct)] Guid interfaceGuid,
[In] IntPtr dot11SsidInt,
[Out] out IntPtr interfaceCapability
);
public enum WlanInterfaceType
{
//Specifies an emulated 802.11 interface.
wlan_interface_type_emulated_802_11 = 0,
//Specifies a native 802.11 interface.
wlan_interface_type_native_802_11,
//The interface specified is invalid.
wlan_interface_type_invalid
}
[StructLayout(LayoutKind.Sequential)]
public struct WlanInterfaceCapability
{
//A WLAN_INTERFACE_TYPE value that indicates the type of the interface.
public WlanInterfaceType wlanInterfaceType;
//Indicates whether 802.11d is supported by the interface. If TRUE, 802.11d is supported.
public bool bDot11DSupported;
//The maximum size of the SSID list supported by this interface.
public uint dwMaxDesiredSsidListSize;
//The maximum size of the basic service set (BSS) identifier list supported by this interface.
public uint dwMaxDesiredBssidListSize;
//Contains the number of supported PHY types.
public uint dwNumberOfSupportedPhys;
//An array of DOT11_PHY_TYPE values that specify the supported PHY types. WLAN_MAX_PHY_INDEX is set to 64.
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 64)]
public Dot11PhyType[] dot11PhyTypes;
}
[StructLayout(LayoutKind.Sequential)]
internal struct WlanBssListHeader
{
internal uint totalSize;
internal uint numberOfItems;
}
/// <summary>
/// Contains information about a basic service set (BSS).
/// </summary>
[StructLayout(LayoutKind.Sequential)]
public struct WlanBssEntry
{
/// <summary>
/// Contains the SSID of the access point (AP) associated with the BSS.
/// </summary>
public Dot11Ssid dot11Ssid;
/// <summary>
/// The identifier of the PHY on which the AP is operating.
/// </summary>
public uint phyId;
/// <summary>
/// Contains the BSS identifier.
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 6)]
public byte[] dot11Bssid;
/// <summary>
/// Specifies whether the network is infrastructure or ad hoc.
/// </summary>
public Dot11BssType dot11BssType;
public Dot11PhyType dot11BssPhyType;
/// <summary>
/// The received signal strength in dBm.
/// </summary>
public int rssi;
/// <summary>
/// The link quality reported by the driver. Ranges from 0-100.
/// </summary>
public uint linkQuality;
/// <summary>
/// If 802.11d is not implemented, the network interface card (NIC) must set this field to TRUE. If 802.11d is implemented (but not necessarily enabled), the NIC must set this field to TRUE if the BSS operation complies with the configured regulatory domain.
/// </summary>
public bool inRegDomain;
/// <summary>
/// Contains the beacon interval value from the beacon packet or probe response.
/// </summary>
public ushort beaconPeriod;
/// <summary>
/// The timestamp from the beacon packet or probe response.
/// </summary>
public ulong timestamp;
/// <summary>
/// The host timestamp value when the beacon or probe response is received.
/// </summary>
public ulong hostTimestamp;
/// <summary>
/// The capability value from the beacon packet or probe response.
/// </summary>
public ushort capabilityInformation;
/// <summary>
/// The frequency of the center channel, in kHz.
/// </summary>
public uint chCenterFrequency;
/// <summary>
/// Contains the set of data transfer rates supported by the BSS.
/// </summary>
public WlanRateSet wlanRateSet;
/// <summary>
/// The offset of the information element (IE) data blob.
/// </summary>
public uint ieOffset;
/// <summary>
/// The size of the IE data blob, in bytes.
/// </summary>
public uint ieSize;
}
/// <summary>
/// Extend information element
/// </summary>
public class WlanBssEntryN
{
public WlanBssEntry BaseEntry;
public byte[] IEs;
public WlanBssEntryN(WlanBssEntry bssEntry)
{
BaseEntry = bssEntry;
}
}
/// <summary>
/// Contains the set of supported data rates.
/// </summary>
[StructLayout(LayoutKind.Sequential)]
public struct WlanRateSet
{
/// <summary>
/// The length, in bytes, of <see cref="rateSet"/>.
/// </summary>
private uint rateSetLength;
/// <summary>
/// An array of supported data transfer rates.
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 126)]
private ushort[] rateSet;
/// <summary>
/// Gets an array of supported data transfer rates.
/// If the rate is a basic rate, the first bit of the rate value is set to 1.
/// A basic rate is the data transfer rate that all stations in a basic service set (BSS) can use to receive frames from the wireless medium.
/// </summary>
public ushort[] Rates
{
get
{
ushort[] rates = new ushort[rateSetLength];
Array.Copy(rateSet, rates, rates.Length);
return rates;
}
}
/// <summary>
/// Calculates the data transfer rate in mbit/s for a supported rate.
/// </summary>
/// <param name="rateIndex">The WLAN rate index (0-based).</param>
/// <returns>The data transfer rate in mbit/s.</returns>
/// <exception cref="ArgumentOutOfRangeException">Thrown if <param name="rateIndex"/> does not specify an existing rate.</exception>
public double GetRateInMbps(int rateIndex)
{
if ((rateIndex < 0) || (rateIndex > rateSet.Length))
throw new ArgumentOutOfRangeException("rateIndex");
return (rateSet[rateIndex] & 0x7FFF) * 0.5;
}
}
/// <summary>
/// Represents an error occuring during WLAN operations which indicate their failure via a <see cref="WlanReasonCode"/>.
/// </summary>
public class WlanException : Exception
{
private readonly WlanReasonCode reasonCode;
public WlanException(WlanReasonCode reasonCode)
{
this.reasonCode = reasonCode;
}
/// <summary>
/// Gets the WLAN reason code.
/// </summary>
/// <value>The WLAN reason code.</value>
public WlanReasonCode ReasonCode
{
get { return reasonCode; }
}
/// <summary>
/// Gets a message that describes the reason code.
/// </summary>
/// <value></value>
/// <returns>The error message that explains the reason for the exception, or an empty string("").</returns>
public override string Message
{
get
{
StringBuilder sb = new StringBuilder(1024);
return
WlanReasonCodeToString(reasonCode, sb.Capacity, sb, IntPtr.Zero) == 0 ?
sb.ToString() :
string.Empty;
}
}
}
// TODO: .NET-ify the WlanReasonCode enum (naming convention + docs).
/// <summary>
/// Defines reasons for a failure of a WLAN operation.
/// </summary>
/// <remarks>
/// Corresponds to the native reason code identifiers (<c>WLAN_REASON_CODE_xxx</c> identifiers).
/// </remarks>
public enum WlanReasonCode
{
Success = 0,
// general codes
UNKNOWN = 0x10000 + 1,
RANGE_SIZE = 0x10000,
BASE = 0x10000 + RANGE_SIZE,
// range for Auto Config
//
AC_BASE = 0x10000 + RANGE_SIZE,
AC_CONNECT_BASE = (AC_BASE + RANGE_SIZE / 2),
AC_END = (AC_BASE + RANGE_SIZE - 1),
// range for profile manager
// it has profile adding failure reason codes, but may not have
// connection reason codes
//
PROFILE_BASE = 0x10000 + (7 * RANGE_SIZE),
PROFILE_CONNECT_BASE = (PROFILE_BASE + RANGE_SIZE / 2),
PROFILE_END = (PROFILE_BASE + RANGE_SIZE - 1),
// range for MSM
//
MSM_BASE = 0x10000 + (2 * RANGE_SIZE),
MSM_CONNECT_BASE = (MSM_BASE + RANGE_SIZE / 2),
MSM_END = (MSM_BASE + RANGE_SIZE - 1),
// range for MSMSEC
//
MSMSEC_BASE = 0x10000 + (3 * RANGE_SIZE),
MSMSEC_CONNECT_BASE = (MSMSEC_BASE + RANGE_SIZE / 2),
MSMSEC_END = (MSMSEC_BASE + RANGE_SIZE - 1),
// AC network incompatible reason codes
//
NETWORK_NOT_COMPATIBLE = (AC_BASE + 1),
PROFILE_NOT_COMPATIBLE = (AC_BASE + 2),
// AC connect reason code
//
NO_AUTO_CONNECTION = (AC_CONNECT_BASE + 1),
NOT_VISIBLE = (AC_CONNECT_BASE + 2),
GP_DENIED = (AC_CONNECT_BASE + 3),
USER_DENIED = (AC_CONNECT_BASE + 4),