using System.Globalization;
namespace System.Net.NetworkInformation {
- public abstract class NetworkInterface {
+ static class SystemNetworkInterface {
static readonly NetworkInterfaceFactory nif = NetworkInterfaceFactory.Create ();
- protected NetworkInterface ()
- {
- }
-
- public static NetworkInterface [] GetAllNetworkInterfaces ()
+ public static NetworkInterface [] GetNetworkInterfaces ()
{
try {
return nif.GetAllNetworkInterfaces ();
}
}
- [MonoTODO("Always returns true")]
- public static bool GetIsNetworkAvailable ()
+ public static bool InternalGetIsNetworkAvailable ()
{
+ // TODO:
return true;
}
-
- public static int LoopbackInterfaceIndex {
+
+ public static int InternalLoopbackInterfaceIndex {
get {
return nif.GetLoopbackInterfaceIndex ();
}
}
- public abstract IPInterfaceProperties GetIPProperties ();
- public abstract IPv4InterfaceStatistics GetIPv4Statistics ();
- public abstract PhysicalAddress GetPhysicalAddress ();
- public abstract bool Supports (NetworkInterfaceComponent networkInterfaceComponent);
+ public static int InternalIPv6LoopbackInterfaceIndex {
+ get {
+ throw new NotImplementedException ();
+ }
+ }
- public abstract string Description { get; }
- public abstract string Id { get; }
- public abstract bool IsReceiveOnly { get; }
- public abstract string Name { get; }
- public abstract NetworkInterfaceType NetworkInterfaceType { get; }
- public abstract OperationalStatus OperationalStatus { get; }
- public abstract long Speed { get; }
- public abstract bool SupportsMulticast { get; }
+ public static IPAddress GetNetMask (IPAddress address)
+ {
+ return nif.GetNetMask (address);
+ }
}
abstract class NetworkInterfaceFactory
class MacOsNetworkInterfaceAPI : UnixNetworkInterfaceAPI
{
+ const int AF_INET = 2;
+ const int AF_INET6 = 30;
+ const int AF_LINK = 18;
+
public override NetworkInterface [] GetAllNetworkInterfaces ()
{
- const int AF_INET = 2;
- const int AF_INET6 = 30;
- const int AF_LINK = 18;
-
var interfaces = new Dictionary <string, MacOsNetworkInterface> ();
IntPtr ifap;
if (getifaddrs (out ifap) != 0)
{
return if_nametoindex ("lo0");
}
+
+ public override IPAddress GetNetMask (IPAddress address)
+ {
+ IntPtr ifap;
+ if (getifaddrs (out ifap) != 0)
+ throw new SystemException ("getifaddrs() failed");
+
+ try {
+ IntPtr next = ifap;
+ while (next != IntPtr.Zero) {
+ MacOsStructs.ifaddrs addr = (MacOsStructs.ifaddrs) Marshal.PtrToStructure (next, typeof (MacOsStructs.ifaddrs));
+
+ if (addr.ifa_addr != IntPtr.Zero) {
+ // optain IPAddress
+ MacOsStructs.sockaddr sockaddr = (MacOsStructs.sockaddr) Marshal.PtrToStructure (addr.ifa_addr, typeof (MacOsStructs.sockaddr));
+
+ if (sockaddr.sa_family == AF_INET) {
+ MacOsStructs.sockaddr_in sockaddrin = (MacOsStructs.sockaddr_in) Marshal.PtrToStructure (addr.ifa_addr, typeof (MacOsStructs.sockaddr_in));
+ var saddress = new IPAddress (sockaddrin.sin_addr);
+ if (address.Equals (saddress))
+ return new IPAddress(((sockaddr_in)Marshal.PtrToStructure(addr.ifa_netmask, typeof(sockaddr_in))).sin_addr);
+ }
+ }
+ next = addr.ifa_next;
+ }
+ } finally {
+ freeifaddrs (ifap);
+ }
+
+ return null;
+ }
}
class LinuxNetworkInterfaceAPI : UnixNetworkInterfaceAPI
{
+ const int AF_INET = 2;
+ const int AF_INET6 = 10;
+ const int AF_PACKET = 17;
+
static void FreeInterfaceAddresses (IntPtr ifap)
{
#if MONODROID
public override NetworkInterface [] GetAllNetworkInterfaces ()
{
- const int AF_INET = 2;
- const int AF_INET6 = 10;
- const int AF_PACKET = 17;
var interfaces = new Dictionary <string, LinuxNetworkInterface> ();
IntPtr ifap;
{
return if_nametoindex ("lo");
}
+
+ public override IPAddress GetNetMask (IPAddress address)
+ {
+ foreach (ifaddrs networkInteface in GetNetworkInterfaces()) {
+ if (networkInteface.ifa_addr == IntPtr.Zero)
+ continue;
+
+ var sockaddr = (sockaddr_in)Marshal.PtrToStructure(networkInteface.ifa_addr, typeof(sockaddr_in));
+
+ if (sockaddr.sin_family != AF_INET)
+ continue;
+
+ if (!address.Equals(new IPAddress(sockaddr.sin_addr)))
+ continue;
+
+ var netmask = (sockaddr_in)Marshal.PtrToStructure(networkInteface.ifa_netmask, typeof(sockaddr_in));
+ return new IPAddress(netmask.sin_addr);
+ }
+
+ return null;
+ }
+
+ private static IEnumerable<ifaddrs> GetNetworkInterfaces()
+ {
+ IntPtr ifap = IntPtr.Zero;
+
+ try {
+ if (GetInterfaceAddresses(out ifap) != 0)
+ yield break;
+
+ var next = ifap;
+ while (next != IntPtr.Zero) {
+ var addr = (ifaddrs)Marshal.PtrToStructure(next, typeof(ifaddrs));
+ yield return addr;
+ next = addr.ifa_next;
+ }
+ } finally {
+ if (ifap != IntPtr.Zero)
+ FreeInterfaceAddresses(ifap);
+ }
+ }
}
+#if !MOBILE
class Win32NetworkInterfaceAPI : NetworkInterfaceFactory
{
- [DllImport ("iphlpapi.dll", SetLastError = true)]
+ private const string IPHLPAPI = "iphlpapi.dll";
+
+ [DllImport (IPHLPAPI, SetLastError = true)]
static extern int GetAdaptersAddresses (uint family, uint flags, IntPtr reserved, byte [] info, ref int size);
+ [DllImport (IPHLPAPI)]
+ static extern uint GetBestInterfaceEx (byte[] ipAddress, out int index);
+
unsafe static Win32_IP_ADAPTER_ADDRESSES [] GetAdaptersAddresses ()
{
byte [] bytes = null;
return ret;
}
+ private static int GetBestInterfaceForAddress (IPAddress addr) {
+ int index;
+ SocketAddress address = new SocketAddress (addr);
+ int error = (int) GetBestInterfaceEx (address.m_Buffer, out index);
+ if (error != 0) {
+ throw new NetworkInformationException (error);
+ }
+
+ return index;
+ }
+
public override int GetLoopbackInterfaceIndex ()
+ {
+ return GetBestInterfaceForAddress (IPAddress.Loopback);
+ }
+
+ public override IPAddress GetNetMask (IPAddress address)
{
throw new NotImplementedException ();
}
}
+#endif
public abstract NetworkInterface [] GetAllNetworkInterfaces ();
public abstract int GetLoopbackInterfaceIndex ();
+ public abstract IPAddress GetNetMask (IPAddress address);
public static NetworkInterfaceFactory Create ()
{
-#if MONOTOUCH
+#if MONOTOUCH || XAMMAC
return new MacOsNetworkInterfaceAPI ();
#else
Version windowsVer51 = new Version (5, 1);
return new LinuxNetworkInterfaceAPI ();
}
+#if !MOBILE
if (Environment.OSVersion.Version >= windowsVer51)
return new Win32NetworkInterfaceAPI ();
+#endif
throw new NotImplementedException ();
#endif
string iface_operstate_path;
string iface_flags_path;
+#if MONODROID
+ [DllImport ("__Internal")]
+ protected static extern int _monodroid_get_android_api_level ();
+
+ [DllImport ("__Internal")]
+ protected static extern bool _monodroid_get_network_interface_up_state (string ifname, ref bool is_up);
+
+ [DllImport ("__Internal")]
+ protected static extern bool _monodroid_get_network_interface_supports_multicast (string ifname, ref bool supports_multicast);
+
+ bool android_use_java_api;
+#endif
+
internal string IfacePath {
get { return iface_path; }
}
iface_path = "/sys/class/net/" + name + "/";
iface_operstate_path = iface_path + "operstate";
iface_flags_path = iface_path + "flags";
+#if MONODROID
+ android_use_java_api = _monodroid_get_android_api_level () >= 24;
+#endif
}
public override IPInterfaceProperties GetIPProperties ()
public override OperationalStatus OperationalStatus {
get {
+#if MONODROID
+ if (android_use_java_api) {
+ // Starting from API 24 (Android 7 "Nougat") Android restricts access to many
+ // files in the /sys filesystem (see https://code.google.com/p/android/issues/detail?id=205565
+ // for more information) and therefore we are forced to call into Java API in
+ // order to get the information. Alas, what we can obtain in this way is quite
+ // limited. In the case of OperationalStatus we can only determine whether the
+ // interface is up or down. There is a way to get more detailed information but
+ // it requires an instance of the Android Context class which is not available
+ // to us here.
+ bool is_up = false;
+ if (_monodroid_get_network_interface_up_state (Name, ref is_up))
+ return is_up ? OperationalStatus.Up : OperationalStatus.Down;
+ else
+ return OperationalStatus.Unknown;
+ }
+#endif
if (!Directory.Exists (iface_path))
return OperationalStatus.Unknown;
public override bool SupportsMulticast {
get {
+#if MONODROID
+ if (android_use_java_api) {
+ // Starting from API 24 (Android 7 "Nougat") Android restricts access to many
+ // files in the /sys filesystem (see https://code.google.com/p/android/issues/detail?id=205565
+ // for more information) and therefore we are forced to call into Java API in
+ // order to get the information.
+ bool supports_multicast = false;
+ _monodroid_get_network_interface_supports_multicast (Name, ref supports_multicast);
+ return supports_multicast;
+ }
+#endif
if (!Directory.Exists (iface_path))
return false;
}
}
+#if !MOBILE
class Win32NetworkInterface2 : NetworkInterface
{
[DllImport ("iphlpapi.dll", SetLastError = true)]
get { return !addr.NoMulticast; }
}
}
+#endif
}
projects / mono.git / blobdiff