public override NetworkInterface [] GetAllNetworkInterfaces()
{
var interfaces = new Dictionary <string, AixNetworkInterface> ();
AixStructs.ifconf ifc;
ifc.ifc_len = 0;
ifc.ifc_buf = IntPtr.Zero;
int sockfd = -1;
try {
sockfd = socket(AixAddressFamily.AF_INET, SOCK_DGRAM, 0);
if (sockfd == -1)
{
throw new SystemException("socket for SIOCGIFCONF failed");
}
if (ioctl(sockfd, AixIoctlRequest.SIOCGSIZIFCONF, ref ifc.ifc_len) < 0 || ifc.ifc_len < 1)
{
throw new SystemException("ioctl for SIOCGSIZIFCONF failed");
}
ifc.ifc_buf = Marshal.AllocHGlobal(ifc.ifc_len);
if (ioctl(sockfd, AixIoctlRequest.SIOCGIFCONF, ref ifc) < 0)
{
throw new SystemException("ioctl for SIOCGIFCONF failed");
}
// this is required because the buffer is an array of VARIABLE LENGTH structures, so sane marshalling is impossible
AixStructs.ifreq ifr;
var curPos = ifc.ifc_buf;
var endPos = ifc.ifc_buf.ToInt64() + ifc.ifc_len;
for (ifr = (AixStructs.ifreq)Marshal.PtrToStructure(curPos, typeof(AixStructs.ifreq));
curPos.ToInt64() < endPos;
// name length + sockaddr length (SIOCGIFCONF only deals in those)
curPos = curPos + (16 + ifr.ifru_addr.sa_len))
{
// update the structure for next increment
ifr = (AixStructs.ifreq)Marshal.PtrToStructure(curPos, typeof(AixStructs.ifreq));
// the goods
IPAddress address = IPAddress.None;
string name = null;
int index = -1;
byte[] macAddress = null;
var type = NetworkInterfaceType.Unknown;
unsafe {
name = Marshal.PtrToStringAnsi(new IntPtr(ifr.ifr_name));
}
if (Enum.IsDefined(typeof(AixAddressFamily), (int)ifr.ifru_addr.sa_family))
{
switch ((AixAddressFamily)ifr.ifru_addr.sa_family)
{
case AixAddressFamily.AF_INET:
AixStructs.sockaddr_in sockaddrin =
(AixStructs.sockaddr_in)Marshal.PtrToStructure(curPos + 16, typeof(AixStructs.sockaddr_in));
address = new IPAddress(sockaddrin.sin_addr);
break;
case AixAddressFamily.AF_INET6:
AixStructs.sockaddr_in6 sockaddr6 =
(AixStructs.sockaddr_in6)Marshal.PtrToStructure(curPos + 16, typeof(AixStructs.sockaddr_in6));
address = new IPAddress(sockaddr6.sin6_addr.u6_addr8, sockaddr6.sin6_scope_id);
break;
// XXX: i never returns AF_LINK and SIOCGIFCONF under i doesn't return nameindex values; adapt MacOsNetworkInterface for Qp2getifaddrs instead
case AixAddressFamily.AF_LINK:
AixStructs.sockaddr_dl sockaddrdl = new AixStructs.sockaddr_dl();
sockaddrdl.Read(curPos + 16);
macAddress = new byte [(int)sockaddrdl.sdl_alen];
// copy mac address from sdl_data field starting at last index pos of interface name into array macaddress, starting
// at index 0
Array.Copy(sockaddrdl.sdl_data, sockaddrdl.sdl_nlen, macAddress, 0, Math.Min(macAddress.Length, sockaddrdl.sdl_data.Length - sockaddrdl.sdl_nlen));
index = sockaddrdl.sdl_index;
int hwtype = (int)sockaddrdl.sdl_type;
if (Enum.IsDefined(typeof(AixArpHardware), hwtype))
{
switch ((AixArpHardware)hwtype)
{
case AixArpHardware.ETHER:
type = NetworkInterfaceType.Ethernet;
break;
case AixArpHardware.ATM:
type = NetworkInterfaceType.Atm;
break;
case AixArpHardware.SLIP:
type = NetworkInterfaceType.Slip;
break;
case AixArpHardware.PPP:
type = NetworkInterfaceType.Ppp;
break;
case AixArpHardware.LOOPBACK:
type = NetworkInterfaceType.Loopback;
macAddress = null;
break;
case AixArpHardware.FDDI:
type = NetworkInterfaceType.Fddi;
break;
}
}
break;
default: break;
}
}
// get flags
uint flags = 0;
int mtu = 0;
unsafe {
AixStructs.ifreq_flags ifrFlags = new AixStructs.ifreq_flags();
ByteArrayCopy(ifrFlags.ifr_name, ifr.ifr_name, 16);
if (ioctl(sockfd, AixIoctlRequest.SIOCGIFFLAGS, ref ifrFlags) < 0)
{
throw new SystemException("ioctl for SIOCGIFFLAGS failed");
}
else
{
flags = ifrFlags.ifru_flags;
}
AixStructs.ifreq_mtu ifrMtu = new AixStructs.ifreq_mtu();
ByteArrayCopy(ifrMtu.ifr_name, ifr.ifr_name, 16);
if (ioctl(sockfd, AixIoctlRequest.SIOCGIFMTU, ref ifrMtu) < 0)
{
// it's not the end of the world if we don't get it
}
else
{
mtu = ifrMtu.ifru_mtu;
}
}
AixNetworkInterface iface = null;
// create interface if not already present
if (!interfaces.TryGetValue(name, out iface))
{
iface = new AixNetworkInterface(name, flags, mtu);
interfaces.Add(name, iface);
}
// if a new address has been found, add it
if (!address.Equals(IPAddress.None))
{
iface.AddAddress(address);
}
// set link layer info, if iface has macaddress or is loopback device
if (macAddress != null || type == NetworkInterfaceType.Loopback)
{
iface.SetLinkLayerInfo(index, macAddress, type);
}
}
} finally {
if (ifc.ifc_buf != IntPtr.Zero)
{
Marshal.FreeHGlobal(ifc.ifc_buf);
}
if (sockfd != -1)
{
close(sockfd);
}
}
NetworkInterface [] result = new NetworkInterface [interfaces.Count];
int x = 0;
foreach (NetworkInterface thisInterface in interfaces.Values)
{
result [x] = thisInterface;
x++;
}
return(result);
}
public static extern int ioctl(int fd, AixIoctlRequest request, ref AixStructs.ifreq_flags arg);