private IPAddressCollection GetWinsServerAddresses()
{
InternalIPAddressCollection collection = new InternalIPAddressCollection();
try
{
string fileContents = File.ReadAllText(NetworkFiles.SmbConfFile);
string label = "wins server = ";
int labelIndex = fileContents.IndexOf(label);
int labelLineStart = fileContents.LastIndexOf(Environment.NewLine, labelIndex);
if (labelLineStart < labelIndex)
{
int commentIndex = fileContents.IndexOf(';', labelLineStart, labelIndex - labelLineStart);
if (commentIndex != -1)
{
return(collection);
}
}
int endOfLine = fileContents.IndexOf(Environment.NewLine, labelIndex);
string addressString = fileContents.Substring(labelIndex + label.Length, endOfLine - (labelIndex + label.Length));
IPAddress address = IPAddress.Parse(addressString);
collection.InternalAdd(address);
}
catch
{
// If any parsing or file reading exception occurs, just ignore it and return the collection.
}
return(collection);
}
private IPAddressCollection GetDhcpServerAddresses()
{
// Parse the /var/lib/dhcp/dhclient.leases file, if it exists.
// If any errors occur, like the file not existing or being
// improperly formatted, just bail and return an empty collection.
InternalIPAddressCollection collection = new InternalIPAddressCollection();
try
{
string fileContents = File.ReadAllText(NetworkFiles.DHClientLeasesFile);
int leaseIndex = -1;
int secondBrace = -1;
while ((leaseIndex = fileContents.IndexOf("lease", leaseIndex + 1)) != -1)
{
int firstBrace = fileContents.IndexOf("{", leaseIndex);
secondBrace = fileContents.IndexOf("}", leaseIndex);
int blockLength = secondBrace - firstBrace;
int interfaceIndex = fileContents.IndexOf("interface", firstBrace, blockLength);
int afterName = fileContents.IndexOf(';', interfaceIndex);
int beforeName = fileContents.LastIndexOf(' ', afterName);
string interfaceName = fileContents.Substring(beforeName + 2, afterName - beforeName - 3);
if (interfaceName != _linuxNetworkInterface.Name)
{
continue;
}
int indexOfDhcp = fileContents.IndexOf("dhcp-server-identifier", firstBrace, blockLength);
int afterAddress = fileContents.IndexOf(";", indexOfDhcp);
int beforeAddress = fileContents.LastIndexOf(' ', afterAddress);
string dhcpAddressString = fileContents.Substring(beforeAddress + 1, afterAddress - beforeAddress - 1);
IPAddress dhcpAddress;
if (IPAddress.TryParse(dhcpAddressString, out dhcpAddress))
{
collection.InternalAdd(dhcpAddress);
}
}
}
catch
{
// If any parsing or file reading exception occurs, just ignore it and return the collection.
}
return(collection);
}
internal SystemIPInterfaceProperties(Interop.IpHlpApi.FIXED_INFO fixedInfo, Interop.IpHlpApi.IpAdapterAddresses ipAdapterAddresses)
{
_adapterFlags = ipAdapterAddresses.flags;
_dnsSuffix = ipAdapterAddresses.dnsSuffix;
_dnsEnabled = fixedInfo.enableDns;
_dynamicDnsEnabled = ((ipAdapterAddresses.flags & Interop.IpHlpApi.AdapterFlags.DnsEnabled) > 0);
_multicastAddresses = SystemMulticastIPAddressInformation.ToMulticastIpAddressInformationCollection(
Interop.IpHlpApi.IpAdapterAddress.MarshalIpAddressInformationCollection(ipAdapterAddresses.firstMulticastAddress));
_dnsAddresses = Interop.IpHlpApi.IpAdapterAddress.MarshalIpAddressCollection(ipAdapterAddresses.firstDnsServerAddress);
_anycastAddresses = Interop.IpHlpApi.IpAdapterAddress.MarshalIpAddressInformationCollection(
ipAdapterAddresses.firstAnycastAddress);
_unicastAddresses = SystemUnicastIPAddressInformation.MarshalUnicastIpAddressInformationCollection(
ipAdapterAddresses.firstUnicastAddress);
_winsServersAddresses = Interop.IpHlpApi.IpAdapterAddress.MarshalIpAddressCollection(
ipAdapterAddresses.firstWinsServerAddress);
_gatewayAddresses = SystemGatewayIPAddressInformation.ToGatewayIpAddressInformationCollection(
Interop.IpHlpApi.IpAdapterAddress.MarshalIpAddressCollection(ipAdapterAddresses.firstGatewayAddress));
_dhcpServers = new InternalIPAddressCollection();
if (ipAdapterAddresses.dhcpv4Server.address != IntPtr.Zero)
{
_dhcpServers.InternalAdd(ipAdapterAddresses.dhcpv4Server.MarshalIPAddress());
}
if (ipAdapterAddresses.dhcpv6Server.address != IntPtr.Zero)
{
_dhcpServers.InternalAdd(ipAdapterAddresses.dhcpv6Server.MarshalIPAddress());
}
if ((_adapterFlags & Interop.IpHlpApi.AdapterFlags.IPv4Enabled) != 0)
{
_ipv4Properties = new SystemIPv4InterfaceProperties(fixedInfo, ipAdapterAddresses);
}
if ((_adapterFlags & Interop.IpHlpApi.AdapterFlags.IPv6Enabled) != 0)
{
_ipv6Properties = new SystemIPv6InterfaceProperties(ipAdapterAddresses.ipv6Index,
ipAdapterAddresses.mtu, ipAdapterAddresses.zoneIndices);
}
}
internal SystemIPInterfaceProperties(Interop.IpHlpApi.FIXED_INFO fixedInfo, Interop.IpHlpApi.IpAdapterAddresses ipAdapterAddresses)
{
_adapterFlags = ipAdapterAddresses.flags;
_dnsSuffix = ipAdapterAddresses.dnsSuffix;
_dnsEnabled = fixedInfo.enableDns;
_dynamicDnsEnabled = ((ipAdapterAddresses.flags & Interop.IpHlpApi.AdapterFlags.DnsEnabled) > 0);
_multicastAddresses = SystemMulticastIPAddressInformation.ToMulticastIpAddressInformationCollection(
Interop.IpHlpApi.IpAdapterAddress.MarshalIpAddressInformationCollection(ipAdapterAddresses.firstMulticastAddress));
_dnsAddresses = Interop.IpHlpApi.IpAdapterAddress.MarshalIpAddressCollection(ipAdapterAddresses.firstDnsServerAddress);
_anycastAddresses = Interop.IpHlpApi.IpAdapterAddress.MarshalIpAddressInformationCollection(
ipAdapterAddresses.firstAnycastAddress);
_unicastAddresses = SystemUnicastIPAddressInformation.MarshalUnicastIpAddressInformationCollection(
ipAdapterAddresses.firstUnicastAddress);
_winsServersAddresses = Interop.IpHlpApi.IpAdapterAddress.MarshalIpAddressCollection(
ipAdapterAddresses.firstWinsServerAddress);
_gatewayAddresses = SystemGatewayIPAddressInformation.ToGatewayIpAddressInformationCollection(
Interop.IpHlpApi.IpAdapterAddress.MarshalIpAddressCollection(ipAdapterAddresses.firstGatewayAddress));
_dhcpServers = new InternalIPAddressCollection();
if (ipAdapterAddresses.dhcpv4Server.address != IntPtr.Zero)
{
_dhcpServers.InternalAdd(ipAdapterAddresses.dhcpv4Server.MarshalIPAddress());
}
if (ipAdapterAddresses.dhcpv6Server.address != IntPtr.Zero)
{
_dhcpServers.InternalAdd(ipAdapterAddresses.dhcpv6Server.MarshalIPAddress());
}
if ((_adapterFlags & Interop.IpHlpApi.AdapterFlags.IPv4Enabled) != 0)
{
_ipv4Properties = new SystemIPv4InterfaceProperties(fixedInfo, ipAdapterAddresses);
}
if ((_adapterFlags & Interop.IpHlpApi.AdapterFlags.IPv6Enabled) != 0)
{
_ipv6Properties = new SystemIPv6InterfaceProperties(ipAdapterAddresses.ipv6Index,
ipAdapterAddresses.mtu, ipAdapterAddresses.zoneIndices);
}
}
private static IPAddressCollection GetDnsAddresses()
{
// Parse /etc/resolv.conf for all of the "nameserver" entries.
// These are the DNS servers the machine is configured to use.
// On OSX, this file is not directly used by most processes for DNS
// queries/routing, but it is automatically generated instead, with
// the machine's DNS servers listed in it.
string data = File.ReadAllText(NetworkFiles.EtcResolvConfFile);
RowConfigReader rcr = new RowConfigReader(data);
InternalIPAddressCollection addresses = new InternalIPAddressCollection();
string addressString = null;
while (rcr.TryGetNextValue("nameserver", out addressString))
{
IPAddress parsedAddress;
if (IPAddress.TryParse(addressString, out parsedAddress))
{
addresses.InternalAdd(parsedAddress);
}
}
return(addresses);
}
private static IPAddressCollection GetDnsAddresses()
{
// Parse /etc/resolv.conf for all of the "nameserver" entries.
// These are the DNS servers the machine is configured to use.
// On OSX, this file is not directly used by most processes for DNS
// queries/routing, but it is automatically generated instead, with
// the machine's DNS servers listed in it.
string data = File.ReadAllText(NetworkFiles.EtcResolvConfFile);
RowConfigReader rcr = new RowConfigReader(data);
InternalIPAddressCollection addresses = new InternalIPAddressCollection();
string addressString = null;
while (rcr.TryGetNextValue("nameserver", out addressString))
{
IPAddress parsedAddress;
if (IPAddress.TryParse(addressString, out parsedAddress))
{
addresses.InternalAdd(parsedAddress);
}
}
return addresses;
}
private IPAddressCollection GetDhcpServerAddresses()
{
// Parse the /var/lib/dhcp/dhclient.leases file, if it exists.
// If any errors occur, like the file not existing or being
// improperly formatted, just bail and return an empty collection.
InternalIPAddressCollection collection = new InternalIPAddressCollection();
try
{
string fileContents = File.ReadAllText(NetworkFiles.DHClientLeasesFile);
int leaseIndex = -1;
int secondBrace = -1;
while ((leaseIndex = fileContents.IndexOf("lease", leaseIndex + 1)) != -1)
{
int firstBrace = fileContents.IndexOf("{", leaseIndex);
secondBrace = fileContents.IndexOf("}", leaseIndex);
int blockLength = secondBrace - firstBrace;
int interfaceIndex = fileContents.IndexOf("interface", firstBrace, blockLength);
int afterName = fileContents.IndexOf(';', interfaceIndex);
int beforeName = fileContents.LastIndexOf(' ', afterName);
string interfaceName = fileContents.Substring(beforeName + 2, afterName - beforeName - 3);
if (interfaceName != _linuxNetworkInterface.Name)
{
continue;
}
int indexOfDhcp = fileContents.IndexOf("dhcp-server-identifier", firstBrace, blockLength);
int afterAddress = fileContents.IndexOf(";", indexOfDhcp);
int beforeAddress = fileContents.LastIndexOf(' ', afterAddress);
string dhcpAddressString = fileContents.Substring(beforeAddress + 1, afterAddress - beforeAddress - 1);
IPAddress dhcpAddress;
if (IPAddress.TryParse(dhcpAddressString, out dhcpAddress))
{
collection.InternalAdd(dhcpAddress);
}
}
}
catch
{
// If any parsing or file reading exception occurs, just ignore it and return the collection.
}
return collection;
}
private IPAddressCollection GetWinsServerAddresses()
{
InternalIPAddressCollection collection = new InternalIPAddressCollection();
try
{
string fileContents = File.ReadAllText(NetworkFiles.SmbConfFile);
string label = "wins server = ";
int labelIndex = fileContents.IndexOf(label);
int labelLineStart = fileContents.LastIndexOf(Environment.NewLine, labelIndex);
if (labelLineStart < labelIndex)
{
int commentIndex = fileContents.IndexOf(';', labelLineStart, labelIndex - labelLineStart);
if (commentIndex != -1)
{
return collection;
}
}
int endOfLine = fileContents.IndexOf(Environment.NewLine, labelIndex);
string addressString = fileContents.Substring(labelIndex + label.Length, endOfLine - (labelIndex + label.Length));
IPAddress address = IPAddress.Parse(addressString);
collection.InternalAdd(address);
}
catch
{
// If any parsing or file reading exception occurs, just ignore it and return the collection.
}
return collection;
}
internal static InternalIPAddressCollection MarshalIpAddressCollection(IntPtr ptr)
{
InternalIPAddressCollection addressList = new InternalIPAddressCollection();
while (ptr != IntPtr.Zero)
{
IpAdapterAddress addressStructure = Marshal.PtrToStructure<IpAdapterAddress>(ptr);
IPAddress address = addressStructure.address.MarshalIPAddress();
addressList.InternalAdd(address);
ptr = addressStructure.next;
}
return addressList;
}
