// /** // * File: RadiusAttribute.cs // * Author: haraldwolff // * // * This file and it's content is copyrighted by the Author and / or copyright holder. // * Any use wihtout proper permission is illegal and may lead to legal actions. // * // * // **/ using System; using System.IO; using ln.types; using System.Collections.Generic; using System.Text; using ln.types.net; namespace ln.radius { public delegate RadiusAttribute RadiusAttributeFactory(byte attributeType); public class RadiusAttribute { public byte Type { get; private set; } public string Name => AttributeName(Type); public virtual byte[] Bytes { get; set; } public String AsText { get => Encoding.UTF8.GetString(Bytes); set => Bytes = Encoding.UTF8.GetBytes(value); } public RadiusAttribute(byte type) { Type = type; } public byte[] ToBytes() { byte[] vBytes = Bytes; byte[] bytes = new byte[vBytes.Length + 2]; bytes[0] = Type; bytes[1] = (byte)bytes.Length; Array.Copy(vBytes, 0, bytes, 2, vBytes.Length); return bytes; } public RadiusAttribute SetBytes(byte[] bytes) { this.Bytes = bytes; return this; } public RadiusAttribute SetText(string text) { this.AsText = text; return this; } public static RadiusAttribute Read(Stream stream) { byte atype = (byte)stream.ReadByte(); byte alength = (byte)stream.ReadByte(); byte[] abytes = stream.ReadBytes(alength - 2); RadiusAttribute radiusAttribute = RadiusAttribute.Create(atype); radiusAttribute.Bytes = abytes; return radiusAttribute; } public override string ToString() { foreach (byte by in Bytes) { if (by < 0x20) return String.Format("[RadiusAttribute Type={0} {1}]", Name, BitConverter.ToString(Bytes)); } return String.Format("[RadiusAttribute Type={0} {1}]", Name, Encoding.ASCII.GetString(Bytes)); } static internal Dictionary attributeNames = new Dictionary(); static internal Dictionary attributeFactories = new Dictionary(); public static RadiusAttribute Create(byte attributeType) { if (attributeFactories.ContainsKey(attributeType)) return attributeFactories[attributeType](attributeType); return new RadiusAttribute(attributeType); } public static String AttributeName(byte type) { if (attributeNames.ContainsKey(type)) return attributeNames[type]; return type.ToString(); } public static void RegisterAttributeFactory(byte attributeType, string attributeName, RadiusAttributeFactory factory) { attributeFactories.Add(attributeType, factory); attributeNames.Add(attributeType, attributeName); } static RadiusAttribute() { RegisterAttributeFactory(0x01, "User-Name", (type) => new UserName()); RegisterAttributeFactory(0x02, "User-Password", (type) => new UserPassword()); RegisterAttributeFactory(0x03, "CHAP-Password", (type) => new ChapPassword()); RegisterAttributeFactory(0x04, "NAS-IP-Address", (type) => new NASIPAddress()); RegisterAttributeFactory(0x05, "NAS-Port", (type) => new NASPort()); RegisterAttributeFactory(0x06, "Service-Type", (type) => new ServiceType()); RegisterAttributeFactory(0x07, "Framed-Protocol", (type) => new FramedProtocol()); RegisterAttributeFactory(0x08, "Framed-IP-Address", (type) => new FramedIPAddress()); RegisterAttributeFactory(0x09, "Framed-IP-Netmask", (type) => new FramedIPNetmask()); RegisterAttributeFactory(0x0A, "Framed-Routing", (type) => new FramedRouting()); RegisterAttributeFactory(0x0B, "Filter-Id", (type) => new FilterID()); RegisterAttributeFactory(0x0C, "Framed-MTU", (type) => new FramedMTU()); RegisterAttributeFactory(0x0D, "Framed-Compression", (type) => new FramedCompression()); RegisterAttributeFactory(0x0E, "Login-IP-Host", (type) => new LoginIPHost()); RegisterAttributeFactory(0x0F, "Login-Service", (type) => new LoginService()); RegisterAttributeFactory(0x10, "Login-TCP-Port", (type) => new LoginTCPPort()); //RegisterAttributeFactory(0x11, "", (type) => new RadiusAttribute(type)); // Reserved RegisterAttributeFactory(0x12, "Reply-Message", (type) => new ReplyMessage()); RegisterAttributeFactory(0x13, "Callback-Number", (type) => new CallbackNumber()); RegisterAttributeFactory(0x14, "Callback-Id", (type) => new CallbackID()); //RegisterAttributeFactory(0x15, "", (type) => new RadiusAttribute(type)); // Reserved RegisterAttributeFactory(0x16, "Framed-Route", (type) => new FramedRoute()); RegisterAttributeFactory(0x17, "Framed-IPX-Network", (type) => new FramedIPXNetwork()); RegisterAttributeFactory(0x18, "State", (type) => new State()); RegisterAttributeFactory(0x19, "Class", (type) => new Class()); RegisterAttributeFactory(0x1A, "Vendor-Specific", (type) => new VendorSpecific()); RegisterAttributeFactory(0x1B, "Session-Timeout", (type) => new SessionTimeout()); RegisterAttributeFactory(0x1C, "Idle-Timeout", (type) => new IdleTimeout()); RegisterAttributeFactory(0x1D, "Termination-Action", (type) => new TerminationAction()); RegisterAttributeFactory(0x1E, "Called-Station-Id", (type) => new CalledStationID()); RegisterAttributeFactory(0x1F, "Calling-Station-Id", (type) => new CallingStationID()); RegisterAttributeFactory(0x20, "NAS-Identifier", (type) => new NASIdentifier()); RegisterAttributeFactory(0x21, "Proxy-State", (type) => new ProxyState()); RegisterAttributeFactory(0x22, "Login-LAT-Service", (type) => new LoginLATService()); RegisterAttributeFactory(0x23, "Login-LAT-Node", (type) => new LoginLATNode()); RegisterAttributeFactory(0x24, "Login-LAT-Group", (type) => new LoginLATGroup()); RegisterAttributeFactory(0x25, "Framed-AppleTalk-Link", (type) => new FramedAppleTalkLink()); RegisterAttributeFactory(0x26, "Framed-AppleTalk-Network", (type) => new FramedAppleTalkNetwork()); RegisterAttributeFactory(0x27, "Framed-AppleTalk-Zone", (type) => new FramedAppleTalkZone()); RegisterAttributeFactory(0x3C, "CHAP-Challenge", (type) => new ChapChallenge()); RegisterAttributeFactory(0x3D, "NAS-Port-Type", (type) => new NASPortType()); RegisterAttributeFactory(0x3E, "Port-Limit", (type) => new PortLimit()); RegisterAttributeFactory(0x3F, "Login-LAT-Port", (type) => new LoginLATPort()); } public class TextAttribute : RadiusAttribute { public TextAttribute(byte type) : base(type) { } public override string ToString() { return string.Format("[RadiusAttribute Type={0} {1}]", Name, AsText); } } public class IPv4Attribute : RadiusAttribute { public IPv4 IP { get; set; } public override byte[] Bytes { get => IP.IPBytes; set => IP = new IPv4(value); } public IPv4Attribute(byte type) : base(type) { } public override string ToString() { return string.Format("[RadiusAttribute Type={0} {1}]", Name, IP.ToString()); } public IPv4Attribute SetIP(IPv4 ip) { this.IP = ip; return this; } } public class IntAttribute : RadiusAttribute { public UInt32 UInt32 { get; set; } public override byte[] Bytes { get => UInt32.GetBytes(true); set => UInt32 = BitConverter.ToUInt32(value.BigEndian(), 0); } public IntAttribute(byte type) : base(type) { } public override string ToString() { return string.Format("[RadiusAttribute Type={0} {1}]", Name, UInt32); } public IntAttribute SetUInt(uint value) { this.UInt32 = value; return this; } } public class TimeAttribute : RadiusAttribute { DateTimeOffset DateTimeOffset { get; set; } public override byte[] Bytes { get => ((uint)DateTimeOffset.ToUnixTimeSeconds()).GetBytes(true); set => DateTimeOffset = DateTimeOffset.FromUnixTimeSeconds(BitConverter.ToUInt32(value.BigEndian(), 0)); } public TimeAttribute(byte type) : base(type) { } public override string ToString() { return string.Format("[RadiusAttribute Type={0} {1}]", Name, DateTimeOffset); } } /* */ public class UserName : RadiusAttribute { public UserName() : base(0x01) { } } public class UserPassword : RadiusAttribute { public UserPassword() : base(0x02) { } } public class ChapPassword : RadiusAttribute { public ChapPassword() : base(0x03) { } } public class NASIPAddress : IPv4Attribute { public NASIPAddress() : base(0x04) { } } public class NASPort : IntAttribute { public NASPort() : base(0x05) { } } public class ServiceType : IntAttribute { public ServiceType() : base(0x06) { } } public class FramedProtocol : IntAttribute { public FramedProtocol() : base(0x07) { } } public class FramedIPAddress : IPv4Attribute { public FramedIPAddress() : base(0x08) { } } public class FramedIPNetmask : IPv4Attribute { public FramedIPNetmask() : base(0x09) { } } public class FramedRouting : IntAttribute { public FramedRouting() : base(0x0a) { } } public class FilterID : TextAttribute { public FilterID() : base(0x0b) { } } public class FramedMTU : IntAttribute { public FramedMTU() : base(0x0c) { } } public class FramedCompression : IntAttribute { public FramedCompression() : base(0x0d) { } } public class LoginIPHost : IPv4Attribute { public LoginIPHost() : base(0x0e) { } } public class LoginService : IntAttribute { public LoginService() : base(0x0f) { } } public class LoginTCPPort : IntAttribute { public LoginTCPPort() : base(0x10) { } } public class ReplyMessage : TextAttribute { public ReplyMessage() : base(0x12) { } } public class CallbackNumber : RadiusAttribute { public CallbackNumber() : base(0x13) { } } public class CallbackID : RadiusAttribute { public CallbackID() : base(0x14) { } } public class FramedRoute : TextAttribute { public FramedRoute() : base(0x16) { } } public class FramedIPXNetwork : IntAttribute { public FramedIPXNetwork() : base(0x17) { } } public class State : RadiusAttribute { public State() : base(0x18) { } } public class Class : RadiusAttribute { public Class() : base(0x19) { } } public class VendorSpecific : RadiusAttribute { public VendorSpecific() : base(0x1A) { } } public class SessionTimeout : IntAttribute { public SessionTimeout() : base(0x1B) { } } public class IdleTimeout : IntAttribute { public IdleTimeout() : base(0x1C) { } } public class TerminationAction : IntAttribute { public TerminationAction() : base(0x1D) { } } public class CalledStationID : RadiusAttribute { public CalledStationID() : base(0x1E) { } } public class CallingStationID : RadiusAttribute { public CallingStationID() : base(0x1F) { } } public class NASIdentifier : RadiusAttribute { public NASIdentifier() : base(0x20) { } } public class ProxyState : RadiusAttribute { public ProxyState() : base(0x21) { } } public class LoginLATService : RadiusAttribute { public LoginLATService() : base(0x22) { } } public class LoginLATNode : RadiusAttribute { public LoginLATNode() : base(0x23) { } } public class LoginLATGroup : RadiusAttribute { public LoginLATGroup() : base(0x24) { } } public class FramedAppleTalkLink : IntAttribute { public FramedAppleTalkLink() : base(0x25) { } } public class FramedAppleTalkNetwork : IntAttribute { public FramedAppleTalkNetwork() : base(0x26) { } } public class FramedAppleTalkZone : RadiusAttribute { public FramedAppleTalkZone() : base(0x27) { } } public class ChapChallenge : RadiusAttribute { public ChapChallenge() : base(0x3c) { } } public class NASPortType : RadiusAttribute { public NASPortType() : base(0x3d) { } } public class PortLimit : RadiusAttribute { public PortLimit() : base(0x3e) { } } public class LoginLATPort : RadiusAttribute { public LoginLATPort() : base(0x3f) { } } } }