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https://github.com/jellyfin/jellyfin.git
synced 2026-07-08 23:33:03 +01:00
update sharpcifs
This commit is contained in:
Luke Pulverenti
@@ -21,200 +21,186 @@ using SharpCifs.Util.Sharpen;
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namespace SharpCifs.Smb
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{
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/// <summary>For initiating NTLM authentication (including NTLMv2).</summary>
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/// <remarks>For initiating NTLM authentication (including NTLMv2). If you want to add NTLMv2 authentication support to something this is what you want to use. See the code for details. Note that JCIFS does not implement the acceptor side of NTLM authentication.
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/// </remarks>
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public class NtlmContext
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{
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internal NtlmPasswordAuthentication Auth;
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/// <summary>For initiating NTLM authentication (including NTLMv2).</summary>
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/// <remarks>For initiating NTLM authentication (including NTLMv2). If you want to add NTLMv2 authentication support to something this is what you want to use. See the code for details. Note that JCIFS does not implement the acceptor side of NTLM authentication.
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/// </remarks>
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public class NtlmContext
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{
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internal NtlmPasswordAuthentication Auth;
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internal int NtlmsspFlags;
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internal int NtlmsspFlags;
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internal string Workstation;
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internal string Workstation;
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internal bool isEstablished;
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internal bool isEstablished;
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internal byte[] ServerChallenge;
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internal byte[] ServerChallenge;
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internal byte[] SigningKey;
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internal byte[] SigningKey;
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internal string NetbiosName = null;
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internal string NetbiosName = null;
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internal int State = 1;
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internal int State = 1;
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internal LogStream Log;
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internal LogStream Log;
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public NtlmContext(NtlmPasswordAuthentication auth, bool doSigning)
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{
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this.Auth = auth;
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NtlmsspFlags = NtlmsspFlags
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| NtlmFlags.NtlmsspRequestTarget
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| NtlmFlags.NtlmsspNegotiateNtlm2
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| NtlmFlags.NtlmsspNegotiate128;
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if (doSigning)
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{
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NtlmsspFlags |= NtlmFlags.NtlmsspNegotiateSign
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| NtlmFlags.NtlmsspNegotiateAlwaysSign
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| NtlmFlags.NtlmsspNegotiateKeyExch;
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}
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Workstation = Type1Message.GetDefaultWorkstation();
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Log = LogStream.GetInstance();
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}
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public NtlmContext(NtlmPasswordAuthentication auth, bool doSigning)
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{
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this.Auth = auth;
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NtlmsspFlags = NtlmsspFlags | NtlmFlags.NtlmsspRequestTarget | NtlmFlags.NtlmsspNegotiateNtlm2
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| NtlmFlags.NtlmsspNegotiate128;
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if (doSigning)
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{
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NtlmsspFlags |= NtlmFlags.NtlmsspNegotiateSign | NtlmFlags.NtlmsspNegotiateAlwaysSign
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| NtlmFlags.NtlmsspNegotiateKeyExch;
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}
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Workstation = Type1Message.GetDefaultWorkstation();
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Log = LogStream.GetInstance();
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}
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public override string ToString()
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{
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string ret = "NtlmContext[auth=" + Auth
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+ ",ntlmsspFlags=0x" + Hexdump.ToHexString(NtlmsspFlags, 8)
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+ ",workstation=" + Workstation
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+ ",isEstablished=" + isEstablished
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+ ",state=" + State
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+ ",serverChallenge=";
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if (ServerChallenge == null)
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{
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ret += "null";
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}
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else
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{
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ret += Hexdump.ToHexString(ServerChallenge, 0, ServerChallenge.Length * 2);
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}
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ret += ",signingKey=";
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if (SigningKey == null)
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{
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ret += "null";
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}
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else
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{
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ret += Hexdump.ToHexString(SigningKey, 0, SigningKey.Length * 2);
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}
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ret += "]";
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return ret;
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}
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public override string ToString()
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{
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string ret = "NtlmContext[auth=" + Auth + ",ntlmsspFlags=0x" + Hexdump.ToHexString
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(NtlmsspFlags, 8) + ",workstation=" + Workstation + ",isEstablished=" + isEstablished
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+ ",state=" + State + ",serverChallenge=";
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if (ServerChallenge == null)
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{
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ret += "null";
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}
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else
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{
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ret += Hexdump.ToHexString(ServerChallenge, 0, ServerChallenge.Length * 2);
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}
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ret += ",signingKey=";
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if (SigningKey == null)
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{
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ret += "null";
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}
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else
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{
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ret += Hexdump.ToHexString(SigningKey, 0, SigningKey.Length * 2);
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}
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ret += "]";
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return ret;
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}
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public virtual bool IsEstablished()
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{
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return isEstablished;
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}
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public virtual bool IsEstablished()
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{
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return isEstablished;
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}
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public virtual byte[] GetServerChallenge()
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{
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return ServerChallenge;
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}
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public virtual byte[] GetServerChallenge()
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{
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return ServerChallenge;
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}
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public virtual byte[] GetSigningKey()
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{
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return SigningKey;
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}
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public virtual byte[] GetSigningKey()
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{
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return SigningKey;
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}
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public virtual string GetNetbiosName()
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{
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return NetbiosName;
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}
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public virtual string GetNetbiosName()
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{
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return NetbiosName;
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}
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private string GetNtlmsspListItem(byte[] type2Token, int id0)
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{
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int ri = 58;
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for (;;)
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{
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int id = Encdec.Dec_uint16le(type2Token, ri);
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int len = Encdec.Dec_uint16le(type2Token, ri + 2);
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ri += 4;
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if (id == 0 || (ri + len) > type2Token.Length)
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{
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break;
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}
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if (id == id0)
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{
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try
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{
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return Runtime.GetStringForBytes(type2Token,
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ri,
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len,
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SmbConstants.UniEncoding);
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}
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catch (UnsupportedEncodingException)
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{
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break;
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}
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}
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ri += len;
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}
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return null;
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}
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private string GetNtlmsspListItem(byte[] type2Token, int id0)
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{
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int ri = 58;
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for (; ; )
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{
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int id = Encdec.Dec_uint16le(type2Token, ri);
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int len = Encdec.Dec_uint16le(type2Token, ri + 2);
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ri += 4;
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if (id == 0 || (ri + len) > type2Token.Length)
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{
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break;
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}
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if (id == id0)
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{
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try
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{
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return Runtime.GetStringForBytes(type2Token, ri, len, SmbConstants.UniEncoding
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);
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}
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catch (UnsupportedEncodingException)
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{
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break;
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}
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}
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ri += len;
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}
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return null;
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}
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/// <exception cref="SharpCifs.Smb.SmbException"></exception>
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public virtual byte[] InitSecContext(byte[] token, int offset, int len)
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{
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switch (State)
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{
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case 1:
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{
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Type1Message msg1 = new Type1Message(NtlmsspFlags,
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Auth.GetDomain(),
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Workstation);
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token = msg1.ToByteArray();
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if (Log.Level >= 4)
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{
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Log.WriteLine(msg1);
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if (Log.Level >= 6)
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{
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Hexdump.ToHexdump(Log, token, 0, token.Length);
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}
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}
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State++;
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break;
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}
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/// <exception cref="SharpCifs.Smb.SmbException"></exception>
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public virtual byte[] InitSecContext(byte[] token, int offset, int len)
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{
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switch (State)
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{
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case 1:
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{
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Type1Message msg1 = new Type1Message(NtlmsspFlags, Auth.GetDomain(), Workstation);
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token = msg1.ToByteArray();
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if (Log.Level >= 4)
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{
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Log.WriteLine(msg1);
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if (Log.Level >= 6)
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{
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Hexdump.ToHexdump(Log, token, 0, token.Length);
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}
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}
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State++;
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break;
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}
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case 2:
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{
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try
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{
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Type2Message msg2 = new Type2Message(token);
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if (Log.Level >= 4)
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{
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Log.WriteLine(msg2);
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if (Log.Level >= 6)
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{
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Hexdump.ToHexdump(Log, token, 0, token.Length);
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}
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}
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ServerChallenge = msg2.GetChallenge();
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NtlmsspFlags &= msg2.GetFlags();
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//netbiosName = getNtlmsspListItem(token, 0x0001);
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Type3Message msg3 = new Type3Message(msg2,
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Auth.GetPassword(),
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Auth.GetDomain(),
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Auth.GetUsername(),
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Workstation,
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NtlmsspFlags);
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token = msg3.ToByteArray();
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if (Log.Level >= 4)
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{
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Log.WriteLine(msg3);
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if (Log.Level >= 6)
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{
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Hexdump.ToHexdump(Log, token, 0, token.Length);
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}
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}
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if ((NtlmsspFlags & NtlmFlags.NtlmsspNegotiateSign) != 0)
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{
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SigningKey = msg3.GetMasterKey();
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}
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isEstablished = true;
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State++;
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break;
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}
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catch (Exception e)
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{
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throw new SmbException(e.Message, e);
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}
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}
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case 2:
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{
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try
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{
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Type2Message msg2 = new Type2Message(token);
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if (Log.Level >= 4)
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{
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Log.WriteLine(msg2);
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if (Log.Level >= 6)
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{
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Hexdump.ToHexdump(Log, token, 0, token.Length);
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}
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}
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ServerChallenge = msg2.GetChallenge();
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NtlmsspFlags &= msg2.GetFlags();
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// netbiosName = getNtlmsspListItem(token, 0x0001);
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Type3Message msg3 = new Type3Message(msg2, Auth.GetPassword(), Auth.GetDomain(),
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Auth.GetUsername(), Workstation, NtlmsspFlags);
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token = msg3.ToByteArray();
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if (Log.Level >= 4)
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{
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Log.WriteLine(msg3);
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if (Log.Level >= 6)
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{
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Hexdump.ToHexdump(Log, token, 0, token.Length);
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}
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}
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if ((NtlmsspFlags & NtlmFlags.NtlmsspNegotiateSign) != 0)
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{
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SigningKey = msg3.GetMasterKey();
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}
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isEstablished = true;
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State++;
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break;
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}
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catch (Exception e)
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{
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throw new SmbException(e.Message, e);
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}
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}
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default:
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{
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throw new SmbException("Invalid state");
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}
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}
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return token;
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}
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}
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default:
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{
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throw new SmbException("Invalid state");
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}
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}
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return token;
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}
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}
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}
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