/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); Buffer buf = new Buffer(); Packet packet = new Packet(buf); // byte SSH_MSG_CHANNEL_REQUEST(98) // uint32 recipient channel // string request type // "x11-req" // boolean want reply // 0 // boolean single connection // string x11 authentication protocol // "MIT-MAGIC-COOKIE-1". // string x11 authentication cookie // uint32 x11 screen number packet.Reset(); buf.PutByte(unchecked((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("x11-req")); buf.PutByte(unchecked((byte)(WaitForReply() ? 1 : 0))); buf.PutByte(unchecked((byte)0)); buf.PutString(Util.Str2byte("MIT-MAGIC-COOKIE-1")); buf.PutString(ChannelX11.GetFakedCookie(session)); buf.PutInt(0); Write(packet); session.x11_forwarding = true; }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); Buffer buf = new Buffer(); Packet packet = new Packet(buf); // byte SSH_MSG_CHANNEL_REQUEST(98) // uint32 recipient channel // string request type // "x11-req" // boolean want reply // 0 // boolean single connection // string x11 authentication protocol // "MIT-MAGIC-COOKIE-1". // string x11 authentication cookie // uint32 x11 screen number packet.Reset(); buf.PutByte(unchecked ((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("x11-req")); buf.PutByte(unchecked ((byte)(WaitForReply() ? 1 : 0))); buf.PutByte(unchecked ((byte)0)); buf.PutString(Util.Str2byte("MIT-MAGIC-COOKIE-1")); buf.PutString(ChannelX11.GetFakedCookie(session)); buf.PutInt(0); Write(packet); session.x11_forwarding = true; }
internal static void DelPort(Session session, string address_to_bind, int rport) { lock (pool) { object[] foo = null; for (int i = 0; i < pool.Count; i++) { object[] bar = (object[])(pool[i]); if (bar[0] != session) { continue; } if (((int)bar[1]) != rport) { continue; } foo = bar; break; } if (foo == null) { return; } pool.RemoveElement(foo); if (address_to_bind == null) { address_to_bind = (string)foo[4]; } if (address_to_bind == null) { address_to_bind = "0.0.0.0"; } } Buffer buf = new Buffer(100); // ?? Packet packet = new Packet(buf); try { // byte SSH_MSG_GLOBAL_REQUEST 80 // string "cancel-tcpip-forward" // boolean want_reply // string address_to_bind (e.g. "127.0.0.1") // uint32 port number to bind packet.Reset(); buf.PutByte(unchecked ((byte)80)); buf.PutString(Util.Str2byte("cancel-tcpip-forward")); buf.PutByte(unchecked ((byte)0)); buf.PutString(Util.Str2byte(address_to_bind)); buf.PutInt(rport); session.Write(packet); } catch (Exception) { } }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); Buffer buf = new Buffer(); Packet packet = new Packet(buf); packet.Reset(); buf.PutByte(unchecked((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("subsystem")); buf.PutByte(unchecked((byte)(WaitForReply() ? 1 : 0))); buf.PutString(Util.Str2byte(subsystem)); Write(packet); }
internal virtual byte[] GetPublicKeyBlob_rsa() { if (e_array == null) { return(null); } Buffer buf = new Buffer("ssh-rsa".Length + 4 + e_array.Length + 4 + n_array.Length + 4); buf.PutString(Util.Str2byte("ssh-rsa")); buf.PutString(e_array); buf.PutString(n_array); return(buf.buffer); }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); Buffer buf = new Buffer(); Packet packet = new Packet(buf); packet.Reset(); buf.PutByte(unchecked ((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("subsystem")); buf.PutByte(unchecked ((byte)(WaitForReply() ? 1 : 0))); buf.PutString(Util.Str2byte(subsystem)); Write(packet); }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); Buffer buf = new Buffer(); Packet packet = new Packet(buf); //byte SSH_MSG_CHANNEL_REQUEST //uint32 recipient_channel //string "window-change" //boolean FALSE //uint32 terminal width, columns //uint32 terminal height, rows //uint32 terminal width, pixels //uint32 terminal height, pixels packet.Reset(); buf.PutByte(unchecked ((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("window-change")); buf.PutByte(unchecked ((byte)(WaitForReply() ? 1 : 0))); buf.PutInt(width_columns); buf.PutInt(height_rows); buf.PutInt(width_pixels); buf.PutInt(height_pixels); Write(packet); }
internal virtual byte[] GetPublicKeyBlob_dss() { if (P_array == null) { return(null); } Buffer buf = new Buffer("ssh-dss".Length + 4 + P_array.Length + 4 + Q_array.Length + 4 + G_array.Length + 4 + pub_array.Length + 4); buf.PutString(Util.Str2byte("ssh-dss")); buf.PutString(P_array); buf.PutString(Q_array); buf.PutString(G_array); buf.PutString(pub_array); return(buf.buffer); }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); Buffer buf = new Buffer(); Packet packet = new Packet(buf); packet.Reset(); buf.PutByte(unchecked((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("pty-req")); buf.PutByte(unchecked((byte)(WaitForReply() ? 1 : 0))); buf.PutString(Util.Str2byte(ttype)); buf.PutInt(tcol); buf.PutInt(trow); buf.PutInt(twp); buf.PutInt(thp); buf.PutString(terminal_mode); Write(packet); }
protected internal virtual void SendOpenFailure(int reasoncode) { try { Buffer buf = new Buffer(100); Packet packet = new Packet(buf); packet.Reset(); buf.PutByte(unchecked ((byte)SSH_MSG_CHANNEL_OPEN_FAILURE)); buf.PutInt(GetRecipient()); buf.PutInt(reasoncode); buf.PutString(Util.Str2byte("open failed")); buf.PutString(Util.empty); GetSession().Write(packet); } catch (Exception) { } }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); Buffer buf = new Buffer(); Packet packet = new Packet(buf); // send // byte SSH_MSG_CHANNEL_REQUEST(98) // uint32 recipient channel // string request type // "exec" // boolean want reply // 0 // string command packet.Reset(); buf.PutByte(unchecked((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("exec")); buf.PutByte(unchecked((byte)(WaitForReply() ? 1 : 0))); buf.PutString(command); Write(packet); }
public override byte[] GetPublicKeyBlob() { byte[] foo = base.GetPublicKeyBlob(); if (foo != null) { return(foo); } if (pub_array == null) { return(null); } Buffer buf = new Buffer(sshrsa.Length + 4 + pub_array.Length + 4 + n_array.Length + 4); buf.PutString(sshrsa); buf.PutString(pub_array); buf.PutString(n_array); return(buf.buffer); }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); Buffer buf = new Buffer(); Packet packet = new Packet(buf); packet.Reset(); buf.PutByte(unchecked ((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("pty-req")); buf.PutByte(unchecked ((byte)(WaitForReply() ? 1 : 0))); buf.PutString(Util.Str2byte(ttype)); buf.PutInt(tcol); buf.PutInt(trow); buf.PutInt(twp); buf.PutInt(thp); buf.PutString(terminal_mode); Write(packet); }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); Buffer buf = new Buffer(); Packet packet = new Packet(buf); // send // byte SSH_MSG_CHANNEL_REQUEST(98) // uint32 recipient channel // string request type // "exec" // boolean want reply // 0 // string command packet.Reset(); buf.PutByte(unchecked ((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("exec")); buf.PutByte(unchecked ((byte)(WaitForReply() ? 1 : 0))); buf.PutString(command); Write(packet); }
internal virtual byte[] GetSignature_rsa(byte[] data) { try { Type c = Sharpen.Runtime.GetType((string)JSch.GetConfig("signature.rsa")); NSch.SignatureRSA rsa = (NSch.SignatureRSA)(System.Activator.CreateInstance(c)); rsa.Init(); rsa.SetPrvKey(d_array, n_array, e_array); rsa.Update(data); byte[] sig = rsa.Sign(); Buffer buf = new Buffer("ssh-rsa".Length + 4 + sig.Length + 4); buf.PutString(Util.Str2byte("ssh-rsa")); buf.PutString(sig); return(buf.buffer); } catch (Exception) { } return(null); }
internal virtual byte[] GetSignature_dss(byte[] data) { try { Type c = Sharpen.Runtime.GetType((string)JSch.GetConfig("signature.dss")); NSch.SignatureDSA dsa = (NSch.SignatureDSA)(System.Activator.CreateInstance(c)); dsa.Init(); dsa.SetPrvKey(prv_array, P_array, Q_array, G_array); dsa.Update(data); byte[] sig = dsa.Sign(); Buffer buf = new Buffer("ssh-dss".Length + 4 + sig.Length + 4); buf.PutString(Util.Str2byte("ssh-dss")); buf.PutString(sig); return(buf.buffer); } catch (Exception) { } //System.err.println("e "+e); return(null); }
protected internal override Packet GenChannelOpenPacket() { Buffer buf = new Buffer(150); Packet packet = new Packet(buf); // byte SSH_MSG_CHANNEL_OPEN(90) // string channel type // // uint32 sender channel // 0 // uint32 initial window size // 0x100000(65536) // uint32 maxmum packet size // 0x4000(16384) packet.Reset(); buf.PutByte(unchecked ((byte)90)); buf.PutString(this.type); buf.PutInt(id); buf.PutInt(lwsize); buf.PutInt(lmpsize); buf.PutString(Util.Str2byte(host)); buf.PutInt(port); buf.PutString(Util.Str2byte(originator_IP_address)); buf.PutInt(originator_port); return(packet); }
internal virtual void Dump(Buffer buf) { buf.PutInt(flags); if ((flags & SSH_FILEXFER_ATTR_SIZE) != 0) { buf.PutLong(size); } if ((flags & SSH_FILEXFER_ATTR_UIDGID) != 0) { buf.PutInt(uid); buf.PutInt(gid); } if ((flags & SSH_FILEXFER_ATTR_PERMISSIONS) != 0) { buf.PutInt(permissions); } if ((flags & SSH_FILEXFER_ATTR_ACMODTIME) != 0) { buf.PutInt(atime); } if ((flags & SSH_FILEXFER_ATTR_ACMODTIME) != 0) { buf.PutInt(mtime); } if ((flags & SSH_FILEXFER_ATTR_EXTENDED) != 0) { int count = extended.Length / 2; if (count > 0) { for (int i = 0; i < count; i++) { buf.PutString(Util.Str2byte(extended[i * 2])); buf.PutString(Util.Str2byte(extended[i * 2 + 1])); } } } }
private void Send(byte[] message) { packet.Reset(); wbuf.PutByte(unchecked ((byte)Session.SSH_MSG_CHANNEL_DATA)); wbuf.PutInt(recipient); wbuf.PutInt(4 + message.Length); wbuf.PutString(message); try { GetSession().Write(packet, this, 4 + message.Length); } catch (Exception) { } }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); SetReply(false); Buffer buf = new Buffer(); Packet packet = new Packet(buf); // byte SSH_MSG_CHANNEL_REQUEST(98) // uint32 recipient channel // string request type // "*****@*****.**" // boolean want reply // 0 packet.Reset(); buf.PutByte(unchecked((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("*****@*****.**")); buf.PutByte(unchecked((byte)(WaitForReply() ? 1 : 0))); Write(packet); session.agent_forwarding = true; }
protected internal virtual Packet GenChannelOpenPacket() { Buffer buf = new Buffer(100); Packet packet = new Packet(buf); // byte SSH_MSG_CHANNEL_OPEN(90) // string channel type // // uint32 sender channel // 0 // uint32 initial window size // 0x100000(65536) // uint32 maxmum packet size // 0x4000(16384) packet.Reset(); buf.PutByte(unchecked ((byte)90)); buf.PutString(this.type); buf.PutInt(this.id); buf.PutInt(this.lwsize); buf.PutInt(this.lmpsize); return(packet); }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); SetReply(false); Buffer buf = new Buffer(); Packet packet = new Packet(buf); // byte SSH_MSG_CHANNEL_REQUEST(98) // uint32 recipient channel // string request type // "*****@*****.**" // boolean want reply // 0 packet.Reset(); buf.PutByte(unchecked ((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("*****@*****.**")); buf.PutByte(unchecked ((byte)(WaitForReply() ? 1 : 0))); Write(packet); session.agent_forwarding = true; }
/// <exception cref="System.Exception"></exception> internal override void DoRequest(Session session, Channel channel) { base.DoRequest(session, channel); Buffer buf = new Buffer(); Packet packet = new Packet(buf); //byte SSH_MSG_CHANNEL_REQUEST //uint32 recipient_channel //string "window-change" //boolean FALSE //uint32 terminal width, columns //uint32 terminal height, rows //uint32 terminal width, pixels //uint32 terminal height, pixels packet.Reset(); buf.PutByte(unchecked((byte)Session.SSH_MSG_CHANNEL_REQUEST)); buf.PutInt(channel.GetRecipient()); buf.PutString(Util.Str2byte("window-change")); buf.PutByte(unchecked((byte)(WaitForReply() ? 1 : 0))); buf.PutInt(width_columns); buf.PutInt(height_rows); buf.PutInt(width_pixels); buf.PutInt(height_pixels); Write(packet); }
/// <exception cref="System.Exception"></exception> public override bool Next(Buffer _buf) { int i; int j; switch (state) { case SSH_MSG_KEX_DH_GEX_GROUP: { // byte SSH_MSG_KEX_DH_GEX_GROUP(31) // mpint p, safe prime // mpint g, generator for subgroup in GF (p) _buf.GetInt(); _buf.GetByte(); j = _buf.GetByte(); if (j != SSH_MSG_KEX_DH_GEX_GROUP) { System.Console.Error.WriteLine("type: must be SSH_MSG_KEX_DH_GEX_GROUP " + j); return(false); } p = _buf.GetMPInt(); g = _buf.GetMPInt(); dh.SetP(p); dh.SetG(g); // The client responds with: // byte SSH_MSG_KEX_DH_GEX_INIT(32) // mpint e <- g^x mod p // x is a random number (1 < x < (p-1)/2) e = dh.GetE(); packet.Reset(); buf.PutByte(unchecked ((byte)SSH_MSG_KEX_DH_GEX_INIT)); buf.PutMPInt(e); session.Write(packet); if (JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "SSH_MSG_KEX_DH_GEX_INIT sent"); JSch.GetLogger().Log(Logger.INFO, "expecting SSH_MSG_KEX_DH_GEX_REPLY"); } state = SSH_MSG_KEX_DH_GEX_REPLY; return(true); } case SSH_MSG_KEX_DH_GEX_REPLY: { //break; // The server responds with: // byte SSH_MSG_KEX_DH_GEX_REPLY(33) // string server public host key and certificates (K_S) // mpint f // string signature of H j = _buf.GetInt(); j = _buf.GetByte(); j = _buf.GetByte(); if (j != SSH_MSG_KEX_DH_GEX_REPLY) { System.Console.Error.WriteLine("type: must be SSH_MSG_KEX_DH_GEX_REPLY " + j); return(false); } K_S = _buf.GetString(); // K_S is server_key_blob, which includes .... // string ssh-dss // impint p of dsa // impint q of dsa // impint g of dsa // impint pub_key of dsa //System.err.print("K_S: "); dump(K_S, 0, K_S.length); byte[] f = _buf.GetMPInt(); byte[] sig_of_H = _buf.GetString(); dh.SetF(f); K = dh.GetK(); //The hash H is computed as the HASH hash of the concatenation of the //following: // string V_C, the client's version string (CR and NL excluded) // string V_S, the server's version string (CR and NL excluded) // string I_C, the payload of the client's SSH_MSG_KEXINIT // string I_S, the payload of the server's SSH_MSG_KEXINIT // string K_S, the host key // uint32 min, minimal size in bits of an acceptable group // uint32 n, preferred size in bits of the group the server should send // uint32 max, maximal size in bits of an acceptable group // mpint p, safe prime // mpint g, generator for subgroup // mpint e, exchange value sent by the client // mpint f, exchange value sent by the server // mpint K, the shared secret // This value is called the exchange hash, and it is used to authenti- // cate the key exchange. buf.Reset(); buf.PutString(V_C); buf.PutString(V_S); buf.PutString(I_C); buf.PutString(I_S); buf.PutString(K_S); buf.PutInt(min); buf.PutInt(preferred); buf.PutInt(max); buf.PutMPInt(p); buf.PutMPInt(g); buf.PutMPInt(e); buf.PutMPInt(f); buf.PutMPInt(K); byte[] foo = new byte[buf.GetLength()]; buf.GetByte(foo); sha.Update(foo, 0, foo.Length); H = sha.Digest(); // System.err.print("H -> "); dump(H, 0, H.length); i = 0; j = 0; j = ((K_S[i++] << 24) & unchecked ((int)(0xff000000))) | ((K_S[i++] << 16) & unchecked ( (int)(0x00ff0000))) | ((K_S[i++] << 8) & unchecked ((int)(0x0000ff00))) | ((K_S[i ++]) & unchecked ((int)(0x000000ff))); string alg = Util.Byte2str(K_S, i, j); i += j; bool result = false; if (alg.Equals("ssh-rsa")) { byte[] tmp; byte[] ee; byte[] n; type = RSA; j = ((K_S[i++] << 24) & unchecked ((int)(0xff000000))) | ((K_S[i++] << 16) & unchecked ( (int)(0x00ff0000))) | ((K_S[i++] << 8) & unchecked ((int)(0x0000ff00))) | ((K_S[i ++]) & unchecked ((int)(0x000000ff))); tmp = new byte[j]; System.Array.Copy(K_S, i, tmp, 0, j); i += j; ee = tmp; j = ((K_S[i++] << 24) & unchecked ((int)(0xff000000))) | ((K_S[i++] << 16) & unchecked ( (int)(0x00ff0000))) | ((K_S[i++] << 8) & unchecked ((int)(0x0000ff00))) | ((K_S[i ++]) & unchecked ((int)(0x000000ff))); tmp = new byte[j]; System.Array.Copy(K_S, i, tmp, 0, j); i += j; n = tmp; // SignatureRSA sig=new SignatureRSA(); // sig.init(); NSch.SignatureRSA sig = null; try { Type c = Sharpen.Runtime.GetType(session.GetConfig("signature.rsa")); sig = (NSch.SignatureRSA)(System.Activator.CreateInstance(c)); sig.Init(); } catch (Exception ex) { System.Console.Error.WriteLine(ex); } sig.SetPubKey(ee, n); sig.Update(H); result = sig.Verify(sig_of_H); if (JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "ssh_rsa_verify: signature " + result); } } else { if (alg.Equals("ssh-dss")) { byte[] q = null; byte[] tmp; type = DSS; j = ((K_S[i++] << 24) & unchecked ((int)(0xff000000))) | ((K_S[i++] << 16) & unchecked ( (int)(0x00ff0000))) | ((K_S[i++] << 8) & unchecked ((int)(0x0000ff00))) | ((K_S[i ++]) & unchecked ((int)(0x000000ff))); tmp = new byte[j]; System.Array.Copy(K_S, i, tmp, 0, j); i += j; p = tmp; j = ((K_S[i++] << 24) & unchecked ((int)(0xff000000))) | ((K_S[i++] << 16) & unchecked ( (int)(0x00ff0000))) | ((K_S[i++] << 8) & unchecked ((int)(0x0000ff00))) | ((K_S[i ++]) & unchecked ((int)(0x000000ff))); tmp = new byte[j]; System.Array.Copy(K_S, i, tmp, 0, j); i += j; q = tmp; j = ((K_S[i++] << 24) & unchecked ((int)(0xff000000))) | ((K_S[i++] << 16) & unchecked ( (int)(0x00ff0000))) | ((K_S[i++] << 8) & unchecked ((int)(0x0000ff00))) | ((K_S[i ++]) & unchecked ((int)(0x000000ff))); tmp = new byte[j]; System.Array.Copy(K_S, i, tmp, 0, j); i += j; g = tmp; j = ((K_S[i++] << 24) & unchecked ((int)(0xff000000))) | ((K_S[i++] << 16) & unchecked ( (int)(0x00ff0000))) | ((K_S[i++] << 8) & unchecked ((int)(0x0000ff00))) | ((K_S[i ++]) & unchecked ((int)(0x000000ff))); tmp = new byte[j]; System.Array.Copy(K_S, i, tmp, 0, j); i += j; f = tmp; // SignatureDSA sig=new SignatureDSA(); // sig.init(); NSch.SignatureDSA sig = null; try { Type c = Sharpen.Runtime.GetType(session.GetConfig("signature.dss")); sig = (NSch.SignatureDSA)(System.Activator.CreateInstance(c)); sig.Init(); } catch (Exception ex) { System.Console.Error.WriteLine(ex); } sig.SetPubKey(f, p, q, g); sig.Update(H); result = sig.Verify(sig_of_H); if (JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "ssh_dss_verify: signature " + result); } } else { System.Console.Error.WriteLine("unknown alg"); } } state = STATE_END; return(result); } } return(false); }
/// <exception cref="System.IO.IOException"></exception> internal override void Write(byte[] foo, int s, int l) { if (packet == null) { wbuf = new Buffer(rmpsize); packet = new Packet(wbuf); } rbuf.Shift(); if (rbuf.buffer.Length < rbuf.index + l) { byte[] newbuf = new byte[rbuf.s + l]; System.Array.Copy(rbuf.buffer, 0, newbuf, 0, rbuf.buffer.Length); rbuf.buffer = newbuf; } rbuf.PutByte(foo, s, l); int mlen = rbuf.GetInt(); if (mlen > rbuf.GetLength()) { rbuf.s -= 4; return; } int typ = rbuf.GetByte(); Session _session = null; try { _session = GetSession(); } catch (JSchException e) { throw new IOException(e.ToString()); } IdentityRepository irepo = _session.jsch.GetIdentityRepository(); UserInfo userinfo = _session.GetUserInfo(); mbuf.Reset(); if (typ == SSH2_AGENTC_REQUEST_IDENTITIES) { mbuf.PutByte(SSH2_AGENT_IDENTITIES_ANSWER); ArrayList identities = irepo.GetIdentities(); lock (identities) { int count = 0; for (int i = 0; i < identities.Count; i++) { Identity identity = (Identity)(identities[i]); if (identity.GetPublicKeyBlob() != null) { count++; } } mbuf.PutInt(count); for (int i_1 = 0; i_1 < identities.Count; i_1++) { Identity identity = (Identity)(identities[i_1]); byte[] pubkeyblob = identity.GetPublicKeyBlob(); if (pubkeyblob == null) { continue; } mbuf.PutString(pubkeyblob); mbuf.PutString(Util.empty); } } } else { if (typ == SSH_AGENTC_REQUEST_RSA_IDENTITIES) { mbuf.PutByte(SSH_AGENT_RSA_IDENTITIES_ANSWER); mbuf.PutInt(0); } else { if (typ == SSH2_AGENTC_SIGN_REQUEST) { byte[] blob = rbuf.GetString(); byte[] data = rbuf.GetString(); int flags = rbuf.GetInt(); // if((flags & 1)!=0){ //SSH_AGENT_OLD_SIGNATURE // old OpenSSH 2.0, 2.1 // datafellows = SSH_BUG_SIGBLOB; // } ArrayList identities = irepo.GetIdentities(); Identity identity = null; lock (identities) { for (int i = 0; i < identities.Count; i++) { Identity _identity = (Identity)(identities[i]); if (_identity.GetPublicKeyBlob() == null) { continue; } if (!Util.Array_equals(blob, _identity.GetPublicKeyBlob())) { continue; } if (_identity.IsEncrypted()) { if (userinfo == null) { continue; } while (_identity.IsEncrypted()) { if (!userinfo.PromptPassphrase("Passphrase for " + _identity.GetName())) { break; } string _passphrase = userinfo.GetPassphrase(); if (_passphrase == null) { break; } byte[] passphrase = Util.Str2byte(_passphrase); try { if (_identity.SetPassphrase(passphrase)) { break; } } catch (JSchException) { break; } } } if (!_identity.IsEncrypted()) { identity = _identity; break; } } } byte[] signature = null; if (identity != null) { signature = identity.GetSignature(data); } if (signature == null) { mbuf.PutByte(SSH2_AGENT_FAILURE); } else { mbuf.PutByte(SSH2_AGENT_SIGN_RESPONSE); mbuf.PutString(signature); } } else { if (typ == SSH2_AGENTC_REMOVE_IDENTITY) { byte[] blob = rbuf.GetString(); irepo.Remove(blob); mbuf.PutByte(SSH_AGENT_SUCCESS); } else { if (typ == SSH_AGENTC_REMOVE_ALL_RSA_IDENTITIES) { mbuf.PutByte(SSH_AGENT_SUCCESS); } else { if (typ == SSH2_AGENTC_REMOVE_ALL_IDENTITIES) { irepo.RemoveAll(); mbuf.PutByte(SSH_AGENT_SUCCESS); } else { if (typ == SSH2_AGENTC_ADD_IDENTITY) { int fooo = rbuf.GetLength(); byte[] tmp = new byte[fooo]; rbuf.GetByte(tmp); bool result = irepo.Add(tmp); mbuf.PutByte(result ? SSH_AGENT_SUCCESS : SSH_AGENT_FAILURE); } else { rbuf.Skip(rbuf.GetLength() - 1); mbuf.PutByte(SSH_AGENT_FAILURE); } } } } } } } byte[] response = new byte[mbuf.GetLength()]; mbuf.GetByte(response); Send(response); }
internal virtual byte[] GetSignature_dss(byte[] data) { try { Type c = Sharpen.Runtime.GetType((string)JSch.GetConfig("signature.dss")); NSch.SignatureDSA dsa = (NSch.SignatureDSA)(System.Activator.CreateInstance(c)); dsa.Init(); dsa.SetPrvKey(prv_array, P_array, Q_array, G_array); dsa.Update(data); byte[] sig = dsa.Sign(); Buffer buf = new Buffer("ssh-dss".Length + 4 + sig.Length + 4); buf.PutString(Util.Str2byte("ssh-dss")); buf.PutString(sig); return buf.buffer; } catch (Exception) { } //System.err.println("e "+e); return null; }
// OID 1.2.840.113554.1.2.2 in DER /// <exception cref="System.Exception"></exception> public override bool Start(Session session) { base.Start(session); byte[] _username = Util.Str2byte(username); packet.Reset(); // byte SSH_MSG_USERAUTH_REQUEST(50) // string user name(in ISO-10646 UTF-8 encoding) // string service name(in US-ASCII) // string "gssapi"(US-ASCII) // uint32 n, the number of OIDs client supports // string[n] mechanism OIDS buf.PutByte(unchecked ((byte)SSH_MSG_USERAUTH_REQUEST)); buf.PutString(_username); buf.PutString(Util.Str2byte("ssh-connection")); buf.PutString(Util.Str2byte("gssapi-with-mic")); buf.PutInt(supported_oid.Length); for (int i = 0; i < supported_oid.Length; i++) { buf.PutString(supported_oid[i]); } session.Write(packet); string method = null; int command; while (true) { buf = session.Read(buf); command = buf.GetCommand() & unchecked ((int)(0xff)); if (command == SSH_MSG_USERAUTH_FAILURE) { return(false); } if (command == SSH_MSG_USERAUTH_GSSAPI_RESPONSE) { buf.GetInt(); buf.GetByte(); buf.GetByte(); byte[] message = buf.GetString(); for (int i_1 = 0; i_1 < supported_oid.Length; i_1++) { if (Util.Array_equals(message, supported_oid[i_1])) { method = supported_method[i_1]; break; } } if (method == null) { return(false); } break; } // success if (command == SSH_MSG_USERAUTH_BANNER) { buf.GetInt(); buf.GetByte(); buf.GetByte(); byte[] _message = buf.GetString(); byte[] lang = buf.GetString(); string message = Util.Byte2str(_message); if (userinfo != null) { userinfo.ShowMessage(message); } continue; } return(false); } NSch.GSSContext context = null; try { Type c = Sharpen.Runtime.GetType(session.GetConfig(method)); context = (NSch.GSSContext)(System.Activator.CreateInstance(c)); } catch (Exception) { return(false); } try { context.Create(username, session.host); } catch (JSchException) { return(false); } byte[] token = new byte[0]; while (!context.IsEstablished()) { try { token = context.Init(token, 0, token.Length); } catch (JSchException) { // TODO // ERRTOK should be sent? // byte SSH_MSG_USERAUTH_GSSAPI_ERRTOK // string error token return(false); } if (token != null) { packet.Reset(); buf.PutByte(unchecked ((byte)SSH_MSG_USERAUTH_GSSAPI_TOKEN)); buf.PutString(token); session.Write(packet); } if (!context.IsEstablished()) { buf = session.Read(buf); command = buf.GetCommand() & unchecked ((int)(0xff)); if (command == SSH_MSG_USERAUTH_GSSAPI_ERROR) { // uint32 major_status // uint32 minor_status // string message // string language tag buf = session.Read(buf); command = buf.GetCommand() & unchecked ((int)(0xff)); } else { //return false; if (command == SSH_MSG_USERAUTH_GSSAPI_ERRTOK) { // string error token buf = session.Read(buf); command = buf.GetCommand() & unchecked ((int)(0xff)); } } //return false; if (command == SSH_MSG_USERAUTH_FAILURE) { return(false); } buf.GetInt(); buf.GetByte(); buf.GetByte(); token = buf.GetString(); } } Buffer mbuf = new Buffer(); // string session identifier // byte SSH_MSG_USERAUTH_REQUEST // string user name // string service // string "gssapi-with-mic" mbuf.PutString(session.GetSessionId()); mbuf.PutByte(unchecked ((byte)SSH_MSG_USERAUTH_REQUEST)); mbuf.PutString(_username); mbuf.PutString(Util.Str2byte("ssh-connection")); mbuf.PutString(Util.Str2byte("gssapi-with-mic")); byte[] mic = context.GetMIC(mbuf.buffer, 0, mbuf.GetLength()); if (mic == null) { return(false); } packet.Reset(); buf.PutByte(unchecked ((byte)SSH_MSG_USERAUTH_GSSAPI_MIC)); buf.PutString(mic); session.Write(packet); context.Dispose(); buf = session.Read(buf); command = buf.GetCommand() & unchecked ((int)(0xff)); if (command == SSH_MSG_USERAUTH_SUCCESS) { return(true); } else { if (command == SSH_MSG_USERAUTH_FAILURE) { buf.GetInt(); buf.GetByte(); buf.GetByte(); byte[] foo = buf.GetString(); int partial_success = buf.GetByte(); //System.err.println(new String(foo)+ // " partial_success:"+(partial_success!=0)); if (partial_success != 0) { throw new JSchPartialAuthException(Util.Byte2str(foo)); } } } return(false); }
/// <exception cref="System.Exception"></exception> public virtual void SendKeepAliveMsg() { Buffer buf = new Buffer(); Packet packet = new Packet(buf); packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_GLOBAL_REQUEST)); buf.PutString(keepalivemsg); buf.PutByte(unchecked((byte)1)); Write(packet); }
/// <exception cref="NSch.JSchException"></exception> public virtual void Connect(int connectTimeout) { Session _session = GetSession(); if (!_session.IsConnected()) { throw new JSchException("session is down"); } this.connectTimeout = connectTimeout; try { Buffer buf = new Buffer(100); Packet packet = new Packet(buf); // send // byte SSH_MSG_CHANNEL_OPEN(90) // string channel type // // uint32 sender channel // 0 // uint32 initial window size // 0x100000(65536) // uint32 maxmum packet size // 0x4000(16384) packet.Reset(); buf.PutByte(unchecked((byte)90)); buf.PutString(this.type); buf.PutInt(this.id); buf.PutInt(this.lwsize); buf.PutInt(this.lmpsize); _session.Write(packet); int retry = 1000; long start = Runtime.CurrentTimeMillis(); long timeout = connectTimeout; while (this.GetRecipient() == -1 && _session.IsConnected() && retry > 0) { if (timeout > 0L) { if ((Runtime.CurrentTimeMillis() - start) > timeout) { retry = 0; continue; } } try { Sharpen.Thread.Sleep(50); } catch (Exception) { } retry--; } if (!_session.IsConnected()) { throw new JSchException("session is down"); } if (retry == 0) { throw new JSchException("channel is not opened."); } if (this.IsClosed()) { throw new JSchException("channel is not opened."); } connected = true; Start(); } catch (Exception e) { connected = false; Disconnect(); if (e is JSchException) { throw (JSchException)e; } throw new JSchException(e.ToString(), e); } }
protected internal virtual void SendOpenFailure(int reasoncode) { try { Buffer buf = new Buffer(100); Packet packet = new Packet(buf); packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_CHANNEL_OPEN_FAILURE)); buf.PutInt(GetRecipient()); buf.PutInt(reasoncode); buf.PutString(Util.Str2byte("open failed")); buf.PutString(Util.empty); GetSession().Write(packet); } catch (Exception) { } }
protected internal override Packet GenChannelOpenPacket() { Buffer buf = new Buffer(150); Packet packet = new Packet(buf); // byte SSH_MSG_CHANNEL_OPEN(90) // string channel type // // uint32 sender channel // 0 // uint32 initial window size // 0x100000(65536) // uint32 maxmum packet size // 0x4000(16384) packet.Reset(); buf.PutByte(unchecked((byte)90)); buf.PutString(this.type); buf.PutInt(id); buf.PutInt(lwsize); buf.PutInt(lmpsize); buf.PutString(Util.Str2byte(host)); buf.PutInt(port); buf.PutString(Util.Str2byte(originator_IP_address)); buf.PutInt(originator_port); return packet; }
/// <exception cref="NSch.JSchException"></exception> private void SetPortForwarding(string bind_address, int rport) { lock (grr) { Buffer buf = new Buffer(100); // ?? Packet packet = new Packet(buf); string address_to_bind = ChannelForwardedTCPIP.Normalize(bind_address); try { // byte SSH_MSG_GLOBAL_REQUEST 80 // string "tcpip-forward" // boolean want_reply // string address_to_bind // uint32 port number to bind packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_GLOBAL_REQUEST)); buf.PutString(Util.Str2byte("tcpip-forward")); // buf.putByte((byte)0); buf.PutByte(unchecked((byte)1)); buf.PutString(Util.Str2byte(address_to_bind)); buf.PutInt(rport); Write(packet); } catch (Exception e) { if (e is Exception) { throw new JSchException(e.ToString(), (Exception)e); } throw new JSchException(e.ToString()); } grr.SetThread(Sharpen.Thread.CurrentThread()); try { Sharpen.Thread.Sleep(10000); } catch (Exception) { } int reply = grr.GetReply(); grr.SetThread(null); if (reply == 0) { throw new JSchException("remote port forwarding failed for listen port " + rport); } } }
internal virtual byte[] GetPublicKeyBlob_rsa() { if (e_array == null) { return null; } Buffer buf = new Buffer("ssh-rsa".Length + 4 + e_array.Length + 4 + n_array.Length + 4); buf.PutString(Util.Str2byte("ssh-rsa")); buf.PutString(e_array); buf.PutString(n_array); return buf.buffer; }
// OID 1.2.840.113554.1.2.2 in DER /// <exception cref="System.Exception"></exception> public override bool Start(Session session) { base.Start(session); byte[] _username = Util.Str2byte(username); packet.Reset(); // byte SSH_MSG_USERAUTH_REQUEST(50) // string user name(in ISO-10646 UTF-8 encoding) // string service name(in US-ASCII) // string "gssapi"(US-ASCII) // uint32 n, the number of OIDs client supports // string[n] mechanism OIDS buf.PutByte(unchecked((byte)SSH_MSG_USERAUTH_REQUEST)); buf.PutString(_username); buf.PutString(Util.Str2byte("ssh-connection")); buf.PutString(Util.Str2byte("gssapi-with-mic")); buf.PutInt(supported_oid.Length); for (int i = 0; i < supported_oid.Length; i++) { buf.PutString(supported_oid[i]); } session.Write(packet); string method = null; int command; while (true) { buf = session.Read(buf); command = buf.GetCommand() & unchecked((int)(0xff)); if (command == SSH_MSG_USERAUTH_FAILURE) { return false; } if (command == SSH_MSG_USERAUTH_GSSAPI_RESPONSE) { buf.GetInt(); buf.GetByte(); buf.GetByte(); byte[] message = buf.GetString(); for (int i_1 = 0; i_1 < supported_oid.Length; i_1++) { if (Util.Array_equals(message, supported_oid[i_1])) { method = supported_method[i_1]; break; } } if (method == null) { return false; } break; } // success if (command == SSH_MSG_USERAUTH_BANNER) { buf.GetInt(); buf.GetByte(); buf.GetByte(); byte[] _message = buf.GetString(); byte[] lang = buf.GetString(); string message = Util.Byte2str(_message); if (userinfo != null) { userinfo.ShowMessage(message); } continue; } return false; } NSch.GSSContext context = null; try { Type c = Sharpen.Runtime.GetType(session.GetConfig(method)); context = (NSch.GSSContext)(System.Activator.CreateInstance(c)); } catch (Exception) { return false; } try { context.Create(username, session.host); } catch (JSchException) { return false; } byte[] token = new byte[0]; while (!context.IsEstablished()) { try { token = context.Init(token, 0, token.Length); } catch (JSchException) { // TODO // ERRTOK should be sent? // byte SSH_MSG_USERAUTH_GSSAPI_ERRTOK // string error token return false; } if (token != null) { packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_USERAUTH_GSSAPI_TOKEN)); buf.PutString(token); session.Write(packet); } if (!context.IsEstablished()) { buf = session.Read(buf); command = buf.GetCommand() & unchecked((int)(0xff)); if (command == SSH_MSG_USERAUTH_GSSAPI_ERROR) { // uint32 major_status // uint32 minor_status // string message // string language tag buf = session.Read(buf); command = buf.GetCommand() & unchecked((int)(0xff)); } else { //return false; if (command == SSH_MSG_USERAUTH_GSSAPI_ERRTOK) { // string error token buf = session.Read(buf); command = buf.GetCommand() & unchecked((int)(0xff)); } } //return false; if (command == SSH_MSG_USERAUTH_FAILURE) { return false; } buf.GetInt(); buf.GetByte(); buf.GetByte(); token = buf.GetString(); } } Buffer mbuf = new Buffer(); // string session identifier // byte SSH_MSG_USERAUTH_REQUEST // string user name // string service // string "gssapi-with-mic" mbuf.PutString(session.GetSessionId()); mbuf.PutByte(unchecked((byte)SSH_MSG_USERAUTH_REQUEST)); mbuf.PutString(_username); mbuf.PutString(Util.Str2byte("ssh-connection")); mbuf.PutString(Util.Str2byte("gssapi-with-mic")); byte[] mic = context.GetMIC(mbuf.buffer, 0, mbuf.GetLength()); if (mic == null) { return false; } packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_USERAUTH_GSSAPI_MIC)); buf.PutString(mic); session.Write(packet); context.Dispose(); buf = session.Read(buf); command = buf.GetCommand() & unchecked((int)(0xff)); if (command == SSH_MSG_USERAUTH_SUCCESS) { return true; } else { if (command == SSH_MSG_USERAUTH_FAILURE) { buf.GetInt(); buf.GetByte(); buf.GetByte(); byte[] foo = buf.GetString(); int partial_success = buf.GetByte(); //System.err.println(new String(foo)+ // " partial_success:"+(partial_success!=0)); if (partial_success != 0) { throw new JSchPartialAuthException(Util.Byte2str(foo)); } } } return false; }
/// <exception cref="NSch.JSchException"></exception> public override void Connect() { try { Session _session = GetSession(); if (!_session.IsConnected()) { throw new JSchException("session is down"); } Buffer buf = new Buffer(150); Packet packet = new Packet(buf); // send // byte SSH_MSG_CHANNEL_OPEN(90) // string channel type // // uint32 sender channel // 0 // uint32 initial window size // 0x100000(65536) // uint32 maxmum packet size // 0x4000(16384) packet.Reset(); buf.PutByte(unchecked((byte)90)); buf.PutString(Util.Str2byte("direct-tcpip")); buf.PutInt(id); buf.PutInt(lwsize); buf.PutInt(lmpsize); buf.PutString(Util.Str2byte(host)); buf.PutInt(port); buf.PutString(Util.Str2byte(originator_IP_address)); buf.PutInt(originator_port); _session.Write(packet); int retry = 1000; try { while (this.GetRecipient() == -1 && _session.IsConnected() && retry > 0 && !eof_remote ) { //Thread.sleep(500); Sharpen.Thread.Sleep(50); retry--; } } catch (Exception) { } if (!_session.IsConnected()) { throw new JSchException("session is down"); } if (retry == 0 || this.eof_remote) { throw new JSchException("channel is not opened."); } connected = true; if (io.@in != null) { thread = new Sharpen.Thread(this); thread.SetName("DirectTCPIP thread " + _session.GetHost()); if (_session.daemon_thread) { thread.SetDaemon(_session.daemon_thread); } thread.Start(); } } catch (Exception e) { io.Close(); io = null; Channel.Del(this); if (e is JSchException) { throw (JSchException)e; } } }
/// <exception cref="NSch.JSchException"></exception> public virtual void Connect(int connectTimeout) { Session _session = GetSession(); if (!_session.IsConnected()) { throw new JSchException("session is down"); } this.connectTimeout = connectTimeout; try { Buffer buf = new Buffer(100); Packet packet = new Packet(buf); // send // byte SSH_MSG_CHANNEL_OPEN(90) // string channel type // // uint32 sender channel // 0 // uint32 initial window size // 0x100000(65536) // uint32 maxmum packet size // 0x4000(16384) packet.Reset(); buf.PutByte(unchecked ((byte)90)); buf.PutString(this.type); buf.PutInt(this.id); buf.PutInt(this.lwsize); buf.PutInt(this.lmpsize); _session.Write(packet); int retry = 1000; long start = Runtime.CurrentTimeMillis(); long timeout = connectTimeout; while (this.GetRecipient() == -1 && _session.IsConnected() && retry > 0) { if (timeout > 0L) { if ((Runtime.CurrentTimeMillis() - start) > timeout) { retry = 0; continue; } } try { Sharpen.Thread.Sleep(50); } catch (Exception) { } retry--; } if (!_session.IsConnected()) { throw new JSchException("session is down"); } if (retry == 0) { throw new JSchException("channel is not opened."); } if (this.IsClosed()) { throw new JSchException("channel is not opened."); } connected = true; Start(); } catch (Exception e) { connected = false; Disconnect(); if (e is JSchException) { throw (JSchException)e; } throw new JSchException(e.ToString(), e); } }
internal virtual byte[] GetSignature_rsa(byte[] data) { try { Type c = Sharpen.Runtime.GetType((string)JSch.GetConfig("signature.rsa")); NSch.SignatureRSA rsa = (NSch.SignatureRSA)(System.Activator.CreateInstance(c)); rsa.Init(); rsa.SetPrvKey(d_array, n_array); rsa.Update(data); byte[] sig = rsa.Sign(); Buffer buf = new Buffer("ssh-rsa".Length + 4 + sig.Length + 4); buf.PutString(Util.Str2byte("ssh-rsa")); buf.PutString(sig); return buf.buffer; } catch (Exception) { } return null; }
protected internal virtual Packet GenChannelOpenPacket() { Buffer buf = new Buffer(100); Packet packet = new Packet(buf); // byte SSH_MSG_CHANNEL_OPEN(90) // string channel type // // uint32 sender channel // 0 // uint32 initial window size // 0x100000(65536) // uint32 maxmum packet size // 0x4000(16384) packet.Reset(); buf.PutByte(unchecked((byte)90)); buf.PutString(this.type); buf.PutInt(this.id); buf.PutInt(this.lwsize); buf.PutInt(this.lmpsize); return packet; }
internal virtual byte[] GetPublicKeyBlob_dss() { if (P_array == null) { return null; } Buffer buf = new Buffer("ssh-dss".Length + 4 + P_array.Length + 4 + Q_array.Length + 4 + G_array.Length + 4 + pub_array.Length + 4); buf.PutString(Util.Str2byte("ssh-dss")); buf.PutString(P_array); buf.PutString(Q_array); buf.PutString(G_array); buf.PutString(pub_array); return buf.buffer; }
public override byte[] GetPublicKeyBlob() { byte[] foo = base.GetPublicKeyBlob(); if (foo != null) { return foo; } if (pub_array == null) { return null; } Buffer buf = new Buffer(sshrsa.Length + 4 + pub_array.Length + 4 + n_array.Length + 4); buf.PutString(sshrsa); buf.PutString(pub_array); buf.PutString(n_array); return buf.buffer; }
public virtual void Run() { thread = this; byte[] foo; Buffer buf = new Buffer(); Packet packet = new Packet(buf); int i = 0; Channel channel; int[] start = new int[1]; int[] length = new int[1]; KeyExchange kex = null; int stimeout = 0; try { while (isConnected && thread != null) { try { buf = Read(buf); stimeout = 0; } catch (ThreadInterruptedException ee) { if (!in_kex && stimeout < serverAliveCountMax) { SendKeepAliveMsg(); stimeout++; continue; } throw; } int msgType = buf.GetCommand() & unchecked((int)(0xff)); if (kex != null && kex.GetState() == msgType) { kex_start_time = Runtime.CurrentTimeMillis(); bool result = kex.Next(buf); if (!result) { throw new JSchException("verify: " + result); } continue; } switch (msgType) { case SSH_MSG_KEXINIT: { //System.err.println("KEXINIT"); kex = Receive_kexinit(buf); break; } case SSH_MSG_NEWKEYS: { //System.err.println("NEWKEYS"); Send_newkeys(); Receive_newkeys(buf, kex); kex = null; break; } case SSH_MSG_CHANNEL_DATA: { buf.GetInt(); buf.GetByte(); buf.GetByte(); i = buf.GetInt(); channel = Channel.GetChannel(i, this); foo = buf.GetString(start, length); if (channel == null) { break; } if (length[0] == 0) { break; } try { channel.Write(foo, start[0], length[0]); } catch (Exception) { //System.err.println(e); try { channel.Disconnect(); } catch (Exception) { } break; } int len = length[0]; channel.SetLocalWindowSize(channel.lwsize - len); if (channel.lwsize < channel.lwsize_max / 2) { packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_CHANNEL_WINDOW_ADJUST)); buf.PutInt(channel.GetRecipient()); buf.PutInt(channel.lwsize_max - channel.lwsize); Write(packet); channel.SetLocalWindowSize(channel.lwsize_max); } break; } case SSH_MSG_CHANNEL_EXTENDED_DATA: { buf.GetInt(); buf.GetShort(); i = buf.GetInt(); channel = Channel.GetChannel(i, this); buf.GetInt(); // data_type_code == 1 foo = buf.GetString(start, length); //System.err.println("stderr: "+new String(foo,start[0],length[0])); if (channel == null) { break; } if (length[0] == 0) { break; } channel.Write_ext(foo, start[0], length[0]); int len = length[0]; channel.SetLocalWindowSize(channel.lwsize - len); if (channel.lwsize < channel.lwsize_max / 2) { packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_CHANNEL_WINDOW_ADJUST)); buf.PutInt(channel.GetRecipient()); buf.PutInt(channel.lwsize_max - channel.lwsize); Write(packet); channel.SetLocalWindowSize(channel.lwsize_max); } break; } case SSH_MSG_CHANNEL_WINDOW_ADJUST: { buf.GetInt(); buf.GetShort(); i = buf.GetInt(); channel = Channel.GetChannel(i, this); if (channel == null) { break; } channel.AddRemoteWindowSize(buf.GetInt()); break; } case SSH_MSG_CHANNEL_EOF: { buf.GetInt(); buf.GetShort(); i = buf.GetInt(); channel = Channel.GetChannel(i, this); if (channel != null) { //channel.eof_remote=true; //channel.eof(); channel.Eof_remote(); } break; } case SSH_MSG_CHANNEL_CLOSE: { buf.GetInt(); buf.GetShort(); i = buf.GetInt(); channel = Channel.GetChannel(i, this); if (channel != null) { // channel.close(); channel.Disconnect(); } break; } case SSH_MSG_CHANNEL_OPEN_CONFIRMATION: { buf.GetInt(); buf.GetShort(); i = buf.GetInt(); channel = Channel.GetChannel(i, this); if (channel == null) { } //break; int r = buf.GetInt(); long rws = buf.GetUInt(); int rps = buf.GetInt(); channel.SetRemoteWindowSize(rws); channel.SetRemotePacketSize(rps); channel.SetRecipient(r); break; } case SSH_MSG_CHANNEL_OPEN_FAILURE: { buf.GetInt(); buf.GetShort(); i = buf.GetInt(); channel = Channel.GetChannel(i, this); if (channel == null) { } //break; int reason_code = buf.GetInt(); //foo=buf.getString(); // additional textual information //foo=buf.getString(); // language tag channel.exitstatus = reason_code; channel.close = true; channel.eof_remote = true; channel.SetRecipient(0); break; } case SSH_MSG_CHANNEL_REQUEST: { buf.GetInt(); buf.GetShort(); i = buf.GetInt(); foo = buf.GetString(); bool reply = (buf.GetByte() != 0); channel = Channel.GetChannel(i, this); if (channel != null) { byte reply_type = unchecked((byte)SSH_MSG_CHANNEL_FAILURE); if ((Util.Byte2str(foo)).Equals("exit-status")) { i = buf.GetInt(); // exit-status channel.SetExitStatus(i); reply_type = unchecked((byte)SSH_MSG_CHANNEL_SUCCESS); } if (reply) { packet.Reset(); buf.PutByte(reply_type); buf.PutInt(channel.GetRecipient()); Write(packet); } } break; } case SSH_MSG_CHANNEL_OPEN: { buf.GetInt(); buf.GetShort(); foo = buf.GetString(); string ctyp = Util.Byte2str(foo); if (!"forwarded-tcpip".Equals(ctyp) && !("x11".Equals(ctyp) && x11_forwarding) && !("*****@*****.**".Equals(ctyp) && agent_forwarding)) { //System.err.println("Session.run: CHANNEL OPEN "+ctyp); //throw new IOException("Session.run: CHANNEL OPEN "+ctyp); packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_CHANNEL_OPEN_FAILURE)); buf.PutInt(buf.GetInt()); buf.PutInt(Channel.SSH_OPEN_ADMINISTRATIVELY_PROHIBITED); buf.PutString(Util.empty); buf.PutString(Util.empty); Write(packet); } else { channel = Channel.GetChannel(ctyp); AddChannel(channel); channel.GetData(buf); channel.Init(); Sharpen.Thread tmp = new Sharpen.Thread(channel); tmp.SetName("Channel " + ctyp + " " + host); if (daemon_thread) { tmp.SetDaemon(daemon_thread); } tmp.Start(); break; } goto case SSH_MSG_CHANNEL_SUCCESS; } case SSH_MSG_CHANNEL_SUCCESS: { buf.GetInt(); buf.GetShort(); i = buf.GetInt(); channel = Channel.GetChannel(i, this); if (channel == null) { break; } channel.reply = 1; break; } case SSH_MSG_CHANNEL_FAILURE: { buf.GetInt(); buf.GetShort(); i = buf.GetInt(); channel = Channel.GetChannel(i, this); if (channel == null) { break; } channel.reply = 0; break; } case SSH_MSG_GLOBAL_REQUEST: { buf.GetInt(); buf.GetShort(); foo = buf.GetString(); // request name bool reply = (buf.GetByte() != 0); if (reply) { packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_REQUEST_FAILURE)); Write(packet); } break; } case SSH_MSG_REQUEST_FAILURE: case SSH_MSG_REQUEST_SUCCESS: { Sharpen.Thread t = grr.GetThread(); if (t != null) { grr.SetReply(msgType == SSH_MSG_REQUEST_SUCCESS ? 1 : 0); t.Interrupt(); } break; } default: { //System.err.println("Session.run: unsupported type "+msgType); throw new IOException("Unknown SSH message type " + msgType); } } } } catch (Exception e) { in_kex = false; if (JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "Caught an exception, leaving main loop due to " + e.Message); } } //System.err.println("# Session.run"); //e.printStackTrace(); try { Disconnect(); } catch (ArgumentNullException) { } catch (Exception) { } //System.err.println("@1"); //e.printStackTrace(); //System.err.println("@2"); //e.printStackTrace(); isConnected = false; }
/// <exception cref="NSch.JSchException"></exception> public virtual void Connect(int connectTimeout) { if (isConnected) { throw new JSchException("session is already connected"); } io = new IO(); if (random == null) { try { Type c = Sharpen.Runtime.GetType(GetConfig("random")); random = (Random)(System.Activator.CreateInstance(c)); } catch (Exception e) { throw new JSchException(e.ToString(), e); } } Packet.SetRandom(random); if (JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "Connecting to " + host + " port " + port); } try { int i; int j; if (proxy == null) { InputStream @in; OutputStream @out; if (socket_factory == null) { socket = Util.CreateSocket(host, port, connectTimeout); @in = socket.GetInputStream(); @out = socket.GetOutputStream(); } else { socket = socket_factory.CreateSocket(host, port); @in = socket_factory.GetInputStream(socket); @out = socket_factory.GetOutputStream(socket); } //if(timeout>0){ socket.setSoTimeout(timeout); } socket.NoDelay = true; io.SetInputStream(@in); io.SetOutputStream(@out); } else { lock (proxy) { proxy.Connect(socket_factory, host, port, connectTimeout); io.SetInputStream(proxy.GetInputStream()); io.SetOutputStream(proxy.GetOutputStream()); socket = proxy.GetSocket(); } } if (connectTimeout > 0 && socket != null) { socket.ReceiveTimeout = connectTimeout; } isConnected = true; if (JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "Connection established"); } jsch.AddSession(this); { // Some Cisco devices will miss to read '\n' if it is sent separately. byte[] foo = new byte[V_C.Length + 1]; System.Array.Copy(V_C, 0, foo, 0, V_C.Length); foo[foo.Length - 1] = unchecked((byte)(byte)('\n')); io.Put(foo, 0, foo.Length); } while (true) { i = 0; j = 0; while (i < buf.buffer.Length) { j = io.GetByte(); if (j < 0) { break; } buf.buffer[i] = unchecked((byte)j); i++; if (j == 10) { break; } } if (j < 0) { throw new JSchException("connection is closed by foreign host"); } if (buf.buffer[i - 1] == 10) { // 0x0a i--; if (i > 0 && buf.buffer[i - 1] == 13) { // 0x0d i--; } } if (i <= 3 || ((i != buf.buffer.Length) && (buf.buffer[0] != 'S' || buf.buffer[1] != 'S' || buf.buffer[2] != 'H' || buf.buffer[3] != '-'))) { // It must not start with 'SSH-' //System.err.println(new String(buf.buffer, 0, i); continue; } if (i == buf.buffer.Length || i < 7 || (buf.buffer[4] == '1' && buf.buffer[6] != '9')) { // SSH-1.99 or SSH-2.0 // SSH-1.5 throw new JSchException("invalid server's version string"); } break; } V_S = new byte[i]; System.Array.Copy(buf.buffer, 0, V_S, 0, i); //System.err.println("V_S: ("+i+") ["+new String(V_S)+"]"); if (JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "Remote version string: " + Util.Byte2str(V_S)); JSch.GetLogger().Log(Logger.INFO, "Local version string: " + Util.Byte2str(V_C)); } Send_kexinit(); buf = Read(buf); if (buf.GetCommand() != SSH_MSG_KEXINIT) { in_kex = false; throw new JSchException("invalid protocol: " + buf.GetCommand()); } if (JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "SSH_MSG_KEXINIT received"); } KeyExchange kex = Receive_kexinit(buf); while (true) { buf = Read(buf); if (kex.GetState() == buf.GetCommand()) { kex_start_time = Runtime.CurrentTimeMillis(); bool result = kex.Next(buf); if (!result) { //System.err.println("verify: "+result); in_kex = false; throw new JSchException("verify: " + result); } } else { in_kex = false; throw new JSchException("invalid protocol(kex): " + buf.GetCommand()); } if (kex.GetState() == KeyExchange.STATE_END) { break; } } try { CheckHost(host, port, kex); } catch (JSchException ee) { in_kex = false; throw; } Send_newkeys(); // receive SSH_MSG_NEWKEYS(21) buf = Read(buf); //System.err.println("read: 21 ? "+buf.getCommand()); if (buf.GetCommand() == SSH_MSG_NEWKEYS) { if (JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "SSH_MSG_NEWKEYS received"); } Receive_newkeys(buf, kex); } else { in_kex = false; throw new JSchException("invalid protocol(newkyes): " + buf.GetCommand()); } bool auth = false; bool auth_cancel = false; UserAuth ua = null; try { Type c = Sharpen.Runtime.GetType(GetConfig("userauth.none")); ua = (UserAuth)(System.Activator.CreateInstance(c)); } catch (Exception e) { throw new JSchException(e.ToString(), e); } auth = ua.Start(this); string cmethods = GetConfig("PreferredAuthentications"); string[] cmethoda = Util.Split(cmethods, ","); string smethods = null; if (!auth) { smethods = ((UserAuthNone)ua).GetMethods(); if (smethods != null) { smethods = smethods.ToLower(); } else { // methods: publickey,password,keyboard-interactive //smethods="publickey,password,keyboard-interactive"; smethods = cmethods; } } string[] smethoda = Util.Split(smethods, ","); int methodi = 0; while (true) { //System.err.println("methods: "+methods); while (!auth && cmethoda != null && methodi < cmethoda.Length) { string method = cmethoda[methodi++]; bool acceptable = false; for (int k = 0; k < smethoda.Length; k++) { if (smethoda[k].Equals(method)) { acceptable = true; break; } } if (!acceptable) { continue; } //System.err.println(" method: "+method); if (JSch.GetLogger().IsEnabled(Logger.INFO)) { string str = "Authentications that can continue: "; for (int k_1 = methodi - 1; k_1 < cmethoda.Length; k_1++) { str += cmethoda[k_1]; if (k_1 + 1 < cmethoda.Length) { str += ","; } } JSch.GetLogger().Log(Logger.INFO, str); JSch.GetLogger().Log(Logger.INFO, "Next authentication method: " + method); } ua = null; try { Type c = null; if (GetConfig("userauth." + method) != null) { c = Sharpen.Runtime.GetType(GetConfig("userauth." + method)); ua = (UserAuth)(System.Activator.CreateInstance(c)); } } catch (Exception) { if (JSch.GetLogger().IsEnabled(Logger.WARN)) { JSch.GetLogger().Log(Logger.WARN, "failed to load " + method + " method"); } } if (ua != null) { auth_cancel = false; try { auth = ua.Start(this); if (auth && JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "Authentication succeeded (" + method + ")."); } } catch (JSchAuthCancelException) { auth_cancel = true; } catch (JSchPartialAuthException ee) { string tmp = smethods; smethods = ee.GetMethods(); smethoda = Util.Split(smethods, ","); if (!tmp.Equals(smethods)) { methodi = 0; } //System.err.println("PartialAuth: "+methods); auth_cancel = false; goto loop_continue; } catch (RuntimeException ee) { throw; } catch (Exception) { //System.err.println("ee: "+ee); // SSH_MSG_DISCONNECT: 2 Too many authentication failures goto loop_break; } } } break; loop_continue: ; } loop_break: ; if (!auth) { if (auth_cancel) { throw new JSchException("Auth cancel"); } throw new JSchException("Auth fail"); } if (connectTimeout > 0 || timeout > 0) { socket.ReceiveTimeout = timeout; } isAuthed = true; lock (Lock) { if (isConnected) { connectThread = new Sharpen.Thread(this); connectThread.SetName("Connect thread " + host + " session"); if (daemon_thread) { connectThread.SetDaemon(daemon_thread); } connectThread.Start(); } } } catch (Exception e) { // The session has been already down and // we don't have to start new thread. in_kex = false; if (isConnected) { try { packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_DISCONNECT)); buf.PutInt(3); buf.PutString(Util.Str2byte(e.ToString())); buf.PutString(Util.Str2byte("en")); Write(packet); Disconnect(); } catch (Exception) { } } isConnected = false; //e.printStackTrace(); if (e is RuntimeException) { throw (RuntimeException)e; } if (e is JSchException) { throw (JSchException)e; } throw new JSchException("Session.connect: " + e); } finally { Util.Bzero(this.password); this.password = null; } }
internal static void DelPort(Session session, string address_to_bind, int rport) { lock (pool) { object[] foo = null; for (int i = 0; i < pool.Count; i++) { object[] bar = (object[])(pool[i]); if (bar[0] != session) { continue; } if (((int)bar[1]) != rport) { continue; } foo = bar; break; } if (foo == null) { return; } pool.RemoveElement(foo); if (address_to_bind == null) { address_to_bind = (string)foo[4]; } if (address_to_bind == null) { address_to_bind = "0.0.0.0"; } } Buffer buf = new Buffer(100); // ?? Packet packet = new Packet(buf); try { // byte SSH_MSG_GLOBAL_REQUEST 80 // string "cancel-tcpip-forward" // boolean want_reply // string address_to_bind (e.g. "127.0.0.1") // uint32 port number to bind packet.Reset(); buf.PutByte(unchecked((byte)80)); buf.PutString(Util.Str2byte("cancel-tcpip-forward")); buf.PutByte(unchecked((byte)0)); buf.PutString(Util.Str2byte(address_to_bind)); buf.PutInt(rport); session.Write(packet); } catch (Exception) { } }
/// <exception cref="System.Exception"></exception> private void Send_kexinit() { if (in_kex) { return; } string cipherc2s = GetConfig("cipher.c2s"); string ciphers2c = GetConfig("cipher.s2c"); string[] not_available = CheckCiphers(GetConfig("CheckCiphers")); if (not_available != null && not_available.Length > 0) { cipherc2s = Util.DiffString(cipherc2s, not_available); ciphers2c = Util.DiffString(ciphers2c, not_available); if (cipherc2s == null || ciphers2c == null) { throw new JSchException("There are not any available ciphers."); } } in_kex = true; kex_start_time = Runtime.CurrentTimeMillis(); // byte SSH_MSG_KEXINIT(20) // byte[16] cookie (random bytes) // string kex_algorithms // string server_host_key_algorithms // string encryption_algorithms_client_to_server // string encryption_algorithms_server_to_client // string mac_algorithms_client_to_server // string mac_algorithms_server_to_client // string compression_algorithms_client_to_server // string compression_algorithms_server_to_client // string languages_client_to_server // string languages_server_to_client Buffer buf = new Buffer(); // send_kexinit may be invoked Packet packet = new Packet(buf); // by user thread. packet.Reset(); buf.PutByte(unchecked((byte)SSH_MSG_KEXINIT)); lock (random) { random.Fill(buf.buffer, buf.index, 16); buf.Skip(16); } buf.PutString(Util.Str2byte(GetConfig("kex"))); buf.PutString(Util.Str2byte(GetConfig("server_host_key"))); buf.PutString(Util.Str2byte(cipherc2s)); buf.PutString(Util.Str2byte(ciphers2c)); buf.PutString(Util.Str2byte(GetConfig("mac.c2s"))); buf.PutString(Util.Str2byte(GetConfig("mac.s2c"))); buf.PutString(Util.Str2byte(GetConfig("compression.c2s"))); buf.PutString(Util.Str2byte(GetConfig("compression.s2c"))); buf.PutString(Util.Str2byte(GetConfig("lang.c2s"))); buf.PutString(Util.Str2byte(GetConfig("lang.s2c"))); buf.PutByte(unchecked((byte)0)); buf.PutInt(0); buf.SetOffSet(5); I_C = new byte[buf.GetLength()]; buf.GetByte(I_C); Write(packet); if (JSch.GetLogger().IsEnabled(Logger.INFO)) { JSch.GetLogger().Log(Logger.INFO, "SSH_MSG_KEXINIT sent"); } }
/// <exception cref="NSch.JSchException"></exception> public override void Connect() { try { Session _session = GetSession(); if (!_session.IsConnected()) { throw new JSchException("session is down"); } Buffer buf = new Buffer(150); Packet packet = new Packet(buf); // send // byte SSH_MSG_CHANNEL_OPEN(90) // string channel type // // uint32 sender channel // 0 // uint32 initial window size // 0x100000(65536) // uint32 maxmum packet size // 0x4000(16384) packet.Reset(); buf.PutByte(unchecked ((byte)90)); buf.PutString(Util.Str2byte("direct-tcpip")); buf.PutInt(id); buf.PutInt(lwsize); buf.PutInt(lmpsize); buf.PutString(Util.Str2byte(host)); buf.PutInt(port); buf.PutString(Util.Str2byte(originator_IP_address)); buf.PutInt(originator_port); _session.Write(packet); int retry = 1000; try { while (this.GetRecipient() == -1 && _session.IsConnected() && retry > 0 && !eof_remote ) { //Thread.sleep(500); Sharpen.Thread.Sleep(50); retry--; } } catch (Exception) { } if (!_session.IsConnected()) { throw new JSchException("session is down"); } if (retry == 0 || this.eof_remote) { throw new JSchException("channel is not opened."); } connected = true; if (io.@in != null) { thread = new Sharpen.Thread(this); thread.SetName("DirectTCPIP thread " + _session.GetHost()); if (_session.daemon_thread) { thread.SetDaemon(_session.daemon_thread); } thread.Start(); } } catch (Exception e) { io.Close(); io = null; Channel.Del(this); if (e is JSchException) { throw (JSchException)e; } } }