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1
18
19 package jcifs.smb;
20
21 import jcifs.Config;
22
23 class SmbComSessionSetupAndX extends AndXServerMessageBlock {
24
25 private static final int BATCH_LIMIT =
26 Config.getInt( "jcifs.smb.client.SessionSetupAndX.TreeConnectAndX", 1 );
27 private static final boolean DISABLE_PLAIN_TEXT_PASSWORDS =
28 Config.getBoolean( "jcifs.smb.client.disablePlainTextPasswords", true );
29
30 private byte[] accountPassword, unicodePassword;
31 private int passwordLength, unicodePasswordLength;
32 private int sessionKey;
33 private String  accountName, primaryDomain;
34
35 SmbSession session;
36 NtlmPasswordAuthentication auth;
37
38 SmbComSessionSetupAndX( SmbSession session, ServerMessageBlock andx ) throws SmbException {
39 super( andx );
40 command = SMB_COM_SESSION_SETUP_ANDX;
41 this.session = session;
42 this.auth = session.auth;
43 if( auth.hashesExternal && auth.challenge != session.transport.server.encryptionKey ) {
44 throw new SmbAuthException( SmbException.NT_STATUS_ACCESS_VIOLATION );
45 }
46 }
47
48 int getBatchLimit( byte command ) {
49 return command == SMB_COM_TREE_CONNECT_ANDX ? BATCH_LIMIT : 0;
50 }
51 int writeParameterWordsWireFormat( byte[] dst, int dstIndex ) {
52 int start = dstIndex;
53
54 if( session.transport.server.security == SECURITY_USER &&
55 ( auth.hashesExternal || auth.password.length() > 0 )) {
56 if( session.transport.server.encryptedPasswords ) {
57 accountPassword = auth.getAnsiHash( session.transport.server.encryptionKey );
58 passwordLength = accountPassword.length;
59 unicodePassword = auth.getUnicodeHash( session.transport.server.encryptionKey );
60 unicodePasswordLength = unicodePassword.length;
61 if (unicodePasswordLength == 0 && passwordLength == 0) {
63 throw new RuntimeException ("Null setup prohibited.");
64 }
65 } else if( DISABLE_PLAIN_TEXT_PASSWORDS ) {
66 throw new RuntimeException ( "Plain text passwords are disabled" );
67 } else if( useUnicode ) {
68 String password = auth.getPassword();
70 accountPassword = new byte[0];
71 passwordLength = 0;
72 unicodePassword = new byte[(password.length() + 1) * 2];
73 unicodePasswordLength = writeString( password, unicodePassword, 0 );
74 } else {
75 String password = auth.getPassword();
77 accountPassword = new byte[(password.length() + 1) * 2];
78 passwordLength = writeString( password, accountPassword, 0 );
79 unicodePassword = new byte[0];
80 unicodePasswordLength = 0;
81 }
82 } else {
83 passwordLength = unicodePasswordLength = 0;
85 }
86
87 sessionKey = session.transport.sessionKey;
88
89 writeInt2( session.transport.snd_buf_size, dst, dstIndex );
90 dstIndex += 2;
91 writeInt2( session.transport.maxMpxCount, dst, dstIndex );
92 dstIndex += 2;
93 writeInt2( session.transport.VC_NUMBER, dst, dstIndex );
94 dstIndex += 2;
95 writeInt4( sessionKey, dst, dstIndex );
96 dstIndex += 4;
97 writeInt2( passwordLength, dst, dstIndex );
98 dstIndex += 2;
99 writeInt2( unicodePasswordLength, dst, dstIndex );
100 dstIndex += 2;
101 dst[dstIndex++] = (byte)0x00;
102 dst[dstIndex++] = (byte)0x00;
103 dst[dstIndex++] = (byte)0x00;
104 dst[dstIndex++] = (byte)0x00;
105 writeInt4( session.transport.capabilities, dst, dstIndex );
106 dstIndex += 4;
107
108 return dstIndex - start;
109 }
110 int writeBytesWireFormat( byte[] dst, int dstIndex ) {
111 int start = dstIndex;
112
113 accountName = useUnicode ? auth.username : auth.username.toUpperCase();
114 primaryDomain = auth.domain.toUpperCase();
115
116 if( session.transport.server.security == SECURITY_USER &&
117 ( auth.hashesExternal || auth.password.length() > 0 )) {
118 System.arraycopy( accountPassword, 0, dst, dstIndex, passwordLength );
119 dstIndex += passwordLength;
120 if (session.transport.server.encryptedPasswords == false && useUnicode) {
121
123 if ((( dstIndex - headerStart ) % 2 ) != 0 ) {
124 dst[dstIndex++] = (byte)'\0';
125 }
126 }
127 System.arraycopy( unicodePassword, 0, dst, dstIndex, unicodePasswordLength );
128 dstIndex += unicodePasswordLength;
129 }
130
131 dstIndex += writeString( accountName, dst, dstIndex );
132 dstIndex += writeString( primaryDomain, dst, dstIndex );
133 dstIndex += writeString( session.transport.NATIVE_OS, dst, dstIndex );
134 dstIndex += writeString( session.transport.NATIVE_LANMAN, dst, dstIndex );
135
136 return dstIndex - start;
137 }
138 int readParameterWordsWireFormat( byte[] buffer, int bufferIndex ) {
139 return 0;
140 }
141 int readBytesWireFormat( byte[] buffer, int bufferIndex ) {
142 return 0;
143 }
144 public String toString() {
145 String result = new String ( "SmbComSessionSetupAndX[" +
146 super.toString() +
147 ",snd_buf_size=" + session.transport.snd_buf_size +
148 ",maxMpxCount=" + session.transport.maxMpxCount +
149 ",VC_NUMBER=" + session.transport.VC_NUMBER +
150 ",sessionKey=" + sessionKey +
151 ",passwordLength=" + passwordLength +
152 ",unicodePasswordLength=" + unicodePasswordLength +
153 ",capabilities=" + session.transport.capabilities +
154 ",accountName=" + accountName +
155 ",primaryDomain=" + primaryDomain +
156 ",NATIVE_OS=" + session.transport.NATIVE_OS +
157 ",NATIVE_LANMAN=" + session.transport.NATIVE_LANMAN + "]" );
158 return result;
159 }
160 }
161 |
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