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1
18
19 package com.knowgate.jcifs.smb;
20
21 import java.util.Enumeration  ;
22
23 import com.knowgate.debug.*;
24
25 abstract class SmbComTransactionResponse extends ServerMessageBlock implements Enumeration {
26
27 private static final int SETUP_OFFSET = 61;
29
30 private static final int DISCONNECT_TID = 0x01;
31 private static final int ONE_WAY_TRANSACTION = 0x02;
32
33 private int totalParameterCount;
34 private int totalDataCount;
35 private int parameterCount;
36 private int parameterOffset;
37 private int parameterDisplacement;
38 private int dataOffset;
39 private int dataDisplacement;
40 private int setupCount;
41 private int pad;
42 private int pad1;
43 private boolean parametersDone, dataDone;
44
45 private int bufParameterStart;
46 private int bufDataStart;
47
48 int dataCount;
49 byte subCommand;
50 boolean hasMore = true;
51 boolean isPrimary = true;
52 byte[] txn_buf;
53
54
55 int status;
56 int numEntries;
57 FileEntry[] results;
58
59 SmbComTransactionResponse() {
60 txn_buf = null;
61 }
62
63 public void reset() {
64 bufDataStart = 0;
65 isPrimary = hasMore = true;
66 parametersDone = dataDone = false;
67 }
68 public boolean hasMoreElements() {
69 return hasMore;
70 }
71 public Object nextElement() {
72 if( isPrimary ) {
73 isPrimary = false;
74 }
75 return this;
76 }
77 int writeParameterWordsWireFormat( byte[] dst, int dstIndex ) {
78 return 0;
79 }
80 int writeBytesWireFormat( byte[] dst, int dstIndex ) {
81 return 0;
82 }
83 int readParameterWordsWireFormat( byte[] buffer, int bufferIndex ) {
84 int start = bufferIndex;
85
86 totalParameterCount = readInt2( buffer, bufferIndex );
87 if( bufDataStart == 0 ) {
88 bufDataStart = totalParameterCount;
89 }
90 bufferIndex += 2;
91 totalDataCount = readInt2( buffer, bufferIndex );
92 bufferIndex += 4; parameterCount = readInt2( buffer, bufferIndex );
94 bufferIndex += 2;
95 parameterOffset = readInt2( buffer, bufferIndex );
96 bufferIndex += 2;
97 parameterDisplacement = readInt2( buffer, bufferIndex );
98 bufferIndex += 2;
99 dataCount = readInt2( buffer, bufferIndex );
100 bufferIndex += 2;
101 dataOffset = readInt2( buffer, bufferIndex );
102 bufferIndex += 2;
103 dataDisplacement = readInt2( buffer, bufferIndex );
104 bufferIndex += 2;
105 setupCount = buffer[bufferIndex] & 0xFF;
106 bufferIndex += 2;
107 if( setupCount != 0 ) {
108 if( DebugFile.trace )
109 DebugFile.writeln( "setupCount is not zero: " + setupCount );
110 }
111
112 return bufferIndex - start;
113 }
114 int readBytesWireFormat( byte[] buffer, int bufferIndex ) {
115 pad = pad1 = 0;
116 int n;
117
118 if( parameterCount > 0 ) {
119 bufferIndex += pad = parameterOffset - ( bufferIndex - headerStart );
120 System.arraycopy( buffer, bufferIndex, txn_buf,
121 bufParameterStart + parameterDisplacement, parameterCount );
122 bufferIndex += parameterCount;
123 }
124 if( dataCount > 0 ) {
125 bufferIndex += pad1 = dataOffset - ( bufferIndex - headerStart );
126 System.arraycopy( buffer, bufferIndex, txn_buf,
127 bufDataStart + dataDisplacement, dataCount );
128 bufferIndex += dataCount;
129 }
130
131
134
135 if( !parametersDone &&
136 ( parameterDisplacement + parameterCount ) == totalParameterCount) {
137 parametersDone = true;
138 }
139
140 if( !dataDone &&
141 ( dataDisplacement + dataCount ) == totalDataCount) {
142 dataDone = true;
143 }
144
145 if( parametersDone && dataDone ) {
146 hasMore = false;
147 readParametersWireFormat( txn_buf, bufParameterStart, totalParameterCount );
148 readDataWireFormat( txn_buf, bufDataStart, totalDataCount );
149 }
150
151 return pad + parameterCount + pad1 + dataCount;
152 }
153
154 abstract int writeSetupWireFormat( byte[] dst, int dstIndex );
155 abstract int writeParametersWireFormat( byte[] dst, int dstIndex );
156 abstract int writeDataWireFormat( byte[] dst, int dstIndex );
157 abstract int readSetupWireFormat( byte[] buffer, int bufferIndex, int len );
158 abstract int readParametersWireFormat( byte[] buffer, int bufferIndex, int len );
159 abstract int readDataWireFormat( byte[] buffer, int bufferIndex, int len );
160
161 public String toString() {
162 return new String ( super.toString() +
163 ",totalParameterCount=" + totalParameterCount +
164 ",totalDataCount=" + totalDataCount +
165 ",parameterCount=" + parameterCount +
166 ",parameterOffset=" + parameterOffset +
167 ",parameterDisplacement=" + parameterDisplacement +
168 ",dataCount=" + dataCount +
169 ",dataOffset=" + dataOffset +
170 ",dataDisplacement=" + dataDisplacement +
171 ",setupCount=" + setupCount +
172 ",pad=" + pad +
173 ",pad1=" + pad1 );
174 }
175 }
176 |
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