/
SMBUtil.java
125 lines (99 loc) · 4.99 KB
/
SMBUtil.java
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/*
* © 2016 AgNO3 Gmbh & Co. KG
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package jcifs.internal.util;
import jcifs.SmbConstants;
/**
* @author mbechler
*
*/
@SuppressWarnings ( "javadoc" )
public class SMBUtil {
public static void writeInt2 ( long val, byte[] dst, int dstIndex ) {
dst[ dstIndex ] = (byte) ( val );
dst[ ++dstIndex ] = (byte) ( val >> 8 );
}
public static void writeInt4 ( long val, byte[] dst, int dstIndex ) {
dst[ dstIndex ] = (byte) ( val );
dst[ ++dstIndex ] = (byte) ( val >>= 8 );
dst[ ++dstIndex ] = (byte) ( val >>= 8 );
dst[ ++dstIndex ] = (byte) ( val >> 8 );
}
public static int readInt2 ( byte[] src, int srcIndex ) {
return ( src[ srcIndex ] & 0xFF ) + ( ( src[ srcIndex + 1 ] & 0xFF ) << 8 );
}
public static int readInt4 ( byte[] src, int srcIndex ) {
return ( src[ srcIndex ] & 0xFF ) + ( ( src[ srcIndex + 1 ] & 0xFF ) << 8 ) + ( ( src[ srcIndex + 2 ] & 0xFF ) << 16 )
+ ( ( src[ srcIndex + 3 ] & 0xFF ) << 24 );
}
public static long readInt8 ( byte[] src, int srcIndex ) {
return ( readInt4(src, srcIndex) & 0xFFFFFFFFL ) + ( (long) ( readInt4(src, srcIndex + 4) ) << 32 );
}
public static void writeInt8 ( long val, byte[] dst, int dstIndex ) {
dst[ dstIndex ] = (byte) ( val );
dst[ ++dstIndex ] = (byte) ( val >>= 8 );
dst[ ++dstIndex ] = (byte) ( val >>= 8 );
dst[ ++dstIndex ] = (byte) ( val >>= 8 );
dst[ ++dstIndex ] = (byte) ( val >>= 8 );
dst[ ++dstIndex ] = (byte) ( val >>= 8 );
dst[ ++dstIndex ] = (byte) ( val >>= 8 );
dst[ ++dstIndex ] = (byte) ( val >> 8 );
}
public static long readTime ( byte[] src, int srcIndex ) {
int low = readInt4(src, srcIndex);
int hi = readInt4(src, srcIndex + 4);
long t = ( (long) hi << 32L ) | ( low & 0xFFFFFFFFL );
t = ( t / 10000L - SmbConstants.MILLISECONDS_BETWEEN_1970_AND_1601 );
return t;
}
public static void writeTime ( long t, byte[] dst, int dstIndex ) {
if ( t != 0L ) {
t = ( t + SmbConstants.MILLISECONDS_BETWEEN_1970_AND_1601 ) * 10000L;
}
writeInt8(t, dst, dstIndex);
}
public static long readUTime ( byte[] buffer, int bufferIndex ) {
return ( readInt4(buffer, bufferIndex) & 0xFFFFFFFFL ) * 1000L;
}
public static void writeUTime ( long t, byte[] dst, int dstIndex ) {
writeInt4(t / 1000, dst, dstIndex);
}
public static final byte[] SMB_HEADER = {
(byte) 0xFF, (byte) 'S', (byte) 'M', (byte) 'B', (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
(byte) 0x00, (byte) 0x00
};
public static final byte[] SMB2_HEADER = {
(byte) 0xFE, (byte) 'S', (byte) 'M', (byte) 'B', // ProtocolId
(byte) 64, (byte) 0x00, // StructureSize (LE)
(byte) 0x00, (byte) 0x00, // CreditCharge (reserved 2.0.2)
(byte) 0x00, (byte) 0x00, // ChannelSequence
(byte) 0x00, (byte) 0x00, // Reserved
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // Status
(byte) 0x00, (byte) 0x00, // Command
(byte) 0x00, (byte) 0x00, // CreditRequest/CreditResponse
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // Flags
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // NextCommand
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // MessageId
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // Reserved / AsyncId
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // TreeId / AsyncId
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // SessionId
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // Signature
(byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, // Signature
// (cont)
};
}