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Java file server with SMB, FTP/FTPS and NFS support, virtual filesystems, database filesystems
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/*
* Copyright (C) 2020 GK Spencer
*
* JFileServer 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 3 of the License, or
* (at your option) any later version.
*
* JFileServer 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 JFileServer. If not, see _idMap = new HashMap<>();
/**
* Static initializer
*/
static {
for ( ProcedureId id : ProcedureId.values())
_idMap.put( id.intValue(), id);
}
/**
* Enum constructor
*
* @param id int
*/
ProcedureId(int id) { procId = id; }
/**
* Return the procedure id as an int
*
* @return int
*/
public final int intValue() { return procId; }
/**
* Create a procedure id type from an int
*
* @param typ int
* @return ProcedureId
*/
public static final ProcedureId fromInt(int typ) {
if ( _idMap.containsKey( typ))
return _idMap.get( typ);
return Invalid;
}
}
// NFS v3 status codes
public enum StatusCode {
Success(0),
Perm(1),
NoEnt(2),
IO(5),
NxIO(6),
Access(13),
Exist(17),
XDev(18),
NoDev(19),
NotDir(20),
IsDir(21),
InVal(22),
FBig(27),
NoSpc(28),
ROFS(30),
MLink(31),
NameTooLong(63),
NotEmpty(66),
DQuot(69),
Stale(70),
Remote(71),
BadHandle(10001),
NotSync(10002),
BadCookie(10003),
NotSupp(10004),
TooSmall(10005),
ServerFault(10006),
BadType(10007),
JukeBox(10008),
Invalid(0xFFFF);
private final int stsCode;
// Mapping status code to id
private static Map _stsMap = new HashMap<>();
/**
* Static initializer
*/
static {
for ( StatusCode sts : StatusCode.values())
_stsMap.put( sts.intValue(), sts);
}
/**
* Enum constructor
*
* @param id int
*/
StatusCode(int id) { stsCode = id; }
/**
* Return the status code as an int
*
* @return int
*/
public final int intValue() { return stsCode; }
/**
* Create a status code type from an int
*
* @param sts int
* @return StatusCode
*/
public static final StatusCode fromInt(int sts) {
if ( _stsMap.containsKey( sts))
return _stsMap.get( sts);
return Invalid;
}
/**
* Return an error status string for the specified status code
*
* @return String
*/
public final String getStatusString() {
String str = null;
switch ( this) {
case Success:
str = "Success status";
break;
case Access:
str = "Access denied";
break;
case BadCookie:
str = "Bad cookie";
break;
case BadHandle:
str = "Bad handle";
break;
case BadType:
str = "Bad type";
break;
case DQuot:
str = "Quota exceeded";
break;
case Perm:
str = "No permission";
break;
case Exist:
str = "Already exists";
break;
case FBig:
str = "File too large";
break;
case InVal:
str = "Invalid argument";
break;
case IO:
str = "I/O error";
break;
case IsDir:
str = "Is directory";
break;
case JukeBox:
str = "Jukebox";
break;
case MLink:
str = "Too many hard links";
break;
case NameTooLong:
str = "Name too long";
break;
case NoDev:
str = "No such device";
break;
case NoEnt:
str = "No entity";
break;
case NoSpc:
str = "No space left on device";
break;
case NotSync:
str = "Update synchronization mismatch";
break;
case NotDir:
str = "Not directory";
break;
case NotEmpty:
str = "Not empty";
break;
case NotSupp:
str = "Not supported";
break;
case NxIO:
str = "Nxio";
break;
case Remote:
str = "Too many levels of remote in path";
break;
case ROFS:
str = "Readonly filesystem";
break;
case ServerFault:
str = "Server fault";
break;
case Stale:
str = "Stale";
break;
case TooSmall:
str = "Too small";
break;
case XDev:
str = "Cross device hard link attempted";
break;
}
return str;
}
}
// Data structure limits
public static final int FileHandleSize = 32; // can be 64 for NFS v3
public static final int WriteVerfSize = 8;
public static final int CreateVerfSize = 8;
public static final int CookieVerfSize = 8;
// File types
public enum FileType {
Regular(1),
Directory(2),
Block(3),
Character(4),
Link(5),
Socket(6),
Fifo(7),
Invalid(0xFFFF);
private final int fileType;
/**
* Enum constructor
*
* @param typ int
*/
FileType(int typ) { fileType = typ; }
/**
* Return the file type as an int
*
* @return int
*/
public final int intValue() { return fileType; }
/**
* Create a file type from an int
*
* @param typ int
* @return FileType
*/
public static final FileType fromInt(int typ) {
FileType fType = Invalid;
switch ( typ) {
case 1:
fType = Regular;
break;
case 2:
fType = Directory;
break;
case 3:
fType = Block;
break;
case 4:
fType = Character;
break;
case 5:
fType = Link;
break;
case 6:
fType = Socket;
break;
case 7:
fType = Fifo;
break;
}
return fType;
}
}
// Filesystem properties
public static final int FileSysLink = 0x0001; // supports hard links
public static final int FileSysSymLink = 0x0002; // supports symbolic links
public static final int FileSysHomogeneuos = 0x0004; // PATHCONF valid for all files
public static final int FileSysCanSetTime = 0x0008; // can set time on server side
// Access mask
public static final int AccessRead = 0x0001;
public static final int AccessLookup = 0x0002;
public static final int AccessModify = 0x0004;
public static final int AccessExtend = 0x0008;
public static final int AccessDelete = 0x0010;
public static final int AccessExecute = 0x0020;
public static final int AccessAll = 0x003F;
// Create mode values
public enum CreateMode {
Unchecked(1),
Guarded(2),
Exclusive(3),
Invalid(0xFFFF);
private final int createMode;
/**
* Enum constructor
*
* @param mode int
*/
CreateMode(int mode) { createMode = mode; }
/**
* Return the create mode as an int
*
* @return int
*/
public final int intValue() { return createMode; }
/**
* Create a create mode from an int
*
* @param mode int
* @return CreateMode
*/
public static final CreateMode fromInt(int mode) {
CreateMode cMode = Invalid;
switch( mode) {
case 1:
cMode = Unchecked;
break;
case 2:
cMode = Guarded;
break;
case 3:
cMode = Exclusive;
break;
}
return cMode;
}
}
// Write request stable values
public enum WriteStable {
Unstable(0),
DataSync(1),
FileSync(2),
Invalid(0xFFFF);
private final int writeStable;
/**
* Enum constructor
*
* @param wrStable int
*/
WriteStable(int wrStable) { writeStable = wrStable; }
/**
* Return the write stable value as an int
*
* @return int
*/
public final int intValue() { return writeStable; }
/**
* Create a write stable value from an int
*
* @param wrVal int
* @return WriteStable
*/
public static final WriteStable fromInt(int wrVal) {
WriteStable wrStable = Invalid;
switch( wrVal) {
case 0:
wrStable = Unstable;
break;
case 1:
wrStable = DataSync;
break;
case 2:
wrStable = FileSync;
break;
}
return wrStable;
}
}
// Set attributes file timestamp settings
public enum SetAttrTimestamp {
DoNotSet(0),
TimeServer(1),
TimeClient(2),
Invalid(0xFFFF);
private final int setTime;
/**
* Enum constructor
*
* @param setAttr int
*/
SetAttrTimestamp(int setAttr) { setTime = setAttr; }
/**
* Return the set timestamp value as an int
*
* @return int
*/
public final int intValue() { return setTime; }
/**
* Create a set timestamp value from an int
*
* @param setVal int
* @return SetAttrTimestamp
*/
public static final SetAttrTimestamp fromInt(int setVal) {
SetAttrTimestamp setAttr = Invalid;
switch( setVal) {
case 0:
setAttr = DoNotSet;
break;
case 1:
setAttr = TimeServer;
break;
case 2:
setAttr = TimeClient;
break;
}
return setAttr;
}
}
}