/*
*
*
* Copyright 1990-2009 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License version
* 2 only, as published by the Free Software Foundation.
*
* This program 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
* General Public License version 2 for more details (a copy is
* included at /legal/license.txt).
*
* You should have received a copy of the GNU General Public License
* version 2 along with this work; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.satsa.util.pkcs15;
import com.sun.satsa.util.*;
import java.util.Vector;
import java.io.IOException;
import java.util.Enumeration;
import javax.microedition.io.ConnectionNotFoundException;
/**
* This class represents the PKCS15 DIR file abstraction.
*<pre>
* It is assumed that the DIR file contains information about
* files in the following format:
* APP_CONSTRUCTED_1 { [APPLICATION 1]
* APP_PRIMITIVE_15 Aid (Octet_string)
* APP_PRIMITIVE_16 label (UTF8String / opt)
* APP_PRIMITIVE_17 path (octet_string)
* APP_PRIMITIVE_19 { DDO (ddo / opt)
* SEQUENCE {
* oid OBJECT IDENTIFIER,
* odfPath Path OPTIONAL,
* tokenInfoPath [0] Path OPTIONAL,
* unusedPath [1] Path OPTIONAL,
* }
* }
* }
* </pre>
*/
public class DIRF extends PKCS15File {
/** Wrong DIR file status code */
public static final int WRONG_DIR_FILE = -1;
/** Success status code */
public static final int SUCCESS = 0;
/** AID is not found status code */
public static final int AID_NOT_FOUND = 1;
/** Root is not selected status code */
public static final int ROOT_NOT_SELECTED = 2;
/** The PKCS15 application AID (according to pkcs15 spec. */
byte[] PKCS_AID = {(byte)0xa0, 0x0, 0x0, 0x0, 0x63, 0x50,
0x4b, 0x43, 0x53, 0x2d, 0x31, 0x35
};
/** The PKCS15 DIR file name */
short[] DIR_FILE = {0x2F00};
/** ASN application specific flag used in types (0x40). */
public static final int APPLICATION = 0x40;
/** ASN application specific constructed flag used in types (0x60). */
public static final int APP_CONSTRUCTED_0 = APPLICATION +
TLV.CONSTRUCTED;
/** ASN application specific primitive flag */
public static final int APP_PRIMITIVE_0 = APPLICATION;
/** ASN application specific constructed flag used in types (0x60). */
public static final int APP_CONSTRUCTED_1 =
APP_CONSTRUCTED_0 + 1;
/** ASN application specific flag for [APPLICATION 15] (aid) */
public static final int APP_PRIMITIVE_15 =
APP_PRIMITIVE_0 + 0xf;
/** ASN application specific flag for [APPLICATION 16] (label) */
public static final int APP_PRIMITIVE_16 =
APP_PRIMITIVE_0 + 0x10;
/** ASN application specific flag for [APPLICATION 17] (path) */
public static final int APP_PRIMITIVE_17 =
APP_PRIMITIVE_0 + 0x11;
/** ASN application specific flag for [APPLICATION 19] (ddo) */
public static final int APP_CONSTRUCTED_19 =
APP_CONSTRUCTED_0 + 0x13;
/** This vector contains parsed objects from DIR */
private Vector DIR;
/**
* Creates the DIRF object
* @param fs FileSystemAbstract file system that is used
* to reading from file.
*/
public DIRF(FileSystemAbstract fs) {
super(fs);
}
/**
* Reads DIR .
* @throws IOException if I/O error occurs
* @throws TLVException if TLV error occurs
*/
public void load() throws IOException, TLVException {
DIR = new Vector();
resetLoader(DIR, null, null);
parseDF(DIR_FILE);
}
/**
* Seeks record in the DIR file according to the pointed AID
* @param aid byte[] required AID
* @return TLV containing the required record
* @throws TLVException if TLV error occurs
*/
private TLV getApp(byte[] aid) throws TLVException {
for (Enumeration e = DIR.elements(); e.hasMoreElements();) {
TLV root = (TLV) e.nextElement();
if (root.type != APP_CONSTRUCTED_1) {
throw new TLVException("The first tag shall be APPLICATION 1");
}
while (root != null) {
TLV t = root.child; /* APP_PRIMITIVE_15 */
if (t.type != APP_PRIMITIVE_15) {
throw new TLVException(
"The first tag shall be APPLICATION 15 (AID)");
}
if (Utils.byteMatch(aid, t.getValue())) {
return root;
}
root = root.next;
}
}
return null;
}
/**
* Sets a root for the PKCS15 application
* @return int Status code.
*/
public int setPKCSRoot() {
return setRoot(PKCS_AID);
}
/**
* Sets a root for the application with the pointed AID
* @param aid byte[] required AID
* @return int Status code.
*/
public int setRoot(byte[] aid) {
TLV root;
try {
root = getApp(aid);
} catch (TLVException e) {
return WRONG_DIR_FILE;
}
if (root == null) {
return AID_NOT_FOUND;
}
TLV t = root.child; /* AID */
/* Find the path item */
while ((t != null) && (t.type != APP_PRIMITIVE_17)) {
t = t.next;
}
if (t == null) {
return WRONG_DIR_FILE;
}
byte[] pth = t.getValue();
short[] path = new short[pth.length / 2];
for (int i = 0; i < pth.length; i = i+2) {
path[i/2] = Utils.getShort(pth, i);
}
try {
files.selectRoot(path);
} catch (IOException ie) {
return ROOT_NOT_SELECTED;
}
return SUCCESS;
}
}