001: /*
002: *
003: *
004: * Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
005: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
006: *
007: * This program is free software; you can redistribute it and/or
008: * modify it under the terms of the GNU General Public License version
009: * 2 only, as published by the Free Software Foundation.
010: *
011: * This program is distributed in the hope that it will be useful, but
012: * WITHOUT ANY WARRANTY; without even the implied warranty of
013: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014: * General Public License version 2 for more details (a copy is
015: * included at /legal/license.txt).
016: *
017: * You should have received a copy of the GNU General Public License
018: * version 2 along with this work; if not, write to the Free Software
019: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
020: * 02110-1301 USA
021: *
022: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
023: * Clara, CA 95054 or visit www.sun.com if you need additional
024: * information or have any questions.
025: */
026:
027: package acl_data;
028:
029: import java.util.Vector;
030: import java.io.IOException;
031:
032: /**
033: * This class represents access control list (ACL).
034: */
035: public class ACList {
036:
037: /**
038: * AID for this ACL.
039: */
040: private byte[] AID;
041: /**
042: * The list of ACEs.
043: */
044: private Vector ACEntries = new Vector();
045:
046: /** The first ACF file number */
047: private static final short FIRST_ACF_FAIL = 0x5310;
048: /** number of ACF file */
049: private short num;
050: /** ACIF record */
051: private TLV acifRec;
052:
053: /**
054: * Constructs ACL object.
055: * @param r reader for permissions file.
056: * @param num path to ACIF.
057: * @throws IOException if I/O error occurs.
058: */
059: ACList(ACLFileReader r, short num) throws IOException {
060:
061: byte[] aid = new byte[16];
062:
063: int count = 0;
064: String s = r.readWord();
065: while (!s.equals("{")) {
066: aid[count++] = (byte) Short.parseShort(s, 16);
067: s = r.readWord();
068: }
069:
070: if (count > 0) {
071: AID = new byte[count];
072: System.arraycopy(aid, 0, AID, 0, count);
073: }
074:
075: Vector pin_info = new Vector();
076:
077: while (true) {
078:
079: s = r.readWord();
080:
081: if (s.equals("}")) {
082: break;
083: }
084:
085: if (!s.equals("ace")) {
086: throw new IOException();
087: }
088:
089: ACEntries.addElement(new ACEntry(r, pin_info));
090: }
091:
092: this .num = num;
093: createACIFRec(AID, num);
094:
095: }
096:
097: /**
098: * SEQUENCE OF {
099: * SEQUENCE {
100: * OCTET_STRING // aid (Optional)
101: * SEQUENCE {
102: * OCTET_STRING // path
103: * INTEGER // index
104: * CONTEXT_PRIMITIVE_0 { ???
105: * INTEGER // length
106: * }
107: * }
108: * }
109: * }
110: * AID ::= OCTET STRING
111: */
112: /**
113: * Creates ACIF record.
114: * @param AID aid of record
115: * @param num path to ACIF
116: */
117: private void createACIFRec(byte[] AID, short num) {
118: acifRec = TLV.createSequence(); /* SEQUENCE */
119: TLV current = acifRec.setChild(new TLV(TLV.NULL_TYPE));
120: TLV t;
121: if (AID != null) {
122: current = current.setNext(TLV.createOctetString(AID));
123: }
124: current = current.setNext(TLV.createSequence());
125: t = TLV.createOctetString(Utils.shortToBytes(num)); /* path */
126: current.setChild(t);
127:
128: acifRec.child = acifRec.child.next;
129: }
130:
131: /**
132: * Returns ACIF record
133: * @return acifRec
134: */
135: public TLV getACIFRec() {
136: return acifRec;
137: }
138:
139: /**
140: * Returns the list of ACEs.
141: * @return the list of ACEs.
142: */
143: public Vector getACEntries() {
144: return ACEntries;
145: }
146:
147: /**
148: * Returns the num value
149: * @return the num value
150: */
151: short getNum() {
152: return num;
153: }
154: }
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