1/*
2 * Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package sun.security.smartcardio;
27
28import java.io.File;
29import java.io.IOException;
30
31import java.security.AccessController;
32import java.security.PrivilegedAction;
33
34import sun.security.util.Debug;
35
36/**
37 * Platform specific code and functions for Unix / MUSCLE based PC/SC
38 * implementations.
39 *
40 * @since   1.6
41 * @author  Andreas Sterbenz
42 */
43class PlatformPCSC {
44
45    static final Debug debug = Debug.getInstance("pcsc");
46
47    static final Throwable initException;
48
49    private final static String PROP_NAME = "sun.security.smartcardio.library";
50
51    private final static String LIB1 = "/usr/$LIBISA/libpcsclite.so";
52    private final static String LIB2 = "/usr/local/$LIBISA/libpcsclite.so";
53    private final static String PCSC_FRAMEWORK = "/System/Library/Frameworks/PCSC.framework/Versions/Current/PCSC";
54
55    PlatformPCSC() {
56        // empty
57    }
58
59    static {
60        initException = AccessController.doPrivileged(new PrivilegedAction<Throwable>() {
61            public Throwable run() {
62                try {
63                    System.loadLibrary("j2pcsc");
64                    String library = getLibraryName();
65                    if (debug != null) {
66                        debug.println("Using PC/SC library: " + library);
67                    }
68                    initialize(library);
69                    return null;
70                } catch (Throwable e) {
71                    return e;
72                }
73            }
74        });
75    }
76
77    // expand $LIBISA to the system specific directory name for libraries
78    private static String expand(String lib) {
79        int k = lib.indexOf("$LIBISA");
80        if (k == -1) {
81            return lib;
82        }
83        String s1 = lib.substring(0, k);
84        String s2 = lib.substring(k + 7);
85        String libDir;
86        if ("64".equals(System.getProperty("sun.arch.data.model"))) {
87            if ("SunOS".equals(System.getProperty("os.name"))) {
88                libDir = "lib/64";
89            } else {
90                // assume Linux convention
91                libDir = "lib64";
92            }
93        } else {
94            // must be 32-bit
95            libDir = "lib";
96        }
97        String s = s1 + libDir + s2;
98        return s;
99    }
100
101    private static String getLibraryName() throws IOException {
102        // if system property is set, use that library
103        String lib = expand(System.getProperty(PROP_NAME, "").trim());
104        if (lib.length() != 0) {
105            return lib;
106        }
107        lib = expand(LIB1);
108        if (new File(lib).isFile()) {
109            // if LIB1 exists, use that
110            return lib;
111        }
112        lib = expand(LIB2);
113        if (new File(lib).isFile()) {
114            // if LIB2 exists, use that
115            return lib;
116        }
117        lib = PCSC_FRAMEWORK;
118        if (new File(lib).isFile()) {
119            // if PCSC.framework exists, use that
120            return lib;
121        }
122        throw new IOException("No PC/SC library found on this system");
123    }
124
125    private static native void initialize(String libraryName);
126
127    // PCSC constants defined differently under Windows and MUSCLE
128    // MUSCLE version
129    final static int SCARD_PROTOCOL_T0     =  0x0001;
130    final static int SCARD_PROTOCOL_T1     =  0x0002;
131    final static int SCARD_PROTOCOL_RAW    =  0x0004;
132
133    final static int SCARD_UNKNOWN         =  0x0001;
134    final static int SCARD_ABSENT          =  0x0002;
135    final static int SCARD_PRESENT         =  0x0004;
136    final static int SCARD_SWALLOWED       =  0x0008;
137    final static int SCARD_POWERED         =  0x0010;
138    final static int SCARD_NEGOTIABLE      =  0x0020;
139    final static int SCARD_SPECIFIC        =  0x0040;
140
141}
142