1 /*
2 * Copyright (c) 2005, 2014, 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
26 #include <stdio.h>
27 #include <stdlib.h>
28 #include <string.h>
29
30 #include <dlfcn.h>
31
32 #include <jni_util.h>
33
34 #include "j2secmod.h"
35 #include "wrapper/pkcs11wrapper.h"
36
findFunction(JNIEnv * env,jlong jHandle,const char * functionName)37 void *findFunction(JNIEnv *env, jlong jHandle, const char *functionName) {
38 void *hModule = (void*)jlong_to_ptr(jHandle);
39 void *fAddress = dlsym(hModule, functionName);
40 if (fAddress == NULL) {
41 char errorMessage[256];
42 snprintf(errorMessage, sizeof(errorMessage), "Symbol not found: %s", functionName);
43 throwNullPointerException(env, errorMessage);
44 return NULL;
45 }
46 return fAddress;
47 }
48
Java_sun_security_pkcs11_Secmod_nssGetLibraryHandle(JNIEnv * env,jclass thisClass,jstring jLibName)49 JNIEXPORT jlong JNICALL Java_sun_security_pkcs11_Secmod_nssGetLibraryHandle
50 (JNIEnv *env, jclass thisClass, jstring jLibName)
51 {
52 const char *libName = (*env)->GetStringUTFChars(env, jLibName, NULL);
53 if (libName == NULL) {
54 return 0L;
55 }
56
57 // look up existing handle only, do not load
58 #if defined(AIX) || !defined(RTLD_NOLOAD)
59 void *hModule = dlopen(libName, RTLD_LAZY);
60 #else
61 void *hModule = dlopen(libName, RTLD_NOLOAD);
62 #endif
63 dprintf2("-handle for %s: %u\n", libName, hModule);
64 (*env)->ReleaseStringUTFChars(env, jLibName, libName);
65 return ptr_to_jlong(hModule);
66 }
67
Java_sun_security_pkcs11_Secmod_nssLoadLibrary(JNIEnv * env,jclass thisClass,jstring jLibName)68 JNIEXPORT jlong JNICALL Java_sun_security_pkcs11_Secmod_nssLoadLibrary
69 (JNIEnv *env, jclass thisClass, jstring jLibName)
70 {
71 void *hModule;
72 const char *libName = (*env)->GetStringUTFChars(env, jLibName, NULL);
73 if (libName == NULL) {
74 return 0L;
75 }
76
77 dprintf1("-lib %s\n", libName);
78 hModule = dlopen(libName, RTLD_LAZY);
79 (*env)->ReleaseStringUTFChars(env, jLibName, libName);
80 dprintf2("-handle: %u (0X%X)\n", hModule, hModule);
81
82 if (hModule == NULL) {
83 throwIOException(env, dlerror());
84 return 0;
85 }
86
87 return ptr_to_jlong(hModule);
88 }
89