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Use different exceptions and clean up.

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This commit is contained in:
Andy Nguyen 2021-10-25 09:19:52 +02:00
parent f202a5a495
commit a1ea409332
2 changed files with 10 additions and 12 deletions
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20
com/bdjb/API.java
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@ -28,18 +28,18 @@ final class API {
private static final String UNSUPPORTED_DLOPEN_OPERATION_STRING = private static final String UNSUPPORTED_DLOPEN_OPERATION_STRING =
"Unsupported dlopen() operation"; "Unsupported dlopen() operation";
private static final String SETJMP_SYMBOL = "setjmp";
private static final String UX86_64_SETCONTEXT_SYMBOL = "__Ux86_64_setcontext";
private static final String JVM_NATIVE_PATH_SYMBOL = "JVM_NativePath";
private static final String JAVA_JAVA_LANG_REFLECT_ARRAY_MULTI_NEW_ARRAY_SYMBOL = private static final String JAVA_JAVA_LANG_REFLECT_ARRAY_MULTI_NEW_ARRAY_SYMBOL =
"Java_java_lang_reflect_Array_multiNewArray"; "Java_java_lang_reflect_Array_multiNewArray";
private static final String JVM_NATIVE_PATH_SYMBOL = "JVM_NativePath";
private static final String SETJMP_SYMBOL = "setjmp";
private static final String UX86_64_SETCONTEXT_SYMBOL = "__Ux86_64_setcontext";
private static final String MULTI_NEW_ARRAY_METHOD_NAME = "multiNewArray"; private static final String MULTI_NEW_ARRAY_METHOD_NAME = "multiNewArray";
private static final String MULTI_NEW_ARRAY_METHOD_SIGNATURE = "(Ljava/lang/Class;[I)J"; private static final String MULTI_NEW_ARRAY_METHOD_SIGNATURE = "(Ljava/lang/Class;[I)J";
private static final String NATIVE_LIBRARY_CLASS_NAME = "java.lang.ClassLoader$NativeLibrary"; private static final String NATIVE_LIBRARY_CLASS_NAME = "java.lang.ClassLoader$NativeLibrary";
private static final String FIND_ENTRY_METHOD_NAME = "findEntry";
private static final String FIND_METHOD_NAME = "find"; private static final String FIND_METHOD_NAME = "find";
private static final String FIND_ENTRY_METHOD_NAME = "findEntry";
private static final String HANDLE_FIELD_NAME = "handle"; private static final String HANDLE_FIELD_NAME = "handle";
private static final int[] MULTI_NEW_ARRAY_DIMENSIONS = new int[] {1}; private static final int[] MULTI_NEW_ARRAY_DIMENSIONS = new int[] {1};
@ -62,8 +62,8 @@ final class API {
private long Java_java_lang_reflect_Array_multiNewArray; private long Java_java_lang_reflect_Array_multiNewArray;
private long JVM_NativePath; private long JVM_NativePath;
private long __Ux86_64_setcontext;
private long setjmp; private long setjmp;
private long __Ux86_64_setcontext;
private boolean jdk11; private boolean jdk11;
@ -126,7 +126,7 @@ final class API {
private void initSymbols() { private void initSymbols() {
JVM_NativePath = dlsym(RTLD_DEFAULT, JVM_NATIVE_PATH_SYMBOL); JVM_NativePath = dlsym(RTLD_DEFAULT, JVM_NATIVE_PATH_SYMBOL);
if (JVM_NativePath == 0) { if (JVM_NativePath == 0) {
throw new IllegalArgumentException("JVM_NativePath symbol could not be found."); throw new IllegalStateException("JVM_NativePath symbol could not be found.");
} }
__Ux86_64_setcontext = dlsym(LIBKERNEL_MODULE_HANDLE, UX86_64_SETCONTEXT_SYMBOL); __Ux86_64_setcontext = dlsym(LIBKERNEL_MODULE_HANDLE, UX86_64_SETCONTEXT_SYMBOL);
@ -144,7 +144,7 @@ final class API {
} }
if (__Ux86_64_setcontext == 0) { if (__Ux86_64_setcontext == 0) {
throw new IllegalArgumentException("__Ux86_64_setcontext symbol could not be found."); throw new IllegalStateException("__Ux86_64_setcontext symbol could not be found.");
} }
if (jdk11) { if (jdk11) {
@ -155,13 +155,13 @@ final class API {
dlsym(RTLD_DEFAULT, JAVA_JAVA_LANG_REFLECT_ARRAY_MULTI_NEW_ARRAY_SYMBOL); dlsym(RTLD_DEFAULT, JAVA_JAVA_LANG_REFLECT_ARRAY_MULTI_NEW_ARRAY_SYMBOL);
} }
if (Java_java_lang_reflect_Array_multiNewArray == 0) { if (Java_java_lang_reflect_Array_multiNewArray == 0) {
throw new IllegalArgumentException( throw new IllegalStateException(
"Java_java_lang_reflect_Array_multiNewArray symbol could not be found."); "Java_java_lang_reflect_Array_multiNewArray symbol could not be found.");
} }
setjmp = dlsym(LIBC_MODULE_HANDLE, SETJMP_SYMBOL); setjmp = dlsym(LIBC_MODULE_HANDLE, SETJMP_SYMBOL);
if (setjmp == 0) { if (setjmp == 0) {
throw new IllegalArgumentException("setjmp symbol could not be found."); throw new IllegalStateException("setjmp symbol could not be found.");
} }
} }
@ -217,7 +217,7 @@ final class API {
} }
} }
throw new IllegalArgumentException("Native method could not be installed."); throw new IllegalStateException("Native method could not be installed.");
} }
private void buildContext( private void buildContext(

2
com/bdjb/PayloadClassLoaderSerializer.java
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@ -7,9 +7,7 @@
package com.bdjb; package com.bdjb;
import java.io.FileInputStream;
import java.io.FileOutputStream; import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream; import java.io.ObjectOutputStream;
/** Simple util to create a serialized object of the PayloadClassLoader class. */ /** Simple util to create a serialized object of the PayloadClassLoader class. */