[javassist] Initial Integration (#7619)

projects/javassist/ClassFuzzer.java

@@ -0,0 +1,55 @@
+// Copyright 2022 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+////////////////////////////////////////////////////////////////////////////////
+
+import com.code_intelligence.jazzer.api.FuzzedDataProvider;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.lang.RuntimeException;
+
+import javassist.ClassPool;
+import javassist.CtClass;
+import javassist.CannotCompileException;
+import javassist.NotFoundException;
+import java.lang.NullPointerException;
+
+
+public class ClassFuzzer {
+    public static void fuzzerTestOneInput(FuzzedDataProvider data) {
+        ClassPool pool = ClassPool.getDefault();
+        CtClass cc = null;
+        
+        try {
+            cc = pool.makeClass(new ByteArrayInputStream(data.consumeRemainingAsBytes()));
+        } catch (IOException | RuntimeException e) {
+        }
+
+        try {
+            cc.getSuperclass();
+            cc.getNestedClasses();
+            cc.getClassFile();
+            cc.getInterfaces();
+            cc.getDeclaringClass();
+            cc.getComponentType();
+        } catch (NotFoundException | NullPointerException e) {
+        }
+
+        try {
+            cc.toBytecode();
+        } catch (IOException | NullPointerException | CannotCompileException e) {
+        }
+    }
+}

projects/javassist/Dockerfile

@@ -0,0 +1,29 @@
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+FROM gcr.io/oss-fuzz-base/base-builder-jvm
+
+RUN curl -L https://downloads.apache.org/maven/maven-3/3.6.3/binaries/apache-maven-3.6.3-bin.zip -o maven.zip && \
+    unzip maven.zip -d $SRC/maven && \
+    rm -rf maven.zip
+
+ENV MVN $SRC/maven/apache-maven-3.6.3/bin/mvn
+
+RUN git clone --depth 1 https://github.com/jboss-javassist/javassist.git
+
+COPY build.sh $SRC/
+COPY ClassFuzzer.java $SRC/
+WORKDIR $SRC/javassist

projects/javassist/build.sh

@@ -0,0 +1,51 @@
+#!/bin/bash -eu
+# Copyright 2022 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+
+MAVEN_ARGS="-Djavac.src.version=15 -Djavac.target.version=15 -DskipTests"
+$MVN package org.apache.maven.plugins:maven-shade-plugin:3.2.4:shade $MAVEN_ARGS
+CURRENT_VERSION=$($MVN org.apache.maven.plugins:maven-help-plugin:3.2.0:evaluate \
+ -Dexpression=project.version -q -DforceStdout)
+cp "target/javassist-$CURRENT_VERSION.jar" $OUT/javassist.jar
+
+ALL_JARS="javassist.jar"
+
+# The classpath at build-time includes the project jars in $OUT as well as the
+# Jazzer API. 
+BUILD_CLASSPATH=$(echo $ALL_JARS | xargs printf -- "$OUT/%s:"):$JAZZER_API_PATH
+
+# All .jar and .class files lie in the same directory as the fuzzer at runtime.
+RUNTIME_CLASSPATH=$(echo $ALL_JARS | xargs printf -- "\$this_dir/%s:"):\$this_dir
+
+for fuzzer in $(find $SRC -name '*Fuzzer.java'); do
+  fuzzer_basename=$(basename -s .java $fuzzer)
+  javac -cp $BUILD_CLASSPATH $fuzzer
+  cp $SRC/$fuzzer_basename.class $OUT/
+
+
+  # Create an execution wrapper that executes Jazzer with the correct arguments.
+  echo "#!/bin/sh
+# LLVMFuzzerTestOneInput for fuzzer detection.
+this_dir=\$(dirname \"\$0\")
+LD_LIBRARY_PATH=\"$JVM_LD_LIBRARY_PATH\":\$this_dir \
+\$this_dir/jazzer_driver --agent_path=\$this_dir/jazzer_agent_deploy.jar \
+--cp=$RUNTIME_CLASSPATH \
+--target_class=$fuzzer_basename \
+--jvm_args=\"-Xmx2048m\" \
+\$@" > $OUT/$fuzzer_basename
+  chmod u+x $OUT/$fuzzer_basename
+done

projects/javassist/project.yaml

@@ -0,0 +1,12 @@
+homepage: "http://www.javassist.org/"
+language: jvm
+primary_contact: "wagner@code-intelligence.com"
+auto_ccs:
+  - "wagner@code-intelligence.com"
+  - "yakdan@code-intelligence.com"
+  - "glendowne@code-intelligence.com"
+fuzzing_engines:
+  - libfuzzer
+main_repo: "https://github.com/jboss-javassist/javassist"
+sanitizers:
+  - address