WIP: Maven -> Gradle

.github/workflows/gradle-wrapper-validation.yml

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+name: "Validate Gradle Wrapper"
+on: [push, pull_request]
+
+jobs:
+  validation:
+    name: "Validation"
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: gradle/wrapper-validation-action@v1

.github/workflows/main.yml

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+# The default workflow for GitHub Actions that is used for continuous
+# integration. A configuration file that is used to control when, where,
+# and how different CI jobs are executed.
+# For more information on how to modify this file check the following link:
+# https://help.github.com/en/actions/automating-your-workflow-with-github-actions
+
+name: CI
+
+on:
+  push:
+    branches:
+      - '*'
+  pull_request:
+    branches:
+      - '*'
+
+jobs:
+  linux-java8:
+    name: 'Linux (JDK 8)'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 50
+      - name: 'Set up JDK 8'
+        uses: actions/setup-java@v1
+        with:
+          java-version: 8
+      - name: 'Test'
+        run: |
+          ./gradlew --no-parallel --no-daemon build javadoc
+
+  mac:
+    name: 'macOS (JDK 13)'
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 50
+      - name: 'Set up JDK 13'
+        uses: actions/setup-java@v1
+        with:
+          java-version: 13
+      - name: 'Test'
+        run: |
+          ./gradlew --no-parallel --no-daemon build javadoc
+
+  linux-java11:
+    name: 'Linux (JDK 11)'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 50
+      - name: 'Set up JDK 11'
+        uses: actions/setup-java@v1
+        with:
+          java-version: 11
+      - name: 'Test'
+        run: |
+          ./gradlew --no-parallel --no-daemon build javadoc
+
+  windows:
+    name: 'Windows (JDK 8)'
+    runs-on: windows-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 50
+      - name: 'Set up JDK 8'
+        uses: actions/setup-java@v1
+        with:
+          java-version: 8
+      - name: 'Test'
+        shell: cmd
+        run: |
+          ./gradlew --no-parallel --no-daemon build javadoc
+

.gitignore

@@ -1,6 +1,11 @@
 .DS_Store
-build/
-target/
+/.gradle
+/build/
+/target/
+/out/
+/*/build/
+/*/target/
+/*/out/
 *.iml
 *.pyc
 .cache/

afl-proxy/build.gradle.kts

@@ -0,0 +1,3 @@
+plugins {
+    `cpp-application`
+}

afl-proxy/src/main/cpp/afl-proxy.cpp

@@ -0,0 +1,262 @@
+/*
+ * Copyright (c) 2017, University of California, Berkeley
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <sys/shm.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <fcntl.h>
+
+#include "afl-proxy.h"
+
+#define PID_MAX_LIMIT (1 << 22)  // Portable upper-bound for value defined in linux/threads.h
+
+/* 
+* Proxy between AFL and JQF. Communicates to 
+* both via pipes -- those launched by AFL and two whose names
+* are given as command line args and must be created before 
+* launching the proxy. 
+*
+* This proxy is general and can be used to exchange information
+* from any external utility writing in the command-line pipes.
+*
+* author: Caroline Lemieux
+* author: Rohan Padhye
+*/
+
+// whether to share an extra map of PERF_SIZE after the trace bits
+// (this is unused when compiling with stock AFL)
+int use_perf_map = 0;
+
+// whether to log non-fatal (exit(1) causing messages)
+// set to != 0 for debugging
+int log_non_fatal = 1;
+
+/* 
+* Log proxy's progress for debugging. 
+* to_exit: whether to exit(1) after logging
+* log_file_name: name of file in which to log
+* fmt... : format string parameters
+*/
+void log_to_file(int to_exit, char* log_file_name, char const *fmt, ...) { 
+
+
+    /* If no log file name was provided, do not log */
+    if (log_file_name == NULL){
+      if (to_exit) exit(1);
+      else return;
+    } 
+    /* if it's not an exit message and we don't log
+       non-fatal, do not log */
+    if (!to_exit & !log_non_fatal){
+      return;
+    }
+
+    /* Open the log file for logging if it is not yet open */
+    static FILE * log_file = NULL;
+    if (log_file == NULL) {
+      log_file = fopen(log_file_name, "w");
+       if (log_file == NULL) {
+        printf("Couldn't open log file, %s\n", log_file_name);
+        exit(1);
+      }
+    }
+
+    /* print to log file */
+    va_list ap;
+    va_start(ap, fmt);
+    vfprintf(log_file, fmt, ap);
+    va_end(ap);
+
+    /* flush to log file since this program might terminate strangely */
+    fflush(log_file);
+
+    /* exit if the exit parameter is given */
+    if (to_exit) {
+      fclose(log_file);
+      exit(1);
+    }
+
+}
+
+/* main proxy driver. communication channel between a running instance
+   of AFL and Java */
+int main(int argc, char** argv) {
+
+  /* usage */
+  if (argc < 3 || argc > 4){
+    printf("usage: %s afltojavafifo javatoaflfifo [logfile]", argv[0]);
+    exit(1);
+  }
+
+  /* collect file names from arguments */ 
+  char * to_java_str = argv[1];
+  char * from_java_str = argv[2];
+  char * log_file_name = NULL;
+  if (argc == 4) log_file_name = argv[3];
+
+  /* set up buffers */
+  u8 helo[4] = {'H', 'E', 'L', 'O'}; // to set up connections
+  uint32_t status = 0; // to receive + send status from java
+  u8 buf[4]; // to receive signals from AFL
+  u32 child_pid = PID_MAX_LIMIT + 1; // A PID that can never exist in practice
+
+  /* Run once? Used by afl-showmap and perhaps other tools to avoid looping. */
+  bool run_once = false;
+
+  /* temp variable to store communicated bytes */
+  int comm_bytes;
+
+#ifdef PERF_SIZE
+  /* decide if perf_bits have to be shared */
+  if (getenv("JQF_PERF_MAP") != NULL) {
+    use_perf_map = 1;
+  }
+#endif  
+
+  /* set up FIFOs to talk to Java */
+  FILE * to_java_fd = fopen(to_java_str, "w");
+  if (to_java_fd == NULL){
+    log_to_file(1, log_file_name, "Failed to open to java fifo %s\n", to_java_str);
+  }
+
+  log_to_file(0, log_file_name, "opened to java fifo %s\n", to_java_str);
+
+  FILE * from_java_fd = fopen(from_java_str, "r");
+  if (from_java_fd == NULL){
+    log_to_file(1, log_file_name, "Failed to open from java fifo %s\n", from_java_str);
+  }
+
+  log_to_file(0, log_file_name, "opened from java fifo %s\n", from_java_str);
+
+  /* set up the trace bits */
+  char * shm_str = getenv(SHM_ENV_VAR);
+  if (shm_str == NULL){
+    log_to_file(1, log_file_name, 
+      "Error getting the address of trace_bits from env var %s\n", shm_str);
+  }
+  int shm_id = atoi(shm_str);
+  u8* trace_bits = (u8*) shmat(shm_id, NULL, 0);
+  if (trace_bits == NULL){
+    log_to_file(1, log_file_name, "Error shmat()ing trace_bits from id %d\n", shm_id);
+  }
+
+  /* perf map is right after coverage bit map (unused with stock AFL) */
+  u32* perf_bits = (u32*) &trace_bits[MAP_SIZE];
+
+  /* say the first hello to AFL. use write() because we
+     have an int file descriptor */
+  if (write(FORKSRV_FD + 1, (void*) &helo, 4) < 4) {
+    log_to_file(0, log_file_name, "Error saying initial hello to AFL\n");
+    run_once = true;
+  } else {
+    log_to_file(0, log_file_name, "Said hello to AFL (init).\n");
+  }
+
+  /* main fuzzing loop. AFL sends ready signals through  
+     pipe with file descriptor FORKSRV_FD */
+  while (run_once || read(FORKSRV_FD,(void *)&buf, 4) == 4){
+
+    if (!run_once) {
+      /* this sends "child pid" to AFL -- we use an impossible PID
+       * that AFL cannot kill even in the presence of timeouts. */
+      if ((comm_bytes = write(FORKSRV_FD+1, &child_pid, 4)) < 4) {
+        log_to_file(1, log_file_name, 
+          "Something went wrong saying hello to AFL in loop: wrote %d bytes.\n", comm_bytes);
+      }
+      log_to_file(0, log_file_name, "Said hello to AFL (in loop).\n");
+    }
+
+    /* Say hello to Java */
+    if ((comm_bytes = fwrite(&helo, 1, 4, to_java_fd)) < 4) {
+      log_to_file(1, log_file_name, 
+        "Something went wrong saying hello to Java: wrote %d bytes.\n", comm_bytes);
+    } 
+    /* need to flush the buffer */
+    fflush(to_java_fd);
+
+    log_to_file(0, log_file_name, "Said hello to Java.\n");
+
+    /* Get return code from Java */
+    if ((comm_bytes = fread((void *) &status, 1 , 4, from_java_fd)) < 4) {
+      log_to_file(1, log_file_name, 
+        "Something went wrong getting return status from Java: read %d bytes.\n", comm_bytes);
+    }
+
+    log_to_file(0, log_file_name, "Got return status from Java.\n");
+
+    /* Get trace bits from Java */
+    if ((comm_bytes = fread( trace_bits, 1, MAP_SIZE, from_java_fd)) < MAP_SIZE) {
+      log_to_file(1, log_file_name, 
+        "Something went wrong getting trace_bits from Java: read %d bytes.\n", comm_bytes);
+    }
+
+    log_to_file(0, log_file_name, "Got trace bits from java.\n");
+
+#ifdef PERF_SIZE
+    if (use_perf_map) {
+      /* Get perf bits from Java */
+      if ((comm_bytes = fread( perf_bits, 4, PERF_SIZE, from_java_fd)) < PERF_SIZE) {
+        log_to_file(1, log_file_name, 
+          "Something went wrong getting perf_bits from Java: read %d bytes.\n", comm_bytes);
+      }
+
+      log_to_file(0, log_file_name, "Got perf bits from java.\n");
+    }
+#endif
+
+    if (!run_once) {
+      /* Tell AFL we got the return */
+      if((comm_bytes = write(FORKSRV_FD + 1, &status, 4)) < 4) {
+        log_to_file(1, log_file_name, 
+          "Something went wrong sending return status to AFL: wrote %d bytes.\n", comm_bytes);
+      }
+
+      log_to_file(0, log_file_name, "sent return status to AFL.\n");
+    } else {
+      break; // run_once
+    }
+  }
+
+  /* teardown. Will probably never be called */
+  if (fclose(to_java_fd) != 0) { 
+    log_to_file(1, log_file_name, 
+        "Something went wrong closing pipe to Java.\n");
+  }
+  if (fclose(from_java_fd) != 0) { 
+    log_to_file(1, log_file_name, 
+        "Something went wrong closing pipe from Java.\n");
+  }
+  exit(status);
+
+}

afl-proxy/src/main/headers/afl-proxy.h

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+#ifndef PROXY_H
+#define PROXY_H
+
+/*
+ Collection of definitions taken
+ from AFL's config.h and types.h.
+
+ These definitions are duplicated here so
+ that JQF would not need to depend on AFL
+ being locally installed with header files, et al.
+*/
+
+#include <stdint.h>
+#include <stdlib.h>
+
+typedef uint8_t  u8;
+typedef uint16_t u16;
+typedef uint32_t u32;
+
+#define MAP_SIZE  (1 << 16)
+#define PERF_SIZE (1 << 14)
+
+#define SHM_ENV_VAR    "__AFL_SHM_ID"
+#define FORKSRV_FD      198
+
+#endif // PROXY_H