Merge pull request #298 from AFLplusplus/snapshot

Snapshot for LLVM mode in dev

1 files changed, 59 insertions, 0 deletions

diff --git a/include/snapshot-inl.h b/include/snapshot-inl.h
new file mode 100644
index 00000000..b73a001e
--- /dev/null
+++ b/include/snapshot-inl.h
@@ -0,0 +1,59 @@
+/*
+   american fuzzy lop++ - snapshot helpers routines
+   ------------------------------------------------
+
+   Originally written by Michal Zalewski
+
+   Forkserver design by Jann Horn <jannhorn@googlemail.com>
+
+   Now maintained by Marc Heuse <mh@mh-sec.de>,
+                     Heiko Eißfeldt <heiko.eissfeldt@hexco.de>,
+                     Andrea Fioraldi <andreafioraldi@gmail.com>,
+                     Dominik Maier <mail@dmnk.co>
+
+   Copyright 2016, 2017 Google Inc. All rights reserved.
+   Copyright 2019-2020 AFLplusplus Project. All rights reserved.
+
+   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
+
+ */
+
+// From AFL-Snapshot-LKM/include/afl_snapshot.h (must be kept synced)
+
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#define AFL_SNAPSHOT_FILE_NAME "/dev/afl_snapshot"
+
+#define AFL_SNAPSHOT_IOCTL_MAGIC 44313
+
+#define AFL_SNAPSHOT_IOCTL_DO _IO(AFL_SNAPSHOT_IOCTL_MAGIC, 1)
+#define AFL_SNAPSHOT_IOCTL_CLEAN _IO(AFL_SNAPSHOT_IOCTL_MAGIC, 2)
+
+static int afl_snapshot_dev_fd;
+
+static int afl_snapshot_init(void) {
+
+  afl_snapshot_dev_fd = open(AFL_SNAPSHOT_FILE_NAME, 0);
+  return afl_snapshot_dev_fd;
+
+}
+
+static int afl_snapshot_do() {
+
+  return ioctl(afl_snapshot_dev_fd, AFL_SNAPSHOT_IOCTL_DO);
+
+}
+
+static int afl_snapshot_clean(void) {
+
+  return ioctl(afl_snapshot_dev_fd, AFL_SNAPSHOT_IOCTL_CLEAN);
+
+}
+