1 files changed, 52 insertions, 0 deletions
diff --git a/deps/boringssl/src/fuzz/decode_client_hello_inner.cc b/deps/boringssl/src/fuzz/decode_client_hello_inner.cc
new file mode 100644
index 0000000..db090c5
--- /dev/null
+++ b/deps/boringssl/src/fuzz/decode_client_hello_inner.cc
@@ -0,0 +1,52 @@
+/* Copyright (c) 2021, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include <openssl/bytestring.h>
+#include <openssl/ssl.h>
+#include <openssl/span.h>
+
+#include "../ssl/internal.h"
+
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t *buf, size_t len) {
+  static bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(TLS_method()));
+  static bssl::UniquePtr<SSL> ssl(SSL_new(ctx.get()));
+
+  CBS reader(bssl::MakeConstSpan(buf, len));
+  CBS encoded_client_hello_inner_cbs;
+
+  if (!CBS_get_u24_length_prefixed(&reader, &encoded_client_hello_inner_cbs)) {
+    return 0;
+  }
+
+  bssl::Array<uint8_t> encoded_client_hello_inner;
+  if (!encoded_client_hello_inner.CopyFrom(encoded_client_hello_inner_cbs)) {
+    return 0;
+  }
+
+  // Use the remaining bytes in |reader| as the ClientHelloOuter.
+  SSL_CLIENT_HELLO client_hello_outer;
+  if (!bssl::ssl_client_hello_init(ssl.get(), &client_hello_outer, reader)) {
+    return 0;
+  }
+
+  // Recover the ClientHelloInner from the EncodedClientHelloInner and
+  // ClientHelloOuter.
+  uint8_t alert_unused;
+  bssl::Array<uint8_t> client_hello_inner;
+  bssl::ssl_decode_client_hello_inner(
+      ssl.get(), &alert_unused, &client_hello_inner, encoded_client_hello_inner,
+      &client_hello_outer);
+  return 0;
+}