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/* 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;
}
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