2 * Copyright 2016-2018 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL licenses, (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 * https://www.openssl.org/source/license.html
8 * or in the file LICENSE in the source distribution.
12 #include <openssl/rand.h>
13 #include <openssl/ssl.h>
14 #include <openssl/rsa.h>
15 #include <openssl/dsa.h>
16 #include <openssl/ec.h>
17 #include <openssl/dh.h>
18 #include <openssl/err.h>
23 /* unused, to avoid warning. */
26 #define FUZZTIME 1485898104
28 #define TIME_IMPL(t) { if (t != NULL) *t = FUZZTIME; return FUZZTIME; }
31 * This might not work in all cases (and definitely not on Windows
32 * because of the way linkers are) and callees can still get the
33 * current time instead of the fixed time. This will just result
34 * in things not being fully reproducible and have a slightly
38 time_t time(time_t *t) TIME_IMPL(t)
41 int FuzzerInitialize(int *argc, char ***argv)
43 STACK_OF(SSL_COMP) *comp_methods;
45 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS | OPENSSL_INIT_ASYNC, NULL);
46 OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL);
48 CRYPTO_free_ex_index(0, -1);
49 idx = SSL_get_ex_data_X509_STORE_CTX_idx();
51 comp_methods = SSL_COMP_get_compression_methods();
52 if (comp_methods != NULL)
53 sk_SSL_COMP_sort(comp_methods);
58 int FuzzerTestOneInput(const uint8_t *buf, size_t len)
69 * TODO: use the ossltest engine (optionally?) to disable crypto checks.
72 /* This only fuzzes the initial flow from the client so far. */
73 ctx = SSL_CTX_new(SSLv23_method());
75 client = SSL_new(ctx);
76 OPENSSL_assert(SSL_set_min_proto_version(client, 0) == 1);
77 OPENSSL_assert(SSL_set_cipher_list(client, "ALL:eNULL:@SECLEVEL=0") == 1);
78 SSL_set_tlsext_host_name(client, "localhost");
79 in = BIO_new(BIO_s_mem());
80 out = BIO_new(BIO_s_mem());
81 SSL_set_bio(client, in, out);
82 SSL_set_connect_state(client);
83 OPENSSL_assert((size_t)BIO_write(in, buf, len) == len);
84 if (SSL_do_handshake(client) == 1) {
85 /* Keep reading application data until error or EOF. */
88 if (SSL_read(client, tmp, sizeof(tmp)) <= 0) {
100 void FuzzerCleanup(void)