mirror of
https://github.com/openssl/openssl.git
synced 2024-12-15 06:01:37 +08:00
de2ea978b5
Reviewed-by: Tim Hudson <tjh@openssl.org> (Merged from https://github.com/openssl/openssl/pull/13652)
102 lines
2.7 KiB
C
102 lines
2.7 KiB
C
/*
|
|
* Copyright 2016-2020 The OpenSSL Project Authors. All Rights Reserved.
|
|
*
|
|
* Licensed under the Apache License 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
|
|
* https://www.openssl.org/source/license.html
|
|
* or in the file LICENSE in the source distribution.
|
|
*/
|
|
|
|
#include <time.h>
|
|
#include <openssl/rand.h>
|
|
#include <openssl/ssl.h>
|
|
#include <openssl/rsa.h>
|
|
#include <openssl/dsa.h>
|
|
#include <openssl/ec.h>
|
|
#include <openssl/dh.h>
|
|
#include <openssl/err.h>
|
|
#include "fuzzer.h"
|
|
|
|
/* unused, to avoid warning. */
|
|
static int idx;
|
|
|
|
#define FUZZTIME 1485898104
|
|
|
|
#define TIME_IMPL(t) { if (t != NULL) *t = FUZZTIME; return FUZZTIME; }
|
|
|
|
/*
|
|
* This might not work in all cases (and definitely not on Windows
|
|
* because of the way linkers are) and callees can still get the
|
|
* current time instead of the fixed time. This will just result
|
|
* in things not being fully reproducible and have a slightly
|
|
* different coverage.
|
|
*/
|
|
#if !defined(_WIN32)
|
|
time_t time(time_t *t) TIME_IMPL(t)
|
|
#endif
|
|
|
|
int FuzzerInitialize(int *argc, char ***argv)
|
|
{
|
|
STACK_OF(SSL_COMP) *comp_methods;
|
|
|
|
FuzzerSetRand();
|
|
OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS | OPENSSL_INIT_ASYNC, NULL);
|
|
OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL);
|
|
ERR_clear_error();
|
|
CRYPTO_free_ex_index(0, -1);
|
|
idx = SSL_get_ex_data_X509_STORE_CTX_idx();
|
|
comp_methods = SSL_COMP_get_compression_methods();
|
|
if (comp_methods != NULL)
|
|
sk_SSL_COMP_sort(comp_methods);
|
|
|
|
return 1;
|
|
}
|
|
|
|
int FuzzerTestOneInput(const uint8_t *buf, size_t len)
|
|
{
|
|
SSL *client;
|
|
BIO *in;
|
|
BIO *out;
|
|
SSL_CTX *ctx;
|
|
|
|
if (len == 0)
|
|
return 0;
|
|
|
|
/*
|
|
* TODO: use the ossltest engine (optionally?) to disable crypto checks.
|
|
*/
|
|
|
|
/* This only fuzzes the initial flow from the client so far. */
|
|
ctx = SSL_CTX_new(SSLv23_method());
|
|
|
|
client = SSL_new(ctx);
|
|
OPENSSL_assert(SSL_set_min_proto_version(client, 0) == 1);
|
|
OPENSSL_assert(SSL_set_cipher_list(client, "ALL:eNULL:@SECLEVEL=0") == 1);
|
|
SSL_set_tlsext_host_name(client, "localhost");
|
|
in = BIO_new(BIO_s_mem());
|
|
out = BIO_new(BIO_s_mem());
|
|
SSL_set_bio(client, in, out);
|
|
SSL_set_connect_state(client);
|
|
OPENSSL_assert((size_t)BIO_write(in, buf, len) == len);
|
|
if (SSL_do_handshake(client) == 1) {
|
|
/* Keep reading application data until error or EOF. */
|
|
uint8_t tmp[1024];
|
|
for (;;) {
|
|
if (SSL_read(client, tmp, sizeof(tmp)) <= 0) {
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
SSL_free(client);
|
|
ERR_clear_error();
|
|
SSL_CTX_free(ctx);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void FuzzerCleanup(void)
|
|
{
|
|
FuzzerClearRand();
|
|
}
|