boringssl/fuzz/client.cc
David Benjamin 88536c3cb1 Start fuzzing the TLS 1.3 code.
Corpus recorded from runner and merged into existing corpus with
libFuzzer's -merge flag.

BUG=79

Change-Id: I986a50976ffef141b63e31de3a81fdb4ed5c1348
Reviewed-on: https://boringssl-review.googlesource.com/11130
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
2016-09-21 20:47:15 +00:00

57 lines
1.6 KiB
C++

/* Copyright (c) 2016, 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 <assert.h>
#include <openssl/rand.h>
#include <openssl/ssl.h>
struct GlobalState {
GlobalState() : ctx(SSL_CTX_new(SSLv23_method())) {}
~GlobalState() {
SSL_CTX_free(ctx);
}
SSL_CTX *const ctx;
};
static GlobalState g_state;
extern "C" int LLVMFuzzerTestOneInput(uint8_t *buf, size_t len) {
RAND_reset_for_fuzzing();
SSL *client = SSL_new(g_state.ctx);
BIO *in = BIO_new(BIO_s_mem());
BIO *out = BIO_new(BIO_s_mem());
SSL_set_bio(client, in, out);
SSL_set_connect_state(client);
SSL_set_renegotiate_mode(client, ssl_renegotiate_freely);
SSL_set_max_version(client, TLS1_3_VERSION);
BIO_write(in, buf, 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);
return 0;
}