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/*
* Copyright 2022 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 can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <string.h>
#include <openssl/evp.h>
#include <openssl/bio.h>
#include <openssl/rand.h>
#include <openssl/comp.h>
#include "testutil.h"
#include "testutil/output.h"
#include "testutil/tu_local.h"
#define COMPRESS 1
#define EXPAND 0
#define BUFFER_SIZE 32 * 1024
#define NUM_SIZES 4
static int sizes[NUM_SIZES] = { 64, 512, 2048, 16 * 1024 };
/* using global buffers */
static unsigned char *original = NULL;
static unsigned char *result = NULL;
/*
* For compression:
* the write operation compresses
* the read operation decompresses
*/
static int do_bio_comp_test(const BIO_METHOD *meth, size_t size)
{
BIO *bcomp = NULL;
BIO *bmem = NULL;
BIO *bexp = NULL;
int osize;
int rsize;
int ret = 0;
/* Compress */
if (!TEST_ptr(meth))
goto err;
if (!TEST_ptr(bcomp = BIO_new(meth)))
goto err;
if (!TEST_ptr(bmem = BIO_new(BIO_s_mem())))
goto err;
BIO_push(bcomp, bmem);
osize = BIO_write(bcomp, original, size);
if (!TEST_int_eq(osize, size)
|| !TEST_true(BIO_flush(bcomp)))
goto err;
BIO_free(bcomp);
bcomp = NULL;
/* decompress */
if (!TEST_ptr(bexp = BIO_new(meth)))
goto err;
BIO_push(bexp, bmem);
rsize = BIO_read(bexp, result, size);
if (!TEST_int_eq(size, rsize)
|| !TEST_mem_eq(original, osize, result, rsize))
goto err;
ret = 1;
err:
BIO_free(bexp);
BIO_free(bcomp);
BIO_free(bmem);
return ret;
}
static int do_bio_comp(const BIO_METHOD *meth, int n)
{
int i;
int success = 0;
int size = sizes[n % 4];
int type = n / 4;
if (!TEST_ptr(original = OPENSSL_malloc(BUFFER_SIZE))
|| !TEST_ptr(result = OPENSSL_malloc(BUFFER_SIZE)))
goto err;
switch (type) {
case 0:
TEST_info("zeros of size %d\n", size);
memset(original, 0, BUFFER_SIZE);
break;
case 1:
TEST_info("ones of size %d\n", size);
memset(original, 1, BUFFER_SIZE);
break;
case 2:
TEST_info("sequential of size %d\n", size);
for (i = 0; i < BUFFER_SIZE; i++)
original[i] = i & 0xFF;
break;
case 3:
TEST_info("random of size %d\n", size);
if (!TEST_int_gt(RAND_bytes(original, BUFFER_SIZE), 0))
goto err;
break;
default:
goto err;
}
if (!TEST_true(do_bio_comp_test(meth, size)))
goto err;
success = 1;
err:
OPENSSL_free(original);
OPENSSL_free(result);
return success;
}
#ifndef OPENSSL_NO_ZSTD
static int test_zstd(int n)
{
return do_bio_comp(BIO_f_zstd(), n);
}
#endif
#ifndef OPENSSL_NO_BROTLI
static int test_brotli(int n)
{
return do_bio_comp(BIO_f_brotli(), n);
}
#endif
#ifndef OPENSSL_NO_ZLIB
static int test_zlib(int n)
{
return do_bio_comp(BIO_f_zlib(), n);
}
#endif
int setup_tests(void)
{
#ifndef OPENSSL_NO_ZLIB
ADD_ALL_TESTS(test_zlib, NUM_SIZES * 4);
#endif
#ifndef OPENSSL_NO_BROTLI
ADD_ALL_TESTS(test_brotli, NUM_SIZES * 4);
#endif
#ifndef OPENSSL_NO_ZSTD
ADD_ALL_TESTS(test_zstd, NUM_SIZES * 4);
#endif
return 1;
}
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