/*
* Algorithm testing framework and tests.
*
* Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
* Copyright (c) 2002 Jean-Francois Dive <jef@linuxbe.org>
* Copyright (c) 2007 Nokia Siemens Networks
* Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
*
* Updated RFC4106 AES-GCM testing.
* Authors: Aidan O'Mahony (aidan.o.mahony@intel.com)
* Adrian Hoban <adrian.hoban@intel.com>
* Gabriele Paoloni <gabriele.paoloni@intel.com>
* Tadeusz Struk (tadeusz.struk@intel.com)
* Copyright (c) 2010, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
*/
#include <crypto/aead.h>
#include <crypto/hash.h>
#include <crypto/skcipher.h>
#include <linux/err.h>
#include <linux/fips.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <crypto/rng.h>
#include <crypto/drbg.h>
#include <crypto/akcipher.h>
#include <crypto/kpp.h>
#include <crypto/acompress.h>
#include "internal.h"
static bool notests;
module_param(notests, bool, 0644);
MODULE_PARM_DESC(notests, "disable crypto self-tests");
#ifdef CONFIG_CRYPTO_MANAGER_DISABLE_TESTS
/* a perfect nop */
int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
{
return 0;
}
#else
#include "testmgr.h"
/*
* Need slab memory for testing (size in number of pages).
*/
#define XBUFSIZE 8
/*
* Indexes into the xbuf to simulate cross-page access.
*/
#define IDX1 32
#define IDX2 32400
#define IDX3 1511
#define IDX4 8193
#define IDX5 22222
#define IDX6 17101
#define IDX7 27333
#define IDX8 3000
/*
* Used by test_cipher()
*/
#define ENCRYPT 1
#define DECRYPT 0
struct aead_test_suite {
struct {
const struct aead_testvec *vecs;
unsigned int count;
} enc, dec;
};
struct cipher_test_suite {
const struct cipher_testvec *vecs;
unsigned int count;
};
struct comp_test_suite {
struct {
const struct comp_testvec *vecs;
unsigned int count;
} comp, decomp;
};
struct hash_test_suite {
const struct hash_testvec *vecs;
unsigned int count;
};
struct cprng_test_suite {
const struct cprng_testvec *vecs;
unsigned int count;
};
struct drbg_test_suite {
const struct drbg_testvec *vecs;
unsigned int count;
};
struct akcipher_test_suite {
const struct akcipher_testvec *vecs;
unsigned int count;
};
struct kpp_test_suite {
const struct kpp_testvec *vecs;
unsigned int count;
};
struct alg_test_desc {
const char *alg;
int (*test)(const struct alg_test_desc *desc, const char *driver,
u32 type, u32 mask);
int fips_allowed; /* set if alg is allowed in fips mode */
union {
struct aead_test_suite aead;
struct cipher_test_suite cipher;
struct comp_test_suite comp;
struct hash_test_suite hash;
struct cprng_test_suite cprng;
struct drbg_test_suite drbg;
struct akcipher_test_suite akcipher;
struct kpp_test_suite kpp;
} suite;
};
static const unsigned int IDX[8] = {
IDX1, IDX2, IDX3, IDX4, IDX5, IDX6, IDX7, IDX8 };
static void hexdump(unsigned char *buf, unsigned int len)
{
print_hex_dump(KERN_CONT, "", DUMP_PREFIX_OFFSET,
16, 1,
buf, len, false);
}
static int testmgr_alloc_buf(char *buf[XBUFSIZE])
{
int i;
for (i = 0; i < XBUFSIZE; i++) {
buf[i] = (void *)__get_free_page(GFP_KERNEL);
if (!buf[i])
goto err_free_buf;
}
return 0;
err_free_buf:
while (i-- > 0)
free_page((unsigned long)buf[i]);
return -ENOMEM;
}
static void testmgr_free_buf(char *buf[XBUFSIZE])
{
int i;
for (i = 0; i < XBUFSIZE; i++)
free_page((unsigned long)buf[i]);
}
static int ahash_guard_result(char *result, char c, int size)
{
int i;
for (i = 0; i < size; i++) {
if (result[i] != c)
return -EINVAL;
}
return 0;
}
static int ahash_partial_update(struct ahash_request **preq,
struct crypto_ahash *tfm, const struct hash_testvec *template,
void *hash_buff, int k, int temp, struct scatterlist *sg,
const char *algo, char *result, struct crypto_wait *wait)
{
char *state;
struct ahash_request *req;
int statesize, ret = -EINVAL;
static const unsigned char guard[] = { 0x00, 0xba, 0xad, 0x00 };
int digestsize = crypto_ahash_digestsize(tfm);
req = *preq;
statesize = crypto_ahash_statesize(
crypto_ahash_reqtfm(req));
state = kmalloc(statesize + sizeof(guard), GFP_KERNEL);
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