Linux 5.4.8

[linux/fpc-iii.git] / crypto / testmgr.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * 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>
 * Copyright (c) 2019 Google LLC
 *
 * 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.
 */

#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/once.h>
#include <linux/random.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 <crypto/internal/simd.h>

#include "internal.h"

static bool notests;
module_param(notests, bool, 0644);
MODULE_PARM_DESC(notests, "disable crypto self-tests");

static bool panic_on_fail;
module_param(panic_on_fail, bool, 0444);

#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
static bool noextratests;
module_param(noextratests, bool, 0644);
MODULE_PARM_DESC(noextratests, "disable expensive crypto self-tests");

static unsigned int fuzz_iterations = 100;
module_param(fuzz_iterations, uint, 0644);
MODULE_PARM_DESC(fuzz_iterations, "number of fuzz test iterations");

DEFINE_PER_CPU(bool, crypto_simd_disabled_for_test);
EXPORT_PER_CPU_SYMBOL_GPL(crypto_simd_disabled_for_test);
#endif

#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

/*
* Used by test_cipher()
*/
#define ENCRYPT 1
#define DECRYPT 0

struct aead_test_suite {
        const struct aead_testvec *vecs;
        unsigned int count;
};

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;
        const char *generic_driver;
        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 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 order)
{
        int i;

        for (i = 0; i < XBUFSIZE; i++) {
                buf[i] = (char *)__get_free_pages(GFP_KERNEL, order);
                if (!buf[i])
                        goto err_free_buf;
        }

        return 0;

err_free_buf:
        while (i-- > 0)
                free_pages((unsigned long)buf[i], order);

        return -ENOMEM;
}

static int testmgr_alloc_buf(char *buf[XBUFSIZE])
{
        return __testmgr_alloc_buf(buf, 0);
}

static void __testmgr_free_buf(char *buf[XBUFSIZE], int order)
{
        int i;

        for (i = 0; i < XBUFSIZE; i++)
                free_pages((unsigned long)buf[i], order);
}

static void testmgr_free_buf(char *buf[XBUFSIZE])
{
        __testmgr_free_buf(buf, 0);
}

#define TESTMGR_POISON_BYTE     0xfe
#define TESTMGR_POISON_LEN      16

static inline void testmgr_poison(void *addr, size_t len)
{
        memset(addr, TESTMGR_POISON_BYTE, len);
}

/* Is the memory region still fully poisoned? */
static inline bool testmgr_is_poison(const void *addr, size_t len)
{
        return memchr_inv(addr, TESTMGR_POISON_BYTE, len) == NULL;
}

/* flush type for hash algorithms */
enum flush_type {
        /* merge with update of previous buffer(s) */
        FLUSH_TYPE_NONE = 0,

        /* update with previous buffer(s) before doing this one */
        FLUSH_TYPE_FLUSH,

        /* likewise, but also export and re-import the intermediate state */
        FLUSH_TYPE_REIMPORT,
};

/* finalization function for hash algorithms */
enum finalization_type {
        FINALIZATION_TYPE_FINAL,        /* use final() */
        FINALIZATION_TYPE_FINUP,        /* use finup() */
        FINALIZATION_TYPE_DIGEST,       /* use digest() */
};

#define TEST_SG_TOTAL   10000

/**
 * struct test_sg_division - description of a scatterlist entry
 *
 * This struct describes one entry of a scatterlist being constructed to check a
 * crypto test vector.
 *
 * @proportion_of_total: length of this chunk relative to the total length,
 *                       given as a proportion out of TEST_SG_TOTAL so that it
 *                       scales to fit any test vector
 * @offset: byte offset into a 2-page buffer at which this chunk will start
 * @offset_relative_to_alignmask: if true, add the algorithm's alignmask to the
 *                                @offset
 * @flush_type: for hashes, whether an update() should be done now vs.
 *              continuing to accumulate data
 * @nosimd: if doing the pending update(), do it with SIMD disabled?
 */
struct test_sg_division {
        unsigned int proportion_of_total;
        unsigned int offset;
        bool offset_relative_to_alignmask;
        enum flush_type flush_type;
        bool nosimd;
};

/**
 * struct testvec_config - configuration for testing a crypto test vector
 *
 * This struct describes the data layout and other parameters with which each
 * crypto test vector can be tested.
 *
 * @name: name of this config, logged for debugging purposes if a test fails
 * @inplace: operate on the data in-place, if applicable for the algorithm type?
 * @req_flags: extra request_flags, e.g. CRYPTO_TFM_REQ_MAY_SLEEP
 * @src_divs: description of how to arrange the source scatterlist
 * @dst_divs: description of how to arrange the dst scatterlist, if applicable
 *            for the algorithm type.  Defaults to @src_divs if unset.
 * @iv_offset: misalignment of the IV in the range [0..MAX_ALGAPI_ALIGNMASK+1],
 *             where 0 is aligned to a 2*(MAX_ALGAPI_ALIGNMASK+1) byte boundary
 * @iv_offset_relative_to_alignmask: if true, add the algorithm's alignmask to
 *                                   the @iv_offset
 * @finalization_type: what finalization function to use for hashes
 * @nosimd: execute with SIMD disabled?  Requires !CRYPTO_TFM_REQ_MAY_SLEEP.
 */
struct testvec_config {
        const char *name;
        bool inplace;
        u32 req_flags;
        struct test_sg_division src_divs[XBUFSIZE];
        struct test_sg_division dst_divs[XBUFSIZE];
        unsigned int iv_offset;
        bool iv_offset_relative_to_alignmask;
        enum finalization_type finalization_type;
        bool nosimd;
};

#define TESTVEC_CONFIG_NAMELEN  192

/*
 * The following are the lists of testvec_configs to test for each algorithm
 * type when the basic crypto self-tests are enabled, i.e. when
 * CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is unset.  They aim to provide good test
 * coverage, while keeping the test time much shorter than the full fuzz tests
 * so that the basic tests can be enabled in a wider range of circumstances.
 */

/* Configs for skciphers and aeads */
static const struct testvec_config default_cipher_testvec_configs[] = {
        {
                .name = "in-place",
                .inplace = true,
                .src_divs = { { .proportion_of_total = 10000 } },
        }, {
                .name = "out-of-place",
                .src_divs = { { .proportion_of_total = 10000 } },
        }, {
                .name = "unaligned buffer, offset=1",
                .src_divs = { { .proportion_of_total = 10000, .offset = 1 } },
                .iv_offset = 1,
        }, {
                .name = "buffer aligned only to alignmask",
                .src_divs = {
                        {
                                .proportion_of_total = 10000,
                                .offset = 1,
                                .offset_relative_to_alignmask = true,
                        },
                },
                .iv_offset = 1,
                .iv_offset_relative_to_alignmask = true,
        }, {
                .name = "two even aligned splits",
                .src_divs = {
                        { .proportion_of_total = 5000 },
                        { .proportion_of_total = 5000 },
                },
        }, {
                .name = "uneven misaligned splits, may sleep",
                .req_flags = CRYPTO_TFM_REQ_MAY_SLEEP,
                .src_divs = {
                        { .proportion_of_total = 1900, .offset = 33 },
                        { .proportion_of_total = 3300, .offset = 7  },
                        { .proportion_of_total = 4800, .offset = 18 },
                },
                .iv_offset = 3,
        }, {
                .name = "misaligned splits crossing pages, inplace",
                .inplace = true,
                .src_divs = {
                        {
                                .proportion_of_total = 7500,
                                .offset = PAGE_SIZE - 32
                        }, {
                                .proportion_of_total = 2500,
                                .offset = PAGE_SIZE - 7
                        },
                },
        }
};

static const struct testvec_config default_hash_testvec_configs[] = {
        {
                .name = "init+update+final aligned buffer",
                .src_divs = { { .proportion_of_total = 10000 } },
                .finalization_type = FINALIZATION_TYPE_FINAL,
        }, {
                .name = "init+finup aligned buffer",
                .src_divs = { { .proportion_of_total = 10000 } },
                .finalization_type = FINALIZATION_TYPE_FINUP,
        }, {
                .name = "digest aligned buffer",
                .src_divs = { { .proportion_of_total = 10000 } },
                .finalization_type = FINALIZATION_TYPE_DIGEST,
        }, {
                .name = "init+update+final misaligned buffer",
                .src_divs = { { .proportion_of_total = 10000, .offset = 1 } },
                .finalization_type = FINALIZATION_TYPE_FINAL,
        }, {
                .name = "digest buffer aligned only to alignmask",
                .src_divs = {
                        {
                                .proportion_of_total = 10000,
                                .offset = 1,
                                .offset_relative_to_alignmask = true,
                        },
                },
                .finalization_type = FINALIZATION_TYPE_DIGEST,
        }, {
                .name = "init+update+update+final two even splits",
                .src_divs = {
                        { .proportion_of_total = 5000 },
                        {
                                .proportion_of_total = 5000,
                                .flush_type = FLUSH_TYPE_FLUSH,
                        },
                },
                .finalization_type = FINALIZATION_TYPE_FINAL,
        }, {
                .name = "digest uneven misaligned splits, may sleep",
                .req_flags = CRYPTO_TFM_REQ_MAY_SLEEP,
                .src_divs = {
                        { .proportion_of_total = 1900, .offset = 33 },
                        { .proportion_of_total = 3300, .offset = 7  },
                        { .proportion_of_total = 4800, .offset = 18 },
                },
                .finalization_type = FINALIZATION_TYPE_DIGEST,
        }, {
                .name = "digest misaligned splits crossing pages",
                .src_divs = {
                        {
                                .proportion_of_total = 7500,
                                .offset = PAGE_SIZE - 32,
                        }, {
                                .proportion_of_total = 2500,
                                .offset = PAGE_SIZE - 7,
                        },
                },
                .finalization_type = FINALIZATION_TYPE_DIGEST,
        }, {
                .name = "import/export",
                .src_divs = {
                        {
                                .proportion_of_total = 6500,
                                .flush_type = FLUSH_TYPE_REIMPORT,
                        }, {
                                .proportion_of_total = 3500,
                                .flush_type = FLUSH_TYPE_REIMPORT,
                        },
                },
                .finalization_type = FINALIZATION_TYPE_FINAL,
        }
};

static unsigned int count_test_sg_divisions(const struct test_sg_division *divs)
{
        unsigned int remaining = TEST_SG_TOTAL;
        unsigned int ndivs = 0;

        do {
                remaining -= divs[ndivs++].proportion_of_total;
        } while (remaining);

        return ndivs;
}

#define SGDIVS_HAVE_FLUSHES     BIT(0)
#define SGDIVS_HAVE_NOSIMD      BIT(1)

static bool valid_sg_divisions(const struct test_sg_division *divs,
                               unsigned int count, int *flags_ret)
{
        unsigned int total = 0;
        unsigned int i;

        for (i = 0; i < count && total != TEST_SG_TOTAL; i++) {
                if (divs[i].proportion_of_total <= 0 ||
                    divs[i].proportion_of_total > TEST_SG_TOTAL - total)
                        return false;
                total += divs[i].proportion_of_total;
                if (divs[i].flush_type != FLUSH_TYPE_NONE)
                        *flags_ret |= SGDIVS_HAVE_FLUSHES;
                if (divs[i].nosimd)
                        *flags_ret |= SGDIVS_HAVE_NOSIMD;
        }
        return total == TEST_SG_TOTAL &&
                memchr_inv(&divs[i], 0, (count - i) * sizeof(divs[0])) == NULL;
}

/*
 * Check whether the given testvec_config is valid.  This isn't strictly needed
 * since every testvec_config should be valid, but check anyway so that people
 * don't unknowingly add broken configs that don't do what they wanted.
 */
static bool valid_testvec_config(const struct testvec_config *cfg)
{
        int flags = 0;

        if (cfg->name == NULL)
                return false;

        if (!valid_sg_divisions(cfg->src_divs, ARRAY_SIZE(cfg->src_divs),
                                &flags))
                return false;

        if (cfg->dst_divs[0].proportion_of_total) {
                if (!valid_sg_divisions(cfg->dst_divs,
                                        ARRAY_SIZE(cfg->dst_divs), &flags))
                        return false;
        } else {
                if (memchr_inv(cfg->dst_divs, 0, sizeof(cfg->dst_divs)))
                        return false;
                /* defaults to dst_divs=src_divs */
        }

        if (cfg->iv_offset +
            (cfg->iv_offset_relative_to_alignmask ? MAX_ALGAPI_ALIGNMASK : 0) >
            MAX_ALGAPI_ALIGNMASK + 1)
                return false;

        if ((flags & (SGDIVS_HAVE_FLUSHES | SGDIVS_HAVE_NOSIMD)) &&
            cfg->finalization_type == FINALIZATION_TYPE_DIGEST)
                return false;

        if ((cfg->nosimd || (flags & SGDIVS_HAVE_NOSIMD)) &&
            (cfg->req_flags & CRYPTO_TFM_REQ_MAY_SLEEP))
                return false;

        return true;
}

struct test_sglist {
        char *bufs[XBUFSIZE];
        struct scatterlist sgl[XBUFSIZE];
        struct scatterlist sgl_saved[XBUFSIZE];
        struct scatterlist *sgl_ptr;
        unsigned int nents;
};

static int init_test_sglist(struct test_sglist *tsgl)
{
        return __testmgr_alloc_buf(tsgl->bufs, 1 /* two pages per buffer */);
}

static void destroy_test_sglist(struct test_sglist *tsgl)
{
        return __testmgr_free_buf(tsgl->bufs, 1 /* two pages per buffer */);
}

/**
 * build_test_sglist() - build a scatterlist for a crypto test
 *
 * @tsgl: the scatterlist to build.  @tsgl->bufs[] contains an array of 2-page
 *        buffers which the scatterlist @tsgl->sgl[] will be made to point into.
 * @divs: the layout specification on which the scatterlist will be based
 * @alignmask: the algorithm's alignmask
 * @total_len: the total length of the scatterlist to build in bytes
 * @data: if non-NULL, the buffers will be filled with this data until it ends.
 *        Otherwise the buffers will be poisoned.  In both cases, some bytes
 *        past the end of each buffer will be poisoned to help detect overruns.
 * @out_divs: if non-NULL, the test_sg_division to which each scatterlist entry
 *            corresponds will be returned here.  This will match @divs except
 *            that divisions resolving to a length of 0 are omitted as they are
 *            not included in the scatterlist.
 *
 * Return: 0 or a -errno value
 */
static int build_test_sglist(struct test_sglist *tsgl,
                             const struct test_sg_division *divs,
                             const unsigned int alignmask,
                             const unsigned int total_len,
                             struct iov_iter *data,
                             const struct test_sg_division *out_divs[XBUFSIZE])
{
        struct {
                const struct test_sg_division *div;
                size_t length;
        } partitions[XBUFSIZE];
        const unsigned int ndivs = count_test_sg_divisions(divs);
        unsigned int len_remaining = total_len;
        unsigned int i;

        BUILD_BUG_ON(ARRAY_SIZE(partitions) != ARRAY_SIZE(tsgl->sgl));
        if (WARN_ON(ndivs > ARRAY_SIZE(partitions)))
                return -EINVAL;

        /* Calculate the (div, length) pairs */
        tsgl->nents = 0;
        for (i = 0; i < ndivs; i++) {
                unsigned int len_this_sg =
                        min(len_remaining,
                            (total_len * divs[i].proportion_of_total +
                             TEST_SG_TOTAL / 2) / TEST_SG_TOTAL);

                if (len_this_sg != 0) {
                        partitions[tsgl->nents].div = &divs[i];
                        partitions[tsgl->nents].length = len_this_sg;
                        tsgl->nents++;
                        len_remaining -= len_this_sg;
                }
        }
        if (tsgl->nents == 0) {
                partitions[tsgl->nents].div = &divs[0];
                partitions[tsgl->nents].length = 0;
                tsgl->nents++;
        }
        partitions[tsgl->nents - 1].length += len_remaining;

        /* Set up the sgl entries and fill the data or poison */
        sg_init_table(tsgl->sgl, tsgl->nents);
        for (i = 0; i < tsgl->nents; i++) {
                unsigned int offset = partitions[i].div->offset;
                void *addr;

                if (partitions[i].div->offset_relative_to_alignmask)
                        offset += alignmask;

                while (offset + partitions[i].length + TESTMGR_POISON_LEN >
                       2 * PAGE_SIZE) {
                        if (WARN_ON(offset <= 0))
                                return -EINVAL;
                        offset /= 2;
                }

                addr = &tsgl->bufs[i][offset];
                sg_set_buf(&tsgl->sgl[i], addr, partitions[i].length);

                if (out_divs)
                        out_divs[i] = partitions[i].div;

                if (data) {
                        size_t copy_len, copied;

                        copy_len = min(partitions[i].length, data->count);
                        copied = copy_from_iter(addr, copy_len, data);
                        if (WARN_ON(copied != copy_len))
                                return -EINVAL;
                        testmgr_poison(addr + copy_len, partitions[i].length +
                                       TESTMGR_POISON_LEN - copy_len);
                } else {
                        testmgr_poison(addr, partitions[i].length +
                                       TESTMGR_POISON_LEN);
                }
        }

        sg_mark_end(&tsgl->sgl[tsgl->nents - 1]);
        tsgl->sgl_ptr = tsgl->sgl;
        memcpy(tsgl->sgl_saved, tsgl->sgl, tsgl->nents * sizeof(tsgl->sgl[0]));
        return 0;
}

/*
 * Verify that a scatterlist crypto operation produced the correct output.
 *
 * @tsgl: scatterlist containing the actual output
 * @expected_output: buffer containing the expected output
 * @len_to_check: length of @expected_output in bytes
 * @unchecked_prefix_len: number of ignored bytes in @tsgl prior to real result
 * @check_poison: verify that the poison bytes after each chunk are intact?
 *
 * Return: 0 if correct, -EINVAL if incorrect, -EOVERFLOW if buffer overrun.
 */
static int verify_correct_output(const struct test_sglist *tsgl,
                                 const char *expected_output,
                                 unsigned int len_to_check,
                                 unsigned int unchecked_prefix_len,
                                 bool check_poison)
{
        unsigned int i;

        for (i = 0; i < tsgl->nents; i++) {
                struct scatterlist *sg = &tsgl->sgl_ptr[i];
                unsigned int len = sg->length;
                unsigned int offset = sg->offset;
                const char *actual_output;

                if (unchecked_prefix_len) {
                        if (unchecked_prefix_len >= len) {
                                unchecked_prefix_len -= len;
                                continue;
                        }
                        offset += unchecked_prefix_len;
                        len -= unchecked_prefix_len;
                        unchecked_prefix_len = 0;
                }
                len = min(len, len_to_check);
                actual_output = page_address(sg_page(sg)) + offset;
                if (memcmp(expected_output, actual_output, len) != 0)
                        return -EINVAL;
                if (check_poison &&
                    !testmgr_is_poison(actual_output + len, TESTMGR_POISON_LEN))
                        return -EOVERFLOW;
                len_to_check -= len;
                expected_output += len;
        }
        if (WARN_ON(len_to_check != 0))
                return -EINVAL;
        return 0;
}

static bool is_test_sglist_corrupted(const struct test_sglist *tsgl)
{
        unsigned int i;

        for (i = 0; i < tsgl->nents; i++) {
                if (tsgl->sgl[i].page_link != tsgl->sgl_saved[i].page_link)
                        return true;
                if (tsgl->sgl[i].offset != tsgl->sgl_saved[i].offset)
                        return true;
                if (tsgl->sgl[i].length != tsgl->sgl_saved[i].length)
                        return true;
        }
        return false;
}

struct cipher_test_sglists {
        struct test_sglist src;
        struct test_sglist dst;
};

static struct cipher_test_sglists *alloc_cipher_test_sglists(void)
{
        struct cipher_test_sglists *tsgls;

        tsgls = kmalloc(sizeof(*tsgls), GFP_KERNEL);
        if (!tsgls)
                return NULL;

        if (init_test_sglist(&tsgls->src) != 0)
                goto fail_kfree;
        if (init_test_sglist(&tsgls->dst) != 0)
                goto fail_destroy_src;

        return tsgls;

fail_destroy_src:
        destroy_test_sglist(&tsgls->src);
fail_kfree:
        kfree(tsgls);
        return NULL;
}

static void free_cipher_test_sglists(struct cipher_test_sglists *tsgls)
{
        if (tsgls) {
                destroy_test_sglist(&tsgls->src);
                destroy_test_sglist(&tsgls->dst);
                kfree(tsgls);
        }
}

/* Build the src and dst scatterlists for an skcipher or AEAD test */
static int build_cipher_test_sglists(struct cipher_test_sglists *tsgls,
                                     const struct testvec_config *cfg,
                                     unsigned int alignmask,
                                     unsigned int src_total_len,
                                     unsigned int dst_total_len,
                                     const struct kvec *inputs,
                                     unsigned int nr_inputs)
{
        struct iov_iter input;
        int err;

        iov_iter_kvec(&input, WRITE, inputs, nr_inputs, src_total_len);
        err = build_test_sglist(&tsgls->src, cfg->src_divs, alignmask,
                                cfg->inplace ?
                                        max(dst_total_len, src_total_len) :
                                        src_total_len,
                                &input, NULL);
        if (err)
                return err;

        if (cfg->inplace) {
                tsgls->dst.sgl_ptr = tsgls->src.sgl;
                tsgls->dst.nents = tsgls->src.nents;
                return 0;
        }
        return build_test_sglist(&tsgls->dst,
                                 cfg->dst_divs[0].proportion_of_total ?
                                        cfg->dst_divs : cfg->src_divs,
                                 alignmask, dst_total_len, NULL, NULL);
}

#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS

/* Generate a random length in range [0, max_len], but prefer smaller values */
static unsigned int generate_random_length(unsigned int max_len)
{
        unsigned int len = prandom_u32() % (max_len + 1);

        switch (prandom_u32() % 4) {
        case 0:
                return len % 64;
        case 1:
                return len % 256;
        case 2:
                return len % 1024;
        default:
                return len;
        }
}

/* Sometimes make some random changes to the given data buffer */
static void mutate_buffer(u8 *buf, size_t count)
{
        size_t num_flips;
        size_t i;
        size_t pos;

        /* Sometimes flip some bits */
        if (prandom_u32() % 4 == 0) {
                num_flips = min_t(size_t, 1 << (prandom_u32() % 8), count * 8);
                for (i = 0; i < num_flips; i++) {
                        pos = prandom_u32() % (count * 8);
                        buf[pos / 8] ^= 1 << (pos % 8);
                }
        }

        /* Sometimes flip some bytes */
        if (prandom_u32() % 4 == 0) {
                num_flips = min_t(size_t, 1 << (prandom_u32() % 8), count);
                for (i = 0; i < num_flips; i++)
                        buf[prandom_u32() % count] ^= 0xff;
        }
}

/* Randomly generate 'count' bytes, but sometimes make them "interesting" */
static void generate_random_bytes(u8 *buf, size_t count)
{
        u8 b;
        u8 increment;
        size_t i;

        if (count == 0)
                return;

        switch (prandom_u32() % 8) { /* Choose a generation strategy */
        case 0:
        case 1:
                /* All the same byte, plus optional mutations */
                switch (prandom_u32() % 4) {
                case 0:
                        b = 0x00;
                        break;
                case 1:
                        b = 0xff;
                        break;
                default:
                        b = (u8)prandom_u32();
                        break;
                }
                memset(buf, b, count);
                mutate_buffer(buf, count);
                break;
        case 2:
                /* Ascending or descending bytes, plus optional mutations */
                increment = (u8)prandom_u32();
                b = (u8)prandom_u32();
                for (i = 0; i < count; i++, b += increment)
                        buf[i] = b;
                mutate_buffer(buf, count);
                break;
        default:
                /* Fully random bytes */
                for (i = 0; i < count; i++)
                        buf[i] = (u8)prandom_u32();
        }
}

static char *generate_random_sgl_divisions(struct test_sg_division *divs,
                                           size_t max_divs, char *p, char *end,
                                           bool gen_flushes, u32 req_flags)
{
        struct test_sg_division *div = divs;
        unsigned int remaining = TEST_SG_TOTAL;

        do {
                unsigned int this_len;
                const char *flushtype_str;

                if (div == &divs[max_divs - 1] || prandom_u32() % 2 == 0)
                        this_len = remaining;
                else
                        this_len = 1 + (prandom_u32() % remaining);
                div->proportion_of_total = this_len;

                if (prandom_u32() % 4 == 0)
                        div->offset = (PAGE_SIZE - 128) + (prandom_u32() % 128);
                else if (prandom_u32() % 2 == 0)
                        div->offset = prandom_u32() % 32;
                else
                        div->offset = prandom_u32() % PAGE_SIZE;
                if (prandom_u32() % 8 == 0)
                        div->offset_relative_to_alignmask = true;

                div->flush_type = FLUSH_TYPE_NONE;
                if (gen_flushes) {
                        switch (prandom_u32() % 4) {
                        case 0:
                                div->flush_type = FLUSH_TYPE_REIMPORT;
                                break;
                        case 1:
                                div->flush_type = FLUSH_TYPE_FLUSH;
                                break;
                        }
                }

                if (div->flush_type != FLUSH_TYPE_NONE &&
                    !(req_flags & CRYPTO_TFM_REQ_MAY_SLEEP) &&
                    prandom_u32() % 2 == 0)
                        div->nosimd = true;

                switch (div->flush_type) {
                case FLUSH_TYPE_FLUSH:
                        if (div->nosimd)
                                flushtype_str = "<flush,nosimd>";
                        else
                                flushtype_str = "<flush>";
                        break;
                case FLUSH_TYPE_REIMPORT:
                        if (div->nosimd)
                                flushtype_str = "<reimport,nosimd>";
                        else
                                flushtype_str = "<reimport>";
                        break;
                default:
                        flushtype_str = "";
                        break;
                }

                BUILD_BUG_ON(TEST_SG_TOTAL != 10000); /* for "%u.%u%%" */
                p += scnprintf(p, end - p, "%s%u.%u%%@%s+%u%s", flushtype_str,
                               this_len / 100, this_len % 100,
                               div->offset_relative_to_alignmask ?
                                        "alignmask" : "",
                               div->offset, this_len == remaining ? "" : ", ");
                remaining -= this_len;
                div++;
        } while (remaining);

        return p;
}

/* Generate a random testvec_config for fuzz testing */
static void generate_random_testvec_config(struct testvec_config *cfg,
                                           char *name, size_t max_namelen)
{
        char *p = name;
        char * const end = name + max_namelen;

        memset(cfg, 0, sizeof(*cfg));

        cfg->name = name;

        p += scnprintf(p, end - p, "random:");

        if (prandom_u32() % 2 == 0) {
                cfg->inplace = true;
                p += scnprintf(p, end - p, " inplace");
        }

        if (prandom_u32() % 2 == 0) {
                cfg->req_flags |= CRYPTO_TFM_REQ_MAY_SLEEP;
                p += scnprintf(p, end - p, " may_sleep");
        }

        switch (prandom_u32() % 4) {
        case 0:
                cfg->finalization_type = FINALIZATION_TYPE_FINAL;
                p += scnprintf(p, end - p, " use_final");
                break;
        case 1:
                cfg->finalization_type = FINALIZATION_TYPE_FINUP;
                p += scnprintf(p, end - p, " use_finup");
                break;
        default:
                cfg->finalization_type = FINALIZATION_TYPE_DIGEST;
                p += scnprintf(p, end - p, " use_digest");
                break;
        }

        if (!(cfg->req_flags & CRYPTO_TFM_REQ_MAY_SLEEP) &&
            prandom_u32() % 2 == 0) {
                cfg->nosimd = true;
                p += scnprintf(p, end - p, " nosimd");
        }

        p += scnprintf(p, end - p, " src_divs=[");
        p = generate_random_sgl_divisions(cfg->src_divs,
                                          ARRAY_SIZE(cfg->src_divs), p, end,
                                          (cfg->finalization_type !=
                                           FINALIZATION_TYPE_DIGEST),
                                          cfg->req_flags);
        p += scnprintf(p, end - p, "]");

        if (!cfg->inplace && prandom_u32() % 2 == 0) {
                p += scnprintf(p, end - p, " dst_divs=[");
                p = generate_random_sgl_divisions(cfg->dst_divs,
                                                  ARRAY_SIZE(cfg->dst_divs),
                                                  p, end, false,
                                                  cfg->req_flags);
                p += scnprintf(p, end - p, "]");
        }

        if (prandom_u32() % 2 == 0) {
                cfg->iv_offset = 1 + (prandom_u32() % MAX_ALGAPI_ALIGNMASK);
                p += scnprintf(p, end - p, " iv_offset=%u", cfg->iv_offset);
        }

        WARN_ON_ONCE(!valid_testvec_config(cfg));
}

static void crypto_disable_simd_for_test(void)
{
        preempt_disable();
        __this_cpu_write(crypto_simd_disabled_for_test, true);
}

static void crypto_reenable_simd_for_test(void)
{
        __this_cpu_write(crypto_simd_disabled_for_test, false);
        preempt_enable();
}

/*
 * Given an algorithm name, build the name of the generic implementation of that
 * algorithm, assuming the usual naming convention.  Specifically, this appends
 * "-generic" to every part of the name that is not a template name.  Examples:
 *
 *      aes => aes-generic
 *      cbc(aes) => cbc(aes-generic)
 *      cts(cbc(aes)) => cts(cbc(aes-generic))
 *      rfc7539(chacha20,poly1305) => rfc7539(chacha20-generic,poly1305-generic)
 *
 * Return: 0 on success, or -ENAMETOOLONG if the generic name would be too long
 */
static int build_generic_driver_name(const char *algname,
                                     char driver_name[CRYPTO_MAX_ALG_NAME])
{
        const char *in = algname;
        char *out = driver_name;
        size_t len = strlen(algname);

        if (len >= CRYPTO_MAX_ALG_NAME)
                goto too_long;
        do {
                const char *in_saved = in;

                while (*in && *in != '(' && *in != ')' && *in != ',')
                        *out++ = *in++;
                if (*in != '(' && in > in_saved) {
                        len += 8;
                        if (len >= CRYPTO_MAX_ALG_NAME)
                                goto too_long;
                        memcpy(out, "-generic", 8);
                        out += 8;
                }
        } while ((*out++ = *in++) != '\0');
        return 0;

too_long:
        pr_err("alg: generic driver name for \"%s\" would be too long\n",
               algname);
        return -ENAMETOOLONG;
}
#else /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
static void crypto_disable_simd_for_test(void)
{
}

static void crypto_reenable_simd_for_test(void)
{
}
#endif /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */

static int build_hash_sglist(struct test_sglist *tsgl,
                             const struct hash_testvec *vec,
                             const struct testvec_config *cfg,
                             unsigned int alignmask,
                             const struct test_sg_division *divs[XBUFSIZE])
{
        struct kvec kv;
        struct iov_iter input;

        kv.iov_base = (void *)vec->plaintext;
        kv.iov_len = vec->psize;
        iov_iter_kvec(&input, WRITE, &kv, 1, vec->psize);
        return build_test_sglist(tsgl, cfg->src_divs, alignmask, vec->psize,
                                 &input, divs);
}

static int check_hash_result(const char *type,
                             const u8 *result, unsigned int digestsize,
                             const struct hash_testvec *vec,
                             const char *vec_name,
                             const char *driver,
                             const struct testvec_config *cfg)
{
        if (memcmp(result, vec->digest, digestsize) != 0) {
                pr_err("alg: %s: %s test failed (wrong result) on test vector %s, cfg=\"%s\"\n",
                       type, driver, vec_name, cfg->name);
                return -EINVAL;
        }
        if (!testmgr_is_poison(&result[digestsize], TESTMGR_POISON_LEN)) {
                pr_err("alg: %s: %s overran result buffer on test vector %s, cfg=\"%s\"\n",
                       type, driver, vec_name, cfg->name);
                return -EOVERFLOW;
        }
        return 0;
}

static inline int check_shash_op(const char *op, int err,
                                 const char *driver, const char *vec_name,
                                 const struct testvec_config *cfg)
{
        if (err)
                pr_err("alg: shash: %s %s() failed with err %d on test vector %s, cfg=\"%s\"\n",
                       driver, op, err, vec_name, cfg->name);
        return err;
}

static inline const void *sg_data(struct scatterlist *sg)
{
        return page_address(sg_page(sg)) + sg->offset;
}

/* Test one hash test vector in one configuration, using the shash API */
static int test_shash_vec_cfg(const char *driver,
                              const struct hash_testvec *vec,
                              const char *vec_name,
                              const struct testvec_config *cfg,
                              struct shash_desc *desc,
                              struct test_sglist *tsgl,
                              u8 *hashstate)
{
        struct crypto_shash *tfm = desc->tfm;
        const unsigned int alignmask = crypto_shash_alignmask(tfm);
        const unsigned int digestsize = crypto_shash_digestsize(tfm);
        const unsigned int statesize = crypto_shash_statesize(tfm);
        const struct test_sg_division *divs[XBUFSIZE];
        unsigned int i;
        u8 result[HASH_MAX_DIGESTSIZE + TESTMGR_POISON_LEN];
        int err;

        /* Set the key, if specified */
        if (vec->ksize) {
                err = crypto_shash_setkey(tfm, vec->key, vec->ksize);
                if (err) {
                        if (err == vec->setkey_error)
                                return 0;
                        pr_err("alg: shash: %s setkey failed on test vector %s; expected_error=%d, actual_error=%d, flags=%#x\n",
                               driver, vec_name, vec->setkey_error, err,
                               crypto_shash_get_flags(tfm));
                        return err;
                }
                if (vec->setkey_error) {
                        pr_err("alg: shash: %s setkey unexpectedly succeeded on test vector %s; expected_error=%d\n",
                               driver, vec_name, vec->setkey_error);
                        return -EINVAL;
                }
        }

        /* Build the scatterlist for the source data */
        err = build_hash_sglist(tsgl, vec, cfg, alignmask, divs);
        if (err) {
                pr_err("alg: shash: %s: error preparing scatterlist for test vector %s, cfg=\"%s\"\n",
                       driver, vec_name, cfg->name);
                return err;
        }

        /* Do the actual hashing */

        testmgr_poison(desc->__ctx, crypto_shash_descsize(tfm));
        testmgr_poison(result, digestsize + TESTMGR_POISON_LEN);

        if (cfg->finalization_type == FINALIZATION_TYPE_DIGEST ||
            vec->digest_error) {
                /* Just using digest() */
                if (tsgl->nents != 1)
                        return 0;
                if (cfg->nosimd)
                        crypto_disable_simd_for_test();
                err = crypto_shash_digest(desc, sg_data(&tsgl->sgl[0]),
                                          tsgl->sgl[0].length, result);
                if (cfg->nosimd)
                        crypto_reenable_simd_for_test();
                if (err) {
                        if (err == vec->digest_error)
                                return 0;
                        pr_err("alg: shash: %s digest() failed on test vector %s; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
                               driver, vec_name, vec->digest_error, err,
                               cfg->name);
                        return err;
                }
                if (vec->digest_error) {
                        pr_err("alg: shash: %s digest() unexpectedly succeeded on test vector %s; expected_error=%d, cfg=\"%s\"\n",
                               driver, vec_name, vec->digest_error, cfg->name);
                        return -EINVAL;
                }
                goto result_ready;
        }

        /* Using init(), zero or more update(), then final() or finup() */

        if (cfg->nosimd)
                crypto_disable_simd_for_test();
        err = crypto_shash_init(desc);
        if (cfg->nosimd)
                crypto_reenable_simd_for_test();
        err = check_shash_op("init", err, driver, vec_name, cfg);
        if (err)
                return err;

        for (i = 0; i < tsgl->nents; i++) {
                if (i + 1 == tsgl->nents &&
                    cfg->finalization_type == FINALIZATION_TYPE_FINUP) {
                        if (divs[i]->nosimd)
                                crypto_disable_simd_for_test();
                        err = crypto_shash_finup(desc, sg_data(&tsgl->sgl[i]),
                                                 tsgl->sgl[i].length, result);
                        if (divs[i]->nosimd)
                                crypto_reenable_simd_for_test();
                        err = check_shash_op("finup", err, driver, vec_name,
                                             cfg);
                        if (err)
                                return err;
                        goto result_ready;
                }
                if (divs[i]->nosimd)
                        crypto_disable_simd_for_test();
                err = crypto_shash_update(desc, sg_data(&tsgl->sgl[i]),
                                          tsgl->sgl[i].length);
                if (divs[i]->nosimd)
                        crypto_reenable_simd_for_test();
                err = check_shash_op("update", err, driver, vec_name, cfg);
                if (err)
                        return err;
                if (divs[i]->flush_type == FLUSH_TYPE_REIMPORT) {
                        /* Test ->export() and ->import() */
                        testmgr_poison(hashstate + statesize,
                                       TESTMGR_POISON_LEN);
                        err = crypto_shash_export(desc, hashstate);
                        err = check_shash_op("export", err, driver, vec_name,
                                             cfg);
                        if (err)
                                return err;
                        if (!testmgr_is_poison(hashstate + statesize,
                                               TESTMGR_POISON_LEN)) {
                                pr_err("alg: shash: %s export() overran state buffer on test vector %s, cfg=\"%s\"\n",
                                       driver, vec_name, cfg->name);
                                return -EOVERFLOW;
                        }
                        testmgr_poison(desc->__ctx, crypto_shash_descsize(tfm));
                        err = crypto_shash_import(desc, hashstate);
                        err = check_shash_op("import", err, driver, vec_name,
                                             cfg);
                        if (err)
                                return err;
                }
        }

        if (cfg->nosimd)
                crypto_disable_simd_for_test();
        err = crypto_shash_final(desc, result);
        if (cfg->nosimd)
                crypto_reenable_simd_for_test();
        err = check_shash_op("final", err, driver, vec_name, cfg);
        if (err)
                return err;
result_ready:
        return check_hash_result("shash", result, digestsize, vec, vec_name,
                                 driver, cfg);
}

static int do_ahash_op(int (*op)(struct ahash_request *req),
                       struct ahash_request *req,
                       struct crypto_wait *wait, bool nosimd)
{
        int err;

        if (nosimd)
                crypto_disable_simd_for_test();

        err = op(req);

        if (nosimd)
                crypto_reenable_simd_for_test();

        return crypto_wait_req(err, wait);
}

static int check_nonfinal_ahash_op(const char *op, int err,
                                   u8 *result, unsigned int digestsize,
                                   const char *driver, const char *vec_name,
                                   const struct testvec_config *cfg)
{
        if (err) {
                pr_err("alg: ahash: %s %s() failed with err %d on test vector %s, cfg=\"%s\"\n",
                       driver, op, err, vec_name, cfg->name);
                return err;
        }
        if (!testmgr_is_poison(result, digestsize)) {
                pr_err("alg: ahash: %s %s() used result buffer on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return -EINVAL;
        }
        return 0;
}

/* Test one hash test vector in one configuration, using the ahash API */
static int test_ahash_vec_cfg(const char *driver,
                              const struct hash_testvec *vec,
                              const char *vec_name,
                              const struct testvec_config *cfg,
                              struct ahash_request *req,
                              struct test_sglist *tsgl,
                              u8 *hashstate)
{
        struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
        const unsigned int alignmask = crypto_ahash_alignmask(tfm);
        const unsigned int digestsize = crypto_ahash_digestsize(tfm);
        const unsigned int statesize = crypto_ahash_statesize(tfm);
        const u32 req_flags = CRYPTO_TFM_REQ_MAY_BACKLOG | cfg->req_flags;
        const struct test_sg_division *divs[XBUFSIZE];
        DECLARE_CRYPTO_WAIT(wait);
        unsigned int i;
        struct scatterlist *pending_sgl;
        unsigned int pending_len;
        u8 result[HASH_MAX_DIGESTSIZE + TESTMGR_POISON_LEN];
        int err;

        /* Set the key, if specified */
        if (vec->ksize) {
                err = crypto_ahash_setkey(tfm, vec->key, vec->ksize);
                if (err) {
                        if (err == vec->setkey_error)
                                return 0;
                        pr_err("alg: ahash: %s setkey failed on test vector %s; expected_error=%d, actual_error=%d, flags=%#x\n",
                               driver, vec_name, vec->setkey_error, err,
                               crypto_ahash_get_flags(tfm));
                        return err;
                }
                if (vec->setkey_error) {
                        pr_err("alg: ahash: %s setkey unexpectedly succeeded on test vector %s; expected_error=%d\n",
                               driver, vec_name, vec->setkey_error);
                        return -EINVAL;
                }
        }

        /* Build the scatterlist for the source data */
        err = build_hash_sglist(tsgl, vec, cfg, alignmask, divs);
        if (err) {
                pr_err("alg: ahash: %s: error preparing scatterlist for test vector %s, cfg=\"%s\"\n",
                       driver, vec_name, cfg->name);
                return err;
        }

        /* Do the actual hashing */

        testmgr_poison(req->__ctx, crypto_ahash_reqsize(tfm));
        testmgr_poison(result, digestsize + TESTMGR_POISON_LEN);

        if (cfg->finalization_type == FINALIZATION_TYPE_DIGEST ||
            vec->digest_error) {
                /* Just using digest() */
                ahash_request_set_callback(req, req_flags, crypto_req_done,
                                           &wait);
                ahash_request_set_crypt(req, tsgl->sgl, result, vec->psize);
                err = do_ahash_op(crypto_ahash_digest, req, &wait, cfg->nosimd);
                if (err) {
                        if (err == vec->digest_error)
                                return 0;
                        pr_err("alg: ahash: %s digest() failed on test vector %s; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
                               driver, vec_name, vec->digest_error, err,
                               cfg->name);
                        return err;
                }
                if (vec->digest_error) {
                        pr_err("alg: ahash: %s digest() unexpectedly succeeded on test vector %s; expected_error=%d, cfg=\"%s\"\n",
                               driver, vec_name, vec->digest_error, cfg->name);
                        return -EINVAL;
                }
                goto result_ready;
        }

        /* Using init(), zero or more update(), then final() or finup() */

        ahash_request_set_callback(req, req_flags, crypto_req_done, &wait);
        ahash_request_set_crypt(req, NULL, result, 0);
        err = do_ahash_op(crypto_ahash_init, req, &wait, cfg->nosimd);
        err = check_nonfinal_ahash_op("init", err, result, digestsize,
                                      driver, vec_name, cfg);
        if (err)
                return err;

        pending_sgl = NULL;
        pending_len = 0;
        for (i = 0; i < tsgl->nents; i++) {
                if (divs[i]->flush_type != FLUSH_TYPE_NONE &&
                    pending_sgl != NULL) {
                        /* update() with the pending data */
                        ahash_request_set_callback(req, req_flags,
                                                   crypto_req_done, &wait);
                        ahash_request_set_crypt(req, pending_sgl, result,
                                                pending_len);
                        err = do_ahash_op(crypto_ahash_update, req, &wait,
                                          divs[i]->nosimd);
                        err = check_nonfinal_ahash_op("update", err,
                                                      result, digestsize,
                                                      driver, vec_name, cfg);
                        if (err)
                                return err;
                        pending_sgl = NULL;
                        pending_len = 0;
                }
                if (divs[i]->flush_type == FLUSH_TYPE_REIMPORT) {
                        /* Test ->export() and ->import() */
                        testmgr_poison(hashstate + statesize,
                                       TESTMGR_POISON_LEN);
                        err = crypto_ahash_export(req, hashstate);
                        err = check_nonfinal_ahash_op("export", err,
                                                      result, digestsize,
                                                      driver, vec_name, cfg);
                        if (err)
                                return err;
                        if (!testmgr_is_poison(hashstate + statesize,
                                               TESTMGR_POISON_LEN)) {
                                pr_err("alg: ahash: %s export() overran state buffer on test vector %s, cfg=\"%s\"\n",
                                       driver, vec_name, cfg->name);
                                return -EOVERFLOW;
                        }

                        testmgr_poison(req->__ctx, crypto_ahash_reqsize(tfm));
                        err = crypto_ahash_import(req, hashstate);
                        err = check_nonfinal_ahash_op("import", err,
                                                      result, digestsize,
                                                      driver, vec_name, cfg);
                        if (err)
                                return err;
                }
                if (pending_sgl == NULL)
                        pending_sgl = &tsgl->sgl[i];
                pending_len += tsgl->sgl[i].length;
        }

        ahash_request_set_callback(req, req_flags, crypto_req_done, &wait);
        ahash_request_set_crypt(req, pending_sgl, result, pending_len);
        if (cfg->finalization_type == FINALIZATION_TYPE_FINAL) {
                /* finish with update() and final() */
                err = do_ahash_op(crypto_ahash_update, req, &wait, cfg->nosimd);
                err = check_nonfinal_ahash_op("update", err, result, digestsize,
                                              driver, vec_name, cfg);
                if (err)
                        return err;
                err = do_ahash_op(crypto_ahash_final, req, &wait, cfg->nosimd);
                if (err) {
                        pr_err("alg: ahash: %s final() failed with err %d on test vector %s, cfg=\"%s\"\n",
                               driver, err, vec_name, cfg->name);
                        return err;
                }
        } else {
                /* finish with finup() */
                err = do_ahash_op(crypto_ahash_finup, req, &wait, cfg->nosimd);
                if (err) {
                        pr_err("alg: ahash: %s finup() failed with err %d on test vector %s, cfg=\"%s\"\n",
                               driver, err, vec_name, cfg->name);
                        return err;
                }
        }

result_ready:
        return check_hash_result("ahash", result, digestsize, vec, vec_name,
                                 driver, cfg);
}

static int test_hash_vec_cfg(const char *driver,
                             const struct hash_testvec *vec,
                             const char *vec_name,
                             const struct testvec_config *cfg,
                             struct ahash_request *req,
                             struct shash_desc *desc,
                             struct test_sglist *tsgl,
                             u8 *hashstate)
{
        int err;

        /*
         * For algorithms implemented as "shash", most bugs will be detected by
         * both the shash and ahash tests.  Test the shash API first so that the
         * failures involve less indirection, so are easier to debug.
         */

        if (desc) {
                err = test_shash_vec_cfg(driver, vec, vec_name, cfg, desc, tsgl,
                                         hashstate);
                if (err)
                        return err;
        }

        return test_ahash_vec_cfg(driver, vec, vec_name, cfg, req, tsgl,
                                  hashstate);
}

static int test_hash_vec(const char *driver, const struct hash_testvec *vec,
                         unsigned int vec_num, struct ahash_request *req,
                         struct shash_desc *desc, struct test_sglist *tsgl,
                         u8 *hashstate)
{
        char vec_name[16];
        unsigned int i;
        int err;

        sprintf(vec_name, "%u", vec_num);

        for (i = 0; i < ARRAY_SIZE(default_hash_testvec_configs); i++) {
                err = test_hash_vec_cfg(driver, vec, vec_name,
                                        &default_hash_testvec_configs[i],
                                        req, desc, tsgl, hashstate);
                if (err)
                        return err;
        }

#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
        if (!noextratests) {
                struct testvec_config cfg;
                char cfgname[TESTVEC_CONFIG_NAMELEN];

                for (i = 0; i < fuzz_iterations; i++) {
                        generate_random_testvec_config(&cfg, cfgname,
                                                       sizeof(cfgname));
                        err = test_hash_vec_cfg(driver, vec, vec_name, &cfg,
                                                req, desc, tsgl, hashstate);
                        if (err)
                                return err;
                        cond_resched();
                }
        }
#endif
        return 0;
}

#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
/*
 * Generate a hash test vector from the given implementation.
 * Assumes the buffers in 'vec' were already allocated.
 */
static void generate_random_hash_testvec(struct shash_desc *desc,
                                         struct hash_testvec *vec,
                                         unsigned int maxkeysize,
                                         unsigned int maxdatasize,
                                         char *name, size_t max_namelen)
{
        /* Data */
        vec->psize = generate_random_length(maxdatasize);
        generate_random_bytes((u8 *)vec->plaintext, vec->psize);

        /*
         * Key: length in range [1, maxkeysize], but usually choose maxkeysize.
         * If algorithm is unkeyed, then maxkeysize == 0 and set ksize = 0.
         */
        vec->setkey_error = 0;
        vec->ksize = 0;
        if (maxkeysize) {
                vec->ksize = maxkeysize;
                if (prandom_u32() % 4 == 0)
                        vec->ksize = 1 + (prandom_u32() % maxkeysize);
                generate_random_bytes((u8 *)vec->key, vec->ksize);

                vec->setkey_error = crypto_shash_setkey(desc->tfm, vec->key,
                                                        vec->ksize);
                /* If the key couldn't be set, no need to continue to digest. */
                if (vec->setkey_error)
                        goto done;
        }

        /* Digest */
        vec->digest_error = crypto_shash_digest(desc, vec->plaintext,
                                                vec->psize, (u8 *)vec->digest);
done:
        snprintf(name, max_namelen, "\"random: psize=%u ksize=%u\"",
                 vec->psize, vec->ksize);
}

/*
 * Test the hash algorithm represented by @req against the corresponding generic
 * implementation, if one is available.
 */
static int test_hash_vs_generic_impl(const char *driver,
                                     const char *generic_driver,
                                     unsigned int maxkeysize,
                                     struct ahash_request *req,
                                     struct shash_desc *desc,
                                     struct test_sglist *tsgl,
                                     u8 *hashstate)
{
        struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
        const unsigned int digestsize = crypto_ahash_digestsize(tfm);
        const unsigned int blocksize = crypto_ahash_blocksize(tfm);
        const unsigned int maxdatasize = (2 * PAGE_SIZE) - TESTMGR_POISON_LEN;
        const char *algname = crypto_hash_alg_common(tfm)->base.cra_name;
        char _generic_driver[CRYPTO_MAX_ALG_NAME];
        struct crypto_shash *generic_tfm = NULL;
        struct shash_desc *generic_desc = NULL;
        unsigned int i;
        struct hash_testvec vec = { 0 };
        char vec_name[64];
        struct testvec_config *cfg;
        char cfgname[TESTVEC_CONFIG_NAMELEN];
        int err;

        if (noextratests)
                return 0;

        if (!generic_driver) { /* Use default naming convention? */
                err = build_generic_driver_name(algname, _generic_driver);
                if (err)
                        return err;
                generic_driver = _generic_driver;
        }

        if (strcmp(generic_driver, driver) == 0) /* Already the generic impl? */
                return 0;

        generic_tfm = crypto_alloc_shash(generic_driver, 0, 0);
        if (IS_ERR(generic_tfm)) {
                err = PTR_ERR(generic_tfm);
                if (err == -ENOENT) {
                        pr_warn("alg: hash: skipping comparison tests for %s because %s is unavailable\n",
                                driver, generic_driver);
                        return 0;
                }
                pr_err("alg: hash: error allocating %s (generic impl of %s): %d\n",
                       generic_driver, algname, err);
                return err;
        }

        cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
        if (!cfg) {
                err = -ENOMEM;
                goto out;
        }

        generic_desc = kzalloc(sizeof(*desc) +
                               crypto_shash_descsize(generic_tfm), GFP_KERNEL);
        if (!generic_desc) {
                err = -ENOMEM;
                goto out;
        }
        generic_desc->tfm = generic_tfm;

        /* Check the algorithm properties for consistency. */

        if (digestsize != crypto_shash_digestsize(generic_tfm)) {
                pr_err("alg: hash: digestsize for %s (%u) doesn't match generic impl (%u)\n",
                       driver, digestsize,
                       crypto_shash_digestsize(generic_tfm));
                err = -EINVAL;
                goto out;
        }

        if (blocksize != crypto_shash_blocksize(generic_tfm)) {
                pr_err("alg: hash: blocksize for %s (%u) doesn't match generic impl (%u)\n",
                       driver, blocksize, crypto_shash_blocksize(generic_tfm));
                err = -EINVAL;
                goto out;
        }

        /*
         * Now generate test vectors using the generic implementation, and test
         * the other implementation against them.
         */

        vec.key = kmalloc(maxkeysize, GFP_KERNEL);
        vec.plaintext = kmalloc(maxdatasize, GFP_KERNEL);
        vec.digest = kmalloc(digestsize, GFP_KERNEL);
        if (!vec.key || !vec.plaintext || !vec.digest) {
                err = -ENOMEM;
                goto out;
        }

        for (i = 0; i < fuzz_iterations * 8; i++) {
                generate_random_hash_testvec(generic_desc, &vec,
                                             maxkeysize, maxdatasize,
                                             vec_name, sizeof(vec_name));
                generate_random_testvec_config(cfg, cfgname, sizeof(cfgname));

                err = test_hash_vec_cfg(driver, &vec, vec_name, cfg,
                                        req, desc, tsgl, hashstate);
                if (err)
                        goto out;
                cond_resched();
        }
        err = 0;
out:
        kfree(cfg);
        kfree(vec.key);
        kfree(vec.plaintext);
        kfree(vec.digest);
        crypto_free_shash(generic_tfm);
        kzfree(generic_desc);
        return err;
}
#else /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
static int test_hash_vs_generic_impl(const char *driver,
                                     const char *generic_driver,
                                     unsigned int maxkeysize,
                                     struct ahash_request *req,
                                     struct shash_desc *desc,
                                     struct test_sglist *tsgl,
                                     u8 *hashstate)
{
        return 0;
}
#endif /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */

static int alloc_shash(const char *driver, u32 type, u32 mask,
                       struct crypto_shash **tfm_ret,
                       struct shash_desc **desc_ret)
{
        struct crypto_shash *tfm;
        struct shash_desc *desc;

        tfm = crypto_alloc_shash(driver, type, mask);
        if (IS_ERR(tfm)) {
                if (PTR_ERR(tfm) == -ENOENT) {
                        /*
                         * This algorithm is only available through the ahash
                         * API, not the shash API, so skip the shash tests.
                         */
                        return 0;
                }
                pr_err("alg: hash: failed to allocate shash transform for %s: %ld\n",
                       driver, PTR_ERR(tfm));
                return PTR_ERR(tfm);
        }

        desc = kmalloc(sizeof(*desc) + crypto_shash_descsize(tfm), GFP_KERNEL);
        if (!desc) {
                crypto_free_shash(tfm);
                return -ENOMEM;
        }
        desc->tfm = tfm;

        *tfm_ret = tfm;
        *desc_ret = desc;
        return 0;
}

static int __alg_test_hash(const struct hash_testvec *vecs,
                           unsigned int num_vecs, const char *driver,
                           u32 type, u32 mask,
                           const char *generic_driver, unsigned int maxkeysize)
{
        struct crypto_ahash *atfm = NULL;
        struct ahash_request *req = NULL;
        struct crypto_shash *stfm = NULL;
        struct shash_desc *desc = NULL;
        struct test_sglist *tsgl = NULL;
        u8 *hashstate = NULL;
        unsigned int statesize;
        unsigned int i;
        int err;

        /*
         * Always test the ahash API.  This works regardless of whether the
         * algorithm is implemented as ahash or shash.
         */

        atfm = crypto_alloc_ahash(driver, type, mask);
        if (IS_ERR(atfm)) {
                pr_err("alg: hash: failed to allocate transform for %s: %ld\n",
                       driver, PTR_ERR(atfm));
                return PTR_ERR(atfm);
        }

        req = ahash_request_alloc(atfm, GFP_KERNEL);
        if (!req) {
                pr_err("alg: hash: failed to allocate request for %s\n",
                       driver);
                err = -ENOMEM;
                goto out;
        }

        /*
         * If available also test the shash API, to cover corner cases that may
         * be missed by testing the ahash API only.
         */
        err = alloc_shash(driver, type, mask, &stfm, &desc);
        if (err)
                goto out;

        tsgl = kmalloc(sizeof(*tsgl), GFP_KERNEL);
        if (!tsgl || init_test_sglist(tsgl) != 0) {
                pr_err("alg: hash: failed to allocate test buffers for %s\n",
                       driver);
                kfree(tsgl);
                tsgl = NULL;
                err = -ENOMEM;
                goto out;
        }

        statesize = crypto_ahash_statesize(atfm);
        if (stfm)
                statesize = max(statesize, crypto_shash_statesize(stfm));
        hashstate = kmalloc(statesize + TESTMGR_POISON_LEN, GFP_KERNEL);
        if (!hashstate) {
                pr_err("alg: hash: failed to allocate hash state buffer for %s\n",
                       driver);
                err = -ENOMEM;
                goto out;
        }

        for (i = 0; i < num_vecs; i++) {
                err = test_hash_vec(driver, &vecs[i], i, req, desc, tsgl,
                                    hashstate);
                if (err)
                        goto out;
                cond_resched();
        }
        err = test_hash_vs_generic_impl(driver, generic_driver, maxkeysize, req,
                                        desc, tsgl, hashstate);
out:
        kfree(hashstate);
        if (tsgl) {
                destroy_test_sglist(tsgl);
                kfree(tsgl);
        }
        kfree(desc);
        crypto_free_shash(stfm);
        ahash_request_free(req);
        crypto_free_ahash(atfm);
        return err;
}

static int alg_test_hash(const struct alg_test_desc *desc, const char *driver,
                         u32 type, u32 mask)
{
        const struct hash_testvec *template = desc->suite.hash.vecs;
        unsigned int tcount = desc->suite.hash.count;
        unsigned int nr_unkeyed, nr_keyed;
        unsigned int maxkeysize = 0;
        int err;

        /*
         * For OPTIONAL_KEY algorithms, we have to do all the unkeyed tests
         * first, before setting a key on the tfm.  To make this easier, we
         * require that the unkeyed test vectors (if any) are listed first.
         */

        for (nr_unkeyed = 0; nr_unkeyed < tcount; nr_unkeyed++) {
                if (template[nr_unkeyed].ksize)
                        break;
        }
        for (nr_keyed = 0; nr_unkeyed + nr_keyed < tcount; nr_keyed++) {
                if (!template[nr_unkeyed + nr_keyed].ksize) {
                        pr_err("alg: hash: test vectors for %s out of order, "
                               "unkeyed ones must come first\n", desc->alg);
                        return -EINVAL;
                }
                maxkeysize = max_t(unsigned int, maxkeysize,
                                   template[nr_unkeyed + nr_keyed].ksize);
        }

        err = 0;
        if (nr_unkeyed) {
                err = __alg_test_hash(template, nr_unkeyed, driver, type, mask,
                                      desc->generic_driver, maxkeysize);
                template += nr_unkeyed;
        }

        if (!err && nr_keyed)
                err = __alg_test_hash(template, nr_keyed, driver, type, mask,
                                      desc->generic_driver, maxkeysize);

        return err;
}

static int test_aead_vec_cfg(const char *driver, int enc,
                             const struct aead_testvec *vec,
                             const char *vec_name,
                             const struct testvec_config *cfg,
                             struct aead_request *req,
                             struct cipher_test_sglists *tsgls)
{
        struct crypto_aead *tfm = crypto_aead_reqtfm(req);
        const unsigned int alignmask = crypto_aead_alignmask(tfm);
        const unsigned int ivsize = crypto_aead_ivsize(tfm);
        const unsigned int authsize = vec->clen - vec->plen;
        const u32 req_flags = CRYPTO_TFM_REQ_MAY_BACKLOG | cfg->req_flags;
        const char *op = enc ? "encryption" : "decryption";
        DECLARE_CRYPTO_WAIT(wait);
        u8 _iv[3 * (MAX_ALGAPI_ALIGNMASK + 1) + MAX_IVLEN];
        u8 *iv = PTR_ALIGN(&_iv[0], 2 * (MAX_ALGAPI_ALIGNMASK + 1)) +
                 cfg->iv_offset +
                 (cfg->iv_offset_relative_to_alignmask ? alignmask : 0);
        struct kvec input[2];
        int expected_error;
        int err;

        /* Set the key */
        if (vec->wk)
                crypto_aead_set_flags(tfm, CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
        else
                crypto_aead_clear_flags(tfm, CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
        err = crypto_aead_setkey(tfm, vec->key, vec->klen);
        if (err && err != vec->setkey_error) {
                pr_err("alg: aead: %s setkey failed on test vector %s; expected_error=%d, actual_error=%d, flags=%#x\n",
                       driver, vec_name, vec->setkey_error, err,
                       crypto_aead_get_flags(tfm));
                return err;
        }
        if (!err && vec->setkey_error) {
                pr_err("alg: aead: %s setkey unexpectedly succeeded on test vector %s; expected_error=%d\n",
                       driver, vec_name, vec->setkey_error);
                return -EINVAL;
        }

        /* Set the authentication tag size */
        err = crypto_aead_setauthsize(tfm, authsize);
        if (err && err != vec->setauthsize_error) {
                pr_err("alg: aead: %s setauthsize failed on test vector %s; expected_error=%d, actual_error=%d\n",
                       driver, vec_name, vec->setauthsize_error, err);
                return err;
        }
        if (!err && vec->setauthsize_error) {
                pr_err("alg: aead: %s setauthsize unexpectedly succeeded on test vector %s; expected_error=%d\n",
                       driver, vec_name, vec->setauthsize_error);
                return -EINVAL;
        }

        if (vec->setkey_error || vec->setauthsize_error)
                return 0;

        /* The IV must be copied to a buffer, as the algorithm may modify it */
        if (WARN_ON(ivsize > MAX_IVLEN))
                return -EINVAL;
        if (vec->iv)
                memcpy(iv, vec->iv, ivsize);
        else
                memset(iv, 0, ivsize);

        /* Build the src/dst scatterlists */
        input[0].iov_base = (void *)vec->assoc;
        input[0].iov_len = vec->alen;
        input[1].iov_base = enc ? (void *)vec->ptext : (void *)vec->ctext;
        input[1].iov_len = enc ? vec->plen : vec->clen;
        err = build_cipher_test_sglists(tsgls, cfg, alignmask,
                                        vec->alen + (enc ? vec->plen :
                                                     vec->clen),
                                        vec->alen + (enc ? vec->clen :
                                                     vec->plen),
                                        input, 2);
        if (err) {
                pr_err("alg: aead: %s %s: error preparing scatterlists for test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return err;
        }

        /* Do the actual encryption or decryption */
        testmgr_poison(req->__ctx, crypto_aead_reqsize(tfm));
        aead_request_set_callback(req, req_flags, crypto_req_done, &wait);
        aead_request_set_crypt(req, tsgls->src.sgl_ptr, tsgls->dst.sgl_ptr,
                               enc ? vec->plen : vec->clen, iv);
        aead_request_set_ad(req, vec->alen);
        if (cfg->nosimd)
                crypto_disable_simd_for_test();
        err = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);
        if (cfg->nosimd)
                crypto_reenable_simd_for_test();
        err = crypto_wait_req(err, &wait);

        /* Check that the algorithm didn't overwrite things it shouldn't have */
        if (req->cryptlen != (enc ? vec->plen : vec->clen) ||
            req->assoclen != vec->alen ||
            req->iv != iv ||
            req->src != tsgls->src.sgl_ptr ||
            req->dst != tsgls->dst.sgl_ptr ||
            crypto_aead_reqtfm(req) != tfm ||
            req->base.complete != crypto_req_done ||
            req->base.flags != req_flags ||
            req->base.data != &wait) {
                pr_err("alg: aead: %s %s corrupted request struct on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                if (req->cryptlen != (enc ? vec->plen : vec->clen))
                        pr_err("alg: aead: changed 'req->cryptlen'\n");
                if (req->assoclen != vec->alen)
                        pr_err("alg: aead: changed 'req->assoclen'\n");
                if (req->iv != iv)
                        pr_err("alg: aead: changed 'req->iv'\n");
                if (req->src != tsgls->src.sgl_ptr)
                        pr_err("alg: aead: changed 'req->src'\n");
                if (req->dst != tsgls->dst.sgl_ptr)
                        pr_err("alg: aead: changed 'req->dst'\n");
                if (crypto_aead_reqtfm(req) != tfm)
                        pr_err("alg: aead: changed 'req->base.tfm'\n");
                if (req->base.complete != crypto_req_done)
                        pr_err("alg: aead: changed 'req->base.complete'\n");
                if (req->base.flags != req_flags)
                        pr_err("alg: aead: changed 'req->base.flags'\n");
                if (req->base.data != &wait)
                        pr_err("alg: aead: changed 'req->base.data'\n");
                return -EINVAL;
        }
        if (is_test_sglist_corrupted(&tsgls->src)) {
                pr_err("alg: aead: %s %s corrupted src sgl on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return -EINVAL;
        }
        if (tsgls->dst.sgl_ptr != tsgls->src.sgl &&
            is_test_sglist_corrupted(&tsgls->dst)) {
                pr_err("alg: aead: %s %s corrupted dst sgl on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return -EINVAL;
        }

        /* Check for success or failure */
        expected_error = vec->novrfy ? -EBADMSG : vec->crypt_error;
        if (err) {
                if (err == expected_error)
                        return 0;
                pr_err("alg: aead: %s %s failed on test vector %s; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
                       driver, op, vec_name, expected_error, err, cfg->name);
                return err;
        }
        if (expected_error) {
                pr_err("alg: aead: %s %s unexpectedly succeeded on test vector %s; expected_error=%d, cfg=\"%s\"\n",
                       driver, op, vec_name, expected_error, cfg->name);
                return -EINVAL;
        }

        /* Check for the correct output (ciphertext or plaintext) */
        err = verify_correct_output(&tsgls->dst, enc ? vec->ctext : vec->ptext,
                                    enc ? vec->clen : vec->plen,
                                    vec->alen, enc || !cfg->inplace);
        if (err == -EOVERFLOW) {
                pr_err("alg: aead: %s %s overran dst buffer on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return err;
        }
        if (err) {
                pr_err("alg: aead: %s %s test failed (wrong result) on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return err;
        }

        return 0;
}

static int test_aead_vec(const char *driver, int enc,
                         const struct aead_testvec *vec, unsigned int vec_num,
                         struct aead_request *req,
                         struct cipher_test_sglists *tsgls)
{
        char vec_name[16];
        unsigned int i;
        int err;

        if (enc && vec->novrfy)
                return 0;

        sprintf(vec_name, "%u", vec_num);

        for (i = 0; i < ARRAY_SIZE(default_cipher_testvec_configs); i++) {
                err = test_aead_vec_cfg(driver, enc, vec, vec_name,
                                        &default_cipher_testvec_configs[i],
                                        req, tsgls);
                if (err)
                        return err;
        }

#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
        if (!noextratests) {
                struct testvec_config cfg;
                char cfgname[TESTVEC_CONFIG_NAMELEN];

                for (i = 0; i < fuzz_iterations; i++) {
                        generate_random_testvec_config(&cfg, cfgname,
                                                       sizeof(cfgname));
                        err = test_aead_vec_cfg(driver, enc, vec, vec_name,
                                                &cfg, req, tsgls);
                        if (err)
                                return err;
                        cond_resched();
                }
        }
#endif
        return 0;
}

#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
/*
 * Generate an AEAD test vector from the given implementation.
 * Assumes the buffers in 'vec' were already allocated.
 */
static void generate_random_aead_testvec(struct aead_request *req,
                                         struct aead_testvec *vec,
                                         unsigned int maxkeysize,
                                         unsigned int maxdatasize,
                                         char *name, size_t max_namelen)
{
        struct crypto_aead *tfm = crypto_aead_reqtfm(req);
        const unsigned int ivsize = crypto_aead_ivsize(tfm);
        unsigned int maxauthsize = crypto_aead_alg(tfm)->maxauthsize;
        unsigned int authsize;
        unsigned int total_len;
        int i;
        struct scatterlist src[2], dst;
        u8 iv[MAX_IVLEN];
        DECLARE_CRYPTO_WAIT(wait);

        /* Key: length in [0, maxkeysize], but usually choose maxkeysize */
        vec->klen = maxkeysize;
        if (prandom_u32() % 4 == 0)
                vec->klen = prandom_u32() % (maxkeysize + 1);
        generate_random_bytes((u8 *)vec->key, vec->klen);
        vec->setkey_error = crypto_aead_setkey(tfm, vec->key, vec->klen);

        /* IV */
        generate_random_bytes((u8 *)vec->iv, ivsize);

        /* Tag length: in [0, maxauthsize], but usually choose maxauthsize */
        authsize = maxauthsize;
        if (prandom_u32() % 4 == 0)
                authsize = prandom_u32() % (maxauthsize + 1);
        if (WARN_ON(authsize > maxdatasize))
                authsize = maxdatasize;
        maxdatasize -= authsize;
        vec->setauthsize_error = crypto_aead_setauthsize(tfm, authsize);

        /* Plaintext and associated data */
        total_len = generate_random_length(maxdatasize);
        if (prandom_u32() % 4 == 0)
                vec->alen = 0;
        else
                vec->alen = generate_random_length(total_len);
        vec->plen = total_len - vec->alen;
        generate_random_bytes((u8 *)vec->assoc, vec->alen);
        generate_random_bytes((u8 *)vec->ptext, vec->plen);

        vec->clen = vec->plen + authsize;

        /*
         * If the key or authentication tag size couldn't be set, no need to
         * continue to encrypt.
         */
        if (vec->setkey_error || vec->setauthsize_error)
                goto done;

        /* Ciphertext */
        sg_init_table(src, 2);
        i = 0;
        if (vec->alen)
                sg_set_buf(&src[i++], vec->assoc, vec->alen);
        if (vec->plen)
                sg_set_buf(&src[i++], vec->ptext, vec->plen);
        sg_init_one(&dst, vec->ctext, vec->alen + vec->clen);
        memcpy(iv, vec->iv, ivsize);
        aead_request_set_callback(req, 0, crypto_req_done, &wait);
        aead_request_set_crypt(req, src, &dst, vec->plen, iv);
        aead_request_set_ad(req, vec->alen);
        vec->crypt_error = crypto_wait_req(crypto_aead_encrypt(req), &wait);
        if (vec->crypt_error == 0)
                memmove((u8 *)vec->ctext, vec->ctext + vec->alen, vec->clen);
done:
        snprintf(name, max_namelen,
                 "\"random: alen=%u plen=%u authsize=%u klen=%u\"",
                 vec->alen, vec->plen, authsize, vec->klen);
}

/*
 * Test the AEAD algorithm represented by @req against the corresponding generic
 * implementation, if one is available.
 */
static int test_aead_vs_generic_impl(const char *driver,
                                     const struct alg_test_desc *test_desc,
                                     struct aead_request *req,
                                     struct cipher_test_sglists *tsgls)
{
        struct crypto_aead *tfm = crypto_aead_reqtfm(req);
        const unsigned int ivsize = crypto_aead_ivsize(tfm);
        const unsigned int maxauthsize = crypto_aead_alg(tfm)->maxauthsize;
        const unsigned int blocksize = crypto_aead_blocksize(tfm);
        const unsigned int maxdatasize = (2 * PAGE_SIZE) - TESTMGR_POISON_LEN;
        const char *algname = crypto_aead_alg(tfm)->base.cra_name;
        const char *generic_driver = test_desc->generic_driver;
        char _generic_driver[CRYPTO_MAX_ALG_NAME];
        struct crypto_aead *generic_tfm = NULL;
        struct aead_request *generic_req = NULL;
        unsigned int maxkeysize;
        unsigned int i;
        struct aead_testvec vec = { 0 };
        char vec_name[64];
        struct testvec_config *cfg;
        char cfgname[TESTVEC_CONFIG_NAMELEN];
        int err;

        if (noextratests)
                return 0;

        if (!generic_driver) { /* Use default naming convention? */
                err = build_generic_driver_name(algname, _generic_driver);
                if (err)
                        return err;
                generic_driver = _generic_driver;
        }

        if (strcmp(generic_driver, driver) == 0) /* Already the generic impl? */
                return 0;

        generic_tfm = crypto_alloc_aead(generic_driver, 0, 0);
        if (IS_ERR(generic_tfm)) {
                err = PTR_ERR(generic_tfm);
                if (err == -ENOENT) {
                        pr_warn("alg: aead: skipping comparison tests for %s because %s is unavailable\n",
                                driver, generic_driver);
                        return 0;
                }
                pr_err("alg: aead: error allocating %s (generic impl of %s): %d\n",
                       generic_driver, algname, err);
                return err;
        }

        cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
        if (!cfg) {
                err = -ENOMEM;
                goto out;
        }

        generic_req = aead_request_alloc(generic_tfm, GFP_KERNEL);
        if (!generic_req) {
                err = -ENOMEM;
                goto out;
        }

        /* Check the algorithm properties for consistency. */

        if (maxauthsize != crypto_aead_alg(generic_tfm)->maxauthsize) {
                pr_err("alg: aead: maxauthsize for %s (%u) doesn't match generic impl (%u)\n",
                       driver, maxauthsize,
                       crypto_aead_alg(generic_tfm)->maxauthsize);
                err = -EINVAL;
                goto out;
        }

        if (ivsize != crypto_aead_ivsize(generic_tfm)) {
                pr_err("alg: aead: ivsize for %s (%u) doesn't match generic impl (%u)\n",
                       driver, ivsize, crypto_aead_ivsize(generic_tfm));
                err = -EINVAL;
                goto out;
        }

        if (blocksize != crypto_aead_blocksize(generic_tfm)) {
                pr_err("alg: aead: blocksize for %s (%u) doesn't match generic impl (%u)\n",
                       driver, blocksize, crypto_aead_blocksize(generic_tfm));
                err = -EINVAL;
                goto out;
        }

        /*
         * Now generate test vectors using the generic implementation, and test
         * the other implementation against them.
         */

        maxkeysize = 0;
        for (i = 0; i < test_desc->suite.aead.count; i++)
                maxkeysize = max_t(unsigned int, maxkeysize,
                                   test_desc->suite.aead.vecs[i].klen);

        vec.key = kmalloc(maxkeysize, GFP_KERNEL);
        vec.iv = kmalloc(ivsize, GFP_KERNEL);
        vec.assoc = kmalloc(maxdatasize, GFP_KERNEL);
        vec.ptext = kmalloc(maxdatasize, GFP_KERNEL);
        vec.ctext = kmalloc(maxdatasize, GFP_KERNEL);
        if (!vec.key || !vec.iv || !vec.assoc || !vec.ptext || !vec.ctext) {
                err = -ENOMEM;
                goto out;
        }

        for (i = 0; i < fuzz_iterations * 8; i++) {
                generate_random_aead_testvec(generic_req, &vec,
                                             maxkeysize, maxdatasize,
                                             vec_name, sizeof(vec_name));
                generate_random_testvec_config(cfg, cfgname, sizeof(cfgname));

                err = test_aead_vec_cfg(driver, ENCRYPT, &vec, vec_name, cfg,
                                        req, tsgls);
                if (err)
                        goto out;
                err = test_aead_vec_cfg(driver, DECRYPT, &vec, vec_name, cfg,
                                        req, tsgls);
                if (err)
                        goto out;
                cond_resched();
        }
        err = 0;
out:
        kfree(cfg);
        kfree(vec.key);
        kfree(vec.iv);
        kfree(vec.assoc);
        kfree(vec.ptext);
        kfree(vec.ctext);
        crypto_free_aead(generic_tfm);
        aead_request_free(generic_req);
        return err;
}
#else /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
static int test_aead_vs_generic_impl(const char *driver,
                                     const struct alg_test_desc *test_desc,
                                     struct aead_request *req,
                                     struct cipher_test_sglists *tsgls)
{
        return 0;
}
#endif /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */

static int test_aead(const char *driver, int enc,
                     const struct aead_test_suite *suite,
                     struct aead_request *req,
                     struct cipher_test_sglists *tsgls)
{
        unsigned int i;
        int err;

        for (i = 0; i < suite->count; i++) {
                err = test_aead_vec(driver, enc, &suite->vecs[i], i, req,
                                    tsgls);
                if (err)
                        return err;
                cond_resched();
        }
        return 0;
}

static int alg_test_aead(const struct alg_test_desc *desc, const char *driver,
                         u32 type, u32 mask)
{
        const struct aead_test_suite *suite = &desc->suite.aead;
        struct crypto_aead *tfm;
        struct aead_request *req = NULL;
        struct cipher_test_sglists *tsgls = NULL;
        int err;

        if (suite->count <= 0) {
                pr_err("alg: aead: empty test suite for %s\n", driver);
                return -EINVAL;
        }

        tfm = crypto_alloc_aead(driver, type, mask);
        if (IS_ERR(tfm)) {
                pr_err("alg: aead: failed to allocate transform for %s: %ld\n",
                       driver, PTR_ERR(tfm));
                return PTR_ERR(tfm);
        }

        req = aead_request_alloc(tfm, GFP_KERNEL);
        if (!req) {
                pr_err("alg: aead: failed to allocate request for %s\n",
                       driver);
                err = -ENOMEM;
                goto out;
        }

        tsgls = alloc_cipher_test_sglists();
        if (!tsgls) {
                pr_err("alg: aead: failed to allocate test buffers for %s\n",
                       driver);
                err = -ENOMEM;
                goto out;
        }

        err = test_aead(driver, ENCRYPT, suite, req, tsgls);
        if (err)
                goto out;

        err = test_aead(driver, DECRYPT, suite, req, tsgls);
        if (err)
                goto out;

        err = test_aead_vs_generic_impl(driver, desc, req, tsgls);
out:
        free_cipher_test_sglists(tsgls);
        aead_request_free(req);
        crypto_free_aead(tfm);
        return err;
}

static int test_cipher(struct crypto_cipher *tfm, int enc,
                       const struct cipher_testvec *template,
                       unsigned int tcount)
{
        const char *algo = crypto_tfm_alg_driver_name(crypto_cipher_tfm(tfm));
        unsigned int i, j, k;
        char *q;
        const char *e;
        const char *input, *result;
        void *data;
        char *xbuf[XBUFSIZE];
        int ret = -ENOMEM;

        if (testmgr_alloc_buf(xbuf))
                goto out_nobuf;

        if (enc == ENCRYPT)
                e = "encryption";
        else
                e = "decryption";

        j = 0;
        for (i = 0; i < tcount; i++) {

                if (fips_enabled && template[i].fips_skip)
                        continue;

                input  = enc ? template[i].ptext : template[i].ctext;
                result = enc ? template[i].ctext : template[i].ptext;
                j++;

                ret = -EINVAL;
                if (WARN_ON(template[i].len > PAGE_SIZE))
                        goto out;

                data = xbuf[0];
                memcpy(data, input, template[i].len);

                crypto_cipher_clear_flags(tfm, ~0);
                if (template[i].wk)
                        crypto_cipher_set_flags(tfm, CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);

                ret = crypto_cipher_setkey(tfm, template[i].key,
                                           template[i].klen);
                if (ret) {
                        if (ret == template[i].setkey_error)
                                continue;
                        pr_err("alg: cipher: %s setkey failed on test vector %u; expected_error=%d, actual_error=%d, flags=%#x\n",
                               algo, j, template[i].setkey_error, ret,
                               crypto_cipher_get_flags(tfm));
                        goto out;
                }
                if (template[i].setkey_error) {
                        pr_err("alg: cipher: %s setkey unexpectedly succeeded on test vector %u; expected_error=%d\n",
                               algo, j, template[i].setkey_error);
                        ret = -EINVAL;
                        goto out;
                }

                for (k = 0; k < template[i].len;
                     k += crypto_cipher_blocksize(tfm)) {
                        if (enc)
                                crypto_cipher_encrypt_one(tfm, data + k,
                                                          data + k);
                        else
                                crypto_cipher_decrypt_one(tfm, data + k,
                                                          data + k);
                }

                q = data;
                if (memcmp(q, result, template[i].len)) {
                        printk(KERN_ERR "alg: cipher: Test %d failed "
                               "on %s for %s\n", j, e, algo);
                        hexdump(q, template[i].len);
                        ret = -EINVAL;
                        goto out;
                }
        }

        ret = 0;

out:
        testmgr_free_buf(xbuf);
out_nobuf:
        return ret;
}

static int test_skcipher_vec_cfg(const char *driver, int enc,
                                 const struct cipher_testvec *vec,
                                 const char *vec_name,
                                 const struct testvec_config *cfg,
                                 struct skcipher_request *req,
                                 struct cipher_test_sglists *tsgls)
{
        struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
        const unsigned int alignmask = crypto_skcipher_alignmask(tfm);
        const unsigned int ivsize = crypto_skcipher_ivsize(tfm);
        const u32 req_flags = CRYPTO_TFM_REQ_MAY_BACKLOG | cfg->req_flags;
        const char *op = enc ? "encryption" : "decryption";
        DECLARE_CRYPTO_WAIT(wait);
        u8 _iv[3 * (MAX_ALGAPI_ALIGNMASK + 1) + MAX_IVLEN];
        u8 *iv = PTR_ALIGN(&_iv[0], 2 * (MAX_ALGAPI_ALIGNMASK + 1)) +
                 cfg->iv_offset +
                 (cfg->iv_offset_relative_to_alignmask ? alignmask : 0);
        struct kvec input;
        int err;

        /* Set the key */
        if (vec->wk)
                crypto_skcipher_set_flags(tfm, CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
        else
                crypto_skcipher_clear_flags(tfm,
                                            CRYPTO_TFM_REQ_FORBID_WEAK_KEYS);
        err = crypto_skcipher_setkey(tfm, vec->key, vec->klen);
        if (err) {
                if (err == vec->setkey_error)
                        return 0;
                pr_err("alg: skcipher: %s setkey failed on test vector %s; expected_error=%d, actual_error=%d, flags=%#x\n",
                       driver, vec_name, vec->setkey_error, err,
                       crypto_skcipher_get_flags(tfm));
                return err;
        }
        if (vec->setkey_error) {
                pr_err("alg: skcipher: %s setkey unexpectedly succeeded on test vector %s; expected_error=%d\n",
                       driver, vec_name, vec->setkey_error);
                return -EINVAL;
        }

        /* The IV must be copied to a buffer, as the algorithm may modify it */
        if (ivsize) {
                if (WARN_ON(ivsize > MAX_IVLEN))
                        return -EINVAL;
                if (vec->generates_iv && !enc)
                        memcpy(iv, vec->iv_out, ivsize);
                else if (vec->iv)
                        memcpy(iv, vec->iv, ivsize);
                else
                        memset(iv, 0, ivsize);
        } else {
                if (vec->generates_iv) {
                        pr_err("alg: skcipher: %s has ivsize=0 but test vector %s generates IV!\n",
                               driver, vec_name);
                        return -EINVAL;
                }
                iv = NULL;
        }

        /* Build the src/dst scatterlists */
        input.iov_base = enc ? (void *)vec->ptext : (void *)vec->ctext;
        input.iov_len = vec->len;
        err = build_cipher_test_sglists(tsgls, cfg, alignmask,
                                        vec->len, vec->len, &input, 1);
        if (err) {
                pr_err("alg: skcipher: %s %s: error preparing scatterlists for test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return err;
        }

        /* Do the actual encryption or decryption */
        testmgr_poison(req->__ctx, crypto_skcipher_reqsize(tfm));
        skcipher_request_set_callback(req, req_flags, crypto_req_done, &wait);
        skcipher_request_set_crypt(req, tsgls->src.sgl_ptr, tsgls->dst.sgl_ptr,
                                   vec->len, iv);
        if (cfg->nosimd)
                crypto_disable_simd_for_test();
        err = enc ? crypto_skcipher_encrypt(req) : crypto_skcipher_decrypt(req);
        if (cfg->nosimd)
                crypto_reenable_simd_for_test();
        err = crypto_wait_req(err, &wait);

        /* Check that the algorithm didn't overwrite things it shouldn't have */
        if (req->cryptlen != vec->len ||
            req->iv != iv ||
            req->src != tsgls->src.sgl_ptr ||
            req->dst != tsgls->dst.sgl_ptr ||
            crypto_skcipher_reqtfm(req) != tfm ||
            req->base.complete != crypto_req_done ||
            req->base.flags != req_flags ||
            req->base.data != &wait) {
                pr_err("alg: skcipher: %s %s corrupted request struct on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                if (req->cryptlen != vec->len)
                        pr_err("alg: skcipher: changed 'req->cryptlen'\n");
                if (req->iv != iv)
                        pr_err("alg: skcipher: changed 'req->iv'\n");
                if (req->src != tsgls->src.sgl_ptr)
                        pr_err("alg: skcipher: changed 'req->src'\n");
                if (req->dst != tsgls->dst.sgl_ptr)
                        pr_err("alg: skcipher: changed 'req->dst'\n");
                if (crypto_skcipher_reqtfm(req) != tfm)
                        pr_err("alg: skcipher: changed 'req->base.tfm'\n");
                if (req->base.complete != crypto_req_done)
                        pr_err("alg: skcipher: changed 'req->base.complete'\n");
                if (req->base.flags != req_flags)
                        pr_err("alg: skcipher: changed 'req->base.flags'\n");
                if (req->base.data != &wait)
                        pr_err("alg: skcipher: changed 'req->base.data'\n");
                return -EINVAL;
        }
        if (is_test_sglist_corrupted(&tsgls->src)) {
                pr_err("alg: skcipher: %s %s corrupted src sgl on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return -EINVAL;
        }
        if (tsgls->dst.sgl_ptr != tsgls->src.sgl &&
            is_test_sglist_corrupted(&tsgls->dst)) {
                pr_err("alg: skcipher: %s %s corrupted dst sgl on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return -EINVAL;
        }

        /* Check for success or failure */
        if (err) {
                if (err == vec->crypt_error)
                        return 0;
                pr_err("alg: skcipher: %s %s failed on test vector %s; expected_error=%d, actual_error=%d, cfg=\"%s\"\n",
                       driver, op, vec_name, vec->crypt_error, err, cfg->name);
                return err;
        }
        if (vec->crypt_error) {
                pr_err("alg: skcipher: %s %s unexpectedly succeeded on test vector %s; expected_error=%d, cfg=\"%s\"\n",
                       driver, op, vec_name, vec->crypt_error, cfg->name);
                return -EINVAL;
        }

        /* Check for the correct output (ciphertext or plaintext) */
        err = verify_correct_output(&tsgls->dst, enc ? vec->ctext : vec->ptext,
                                    vec->len, 0, true);
        if (err == -EOVERFLOW) {
                pr_err("alg: skcipher: %s %s overran dst buffer on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return err;
        }
        if (err) {
                pr_err("alg: skcipher: %s %s test failed (wrong result) on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                return err;
        }

        /* If applicable, check that the algorithm generated the correct IV */
        if (vec->iv_out && memcmp(iv, vec->iv_out, ivsize) != 0) {
                pr_err("alg: skcipher: %s %s test failed (wrong output IV) on test vector %s, cfg=\"%s\"\n",
                       driver, op, vec_name, cfg->name);
                hexdump(iv, ivsize);
                return -EINVAL;
        }

        return 0;
}

static int test_skcipher_vec(const char *driver, int enc,
                             const struct cipher_testvec *vec,
                             unsigned int vec_num,
                             struct skcipher_request *req,
                             struct cipher_test_sglists *tsgls)
{
        char vec_name[16];
        unsigned int i;
        int err;

        if (fips_enabled && vec->fips_skip)
                return 0;

        sprintf(vec_name, "%u", vec_num);

        for (i = 0; i < ARRAY_SIZE(default_cipher_testvec_configs); i++) {
                err = test_skcipher_vec_cfg(driver, enc, vec, vec_name,
                                            &default_cipher_testvec_configs[i],
                                            req, tsgls);
                if (err)
                        return err;
        }

#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
        if (!noextratests) {
                struct testvec_config cfg;
                char cfgname[TESTVEC_CONFIG_NAMELEN];

                for (i = 0; i < fuzz_iterations; i++) {
                        generate_random_testvec_config(&cfg, cfgname,
                                                       sizeof(cfgname));
                        err = test_skcipher_vec_cfg(driver, enc, vec, vec_name,
                                                    &cfg, req, tsgls);
                        if (err)
                                return err;
                        cond_resched();
                }
        }
#endif
        return 0;
}

#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
/*
 * Generate a symmetric cipher test vector from the given implementation.
 * Assumes the buffers in 'vec' were already allocated.
 */
static void generate_random_cipher_testvec(struct skcipher_request *req,
                                           struct cipher_testvec *vec,
                                           unsigned int maxdatasize,
                                           char *name, size_t max_namelen)
{
        struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
        const unsigned int maxkeysize = tfm->keysize;
        const unsigned int ivsize = crypto_skcipher_ivsize(tfm);
        struct scatterlist src, dst;
        u8 iv[MAX_IVLEN];
        DECLARE_CRYPTO_WAIT(wait);

        /* Key: length in [0, maxkeysize], but usually choose maxkeysize */
        vec->klen = maxkeysize;
        if (prandom_u32() % 4 == 0)
                vec->klen = prandom_u32() % (maxkeysize + 1);
        generate_random_bytes((u8 *)vec->key, vec->klen);
        vec->setkey_error = crypto_skcipher_setkey(tfm, vec->key, vec->klen);

        /* IV */
        generate_random_bytes((u8 *)vec->iv, ivsize);

        /* Plaintext */
        vec->len = generate_random_length(maxdatasize);
        generate_random_bytes((u8 *)vec->ptext, vec->len);

        /* If the key couldn't be set, no need to continue to encrypt. */
        if (vec->setkey_error)
                goto done;

        /* Ciphertext */
        sg_init_one(&src, vec->ptext, vec->len);
        sg_init_one(&dst, vec->ctext, vec->len);
        memcpy(iv, vec->iv, ivsize);
        skcipher_request_set_callback(req, 0, crypto_req_done, &wait);
        skcipher_request_set_crypt(req, &src, &dst, vec->len, iv);
        vec->crypt_error = crypto_wait_req(crypto_skcipher_encrypt(req), &wait);
done:
        snprintf(name, max_namelen, "\"random: len=%u klen=%u\"",
                 vec->len, vec->klen);
}

/*
 * Test the skcipher algorithm represented by @req against the corresponding
 * generic implementation, if one is available.
 */
static int test_skcipher_vs_generic_impl(const char *driver,
                                         const char *generic_driver,
                                         struct skcipher_request *req,
                                         struct cipher_test_sglists *tsgls)
{
        struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
        const unsigned int ivsize = crypto_skcipher_ivsize(tfm);
        const unsigned int blocksize = crypto_skcipher_blocksize(tfm);
        const unsigned int maxdatasize = (2 * PAGE_SIZE) - TESTMGR_POISON_LEN;
        const char *algname = crypto_skcipher_alg(tfm)->base.cra_name;
        char _generic_driver[CRYPTO_MAX_ALG_NAME];
        struct crypto_skcipher *generic_tfm = NULL;
        struct skcipher_request *generic_req = NULL;
        unsigned int i;
        struct cipher_testvec vec = { 0 };
        char vec_name[64];
        struct testvec_config *cfg;
        char cfgname[TESTVEC_CONFIG_NAMELEN];
        int err;

        if (noextratests)
                return 0;

        /* Keywrap isn't supported here yet as it handles its IV differently. */
        if (strncmp(algname, "kw(", 3) == 0)
                return 0;

        if (!generic_driver) { /* Use default naming convention? */
                err = build_generic_driver_name(algname, _generic_driver);
                if (err)
                        return err;
                generic_driver = _generic_driver;
        }

        if (strcmp(generic_driver, driver) == 0) /* Already the generic impl? */
                return 0;

        generic_tfm = crypto_alloc_skcipher(generic_driver, 0, 0);
        if (IS_ERR(generic_tfm)) {
                err = PTR_ERR(generic_tfm);
                if (err == -ENOENT) {
                        pr_warn("alg: skcipher: skipping comparison tests for %s because %s is unavailable\n",
                                driver, generic_driver);
                        return 0;
                }
                pr_err("alg: skcipher: error allocating %s (generic impl of %s): %d\n",
                       generic_driver, algname, err);
                return err;
        }

        cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
        if (!cfg) {
                err = -ENOMEM;
                goto out;
        }

        generic_req = skcipher_request_alloc(generic_tfm, GFP_KERNEL);
        if (!generic_req) {
                err = -ENOMEM;
                goto out;
        }

        /* Check the algorithm properties for consistency. */

        if (tfm->keysize != generic_tfm->keysize) {
                pr_err("alg: skcipher: max keysize for %s (%u) doesn't match generic impl (%u)\n",
                       driver, tfm->keysize, generic_tfm->keysize);
                err = -EINVAL;
                goto out;
        }

        if (ivsize != crypto_skcipher_ivsize(generic_tfm)) {
                pr_err("alg: skcipher: ivsize for %s (%u) doesn't match generic impl (%u)\n",
                       driver, ivsize, crypto_skcipher_ivsize(generic_tfm));
                err = -EINVAL;
                goto out;
        }

        if (blocksize != crypto_skcipher_blocksize(generic_tfm)) {
                pr_err("alg: skcipher: blocksize for %s (%u) doesn't match generic impl (%u)\n",
                       driver, blocksize,
                       crypto_skcipher_blocksize(generic_tfm));
                err = -EINVAL;
                goto out;
        }

        /*
         * Now generate test vectors using the generic implementation, and test
         * the other implementation against them.
         */

        vec.key = kmalloc(tfm->keysize, GFP_KERNEL);
        vec.iv = kmalloc(ivsize, GFP_KERNEL);
        vec.ptext = kmalloc(maxdatasize, GFP_KERNEL);
        vec.ctext = kmalloc(maxdatasize, GFP_KERNEL);
        if (!vec.key || !vec.iv || !vec.ptext || !vec.ctext) {
                err = -ENOMEM;
                goto out;
        }

        for (i = 0; i < fuzz_iterations * 8; i++) {
                generate_random_cipher_testvec(generic_req, &vec, maxdatasize,
                                               vec_name, sizeof(vec_name));
                generate_random_testvec_config(cfg, cfgname, sizeof(cfgname));

                err = test_skcipher_vec_cfg(driver, ENCRYPT, &vec, vec_name,
                                            cfg, req, tsgls);
                if (err)
                        goto out;
                err = test_skcipher_vec_cfg(driver, DECRYPT, &vec, vec_name,
                                            cfg, req, tsgls);
                if (err)
                        goto out;
                cond_resched();
        }
        err = 0;
out:
        kfree(cfg);
        kfree(vec.key);
        kfree(vec.iv);
        kfree(vec.ptext);
        kfree(vec.ctext);
        crypto_free_skcipher(generic_tfm);
        skcipher_request_free(generic_req);
        return err;
}
#else /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */
static int test_skcipher_vs_generic_impl(const char *driver,
                                         const char *generic_driver,
                                         struct skcipher_request *req,
                                         struct cipher_test_sglists *tsgls)
{
        return 0;
}
#endif /* !CONFIG_CRYPTO_MANAGER_EXTRA_TESTS */

static int test_skcipher(const char *driver, int enc,
                         const struct cipher_test_suite *suite,
                         struct skcipher_request *req,
                         struct cipher_test_sglists *tsgls)
{
        unsigned int i;
        int err;

        for (i = 0; i < suite->count; i++) {
                err = test_skcipher_vec(driver, enc, &suite->vecs[i], i, req,
                                        tsgls);
                if (err)
                        return err;
                cond_resched();
        }
        return 0;
}

static int alg_test_skcipher(const struct alg_test_desc *desc,
                             const char *driver, u32 type, u32 mask)
{
        const struct cipher_test_suite *suite = &desc->suite.cipher;
        struct crypto_skcipher *tfm;
        struct skcipher_request *req = NULL;
        struct cipher_test_sglists *tsgls = NULL;
        int err;

        if (suite->count <= 0) {
                pr_err("alg: skcipher: empty test suite for %s\n", driver);
                return -EINVAL;
        }

        tfm = crypto_alloc_skcipher(driver, type, mask);
        if (IS_ERR(tfm)) {
                pr_err("alg: skcipher: failed to allocate transform for %s: %ld\n",
                       driver, PTR_ERR(tfm));
                return PTR_ERR(tfm);
        }

        req = skcipher_request_alloc(tfm, GFP_KERNEL);
        if (!req) {
                pr_err("alg: skcipher: failed to allocate request for %s\n",
                       driver);
                err = -ENOMEM;
                goto out;
        }

        tsgls = alloc_cipher_test_sglists();
        if (!tsgls) {
                pr_err("alg: skcipher: failed to allocate test buffers for %s\n",
                       driver);
                err = -ENOMEM;
                goto out;
        }

        err = test_skcipher(driver, ENCRYPT, suite, req, tsgls);
        if (err)
                goto out;

        err = test_skcipher(driver, DECRYPT, suite, req, tsgls);
        if (err)
                goto out;

        err = test_skcipher_vs_generic_impl(driver, desc->generic_driver, req,
                                            tsgls);
out:
        free_cipher_test_sglists(tsgls);
        skcipher_request_free(req);
        crypto_free_skcipher(tfm);
        return err;
}

static int test_comp(struct crypto_comp *tfm,
                     const struct comp_testvec *ctemplate,
                     const struct comp_testvec *dtemplate,
                     int ctcount, int dtcount)
{
        const char *algo = crypto_tfm_alg_driver_name(crypto_comp_tfm(tfm));
        char *output, *decomp_output;
        unsigned int i;
        int ret;

        output = kmalloc(COMP_BUF_SIZE, GFP_KERNEL);
        if (!output)
                return -ENOMEM;

        decomp_output = kmalloc(COMP_BUF_SIZE, GFP_KERNEL);
        if (!decomp_output) {
                kfree(output);
                return -ENOMEM;
        }

        for (i = 0; i < ctcount; i++) {
                int ilen;
                unsigned int dlen = COMP_BUF_SIZE;

                memset(output, 0, COMP_BUF_SIZE);
                memset(decomp_output, 0, COMP_BUF_SIZE);

                ilen = ctemplate[i].inlen;
                ret = crypto_comp_compress(tfm, ctemplate[i].input,
                                           ilen, output, &dlen);
                if (ret) {
                        printk(KERN_ERR "alg: comp: compression failed "
                               "on test %d for %s: ret=%d\n", i + 1, algo,
                               -ret);
                        goto out;
                }

                ilen = dlen;
                dlen = COMP_BUF_SIZE;
                ret = crypto_comp_decompress(tfm, output,
                                             ilen, decomp_output, &dlen);
                if (ret) {
                        pr_err("alg: comp: compression failed: decompress: on test %d for %s failed: ret=%d\n",
                               i + 1, algo, -ret);
                        goto out;
                }

                if (dlen != ctemplate[i].inlen) {
                        printk(KERN_ERR "alg: comp: Compression test %d "
                               "failed for %s: output len = %d\n", i + 1, algo,
                               dlen);
                        ret = -EINVAL;
                        goto out;
                }

                if (memcmp(decomp_output, ctemplate[i].input,
                           ctemplate[i].inlen)) {
                        pr_err("alg: comp: compression failed: output differs: on test %d for %s\n",
                               i + 1, algo);
                        hexdump(decomp_output, dlen);
                        ret = -EINVAL;
                        goto out;
                }
        }

        for (i = 0; i < dtcount; i++) {
                int ilen;
                unsigned int dlen = COMP_BUF_SIZE;

                memset(decomp_output, 0, COMP_BUF_SIZE);

                ilen = dtemplate[i].inlen;
                ret = crypto_comp_decompress(tfm, dtemplate[i].input,
                                             ilen, decomp_output, &dlen);
                if (ret) {
                        printk(KERN_ERR "alg: comp: decompression failed "
                               "on test %d for %s: ret=%d\n", i + 1, algo,
                               -ret);
                        goto out;
                }

                if (dlen != dtemplate[i].outlen) {
                        printk(KERN_ERR "alg: comp: Decompression test %d "
                               "failed for %s: output len = %d\n", i + 1, algo,
                               dlen);
                        ret = -EINVAL;
                        goto out;
                }

                if (memcmp(decomp_output, dtemplate[i].output, dlen)) {
                        printk(KERN_ERR "alg: comp: Decompression test %d "
                               "failed for %s\n", i + 1, algo);
                        hexdump(decomp_output, dlen);
                        ret = -EINVAL;
                        goto out;
                }
        }

        ret = 0;

out:
        kfree(decomp_output);
        kfree(output);
        return ret;
}

static int test_acomp(struct crypto_acomp *tfm,
                              const struct comp_testvec *ctemplate,
                      const struct comp_testvec *dtemplate,
                      int ctcount, int dtcount)
{
        const char *algo = crypto_tfm_alg_driver_name(crypto_acomp_tfm(tfm));
        unsigned int i;
        char *output, *decomp_out;
        int ret;
        struct scatterlist src, dst;
        struct acomp_req *req;
        struct crypto_wait wait;

        output = kmalloc(COMP_BUF_SIZE, GFP_KERNEL);
        if (!output)
                return -ENOMEM;

        decomp_out = kmalloc(COMP_BUF_SIZE, GFP_KERNEL);
        if (!decomp_out) {
                kfree(output);
                return -ENOMEM;
        }

        for (i = 0; i < ctcount; i++) {
                unsigned int dlen = COMP_BUF_SIZE;
                int ilen = ctemplate[i].inlen;
                void *input_vec;

                input_vec = kmemdup(ctemplate[i].input, ilen, GFP_KERNEL);
                if (!input_vec) {
                        ret = -ENOMEM;
                        goto out;
                }

                memset(output, 0, dlen);
                crypto_init_wait(&wait);
                sg_init_one(&src, input_vec, ilen);
                sg_init_one(&dst, output, dlen);

                req = acomp_request_alloc(tfm);
                if (!req) {
                        pr_err("alg: acomp: request alloc failed for %s\n",
                               algo);
                        kfree(input_vec);
                        ret = -ENOMEM;
                        goto out;
                }

                acomp_request_set_params(req, &src, &dst, ilen, dlen);
                acomp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
                                           crypto_req_done, &wait);

                ret = crypto_wait_req(crypto_acomp_compress(req), &wait);
                if (ret) {
                        pr_err("alg: acomp: compression failed on test %d for %s: ret=%d\n",
                               i + 1, algo, -ret);
                        kfree(input_vec);
                        acomp_request_free(req);
                        goto out;
                }

                ilen = req->dlen;
                dlen = COMP_BUF_SIZE;
                sg_init_one(&src, output, ilen);
                sg_init_one(&dst, decomp_out, dlen);
                crypto_init_wait(&wait);
                acomp_request_set_params(req, &src, &dst, ilen, dlen);

                ret = crypto_wait_req(crypto_acomp_decompress(req), &wait);
                if (ret) {
                        pr_err("alg: acomp: compression failed on test %d for %s: ret=%d\n",
                               i + 1, algo, -ret);
                        kfree(input_vec);
                        acomp_request_free(req);
                        goto out;
                }

                if (req->dlen != ctemplate[i].inlen) {
                        pr_err("alg: acomp: Compression test %d failed for %s: output len = %d\n",
                               i + 1, algo, req->dlen);
                        ret = -EINVAL;
                        kfree(input_vec);
                        acomp_request_free(req);
                        goto out;
                }

                if (memcmp(input_vec, decomp_out, req->dlen)) {
                        pr_err("alg: acomp: Compression test %d failed for %s\n",
                               i + 1, algo);
                        hexdump(output, req->dlen);
                        ret = -EINVAL;
                        kfree(input_vec);
                        acomp_request_free(req);
                        goto out;
                }

                kfree(input_vec);
                acomp_request_free(req);
        }

        for (i = 0; i < dtcount; i++) {
                unsigned int dlen = COMP_BUF_SIZE;
                int ilen = dtemplate[i].inlen;
                void *input_vec;

                input_vec = kmemdup(dtemplate[i].input, ilen, GFP_KERNEL);
                if (!input_vec) {
                        ret = -ENOMEM;
                        goto out;
                }

                memset(output, 0, dlen);
                crypto_init_wait(&wait);
                sg_init_one(&src, input_vec, ilen);
                sg_init_one(&dst, output, dlen);

                req = acomp_request_alloc(tfm);
                if (!req) {
                        pr_err("alg: acomp: request alloc failed for %s\n",
                               algo);
                        kfree(input_vec);
                        ret = -ENOMEM;
                        goto out;
                }

                acomp_request_set_params(req, &src, &dst, ilen, dlen);
                acomp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
                                           crypto_req_done, &wait);

                ret = crypto_wait_req(crypto_acomp_decompress(req), &wait);
                if (ret) {
                        pr_err("alg: acomp: decompression failed on test %d for %s: ret=%d\n",
                               i + 1, algo, -ret);
                        kfree(input_vec);
                        acomp_request_free(req);
                        goto out;
                }

                if (req->dlen != dtemplate[i].outlen) {
                        pr_err("alg: acomp: Decompression test %d failed for %s: output len = %d\n",
                               i + 1, algo, req->dlen);
                        ret = -EINVAL;
                        kfree(input_vec);
                        acomp_request_free(req);
                        goto out;
                }

                if (memcmp(output, dtemplate[i].output, req->dlen)) {
                        pr_err("alg: acomp: Decompression test %d failed for %s\n",
                               i + 1, algo);
                        hexdump(output, req->dlen);
                        ret = -EINVAL;
                        kfree(input_vec);
                        acomp_request_free(req);
                        goto out;
                }

                kfree(input_vec);
                acomp_request_free(req);
        }

        ret = 0;

out:
        kfree(decomp_out);
        kfree(output);
        return ret;
}

static int test_cprng(struct crypto_rng *tfm,
                      const struct cprng_testvec *template,
                      unsigned int tcount)
{
        const char *algo = crypto_tfm_alg_driver_name(crypto_rng_tfm(tfm));
        int err = 0, i, j, seedsize;
        u8 *seed;
        char result[32];

        seedsize = crypto_rng_seedsize(tfm);

        seed = kmalloc(seedsize, GFP_KERNEL);
        if (!seed) {
                printk(KERN_ERR "alg: cprng: Failed to allocate seed space "
                       "for %s\n", algo);
                return -ENOMEM;
        }

        for (i = 0; i < tcount; i++) {
                memset(result, 0, 32);

                memcpy(seed, template[i].v, template[i].vlen);
                memcpy(seed + template[i].vlen, template[i].key,
                       template[i].klen);
                memcpy(seed + template[i].vlen + template[i].klen,
                       template[i].dt, template[i].dtlen);

                err = crypto_rng_reset(tfm, seed, seedsize);
                if (err) {
                        printk(KERN_ERR "alg: cprng: Failed to reset rng "
                               "for %s\n", algo);
                        goto out;
                }

                for (j = 0; j < template[i].loops; j++) {
                        err = crypto_rng_get_bytes(tfm, result,
                                                   template[i].rlen);
                        if (err < 0) {
                                printk(KERN_ERR "alg: cprng: Failed to obtain "
                                       "the correct amount of random data for "
                                       "%s (requested %d)\n", algo,
                                       template[i].rlen);
                                goto out;
                        }
                }

                err = memcmp(result, template[i].result,
                             template[i].rlen);
                if (err) {
                        printk(KERN_ERR "alg: cprng: Test %d failed for %s\n",
                               i, algo);
                        hexdump(result, template[i].rlen);
                        err = -EINVAL;
                        goto out;
                }
        }

out:
        kfree(seed);
        return err;
}

static int alg_test_cipher(const struct alg_test_desc *desc,
                           const char *driver, u32 type, u32 mask)
{
        const struct cipher_test_suite *suite = &desc->suite.cipher;
        struct crypto_cipher *tfm;
        int err;

        tfm = crypto_alloc_cipher(driver, type, mask);
        if (IS_ERR(tfm)) {
                printk(KERN_ERR "alg: cipher: Failed to load transform for "
                       "%s: %ld\n", driver, PTR_ERR(tfm));
                return PTR_ERR(tfm);
        }

        err = test_cipher(tfm, ENCRYPT, suite->vecs, suite->count);
        if (!err)
                err = test_cipher(tfm, DECRYPT, suite->vecs, suite->count);

        crypto_free_cipher(tfm);
        return err;
}

static int alg_test_comp(const struct alg_test_desc *desc, const char *driver,
                         u32 type, u32 mask)
{
        struct crypto_comp *comp;
        struct crypto_acomp *acomp;
        int err;
        u32 algo_type = type & CRYPTO_ALG_TYPE_ACOMPRESS_MASK;

        if (algo_type == CRYPTO_ALG_TYPE_ACOMPRESS) {
                acomp = crypto_alloc_acomp(driver, type, mask);
                if (IS_ERR(acomp)) {
                        pr_err("alg: acomp: Failed to load transform for %s: %ld\n",
                               driver, PTR_ERR(acomp));
                        return PTR_ERR(acomp);
                }
                err = test_acomp(acomp, desc->suite.comp.comp.vecs,
                                 desc->suite.comp.decomp.vecs,
                                 desc->suite.comp.comp.count,
                                 desc->suite.comp.decomp.count);
                crypto_free_acomp(acomp);
        } else {
                comp = crypto_alloc_comp(driver, type, mask);
                if (IS_ERR(comp)) {
                        pr_err("alg: comp: Failed to load transform for %s: %ld\n",
                               driver, PTR_ERR(comp));
                        return PTR_ERR(comp);
                }

                err = test_comp(comp, desc->suite.comp.comp.vecs,
                                desc->suite.comp.decomp.vecs,
                                desc->suite.comp.comp.count,
                                desc->suite.comp.decomp.count);

                crypto_free_comp(comp);
        }
        return err;
}

static int alg_test_crc32c(const struct alg_test_desc *desc,
                           const char *driver, u32 type, u32 mask)
{
        struct crypto_shash *tfm;
        __le32 val;
        int err;

        err = alg_test_hash(desc, driver, type, mask);
        if (err)
                return err;

        tfm = crypto_alloc_shash(driver, type, mask);
        if (IS_ERR(tfm)) {
                if (PTR_ERR(tfm) == -ENOENT) {
                        /*
                         * This crc32c implementation is only available through
                         * ahash API, not the shash API, so the remaining part
                         * of the test is not applicable to it.
                         */
                        return 0;
                }
                printk(KERN_ERR "alg: crc32c: Failed to load transform for %s: "
                       "%ld\n", driver, PTR_ERR(tfm));
                return PTR_ERR(tfm);
        }

        do {
                SHASH_DESC_ON_STACK(shash, tfm);
                u32 *ctx = (u32 *)shash_desc_ctx(shash);

                shash->tfm = tfm;

                *ctx = 420553207;
                err = crypto_shash_final(shash, (u8 *)&val);
                if (err) {
                        printk(KERN_ERR "alg: crc32c: Operation failed for "
                               "%s: %d\n", driver, err);
                        break;
                }

                if (val != cpu_to_le32(~420553207)) {
                        pr_err("alg: crc32c: Test failed for %s: %u\n",
                               driver, le32_to_cpu(val));
                        err = -EINVAL;
                }
        } while (0);

        crypto_free_shash(tfm);

        return err;
}

static int alg_test_cprng(const struct alg_test_desc *desc, const char *driver,
                          u32 type, u32 mask)
{
        struct crypto_rng *rng;
        int err;

        rng = crypto_alloc_rng(driver, type, mask);
        if (IS_ERR(rng)) {
                printk(KERN_ERR "alg: cprng: Failed to load transform for %s: "
                       "%ld\n", driver, PTR_ERR(rng));
                return PTR_ERR(rng);
        }

        err = test_cprng(rng, desc->suite.cprng.vecs, desc->suite.cprng.count);

        crypto_free_rng(rng);

        return err;
}


static int drbg_cavs_test(const struct drbg_testvec *test, int pr,
                          const char *driver, u32 type, u32 mask)
{
        int ret = -EAGAIN;
        struct crypto_rng *drng;
        struct drbg_test_data test_data;
        struct drbg_string addtl, pers, testentropy;
        unsigned char *buf = kzalloc(test->expectedlen, GFP_KERNEL);

        if (!buf)
                return -ENOMEM;

        drng = crypto_alloc_rng(driver, type, mask);
        if (IS_ERR(drng)) {
                printk(KERN_ERR "alg: drbg: could not allocate DRNG handle for "
                       "%s\n", driver);
                kzfree(buf);
                return -ENOMEM;
        }

        test_data.testentropy = &testentropy;
        drbg_string_fill(&testentropy, test->entropy, test->entropylen);
        drbg_string_fill(&pers, test->pers, test->perslen);
        ret = crypto_drbg_reset_test(drng, &pers, &test_data);
        if (ret) {
                printk(KERN_ERR "alg: drbg: Failed to reset rng\n");
                goto outbuf;
        }

        drbg_string_fill(&addtl, test->addtla, test->addtllen);
        if (pr) {
                drbg_string_fill(&testentropy, test->entpra, test->entprlen);
                ret = crypto_drbg_get_bytes_addtl_test(drng,
                        buf, test->expectedlen, &addtl, &test_data);
        } else {
                ret = crypto_drbg_get_bytes_addtl(drng,
                        buf, test->expectedlen, &addtl);
        }
        if (ret < 0) {
                printk(KERN_ERR "alg: drbg: could not obtain random data for "
                       "driver %s\n", driver);
                goto outbuf;
        }

        drbg_string_fill(&addtl, test->addtlb, test->addtllen);
        if (pr) {
                drbg_string_fill(&testentropy, test->entprb, test->entprlen);
                ret = crypto_drbg_get_bytes_addtl_test(drng,
                        buf, test->expectedlen, &addtl, &test_data);
        } else {
                ret = crypto_drbg_get_bytes_addtl(drng,
                        buf, test->expectedlen, &addtl);
        }
        if (ret < 0) {
                printk(KERN_ERR "alg: drbg: could not obtain random data for "
                       "driver %s\n", driver);
                goto outbuf;
        }

        ret = memcmp(test->expected, buf, test->expectedlen);

outbuf:
        crypto_free_rng(drng);
        kzfree(buf);
        return ret;
}


static int alg_test_drbg(const struct alg_test_desc *desc, const char *driver,
                         u32 type, u32 mask)
{
        int err = 0;
        int pr = 0;
        int i = 0;
        const struct drbg_testvec *template = desc->suite.drbg.vecs;
        unsigned int tcount = desc->suite.drbg.count;

        if (0 == memcmp(driver, "drbg_pr_", 8))
                pr = 1;

        for (i = 0; i < tcount; i++) {
                err = drbg_cavs_test(&template[i], pr, driver, type, mask);
                if (err) {
                        printk(KERN_ERR "alg: drbg: Test %d failed for %s\n",
                               i, driver);
                        err = -EINVAL;
                        break;
                }
        }
        return err;

}

static int do_test_kpp(struct crypto_kpp *tfm, const struct kpp_testvec *vec,
                       const char *alg)
{
        struct kpp_request *req;
        void *input_buf = NULL;
        void *output_buf = NULL;
        void *a_public = NULL;
        void *a_ss = NULL;
        void *shared_secret = NULL;
        struct crypto_wait wait;
        unsigned int out_len_max;
        int err = -ENOMEM;
        struct scatterlist src, dst;

        req = kpp_request_alloc(tfm, GFP_KERNEL);
        if (!req)
                return err;

        crypto_init_wait(&wait);

        err = crypto_kpp_set_secret(tfm, vec->secret, vec->secret_size);
        if (err < 0)
                goto free_req;

        out_len_max = crypto_kpp_maxsize(tfm);
        output_buf = kzalloc(out_len_max, GFP_KERNEL);
        if (!output_buf) {
                err = -ENOMEM;
                goto free_req;
        }

        /* Use appropriate parameter as base */
        kpp_request_set_input(req, NULL, 0);
        sg_init_one(&dst, output_buf, out_len_max);
        kpp_request_set_output(req, &dst, out_len_max);
        kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
                                 crypto_req_done, &wait);

        /* Compute party A's public key */
        err = crypto_wait_req(crypto_kpp_generate_public_key(req), &wait);
        if (err) {
                pr_err("alg: %s: Party A: generate public key test failed. err %d\n",
                       alg, err);
                goto free_output;
        }

        if (vec->genkey) {
                /* Save party A's public key */
                a_public = kmemdup(sg_virt(req->dst), out_len_max, GFP_KERNEL);
                if (!a_public) {
                        err = -ENOMEM;
                        goto free_output;
                }
        } else {
                /* Verify calculated public key */
                if (memcmp(vec->expected_a_public, sg_virt(req->dst),
                           vec->expected_a_public_size)) {
                        pr_err("alg: %s: Party A: generate public key test failed. Invalid output\n",
                               alg);
                        err = -EINVAL;
                        goto free_output;
                }
        }

        /* Calculate shared secret key by using counter part (b) public key. */
        input_buf = kmemdup(vec->b_public, vec->b_public_size, GFP_KERNEL);
        if (!input_buf) {
                err = -ENOMEM;
                goto free_output;
        }

        sg_init_one(&src, input_buf, vec->b_public_size);
        sg_init_one(&dst, output_buf, out_len_max);
        kpp_request_set_input(req, &src, vec->b_public_size);
        kpp_request_set_output(req, &dst, out_len_max);
        kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
                                 crypto_req_done, &wait);
        err = crypto_wait_req(crypto_kpp_compute_shared_secret(req), &wait);
        if (err) {
                pr_err("alg: %s: Party A: compute shared secret test failed. err %d\n",
                       alg, err);
                goto free_all;
        }

        if (vec->genkey) {
                /* Save the shared secret obtained by party A */
                a_ss = kmemdup(sg_virt(req->dst), vec->expected_ss_size, GFP_KERNEL);
                if (!a_ss) {
                        err = -ENOMEM;
                        goto free_all;
                }

                /*
                 * Calculate party B's shared secret by using party A's
                 * public key.
                 */
                err = crypto_kpp_set_secret(tfm, vec->b_secret,
                                            vec->b_secret_size);
                if (err < 0)
                        goto free_all;

                sg_init_one(&src, a_public, vec->expected_a_public_size);
                sg_init_one(&dst, output_buf, out_len_max);
                kpp_request_set_input(req, &src, vec->expected_a_public_size);
                kpp_request_set_output(req, &dst, out_len_max);
                kpp_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
                                         crypto_req_done, &wait);
                err = crypto_wait_req(crypto_kpp_compute_shared_secret(req),
                                      &wait);
                if (err) {
                        pr_err("alg: %s: Party B: compute shared secret failed. err %d\n",
                               alg, err);
                        goto free_all;
                }

                shared_secret = a_ss;
        } else {
                shared_secret = (void *)vec->expected_ss;
        }

        /*
         * verify shared secret from which the user will derive
         * secret key by executing whatever hash it has chosen
         */
        if (memcmp(shared_secret, sg_virt(req->dst),
                   vec->expected_ss_size)) {
                pr_err("alg: %s: compute shared secret test failed. Invalid output\n",
                       alg);
                err = -EINVAL;
        }

free_all:
        kfree(a_ss);
        kfree(input_buf);
free_output:
        kfree(a_public);
        kfree(output_buf);
free_req:
        kpp_request_free(req);
        return err;
}

static int test_kpp(struct crypto_kpp *tfm, const char *alg,
                    const struct kpp_testvec *vecs, unsigned int tcount)
{
        int ret, i;

        for (i = 0; i < tcount; i++) {
                ret = do_test_kpp(tfm, vecs++, alg);
                if (ret) {
                        pr_err("alg: %s: test failed on vector %d, err=%d\n",
                               alg, i + 1, ret);
                        return ret;
                }
        }
        return 0;
}

static int alg_test_kpp(const struct alg_test_desc *desc, const char *driver,
                        u32 type, u32 mask)
{
        struct crypto_kpp *tfm;
        int err = 0;

        tfm = crypto_alloc_kpp(driver, type, mask);
        if (IS_ERR(tfm)) {
                pr_err("alg: kpp: Failed to load tfm for %s: %ld\n",
                       driver, PTR_ERR(tfm));
                return PTR_ERR(tfm);
        }
        if (desc->suite.kpp.vecs)
                err = test_kpp(tfm, desc->alg, desc->suite.kpp.vecs,
                               desc->suite.kpp.count);

        crypto_free_kpp(tfm);
        return err;
}

static u8 *test_pack_u32(u8 *dst, u32 val)
{
        memcpy(dst, &val, sizeof(val));
        return dst + sizeof(val);
}

static int test_akcipher_one(struct crypto_akcipher *tfm,
                             const struct akcipher_testvec *vecs)
{
        char *xbuf[XBUFSIZE];
        struct akcipher_request *req;
        void *outbuf_enc = NULL;
        void *outbuf_dec = NULL;
        struct crypto_wait wait;
        unsigned int out_len_max, out_len = 0;
        int err = -ENOMEM;
        struct scatterlist src, dst, src_tab[3];
        const char *m, *c;
        unsigned int m_size, c_size;
        const char *op;
        u8 *key, *ptr;

        if (testmgr_alloc_buf(xbuf))
                return err;

        req = akcipher_request_alloc(tfm, GFP_KERNEL);
        if (!req)
                goto free_xbuf;

        crypto_init_wait(&wait);

        key = kmalloc(vecs->key_len + sizeof(u32) * 2 + vecs->param_len,
                      GFP_KERNEL);
        if (!key)
                goto free_xbuf;
        memcpy(key, vecs->key, vecs->key_len);
        ptr = key + vecs->key_len;
        ptr = test_pack_u32(ptr, vecs->algo);
        ptr = test_pack_u32(ptr, vecs->param_len);
        memcpy(ptr, vecs->params, vecs->param_len);

        if (vecs->public_key_vec)
                err = crypto_akcipher_set_pub_key(tfm, key, vecs->key_len);
        else
                err = crypto_akcipher_set_priv_key(tfm, key, vecs->key_len);
        if (err)
                goto free_req;

        /*
         * First run test which do not require a private key, such as
         * encrypt or verify.
         */
        err = -ENOMEM;
        out_len_max = crypto_akcipher_maxsize(tfm);
        outbuf_enc = kzalloc(out_len_max, GFP_KERNEL);
        if (!outbuf_enc)
                goto free_req;

        if (!vecs->siggen_sigver_test) {
                m = vecs->m;
                m_size = vecs->m_size;
                c = vecs->c;
                c_size = vecs->c_size;
                op = "encrypt";
        } else {
                /* Swap args so we could keep plaintext (digest)
                 * in vecs->m, and cooked signature in vecs->c.
                 */
                m = vecs->c; /* signature */
                m_size = vecs->c_size;
                c = vecs->m; /* digest */
                c_size = vecs->m_size;
                op = "verify";
        }

        if (WARN_ON(m_size > PAGE_SIZE))
                goto free_all;
        memcpy(xbuf[0], m, m_size);

        sg_init_table(src_tab, 3);
        sg_set_buf(&src_tab[0], xbuf[0], 8);
        sg_set_buf(&src_tab[1], xbuf[0] + 8, m_size - 8);
        if (vecs->siggen_sigver_test) {
                if (WARN_ON(c_size > PAGE_SIZE))
                        goto free_all;
                memcpy(xbuf[1], c, c_size);
                sg_set_buf(&src_tab[2], xbuf[1], c_size);
                akcipher_request_set_crypt(req, src_tab, NULL, m_size, c_size);
        } else {
                sg_init_one(&dst, outbuf_enc, out_len_max);
                akcipher_request_set_crypt(req, src_tab, &dst, m_size,
                                           out_len_max);
        }
        akcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
                                      crypto_req_done, &wait);

        err = crypto_wait_req(vecs->siggen_sigver_test ?
                              /* Run asymmetric signature verification */
                              crypto_akcipher_verify(req) :
                              /* Run asymmetric encrypt */
                              crypto_akcipher_encrypt(req), &wait);
        if (err) {
                pr_err("alg: akcipher: %s test failed. err %d\n", op, err);
                goto free_all;
        }
        if (!vecs->siggen_sigver_test) {
                if (req->dst_len != c_size) {
                        pr_err("alg: akcipher: %s test failed. Invalid output len\n",
                               op);
                        err = -EINVAL;
                        goto free_all;
                }
                /* verify that encrypted message is equal to expected */
                if (memcmp(c, outbuf_enc, c_size) != 0) {
                        pr_err("alg: akcipher: %s test failed. Invalid output\n",
                               op);
                        hexdump(outbuf_enc, c_size);
                        err = -EINVAL;
                        goto free_all;
                }
        }

        /*
         * Don't invoke (decrypt or sign) test which require a private key
         * for vectors with only a public key.
         */
        if (vecs->public_key_vec) {
                err = 0;
                goto free_all;
        }
        outbuf_dec = kzalloc(out_len_max, GFP_KERNEL);
        if (!outbuf_dec) {
                err = -ENOMEM;
                goto free_all;
        }

        op = vecs->siggen_sigver_test ? "sign" : "decrypt";
        if (WARN_ON(c_size > PAGE_SIZE))
                goto free_all;
        memcpy(xbuf[0], c, c_size);

        sg_init_one(&src, xbuf[0], c_size);
        sg_init_one(&dst, outbuf_dec, out_len_max);
        crypto_init_wait(&wait);
        akcipher_request_set_crypt(req, &src, &dst, c_size, out_len_max);

        err = crypto_wait_req(vecs->siggen_sigver_test ?
                              /* Run asymmetric signature generation */
                              crypto_akcipher_sign(req) :
                              /* Run asymmetric decrypt */
                              crypto_akcipher_decrypt(req), &wait);
        if (err) {
                pr_err("alg: akcipher: %s test failed. err %d\n", op, err);
                goto free_all;
        }
        out_len = req->dst_len;
        if (out_len < m_size) {
                pr_err("alg: akcipher: %s test failed. Invalid output len %u\n",
                       op, out_len);
                err = -EINVAL;
                goto free_all;
        }
        /* verify that decrypted message is equal to the original msg */
        if (memchr_inv(outbuf_dec, 0, out_len - m_size) ||
            memcmp(m, outbuf_dec + out_len - m_size, m_size)) {
                pr_err("alg: akcipher: %s test failed. Invalid output\n", op);
                hexdump(outbuf_dec, out_len);
                err = -EINVAL;
        }
free_all:
        kfree(outbuf_dec);
        kfree(outbuf_enc);
free_req:
        akcipher_request_free(req);
        kfree(key);
free_xbuf:
        testmgr_free_buf(xbuf);
        return err;
}

static int test_akcipher(struct crypto_akcipher *tfm, const char *alg,
                         const struct akcipher_testvec *vecs,
                         unsigned int tcount)
{
        const char *algo =
                crypto_tfm_alg_driver_name(crypto_akcipher_tfm(tfm));
        int ret, i;

        for (i = 0; i < tcount; i++) {
                ret = test_akcipher_one(tfm, vecs++);
                if (!ret)
                        continue;

                pr_err("alg: akcipher: test %d failed for %s, err=%d\n",
                       i + 1, algo, ret);
                return ret;
        }
        return 0;
}

static int alg_test_akcipher(const struct alg_test_desc *desc,
                             const char *driver, u32 type, u32 mask)
{
        struct crypto_akcipher *tfm;
        int err = 0;

        tfm = crypto_alloc_akcipher(driver, type, mask);
        if (IS_ERR(tfm)) {
                pr_err("alg: akcipher: Failed to load tfm for %s: %ld\n",
                       driver, PTR_ERR(tfm));
                return PTR_ERR(tfm);
        }
        if (desc->suite.akcipher.vecs)
                err = test_akcipher(tfm, desc->alg, desc->suite.akcipher.vecs,
                                    desc->suite.akcipher.count);

        crypto_free_akcipher(tfm);
        return err;
}

static int alg_test_null(const struct alg_test_desc *desc,
                             const char *driver, u32 type, u32 mask)
{
        return 0;
}

#define __VECS(tv)      { .vecs = tv, .count = ARRAY_SIZE(tv) }

/* Please keep this list sorted by algorithm name. */
static const struct alg_test_desc alg_test_descs[] = {
        {
                .alg = "adiantum(xchacha12,aes)",
                .generic_driver = "adiantum(xchacha12-generic,aes-generic,nhpoly1305-generic)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(adiantum_xchacha12_aes_tv_template)
                },
        }, {
                .alg = "adiantum(xchacha20,aes)",
                .generic_driver = "adiantum(xchacha20-generic,aes-generic,nhpoly1305-generic)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(adiantum_xchacha20_aes_tv_template)
                },
        }, {
                .alg = "aegis128",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(aegis128_tv_template)
                }
        }, {
                .alg = "ansi_cprng",
                .test = alg_test_cprng,
                .suite = {
                        .cprng = __VECS(ansi_cprng_aes_tv_template)
                }
        }, {
                .alg = "authenc(hmac(md5),ecb(cipher_null))",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(hmac_md5_ecb_cipher_null_tv_template)
                }
        }, {
                .alg = "authenc(hmac(sha1),cbc(aes))",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(hmac_sha1_aes_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha1),cbc(des))",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(hmac_sha1_des_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha1),cbc(des3_ede))",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(hmac_sha1_des3_ede_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha1),ctr(aes))",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "authenc(hmac(sha1),ecb(cipher_null))",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(hmac_sha1_ecb_cipher_null_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha1),rfc3686(ctr(aes)))",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "authenc(hmac(sha224),cbc(des))",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(hmac_sha224_des_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha224),cbc(des3_ede))",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(hmac_sha224_des3_ede_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha256),cbc(aes))",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(hmac_sha256_aes_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha256),cbc(des))",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(hmac_sha256_des_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha256),cbc(des3_ede))",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(hmac_sha256_des3_ede_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha256),ctr(aes))",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "authenc(hmac(sha256),rfc3686(ctr(aes)))",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "authenc(hmac(sha384),cbc(des))",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(hmac_sha384_des_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha384),cbc(des3_ede))",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(hmac_sha384_des3_ede_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha384),ctr(aes))",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "authenc(hmac(sha384),rfc3686(ctr(aes)))",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "authenc(hmac(sha512),cbc(aes))",
                .fips_allowed = 1,
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(hmac_sha512_aes_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha512),cbc(des))",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(hmac_sha512_des_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha512),cbc(des3_ede))",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(hmac_sha512_des3_ede_cbc_tv_temp)
                }
        }, {
                .alg = "authenc(hmac(sha512),ctr(aes))",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "authenc(hmac(sha512),rfc3686(ctr(aes)))",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "cbc(aes)",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(aes_cbc_tv_template)
                },
        }, {
                .alg = "cbc(anubis)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(anubis_cbc_tv_template)
                },
        }, {
                .alg = "cbc(blowfish)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(bf_cbc_tv_template)
                },
        }, {
                .alg = "cbc(camellia)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(camellia_cbc_tv_template)
                },
        }, {
                .alg = "cbc(cast5)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(cast5_cbc_tv_template)
                },
        }, {
                .alg = "cbc(cast6)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(cast6_cbc_tv_template)
                },
        }, {
                .alg = "cbc(des)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(des_cbc_tv_template)
                },
        }, {
                .alg = "cbc(des3_ede)",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(des3_ede_cbc_tv_template)
                },
        }, {
                /* Same as cbc(aes) except the key is stored in
                 * hardware secure memory which we reference by index
                 */
                .alg = "cbc(paes)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                /* Same as cbc(sm4) except the key is stored in
                 * hardware secure memory which we reference by index
                 */
                .alg = "cbc(psm4)",
                .test = alg_test_null,
        }, {
                .alg = "cbc(serpent)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(serpent_cbc_tv_template)
                },
        }, {
                .alg = "cbc(sm4)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(sm4_cbc_tv_template)
                }
        }, {
                .alg = "cbc(twofish)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(tf_cbc_tv_template)
                },
        }, {
                .alg = "cbcmac(aes)",
                .fips_allowed = 1,
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(aes_cbcmac_tv_template)
                }
        }, {
                .alg = "ccm(aes)",
                .generic_driver = "ccm_base(ctr(aes-generic),cbcmac(aes-generic))",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(aes_ccm_tv_template)
                }
        }, {
                .alg = "cfb(aes)",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(aes_cfb_tv_template)
                },
        }, {
                .alg = "chacha20",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(chacha20_tv_template)
                },
        }, {
                .alg = "cmac(aes)",
                .fips_allowed = 1,
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(aes_cmac128_tv_template)
                }
        }, {
                .alg = "cmac(des3_ede)",
                .fips_allowed = 1,
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(des3_ede_cmac64_tv_template)
                }
        }, {
                .alg = "compress_null",
                .test = alg_test_null,
        }, {
                .alg = "crc32",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(crc32_tv_template)
                }
        }, {
                .alg = "crc32c",
                .test = alg_test_crc32c,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(crc32c_tv_template)
                }
        }, {
                .alg = "crct10dif",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(crct10dif_tv_template)
                }
        }, {
                .alg = "ctr(aes)",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(aes_ctr_tv_template)
                }
        }, {
                .alg = "ctr(blowfish)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(bf_ctr_tv_template)
                }
        }, {
                .alg = "ctr(camellia)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(camellia_ctr_tv_template)
                }
        }, {
                .alg = "ctr(cast5)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(cast5_ctr_tv_template)
                }
        }, {
                .alg = "ctr(cast6)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(cast6_ctr_tv_template)
                }
        }, {
                .alg = "ctr(des)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(des_ctr_tv_template)
                }
        }, {
                .alg = "ctr(des3_ede)",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(des3_ede_ctr_tv_template)
                }
        }, {
                /* Same as ctr(aes) except the key is stored in
                 * hardware secure memory which we reference by index
                 */
                .alg = "ctr(paes)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {

                /* Same as ctr(sm4) except the key is stored in
                 * hardware secure memory which we reference by index
                 */
                .alg = "ctr(psm4)",
                .test = alg_test_null,
        }, {
                .alg = "ctr(serpent)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(serpent_ctr_tv_template)
                }
        }, {
                .alg = "ctr(sm4)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(sm4_ctr_tv_template)
                }
        }, {
                .alg = "ctr(twofish)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(tf_ctr_tv_template)
                }
        }, {
                .alg = "cts(cbc(aes))",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(cts_mode_tv_template)
                }
        }, {
                /* Same as cts(cbc((aes)) except the key is stored in
                 * hardware secure memory which we reference by index
                 */
                .alg = "cts(cbc(paes))",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "deflate",
                .test = alg_test_comp,
                .fips_allowed = 1,
                .suite = {
                        .comp = {
                                .comp = __VECS(deflate_comp_tv_template),
                                .decomp = __VECS(deflate_decomp_tv_template)
                        }
                }
        }, {
                .alg = "dh",
                .test = alg_test_kpp,
                .fips_allowed = 1,
                .suite = {
                        .kpp = __VECS(dh_tv_template)
                }
        }, {
                .alg = "digest_null",
                .test = alg_test_null,
        }, {
                .alg = "drbg_nopr_ctr_aes128",
                .test = alg_test_drbg,
                .fips_allowed = 1,
                .suite = {
                        .drbg = __VECS(drbg_nopr_ctr_aes128_tv_template)
                }
        }, {
                .alg = "drbg_nopr_ctr_aes192",
                .test = alg_test_drbg,
                .fips_allowed = 1,
                .suite = {
                        .drbg = __VECS(drbg_nopr_ctr_aes192_tv_template)
                }
        }, {
                .alg = "drbg_nopr_ctr_aes256",
                .test = alg_test_drbg,
                .fips_allowed = 1,
                .suite = {
                        .drbg = __VECS(drbg_nopr_ctr_aes256_tv_template)
                }
        }, {
                /*
                 * There is no need to specifically test the DRBG with every
                 * backend cipher -- covered by drbg_nopr_hmac_sha256 test
                 */
                .alg = "drbg_nopr_hmac_sha1",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_nopr_hmac_sha256",
                .test = alg_test_drbg,
                .fips_allowed = 1,
                .suite = {
                        .drbg = __VECS(drbg_nopr_hmac_sha256_tv_template)
                }
        }, {
                /* covered by drbg_nopr_hmac_sha256 test */
                .alg = "drbg_nopr_hmac_sha384",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_nopr_hmac_sha512",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "drbg_nopr_sha1",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_nopr_sha256",
                .test = alg_test_drbg,
                .fips_allowed = 1,
                .suite = {
                        .drbg = __VECS(drbg_nopr_sha256_tv_template)
                }
        }, {
                /* covered by drbg_nopr_sha256 test */
                .alg = "drbg_nopr_sha384",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_nopr_sha512",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_pr_ctr_aes128",
                .test = alg_test_drbg,
                .fips_allowed = 1,
                .suite = {
                        .drbg = __VECS(drbg_pr_ctr_aes128_tv_template)
                }
        }, {
                /* covered by drbg_pr_ctr_aes128 test */
                .alg = "drbg_pr_ctr_aes192",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_pr_ctr_aes256",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_pr_hmac_sha1",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_pr_hmac_sha256",
                .test = alg_test_drbg,
                .fips_allowed = 1,
                .suite = {
                        .drbg = __VECS(drbg_pr_hmac_sha256_tv_template)
                }
        }, {
                /* covered by drbg_pr_hmac_sha256 test */
                .alg = "drbg_pr_hmac_sha384",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_pr_hmac_sha512",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "drbg_pr_sha1",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_pr_sha256",
                .test = alg_test_drbg,
                .fips_allowed = 1,
                .suite = {
                        .drbg = __VECS(drbg_pr_sha256_tv_template)
                }
        }, {
                /* covered by drbg_pr_sha256 test */
                .alg = "drbg_pr_sha384",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "drbg_pr_sha512",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "ecb(aes)",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(aes_tv_template)
                }
        }, {
                .alg = "ecb(anubis)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(anubis_tv_template)
                }
        }, {
                .alg = "ecb(arc4)",
                .generic_driver = "ecb(arc4)-generic",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(arc4_tv_template)
                }
        }, {
                .alg = "ecb(blowfish)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(bf_tv_template)
                }
        }, {
                .alg = "ecb(camellia)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(camellia_tv_template)
                }
        }, {
                .alg = "ecb(cast5)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(cast5_tv_template)
                }
        }, {
                .alg = "ecb(cast6)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(cast6_tv_template)
                }
        }, {
                .alg = "ecb(cipher_null)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "ecb(des)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(des_tv_template)
                }
        }, {
                .alg = "ecb(des3_ede)",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(des3_ede_tv_template)
                }
        }, {
                .alg = "ecb(fcrypt)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = {
                                .vecs = fcrypt_pcbc_tv_template,
                                .count = 1
                        }
                }
        }, {
                .alg = "ecb(khazad)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(khazad_tv_template)
                }
        }, {
                /* Same as ecb(aes) except the key is stored in
                 * hardware secure memory which we reference by index
                 */
                .alg = "ecb(paes)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "ecb(seed)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(seed_tv_template)
                }
        }, {
                .alg = "ecb(serpent)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(serpent_tv_template)
                }
        }, {
                .alg = "ecb(sm4)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(sm4_tv_template)
                }
        }, {
                .alg = "ecb(tea)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(tea_tv_template)
                }
        }, {
                .alg = "ecb(tnepres)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(tnepres_tv_template)
                }
        }, {
                .alg = "ecb(twofish)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(tf_tv_template)
                }
        }, {
                .alg = "ecb(xeta)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(xeta_tv_template)
                }
        }, {
                .alg = "ecb(xtea)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(xtea_tv_template)
                }
        }, {
                .alg = "ecdh",
                .test = alg_test_kpp,
                .fips_allowed = 1,
                .suite = {
                        .kpp = __VECS(ecdh_tv_template)
                }
        }, {
                .alg = "ecrdsa",
                .test = alg_test_akcipher,
                .suite = {
                        .akcipher = __VECS(ecrdsa_tv_template)
                }
        }, {
                .alg = "essiv(authenc(hmac(sha256),cbc(aes)),sha256)",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(essiv_hmac_sha256_aes_cbc_tv_temp)
                }
        }, {
                .alg = "essiv(cbc(aes),sha256)",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(essiv_aes_cbc_tv_template)
                }
        }, {
                .alg = "gcm(aes)",
                .generic_driver = "gcm_base(ctr(aes-generic),ghash-generic)",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(aes_gcm_tv_template)
                }
        }, {
                .alg = "ghash",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(ghash_tv_template)
                }
        }, {
                .alg = "hmac(md5)",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(hmac_md5_tv_template)
                }
        }, {
                .alg = "hmac(rmd128)",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(hmac_rmd128_tv_template)
                }
        }, {
                .alg = "hmac(rmd160)",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(hmac_rmd160_tv_template)
                }
        }, {
                .alg = "hmac(sha1)",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(hmac_sha1_tv_template)
                }
        }, {
                .alg = "hmac(sha224)",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(hmac_sha224_tv_template)
                }
        }, {
                .alg = "hmac(sha256)",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(hmac_sha256_tv_template)
                }
        }, {
                .alg = "hmac(sha3-224)",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(hmac_sha3_224_tv_template)
                }
        }, {
                .alg = "hmac(sha3-256)",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(hmac_sha3_256_tv_template)
                }
        }, {
                .alg = "hmac(sha3-384)",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(hmac_sha3_384_tv_template)
                }
        }, {
                .alg = "hmac(sha3-512)",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(hmac_sha3_512_tv_template)
                }
        }, {
                .alg = "hmac(sha384)",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(hmac_sha384_tv_template)
                }
        }, {
                .alg = "hmac(sha512)",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(hmac_sha512_tv_template)
                }
        }, {
                .alg = "hmac(streebog256)",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(hmac_streebog256_tv_template)
                }
        }, {
                .alg = "hmac(streebog512)",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(hmac_streebog512_tv_template)
                }
        }, {
                .alg = "jitterentropy_rng",
                .fips_allowed = 1,
                .test = alg_test_null,
        }, {
                .alg = "kw(aes)",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(aes_kw_tv_template)
                }
        }, {
                .alg = "lrw(aes)",
                .generic_driver = "lrw(ecb(aes-generic))",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(aes_lrw_tv_template)
                }
        }, {
                .alg = "lrw(camellia)",
                .generic_driver = "lrw(ecb(camellia-generic))",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(camellia_lrw_tv_template)
                }
        }, {
                .alg = "lrw(cast6)",
                .generic_driver = "lrw(ecb(cast6-generic))",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(cast6_lrw_tv_template)
                }
        }, {
                .alg = "lrw(serpent)",
                .generic_driver = "lrw(ecb(serpent-generic))",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(serpent_lrw_tv_template)
                }
        }, {
                .alg = "lrw(twofish)",
                .generic_driver = "lrw(ecb(twofish-generic))",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(tf_lrw_tv_template)
                }
        }, {
                .alg = "lz4",
                .test = alg_test_comp,
                .fips_allowed = 1,
                .suite = {
                        .comp = {
                                .comp = __VECS(lz4_comp_tv_template),
                                .decomp = __VECS(lz4_decomp_tv_template)
                        }
                }
        }, {
                .alg = "lz4hc",
                .test = alg_test_comp,
                .fips_allowed = 1,
                .suite = {
                        .comp = {
                                .comp = __VECS(lz4hc_comp_tv_template),
                                .decomp = __VECS(lz4hc_decomp_tv_template)
                        }
                }
        }, {
                .alg = "lzo",
                .test = alg_test_comp,
                .fips_allowed = 1,
                .suite = {
                        .comp = {
                                .comp = __VECS(lzo_comp_tv_template),
                                .decomp = __VECS(lzo_decomp_tv_template)
                        }
                }
        }, {
                .alg = "lzo-rle",
                .test = alg_test_comp,
                .fips_allowed = 1,
                .suite = {
                        .comp = {
                                .comp = __VECS(lzorle_comp_tv_template),
                                .decomp = __VECS(lzorle_decomp_tv_template)
                        }
                }
        }, {
                .alg = "md4",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(md4_tv_template)
                }
        }, {
                .alg = "md5",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(md5_tv_template)
                }
        }, {
                .alg = "michael_mic",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(michael_mic_tv_template)
                }
        }, {
                .alg = "nhpoly1305",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(nhpoly1305_tv_template)
                }
        }, {
                .alg = "ofb(aes)",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(aes_ofb_tv_template)
                }
        }, {
                /* Same as ofb(aes) except the key is stored in
                 * hardware secure memory which we reference by index
                 */
                .alg = "ofb(paes)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "pcbc(fcrypt)",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(fcrypt_pcbc_tv_template)
                }
        }, {
                .alg = "pkcs1pad(rsa,sha224)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "pkcs1pad(rsa,sha256)",
                .test = alg_test_akcipher,
                .fips_allowed = 1,
                .suite = {
                        .akcipher = __VECS(pkcs1pad_rsa_tv_template)
                }
        }, {
                .alg = "pkcs1pad(rsa,sha384)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "pkcs1pad(rsa,sha512)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "poly1305",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(poly1305_tv_template)
                }
        }, {
                .alg = "rfc3686(ctr(aes))",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(aes_ctr_rfc3686_tv_template)
                }
        }, {
                .alg = "rfc4106(gcm(aes))",
                .generic_driver = "rfc4106(gcm_base(ctr(aes-generic),ghash-generic))",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(aes_gcm_rfc4106_tv_template)
                }
        }, {
                .alg = "rfc4309(ccm(aes))",
                .generic_driver = "rfc4309(ccm_base(ctr(aes-generic),cbcmac(aes-generic)))",
                .test = alg_test_aead,
                .fips_allowed = 1,
                .suite = {
                        .aead = __VECS(aes_ccm_rfc4309_tv_template)
                }
        }, {
                .alg = "rfc4543(gcm(aes))",
                .generic_driver = "rfc4543(gcm_base(ctr(aes-generic),ghash-generic))",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(aes_gcm_rfc4543_tv_template)
                }
        }, {
                .alg = "rfc7539(chacha20,poly1305)",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(rfc7539_tv_template)
                }
        }, {
                .alg = "rfc7539esp(chacha20,poly1305)",
                .test = alg_test_aead,
                .suite = {
                        .aead = __VECS(rfc7539esp_tv_template)
                }
        }, {
                .alg = "rmd128",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(rmd128_tv_template)
                }
        }, {
                .alg = "rmd160",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(rmd160_tv_template)
                }
        }, {
                .alg = "rmd256",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(rmd256_tv_template)
                }
        }, {
                .alg = "rmd320",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(rmd320_tv_template)
                }
        }, {
                .alg = "rsa",
                .test = alg_test_akcipher,
                .fips_allowed = 1,
                .suite = {
                        .akcipher = __VECS(rsa_tv_template)
                }
        }, {
                .alg = "salsa20",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(salsa20_stream_tv_template)
                }
        }, {
                .alg = "sha1",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(sha1_tv_template)
                }
        }, {
                .alg = "sha224",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(sha224_tv_template)
                }
        }, {
                .alg = "sha256",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(sha256_tv_template)
                }
        }, {
                .alg = "sha3-224",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(sha3_224_tv_template)
                }
        }, {
                .alg = "sha3-256",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(sha3_256_tv_template)
                }
        }, {
                .alg = "sha3-384",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(sha3_384_tv_template)
                }
        }, {
                .alg = "sha3-512",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(sha3_512_tv_template)
                }
        }, {
                .alg = "sha384",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(sha384_tv_template)
                }
        }, {
                .alg = "sha512",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(sha512_tv_template)
                }
        }, {
                .alg = "sm3",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(sm3_tv_template)
                }
        }, {
                .alg = "streebog256",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(streebog256_tv_template)
                }
        }, {
                .alg = "streebog512",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(streebog512_tv_template)
                }
        }, {
                .alg = "tgr128",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(tgr128_tv_template)
                }
        }, {
                .alg = "tgr160",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(tgr160_tv_template)
                }
        }, {
                .alg = "tgr192",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(tgr192_tv_template)
                }
        }, {
                .alg = "vmac64(aes)",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(vmac64_aes_tv_template)
                }
        }, {
                .alg = "wp256",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(wp256_tv_template)
                }
        }, {
                .alg = "wp384",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(wp384_tv_template)
                }
        }, {
                .alg = "wp512",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(wp512_tv_template)
                }
        }, {
                .alg = "xcbc(aes)",
                .test = alg_test_hash,
                .suite = {
                        .hash = __VECS(aes_xcbc128_tv_template)
                }
        }, {
                .alg = "xchacha12",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(xchacha12_tv_template)
                },
        }, {
                .alg = "xchacha20",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(xchacha20_tv_template)
                },
        }, {
                .alg = "xts(aes)",
                .generic_driver = "xts(ecb(aes-generic))",
                .test = alg_test_skcipher,
                .fips_allowed = 1,
                .suite = {
                        .cipher = __VECS(aes_xts_tv_template)
                }
        }, {
                .alg = "xts(camellia)",
                .generic_driver = "xts(ecb(camellia-generic))",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(camellia_xts_tv_template)
                }
        }, {
                .alg = "xts(cast6)",
                .generic_driver = "xts(ecb(cast6-generic))",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(cast6_xts_tv_template)
                }
        }, {
                /* Same as xts(aes) except the key is stored in
                 * hardware secure memory which we reference by index
                 */
                .alg = "xts(paes)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "xts(serpent)",
                .generic_driver = "xts(ecb(serpent-generic))",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(serpent_xts_tv_template)
                }
        }, {
                .alg = "xts(twofish)",
                .generic_driver = "xts(ecb(twofish-generic))",
                .test = alg_test_skcipher,
                .suite = {
                        .cipher = __VECS(tf_xts_tv_template)
                }
        }, {
                .alg = "xts4096(paes)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "xts512(paes)",
                .test = alg_test_null,
                .fips_allowed = 1,
        }, {
                .alg = "xxhash64",
                .test = alg_test_hash,
                .fips_allowed = 1,
                .suite = {
                        .hash = __VECS(xxhash64_tv_template)
                }
        }, {
                .alg = "zlib-deflate",
                .test = alg_test_comp,
                .fips_allowed = 1,
                .suite = {
                        .comp = {
                                .comp = __VECS(zlib_deflate_comp_tv_template),
                                .decomp = __VECS(zlib_deflate_decomp_tv_template)
                        }
                }
        }, {
                .alg = "zstd",
                .test = alg_test_comp,
                .fips_allowed = 1,
                .suite = {
                        .comp = {
                                .comp = __VECS(zstd_comp_tv_template),
                                .decomp = __VECS(zstd_decomp_tv_template)
                        }
                }
        }
};

static void alg_check_test_descs_order(void)
{
        int i;

        for (i = 1; i < ARRAY_SIZE(alg_test_descs); i++) {
                int diff = strcmp(alg_test_descs[i - 1].alg,
                                  alg_test_descs[i].alg);

                if (WARN_ON(diff > 0)) {
                        pr_warn("testmgr: alg_test_descs entries in wrong order: '%s' before '%s'\n",
                                alg_test_descs[i - 1].alg,
                                alg_test_descs[i].alg);
                }

                if (WARN_ON(diff == 0)) {
                        pr_warn("testmgr: duplicate alg_test_descs entry: '%s'\n",
                                alg_test_descs[i].alg);
                }
        }
}

static void alg_check_testvec_configs(void)
{
        int i;

        for (i = 0; i < ARRAY_SIZE(default_cipher_testvec_configs); i++)
                WARN_ON(!valid_testvec_config(
                                &default_cipher_testvec_configs[i]));

        for (i = 0; i < ARRAY_SIZE(default_hash_testvec_configs); i++)
                WARN_ON(!valid_testvec_config(
                                &default_hash_testvec_configs[i]));
}

static void testmgr_onetime_init(void)
{
        alg_check_test_descs_order();
        alg_check_testvec_configs();

#ifdef CONFIG_CRYPTO_MANAGER_EXTRA_TESTS
        pr_warn("alg: extra crypto tests enabled.  This is intended for developer use only.\n");
#endif
}

static int alg_find_test(const char *alg)
{
        int start = 0;
        int end = ARRAY_SIZE(alg_test_descs);

        while (start < end) {
                int i = (start + end) / 2;
                int diff = strcmp(alg_test_descs[i].alg, alg);

                if (diff > 0) {
                        end = i;
                        continue;
                }

                if (diff < 0) {
                        start = i + 1;
                        continue;
                }

                return i;
        }

        return -1;
}

int alg_test(const char *driver, const char *alg, u32 type, u32 mask)
{
        int i;
        int j;
        int rc;

        if (!fips_enabled && notests) {
                printk_once(KERN_INFO "alg: self-tests disabled\n");
                return 0;
        }

        DO_ONCE(testmgr_onetime_init);

        if ((type & CRYPTO_ALG_TYPE_MASK) == CRYPTO_ALG_TYPE_CIPHER) {
                char nalg[CRYPTO_MAX_ALG_NAME];

                if (snprintf(nalg, sizeof(nalg), "ecb(%s)", alg) >=
                    sizeof(nalg))
                        return -ENAMETOOLONG;

                i = alg_find_test(nalg);
                if (i < 0)
                        goto notest;

                if (fips_enabled && !alg_test_descs[i].fips_allowed)
                        goto non_fips_alg;

                rc = alg_test_cipher(alg_test_descs + i, driver, type, mask);
                goto test_done;
        }

        i = alg_find_test(alg);
        j = alg_find_test(driver);
        if (i < 0 && j < 0)
                goto notest;

        if (fips_enabled && ((i >= 0 && !alg_test_descs[i].fips_allowed) ||
                             (j >= 0 && !alg_test_descs[j].fips_allowed)))
                goto non_fips_alg;

        rc = 0;
        if (i >= 0)
                rc |= alg_test_descs[i].test(alg_test_descs + i, driver,
                                             type, mask);
        if (j >= 0 && j != i)
                rc |= alg_test_descs[j].test(alg_test_descs + j, driver,
                                             type, mask);

test_done:
        if (rc && (fips_enabled || panic_on_fail)) {
                fips_fail_notify();
                panic("alg: self-tests for %s (%s) failed in %s mode!\n",
                      driver, alg, fips_enabled ? "fips" : "panic_on_fail");
        }

        if (fips_enabled && !rc)
                pr_info("alg: self-tests for %s (%s) passed\n", driver, alg);

        return rc;

notest:
        printk(KERN_INFO "alg: No test for %s (%s)\n", alg, driver);
        return 0;
non_fips_alg:
        return -EINVAL;
}

#endif /* CONFIG_CRYPTO_MANAGER_DISABLE_TESTS */

EXPORT_SYMBOL_GPL(alg_test);