/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://opensource.org/licenses/CDDL-1.0.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2013 Saso Kiselkov. All rights reserved.
 */

/*
 * This is just to keep the compiler happy about sys/time.h not declaring
 * gettimeofday due to -D_KERNEL (we can do this since we're actually
 * running in userspace, but we need -D_KERNEL for the remaining Edon-R code).
 */
#ifdef  _KERNEL
#undef  _KERNEL
#endif

#include <sys/edonr.h>
#include <stdlib.h>
#include <strings.h>
#include <stdio.h>
#include <sys/time.h>
#include <note.h>

/*
 * Test messages from:
 * http://csrc.nist.gov/groups/ST/toolkit/documents/Examples/SHA_All.pdf
 */
const char      *test_msg0 = "abc";
const char      *test_msg1 = "abcdbcdecdefdefgefghfghighijhijkijkljklmklmn"
        "lmnomnopnopq";
const char      *test_msg2 = "abcdefghbcdefghicdefghijdefghijkefghijklfghi"
        "jklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu";

/*
 * Test digests computed by hand. There's no formal standard or spec for edonr.
 */
const uint8_t   edonr_224_test_digests[][28] = {
        {
                /* for test_msg0 */
                0x56, 0x63, 0xc4, 0x93, 0x95, 0x20, 0xfa, 0xf6,
                0x12, 0x31, 0x65, 0xa4, 0x66, 0xf2, 0x56, 0x01,
                0x95, 0x2e, 0xa9, 0xe4, 0x24, 0xdd, 0xc9, 0x6b,
                0xef, 0xd0, 0x40, 0x94
        },
        {
                /* for test_msg1 */
                0xd0, 0x13, 0xe4, 0x87, 0x4d, 0x06, 0x8d, 0xca,
                0x4e, 0x14, 0xb9, 0x37, 0x2f, 0xce, 0x12, 0x20,
                0x60, 0xf8, 0x5c, 0x0a, 0xfd, 0x7a, 0x7d, 0x97,
                0x88, 0x2b, 0x05, 0x75
        }
        /* no test vector for test_msg2 */
};

const uint8_t   edonr_256_test_digests[][32] = {
        {
                /* for test_msg0 */
                0x54, 0xd7, 0x8b, 0x13, 0xc7, 0x4e, 0xda, 0x5a,
                0xed, 0xc2, 0x71, 0xcc, 0x88, 0x1f, 0xb2, 0x2f,
                0x83, 0x99, 0xaf, 0xd3, 0x04, 0x0b, 0x6a, 0x39,
                0x2d, 0x73, 0x94, 0x05, 0x50, 0x8d, 0xd8, 0x51
        },
        {
                /* for test_msg1 */
                0x49, 0x2d, 0x0b, 0x19, 0xab, 0x1e, 0xde, 0x3a,
                0xea, 0x9b, 0xf2, 0x39, 0x3a, 0xb1, 0x21, 0xde,
                0x21, 0xf6, 0x80, 0x1f, 0xad, 0xbe, 0x8b, 0x07,
                0xc7, 0xfb, 0xe6, 0x99, 0x0e, 0x4d, 0x73, 0x63
        }
        /* no test vectorfor test_msg2 */
};

const uint8_t   edonr_384_test_digests[][48] = {
        {
                /* for test_msg0 */
                0x0e, 0x7c, 0xd7, 0x85, 0x78, 0x77, 0xe0, 0x89,
                0x5b, 0x1c, 0xdf, 0x49, 0xf4, 0x1d, 0x20, 0x9c,
                0x72, 0x7d, 0x2e, 0x57, 0x9b, 0x9b, 0x9a, 0xdc,
                0x60, 0x27, 0x97, 0x82, 0xb9, 0x90, 0x72, 0xec,
                0x7e, 0xce, 0xd3, 0x16, 0x5f, 0x47, 0x75, 0x48,
                0xfa, 0x60, 0x72, 0x7e, 0x01, 0xc7, 0x7c, 0xc6
        },
        {
                /* no test vector for test_msg1 */
                0
        },
        {
                /* for test_msg2 */
                0xe2, 0x34, 0xa1, 0x02, 0x83, 0x76, 0xae, 0xe6,
                0x82, 0xd9, 0x38, 0x32, 0x0e, 0x00, 0x78, 0xd2,
                0x34, 0xdb, 0xb9, 0xbd, 0xf0, 0x08, 0xa8, 0x0f,
                0x63, 0x1c, 0x3d, 0x4a, 0xfd, 0x0a, 0xe9, 0x59,
                0xdc, 0xd4, 0xce, 0xcd, 0x8d, 0x67, 0x6c, 0xea,
                0xbb, 0x1a, 0x32, 0xed, 0x5c, 0x6b, 0xf1, 0x7f
        }
};

const uint8_t   edonr_512_test_digests[][64] = {
        {
                /* for test_msg0 */
                0x1b, 0x14, 0xdb, 0x15, 0x5f, 0x1d, 0x40, 0x65,
                0x94, 0xb8, 0xce, 0xf7, 0x0a, 0x43, 0x62, 0xec,
                0x6b, 0x5d, 0xe6, 0xa5, 0xda, 0xf5, 0x0e, 0xc9,
                0x99, 0xe9, 0x87, 0xc1, 0x9d, 0x30, 0x49, 0xe2,
                0xde, 0x59, 0x77, 0xbb, 0x05, 0xb1, 0xbb, 0x22,
                0x00, 0x50, 0xa1, 0xea, 0x5b, 0x46, 0xa9, 0xf1,
                0x74, 0x0a, 0xca, 0xfb, 0xf6, 0xb4, 0x50, 0x32,
                0xad, 0xc9, 0x0c, 0x62, 0x83, 0x72, 0xc2, 0x2b
        },
        {
                /* no test vector for test_msg1 */
                0
        },
        {
                /* for test_msg2 */
                0x53, 0x51, 0x07, 0x0d, 0xc5, 0x1c, 0x3b, 0x2b,
                0xac, 0xa5, 0xa6, 0x0d, 0x02, 0x52, 0xcc, 0xb4,
                0xe4, 0x92, 0x1a, 0x96, 0xfe, 0x5a, 0x69, 0xe7,
                0x6d, 0xad, 0x48, 0xfd, 0x21, 0xa0, 0x84, 0x5a,
                0xd5, 0x7f, 0x88, 0x0b, 0x3e, 0x4a, 0x90, 0x7b,
                0xc5, 0x03, 0x15, 0x18, 0x42, 0xbb, 0x94, 0x9e,
                0x1c, 0xba, 0x74, 0x39, 0xa6, 0x40, 0x9a, 0x34,
                0xb8, 0x43, 0x6c, 0xb4, 0x69, 0x21, 0x58, 0x3c
        }
};

int
main(int argc, char *argv[])
{
        boolean_t       failed = B_FALSE;
        uint64_t        cpu_mhz = 0;

        if (argc == 2)
                cpu_mhz = atoi(argv[1]);

#define EDONR_ALGO_TEST(_m, mode, testdigest)                           \
        do {                                                            \
                EdonRState      ctx;                                    \
                uint8_t         digest[mode / 8];                       \
                EdonRInit(&ctx, mode);                                  \
                EdonRUpdate(&ctx, (const uint8_t *) _m, strlen(_m) * 8);\
                EdonRFinal(&ctx, digest);                               \
                (void) printf("Edon-R-%-6sMessage: " #_m                \
                    "\tResult: ", #mode);                               \
                if (bcmp(digest, testdigest, mode / 8) == 0) {          \
                        (void) printf("OK\n");                          \
                } else {                                                \
                        (void) printf("FAILED!\n");                     \
                        failed = B_TRUE;                                \
                }                                                       \
                NOTE(CONSTCOND)                                         \
        } while (0)

#define EDONR_PERF_TEST(mode)                                           \
        do {                                                            \
                EdonRState      ctx;                                    \
                uint8_t         digest[mode / 8];                       \
                uint8_t         block[131072];                          \
                uint64_t        delta;                                  \
                double          cpb = 0;                                \
                int             i;                                      \
                struct timeval  start, end;                             \
                bzero(block, sizeof (block));                           \
                (void) gettimeofday(&start, NULL);                      \
                EdonRInit(&ctx, mode);                                  \
                for (i = 0; i < 8192; i++)                              \
                        EdonRUpdate(&ctx, block, sizeof (block) * 8);   \
                EdonRFinal(&ctx, digest);                               \
                (void) gettimeofday(&end, NULL);                        \
                delta = (end.tv_sec * 1000000llu + end.tv_usec) -       \
                    (start.tv_sec * 1000000llu + start.tv_usec);        \
                if (cpu_mhz != 0) {                                     \
                        cpb = (cpu_mhz * 1e6 * ((double)delta /         \
                            1000000)) / (8192 * 128 * 1024);            \
                }                                                       \
                (void) printf("Edon-R-%-6s%llu us (%.02f CPB)\n", #mode,\
                    (u_longlong_t)delta, cpb);                          \
                NOTE(CONSTCOND)                                         \
        } while (0)

        (void) printf("Running algorithm correctness tests:\n");
        EDONR_ALGO_TEST(test_msg0, 224, edonr_224_test_digests[0]);
        EDONR_ALGO_TEST(test_msg1, 224, edonr_224_test_digests[1]);
        EDONR_ALGO_TEST(test_msg0, 256, edonr_256_test_digests[0]);
        EDONR_ALGO_TEST(test_msg1, 256, edonr_256_test_digests[1]);
        EDONR_ALGO_TEST(test_msg0, 384, edonr_384_test_digests[0]);
        EDONR_ALGO_TEST(test_msg2, 384, edonr_384_test_digests[2]);
        EDONR_ALGO_TEST(test_msg0, 512, edonr_512_test_digests[0]);
        EDONR_ALGO_TEST(test_msg2, 512, edonr_512_test_digests[2]);
        if (failed)
                return (1);

        (void) printf("Running performance tests (hashing 1024 MiB of "
            "data):\n");
        EDONR_PERF_TEST(256);
        EDONR_PERF_TEST(512);

        return (0);
}