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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdint.h>

#ifndef DO_TEST_H
#define DO_TEST_H

static unsigned char key[] = { 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
                               0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83,
                               0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d,
                               0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
                               0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0 };

static unsigned char text[] = { 0x53, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x20, 0x23, 0x34 };

static unsigned char hmac12[] = { 0x9e, 0xa8, 0x86, 0xef, 0xe2, 0x68,
                                  0xdb, 0xec, 0xce, 0x42, 0x0c, 0x75 };

#define KEYSIZE  sizeof(key)
#define TEXTSIZE sizeof(text)

static unsigned char plain[] = { 0x6b, 0xc1, 0xbe, 0xe2, 0x2e, 0x40, 0x9f, 0x96, 0xe9, 0x3d, 0x7e,
                                 0x11, 0x73, 0x93, 0x17, 0x2a, 0xae, 0x2d, 0x8a, 0x57, 0x1e, 0x03,
                                 0xac, 0x9c, 0x9e, 0xb7, 0x6f, 0xac, 0x45, 0xaf, 0x8e, 0x51, 0x30,
                                 0xc8, 0x1c, 0x46, 0xa3, 0x5c, 0xe4, 0x11, 0xe5, 0xfb, 0xc1, 0x19,
                                 0x1a, 0x0a, 0x52, 0xef, 0xf6, 0x9f, 0x24, 0x45, 0xdf, 0x4f, 0x9b,
                                 0x17, 0xad, 0x2b, 0x41, 0x7b, 0xe6, 0x6c, 0x37, 0x10 };

static unsigned char key128[] = { 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
                                  0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c };

/* static unsigned char key256[] = { */
/*         0x60, 0x3d, 0xeb, 0x10, 0x15, 0xca, 0x71, 0xbe, */
/*         0x2b, 0x73, 0xae, 0xf0, 0x85, 0x7d, 0x77, 0x81, */
/*         0x1f, 0x35, 0x2c, 0x07, 0x3b, 0x61, 0x08, 0xd7, */
/*         0x2d, 0x98, 0x10, 0xa3, 0x09, 0x14, 0xdf, 0xf4 */
/* }; */

static unsigned char ic[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
                              0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f };

static unsigned char cipherCBC128[] = { 0x76, 0x49, 0xab, 0xac, 0x81, 0x19, 0xb2, 0x46, 0xce, 0xe9,
                                        0x8e, 0x9b, 0x12, 0xe9, 0x19, 0x7d, 0x50, 0x86, 0xcb, 0x9b,
                                        0x50, 0x72, 0x19, 0xee, 0x95, 0xdb, 0x11, 0x3a, 0x91, 0x76,
                                        0x78, 0xb2, 0x73, 0xbe, 0xd6, 0xb8, 0xe3, 0xc1, 0x74, 0x3b,
                                        0x71, 0x16, 0xe6, 0x9e, 0x22, 0x22, 0x95, 0x16, 0x3f, 0xf1,
                                        0xca, 0xa1, 0x68, 0x1f, 0xac, 0x09, 0x12, 0x0e, 0xca, 0x30,
                                        0x75, 0x86, 0xe1, 0xa7 };

/* static unsigned char cipherCBC256[] = { */
/*         0xf5, 0x8c, 0x4c, 0x04, 0xd6, 0xe5, 0xf1, 0xba, */
/*         0x77, 0x9e, 0xab, 0xfb, 0x5f, 0x7b, 0xfb, 0xd6, */
/*         0x9c, 0xfc, 0x4e, 0x96, 0x7e, 0xdb, 0x80, 0x8d, */
/*         0x67, 0x9f, 0x77, 0x7b, 0xc6, 0x70, 0x2c, 0x7d, */
/*         0x39, 0xf2, 0x33, 0x69, 0xa9, 0xd9, 0xba, 0xcf, */
/*         0xa5, 0x30, 0xe2, 0x63, 0x04, 0x23, 0x14, 0x61, */
/*         0xb2, 0xeb, 0x05, 0xe2, 0xc3, 0x9b, 0xe9, 0xfc, */
/*         0xda, 0x6c, 0x19, 0x07, 0x8c, 0x6a, 0x9d, 0x1b */
/* }; */

#define NUMBLOCKS 4
#define NUMBYTES  (NUMBLOCKS * 16)

static int
known_answer_test(IMB_MGR *mb_mgr)
{
        uint8_t test_buf[NUMBYTES];
        uint8_t buf[64];
        DECLARE_ALIGNED(uint32_t enc_keys[15 * 4], 16);
        DECLARE_ALIGNED(uint32_t dec_keys[15 * 4], 16);
        DECLARE_ALIGNED(uint8_t ipad_hash[5 * 4], 16);
        DECLARE_ALIGNED(uint8_t opad_hash[5 * 4], 16);
        IMB_JOB *job;
        uint8_t iv[16];
        uint8_t digest[12];
        uint32_t i;

        /* compute ipad hash */
        for (i = 0; i < 64; i++)
                buf[i] = 0x36;
        for (i = 0; i < KEYSIZE; i++)
                buf[i] ^= key[i];
        IMB_SHA1_ONE_BLOCK(mb_mgr, buf, ipad_hash);

        /* compute opad hash */
        for (i = 0; i < 64; i++)
                buf[i] = 0x5c;
        for (i = 0; i < KEYSIZE; i++)
                buf[i] ^= key[i];
        IMB_SHA1_ONE_BLOCK(mb_mgr, buf, opad_hash);

        /* Expand key */
        IMB_AES_KEYEXP_128(mb_mgr, key128, enc_keys, dec_keys);

        /* flush the scheduler */
        while (IMB_FLUSH_JOB(mb_mgr) != NULL)
                ;

        /* test AES128 Dec */
        job = IMB_GET_NEXT_JOB(mb_mgr);

        job->enc_keys = enc_keys;
        job->dec_keys = dec_keys;
        job->cipher_direction = IMB_DIR_DECRYPT;
        job->chain_order = IMB_ORDER_HASH_CIPHER;
        job->dst = test_buf;
        job->key_len_in_bytes = 16;
        job->auth_tag_output = digest;
        job->auth_tag_output_len_in_bytes = 12;
        memcpy(iv, ic, sizeof(iv));
        job->iv = iv;
        job->iv_len_in_bytes = 16;
        job->src = cipherCBC128;
        job->cipher_start_src_offset_in_bytes = 0;
        job->msg_len_to_cipher_in_bytes = NUMBYTES;
        job->hash_start_src_offset_in_bytes = (uintptr_t) text - (uintptr_t) job->src;
        job->msg_len_to_hash_in_bytes = TEXTSIZE;
        job->u.HMAC._hashed_auth_key_xor_ipad = ipad_hash;
        job->u.HMAC._hashed_auth_key_xor_opad = opad_hash;
        job->cipher_mode = IMB_CIPHER_CBC;
        job->hash_alg = IMB_AUTH_HMAC_SHA_1;

        job = IMB_SUBMIT_JOB(mb_mgr);
        if (job) {
                printf("Unexpected return from submit_job\n");
                return 1;
        }
        job = IMB_FLUSH_JOB(mb_mgr);
        if (!job) {
                printf("Unexpected null return from flush_job\n");
                return 1;
        }
        for (i = 0; i < NUMBYTES; i++) {
                if (test_buf[i] != plain[i]) {
                        printf("AES128 Dec mismatch on byte %u\n", i);
                        return 1;
                }
        }

        for (i = 0; i < 12; i++) {
                if (digest[i] != hmac12[i]) {
                        printf("HMAC/SHA1 mismatch on byte %u\n", i);
                        return 1;
                }
        }
        printf("Known answer passes\n");
        return 0;
}

static void
test_aux_func(IMB_MGR *mgr)
{
        /* test aux functions */
        imb_uint128_t keys[15] = { { 0, 0 } };
        static uint8_t buf[4096 + 20];

        uint32_t digest1[8];
        uint64_t digest3[8];
        DECLARE_ALIGNED(uint32_t k1_exp[15 * 4], 16);
        DECLARE_ALIGNED(uint32_t k2[4], 16);
        DECLARE_ALIGNED(uint32_t k3[4], 16);

        printf("Testing aux funcs\n");

        IMB_SHA1_ONE_BLOCK(mgr, buf, digest1);
        IMB_SHA224_ONE_BLOCK(mgr, buf, digest1);
        IMB_SHA256_ONE_BLOCK(mgr, buf, digest1);
        IMB_SHA384_ONE_BLOCK(mgr, buf, digest3);
        IMB_SHA512_ONE_BLOCK(mgr, buf, digest3);
        IMB_MD5_ONE_BLOCK(mgr, buf, digest1);
        IMB_AES_XCBC_KEYEXP(mgr, buf + 1, k1_exp, k2, k3);
        IMB_AES_KEYEXP_128(mgr, keys, k1_exp, k1_exp);
        IMB_AES_KEYEXP_192(mgr, keys, k1_exp, k1_exp);
        IMB_AES_KEYEXP_256(mgr, keys, k1_exp, k1_exp);
}

static int
do_test(IMB_MGR *mb_mgr)
{
        uint32_t size;
        IMB_JOB *job;
        static imb_uint128_t IV = { 0, 0 };
        static uint32_t ipad[5], opad[5], digest[3];
        imb_uint128_t keys[15] = { { 0, 0 } };
        static uint8_t buf[4096 + 20];

        for (size = 32; size < 4096; size += 16) {
                job = IMB_GET_NEXT_JOB(mb_mgr);

                job->msg_len_to_cipher_in_bytes = size;
                job->msg_len_to_hash_in_bytes = size + 20;
                job->hash_start_src_offset_in_bytes = 0;
                job->cipher_start_src_offset_in_bytes = 20;

                job->auth_tag_output = (uint8_t *) digest;
                job->auth_tag_output_len_in_bytes = 12;
                job->u.HMAC._hashed_auth_key_xor_ipad = (uint8_t *) ipad;
                job->u.HMAC._hashed_auth_key_xor_opad = (uint8_t *) opad;

                job->enc_keys = job->dec_keys = (uint32_t *) keys;
                job->src = buf;
                job->dst = buf + 20;
                job->iv = (uint8_t *) &IV;
                job->iv_len_in_bytes = 16;

                job->cipher_mode = IMB_CIPHER_CBC;
                job->hash_alg = IMB_AUTH_HMAC_SHA_1;

                switch (rand() % 3) {
                case 0:
                        job->key_len_in_bytes = 16;
                        break;
                case 1:
                        job->key_len_in_bytes = 24;
                        break;
                default:
                        job->key_len_in_bytes = 32;
                        break;
                }

                switch (rand() % 4) {
                case 0:
                        job->cipher_direction = IMB_DIR_ENCRYPT;
                        job->chain_order = IMB_ORDER_HASH_CIPHER;
                        break;
                case 1:
                        job->cipher_direction = IMB_DIR_ENCRYPT;
                        job->chain_order = IMB_ORDER_CIPHER_HASH;
                        break;
                case 2:
                        job->cipher_direction = IMB_DIR_DECRYPT;
                        job->chain_order = IMB_ORDER_CIPHER_HASH;
                        break;
                case 3:
                        job->cipher_direction = IMB_DIR_DECRYPT;
                        job->chain_order = IMB_ORDER_HASH_CIPHER;
                        break;
                }
                job = IMB_SUBMIT_JOB(mb_mgr);
                while (job)
                        job = IMB_GET_COMPLETED_JOB(mb_mgr);
        } /* end for size */

        while (IMB_FLUSH_JOB(mb_mgr) != NULL) {
                do {
                        job = IMB_GET_COMPLETED_JOB(mb_mgr);
                } while (job);
        }

        test_aux_func(mb_mgr);

        return 0;
}

#endif /* DO_TEST_H */
