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#include <limits.h>

#define CLEAR_SCRATCH_SIMD_REGS clear_scratch_xmms_sse

#include "include/kasumi_internal.h"
#include "include/save_xmms.h"
#include "include/clear_regs_mem.h"

#define SAVE_XMMS               save_xmms
#define RESTORE_XMMS            restore_xmms

void
kasumi_f8_1_buffer_sse(const kasumi_key_sched_t *pCtx, const uint64_t IV,
                       const void *pBufferIn, void *pBufferOut,
                       const uint32_t cipherLengthInBytes)
{
#ifndef LINUX
        DECLARE_ALIGNED(imb_uint128_t xmm_save[10], 16);

        SAVE_XMMS(xmm_save);
#endif
#ifdef SAFE_PARAM
        /* Check for NULL pointers */
        if (pCtx == NULL || pBufferIn == NULL || pBufferOut == NULL)
                return;

        /* Check input data is in range of supported length */
        if (cipherLengthInBytes == 0 ||
            cipherLengthInBytes > (KASUMI_MAX_LEN / CHAR_BIT))
                return;
#endif
        kasumi_f8_1_buffer(pCtx, IV, pBufferIn, pBufferOut,
                           cipherLengthInBytes);
#ifdef SAFE_DATA
        /* Clear sensitive data in registers */
        CLEAR_SCRATCH_GPS();
        CLEAR_SCRATCH_SIMD_REGS();
#endif
#ifndef LINUX
        RESTORE_XMMS(xmm_save);
#endif
}

void
kasumi_f8_1_buffer_bit_sse(const kasumi_key_sched_t *pCtx,
                           const uint64_t IV,
                           const void *pBufferIn, void *pBufferOut,
                           const uint32_t cipherLengthInBits,
                           const uint32_t offsetInBits)
{
#ifndef LINUX
        DECLARE_ALIGNED(imb_uint128_t xmm_save[10], 16);

        SAVE_XMMS(xmm_save);
#endif
#ifdef SAFE_PARAM
        /* Check for NULL pointers */
        if (pCtx == NULL || pBufferIn == NULL || pBufferOut == NULL)
                return;

        /* Check input data is in range of supported length */
        if (cipherLengthInBits == 0 ||
            cipherLengthInBits > KASUMI_MAX_LEN)
                return;
#endif
        kasumi_f8_1_buffer_bit(pCtx, IV, pBufferIn, pBufferOut,
                               cipherLengthInBits, offsetInBits);
#ifdef SAFE_DATA
        /* Clear sensitive data in registers */
        CLEAR_SCRATCH_GPS();
        CLEAR_SCRATCH_SIMD_REGS();
#endif
#ifndef LINUX
        RESTORE_XMMS(xmm_save);
#endif
}

void
kasumi_f8_2_buffer_sse(const kasumi_key_sched_t *pCtx, const uint64_t IV1,
                       const uint64_t IV2, const void *pBufferIn1,
                       void *pBufferOut1, const uint32_t lengthInBytes1,
                       const void *pBufferIn2, void *pBufferOut2,
                       const uint32_t lengthInBytes2)
{
#ifndef LINUX
        DECLARE_ALIGNED(imb_uint128_t xmm_save[10], 16);

        SAVE_XMMS(xmm_save);
#endif
#ifdef SAFE_PARAM
        /* Check for NULL pointers */
        if (pCtx == NULL)
                return;

        if (pBufferIn1 == NULL || pBufferOut1 == NULL)
                return;

        if (pBufferIn2 == NULL || pBufferOut2 == NULL)
                return;

        /* Check input data is in range of supported length */
        if (lengthInBytes1 == 0 || lengthInBytes1 > (KASUMI_MAX_LEN / CHAR_BIT))
                return;

        if (lengthInBytes2 == 0 || lengthInBytes2 > (KASUMI_MAX_LEN / CHAR_BIT))
                return;
#endif
        kasumi_f8_2_buffer(pCtx, IV1, IV2,
                           pBufferIn1, pBufferOut1, lengthInBytes1,
                           pBufferIn2, pBufferOut2, lengthInBytes2);
#ifdef SAFE_DATA
        /* Clear sensitive data in registers */
        CLEAR_SCRATCH_GPS();
        CLEAR_SCRATCH_SIMD_REGS();
#endif
#ifndef LINUX
        RESTORE_XMMS(xmm_save);
#endif
}

void
kasumi_f8_3_buffer_sse(const kasumi_key_sched_t *pCtx, const uint64_t IV1,
                       const uint64_t IV2, const uint64_t IV3,
                       const void *pBufferIn1, void *pBufferOut1,
                       const void *pBufferIn2, void *pBufferOut2,
                       const void *pBufferIn3, void *pBufferOut3,
                       const uint32_t lengthInBytes)
{
#ifndef LINUX
        DECLARE_ALIGNED(imb_uint128_t xmm_save[10], 16);

        SAVE_XMMS(xmm_save);
#endif
#ifdef SAFE_PARAM
        /* Check for NULL pointers */
        if (pCtx == NULL)
                return;

        if (pBufferIn1 == NULL || pBufferOut1 == NULL)
                return;

        if (pBufferIn2 == NULL || pBufferOut2 == NULL)
                return;

        if (pBufferIn3 == NULL || pBufferOut3 == NULL)
                return;

        /* Check input data is in range of supported length */
        if (lengthInBytes == 0 || lengthInBytes > (KASUMI_MAX_LEN / CHAR_BIT))
                return;
#endif
        kasumi_f8_3_buffer(pCtx, IV1, IV2, IV3,
                           pBufferIn1, pBufferOut1,
                           pBufferIn2, pBufferOut2,
                           pBufferIn3, pBufferOut3, lengthInBytes);
#ifdef SAFE_DATA
        /* Clear sensitive data in registers */
        CLEAR_SCRATCH_GPS();
        CLEAR_SCRATCH_SIMD_REGS();
#endif
#ifndef LINUX
        RESTORE_XMMS(xmm_save);
#endif
}

void
kasumi_f8_4_buffer_sse(const kasumi_key_sched_t *pCtx,
                       const uint64_t IV1, const uint64_t IV2,
                       const uint64_t IV3, const uint64_t IV4,
                       const void *pBufferIn1, void *pBufferOut1,
                       const void *pBufferIn2, void *pBufferOut2,
                       const void *pBufferIn3, void *pBufferOut3,
                       const void *pBufferIn4, void *pBufferOut4,
                       const uint32_t lengthInBytes)
{
#ifndef LINUX
        DECLARE_ALIGNED(imb_uint128_t xmm_save[10], 16);

        SAVE_XMMS(xmm_save);
#endif
#ifdef SAFE_PARAM
        /* Check for NULL pointers */
        if (pCtx == NULL)
                return;

        if (pBufferIn1 == NULL || pBufferOut1 == NULL)
                return;

        if (pBufferIn2 == NULL || pBufferOut2 == NULL)
                return;

        if (pBufferIn3 == NULL || pBufferOut3 == NULL)
                return;

        if (pBufferIn4 == NULL || pBufferOut4 == NULL)
                return;

        /* Check input data is in range of supported length */
        if (lengthInBytes == 0 || lengthInBytes > (KASUMI_MAX_LEN / CHAR_BIT))
                return;
#endif
        kasumi_f8_4_buffer(pCtx, IV1, IV2, IV3, IV4,
                           pBufferIn1, pBufferOut1,
                           pBufferIn2, pBufferOut2,
                           pBufferIn3, pBufferOut3,
                           pBufferIn4, pBufferOut4,
                           lengthInBytes);
#ifdef SAFE_DATA
        /* Clear sensitive data in registers */
        CLEAR_SCRATCH_GPS();
        CLEAR_SCRATCH_SIMD_REGS();
#endif
#ifndef LINUX
        RESTORE_XMMS(xmm_save);
#endif
}

void
kasumi_f8_n_buffer_sse(const kasumi_key_sched_t *pKeySchedule,
                       const uint64_t IV[],
                       const void * const pDataIn[], void *pDataOut[],
                       const uint32_t dataLen[], const uint32_t dataCount)
{
#ifndef LINUX
        DECLARE_ALIGNED(imb_uint128_t xmm_save[10], 16);

        SAVE_XMMS(xmm_save);
#endif
        uint32_t numLeft = dataCount;
        const uint64_t *IVPtr;
        const void * const *pDataInPtr;
        void **pDataOutPtr;
        const uint32_t *dataLenPtr;
        uint32_t i = 0;
        uint32_t numBuffs;

#ifdef SAFE_PARAM
        /* Check for NULL pointers */
        if (pKeySchedule == NULL || pDataIn == NULL || pDataOut == NULL ||
            dataLen == NULL || IV == NULL)
                return;

        for (i = 0; i < dataCount; i++) {
                /* Check for NULL pointers */
                if (pDataIn[i] == NULL || pDataOut[i] == NULL)
                        return;

                /* Check input data is in range of supported length */
                if (dataLen[i] == 0 || dataLen[i] > (KASUMI_MAX_LEN / CHAR_BIT))
                        return;
        }
#endif

        i = 0;

        /* KASUMI F8 n buffer function can handle up to 16 buffers */
        while (numLeft > 0) {
                IVPtr = &IV[i];
                pDataInPtr = &pDataIn[i];
                pDataOutPtr = &pDataOut[i];
                dataLenPtr = &dataLen[i];
                numBuffs = (numLeft > 16) ? 16 : numLeft;

                kasumi_f8_n_buffer(pKeySchedule, IVPtr, pDataInPtr, pDataOutPtr,
                                   dataLenPtr, numBuffs);
                i += numBuffs;
                numLeft -= numBuffs;
        }
#ifdef SAFE_DATA
        /* Clear sensitive data in registers */
        CLEAR_SCRATCH_GPS();
        CLEAR_SCRATCH_SIMD_REGS();
#endif
#ifndef LINUX
        RESTORE_XMMS(xmm_save);
#endif
}


void
kasumi_f9_1_buffer_sse(const kasumi_key_sched_t *pCtx, const void *pBufferIn,
                       const uint32_t lengthInBytes, void *pDigest)
{
#ifndef LINUX
        DECLARE_ALIGNED(imb_uint128_t xmm_save[10], 16);

        SAVE_XMMS(xmm_save);
#endif
#ifdef SAFE_PARAM
        /* Check for NULL pointers */
        if (pCtx == NULL || pBufferIn == NULL || pDigest == NULL)
                return;

        /* Check input data is in range of supported length */
        if (lengthInBytes == 0 || lengthInBytes > (KASUMI_MAX_LEN / CHAR_BIT))
                return;
#endif
        kasumi_f9_1_buffer(pCtx, pBufferIn, lengthInBytes, pDigest);
#ifdef SAFE_DATA
        /* Clear sensitive data in registers */
        CLEAR_SCRATCH_GPS();
        CLEAR_SCRATCH_SIMD_REGS();
#endif
#ifndef LINUX
        RESTORE_XMMS(xmm_save);
#endif
}

void
kasumi_f9_1_buffer_user_sse(const kasumi_key_sched_t *pCtx, const uint64_t IV,
                            const void *pBufferIn, const uint32_t lengthInBits,
                            void *pDigest, const uint32_t direction)
{
#ifndef LINUX
        DECLARE_ALIGNED(imb_uint128_t xmm_save[10], 16);

        SAVE_XMMS(xmm_save);
#endif
#ifdef SAFE_PARAM
        /* Check for NULL pointers */
        if (pCtx == NULL || pBufferIn == NULL || pDigest == NULL)
                return;

        /* Check input data is in range of supported length */
        if (lengthInBits == 0 || lengthInBits > KASUMI_MAX_LEN)
                return;
#endif
        kasumi_f9_1_buffer_user(pCtx, IV, pBufferIn, lengthInBits,
                                pDigest, direction);
#ifdef SAFE_DATA
        /* Clear sensitive data in registers */
        CLEAR_SCRATCH_GPS();
        CLEAR_SCRATCH_SIMD_REGS();
#endif
#ifndef LINUX
        RESTORE_XMMS(xmm_save);
#endif
}

int
kasumi_init_f8_key_sched_sse(const void *const pKey,
                             kasumi_key_sched_t *pCtx)
{
        return kasumi_init_f8_key_sched(pKey, pCtx);
}

int
kasumi_init_f9_key_sched_sse(const void *const pKey,
                             kasumi_key_sched_t *pCtx)
{
        return kasumi_init_f9_key_sched(pKey, pCtx);
}

size_t
kasumi_key_sched_size_sse(void)
{
        return kasumi_key_sched_size();
}
