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Diffstat (limited to 'src/spdk/intel-ipsec-mb/include/aesni_emu.h')
| -rw-r--r-- | src/spdk/intel-ipsec-mb/include/aesni_emu.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/src/spdk/intel-ipsec-mb/include/aesni_emu.h b/src/spdk/intel-ipsec-mb/include/aesni_emu.h new file mode 100644 index 000000000..575fada22 --- /dev/null +++ b/src/spdk/intel-ipsec-mb/include/aesni_emu.h @@ -0,0 +1,120 @@ +/******************************************************************************* + Copyright (c) 2018, Intel Corporation + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + * Neither the name of Intel Corporation nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*******************************************************************************/ + +#ifndef _AESNI_EMU_H_ +#define _AESNI_EMU_H_ +#include <stdint.h> + +/* Interface to AESNI emulation routines */ + +/* XMM type definitions and constants */ + +#define MAX_BYTES_PER_XMM 16 +#define MAX_WORDS_PER_XMM 8 +#define MAX_DWORDS_PER_XMM 4 +#define MAX_QWORDS_PER_XMM 2 + +union xmm_reg { + uint8_t byte[MAX_BYTES_PER_XMM]; + uint16_t word[MAX_WORDS_PER_XMM]; + uint32_t dword[MAX_DWORDS_PER_XMM]; + uint64_t qword[MAX_QWORDS_PER_XMM]; +}; + +/* AESNI emulation API */ + +/** + * @brief AESKEYGENASIST instruction emulation function + * + * Assist in AES round key generation using an 8 bits Round Constant + * (RCON) specified in \a imm8, operating on 128 bits of data + * + * @param dst pointer to 128 bit buffer to store generated key + * @param src pointer to 128 bit src key + * @param imm8 round constant used to generate key + */ +IMB_DLL_LOCAL void emulate_AESKEYGENASSIST(union xmm_reg *dst, + const union xmm_reg *src, + const uint32_t imm8); + +/** + * @brief AESENC instruction emulation function + * + * Perform one round of an AES encryption flow + * + * @param dst pointer to 128 bit data (state) to operate on + * @param src pointer to 128 bit round key + */ +IMB_DLL_LOCAL void emulate_AESENC(union xmm_reg *dst, + const union xmm_reg *src); + +/** + * @brief AESENCLAST instruction emulation function + * + * Perform last round of an AES encryption flow + * + * @param dst pointer to 128 bit data (state) to operate on + * @param src pointer to 128 bit round key + */ +IMB_DLL_LOCAL void emulate_AESENCLAST(union xmm_reg *dst, + const union xmm_reg *src); + +/** + * @brief AESDEC instruction emulation function + * + * Perform one round of an AES decryption flow + * + * @param dst pointer to 128 bit data (state) to operate on + * @param src pointer to 128 bit round key + */ +IMB_DLL_LOCAL void emulate_AESDEC(union xmm_reg *dst, + const union xmm_reg *src); + +/** + * @brief AESDECLAST instruction emulation function + * + * Perform last round of an AES decryption flow + * + * @param dst pointer to 128 bit data (state) to operate on + * @param src pointer to 128 bit round key + */ +IMB_DLL_LOCAL void emulate_AESDECLAST(union xmm_reg *dst, + const union xmm_reg *src); + +/** + * @brief AESIMC instruction emulation function + * + * Perform the InvMixColumn transformation on + * a 128 bit round key + * + * @param dst pointer to 128 bit buffer to store result + * @param src pointer to 128 bit round key + */ +IMB_DLL_LOCAL void emulate_AESIMC(union xmm_reg *dst, + const union xmm_reg *src); + +#endif /* _AESNI_EMU_H_ */ |