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crypto: sha-mb - SHA1 multibuffer algorithm data structures
This patch introduces the data structures and prototypes of functions needed for computing SHA1 hash using multi-buffer. Included are the structures of the multi-buffer SHA1 job, job scheduler in C and x86 assembly. Signed-off-by: Tim Chen <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
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| /* | ||
| * Header file for multi buffer SHA1 algorithm data structure | ||
| * | ||
| * This file is provided under a dual BSD/GPLv2 license. When using or | ||
| * redistributing this file, you may do so under either license. | ||
| * | ||
| * GPL LICENSE SUMMARY | ||
| * | ||
| * Copyright(c) 2014 Intel Corporation. | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of version 2 of the GNU General Public License as | ||
| * published by the Free Software Foundation. | ||
| * | ||
| * This program is distributed in the hope that it will be useful, but | ||
| * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * General Public License for more details. | ||
| * | ||
| * Contact Information: | ||
| * James Guilford <[email protected]> | ||
| * Tim Chen <[email protected]> | ||
| * | ||
| * BSD LICENSE | ||
| * | ||
| * Copyright(c) 2014 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. | ||
| */ | ||
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| # Macros for defining data structures | ||
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| # Usage example | ||
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| #START_FIELDS # JOB_AES | ||
| ### name size align | ||
| #FIELD _plaintext, 8, 8 # pointer to plaintext | ||
| #FIELD _ciphertext, 8, 8 # pointer to ciphertext | ||
| #FIELD _IV, 16, 8 # IV | ||
| #FIELD _keys, 8, 8 # pointer to keys | ||
| #FIELD _len, 4, 4 # length in bytes | ||
| #FIELD _status, 4, 4 # status enumeration | ||
| #FIELD _user_data, 8, 8 # pointer to user data | ||
| #UNION _union, size1, align1, \ | ||
| # size2, align2, \ | ||
| # size3, align3, \ | ||
| # ... | ||
| #END_FIELDS | ||
| #%assign _JOB_AES_size _FIELD_OFFSET | ||
| #%assign _JOB_AES_align _STRUCT_ALIGN | ||
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| ######################################################################### | ||
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| # Alternate "struc-like" syntax: | ||
| # STRUCT job_aes2 | ||
| # RES_Q .plaintext, 1 | ||
| # RES_Q .ciphertext, 1 | ||
| # RES_DQ .IV, 1 | ||
| # RES_B .nested, _JOB_AES_SIZE, _JOB_AES_ALIGN | ||
| # RES_U .union, size1, align1, \ | ||
| # size2, align2, \ | ||
| # ... | ||
| # ENDSTRUCT | ||
| # # Following only needed if nesting | ||
| # %assign job_aes2_size _FIELD_OFFSET | ||
| # %assign job_aes2_align _STRUCT_ALIGN | ||
| # | ||
| # RES_* macros take a name, a count and an optional alignment. | ||
| # The count in in terms of the base size of the macro, and the | ||
| # default alignment is the base size. | ||
| # The macros are: | ||
| # Macro Base size | ||
| # RES_B 1 | ||
| # RES_W 2 | ||
| # RES_D 4 | ||
| # RES_Q 8 | ||
| # RES_DQ 16 | ||
| # RES_Y 32 | ||
| # RES_Z 64 | ||
| # | ||
| # RES_U defines a union. It's arguments are a name and two or more | ||
| # pairs of "size, alignment" | ||
| # | ||
| # The two assigns are only needed if this structure is being nested | ||
| # within another. Even if the assigns are not done, one can still use | ||
| # STRUCT_NAME_size as the size of the structure. | ||
| # | ||
| # Note that for nesting, you still need to assign to STRUCT_NAME_size. | ||
| # | ||
| # The differences between this and using "struc" directly are that each | ||
| # type is implicitly aligned to its natural length (although this can be | ||
| # over-ridden with an explicit third parameter), and that the structure | ||
| # is padded at the end to its overall alignment. | ||
| # | ||
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| ######################################################################### | ||
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| #ifndef _SHA1_MB_MGR_DATASTRUCT_ASM_ | ||
| #define _SHA1_MB_MGR_DATASTRUCT_ASM_ | ||
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| ## START_FIELDS | ||
| .macro START_FIELDS | ||
| _FIELD_OFFSET = 0 | ||
| _STRUCT_ALIGN = 0 | ||
| .endm | ||
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| ## FIELD name size align | ||
| .macro FIELD name size align | ||
| _FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1)) | ||
| \name = _FIELD_OFFSET | ||
| _FIELD_OFFSET = _FIELD_OFFSET + (\size) | ||
| .if (\align > _STRUCT_ALIGN) | ||
| _STRUCT_ALIGN = \align | ||
| .endif | ||
| .endm | ||
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| ## END_FIELDS | ||
| .macro END_FIELDS | ||
| _FIELD_OFFSET = (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1)) | ||
| .endm | ||
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| ######################################################################## | ||
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| .macro STRUCT p1 | ||
| START_FIELDS | ||
| .struc \p1 | ||
| .endm | ||
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| .macro ENDSTRUCT | ||
| tmp = _FIELD_OFFSET | ||
| END_FIELDS | ||
| tmp = (_FIELD_OFFSET - %%tmp) | ||
| .if (tmp > 0) | ||
| .lcomm tmp | ||
| .endif | ||
| .endstruc | ||
| .endm | ||
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| ## RES_int name size align | ||
| .macro RES_int p1 p2 p3 | ||
| name = \p1 | ||
| size = \p2 | ||
| align = .\p3 | ||
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| _FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1)) | ||
| .align align | ||
| .lcomm name size | ||
| _FIELD_OFFSET = _FIELD_OFFSET + (size) | ||
| .if (align > _STRUCT_ALIGN) | ||
| _STRUCT_ALIGN = align | ||
| .endif | ||
| .endm | ||
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| # macro RES_B name, size [, align] | ||
| .macro RES_B _name, _size, _align=1 | ||
| RES_int _name _size _align | ||
| .endm | ||
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| # macro RES_W name, size [, align] | ||
| .macro RES_W _name, _size, _align=2 | ||
| RES_int _name 2*(_size) _align | ||
| .endm | ||
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| # macro RES_D name, size [, align] | ||
| .macro RES_D _name, _size, _align=4 | ||
| RES_int _name 4*(_size) _align | ||
| .endm | ||
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| # macro RES_Q name, size [, align] | ||
| .macro RES_Q _name, _size, _align=8 | ||
| RES_int _name 8*(_size) _align | ||
| .endm | ||
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| # macro RES_DQ name, size [, align] | ||
| .macro RES_DQ _name, _size, _align=16 | ||
| RES_int _name 16*(_size) _align | ||
| .endm | ||
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| # macro RES_Y name, size [, align] | ||
| .macro RES_Y _name, _size, _align=32 | ||
| RES_int _name 32*(_size) _align | ||
| .endm | ||
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| # macro RES_Z name, size [, align] | ||
| .macro RES_Z _name, _size, _align=64 | ||
| RES_int _name 64*(_size) _align | ||
| .endm | ||
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| #endif | ||
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| ######################################################################## | ||
| #### Define constants | ||
| ######################################################################## | ||
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| ######################################################################## | ||
| #### Define SHA1 Out Of Order Data Structures | ||
| ######################################################################## | ||
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| START_FIELDS # LANE_DATA | ||
| ### name size align | ||
| FIELD _job_in_lane, 8, 8 # pointer to job object | ||
| END_FIELDS | ||
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| _LANE_DATA_size = _FIELD_OFFSET | ||
| _LANE_DATA_align = _STRUCT_ALIGN | ||
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| ######################################################################## | ||
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| START_FIELDS # SHA1_ARGS_X8 | ||
| ### name size align | ||
| FIELD _digest, 4*5*8, 16 # transposed digest | ||
| FIELD _data_ptr, 8*8, 8 # array of pointers to data | ||
| END_FIELDS | ||
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| _SHA1_ARGS_X4_size = _FIELD_OFFSET | ||
| _SHA1_ARGS_X4_align = _STRUCT_ALIGN | ||
| _SHA1_ARGS_X8_size = _FIELD_OFFSET | ||
| _SHA1_ARGS_X8_align = _STRUCT_ALIGN | ||
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| ######################################################################## | ||
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| START_FIELDS # MB_MGR | ||
| ### name size align | ||
| FIELD _args, _SHA1_ARGS_X4_size, _SHA1_ARGS_X4_align | ||
| FIELD _lens, 4*8, 8 | ||
| FIELD _unused_lanes, 8, 8 | ||
| FIELD _ldata, _LANE_DATA_size*8, _LANE_DATA_align | ||
| END_FIELDS | ||
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| _MB_MGR_size = _FIELD_OFFSET | ||
| _MB_MGR_align = _STRUCT_ALIGN | ||
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| _args_digest = _args + _digest | ||
| _args_data_ptr = _args + _data_ptr | ||
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| ######################################################################## | ||
| #### Define constants | ||
| ######################################################################## | ||
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| #define STS_UNKNOWN 0 | ||
| #define STS_BEING_PROCESSED 1 | ||
| #define STS_COMPLETED 2 | ||
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| ######################################################################## | ||
| #### Define JOB_SHA1 structure | ||
| ######################################################################## | ||
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| START_FIELDS # JOB_SHA1 | ||
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| ### name size align | ||
| FIELD _buffer, 8, 8 # pointer to buffer | ||
| FIELD _len, 4, 4 # length in bytes | ||
| FIELD _result_digest, 5*4, 32 # Digest (output) | ||
| FIELD _status, 4, 4 | ||
| FIELD _user_data, 8, 8 | ||
| END_FIELDS | ||
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| _JOB_SHA1_size = _FIELD_OFFSET | ||
| _JOB_SHA1_align = _STRUCT_ALIGN |
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